CN221009122U - Battery pack - Google Patents
Battery pack Download PDFInfo
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- CN221009122U CN221009122U CN202322673040.XU CN202322673040U CN221009122U CN 221009122 U CN221009122 U CN 221009122U CN 202322673040 U CN202322673040 U CN 202322673040U CN 221009122 U CN221009122 U CN 221009122U
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- battery pack
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- plate body
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- 238000001816 cooling Methods 0.000 claims description 26
- 230000003014 reinforcing effect Effects 0.000 claims description 24
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 description 5
- 230000010354 integration Effects 0.000 description 5
- 239000000110 cooling liquid Substances 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 3
- 239000012809 cooling fluid Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a battery pack, which comprises: the lower box assembly comprises a frame, a mounting cross beam and a supporting cross beam, wherein the frame is formed into an annular shape, the mounting cross beam is arranged in the frame, two ends of the mounting cross beam in the length direction are connected with the frame, the mounting cross beam comprises a first vertical plate body and a first horizontal plate body, the first vertical plate body divides the space in the frame into a first space and a second space, one end of the first horizontal plate body is connected with the lower end of the first vertical plate body and is positioned in the first space, and the supporting cross beam is arranged in the first space and is arranged at intervals with the first horizontal plate body; the BDU module is arranged in the first space and supported above the first horizontal plate body and the supporting beam, and the BDU module is connected with the first horizontal plate body and the supporting beam; the battery module is arranged in the second space. According to the battery pack, the structural strength of the battery pack can be improved, the overall safety performance of the battery pack is ensured, and the service life of the battery pack is prolonged.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a battery pack.
Background
In the running process of the new energy automobile, various complex working conditions can be met, in order to improve the capability of the battery pack for coping with various working conditions, the structural strength of the battery pack must be improved, and the overall safety performance of the battery pack is directly influenced by the design mode of the battery pack structure.
Disclosure of utility model
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the battery pack, which can improve the rigidity of the lower box assembly and the structural strength of the battery pack, so that the overall safety performance of the battery pack is ensured, and the service life of the battery pack is prolonged.
The battery pack according to an embodiment of the present utility model includes: the lower box assembly comprises a frame, a mounting cross beam and a supporting cross beam, wherein the frame is formed into an annular shape, the mounting cross beam is arranged in the frame, two ends of the mounting cross beam in the length direction are connected with the frame, the mounting cross beam comprises a first vertical plate body and a first horizontal plate body, the first vertical plate body divides the space in the frame into a first space and a second space, one end of the first horizontal plate body is connected with the lower end of the first vertical plate body and is positioned in the first space, and the supporting cross beam is arranged in the first space and is arranged at intervals with the first horizontal plate body; the BDU module is arranged in the first space and supported above the first horizontal plate body and the supporting beam, and the BDU module is connected with the first horizontal plate body and the supporting beam; and the battery module is arranged in the second space.
According to the battery pack disclosed by the embodiment of the utility model, the mounting cross beam is arranged, the mounting cross beam comprises the first vertical plate body and the first horizontal plate body, the arrangement of the first horizontal plate body can be used for mounting the BDU module, the fixing reliability of the BDU module is ensured, the integration level of the battery pack is improved, the utilization rate of the space in the battery pack is improved, the arrangement of the first vertical plate body can divide the space in the frame into the first space and the second space, the rigidity of the lower box body assembly is improved, the structural strength of the battery pack is improved, the overall safety performance of the battery pack is ensured, and the service life of the battery pack is prolonged.
In addition, the battery pack according to the present utility model may have the following additional technical features:
In some embodiments, the lower tank assembly further comprises a reinforcing beam disposed on an outer surface of an end of the frame remote from the BDU module.
In some embodiments, the reinforcing beam includes a second vertical plate body and a plurality of second horizontal plate bodies, the second vertical plate body with the frame interval sets up, the second horizontal plate body is located the orientation of the second vertical plate body one side of frame and with the second vertical plate body is connected, a plurality of second horizontal plate bodies up-and-down direction interval sets up, the one end of the second horizontal plate body deviate from the second vertical plate body with the frame is connected.
In some embodiments, the frame has a plurality of reinforcing ribs spaced apart in an up-down direction, and the plurality of second horizontal plates are respectively located at the same height as the plurality of reinforcing ribs in the up-down direction.
In some embodiments, the battery pack further comprises: the bottom guard board is arranged below the frame and connected with the frame; and the cold plate is arranged above the bottom guard plate and below the battery module.
In some embodiments, the cold plate comprises a cold plate flat plate and a cold plate runner plate, the cold plate flat plate is arranged above the cold plate runner plate and is connected with the battery module in an adhesive mode, and an elastic buffer piece is arranged between the cold plate runner plate and the bottom guard plate.
In some embodiments, the upper and lower surfaces of the cold plate are both formed into planes, the cold plate is provided with an avoidance hole, an elastic buffer member is arranged in the avoidance hole, and the elastic buffer member is arranged between the battery module and the bottom guard plate.
In some embodiments, the lower case assembly further includes a middle beam, the middle beam is disposed in the second space and two ends of the middle beam in a length direction are connected with the frame, the middle beam is at least one and is used for dividing the second space into a plurality of subspaces, the battery modules are a plurality of the battery modules which are disposed in one-to-one correspondence with the subspaces, and the cold plate is a plurality of the battery modules which are disposed in one-to-one correspondence with the plurality of the battery modules.
In some embodiments, one end of each adjacent two cold plates along the length direction of the middle cross beam is connected, and cooling channels in the cold plates are communicated.
In some embodiments, the other ends of two adjacent cold plates along the length direction of the middle cross beam are connected, and the cooling channels in the cold plates are communicated.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
Fig. 1 is an exploded view of a battery pack according to a first embodiment of the present utility model;
FIG. 2 is an exploded view of the BDU module of the battery pack and the lower housing assembly mated according to an embodiment of the utility model;
FIG. 3 is an exploded top view of a BDU module of a battery pack and a lower housing assembly mated in accordance with an embodiment of the utility model;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;
Fig. 5 is an exploded view of a battery module and a cold plate of a battery pack according to a first embodiment of the present utility model;
fig. 6 is an exploded view showing the cooperation of a bottom cover plate and a cold plate of a battery pack according to a first embodiment of the present utility model;
fig. 7 is an exploded view of a bottom cover plate, a cold plate, and a battery module of a battery pack according to a second embodiment of the present utility model;
Fig. 8 is a perspective view of a cold plate of a battery pack according to a third embodiment of the present utility model;
Fig. 9 is a perspective view of a cold plate of a battery pack according to a fourth embodiment of the present utility model.
Reference numerals:
100. A battery pack;
1. A lower box assembly; 11. a frame; 111. a first space; 112. a second space; 113. reinforcing ribs; 12. mounting a cross beam; 121. a first vertical plate body; 122. a first horizontal plate body; 13. a support beam; 14. a reinforcing beam; 141. a second vertical plate body; 142. a second horizontal plate body; 15. a middle cross beam;
2. A BDU module;
3. a battery module;
4. A bottom guard board;
5. A cold plate; 51. a cold plate flat plate; 52. a cold plate runner plate; 521. a protrusion; 53. an elastic buffer member; 54. avoidance holes; 55. an interface;
6. and (5) an upper cover.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
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 such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; 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 above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
A battery pack 100 according to an embodiment of the present utility model is described below with reference to the accompanying drawings.
As shown in fig. 1, a battery pack 100 according to an embodiment of the present utility model includes a lower case assembly 1, a BDU module 2, and a battery module 3.
Specifically, referring to fig. 1 and 2, the lower case assembly 1 includes a frame 11, a mounting beam 12, and a supporting beam 13, and the frame 11 is formed in a ring shape to play a supporting role in protecting the internal structure of the battery pack 100. Further, referring to fig. 1 and 3, the mounting cross beam 12 is disposed in the frame 11, and two ends of the mounting cross beam in the length direction (refer to the a direction shown in fig. 3) are welded with the frame 11, the mounting cross beam 12 includes a first vertical plate 121 and a first horizontal plate 122, the first vertical plate 121 extends along the up-down direction (as shown in fig. 1), the first horizontal plate 122 extends along the horizontal direction, the space in the frame 11 is divided into a first space 111 and a second space 112 by the first vertical plate 121, so that the rigidity of the lower box assembly 1 can be improved, the structural strength of the battery pack 100 is improved, and the overall safety performance of the battery pack 100 is ensured.
Further, referring to fig. 1 and 4, one end of the first horizontal plate 122 is connected to the lower end of the first vertical plate 121 and is located in the first space 111, the first horizontal plate 122 and the first vertical plate 121 are formed into an L shape, the first horizontal plate 122 and the first vertical plate 121 are mutually supported, the cost is low, the manufacturing process is simple, the structural strength of the mounting beam 12 can be improved, and the reliability of the lower box assembly 1 is improved. As shown in fig. 1 and 3, the supporting beam 13 is disposed in the first space 111, and both ends in the length direction (refer to the a direction shown in fig. 3) are welded to the frame 11, and the supporting beam 13 extends in the horizontal direction and is disposed at a distance from the first horizontal plate 122.
Further, referring to fig. 1 and 2, the BDU module 2 (battery energy distribution unit) is disposed in the first space 111 and supported above the first horizontal plate 122 and the supporting beam 13, and the BDU module 2 is connected with the first horizontal plate 122 and the supporting beam 13, so that the reliability of fixing the BDU module 2 can be ensured, the integration level of the battery pack 100 can be improved, and the utilization rate of the space in the battery pack 100 can be improved. Specifically, as shown in fig. 3, both ends of the BDU module 2 in the length direction (refer to the a direction shown in fig. 3) are connected to the lower case assembly 1 by fasteners, wherein both sides of both ends of the BDU module 2 in the length direction in the width direction (refer to the b direction shown in fig. 3) are connected to the first horizontal plate 122 and the supporting beam 13, respectively. Optionally, the BDU module 2 is screwed to the first horizontal plate 122 and the supporting beam 13.
Still further, referring to fig. 1, the battery module 3 is disposed in the second space 112, and the battery module 3 is formed of a plurality of battery cells, so that the energy density of the battery pack 100 can be ensured.
It can be appreciated that, because the weight of electrical components such as the BDU module 2 inside the battery pack 100 is relatively large, when the battery pack 100 shakes or vibrates, the shaking of the BDU module 2 is relatively severe, the electrical core adjacent to the BDU module 2 is subjected to a relatively large impact shear force, so that the adhesive strength of the bottom of the electrical core adjacent to the BDU module 2 is weakened, and further, the failure risk such as electrical core falling off occurs, and the first vertical plate 121 can divide the inner space of the frame 11 into the first space 111 and the second space 112, so that the rigidity of the lower box assembly 1 is improved, the structural strength of the battery pack 100 is improved, the overall safety performance of the battery pack 100 is ensured, and the service life of the battery pack 100 is prolonged.
Optionally, referring to fig. 1, the battery pack 100 further includes an upper cover 6, where the upper cover 6 is disposed on the upper side of the lower case assembly 1 and connected with the frame 11, so that the internal structure of the battery pack 100 can be protected from the upper side of the battery module 3, reliability and stability of the battery pack 100 are improved, and service life of the battery pack 100 is prolonged.
According to the battery pack 100 of the embodiment of the utility model, the mounting cross beam 12 is provided, the mounting cross beam 12 comprises the first vertical plate body 121 and the first horizontal plate body 122, the arrangement of the first horizontal plate body 122 can be used for mounting the BDU module 2, the fixing reliability of the BDU module 2 is ensured, the integration level of the battery pack 100 is improved, the utilization rate of the space in the battery pack 100 is improved, the space in the frame 11 can be divided into the first space 111 and the second space 112 by the arrangement of the first vertical plate body 121, the rigidity of the lower box body assembly 1 is improved, and the structural strength of the battery pack 100 is improved, so that the overall safety performance of the battery pack 100 is ensured, and the service life of the battery pack 100 is prolonged.
In some embodiments of the present utility model, referring to fig. 2 and 3, the lower case assembly 1 further includes a reinforcing beam 14, where the reinforcing beam 14 is disposed on an outer surface of one end of the frame 11 far away from the BDU module 2, and the reinforcing beam 14 extends along a length direction of the mounting beam 12, so that a buffering effect can be achieved on one side of the frame 11 far away from the BDU module 2, thereby protecting the battery module 3, guaranteeing safety performance of the battery pack 100, and prolonging a service life of the battery pack 100.
In a further embodiment of the present utility model, referring to fig. 2 and fig. 4, the reinforcing beam 14 includes a second vertical plate 141 and a plurality of second horizontal plates 142, the second vertical plate 141 is disposed at intervals with the frame 11, the second horizontal plates 142 are disposed at one side of the second vertical plate 141 facing the frame 11 and connected with the second vertical plate 141, the plurality of second horizontal plates 142 are disposed at intervals in the up-down direction, one end of the second horizontal plate 142 facing away from the second vertical plate 141 is connected with the frame 11, and the plurality of second horizontal plates 142 can improve the structural strength of the reinforcing beam 14, reduce the probability of deformation of the reinforcing beam 14, and ensure the buffering effect on one side of the frame 11 far away from the BDU module 2.
For example, the second horizontal plate body 142 may be two, three, four, five or six, which are disposed at intervals in the up-down direction. In a specific example, referring to fig. 4, the second horizontal plates 142 are three plates that are disposed at intervals in the up-down direction, so that the structural strength of the reinforcing beam 14 can be improved, the probability of deformation of the reinforcing beam 14 can be reduced, and the side of the frame 11 far away from the BDU module 2 can be guaranteed to have a buffering effect.
In a further embodiment of the present utility model, referring to fig. 4, the frame 11 has a plurality of reinforcing ribs 113 spaced apart in the up-down direction, so that the structural strength of the frame 11 can be improved, the reliability of the frame 11 is ensured, and the plurality of second horizontal plates 142 are respectively located at the same height with the plurality of reinforcing ribs 113 in the up-down direction, so that the reinforcing beam 14 and the frame 11 form a whole, and when the reinforcing beam 14 receives an external force, the external force is transmitted to the frame 11 from the reinforcing beam 14, the external force is dispersed, the probability of deformation of the reinforcing beam 14 is reduced, the stress of the battery cells far from the BDU module 2 is reduced, and the safety performance of the battery module 3 is protected.
In some embodiments of the present utility model, referring to fig. 6, the battery pack 100 further includes a bottom protection plate 4 and a cold plate 5, where the bottom protection plate 4 is disposed below the frame 11 and connected to the frame 11, so as to protect the battery module 3 from the lower side of the battery pack 100 and improve the safety performance of the battery pack 100. Further, referring to fig. 7, the cold plate 5 is disposed above the bottom protection plate 4 and below the battery module 3, and the cold plate 5 is adhesively connected with the battery module 3 for cooling the battery module 3 and the BDU module 2, and the cold plate 5 can also provide a supporting function for the battery module 3 and the BDU module 2 to fix the battery module 3 and the BDU module 2.
In a further embodiment of the present utility model, referring to fig. 5 and 6, the cold plate 5 includes a cold plate 51 and a cold plate runner plate 52, the cold plate 51 is disposed above the cold plate runner plate 52 and is adhesively connected with the battery module 3, a plurality of spaced protrusions 521 are disposed on the cold plate runner plate 52, and a cooling liquid flows through the gaps between the protrusions 521, so that the cooling liquid can be split, and the cooling liquid is uniformly distributed in the cold plate 5, thereby realizing uniform temperature of the battery module 3 and the BDU module 2, and improving the cooling effect of the cold plate 5 on the battery module 3 and the BDU module 2. Further, the provision of the plurality of projections 521 can also enhance the structural strength of the cold plate runner plate 52, enhancing the rigidity of the cold plate 5.
Further, referring to fig. 6, an elastic buffer member 53 is disposed between the cold plate runner plate 52 and the bottom protection plate 4, and the cold plate runner plate 52 is isolated from the bottom protection plate 4 by the elastic buffer member 53, so that when the bottom of the battery pack 100 receives external extrusion force, the deformation of the cold plate 5 and the stress of the battery module 3 are reduced by the energy absorption deformation of the elastic buffer member 53, the bottom protection of the battery pack 100 is improved, and the service life of the battery pack 100 is prolonged.
In a further embodiment of the present utility model, referring to fig. 7, the upper and lower surfaces of the cold plate 5 are both formed into a plane, the cold plate 5 has a relief hole 54, an elastic buffer member 53 is disposed in the relief hole 54, and the elastic buffer member 53 is disposed between the battery module 3 and the bottom protection plate 4, so that the battery module 3 and the bottom protection plate 4 can be isolated, and it is ensured that when the bottom of the battery pack 100 is subjected to external extrusion force, the stress of the battery module 3 is reduced, the bottom protection of the battery pack 100 is improved, and the service life of the battery pack 100 is prolonged by absorbing energy and deforming the elastic buffer member 53.
Further, as shown in fig. 7, a cooling channel is provided in the cooling plate 5, the cooling channel extends in the circumferential direction of the cooling plate 5, the upper and lower inner wall surfaces of the cooling channel are also flat surfaces, one end of the cooling plate 5 in the longitudinal direction of the mounting cross member 12 is provided with an interface 55, and the cooling liquid can flow into or out of the cooling channel through the interface 55.
In a further embodiment of the present utility model, referring to fig. 1 and 3, the lower case assembly 1 further includes a middle beam 15, where the middle beam 15 is disposed in the second space 112 and two ends of the middle beam 15 in the length direction (a direction shown in fig. 3) are connected to the frame 11, and at least one middle beam 15 is used to divide the second space 112 into a plurality of subspaces, so that the rigidity of the lower case assembly 1 can be further improved, the structural strength of the battery pack 100 can be improved, and the overall safety performance of the battery pack 100 can be ensured. Further, referring to fig. 1, the battery modules 3 are multiple and are arranged in one-to-one correspondence with the multiple subspaces, the cold plates 5 are multiple and are arranged in one-to-one correspondence with the multiple battery modules 3, so that the structure is compact, the energy density of the battery pack 100 can be improved, the utilization rate and the integration degree of the battery pack 100 are improved, the weight is relatively light, the cooling effect of the cold plates 5 on the battery modules 3 is ensured, and the integration of functions and efficiency is realized.
In a specific example, referring to fig. 1, the middle cross beam 15 is two spaced apart in the width direction of the BDU module 2, so that the second space 112 can be divided into three subspaces, the battery modules 3 are three arranged in one-to-one correspondence with the three subspaces, each battery module 3 is composed of two rows of electric cores, and the cold plate 5 is three in one-to-one correspondence with the three battery modules 3.
In still a further embodiment of the present utility model, referring to fig. 8, one ends of two adjacent cooling plates 5 in the length direction of the middle cross member 15 are connected and cooling channels in the cooling plates 5 are communicated, so that the circulation of the cooling fluid between the cooling channels can be achieved, and the cooling effect to which the plurality of battery modules 3 are subjected is the same.
In still further embodiments of the present utility model, referring to fig. 9, the other ends of the adjacent two cooling plates 5 along the length direction of the middle cross member 15 are connected and the cooling channels in the cooling plates 5 are communicated, so that complete penetration of the cooling fluid between the cooling channels can be achieved, uniformity of the cooling effect to which the plurality of battery modules 3 are subjected is improved, and the cooling effect of the cooling plates 5 to the battery modules 3 is further improved.
Other constructions and operations of the battery pack 100 according to the embodiment of the present utility model are known to those of ordinary skill in the art, and will not be described in detail herein.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A battery pack, comprising:
The lower box assembly comprises a frame, a mounting cross beam and a supporting cross beam, wherein the frame is formed into an annular shape, the mounting cross beam is arranged in the frame, two ends of the mounting cross beam in the length direction are connected with the frame, the mounting cross beam comprises a first vertical plate body and a first horizontal plate body, the first vertical plate body divides the space in the frame into a first space and a second space, one end of the first horizontal plate body is connected with the lower end of the first vertical plate body and is positioned in the first space, and the supporting cross beam is arranged in the first space and is arranged at intervals with the first horizontal plate body;
The BDU module is arranged in the first space and supported above the first horizontal plate body and the supporting beam, and the BDU module is connected with the first horizontal plate body and the supporting beam;
And the battery module is arranged in the second space.
2. The battery pack of claim 1, wherein the lower housing assembly further comprises a reinforcing beam disposed on an outer surface of an end of the frame remote from the BDU module.
3. The battery pack according to claim 2, wherein the reinforcing beam comprises a second vertical plate body and a plurality of second horizontal plate bodies, the second vertical plate bodies are arranged at intervals with the frame, the second horizontal plate bodies are arranged on one side, facing the frame, of the second vertical plate bodies and are connected with the second vertical plate bodies, the plurality of second horizontal plate bodies are arranged at intervals in the up-down direction, and one ends, facing away from the second vertical plate bodies, of the second horizontal plate bodies are connected with the frame.
4. The battery pack according to claim 3, wherein the frame has a plurality of reinforcing ribs spaced apart in the up-down direction, and the plurality of second horizontal plates are located at the same height as the plurality of reinforcing ribs in the up-down direction, respectively.
5. The battery pack of claim 1, wherein the battery pack further comprises:
The bottom guard board is arranged below the frame and connected with the frame;
And the cold plate is arranged above the bottom guard plate and below the battery module.
6. The battery pack according to claim 5, wherein the cold plate comprises a cold plate flat plate and a cold plate runner plate, the cold plate flat plate is arranged above the cold plate runner plate and is connected with the battery module in an adhesive mode, and an elastic buffer piece is arranged between the cold plate runner plate and the bottom guard plate.
7. The battery pack according to claim 5, wherein the upper and lower surfaces of the cold plate are formed in a plane, the cold plate is provided with an avoidance hole, an elastic buffer member is arranged in the avoidance hole, and the elastic buffer member is arranged between the battery module and the bottom guard plate.
8. The battery pack according to claim 7, wherein the lower case assembly further comprises a middle cross beam, the middle cross beam is disposed in the second space, two ends in the length direction are connected with the frame, the middle cross beam is at least one for dividing the second space into a plurality of subspaces, the battery modules are a plurality of the battery modules which are disposed in one-to-one correspondence with the subspaces, and the cold plates are a plurality of the battery modules which are disposed in one-to-one correspondence with the battery modules.
9. The battery pack according to claim 8, wherein one ends of adjacent two of the cold plates in the length direction of the intermediate beam are connected and cooling passages in the cold plates communicate.
10. The battery pack according to claim 9, wherein the other ends of the adjacent two cold plates in the length direction of the intermediate beam are connected and the cooling passages in the cold plates communicate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202322673040.XU CN221009122U (en) | 2023-09-28 | 2023-09-28 | Battery pack |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202322673040.XU CN221009122U (en) | 2023-09-28 | 2023-09-28 | Battery pack |
Publications (1)
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CN221009122U true CN221009122U (en) | 2024-05-24 |
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CN202322673040.XU Active CN221009122U (en) | 2023-09-28 | 2023-09-28 | Battery pack |
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CN (1) | CN221009122U (en) |
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2023
- 2023-09-28 CN CN202322673040.XU patent/CN221009122U/en active Active
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