A high-strength plastic housing for a battery

Abstract

The utility model relates to a kind of high-strength plastic shell applied to storage battery in the field of battery shell, including lower shell and upper cover, the lower shell outside is provided with reinforcing rib, the reinforcing rib includes first frame and second frame by from top to bottom interval arrangement and the rib of several being arranged between the first frame and the second frame, the upper cover is installed on the lower shell upper end by buckle. The utility model adds reinforcing rib on the outside of outer shell, effectively strengthens the structural strength of battery shell, reduces the damage risk due to impact or extrusion, first frame and second frame are connected with rib, ensure the uniform distribution of stress, prevent stress concentration phenomenon, so as to avoid the breakage of battery shell. The mode of buckle fixation makes the assembly process of upper cover not need any tool auxiliary, simplifies assembly step, improves assembly efficiency.

Description

Technical Field

[0001] This utility model relates to the field of battery casings, specifically to a high-strength plastic casing for storage batteries. Background Technology

[0002] The battery casing refers to the physical structure that wraps around the battery to protect the internal cells, circuits, and other components. It is usually made of plastic or composite materials to ensure the safe operation of the battery and prevent external factors from damaging it.

[0003] Currently, battery casings on the market are generally weak and their assembly is cumbersome. In actual use, impacts or pressure can easily damage or deform the casing, leading to electrolyte leakage from the battery cell. This can not only cause injury to people but also pollute the environment. Therefore, this invention proposes a high-strength plastic casing for storage batteries. Summary of the Invention

[0004] This invention provides a high-strength plastic casing for storage batteries to solve the problems mentioned in the background art.

[0005] The purpose of this utility model is achieved by the following means: a high-strength plastic shell for storage batteries, including a lower shell and an upper cover, wherein the lower shell is provided with reinforcing ribs on the outside, the reinforcing ribs include a first frame and a second frame arranged at intervals from top to bottom and a plurality of ribs arranged between the first frame and the second frame, and the upper cover is installed on the upper end of the lower shell by a snap fastener.

[0006] Furthermore, the lower end of the second frame is provided with a downwardly extending guide portion, the lower end of which tapers inward.

[0007] Furthermore, a honeycomb grid is provided at the lower end of the lower housing.

[0008] Furthermore, both ends of the buckle are provided with notches.

[0009] Furthermore, a limiting wall is provided at the lower end of the upper cover, and the limiting wall abuts against the inner side of the lower housing.

[0010] Furthermore, a sealing gasket is provided around the outer side of the limiting wall, and a sponge layer is provided on the upper end of the sealing gasket, with the upper end of the sponge layer connected to the upper cover.

[0011] Furthermore, the cross-section of the sponge layer is set to a trapezoidal shape.

[0012] The beneficial effects of this utility model are as follows: By adding reinforcing ribs to the outside of the outer casing, the structural strength of the battery casing is effectively enhanced, reducing the risk of damage caused by impact or compression. The first and second frames connect the ribs to each other, ensuring uniform stress distribution and preventing stress concentration, thereby avoiding damage to the battery casing. The snap-fit ​​fixing method eliminates the need for any tools during the assembly process of the top cover, simplifying the assembly steps and improving assembly efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the first structure of a high-strength plastic shell for storage batteries according to the present invention;

[0014] Figure 2 This is a schematic diagram of the second structure of a high-strength plastic shell for storage batteries according to the present invention;

[0015] Figure 3 This is a first cross-sectional view of a high-strength plastic casing for storage batteries according to this utility model;

[0016] Figure 4 This is a second cross-sectional view of a high-strength plastic casing for storage batteries according to this utility model;

[0017] Figure 5 for Figure 4 Enlarged diagram of A in the middle;

[0018] The labels in the attached diagram are as follows: 1-top cover, 2-lower housing, 3-battery body, 4-honeycomb grid, 5-clasp, 6-sealing gasket, 7-notch, 8-sponge layer, 9-handle, 10-limiting wall, 11-rib, 12-positive and negative terminals, 13-waterproof ring, 14-second frame, 15-first frame, 16-guide section. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] In this embodiment, refer to Figures 1-5 The present invention relates to a high-strength plastic casing for storage batteries, comprising a lower casing 2 and an upper cover 1. The upper cover 1 and the lower casing 2 are preferably made of plastic or other materials with excellent toughness. The lower casing 2 has reinforcing ribs on its outer side. These reinforcing ribs include a first frame 15 and a second frame 14 spaced apart from top to bottom, and several ribs 11 disposed between the first frame 15 and the second frame 14. The design of the reinforcing ribs significantly improves the overall strength of the casing and effectively prevents deformation or damage under external forces.

[0021] Furthermore, the first frame 15 connects the upper ends of the ribs 11, and the second frame 14 connects the lower ends of the ribs 11. Multiple ribs 11 are interconnected to form a more robust overall structure. This not only enhances the impact resistance of the battery casing, but also improves the connection strength between the ribs 11 and ensures that stress is evenly distributed throughout the casing, preventing damage caused by localized stress concentration. This design allows the battery casing to better maintain its structural integrity and functionality when subjected to external forces, thereby extending its service life.

[0022] Furthermore, the lower end of the second frame 14 is provided with a downwardly extending guide portion 16, the lower end of which tapers inward. The design of the guide portion 16 allows the battery to be effectively guided to the correct position during battery installation, thus eliminating the need for the user to deliberately align the battery compartment and significantly improving the convenience of battery installation.

[0023] Furthermore, a honeycomb grid 4 is provided at the lower end of the lower shell 2. The honeycomb structure can effectively disperse and absorb the impact force from the outside. This honeycomb structure design not only reduces the weight of the entire lower shell 2, but also enhances the structural strength and rigidity of the lower shell 2.

[0024] Furthermore, the upper cover 1 is mounted on the upper end of the lower housing 2 via snap fasteners 5. Both ends of the snap fasteners 5 have notches 7, which provide better extensibility for the sides of the upper cover 1, allowing deformation while maintaining elasticity. During installation, after the upper cover 1 is in place, it resets, and the snap fasteners 5 engage with the upper end of the lower housing 2, thus completing the locking mechanism. This snap fastener design simplifies the battery casing assembly process, eliminating the need for complex installation methods such as screws or glue, enabling manufacturers to quickly and efficiently assemble the battery and effectively reducing production costs.

[0025] Furthermore, the lower end of the upper cover 1 is provided with a limiting wall 10, the outer side of which abuts against the inner side of the lower housing 2. When installing the upper cover 1, the limiting wall 10 is aligned with the inner side of the lower housing 2 and inserted. The design of the limiting wall 10 ensures that the upper cover 1 can be accurately positioned during installation, thereby avoiding structural instability caused by installation deviation. At the same time, the tight fit between the limiting wall 10 and the inner side of the lower housing 2 further improves the sealing effect between the upper cover 1 and the lower housing 2.

[0026] Furthermore, a battery body 3 is housed within the lower housing 2. A positive and negative terminal connector 12 is located at the upper end of the battery body 3. The positive and negative terminal connector 12 connects to the positive and negative terminals within the battery body 3, facilitating connection to external devices for power supply. The positive and negative terminal connector 12 is made of a material with excellent conductivity to ensure the stability and efficiency of current transmission. The positive and negative terminal connector 12 extends to the upper end of the upper cover 1 through a through-hole. A sealing ring is installed within the through-hole to prevent gaps between the positive and negative terminal connector 12 and the upper cover 1.

[0027] Furthermore, a sealing gasket 6 is arranged around the outer side of the limiting wall 10, and a sponge layer 8 is provided on the upper end of the sealing gasket 6. The sponge layer 8 is connected to the upper cover 1. The design of the sponge layer 8 allows the sealing gasket 6 to have more room to move. The thickness of the sponge layer 8 and the sealing gasket 6, as well as the depth of the slot, cooperate with each other. When the upper cover 1 and the lower housing 2 are assembled, the upper end of the lower housing 2 presses the sealing gasket 6 and the sponge layer 8 upward. After the upper cover 1 is installed in place, the buckle 5 is fixed to the lower housing 2. The sealing gasket 6 and the sponge layer 8 provide upward support for the upper cover 1, so that the buckle 5 is firmly fastened in the lower housing 2 to prevent it from falling off. The sealing gasket 6 and the waterproof ring 13 together provide the battery with good waterproof and dustproof performance, effectively preventing moisture, dust and other impurities in the external environment from entering the battery casing, thereby ensuring the safe operation and long service life of the battery.

[0028] Furthermore, the cross-section of the sponge layer 8 adopts a trapezoidal structure that is narrow at the top and wide at the bottom, which improves the stability during compression and can also disperse the pressure by utilizing the inclined side of the trapezoidal structure when subjected to external force, thus preventing the sponge layer 8 from being damaged due to excessive local pressure.

[0029] Furthermore, opening the casing requires the use of a special tool inserted into the gap between the upper cover 1 and the lower casing 2 to pry it open. This prevents users or non-professionals from accidentally opening the battery, which could lead to leakage of electrolyte or other harmful substances, thus avoiding injury to personnel or environmental pollution. This also improves the safety and reliability of the product.

[0030] In addition, the top of the cover 1 is equipped with a rotatable handle 9. This handle 9 is convenient for users to grip and operate, and its rotatable feature allows the handle 9 to be folded up when not in use to save space.

[0031] The beneficial effects of this utility model are as follows: By adding reinforcing ribs to the outside of the outer casing, the structural strength of the battery casing is effectively enhanced, reducing the risk of damage caused by impact or compression. The first frame 15 and the second frame 14 connect the ribs 11 to each other, ensuring uniform stress distribution and preventing stress concentration, thereby avoiding damage to the battery casing. The snap-fit ​​method of fixing with clips 5 allows the assembly process of the top cover 1 to be completed without any tools, simplifying the assembly steps and improving assembly efficiency.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A high-strength plastic casing for a storage battery, comprising a lower casing (2) and an upper cover (1), characterized in that: The lower housing (2) is provided with reinforcing ribs on the outside. The reinforcing ribs include a first frame (15) and a second frame (14) arranged at intervals from top to bottom, and a number of ribs (11) arranged between the first frame (15) and the second frame (14). The upper cover (1) is installed on the upper end of the lower housing (2) by a buckle (5).

2. The high-strength plastic casing for storage batteries according to claim 1, characterized in that: The lower end of the second frame (14) is provided with a downwardly extending guide portion (16), the lower end of which contracts inward.

3. The high-strength plastic casing for storage batteries according to claim 1, characterized in that: The lower end of the lower housing (2) is provided with a honeycomb grid (4).

4. The high-strength plastic casing for storage batteries according to claim 1, characterized in that: Both ends of the buckle (5) are provided with notches (7).

5. The high-strength plastic casing for a storage battery according to claim 1, characterized in that: The lower end of the upper cover (1) is provided with a limiting wall (10), which abuts against the inner side of the lower shell (2).

6. The high-strength plastic casing for a storage battery according to claim 5, characterized in that: A sealing gasket (6) is provided around the outside of the limiting wall (10), and a sponge layer (8) is provided on the upper end of the sealing gasket (6), with the upper end of the sponge layer (8) connected to the upper cover (1).

7. The high-strength plastic casing for a storage battery according to claim 6, characterized in that: The cross-section of the sponge layer (8) is set as trapezoidal.

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