CN218827371U - Battery pack leakage monitoring control device, battery pack and battery system - Google Patents
Battery pack leakage monitoring control device, battery pack and battery system Download PDFInfo
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- CN218827371U CN218827371U CN202223050629.6U CN202223050629U CN218827371U CN 218827371 U CN218827371 U CN 218827371U CN 202223050629 U CN202223050629 U CN 202223050629U CN 218827371 U CN218827371 U CN 218827371U
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- battery pack
- battery
- control valve
- management system
- valve
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 15
- 239000003507 refrigerant Substances 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000001816 cooling Methods 0.000 claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 238000007654 immersion Methods 0.000 claims abstract description 9
- 239000002826 coolant Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 238000013022 venting Methods 0.000 claims 1
- 230000007480 spreading Effects 0.000 abstract description 2
- 238000004146 energy storage Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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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
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- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a battery pack leakage monitoring and controlling device, which comprises a first control valve arranged at the inlet of a refrigerant channel of a battery pack, a second control valve arranged at the outlet of the refrigerant channel, a plurality of groups of liquid cooling plates and a water sensor arranged in the battery pack; the water immersion sensor is used for detecting whether the battery pack leaks or not and transmitting a detected signal to the battery management system, the first control valve is connected with the battery management system, and the first control valve is used for receiving a water immersion signal sent by the battery management system and closing the refrigerant channel. The utility model discloses simple structure, when taking place the refrigerant and revealing, water sensor send signal to battery management system, and battery management system sends control signal to first control valve, and refrigerant input in this battery package is closed to first control valve, and the exit sets up the second control valve, can avoid under the arbitrary circumstances refrigerant to flow backward into in the p battery package, has higher spreading value.
Description
Technical Field
The utility model relates to an energy storage battery thermal management technical field, concretely relates to battery package weeping monitoring control device, battery package and battery system.
Background
The energy storage group battery can produce a large amount of heats when charging and discharging, and battery spatial arrangement is inseparable in addition, and the temperature in the energy storage group battery rises rapidly, even the temperature in the total space of arranging in group battery, the container can obtain effectual decline under current heat abstractor's effect, but the inside local heat of incasement is difficult to even discharge, great difference appears in battery operational environment. When the battery pack runs for a long time in an environment with large temperature difference, serious differences of internal resistance and capacity among batteries can be caused, over-charge or over-discharge of partial batteries can be caused, the performance and the service life of an energy storage system are influenced, and potential safety hazards can be caused seriously.
Based on the reasons, the water cooling device is adopted in the battery pack with better heat management performance at present, a liquid cooling plate is arranged in the battery pack, and a refrigerant is introduced for circulation so as to take away heat generated by charging and discharging of the battery core. The invention discloses a group structure of an electric core and liquid cooling plates in the invention patent with the application number of 202210815415.9, wherein the liquid cooling plates are arranged on two large side surfaces of the electric core, the cooling effect is better, but a certain refrigerant leakage risk exists due to the fact that the number of the liquid cooling plates is large and the liquid cooling plates are grouped by welding, so that a leakage monitoring device is urgently needed to be designed, when refrigerant leakage occurs in a battery pack, the refrigerant circulation in the battery pack is timely cut off, the safe operation of a battery system is ensured, and serious consequences such as battery short circuit caused by the refrigerant leakage are avoided.
Disclosure of Invention
The utility model aims at providing a battery package weeping monitor control device, battery package and battery system, aim at solving liquid cooling system weeping and do not in time discover, handle the potential safety hazard that causes.
In order to achieve the above object, the utility model provides a following technical scheme, a battery package weeping monitoring control device, its characterized in that: the system comprises a first control valve arranged at the inlet of a refrigerant channel of a battery pack, a second control valve arranged at the outlet of the refrigerant channel, a plurality of groups of liquid cooling plates and a water immersion sensor arranged in the battery pack; the water immersion sensor is used for detecting whether the battery pack leaks or not and transmitting a detected signal to the battery management system, the first control valve is connected with the battery management system, and the first control valve is used for receiving a water immersion signal sent by the battery management system and closing the refrigerant channel.
Furthermore, the first control valve is an electromagnetic valve and is used for receiving a signal sent by the battery management system to control the on-off of the refrigerant channel.
Furthermore, the second control valve is a one-way valve and is used for conducting in a one-way mode and sealing the refrigerant channel reversely.
Further, the check valve is a mechanical valve.
Furthermore, the water sensor is a cable type water sensor and is arranged at the bottom of the battery pack, and the free end of the water sensor is fixed on the bottom plate of the battery pack through a connecting piece.
Further, the utility model also provides a battery pack, including battery pack casing, multiunit electricity core, thermal management system, and as above an arbitrary battery pack weeping monitoring control device.
Furthermore, the inside seal chamber that is of battery package casing still is equipped with the relief valve on it.
Further, the pressure release valve is a bidirectional-ventilation one-way drain valve.
Furthermore, the utility model also provides a battery system, including water chiller and a plurality of as above arbitrary one battery package.
To sum up, the utility model discloses simple structure sets up the solenoid valve in refrigerant passageway entrance, and the exit sets up the check valve, and in addition water sensor, when taking place the refrigerant and revealing, water sensor sends signal to battery management system, and battery management system sends control signal to solenoid valve, and the refrigerant input in this battery package is closed to the solenoid valve, and the exit sets up the check valve, can avoid under the arbitrary circumstances in the refrigerant pours into p battery package backward, has higher spreading value.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a block diagram of a system structure according to an embodiment of the present invention.
Description of reference numerals:
the system comprises a battery pack 1, a first control valve 2, a second control valve 3, a water immersion sensor 4, a battery management system 5, a refrigerant channel 6, a liquid cooling plate 7 and a water cooling unit 8.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, back, 8230; \8230;) are provided in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, taking "A and/or B" as an example, including either the A aspect, or the B aspect, or both A and B satisfied aspects. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Under the general condition, the energy storage group battery can produce a large amount of heats when charging and discharging, and battery spatial arrangement is inseparable in addition, and the temperature in the energy storage group battery rises rapidly, even the temperature of the total space of arranging in group battery, the container can obtain effectual decline under current heat abstractor's effect, nevertheless the inside local heat of incasement is difficult to even discharge, great difference appears in battery operational environment. The battery pack can cause serious difference of internal resistance and capacity among batteries when running for a long time in an environment with large temperature difference, over-charge or over-discharge of partial batteries can be caused, the performance and the service life of an energy storage system are influenced, and potential safety hazards can be caused seriously. Therefore, to ensure a balanced temperature environment between batteries, a liquid cooling plate needs to be arranged between the battery cores, and a cooling medium is introduced to cool the battery cores. However, the liquid cooling plates with a large number always have leakage risks, and the battery cell is short-circuited when meeting conductive liquid, so that a fault occurs at a low rate, and an explosion risk occurs at a high rate. Therefore, a leakage monitoring and controlling device is needed to close the refrigerant circulation of the battery pack at the first time when the refrigerant leaks, so as to avoid serious consequences caused by continuous leakage.
In order to solve the above problem, the utility model provides a battery package weeping monitor control device, figure 1 is the utility model discloses a three-dimensional structure schematic diagram of an embodiment.
Referring to fig. 1, a liquid-cooled heat dissipation solderless battery pack grouping structure includes a first control valve 2 disposed at an inlet of a coolant channel 6 of a battery pack 1, a second control valve 3 disposed at an outlet of the coolant channel 6, a plurality of groups of liquid-cooled plates 7, and a water sensor 4 disposed in the battery pack 1; the water logging sensor 4 is used for detecting whether the battery pack 1 leaks or not and transmitting a detected signal to the battery management system 5, the first control valve 2 is connected with the battery management system 5, and the first control valve 2 is used for receiving a water logging signal sent by the battery management system 5 and closing the refrigerant channel 6.
In this embodiment, the parallelly connected setting of multiunit liquid cooling board 7, coolant passage 6 gets into the liquid cooling board from the liquid cooling board left end of foremost side, after flowing into each liquid cooling board 7, from rearmost end liquid cooling board right side outflow battery package, so go forward, go out after, the liquid cooling board 7 of parallelly connected setting, the flow resistance in each liquid cooling board 7 can be balanced better, guarantee better liquid cooling effect, each liquid cooling board 7 simultaneously, hydraulic pressure is balanced in coolant passage 6 everywhere, also can reduce the risk that the refrigerant was revealed.
Further, the first control valve 2 is an electromagnetic valve, and is configured to receive a signal sent by the battery management system 5 to control on/off of the refrigerant channel 6.
Further, the second control valve 3 is a check valve for one-way communication and reverse sealing of the refrigerant channel.
Further, the check valve is a mechanical valve.
Furthermore, in this embodiment, water sensor 4 is cable formula water sensor, locates 1 bottom of battery package, and its free end passes through the connecting piece to be fixed on the bottom plate of battery package 1, avoids cable formula water sensor winding, folding to influence monitoring effect. The cable type water sensor is arranged at the bottom of a battery pack, the space is not occupied, if a liquid cooling system leaks a refrigerant, the water sensor 4 detects the leakage of the refrigerant as long as a cable 8-10cm long contacts the refrigerant, meanwhile, the battery management system 5 receives a signal of the leakage of the refrigerant and sends a control signal to the electromagnetic valve, the electromagnetic valve controls the closing of an inlet of a refrigerant channel 6 of the battery pack 1, the refrigerant does not flow into the battery pack 1 any more, the leakage amount in real time can be effectively reduced, meanwhile, a check valve at an outlet of the refrigerant channel 6 can control the one-way circulation of the refrigerant, namely, the refrigerant can only flow out of the battery pack 1 through the check valve and cannot flow into the battery pack 1 in the opposite direction, and therefore, the refrigerant backflow phenomenon caused by the reduction of hydraulic pressure in the battery pack 1 can be avoided. And the battery management system 5 receives the refrigerant leakage signal and sends out an alarm signal to remind personnel of overhauling.
In this embodiment, the water sensor is cable formula water sensor, and other sensors of any type, style are as long as can detect liquid and reveal, all are in the utility model discloses the protection scope of claim does not do too much restriction here.
Further, the utility model also provides a battery pack, including battery pack casing, multiunit electricity core, battery management system, and as above an arbitrary battery pack weeping monitoring control device.
Furthermore, the inside of the battery pack shell is a sealed cavity, a pressure release valve (not shown in the figure) is further arranged on the battery pack shell, the pressure release valve is a bidirectional-ventilation one-way drain valve, the bidirectional-ventilation function of the pressure release valve is used for adjusting the air pressure in the sealed battery pack 1, and the one-way drain valve is used for discharging water vapor out of the battery pack 1 to avoid the generation of condensed water due to the temperature change in the battery pack 1. Since the battery pack 1 includes all the technical features of the embodiment of the device for monitoring and controlling leakage of a battery pack, it at least has the beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated herein.
Furthermore, the utility model also provides a battery system, including water chilling unit and as far as any one more the battery package. The specific structure of the battery pack refers to the above embodiment, and since the battery system adopts all the technical solutions of the above embodiment, the battery pack at least has the beneficial effects brought by the technical solutions of the above embodiment, and details are not repeated herein.
The above is only the optional embodiment of the present invention, and not therefore the limit of the patent scope of the present invention, all of which are in the concept of the present invention, the equivalent structure transformation of the content of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.
Claims (9)
1. The utility model provides a battery package weeping monitoring control device which characterized in that: the system comprises a first control valve arranged at the inlet of a refrigerant channel of a battery pack, a second control valve arranged at the outlet of the refrigerant channel, a plurality of groups of liquid cooling plates and a water immersion sensor arranged in the battery pack; the water immersion sensor is used for detecting whether the battery pack leaks or not and transmitting a detected signal to the battery management system, the first control valve is connected with the battery management system, and the first control valve is used for receiving a water immersion signal sent by the battery management system and closing the refrigerant channel.
2. The battery pack leakage monitoring and control device of claim 1, wherein the first control valve is an electromagnetic valve for receiving a signal sent by the battery management system to control the on-off of the refrigerant channel.
3. The battery pack leakage monitoring and control device of claim 1, wherein the second control valve is a one-way valve for one-way communication and reverse sealing of the coolant channel.
4. The device as claimed in claim 3, wherein the check valve is a mechanical valve.
5. The battery pack leakage monitoring and control device according to claim 1, wherein the water sensor is a cable water sensor and is arranged at the bottom of the battery pack, and the free end of the water sensor is fixed on the bottom plate of the battery pack through a connecting piece.
6. A battery pack, which is characterized by comprising a battery pack shell, a plurality of groups of battery cells, a thermal management system and the battery pack leakage monitoring and controlling device as claimed in any one of claims 1 to 5.
7. The battery pack of claim 6, wherein the battery pack housing is a sealed chamber having a pressure relief valve therein.
8. The battery pack of claim 7, wherein the pressure relief valve is a two-way venting one-way drain valve.
9. A battery system comprising a water chiller and a plurality of battery packs as claimed in any one of claims 6 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223050629.6U CN218827371U (en) | 2022-11-16 | 2022-11-16 | Battery pack leakage monitoring control device, battery pack and battery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223050629.6U CN218827371U (en) | 2022-11-16 | 2022-11-16 | Battery pack leakage monitoring control device, battery pack and battery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218827371U true CN218827371U (en) | 2023-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223050629.6U Active CN218827371U (en) | 2022-11-16 | 2022-11-16 | Battery pack leakage monitoring control device, battery pack and battery system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218827371U (en) |
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2022
- 2022-11-16 CN CN202223050629.6U patent/CN218827371U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 400000 No. 107, datagu Middle Road, Xiantao street, Yubei District, Chongqing Patentee after: Chongqing Gengchen Energy Technology Co.,Ltd. Country or region after: China Address before: 400000 No. 107, datagu Middle Road, Xiantao street, Yubei District, Chongqing Patentee before: Chongqing Three Gorges Times Energy Technology Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |