A heat dissipation structure of a hair dryer

Abstract

The utility model discloses a heat dissipation structure of hair dryer. It includes: fan seat casing body, the inside fixed heat fan module of fan seat casing body, and fan seat casing body is assembled by two mutually adaptive fan seat half -shell, and is equipped with thyristor cooling fin slot and IPM cooling fin card slot on fan seat half -shell, heat frame sleeve, the inside fixed heat frame module of heat frame sleeve, and the opening portion of heat frame sleeve is adapted with the port of fan seat casing body and is sealedly connected with two, thyristor cooling fin, thyristor cooling fin is placed in thyristor cooling fin slot and is inserted with it, and is equipped with thyristor module on thyristor cooling fin, IPM cooling fin, IPM cooling fin is clamped in IPM cooling fin card slot, and is equipped with IPM board on IPM cooling fin. The beneficial effects of the present application are: thyristor module and IPM board are always placed in the air duct, do not occupy the space in the air duct, guarantee the integrity of the air duct, make the high-speed airflow flow smoothly, and form isolation with the heat frame module.

Description

Technical Field

[0001] This utility model relates to the technical field of hair dryers, and in particular to a heat dissipation structure for a hair dryer. Background Technology

[0002] A hair dryer consists of a set of resistance wires and a high-speed motor. The high-speed motor contains fan blades that blow air. When powered on, the resistance wires generate heat, and the air blown by the fan passes through the resistance wires, turning into hot air. If only the small fan is running, but the resistance wires are not heated, then only air will be blown out, not hot air.

[0003] Most high-speed hair dryers on the market place heat-generating components (such as silicon controlled rectifiers and IPM chips) inside the air duct and use airflow for heat dissipation, which leads to the following problems: occupying air duct space, increasing air duct length, which is not conducive to the miniaturization of the whole machine; making the internal structure of the air duct more complex, affecting the airflow path, increasing air duct resistance and noise, and increasing the difficulty of component assembly; messy wiring inside the machine; proximity to the heating element, accelerating the aging of ribbon cables and circuit boards, increasing safety risks; heating elements and ribbon cables occupy the limited space inside the air duct, reducing the air volume and limiting the performance of the hair dryer.

[0004] In summary, there is a need for a heat dissipation structure in a hair dryer that allows the heating element to be located outside the air duct. Utility Model Content

[0005] The present invention aims to overcome the shortcomings of the prior art by providing a heat dissipation structure for a hair dryer that can place the heating element outside the air duct.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A heat dissipation structure for a hair dryer, comprising:

[0008] air duct;

[0009] A fan base housing is fixed to the inside of the air duct and positioned near the air inlet end of the air duct. A fan module is fixed inside the fan base housing. The fan base housing is assembled from two mutually compatible fan base half-shells. Both fan base half-shells are provided with SCR heat sink slots. The SCR heat sink slots are located at the connection between the two fan base half-shells. One of the fan base half-shells is also provided with an IPM heat sink slot.

[0010] A heating frame sleeve is fixed inside the air duct and positioned near the air outlet end of the air duct. A heating frame module is fixed inside the heating frame sleeve. The opening of the heating frame sleeve is adapted to the port of the fan base housing and the two are sealed together. The heating frame sleeve and the fan base housing together form an air duct.

[0011] A thyristor heat sink, wherein one side of the thyristor heat sink is placed in and connected to one of the thyristor heat sink slots, and the other side of the thyristor heat sink is placed in and connected to another thyristor heat sink slot. One side of the thyristor heat sink is located inside the fan base housing, and the other side of the thyristor heat sink is located outside the fan base housing and a thyristor module is disposed thereon.

[0012] The IPM heat sink is installed in the IPM heat sink slot. One side of the IPM heat sink is located inside the fan base housing, and the other side of the IPM heat sink is located outside the fan base housing and is provided with an IPM plate.

[0013] This utility model adopts a modular installation design. The fan module is assembled between two fan base half-shells. After the fan module and heating frame module are respectively installed on the fan base shell and heating frame sleeve, the fan base shell and heating frame sleeve are connected. The assembly is simple and effectively solves the problems of installation and production difficulties. The thyristor heat sink is inserted into the thyristor heat sink slot between the two fan base half-shells, and the IPM heat sink is clipped into the IPM heat sink slot. The design of the guide installation groove reserved on the side wall of the air duct allows for quick and precise installation and fixing of the thyristor heat sink and IPM heat sink. The thyristor heat sink and thyristor module, and the IPM heat sink and IPM board adopt a direct contact installation method, which requires less space and makes the product form more diversified. The SCR module and IPM board are always positioned outside the air duct, occupying no space within the duct. This ensures the integrity of the air duct, allowing for smooth high-speed airflow, and isolates them from the heating element module, eliminating the high-temperature impact of the heating element module on the SCR module and IPM board, significantly improving their heat dissipation efficiency. The separate, horizontal mounting of the SCR module and IPM board results in a flatter design, effectively reducing the size of the air duct and making the product more compact and aesthetically pleasing. It also greatly reduces the length of the air duct, allowing for more diverse product forms. Furthermore, with the SCR module and IPM board positioned outside the air duct, all corresponding wiring is also routed outside the air duct, resulting in cleaner wiring.

[0014] Preferably, one fan base half-shell is provided with a half-shell clip and a first half-shell threaded hole, while the other fan base half-shell is provided with a half-shell slot and a second half-shell threaded hole. The two fan base half-shells are interlocked by the engagement of the half-shell clip and the half-shell slot, and are further secured by screws through the engagement of the first and second half-shell threaded holes. During installation, align the half-shell clip of one fan base half-shell with the half-shell slot on the other fan base half-shell, engage them, and then tighten the screws into the first and second half-shell threaded holes to secure them. This connection method is simple and easy to operate, facilitating installation and disassembly, and effectively solving the problems of installation and production difficulties.

[0015] Preferably, one end of the fan base housing is an air inlet for the air duct, and the other end of the fan base housing is provided with an annular fastener. The opening of the heating frame sleeve is provided with an annular groove that matches the annular fastener. The heating frame sleeve is sealed and snapped into the fan base housing through the cooperation of the annular groove and the annular fastener. The bottom of the heating frame sleeve is provided with an air duct outlet. During installation, the annular fastener at the other end of the fan base housing is aligned with the annular groove on the opening of the heating frame sleeve, and the two are fastened together. The connection method is simple and easy to operate, facilitating installation and disassembly, and effectively solving the problems of installation and production difficulties.

[0016] Preferably, the opening of the heating element sleeve and the other end of the fan base housing are smoothly connected. The connection between the heating element sleeve and the fan base housing adopts a smooth airflow design, which optimizes the airflow path, improves the smoothness of the path, reduces wind noise and resistance, and increases wind speed.

[0017] Preferably, the contact surface between the SCR heat sink and the SCR module is coated with thermal grease and the two are fixedly connected by screws. Similarly, the contact surface between the IPM heat sink and the IPM board is coated with thermal grease and the two are fixedly connected by screws. This thermal grease coating design further improves heat conduction efficiency and enhances heat dissipation. The screw fixing method is simple and easy to operate, facilitating installation and disassembly, and reducing the difficulty of later maintenance and repair.

[0018] Preferably, one side of the thyristor heat sink and one side of the IPM heat sink are flush with the inner wall of the fan housing. The thyristor heat sink and the IPM heat sink adopt a flush, embedded design, which does not encroach on the cross-sectional area of ​​the air duct. It utilizes the redundant space on the side wall of the air duct to carry the heat dissipation function, achieving a performance leap with zero increase in volume.

[0019] Preferably, both the thyristor heat sink and the IPM heat sink are made of aluminum. As a material with high thermal conductivity, aluminum can quickly absorb the heat from high-temperature components fixed on the heat sink by closely adhering to the sidewall of the air duct, and exchange heat with the airflow, resulting in high heat dissipation efficiency.

[0020] The beneficial effects of this utility model are as follows: the thyristor heat sink and IPM heat sink can be installed and fixed quickly and accurately; the thyristor module and IPM board do not occupy the space inside the air duct, ensuring the integrity of the air duct and allowing the high-speed airflow to flow smoothly, while also isolating them from the heating frame module, eliminating the high-temperature impact of the heating frame module on the thyristor module and IPM board, and significantly improving the heat dissipation efficiency of the thyristor module and IPM board; the volume of the air duct and air channel is reduced, making the product more compact and beautiful, while also greatly reducing the length of the air duct, making the product form more diversified; the product wiring is neater; the connection method is simple and easy to operate, facilitating installation and disassembly, and effectively solving the problems of installation and production difficulties; the heat conduction efficiency is improved, enhancing the heat dissipation effect; the thyristor heat sink and IPM heat sink do not encroach on the cross-sectional area of ​​the air duct, utilizing the redundant space of the air duct sidewall to carry the heat dissipation function, achieving a performance leap with zero increase in volume. Attached Figure Description

[0021] Figure 1 This is an exploded view of this utility model;

[0022] Figure 2 This is a diagram of the internal structure of this utility model;

[0023] Figure 3 This is an exploded view of the wind turbine base casing.

[0024] In the diagram: 1. Air duct, 2. Fan base housing, 3. Fan module, 4. Air inlet of the air duct, 5. Heating frame sleeve, 6. Air outlet of the air duct, 7. Half-shell clip, 8. Half-shell threaded hole one, 9. Half-shell slot, 10. Half-shell threaded hole two, 11. Annular clip, 12. Annular clip groove, 17. Heating frame module, 18. SCR heat sink, 19. IPM heat sink, 20. Fan base half-shell, 21. SCR heat sink slot, 22. IPM heat sink slot, 23. SCR module, 24. IPM board. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0026] like Figures 1-3 In the embodiments described above, a heat dissipation structure for a hair dryer includes:

[0027] Air duct 1;

[0028] The fan base housing 2 is fixed inside the air duct 1 and positioned near the air inlet end of the air duct 1. The fan module 3 is fixed inside the fan base housing 2. The fan base housing 2 is assembled from two mutually compatible fan base half-shells 20. Both fan base half-shells 20 are provided with a thyristor heat sink slot 21. The thyristor heat sink slot 21 is located at the connection between the two fan base half-shells 20. One of the fan base half-shells 20 is also provided with an IPM heat sink slot 22.

[0029] Heating frame sleeve 5 is fixed inside the air duct 1 and positioned near the air outlet end of the air duct 1. Heating frame module 17 is fixed inside the heating frame sleeve 5. The opening of the heating frame sleeve 5 is adapted to the other end of the fan base housing 2 and the two are sealed together. The heating frame sleeve 5 and the fan base housing 2 together form an air duct.

[0030] A thyristor heat sink 18 has one side placed in and connected to one of the thyristor heat sink slots 21, and the other side placed in and connected to another thyristor heat sink slot 21. One side of the thyristor heat sink 18 is located inside the fan base housing 2, and the other side of the thyristor heat sink 18 is located outside the fan base housing 2 and is provided with a thyristor module 23.

[0031] IPM heat sink 19 is installed in IPM heat sink slot 22. One side of IPM heat sink 19 is located inside the fan base housing 2, and the other side of IPM heat sink 19 is located outside the fan base housing 2 and is provided with IPM plate 24.

[0032] One of the fan base half shells 20 is provided with a half shell buckle 7 and a half shell threaded hole 8, and the other fan base half shell 20 is provided with a half shell groove 9 and a half shell threaded hole 10. The two fan base half shells 20 are interlocked by the half shell buckle 7 and the half shell groove 9, and are fixedly connected by screws by the half shell threaded hole 8 and the half shell threaded hole 10.

[0033] One end of the fan base housing 2 is the air inlet 4 of the air duct, and the other end of the fan base housing 2 is provided with an annular buckle 11. The opening of the heating frame sleeve 5 is provided with an annular buckle groove 12 that matches the annular buckle 11. The heating frame sleeve 5 is sealed and snapped with the fan base housing 2 through the cooperation of the annular buckle groove 12 and the annular buckle 11. The bottom of the heating frame sleeve 5 is provided with an air duct outlet 6.

[0034] The opening of the heating frame sleeve 5 and the other port of the fan base housing 2 are smoothly connected.

[0035] The contact surfaces of the thyristor heat sink 18 and the thyristor module 23 are coated with thermal grease and are fixedly connected by screws. The contact surfaces of the IPM heat sink 19 and the IPM board 24 are coated with thermal grease and are fixedly connected by screws.

[0036] One side of the thyristor heat sink 18 and one side of the IPM heat sink 19 are flush with the inner wall of the fan base housing 2.

[0037] Both the thyristor heat sink 18 and the IPM heat sink 19 are made of aluminum.

[0038] Air duct assembly principle:

[0039] This application adopts a modular installation design. The fan module 3 is assembled between two fan base half-shells 20 and the two fan base half-shells 20 are fixed with screws, thereby fixing the fan module 3 inside the fan base housing 20. After the fan module 3 and the heating frame module 17 are respectively installed on the fan base housing 2 and the heating frame sleeve 5, the fan base housing 2 and the heating frame sleeve 5 are then snapped together to form an air duct, which solves the problems of installation and production difficulties and simplifies the assembly process.

[0040] During the assembly of the two fan base half-shells 20, the thyristor heat sink 18 is inserted into the thyristor heat sink slot 21 between the two fan base half-shells 20 for fixation, while the IPM heat sink 19 is clipped into the IPM heat sink slot 22 for fixation.

[0041] When installing the SCR module 23 and IPM board 24, thermal grease is first applied to the SCR heat sink 18 and IPM heat sink 19. Then, screws are used to fix the SCR module 23 to the SCR heat sink 18 and the IPM board 24 to the IPM heat sink 19. The high-speed airflow in the air duct carries away the heat transferred from the SCR module 23 and IPM board 24 to the SCR heat sink 18 and IPM heat sink 19, resulting in continuous cooling. As control modules with high heat generation, the SCR module 23 and IPM board 24 are always placed outside the air duct, without occupying space inside the air duct. This ensures the integrity of the air duct, allowing for smooth high-speed airflow, and also isolates them from the heat-generating bracket module 17, eliminating the high-temperature impact of the heat-generating bracket module 17 on the SCR module 23 and IPM board 24, thus significantly improving the heat dissipation efficiency of the SCR module 23 and IPM board 24.

Claims

1. A heat dissipation structure for a hair dryer, characterized in that, include: Ventilation duct (1); The fan base housing (2) is fixed to the inside of the air duct (1) and positioned near the air inlet of the air duct (1). The fan module (3) is fixed inside the fan base housing (2). The fan base housing (2) is assembled from two mutually compatible fan base half-shells (20). Both fan base half-shells (20) are provided with a thyristor heat sink slot (21). The thyristor heat sink slot (21) is located at the connection between the two fan base half-shells (20). One of the fan base half-shells (20) is also provided with an IPM heat sink slot (22). Heating frame sleeve (5) is fixed inside the air duct (1) and placed near the air outlet of the air duct (1). Heating frame module (17) is fixed inside the heating frame sleeve (5). The opening of the heating frame sleeve (5) is adapted to the other end of the fan base housing (2) and the two are sealed together. The heating frame sleeve (5) and the fan base housing (2) together form an air duct. A thyristor heat sink (18) is provided, with one side of the thyristor heat sink (18) placed in and connected to one of the thyristor heat sink slots (21), and the other side of the thyristor heat sink (18) placed in and connected to another thyristor heat sink slot (21). One side of the thyristor heat sink (18) is located inside the fan base housing (2), and the other side of the thyristor heat sink (18) is located outside the fan base housing (2) and a thyristor module (23) is provided thereon. IPM heat sink (19), the IPM heat sink (19) is installed in the IPM heat sink slot (22), one side of the IPM heat sink (19) is located inside the fan base housing (2), and the other side of the IPM heat sink (19) is located outside the fan base housing (2) and is provided with an IPM plate (24).

2. The heat dissipation structure of a hair dryer according to claim 1, characterized in that, One of the fan base half shells (20) is provided with a half shell buckle (7) and a half shell threaded hole one (8), and the other fan base half shell (20) is provided with a half shell slot (9) and a half shell threaded hole two (10). The two fan base half shells (20) are connected to each other by the cooperation of the half shell buckle (7) and the half shell slot (9), and are fixed by screws by the cooperation of the half shell threaded hole one (8) and the half shell threaded hole two (10).

3. The heat dissipation structure of a hair dryer according to claim 1, characterized in that, One end of the fan base housing (2) is the air inlet (4) of the air duct. The other end of the fan base housing (2) is provided with an annular buckle (11). The opening of the heating frame sleeve (5) is provided with an annular buckle groove (12) that matches the annular buckle (11). The heating frame sleeve (5) is sealed and snapped with the fan base housing (2) through the cooperation of the annular buckle groove (12) and the annular buckle (11). The bottom of the heating frame sleeve (5) is provided with an air duct outlet (6).

4. A heat dissipation structure for a hair dryer according to any one of claims 1-3, characterized in that, The opening of the heating frame sleeve (5) is smoothly connected to the other port of the fan base housing (2).

5. A heat dissipation structure for a hair dryer according to any one of claims 1-3, characterized in that, The contact surfaces of the thyristor heat sink (18) and the thyristor module (23) are coated with thermal grease and are fixedly connected by screws. The contact surfaces of the IPM heat sink (19) and the IPM board (24) are coated with thermal grease and are fixedly connected by screws.

6. The heat dissipation structure of a hair dryer according to claim 5, characterized in that, One side of the thyristor heat sink (18) and one side of the IPM heat sink (19) are flush with the inner wall of the fan base housing (2).

7. The heat dissipation structure of a hair dryer according to claim 5, characterized in that, The materials of the thyristor heat sink (18) and the IPM heat sink (19) are both aluminum.

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