A hand-held beauty instrument composite heat dissipation device uses a heat dissipation rack

Abstract

This utility model discloses a heat dissipation frame for a composite heat dissipation device of a handheld beauty instrument, belonging to the field of heat dissipation technology for beauty equipment. The heat dissipation frame includes a first support portion and a second support portion arranged opposite each other, forming a heat dissipation cavity for accommodating a heating element; an air inlet portion connected to the upper ends of the first and second support portions, which has an air inlet port that interfaces with a cooling fan; and a heat sink fixed within the heat dissipation cavity and located below the heating element. Both the first and second support portions have ventilation channels penetrating their upper and lower ends, with the air outlet of the ventilation channel directly facing the light source heating element of the heating element, forming a graded heat dissipation path consisting of an air inlet, a heat sink, and a ventilation channel. This utility model, through its graded heat dissipation path design, effectively improves the heat dissipation efficiency of the handheld beauty instrument and extends its service life.

Description

Technical Field

[0001] This utility model relates to the field of beauty equipment, specifically to a heat dissipation device for a handheld beauty device. Background Technology

[0002] With the increasing demand for beauty and skincare, handheld beauty devices, as portable beauty equipment, have become an important tool in the modern beauty and skincare field due to their ease of use and diverse functions. Currently, handheld beauty devices on the market mainly use light-emitting components to generate light of specific wavelengths for various beauty functions such as skin care, whitening, and acne treatment.

[0003] In the prior art, handheld beauty devices usually include a shell, functional components and heat dissipation components, among which the functional components are mainly heating components, such as light source heating components such as LED beads. For example, Chinese patent CN209154892U discloses a handheld beauty device, which includes a shell, functional components for beauty and heat dissipation components for heat dissipation of functional components. The heat dissipation components include a cooling fan and a heat conduction component. The heat conduction component divides the space inside the shell into independent heating space and heat dissipation space. The shell is provided with an air inlet and an air outlet [1].

[0004] In terms of heat dissipation structure design, Chinese patent CN214232430U discloses a heat dissipation device and a beauty instrument. The heat dissipation device includes a radiator and a heat pipe. The radiator is a finned radiator assembled from several heat dissipation fins. The heat dissipation fins are provided with through-hole ventilation holes and fasteners [2]. Chinese patent CN222398744U discloses a beauty instrument. Its heat dissipation components include an air guide structure, which forms a heat dissipation channel. The main light-emitting device is installed in the heat dissipation channel. The fan drives the air to form a heat dissipation airflow that flows sequentially through the air inlet, the main light-emitting device, the air outlet, and the air outlet [3].

[0005] In order to improve heat dissipation efficiency, Chinese patent CN221358218U discloses a handheld beauty device, in which a cooling fan is provided in the inner cavity of the body below the lamp plate, and the LED beads on the lamp plate are arranged in a matrix array, and the cooling fan provides a continuous, stable and reliable heat dissipation function [4]. In addition, Chinese patent CN216253654U discloses a beauty device, including a shell, a lighting component and a cooling fan. The lighting component defines the light source cavity, and the cooling fan drives the airflow to be drawn into the first air channel from the air inlet, and after flowing through the second air channel and the third air channel, it is discharged from the air outlet [5].

[0006] However, existing handheld beauty devices still have some issues with heat dissipation. First, current heat dissipation structures often fail to precisely target the primary heat source—the light source—leading to heat concentration at this area and impacting the device's lifespan and performance stability. Second, existing heat dissipation paths are relatively simple, lacking a tiered cooling design concept and failing to create an efficient airflow circulation path, resulting in limited heat dissipation efficiency. Furthermore, the fit between the heat sink structure and the heating element in existing technologies is not tight enough, hindering rapid heat conduction and dissipation, especially under high-power operation, which can easily lead to localized overheating.

[0007] Therefore, there is an urgent need for an architecture design that can efficiently dissipate heat from the heating components of handheld beauty devices. By optimizing the heat dissipation path, improving the support structure and the layout of heat dissipation elements, precise heat dissipation of the light source heating part can be achieved, thereby improving the heat dissipation efficiency and safety of handheld beauty devices. Summary of the Invention

[0008] The technical problem to be solved by this utility model is to address the issue of insufficient heat dissipation of the heating components in existing handheld beauty devices, which leads to overheating, shortened lifespan, and decreased user experience. This invention provides a heat dissipation frame for a composite heat dissipation device for handheld beauty devices, achieving efficient heat dissipation of the heating components.

[0009] The technical solution adopted by this utility model to solve its technical problem is as follows: a heat dissipation frame for a composite heat dissipation device for a handheld beauty instrument is provided, including a first support part and a second support part, which are arranged opposite to each other to form a heat dissipation cavity for accommodating a heating component; an air inlet part is connected to the upper end of the first support part and the second support part, and has an air inlet that is connected to a cooling fan; a heat sink is fixed in the heat dissipation cavity and located below the heating component; wherein, the first support part and the second support part are both provided with ventilation channels penetrating the upper and lower end faces, and the air outlet of the ventilation channel is directly opposite to the light source heating part of the heating component, so as to form a graded heat dissipation path consisting of an air inlet-heat sink-ventilation channel.

[0010] Preferably, the air inlet is provided with an adjustable baffle, which can be adjusted to change the airflow direction as needed and optimize the heat dissipation effect.

[0011] Preferably, the heat sink has a finned structure, and the gap between the fins is parallel to the airflow direction of the ventilation channel, which facilitates smooth airflow and removes heat.

[0012] Preferably, the sidewalls of the first and second support portions are U-shaped, which increases the heat dissipation area and improves the structural strength.

[0013] Preferably, the air outlet of the ventilation channel is provided with a guide slope to direct the airflow to the central area of ​​the heat-generating part of the light source, thereby improving the targeted heat dissipation.

[0014] Preferably, the air inlet is connected to a cooling fan to ensure a stable airflow input.

[0015] The beneficial effects of this utility model are as follows: By setting a heat dissipation cavity formed by the first and second support parts and arranging heat sinks therein, combined with a ventilation channel running through the support parts, a hierarchical heat dissipation path consisting of an air inlet, heat sink, and ventilation channel is formed, achieving efficient heat dissipation of the heating components of the handheld beauty device; by setting an air guide slope at the air outlet of the ventilation channel, the airflow can be precisely directed to the central area of ​​the heating element of the light source, improving heat dissipation efficiency; by setting an adjustable baffle, the airflow direction can be adjusted according to actual use needs, optimizing the heat dissipation effect; the heat sink adopts a finned structure, and the gap between the fins is parallel to the airflow direction of the ventilation channel, further improving heat exchange efficiency; the side wall of the support part adopts a U-shaped design, increasing the heat dissipation area while improving structural strength. Compared with the prior art, this utility model significantly improves the heat dissipation effect of the handheld beauty device, extends the service life of the device, and improves the user experience through reasonable structural design and airflow organization. Attached Figure Description

[0016] Figure 1 This is a three-dimensional view of a heat dissipation frame for a composite heat dissipation device of a handheld beauty instrument according to this utility model.

[0017] Figure 2 This is a top view of a heat dissipation frame for a composite heat dissipation device for a handheld beauty instrument according to this utility model.

[0018] In the diagram: 1. First support section; 2. Second support section; 3. Air inlet section; 4. Baffle; 5. Air inlet; 6. Heat dissipation cavity; 7. Ventilation channel. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Example

[0020] A heat dissipation frame for a handheld beauty device's composite heat dissipation device includes a first support portion 1 and a second support portion 2, an air inlet portion 3, and heat sinks. The first support portion 1 and the second support portion 2 are arranged opposite to each other to form a heat dissipation cavity 6 for accommodating the heating components. The sidewalls of the two support portions are U-shaped. This U-shaped structure increases the stability of the support portions and provides more space for the heat dissipation cavity 6, which is conducive to the rapid dissipation of heat.

[0021] The air inlet 3 is connected to the upper end of the first support part 1 and the second support part 2, and is provided with an air inlet 5 that connects to the cooling fan. The air inlet 5 is directly connected to the cooling fan, allowing external cold air to be effectively drawn into the cooling system. An adjustable baffle 4 is provided at the air inlet 5. By adjusting the angle of the baffle 4, the airflow and air direction entering the cooling system can be controlled, thereby flexibly adjusting the cooling effect according to different usage environments and cooling needs. When the beauty device is working in high-power mode, the baffle 4 can be adjusted to its maximum opening to increase the airflow; while in low-power mode, the opening of the baffle 4 can be appropriately reduced to decrease unnecessary energy loss.

[0022] The heat sink is fixed inside the heat dissipation cavity 6 and located below the heat-generating components. The heat sink adopts a finned structure design, and the gaps between the fins are parallel to the airflow direction of the ventilation channel 7. This design allows airflow to pass smoothly through the fin gaps, maximizing contact with the heat sink surface and improving heat exchange efficiency. The finned structure greatly increases the heat dissipation area, enabling it to quickly absorb and disperse the heat generated by the heat-generating components, preventing localized overheating.

[0023] Both the first support section 1 and the second support section 2 are equipped with ventilation channels 7 that run through the upper and lower end faces. The air outlet end of the ventilation channel 7 is directly opposite the heat-generating part of the light source of the heating element. This design forms a tiered heat dissipation path consisting of the air inlet 5, the heat sink, and the ventilation channel 7. The air outlet end of the ventilation channel 7 is equipped with a guide slope to direct the airflow to the central area of ​​the heat-generating part of the light source. The design of the guide slope allows cool air to accurately cover the hottest central area of ​​the heat-generating part of the light source, achieving directional cooling and improving heat dissipation efficiency.

[0024] In actual operation, the cooling fan draws in external cool air through the air inlet 5. The cool air first undergoes preliminary heat exchange through the heat sink, absorbing heat from the heat sink. Subsequently, the airflow passes through the ventilation channels 7 in the first support part 1 and the second support part 2, and guided by the inclined air guide, it blows directly towards the central area of ​​the heat-generating part of the light source, achieving direct cooling of the heat source. This staged heat dissipation path design not only cools the heat sink but also directly cools the heat source, forming a dual heat dissipation effect and significantly improving the efficiency of the entire heat dissipation system.

[0025] This compact heat sink boasts high heat dissipation efficiency, making it suitable for the heat dissipation needs of heating components in various handheld beauty devices. Through a rationally designed airflow path and heat dissipation structure, it effectively controls temperature during high-power operation of the beauty device, extending its lifespan while ensuring user safety.

[0026] Finally, it should be noted that the above descriptions are merely preferred embodiments of this application, and this application is not limited to the above embodiments. It is understood that other improvements and variations directly derived or conceived by those skilled in the art without departing from the spirit and concept of this application should be considered to be included within the protection scope of this application.

Claims

1. A heat dissipation frame for a composite heat dissipation device of a handheld beauty instrument, characterized in that: The first support portion and the second support portion are arranged opposite to each other and form a heat dissipation cavity for accommodating the heat-generating components; An air inlet is connected to the upper end of the first support and the second support, and is provided with an air inlet that connects to the cooling fan; A heat sink is fixed inside the heat dissipation cavity and located below the heat-generating component; The first support and the second support are both provided with ventilation channels that run through the upper and lower end faces. The air outlet of the ventilation channel is directly opposite to the heat source of the heating element, so as to form a graded heat dissipation path consisting of air inlet-heat sink-ventilation channel.

2. The heat dissipation frame for a composite heat dissipation device of a handheld beauty instrument according to claim 1, characterized in that... An adjustable baffle is provided at the air inlet.

3. The heat dissipation frame for a composite heat dissipation device of a handheld beauty instrument according to claim 1, characterized in that: The heat sink has a finned structure, and the gaps between the fins are parallel to the airflow direction of the ventilation channel.

4. The heat dissipation frame for a composite heat dissipation device of a handheld beauty instrument according to claim 1, characterized in that: The sidewalls of the first and second support parts are U-shaped.

5. The heat dissipation frame for a composite heat dissipation device of a handheld beauty instrument according to claim 1, characterized in that: The air outlet of the ventilation channel is provided with a guide slope to direct the airflow to the central area of ​​the heat source.

6. The heat dissipation frame for a composite heat dissipation device of a handheld beauty instrument according to claim 1, characterized in that: The air inlet is connected to the cooling fan.

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