CN208443986U - Power battery monitoring device and electrokinetic cell system comprising the monitoring device - Google Patents
Power battery monitoring device and electrokinetic cell system comprising the monitoring device Download PDFInfo
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- CN208443986U CN208443986U CN201821086603.8U CN201821086603U CN208443986U CN 208443986 U CN208443986 U CN 208443986U CN 201821086603 U CN201821086603 U CN 201821086603U CN 208443986 U CN208443986 U CN 208443986U
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- monitoring device
- temperature
- power battery
- battery monitoring
- sensitive component
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model discloses a kind of power battery monitoring device and include the electrokinetic cell system of the monitoring device.The power battery monitoring device includes: battery management system, is responsible for monitoring temperature and protects power battery；Several temperature-sensitive components, each temperature-sensitive component, which is arranged in, can perceive at at least position of a battery core temperature, and each temperature-sensitive component includes concatenated connection terminal and thermoswitch；And with the concatenated sampling line of an at least thermoswitch；Wherein, the signaling interface of the output end of above-mentioned sampling line and battery management system connects.Whether power battery monitoring device tool provided by the utility model can perceive battery core temperature adjacent to thermal runaway threshold value, it can be in the case where not increasing a large amount of temperature sampling routes, the generation of thermal runaway event is detected in advance, to issue alarm, the actual demand for alarming and reserving in advance enough escape times can be fully met.
Description
Technical field
The utility model relates to battery monitoring devices, and in particular to a kind of power battery monitoring device and include monitoring dress
The electrokinetic cell system set.
Background technique
Power battery national standard regulation is intended to a requirement: battery system should have the function of detecting battery thermal runaway
And can alarm in advance, so that personnel withdraw.Current detection means are smog and temperature sensing and the alarm of battery package level,
The problem of this kind of scheme, is that the level of detection is in battery package level, and when alert if meets, internal battery core is had occurred and that
A degree of thermal runaway (having generated smog or battery pack spacing high-temperature) cannot fully meet and alarm and reserve in advance enough
Escape time effect.
Utility model content
For the defects in the prior art, whether adjacent the purpose of this utility model is to provide a kind of if can perceive battery core temperature
The power battery monitoring device of near-thermal threshold value out of control；It can be detected in advance in the case where not increasing a large amount of temperature sampling routes
To the generation of thermal runaway event, to issue alarm.
In order to solve the above technical problems, the utility model provides a kind of power battery monitoring device comprising:
Battery management system is responsible for monitoring temperature and protects power battery；
Several temperature-sensitive components, each temperature-sensitive component are arranged at the position that can perceive at least one battery core temperature, Mei Gere
Quick component includes concatenated connection terminal and thermoswitch；And
With the concatenated sampling line of at least one thermoswitch；
Wherein, the output end of the sampling line and the signaling interface (input terminal) of battery management system connect.
Preferably, the temperature-sensitive component is arranged on the pole of battery core.
Preferably, the temperature-sensitive component is arranged in battery core surface and can perceive at the position of battery core temperature.
Preferably, which further includes several connection sheets, and each connection sheet connects 2 or more electricity
Core, the temperature-sensitive component are arranged in connection sheet.
Preferably, which further includes wiring board, and the temperature-sensitive component and sampling line setting exist
On the wiring board.
Preferably, the connection terminal is voltage sample terminal.
Preferably, the connection terminal is thermally conductive terminal, and the material of the thermally conductive terminal is aluminium, aluminium alloy, copper or copper alloy.
The temperature of battery core is transmitted on thermoswitch by thermally conductive terminal, which can close on thermal runaway threshold value in battery core temperature
When triggering state switch.Since one end of thermoswitch is connected on battery management system by sampling line, when thermoswitch
After state switches, battery management system can monitor the variation of the monitoring dotted state, to judge that the battery core may be i.e.
Thermal runaway will occur.Then, battery management system can be warned with cutoff high electricity and to user's sending, guarantee that user has abundance
Time withdraws.
Preferably, in the outside of the temperature-sensitive component, package is provided with insulation material layer.
Preferably, the information of the output end output of the battery management system includes: the ID location information and report of battery core
Alert information；Battery management system by signaling interface can be exported when receiving battery core thermal runaway signal battery core ID location information and
Warning message.
The utility model additionally provides a kind of electrokinetic cell system, and it includes above-mentioned power battery monitoring devices.
Compared with prior art, the power battery monitoring device of the utility model has the advantage that needs to examine each
Thermoswitch is added in the battery core surface of survey.When tested battery core temperature is close to thermal runaway threshold value, switching device (thermoswitch) by
Conducting becomes cut-off (or opposite), and battery management system detects disconnection (or connection) signal, to judge that the position battery core is on the point of
Face generation thermal runaway, reports the position ID and alert of the battery core.In addition, the same circuit can seal in multiple detections
Point, any detection point failure can all cause circuit that the change of on-off occurs, although being unable to accurate judgement wherein occurs heat mistake
Control, but may determine that in whole system has thermal runaway to have occurred, thus timely early warning.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the power battery monitoring device of the utility model.
Fig. 2 is the partial enlarged view of Fig. 1.
Fig. 3 is system mode schematic diagram after the thermoswitch of the power battery monitoring device of the utility model triggers.
Fig. 4 is a kind of structural schematic diagram for power battery monitoring device that the embodiments of the present invention provide.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and examples.Following embodiment will be helpful to this field
Technical staff further understand the utility model, but do not limit the utility model in any form.It should be pointed out that this
For the those of ordinary skill in field, without departing from the concept of the premise utility, several variations can also be made and repaired
Change.
Embodiment 1
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of power battery monitoring device is provided for the utility model, comprising: thermoswitch
4, connection terminal (the present embodiment uses voltage sample terminal 3), sampling line 5, wiring board 6 and battery management system 8.Temperature-sensitive component
It is mounted on the position that can perceive 1 temperature of battery core, on pole or connection sheet 2.Temperature-sensitive component is mounted on connection sheet 2 in this example
On.Wherein voltage sample terminal 3 can also be Heat Conduction Material, including but not limited to aluminium (and aluminium alloy), copper (and copper alloy) etc..From
Above-mentioned position is drawn, and is then installed.Voltage sample terminal 3 is packaged by metal-back or plastic housing (in order to group
Dress), it can be connect by way of dispensing or welding with measured point.
Thermoswitch 4 and voltage sample terminal 3 are connected in power battery sampling line 5.Thermoswitch 4, voltage sampling port
Son 3 and sampling line 5 use integrated circuit technology that microelectronic component is made, and can directly use wave-soldering, and patch welds assist side 6
On.Meanwhile it can be by increasing insulation-encapsulated, or the mode of package insulating film, to carry out high-voltage electrical apparatus isolation.
Furthermore it is possible to arrange thermoswitch 4 for each battery core 1, thermoswitch 4 can also be shared with multiple battery cores 1, such as
Multiple battery cores 1 that connection sheet 2 connects, actual temperature can be very close by the conduction of connection sheet 2, at this moment, these battery cores 1
The same thermoswitch 4 can be shared.
Such as Fig. 3, when thermoswitch 4, which perceives temperature of powered cell, reaches thermal runaway threshold value, on-off characteristic changing (this implementation
Example becomes open-circuit condition from state in a triggered using thermoswitch).Battery management system 8, can detecte C3/
C4 port processing voltage becomes 0 value from normal voltage, according to the variation of this collection voltages, judges battery measurement point temperature proximity thermal
Threshold value out of control realizes the detection and warning function of battery system thermal runaway.
Embodiment 2
As shown in figure 4, the utility model provides a kind of power battery monitoring device, comprising: temperature-sensitive component (contains connection
Terminal 3 and thermoswitch 4), sampling line 5 and battery management system 8.Temperature-sensitive component is mounted on the position that can perceive 1 temperature of battery core
It sets.As schemed, temperature-sensitive component is mounted on 1 surface of battery core in this example.Wherein connection terminal 3 is Heat Conduction Material, including but not limited to
Aluminium (and aluminium alloy), copper (and copper alloy) etc..It draws from above-mentioned position, is then installed.Connection terminal by metal-back or
Plastic housing is packaged, and can be connect by way of dispensing or welding with measured point.Such as Fig. 4, when multiple battery cores detect,
Temperature-sensitive component is arranged in each battery core, and then the thermoswitch 4 in each battery core is together in series by sampling line 5, access electricity
Pond management system 8.
Thermoswitch 4 can be arranged for each battery core 1, can also share thermoswitch 4 with multiple battery cores 1.Such as close to
Multiple battery cores 1, actual temperature can be very close by the conduction of connection sheet, and at this moment, these battery cores 1 can share same
A thermoswitch 4.
In normal state, entire series loop is on state.Reach thermal runaway when thermoswitch 4 perceives battery core temperature
When threshold value, on-off characteristic changing (this embodiment example becomes open-circuit condition from state in a triggered using thermoswitch).
At this point, 8 visible detection of battery management system is in open-circuit condition to entire sampling 5 circuit of line, so that judgement has the survey of some battery
Amount point temperature realizes the detection and warning function of battery system thermal runaway adjacent to thermal runaway threshold value.
In conclusion power battery monitoring device provided by the utility model includes: battery management system, setting can felt
Know the temperature-sensitive component at the position of battery core temperature, and with the concatenated sampling line of temperature-sensitive component.The power battery monitoring device can be felt
Know that battery core temperature whether adjacent to thermal runaway threshold value, can detect in advance heat in the case where not increasing a large amount of temperature sampling routes
The generation of event out of control can fully meet the actual demand for alarming and reserving in advance enough escape times to issue alarm.
It is discussed in detail although the content of the utility model has passed through above preferred embodiment, but it should be appreciated that on
The description stated is not considered as limitations of the present invention.After those skilled in the art have read above content, for
A variety of modifications and substitutions of the utility model all will be apparent.Therefore, the protection scope of the utility model should be by appended
Claim limit.
Claims (10)
1. a kind of power battery monitoring device, which is characterized in that the power battery monitoring device includes:
Battery management system；
Several temperature-sensitive components, each temperature-sensitive component are arranged at the position that can perceive at least one battery core temperature, each temperature-sensitive group
Part includes concatenated connection terminal and thermoswitch；And
With the concatenated sampling line of at least one thermoswitch；
Wherein, the output end of the sampling line and the signaling interface of battery management system connect.
2. power battery monitoring device as described in claim 1, which is characterized in that battery core is arranged in the temperature-sensitive component
On pole.
3. power battery monitoring device as described in claim 1, which is characterized in that the temperature-sensitive component is arranged in battery core table
Face can perceive at the position of battery core temperature.
4. power battery monitoring device as described in claim 1, which is characterized in that if the power battery monitoring device further includes
Involvement contact pin, each connection sheet connect 2 or more battery cores, and the temperature-sensitive component is arranged in connection sheet.
5. power battery monitoring device as described in claim 1, which is characterized in that the power battery monitoring device further includes line
Road plate, temperature-sensitive component and sampling line are arranged on the wiring board.
6. power battery monitoring device as described in claim 1, which is characterized in that the connection terminal is voltage sampling port
Son.
7. power battery monitoring device as described in claim 1 or 6, which is characterized in that the connection terminal is thermally conductive terminal.
8. power battery monitoring device as described in claim 1, which is characterized in that in the outside of the temperature-sensitive component, package is set
It is equipped with insulation material layer.
9. power battery monitoring device as described in claim 1, which is characterized in that the output end of the battery management system
The information of output includes: the ID location information and warning message of battery core.
10. a kind of electrokinetic cell system, it includes the power battery monitoring devices as described in any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821086603.8U CN208443986U (en) | 2018-07-10 | 2018-07-10 | Power battery monitoring device and electrokinetic cell system comprising the monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821086603.8U CN208443986U (en) | 2018-07-10 | 2018-07-10 | Power battery monitoring device and electrokinetic cell system comprising the monitoring device |
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| Publication Number | Publication Date |
|---|---|
| CN208443986U true CN208443986U (en) | 2019-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821086603.8U Active CN208443986U (en) | 2018-07-10 | 2018-07-10 | Power battery monitoring device and electrokinetic cell system comprising the monitoring device |
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| CN (1) | CN208443986U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109860740A (en) * | 2019-02-18 | 2019-06-07 | 华为技术有限公司 | A kind of control method, device and battery pack for alleviating the sprawling of battery pack thermal runaway |
| WO2020220880A1 (en) * | 2019-04-30 | 2020-11-05 | 宁德时代新能源科技股份有限公司 | Thermal runaway detection circuit and method |
-
2018
- 2018-07-10 CN CN201821086603.8U patent/CN208443986U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109860740A (en) * | 2019-02-18 | 2019-06-07 | 华为技术有限公司 | A kind of control method, device and battery pack for alleviating the sprawling of battery pack thermal runaway |
| WO2020220880A1 (en) * | 2019-04-30 | 2020-11-05 | 宁德时代新能源科技股份有限公司 | Thermal runaway detection circuit and method |
| US11353515B2 (en) | 2019-04-30 | 2022-06-07 | Contemporary Amperex Technology Co., Limited | Thermal runaway detection circuit and method |
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Address after: Room 923, building a, Castle Peak headquarters building, 2666 Longxiang Road, Longwan District, Wenzhou City, Zhejiang Province 325024 Patentee after: Ruipu Lanjun Energy Co.,Ltd. Patentee after: Shanghai ruipuqing innovative energy Co., Ltd Address before: 325024 room 923, building a, Qingshan headquarters building, No. 2666, Longxiang Road, Longwan District, Wenzhou City, Zhejiang Province Patentee before: RUIPU ENERGY Co.,Ltd. Patentee before: Shanghai ruipuqing innovative energy Co., Ltd |