Hair dryer shell of anti-deformation injection molding product
By setting symmetrical protective plates and sliding sleeves and positioning grooves on the hair dryer housing, the problems of easy deformation and difficult disassembly of the hair dryer housing are solved, thereby improving structural strength and facilitating installation and disassembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUOPENG COATING TECH (HUIZHOU) CO LTD
- Filing Date
- 2025-04-17
- Publication Date
- 2026-04-21
AI Technical Summary
Existing injection-molded hair dryer shells are made of fragile materials, are easily deformed, have low structural strength, and are difficult to install and disassemble internal components.
A blower housing with anti-deformation injection molding is designed, including a front cover and a rear cover. The front cover has symmetrical protective plates on its surface and an inner wall that forms a mounting groove for sliding connection with a sleeve. The inner wall of the sleeve forms a positioning groove for sliding connection with a fixing cylinder, which enhances the structural strength and facilitates the installation and disassembly of internal components through the combination of the sleeve and the fixing cylinder.
It effectively prevents shell deformation, improves structural strength, facilitates the installation and disassembly of internal components, and enhances the thickness and stability of the shell.
Smart Images

Figure CN224140341U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hair dryer housings, specifically a hair dryer housing made of anti-deformation injection molding. Background Technology
[0002] A hair dryer consists of a set of heating wires and a high-speed small fan. When powered on, the heating wires generate heat, and the air blown by the fan passes through the heating wires, turning into hot air. If only the small fan rotates without heating the heating wires, then only air will be blown out, not hot air. The hair dryer casing is the outer shell that protects the components, excluding the heating wires, motor, and fan blades. Injection-molded hair dryer casings refer to those produced through the injection molding process. They possess good toughness and impact resistance, good heat and solvent resistance, and are easy to process and modify.
[0003] Existing injection-molded hair dryer casings have the following drawbacks: The casing materials are relatively fragile and easily deformed by external factors. For example, using low-melting-point plastics (such as PP) for the casing makes it prone to deformation after prolonged use or impact. The structural strength is low, consisting of only a single layer of plastic without necessary reinforcement structures such as ribs or support pillars, making the casing susceptible to deformation or breakage under external force. Secondly, to achieve miniaturization and portability, hair dryers typically have a very compact internal structure. While this compact design improves portability, it also makes the installation and disassembly of internal components (such as motors and fan blades) more difficult. Internal components (such as motors and fan blades) are secured using various methods, such as screws and clips. While these methods are secure and reliable, they also increase the difficulty of disassembly, requiring specific tools or methods. Utility Model Content
[0004] In order to overcome the shortcomings of existing technical solutions, this utility model provides a hair dryer shell made of anti-deformation injection molding, which can effectively solve the technical problems of existing hair dryer shells being prone to deformation, having low structural strength, and having inconvenient components (motor) inside the hair dryer shell to install and disassemble.
[0005] The technical solution adopted by this utility model to solve its technical problem is: a blower shell for anti-deformation injection molded products, including a front cover and a rear cover. The surface of the front cover is provided with two protective plates, which are symmetrically arranged between each other. The inner wall of the front cover is recessed inward to form two mounting grooves, which extend along the length direction of the front cover. A sleeve is provided inside the front cover. The surface of the sleeve protrudes outward to form a mounting block that matches the mounting groove. The mounting block is slidably connected to the mounting groove. The inner wall of the sleeve is recessed inward to form two positioning grooves, which extend along the length direction of the sleeve. A fixing cylinder is provided inside the sleeve. The surface of the fixing cylinder protrudes outward to form a positioning block that matches the positioning groove. The positioning block is slidably connected to the positioning groove.
[0006] Furthermore, a mesh cover is provided at one end of the front cover, and the surface of the front cover is a smooth surface.
[0007] Furthermore, a metal cover is provided at one end of the rear cover, and the surface of the metal cover is provided with several ventilation holes.
[0008] Furthermore, the bottom of the front cover and the rear cover extends to form a handle portion, the surface of the handle portion is movably provided with a number of control buttons, and the bottom of the handle portion is provided with a removable bottom cover.
[0009] Furthermore, one end of the fixed cylinder extends outward to form a connecting cylinder. The surface of the connecting cylinder is provided with several partitions, which are evenly distributed between adjacent partitions. Several ring-shaped heating wires are arranged around the surface of the partitions. One end of the connecting cylinder extends outward to form a retaining ring. The size of the heating wires gradually increases from one end of the retaining ring to one end of the connecting cylinder.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: The hair dryer shell of this utility model, which is a deformation-resistant injection molded product, enhances the structural strength of the shell by setting two symmetrical protective plates on the surface of the front cover, effectively preventing the shell from deforming during use. The mounting groove formed by the inward indentation of the inner wall of the front cover is slidably connected to the mounting block on the surface of the sleeve, and the positioning groove formed by the inward indentation of the inner wall of the sleeve is slidably connected to the positioning block on the surface of the fixed cylinder, so that the sleeve and the fixed cylinder can be stably installed inside the front cover, while facilitating installation and disassembly. By setting the sleeve and the fixed cylinder, the thickness of the shell can be increased, which greatly improves the structural strength of the shell. Attached Figure Description
[0011] Figure 1 This is a perspective view of a hair dryer housing for an anti-deformation injection molded product according to the present invention;
[0012] Figure 2 This is a front view of the hair dryer housing of an anti-deformation injection molded product according to the present invention;
[0013] Figure 3 This is a rear view of the hair dryer housing of an anti-deformation injection molded product according to this utility model;
[0014] Figure 4 This is a schematic diagram of the internal structure of the front cover of a hair dryer shell, which is a type of anti-deformation injection molded product according to this utility model.
[0015] Figure 5 This is a schematic diagram of the structure of the sleeve of a hair dryer housing for an anti-deformation injection molded product according to this utility model;
[0016] Figure 6 This is a perspective view of the fixing cylinder of the hair dryer shell of an anti-deformation injection molded product according to this utility model.
[0017] Numbering on the map:
[0018] 1-Front cover; 2-Rear cover; 3-Protective plate; 4-Mesh cover; 5-Handle part; 6-Control button; 7-Bottom cover; 8-Metal cover; 9-Ventilation hole; 10-Mounting groove; 11-Sleeve; 12-Positioning groove; 13-Mounting block; 14-Fixing cylinder; 15-Positioning block; 16-Baffle; 17-Heating wire; 18-Clamping ring. Detailed Implementation
[0019] 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.
[0020] The following is combined with Figures 1-6 This utility model provides a detailed description of a hair dryer housing made of anti-deformation injection molded material:
[0021] A blower housing for a deformation-resistant injection molded product includes a front cover 1 and a rear cover 2. Two protective plates 3 are symmetrically arranged on the surface of the front cover 1. The inner wall of the front cover 1 is recessed to form two mounting grooves 10, both extending along the length of the front cover 1. A sleeve 11 is disposed inside the front cover 1. The surface of the sleeve 11 protrudes outward to form mounting blocks 13 that fit with the mounting grooves 10. The mounting blocks 13 are slidably connected to the mounting grooves 10. The inner wall of the sleeve 11 is recessed to form two positioning grooves 12, both extending along the length of the sleeve 11. A fixing cylinder 14 is disposed inside the sleeve 11. The surface of the fixing cylinder 14 protrudes outward to form positioning blocks 15 that fit with the positioning grooves 12. The positioning blocks 15 are slidably connected to the mounting grooves 10. The positioning grooves 12 are slidably connected. One end of the front cover 1 is provided with a mesh cover 4. The surface of the front cover 1 is a smooth surface. One end of the rear cover 2 is provided with a metal cover 8. The surface of the metal cover 8 is provided with several ventilation holes 9. The bottom of the front cover 1 and the rear cover 2 extends to form a handle part 5. Several control buttons 6 are movably provided on the surface of the handle part 5. The bottom of the handle part 5 is provided with a detachable bottom cover 7. One end of the fixed cylinder 14 extends outward to form a connecting cylinder. Several partitions 16 are provided on the surface of the connecting cylinder. Adjacent partitions 16 are evenly distributed. Several ring-shaped heating wires 17 are arranged around the surface of the partitions 16. One end of the connecting cylinder extends outward to form a retaining ring 18. The size of the heating wires 17 gradually increases from one end of the retaining ring 18 to one end of the connecting cylinder.
[0022] The design of the mesh cover 4 and metal cover 8 is not only aesthetically pleasing, but also effectively prevents foreign objects from entering the hair dryer, protecting internal parts from damage, and also provides ventilation. The design of the handle 5 makes the hair dryer easier to hold and use, improving the user experience. The design of the fixed cylinder 14 allows the hair dryer shell to be securely connected to other components (such as the motor). The heating wire 17 surrounding the surface of the partition 16 can quickly heat the air, allowing the hair dryer to blow out hot air. In this embodiment, the hair dryer shell also houses the power supply, main control circuit board, motor, and fan blades. The hair dryer is formed by combining the hair dryer shell and other components, and the motor is fixed inside the fixed cylinder 14 with screws. When the motor needs to be disassembled, the internal motor can be disassembled by sliding the sleeve 11 and the fixed cylinder 14. The double-layer structure, namely the sleeve 11 and the fixed cylinder 14, makes the hair dryer shell structure stronger and greatly improves its resistance to deformation.
[0023] This embodiment of a blower housing for an anti-deformation injection molded product enhances the structural strength of the housing by providing two symmetrical protective plates 3 on the surface of the front cover 1, effectively preventing deformation of the housing during use. The mounting groove 10 formed by the inward indentation of the inner wall of the front cover 1 is slidably connected to the mounting block 13 on the surface of the sleeve 11, and the positioning groove 12 formed by the inward indentation of the inner wall of the sleeve 11 is slidably connected to the positioning block 15 on the surface of the fixed cylinder 14. This allows the sleeve 11 and the fixed cylinder 14 to be stably installed inside the front cover 1, while facilitating installation and disassembly. By providing the sleeve 11 and the fixed cylinder 14, the thickness of the housing can be increased, greatly improving the structural strength of the housing.
[0024] 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, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A blow dryer housing of a deformation resistant injection molded article comprising a front cover and a back cover, characterized in that: The front cover has two protective plates symmetrically arranged on its surface. The inner wall of the front cover is recessed to form two mounting grooves, both extending along the length of the front cover. A sleeve is provided inside the front cover, and the surface of the sleeve protrudes outward to form a mounting block that matches the mounting groove. The mounting block is slidably connected to the mounting groove. The inner wall of the sleeve is recessed to form two positioning grooves, both extending along the length of the sleeve. A fixing cylinder is provided inside the sleeve, and the surface of the fixing cylinder protrudes outward to form a positioning block that matches the positioning groove. The positioning block is slidably connected to the positioning groove.
2. A blow dryer housing of claim 1, wherein: A mesh cover is provided at one end of the front cover, and the surface of the front cover is a smooth surface.
3. A blow dryer housing of claim 1, wherein: One end of the rear cover is provided with a metal cover, and the surface of the metal cover is provided with several ventilation holes.
4. A blow dryer housing of claim 1, wherein: The bottom of the front cover and the rear cover extend to form a handle portion, and a number of control buttons are movably provided on the surface of the handle portion. A detachable bottom cover is provided at the bottom of the handle portion.
5. A blow dryer housing of claim 1-4, wherein: One end of the fixed cylinder extends outward to form a connecting cylinder. The surface of the connecting cylinder is provided with several partitions, which are evenly distributed between adjacent partitions. Several ring-shaped heating wires are arranged around the surface of the partitions. One end of the connecting cylinder extends outward to form a retaining ring. The size of the heating wires gradually increases from one end of the retaining ring to one end of the connecting cylinder.