Shell assembly and energy storage device
By adding a gap between the female stop and the male stop at the corner of the shell assembly, the problem of the plastic shell prone to cracking at the four corners is solved, and the effect of avoiding the risk of cracking and ensuring accurate positioning is achieved.
Patent Information
- Application Number
- CN202421393458.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-18
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-06-18
AI Technical Summary
The existing plastic shells are prone to cracking at the four corners, mainly due to the small design gap of the male and female stops, the difficulty in increasing the wall thickness of the female stops, and the slight interference and stress concentration caused by the molding and assembly tolerance of the plastic parts.
A housing assembly is designed, and the gap between the female stop and the male stop at the corner is greater than the gap at the side, ensuring that the first gap at the corner is 0.5 mm to 1 mm and the second gap at the side is 0.1 mm to 0.2 mm, thereby increasing the gap at the weak corner to avoid the risk of cracking.
By increasing the gap at the corner, the cracking problem of the shell at the corner position is effectively avoided, while ensuring accurate positioning and stable function, without increasing costs, and the implementation is relatively simple.
Smart Images
Figure CN222869181U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of energy storage, in particular to a housing component and an energy storage device. Background Art
[0002] For existing equipment that needs to be sealed internally, the most commonly used structure for the outer shell seal is usually to design a groove on one side of the shell, install a seal inside, and the other side of the shell fits in contact with the groove to compress the seal to the designed thickness, which usually cooperates with the stop design to play a limiting role.
[0003] However, the design of the sealing stopper of the existing plastic shell is subject to the following three limitations: (1) In order to ensure the precise fit of the shell, ensure the uniform appearance gap and prevent misalignment and step difference, the design gap of the male and female stoppers is usually small; (2) The wall thickness of the female stopper is difficult to increase, firstly, space must be left for the seal; secondly, due to the limitations of the plastic injection molding process, if the wall thickness is too thick, it is easy to shrink; (3) The molding and assembly tolerances of plastic parts are difficult to avoid. The larger the product, the greater the size error and assembly fit error, which leads to slight interference between the male and female stoppers. The non-corner part is the entire long side. If interference occurs, there is a margin in the length, which can absorb stress through slight deformation and has a relatively high strength as a whole. However, the corners are small in size, high in rigidity, and stress cannot be released, which is prone to cracking. Based on these three limitations, the existing plastic shell is prone to cracking at the four corners.
[0004] The disclosure of the above background technology content is only used to assist in understanding the concept and technical solution of the utility model. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above content has been disclosed on the filing date of this patent application, the above background technology should not be used to evaluate the novelty and creativity of the present application. Utility Model Content
[0005] In order to solve the above technical problems, the utility model proposes a shell assembly and an energy storage device, which can avoid the problem that the shell is prone to cracking at the corner position.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] In the first aspect, the utility model discloses a shell assembly, including a shell base, a seal and a cover body, wherein a first stop is provided at the open end of the shell base, and a second stop is provided at the open end of the cover body, one of the first stop and the second stop is a female stop, and the other is a male stop, and the seal is arranged in the female stop so that when the cover body is closed and connected to the shell base, the male stop abuts against the seal, wherein the gap between the female stop and the male stop is matched, and the first gap between the male stop and the female stop at the corner of the shell base is larger than the second gap between the male stop and the female stop at the side of the shell base.
[0008] Preferably, a first gap between the male stop and the female stop at a corner of the housing base is 0.5 mm to 1 mm.
[0009] Preferably, a second gap between the male stop and the female stop at the side of the housing base is 0.1 mm to 0.2 mm.
[0010] Preferably, the shell base and the cover body are respectively polygonal structures, and chamfered or rounded structures are respectively provided at the corners connecting the edges of the shell base and the cover body, the first gap is provided between the male stop and the female stop at the chamfered or rounded structure of the shell base, and the second gap is provided between the male stop and the female stop at each edge of the shell base.
[0011] Preferably, the first inner gap and the first outer gap between the male stop and the female stop at the corner of the outer shell base together form the first gap, and the second inner gap and the second outer gap between the male stop and the female stop at the side of the outer shell base together form the second gap, wherein the first inner gap is equal to the second inner gap, and the first outer gap is greater than the second outer gap.
[0012] Preferably, a first stop is provided at the entire circle of the opening end of the outer shell base, and a second stop is provided at the entire circle of the opening end of the cover body. The sealing member is a sealing ring, and the sealing ring is arranged in the female stop so that the male stop abuts against the sealing ring when the cover body is closed and connected to the outer shell base.
[0013] Preferably, the shell assembly also includes a plurality of fasteners, a plurality of first fastening holes are opened on the shell base, a plurality of second fastening holes are opened on the cover body, and each fastener passes through the second fastening hole and the second fastening hole respectively and correspondingly to cover and connect the cover body to the shell base.
[0014] Preferably, the first stop is a male stop, and the second stop is a female stop.
[0015] Preferably, the seal includes a first sub-seal and a second sub-seal, the cover body includes a first sub-cover body and a second sub-cover body, the outer shell base is provided with open ends on opposite sides respectively, and the outer shell base is provided with a first sub-male stop and a second sub-male stop on opposite sides respectively, the first sub-cover is provided with a first sub-female stop at the open end, and the second sub-cover is provided with a second sub-female stop at the open end, the first sub-seal is arranged in the first sub-female stop, and the second sub-seal is arranged in the second sub-female stop, so that when the first sub-cover body and the second sub-cover body are respectively covered and connected on both sides of the outer shell base, the first sub-male stop abuts against the first sub-seal, and the second sub-female stop abuts against the second sub-seal.
[0016] In a second aspect, the utility model discloses an energy storage device, comprising the housing assembly described in the first aspect.
[0017] Compared with the prior art, the beneficial effect of the utility model is that the shell assembly proposed by the utility model can ensure accurate positioning, function and appearance by setting the gap between the female stop and the male stop at the corner of the shell to be larger than the gap between the female stop and the male stop at the side. On the other hand, it can effectively avoid the risk of cracking at the weak corners, without any cost increase and is simple to implement.
[0018] In a further solution, the inner gap between the female stop and the male stop at the corner of the shell is consistent with the inner gap between the female stop and the male stop at the side, while the outer gap between the female stop and the male stop at the corner of the shell is set larger than the outer gap between the female stop and the male stop at the side, which can further ensure that the weak corners of the shell are not prone to cracking. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is an exploded schematic diagram of a housing assembly disclosed in a preferred embodiment of the utility model;
[0020] Figure 2 yes Figure 1 A schematic cross-sectional view of the connection between the housing base and the cover of the housing assembly;
[0021] Figure 3 yes Figure 1 A side cross-sectional schematic diagram of a housing assembly in FIG.
[0022] Figure 4 yes Figure 3 A magnified schematic diagram of center A. DETAILED DESCRIPTION
[0023] The following is a detailed description of the implementation of the utility model. It should be emphasized that the following description is only exemplary and is not intended to limit the scope and application of the utility model.
[0024] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. In addition, connection can be used for both fixing and circuit / signal communication.
[0025] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.
[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.
[0027] like Figure 1 As shown, the first embodiment of the present invention discloses a housing assembly, including a housing base 10, a sealing member 20 and a cover 30, Figure 2 The opening end of the housing base 10 is provided with a male stop 11, the opening end of the cover 30 is provided with a female stop 31, and the seal 20 is arranged in the female stop 31, so that when the cover 30 is closed and connected to the housing base 10, the male stop 11 abuts against the seal 20 and plays a role in compressing the seal 20, combined with Figure 3 and Figure 4 The gap between the female stop 31 and the male stop 11 is matched, and the first gap 50 between the female stop 31 and the male stop 11 at the corner of the cover body 30 is larger than the second gap 60 between the female stop 31 and the male stop 11 at the side of the cover body 30. The housing base 10 and the cover body 30 can be made of plastic materials respectively.
[0028] The outer shell base 10 and the cover body 30 are respectively polygonal structures, and chamfered or rounded structures are respectively provided at the corners connecting the edges of the outer shell base 10 and the cover body 30, a first gap 50 is provided between the female stop 31 and the male stop 11 at the chamfered or rounded structure of the cover body 30, and a second gap 60 is provided between the female stop 31 and the male stop 11 at each edge of the cover body 30.
[0029] In this specific embodiment, the shell base 10 and the cover 30 are rectangular structures, and the male stop 11 and the female stop 31 at the four sides are matched with small gaps to ensure the accurate positioning of the cover 30 and the shell base 10 when they are connected to each other; specifically, the second gap 60 between the female stop 31 and the male stop 11 at the side of the cover 30 is 0.1mm-0.2mm. The design gaps at the four corners are increased to absorb processing and assembly errors to ensure that the female stop 31 is not stressed and thus avoid cracking problems; specifically, the first gap 50 between the female stop 31 and the male stop 11 at the corners of the cover 30 is 0.5mm-1mm.
[0030] Combination Figure 3 and Figure 4 The first inner gap 51 and the first outer gap 52 between the female stop 31 and the male stop 11 at the corner of the cover body 30 jointly form the first gap 50, and the second inner gap 61 and the second outer gap 62 between the female stop 31 and the male stop 11 at the side of the cover body 30 jointly form the second gap 60, wherein the first inner gap 51 is equal to the second inner gap 61, and the first outer gap 52 is greater than the second outer gap 62; wherein, the inner gap at the corner is small and keeps consistent with the position of the four sides, while the outer side is enlarged. Since the inner side is connected with ribs to enhance the strength, it is not easy to crack even if it is a small gap; and the gap at the weak and easy-to-crack part on the outside is enlarged to ensure that the part is not subjected to stress and thus avoid cracking problems.
[0031] A male stop 11 is provided at the entire circle of the opening end of the shell base 10, and a female stop 31 is provided at the entire circle of the opening end of the cover body 30. The seal 20 adopts a sealing ring, and the sealing ring is arranged in the female stop 31, so that the male stop 11 is against the sealing ring when the cover body 30 is closed and connected to the shell base 10.
[0032] The shell assembly further includes a plurality of fasteners 40 , a plurality of first fastening holes are provided on the shell base 10 , a plurality of second fastening holes are provided on the cover body 30 , and each fastener 40 passes through the second fastening hole and the second fastening hole respectively to cover and connect the cover body 30 to the shell base 10 .
[0033] The seal 20 includes a first sub-seal 201 and a second sub-seal 202, and the cover body 30 includes a first sub-cover body 301 and a second sub-cover body 302. The outer shell base 10 is provided with open ends on opposite sides, and the outer shell base 10 is provided with a first sub-male stop and a second sub-male stop on opposite sides. The first sub-cover body 301 is provided with a first sub-female stop at the open end, and the second sub-cover body 302 is provided with a second sub-female stop at the open end. The first sub-seal 201 is arranged in the first sub-female stop, and the second sub-seal 202 is arranged in the second sub-female stop, so that when the first sub-cover body 301 and the second sub-cover body 302 are respectively covered and connected on both sides of the outer shell base 10, the first sub-male stop abuts against the first sub-seal 201, and the second sub-female stop abuts against the second sub-seal 202.
[0034] In the above embodiments, the male stop is arranged at the opening end of the outer shell base 10, and the female stop is arranged at the opening end of the cover body 30; in other embodiments, the male stop may also be arranged at the opening end of the cover body 30, and correspondingly, the female stop is arranged at the opening end of the outer shell base 10.
[0035] The shell assembly proposed in the first embodiment of the utility model ensures precise fitting and uniform appearance gaps by maintaining a small gap at the long side, so as to ensure accurate positioning, function and appearance; and only increases the gap at the weak corner, thereby effectively avoiding the risk of cracking at the weak corner, without any cost increase and simple implementation.
[0036] The second embodiment of the present utility model discloses an energy storage device, including the housing assembly in the first embodiment.
[0037] The background section of the utility model may contain background information about the problem or environment of the utility model, rather than describing the prior art by others. Therefore, the content contained in the background technology section is not an admission of the applicant to the prior art.
[0038] The above content is a further detailed description of the utility model in combination with specific / preferred embodiments, and it cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, it can also make several substitutions or modifications to these described embodiments, and these substitutions or modifications should be regarded as belonging to the protection scope of the utility model. In the description of this specification, the description of the reference terms "an embodiment", "some embodiments", "preferred embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily target the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, in the absence of mutual contradiction, the technical personnel in this field can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples. Although the embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the scope defined by the appended claims.
Claims
1. A housing assembly, characterized in that: It includes a shell base, a sealing member and a cover body, wherein a first stop is provided at the open end of the shell base, and a second stop is provided at the open end of the cover body, one of the first stop and the second stop is a female stop, and the other is a male stop, and the sealing member is arranged in the female stop so that when the cover body is closed and connected to the shell base, the male stop abuts against the sealing member, wherein the gap between the female stop and the male stop is matched, and a first gap between the male stop and the female stop at the corner of the shell base is larger than a second gap between the male stop and the female stop at the side of the shell base.
2. The housing assembly according to claim 1, characterized in that The first gap between the male stop and the female stop at the corner of the shell base is 0.5 mm to 1 mm.
3. The housing assembly according to claim 1, wherein: The second gap between the male stop and the female stop at the side of the shell base is 0.1 mm to 0.2 mm.
4. The housing assembly according to claim 1, wherein: The shell base and the cover body are respectively polygonal structures, and chamfered or rounded structures are respectively arranged at the corners connecting the edges of the shell base and the cover body, the first gap is arranged between the male stop and the female stop at the chamfered or rounded structure of the shell base, and the second gap is arranged between the male stop and the female stop at each edge of the shell base.
5. The housing assembly according to claim 1, wherein: The first inner gap and the first outer gap between the male stop and the female stop at the corner of the outer shell base together form the first gap, and the second inner gap and the second outer gap between the male stop and the female stop at the side of the outer shell base together form the second gap, wherein the first inner gap is equal to the second inner gap, and the first outer gap is greater than the second outer gap.
6. The housing assembly according to claim 1, wherein: A first stop is provided at the entire circle of the opening end of the shell base, and a second stop is provided at the entire circle of the opening end of the cover body. The sealing member is a sealing ring, and the sealing ring is arranged in the female stop so that the male stop abuts against the sealing ring when the cover body is closed and connected to the shell base.
7. The housing assembly according to claim 1, wherein: It also includes a plurality of fasteners, a plurality of first fastening holes are opened on the shell base, a plurality of second fastening holes are opened on the cover body, and each fastener passes through the second fastening hole and the second fastening hole respectively to cover and connect the cover body to the shell base.
8. The housing assembly according to claim 1, wherein: The first stop is a male stop, and the second stop is a female stop.
9. The housing assembly according to claim 8, characterized in that The seal includes a first sub-seal and a second sub-seal, the cover body includes a first sub-cover body and a second sub-cover body, the outer shell base is provided with open ends on opposite sides, and the outer shell base is provided with a first sub-male stop and a second sub-male stop on opposite sides of the open ends, the first sub-cover body is provided with a first sub-female stop at the open end, and the second sub-cover body is provided with a second sub-female stop at the open end, the first sub-seal is arranged in the first sub-female stop, and the second sub-seal is arranged in the second sub-female stop, so that when the first sub-cover body and the second sub-cover body are respectively covered and connected on both sides of the outer shell base, the first sub-male stop abuts against the first sub-seal, and the second sub-female stop abuts against the second sub-seal.
10. An energy storage device, characterized in that: A housing assembly comprising any one of claims 1 to 9.