CN219144358U - Battery pack - Google Patents

Battery pack Download PDF

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Publication number
CN219144358U
CN219144358U CN202223440093.9U CN202223440093U CN219144358U CN 219144358 U CN219144358 U CN 219144358U CN 202223440093 U CN202223440093 U CN 202223440093U CN 219144358 U CN219144358 U CN 219144358U
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China
Prior art keywords
plate
plate body
side plate
battery cell
cell group
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Application number
CN202223440093.9U
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Chinese (zh)
Inventor
庄文举
邓杰
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Xinwangda Power Technology Co ltd
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Sunwoda Electric Vehicle Battery Co Ltd
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Priority to CN202223440093.9U priority Critical patent/CN219144358U/en
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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 discloses a battery pack belongs to new energy technical field. The battery pack includes: the battery pack comprises a first plate body, a first side plate, a second plate body and a plurality of battery cell groups; a first liquid cooling part for accommodating and replacing a heat medium is arranged in the first plate body; the first side plate and the second side plate are respectively arranged in the second direction D with the first plate body 2 Is connected with two ends of the connecting rod; the second plate body is arranged between the first side plate and the second side plate, is perpendicular to the first plate body and is integrally formed, and a second liquid cooling part for accommodating and replacing a heat medium is arranged in the second plate body; the first plate body, the first side plate, the second side plate and the second plate body are separated along the second direction D 2 The battery cell module comprises a plurality of accommodating cavities which are arranged, wherein each accommodating cavity is internally provided with a battery cell group; the battery cell group is in the second direction D 2 At least one of the two sides of the upper part is adhered to a second plate body. The battery pack is characterized in that a first liquid cooling part is arranged in a first plate body, and a second liquid cooling part is arranged in a second plate body, so that a multi-surface cooling function is realized.

Description

Battery pack
Technical Field
The application belongs to the technical field of new energy, and particularly relates to a battery pack.
Background
The traditional power battery module grouping mode comprises a cavity formed by a mode of fixing left and right end plates and side plates or a mode of welding or riveting the end plates and the left and right side plates, a mode of grouping the battery cells is carried out, then the modules are placed on a second plate body in a battery box body, and the modules are fixed on a bottom plate of the battery system box body through fixing holes of the end plates.
Along with the increasing requirements of the whole vehicle enterprises on battery enterprises, such as cost, productivity, light weight, integration and the like, the battery enterprises are required to be simpler in the module design process, the number of parts of the modules and processing links are reduced, so that the production efficiency is improved, and the productivity is improved to achieve the purpose of reducing the cost.
Disclosure of Invention
The utility model aims to: the utility model provides a battery pack, which can effectively simplify the structural design, so as to solve the problem of low heat conduction efficiency of the traditional battery pack, and realize multi-face cooling, higher integration and lighter overall weight.
The technical scheme is as follows:
the present utility model provides a battery pack comprising: the battery pack comprises a first plate body, a first side plate, a second plate body and a plurality of battery cell groups; a first liquid cooling part for accommodating and replacing a heat medium is arranged in the first plate body; said firstA side plate and a second side plate respectively arranged in a second direction D with the first plate body 2 Is connected with two ends of the connecting rod; the second plate body is arranged between the first side plate and the second side plate, is perpendicular to the first plate body and is integrally formed, and a second liquid cooling part for containing and replacing a heat medium is arranged in the second plate body; the first plate body, the first side plate, the second side plate and the second plate body are separated along the second direction D 2 The plurality of accommodating cavities are arranged, and each accommodating cavity is internally provided with a row of battery cell groups; the battery cell group is in the second direction D 2 At least one of the two sides of the upper part is adhered to one of the second plate bodies.
In some embodiments, the second plate body is provided with one, the battery cell group is provided with two rows, the first plate body, the first side plate and the second plate body enclose to form a first accommodating cavity, the first plate body, the second side plate and the second plate body enclose to form a second accommodating cavity, and a row of battery cell groups are arranged in each of the first accommodating cavity and the second accommodating cavity; the battery cell group arranged in the first accommodating cavity is in the second direction D 2 One side of the upper part is connected with the first side plate, and the other side of the upper part is adhered to the second plate body; the battery cell group arranged in the second accommodating cavity is in a second direction D 2 One side of the upper part is connected with the second side plate, and the other side of the upper part is in fit with the second plate body.
In some embodiments, the second plate has N, the cell group has n+1 rows, N > 1 and is an integer, and N of the second plates are between the first side plate and the second side plate and along the second direction D 2 Sequentially and alternately arranged; the first plate body, the first side plate, the second side plate and N second plate bodies are separated along a second direction D 2 The device comprises n+1 third accommodating cavities, wherein each third accommodating cavity is internally provided with a row of battery cell groups; in a second direction D 2 One side of the battery cell group in the third accommodating cavity of the first bit sequence is connected with the first side plate, the other side is in fit with one of the second plate bodies, and one side of the battery cell group in the third accommodating cavity of the (n+1) bit sequence is arrangedThe other side of the first plate body is in fit with one second plate body; in a second direction D 2 And (3) respectively attaching two sides of the battery cell group in the third accommodating cavity of the M-th bit sequence to one second plate, wherein M is more than 1 and less than N+1, and M is an integer.
In some embodiments, the first side plate is in the second direction D 2 A plurality of first mounting parts are convexly arranged in the opposite direction, and the second side plate is arranged along the second direction D 2 A plurality of second mounting parts are convexly arranged, and a plurality of first mounting parts are arranged along the first direction D 1 The second mounting parts are arranged along the first direction D 1 And (5) arrangement.
In some embodiments, the plurality of first mounting portions and the plurality of second mounting portions are in a second direction D 2 The upper parts are staggered.
In some embodiments, the container further comprises a first guide for guiding the container in a first direction D 1 Two first end plates for limiting, wherein the two first end plates are arranged in the accommodating cavity and along a first direction D 1 Arranged at intervals, the first end plate is arranged in the second direction D 2 Is connected with at least one of the two sides of the second plate body.
In some embodiments, the first end plate positions disposed in adjacent two of the receiving cavities correspond.
In some embodiments, the device further comprises a device for positioning the plurality of receiving chambers in a first direction D 1 Two second end plates for limiting, and the two second end plates are arranged along the first direction D 1 The second end plate and any one of the second plate bodies are provided with insertion holes at intervals, the other one of the second end plate and the second plate body is inserted into the insertion holes, and the second end plate is arranged in the second direction D 2 Is connected with the first side plate and the second side plate respectively.
In some embodiments, the first liquid cooling portion includes a first liquid cooling channel that is communicated with the inside of the first plate body, and a first liquid inlet pipe and a first liquid outlet pipe are disposed on the first plate body, and the first liquid inlet pipe and the first liquid outlet pipe are respectively communicated with the first liquid cooling channel; the second liquid cooling part comprises a second liquid cooling channel communicated with the inside of the second plate body, a second liquid inlet pipe and a second liquid outlet pipe are arranged on the second plate body, and the second liquid inlet pipe and the second liquid outlet pipe are respectively communicated with the second liquid cooling channel.
In some embodiments, the cell group includes a plurality of cells in the first direction D 1 The battery cell comprises a plurality of arranged battery cells, wherein a heat insulation pad is arranged between two adjacent battery cells, and the heat insulation pad is arranged in a frame shape.
The beneficial effects are that: compared with the prior art, the battery pack of the utility model comprises: the battery pack comprises a first plate body, a first side plate, a second plate body and a plurality of battery cell groups; a first liquid cooling part for accommodating and replacing a heat medium is arranged in the first plate body; the first side plate and the second side plate are respectively arranged in the second direction D with the first plate body 2 Is connected with two ends of the connecting rod; the second plate body is arranged between the first side plate and the second side plate, is perpendicular to the first plate body and is integrally formed, and a second liquid cooling part for accommodating and replacing a heat medium is arranged in the second plate body; the first plate body, the first side plate, the second side plate and the second plate body are separated along the second direction D 2 The battery cell module comprises a plurality of accommodating cavities which are arranged, wherein each accommodating cavity is internally provided with a battery cell group; the battery cell group is in the second direction D 2 At least one of the two sides of the upper part is adhered to a second plate body. This battery package establishes first liquid cooling portion in first plate body, establishes second liquid cooling portion in the second plate body to first plate body and second plate body integrated into one piece set up, have reduced the quantity of liquid inlet and liquid outlet and have realized multiaspect cooling function, and the increase of quantity of second plate body thereupon, and the cooling structure heat dissipation that first plate body and second plate body integrated into one piece set up is more efficient, has effectively solved the problem that battery package heat conduction efficiency is low.
Drawings
Technical solutions and other advantageous effects of the present application will be made apparent from the following detailed description of specific embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is an assembly schematic diagram of a battery pack according to an embodiment of the present disclosure;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is an exploded view of FIG. 1;
FIG. 4 is an exploded view of FIG. 1 at another view angle;
FIG. 5 is an exploded view of FIG. 1 at another view angle;
FIG. 6 is a schematic view of the electrical first plate, second plate and first end plate of FIG. 3;
FIG. 7 is a cross-sectional view of FIG. 6;
reference numerals, 100-first plate body, 110-first liquid cooling part, 120-first liquid inlet pipe, 130-first liquid outlet pipe, 140-first contact surface, 200-first side plate, 210-first mounting part, 300-second side plate, 310-second mounting part, 400-second plate body, 410-second liquid cooling part, 420-second liquid inlet pipe, 430-second liquid outlet pipe, 440-second contact surface, 500-cell group, 510-cell, 520-bottom wall, 530-side wall, 600-containing cavity, 610-first containing cavity, 620-second containing cavity, 700-first end plate.
Detailed Description
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. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more features.
The following disclosure provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application.
Referring to fig. 1 to 3, a battery pack according to an embodiment of the present utility model includes: the first plate body 100, the first side plate 200, the second side plate 300, the second plate body 400 and a plurality of cell groups 500; a first liquid cooling portion 110 for accommodating a heat medium is provided in the first plate body 100; the first side plate 200 and the second side plate 300 are respectively in the second direction D with the first plate 100 2 Is connected with two ends of the connecting rod; the second plate 400 is disposed between the first side plate 200 and the second side plate 300, the second plate 400 is perpendicular to the first plate 100 and is integrally formed, and a second liquid cooling portion 410 for accommodating a heat medium is disposed in the second plate 400; the first plate body 100, the first side plate 200, the second side plate 300 and the second plate body 400 are partitioned along the second direction D 2 A plurality of accommodating chambers 600 are arranged, and each accommodating chamber 600 is internally provided with one cell group 500; the battery cell 500 is in the second direction D 2 At least one of the two sides is attached to a second plate 400.
In the battery pack of the present application, the first liquid cooling portion 110 for accommodating the heat medium is provided in the first plate body 100, the second liquid cooling portion 410 for accommodating the heat medium is provided in the second plate body 400, and the first plate body 100, the first side plate 200, the second side plate 300 and the second plate body 400 are partitioned along the second direction D 2 A plurality of accommodating chambers 600 are arranged, and a cell group 500 is disposed in each accommodating chamber 600, the cell group 500 being in the second direction D 2 At least one of the two sides is attached to a second plate 400, so that when the battery cell group 500 is arranged in the accommodating cavity 600, electricity can be realizedWhen the core group 500 contacts with the first liquid cooling portion 110, the heat exchange medium of the first liquid cooling portion 110 can cool the core group 500, and the heat exchange medium of the second liquid cooling portion 410 of the second plate body 400 contacting with the core group 500 can cool the core group 500, so that the battery pack in the embodiment of the application can realize multi-surface cooling of the core group 500, and the integration degree of the battery pack is higher. Conversely, if the first plate 100 lacks the design of the first liquid cooling portion 110, and/or if the second plate 400 lacks the design of the second liquid cooling portion 410, the purpose of simultaneously cooling the plurality of cells 500 located in the accommodating cavity 600 by using the first plate 100 and the second plate 400 cannot be achieved, and thus good integration cannot be achieved. Therefore, in the embodiment of the present application, the plurality of accommodating cavities 600 are separated from the first plate body 100, the first side plate 200, the second side plate 300 and the second plate body 400, and the effect of multi-surface cooling the battery cell group 500 by using the accommodating cavities 600 is obvious, so that the heat conduction efficiency of the battery pack can be improved. The battery pack has simpler and more concise overall structure, reduces the number of parts of the overall structure and the technological requirements, meets the requirements of light structure and integration, and can achieve the purposes of improving the production efficiency, improving the productivity and reducing the cost.
The battery cell 500 in the embodiment of the application includes a bottom wall 520 and opposite side walls 530, the first board body 100 includes a first contact surface 140, each second board body 400 includes a second contact surface 440, each second contact surface 440 is in line contact with the first contact surface 140, the bottom wall 520 of the battery cell group 500 is disposed on the first contact surface 140, and the side walls 530 of the battery cell group 500 are disposed on the second contact surface 440. The battery pack cools the bottom wall 520 of the battery cell 500 by the first liquid cooling unit 110, cools the side wall 530 of the battery cell 500 by the second liquid cooling unit 410, and can realize a double-sided cooling or multi-sided cooling function of the battery cell 500 by the first liquid cooling unit 110 of the first plate 100 and the second liquid cooling unit 410 of the second plate 400.
As shown in fig. 3, in some embodiments, the second plate 400 is provided with one, the battery cell group 500 is provided with two rows, and the first plate 100, the first side plate 200 and the second plate 400 are enclosed to form a firstThe accommodating cavity 610, the first plate body 100, the second side plate 300 and the second plate body 400 are enclosed to form a second accommodating cavity 620, and the first accommodating cavity 610 and the second accommodating cavity 620 are internally provided with a battery cell group 500; the cell group 500 disposed in the first receiving cavity 610 is in the second direction D 2 One side of the upper part is connected with the first side plate 200, and the other side is attached to the second plate 400; the cell group 500 disposed in the second receiving chamber 620 is in the second direction D 2 One side of the upper part is connected with the second side plate 300, and the other side is attached to the second plate 400. According to the embodiment of the application, the second plate 400 is arranged to be one, so that two accommodating cavities 600 are separated by the first plate 100, the first side plate 200, the second side plate 300 and the second plate 400, the two accommodating cavities 600 are respectively a first accommodating cavity 610 and a second accommodating cavity 620, one side of the battery cell group 500 in the first accommodating cavity 610 is attached to the second plate 400, the side of the battery cell group 500 is cooled by the second plate 400, and the battery cell group 500 in the first accommodating cavity 610 is attached to the first plate 100, so that the battery cell group 500 is cooled by the first plate 100; similarly, one side of the battery cell group 500 in the second accommodating cavity 620 is attached to the second plate 400, so that the side of the battery cell group 500 is cooled by the second plate 400, and the first plate 100 can cool the surface contacting with the battery cell group 500 in the second accommodating cavity 620. Therefore, when the number of the second plates 400 is one and the number of the receiving chambers 600 is two, the multi-surface cooling function of the battery cell group 500 can be achieved by using the first plates 100 and the second plates 400.
In the embodiments of the present application, the first side plate 200, the second side plate 300, the first plate body 100, and the second plate body 400 are of a unitary structure, and further specifically are unitary extrusions.
In the present embodiment, the first liquid cooling portion 110 is integrated in the first plate body 100, the second liquid cooling portion 410 is integrated in the second plate body 400, and the first liquid cooling portion 110 and the second liquid cooling portion 410 form a liquid cooling subsystem, so as to achieve the purpose of integrating the liquid cooling subsystem in the first plate body 100 and the second plate body 400.
In the embodiment of the present application, the battery cell group 500 includes a bottom wall 520 and a side wall 530 disposed opposite to the bottom wall, the first plate body 100 includes a first contact surface 140 and a first liquid cooling portion 110 for containing a heat medium, two adjacent second plate bodies 400 are disposed at intervals, each second plate body 400 is connected with the first plate body 100, each second plate body 400 includes a second contact surface 440 and a second liquid cooling portion 410 for containing a heat medium, and the second liquid cooling portion 410 is disposed in the second plate body 400. The battery pack utilizes the first liquid cooling part 110 to realize the cooling of the bottom wall 520 of the battery cell group 500, and utilizes the second liquid cooling part 410 to realize the cooling of the side wall 530 of the battery cell group 500, thereby realizing the double-sided cooling or multi-sided cooling function of the battery cell group 500, having simpler and more concise overall structure, reducing the number of parts and the technological requirements of the overall structure, meeting the requirements of light-weight and integration of the structure, being capable of realizing the purposes of improving the production efficiency, improving the productivity and reducing the cost.
Further, in other embodiments, the difference from the above embodiments is that the number of the second plates 400 is not set to one, the second plates 400 are provided with N, and the cell groups 500 are along the second direction D 2 There are n+1 rows, N > 1 and is an integer, N second plate bodies 400 are arranged between the first side plate 200 and the second side plate 300 along the second direction D 2 Sequentially and alternately arranged; the first side plate 200, the N second plate bodies 400, and the second side plate 300 are along the second direction D 2 Sequentially arranged and separated from the first plate 100 along the second direction D 2 N+1 third accommodating chambers arranged, wherein each third accommodating chamber is internally provided with a cell group 500; in a second direction D 2 One side of the battery cell group 500 in the third accommodating cavity of the first order is connected with the first side plate 200, the other side is attached to one second plate 400, and the second liquid cooling part 410 in the second plate 400 cools one side of the battery cell group 500 attached to the second liquid cooling part; one side of the battery cell group 500 in the third accommodating cavity of the n+1th bit sequence is connected with the second side plate 300, the other side is attached to a second plate 400, and the second plate 400 cools one side of the battery cell group 500 attached to the second plate 400; in a second direction D 2 The two sides of the battery cell group 500 in the third accommodating cavity of the M-th bit sequence are respectively attached to a second plate 400The second plate 400 at two sides of the battery cell group 500 cools the corresponding two sides of the battery cell group 500 respectively, wherein M is more than 1 and less than N+1, and M is an integer; in addition, the first board body 100 is attached to the battery cell group 500 in each third accommodating cavity, so that the first board body 100 can cool the side, attached to the first board body 100, of the battery cell group 500.
Continuing to refer to FIG. 2, in some embodiments, the first side panel 200 is oriented in the second direction D 2 A plurality of first mounting portions 210 are protruded in the opposite direction, and the second side plate 300 is along the second direction D 2 A plurality of second mounting portions 310 are provided in a protruding manner, and a plurality of first mounting portions 210 extend along a first direction D 1 The plurality of second mounting portions 310 are arranged along the first direction D 1 And (5) arrangement. The first mounting portion 210 and the second mounting portion 310 are used for being connected with a battery case, so as to fix the battery cell group 500 disposed in the first board 100, the first side board 200, the second side board 300 and the second board 400.
Further, in some embodiments, the plurality of first mounting portions 210 and the plurality of second mounting portions 310 are in the second direction D 2 The first mounting portions 210 and the second mounting portions 310 are staggered, so that the first direction D of the battery pack can be increased 1 I.e. space utilization in the width direction.
In some embodiments, the battery pack further includes a housing for each of the receiving chambers 600 in the first direction D 1 Two first end plates 700 for limiting, wherein the two first end plates 700 are arranged in the accommodating cavity 600 and along the first direction D 1 Spaced apart, the first end plate 700 is disposed in the second direction D 2 Is connected to a second plate 400. The first plate body 100 is bonded to the first end plate 700 by welding, riveting or structural adhesive, and the second plate body 400 is bonded to the first end plate 700 by welding, riveting or structural adhesive. Preferably, the second plate body 400 and the first plate body 100 are both connected to the first end plate 700 by a heat conductive structural adhesive. In some embodiments, as shown in fig. 3, the first end plate 700 disposed within adjacent two receiving cavities 600 corresponds in position. That is, the first receiving chamber 610 is along the first direction D 1 Two first end plates 700 are arranged at intervals to limit the battery cell group 500, and the second accommodating cavity 620 is arranged along the first direction D 1 Two first end plates 700 are disposed at intervals to limit the battery cell group 500.
In some embodiments, the battery pack in embodiments of the present application further includes a housing for accommodating the plurality of cavities 600 in the first direction D 1 Two second end plates (not shown) for limiting the position thereof along the first direction D 1 At intervals, any one of the second end plate and the second plate body 400 is provided with an inserting hole (not shown), the other one of the second end plate and the second plate body 400 is inserted into the inserting hole, and the second end plate is arranged in the second direction D 2 Is connected to the first side plate 200 and the second side plate 300, respectively. That is, the insertion holes may be independently provided only on the second plate body 400, the first end plate 700 is inserted into the insertion holes, or the insertion holes may be independently provided only on the first end plate 700, and the second plate body 400 is inserted into the insertion holes.
In the embodiment of the present utility model, the first end plate 700 does not play a role in fixing, and the first end plate 700 may satisfy the mechanical strength, and the first end plate 700 may be weakened in an appropriate amount, so as to achieve the light weight of the battery pack.
Referring to fig. 2, in some embodiments, the first liquid cooling portion 110 includes a first liquid cooling channel connected to the inside of the first plate body 100, the first plate body 100 is provided with a first liquid inlet pipe 120 and a first liquid outlet pipe 130, and the first liquid inlet pipe 120 and the first liquid outlet pipe 130 are respectively connected to the first liquid cooling channel; the second liquid cooling portion 410 includes a second liquid cooling channel connected to the inside of the second plate 400, and the second plate 400 is provided with a second liquid inlet pipe 420 and a second liquid outlet pipe 430, where the second liquid inlet pipe 420 and the second liquid outlet pipe 430 are respectively connected to the second liquid cooling channel. The first plate body 100, the first liquid inlet pipe 120 and the first liquid outlet pipe 130 are integrally formed, and the second plate body 400, the second liquid inlet pipe 420 and the second liquid outlet pipe 430 are integrally formed. The first liquid cooling channel and the second liquid cooling channel are used for containing and replacing the heat medium. The first liquid inlet pipe 120 and the first liquid outlet pipe 130 are integrated on the first plate body 100, and the second liquid inlet pipe 420 and the second liquid outlet pipe 430 are integrated on the second plate body 400, so that the structures of the first liquid cooling part 110 and the second liquid cooling part 410 are simplified.
In the embodiment of the application, the electric core group 500 and the second plate body 400 are connected by adopting the heat conduction structural adhesive, and the electric core group 500 and the first plate body 100 are connected by adopting the heat conduction structural adhesive, so that the fixing and structural support of the electric core group 500 by the first plate body 100 and the second plate body 400 can be realized, the heat conduction effect of the electric core group 500 can be realized, the temperature rise and the temperature difference of the electric core group 500 in the use process are reduced, and the first side plate 200, the second side plate 300 and the second plate body 400 in the middle all play the role of a reinforcing structural beam.
It should be further noted that the cell groups 500 in the embodiments of the present application each include a first direction D 1 The plurality of electric cores 510 are arranged, and a heat insulation pad is arranged between two adjacent electric cores 510 and is arranged in a frame shape.
The battery pack of the present utility model is constructed such that the first liquid cooling part 110 for receiving the heat medium is provided in the first plate body 100, the second liquid cooling part 410 for receiving the heat medium is provided in the second plate body 400, and the first plate body 100, the first side plate 200, the second side plate 300 and the second plate body 400 are partitioned in the second direction D 2 A plurality of accommodating chambers 600 are arranged, and a cell group 500 is disposed in each accommodating chamber 600, the cell group 500 being in the second direction D 2 At least one of the two sides is attached to a second plate 400, so that when the battery cell 500 is arranged inside the accommodating cavity 600, the battery cell 500 can be cooled by the heat exchange medium of the first liquid cooling part 110 when the battery cell 500 contacts with the first liquid cooling part 110, and the battery cell 500 can be cooled by the heat exchange medium of the second liquid cooling part 410 of the second plate 400 contacting with the battery cell 500, and then the battery pack in the embodiment of the application can be used for realizing multi-surface cooling of the battery cell 500, so that the battery pack has higher integration degree. In the embodiment of the application, a plurality of accommodating cavities 600 are separated from the first plate body 100, the first side plate 200, the second side plate 300 and the second plate body 400, and the first plate body and the second plate body are integrally formed, so that the number of liquid inlets and liquid outlets is reduced to realize a multi-surface cooling function, the number of the second plate bodies is increased, the cooling structure integrally formed by the first plate body and the second plate body is more efficient in heat dissipation, and the problem of low heat conduction efficiency of the battery pack is effectively solved. The battery pack has simpler and more concise overall structure, and reduces the number of the battery packsThe number of parts and the technological requirements of the whole structure meet the requirements of light weight and integration of the structure, and the purposes of improving the production efficiency, improving the productivity and reducing the cost can be achieved.
The above description has been made in detail on the battery pack provided in the embodiment of the present application, and specific examples are applied in the present application to illustrate the principles and embodiments of the present application, and the above description of the embodiment is only used to help understand the technical solution and core ideas of the present application; those of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. A battery pack, comprising: the battery comprises a first plate body (100), a first side plate (200), a second side plate (300), a second plate body (400) and a plurality of battery cell groups (500);
a first liquid cooling part (110) for accommodating and replacing a heat medium is arranged in the first plate body (100);
the first side plate (200) and the second side plate (300) are respectively arranged in the second direction D with the first plate body (100) 2 Is connected with two ends of the connecting rod;
the second plate body (400) is arranged between the first side plate (200) and the second side plate (300), the second plate body (400) is perpendicular to the first plate body (100) and is integrally formed, and a second liquid cooling part (410) for containing a heat exchange medium is arranged in the second plate body (400);
the first plate body (100), the first side plate (200), the second side plate (300) and the second plate body (400) are separated along the second direction D 2 A plurality of accommodating cavities (600) arranged, wherein each accommodating cavity (600) is internally provided with one cell group (500); the battery cell group (500) is in the second direction D 2 At least one of the two sides of the upper part is attached to one second plate body (400).
2. The battery pack according to claim 1, wherein one second plate body (400) is provided, the battery cell group (500) is provided with two rows, the first plate body (100), the first side plate (200) and the second plate body (400) are enclosed to form a first accommodating cavity (610), the first plate body (100), the second side plate (300) and the second plate body (400) are enclosed to form a second accommodating cavity (620), and a row of the battery cell group (500) is arranged in each of the first accommodating cavity (610) and the second accommodating cavity (620);
the battery cell group (500) arranged in the first accommodating cavity (610) is in the second direction D 2 One side of the upper part is connected with the first side plate (200), and the other side is attached to the second plate body (400);
the battery cell group (500) arranged in the second accommodating cavity (620) is in the second direction D 2 One side of the upper part is connected with the second side plate (300), and the other side is attached to the second plate body (400).
3. The battery pack according to claim 1, wherein the second plate (400) has N, the cell group (500) has n+1 rows, N > 1 being an integer, and N of the second plates (400) are located between the first side plate (200) and the second side plate (300) and along the second direction D 2 Sequentially and alternately arranged;
the first plate body (100), the first side plate (200), the second side plate (300) and N second plate bodies (400) are separated along the second direction D 2 N+1 third accommodating cavities in arrangement, wherein each third accommodating cavity is internally provided with a row of battery cell groups (500);
in the second direction D 2 One side of the battery cell group (500) in the third accommodating cavity with the first bit sequence is connected with the first side plate (200), the other side of the battery cell group is in fit with one second plate body (400), one side of the battery cell group (500) in the third accommodating cavity with the n+1th bit sequence is connected with the second side plate (300), and the other side of the battery cell group is in fit with one second plate body (400);
in the second direction D 2 Counting, arranging the third of the Mth bit sequenceTwo sides of the battery cell group (500) in the accommodating cavity are respectively attached to one second plate body (400), M is more than 1 and less than N+1, and M is an integer.
4. The battery pack according to claim 1, wherein the first side plate (200) is oriented in the second direction D 2 A plurality of first mounting portions (210) are arranged in a protruding manner in the opposite direction, and the second side plate (300) is arranged along the second direction D 2 A plurality of second mounting portions (310) are convexly arranged, and a plurality of first mounting portions (210) are along a first direction D 1 A plurality of second mounting portions (310) arranged along the first direction D 1 And (5) arrangement.
5. The battery pack according to claim 4, wherein a plurality of the first mounting portions (210) and a plurality of the second mounting portions (310) are in the second direction D 2 The upper parts are staggered.
6. The battery pack according to claim 1, further comprising a housing for each of the receiving chambers (600) in a first direction D 1 Two first end plates (700) for limiting, wherein the two first end plates (700) are arranged in the accommodating cavity (600) and along the first direction D 1 Is arranged at intervals, the first end plate (700) is arranged in the second direction D 2 Is connected to one of the second plate bodies (400).
7. The battery pack according to claim 6, wherein the first end plate (700) provided in the adjacent two accommodation chambers (600) corresponds in position.
8. The battery pack according to claim 1, further comprising a plurality of receiving chambers (600) for receiving the battery pack in a first direction D 1 Two second end plates for limiting, and the two second end plates are arranged along the first direction D 1 Is arranged at intervals, any one of the second end plate and the second plate body (400) is provided with an inserting hole, and the other one of the second end plate and the second plate body (400) is provided with an inserting holeThe second end plate is inserted into the insertion hole in the second direction D 2 Is connected to the first side plate (200) and the second side plate (300), respectively.
9. The battery pack according to claim 1, wherein the first liquid cooling portion (110) includes a first liquid cooling channel that is communicated with the inside of the first plate body (100), a first liquid inlet pipe (120) and a first liquid outlet pipe (130) are disposed on the first plate body (100), and the first liquid inlet pipe (120) and the first liquid outlet pipe (130) are respectively communicated with the first liquid cooling channel;
the second liquid cooling part (410) comprises a second liquid cooling channel communicated with the inside of the second plate body (400), a second liquid inlet pipe (420) and a second liquid outlet pipe (430) are arranged on the second plate body (400), and the second liquid inlet pipe (420) and the second liquid outlet pipe (430) are respectively communicated with the second liquid cooling channel.
10. The battery pack of claim 1, wherein the cell stack (500) includes a first direction D 1 And a plurality of arranged electric cores (510), wherein heat insulation pads are arranged between two adjacent electric cores (510), and are arranged in a frame shape.
CN202223440093.9U 2022-12-21 2022-12-21 Battery pack Active CN219144358U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202223440093.9U CN219144358U (en) 2022-12-21 2022-12-21 Battery pack

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202223440093.9U CN219144358U (en) 2022-12-21 2022-12-21 Battery pack

Publications (1)

Publication Number Publication Date
CN219144358U true CN219144358U (en) 2023-06-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202223440093.9U Active CN219144358U (en) 2022-12-21 2022-12-21 Battery pack

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Country Link
CN (1) CN219144358U (en)

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Address after: 518000 1-2 Floor, Building A, Xinwangda Industrial Park, No. 18 Tangjianan Road, Gongming Street, Guangming New District, Shenzhen City, Guangdong Province

Patentee after: Xinwangda Power Technology Co.,Ltd.

Address before: 518107 1-2 Floor, Building A, Xinwangda Industrial Park, No. 18 Tangjianan Road, Gongming Street, Guangming New District, Shenzhen City, Guangdong Province

Patentee before: SUNWODA ELECTRIC VEHICLE BATTERY Co.,Ltd.

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