Heat dissipation structure and hair trimmer

Abstract

The utility model relates to the technical field of hair trimmer, and discloses a heat dissipation structure and a hair trimmer, the heat dissipation structure comprises a machine body and a stationary knife, a heat dissipation air channel communicated with the outside is arranged in the machine body, a blowing device and a heat dissipation part are arranged in the heat dissipation air channel, and the heat dissipation part is used for conducting heat on the stationary knife; during use, heat of the heat dissipation component is conducted to air in the heat dissipation air duct, and the air blowing device works to discharge the air with heat in the heat dissipation air duct to the outside. The device is simple in structure and low in production cost; heat on the fixed cutter can be absorbed through the heat dissipation component, and the heat of the heat dissipation component is discharged to the outside through the air blowing device, so that the heat dissipation and cooling effects on the fixed cutter are achieved, the temperature of the fixed cutter is prevented from being too high, lubricating agents do not need to be frequently added to the fixed cutter, the fixed cutter is not prone to thermal fatigue, sharpness of the fixed cutter is guaranteed, and the service life of the fixed cutter is prolonged; the fixed knife is prevented from scalding human bodies and the use experience is improved.

Description

Technical Field

[0001] This utility model relates to the field of hair trimmer technology, and more specifically, to a heat dissipation structure and a hair trimmer. Background Technology

[0002] Some existing hair trimmers, such as electric hair clippers, have a blade structure that includes a fixed blade and a moving blade that reciprocates relative to the fixed blade. The moving blade is abutted against the fixed blade by elastic elements such as springs and spring sheets. When in use, the motor inside the hair trimmer drives the moving blade to swing back and forth, and the hair is trimmed by the cooperation of the fixed blade and the moving blade.

[0003] However, some existing hair trimmers generate heat during the reciprocating motion of the moving blades, which come into contact with the fixed blades. This leads to high temperatures in the fixed blades, causing the following problems: 1. The lubricating oil or grease at the contact points between the moving and fixed blades is consumed more quickly. Frequent manual application of lubricant (usually oil or grease) is required to cool and lubricate the moving blades, ensuring smooth movement. This frequent manual lubrication is time-consuming, labor-intensive, inefficient, and results in a poor user experience. 2. Fixed blades, typically made of metal, experience thermal fatigue at higher temperatures, leading to a decrease in mechanical properties such as yield strength, tensile strength, and hardness. This reduces the sharpness of the fixed blades during trimming and makes them prone to deformation, breakage, and scratches, shortening their lifespan. 3. The high-temperature fixed blades may come into contact with the human body, posing a risk of burns and further complicating the user experience. Utility Model Content

[0004] To address at least one of the aforementioned problems, this utility model provides a heat dissipation structure, including a body and a fixed blade. The body has a heat dissipation duct communicating with the outside. A blower and a heat dissipation component are installed within the heat dissipation duct. The heat dissipation component conducts heat from the fixed blade. In use, the heat from the heat dissipation component is conducted to the air within the heat dissipation duct, and the blower operates to expel the hot air from the duct to the outside. This heat dissipation structure is simple in structure and has low production costs. The heat dissipation component absorbs heat from the fixed blade and dissipates it to the outside through the blower, thereby achieving a cooling effect on the fixed blade. This prevents the fixed blade from overheating, eliminates the need for frequent lubrication, reduces the risk of thermal fatigue, maintains the blade's sharpness, extends its service life, prevents burns, and improves the user experience.

[0005] Optionally, the blowing device is a fan, the heat dissipation component contacts the fixed blade for heat conduction, the fixed blade includes a fixed blade body and a fixed blade fixing block that contacts the fixed blade body, the fixed blade body, the fixed blade fixing block and the machine body are fixed together, and the heat dissipation component contacts the fixed blade fixing block for heat conduction.

[0006] Optionally, the heat dissipation component is a heat-conducting block that contacts the fixed blade.

[0007] Optionally, the heat dissipation component is made of metal, ceramic, graphite, graphene, carbon fiber, or diamond.

[0008] Optionally, the heat dissipation component is provided with a plurality of heat dissipation strips.

[0009] Optionally, the heat sink is provided with air guide grooves.

[0010] Optionally, the heat dissipation component includes a heat-conducting block and a cooling plate, the cooling plate abutting between the fixed blade and the heat-conducting block, the cooling plate having a cooling surface and a heating surface, the cooling surface contacting the fixed blade, and the heating surface contacting the heat-conducting block.

[0011] Optionally, a pressure block is provided on the body, and the heat-conducting block abuts between the cooling chip and the pressure block; a circuit board is provided in the air duct, and the cooling chip and the blower are both electrically connected to the circuit board.

[0012] Optionally, the machine body is provided with an air inlet and an air outlet that communicate with the heat dissipation duct. The heat dissipation duct includes a first duct and a second duct formed on both sides of the blowing device. The blowing device drives the air in the first duct to flow into the second duct. The air inlet is used to connect the outside to the first duct, and the air outlet is used to connect the outside to the second duct. The air inlet is located at the end of the machine body away from the fixed blade.

[0013] Optionally, the heat dissipation component is placed on one side of the air outlet, and a mesh is provided between the heat dissipation component and the air outlet.

[0014] Compared to existing technologies, the heat dissipation structure in this invention is simple in structure and low in production cost. The heat dissipation component absorbs heat from the fixed blade and dissipates it to the outside via a blower, thus achieving a cooling effect on the fixed blade. This prevents the fixed blade from overheating, eliminates the need for frequent lubrication, reduces thermal fatigue, maintains its sharpness, extends its service life, and prevents burns, improving the user experience. The air inlet is located at the end of the machine body furthest from the fixed blade, ensuring a greater distance between the inlet and the blade. This keeps hair clippings far from the inlet, preventing them from being drawn into the cooling duct and affecting airflow, ensuring reliable operation.

[0015] In addition, this utility model also provides a hair trimmer, which includes the heat dissipation structure described above. This hair trimmer also has the beneficial effects of the heat dissipation structure described above, and will not be described in detail here. Attached Figure Description

[0016] Figure 1 This is a perspective view of the heat dissipation structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the heat dissipation structure of this utility model;

[0018] Figure 3 for Figure 2 Enlarged view of section A in the middle;

[0019] Figure 4 This is a schematic diagram of the heat dissipation structure of the present invention.

[0020] Figure 5 This is a schematic diagram of the air guide groove of the heat dissipation structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the heat dissipation structure mesh portion of this utility model;

[0022] Figure 7 This is a perspective view of Embodiment 2 of the heat dissipation structure of this utility model;

[0023] Figure 8 This is a cross-sectional view of Embodiment 2 of the heat dissipation structure of this utility model;

[0024] Figure 9 for Figure 8 Enlarged view of section B;

[0025] The component names corresponding to the various labels in the figure are as follows: 1 is the body, 11 is the air inlet, 12 is the air outlet, 101 is the heat dissipation duct, 1011 is the first air duct, 1012 is the second air duct, 102 is the pressure block, 103 is the circuit board, 2 is the fixed blade, 21 is the fixed blade body, 22 is the positioning and fixing block, 3 is the blowing device, 41 is the heat conduction block, 411 is the heat dissipation strip, 412 is the air guide groove, 42 is the cooling plate, 421 is the cooling surface, 422 is the heating surface, 5 is the mesh, and 6 is the battery. Detailed Implementation

[0026] 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.

[0027] In the description of this utility model, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship when the product is in normal use.

[0028] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature.

[0029] Example 1:

[0030] See Figures 1-6 Embodiment 1 of this utility model provides a heat dissipation structure, including a body 1 and a fixed blade 2. The body 1 is the body of a hair trimmer, and in this embodiment, it is the body of an electric hair clipper. A heat dissipation duct 101 communicating with the outside is provided inside the body 1. A blower 3 and a heat dissipation component are provided inside the heat dissipation duct 101. The heat dissipation component is used to conduct heat from the fixed blade 2. During use, the temperature of the fixed blade 2 rises, and the heat dissipation component absorbs some of the heat from the fixed blade 2. The heat from the heat dissipation component is conducted to the air inside the heat dissipation duct 101. The blower 3 operates to dissipate heat from the air inside the heat dissipation duct 101. The hot air is exhausted to the outside to achieve a heat dissipation effect. This utility model heat dissipation structure is simple in structure and low in production cost. The heat dissipation component can absorb the heat on the fixed blade and exhaust the heat of the heat dissipation component to the outside through the blower, thereby achieving a heat dissipation and cooling effect on the fixed blade, avoiding the fixed blade temperature from getting too high, eliminating the need to frequently add lubricant to the fixed blade, reducing the fixed blade from thermal fatigue, and ensuring that the sharpness, hardness, yield strength, tensile strength and other properties of the fixed blade will not be significantly reduced due to excessive temperature, thus extending the service life of the fixed blade, preventing the fixed blade from burning the human body, and improving the user experience.

[0031] See Figures 1-3The blowing device 3 is a fan. The heat dissipation component contacts the fixed blade 2 for heat conduction. The fixed blade 2 includes a fixed blade body 21 and a fixed blade fixing block 22 that contacts the fixed blade body 21. The fixed blade fixing block 22 can be made of metal or a non-metallic material with good thermal conductivity. The fixed blade body 21, the fixed blade fixing block 22 and the body 1 are fixed together by bolts. The heat dissipation component contacts the fixed blade fixing block 22 for heat conduction. When in use, the fixed blade body 21 generates heat, which is conducted to the fixed blade fixing block 22. The heat dissipation component then absorbs the heat on the fixed blade fixing block 22 and conducts its own heat to the air in the heat dissipation duct. When the fan rotates, it exhausts the hot air in the heat dissipation duct to the outside. The structure is reasonably designed. The heat dissipation component is a heat-conducting block 41 that contacts the fixed blade 2. The heat-conducting block 41 directly contacts the fixed blade 2 and conducts the heat of the fixed blade 2 to the air in the heat dissipation duct, thereby achieving the heat dissipation effect.

[0032] See Figures 2-5 The heat dissipation component is made of metal, ceramic, graphite, graphene, carbon fiber, or diamond. The heat dissipation component uses a material with good thermal conductivity; in this embodiment, aluminum or copper is preferred due to its good thermal conductivity and low material cost. The heat dissipation component is integrally provided with several heat dissipation strips 411. In this embodiment, three heat dissipation strips 411 are provided. The heat dissipation strips 411 increase the contact area with the air in the heat dissipation duct 101, improving thermal conductivity and thus enhancing the heat dissipation effect. Air guide grooves 412 are provided on the heat dissipation strips 411. When the blowing device (in this embodiment, a fan) is working, it drives the airflow within the heat dissipation duct 101. The air guide grooves 412 facilitate the guidance and stabilization of this airflow, allowing the air to flow along the air guide grooves 412, improving the stability of airflow during the heat dissipation process and thus enhancing the heat dissipation effect.

[0033] See Figure 1 , Figure 2 , Figure 3 and Figure 6The body 1 has an air inlet 11 and an air outlet 12 connected to the heat dissipation duct 101. The heat dissipation duct 101 includes a first duct 1011 and a second duct 1012 formed on both sides of the blower 3. The first duct 1011 and the second duct 1012 are connected. The blower 3 drives the air in the first duct 1011 into the second duct 1012. The air inlet 11 is used to connect the outside to the first duct 1011, and the air outlet 12 is used to connect the outside to the second duct 1012. 11 is located at the end of the body 1 away from the fixed blade 2; this makes the air inlet 11 far from the fixed blade 2, so that the hair clippings generated during trimming are far from the air inlet 11, making it difficult for the hair clippings to be sucked into the heat dissipation duct 101 from the air inlet 11, thus preventing the hair clippings from entering the heat dissipation duct 101 and affecting the air flow in the heat dissipation duct 101, making it reliable in use; during use, the outside air flows from the air inlet 11, sequentially through the first air duct 1011 and the second air duct 1012, and is discharged to the outside from the air outlet 12.

[0034] See Figure 2 , Figure 3 and Figure 6 The heat dissipation component is located on one side of the air outlet 12. When the air outlet 12 blows air, it can carry the heat of the heat dissipation component to the outside. A mesh 5 is provided between the heat dissipation component and the air outlet 12 to prevent small debris such as hair from entering the heat dissipation duct 101 from the air outlet 12, thus preventing the airflow in the heat dissipation duct 101 from being affected by such debris. A battery 6 for power supply is provided inside the body 1. The battery 6 is electrically connected to the circuit board 103. When in use, the heat of the circuit board 103, battery, blower 3 and heat conduction block 41 will be conducted to the air in the heat dissipation duct 101. The blower 3 works to expel the hot air, thereby achieving the heat dissipation effect on the circuit board 103, battery 6, blower 3, heat conduction block 41 and fixed blade, and extending the service life.

[0035] Example 2:

[0036] See Figures 7-9 The difference between this second embodiment and the first embodiment is that the heat dissipation component includes a heat-conducting block 41 and a cooling chip 42. In this embodiment, the cooling chip 42 is a semiconductor cooling chip, which further enhances the heat dissipation effect on the fixed blade 2. The cooling chip 42 is located between the fixed blade 2 and the heat-conducting block 41. The cooling chip 42 has a cooling surface 421 and a heating surface 422. The cooling surface 421 is in contact with the fixed blade 2, and the heating surface 422 is in contact with the heat-conducting block 41. When the cooling chip 42 is powered on, it absorbs the heat of the fixed blade 2 through the cooling surface 421 to cool and dissipate heat from the fixed blade. At this time, the heating surface 422 will generate heat. The heat of the heating surface 422 is conducted to the air in the heat dissipation duct 101 through the heat-conducting block 41, and then carried out to the outside by the wind force of the blower.

[0037] See Figure 8 and Figure 9 The body 1 is provided with a pressure block 102, and the heat conduction block 41 is abutted between the cooling chip 42 and the pressure block 102 for limiting the position; the air duct 101 is provided with a circuit board 103, and the cooling chip 42 and the blower 3 are electrically connected to the circuit board 103 through wires.

[0038] The heat dissipation structure of this invention is simple in structure and low in production cost. The heat dissipation component absorbs heat from the fixed blade and discharges it to the outside through a blower, thus achieving a cooling effect on the fixed blade. This prevents the fixed blade from overheating, eliminates the need for frequent lubrication, reduces thermal fatigue, maintains its sharpness, extends its service life, and prevents burns, improving the user experience. The air inlet is located at the end of the machine body furthest from the fixed blade, ensuring a greater distance between the air inlet and the blade. This keeps hair clippings far from the air inlet, preventing them from being sucked into the cooling duct and affecting airflow, ensuring reliable operation.

[0039] In addition, this utility model also provides a hair trimmer, which includes the heat dissipation structure described above. This hair trimmer also has the beneficial effects of the heat dissipation structure described above, and will not be described in detail here.

[0040] In the description of this disclosure, it should be understood that the terms "upper", "lower", "bottom", "inner", "outer", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and 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 disclosure.

[0041] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0042] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," 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; 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0043] In this disclosure, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first feature or in indirect contact with the first feature through an intermediate medium.

[0044] It should be noted that when a component is described as being "set on" another component, it can be directly on the other component or there may be an intervening component. When a component is described as "connected to another component," it can be directly connected to the other component or there may be an intervening component. Furthermore, when a component is described as being "fixedly connected" to another component, the connection can be detachable or non-detachable, such as through socketing, snap-fitting, integral molding, welding, etc., which are achievable in conventional technologies and will not be elaborated upon here.

[0045] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A heat dissipating structure, characterized by comprising: The device includes a body (1) and a fixed blade (2). The body (1) is provided with a heat dissipation duct (101) that communicates with the outside. The heat dissipation duct (101) is provided with a blower (3) and a heat dissipation component. The heat dissipation component is used to conduct heat from the fixed blade (2). When in use, the heat from the heat dissipation component is conducted to the air in the heat dissipation duct (101), and the blower (3) works to exhaust the hot air in the heat dissipation duct (101) to the outside.

2. The heat dissipating structure according to claim 1, wherein The blowing device (3) is a fan. The heat dissipation component is in contact with the fixed blade (2) for heat conduction. The fixed blade (2) includes a fixed blade body (21) and a fixed blade fixing block (22) in contact with the fixed blade body (21). The fixed blade body (21), the fixed blade fixing block (22) and the machine body (1) are fixed together. The heat dissipation component is in contact with the fixed blade fixing block (22) for heat conduction.

3. The heat dissipating structure according to claim 1, wherein The heat dissipation component is a heat-conducting block (41) that is in contact with the fixed blade (2).

4. The heat dissipating structure according to claim 3, wherein The heat dissipation component is made of metal, ceramic, graphite, graphene, carbon fiber, or diamond.

5. The heat dissipating structure according to claim 1, wherein The heat dissipation component is provided with a number of heat dissipation strips (411).

6. The heat dissipating structure according to claim 5, wherein The heat dissipation strip (411) is provided with an air guide groove (412).

7. The heat dissipating structure according to claim 1, wherein The heat dissipation component includes a heat-conducting block (41) and a cooling plate (42). The cooling plate (42) abuts between the fixed blade (2) and the heat-conducting block (41). The cooling plate (42) has a cooling surface (421) and a heating surface (422). The cooling surface (421) contacts the fixed blade (2), and the heating surface (422) contacts the heat-conducting block (41).

8. The heat dissipating structure according to claim 7, wherein A pressure block (102) is provided on the body (1), and the heat-conducting block (41) abuts between the cooling chip (42) and the pressure block (102); a circuit board (103) is provided in the air duct (101), and the cooling chip (42) and the blower (3) are electrically connected to the circuit board (103).

9. The heat dissipating structure according to any one of claims 1 to 8, wherein The machine body (1) is provided with an air inlet (11) and an air outlet (12) that are connected to the heat dissipation duct (101). The heat dissipation duct (101) includes a first duct (1011) and a second duct (1012) formed on both sides of the blower (3). The blower (3) drives the air in the first duct (1011) to flow into the second duct (1012). The air inlet (11) is used to connect the outside world with the first duct (1011), and the air outlet (12) is used to connect the outside world with the second duct (1012). The air inlet (11) is located at the end of the machine body (1) away from the fixed blade (2).

10. The heat dissipating structure according to claim 9, wherein The heat dissipation component is placed on one side of the air outlet (12), and a mesh (5) is provided between the heat dissipation component and the air outlet (12).

11. A hair trimmer characterized by Includes the heat dissipation structure as described in any one of claims 1-10.

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