Housing for battery of heavy truck

Abstract

The utility model provides a shell of a battery for a heavy truck, which comprises a bottom plate, a battery core module, a battery core, a battery core, a battery core, a battery core, a battery core and a battery core, and is characterized in that the middle of the upper surface of the bottom plate is used for bearing battery core modules; the supporting piece is arranged on the upper surface of the bottom plate and extends in the width direction of the bottom plate, when the bottom plate bears the battery cell module, the supporting piece is located on the front side of the battery cell module, and the supporting piece is used for being connected with a battery management system; the box cover is formed into a groove body with a first opening in the bottom, the box cover can contain the battery cell module, the battery management system and the supporting piece, an outer flange is arranged at the edge of the first opening of the box cover, a lining is embedded in the bottom of the outer flange, and a first fastener penetrates through the outer flange and the lining to be fixedly connected with the bottom plate; a second opening is formed in the side wall of the front side of the box cover; and the end cover is connected to the front side of the box cover through a second fastener. According to the battery shell for the heavy truck, the risk of thermal runaway of a new energy battery is reduced, and the battery shell is convenient to maintain.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy battery field, more specifically, relate to a shell for battery of heavy truck. BACKGROUND

[0002] New energy battery is more and more widely used on heavy truck, and it includes electrically connected electric core module and battery management system.

[0003] New energy battery is relatively large, and heavy truck is relatively bumpy in the driving process, and new energy battery is easily led to failure, and existing new energy battery is usually closed using welding, and it is more troublesome to disassemble when maintaining. UTILITY MODEL CONTENTS

[0004] The utility model provides a new technical scheme of shell for battery of heavy truck, can at least solve the problem of easy failure of new energy battery in prior art and difficult maintenance.

[0005] According to the utility model, a shell for battery of heavy truck is provided, and the shell for battery of heavy truck comprises:

[0006] Bottom plate, the middle part of the upper surface of the bottom plate is used for bearing electric core module;

[0007] Supporting piece, the supporting piece is arranged on the upper surface of the bottom plate and extends along the width direction of the bottom plate, when the bottom plate bears the electric core module, the supporting piece is located at the front side of the electric core module, and the supporting piece is used for connecting battery management system;

[0008] Box cover, the box cover is formed as a groove body with a first opening in the bottom, the box cover can accommodate the electric core module, the battery management system and the supporting piece, an outer flange is arranged on the edge of the box cover at the first opening, the bottom of the outer flange is embedded in a bushing, and the bottom plate is fastened and connected through the first fastener passing through the outer flange, the bushing and the bottom plate, a second opening is formed on the sidewall of the front side of the box cover;

[0009] End cover, the end cover is connected on the front side of the box cover through the second fastener to close the second opening.

[0010] Further, the supporting piece comprises:

[0011] First support step, the first support step is connected to the upper surface of the bottom plate;

[0012] Supporting plate, the supporting plate is connected to the upper surface of the first support step, the side surface of the supporting plate is connected to the battery management system, and the second fastener is fastened and connected with the supporting plate by passing through the end cover and the box cover.

[0013] Furthermore, the support plate includes:

[0014] a front plate, wherein a third opening is formed in the middle of the front plate, and the support plate is connected to the second fastener through an edge of the front plate;

[0015] A folding plate, the folding plate being at least perpendicularly connected to the outer edge of the bottom of the front plate and extending rearward, the folding plate located at the bottom being used to connect to the bottom of the battery management system;

[0016] A rear plate is vertically connected to the rear end of the hemming plate at the bottom and extends upward, and a front surface of the rear plate is used to connect to the rear of the battery management system.

[0017] Furthermore, the first supporting step is formed as a first square tube, and the included angle between adjacent side surfaces of the first square tube is formed as an arc angle.

[0018] Furthermore, the first fastener is a bolt, a first threaded hole is formed on the base plate, and the first fastener passes through the outer flange and is threadedly connected to the first threaded hole.

[0019] Furthermore, the housing further comprises:

[0020] A first sealing ring is provided between the outer flange and the base plate, and the first fastener passes through the outer flange, the bushing and the first sealing ring and is threadedly connected to the first threaded hole.

[0021] Furthermore, the first sealing ring is a silicone member.

[0022] Furthermore, the housing further comprises:

[0023] A second sealing ring is provided between the end cover and the box cover, and the second fastener passes through the end cover and the second sealing ring and is connected to the box cover.

[0024] Furthermore, the housing further comprises:

[0025] A plurality of lifting rings are connected to the upper surface of the bottom plate and are arranged at intervals along the outer edge of the bottom plate.

[0026] Furthermore, a chamber capable of accommodating cooling liquid is formed in the middle of the bottom plate, and a liquid inlet and a liquid outlet communicating with the chamber are formed at the end of the bottom plate.

[0027] According to the battery housing for a heavy-duty truck of the present invention, a base plate supports the battery module, a support member is provided on the base plate to support the battery management system, and a cover accommodates the battery module, the battery management system, and the support member. The cover is detachably connected to the base plate via a first fastener, and the end cap detachably closes the front end of the cover via a second fastener. Connecting the battery management system via the support member stabilizes the position of the battery management system, preventing the battery management system from being directly connected to the battery module, which could cause the battery module and the battery management system to separate due to bumps during the heavy truck's driving, as well as electrical disconnection between the battery module and the battery management system. Furthermore, local heat from the battery module is not adequately dissipated due to the battery management system covering it, leading to thermal runaway of the battery module and the battery management system. If there is a problem with the battery management system itself, or a problem with the connection between the battery management system and the battery module, loosening the fasteners can separate the end cap and the cover, allowing personnel to repair the battery management system at the second opening, thereby reducing repair time and costs.

[0028] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0030] Figure 1 This is a structural diagram of a battery housing for a heavy truck according to one embodiment of the present utility model;

[0031] Figure 2 yes Figure 1 An exploded view of a housing of a battery for a heavy truck according to an embodiment;

[0032] Figure 3 This is a structural diagram of a battery housing for a heavy truck with a cover removed according to an embodiment of the utility model;

[0033] Figure 4 It is a structural diagram of a support plate and a battery management system according to one embodiment of the utility model.

[0034] Reference numerals:

[0035] 10. Bottom plate; 20. Box cover; 21. Second opening; 22. Outer flange; 30. End cover; 40. Lifting ring; 50. Battery cell module; 61. Support plate; 611. Front plate; 612. Folding plate; 613. Rear plate; 62. First support step; 70. Battery management system; 81. First sealing ring; 82. Second sealing ring. DETAILED DESCRIPTION

[0036] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0037] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0038] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0039] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0040] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0041] The housing of a battery for a heavy truck according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0042] like Figures 1 to 4 As shown, the housing of a battery for a heavy truck according to an embodiment of the present invention includes a bottom plate 10 , a support member, a box cover 20 and an end cover 30 .

[0043] First, the bottom plate 10 is described. The middle portion of the upper surface of the bottom plate 10 is used to support the battery cell module 50.

[0044] The base plate 10 can stably support the battery cell module 50 so that the battery cell module 50 operates normally. The battery cell module 50 can also dissipate heat through the base plate 10 to reduce the probability of thermal runaway.

[0045] Next, the support member is described. The support member is provided on the upper surface of the base plate 10 and extends along the width direction of the base plate 10. When the base plate 10 carries the battery module 50, the support member is located in front of the battery module 50. The support member is used to connect to the battery management system 70.

[0046] Connecting the battery management system 70 through the support member can stabilize the position of the battery management system 70, avoid the direct connection between the battery management system 70 and the battery cell module 50, which may cause the battery cell module 50 and the battery management system 70 to separate due to the bumps during the driving of the heavy truck, resulting in the electrical connection between the battery cell module 50 and the battery management system 70 to be disconnected, and the local heat of the battery cell module 50 cannot be fully dissipated due to the coverage of the battery management system 70, resulting in thermal runaway of the battery cell module 50 and the battery management system 70.

[0047] Next, the box cover 20 is described. The box cover 20 is formed as a trough with a first opening at the bottom. The box cover 20 can accommodate the battery cell module 50, the battery management system 70, and the support member. The box cover 20 is provided with an outer flange 22 at the edge of the first opening. The bottom of the outer flange 22 is embedded in a bushing. A first fastener passes through the outer flange 22 and the bushing and is fastened to the base plate 10. A second opening 21 is formed on the side wall of the front side of the box cover 20.

[0048] A cavity can be formed by the box cover 20 and the bottom plate 10, and the battery module 50, the battery management system 70 and the support can be accommodated in the cavity, so as to better protect the battery module 50, the battery management system 70 and the support.

[0049] The first fastener passes through the outer flange 22 and the bushing of the box cover 20 and is fastened to the bottom plate 10, so that the connection between the cover and the bottom plate 10 is stable and easy to disassemble. The first fastener can be a bolt, a rivet, an expansion screw, etc.

[0050] The outer flange 22 can be welded to the edge of the trough body adjacent to the first opening.

[0051] The bushing can increase the tightness of the connection between the outer flange 22 and the base plate 10 and improve the sealing performance.

[0052] Finally, the end cover 30 is described. The end cover 30 is connected to the front side of the box cover 20 by a second fastener to close the second opening 21. The first fastener can be a bolt, a rivet, an expansion screw, etc.

[0053] If there is a problem with the battery management system 70 itself, or a connection problem occurs between the battery management system 70 and the battery cell module 50, loosening the fasteners can separate the end cover 30 and the box cover 20, making it easier for relevant personnel to repair the battery management system 70 at the second opening 21, thereby reducing repair time and costs.

[0054] In the above-mentioned battery housing for heavy-duty trucks, the base plate 10 supports the battery module 50, the support member is arranged on the base plate 10 to support the battery management system 70, the box cover 20 accommodates the battery module 50, the battery management system 70 and the support member, the box cover 20 is detachably connected to the base plate 10 by a first fastener, and the end cover 30 is detachably closed at the front end of the box cover 20 by a second fastener. Connecting the battery management system 70 by the support member can stabilize the position of the battery management system 70, avoid the direct connection between the battery management system 70 and the battery module 50, which may cause the battery module 50 and the battery management system 70 to separate due to the bumps during the driving of the heavy truck, and avoid the electrical connection between the battery module 50 and the battery management system 70 being disconnected, and the local heat of the battery module 50 is not sufficiently dissipated due to the coverage of the battery management system 70, resulting in thermal runaway of the battery module 50 and the battery management system 70. If there is a problem with the battery management system 70 itself, or a connection problem occurs between the battery management system 70 and the battery cell module 50, loosening the fasteners can separate the end cover 30 and the box cover 20, making it convenient for relevant personnel to repair the battery management system 70 at the second opening, thereby reducing repair time and cost.

[0055] In some embodiments of the present invention, the support member includes a first support step 62 and a support plate 61. The first support step 62 is connected to the upper surface of the base plate 10. The support plate 61 is connected to the upper surface of the first support step 62. The side of the support plate 61 is connected to the battery management system 70. The second fastener passes through the end cap 30 and the box cover 20 and is fastened to the support plate 61.

[0056] The support member is connected to the bottom plate 10 via the first support step 62. The support plate 61 is connected to the battery management system 70, which can increase the contact area with the battery management system 70 and provide the battery management system 70 with more stable support.

[0057] The first supporting step 62 can be connected to the bottom plate 10 by welding, so that the first supporting step 62 and the bottom plate 10 are firmly connected.

[0058] The first supporting step 62 may be welded to the base plate 10 by CMT (cold metal transfer welding technology).

[0059] Furthermore, the support plate 61 includes a front plate 611, a hemming plate 612, and a rear plate 613. A third opening is formed in the middle of the front plate 611, and the support plate 61 is connected to the second fastener through the edge of the front plate 611. The hemming plate 612 is at least vertically connected to the outer edge of the bottom of the front plate 611 and extends backward. The hemming plate 612 located at the bottom is used to connect to the bottom of the battery management system 70. The rear plate 613 is vertically connected to the rear end of the hemming plate 612 located at the bottom and extends upward. The front surface of the rear plate 613 is used to connect to the rear of the battery management system 70. The hemming plate 612 can be vertically connected only to the outer edge of the bottom of the front plate 611, or it can be vertically connected to the outer edge of the side of the front plate 611.

[0060] like Figure 4 As shown, the support plate 61 includes a front plate 611, a hem plate 612, and a rear plate 613. The front plate 611, hem plate 612, and rear plate 613 provide stable support for the battery management system 70 while being lightweight. The rear plate 613 is located between the battery management system 70 and the cell module 50 to prevent the cell module 50 from squeezing the battery management system 70.

[0061] In some embodiments of the present invention, the first supporting step 62 is formed as a first square tube, and the included angle between the outer sides of adjacent side surfaces of the first square tube is an arc angle.

[0062] like Figure 2 As shown, the first square tube is located between the bottom plate 10 and the support member. The square tube has high structural strength and light weight, and can provide better support for the support plate 61.

[0063] The included angle between the outer sides of the adjacent side surfaces of the first square tube is an arc angle. When the first square tube is welded to the base plate, the solder accumulates at this arc angle, thereby avoiding the situation in which, when welding conventional right-angled square tubes, the solder accumulates at the position where the right-angled square tube faces the battery cell module 50 and causes interference with the battery cell module 50.

[0064] In some embodiments of the present invention, the first fastener is a bolt. A first threaded hole is formed on the base plate 10 . The first fastener passes through the outer flange 22 and the bushing and is threadedly connected to the first threaded hole.

[0065] The box cover 20 can be easily and securely connected to the base plate 10 by means of screws.

[0066] Furthermore, the housing further includes a first sealing ring 81 . The first sealing ring 81 is disposed between the outer flange 22 and the bottom plate 10 . The first fastener passes through the outer flange 22 , the bushing and the first sealing ring 81 , and is threadedly connected to the first threaded hole of the bottom plate 10 .

[0067] like Figures 1 to 3As shown, the first sealing ring 81 can increase the airtightness between the box cover 20 and the bottom plate 10, thereby improving the waterproof level and preventing the heavy truck from easily leaking water under complex and harsh driving conditions.

[0068] Furthermore, the first sealing ring 81 is made of silicone.

[0069] A silicone member (a silicone material member, such as a foamed silicone member) as the first sealing ring 81 can improve the sealing performance between the box cover 20 and the bottom plate 10. The silicone material member is relatively soft and has a long life, which can increase the sealing performance and service life of the first sealing ring 81.

[0070] In some embodiments of the present invention, the housing further comprises a second sealing ring 82 . The second sealing ring 82 is disposed between the end cover 30 and the box cover 20 , and the second fastener passes through the end cover 30 and the second sealing ring 82 and is connected to the box cover 20 .

[0071] like Figures 1 to 3 As shown, the second sealing ring 82 can enhance the airtightness between the end cap 30 and the box cover 20, improving the waterproof level. This can prevent water from seeping into the heavy truck under complex and harsh driving conditions. The second sealing ring 82 can also be a non-metallic sealing ring (e.g., a silicone sealing ring).

[0072] In some embodiments of the present invention, the housing further comprises a plurality of hanging rings 40. The plurality of hanging rings 40 are connected to the upper surface of the bottom plate 10 and are arranged along the outer edge of the bottom plate 10 at intervals.

[0073] like Figure 1 As shown, four lifting rings 40 are provided on the base plate 10. The lifting rings 40 can be used to conveniently lift the new energy battery, thereby facilitating the installation and removal of the new energy battery.

[0074] In some embodiments of the present invention, a chamber capable of accommodating cooling liquid is formed in the middle of the bottom plate 10 , and a liquid inlet and a liquid outlet communicating with the chamber are formed at the ends of the bottom plate 10 .

[0075] like Figure 2 and Figure 3 As shown, the coolant can enter the chamber from the liquid inlet and then flow out from the liquid outlet, thereby forming a liquid cooling system that can efficiently dissipate heat from the battery cell module 50. The integrated design of the base plate 10 and the liquid cooling system is conducive to improving space utilization, reducing the number of parts, simplifying the assembly process, reducing costs, and increasing the energy density of the battery cell module 50.

[0076] Although some specific embodiments of the present invention have been described in detail through examples, those skilled in the art will appreciate that the above examples are for illustration only and are not intended to limit the scope of the present invention. Those skilled in the art will appreciate that modifications may be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A battery housing for a heavy truck, characterized in that: The housing comprises: A bottom plate (10), wherein the middle portion of the upper surface of the bottom plate (10) is used for supporting the battery cell module (50); a support member, the support member being arranged on the upper surface of the base plate (10) and extending along the width direction of the base plate (10); when the base plate (10) carries the battery module (50), the support member is located in front of the battery module (50); the support member is used to connect to a battery management system (70); A box cover (20), the box cover (20) is formed as a trough body with a first opening at the bottom, the box cover (20) can accommodate the battery module (50), the battery management system (70) and the support member, the box cover (20) is provided with an outer flange (22) at the edge of the first opening, the bottom of the outer flange (22) is embedded in a bushing, and a first fastener passes through the outer flange (22) and the bushing to be fastened to the bottom plate (10), and a second opening (21) is formed on the side wall of the front side of the box cover (20); An end cover (30) is connected to the front side of the box cover (20) via a second fastener to close the second opening (21).

2. The housing of a battery for a heavy truck according to claim 1, characterized in that: The support member comprises: a first supporting step (62), the first supporting step (62) being connected to the upper surface of the bottom plate (10); A support plate (61), the support plate (61) is connected to the upper surface of the first support step (62), the side of the support plate (61) is connected to the battery management system (70), and the second fastener passes through the end cover (30) and the box cover (20) and is fastened to the support plate (61).

3. The housing of a battery for a heavy truck according to claim 2, characterized in that: The support plate (61) comprises: a front plate (611), wherein a third opening is formed in the middle of the front plate (611), and the support plate (61) is connected to the second fastener through an edge of the front plate (611); a folding plate (612), the folding plate (612) being at least vertically connected to the outer edge of the bottom of the front plate (611) and extending backward, the folding plate (612) located at the bottom being used to connect to the bottom of the battery management system (70); A rear plate (613) is vertically connected to the rear end of the folding plate (612) at the bottom and extends upward, and the front surface of the rear plate (613) is used to connect to the rear of the battery management system (70).

4. The housing of a battery for a heavy truck according to claim 2, characterized in that: The first supporting step (62) is formed as a first square tube, and the included angle between the outer sides of adjacent side surfaces of the first square tube is an arc angle.

5. The housing of a battery for a heavy truck according to claim 2, characterized in that: The first fastener is a bolt, a first threaded hole is formed on the base plate (10), and the first fastener passes through the outer flange (22) and the bushing and is threadedly connected to the first threaded hole.

6. The housing of a battery for a heavy truck according to claim 5, characterized in that: The housing further comprises: A first sealing ring (81) is provided between the outer flange (22) and the base plate (10); the first fastener passes through the outer flange (22), the bushing and the first sealing ring (81) and is threadedly connected to the first threaded hole.

7. The housing of a battery for a heavy truck according to claim 6, characterized in that: The first sealing ring (81) is a silicone member.

8. The housing of a battery for a heavy truck according to claim 1, characterized in that: The housing further comprises: A second sealing ring (82) is provided between the end cover (30) and the box cover (20); the second fastener passes through the end cover (30) and the second sealing ring (82) and is connected to the box cover (20).

9. The housing of a battery for a heavy truck according to claim 1, characterized in that: The housing further comprises: A plurality of hanging rings (40) are connected to the upper surface of the bottom plate (10) and are arranged at intervals along the outer edge of the bottom plate (10).

10. The housing of a battery for a heavy truck according to claim 1, characterized in that A chamber capable of accommodating cooling liquid is formed in the middle of the bottom plate (10), and a liquid inlet and a liquid outlet communicating with the chamber are formed at the end of the bottom plate (10).

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