CN203745617U - Large power lithium battery insulation detection circuit - Google Patents
Large power lithium battery insulation detection circuit Download PDFInfo
- Publication number
- CN203745617U CN203745617U CN201420060740.XU CN201420060740U CN203745617U CN 203745617 U CN203745617 U CN 203745617U CN 201420060740 U CN201420060740 U CN 201420060740U CN 203745617 U CN203745617 U CN 203745617U
- Authority
- CN
- China
- Prior art keywords
- lithium battery
- power lithium
- insulation
- detecting circuit
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Electronic Switches (AREA)
Abstract
The utility model is suitable for the technical field of batteries, and provides a large power lithium battery insulation detection circuit which comprises a large power lithium battery and an insulation detection module. The insulation detection circuit further comprises two controllable switches. Positive and negative electrodes of the large power lithium battery are connected with the insulation detection module respectively through a controllable switch. The insulation detection circuit of the large power lithium battery can be switched on when the insulation performance of the large power lithium battery needs to be detected, and can be switched off when insulation performance detection is not needed, thus unnecessary power loss can be avoided.
Description
Technical field
The utility model belongs to battery technology field, relates in particular to a kind of insulation detecting circuit of large-sized power lithium battery.
Background technology
Electric automobile is because its power source is reproducible green energy resource electric energy, and enters into gradually people's life, and therefore, the promotion and application of electric automobile depend on the combination property of battery in electric automobile to a great extent.Therefore, need to detect the performance of large-sized power lithium battery.Wherein, the insulating property of large-sized power lithium battery are important performance parameters, and by detecting the insulation resistance of battery, the state of insulation of monitoring battery at any time, guarantees that electric motor car or other main equipment can use the battery that state of insulation is good.
The resistance that need to connect large resistance in the time insulating detection is to share the voltage of large-sized power lithium battery, but the resistance of large resistance also needs to consume electric energy in the time not insulating detection, and electric discharge can cause a large amount of losses of electric energy for a long time.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of insulation detecting circuit of large-sized power lithium battery, is intended to solve the time beyond insulation detects, and large-sized power lithium battery also can consume the problem of electric energy.
The utility model is to realize like this, a kind of insulation detecting circuit of large-sized power lithium battery, comprise large-sized power lithium battery and insulation monitoring module, described insulation detecting circuit also comprises two gate-controlled switches, and the positive pole of described large-sized power lithium battery and negative pole are connected with described insulation monitoring module by each described gate-controlled switch wherein respectively.
Described insulation detecting circuit, wherein, described insulation detecting circuit also comprises the control module of the state for controlling described gate-controlled switch, described control module is connected with described gate-controlled switch.
Described insulation detecting circuit, wherein, described gate-controlled switch is high pressure optocoupler.
Described insulation detecting circuit, wherein, described control module comprises on-off circuit, resistance and MCU, the first end of described on-off circuit is connected with described MCU, the second end of described on-off circuit is connected with the anode of light emitting diode in described high pressure optocoupler, and the 3rd end of described on-off circuit is connected with a positive voltage by described resistance.
Described insulation detecting circuit, wherein, described gate-controlled switch is IGBT.
Described insulation detecting circuit, wherein, the on-off circuit in described control module is triode, metal-oxide-semiconductor or relay.
Compared with prior art, beneficial effect is the utility model: described gate-controlled switch can conducting in the time need to detecting the insulating property of large-sized power lithium battery, and disconnecting when detecting insulating property, can avoid the unnecessary loss of electric quantity of lithium battery.
Brief description of the drawings
Fig. 1 is the circuit diagram that insulation detecting circuit one embodiment of the utility model large-sized power lithium battery provides;
Fig. 2 is the circuit diagram that another embodiment of insulation detecting circuit of the utility model large-sized power lithium battery provides.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, for the utility model one preferred embodiment, a kind of insulation detecting circuit of large-sized power lithium battery, comprise large-sized power lithium battery 101 and insulation monitoring module 103, described insulation detecting circuit also comprises two gate-controlled switches (not marking in the drawings), and the positive pole of described large-sized power lithium battery 101 is connected with described insulation monitoring module 103 by a wherein each described gate-controlled switch respectively with negative pole.
For make large-sized power lithium battery 101 in resistance can show significantly, in Fig. 1, used the resistance in the equivalent large-sized power lithium battery 101 of virtual resistance 102.In insulation monitoring module 103, there is some resistance, such as, some resistance be resistance R 1, resistance R 2, resistance R 3 ..., resistance R 11, the resistance of each resistance can be the same or different, the concrete resistance of some resistance determines according to actual needs, and described some resistance are all for sharing the voltage of large-sized power lithium battery 101.
Preferably, described two gate-controlled switches are high pressure optocoupler 1041,1042.Described insulation detecting circuit also comprises the control module 1051,1052 for controlling described gate-controlled switch state, and described control module 1051 is connected with high pressure optocoupler 1041, and control module 1052 is connected with high pressure optocoupler 1042.
As shown in Figure 2, described control module 1051 comprises on-off circuit S2, resistance R 101 and MCU1061, the first end of described on-off circuit S2 is connected with described MCU1061, the second end of described on-off circuit S2 is connected with the anode of light emitting diode in described high pressure optocoupler 1041, and the 3rd end of described on-off circuit S2 is connected with a positive voltage by resistance R 101.Described control module 1052 comprises on-off circuit S3, resistance R 102 and MCU1062, the first end of described on-off circuit S3 is connected with described MCU1062, the second end of described on-off circuit S3 is connected with the anode of light emitting diode in described high pressure optocoupler 1042, and the 3rd end of described on-off circuit S3 is connected with a positive voltage by resistance R 102.Preferably, described on-off circuit S2, S3 are triode, metal-oxide-semiconductor or relay.
Combine with each above-mentioned related embodiment, described gate-controlled switch is IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar transistor).
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (6)
1. the insulation detecting circuit of a large-sized power lithium battery, comprise large-sized power lithium battery and insulation monitoring module, it is characterized in that, described insulation detecting circuit also comprises two gate-controlled switches, and the positive pole of described large-sized power lithium battery and negative pole are connected with described insulation monitoring module by each described gate-controlled switch wherein respectively.
2. insulation detecting circuit according to claim 1, is characterized in that, described insulation detecting circuit also comprises the control module of the state for controlling described gate-controlled switch, and described control module is connected with described gate-controlled switch.
3. insulation detecting circuit according to claim 2, is characterized in that, described gate-controlled switch is high pressure optocoupler.
4. insulation detecting circuit according to claim 3, it is characterized in that, described control module comprises on-off circuit, resistance and MCU, the first end of described on-off circuit is connected with described MCU, the second end of described on-off circuit is connected with the anode of light emitting diode in described high pressure optocoupler, and the 3rd end of described on-off circuit is connected with a positive voltage by described resistance.
5. insulation detecting circuit according to claim 1 and 2, is characterized in that, described gate-controlled switch is IGBT.
6. insulation detecting circuit according to claim 4, is characterized in that, the on-off circuit in described control module is triode, metal-oxide-semiconductor or relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420060740.XU CN203745617U (en) | 2014-02-10 | 2014-02-10 | Large power lithium battery insulation detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420060740.XU CN203745617U (en) | 2014-02-10 | 2014-02-10 | Large power lithium battery insulation detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203745617U true CN203745617U (en) | 2014-07-30 |
Family
ID=51345401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420060740.XU Expired - Fee Related CN203745617U (en) | 2014-02-10 | 2014-02-10 | Large power lithium battery insulation detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203745617U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106226670A (en) * | 2016-09-05 | 2016-12-14 | 深圳市沛城电子科技有限公司 | The insulation detecting circuit of electric automobile and method |
| CN107340439A (en) * | 2017-05-18 | 2017-11-10 | 扬子江汽车集团有限公司 | A kind of off-grid detection means of trolleybus |
-
2014
- 2014-02-10 CN CN201420060740.XU patent/CN203745617U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106226670A (en) * | 2016-09-05 | 2016-12-14 | 深圳市沛城电子科技有限公司 | The insulation detecting circuit of electric automobile and method |
| CN106226670B (en) * | 2016-09-05 | 2019-02-22 | 深圳市沛城电子科技有限公司 | The insulation detecting circuit and method of electric car |
| CN107340439A (en) * | 2017-05-18 | 2017-11-10 | 扬子江汽车集团有限公司 | A kind of off-grid detection means of trolleybus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104505888A (en) | Mobile terminal and charging device | |
| CN102496923A (en) | Input circuit with reverse connection preventing protection | |
| CN104007709A (en) | Electrical device, and control device and control method thereof | |
| CN104602386A (en) | Positive and negative polarity conversion circuit and LED lamp | |
| CN203745617U (en) | Large power lithium battery insulation detection circuit | |
| CN204376458U (en) | A kind of mobile terminal and charging device | |
| CN203775173U (en) | Time delay switch circuit and dual-power-source selector switch device with same | |
| CN203289394U (en) | A switch circuit and a communication power supply | |
| CN202840512U (en) | Reverse-connection-preventing relay switch circuit | |
| CN102684137B (en) | A kind of system and method realizing the safe power on/off of high-tension circuit | |
| CN201937249U (en) | Inverted power supply and short-circuit protection device of same | |
| CN202218012U (en) | Power supply having reversal connection protection function | |
| CN104617773A (en) | Positive-negative automatic conversion circuit and power output module | |
| CN104600690A (en) | LED lamp and input polarity automatic converting circuit thereof | |
| CN204271916U (en) | A kind of auxiliary power supply circuit of Switching Power Supply | |
| CN203617758U (en) | Constant-power charge power supply | |
| CN202978408U (en) | Double-power-supply automatic switching circuit | |
| CN207994625U (en) | Counnter attack based on metal-oxide-semiconductor and peak restrained circuit | |
| CN202550470U (en) | System for safely switching on and off high-voltage circuit | |
| CN204089717U (en) | A kind of on-off control circuit of solar panel | |
| CN204290460U (en) | The connecting circuit of step-down charger and uninterrupted power supply in a kind of uninterrupted power supply | |
| CN204068778U (en) | A kind of motor starter | |
| CN204517047U (en) | Electricity-saving socket | |
| CN204349945U (en) | Switching device and switching circuit | |
| CN203674738U (en) | Energy-saving battery capacity grading cabinet device |
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: 20140730 Termination date: 20200210 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |