CN103413392A - Electronic doorbell - Google Patents
Electronic doorbell Download PDFInfo
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- CN103413392A CN103413392A CN201310393536XA CN201310393536A CN103413392A CN 103413392 A CN103413392 A CN 103413392A CN 201310393536X A CN201310393536X A CN 201310393536XA CN 201310393536 A CN201310393536 A CN 201310393536A CN 103413392 A CN103413392 A CN 103413392A
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Abstract
The invention relates to a doorbell, in particular to an electronic doorbell. The electronic doorbell is arranged on a wall or a door frame, and comprises a button component provided with a doorbell button, and a control component used for producing a sound production control signal; the doorbell also comprises a sound production component connected with the control component; the control component can be embedded into the wall or the door frame, and is connected with the button component in a detachable way; the doorbell comprises a doorbell decoration panel arranged on the surface of the wall or the surface of the door frame; the doorbell decoration panel is provided with a through hole; the button component comprises a button shell passing through the through hole; the outer end of the button shell is provided with a convex part used for blocking the doorbell decoration panel. The button component and the control component of the electronic doorbell are connected with each other in the detachable way, so that the universality of the button component and the control component can be greatly improved after interfaces of the button component and the control component are unified; the control component of the electronic doorbell is embedded into the wall or the door frame, the button is left outside, and the doorbell decoration panel can be also arranged for detection, so that the electronic doorbell is in accordance with the whole decoration style of the wall.
Description
Technical field
The present invention relates to a kind of doorbell, be specifically related to a kind of electronic door bell.
Background technology
Electronic door bell comprises and the button assembly that bell button rings a doorbell to the visitor is provided and controls the Control Component of sounding that electronic door bell comprises wired electronic door bell and wireless electronic doorbell, and wherein wireless electronic doorbell is also referred to as remote-controlled doorbell.In the structure of existing electronic door bell, button assembly and Control Component are not all obviously separated in an one-piece construction as a global design, button assembly and Control Component all do not possess versatility substantially like this, be that button assembly can not be used in conjunction with other Control Component, perhaps Control Component can not be selected to be used in conjunction with other button assembly, the difference of Wired electronic doorbell and wireless electronic doorbell only is the difference of Control Component, that is to say what button assembly still can share, but the structure of the above-mentioned one of existing electronic door bell can not realize that same button assembly is common to Wired electronic doorbell and wireless electronic doorbell.
Simultaneously, existing most electronic door bells all adopt traditional square structure, and all parts all are exposed at surface of wall, so not only can destroy the attractive in appearance of metope, affect the decoration style of metope integral body, also easy affected by environment breaking down.Simultaneously, the appearance forrns of doorbell is single, can not provide too many selection to the consumer, so most of consumer is difficult to buy the beautiful doorbell products of profile that meets own regard.
In addition, a kind of as electronic door bell, wireless electronic doorbell comprises a transmitter, and transmitter produces the sounding control signal and sends to and be installed on indoor receiver after the button of button assembly is pressed, and the receiver prompt door of just can sounding has the people visiting outward thus.The transmitter of existing most wireless electronic doorbells all adopts the LC oscillatory circuit to produce the RF frequency, by tunable capacitor, be fine-tuning to fixing frequency again, the drawback of sort circuit maximum is exactly transmission frequency along with the passing of variation of ambient temperature and time can be offset, very easily exceed wireless safety requirement, thereby the potential safety hazard of causing, simultaneously, external environment easily affects the transmission frequency of sort circuit, the different sort circuit of mounting condition also can pass through its transmission frequency of effect of parasitic capacitance, such as be arranged on metallic door and wooden door on transmission frequency just different, even Changes in weather all can exert an influence to its transmission frequency and coverage, in addition, the artificial tunable capacitor inconvenience on producing of adjusting, make the consistance of same money product poor.
Summary of the invention
The versatility that the purpose of this invention is to provide a kind of button assembly and Control Component is good, and good looking appearance does not affect the electronic door bell of the whole decoration style of metope.
Electronic door bell is designed to the whole decoration style that various shapes meet metope, need design according to the whole decoration style of different metopes the shape of different electronic door bells on the one hand, cost is higher, and electronic door bell integral body is on surface of wall or doorframe surface on the other hand, and visual effect is also bad.Therefore the present invention, by most of parts being inserted in wall inside or the doorframe inside of doorframe bell, only leaves a door unlocked bell button outside.
For achieving the above object, the invention provides following technical scheme.
Electronic door bell, be installed on wall or doorframe, comprise the button assembly that is provided with bell button and for generation of the Control Component of sounding control signal, described doorbell also comprises the sounding component be connected with described Control Component, but described Control Component being inserted in wall inside or doorframe are inner and removably connect with button assembly.
Wherein, in described Control Component and button assembly, an assembly is provided with hook-shaped snap close, and another assembly is provided with the contiguous block with described snap fit snapping, and described button assembly and Control Component removably connect by the snapping of described snap close and contiguous block.
Wherein, described doorbell comprises the doorbell decoration panel that is arranged at surface of wall or doorframe surface, described doorbell decoration panel is provided with through hole, described button assembly comprises the button shell that is arranged in described through hole, and the outer end of described button shell is provided be used to blocking the lug boss of described doorbell decoration panel.
Wherein, described Control Component comprises the Control Component shell shielded of cylindric hollow.
Wherein, described doorbell is provided with the pilot lamp that is used to indicate described bell button position.
Wherein, described electronic door bell is wireless electronic doorbell, and the Control Component of described wireless electronic doorbell is the controlled in wireless assembly.
Wherein, described controlled in wireless assembly comprises transmitter and receiver, described receiver is connected with described sounding component, described transmitter comprises that described receiver is for receiving described sounding control signal and controlling sounding component and sound for generation of the transmitter circuitry with emission sounding control signal.
Wherein, described transmitter circuitry comprises that pushbutton switch and signal that the bell button in described button assembly is controlled produce radiating circuit, pushbutton switch is connected on power supply and signal produces between radiating circuit, signal produces radiating circuit and comprises harmonic wave inhibition and signal transmission circuit, coding circuit and PLL high-frequency oscillating circuits, and coding circuit, harmonic wave suppress and signal transmission circuit all is connected with the PLL high-frequency oscillating circuits; After the pushbutton switch closure, the PLL high-frequency oscillating circuits produces high-frequency signal, coding circuit produces modulation signal and described modulation signal is transferred to the PLL high-frequency oscillating circuits simultaneously, described high-frequency signal becomes the sounding control signal after described modulation signal modulation, described sounding control signal suppresses via harmonic wave and signal transmission circuit is launched.
Wherein, the PLL high-frequency oscillating circuits comprises for generation of the crystal oscillator Y1 of low frequency signal and for the low frequency signal frequency multiplication that crystal oscillator Y1 is produced, becomes the PLL circuit of high-frequency signal; Described PLL circuit comprises high frequency IC U3, the model of high frequency IC U3 is MICRF113YM6, described PLL high-frequency oscillating circuits also comprises capacitor C 4 and capacitor C 5, the two ends of crystal oscillator Y1 are connected with No. 5 pins with No. 4 pins of high frequency IC U3 respectively, one end of capacitor C 4 and capacitor C 5 is connected with the two ends of crystal oscillator Y1 respectively, the equal ground connection of the other end of capacitor C 4 and capacitor C 5, No. 3 pins of high frequency IC U3 are connected with described pushbutton switch.
Wherein, described harmonic wave suppresses and signal transmission circuit comprises resistance R 5, inductance L 2, inductance L 3, capacitor C 6, capacitor C 7, capacitor C 8, capacitor C 9 and antenna ANT, and resistance R 5, inductance L 2 and capacitor C 9 series connection, be connected between pushbutton switch and ground; Capacitor C 8 one ends are connected with the contact of inductance L 2 with resistance R 5, other end ground connection; Capacitor C 6, inductance L 3 and antenna ANT series connection, an end of capacitor C 6 is connected in the contact of inductance L 2 and capacitor C 9; One end of capacitor C 7 is connected with the contact of antenna ANT with inductance L 3, other end ground connection.
The invention has the beneficial effects as follows: button assembly and the Control Component of electronic door bell removably connect, and its interface can make the versatility of button assembly and Control Component greatly improve after reunification; By the Control Component being inserted in wall inside of electronic door bell or doorframe inside, stay button outside, also can be equipped with simultaneously the doorbell decoration panel and decorate, the doorbell decoration panel can be selected suitable figure, shape and color etc., to meet the decoration style of metope integral body; Wireless electronic doorbell adopts crystal oscillator by the frequency multiplication of phase locked loop technology, to produce the transmitter circuitry of the higher-order of oscillation, frequency stabilization, and the production debugging is convenient, easily meets the requirement of radio safety; The position that pilot lamp carrys out the indicating door bell button is set simultaneously, makes the guest that come to visit evening can find easily bell button.
The accompanying drawing explanation
Fig. 1 is the structural representation of electronic door bell of the present invention.
Fig. 2 is the decomposing schematic representation of button assembly and controlled in wireless assembly.
Fig. 3 is the schematic diagram that button assembly and controlled in wireless assembly are connected.
Fig. 4 is the schematic diagram that circuit board installation frame and Control Component shell are connected.
Fig. 5 is the structural representation of circuit board installation frame.
Fig. 6 is the structural representation of button assembly.
Fig. 7 is the transmitter circuitry block diagram.
Fig. 8 is the transmitter circuitry structural representation.
Reference numeral comprises: Control Component 1, circuit board 111, circuit board installation frame 112, battery 113, antenna 114, disk 115, snap close 116, latch hook 117, Control Component shell 12, battery cover 121, lockhole 122, button assembly 2, bell button 21, button shell 22, contiguous block 221, lug boss 222, raised line 223, doorbell decoration panel 3, LED 4, signal produce radiating circuit 5.
Embodiment
Below in conjunction with drawings and Examples, the present invention is elaborated.
As shown in Figure 1, electronic door bell of the present invention, comprise button assembly 2 and for generation of the Control Component 1 of sounding control signal, described doorbell also comprises the sounding component (not shown) be connected with described Control Component 1, described Control Component 1 being inserted in wall inside or doorframe are inner and removably connect with button assembly 2, in conjunction with Fig. 3 and Fig. 6, in Control Component 1 and button assembly 2, an assembly is provided with hook-shaped snap close 116, another assembly is provided with the contiguous block 221 that coordinates snapping with described snap close 116, as shown in Figure 3, button assembly 2 and Control Component 1 removably connect by the snapping of snap close 116 and contiguous block 221.In the present embodiment, Control Component 1 is provided with hook-shaped snap close 116, and button assembly 2 is provided with the contiguous block 221 that coordinates snapping with described snap close 116.Button assembly 2 removably connects with Control Component 1, as long as unified interface, same button assembly 2 just can be used in conjunction with from multiple different Control Component, such as, same button assembly 2 can be connected to use with the controlled in wireless assembly, also can be connected to use with wired Control Component, in the present embodiment, Control Component 1 be the controlled in wireless assembly.In like manner, same Control Component 1 can also be used in conjunction with from multiple different button assembly 2.Therefore the versatility of button assembly 2 and Control Component 1 is greatly improved, and the user can select wired Control Component or controlled in wireless assembly according to the situation of oneself.
The controlled in wireless assembly of the present embodiment comprises transmitter and receiver, described receiver is connected with described sounding component, described transmitter comprises for generation of the transmitter circuitry with emission sounding control signal, described receiver is for receiving described sounding control signal and controlling sounding component and sound, as shown in Figure 2, the controlled in wireless assembly also comprises the circuit board 111 that carries described transmitter circuitry, for the circuit board installation frame 112 of this circuit board 111 is installed, for the power supply to the transmitter circuitry power supply and the antenna 114 be connected with circuit board 111 for transmitting, circuit board 111 is fixed on circuit board installation frame 112.As shown in Figure 5, an end of circuit board installation frame 112 is provided with a disk 115 jaggy, and described hook-shaped snap close 116 just is arranged on one side of disk 115, and snap close 116 has two.The another side of disk 115 is provided with two latch hooks 117, as shown in Figure 2, the controlled in wireless assembly of the present embodiment also is provided with the Control Component shell 12 shielded of cylindric hollow, circuit board 111, power supply and antenna 114 all are arranged in this Control Component shell 12, certainly, Control Component shell 12 is not limited to the controlled in wireless assembly, wired Control Component equally also can have, the position of the corresponding latch hook 117 of Control Component shell 12 is provided with lockhole 122, as shown in Figure 4, when 12 assemblings of Control Component shell are got on, promoting Control Component shell 12 buckles in the lockhole 122 of Control Component shell 12 two latch hooks 117 to get final product.The circuit board installation frame 112 of the present embodiment is one-body molded.Control Component shell 12 cylindraceous, make electronic door bell of the present invention be different from traditional square structure, what is more important, drum easier being inserted in wall inside or doorframe inside, also minimum to the destruction of body of wall or doorframe simultaneously, only need out a roundlet hole to get final product.By Control Component 1 being inserted in wall inside, the protection of Control Component shell 12 is arranged again simultaneously, circuit board 111 is not easily damaged, can guarantee the steady operation of transmitter circuitry on circuit board 111 yet.In the present embodiment, because Control Component 1 is the controlled in wireless assembly, so adopt battery 113 to power to transmitter circuitry as power supply, as shown in Figure 2, therefore the part of Control Component shell 12 is also battery cover 121, and battery cover 121 can be taken apart separately, is convenient for changing battery 113.
Doorbell of the present invention is provided with the position that pilot lamp carrys out indicating door bell button 21, in conjunction with Fig. 2 and Fig. 5, in the middle of the disk 115 of circuit board installation frame 112, a circular hole is set, described pilot lamp passes this circular hole and is connected with circuit board 111, power supply is powered to pilot lamp by the related circuit on circuit board 111, in the present embodiment, adopt LED 4 as pilot lamp, because energy-conservation, long service life that LED 4 has, the characteristics that stability is high and glow color is various, LED 4 is long brightly can not consume too many electric weight yet.The position that pilot lamp indicating door bell button 21 has been arranged, in the environment of insufficient light, for example evening, the people of visiting still can know the position of bell button 21 exactly, the people of convenient visiting rings a doorbell.
As shown in Figure 1, electronic door bell of the present invention also comprises doorbell decoration panel 3, doorbell decoration panel 3 is installed on surface of wall or doorframe surface, doorbell decoration panel 3 is provided with circular through hole, as shown in Figure 6, described button assembly 2 comprises bell button 21 and button shell 22, button shell 22 is arranged in the through hole of doorbell decoration panel 3, button shell 22 hollows, bell button 21 is arranged in button shell 22, two contiguous blocks 221 are arranged on the inboard, the inner of button shell 22, the outer end of button shell 22 is provided with the lug boss 222 be used to blocking doorbell decoration panel 3, button shell 22 lateral surfaces are provided with some raised lines 223, button shell 22 fits inside in the through hole of doorbell decoration panel 3, raised line 223 can play the effect be connected of stablizing between doorbell decoration panel 3 and button shell 22.Electronic door bell of the present invention, Control Component 1 is whole, even together with a part of being inserted in wall inside or the doorframe inside of button assembly 2, the bell button 21 of only leaving a door unlocked exposes on the wall surface or the doorframe surface, be equipped with again doorbell decoration panel 3, by selecting suitable figure, shape and the color etc. of doorbell decoration panel 3, meet the decoration style of metope integral body.Electronic door bell of the present invention be it seems succinctly elegant in appearance from the outside.
In the time of button assembly 2 will being connected with Control Component 1, only snap close 116 and contiguous block 221 need be aimed at, rotary press button module 2 or Control Component 1 get final product snap close 116 fastening contiguous blocks 221.Bell button 21 adopts light transmissive material to make, and after button assembly 2 and Control Component 1 assembled, the position of LED 4 was just in bell button 21, and the luminous bell button 21 that sees through of LED 4, to reach the purpose of indicating door bell button 21 positions.
The Control Component 1 of the present embodiment is the controlled in wireless assembly, and the controlled in wireless assembly comprises transmitter, and transmitter comprises for generation of the transmitter circuitry with emission sounding control signal.As shown in Figure 7, described transmitter circuitry comprises that pushbutton switch S1 and signal that the bell button 21 in described button assembly is controlled produce radiating circuit 5, pushbutton switch S1 is connected on power supply and signal produces between radiating circuit 5, signal produces radiating circuit 5 and comprises harmonic wave inhibition and signal transmission circuit, coding circuit and PLL high-frequency oscillating circuits, and coding circuit, harmonic wave suppress and signal transmission circuit all is connected with the PLL high-frequency oscillating circuits; After pushbutton switch S1 closure, the PLL high-frequency oscillating circuits produces high-frequency signal, coding circuit produces modulation signal and described modulation signal is transferred to the PLL high-frequency oscillating circuits simultaneously, described high-frequency signal becomes the sounding control signal after described modulation signal modulation, described sounding control signal suppresses via harmonic wave and signal transmission circuit is launched.As shown in Figure 8, the PLL high-frequency oscillating circuits comprises for generation of the crystal oscillator Y1 of low frequency signal and for the low frequency signal frequency multiplication that crystal oscillator Y1 is produced, becomes the PLL circuit of high-frequency signal.Described PLL circuit comprises high frequency IC U3, the model of high frequency IC U3 is MICRF113YM6, described PLL high-frequency oscillating circuits also comprises capacitor C 4 and capacitor C 5, the two ends of crystal oscillator Y1 are connected with No. 5 pins with No. 4 pins of high frequency IC U3 respectively, one end of capacitor C 4 and capacitor C 5 is connected with the two ends of crystal oscillator Y1 respectively, the equal ground connection of the other end of capacitor C 4 and capacitor C 5, No. 3 pins of high frequency IC U3 are connected with described pushbutton switch S1.Described harmonic wave suppresses and signal transmission circuit comprises resistance R 5, inductance L 2, inductance L 3, capacitor C 6, capacitor C 7, capacitor C 8, capacitor C 9 and antenna ANT, and resistance R 5, inductance L 2 and capacitor C 9 series connection, be connected between pushbutton switch S1 and ground; Capacitor C 8 one ends are connected with the contact of inductance L 2 with resistance R 5, other end ground connection; Capacitor C 6, inductance L 3 and antenna ANT series connection, an end of capacitor C 6 is connected in the contact of inductance L 2 and capacitor C 9; One end of capacitor C 7 is connected with the contact of antenna ANT with inductance L 3, other end ground connection.
As shown in Figure 7, transmitter circuitry also comprises mu balanced circuit, and mu balanced circuit is connected between power supply and pushbutton switch S1, simultaneously, power supply is also powered to the LED 4 as pilot lamp by transmitter circuitry, and LED 4 connects with resistance R 4, is connected between the contact and ground of mu balanced circuit and pushbutton switch S1.In the present embodiment, adopt battery 113 as power supply, battery 113 voltages produce galvanic current and press after mu balanced circuit, in conjunction with Fig. 1, due to the current/voltage of LED 4, be not subjected to the control of pushbutton switch S1, so LED 4 is in normal bright state, the position of indicating door bell button 21.When bell button 21 is not pressed, when namely pushbutton switch S1 disconnected, signal produced radiating circuit 5 and does not switch on and do not work, to save battery 113 electric weight; When bell button 21 is pressed, while being pushbutton switch S1 closure, signal produces radiating circuit 5 energisings, crystal oscillator Y1 in the PLL high-frequency oscillating circuits produces low frequency signal becomes high-frequency signal through PLL circuit frequency multiplication, coding circuit produces modulation signal and described modulation signal is transferred to the PLL high-frequency oscillating circuits simultaneously, described high-frequency signal becomes the sounding control signal after described modulation signal modulation, described sounding control signal suppresses via harmonic wave and signal transmission circuit is launched.Wherein, crystal oscillator Y1, capacitor C 4 and capacitor C 5 form the low frequency reference frequency, adopt the crystal oscillator Y1 of different frequency value can obtain different high-frequency emission frequencies, for example, adopt the crystal oscillator of 9.84375MHz, the PLL circuit of the present embodiment can carry out 32 frequencys multiplication, and the PLL high-frequency oscillating circuits of the present embodiment can obtain the high-frequency signal of 9.84375*32=315MHz.The resistance R 5 of harmonic wave inhibition and signal transmission circuit is be used to limiting high-frequency emission power, and inductance L 2 and capacitor C 8 suppress for high-frequency harmonic, and capacitor C 6, capacitor C 9, inductance L 3 and capacitor C 7 also have for antenna matching the function that harmonic wave suppresses simultaneously.
Adopt crystal oscillator by the frequency multiplication of phase locked loop technology, to produce the transmitter circuitry of the higher-order of oscillation, frequency stabilization, the production debugging is convenient, easily meets the requirement of radio safety.
Finally should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; although with reference to preferred embodiment, the present invention has been done to explain; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement technical scheme of the present invention, and not break away from essence and the scope of technical solution of the present invention.
Claims (10)
1. electronic door bell, be installed on wall or doorframe, comprise the button assembly that is provided with bell button and for generation of the Control Component of sounding control signal, described doorbell also comprises the sounding component be connected with described Control Component, it is characterized in that: but described Control Component being inserted in wall inside or doorframe are inner and removably connect with button assembly.
2. electronic door bell according to claim 1, it is characterized in that: in described Control Component and button assembly, an assembly is provided with hook-shaped snap close, another assembly is provided with the contiguous block with described snap fit snapping, and described button assembly and Control Component removably connect by the snapping of described snap close and contiguous block.
3. electronic door bell according to claim 1, it is characterized in that: described doorbell comprises the doorbell decoration panel that is arranged at surface of wall or doorframe surface, described doorbell decoration panel is provided with through hole, described button assembly comprises the button shell that is arranged in described through hole, and the outer end of described button shell is provided be used to blocking the lug boss of described doorbell decoration panel.
4. electronic door bell according to claim 1, it is characterized in that: described Control Component comprises the Control Component shell shielded of cylindric hollow.
5. electronic door bell according to claim 1, it is characterized in that: described doorbell is provided with the pilot lamp that is used to indicate described bell button position.
6. electronic door bell according to claim 1, it is characterized in that: described electronic door bell is wireless electronic doorbell, the Control Component of described wireless electronic doorbell is the controlled in wireless assembly.
7. electronic door bell according to claim 6, it is characterized in that: described controlled in wireless assembly comprises transmitter and receiver, described receiver is connected with described sounding component, described transmitter comprises that described receiver is for receiving described sounding control signal and controlling sounding component and sound for generation of the transmitter circuitry with emission sounding control signal.
8. electronic door bell according to claim 6, it is characterized in that: described transmitter circuitry comprises that pushbutton switch and signal that the bell button in described button assembly is controlled produce radiating circuit, pushbutton switch is connected on power supply and signal produces between radiating circuit, signal produces radiating circuit and comprises harmonic wave inhibition and signal transmission circuit, coding circuit and PLL high-frequency oscillating circuits, and coding circuit, harmonic wave suppress and signal transmission circuit all is connected with the PLL high-frequency oscillating circuits; After the pushbutton switch closure, the PLL high-frequency oscillating circuits produces high-frequency signal, coding circuit produces modulation signal and described modulation signal is transferred to the PLL high-frequency oscillating circuits simultaneously, described high-frequency signal becomes the sounding control signal after described modulation signal modulation, described sounding control signal suppresses via harmonic wave and signal transmission circuit is launched.
9. electronic door bell according to claim 8 is characterized in that: the PLL high-frequency oscillating circuits comprises for generation of the crystal oscillator Y1 of low frequency signal and for the low frequency signal frequency multiplication that crystal oscillator Y1 is produced, becomes the PLL circuit of high-frequency signal; Described PLL circuit comprises high frequency IC U3, the model of high frequency IC U3 is MICRF113YM6, described PLL high-frequency oscillating circuits also comprises capacitor C 4 and capacitor C 5, the two ends of crystal oscillator Y1 are connected with No. 5 pins with No. 4 pins of high frequency IC U3 respectively, one end of capacitor C 4 and capacitor C 5 is connected with the two ends of crystal oscillator Y1 respectively, the equal ground connection of the other end of capacitor C 4 and capacitor C 5, No. 3 pins of high frequency IC U3 are connected with described pushbutton switch.
10. electronic door bell according to claim 8, it is characterized in that: described harmonic wave suppresses and signal transmission circuit comprises resistance R 5, inductance L 2, inductance L 3, capacitor C 6, capacitor C 7, capacitor C 8, capacitor C 9 and antenna ANT, resistance R 5, inductance L 2 and capacitor C 9 series connection, be connected between pushbutton switch and ground; Capacitor C 8 one ends are connected with the contact of inductance L 2 with resistance R 5, other end ground connection; Capacitor C 6, inductance L 3 and antenna ANT series connection, an end of capacitor C 6 is connected in the contact of inductance L 2 and capacitor C 9; One end of capacitor C 7 is connected with the contact of antenna ANT with inductance L 3, other end ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310393536.XA CN103413392B (en) | 2013-09-03 | 2013-09-03 | Electronic door bell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310393536.XA CN103413392B (en) | 2013-09-03 | 2013-09-03 | Electronic door bell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103413392A true CN103413392A (en) | 2013-11-27 |
| CN103413392B CN103413392B (en) | 2016-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310393536.XA Expired - Fee Related CN103413392B (en) | 2013-09-03 | 2013-09-03 | Electronic door bell |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109584485A (en) * | 2017-09-28 | 2019-04-05 | 丁鑫 | A kind of wireless doorbell |
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| US5757305A (en) * | 1994-07-29 | 1998-05-26 | Dimango Products | Transmitter for wireless audible indication system |
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| CN201730503U (en) * | 2010-05-25 | 2011-02-02 | 朱志强 | Video doorbell with electronic peephole viewer |
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| CN202189417U (en) * | 2011-07-19 | 2012-04-11 | 慈溪市一栋电子有限公司 | Multifunctional wireless doorbell |
| CN203659123U (en) * | 2013-09-03 | 2014-06-18 | 东莞骏威电子制品有限公司 | Electronic doorbell |
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2013
- 2013-09-03 CN CN201310393536.XA patent/CN103413392B/en not_active Expired - Fee Related
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| US5757305A (en) * | 1994-07-29 | 1998-05-26 | Dimango Products | Transmitter for wireless audible indication system |
| CN201018617Y (en) * | 2006-12-12 | 2008-02-06 | 王贵 | Multifunctional wireless calling system |
| CN201730503U (en) * | 2010-05-25 | 2011-02-02 | 朱志强 | Video doorbell with electronic peephole viewer |
| CN201937759U (en) * | 2010-11-30 | 2011-08-17 | 陈庆国 | Doorphone and door with same |
| CN202189417U (en) * | 2011-07-19 | 2012-04-11 | 慈溪市一栋电子有限公司 | Multifunctional wireless doorbell |
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| 无: ""micrf113"，http://wenku.baidu.com/view/aab5b2d184254b35eefd34b9.html", 《百度文库》, 3 November 2010 (2010-11-03) * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109584485A (en) * | 2017-09-28 | 2019-04-05 | 丁鑫 | A kind of wireless doorbell |
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| CN103413392B (en) | 2016-05-04 |
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Granted publication date: 20160504 Termination date: 20190903 |