CN211556079U - Crossbeam, battery system case and electric automobile - Google Patents
Crossbeam, battery system case and electric automobile Download PDFInfo
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- CN211556079U CN211556079U CN202020414388.0U CN202020414388U CN211556079U CN 211556079 U CN211556079 U CN 211556079U CN 202020414388 U CN202020414388 U CN 202020414388U CN 211556079 U CN211556079 U CN 211556079U
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- liquid cooling
- cooling plate
- battery system
- box
- cross beam
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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 invention relates to the field of battery modules of electric automobiles, in particular to a cross beam, a battery system box and an electric automobile. The utility model provides a crossbeam for battery system case, the crossbeam includes the crossbeam body of horizontal extension, crossbeam body bottom is provided with and is used for running through the first through-hole on the liquid cooling plate in order to with the supporting seat that the diapire of the box of battery system case is connected, so that the liquid cooling plate passes the bottom of crossbeam body. In the cross beam of the utility model, the bottom of the cross beam is provided with the supporting seat to support the cross beam, so that the cross beam is placed on the box body of the battery system box; the supporting seat penetrates through the liquid cooling plate, so that the liquid cooling plate can penetrate through the bottom of the cross beam to form a whole, and the original partitioned liquid cooling plates are prevented from being connected through a pipeline; the cross beam increases the heat exchange area of the liquid cooling plate, reduces the flow resistance of the joint and the liquid cooling plate, and improves the heat dissipation efficiency.
Description
Technical Field
The invention relates to the field of battery modules of electric automobiles, in particular to a cross beam, a battery system box and an electric automobile.
Background
The overall performance of the lithium ion power battery, including the capacity, power, charge-discharge efficiency, safety, service life and the like of the battery, is greatly influenced by the temperature. In the existing battery box, a beam is fixed in a box body in a welding mode; the liquid cooling plates on the two sides of the cross beam are communicated through a pipeline.
In current new forms of energy battery system, the problem that often meets is for guaranteeing the intensity of box, the inside crossbeam of box often can influence battery thermal management system's arranging and reduce effective area of contact, and thermal management system needs increase the area of contact of liquid cooling board and electric core as far as possible, common box structure can not split and occupy liquid cooling board area because crossbeam and box welding, the regional area of liquid cooling reduces in the thermal management system not only, connect the increase, the flow resistance increases, the runner is arranged limitedly, and the polylinker has increased the inside short circuit risk that liquid cooling system revealed, thereby cause battery system charge and discharge performance poor, pressure differential is big, internal resistance is big, inside short circuit scheduling problem.
Disclosure of Invention
The invention aims to solve the problems of more liquid cooling plate joints and poor heat dissipation capability in the prior art.
In order to achieve the above object, the present invention provides a cross beam for a battery system box, the cross beam including a cross beam body extending transversely, the bottom of the cross beam body being provided with a support seat for penetrating a first through hole on a liquid cooling plate to connect with a bottom wall of a box body of the battery system box, so that the liquid cooling plate penetrates through the bottom of the cross beam body.
Preferably, the supporting seat is provided in plurality and arranged at intervals along the extending direction of the beam body.
Preferably, a vertical column is formed on the beam body, the upper end face of the vertical column is used for supporting a box cover of the battery system box, and the bottom of the vertical column is provided with the supporting seat.
Preferably, a plurality of positioning holes arranged at intervals in the circumferential direction are formed at the outer edge of the supporting seat.
Preferably, the transverse ends of the beam body are respectively formed with a connecting hole.
Preferably, the beam body is a hollow frame, and reinforcing ribs are arranged in the inner space of the frame.
Preferably, the beam body is a die-cast aluminum alloy beam.
A second aspect of the present invention provides a battery system case comprising a case body, a liquid-cooled panel, and any one of the above cross members, wherein,
the liquid cooling plate is arranged on the bottom wall of the box body, a first through hole is formed in the liquid cooling plate, the supporting seat penetrates through the first through hole and is connected with the bottom wall of the box body, and the liquid cooling plate penetrates through the bottom of the beam body.
Preferably, the battery system case includes at least one of the following forms:
the first form: an elastic support is arranged between the liquid cooling plate and the bottom wall of the box body, the liquid cooling plate is positioned between the elastic support and the bottom of the beam body, and the liquid cooling plate can vertically move under the action of vertical external force and the elastic force of the elastic support;
the second form: the liquid cooling plate is provided with an extending groove, a first through hole is formed in the bottom wall of the groove, the beam body is located in the groove, and the bottom of the beam body is in contact with the bottom wall of the groove.
The invention provides an electric automobile which comprises the battery system box.
In the cross beam of the utility model, the bottom of the cross beam is provided with the supporting seat to support the cross beam, so that the cross beam is placed on the box body of the battery system box; the supporting seat penetrates through the liquid cooling plate, so that the liquid cooling plate can penetrate through the bottom of the cross beam to form a whole, and the original partitioned liquid cooling plates are prevented from being connected through a pipeline; the cross beam increases the heat exchange area of the liquid cooling plate, reduces the flow resistance of the joint and the liquid cooling plate, and improves the heat dissipation efficiency.
Drawings
Fig. 1 is a schematic view illustrating an installation of a cross member in a battery system box according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a cross member according to an embodiment of the present invention;
FIG. 3 is a schematic view of the cross-beam of FIG. 2 from another perspective;
fig. 4 is a schematic view of the arrangement of the liquid cooling plate, the elastic support and the thermal pad in fig. 1.
Description of the reference numerals
1-beam body, 2-fixing bolt, 3-angle brace, 4-heat conducting pad, 5-elastic support, 6-liquid cooling plate, 7-box body, 8-supporting seat, 9-reinforcing rib, 10-vertical column, 11-connecting hole, 12-positioning hole and 13-bolt hole.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
The invention provides a cross beam for a battery system box, which comprises a cross beam body 1 extending transversely, wherein a supporting seat 8 penetrating through a first through hole in a liquid cooling plate 6 to be connected with the bottom wall of a box body 7 of the battery system box is arranged at the bottom of the cross beam body 1, so that the liquid cooling plate 6 penetrates through the bottom of the cross beam body 1.
In the cross beam of the utility model, the bottom of the cross beam is provided with the supporting seat to support the cross beam, so that the cross beam is placed on the box body of the battery system box; the supporting seat penetrates through the liquid cooling plate, so that the liquid cooling plate can penetrate through the bottom of the cross beam to form a whole, and the original partitioned liquid cooling plates are prevented from being connected through a pipeline; the cross beam increases the heat exchange area of the liquid cooling plate, reduces the flow resistance of the joint and the liquid cooling plate, and improves the heat dissipation efficiency.
Preferably, the supporting seats 8 are provided in plurality and arranged at intervals along the extending direction of the beam body 1. The supporting seats 8 can establish an even internal framework of the battery system box, the structure is stable, and damage of external force to parts in the box body is reduced.
Preferably, a vertical column 10 is formed on the beam body 1, the upper end face of the vertical column 10 is used for supporting a box cover of the battery system box, and the bottom of the vertical column is provided with the support seat 8. The crossbeam body 1 utilizes vertical post 10 to form the support of battery system case in vertical direction, and both ends support both ends about the battery system case respectively about the vertical post to resist external impact force, protect battery system incasement portion stably.
Preferably, a plurality of positioning holes 12 are formed at the outer edge of the supporting seat 8 and are circumferentially spaced. The bottom wall of the battery system box is correspondingly provided with corresponding protruding pins, so that the protruding pins are inserted into the positioning holes 12, and the beam body 1 is accurately positioned; so as to facilitate the subsequent fixed installation of the beam body 1. Meanwhile, the pin hole positioning also limits the movement of the beam body 1 in the circumferential direction, so that the beam body 1 is more stable.
Preferably, the beam body 1 is formed with connection holes 11 at both lateral ends thereof, respectively. Preferably, the left end and the right end of the beam body 1 are respectively connected to the side wall of the box body 7 through a pair of corner supports 3. So that the two ends of the beam body 1 are also fixed with the battery system box, and the beam body 1 is further reinforced.
Preferably, the beam body 1 is a hollow frame, and a reinforcing rib 9 is arranged in the inner space of the frame. The reinforcing ribs 9 can enhance the impact resistance of the beam body 1, and further enhance the safety of the battery system box.
Preferably, the beam body 1 is a die-cast aluminum alloy beam. The casting manufactured by the die casting method has higher tensile strength of materials, and has more positive significance for the beam body 1 serving as a framework support protection battery system box.
Preferably, the beam body 1 is provided with bolt holes 13, and the beam body 1 is connected with the box body 7 through fixing bolts 2 matched with the bolt holes 13; further strengthen the connection of crossbeam body 1 and battery system case box.
In a second aspect, the invention provides a battery system box, comprising a box body 7, a liquid cooling plate 6 and any one of the above cross beams, wherein,
the liquid cooling plate 6 is arranged on the bottom wall of the box body 7, a first through hole is formed in the liquid cooling plate 6, the supporting seat 8 penetrates through the first through hole and is connected with the bottom wall of the box body 7, and the liquid cooling plate 6 penetrates through the bottom of the beam body 1.
In the cross beam of the utility model, the bottom of the cross beam is provided with the supporting seat to support the cross beam, so that the cross beam is placed on the box body of the battery system box; the supporting seat penetrates through the liquid cooling plate, so that the liquid cooling plate can penetrate through the bottom of the cross beam to form a whole, and the original partitioned liquid cooling plates are prevented from being connected through a pipeline; the cross beam increases the heat exchange area of the liquid cooling plate, reduces the flow resistance of the joint and the liquid cooling plate, and improves the heat dissipation efficiency.
Preferably, the battery system case includes at least one of the following forms:
the first form: an elastic support 5 is arranged between the liquid cooling plate 6 and the bottom wall of the box body 7, the liquid cooling plate 6 is positioned between the elastic support 5 and the bottom of the beam body 1, and the liquid cooling plate 6 can vertically move under the action of a vertical external force and the elastic force of the elastic support 5; in the transportation and the use of battery system case, liquid cooling board 6 can produce wearing and tearing because jolting, and elastic support 5 has played the absorbing effect, reduces the wearing and tearing of liquid cooling board 6, improves battery module life. Accordingly, in order to avoid the liquid-cooled plate 6 from sliding during movement; be provided with the round pin body on the battery system case diapire, corresponding hole has been seted up on the liquid cooling board 6 to inject liquid cooling board 6 slides on vertical direction.
The second form: an extended groove is formed in the liquid cooling plate 6, a first through hole is formed in the bottom wall of the groove, the beam body 1 is located in the groove, and the bottom of the beam body 1 is in contact with the bottom wall of the groove. The liquid cooling plate 6 can be a plate with a groove, and the beam body 1 is arranged in the groove; the liquid cooling plate 6 with the groove can determine the position of the liquid cooling action by only adjusting the shape of the liquid cooling plate 6 on the premise that the beam body 1 is not modified in adaptability; meanwhile, the area of the liquid cooling plate 6 is further increased, and the heat dissipation effect is improved. Preferably, the liquid cooling plate 6 is provided with a heat conducting pad 4.
The invention provides an electric automobile which comprises the battery system box. In the cross beam of the utility model, the bottom of the cross beam is provided with the supporting seat to support the cross beam, so that the cross beam is placed on the box body of the battery system box; the supporting seat penetrates through the liquid cooling plate, so that the liquid cooling plate can penetrate through the bottom of the cross beam to form a whole, and the original partitioned liquid cooling plates are prevented from being connected through a pipeline; the cross beam increases the heat exchange area of the liquid cooling plate, reduces the flow resistance of the joint and the liquid cooling plate, and improves the heat dissipation efficiency.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, many simple modifications can be made to the technical solution of the invention. Including each of the specific features, are combined in any suitable manner. The invention is not described in detail in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.
Claims (10)
1. The cross beam for the battery system box is characterized by comprising a cross beam body (1) extending transversely, wherein a supporting seat (8) used for penetrating through a first through hole in a liquid cooling plate (6) to be connected with the bottom wall of a box body (7) of the battery system box is arranged at the bottom of the cross beam body (1), so that the liquid cooling plate (6) penetrates through the bottom of the cross beam body (1).
2. The crossmember according to claim 1, wherein the support base (8) is provided in plurality and arranged at intervals along the extending direction of the crossmember body (1).
3. The crossbeam according to claim 2, wherein the crossbeam body (1) is formed with a vertical column (10), the upper end face of the vertical column (10) is used for supporting a box cover of a battery system box, and the bottom of the vertical column (10) is provided as the supporting seat (8).
4. Cross-member according to claim 3, characterized in that the outer edge of the support seat (8) is formed with a plurality of circumferentially spaced positioning holes (12).
5. The crossmember according to claim 4, wherein both lateral ends of the crossmember body (1) are formed with connection holes (11), respectively.
6. Beam according to claim 1, characterized in that the beam body (1) is a hollow frame, inside the inner space of which a reinforcement (9) is arranged.
7. The crossmember according to claim 1, wherein the crossmember body (1) is a die-cast aluminum alloy crossmember.
8. A battery system box, characterized in that it comprises a box body (7), a liquid cooled plate (6) and a beam according to any of claims 1-7,
the liquid cooling plate (6) is arranged on the bottom wall of the box body (7), a first through hole is formed in the liquid cooling plate (6), the supporting seat (8) penetrates through the first through hole and is connected with the bottom wall of the box body (7), and the liquid cooling plate (6) penetrates through the bottom of the beam body (1).
9. The battery system box of claim 8, comprising at least one of the following forms:
the first form: an elastic support (5) is arranged between the liquid cooling plate (6) and the bottom wall of the box body (7), the liquid cooling plate (6) is positioned between the elastic support (5) and the bottom of the beam body (1), and the liquid cooling plate (6) can vertically move under the action of a vertical external force and the elastic force of the elastic support (5);
the second form: an extended groove is formed in the liquid cooling plate (6), a first through hole is formed in the bottom wall of the groove, the beam body (1) is located in the groove, and the bottom of the beam body (1) is in contact with the bottom wall of the groove.
10. An electric vehicle characterized by comprising the battery system box according to claim 8 or 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020414388.0U CN211556079U (en) | 2020-03-26 | 2020-03-26 | Crossbeam, battery system case and electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020414388.0U CN211556079U (en) | 2020-03-26 | 2020-03-26 | Crossbeam, battery system case and electric automobile |
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| Publication Number | Publication Date |
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| CN211556079U true CN211556079U (en) | 2020-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020414388.0U Active CN211556079U (en) | 2020-03-26 | 2020-03-26 | Crossbeam, battery system case and electric automobile |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112701408A (en) * | 2020-12-25 | 2021-04-23 | 孚能科技(赣州)股份有限公司 | Bottom plate structure of box body chassis, battery pack and automobile |
| CN113422139A (en) * | 2021-06-18 | 2021-09-21 | 中国第一汽车股份有限公司 | Battery assembly, electric vehicle and design method |
| CN114024076A (en) * | 2021-11-02 | 2022-02-08 | 安徽舟之航电池有限公司 | Power battery pack lower box body of novel integrated liquid cooling system for new energy automobile |
| CN114069146A (en) * | 2021-10-28 | 2022-02-18 | 中国第一汽车股份有限公司 | Harmonica tube type liquid cooling plate fixing device, design method, battery and vehicle |
-
2020
- 2020-03-26 CN CN202020414388.0U patent/CN211556079U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112701408A (en) * | 2020-12-25 | 2021-04-23 | 孚能科技(赣州)股份有限公司 | Bottom plate structure of box body chassis, battery pack and automobile |
| CN112701408B (en) * | 2020-12-25 | 2022-12-09 | 孚能科技(赣州)股份有限公司 | Bottom plate structure of box body chassis, battery pack and automobile |
| CN113422139A (en) * | 2021-06-18 | 2021-09-21 | 中国第一汽车股份有限公司 | Battery assembly, electric vehicle and design method |
| CN114069146A (en) * | 2021-10-28 | 2022-02-18 | 中国第一汽车股份有限公司 | Harmonica tube type liquid cooling plate fixing device, design method, battery and vehicle |
| CN114069146B (en) * | 2021-10-28 | 2024-04-09 | 中国第一汽车股份有限公司 | Harmonica-type liquid cooling plate fixing device, design method, battery and vehicle |
| CN114024076A (en) * | 2021-11-02 | 2022-02-08 | 安徽舟之航电池有限公司 | Power battery pack lower box body of novel integrated liquid cooling system for new energy automobile |
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