CN204681153U - A kind of uninterrupted power supply device - Google Patents
A kind of uninterrupted power supply device Download PDFInfo
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- CN204681153U CN204681153U CN201420850042.XU CN201420850042U CN204681153U CN 204681153 U CN204681153 U CN 204681153U CN 201420850042 U CN201420850042 U CN 201420850042U CN 204681153 U CN204681153 U CN 204681153U
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- main battery
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- switching tube
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Abstract
The utility model discloses a kind of uninterrupted power supply device, for carrying out uninterrupted power supply to law-enforcing recorder, comprise main battery module, reserve battery module and handover module, main battery module is connected with the power input of law-enforcing recorder, and reserve battery module is connected with described power input by handover module; Main battery module comprises removable main battery, and reserve battery module comprises reserve battery, and handover module comprises detection port and switching tube, and whether detection port is pulled out to detect main battery for the target connecting main battery; When main battery is in recorder power supply process, the testing result of detection port makes switching tube be in cut-off state to connect to prevent reserve battery and described power input; When main battery is pulled out, the testing result of detection port makes switching tube conducting be connected to make reserve battery by the power input of switching tube and recorder and be powered to recorder.
Description
Technical field
The utility model relates to the uninterrupted power supply technology of law-enforcing recorder, particularly relates to a kind of uninterrupted power supply device for law-enforcing recorder.
Background technology
The current main flow of single alert law-enforcing recorder is volume miniaturization, function i ntegration, weight lightness.But, when meeting above condition, the capacity of battery can be limited, cause law enfrocement official can meet with the situation of battery electric quantity deficiency in the process of executing the task, now then need to change battery, but changing battery can cause recorder quit work and shut down, but some field requirement uninterruptedly takes evidence obtaining, change battery and certainly will affect the requirement of law enforcement continuous surveillance, may cause leaking and clap important evidence picture.
Summary of the invention
Main purpose of the present utility model is to propose a kind of uninterrupted power supply device, reserve battery can be automatically switched to when main battery is extracted and continue power supply, and after main battery inserts, automatically switch to main battery from reserve battery continue power supply, quit work and the shooting disruption that causes when changing battery to solve existing law-enforcing recorder.
The technical scheme that the utility model provides is as follows:
A kind of uninterrupted power supply device, for carrying out uninterrupted power supply to law-enforcing recorder, comprise main battery module, reserve battery module and handover module, described main battery module is connected with the power input of described law-enforcing recorder, and described reserve battery module is connected with the power input of described law-enforcing recorder by described handover module; Described main battery module comprises removable main battery and the first electric capacity, and described first electric capacity one end connects the positive pole of described main battery, and other end ground connection, for accumulation of energy; Described reserve battery module comprises reserve battery and the second electric capacity, and described second electric capacity one end connects the positive pole of described reserve battery, and other end ground connection, for accumulation of energy; Described handover module comprises detection port and switching tube, described detection port is connected with the target of described main battery, for exporting the control end of high level to described switching tube when described main battery normal power supply to control the cut-off of described switching tube, also for the output low level when described main battery power-off to the control end of described switching tube to control described switching tube conducting.In the uninterrupted power supply device that this programme provides, detection port can detect main battery in real time and whether be in normal power supply state: detection port be connected with the target of main battery, target is the temperature detection port of battery, battery have electricity then this port be high level, dead battery capability then this port is low level, therefore, main battery be present in battery case give recorder normal power supply time, detection port place is high level, this high level signal can make switching tube end, switching tube ends, and reserve battery cannot be connected with described power input, namely reserve battery can not be powered to recorder, once main battery electricity exhausts or is pulled out, then detection port place is low level, and this low level signal can make switching tube conducting, thus reserve battery is connected by the switching tube of conducting and law-enforcing recorder power input and powered.Simultaneously, main battery in power-off (be pulled out or electricity exhausts) instantaneously, in first electric capacity, institute's charge capacity can supply recorder and quits work to prevent recorder power down, makes main battery power-off and reserve battery access realize slitless connection, thus realizes uninterrupted power supply.When the main battery loading onto electricity, detection port just detects high level immediately, make switching tube come back to cut-off state, stop reserve battery to the power supply of law-enforcing recorder, now the second electric capacity plays access main battery and disconnects slitless connection between reserve battery.Pass through such scheme, make main battery and reserve battery select one to power to law-enforcing recorder, and without the need to artificial selection, but detected in real time by detection port, and realize automatically switching to reserve battery by switching tube, coordinate the electric capacity of electric power storage to realize switching power supply without time gap, prevent recorder instant power-down, simple to operate, and owing to only needing one group of reserve battery to realize powering between the short-term changing main battery, therefore this device can not take too many space.
Preferably, also comprise the charging circuit be connected between described main battery and described reserve battery, described charging circuit comprises diode, and the anode of described diode is connected to described main battery, and negative electrode is coupled to described reserve battery.During main battery carries out powering, because diode is conducting, main battery can also realize charging to reserve battery, so, reserve battery is almost without the need to changing, exactly because also have employed the diode of one-way conduction, during main battery is pulled out and reserve battery carries out powering, the electricity of reserve battery can not pour in down a chimney to main battery module.
Preferably, described charging circuit also comprises the current-limiting resistance between negative electrode and described reserve battery being connected to described diode.
Preferably, described diode is Schottky diode.
Preferably, described main battery module also comprises the first PMOS, and the drain electrode of described first PMOS is connected with described main battery, and grid is by one first grounding through resistance, and source electrode is connected with the power input of described law-enforcing recorder.Power period at main battery, the first PMOS is conducting state always, once main battery is pulled out, the first PMOS just can be ended, and can prevent electricity from pouring in down a chimney to main battery module from the power input of law-enforcing recorder.
Preferably, the described switching tube of described handover module is the second PMOS, the control end of described switching tube is the grid of described second PMOS, the grid of described second PMOS is connected with described detection port by one second resistance, source electrode is connected to the power input of described law-enforcing recorder, and drain electrode is coupled to described reserve battery.
Preferably, described handover module also comprises the 3rd PMOS, the source electrode of described 3rd PMOS is connected to the drain electrode of described second PMOS, and grid is by being also connected to the grid of described second PMOS while one the 3rd grounding through resistance, drain electrode is connected to described reserve battery.
Preferably, also comprise reminding module, for described main battery electricity lower than 5% time prompting user change described main battery.
Preferably, the size of described reserve battery and capacity are less than described main battery.Generally speaking, changing main battery can complete within very short time, and that is, the duration not needing reserve battery at every turn to power is very long, and in order to volume is miniaturized, the size of reserve battery and capacity can arrange relatively little.
Accompanying drawing explanation
Fig. 1 is the theory diagram of a kind of uninterrupted power supply device that the utility model embodiment provides;
Fig. 2 is the concrete implementing circuit figure of one of the uninterrupted power supply device shown in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment the utility model is described in further detail.
The utility model embodiment provides a kind of uninterrupted power supply device (hereinafter referred to as device) as depicted in figs. 1 and 2, may be used for the electronic equipment needing continued power work, such as law-enforcing recorder etc.This embodiment for single alert law-enforcing recorder (hereinafter referred to as recorder) for example is described the technical solution of the utility model.
As shown in Figure 1, described device comprises main battery module 100, reserve battery module 200 and handover module 300, main battery module 100 is connected with the power input BAT+ of described recorder, and reserve battery module 200 is connected with the power input BAT+ of described recorder by handover module 300, as shown in Figure 2, main battery module 100 comprises removable main battery BT1 and the first electric capacity C1, wherein first electric capacity C1 one end connects the positive pole of main battery BT1, other end ground connection, for accumulation of energy, prevent from accessing in this section extremely short period in main battery BT1 power-off (such as: electricity exhausts or is pulled out) to reserve battery BT2, the power input BAT+ power down of recorder and make recorder stop shooting, reserve battery module 200 comprises reserve battery BT2 and the second electric capacity C2, and wherein second electric capacity C2 one end connects the positive pole of reserve battery BT2, and other end ground connection, for accumulation of energy, handover module 300 comprises detection port Check_BT and switching tube, (target is the temperature detection port of battery to the target of described detection port Check_BT and main battery BT1, battery have electricity then this port be high level, dead battery capability then this port is low level) connect, for exporting the control end of high level to described switching tube when main battery BT1 normal power supply (be namely positioned at battery case and have electricity) to control the cut-off of described switching tube, also for the output low level when main battery BT1 power-off (namely electricity exhausts or is pulled out) to the control end of described switching tube to control described switching tube conducting.
Particularly, as shown in Figure 2, the described switching tube in commutation circuit 300 is that the grid of the metal-oxide-semiconductor Q2 of P raceway groove, metal-oxide-semiconductor Q2 is connected with detection port Check_BT by resistance R2, source electrode is connected to the power input BAT+ of described recorder, and drain electrode is coupled to reserve battery BT2.In device use procedure, powered to recorder by main battery BT1 under normal circumstances, main battery BT1 is in power supply process, namely show that the target of detection port Check_BT and main battery BT1 is connected, now detection port Check_BT and high level, and the source electrode of metal-oxide-semiconductor Q2 is owing to being connected to the power input BAT+ of recorder, in such cases, do not have voltage difference between the grid of metal-oxide-semiconductor Q2 and source electrode, namely metal-oxide-semiconductor Q2 is in cut-off state.When main battery BT1 is pulled out, then detection port Check_BT is unsettled, forms a low level over the ground, makes coating-forming voltage between the grid of metal-oxide-semiconductor Q2 and source electrode poor, thus metal-oxide-semiconductor Q2 conducting, namely reserve battery BT2 powers to described recorder by described power input BAT+.
In some embodiments, commutation circuit 300 also comprises the metal-oxide-semiconductor Q3 of a P raceway groove, as shown in Figure 2, be connected between metal-oxide-semiconductor Q2 and reserve battery BT2, the concrete connected mode of its grid, source electrode and drain electrode is: source electrode is connected to the drain electrode of metal-oxide-semiconductor Q2, grid is by resistance R3 ground connection, the grid being also connected to metal-oxide-semiconductor Q2 simultaneously, and drain electrode is connected to reserve battery BT2.Once metal-oxide-semiconductor Q2 conducting, then metal-oxide-semiconductor Q3 also conducting immediately thereupon, reserve battery BT2 can not be affected power to recorder, and at main battery BT1 in recorder power supply process, the cut-off of metal-oxide-semiconductor Q2 can also prevent electricity from pouring in down a chimney to reserve battery BT2 from described power input BAT+, and metal-oxide-semiconductor Q3 plays double protection effect to described pouring in down a chimney in the process.
As shown in Figure 2, also the metal-oxide-semiconductor Q1 of a P raceway groove is comprised in main battery module 100, its grid, source electrode with the concrete connection of drain electrode are: drain electrode is connected with main battery BT1, and grid is by resistance R1 ground connection, and source electrode is connected with the power input BAT+ of described recorder.After main battery BT1 is pulled out, metal-oxide-semiconductor Q1 ends, and prevents electricity from pouring in down a chimney from described power input BAT+ toward main battery place.As device main battery BT1 again, then metal-oxide-semiconductor Q1 can conducting again.
Because the time changing battery generally can not be oversize, in order to miniaturization of the apparatus, reserve battery BT2 can be small size, low capacity, and a secondary reserve battery.
In a kind of preferred embodiment, this device also has the function that main battery charges to reserve battery, as depicted in figs. 1 and 2, is provided with charging circuit 400, be connected between main battery BT1 and reserve battery BT2, particularly, charging circuit 400 comprises a diode, is preferably Schottky diode D, also be provided with a current-limiting resistance R simultaneously, the anode of diode D connects main battery BT1, negative electrode contact resistance R, and the resistance R other end is connected to reserve battery BT2.When in the process that main battery BT1 powers to recorder, diode D is conducting, and now main battery BT1 charges to reserve battery BT2, because the capacity of main battery BT1 is comparatively large, prevents larger current disrupts diode D, is provided with current-limiting resistance R.Also just because of the unidirectional general character of diode D, the electricity of reserve battery BT2 can not pour in down a chimney to main battery BT1.
In a preferred embodiment, this device also comprises reminding module (not shown), for changing main battery at main battery BT1 electricity lower than pointing out user time 5% (or lower than 10%), such as: by auditory tone cues, dodge red light etc.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of ordinary skill in the field; without departing from the concept of the premise utility; some equivalent to substitute or obvious modification can also be made, and performance or purposes identical, all should be considered as belonging to protection range of the present utility model.
Claims (9)
1. a uninterrupted power supply device, for carrying out uninterrupted power supply to law-enforcing recorder, is characterized in that:
Comprise main battery module, reserve battery module and handover module, described main battery module is connected with the power input of described law-enforcing recorder, and described reserve battery module is connected with the power input of described law-enforcing recorder by described handover module;
Described main battery module comprises removable main battery and the first electric capacity, and described first electric capacity one end connects the positive pole of described main battery, and other end ground connection, for accumulation of energy; Described reserve battery module comprises reserve battery and the second electric capacity, and described second electric capacity one end connects the positive pole of described reserve battery, and other end ground connection, for accumulation of energy; Described handover module comprises detection port and switching tube, described detection port is connected with the target of described main battery, for exporting the control end of high level to described switching tube when described main battery normal power supply to control the cut-off of described switching tube, also for the output low level when described main battery power-off to the control end of described switching tube to control described switching tube conducting.
2. device as claimed in claim 1, it is characterized in that: also comprise the charging circuit be connected between described main battery and described reserve battery, described charging circuit comprises diode, and the anode of described diode is connected to described main battery, and negative electrode is coupled to described reserve battery.
3. device as claimed in claim 2, is characterized in that: described charging circuit also comprises the current-limiting resistance between negative electrode and described reserve battery being connected to described diode.
4. device as claimed in claim 3, is characterized in that: described diode is Schottky diode.
5. device as claimed in claim 1, it is characterized in that: described main battery module also comprises the first PMOS, the drain electrode of described first PMOS is connected with described main battery, and grid is by one first grounding through resistance, and source electrode is connected with the power input of described law-enforcing recorder.
6. device as claimed in claim 1, it is characterized in that: the described switching tube of described handover module is the second PMOS, the control end of described switching tube is the grid of described second PMOS, the grid of described second PMOS is connected with described detection port by one second resistance, source electrode is connected to the power input of described law-enforcing recorder, and drain electrode is coupled to described reserve battery.
7. device as claimed in claim 6, it is characterized in that: described handover module also comprises the 3rd PMOS, the source electrode of described 3rd PMOS is connected to the drain electrode of described second PMOS, grid is by being also connected to the grid of described second PMOS while one the 3rd grounding through resistance, drain electrode is connected to described reserve battery.
8. the device as described in any one of claim 1 to 7, is characterized in that: also comprise reminding module, for described main battery electricity lower than 5% time prompting user change described main battery.
9. the device as described in any one of claim 1 to 7, is characterized in that: the size of described reserve battery and capacity are less than described main battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420850042.XU CN204681153U (en) | 2014-12-26 | 2014-12-26 | A kind of uninterrupted power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420850042.XU CN204681153U (en) | 2014-12-26 | 2014-12-26 | A kind of uninterrupted power supply device |
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| CN204681153U true CN204681153U (en) | 2015-09-30 |
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| CN201420850042.XU Active CN204681153U (en) | 2014-12-26 | 2014-12-26 | A kind of uninterrupted power supply device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467169A (en) * | 2014-12-26 | 2015-03-25 | 深圳警翼数码科技有限公司 | Uninterruptible power supply device |
| CN107612125A (en) * | 2017-10-26 | 2018-01-19 | 歌尔科技有限公司 | Power-supplying circuit and method |
-
2014
- 2014-12-26 CN CN201420850042.XU patent/CN204681153U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467169A (en) * | 2014-12-26 | 2015-03-25 | 深圳警翼数码科技有限公司 | Uninterruptible power supply device |
| CN107612125A (en) * | 2017-10-26 | 2018-01-19 | 歌尔科技有限公司 | Power-supplying circuit and method |
| CN107612125B (en) * | 2017-10-26 | 2024-04-02 | 歌尔科技有限公司 | Power supply control circuit and method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Binhai Road Nanshan District Guangdong street of Shenzhen city in Guangdong province 518000 software industry base in Shenzhen, 5 E block 1102 Patentee after: Shenzhen police wing smart Polytron Technologies Inc Address before: 518000 Nanshan District science and Technology Park, Guangdong, Shenzhen, Tsinghua University, Shenzhen, B401 Patentee before: Shenzhen Jingyi Digital Technology Co., Ltd. |