An antistatic plastic housing

Abstract

This utility model provides an antistatic plastic shell, belonging to the technical field of plastic shells. It includes a shell, an antistatic tube disposed in the center of the shell, and a placement groove formed on the surface of the shell. Several antistatic tubes are evenly spaced. This utility model utilizes a four-layer composite shell structure, with the outer layer providing mechanical protection (50-80 kg / m²). 3 The high-density honeycomb sponge layer effectively absorbs impact energy, the 2-3mm silicone layer enhances cushioning performance, and the 0.05-0.1mm antistatic spray coating ensures long-lasting electrostatic protection. The antistatic tube innovatively uses a carbon nanotube coating combined with a carbon fiber / Kevlar hybrid layer to achieve excellent electrostatic dissipation and electromagnetic shielding effects. The 0.2-0.5mm thermoplastic elastomer sealing layer ensures structural airtightness, and the conductive rubber pad placed in the groove provides an additional electrostatic discharge channel. The overall structure maintains lightweight while also being impact-resistant, providing long-lasting antistatic protection and good sealing performance.

Description

Technical Field

[0001] This utility model belongs to the field of plastic shell technology, specifically relating to an antistatic plastic shell. Background Technology

[0002] Antistatic plastic housings are multifunctional protective housings specifically designed to protect electronic components from electrostatic damage. Their core features are that through composite materials and special structural design, they simultaneously achieve functions such as electrostatic protection, shock absorption, and mechanical protection.

[0003] Traditional antistatic plastic housings mainly suffer from limited antistatic functionality, often relying on surface-sprayed conductive coatings that have poor wear resistance and are prone to peeling off, resulting in a significant decrease in electrostatic protection effectiveness after long-term use. Furthermore, they lack shock-absorbing structures, with ordinary housings relying solely on a rigid plastic layer, making them susceptible to damage to internal precision components upon impact. Additionally, their antistatic and shock-resistant properties are disconnected. Therefore, a new type of antistatic plastic housing is proposed. Utility Model Content

[0004] The purpose of this invention is to provide an antistatic plastic shell, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An antistatic plastic housing includes a housing, an antistatic tube disposed in the center of the housing, and a placement groove formed on the surface of the housing, wherein a plurality of antistatic tubes are equally spaced.

[0007] As a preferred embodiment of the present invention, the housing includes an outer layer, a sponge layer fixedly connected to the inner surface of the outer layer, a silicone layer bonded to the side surface of the sponge layer, and a sprayed coating layer sprayed onto the side surface of the silicone layer.

[0008] As a preferred embodiment of the present invention, the antistatic tube includes a protective layer, a braided layer bonded to the inner surface of the protective layer, a sealing layer inserted into the side surface of the braided layer, and a carbon nanolayer disposed on the inner surface of the sealing layer.

[0009] In a preferred embodiment of this invention, the carbon nanolayer is a multi-walled carbon nanotube coating, and the sponge layer is slow-rebound polyurethane foam with a density of 50-80 kg / m³. 3 The surface is equipped with a honeycomb-shaped buffer structure.

[0010] In a preferred embodiment of this utility model, the silicone layer is silicone rubber with a hardness of 40-50A and a thickness of 2-3mm, which is hot-pressed and bonded to the sponge layer; the sprayed layer is a polyurethane antistatic coating with a thickness of 0.05-0.1mm.

[0011] As a preferred embodiment of this invention, the braided layer is a hybrid structure of carbon fiber and Kevlar, with a braiding density of 8-12 stitches / cm. 2 .

[0012] In a preferred embodiment of this utility model, the sealing layer is a thermoplastic elastomer film with a thickness of 0.2-0.5 mm, and the inner wall of the placement groove is provided with a conductive rubber pad.

[0013] Compared with the prior art, the beneficial effects of this utility model are: through the combined use of a four-layer composite shell structure, the outer layer provides mechanical protection, 50-80kg / m 3 The high-density honeycomb sponge layer effectively absorbs impact energy, the 2-3mm silicone layer enhances cushioning performance, and the 0.05-0.1mm antistatic spray coating ensures long-lasting electrostatic protection. The antistatic tube innovatively uses a carbon nanotube coating combined with a carbon fiber / Kevlar hybrid layer to achieve excellent electrostatic dissipation and electromagnetic shielding effects. The 0.2-0.5mm thermoplastic elastomer sealing layer ensures structural airtightness, and the conductive rubber pad placed in the groove provides an additional electrostatic discharge channel. The overall structure maintains lightweight while also being impact-resistant, providing long-lasting antistatic protection and good sealing performance. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 3 This is a cross-sectional view of the antistatic tube of this utility model;

[0018] Figure 4 This is a cross-sectional view of the shell structure of this utility model.

[0019] In the diagram: 101, shell; 102, antistatic tube; 103, placement slot; 101a, outer layer; 101b, sponge layer; 101c, silicone layer; 101d, spray coating layer; 102a, protective layer; 102b, braided layer; 102c, sealing layer; 102d, carbon nanotube layer. Detailed Implementation

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0023] Example

[0024] Reference Figure 1-4 This is an embodiment of the present invention, which provides an antistatic plastic shell, comprising:

[0025] The housing 101, the antistatic tube 102 disposed in the center of the housing 101, and the placement groove 103 opened on the surface of the housing 101, with several antistatic tubes 102 arranged at equal intervals.

[0026] The housing 101 includes an outer layer 101a, a sponge layer 101b fixedly connected to the inner surface of the outer layer 101a, a silicone layer 101c bonded to the side surface of the sponge layer 101b, and a sprayed layer 101d sprayed onto the side surface of the silicone layer 101c.

[0027] The antistatic tube 102 includes a protective layer 102a, a braided layer 102b bonded to the inner surface of the protective layer 102a, a sealing layer 102c inserted into the side surface of the braided layer 102b, and a carbon nanotube layer 102d disposed on the inner surface of the sealing layer 102c.

[0028] Specifically, through the coordinated use of multiple layers, external impacts are first blocked by the outermost layer 101a of the shell 101, and then by 50-80 kg / m 3A high-density honeycomb sponge layer 101b absorbs and buffers stress, a 2-3mm silicone layer 101c further disperses stress, and electrostatic protection is achieved through a dual-channel system. A 0.05-0.1mm antistatic spray coating 101d on the surface of the shell 101 provides basic protection, while the centrally equidistantly distributed antistatic tubes 102 play a core role. An outer protective layer 102a resists mechanical damage, a carbon fiber / Kevlar hybrid layer forms a conductive network, a sealing layer 102c ensures structural integrity, and the innermost carbon nanotube coating efficiently conducts static electricity. A conductive rubber pad in the placement slot 103 provides an additional path for static electricity release.

[0029] The carbon nanolayer 102d is a multi-walled carbon nanotube coating, and the sponge layer 101b is slow-rebound polyurethane foam with a density of 50-80 kg / m³. 3 The surface is equipped with a honeycomb-shaped buffer structure.

[0030] The silicone layer 101c is made of silicone rubber with a hardness of 40-50A and a thickness of 2-3mm. It is hot-pressed to the sponge layer 101b. The sprayed layer 101d is a polyurethane antistatic coating with a thickness of 0.05-0.1mm.

[0031] The 102b braided layer is a blend of carbon fiber and Kevlar, with a braiding density of 8-12 stitches / cm. 2 .

[0032] The sealing layer 102c is a thermoplastic elastomer film with a thickness of 0.2-0.5mm, and the inner wall of the placement groove 103 is provided with a conductive rubber pad.

[0033] It should be noted that when an external impact occurs, 50-80 kg / m 3 A dense, honeycomb-like slow-rebound polyurethane foam layer first absorbs energy, forming a gradient buffer with a 2-3mm thick silicone layer 101c with a hardness of 40-50A. Electrostatic protection is achieved through a dual-pathway system: a 0.05-0.1mm polyurethane antistatic spray coating 101d provides surface protection, while the built-in antistatic tube 102 contains 8-12 pins / cm. 2 A high-density carbon fiber / Kevlar braided layer constructs a conductive network, a multi-walled carbon nanotube coating enables efficient electrostatic dissipation, a 0.2-0.5mm thermoplastic elastomer film sealing layer 102c ensures structural integrity, and a conductive rubber pad within the placement groove 103 forms an auxiliary discharge channel. Through the combined use of mechanical shock absorption, electrostatic conduction, and structural sealing, these functional layers achieve impact resistance and durable antistatic properties within a total thickness of 5-8mm.

[0034] During use, the multi-layered buffer structure provides a cushioning effect of 50-80 kg / m³. 3The honeycomb-shaped slow-rebound polyurethane foam layer preferentially absorbs impact energy, and the elastic deformation of the 2-3mm silicone layer 101c further disperses stress, achieving more than 80% impact energy dissipation; the 0.05-0.1mm polyurethane antistatic spray coating 101d forms a surface charge dissipation layer, while the carbon fiber / Kevlar hybrid conductive network in the antistatic tube 102 and the multi-walled carbon nanotube coating form a three-dimensional conductive path, which, together with the conductive rubber pad in the placement groove 103, forms a complete electrostatic release system; the 0.2-0.5mm thermoplastic elastomer sealing layer 102c maintains the structural integrity and ensures that each functional layer works stably within a compact space of 5-8mm.

[0035] In summary, a multi-layered composite structure is adopted, with a weight of 50-80 kg / m³. 3 The honeycomb-shaped slow-rebound polyurethane foam layer can absorb more than 80% of the impact energy. Combined with the 2-3mm silicone layer 101c with a hardness of 40-50A, it forms a gradient buffer, significantly improving shock resistance. The 0.05-0.1mm polyurethane antistatic spray coating 101d, together with the carbon fiber / Kevlar hybrid conductive network and multi-walled carbon nanotube coating in the antistatic tube 102, improves the static dissipation efficiency by more than 60%. The 0.2-0.5mm thermoplastic elastomer sealing layer 102c ensures the airtightness of the structure and forms a complete static discharge path with the conductive rubber pad in the placement groove 103. The overall structure integrates multiple protective functions within an ultra-thin thickness of 5-8mm. It is 50% lighter than traditional metal antistatic shells and has excellent impact resistance, durable antistatic properties and environmental sealing, making it particularly suitable for the protection of precision electronic equipment.

[0036] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0037] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0038] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An antistatic plastic casing, characterized in that: include, The housing (101), the antistatic tube (102) disposed in the center of the housing (101), and the placement groove (103) opened on the surface of the housing (101) are provided, and the antistatic tube (102) is provided in a plurality of equidistant locations.

2. The antistatic plastic shell according to claim 1, characterized in that: The housing (101) includes an outer layer (101a), a sponge layer (101b) fixedly connected to the inner surface of the outer layer (101a), a silicone layer (101c) bonded to the side surface of the sponge layer (101b), and a sprayed layer (101d) sprayed onto the side surface of the silicone layer (101c).

3. The antistatic plastic shell according to claim 2, characterized in that: The antistatic tube (102) includes a protective layer (102a), a braided layer (102b) bonded to the inner surface of the protective layer (102a), a sealing layer (102c) inserted into the side surface of the braided layer (102b), and a carbon nanolayer (102d) disposed on the inner surface of the sealing layer (102c).

4. The antistatic plastic shell according to claim 3, characterized in that: The carbon nanolayer (102d) is a multi-walled carbon nanotube coating, and the sponge layer (101b) is a slow-rebound polyurethane foam with a density of 50-80 kg / m³. 3 The surface is equipped with a honeycomb-shaped buffer structure.

5. The antistatic plastic housing according to claim 4, characterized in that: The silicone layer (101c) is silicone rubber with a hardness of 40-50A and a thickness of 2-3mm, and is hot-pressed to the sponge layer (101b). The sprayed layer (101d) is a polyurethane antistatic coating with a thickness of 0.05-0.1mm.

6. The antistatic plastic housing according to claim 5, characterized in that: The braided layer (102b) is a hybrid structure of carbon fiber and Kevlar, with a braiding density of 8-12 stitches / cm. 2 .

7. The antistatic plastic housing according to claim 6, characterized in that: The sealing layer (102c) is a thermoplastic elastomer film with a thickness of 0.2-0.5mm, and the inner wall of the placement groove (103) is provided with a conductive rubber pad.

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