CN214203832U - Battery pack and power consumption device - Google Patents
Battery pack and power consumption device Download PDFInfo
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- CN214203832U CN214203832U CN202120353392.5U CN202120353392U CN214203832U CN 214203832 U CN214203832 U CN 214203832U CN 202120353392 U CN202120353392 U CN 202120353392U CN 214203832 U CN214203832 U CN 214203832U
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- battery pack
- battery
- insulating
- casing
- side plate
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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 application provides a battery, including group battery casing, electric core subassembly and electrically conductive piece. The battery pack shell is provided with an accommodating space. The electric core assembly comprises a plurality of electric cores stacked along a first direction, and the electric core assembly is arranged in the accommodating space. The conductive piece is electrically connected with the electric core assembly. The insulating member is disposed in the battery pack case. Along the first direction, be equipped with between group battery casing with the battery module with accommodating space intercommunication's accepting groove, electrically conductive part is located at least partially the accepting groove, the accepting groove is equipped with insulating part, insulating part be used for with electrically conductive part is fixed in the accepting groove to the internal space of rational utilization group battery casing fixes electrically conductive part, reduces electrically conductive deformation. The embodiment of the application also provides an electric device with the battery pack.
Description
Technical Field
The present disclosure relates to the field of electrochemical devices, and more particularly, to a battery pack and an electric device having the same.
Background
In the prior art, in the manufacturing process of the battery with a plurality of battery cores, the conductive piece for connecting the battery cores is easy to deform during welding and glue pouring, so that the manufacturing yield of the battery is reduced. In addition, the conductive member is usually disposed on the top of the battery, and a space is required to be reserved on the top of the battery in order to place the conductive member, which is not favorable for the miniaturization development of the battery.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present application provides a battery pack and an electric device having the battery pack, in which a receiving groove is formed in a battery pack case to receive a conductive member, and an insulating member is disposed in the receiving groove, so that the conductive member is easily fixed and deformation of the conductive member is reduced. Still form between electric core subassembly and group battery casing through piling up the orientation with the accepting groove along electric core, rational utilization group battery casing inner space is favorable to the miniaturized development of battery.
Embodiments of the present application provide a battery pack including a battery pack case, a battery pack assembly, and a conductive member. The battery pack shell is provided with an accommodating space. The electric core assembly comprises a plurality of electric cores stacked along a first direction, and the electric core assembly is arranged in the accommodating space. The conductive piece is electrically connected with the electric core assembly. The insulating member is disposed in the battery pack case. Along the first direction, be equipped with between group battery casing with the battery module subassembly with accommodating space intercommunication's accepting groove, electrically conductive part is located at least partially the accepting groove, the accepting groove is equipped with the insulating part, the insulating part be used for with electrically conductive part is fixed in the accepting groove.
In some embodiments, the insulating member is formed by impregnating resin into the battery pack and then fixing the resin. And the resin bonds and fixes the conductive piece in the accommodating groove in the curing process, so that the movement of the conductive piece in the accommodating groove is reduced.
In some embodiments, the battery cell includes a cell casing and a tab, the cell casing is provided with a sealing portion along a second direction, the tab extends out of the cell casing from the sealing portion along the second direction, the second direction is perpendicular to the first direction, when viewed from a direction opposite to the second direction, the sealing portion is located between two opposite side surfaces of the cell casing, and the accommodating groove is located between the sealing portion and the battery casing along the first direction.
In some embodiments, the battery pack case includes a first side plate and a second side plate oppositely disposed along the first direction, the receiving groove is disposed between the first side plate and the battery pack assembly, the battery pack further includes a limiting portion connected to the first side plate, and the receiving groove is formed between the limiting portion and the first side plate.
In some embodiments, the stopper portion coincides with the cell casing, as viewed in a direction opposite to the second direction. The battery pack provides space utilization of the battery pack by using a gap between the sealing part and the first side plate.
In some embodiments, the battery pack further includes an insulating plate disposed between the first side plate and the battery pack, and along a third direction, two opposite side edges of the insulating plate respectively exceed the battery pack, so that a first channel is formed between the battery pack and the battery pack case, the first channel is provided with the insulating member, and the third direction is perpendicular to the first direction and the second direction.
In some embodiments, the battery further comprises a first separator disposed between the insulating plate and the first side plate, the first separator having an area smaller than that of the insulating plate to form a second channel between the insulating plate and the battery pack case, the second channel being provided with the insulating member.
In some embodiments, along the third direction, the side edge of the insulating plate is provided with a groove, and the groove is communicated with the first channel and the second channel.
In some embodiments, the battery pack further includes a circuit board, the circuit board is provided with a plurality of connecting sheets, the tabs of the plurality of battery cells are respectively welded to the plurality of connecting sheets, and the conductive member includes a connecting portion, the connecting portion extends out of the accommodating groove and is welded to one tab of the plurality of battery cells.
Embodiments of the present application also provide an electric device including the battery pack according to the above embodiments.
The application provides a group battery is through set up the accepting groove in the group battery casing with the electrically conductive piece of holding, and is equipped with the insulating part in the accepting groove, is favorable to fixed electrically conductive piece, reduces electrically conductive deformation. Still form between electric core subassembly and group battery casing through piling up the orientation with the accepting groove along electric core, rational utilization group battery casing inner space is favorable to the miniaturized development of battery.
Drawings
Fig. 1 is a schematic structural diagram of a battery pack in an embodiment.
Fig. 2 is an exploded structural view of the battery pack shown in fig. 1.
Fig. 3 is a partial cross-sectional view of the battery pack of fig. 1 with the insulating member removed.
Fig. 4 is a plan view of the battery pack of fig. 1 with the insulating member removed.
Fig. 5 is a schematic diagram of an exploded and unfolded structure of the battery cell.
Fig. 6 is a front view of a cell assembly in the battery pack of fig. 2.
Fig. 7 is a partial structural view of a cell assembly in the battery pack shown in fig. 2.
Fig. 8 is a bottom view of the electric core assembly shown in fig. 2.
Fig. 9 is a partial structural view of the first case in the other direction in the battery pack of fig. 2.
Fig. 10 is a bottom view of the battery pack shown in fig. 1.
Fig. 11 is a schematic diagram of a powered device in one embodiment.
Description of the main element symbols:
100 battery pack
200 electric device
10 Battery pack case
101 storage tank
1011 opening
102 first channel
103 second channel
104 third channel
11 first casing
111 locating slot
12 second casing
121 projection
110 first side plate
120 second side plate
130 limit part
13 accommodating space
20 electric core component
21 electric core
211 electrode assembly
213 utmost point ear
212 cell casing
2121 accommodating part
2122 sealing part
201 first plane
202 second plane
203 first side
204 second side
205 third side of the panel
206 fourth side
22 insulating panel
221 groove
23 first spacer
24 second spacer
25 circuit board
251 connecting sheet
30 conductive element
31 connecting part
40 insulating member
50 sealing element
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
The application provides a battery pack, including group battery casing, electric core subassembly and electrically conductive piece. The battery pack shell is provided with an accommodating space. The electric core assembly comprises a plurality of electric cores stacked along a first direction, and the electric core assembly is arranged in the accommodating space. The conductive piece is electrically connected with the electric core assembly. The insulating member is disposed in the battery pack case. Along the first direction, be equipped with between group battery casing with the battery module subassembly with accommodating space intercommunication's accepting groove, electrically conductive part is located at least partially the accepting groove, the accepting groove is equipped with the insulating part, the insulating part be used for with electrically conductive part is fixed in the accepting groove.
Above-mentioned group battery is through setting up the accepting groove in the group battery casing with the electrically conductive piece of holding, and is equipped with insulating part in the accepting groove, is favorable to fixed electrically conductive piece, reduces electrically conductive deformation. Still form between electric core subassembly and group battery casing through piling up the orientation with the accepting groove along electric core, rational utilization group battery casing inner space is favorable to the miniaturized development of battery.
Some embodiments of the present application are described in detail. In the following embodiments, features of the embodiments may be combined with each other without conflict.
Referring to fig. 1 to 4, in an embodiment, a battery pack 100 includes a battery pack case 10, a battery cell assembly 20, and a conductive member 30. The battery pack assembly 20 includes a plurality of battery cells 21 stacked in a first direction, and the battery pack assembly 20 is accommodated in the battery pack case 10. The first direction is the direction indicated by arrow X in fig. 2. In the present embodiment, the first direction is the thickness direction of the battery cell 21. The battery pack further includes an insulating member 40 provided in the pack case 10. Preferably, the insulating member 40 is formed by injecting resin into the battery pack 100 and then fixing it. Along the first direction, one side of group battery casing 10 with electricity core subassembly 20 interval sets up, group battery casing 10 with be formed with accepting groove 101 between the electricity core subassembly 20. The conductive member 30 is at least partially disposed in the receiving groove 101, the receiving space 13 of the battery pack case 10 communicates with the receiving groove 101, the insulating member 40 is disposed in the receiving groove 101, and the insulating member 40 is used for fixing the conductive member 30 in the receiving groove 101. The resin bonds and fixes the conductive member 30 in the accommodating groove 101 during the curing process, so that the movement of the conductive member 30 in the accommodating groove 101 is reduced.
Referring to fig. 2, fig. 3 and fig. 5, each of the battery cells 21 includes an electrode assembly 211 and a battery cell casing 212, and a tab 213 connected to the electrode assembly 211 and led out from the battery cell casing 212. The cell case 212 includes a sealing part 2122 and a receiving part 2121 receiving the electrode assembly 211, the sealing part 2122 is disposed in the second direction, and the tab 213 extends from the sealing part 2122 in the second direction out of the cell case 212. The second direction is perpendicular to the first direction, and is a direction indicated by an arrow Z in fig. 2.
In the embodiment of the present application, the sealing part 2122 is located between opposite side surfaces of the cell casing 212 when viewed from a direction opposite to the second direction, and the receiving groove 101 is located between the sealing part 2122 and the battery pack casing 10 along the first direction. The sealing portion 2122 and the receiving portion 2121 are formed with a groove having a similar L-shape. Specifically, the cell assembly 20 includes a first plane 201, and a vertical distance between the sealing part 213 and the pack case 10 is greater than a vertical distance between the sealing part 213 and the first plane 201 in the first direction. The receiving groove 101 is disposed between the sealing portion 213 and the battery pack case 10 to reasonably utilize the space between the battery cell 21 and the battery pack case 10, so that the conductive member 30 can be partially disposed inside the battery pack case 10 without increasing the external dimension of the battery pack case 10, which is beneficial to the miniaturization of the battery pack 100.
Referring to fig. 2 to 4 and 9, the battery pack case 10 includes a first case 11 and a second case 12. The first housing 11 and the second housing 12 are connected in the first direction, and the receiving groove 101 is provided on a side of the first housing 11 facing the second housing 12. Specifically, the first casing 11 includes a first side plate 110, the second casing 12 includes a second side plate 120, the first side plate 110 and the second side plate 120 are oppositely disposed along the first direction, and the receiving slot 101 is disposed between the first side plate 110 and the plug assembly 20.
The battery pack 100 further includes a limiting portion 130 connected to the first side plate 110, and the receiving groove 101 is formed between the limiting portion 130 and the first side plate 110. Viewed in a direction opposite to the second direction (the direction of view shown in fig. 4), the stopper portion 130 coincides with the cell casing 212 of the battery cell 21 to make reasonable use of the internal space of the battery pack casing 10. Preferably, the stopper 130 is formed with a groove having a shape similar to an L at least partially formed in the sealing portion 2122 and the receiving portion 2121.
The position-limiting portion 130 is further provided with an opening 1011, and the receiving groove 101 communicates with the receiving space 13 of the battery pack case 10 through the opening 1011.
The first casing 11 is further provided with a positioning groove 111, the second casing 12 is provided with a protrusion 121 corresponding to the positioning groove 111, the protrusion 121 is accommodated in the positioning groove 111, and a sealant is arranged in the positioning groove 111 to improve the sealing performance of the battery pack casing 10.
Referring to fig. 2, 3, 4 and 6, the battery pack 100 further includes an insulating plate 22. The insulating plate 22 is disposed between the first side plate 110 and the electric core assembly 20, and in the embodiment of the present application, the insulating plate 22 may also be disposed between the second side plate 120 and the electric core assembly 20. Specifically, the core assembly 20 includes a first plane 201 and a second plane 202 oppositely disposed along a first direction, and further includes a first side 203 and a second side 204 oppositely disposed along a third direction. The third direction is perpendicular to both the first direction and the second direction. The third direction is the direction indicated by arrow Y in fig. 2. The insulating plate 22 is disposed on the first plane 201 and the second plane 202. Along the third direction, the opposite two sides of the insulating plate 22 respectively exceed the first side 203 and the second side 204 of the electric core assembly 20, so as to form a first channel 102 between the electric core assembly 20 and the battery pack case 10, the first channel 102 is provided with the insulating member 40.
The receiving groove 101 extends along the third direction, and one end of the conductive member 30 protrudes out of the battery pack case 10 along the third direction.
The battery pack 100 further includes a first spacer 23, and the first spacer 23 is disposed between the insulating plate 22 and the first side plate 110. In the first direction, the area of the first spacer 23 is smaller than that of the insulating plate 22 to form a second channel 103 between the insulating plate 22 and the battery pack case 10, the second channel 103 being provided with the insulating member 40. In the embodiment of the present application, four first spacers 23 are symmetrically disposed on both upper and lower side edges of the insulating plate 22 so as to separate the insulating plate 22 from the side walls of the battery pack case 10. It is understood that, in other embodiments, the number of the first spacers 23 may be more or less than four, and it is sufficient to separate the insulating plate 22 from the battery pack case 10, but the present application is not limited thereto.
Referring to fig. 7, in the third direction, a groove 221 is formed on a side of the insulating plate 22, and the groove 221 communicates with the first channel 102 and the second channel 103, so as to improve the fluidity of the insulating member 40 during the filling process, reduce air bubbles in the battery pack case 10, better fix the battery pack assembly 20 and the battery pack case 10, and reduce the movement of the battery pack assembly 20 in the battery pack case 10.
Referring to fig. 2 and 8, the battery pack 100 further includes a second separator 24. The second spacer 24 is provided between the battery pack assembly 20 and the battery pack case 10 along the second direction. Specifically, the cell assembly 20 includes a third side 205 and a fourth side 206 oppositely disposed along the second direction, the sealing portion 213 is located on the third side 205, and the second spacer 24 is located on the fourth side 206. In the second direction, the area of the second spacer 24 is smaller than that of the fourth side 206 to form a third channel 104 between the cell assembly 20 and the battery pack case 10, and the third channel 104 is provided with the insulating member 40 to fix the bottom of the cell assembly 20 and the bottom of the battery pack case 10.
In the embodiment of the present application, eight second spacers 24 are symmetrically disposed on the fourth side 206 to separate the bottom of the battery cell 21 from the inside of the bottom surface of the battery pack case 10. In other embodiments, the number of the second spacers 24 may be more or less than eight, and the present application is not limited thereto. Along the third direction, two sides of the third channel 104 are respectively communicated with the two first channels 102, which is beneficial to further improving the fluidity of the insulating member 40 in the pouring process.
Referring to fig. 2, fig. 3 and fig. 4 again, the battery pack 100 further includes a circuit board 25, and the circuit board 25 is disposed on the third side surface 205. The tabs 213 of the plurality of battery cells 21 are welded to the circuit board 25. The insulating member 40 covers the circuit board 25 to fix and insulate the circuit board 25 inside the pack case 10.
The circuit board 25 is further provided with a plurality of connecting sheets 251, and the plurality of tabs 213 are respectively welded to the plurality of connecting sheets 251. The conductive member 30 includes a connection portion 31. The connecting portion 31 is disposed in the battery pack case 10, and the connecting portion 31 extends out of the accommodating groove 101. The connecting portion 31 is welded to one tab 213 of a plurality of battery cells 21, so as to electrically connect the conductive element 30 to the battery cell assembly 20.
With reference to fig. 10, the battery pack 100 further includes a sealing member 50, and the sealing member 50 is adhered to the joint of the first casing 11 and the second casing 12 to further improve the sealing performance and the connection strength of the first casing 11 and the second casing 12.
Referring to fig. 11, an electric device 200 is further provided in the embodiment of the present application, where the electric device 200 includes the battery pack 100 according to the above embodiment. The electric device 200 includes, but is not limited to, an electric vehicle, an electric bus, an electric car, an energy storage device, an electric bicycle, a flying device, and the like.
Although the present application has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the present application.
Claims (10)
1. A battery pack, comprising:
a battery pack case provided with an accommodating space;
the battery core assembly comprises a plurality of battery cores which are stacked along a first direction, and the battery core assembly is arranged in the accommodating space;
the conductive piece is electrically connected with the electric core component;
the insulating piece is arranged in the battery pack shell;
the battery pack is characterized in that an accommodating groove communicated with the accommodating space is formed between the battery pack shell and the battery pack assembly along the first direction, at least part of the conductive piece is arranged in the accommodating groove, the accommodating groove is provided with the insulating piece, and the insulating piece is used for fixing the conductive piece to the accommodating groove.
2. The battery pack according to claim 1, wherein the insulating member is formed by impregnating resin into the battery pack and then fixing.
3. The battery pack of claim 2, wherein the cell includes a cell casing and a tab, the cell casing is provided with a sealing portion along a second direction, the tab extends out of the cell casing from the sealing portion along the second direction, the second direction is perpendicular to the first direction, the sealing portion is located between two opposite side surfaces of the cell casing when viewed in a direction opposite to the second direction, and the receiving groove is located between the sealing portion and the battery casing along the first direction.
4. The battery pack according to claim 3, wherein the pack case includes a first side plate and a second side plate disposed opposite to each other in the first direction, the receiving groove is provided between the first side plate and the battery pack assembly, the battery pack further includes a stopper portion connected to the first side plate, and the receiving groove is formed between the stopper portion and the first side plate.
5. The battery pack of claim 4, wherein the stopper portion coincides with the cell casing, as viewed in a direction opposite to the second direction.
6. The battery pack of claim 4, further comprising an insulating plate disposed between the first side plate and the cell assembly, wherein opposite sides of the insulating plate respectively extend beyond the cell assembly in a third direction, such that a first channel is formed between the cell assembly and the battery pack housing, the first channel being provided with the insulating member, and the third direction is perpendicular to both the first direction and the second direction.
7. The battery of claim 6, wherein said battery further comprises a first spacer disposed between said insulator plate and said first side plate, said first spacer having an area smaller than an area of said insulator plate to form a second channel between said insulator plate and said battery housing, said second channel being provided with said insulator.
8. The battery according to claim 7, wherein, in the third direction, the side of the insulating plate is provided with a groove that communicates the first channel and the second channel.
9. The battery pack of claim 1, further comprising a circuit board, wherein the circuit board is provided with a plurality of connecting plates, the tabs of the cells are respectively welded to the connecting plates, and the conductive member includes a connecting portion, the connecting portion extends out of the receiving slot and is welded to one tab of the cells.
10. An electric device, characterized in that the electric device comprises a battery pack according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120353392.5U CN214203832U (en) | 2021-02-08 | 2021-02-08 | Battery pack and power consumption device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120353392.5U CN214203832U (en) | 2021-02-08 | 2021-02-08 | Battery pack and power consumption device |
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| Publication Number | Publication Date |
|---|---|
| CN214203832U true CN214203832U (en) | 2021-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120353392.5U Active CN214203832U (en) | 2021-02-08 | 2021-02-08 | Battery pack and power consumption device |
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| CN (1) | CN214203832U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114709534A (en) * | 2022-03-31 | 2022-07-05 | 东莞新能安科技有限公司 | Battery pack and electric device |
| CN115051095A (en) * | 2022-06-30 | 2022-09-13 | 东莞新能安科技有限公司 | Electrochemical device, charging system, and power consumption device |
| CN115332696A (en) * | 2022-10-11 | 2022-11-11 | 宁德新能源科技有限公司 | Battery and electric equipment |
| WO2023051104A1 (en) * | 2021-09-28 | 2023-04-06 | 东莞新能安科技有限公司 | Connector, battery pack, and electric device |
| WO2023184454A1 (en) * | 2022-03-31 | 2023-10-05 | 东莞新能安科技有限公司 | Battery module, manufacturing method for battery module, battery pack and electric device |
-
2021
- 2021-02-08 CN CN202120353392.5U patent/CN214203832U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023051104A1 (en) * | 2021-09-28 | 2023-04-06 | 东莞新能安科技有限公司 | Connector, battery pack, and electric device |
| CN114709534A (en) * | 2022-03-31 | 2022-07-05 | 东莞新能安科技有限公司 | Battery pack and electric device |
| WO2023184454A1 (en) * | 2022-03-31 | 2023-10-05 | 东莞新能安科技有限公司 | Battery module, manufacturing method for battery module, battery pack and electric device |
| CN115051095A (en) * | 2022-06-30 | 2022-09-13 | 东莞新能安科技有限公司 | Electrochemical device, charging system, and power consumption device |
| CN115051095B (en) * | 2022-06-30 | 2024-02-13 | 东莞新能安科技有限公司 | Electrochemical device, charging system and electric equipment |
| CN115332696A (en) * | 2022-10-11 | 2022-11-11 | 宁德新能源科技有限公司 | Battery and electric equipment |
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