CN204349551U - A kind of battery discharging instrument - Google Patents
A kind of battery discharging instrument Download PDFInfo
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- CN204349551U CN204349551U CN201520091607.5U CN201520091607U CN204349551U CN 204349551 U CN204349551 U CN 204349551U CN 201520091607 U CN201520091607 U CN 201520091607U CN 204349551 U CN204349551 U CN 204349551U
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Abstract
The utility model relates to a kind of battery discharging instrument, and it comprises single-chip microcomputer and the current transformer that is connected in parallel between battery pack positive and negative electrode and voltage transformer; Two PTC thermistor at least in parallel on the branch road of current transformer, the secondary branch road at each PTC thermistor place is all connected with thermistor metal-oxide-semiconductor, and the drive end of each thermistor metal-oxide-semiconductor is all electrically connected to described single-chip microcomputer; Discharge instrument also comprises the transformer be connected between battery pack positive and negative electrode, the primary circuit of transformer is connected with transformer metal-oxide-semiconductor, the secondary circuit of current transformer is connected with PWM unit, and the secondary circuit of transformer is connected with radiator fan.The utility model utilizes foolproof circuit structure namely to achieve the constant-current discharge of storage battery, there is not naked light and high temperature risk, the high and whole circuit structure failure rate is low of coefficient of safety, stable performance, and it is convenient to realize.
Description
Technical field
The utility model relates to a kind of battery discharging instrument.
Background technology
The occasion such as power plant, switchgear house must configure backup battery as power supply in emergency circumstances, and to supply the visual plant such as closing operation, emergency lighting, such battery is in floating charge state for a long time, is difficult to find the degradation phenomenas such as battery capacity minimizing.For when ensureing that emergency occurs, battery can normally use, country also specify each applying unit and wants, regularly to the electric discharge of the reserve battery property checked, to need to use special battery discharging instrument.
The battery discharging instrument that Most current occasion uses, many uses electrothermal tube or PTC are as load, the control mode adopted is serial or parallel connection wave chopping technology, in use often there are the following problems for the product of the type: 1) use the discharge instrument electrothermal tube of electrothermal tube to there is red heat phenomenon, have naked light to exist, coefficient of safety is not high enough; 2) chopper circuit of conventional PTC discharge instrument use, because switching tube is in switching loss state, therefore failure rate is high; Noise is there is in chopping process, and the electronic equipment near interference.
Utility model content
The technical problems to be solved in the utility model is to provide the battery discharging instrument that a kind of structure is simple, control convenience, stable performance.
For solving the problems of the technologies described above, battery discharging instrument of the present utility model comprises single-chip microcomputer, and its design feature is that this discharge instrument also comprises and is connected in parallel on current transformer between battery pack positive and negative electrode and voltage transformer; The secondary circuit of current transformer and voltage transformer is all connected to described single-chip microcomputer, two PTC thermistor at least in parallel on the branch road of current transformer, the secondary branch road at each PTC thermistor place is all connected with the thermistor metal-oxide-semiconductor for controlling this secondary branch road break-make, the drive end of each thermistor metal-oxide-semiconductor is all electrically connected to described single-chip microcomputer; Described discharge instrument also comprises the transformer be connected between battery pack positive and negative electrode, the primary circuit of transformer is connected with battery pack and this primary circuit is connected with the transformer metal-oxide-semiconductor for controlling its break-make, the secondary circuit of current transformer being connected with the PWM unit for driving above-mentioned transformer metal-oxide-semiconductor, the secondary circuit of transformer being connected with the radiator fan for lowering the temperature to PTC thermistor.
Described radiator fan comprises in parallel multiple, and radiator fan and both one_to_one corresponding equal with the quantity of PTC thermistor are arranged.
The secondary circuit of described transformer is connected with fast recovery rectifier diode.
The secondary circuit of described transformer is connected with filter capacitor.
Described single-chip microcomputer is connected with communication interface unit.
Described single-chip microcomputer is connected with keyboard display unit.
The beneficial effects of the utility model are: the positive temperature characterisitic utilizing PTC thermistor, be equipped with single-chip microcomputer and carried out the collection of electric current and voltage signal by current transformer and voltage transformer respectively, one group of radiator fan is driven according to electric current and voltage signal, wind-force blows to the PTC thermistor that front is installed, when microprocessor detect exceedes default electric current to discharging current, drive fan wind speed slows down, and impels the rising of PTC self-temperature, resistance increase, and then impels overall current to reduce; Otherwise wind speed improves, impel PTC self-temperature to reduce thus the resistance reduction of PTC own, and then impel electric current to increase, so repeatedly adjust, thus realize the object of constant-current discharge.Visible, the utility model utilizes foolproof circuit structure namely to achieve the constant-current discharge of storage battery, there is not naked light and high temperature risk, the high and whole circuit structure failure rate is low of coefficient of safety, stable performance, and it is convenient to realize.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Fig. 1 is circuit principle structure schematic diagram of the present utility model.
Embodiment
With reference to accompanying drawing, battery discharging instrument of the present utility model comprises single-chip microcomputer 1, and wherein, conveniently discharge instrument is connected with computer or other communication apparatus, single-chip microcomputer 1 is connected with communication interface unit 12, and communication interface can adopt the communication interfaces such as common RS232.In addition, single-chip microcomputer 1 is also connected with keyboard display unit 13.Keyboard and display screen are set in keyboard display unit, for carrying out programming Control and display information in real time to single-chip microcomputer 1, wherein, are prior art for the programming Control of single-chip microcomputer 1 and the signal input and output circuit of single-chip microcomputer 1, do not repeat them here.
With reference to accompanying drawing, battery discharging instrument of the present utility model also comprises and is connected in parallel on current transformer 2 between battery pack positive and negative electrode and voltage transformer 3.The secondary circuit of current transformer 2 and voltage transformer 3 is all connected to single-chip microcomputer 1, two PTC thermistor 4 at least in parallel on the branch road of current transformer 2, the secondary branch road at each PTC thermistor 4 place is all connected with the thermistor metal-oxide-semiconductor 5 for controlling this secondary branch road break-make, the drive end of each thermistor metal-oxide-semiconductor 5 is all electrically connected to single-chip microcomputer 1.Discharge instrument also comprises the transformer 6 be connected between battery pack positive and negative electrode, the primary circuit of transformer 6 is connected with battery pack and this primary circuit is connected with the transformer metal-oxide-semiconductor 7 for controlling its break-make, the secondary circuit of current transformer 2 being connected with the PWM unit 8 for driving above-mentioned transformer metal-oxide-semiconductor 7, the secondary circuit of transformer 6 being connected with the radiator fan 9 for lowering the temperature to PTC thermistor 4.Radiator fan 9 comprises in parallel multiple, and radiator fan 9 and both one_to_one corresponding equal with the quantity of PTC thermistor 4 are arranged, and there is shown three groups of PTC thermistor and three fans, in actual applications, organizing several discharging current according to discharge instrument increases.
With reference to accompanying drawing, the secondary circuit of transformer 6 is connected with fast recovery rectifier diode 10 and filter capacitor 11.Radiator fan 9 is DC fan, and connection fast recovery rectifier diode 10 and filter capacitor 11 can ensure that fan is stable.
With reference to accompanying drawing, discharge instrument of the present utility model utilizes the positive temperature characterisitic of PTC thermistor 4, be equipped with single-chip microcomputer 1 and carried out the collection of electric current and voltage signal by current transformer 2 and voltage transformer 3 respectively, one group of radiator fan 9 is driven according to electric current and voltage signal, wind-force blows to the PTC thermistor 4 that front is installed, when microprocessor detect exceedes default electric current to discharging current, drive fan wind speed slows down, impel the rising of PTC thermistor 4 self-temperature, resistance increase, and then impel overall current to reduce; Otherwise wind speed improves, impel PTC thermistor 4 self-temperature to reduce thus the resistance reduction of PTC thermistor 4 itself, and then impel electric current to increase, so repeatedly adjust, thus realize the object of constant-current discharge.
In sum, the utility model is not limited to above-mentioned embodiment.Those skilled in the art, under the prerequisite not departing from spirit and scope of the present utility model, can do some changes and modification.Protection range of the present utility model should be as the criterion with claim of the present utility model.
Claims (6)
1. a battery discharging instrument, comprises single-chip microcomputer (1), it is characterized in that this discharge instrument also comprises and is connected in parallel on current transformer (2) between battery pack positive and negative electrode and voltage transformer (3); The secondary circuit of current transformer (2) and voltage transformer (3) is all connected to described single-chip microcomputer (1), two PTC thermistor (4) at least in parallel on the branch road of current transformer (2), the secondary branch road at each PTC thermistor (4) place is all connected with the thermistor metal-oxide-semiconductor (5) for controlling this secondary branch road break-make, the drive end of each thermistor metal-oxide-semiconductor (5) is all electrically connected to described single-chip microcomputer (1); Described discharge instrument also comprises the transformer (6) be connected between battery pack positive and negative electrode, the primary circuit of transformer (6) is connected with battery pack and this primary circuit is connected with the transformer metal-oxide-semiconductor (7) for controlling its break-make, the secondary circuit of current transformer (2) being connected with the PWM unit (8) for driving above-mentioned transformer metal-oxide-semiconductor (7), the secondary circuit of transformer (6) being connected with the radiator fan (9) for lowering the temperature to PTC thermistor (4).
2. battery discharging instrument as claimed in claim 1, is characterized in that described radiator fan (9) comprises in parallel multiple, and radiator fan (9) and both one_to_one corresponding equal with the quantity of PTC thermistor (4) are arranged.
3. battery discharging instrument as claimed in claim 1, the secondary circuit that it is characterized in that described transformer (6) is connected with fast recovery rectifier diode (10).
4. battery discharging instrument as claimed in claim 1, the secondary circuit that it is characterized in that described transformer (6) is connected with filter capacitor (11).
5. battery discharging instrument as claimed in claim 1, is characterized in that described single-chip microcomputer (1) is connected with communication interface unit (12).
6. battery discharging instrument as claimed in claim 1, is characterized in that described single-chip microcomputer (1) is connected with keyboard display unit (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520091607.5U CN204349551U (en) | 2015-02-10 | 2015-02-10 | A kind of battery discharging instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520091607.5U CN204349551U (en) | 2015-02-10 | 2015-02-10 | A kind of battery discharging instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204349551U true CN204349551U (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520091607.5U Active CN204349551U (en) | 2015-02-10 | 2015-02-10 | A kind of battery discharging instrument |
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| Country | Link |
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| CN (1) | CN204349551U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106058335A (en) * | 2016-07-04 | 2016-10-26 | 北京嘉捷恒信能源技术有限责任公司 | Battery discharge device and battery discharge method |
| CN106992565A (en) * | 2017-04-19 | 2017-07-28 | 中国人民解放军第四三二八工厂 | A kind of Battery Constant Current Discharging Device |
-
2015
- 2015-02-10 CN CN201520091607.5U patent/CN204349551U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106058335A (en) * | 2016-07-04 | 2016-10-26 | 北京嘉捷恒信能源技术有限责任公司 | Battery discharge device and battery discharge method |
| CN106992565A (en) * | 2017-04-19 | 2017-07-28 | 中国人民解放军第四三二八工厂 | A kind of Battery Constant Current Discharging Device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Room 08, 14th Floor, Entrepreneurship Center Building, No. 4935, Fushou East Street, Yuanfei Community, Xincheng Street, High-tech Zone, Weifang City, Shandong Province, 261000 Patentee after: Shandong kena Electric Technology Co.,Ltd. Address before: West side of the first floor of the office building, No. 12869 Yuqing East Street, High-tech Zone, Weifang City, Shandong Province, 261061 Patentee before: WEIFANG KAINA ELECTRIC TECHNOLOGY Co.,Ltd. |
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| CP03 | Change of name, title or address |