Box structure for battery system of heavy truck

Abstract

The utility model provides a box body structure for a battery system of a heavy truck. The box body structure comprises a supporting plate, a bottom supporting structure, a transverse clamping mechanism, a longitudinal clamping mechanism, a middle heating sheet, a bottom heating sheet, two end plates, two side plates and four connecting structures, the two end plates are arranged between the supporting plate and the bottom supporting structure in a left-right symmetry mode, the two side plates are arranged in a front-back symmetry mode, and the front end and the rear end of each side plate are correspondingly connected with one end. The four connecting structures are evenly distributed on the top of the supporting plate and are sequentially connected with the supporting plate end plate and the bottom supporting structure. According to the box body structure for the battery system of the heavy truck, the problem that the early strength of the structure fails due to the fact that a starting and parking air conditioner power supply product in the related technology is unreasonable and heavy and cannot adapt to the special alternating load working condition of the heavy truck is solved.

Description

Technical Field

[0001] This utility model belongs to the field of automotive battery technology, and in particular relates to a housing structure for a heavy-duty truck battery system. Background Technology

[0002] With the rapid development of the domestic transportation industry, heavy-duty truck drivers have an increasingly urgent need to improve their driving environment and comfort. Traditional starting batteries, due to their small capacity, short cycle life, and poor environmental friendliness, cannot meet current demands. Meanwhile, with the widespread application of onboard electrical equipment such as air conditioning, the market for heavy-duty truck starting and parking power supplies is gradually heating up, and starting and parking power supplies have become an important requirement for heavy-duty truck drivers. However, some existing starting and parking air conditioning power supply products suffer from unreasonable design and heavy weight, making them unable to adapt to the unique alternating load conditions of heavy-duty trucks, leading to early structural strength failure. Furthermore, their large size or unreasonable dimensions affect installation compatibility; and design flaws in the power supply's thermal management system prevent the heating elements from achieving their full thermal efficiency. Summary of the Invention

[0003] In view of this, the present invention aims to at least partially solve one of the related technical problems.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] A housing structure for a heavy-duty truck battery system includes a support plate, a bottom support structure, a lateral clamping mechanism, a longitudinal clamping mechanism, a middle heating element, a bottom heating element, two end plates, two side plates, and four connecting structures.

[0006] The two end plates are symmetrically arranged between the support plate and the bottom support structure, and the two side plates are symmetrically arranged front and back. The front and back ends of each side plate are connected to one of the end plates.

[0007] The four connecting structures are evenly distributed on the top of the support plate, and the connecting structures are sequentially connected to the end plate of the support plate and the bottom support structure;

[0008] The intermediate heating element is vertically disposed between the two end plates, and the intermediate heating element is located in the middle of the end plates. The bottom heating element is horizontally disposed above the bottom support structure.

[0009] The two side plates are connected by the lateral clamping mechanism, and the two end plates are connected by the longitudinal clamping mechanism.

[0010] Furthermore, the lateral clamping mechanism includes two lateral pull rods, which are symmetrically arranged vertically. The lateral pull rods are located in the middle of the side plate, and the front and rear ends of the lateral pull rods are detachably connected to one of the side plates.

[0011] Furthermore, the longitudinal clamping mechanism includes two longitudinal tie rods, which are symmetrically arranged vertically. The longitudinal tie rods are located in the middle of the end plate, and the left and right ends of the longitudinal tie rods are detachably connected to one end plate.

[0012] Furthermore, the longitudinal clamping mechanism also includes four clamping nuts. The end of each longitudinal tie rod is connected and fixed to the end plate through one of the clamping nuts. The inner side of the locking end of the clamping nut is provided with an anti-slip pad, and the locking end of the clamping nut is provided with pre-coated thread fastening adhesive.

[0013] Furthermore, it also includes two detachable sleeves, with a detachable sleeve corresponding to the middle of the outer side of each end plate. The upper and lower ends of the end plate are provided with flanges facing outwards. The flanges are used to support the detachable sleeves, and the detachable sleeves are used to place the first connecting bolts.

[0014] Furthermore, the connection structure includes a fixing sleeve and a second connecting bolt. The fixing sleeve is welded to the flanges at the upper and lower ends of the end plate, and the second connecting bolt sequentially connects the support plate, the fixing sleeve, and the bottom support structure.

[0015] Furthermore, the bottom support structure includes multiple box-shaped longitudinal beams, which are arranged longitudinally and evenly below the two end plates.

[0016] Furthermore, the end plate and the side plate are fixed together by welding or riveting.

[0017] Compared with the prior art, the housing structure for a heavy-duty truck battery system described in this utility model has the following advantages:

[0018] 1. The lateral clamping mechanism uses two lateral tie rods to fix the side plate, achieving lateral support for the battery cell and improving the lateral stability of the entire enclosure structure, preventing side plate deformation or displacement. The two symmetrically arranged lateral tie rods ensure that the side plate bears uniform clamping force in the vertical direction, distributing external pressure, reducing stress concentration at a single point of stress, and extending the service life of the structure. Adjusting the position and length of the tie rods allows for flexible configuration for battery cells of different sizes or structures, increasing the adaptability and versatility of the design.

[0019] 2. The longitudinal clamping mechanism applies clamping force to the end plate through longitudinal tie rods, enhancing the overall strength of the module, effectively supporting the battery module, and increasing durability. The longitudinal clamping effectively utilizes space, allowing the cells to fit more closely together, ensuring performance while saving space, contributing to system miniaturization and weight reduction. The clamping plate nuts, along with anti-slip washers and pre-coated thread-locking adhesive, further ensure that the longitudinal tie rods do not loosen under vibration conditions, improving safety and reliability.

[0020] 3. The connection structure includes a fixing sleeve and connecting bolts, providing a robust mechanical connection and enhancing the overall strength and stability of the enclosure. Welding or riveting ensures a tight fit between the end plate and the flange, preventing loosening and displacement. Attached Figure Description

[0021] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0022] Figure 1 This is a schematic diagram of a housing structure for a heavy-duty truck battery system according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the transverse clamping mechanism and the longitudinal clamping mechanism described in the embodiment of this utility model;

[0024] Figure 3 This is a schematic diagram of the clamping nut structure described in an embodiment of the present utility model;

[0025] Figure 4 This is a schematic diagram of the welding connection between the side plate and the end plate according to an embodiment of the present utility model;

[0026] Figure 5 This is a schematic diagram of the riveting connection between the side plate and the end plate according to an embodiment of the present utility model;

[0027] Figure 6 This is a schematic diagram of the heating element structure according to an embodiment of the present invention.

[0028] Explanation of reference numerals in the attached figures:

[0029] 101. Support plate; 201. End plate; 301. Bottom support structure; 401. Removable sleeve; 501. Fixed sleeve; 601. Longitudinal tie rod; 602. Transverse tie rod; 603. Clamping nut; 701. Side plate; 702. Welding position; 703. Rivet; 801. Intermediate heating element; 802. Bottom heating element. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0031] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] A housing structure for a heavy-duty truck battery system, such as Figure 1As shown, the system includes a support plate 101, a bottom support structure 301, a transverse clamping mechanism, a longitudinal clamping mechanism, a middle heating element 801, a bottom heating element 802, two end plates 201, two side plates 701, and four connecting structures. The two end plates 201 are symmetrically arranged between the support plate 101 and the bottom support structure 301, and the two side plates 701 are symmetrically arranged front and back, with each side plate 701 having its front and rear ends connected to a corresponding end plate. The four connecting structures are evenly distributed on the top of the support plate 101, sequentially connecting the end plates 201 and the bottom support structure 301. The middle heating element 801 is vertically arranged between the two end plates 201, located in the middle of the end plates 201, while the bottom heating element 802 is horizontally arranged above the bottom support structure 301. The two side plates 701 are connected by the transverse clamping mechanism, and the two end plates 201 are connected by the longitudinal clamping mechanism. The end plates 201 and side plates 701 are fixed by welding.

[0035] like Figure 2 As shown, the lateral clamping mechanism includes two lateral pull rods 602, which are symmetrically arranged vertically. The lateral pull rods 602 are located in the middle of the side plate 701, and their front and rear ends are detachably connected to a side plate 701. The clamping function of the lateral pull rods 602 allows the battery cells on both sides of the heating element to fit more closely to it. The bottom heating element 802, under the action of the elastic body, fits more tightly to the bottom of the battery cell. These two structural features significantly improve the quality of the heat transfer interface and increase heat conduction efficiency.

[0036] like Figure 2 As shown, the longitudinal clamping mechanism includes two longitudinal tie rods 601, which are symmetrically arranged vertically. The longitudinal tie rods 601 are located in the middle of the end plate 201, and the left and right ends of each longitudinal tie rod 601 are detachably connected to one end plate 201. The longitudinal clamping mechanism also includes four clamping nuts 603. The end of each longitudinal tie rod 601 is connected and fixed to the end plate 201 through a clamping nut 603. The inner side of the locking end of the clamping nut 603 is provided with an anti-slip pad, and the locking end of the clamping nut 603 is provided with pre-coated thread-locking adhesive.

[0037] The longitudinal clamping mechanism and the transverse clamping mechanism make the battery cells more compactly arranged and fixed together. The length of the longitudinal tie rod 601 is adjustable. By adjusting its length, the compressive stress of the buffer foam between the battery cells can be kept within a reasonable range, improving the safety and cycle life of the battery. In addition, by adjusting the length of the tie rod, the longitudinal tie rod 601 generates a constraint force on the middle of the battery module, which compensates for the weak constraint of the battery cells in the middle of the end plate 201. While maintaining the uniform force on the battery cells, the overall strength of the module is improved.

[0038] It also includes two detachable sleeves 401. Each end plate 201 has a corresponding detachable sleeve 401 at the middle of its outer side. The upper and lower ends of the end plate 201 are provided with flanges facing outward. The flanges are used to support the detachable sleeves 401. The detachable sleeves 401 are used to place the first connecting bolt.

[0039] The connection structure includes a fixing sleeve 501 and second connecting bolts. The fixing sleeve 501 is welded to the upper and lower ends of the end plate 201. The second connecting bolts sequentially connect the support plate 101, the fixing sleeve 501, and the bottom support structure 301. The second connecting bolts pass through the support plate 101 and the end plate 201 from top to bottom and connect to the projection weld nuts on the longitudinal beam of the housing. The support plate 101 at the top of the module fixes the heads of the four second connecting bolts on a single plane, i.e., the top connection of the module is a "flat plate connection" structure. This structure makes the module a very strong whole, especially highlighting its structural advantages when the battery cell swells. This structure also has a dual reinforcement function, which not only enhances the overall strength of the module assembly but also ensures the strength of the top BDU support plate 101, making the installation of BDU components more reliable. The compact structure saves space for component placement and also helps to achieve weight reduction.

[0040] The bottom support structure 301 includes multiple box-shaped longitudinal beams, which are evenly arranged longitudinally below the two end plates 201.

[0041] How this example works

[0042] A sealing gasket is provided between the box structure and the box cover, and they are connected by multiple bolts. The battery module assembly is located inside the box, and a support plate 101 is located above the battery module assembly. The support plate 101 is equipped with a power management module and a protection circuit.

[0043] Battery module assembly steps: Install end plate 201 (insulating sheets should be pasted on the inside of end plate 201 before installation), install the battery center heating plate, install longitudinal tie rod 601 (insulation treatment should be applied to the tie rod), stack the battery cells (the battery cells should be arranged in the specified direction before stacking, and cushioning foam should be pasted in appropriate positions), press the battery cells to the specified size using tooling, install the left and right side plates 701 (insulating sheets are pasted on the inside of side plates 701 during installation), and install transverse tie rod 602 (the tie rod is insulated). Begin welding (or riveting) the left and right side plates 701 to the end plate 201, and weld the busbar assembly. Install support plate 101 (insulating sheets are pasted on the bottom of support plate 101), install BDU electrical components, install the detachable sleeve of end plate 201, install the bottom heating plate 802 of the battery module, install the bottom insulating sheet, and after the battery module assembly is completed, use connectors to install the module assembly on the longitudinal beam of the housing.

[0044] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A housing structure for a heavy-duty truck battery system, characterized in that: It includes a support plate (101), a bottom support structure (301), a transverse clamping mechanism, a longitudinal clamping mechanism, a middle heating plate (801), a bottom heating plate (802), two end plates (201), two side plates (701), and four connecting structures; The two end plates (201) are symmetrically arranged between the support plate (101) and the bottom support structure (301), and the two side plates (701) are symmetrically arranged front and back. The front and back ends of each side plate (701) are connected to one of the end plates. The four connecting structures are evenly distributed on the top of the support plate (101), and the connecting structures are sequentially connected to the end plate (201) of the support plate (101) and the bottom support structure (301); The intermediate heating element (801) is vertically disposed between the two end plates (201), the intermediate heating element (801) is located in the middle of the end plates (201), and the bottom heating element (802) is horizontally disposed above the bottom support structure (301); The two side plates (701) are connected by the transverse clamping mechanism, and the two end plates (201) are connected by the longitudinal clamping mechanism.

2. The housing structure for a heavy-duty truck battery system according to claim 1, characterized in that: The transverse clamping mechanism includes two transverse pull rods (602), which are arranged symmetrically in the upper and lower parts. The transverse pull rods (602) are located in the middle of the side plate (701), and the front and rear ends of the transverse pull rods (602) are detachably connected to one of the side plates (701).

3. The housing structure for a heavy-duty truck battery system according to claim 1, characterized in that: The longitudinal clamping mechanism includes two longitudinal tie rods (601), which are arranged symmetrically vertically. The longitudinal tie rods (601) are located in the middle of the end plate (201), and the left and right ends of the longitudinal tie rods (601) are detachably connected to one end plate (201).

4. The housing structure for a heavy-duty truck battery system according to claim 3, characterized in that: The longitudinal clamping mechanism also includes four clamping nuts (603). The end of each longitudinal tie rod (601) is connected and fixed to the end plate (201) through a clamping nut (603). The inner side of the locking end of the clamping nut (603) is provided with an anti-slip pad, and the locking end of the clamping nut (603) is provided with pre-coated thread fastening adhesive.

5. A housing structure for a heavy-duty truck battery system according to claim 3, characterized in that: It also includes two detachable sleeves (401), and a detachable sleeve (401) is provided on the middle of the outer side of each end plate (201). The upper and lower ends of the end plate (201) are provided with flanges facing outwards. The flanges are used to support the detachable sleeves (401). The detachable sleeves (401) are used to place the first connecting bolt.

6. A housing structure for a heavy-duty truck battery system according to claim 5, characterized in that: The connection structure includes a fixed sleeve (501) and a second connecting bolt. The fixed sleeve (501) is welded to the flanges of the upper and lower ends of the end plate (201). The second connecting bolt connects the support plate (101), the fixed sleeve (501) and the bottom support structure (301) in sequence.

7. A housing structure for a heavy-duty truck battery system according to claim 6, characterized in that: The bottom support structure (301) includes multiple box-shaped longitudinal beams, which are arranged longitudinally and evenly below the two end plates (201).

8. A housing structure for a heavy-duty truck battery system according to claim 5, characterized in that: The end plate (201) and the side plate (701) are fixed by welding or riveting.

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