Box body assembly of battery pack

Abstract

The utility model relates to the technical field of battery packs, and particularly discloses a box body assembly of a battery pack, which comprises a box body and an upper cover, the box body is provided with a containing cavity, the containing cavity is used for placing a battery module, the top of the box body is provided with an opening used for being communicated with the containing cavity, and the upper cover is rotatably arranged at the opening of the box body. A control piece and a locking piece are arranged on the box body, the locking piece is movably arranged on the inner side of the box body, a positioning groove is formed in one side of the upper cover, the locking piece can stretch into the positioning groove, the control piece is hinged to the outer side of the box body, and the control piece can be rotated to drive the locking piece to rotate by a preset angle in the first direction or the second direction. The upper cover is provided with a positioning groove, so that the upper cover is locked or unlocked, that is, after the locking piece extends into the positioning groove, the control piece can drive the locking piece to rotate and adjust the angle of the locking piece, the purpose of locking or unlocking the upper cover is achieved, operation is convenient, the opening can be rapidly opened or closed, and the battery module located in the containing cavity can be conveniently maintained.

Description

Technical Field

[0001] This utility model relates to the technical field of battery packs, and specifically to a battery pack housing assembly. Background Technology

[0002] With the rapid development of new energy technologies, especially electric vehicles, the demand for battery packs is increasing. A battery pack generally includes a housing and battery modules located inside the housing. The housing is used to shield the battery modules from external damage or corrosion by dust, water and other impurities.

[0003] In existing technologies, the casing has openings to facilitate the placement of the battery module into the casing's cavity, and a cover is provided at the opening. However, the cover is connected and fixed by bolts or simple snap-fit ​​structures. Bolt connections rely on external tools for disassembly and assembly, which is cumbersome and affects the disassembly and replacement of the battery module. Simple snap-fit ​​structures have poor locking performance and are prone to loosening due to vibration or impact, resulting in poor stability. Summary of the Invention

[0004] This utility model addresses the aforementioned problems and aims to provide a battery pack housing assembly with a top cover hinged to the opening. By rotating the control component, the locking component can be rotated, thereby locking or unlocking the top cover. It is simple to operate, can quickly open the housing, and has good stability.

[0005] To achieve the above objectives, this utility model provides a battery pack housing assembly, comprising:

[0006] A housing having a receiving cavity, the top of the housing having an opening for communicating with the receiving cavity;

[0007] A top cover, which is rotatably disposed at the opening and is used to open or close the opening;

[0008] The housing is equipped with a control component and a locking component. The locking component is movably disposed on the inner side of the housing. A positioning groove is provided on one side of the top cover. The locking component can extend into the positioning groove. The control component is hinged to the outer side of the housing. Rotating the control component can cause the locking component to rotate by a preset angle along a first direction or a second direction to lock or unlock the top cover.

[0009] According to the above-described battery pack housing assembly, when the control member rotates clockwise, it can drive the locking member to descend and rotate in a first direction to lock the top cover; when the control member rotates counterclockwise, it can drive the locking member to rise and rotate in a second direction to unlock the top cover.

[0010] According to the above-described battery pack housing assembly, the locking member is provided as two, and the two locking members are symmetrically arranged on the same side of the housing. The upper cover is provided with two positioning grooves that correspond one-to-one with the two locking members.

[0011] The control element is simultaneously connected to both locking elements and can synchronously drive the displacement of the two locking elements.

[0012] According to the above-described battery pack housing assembly, one side of the top cover is hinged to the housing via a pivot, and the other side of the top cover is provided with a latch, with the positioning groove located on the latch.

[0013] According to the above-described battery pack housing assembly, the upper end of the locking member has outwardly protruding locking portions on opposite sides, and the bottom of the locking portions can fit against the top of the buckle to lock the upper cover.

[0014] According to the above-described battery pack housing assembly, the width of the positioning groove is greater than the diameter of the upper end of the locking member and less than the distance between the two locking parts, and the length of the positioning groove is greater than the distance between the two locking parts.

[0015] According to the above-described battery pack housing assembly, the locking member includes a base and a locking bolt. The base is fixed to the inner side of the housing, and the threaded lower end of the locking bolt is movably disposed in the base. The operating member is threadedly engaged with the lower end of the locking bolt, and the two locking parts are located on both sides of the upper end of the locking bolt.

[0016] According to the above-described battery pack housing assembly, the control component includes a control handle and a connecting rod. One end of the control handle is hinged to the housing, and one end of the connecting rod is threadedly connected to the end of the control handle hinged to the housing. The other end of the connecting rod can extend into the base and engage with the lower thread of the locking bolt.

[0017] According to the above-described battery pack housing assembly, the control component further includes a gear, which is hinged to and fixedly connected to one end of the housing with the control handle, and one end of the connecting rod is engaged with the gear.

[0018] According to the above-described battery pack housing assembly, the outer side of the housing is provided with a receiving groove, and the control handle has a retracted position that is housed in the receiving groove and a control position that is extended outside the receiving groove.

[0019] This utility model has the following beneficial effects:

[0020] 1. The top cover is rotatably set at the opening of the box, and the rotation of the control component can drive the locking component to rotate, thereby locking or unlocking the top cover. This allows for quick fixing and unlocking of the top cover, is simple to operate, improves the efficiency of its assembly and disassembly, and facilitates the maintenance of the battery module inside the box.

[0021] 2. There are two locking components, which can move synchronously to lock and unlock the top cover simultaneously. The locking stability is good and can prevent the locking components from loosening due to vibration.

[0022] 3. A receiving groove is provided on the outer surface of the box. This receiving groove can be used to realize the hidden design of the control handle, improve the overall appearance, and effectively avoid accidental operation. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the assembly of the top cover and the box body in an embodiment;

[0024] Figure 2 This is a schematic diagram of the internal structure of the box in an embodiment;

[0025] Figure 3 yes Figure 2 A partially enlarged structural diagram.

[0026] In the picture:

[0027] 100. Housing; 110. Receiving cavity; 120. Control component; 121. Control handle; 122. Linkage rod; 130. Locking component; 131. Locking part; 132. Base; 133. Locking bolt; 140. Receiving groove; 200. Top cover; 210. Positioning groove; 220. Lock. Detailed Implementation

[0028] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0029] like Figure 1-3As shown, a battery pack housing assembly includes a housing 100 and a top cover 200. The housing 100 has a receiving cavity 110 for placing a battery module. An opening for communicating with the receiving cavity 110 is provided on the top of the housing 100, allowing the battery module to be placed into and removed through the opening. The top cover 200 is rotatably disposed at the opening of the housing 100, and is used to open or close the opening. When the opening is open, the battery module can be loaded or unloaded. After the battery module is placed into the receiving cavity 110, the top cover 200 can be rotated to fit against the housing 100, thereby closing the opening and protecting the battery module inside the housing 100. In this embodiment, since the top cover 200 is hinged to the housing 100, it will not detach from the housing 100, thus preventing the top cover 200 from being lost.

[0030] To lock the top cover 200 to the housing 100 and prevent the top cover 200 from rotating and opening the opening, a control member 120 and a locking member 130 are provided on the housing 100. The locking member 130 is movably disposed inside the housing 100. A positioning groove 210 is provided on one side of the top cover 200, and the locking member 130 can extend into the positioning groove 210. The control member 120 is hinged to the outside of the housing 100. Rotating the control member 120 can drive the locking member 130 to rotate a preset angle in a first direction or a second direction to lock or unlock the top cover 200. That is, after the locking member 130 extends into the positioning groove 210, the control member 120 can drive the locking member 130 to rotate and adjust the angle of the locking member 130 to achieve the purpose of locking or unlocking the top cover 200. The operation is convenient and can quickly open or close the opening, which is convenient for maintaining the battery module located in the receiving cavity 110.

[0031] In this embodiment, when the control member 120 rotates clockwise, the control member 120 can drive the locking member 130 to descend and rotate in the first direction simultaneously. After the top of the locking member 130 passes through the positioning groove 210, its rotation causes the wider side to abut against the top of the positioning groove 210. Its descent can drive the upper cover 200 to descend synchronously, thereby locking the upper cover 200. When the control member 120 rotates counterclockwise, the control member 120 can drive the locking member 130 to rise and rotate in the second direction simultaneously. The rise of the locking member 130 can disengage the upper end of the locking member 130 from the top of the positioning groove 210, and make its wider side correspond to the positioning groove 210, thereby unlocking the upper cover 200.

[0032] In this embodiment, in order to achieve a rotatable connection between the top cover 200 and the box body 100, the top cover 200 is hinged to the box body 100 via a pivot and can rotate around the pivot. A latch 220 is provided on the side of the top cover 200 away from the pivot, and the positioning groove 210 is arranged on the latch 220. That is, the locking member 130 can be engaged with or separated from the latch 220 to achieve locking or unlocking of the top cover 200 and the box body 100.

[0033] Specifically, in this embodiment, the upper end of the locking member 130 is provided with outwardly protruding locking portions 131 on opposite sides. The distance between the outer sides of the two locking portions 131 is greater than the diameter of the locking member 130. Therefore, after rotating a preset angle in the first direction, the bottom of the locking portion 131 can fit with the top of the latch 220. Its descent can drive the latch 220 to descend together and restrict the locking portion 131 from disengaging from the latch 220, so as to lock the upper cover 200.

[0034] In this embodiment, the width of the positioning groove 210 is greater than the diameter of the upper end of the locking member 130 and less than the distance between the two locking parts 131. The length of the positioning groove 210 is greater than the distance between the two locking parts 131. This ensures that the upper end of the locking member 130 can pass smoothly through the positioning groove 210. After rotating a preset angle, the arrangement direction of the two locking parts 131 is perpendicular to the length direction of the positioning groove 210. At this time, the locking member 130 is locked on the latch 220 and cannot disengage from the latch 220, thus locking the upper cover 200. When the arrangement direction of the two locking parts 131 is consistent with the length direction of the positioning groove 210, the two locking parts 131 can pass through the positioning groove 210 to disengage the locking member 130 from the latch 220, thereby unlocking the upper cover 200.

[0035] To ensure the stability of the locking mechanism, two locking components 130 are provided, symmetrically arranged on the same side of the housing 100, i.e., the side away from the pivot. Two positioning grooves 210, corresponding one-to-one with the two locking components 130, are provided on the upper cover 200. That is, two latches 220 are provided on the upper cover 200, each with a positioning groove 210. During the locking process of the upper cover 200, the two locking components 130 can be simultaneously inserted into the two positioning grooves 210 and perform locking actions synchronously. In this embodiment, the control component 120 can simultaneously connect with both locking components 130 and synchronously drive them to perform lifting and rotating actions, achieving synchronous action of the two locking components 130 and synchronously locking and unlocking of the upper cover 200.

[0036] Specifically, the locking component 130 includes a base 132 and a locking bolt 133. The base 132 is fixed inside the housing 100 to avoid increasing the overall area occupied by the battery pack and improve aesthetics. The threaded lower end of the locking bolt 133 is movably disposed inside the base 132. The control component 120 is threadedly engaged with the lower end of the locking bolt 133. Two locking parts 131 are located on both sides of the upper end of the locking bolt 133. Rotating the control component 120 can drive the locking bolt 133 to rotate. Due to the threaded connection, the locking bolt 133 will move up and down in the vertical direction while rotating.

[0037] To enable the control component 120 to drive the locking bolt 133 to rotate, the control component 120 includes a control handle 121 and a connecting rod 122. One end of the control handle 121 is hinged to the housing 100 and located on the outside of the housing 100 for easy manual operation. One end of the connecting rod 122 is threadedly connected to the end of the control handle 121 that is hinged to the housing 100. The other end of the connecting rod 122 can extend into the base 132 and engage with the lower thread of the locking bolt 133. In this embodiment, the rotation of the control handle 121 drives the connecting rod 122 to translate. During the translation, the connecting rod 122 drives the locking bolt 133 to rotate and lift. The lifting and rotation directions can be controlled by the direction of the thread.

[0038] In order to enable the control handle 121 to rotate and drive the connecting rod 122 to translate, the control component 120 also includes a gear. The gear is fixedly connected to one end of the control handle 121, which is hinged to the housing 100. That is, the gear is driven to rotate synchronously by the rotation of the control component 120. One end of the connecting rod 122 is engaged with the gear. When the gear rotates, it can drive the connecting rod 122 to translate.

[0039] Of course, in this embodiment, the control member 120 is provided with two connecting rods 122. One end of the two connecting rods 122 is simultaneously engaged with the gear, and the other end of the two connecting rods 122 is respectively engaged with the lower thread of the two locking bolts 133. Thus, the two connecting rods 122 can be synchronously driven by a gear, thereby controlling the two locking members 130 to perform synchronous actions.

[0040] Specifically, a receiving groove 140 is provided on the outside of the housing 100. The control handle 121 has a retracted position that is stored in the receiving groove 140 and an extended control position that is outside the receiving groove 140. When the control handle 121 is located in the receiving groove 140, the control handle 121 cannot move due to the limitation of the side of the receiving groove 140, which can effectively avoid the misoperation of the control handle 121 and at the same time prevent the control handle 121 from protruding outside the housing 100, thus improving the overall aesthetic performance.

[0041] In this embodiment, the locking step of the upper cover 200 includes:

[0042] The top cover 200 is in the open state, the control handle 121 is located on the outside of the housing 100, and the locking member 130 is in the unlocked state.

[0043] The user rotates the control handle 121 clockwise, and the control handle 121 drives the connecting rod 122 to move horizontally.

[0044] The translation of the connecting rod 122 causes the locking bolt 133 to rotate and rise, and the locking part 131 at the upper end of the locking bolt 133 gradually enters the positioning groove 210 of the upper cover 200.

[0045] When the locking bolt 133 is rotated to the predetermined angle, the bottom of the locking part 131 fits against the top of the latch 220, the locking part 130 is fully inserted into the positioning groove 210, and the top cover 200 is securely locked.

[0046] The unlocking steps for the top cover 200 include:

[0047] The top cover 200 is locked, and the control handle 121 is located on the outside of the housing 100;

[0048] The user rotates the control handle 121 counterclockwise, and the control handle 121 drives the connecting rod 122 to move horizontally.

[0049] The translation of the connecting rod 122 causes the locking bolt 133 to rotate and descend, and the locking part 131 at the upper end of the locking bolt 133 gradually exits the positioning groove 210 of the upper cover 200.

[0050] When the locking bolt 133 is rotated to the predetermined angle, the upper end of the locking member 130 disengages from the top of the positioning groove 210, and the upper cover 200 can be opened.

[0051] The technical solution of this utility model has been described in detail above with reference to the accompanying drawings. The described embodiments are used to help understand the concept of this utility model. The specific embodiments described herein are merely illustrative examples of the spirit of this utility model. Those skilled in the art to which this utility model pertains can make various modifications or additions to the described specific embodiments or use similar methods to replace them, but without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0052] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0053] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0054] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0055] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A battery pack housing assembly, characterized in that, include: A housing having a receiving cavity, the top of the housing having an opening for communicating with the receiving cavity; A top cover, which is rotatably disposed at the opening and is used to open or close the opening; The housing is equipped with a control component and a locking component. The locking component is movably disposed on the inner side of the housing. A positioning groove is provided on one side of the top cover. The locking component can extend into the positioning groove. The control component is hinged to the outer side of the housing. Rotating the control component can cause the locking component to rotate by a preset angle along a first direction or a second direction to lock or unlock the top cover.

2. The battery pack housing assembly according to claim 1, characterized in that, When the control member rotates clockwise, it can drive the locking member to descend and rotate in a first direction to lock the top cover. When the control member rotates counterclockwise, it can drive the locking member to rise and rotate in a second direction to unlock the top cover.

3. The battery pack housing assembly according to claim 2, characterized in that, The locking element is provided in two parts, and the two locking elements are symmetrically arranged on the same side of the box. The upper cover is provided with two positioning grooves that correspond one-to-one with the two locking elements. The control element is simultaneously connected to both locking elements and can synchronously drive the displacement of the two locking elements.

4. The housing assembly of a battery pack according to claim 1 or 3, characterized in that, One side of the top cover is hinged to the box body via a pivot, and the other side of the top cover is provided with a latch, with the positioning groove located on the latch.

5. The battery pack housing assembly according to claim 4, characterized in that, The upper end of the locking member has outwardly protruding locking portions on opposite sides. The bottom of the locking portion can fit against the top of the buckle to lock the upper cover.

6. The battery pack housing assembly according to claim 5, characterized in that, The width of the positioning groove is greater than the diameter of the upper end of the locking member and less than the distance between the two locking parts, and the length of the positioning groove is greater than the distance between the two locking parts.

7. The battery pack housing assembly according to claim 5, characterized in that, The locking component includes a base and a locking bolt. The base is fixed to the inside of the housing. The threaded lower end of the locking bolt is movably disposed within the base. The control component is threadedly engaged with the lower end of the locking bolt. The two locking parts are located on both sides of the upper end of the locking bolt.

8. The battery pack housing assembly according to claim 7, characterized in that, The control component includes a control handle and a connecting rod. One end of the control handle is hinged to the housing. One end of the connecting rod is threadedly connected to the end of the control handle that is hinged to the housing. The other end of the connecting rod can extend into the base and engage with the lower thread of the locking bolt.

9. The battery pack housing assembly according to claim 8, characterized in that, The control component also includes a gear, which is hinged to one end of the housing and fixedly connected to the control handle, and one end of the connecting rod is engaged with the gear.

10. The battery pack housing assembly according to claim 8, characterized in that, The outer side of the housing is provided with a receiving groove, and the control handle has a retracted position that is stored in the receiving groove and a control position that is extended outside the receiving groove.

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