CN203261122U - Uninterruptible power circuit of power box of visual building intercom system - Google Patents
Uninterruptible power circuit of power box of visual building intercom system Download PDFInfo
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- CN203261122U CN203261122U CN 201320321324 CN201320321324U CN203261122U CN 203261122 U CN203261122 U CN 203261122U CN 201320321324 CN201320321324 CN 201320321324 CN 201320321324 U CN201320321324 U CN 201320321324U CN 203261122 U CN203261122 U CN 203261122U
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- power supply
- diode
- storage battery
- power
- visual building
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Abstract
The utility model discloses an uninterruptible power circuit of a power box of a visual building intercom system. The circuit comprises a first diode, a second diode, a first resistor, a second resistor, a triode, a relay, a contact switch and a self-recovery protective tube. The first diode and the first resistor which are in parallel connection are in series connection with the second resistor and the triode; the second diode and the relay are in parallel connection; and the contact switch and the self-recovery protective tube which are in series connection are electrically connected with the relay. Based on the above technical scheme of the utility model, the uninterruptible power circuit of the power box of the visual building intercom system realizes the uninterruptible power supply of the intercom power supply circuit module and realizes the constant voltage floating charge of the storage battery in the normal power supply, so that the storage battery is not over charged and automatically supplies power during the power failure, and the storage battery automatically cuts off the power when the storage battery voltage is too low so as to ensure that the storage battery is not over discharged. The function of supplying the power automatically during the power failure is realized, and the stability of the visual building intercom system is guaranteed.
Description
Technical field
The utility model relates to the field of visual building conversation system, particularly relates to a kind of uninterrupted power supply circuit of visual building conversation system power supply box.
Background technology
Along with the raising of people life level, the building conversational system of residential quarter is also upgraded to video intercom by original non-visible dialogue system.In order to guarantee the job stability of building talkback, very high requirement has been proposed the power supply in the building conversational system.
At present, the power supply stability of building conversational system is poor, if run into the situation that power failure can affect the work of building conversational system simultaneously, the working stability performance is poor.
Summary of the invention
The technical problem that the utility model mainly solves provides a kind of uninterrupted power supply circuit of visual building conversation system power supply box, has solved the poor problem of power supply stability of building conversational system in the above-mentioned prior art.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: the uninterrupted power supply circuit that a kind of visual building conversation system power supply box is provided, comprise the first diode, the second diode, the first resistance, the second resistance, triode, relay, contact switch and certainly recover protective tube, described the first diode be connected in series with the second resistance and triode after described the first resistance is in parallel, described the second diode and described relay are connected in parallel, described contact switch and describedly be electrically connected with described relay after recovering protective tube and being connected in series.
In preferred embodiment of the utility model, described uninterrupted power supply circuit also includes storage battery, described storage battery and describedly be connected in series from recovering protective tube.
In preferred embodiment of the utility model, the operating voltage of described storage battery is 12V.
In preferred embodiment of the utility model, described the first diode and the second diode are voltage stabilizing didoe.
In preferred embodiment of the utility model, the voltage of described uninterrupted power supply circuit input is 13.4V.
In preferred embodiment of the utility model, the resistance value of described the first resistance and the second resistance equates.
The beneficial effects of the utility model are: the uninterrupted power supply circuit of visual building conversation system power supply box of the present utility model, realize the uninterrupted power supply of intercommunication power circuit module, circuit is to the storage battery constant voltage floating charge during normal power supply, guarantee that storage battery does not overcharge, power failure automatic power, battery voltage are crossed low auto-breaking, keep not overdischarge of storage battery, function with power failure automatic power has guaranteed the stability of visual building conversation system.
Description of drawings
Fig. 1 is the circuit diagram of uninterrupted power supply circuit one preferred embodiment of the utility model visual building conversation system power supply box;
Being labeled as in the accompanying drawing: ZD1, the first diode, ZD2, the second diode, R1, the first resistance, R2, the second resistance, Q, triode, K, relay, S, contact switch, PTC are from recovering protective tube, P, storage battery.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present utility model is described in detail, thereby so that advantage of the present utility model and feature can be easier to be it will be appreciated by those skilled in the art that protection range of the present utility model is made more explicit defining.
See also Fig. 1, the utility model provides a kind of uninterrupted power supply circuit of visual building conversation system power supply box, comprise the first diode ZD1, the second diode ZD2, the first resistance R 1, the second resistance R 2, triode Q, relay K, contact switch S and certainly recover protective tube PTC, described the first diode ZD1 be connected in series with the second resistance R 2 and triode Q after described the first resistance R 1 is in parallel, described the second diode ZD2 and described relay K are connected in parallel, described contact switch S and describedly be electrically connected with described relay K after recovering protective tube PTC and being connected in series.
Further, described uninterrupted power supply circuit also includes storage battery P, described storage battery P and describedly be connected in series from recovering protective tube PTC.Wherein, the operating voltage of described storage battery is 12V.
Described the first diode ZD1 and the second diode ZD2 are voltage stabilizing didoe.Like this, after the voltage stabilizing didoe place in circuit, if because supply voltage fluctuates, or other reason is when causing in the circuit each point variation in voltage, the voltage at load two ends will remain unchanged substantially.
The voltage of uninterrupted power supply circuit input is 13.4V in the utility model.
The first diode ZD1, the first resistance R 1, the second resistance R 2, triode Q and relay K form the battery voltage testing circuit, through connecting terminal switch S after the relay K with after certainly recovering protective tube PTC current limliting, give 12V storage battery P charging to 13.4V voltage.When having a power failure, storage battery P is connected the contact point switch S and powers to the visual building conversation system power supply box by certainly recovering protective tube PTC with relay K.
The first diode ZD1, the first resistance R 1, the second resistance R 2, triode Q and relay K form the battery voltage testing circuit; when storage battery P voltage is normal; triode Q conducting; relay K connecting terminal switch S; storage battery P brownout, triode Q cut-off, relay K discharges with contact switch S and disconnects; the storage battery P cut-off of discharging, not overdischarge of protection storage battery P.
The uninterrupted power supply circuit of visual building conversation system power supply box of the present utility model, realize the uninterrupted power supply of intercommunication power circuit module, circuit is to storage battery P constant voltage floating charge during normal power supply, guarantee that storage battery P does not overcharge, the power failure automatic power, storage battery P brownout auto-breaking keeps not overdischarge of storage battery P, function with power failure automatic power has guaranteed the stability of visual building conversation system.
The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (6)
1. the uninterrupted power supply circuit of a visual building conversation system power supply box, it is characterized in that, comprise the first diode, the second diode, the first resistance, the second resistance, triode, relay, contact switch and certainly recover protective tube, described the first diode be connected in series with the second resistance and triode after described the first resistance is in parallel, described the second diode and described relay are connected in parallel, described contact switch and describedly be electrically connected with described relay after recovering protective tube and being connected in series.
2. the uninterrupted power supply circuit of visual building conversation system power supply box according to claim 1 is characterized in that, described uninterrupted power supply circuit also includes storage battery, described storage battery and describedly be connected in series from recovering protective tube.
3. the uninterrupted power supply circuit of visual building conversation system power supply box according to claim 2 is characterized in that, the operating voltage of described storage battery is 12V.
4. the uninterrupted power supply circuit of visual building conversation system power supply box according to claim 1 is characterized in that, described the first diode and the second diode are voltage stabilizing didoe.
5. the uninterrupted power supply circuit of visual building conversation system power supply box according to claim 1 is characterized in that, the voltage of described uninterrupted power supply circuit input is 13.4V.
6. the uninterrupted power supply circuit of visual building conversation system power supply box according to claim 1 is characterized in that, the resistance value of described the first resistance and the second resistance equates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320321324 CN203261122U (en) | 2013-06-05 | 2013-06-05 | Uninterruptible power circuit of power box of visual building intercom system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320321324 CN203261122U (en) | 2013-06-05 | 2013-06-05 | Uninterruptible power circuit of power box of visual building intercom system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203261122U true CN203261122U (en) | 2013-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320321324 Expired - Fee Related CN203261122U (en) | 2013-06-05 | 2013-06-05 | Uninterruptible power circuit of power box of visual building intercom system |
Country Status (1)
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| CN (1) | CN203261122U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104158283A (en) * | 2014-08-01 | 2014-11-19 | 科立讯通信股份有限公司 | Circuit and method for realizing smooth switching of main stand-by power source of communication equipment |
| CN108418300A (en) * | 2018-05-09 | 2018-08-17 | 广州大学 | A kind of standby usage battery powered automatic switchover output circuit |
-
2013
- 2013-06-05 CN CN 201320321324 patent/CN203261122U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104158283A (en) * | 2014-08-01 | 2014-11-19 | 科立讯通信股份有限公司 | Circuit and method for realizing smooth switching of main stand-by power source of communication equipment |
| CN104158283B (en) * | 2014-08-01 | 2017-05-17 | 科立讯通信股份有限公司 | Circuit and method for realizing smooth switching of main stand-by power source of communication equipment |
| CN108418300A (en) * | 2018-05-09 | 2018-08-17 | 广州大学 | A kind of standby usage battery powered automatic switchover output circuit |
| CN108418300B (en) * | 2018-05-09 | 2023-08-08 | 广州大学 | Main and standby battery power supply automatic switching output circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20180605 |
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| CF01 | Termination of patent right due to non-payment of annual fee |