CN218472186U - Plastic suction shell structure - Google Patents

Abstract

The utility model relates to the technical field of batteries and discloses a plastic-absorbing shell structure. The plastic shell structure includes a top cover, a plastic shell body and fasteners. The top cover is provided with a first installation hole. A mounting part is arranged inside, and a second mounting hole is opened on the mounting part, and a support is connected between the hole wall of the receiving hole and the side wall of the mounting part; the fasteners are sequentially passed through the first mounting hole and the second mounting hole, To cover and fix the upper cover on the plastic shell body. The plastic shell structure is highly integrated with the electrical connection components, which reduces the number and cost of battery module components, and improves the energy density and electrical safety performance of the battery system. Secondly, the structure of the plastic shell is made more stable by setting the supporting parts, which prevents the main body of the plastic shell from sinking when the fastener is pressed, and ensures the stability of the battery module as a whole.

Description

Blister shell structure

technical field

The utility model relates to the technical field of batteries, in particular to a plastic-absorbing shell structure.

Background technique

At present, the new energy vehicle market is developing rapidly. As the power source of new energy vehicles, the safety and reliability of battery modules are crucial to the entire vehicle system.

In the prior art, a plastic shell structure is usually used to fix the electrical connection components. The plastic shell structure includes an upper cover and a plastic shell body, and the electrical connection components are installed on the plastic shell body. After the electrical connection assembly is installed, the upper cover and the plastic shell body are usually sequentially pierced by fasteners to fasten them as a whole. However, due to the thinner body of the plastic shell and the material, it is easy to collapse the body of the plastic shell when the fastener is pressed, so that there is a depression in the body of the plastic shell, which affects the connection between the electrical connection component and the body of the plastic shell. Coordination and connection lead to poor overall stability of the battery module.

Therefore, there is an urgent need to provide a plastic shell structure to solve the above problems.

Utility model content

The purpose of the utility model is to provide a highly integrated plastic shell structure, which is stable in structure, can prevent the plastic shell body from sinking during assembly, and ensure the overall stability of the battery module.

For reaching above-mentioned purpose, the utility model realizes through the following technical solutions:

A blister structure, comprising:

an upper cover, the upper cover is provided with a first mounting hole;

The plastic shell body is used to install the electrical connection component. The plastic shell body is provided with a receiving hole, and a mounting part is provided in the receiving hole, and a second mounting hole is provided in the mounting part. The receiving hole A support is connected between the wall of the hole and the side wall of the installation part;

Fasteners pass through the first installation hole and the second installation hole in order to fix the upper cover on the blister body.

As a preferred solution of the blister shell structure, the number of the support members is set to be multiple, and the plurality of support members are radially distributed around the installation portion.

As a preferred solution of the plastic shell structure, the installation part is a circular truncated structure formed by drafting.

As a preferred solution of the blister shell structure, the number of the first installation holes is set to be multiple, and the plurality of first installation holes are arranged at intervals;

The number of the accommodating holes is set to be multiple, each of the accommodating holes is connected with the mounting part through the support, and each of the mounting parts is provided with the second mounting hole. The second mounting holes are provided in one-to-one correspondence with a plurality of the first mounting holes, and each of the second mounting holes and the corresponding first mounting holes are pierced with the fasteners.

As a preferred solution of the plastic shell structure, a plurality of the first installation holes are arranged in a staggered position, a plurality of the second installation holes are arranged in a staggered position, and each of the second installation holes is connected to the corresponding first installation hole. The hole positions are aligned.

As a preferred solution of the blister shell structure, the fastener is an expansion nail.

As a preferred solution of the plastic shell structure, the plastic shell body is provided with a first accommodating groove, and the first accommodating groove is used for accommodating the aluminum row.

As a preferred solution of the plastic shell structure, two spaced limiting holes are opened on the groove wall of the first accommodating groove, and the limiting holes are used for accommodating the pole of the electric core.

As a preferred solution of the plastic-absorbing shell structure, a positioning column is arranged in the first accommodation groove, and the positioning column can cooperate with the holes on the aluminum row.

As a preferred solution of the blister shell structure, the number of the positioning columns is set to be multiple, and the multiple positioning columns are arranged at intervals.

As a preferred solution of the blister shell structure, a plurality of the positioning columns are arranged in dislocation.

As a preferred solution for the structure of the plastic-absorbing shell, the main body of the plastic-absorbing shell is provided with vent holes.

The beneficial effects of the utility model are:

The plastic-absorbing shell structure provided by the utility model is highly integrated with the electrical connection components, which reduces the number and cost of battery module components, reduces the weight of the battery module, and improves the energy density and electrical safety performance of the battery system. Secondly, by arranging supports around the installation part, the structure of the plastic shell is made more stable, preventing the body of the plastic shell from sinking when the fastener is pressed, which does not affect the fixing of the electrical connection components, and ensures the overall stability of the battery module.

Description of drawings

In order to illustrate the embodiments of the utility model or the technical solutions in the prior art more clearly, a brief introduction will be made below to the accompanying drawings required in the description of the embodiments or the prior art. The accompanying drawings described below are For some embodiments of the present utility model, those skilled in the art can obtain other drawings according to these drawings without any creative effort.

Fig. 1 is the exploded view of the blister shell provided by the embodiment of the present invention;

Fig. 2 is a partial enlarged view of place A in Fig. 1;

Fig. 3 is a bottom view of the blister case provided by the embodiment of the present invention.

In the picture:

1. Upper cover; 11. The first installation hole;

2. Blister shell body; 21. Accommodating hole; 22. Installation part; 221. Second installation hole; 23. Support; 24. First accommodating groove; 25. Limiting hole; 26. Positioning column; 27. Exhaust hole; 28, the second storage tank;

3. Fasteners.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail. It can be understood that the specific embodiments described here are only used to explain the utility model, rather than limit the utility model. In addition, it should be noted that, for the convenience of description, only some structures related to the present utility model are shown in the drawings but not all structures.

In the description of the present utility model, unless otherwise clearly stipulated and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or a Integral; it can be mechanically or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

In the present invention, unless otherwise clearly specified and limited, a first feature being "on" or "below" a second feature may include direct contact between the first and second features, and may also include the first and second features being in direct contact with each other. The features are not in direct contact but through another feature between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

In the description of this embodiment, the terms "up", "down", "left", "right" and other orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operations. It does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in description, and have no special meaning.

As shown in Figures 1 and 2, the present embodiment provides a plastic shell structure, which specifically includes an upper cover 1, a plastic shell body 2 and a fastener 3, and an electrical connection assembly (not shown in the figure) Out) is fixed on the plastic shell body 2, and the upper cover 1 is set on the plastic shell body 2. Wherein, the electrical connection components are aluminum row and FPC, or aluminum row and FFC. The upper cover 1 is provided with a first installation hole 11, and the plastic shell body 2 is provided with a second installation hole 221, and the fastener 3 is sequentially penetrated through the first installation hole 11 and the second installation hole 221 to fix the upper cover 1 On the plastic shell body 2. The upper cover 1, the electrical connection components and the plastic shell body 2 are highly integrated, reducing the number and cost of battery module components, reducing the weight of the battery module, thereby reducing the cost and weight of the battery system, and improving the energy of the battery system density and electrical safety performance.

In this embodiment, the fastener 3 is preferably an expansion nail, which is firmly connected and easy to disassemble. Of course, in other embodiments, the fastener 3 may also be a riveting piece or a screw, as long as the fastening connection between the upper cover 1 and the blister body can be realized.

Further, referring to FIG. 2 , in order to prevent the plastic shell body 2 from collapsing when the fastener 3 is pressed, the plastic shell body 2 is provided with a receiving hole 21 , and a mounting part 22 is arranged in the receiving hole 21 . A second installation hole 221 is opened, and a plurality of support members 23 are connected between the hole wall of the receiving hole 21 and the side wall of the installation portion 22 , and the plurality of support members 23 are radially distributed around the installation portion 22 . The specific number of support members 23 is not specifically limited here, and can be adaptively selected according to actual needs. Exemplarily, the number of support members 23 is set to three. By adopting this arrangement, the structure of the blister case is made more stable, and the plastic case body 2 is prevented from sinking when the fastener 3 is pressed, which does not affect the fixing of the electrical connection components and ensures the overall stability of the battery module.

Preferably, the installation part 22 is a circular truncated structure formed by drafting, and the draft angle is 15°, so that the longitudinal section of the installation part 22 is a trapezoid with a narrow top and a wide bottom, so as to increase the supporting capacity of the installation part 22 and avoid When the fastener 3 is pressed, the mounting part 22 is collapsed.

Further preferably, the blister shell body 2 and the mounting portion 22 and the support member 23 thereon are integrally formed structures processed by blistering technology, and the structure is more stable. The blister process has the advantages of low mold cost, short production period and short mold development time, which greatly reduces product cost and development cycle.

Further, the number of the first mounting holes 11 is set to be multiple, and the multiple first mounting holes 11 are arranged at intervals; correspondingly, the number of the receiving holes 21 is set to be multiple, and each receiving hole 21 passes through a support member 23 A mounting portion 22 is connected, and each mounting portion 22 is provided with a second mounting hole 221, and a plurality of second mounting holes 221 are provided in one-to-one correspondence with a plurality of first mounting holes 11, and each second mounting hole 221 corresponds to a corresponding Fasteners 3 are pierced in the first mounting holes 11 to realize a stable connection between the upper cover 1 and the plastic shell body 2 . In this embodiment, the number of the first mounting holes 11 and the second mounting holes 221 is set to six, distributed in two rows, and each row is provided with three mounting holes.

Preferably, as shown in FIG. 1 and FIG. 2 , six first mounting holes 11 are arranged in misalignment, six second mounting holes 221 are arranged in misalignment, and each second mounting hole 221 is aligned with the corresponding first mounting hole 11 . This setting can prevent workers from making mistakes during installation and improve the production efficiency of products.

Further, as shown in FIG. 2 , a first accommodating groove 24 is opened on the blister body 2 , and the shape of the first accommodating groove 24 is adapted to the shape of the aluminum row for accommodating the aluminum row. The aluminum row is placed in the first accommodating groove 24, and the first accommodating groove 24 can play a role of limiting the aluminum row, which can increase the strength of the entire blister shell structure. In this embodiment, the number of first accommodation grooves 24 is set to be multiple, and the plurality of first accommodation grooves 24 are evenly distributed on both sides of the plastic shell body 2, and the specific number thereof is not specifically limited here. Adaptive selection can be made according to the actual number of aluminum rows.

Further, continuing to refer to FIG. 2 , two spaced limiting holes 25 are provided on the groove wall of each first accommodating groove 24 , and the limiting holes 25 are rectangular for accommodating the pole of the electric core. During installation, it can pre-position the entire plastic shell structure, which is convenient for operators to install.

Further, as shown in FIG. 2 , a positioning column 26 is arranged in the first accommodation groove 24 , and the positioning column 26 can cooperate with the holes on the aluminum row. Preferably, the number of positioning posts 26 is multiple, and the plurality of positioning posts 26 are arranged at intervals, so that the aluminum row and the plastic shell body 2 are further fixed, which greatly improves the stability and reliability of the connection.

Specifically, as shown in Fig. 1 and Fig. 2, two positioning columns 26 are arranged in the first accommodating groove 24 on the lower left and upper right of the plastic shell body 2, and four positioning columns 26 are arranged on the rest, and the four positioning columns 26 are arranged in a staggered position. , not only can pre-position the aluminum row, but also has an error-proof function, which is convenient for workers to install, reduces the error rate, and improves production efficiency.

As a preferred solution, as shown in Figure 3, a plurality of vent holes 27 are opened on the plastic shell body 2 for accommodating the explosion-proof valve of the battery cell, so as to relieve the pressure from the vent hole 27 when the cell heat is out of control, and eliminate The air pressure inside the battery system prevents the battery system from exploding and reduces the risk.

Further, referring to FIG. 2 and FIG. 3 , a second accommodating groove 28 is also provided on the blister body 2, and the second accommodating groove 28 is a strip-shaped channel, and communicates with the first accommodating groove 24 for Pre-position FPC or FFC to facilitate welding and fixing of FPC or FFC.

Apparently, the above-mentioned embodiments of the present utility model are only examples for clearly illustrating the present utility model, rather than limiting the implementation manner of the present utility model. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. All modifications, equivalent replacements and improvements made within the spirit and principles of the utility model shall be included in the protection scope of the claims of the utility model.

Claims (12)

1. A blister shell structure, comprising:

the upper cover (1), wherein the upper cover (1) is provided with a first mounting hole (11);

the plastic suction shell comprises a plastic suction shell body (2) used for installing an electric connection assembly, wherein the plastic suction shell body (2) is provided with an accommodating hole (21), an installation part (22) is arranged in the accommodating hole (21), the installation part (22) is provided with a second installation hole (221), and a support part (23) is connected between the hole wall of the accommodating hole (21) and the side wall of the installation part (22);

the fastener (3) sequentially penetrates through the first mounting hole (11) and the second mounting hole (221) so as to fix the upper cover (1) on the plastic suction shell body (2).

2. The blister shell structure of claim 1, wherein the number of the supporting members (23) is set to be plural, and the plural supporting members (23) are radially distributed centering on the mounting portion (22).

3. The blister shell structure of claim 1, wherein the mounting portion (22) is a truncated cone structure formed by die drawing.

4. The blister shell structure of claim 1, wherein the first mounting holes (11) are provided in a plurality, the plurality of first mounting holes (11) being spaced apart;

the quantity of accommodation hole (21) sets up to a plurality ofly, every all pass through in accommodation hole (21) support piece (23) are connected with installation department (22), every all seted up on installation department (22) second mounting hole (221), it is a plurality of second mounting hole (221) and a plurality of first mounting hole (11) one-to-one sets up, every second mounting hole (221) and corresponding all wear to be equipped with in first mounting hole (11) fastener (3).

5. The blister shell structure of claim 4, wherein a plurality of the first mounting holes (11) are offset, a plurality of the second mounting holes (221) are offset, and each of the second mounting holes (221) is positionally aligned with a corresponding first mounting hole (11).

6. The blister shell structure of claim 1, wherein the fastener (3) is an expansion nail.

7. The plastic suction shell structure of claim 1, wherein the plastic suction shell body (2) is provided with a first receiving groove (24), and the first receiving groove (24) is used for receiving an aluminum row.

8. The plastic suction shell structure according to claim 7, wherein two spacing holes (25) are formed in a wall of the first accommodating groove (24), and the spacing holes (25) are used for accommodating poles of the battery cell.

9. The blister shell structure of claim 7, wherein the first receiving cavity (24) has locating posts (26) disposed therein, the locating posts (26) being engageable with holes in the aluminum row.

10. The blister shell structure of claim 9, wherein the positioning posts (26) are provided in a plurality in number, and the positioning posts (26) are spaced apart.

11. The blister shell structure of claim 10, wherein the plurality of positioning posts (26) are offset.

12. The blister shell structure according to any of claims 1 to 11, wherein the blister shell body (2) is provided with an air vent (27).

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