CN207677492U - A kind of doorbell control system power supply circuit and electronic door bell - Google Patents
A kind of doorbell control system power supply circuit and electronic door bell Download PDFInfo
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- CN207677492U CN207677492U CN201820014800.2U CN201820014800U CN207677492U CN 207677492 U CN207677492 U CN 207677492U CN 201820014800 U CN201820014800 U CN 201820014800U CN 207677492 U CN207677492 U CN 207677492U
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Abstract
The utility model is related to doorbell technical field, a kind of doorbell control system power supply circuit and electronic door bell are related generally to.The power supply band circuit include：Controllable switch module is connected on sound production doorbell between the both ends of the secondary coil of doorbell transformer；Rectification module is electrically connected the both ends of the controllable switch module, and the AC rectification for exporting the doorbell transformer is at direct current electricity output；Energy-storage module includes the farad capacitor for storing electric energy；The energy-storage module is electrically connected to the rectification module, and in the power storage to the farad capacitor for exporting the rectification module when the controllable switch module disconnects；The energy-storage module is electrically connected to doorbell control module, and exports the electric energy being stored in the farad capacitor to the doorbell control module when the controllable switch module is closed.Have the advantages that reliability height, wide temperature range, manufacture and maintenance cost are low.
Description
Technical field
The utility model is related to doorbell technical field, a kind of doorbell control system power supply circuit and electronic gate are related generally to
Bell.
Background technology
Traditional Machinery door bell system block diagram is as shown in Figure 1, tradition machinery doorbell can substantially be divided into three parts：
High pressure alternating current is depressurized to the 8-24V worked normally for small bell by transformer.
Doorway button is typically placed at outdoor doorway, and when button is pressed, the current supply circuit of small bell is connected, and small bell is sent out
Sound.
Small bell：It is general there are two types of small bell, mechanical small bell and electronic small bell, when normal voltage is provided can normal sounding, one
As be positioned over interior.
With the development of the technologies such as image wireless, radio visual doorbell has begun gradually to access traditional Machinery door bell.
The access of radio visual doorbell will ensure that tradition machinery doorbell can work normally.I.e. radio visual doorbell should drive traditional
Machinery（Electronics）Small bell ensures the normal power supply of its own again.In order to access traditional Machinery door bell system, needing will be original
Button be substituted for controllable relay, when the button above video doorbell is pressed, CPU master control systems detect button believe
Number, relay is closed by driving control relay circuit, and Machinery door bell can speak.
Video doorbell and common mechanical key doorbell it is maximum difference lies in：Video doorbell needs are powered.At present
It is general that there are two types of the power supply modes of form：
Lithium battery power supply is built in using large capacity rechargeable lithium battery inside video doorbell, needs periodically to remove charging.
Original system takes a little, as shown in Fig. 2, there is electricity at relay both ends when relay is not closed, in relay
Device can take electricity when not closed by original system.But two terminal shortcircuit of relay has no when relay is closed
Voltage is little Rong built in inside video doorbell to solve the problems, such as not taking electricity, traditional method under relay closed state
The rechargeable lithium battary of amount.When relay is closed, system automatically switches to lithium battery power supply, to ensure video doorbell
Normal work.
In conclusion mostly using lithium battery power supply greatly in technology at present.Wireless doorbell is mounted in mostly on outdoor doorframe,
Use environment is severe, can all have a significant impact to the service life of lithium battery, reliability, and have the risk of explosion.When with using
Between increase, lithium battery has been at ceaselessly charging and discharging state, and the capacity attenuation of lithium battery and service life can all substantially reduce.Separately
Outside, lithium battery needs dedicated charging circuit, cost that can also increase very much.
Utility model content
The utility model proposes a kind of doorbell control system power supply circuits, have reliability height, wide temperature range, manufacture
The advantage low with maintenance cost.The doorbell control system power supply circuit includes：
Controllable switch module is connected on sound production doorbell between the both ends of the secondary coil of doorbell transformer；
Rectification module is electrically connected the both ends of the controllable switch module, the exchange for exporting the doorbell transformer
Electric rectification is at direct current electricity output；
Energy-storage module includes the farad capacitor for storing electric energy；
The energy-storage module is electrically connected to the rectification module, and will be described whole when the controllable switch module disconnects
In the power storage to the farad capacitor of flow module output；
The energy-storage module is electrically connected to doorbell control module, and will be stored in when the controllable switch module is closed
Electric energy in the farad capacitor is exported to the doorbell control module.
In above-mentioned technical proposal, traditional lithium battery is substituted using the farad capacitor of large capacity.Farad capacitor has very
High reliability, the aging memory effect of no lithium battery.Also the increase with usage time is not present, what service life and capacity declined
Defect.Additional charging circuit is not needed, while greatly reducing power supply circuit cost, greatly improves the reliable of power supply circuit
Property.In addition, capacitance can be full of far faster than lithium battery in several seconds by the charging rate of farad capacitor.
Preferably, the farad capacitor at least there are two, and be connected in the energy-storage module；The energy-storage module
Further include the pressure unit for being electrically connected each farad capacitor, the pressure unit electricity makes the electricity at each farad capacitor both ends
Pressure is consistent.
Preferably, further including boost module；The energy-storage module is electrically connected to the doorbell control through the boost module
Molding block.
Preferably, the farad capacitor at least there are two, and be connected in parallel in the energy-storage module.
Preferably, further including voltage reduction module, the energy-storage module is electrically connected to the rectification mould through the voltage reduction module
Block.
Preferably, further including current limliting module, the energy-storage module is electrically connected through the voltage reduction module and the current limliting module
It is connected to the rectification module.
Preferably, the sound production doorbell is Machinery door bell.
Preferably, the sound production doorbell is electronic door bell.
Preferably, the controllable switch module is two-way controllable switch.
A kind of electronic door bell, including outdoor controller, doorbell control system, sound production doorbell, doorbell transformer, feature exist
In：The doorbell control system includes the doorbell control system power supply circuit described in any one of above-mentioned items；The doorbell
Control module is electrically connected the control terminal of the controllable switch module and the outdoor controller, according to the letter of the outdoor controller
Number control controllable switch module closure/disconnection.
In above-mentioned technical proposal, doorbell control system power supply circuit substitutes traditional lithium electricity using the farad capacitor of large capacity
Pond.Farad capacitor has extreme high reliability, the aging memory effect of no lithium battery.Also the increasing with usage time is not present
Add, the defect in service life and capacity decline.Additional charging circuit is not needed, while greatly reducing power supply circuit cost, greatly
The big reliability for improving power supply circuit.In addition, the charging rate of farad capacitor is far faster than lithium battery, it can be by capacitance in several seconds
It is full of.
Description of the drawings
Fig. 1 shows traditional Machinery door bell system block diagram.
Fig. 2 shows the electronic visual door bell and button system block diagrams for taking electricity based on original system in the prior art.
Fig. 3 shows the electronic visual door bell and button system block diagram one of embodiment one.
Fig. 4 shows the electronic visual door bell and button system block diagram two of embodiment two.
Fig. 5 shows the doorbell control system power supply circuit system block diagram of the utility model embodiment.
Fig. 6 shows the accumulator block diagram one of the utility model embodiment.
Fig. 7 shows the accumulator block diagram two of the present embodiment new embodiment.
Specific implementation mode
The embodiment of the utility model is described in detail below in conjunction with attached drawing.
This specific embodiment is only the explanation to the utility model, is not the limitation to utility model, this field
Technical staff can as needed make the present embodiment the modification of not creative contribution after reading this specification, but only
The protection of Patent Law is all received in the right of the utility model.
Embodiment one
A kind of electronic door bell as shown in Figure 3, including outdoor controller, doorbell control system, sound production doorbell, doorbell transformation
Device.
Outdoor controller is typically mounted at outdoor and is used to detect the alarm functionality whether user triggers doorbell.It is outdoor
Controller can be that generation can be sent out when doorbell control module detects that bell button is pressed mounted on outdoor bell button
The trigger signal that table bell button is pressed.
Doorbell control system includes doorbell control module, image sensing module, Wi-Fi wireless modules, power supply circuit.Image
Sensor assembly is for monitoring and recording outdoor images；Wi-Fi wireless modules realize the wireless data transmission of doorbell control system；
Power supply circuit is used to take electricity to work normally for doorbell control module by doorbell transformer；Doorbell control module and doorbell control system
Other modules of system and other devices electrical connection of electronic door bell, completion is cooperated for triggering outdoor control to coordinate them
The work such as a series of later jingle bells of device processed, calling transmission.
Doorbell transformer, including primary coil and secondary coil.Wherein, primary coil accesses 110V-220V high pressure alternating currents,
Secondary coil output buck is the 8-24V voltages to work suitable for sound production doorbell.
As shown in figure 5, the power supply circuit of doorbell control system includes：Controllable switch module, rectification module, voltage reduction module,
Current limliting module and energy-storage module.
Controllable switch module connects to form the secondary wire of doorbell transformer with the secondary coil of doorbell transformer, sounding small bell
Enclose circuit.Controllable switch module can be controllable analog switch, mechanical switch, digital switch etc..The control of controllable switch module
End processed is electrically connected with doorbell control module, can be closed or be disconnected according to the control signal of doorbell control module.
Rectification module is electrically connected the both ends of controllable switch module.Rectification module in the present embodiment can be rectifier bridge etc.
Any rectification circuit or rectification chip that alternating current can be converted to direct current.When controllable switch module disconnects, doorbell
The secondary coil circuit of transformer disconnects at controllable switch module, be located at controllable switch module both ends, through doorbell transformer
The 8-24V low-voltage ACs of output are input to rectification module, and rectified module is rectified into direct current electricity output.
Voltage reduction module, the 8-24V voltage dcs decompression that electrical connection rectification module exports rectification module are suitable doorbell
The voltage of control module work（Usually 1.2-2.5V）Output.Voltage reduction module can be BUCK reduction voltage circuits, or band
There are the BOOST-BUCK step-up/step-down circuits of buck functionality.
Current limliting module is electrically connected the output end and energy-storage module of voltage reduction module, for the charging current of energy-storage module into
Row limitation, prevents excessive charging current from being impacted to front stage circuits.Specifically, current limliting module can be according to practical application
Situation selection with the current-limiting resistance suitably prevented.
Energy-storage module includes the farad capacitor for storing electric energy.Energy-storage module is electrically connected current limliting module and doorbell control
Module.Using farad capacitor as energy-storage travelling wave tube, by the power storage exported through current limliting module in farad capacitor, and in door
When bell control module is power free reliable working power in short-term is provided for it.Existing farad capacitor is generally low-voltage capacitance
（2.7V）, in order to provide sufficiently high operating voltage for doorbell control module.In the energy-storage module of the present embodiment, for storing up
The farad capacitor of energy samples mode as shown in FIG. 6 and connects.This energy storage mode（Series connection accumulation mode）Need at least two property
The same farad capacitor of energy parameter is used in series and needs pressure unit.Pressure unit（Such as South Korea KORCHIP
The BW6101 voltage equalizing protection plates of VINATECH companies）Respectively with the farad capacitor of connecting of the be useful for energy storage in energy-storage module
Electrical connection, for so that energy-storage module is in energy storage, the voltage at each farad capacitor both ends to be unanimously maintained at their highest
Below operating voltage（2.7V）.
The course of work of electronic door bell based on the present embodiment is as follows：
When not triggered by user mounted on outdoor outdoor controller, controllable switch module is off.Doorbell
The secondary coil circuit of transformer disconnects at controllable switch module, and sound production doorbell is not powered, and will not make a sound.Doorbell becomes
It is 8-24V direct currents that the 8-24V alternating voltages of the secondary coil output of depressor, which are exported through controllable switch module to rectification module rectification,
Electricity, then exported to doorbell control module through voltage reduction module and current limliting module through a step and provide working power for it.On the other hand, whole
Flow module exports 8-24V direct currents, is exported to accumulator by voltage reduction module and current limliting module, to the farad electricity of energy-storage module
Capacity charge.In energy-storage module charging process, current limliting module limits its charging current, to prevent excessive charging current from damaging
Bad front stage circuits.
When user's triggering is mounted on outdoor outdoor controller（For example, outdoor bell button is pressed）When, doorbell control
Molding block detects that the signal for the outdoor controller being triggered, control controllable switch module are closed.The secondary wire of doorbell transformer
Enclose circuit conducting, sound production doorbell energization sounding.Since controllable switch module is closed, the output end of rectification module is short-circuited.Doorbell
The 8-24V alternating voltages of the secondary coil output of transformer it can not provide working power for doorbell control module.At this point, energy storage
The electric energy being stored in its farad capacitor is exported to doorbell control module and provides working power for it by module, to ensure doorbell control
The normal work of molding block.
In order to improve the compatibility to sound production doorbell, controllable switch module is preferably with two-way controllable switch.
For most of electronic small bells, after doorbell control module detects the signal for the outdoor controller being triggered, control
The process of electronic small bell sounding processed is：
First, doorbell control module controls two-way controllable switch one-way conduction, and doorbell transformer provides half for electronic small bell
Wave power supply so that electronic small bell is in can be with the state of sounding；
Secondly, doorbell control module controls two-way controllable switch bidirectional conduction for a period of time, and doorbell transformer is electronic bell
Pan provides of short duration full wave power supply so that the operation of its sounding is triggered after electronic small bell detects full wave power supply, electronic small bell
Start sounding；
Finally, doorbell control module controls two-way controllable switch and returns to one-way conduction state, and doorbell transformer is electronic bell
Pan provides half wave power supply so that electronic small bell can continue sounding and terminate to one section of music.
For Machinery door bell and small part electronic small bell, doorbell control module is detected in doorbell control module and is triggered
Outdoor controller signal, control two-way controllable switch and be closed（One-way conduction or bidirectional conduction）, can make sounding door
Bell energization sounding.
Embodiment two
A kind of electronic door bell as shown in Figure 4, including outdoor controller, doorbell control system, sound production doorbell, doorbell transformation
Device.
Outdoor controller is typically mounted at outdoor also, is used to detect the alarm functionality whether user triggers doorbell.It is outdoor
Controller can be that generation can be sent out when doorbell control module detects that bell button is pressed mounted on outdoor bell button
The trigger signal that table bell button is pressed.
Doorbell control system includes doorbell control module, image sensing module, Wi-Fi wireless modules, power supply circuit.Image
Sensor assembly is for monitoring and recording outdoor images；Wi-Fi wireless modules realize the wireless data transmission of doorbell control system；
Power supply circuit is used to take electricity to work normally for doorbell control module by doorbell transformer；Doorbell control module and doorbell control system
Other modules of system and other devices electrical connection of electronic door bell, completion is cooperated for triggering outdoor control to coordinate them
The work such as a series of later jingle bells of device processed, calling transmission.
Doorbell transformer, including primary coil and secondary coil.Wherein, primary coil accesses 110V-220V high pressure alternating currents,
Secondary coil output buck is the 8-24V voltages to work suitable for sound production doorbell.
As shown in figure 5, the power supply circuit of doorbell control system includes：Controllable switch module, rectification module, voltage reduction module,
Current limliting module, boost module and energy-storage module.
Controllable switch module connects to form the secondary wire of doorbell transformer with the secondary coil of doorbell transformer, sounding small bell
Enclose circuit.Controllable switch module can be controllable analog switch, mechanical switch, digital switch etc..The control of controllable switch module
End processed is electrically connected with doorbell control module, can be closed or be disconnected according to the control signal of doorbell control module.
Rectification module is electrically connected the both ends of controllable switch module.Rectification module in the present embodiment can be rectifier bridge etc.
Any rectification circuit or rectification chip that alternating current can be converted to direct current.When controllable switch module disconnects, doorbell
The secondary coil circuit of transformer disconnects at controllable switch module, be located at controllable switch module both ends, through doorbell transformer
The 8-24V low-voltage ACs of output are input to rectification module, and rectified module is rectified into direct current electricity output.
Voltage reduction module, the 8-24V voltage dcs decompression that electrical connection rectification module exports rectification module are suitable doorbell
The voltage of control module work（Usually 1.2-2.5V）Output.Voltage reduction module can be BUCK reduction voltage circuits, or band
There are the BOOST-BUCK step-up/step-down circuits of buck functionality.
Current limliting module is electrically connected the output end and energy-storage module of voltage reduction module, for the charging current of energy-storage module into
Row limitation, prevents excessive charging current from being impacted to front stage circuits.Specifically, current limliting module can be according to practical application
Situation selection with the current-limiting resistance suitably prevented.
Energy-storage module includes the farad capacitor for storing electric energy.Energy-storage module is electrically connected current limliting module and boost module.
Using farad capacitor as energy-storage travelling wave tube, by the power storage exported through current limliting module in farad capacitor, and in doorbell control
It will be provided for it after the boosted module boosting of the electric energy stored in farad capacitor when molding block is power free reliable in short-term
Working power.Existing farad capacitor is generally low-voltage capacitance（2.7V）, sufficiently high in order to be provided for doorbell control module
Operating voltage.In the energy-storage module of the present embodiment, the farad capacitor for energy storage samples mode as shown in Figure 7 and connects.This
Kind energy storage mode（Energy storage mode in parallel）A farad capacitor can be used only, or the same farad of multiple performance parameters is electric
Hold used in parallel.
Boost module is electrically connected energy-storage units and doorbell control module.It is a kind of with respect to embodiment using energy storage mode in parallel
Described is used in series mode, and circuit design is simple and need not use additional voltage equalizing protection unit.But energy storage in parallel
The output voltage of mode is relatively low, needs to export to doorbell control module as power supply after boosted module boosting.Boost module
Can be BOOST booster circuits, or carry the BOOST-BUCK step-up/step-down circuits of boost function.
The course of work of electronic door bell based on the present embodiment is as follows：
When not triggered by user mounted on outdoor outdoor controller, controllable switch module is off.Doorbell
The secondary coil circuit of transformer disconnects at controllable switch module, and sound production doorbell is not powered, and will not make a sound.Doorbell becomes
It is 8-24V direct currents that the 8-24V alternating voltages of the secondary coil output of depressor, which are exported through controllable switch module to rectification module rectification,
Electricity, then exported to doorbell control module through voltage reduction module and current limliting module through a step and provide working power for it.On the other hand, whole
Flow module exports 8-24V direct currents, is exported to accumulator by voltage reduction module and current limliting module, to the farad electricity of energy-storage module
Capacity charge.In energy-storage module charging process, current limliting module limits its charging current, to prevent excessive charging current from damaging
Bad front stage circuits.
When user's triggering is mounted on outdoor outdoor controller（For example, outdoor bell button is pressed）When, doorbell control
Molding block detects that the signal for the outdoor controller being triggered, control controllable switch module are closed.The secondary wire of doorbell transformer
Enclose circuit conducting, sound production doorbell energization sounding.Since controllable switch module is closed, the output end of rectification module is short-circuited.Doorbell
The 8-24V alternating voltages of the secondary coil output of transformer it can not provide working power for doorbell control module.At this point, energy storage
Module provides output after the boosted module boosting of the electric energy being stored in its farad capacitor to work to doorbell control module for it
Make power supply, to ensure the normal work of doorbell control module.
In order to improve the compatibility to sound production doorbell, controllable switch module is preferably with two-way controllable switch.
For most of electronic small bells, after doorbell control module detects the signal for the outdoor controller being triggered, control
The process of electronic small bell sounding processed is：
First, doorbell control module controls two-way controllable switch one-way conduction, and doorbell transformer provides half for electronic small bell
Wave power supply so that electronic small bell is in can be with the state of sounding；
Secondly, doorbell control module controls two-way controllable switch bidirectional conduction for a period of time, and doorbell transformer is electronic bell
Pan provides of short duration full wave power supply so that the operation of its sounding is triggered after electronic small bell detects full wave power supply, electronic small bell
Start sounding；
Finally, doorbell control module controls two-way controllable switch and returns to one-way conduction state, and doorbell transformer is electronic bell
Pan provides half wave power supply so that electronic small bell can continue sounding and terminate to one section of music.
For Machinery door bell and small part electronic small bell, doorbell control module is detected in doorbell control module and is triggered
Outdoor controller signal, control two-way controllable switch and be closed（One-way conduction or bidirectional conduction）, can make sounding door
Bell energization sounding.
Although being described in conjunction with the accompanying the embodiment of the utility model, those of ordinary skill in the art can be in institute
Various deformations or amendments are made in attached the scope of the claims.
Claims (10)
1. a kind of doorbell control system power supply circuit, which is characterized in that including：
Controllable switch module is connected on sound production doorbell between the both ends of the secondary coil of doorbell transformer；
Rectification module is electrically connected the both ends of the controllable switch module, and the alternating current for exporting the doorbell transformer is whole
Flow into direct current electricity output；
Energy-storage module includes the farad capacitor for storing electric energy；
The energy-storage module is electrically connected to the rectification module, and when the controllable switch module is disconnected by the rectification mould
In the power storage to the farad capacitor of block output；
The energy-storage module is electrically connected to doorbell control module, and will be stored in when the controllable switch module is closed described
Electric energy in farad capacitor is exported to the doorbell control module.
2. a kind of doorbell control system power supply circuit according to claim 1, it is characterised in that：The farad capacitor is at least
There are two, and be connected in the energy-storage module；The energy-storage module further includes the pressure for being electrically connected each farad capacitor
Unit, the pressure unit electricity make the voltage at each farad capacitor both ends be consistent.
3. a kind of doorbell control system power supply circuit according to claim 1, it is characterised in that：It further include boost module；
The energy-storage module is electrically connected to the doorbell control module through the boost module.
4. a kind of doorbell control system power supply circuit according to claim 3, it is characterised in that：The farad capacitor is at least
There are two, and be connected in parallel in the energy-storage module.
5. a kind of doorbell control system power supply circuit according to Claims 2 or 3 or 4, it is characterised in that：It further include decompression
Module, the energy-storage module are electrically connected to the rectification module through the voltage reduction module.
6. a kind of doorbell control system power supply circuit according to claim 5, it is characterised in that：Further include current limliting module,
The energy-storage module is electrically connected to the rectification module through the voltage reduction module and the current limliting module.
7. a kind of doorbell control system power supply circuit according to claim 1, it is characterised in that：The sound production doorbell is machine
Tool doorbell.
8. a kind of doorbell control system power supply circuit according to claim 1, it is characterised in that：The sound production doorbell is electricity
Cervical orifice of uterus bell.
9. a kind of doorbell control system power supply circuit according to claim 8, it is characterised in that：The controllable switch module
For two-way controllable switch.
10. a kind of electronic door bell, including outdoor controller, doorbell control system, sound production doorbell, doorbell transformer, feature exist
In：The doorbell control system includes the doorbell power supply circuit as described in claims 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9；
The doorbell control module is electrically connected the control terminal of the controllable switch module and the outdoor controller, according to the outdoor control
The signal of device processed controls the controllable switch module closure/disconnection.
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| CN201820014800.2U CN207677492U (en) | 2018-01-05 | 2018-01-05 | A kind of doorbell control system power supply circuit and electronic door bell |
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| CN201820014800.2U CN207677492U (en) | 2018-01-05 | 2018-01-05 | A kind of doorbell control system power supply circuit and electronic door bell |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110264650A (en) * | 2019-07-02 | 2019-09-20 | 厦门兴联集团有限公司 | A kind of remodeling method of the compatible tradition machinery doorbell system of intelligent doorbell outdoor unit |
| CN111968321A (en) * | 2020-10-20 | 2020-11-20 | 杭州觅睿科技有限公司 | Doorbell system |
| CN112954277A (en) * | 2021-03-05 | 2021-06-11 | 杭州海康威视数字技术股份有限公司 | Doorbell camera |
-
2018
- 2018-01-05 CN CN201820014800.2U patent/CN207677492U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110264650A (en) * | 2019-07-02 | 2019-09-20 | 厦门兴联集团有限公司 | A kind of remodeling method of the compatible tradition machinery doorbell system of intelligent doorbell outdoor unit |
| CN111968321A (en) * | 2020-10-20 | 2020-11-20 | 杭州觅睿科技有限公司 | Doorbell system |
| WO2022083050A1 (en) * | 2020-10-20 | 2022-04-28 | 杭州觅睿科技股份有限公司 | Doorbell system |
| CN112954277A (en) * | 2021-03-05 | 2021-06-11 | 杭州海康威视数字技术股份有限公司 | Doorbell camera |
| WO2022183859A1 (en) * | 2021-03-05 | 2022-09-09 | 杭州海康威视数字技术股份有限公司 | Doorbell camera |
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