TPU (thermoplastic polyurethane) protective sleeve

By designing a TPU protective sleeve and utilizing TPU material and a honeycomb briquette hole connecting plate, the problems of existing protective sleeves being bulky and uneven were solved, achieving wear resistance and stable installation.

CN224191971UActive Publication Date: 2026-05-01DONGGUAN WELL PACKAGING MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN WELL PACKAGING MATERIALS CO LTD
Filing Date
2025-06-11
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing protective cases rely on increased thickness for impact resistance, resulting in bulkiness and poor wear resistance. The surface is also uneven during magnetic charging, affecting the service life.

Method used

The TPU protective sleeve, consisting of a TPU shell and a connecting plate with honeycomb holes, combined with limit blocks and positioning components, ensures surface flatness and stable installation.

Benefits of technology

It improves the wear resistance and service life of the protective sleeve, while maintaining a smooth surface and enhancing the stability and cushioning performance of the equipment inside the sleeve.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of protective jackets, in particular to a TPU (thermoplastic polyurethane) protective jacket which comprises a protective jacket main body, a limiting block and a positioning piece, the limiting block is arranged in the middle of the protective sleeve body, and the positioning piece is arranged at the corner of the protective sleeve body. The protective sleeve body comprises a shell. The limiting block is fixed to the middle of the inner wall of the protective sleeve body. The positioning piece comprises a connecting plate and a connecting pad; the connecting plates are distributed on the surface of the protective sleeve main body, the number of the connecting plates is three, the connecting pad is adhered to the surface of any group of connecting plates, the protective sleeve main body is made of a TPU material, the model of the protective sleeve main body is TPU 90A-288, the connecting pad is made of a TPU material, honeycomb briquette holes are formed in the connecting pad, fixing columns are fixed on the lower surfaces of the connecting plates, and the connecting plates are fixed on the lower surfaces of the fixing columns. The fixing column is sleeved with a fixing pipe. The protective sleeve has the advantages of being simple in structure, reasonable in design and capable of effectively keeping the flatness of the surface of the protective sleeve and prolonging the service life of the protective sleeve.
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Description

A TPU protective case Technical Field

[0001] This utility model relates to the field of protective sleeve technology, specifically a TPU protective sleeve. Background Technology

[0002] With the widespread use of portable electronic devices such as smartphones and tablets, users are increasingly demanding protection and impact resistance for their devices. As a result, protective cases have become an essential accessory.

[0003] Existing protective cases rely on increased thickness for impact resistance, resulting in bulky cases and poor wear resistance. Furthermore, existing mobile phones have magnetic plates attached to the back for magnetic charging, but these magnetic plates have a certain thickness, which can cause uneven surfaces and deformation of the protective case, affecting its lifespan. To address these issues, the inventor designed a TPU protective case. Summary of the Invention

[0004] The purpose of this utility model is to provide a TPU protective case that has the advantages of simple structure, reasonable design, and can effectively maintain the flatness of the protective case surface and extend the service life of the protective case, thus solving the problems mentioned in the above technical background.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a TPU protective case, which includes a protective case body, a limiting block, and a positioning element; the limiting block is disposed in the middle of the protective case body, and the positioning element is disposed at the corner of the protective case body;

[0006] The protective sleeve body includes a shell, and a limiting block is fixed in the middle of the inner wall of the protective sleeve body; the positioning component includes a connecting plate and a connecting pad; the connecting plates are distributed on the surface of the protective sleeve body, and there are three connecting plates in total, and the connecting pad is pasted on the surface of any group of the connecting plates.

[0007] Preferably, the housing is made of TPU material, and the housing model is TPU90A-288.

[0008] Preferably, the connecting pad is made of TPU material, and the connecting pad has honeycomb pores inside.

[0009] Preferably, a fixing post is fixed to the lower surface of the connecting plate, and a fixing tube is sleeved on the outside of the fixing post, with the surface of the fixing tube fixed to the inner wall of the protective sleeve body.

[0010] Preferably, the protective cover body further includes buttons and connecting holes, with the buttons distributed on both sides of the housing and the connecting holes located at the bottom of the housing and inside one side of the housing.

[0011] Preferably, a camera hole is provided inside the housing on the side away from the connection hole, and no positioning element is provided on the corner of the housing near the camera hole.

[0012] Preferably, the inner wall of the housing is fixed with a limiting frame, and the limiting frame is distributed outside the camera hole.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model provides a TPU protective case, which includes a protective case body, a limiting block, and a positioning component; the limiting block is located in the middle of the protective case body, and the positioning component is located at the corner of the protective case body. The overall structure is simple and reasonably designed. By using TPU90A-288 material for the shell, the protective case body has the characteristics of high elasticity, wear resistance, and low temperature resistance. Furthermore, the setting of the connecting plate maintains the flatness of the shell surface and extends the service life of the protective case body.

[0015] 2. This utility model, through the connection plate with honeycomb briquette holes, not only reduces the weight of the connection pad, but also avoids scratches caused by friction between the equipment and the shell during installation. After the equipment is installed, it increases the friction between the equipment and the protective sleeve body, thereby stably placing the equipment inside the protective sleeve. Attached Figure Description

[0016] Figure 1 is a three-dimensional schematic diagram of this utility model;

[0017] Figure 2 is a front view of this utility model;

[0018] Figure 3 is a structural diagram of the positioning component of this utility model;

[0019] Figure 4 is a cross-sectional view of the positioning component of this utility model.

[0020] The reference numerals and names in the figure are as follows:

[0021] 1. Protective cover body; 11. Shell; 12. Button; 13. Connecting hole; 14. Camera hole; 2. Limiting block; 3. Positioning component; 31. Fixing tube; 32. Fixing column; 33. Connecting plate; 34. Connecting pad; 35. Honeycomb briquette hole; 4. Limiting frame. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0024] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0025] Please refer to Figures 1 to 4. One embodiment of this utility model is a TPU protective cover, which includes a protective cover body 1, a limiting block 2, and a positioning member 3; the limiting block 2 is disposed in the middle of the protective cover body 1, and the positioning member 3 is disposed at the corner of the protective cover body 1.

[0026] The protective sleeve body 1 provides main protection, and the limiting block 2 is used to accurately position the magnet ring in the required position;

[0027] The protective sleeve body 1 includes a shell 11, and a limiting block 2 is fixed in the middle of the inner wall of the protective sleeve body 1; the positioning component 3 includes a connecting plate 33 and a connecting pad 34; the connecting plates 33 are distributed on the surface of the protective sleeve body 1, and there are three connecting plates 33 in total; the connecting pad 34 is pasted on the surface of any set of connecting plates 33.

[0028] The housing 11 is made of TPU material, and the model number of housing 11 is TPU90A-288;

[0029] The housing 11 is in direct contact with the surface of the equipment, preventing scratches and collisions. Furthermore, the TPU90A-288 material allows the main body of the protective case 1 to provide highly elastic cushioning against the impact of drops.

[0030] The connecting pad 34 is made of TPU material, and the connecting pad 34 has honeycomb holes 35 inside;

[0031] The connecting pad 34 is used to increase friction, thereby fixing the equipment more stably in the required position, and the design of the honeycomb briquette hole 35 reduces the weight of the connecting plate 33 and enhances the cushioning performance.

[0032] A fixing post 32 is fixed on the lower surface of the connecting plate 33, and a fixing tube 31 is sleeved on the outside of the fixing post 32. The surface of the fixing tube 31 is fixed to the inner wall of the protective sleeve body 1.

[0033] The fixing tube 31 is used to connect with the fixing post 32, thereby fixing the connecting plate 33 inside the housing 11;

[0034] The protective cover body 1 also includes buttons 12 and connecting holes 13. The buttons 12 are distributed on both sides of the housing 11, and the connecting holes 13 are opened at the bottom of the housing 11 and inside one side of the housing 11.

[0035] Button 12 is the button position of the device to ensure normal operation, while connection hole 13 facilitates the connection between the charging box and the device, as well as the buttons for controlling the mobile phone;

[0036] A camera hole 14 is provided inside the housing 11 on the side away from the connection hole 13, and no positioning part 3 is provided on the corner of the housing 11 near the camera hole 14;

[0037] The camera hole 14 is precisely aligned with the device's camera to ensure that the shooting function is not affected;

[0038] A limiting frame 4 is fixed to the inner wall of the housing 11, and the limiting frame 4 is distributed outside the camera hole 14;

[0039] Limiting frame 4 restricts camera movement and prevents dust from entering the protective cover body 1 due to gaps;

[0040] Working principle: When it is necessary to assemble the positioning component 3, first fix the fixing tube 31 to the inner wall of the housing 11, then drip glue into the inside of the fixing tube 31, and then insert the fixing post 32 into the inside of the fixing tube 31, so that the connecting plate 33 with the connecting pad 34 is restricted inside the housing 11.

[0041] When it is necessary to place a mobile phone, under the restriction of the connecting plate 33, the mobile phone is inserted into the housing 11 so that the magnetic ring is placed on the outside of the limiting block 2. And under the setting of the limiting frame 4, the gap between the camera and the camera hole 14 is avoided.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A TPU protective case, characterized in that, include: The protective sleeve body (1), the limiting block (2), and the positioning component (3) are provided. The limiting block (2) is located in the middle of the protective sleeve body (1), and the positioning component (3) is located at the corner of the protective sleeve body (1). The protective sleeve body (1) includes a shell (11), and the limiting block (2) is fixed in the middle of the inner wall of the protective sleeve body (1). The positioning component (3) includes a connecting plate (33) and a connecting pad (34). The connecting plates (33) are distributed on the surface of the protective sleeve body (1), and there are three connecting plates (33). The connecting pad (34) is pasted on the surface of any one of the connecting plates (33).

2. The TPU protective case according to claim 1, characterized in that, The housing (11) is made of TPU material, and the model of the housing (11) is TPU90A-288.

3. A TPU protective case according to claim 1, characterized in that, The connecting pad (34) is made of TPU material, and the connecting pad (34) has honeycomb pores (35) inside.

4. A TPU protective case according to claim 1, characterized in that, The lower surface of the connecting plate (33) is fixed with a fixing post (32), and a fixing tube (31) is sleeved on the outside of the fixing post (32). The surface of the fixing tube (31) is fixed to the inner wall of the protective sleeve body (1).

5. A TPU protective case according to claim 1, characterized in that, The protective cover body (1) also includes a button (12) and a connecting hole (13). The button (12) is distributed on both sides of the housing (11), and the connecting hole (13) is opened at the bottom of the housing (11) and inside one side of the housing (11).

6. A TPU protective case according to claim 1, characterized in that, A camera hole (14) is provided inside the side of the housing (11) away from the connection hole (13), and no positioning element (3) is provided on the corner of the housing (11) near the camera hole (14).

7. A TPU protective case according to claim 1, characterized in that, The inner wall of the housing (11) is fixed with a limiting frame (4), and the limiting frame (4) is distributed outside the camera hole (14).