CN209747565U - Power battery cover plate and power battery - Google Patents
Power battery cover plate and power battery Download PDFInfo
- Publication number
- CN209747565U CN209747565U CN201920846107.6U CN201920846107U CN209747565U CN 209747565 U CN209747565 U CN 209747565U CN 201920846107 U CN201920846107 U CN 201920846107U CN 209747565 U CN209747565 U CN 209747565U
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- cover plate
- power battery
- plate body
- explosion
- cooling liquid
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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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Abstract
The utility model provides a power battery apron and power battery, the utility model provides a power battery apron is including apron body, apron briquetting, fixed slot and cooling tube. The cover plate body is fixedly provided with a positive pole column and a negative pole column, the upper surface of the cover plate body is provided with a mounting groove, the bottom surface of the mounting groove is provided with an explosion-proof sheet mounting hole, and an explosion-proof sheet is arranged on the cover plate body; the cover plate pressing block is fixedly arranged in the mounting groove and can form compression fixation on the explosion-proof sheet, and a through hole arranged corresponding to the explosion-proof sheet is formed in the cover plate pressing block; the fixing groove is formed on the upper surfaces of the cover plate body and the cover plate pressing block and is positioned between the positive pole column and the negative pole column; the cooling pipe is fixedly arranged in the fixed groove and is provided with a cooling liquid inlet and a cooling liquid outlet which can be respectively communicated with the external liquid supply device. The utility model discloses a power battery apron can improve power battery's operating stability, improves power battery's safety protection performance.
Description
Technical Field
the utility model relates to a power battery technical field, in particular to power battery apron. The utility model discloses still relate to a power battery.
Background
In the fields of new energy automobiles and the like, the power battery has wide application space. The casing of the power battery is used for packaging and protecting the electric core in the battery, and a power battery cover plate is generally arranged on the upper part of the casing, so that the inside of the battery is packaged finally.
When the power battery runs, the running temperature of the power battery has an important influence on the performance of the power battery, and when the temperature of the power battery is increased due to the self-running of the power battery, the power supply performance of the power battery is influenced, and abnormal conditions are possibly caused. For example, the gas generated inside the power battery may cause abnormal pressurization and even explosion of the battery, thereby causing safety accidents.
The power battery cover plate is generally integrated with a pole column to realize the electric conduction from each battery cell pole lug to the outside of the battery. The conventional power battery cover plate has single function, only plays a role in packaging and pole integration, and lacks necessary measures for functions of safety protection and the like of the battery, so that the operation stability and safety performance of the power battery are not high.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a power battery apron to do benefit to the improvement of power battery operating stability and safety protection performance.
in order to achieve the above purpose, the technical scheme of the utility model is realized like this:
A power cell cover plate comprising:
The cover plate comprises a cover plate body, wherein the cover plate body is square, a positive pole column and a negative pole column are fixedly arranged on the cover plate body, an installation groove between the positive pole column and the negative pole column is formed in the upper surface of the cover plate body, an explosion-proof sheet installation hole is formed in the bottom surface of the installation groove, and an explosion-proof sheet is arranged on the cover plate body in a covering mode;
The cover plate pressing block is fixedly arranged in the mounting groove and can form compression fixation on the explosion-proof sheet, and a through hole arranged corresponding to the explosion-proof sheet is formed in the cover plate pressing block;
the fixing groove is formed on the upper surfaces of the cover plate body and the cover plate pressing block and is positioned between the positive pole column and the negative pole column;
And the cooling pipe is fixedly arranged in the fixed groove and is provided with a cooling liquid inlet and a cooling liquid outlet, and the cooling liquid inlet and the cooling liquid outlet can be respectively communicated with an external liquid supply device to form circulating circulation of cooling liquid in the cooling pipe.
Furthermore, a liquid injection hole is formed through the cover plate body and the cover plate pressing block.
Further, the cooling pipe is configured to be in a shape of a figure "8".
further, the cooling liquid inlet and the cooling liquid outlet are arranged in parallel with the positive pole.
furthermore, a protection component is arranged on the power battery cover plate, and the protection component can bear the extra pressure inside the power battery provided with the power battery cover plate to form the conduction between the negative pole column and the cover plate body.
Furthermore, the protection assembly comprises a pole pressing plate which is communicated with the negative pole column and is arranged in an insulating way with the cover plate body, and a protection unit which is communicated with the cover plate body and can be communicated with the pole pressing plate due to compression deformation.
Furthermore, the pole pressing plate is sleeved on the negative pole, and an insulating gasket is fixedly arranged between the pole pressing plate and the cover plate body.
Furthermore, a mounting hole is formed in the bottom surface of the cover plate body, a via hole communicated with the mounting hole is formed in the insulating gasket, the protection unit comprises a protection sheet fixedly arranged in the mounting hole, and the protection sheet can be deformed due to extra pressure of the power battery and is abutted to the pole pressing plate.
Furthermore, the protection sheet comprises a base body fixedly arranged on the cover plate body and a bulge integrally formed in the middle of the upper surface of the base body.
Compared with the prior art, the utility model discloses following advantage has:
(1) Power battery apron, the integration is provided with explosion-proof piece and cooling tube on power battery apron, does benefit to the operating temperature who reduces power battery and can in time respond to its inside abnormal conditions to do benefit to the improvement of power battery operating stability and security.
(2) The liquid injection hole is formed in the power battery cover plate, so that the power battery can be maintained conveniently, and the power storage performance of the power battery is improved.
(3) The cooling pipe is arranged in a 8 shape, so that the arrangement length of the cooling pipe on the power battery cover plate can be increased well, and the cooling efficiency is improved.
(4) The inlet and outlet of the cooling pipe are arranged parallel to the anode pole or the cathode pole and are open upwards, so that the cooling pipe is convenient to connect and mount with an external liquid supply device.
(5) protection component's setting has further promoted power battery's security, when power battery is inside to be stepped up unusually, can in time form the ground connection with the help of the ground connection setting of power battery apron to realize power battery's negative pole post to strengthen power battery's whole safety protection effect.
(6) Through setting up utmost point post clamp plate and protection unit, constitute power battery under the normal condition the isolation of apron body and negative pole post and switch on under the abnormal conditions both, make whole protection component compact structure, and the technique of being convenient for realizes.
(7) An insulating gasket is arranged between the cover plate body and the pole pressing plate, so that the overall sealing performance of the protection assembly can be improved, and effective isolation insulation between the cover plate body and the negative pole is formed.
(8) By adopting the protection unit structure of the protection sheet, timely response to abnormal conditions inside the battery can be well realized, and the assembly of the protection component is convenient.
(9) The protection sheet is constructed into the base body and the protrusion, so that the protection sheet is convenient to integrally construct and the assembly and performance realization of the protection sheet are facilitated.
Another object of the present invention is to provide a power battery, in the power battery is provided with the power battery cover plate. The power battery has the configuration of cooling the power battery, and is favorable for the stability and safety of the power battery in operation.
Drawings
The accompanying drawings, which form a part of the present disclosure, are provided to provide a further understanding of the present disclosure, and the exemplary embodiments and descriptions thereof are provided to explain the present disclosure, wherein the related terms in the front, back, up, down, and the like are only used to represent relative positional relationships, and do not constitute an undue limitation of the present disclosure. In the drawings:
Fig. 1 is a schematic view of an overall structure of a power battery cover plate according to a first embodiment of the present invention;
fig. 2 is a schematic structural view of the power battery cover plate according to another view angle in the first embodiment of the present invention;
Fig. 3 is an exploded view of the cover plate of the power battery according to the first embodiment of the present invention;
Fig. 4 is a schematic structural view of a protection sheet according to a first embodiment of the present invention;
Description of reference numerals:
10-cover plate body, 101-installation groove, 1011-explosion-proof sheet installation hole, 1012-sinking groove and 1013-installation hole;
111-positive pole column, 112-negative pole column, 113-pole column base, 114-insulating sleeve and 115-clamping piece;
12-cover plate pressing block, 121-through hole, 122-liquid injection hole and 13-fixing groove;
141-pole pressing plate, 1411-pressing plate mounting hole, 142-protective sheet, 1421-base body, 1422-protrusion, 143-insulating gasket, 1431-via hole and 15-explosion-proof sheet;
21-cooling pipe, 211-cooling liquid inlet, 212-cooling liquid outlet.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
in the description of the present invention, terms of left, right, up, down, and the like are used for convenience of description and are based on terms in the illustrated state, and should not be construed as limiting the structure of the present invention; references to first, second, third, etc. are also made for ease of description and are not to be construed as indicating or implying relative importance.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
example one
the embodiment relates to a power battery cover plate, which can improve the running stability and the safety protection performance of a power battery. The power battery cover plate comprises a cover plate body, a cover plate pressing block, a fixing groove and a cooling pipe. The apron body is squarely, and has set firmly anodal post and negative pole post on the apron body to construct the mounting groove that is located between anodal post and the negative pole post on the upper surface of apron body, constructed the explosion-proof piece mounting hole on the bottom surface of mounting groove, it is equipped with the explosion-proof piece to cover the explosion-proof piece mounting hole. The cover plate pressing block is fixedly arranged in the mounting groove and can form compression fixation on the explosion-proof sheet, and a through hole corresponding to the explosion-proof sheet is formed in the cover plate pressing block. The fixing groove is formed on the upper surfaces of the cover plate body and the cover plate pressing block and is positioned between the positive pole column and the negative pole column. The cooling pipe is fixedly arranged in the fixed groove and is provided with a cooling liquid inlet and a cooling liquid outlet, and the cooling liquid inlet and the cooling liquid outlet can be respectively communicated with an external liquid supply device to form circulating circulation of cooling liquid in the cooling pipe.
Based on the general structural principle, an exemplary structure of the power battery cover plate of the present embodiment is shown in fig. 1 and 2, and mainly includes a cover plate body 10, a cover plate pressing block 12, a fixing groove 13 and a cooling pipe 21.
The cover plate body 10 is matched with the upper opening of the power battery casing, and is generally square. The cover plate body 10 may be made of aluminum plate or rigid plastic, but in order to facilitate the heat dissipation and grounding of the power battery, it is preferable that the cover plate body 10 is made of conductive metal and the grounding is disposed on the upper surface thereof.
As shown in fig. 3, a positive pole 111 and a negative pole 112 are fixedly arranged on the cover plate body 10, meanwhile, an installation groove 101 between the positive pole 111 and the negative pole 112 is constructed on the upper surface of the cover plate body 10, an explosion-proof sheet installation hole 1011 is constructed on the bottom surface of the installation groove 101, and an explosion-proof sheet 15 is arranged to cover the explosion-proof sheet installation hole 1011; the setting form of the explosion-proof sheet 15 in the explosion-proof sheet mounting hole 1011 can be various, so that the explosion-proof sheet 15 can be sealed and clamped in the explosion-proof sheet mounting hole 1011. In this embodiment, a stepped slot is formed on the upper edge of the mounting hole 1011 of the explosion-proof plate, and the explosion-proof plate 15 is formed in a sheet shape following the slot and is clamped in the slot.
In the mounting groove 101, a cover press block 12 is fixedly installed. The cover press block 12 may form a pressing and fixing of the rupture disk 15, and a through hole 121 arranged corresponding to the rupture disk 15 is formed on the cover press block 12. The explosion-proof sheet 15 is made of a material with low strength, and when the internal pressure of the power battery is abnormally increased, the internal pressure acts on the explosion-proof sheet 15; when the internal pressure exceeds the pressure-bearing value of the explosion-proof sheet 15, the explosion-proof sheet 15 is broken, and the internal pressure of the power battery is released, so that the explosion of the power battery can be prevented. The explosion-proof sheet 15 can adopt the existing mature technology, and the strength requirement can be selected according to the pressure requirement in the power battery.
in order to provide available hardware configuration conditions for cooling the power battery, fixing grooves 13 are formed on the upper surfaces of the cover plate body 10 and the cover plate pressing block 12; in a state where the cover press block 12 is assembled to the cover body 10, the entire fixing groove 13 is communicated to form an integrally penetrating groove passage. Meanwhile, in order to facilitate the avoidance of the two poles, it is preferable that the fixing groove 13 is provided between the positive pole 111 and the negative pole 112.
The cooling pipe 21 is disposed on the fixing groove 13, and the cooling pipe 21 is fixed in the fixing groove 13, preferably, by bonding or welding. The cooling pipe 21 has a cooling liquid inlet 211 and a cooling liquid outlet 212, and the cooling liquid inlet 211 and the cooling liquid outlet 212 are respectively communicated with an external liquid supply device, so that the cooling liquid can circulate in the cooling pipe 21. The heat generated in the operation process of the power battery can be dissipated through the power battery cover plate and is in heat exchange with the cooling liquid in the cooling pipe 21, so that the cooling of the power battery is realized.
In order to facilitate maintenance of the power battery and improve the power storage performance of the power battery, a liquid injection hole 122 may be formed in the cover plate of the power battery. Preferably, a liquid injection hole 122 is formed through the cover plate body 10 and the cover plate pressing block 12 at a position avoiding the cooling pipe 21, as shown in fig. 3, and the arrangement and sealing of the liquid injection hole can refer to the prior mature technology, and are not described in detail herein.
To improve the cooling efficiency, the arrangement of the cooling pipe 21 on the power battery cover plate should ensure a sufficient contact area to achieve the purpose of sufficient heat exchange between the cooling liquid and the power battery cover plate. Specifically, the arrangement length of the cooling pipe 21 on the power battery cover plate can be increased, and in this way, the arrangement path of the cooling pipe 21 can be variously changed. In the present embodiment, the cooling pipe 21 is configured in a shape of "8", and obviously, the fixing groove 13 for fixing the cooling pipe 21 also takes a corresponding path form.
It should be noted that the positive post 111 and the negative post 112 are fixed on the power battery cover plate in various forms, for example, the posts are welded on the cover plate body 10, or are fixed by locking nuts. In the present embodiment, as shown in fig. 2 and fig. 3, a pole base 113 is configured at the lower portion of the two poles, two sinking grooves 1012 are respectively configured at the lower portion of the cover plate body 10 for the two poles, the poles are mounted through pole mounting holes on the cover plate body 10, the two pole bases 113 are received in the respective sinking grooves 1012, and the lower surface of the pole base 113 can be used for electrical connection with a cell tab in a power battery. Meanwhile, the middle part of the pole is provided with an annular clamping groove; as shown in fig. 1, when the pole is inserted in place, the lower side surface of the ring-shaped slot is flush with the upper surface of the power battery cover plate, and the fastening member 115 is fastened in the ring-shaped slot, so that the positive pole 111 and the negative pole 112 are fixed on the power battery cover plate.
As shown in fig. 2 and fig. 3, in order to form insulation between the poles and the cover plate body 10, an insulating sleeve 114 is sleeved on the two poles. The insulating sleeve 114 is made of an insulating material such as rubber, and is sleeved on the post to cover the circumferential surface of the lower half part of the post and the upper surface of the post base 113, so that insulation and sealing between the post and the cover plate body 10 can be formed.
Based on the above-mentioned arrangement of the pole and the cooling tube 21, the cooling fluid inlet 211 and the cooling fluid outlet 212 of the cooling tube 21 are arranged parallel to the positive pole 111 or the negative pole 112 and open upward, so as to facilitate the connection and installation of the cooling tube 21 to an external liquid supply device.
In order to further improve the safety of the power battery, as shown in fig. 3, a protection component is further disposed on the power battery cover plate, and the protection component can receive the extra pressure inside the power battery with the power battery cover plate, so as to form conduction between the negative pole 112 and the cover plate body 10.
specifically, the protection assembly includes a pole pressing plate 141 which is in communication with the negative pole 112 and is arranged in an insulating manner with respect to the cover plate body 10, and a protection unit which is in communication with the cover plate body 10 and can be in communication with the pole pressing plate 141 due to deformation under pressure. The pole pressing plate 141 is sleeved on the negative pole 112, and an insulating gasket 143 is fixedly arranged between the pole pressing plate 141 and the cover plate body 10. The pole pressing plate 141 and the insulating gasket 143 are fixed to the cover plate body 10, and may be bonded or screwed. As shown in fig. 1, the pole clamp 141 and the insulating spacer 143 may be screw-fixed to the cover plate body 10 by means of clamp mounting holes 1411 configured on the pole clamp and the insulating spacer.
By adopting the arrangement, when the interior of the power battery is abnormally boosted, the negative pole 112 of the power battery can be timely connected in a grounding manner by virtue of the grounding arrangement of the cover plate of the power battery, so that the overall safety protection effect of the power battery pack is enhanced. By providing an insulating gasket 143 between the cap body 10 and the post holder 141, the overall sealing performance of the guard assembly is improved, and effective isolation insulation between the cap body 10 and the negative post 112 is formed. The pole pressing plate 141 and the protection unit are arranged to isolate the cover plate body 10 from the cathode pole 112 in the normal state of the power battery and conduct the cover plate body and the cathode pole 112 in the abnormal state, so that the whole protection assembly is compact in structure and convenient to technically realize.
In addition, a mounting hole 1013 is formed on the cover plate body 10, a through hole 1431 penetrating the mounting hole 1013 is formed on the insulating gasket 143, the protection unit includes a protection sheet 142 fixedly disposed in the mounting hole 1013, and the protection sheet 142 can move in the mounting hole 1013 due to the additional pressure deformation of the power battery and pass through the through hole 1431 to abut against the pole pressing plate 141. Preferably, the protection sheet 142 is made of an elastically deformable metal sheet, and as shown in fig. 4, the protection sheet 142 includes a base 1421 fixed in the mounting hole 1013 on the cover body 10, and a protrusion 1422 integrally formed in the middle of the upper surface of the base 1421. Due to the design, timely response to abnormal conditions inside the battery can be well realized, and the assembly of the protection component is convenient; however, the protection sheet 142 is constructed as two functional parts, namely the base 1421 and the protrusion 1422, so that the protection sheet 142 is conveniently constructed integrally, and the assembly and performance of the protection sheet are facilitated.
By adopting the power battery cover plate of the embodiment, the explosion-proof sheet 15 and the cooling pipe 21 are integrally arranged on the power battery cover plate, so that the operation temperature of the power battery can be reduced, and the abnormal conditions in the power battery can be responded in time, and the operation stability and the safety of the power battery can be improved.
Example two
the embodiment relates to a power battery, and the power battery is provided with a power battery cover plate as described in the first embodiment.
The power battery of this embodiment is a square battery, and includes a housing and an electric core installed in the housing, and a tab of the electric core is electrically connected to the positive pole 111 or the negative pole 112 of the battery cover plate. For example, a welded connection may be used.
And after the battery core is completely installed and the connection between the pole lugs and the pole columns is completed, assembling the battery cover plate at the opening at the upper part of the shell to complete the packaging of the battery. The battery cover plate can be packaged by using the existing mature technology, which is not described in detail herein.
Assembling a plurality of power batteries in a shell assembly of a power battery pack in a group, and configuring a circulating cooling system for the power battery pack; the cooling pipe 21 of the power battery is connected in series or in parallel into the circulating cooling system through the cooling liquid inlet 211 and the cooling liquid outlet 212, so that the cooling protection condition of the power battery can be achieved.
The power battery of the embodiment has the configuration of cooling the power battery, and is favorable for the stability and safety of the power battery in operation.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. a power battery cover plate is characterized by comprising:
The cover plate comprises a cover plate body (10), wherein the cover plate body (10) is square, a positive pole column (111) and a negative pole column (112) are fixedly arranged on the cover plate body (10), an installation groove (101) located between the positive pole column (111) and the negative pole column (112) is constructed on the upper surface of the cover plate body (10), an explosion-proof sheet installation hole (1011) is constructed on the bottom surface of the installation groove (101), and an explosion-proof sheet (15) is arranged on the cover plate installation hole (1011);
The cover plate pressing block (12) is fixedly arranged in the mounting groove (101) and can form pressing and fixing on the explosion-proof sheet (15), and a through hole (121) arranged corresponding to the explosion-proof sheet (15) is formed in the cover plate pressing block (12);
A fixing groove (13) configured on the upper surfaces of the cover plate body (10) and the cover plate pressing block (12) and located between the positive pole column (111) and the negative pole column (112);
And the cooling pipe (21) is fixedly arranged in the fixed groove (13), the cooling pipe (21) is provided with a cooling liquid inlet (211) and a cooling liquid outlet (212), and the cooling liquid inlet (211) and the cooling liquid outlet (212) can be respectively communicated with an external liquid supply device to form circulating circulation of cooling liquid in the cooling pipe (21).
2. The power battery cover plate of claim 1, wherein: a liquid injection hole (122) is formed through the cover plate body (10) and the cover plate pressing block (12).
3. The power battery cover plate of claim 1, wherein: the cooling pipe (21) is configured in a figure of 8.
4. The power battery cover plate of claim 3, wherein: the cooling liquid inlet (211) and the cooling liquid outlet (212) are arranged in parallel with the positive pole (111).
5. the power cell cover plate according to any one of claims 1 to 4, wherein: and a protection component is further arranged on the power battery cover plate, and the protection component can bear the extra pressure inside the power battery provided with the power battery cover plate to form the conduction between the negative pole column (112) and the cover plate body (10).
6. the power battery cover plate according to claim 5, wherein: the protection assembly comprises a pole pressing plate (141) which is communicated with the negative pole column (112) and is arranged in an insulating mode with the cover plate body (10), and a protection unit which is communicated with the cover plate body (10) and can be communicated with the pole pressing plate (141) due to compression deformation.
7. The power battery cover plate of claim 6, wherein: the pole pressing plate (141) is sleeved on the negative pole (112), and an insulating gasket (143) is fixedly arranged between the pole pressing plate (141) and the cover plate body (10).
8. The power battery cover plate of claim 7, wherein: the bottom surface of the cover plate body (10) is provided with a mounting hole (1013), the insulating gasket (143) is provided with a via hole (1431) communicated with the mounting hole (1013), the protection unit comprises a protection sheet (142) fixedly arranged in the mounting hole (1013), and the protection sheet (142) can be deformed by additional pressure of the power battery to be abutted against the pole pressing plate (141).
9. The power battery cover plate of claim 8, wherein: the protective sheet (142) comprises a base body (1421) fixedly arranged on the cover plate body (10) and a protrusion (1422) integrally formed in the middle of the upper surface of the base body (1421).
10. a power battery, characterized by: the power battery cover plate as claimed in any one of claims 1 to 9 is mounted on the power battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920846107.6U CN209747565U (en) | 2019-06-05 | 2019-06-05 | Power battery cover plate and power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920846107.6U CN209747565U (en) | 2019-06-05 | 2019-06-05 | Power battery cover plate and power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209747565U true CN209747565U (en) | 2019-12-06 |
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ID=68723479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920846107.6U Active CN209747565U (en) | 2019-06-05 | 2019-06-05 | Power battery cover plate and power battery |
Country Status (1)
| Country | Link |
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| CN (1) | CN209747565U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024094914A1 (en) * | 2022-11-01 | 2024-05-10 | Turun Ammattikorkeakoulu Oy | Cover element and cover unit for plurality of lids of battery array |
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2019
- 2019-06-05 CN CN201920846107.6U patent/CN209747565U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024094914A1 (en) * | 2022-11-01 | 2024-05-10 | Turun Ammattikorkeakoulu Oy | Cover element and cover unit for plurality of lids of battery array |
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