A quick-change battery pack protection type assembly structure

Abstract

This utility model relates to the field of battery pack protection technology, specifically to a protective assembly structure for a quick-change battery pack. It includes a battery pack body and a protective assembly mechanism. The protective assembly mechanism includes a buffer base, side boxes, a top cover, fixing bolts, and anti-loosening washers. The buffer base, side boxes, and top cover are assembled to form a protective mechanism for the battery pack body, thus protecting it from damage by moisture and dust. The fixing bolts are used to connect and fix the top cover and buffer base to both sides of the side boxes. During the driving process of a new energy vehicle, the frame transmits vibrations to the buffer base, which absorbs the vibrations and prevents them from directly affecting the side boxes, thus avoiding loosening of the fixing bolts and loosening of the washers. This further strengthens the effect of the fixing bolts connecting the buffer base, side boxes, and top cover, thereby solving the problem that existing quick-change battery pack protective assembly structures are easily affected by vibration, causing screws to loosen and damaging the sealing gap.

Description

Technical Field

[0001] This utility model relates to the field of battery pack protection technology, and in particular to a protective assembly structure for a quick-change battery pack. Background Technology

[0002] With the global energy transition and increasing environmental protection requirements, new energy vehicles (especially electric vehicles) have become the mainstream direction of industrial development. As the core component of electric vehicles, the performance of the power battery (such as range, safety, and lifespan) directly determines the vehicle's competitiveness. The quick-swap battery pack protective assembly structure is a structure used for power batteries in new energy vehicles, designed to stably and reliably support the internal components of the battery pack and provide excellent waterproof and dustproof protection.

[0003] Currently, existing technology CN208014759U discloses a protective assembly structure for a quick-change battery pack, including a base and a housing assembly fitted onto the base. The base is a box-shaped structure with an open top. The housing assembly is fixedly connected to the base, forming an accommodating chamber. At least one annular sealing ring mounting groove is machined along each side wall of the base, and an O-ring is provided in each of these grooves. The O-rings are interference-fitted with both the base and the housing assembly. One side of the housing assembly has an integrally formed side box with a positive terminal connector mounting port and a negative terminal connector mounting port. This invention provides stable and reliable support for the internal components of the battery pack and also offers excellent waterproof and dustproof performance.

[0004] However, the base of the aforementioned quick-swap battery pack protective assembly structure is connected to the housing assembly by an array of screws. However, vibrations during the operation of new energy vehicles may cause the screws to loosen, damaging the sealing gap and affecting the protective performance of the protective assembly structure. Utility Model Content

[0005] The purpose of this utility model is to provide a protective assembly structure for quick-change battery packs, which aims to solve the problem that existing protective assembly structures for quick-change battery packs are easily affected by vibration, causing screws to loosen and damaging the sealing gap.

[0006] To achieve the above objectives, this utility model provides a protective assembly structure for a quick-change battery pack, including a battery pack body and a protective assembly mechanism. The protective assembly mechanism includes a buffer base, a side box, a top cover, fixing bolts, and anti-loosening washers. The buffer base is disposed at the bottom of the battery pack body, the side box is disposed on the outside of the battery pack body, the top cover is assembled on the side of the side box away from the buffer base, the fixing bolts are respectively attached to the buffer base and the side box and are located on both sides of the side box, and the anti-loosening washers are sleeved on the outside of the fixing bolts.

[0007] The protective assembly mechanism further includes a sealing ring and a handle. The sealing ring is fixedly connected to the side box and is located on both sides of the side box. The handle is assembled on the outside of the side box.

[0008] The buffer base includes a connecting plate, a spring, a buffer rod, and a base plate. The base plate is assembled to the bottom of the side box. The buffer rod is fixedly connected to the base plate and located on the side of the base plate away from the side box. The connecting plate is fixedly connected to the buffer rod and located on the side of the buffer rod away from the base plate. The spring is sleeved on the outside of the buffer rod.

[0009] The fixing bolt includes a fixing bolt and a rotating head. The fixing bolt is respectively connected to the base plate and the side box and is located on both sides of the side box. The rotating head is fixedly connected to the fixing bolt and is located on one side of the fixing bolt.

[0010] The top cover includes a top cover body and a pull rod. The top cover body is assembled on the top of the side box, and the pull rod is assembled on the top of the top cover body.

[0011] This utility model discloses a protective assembly structure for a quick-change battery pack. The buffer base, the side box, and the top cover are assembled to form a protective mechanism for the battery pack body, thereby protecting the battery pack body from damage by moisture and dust. The fixing bolts are used to connect and fix the top cover and the buffer base to both sides of the side box. During the driving process of the new energy vehicle, the frame will transmit vibration to the buffer base, which will buffer and absorb the vibration, thus preventing the vibration from directly acting on the side box and causing the fixing bolts to loosen. The setting of the loosening washer further strengthens the effect of the fixing bolts connecting the buffer base, the side box, and the top cover, thereby solving the problem that the existing quick-change battery pack protective assembly structure is easily affected by vibration, causing the screws to loosen and the sealing gap to be damaged. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of a protective assembly structure for a quick-change battery pack according to this utility model.

[0014] Figure 2 This is a schematic diagram of the battery pack body of a quick-change battery pack protective assembly structure according to this utility model.

[0015] Figure 3 This is a longitudinal sectional view of a protective assembly structure for a quick-change battery pack according to this utility model.

[0016] Figure 4 yes Figure 3 A magnified view of detail A.

[0017] In the diagram: 1-Battery pack body, 2-Protective assembly mechanism, 21-Buffer base, 22-Side box, 23-Top cover, 24-Fixing bolt, 25-Anti-loosening washer, 26-Sealing ring, 27-Handle, 211-Connecting plate, 212-Spring, 213-Buffer rod, 214-Base plate, 231-Top cover body, 232-Pull rod, 241-Fixing bolt, 242-Rotating head. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0019] Please see Figures 1 to 4 This utility model provides a protective assembly structure for a quick-change battery pack, including a battery pack body 1 and a protective assembly mechanism 2. The protective assembly mechanism 2 includes a buffer base 21, a side box 22, a top cover 23, a fixing bolt 24, and an anti-loosening washer 25. The buffer base 21 is disposed at the bottom of the battery pack body 1, the side box 22 is disposed on the outside of the battery pack body 1, the top cover 23 is assembled on the side of the side box 22 away from the buffer base 21, the fixing bolt 24 is respectively connected to the buffer base 21 and the side box 22, and is located on both sides of the side box 22. The anti-loosening washer 25 is sleeved on the outside of the fixing bolt 24.

[0020] In this embodiment, the buffer base 21, the side box 22, and the top cover 23 are assembled to form a protective mechanism for the battery pack body 1, thereby protecting the battery pack body 1 from damage by moisture and dust. The fixing bolts 241 are used to connect and fix the top cover 23 and the buffer base 21 to both sides of the side box 22. During the driving process of the new energy vehicle, the frame will transmit vibration to the buffer base 21, which will buffer and consume the vibration, thereby preventing the vibration from directly acting on the side box 22 and causing the fixing bolts 24 to loosen. The anti-loosening washers 25 further enhance the effect of the fixing bolts 24 in connecting the buffer base 21, the side box 22, and the top cover 23, thereby solving the problem that the existing quick-change battery pack protective assembly structure is easily affected by vibration, causing the screws to loosen and the sealing gap to be damaged.

[0021] Furthermore, the protective assembly mechanism 2 also includes a sealing ring 26 and a handle 27. The sealing ring 26 is fixedly connected to the side box 22 and is located on both sides of the side box 22. The handle 27 is assembled on the outside of the side box 22.

[0022] In this embodiment, the sealing ring 26 is provided to enhance the airtightness of the connection between the side box 22, the buffer base 21 and the top cover 23, and to ensure that the battery pack body 1 is not damaged by moisture and dust. The handle 27 is provided to facilitate workers to lift and carry the assembled battery pack body 1 and the protective assembly mechanism 2.

[0023] Furthermore, the buffer base 21 includes a connecting plate 211, a spring 212, a buffer rod 213, and a base plate 214. The base plate 214 is assembled to the bottom of the side box 22. The buffer rod 213 is fixedly connected to the base plate 214 and is located on the side of the base plate 214 away from the side box 22. The connecting plate 211 is fixedly connected to the buffer rod 213 and is located on the side of the buffer rod 213 away from the base plate 214. The spring 212 is sleeved on the outside of the buffer rod 213.

[0024] In this embodiment, the connecting plate 211 is fixed to the frame with bolts, providing installation conditions for the buffer rod 213. The base plate 214 is inserted into the bottom of the side box 22 and connected to the side box 22 through the fixing bolt 24. The frame transmits vibration to the connecting plate 211, and the connecting plate 211 then transmits the vibration to the buffer rod 213 for buffering. The buffer rod 213 is a commercially available damping rod, which achieves the effect of buffering vibration by compressing the buffer medium inside. The spring 212 further enhances the buffering effect of the buffer rod 213 on vibration, preventing the battery pack body 1 and the side box 22 inside the side box 22 from being affected by vibration.

[0025] Furthermore, the fixing bolt 24 includes a fixing bolt 241 and a rotating head 242. The fixing bolt 241 is respectively connected to the base plate 214 and the side box 22, and is located on both sides of the side box 22. The rotating head 242 is fixedly connected to the fixing bolt 241 and is located on one side of the fixing bolt 241.

[0026] In this embodiment, the fixing bolt 241 is used to connect the top cover 23 and the bottom plate 214 to both sides of the side box 22. The rotating head 242 is provided so that workers can rotate the fixing bolt 24, which allows for faster disassembly and assembly of the battery pack body 1 compared to traditional screws.

[0027] Furthermore, the top cover 23 includes a top cover body 231 and a pull rod 232. The top cover body 231 is mounted on the top of the side box 22, and the pull rod 232 is mounted on the top of the top cover body 231.

[0028] In this embodiment, the top cover body 231 is inserted into the side box 22 and fixed to the top of the side box 22 by the fixing bolt 241. The pull rod 232 is provided to facilitate the pulling out of the top cover body 231 when the battery pack body 1 is disassembled and assembled.

[0029] The above-disclosed embodiments are merely preferred embodiments of a quick-change battery pack protective assembly structure of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments, and equivalent variations made in accordance with the claims of this application, still fall within the scope of this application.

Claims

1. A protective assembly structure for a quick-swap battery pack, characterized in that... ； It includes a battery pack body and a protective assembly mechanism, wherein the protective assembly mechanism includes a buffer base, a side box, a top cover, a fixing bolt, and an anti-loosening washer; The buffer base is located at the bottom of the battery pack body, the side box is located on the outside of the battery pack body, the top cover is assembled on the side box away from the buffer base, the fixing bolts are respectively connected to the buffer base and the side box and are located on both sides of the side box, and the anti-loosening washers are sleeved on the outside of the fixing bolts.

2. The quick-change battery pack protective assembly structure as described in claim 1, characterized in that... ； The protective assembly mechanism also includes a sealing ring and a handle. The sealing ring is fixedly connected to the side box and is located on both sides of the side box. The handle is assembled on the outside of the side box.

3. The quick-change battery pack protective assembly structure as described in claim 1, characterized in that... ； The buffer base includes a connecting plate, a spring, a buffer rod, and a base plate. The base plate is assembled to the bottom of the side box. The buffer rod is fixedly connected to the base plate and located on the side of the base plate away from the side box. The connecting plate is fixedly connected to the buffer rod and located on the side of the buffer rod away from the base plate. The spring is sleeved on the outside of the buffer rod.

4. The quick-change battery pack protective assembly structure as described in claim 3, characterized in that... ； The fixing bolt includes a fixing bolt and a rotating head. The fixing bolt is respectively connected to the base plate and the side box and is located on both sides of the side box. The rotating head is fixedly connected to the fixing bolt and is located on one side of the fixing bolt.

5. The protective assembly structure for the quick-change battery pack as described in claim 1, Its characteristics are: The top cover includes a top cover body and a pull rod. The top cover body is assembled to the top of the side box, and the pull rod is assembled to the top of the top cover body.

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