New energy automobile battery cooling structure

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By using aluminum alloy extruded profiles to form a cooling water circuit and canceling the separate cooling water circuit, the problems of low space utilization and high cost in the cooling structure of new energy vehicles are solved, and efficient battery cooling and cost reduction are achieved.

CN222338348UActive Publication Date: 2025-01-10YIBIN COWIN AUTO CO LTD

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Patent Information

Application Number: CN202323635291.5
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2023-12-29
Publication Date: 2025-01-10
Estimated Expiration: 2033-12-29

AI Technical Summary

Technical Problem

In the existing battery cooling structure of new energy vehicles, battery pack cooling mainly relies on separate water pipes and cooling plates, resulting in low space utilization, high cost, and increasing the number of parts and manufacturing complexity.

Method used

The cooling structure is formed by extruded aluminum alloy profiles, and the cooling water path is formed by using the profile cavity space. The separate cooling water path is cancelled. The cooling water circulation is realized through the water guide channel of the intermediate beam, longitudinal beam and cover plate, and the cover plate is directly contacted to the cover plate. Cool down and cool.

Benefits of technology

It effectively improves space utilization, reduces component development costs, reduces vehicle costs, and ensures the cooling effect of the battery.

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Abstract

The utility model belongs to a new energy automobile battery cooling structure in the technical field of new energy automobile batteries. The left longitudinal beam (1), the right longitudinal beam (2) and the middle beam (3) are respectively connected with the cover plate (4), the middle beam (3) is internally provided with a middle beam water guide cavity (5), the cover plate (4) is provided with a cover plate water guide cavity (6), the middle beam water guide cavity (5) is communicated with the cover plate water guide cavity (6), the left longitudinal beam (1) and the right longitudinal beam (2) are respectively provided with a longitudinal beam water guide cavity (7), and the cover plate water guide cavity (6) is communicated with the longitudinal beam water guide cavity (7) of the left longitudinal beam (1) and the longitudinal beam water guide cavity (7) of the right longitudinal beam (2). The battery cooling structure of the new energy automobile is simple in structure, the cooling structure is formed by utilizing the existing aluminum alloy extruded section of the automobile body, the cavity space of the section is effectively utilized, and the space utilization rate is improved, so that a water pipe, a water pipe connector, a fixing piece and the like are omitted, the development cost of parts is reduced, and the cost of the whole automobile is reduced.

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Description

Technical Field

[0001] The utility model belongs to the technical field of new energy vehicle batteries, and more specifically, relates to a new energy vehicle battery cooling structure. Background Art

[0002] At present, electric vehicles are becoming more and more popular, and the parts of the vehicle body where the battery pack is installed use more aluminum alloy extrusion profiles. The defects of the battery pack cooling in the existing technology are: the battery pack is cooled mainly by using separate water pipes and cooling plates, which wastes the space of the whole vehicle and has a low battery space utilization rate; there are many water pipes and joints, which increases the cost of vehicle manufacturing. Utility Model Content

[0003] The technical problem to be solved by the utility model is: in view of the deficiencies of the existing technology, a new energy vehicle battery cooling structure is provided which has a simple structure and utilizes the existing aluminum alloy extruded profiles of the vehicle body to form a cooling structure, effectively utilizes the profile cavity space, improves space utilization, thereby eliminating water pipes, water pipe joints, fixings, etc., reduces component development costs, and reduces the cost of the entire vehicle.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the utility model is:

[0005] The utility model discloses a battery cooling structure for a new energy vehicle, comprising a left longitudinal beam, a right longitudinal beam and a middle beam, wherein the left longitudinal beam, the right longitudinal beam and the middle beam are respectively connected to a cover plate, an middle beam water guiding cavity is arranged inside the middle beam, a cover plate water guiding cavity is arranged on the cover plate, the middle beam water guiding cavity is connected to the cover plate water guiding cavity, the left longitudinal beam and the right longitudinal beam are respectively provided with longitudinal beam water guiding cavities, and the cover plate water guiding cavity is connected to the longitudinal beam water guiding cavity of the left longitudinal beam and the longitudinal beam water guiding cavity of the right longitudinal beam.

[0006] The end of the middle beam is provided with a cooling water inlet, and the end of the left longitudinal beam and the end of the right longitudinal beam are respectively provided with cooling water outlets.

[0007] The connection surface of the left longitudinal beam connected to the cover plate is provided with a longitudinal beam water guide hole, and the connection surface of the right longitudinal beam connected to the cover plate is provided with a longitudinal beam water guide hole.

[0008] A cover plate water guide hole is arranged at the position where the cover plate is connected to the left longitudinal beam, and a cover plate water guide hole is arranged at the position where the cover plate is connected to the right longitudinal beam.

[0009] The connection surface of the middle beam connecting the cover plate is provided with a middle beam water guide hole, and the position where the cover plate connects the middle beam is provided with a middle water guide hole of the cover plate.

[0010] The cover plate water guide cavity is provided with a plurality of cover plate water guide cavity channels arranged at intervals, the cover plate water guide cavity channels are arranged to be perpendicular to the structure of the middle beam, and each middle beam water guide hole on the cover plate is connected to a cover plate water guide cavity channel.

[0011] The left longitudinal beam, the right longitudinal beam and the middle beam are arranged in parallel.

[0012] The middle water guide hole of the cover plate is a plurality of water guide holes of the water guide cavity channel, and the left longitudinal beam, the right longitudinal beam and the middle beam are respectively welded and connected with the cover plate.

[0013] The left longitudinal beam has a plurality of longitudinal beam water guide cavities arranged at intervals, the right longitudinal beam has a plurality of longitudinal beam water guide cavities arranged, and the longitudinal beam water guide cavities and the cover plate connecting holes are arranged in a structure with one-to-one correspondence in number and position.

[0014] One end of the left longitudinal beam, the right longitudinal beam and the middle beam is respectively connected to the front cross beam, and the other end of the left longitudinal beam, the right longitudinal beam and the middle beam is respectively connected to the rear cross beam, and the rear cross beam is also fixedly connected to the cover plate.

[0015] The technical solution of the utility model is adopted, and the working principle and beneficial effects are as follows:

[0016] The battery cooling structure of the new energy vehicle described in the utility model makes full use of the profile structure of these existing components to form a cooling water path, and can eliminate a separate cooling water path, saving costs and reducing space occupancy. When the structure is set, the cavities that originally exist in the left longitudinal beam, the right longitudinal beam, and the middle beam are used as water guide cavities. A cooling water inlet is set on the middle beam, one end of the cooling water inlet is connected to the water tank, and the other end of the cooling water inlet is connected to the middle beam. The cooling water enters the middle beam water guide cavity of the middle beam, and then enters the cover plate water guide cavity of the cover plate, and then enters the longitudinal beam water guide cavity of the left longitudinal beam and the longitudinal beam water guide cavity of the right longitudinal beam respectively. Cooling water outlets are respectively set on the left longitudinal beam and the right longitudinal beam, and the cooling water outlets are connected to the water tank, thereby forming a cooling water circulation. The battery is arranged on the upper surface of the cover plate, and the cooling water contacts the cover plate, and the cooling is achieved through the cover plate. In this way, the existing structure is fully utilized, the independent cooling pipeline is eliminated, and the cooling effect is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following is a brief description of the contents and symbols in the drawings of this specification:

[0018] Figure 1 This is a schematic diagram of the structure of the battery cooling structure of the new energy vehicle described in the utility model;

[0019] Figure 2 This is a side structural schematic diagram of the new energy vehicle battery cooling structure described in the utility model;

[0020] Figure 3 This is a structural schematic diagram of the cover plate of the new energy vehicle battery cooling structure described in the utility model;

[0021] Figure 4 This is a schematic cross-sectional view of the cover plate of the battery cooling structure for a new energy vehicle according to the utility model;

[0022] The markings in the attached drawings are respectively: 1. left longitudinal beam; 2. right longitudinal beam; 3. middle beam; 4. cover plate; 5. middle beam water guide cavity; 6. cover plate water guide cavity; 7. longitudinal beam water guide cavity; 8. water guide hole of water guide cavity channel; 9. middle beam water guide hole; 10. cover plate water guide cavity channel; 11. front cross beam; 12. rear cross beam. DETAILED DESCRIPTION

[0023] The following is a detailed description of the embodiments of the present invention, such as the shapes, structures, positions and connection relationships of the components involved, the functions and working principles of the components, etc., by referring to the accompanying drawings:

[0024] As attached Figure 1 -Attached Figure 4 As shown, the utility model is a battery cooling structure for a new energy vehicle, comprising a left longitudinal beam 1, a right longitudinal beam 2, and a middle beam 3. The left longitudinal beam 1, the right longitudinal beam 2, and the middle beam 3 are connected to a cover plate 4 respectively. An intermediate beam water guide cavity 5 is arranged inside the intermediate beam 3, a cover plate water guide cavity 6 is arranged on the cover plate 4, the intermediate beam water guide cavity 5 is connected to the cover plate water guide cavity 6, the left longitudinal beam 1 and the right longitudinal beam 2 are respectively provided with longitudinal beam water guide cavities 7, and the cover plate water guide cavity 6 is connected to the longitudinal beam water guide cavity 7 of the left longitudinal beam 1 and the longitudinal beam water guide cavity 7 of the right longitudinal beam 2. The above structure proposes an improved technical solution to address the deficiencies in the prior art. Because there are many profiles on the new energy vehicle where the battery is installed, the improvement of the utility model is to make full use of the profile structure of these existing components to form a cooling water path, and a separate cooling water path can be eliminated, saving costs and reducing space occupancy. When setting up the structure, the cavities originally existing in the left longitudinal beam 1, the right longitudinal beam 2, and the middle beam 3 are used as water guide cavities, and a cooling water inlet is set on the middle beam 3, one end of the cooling water inlet is connected to the water tank, and the other end of the cooling water inlet is connected to the middle beam 3. The cooling water enters the middle beam water guide cavity 5 of the middle beam 3, and then enters the cover plate water guide cavity 6 of the cover plate, and then respectively enters the longitudinal beam water guide cavity 7 of the left longitudinal beam 1 and the longitudinal beam water guide cavity 7 of the right longitudinal beam 2. Cooling water outlets are set on the left longitudinal beam 1 and the right longitudinal beam 2, respectively, and the cooling water outlets are connected to the water tank, thereby forming a cooling water circulation. The battery is arranged on the upper surface of the cover plate 4, so that the cooling water contacts the cover plate 4, and the cooling is achieved through the cover plate 4. In this way, the existing structure is fully utilized, the independent cooling pipeline is eliminated, and the cooling effect is guaranteed. The new energy vehicle battery cooling structure described in the utility model has a simple structure, utilizes the existing aluminum alloy extruded profile of the vehicle body to form the cooling structure, effectively utilizes the profile cavity space, improves space utilization, eliminates water pipes, water pipe joints, fixings, etc., reduces parts development costs, and reduces the cost of the entire vehicle.

[0025] The end of the middle beam 3 is provided with a cooling water inlet, and the end of the left longitudinal beam 1 and the end of the right longitudinal beam 2 are respectively provided with cooling water outlets. The middle beam generally has multiple cavities, and the top cavity close to the cover plate is used as the cover plate water guide cavity. In the above structure, the cooling water inlet is connected to the cover plate water guide cavity, and two cooling water outlets are provided, each cooling water outlet is connected to a longitudinal beam, and the cooling water circulates in the middle beam, the cover plate, and the longitudinal beam to achieve battery cooling.

[0026] The connection surface of the left longitudinal beam 1 connected to the cover plate 4 is provided with a longitudinal beam water guide hole, and the connection surface of the right longitudinal beam 2 connected to the cover plate 4 is provided with a longitudinal beam water guide hole. The position where the cover plate 4 connects to the left longitudinal beam 1 is provided with a cover plate water guide hole, and the position where the cover plate 4 connects to the right longitudinal beam 2 is provided with a cover plate water guide hole. The connection surface of the middle beam 3 connected to the cover plate 4 is provided with a middle beam water guide hole, and the position where the cover plate 4 connects to the middle beam 3 is provided with a cover plate middle water guide hole. The above structure realizes the connection between the cover plate and the middle beam, and realizes the connection between the cover plate and the left longitudinal beam and the right longitudinal beam respectively. The left longitudinal beam, the right longitudinal beam, and the middle beam are welded to the cover plate respectively to realize reliable connection and effectively avoid water leakage problems.

[0027] The cover plate water guide cavity 6 is provided with a plurality of cover plate water guide cavity channels 10 arranged in gaps. The cover plate water guide cavity channels 10 are arranged to be perpendicular to the middle beam 3. Each middle beam water guide hole 9 on the cover plate 4 is connected to a water guide cavity channel water guide hole 8 of a cover plate water guide cavity channel 10. The water guide cavity channel water guide hole 8 is arranged on the lower surface of the cover plate 4, and the lower surface of the cover plate is connected to the middle beam 3. In the above structure, cooling water enters the cover plate water guide cavity through the water guide cavity channel water guide hole, flows through each cover plate water guide cavity channel 10, flows toward the left longitudinal beam direction and the right longitudinal beam direction, realizes cooling of the cover plate, and the cover plate cools the battery. The water after cooling the cover plate enters the longitudinal beam water guide cavity 7.

[0028] The left longitudinal beam 1, the right longitudinal beam 2, and the middle beam 3 are arranged in parallel. The water guide hole in the middle of the cover plate is a plurality of water guide cavity channel water guide holes 8. The left longitudinal beam 1, the right longitudinal beam 2, and the middle beam 3 are respectively welded and connected to the cover plate 4 at the cover plate connection hole. The longitudinal beam water guide cavity 7 of the left longitudinal beam 1 is provided with a plurality of gaps, and the longitudinal beam water guide cavity 7 of the right longitudinal beam 2 is provided with a plurality of gaps. The longitudinal beam water guide cavity 7 and the cover plate connection hole are provided with a structure in which the number and position of the longitudinal beam water guide cavity 7 and the cover plate connection hole are provided in a one-to-one correspondence. In the above structure, the middle beam is located between the left longitudinal beam and the right longitudinal beam for water inlet, while the left longitudinal beam and the right longitudinal beam are used for water outlet.

[0029] One end of the left longitudinal beam 1, the right longitudinal beam 2, and the middle beam 3 are respectively connected to the front cross beam 11, which is also fixedly connected to the cover plate 4. The other ends of the left longitudinal beam 1, the right longitudinal beam 2, and the middle beam 3 are respectively connected to the rear cross beam 12, which is also fixedly connected to the cover plate 4. In the above structure, the front cross beam and the rear cross beam connect the left longitudinal beam 1, the right longitudinal beam 2, and the middle beam 3 to improve the overall strength.

[0030] The improvement of the battery cooling structure of the new energy vehicle described in the utility model is that the profile structure of these existing components is fully utilized to form a cooling water path, and a separate cooling water path can be eliminated, saving costs and reducing space occupation. When the structure is set, the cavities originally existing in the left longitudinal beam 1, the right longitudinal beam 2, and the middle beam 3 are used as water guide cavities, and a cooling water inlet is set on the middle beam 3, one end of the cooling water inlet is connected to the water tank, and the other end of the cooling water inlet is connected to the middle beam 3, and the cooling water enters the middle beam water guide cavity 5 of the middle beam 3, and then enters the cover plate water guide cavity 6 of the cover plate, and then enters the longitudinal beam water guide cavity 7 of the left longitudinal beam 1 and the longitudinal beam water guide cavity 7 of the right longitudinal beam 2 respectively, and cooling water outlets are respectively set on the left longitudinal beam 1 and the right longitudinal beam 2, and the cooling water outlets are connected to the water tank, thereby forming a cooling water circulation. The battery is arranged on the upper surface of the cover plate 4, so that the cooling water contacts the cover plate 4, and the cooling is achieved through the cover plate 4. In this way, the existing structure is fully utilized, the independent cooling pipeline is eliminated, and the cooling effect of the battery is guaranteed.

[0031] The above is an exemplary description of the utility model in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A new energy vehicle battery cooling structure, characterized in that: The invention comprises a left longitudinal beam (1), a right longitudinal beam (2), and a middle beam (3); the left longitudinal beam (1), the right longitudinal beam (2), and the middle beam (3) are respectively connected to a cover plate (4); a middle beam water guide cavity (5) is arranged inside the middle beam (3); a cover plate water guide cavity (6) is arranged on the cover plate (4); the middle beam water guide cavity (5) is connected to the cover plate water guide cavity (6); the left longitudinal beam (1) and the right longitudinal beam (2) are respectively provided with longitudinal beam water guide cavities (7); and the cover plate water guide cavity (6) is connected to the longitudinal beam water guide cavity (7) of the left longitudinal beam (1) and the longitudinal beam water guide cavity (7) of the right longitudinal beam (2).

2. The new energy vehicle battery cooling structure according to claim 1 is characterized in that: A cooling water inlet is provided at the end of the middle beam (3), and cooling water outlets are provided at the ends of the left longitudinal beam (1) and the right longitudinal beam (2), respectively.

3. The new energy vehicle battery cooling structure according to claim 1 or 2, characterized in that: A longitudinal beam water guide hole is provided on the connection surface where the left longitudinal beam (1) is connected to the cover plate (4), and a longitudinal beam water guide hole is provided on the connection surface where the right longitudinal beam (2) is connected to the cover plate (4).

4. The new energy vehicle battery cooling structure according to claim 3 is characterized in that: A cover plate water guide hole is provided at a position where the cover plate (4) is connected to the left longitudinal beam (1), and a cover plate water guide hole is provided at a position where the cover plate (4) is connected to the right longitudinal beam (2).

5. The new energy vehicle battery cooling structure according to claim 4 is characterized in that: The connection surface where the middle beam (3) is connected to the cover plate (4) is provided with a middle beam water guide hole, and the position where the cover plate (4) is connected to the middle beam (3) is provided with a cover plate middle water guide hole.

6. The new energy vehicle battery cooling structure according to claim 1 or 2, characterized in that: The cover plate water guide cavity (6) is provided with a plurality of cover plate water guide cavity channels (10) arranged at intervals, the cover plate water guide cavity channels (10) being arranged to be perpendicular to the middle beam (3), and each middle beam water guide hole on the cover plate (4) is connected to a cover plate water guide cavity channel (10).

7. The new energy vehicle battery cooling structure according to claim 1 is characterized in that: The left longitudinal beam (1), the right longitudinal beam (2), and the middle beam (3) are arranged in parallel.

8. The new energy vehicle battery cooling structure according to claim 5, characterized in that: The middle water guide holes of the cover plate are a plurality of water guide cavity channel water guide holes (8), and the left longitudinal beam (1), the right longitudinal beam (2) and the middle beam (3) are respectively connected to the cover plate (4) by welding.

9. The new energy vehicle battery cooling structure according to claim 1 or 2, characterized in that: The left longitudinal beam (1) is provided with a plurality of longitudinal beam water guide cavities (7) at intervals, the right longitudinal beam (2) is provided with a plurality of longitudinal beam water guide cavities (7), and the longitudinal beam water guide cavities (7) and the cover plate connection holes are provided with a structure in which the number and position of the longitudinal beam water guide cavities (7) correspond to each other.

10. The new energy vehicle battery cooling structure according to claim 1 or 2, characterized in that: One end of the left longitudinal beam (1), the right longitudinal beam (2) and the middle beam (3) are respectively connected to the front cross beam (11), and the other ends of the left longitudinal beam (1), the right longitudinal beam (2) and the middle beam (3) are respectively connected to the rear cross beam (12), and the rear cross beam (12) is also fixedly connected to the cover plate (4).