Hand tool

Abstract

The utility model provides a hand tool, and belongs to the technical field of nursing equipment. The hand tool comprises a shell, a light-emitting assembly, a refrigerator, a first radiator and a second radiator. The shell comprises a handheld part and an electrode tip, the end, away from the electrode tip, of the handheld part is provided with an air inlet end, the end, away from the handheld part, of the electrode tip is provided with an air outlet end, and the side, in the second direction, of the electrode tip is provided with a light-transmitting part; the light-emitting assembly is arranged in the electrode tip, and light emitted by the light-emitting assembly can penetrate through the light-transmitting part; the refrigerator is arranged on the side, facing the light-emitting assembly, of the light-transmitting part. The first radiator is connected with the light-emitting assembly, the second radiator is connected with the refrigerator, the first radiator is provided with a plurality of first radiating channels, and the second radiator is provided with a plurality of second radiating channels. According to the hand tool, the light-emitting assembly and the refrigerator can be cooled separately, so that the temperature stability of the light-emitting assembly and the refrigerator in the working process is guaranteed, the nursing or treatment effect on the skin of a user is improved, and the user experience feeling is improved.

Description

Technical Field

[0001] This utility model relates to the field of nursing equipment technology, and in particular to a hand tool. Background Technology

[0002] Radiofrequency skin tightening and wrinkle removal are increasingly being used in home and medical aesthetic industries. In the process of using medical aesthetic instruments for facial skin tightening and wrinkle removal, each instrument is equipped with a matching beauty handpiece that can be used directly on the human face.

[0003] When the electrode head of the existing handpiece cannot make sufficient or poor contact with the face of the user, the strong current generated by the discharge of the electrode head may leave scars on the user's face, seriously affecting the treatment effect. When the operating temperature is too high, it will cause the operator to be unable to continue operating the handpiece, and it will also easily cause some internal parts of the handpiece to age rapidly, greatly reducing the service life of the handpiece. Utility Model Content

[0004] In view of this, the purpose of this utility model is to overcome the shortcomings of the prior art and provide a hand tool.

[0005] This utility model provides the following technical solution: a hand tool having intersecting first and second directions, comprising:

[0006] A housing defines a cavity. The housing includes a handheld part and an electrode head. Along the first direction, the handheld part has an air inlet at one end away from the electrode head, and the electrode head has an air outlet at one end away from the handheld part. The air inlet and the air outlet are respectively connected to the cavity to form an airflow channel. The electrode head has a light-transmitting part on one side along the second direction.

[0007] A light-emitting component is housed in the cavity and disposed in the electrode head, and the light emitted by the light-emitting component can pass through the light-transmitting part;

[0008] A cooler is disposed on the side of the light-transmitting portion facing the light-emitting component;

[0009] A first heat sink and a second heat sink are disposed alternately in the electrode head. The first heat sink is connected to the light-emitting component, and the second heat sink is connected to the cooler. The first heat sink is provided with a plurality of first heat dissipation channels, and the second heat sink is provided with a plurality of second heat dissipation channels. The first heat dissipation channels and the second heat dissipation channels are respectively connected to the airflow channel.

[0010] In some embodiments, the outer peripheral side of the first heat sink is spaced from the inner wall of the housing to define a first annular airflow channel through the outer peripheral side of the first heat sink and the inner wall of the housing;

[0011] And / or, the outer peripheral side of the second radiator is spaced from the inner wall of the housing to define a second annular airflow channel through the outer peripheral side of the first radiator and the inner wall of the housing.

[0012] In some embodiments, the handpiece further includes a fan housed in the cavity and disposed in the handpiece, the fan having an air inlet facing the air inlet end and an air outlet facing the air outlet end.

[0013] In some embodiments, the handpiece includes a guide plate disposed between the second radiator and the fan, the guide plate having a guiding surface facing the first radiator and the second radiator.

[0014] In some embodiments, the angle between the guide surface and the first direction is α, wherein the value of α is in the range of 3°≤α≤10°.

[0015] In some embodiments, the axis of the first heat dissipation channel and the axis of the second heat dissipation channel are parallel to the axis of the airflow channel, respectively.

[0016] In some embodiments, the cooler includes a cooling plate and a semiconductor dielectric, the semiconductor dielectric being disposed between the cooling plate and the light-transmitting portion, and the side of the cooling plate facing away from the semiconductor dielectric being connected to the second heat sink;

[0017] The cooling plate has a heating surface and a cooling surface arranged opposite to each other along the second direction.

[0018] In some embodiments, the second heat sink includes a plurality of second heat pipes and a plurality of second heat sink plates;

[0019] Multiple second heat sinks are spaced apart on the side of the cooling plate away from the light-transmitting part, and two adjacent second heat sinks are spaced apart to form a second heat dissipation channel.

[0020] Multiple second heat pipes are respectively disposed on the edge of the cooling plate. One end of the second heat pipe is connected to the side of the cooling plate away from the light-transmitting part, and the other end of the second heat pipe passes through the second heat dissipation plate.

[0021] In some embodiments, the light-emitting component includes a frame, a light-emitting element, and a light-transmitting plate;

[0022] The frame is disposed between the cooling plate and the second heat sink, defining an installation space. The light-emitting element is disposed in the installation space. The side of the frame facing the cooler has a light-transmitting opening that communicates with the installation space. The edge of the light-transmitting plate is connected to the inner wall of the light-transmitting opening and covers the light-transmitting opening.

[0023] The projection of the light-transmitting plate along the second direction onto the light-transmitting portion is in the light-transmitting portion.

[0024] In some embodiments, along the first direction, a first heat insulation plate is provided on one side of the frame and a second heat insulation plate is provided on the other side of the frame;

[0025] One end of the light-emitting element is connected to the first heat insulation plate, and the other end of the light-emitting element is connected to the second heat insulation plate.

[0026] In some embodiments, the first heat insulation plate and the second heat insulation plate are respectively provided with reflectors on the side facing the light-emitting element, and the reflective surface of the reflectors faces the light-emitting element.

[0027] In some embodiments, the handpiece further includes a third direction that intersects each of the first direction and the second direction;

[0028] The first heat sink is disposed between the frame and the second heat sink plate. The first heat sink includes a plurality of first heat pipes and a plurality of first heat sink plates. The plurality of first heat pipes are respectively disposed on the side of the frame away from the light-transmitting part.

[0029] Multiple first heat sinks are arranged along the third direction, and two adjacent first heat sinks are connected to define the first heat dissipation channel.

[0030] The first heat sink is connected to the first heat pipe on one side along the second direction, and the first heat sink is spaced apart from the second heat sink on the other side along the second direction.

[0031] In some embodiments, the first heat sink includes a first bent plate, a connecting plate, and a second bent plate connected together, wherein the first bent plate and the second bent plate are respectively disposed on two opposite sides of the connecting plate along the second direction;

[0032] The first bent plate is stacked on the side of the first heat pipe away from the frame, and the second bent plate and the second heat dissipation plate are spaced apart to form a third heat dissipation channel.

[0033] In some embodiments, the frame is provided with a protruding ring on the side facing the light-transmitting portion, and the inner wall of the protruding ring is adjacent to the edge of the light-transmitting plate;

[0034] The frame also includes a light guide tube, which is disposed on the side of the frame facing the light-transmitting part. The outer wall of the light guide tube is connected to the inner wall of the convex ring, and the light guide tube protrudes at least partially from the convex ring along the second direction.

[0035] The inner wall of the light guide tube is provided with a reflector, and the reflective surface of the reflector faces the axis of the light guide tube.

[0036] In some embodiments, the cooling plate and the semiconductor medium are respectively surrounded by the light guide tube, and the cooling plate and the semiconductor medium are respectively spaced apart from the light guide tube.

[0037] In some embodiments, the second heat pipe includes a first heat-conducting segment and a second heat-conducting segment. The first heat-conducting segment is attached to the cooling plate, one end of the second heat-conducting segment is connected to one end of the first heat-conducting segment, and the other end of the second heat-conducting segment passes through multiple second heat dissipation plates.

[0038] In some embodiments, a plurality of the first heat-conducting segments are arranged along the edge of the cooling plate.

[0039] In some embodiments, the handpiece further includes a control board housed in the cavity and connected to the inner wall of the housing, wherein the light-emitting component, the cooler, the first heat sink, the second heat sink, and the fan are electrically connected to the control board.

[0040] In some embodiments, the light-transmitting portion has a plurality of electrode sheets on the side opposite to the light-emitting component, and the plurality of electrode sheets are arranged at intervals along the edge of the light-transmitting portion.

[0041] The embodiments of this utility model have the following advantages: by arranging the first heat sink and the second heat sink alternately, and connecting the first heat sink to the light-emitting component and the second heat sink to the cooler, heat dissipation is achieved for the light-emitting component and the cooler separately, thereby ensuring the temperature stability of the light-emitting component and the cooler during operation, ensuring the stability and safety of the light-emitting component and the cooler during operation, thereby ensuring that the light-emitting component can provide stable light output during operation, thus improving the skin care and treatment effect on the user, thereby ensuring that the cooler can provide a continuous and stable cooling or heating effect during operation, thus ensuring the stability of the control of the heating or cooling temperature provided by the cooler, thereby improving the skin care or treatment effect on the user and enhancing the user experience.

[0042] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0043] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 This diagram shows a structural schematic of a hand tool provided by some embodiments of the present invention from one perspective;

[0045] Figure 2 It shows Figure 1 Sectional view of section AA;

[0046] Figure 3 It shows Figure 2 Enlarged view of section B;

[0047] Figure 4 This diagram shows a structural schematic of the interior of a hand tool according to some embodiments of the present invention;

[0048] Figure 5 This invention provides a schematic diagram of the internal structure of a hand tool from another perspective, based on some embodiments of the present invention.

[0049] Figure 6 The diagram shows a structural schematic of the frame of a hand tool provided by some embodiments of the present invention from one perspective.

[0050] Explanation of key component symbols:

[0051] 100-Housing; 110-Cavity; 120-Handheld part; 130-Electrode head; 140-Air inlet; 150-Air outlet; 160-Airflow channel; 131-Light-transmitting part; 200-Light-emitting component; 300-Refrigerator; 400-First heat sink; 500-Second heat sink; 410-First heat dissipation channel; 510-Second heat dissipation channel; 170-First annular airflow channel; 180-Second annular airflow channel; 600-Fan; 610-Air inlet; 620-Air outlet; 700-Guide plate; 710-Guide surface; 310-Refrigeration plate; 320-Semiconductor dielectric; 311-Heating surface; 312-Refrigeration Surface; 520-Second heat pipe; 530-Second heat sink; 210-Frame; 220-Light-emitting element; 230-Light-transmitting plate; 211-Installation space; 212-Light-transmitting opening; 240-First heat insulation plate; 250-Second heat insulation plate; 420-First heat pipe; 430-First heat sink; 431-First bending plate; 432-Connecting plate; 433-Second bending plate; 190-Third heat dissipation channel; 213-Protruding ring; 260-Light guide tube; 270-Reflector; 280-Reflector cover; 521-First heat-conducting section; 522-Second heat-conducting section; 800-Control board; 900-Electrode sheet; 1000-Aerospace connector.

[0052] X - First direction; Y - Second direction; Z - Third direction. Detailed Implementation

[0053] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0054] It should be noted that when an element is said to be "fixed" to another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is said to be "directly" on another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0055] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," 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 or an electrical 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0056] Furthermore, 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 one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0057] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the template description is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0058] like Figures 1 to 6 As shown, some embodiments of this utility model provide a hand tool, mainly used for skin care, to improve the stability and quality of care.

[0059] The hand has an intersecting first direction X and a second direction Y, wherein the first direction X and the second direction Y are perpendicular to each other.

[0060] The handpiece includes a housing 100, a light-emitting component 200, a first heat sink 400, and a second heat sink 500.

[0061] The housing 100 defines a cavity 110. The housing 100 includes a handle 120 and an electrode head 130. It should be noted that the handle 120 and the electrode head 130 are connected along a first direction X to form the housing 100. That is, in this embodiment, the housing 100 is divided into two parts along the first direction X: the handle 120 and the electrode head 130. The handle 120 is the part that is held in the hand, so that the user can hold the handle 120 to care for the user's skin through the electrode head 130.

[0062] Along the first direction X, the handheld part 120 is provided with an air inlet 140 at the end opposite to the electrode head 130, and the electrode head 130 is provided with an air outlet 150 at the end opposite to the handheld part 120. The air inlet 140 and the air outlet 150 are respectively connected to the cavity 110 to form an airflow channel 160, so that external gas can enter the cavity 110 through the air inlet 140 and be discharged from the air outlet 150, so as to form an airflow in the airflow channel 160, and dissipate heat from the light-emitting component 200, the cooler 300, the first heat sink 400 and the second heat sink 500 in the cavity 110 by the airflow flowing through the cavity 110.

[0063] The electrode head 130 has a light-transmitting part 131 on one side along the second direction Y, which can be sapphire glass or ruby ​​glass.

[0064] In some embodiments of this application, the light-transmitting portion 131 is curved sapphire glass. It should be noted that sapphire glass has excellent thermal, electrical, and dielectric properties, and is resistant to chemical corrosion. It is also heat-resistant, has good thermal conductivity, high hardness, infrared transmittance, and good chemical stability.

[0065] In addition, the light-emitting component 200 is housed in the cavity 110 and disposed in the electrode head 130. The light-emitting component 200 is connected to the inner wall of the housing 100 to ensure the stability of the light-emitting component 200 inside the electrode head 130 and the housing 100. The light emitted by the light-emitting component 200 can pass through the light-transmitting part 131, that is, the light emitted by the light-emitting component 200 passes through the light-transmitting part 131 and shines on the user's skin, thereby achieving skin care for the user.

[0066] The cooler 300 is disposed on the side of the light-transmitting portion 131 facing the light-emitting component 200, so that precise heating and cooling can be achieved during the operation of the cooler 300, helping to regulate skin temperature and enhance the cosmetic effect. It should be noted that in this embodiment, the cooler 300 has both heating and cooling functions. During use, the heating function of the cooler 300 can raise the skin temperature, thereby promoting blood circulation, collagen production, and firming the skin, and also aiding in the absorption of liquids applied to the skin surface. Additionally, the cooling function of the cooler 300 can shrink skin pores, relieve skin redness and inflammation, reduce discomfort during treatment, and decrease the risk of heat damage.

[0067] The first radiator 400 and the second radiator 500 are respectively housed in the cavity 110, and the first radiator 400 and the second radiator 500 are arranged alternately in the electrode head 130 to avoid mutual interference between the first radiator 400 and the second radiator 500 during operation, thereby ensuring the stability and heat dissipation quality of the first radiator 400 and the second radiator 500 during their respective operation.

[0068] Since optical components generate heat during operation, if the heat cannot be dissipated in time, the component temperature will be too high, reducing luminous efficiency, accelerating component aging, and shortening its lifespan.

[0069] Based on this, in this embodiment, the first heat sink 400 and the light-emitting component 200 are connected so that the light-emitting component 200 is cooled by the first heat sink 400, so as to prevent the temperature of the light-emitting component 200 from rising, thereby ensuring the temperature stability of the light-emitting component 200 and ensuring the stability and safety of the light-emitting component 200 during operation.

[0070] Since the cooler 300 in this application has both heating and cooling functions, if the heat cannot be dissipated in time, the temperature of the heated part of the cooler 300 will be too high, reducing the cooling efficiency. Overheating of the cooler 300 will also affect its working stability, causing the temperature of the electrode head 130 surface to rise, thus posing a risk of burns and causing safety hazards.

[0071] Based on this, in this embodiment, the second radiator 500 and the cooler 300 are connected so that the second radiator 500 can dissipate heat from the cooler 300, thereby ensuring the stability of the cooler 300 during operation, ensuring the stability of the cooler 300 during heating or cooling, extending the service life of the cooler 300, ensuring the safety of the user during use, and improving the skin care effect for the user.

[0072] The first radiator 400 is provided with multiple first heat dissipation channels 410, and the second radiator 500 is provided with multiple second heat dissipation channels 510. The first heat dissipation channels 410 and the second heat dissipation channels 510 are respectively connected to the airflow channel 160. It can be understood that the number of first heat dissipation channels 410 and the number of second heat dissipation channels 510 can be specifically set according to the actual situation.

[0073] It should be noted that increasing the number of first heat dissipation channels 410 can effectively improve the heat dissipation efficiency of the first heat sink 400 for the light-emitting component 200, and increasing the number of second heat dissipation channels 510 can effectively improve the heat dissipation efficiency of the second heat sink 500 for the cooler 300. This allows for separate heat dissipation for the light-emitting component 200 and the cooler 300, ensuring the temperature stability of the light-emitting component 200 and the cooler 300 during operation. This ensures the stability and safety of the light-emitting component 200 and the cooler 300 during operation, thereby ensuring that the light-emitting component 200 can provide stable light output during operation, thus improving the skin care and treatment effects for the user. This also ensures that the cooler 300 can provide a continuous and stable cooling or heating effect during operation, thus ensuring the stability of the temperature control provided by the cooler 300 for heating or cooling, thereby improving the skin care or treatment effects for the user and enhancing the user experience.

[0074] It is worth noting that in this embodiment, the axis of the first heat dissipation channel 410, the axis of the second heat dissipation channel 510, and the axis of the airflow channel 160 are parallel to ensure the smoothness and stability of the gas flowing through the airflow channel 160 into the first heat dissipation channel 410 and the second heat dissipation channel 510, thereby ensuring the stability of the first heat sink 400 in dissipating heat from the light-emitting component 200 and the stability of the second heat sink 500 in dissipating heat from the cooler 300.

[0075] like Figures 2 to 4 As shown, in some embodiments of this application, the outer peripheral side of the first heat sink 400 is spaced from the inner wall of the housing 100, so as to define a first annular airflow channel 170 by the outer peripheral side of the first heat sink 400 and the inner wall of the housing 100. This allows the airflow flowing through the cavity 110 to not only pass through the first heat dissipation channel 410, but also through the first annular airflow channel 170, thereby further improving the heat dissipation efficiency of the first heat sink 400. This ensures the stability of the heat dissipation of the first heat sink 400 to the light-emitting component 200, thereby effectively ensuring the temperature stability of the light-emitting component 200 during operation, and thus ensuring the stability of the light output of the light-emitting component 200.

[0076] In some embodiments, the outer peripheral side of the second radiator 500 is spaced from the inner wall of the housing 100, so as to define a second annular airflow channel 180 by the outer peripheral side of the first radiator 400 and the inner wall of the housing 100. This allows the airflow flowing through the cavity 110 to not only pass through the second heat dissipation channel 510, but also through the second annular airflow channel 180, thereby further improving the heat dissipation efficiency of the second radiator 500. This ensures the stability of the heat dissipation of the second radiator 500 to the cooler 300, thereby effectively ensuring the temperature stability of the cooler 300 during operation, and ensuring the stability of the cooler 300 during the cooling or heating process.

[0077] like Figure 2 and Figure 4 As shown, in some embodiments of this application, the hand tool further includes a fan 600, which is housed in the cavity 110 and the hand tool is disposed in the handheld part 120. The connection method between the fan 600 and the handheld part 120 includes any one of threaded connection, bolted connection, snap-fit, adhesive connection, or magnetic connection, and can be specifically set according to actual conditions.

[0078] The fan 600 has an air inlet 610 facing the air inlet end 140 and an air outlet 620 facing the air outlet end 150. It is understood that when the fan 600 is running, it can generate negative pressure at the air inlet end 140, allowing gas outside the housing 100 to enter the cavity 110 through the air inlet end 140, flow through the first radiator 400, the second radiator 500, the light-emitting component 200, and the cooler 300, and exit from the air outlet end 150. This creates an airflow in the cavity 110, allowing convective heat exchange between the first radiator 400 and the second radiator 500 and the gas, respectively. This removes heat from the first radiator 400 and the second radiator 500, creating continuous heat exchange. This further improves the heat dissipation quality and stability of the first radiator 400 and the second radiator 500, ensuring the temperature stability of the light-emitting component 200 and the cooler 300 during operation, thereby improving the skin care and treatment effects for the user and enhancing the user experience.

[0079] It should be noted that the fan 600 in this application is a high-speed blower 600. The high-speed blower 600 has a high-speed motor with a higher rotational speed, typically exceeding 100,000 rpm, and lower noise, further increasing airflow speed. Understandably, by configuring the fan 600, it can regulate the airflow speed and flow rate through the cavity 110 during operation, thereby regulating the flow rate of the gas passing through the first radiator 400 and the second radiator 500, and thus adjusting the heat dissipation efficiency of the first radiator 400 and the second radiator 500.

[0080] Convection heat transfer refers to the process by which heat is transferred from a high-temperature region to a low-temperature region when a fluid (such as air or liquid) flows over the surface of an object due to the temperature difference between the fluid and the surface.

[0081] like Figures 2 to 5 As shown, in some embodiments of this application, the hand tool includes a guide plate 700, which is disposed between the second radiator 500 and the fan 600 to guide the gas flowing through the first radiator 400 and the second radiator 500.

[0082] The guide plate 700 has a guide surface 710 facing the first radiator 400 and the second radiator 500, so that the gas in the cavity 110 can flow evenly through the first radiator 400 and the second radiator 500 under the guidance of the guide surface 710, thereby improving the stability and uniformity of heat dissipation between the first radiator 400 and the second radiator 500, and thus improving the heat dissipation quality.

[0083] like Figure 2 As shown, in some embodiments of this utility model, the angle between the guide surface 710 and the first direction X is α, wherein the value of α is in the range of 3°≤α≤10°.

[0084] It is understandable that the value of α can be any of 3°, 4°, 5°, 6°, 7°, 8°, 9°, or 10°, and can be set according to the actual situation.

[0085] In this embodiment, the angle α between the guide surface 710 and the first direction X is 5°, and the heat radiation generated by the second heat pipe 520 is reflected to the air outlet 150 through the guide surface 710, thereby reducing the heat radiation transmitted through the light-transmitting part 131, so as to improve the treatment effect and safety.

[0086] Optionally, in some embodiments, the guide plate 700 is rotatably connected to the housing 100, and the rotation axis of the guide plate 700 is perpendicular to the air outlet direction of the fan 600, so that the user can adjust the airflow direction through the guide surface 710 by adjusting the angle of the guide plate 700, thereby controlling the gas flow rate through the first radiator 400 and the second radiator 500, and thus adjusting the heat dissipation efficiency of the first radiator 400 and the second radiator 500.

[0087] For example, when the light-emitting component 200 is running, the angle of the guide plate 700 is adjusted to increase the airflow through the first heat sink 400, thereby improving the heat dissipation efficiency of the first heat sink 400 for the light-emitting component 200 and ensuring the stability of the light-emitting component 200 during operation. When the cooler 300 is running, the angle of the guide plate 700 is adjusted to increase the airflow through the second heat sink 500, thereby improving the heat dissipation efficiency of the second heat sink 500 for the cooler 300 and ensuring the stability of the cooler 300 during operation. When the light-emitting component 200 and the cooler 300 are running simultaneously, the angle of the guide plate 700 is adjusted to control the uniformity of the airflow through the first heat sink 400 and the second heat sink 500, thereby ensuring the stability of heat dissipation by the first heat sink 400 and the second heat sink 500, and thus ensuring the stability of the operation of the cooler 300 and the light-emitting component 200.

[0088] like Figures 2 to 5 As shown, in some embodiments of this application, the cooler 300 includes a cooling plate 310 and a semiconductor medium 320. The semiconductor medium 320 is disposed between the cooling plate 310 and the light-transmitting part 131 to form energy transfer and control between the cooling plate 310 and the light-transmitting part 131, so as to ensure stable energy output and precise regulation. The semiconductor medium 320 senses and controls the temperature to ensure that the hand tool maintains a safe temperature range during use, thereby ensuring the accuracy, quality and safety of the hand tool in skin care for the user, and improving the user experience.

[0089] In addition, semiconductor devices have the characteristic of high energy conversion efficiency, which can effectively reduce energy loss.

[0090] The side of the cooling plate 310 away from the semiconductor dielectric 320 is connected to the second heat sink 500 so that the cooling plate 310 can be cooled by the second heat sink 500 to ensure the temperature stability of the cooling plate 310 during operation.

[0091] In this embodiment, the cooling plate 310 has a heating surface 311 and a cooling surface 312 arranged opposite to each other along the second direction Y. During operation, the heating surface 311 releases heat, and the cooling surface 312 absorbs heat, thereby achieving cooling on one side of the cooling plate 310 along the second direction Y and heating on the other side. Furthermore, by changing the direction of the current, the cooling and heating functions can be switched, enabling the cooling plate 310 to achieve both the heating and cooling functions described in any of the above embodiments during operation.

[0092] like Figures 2 to 4As shown, in some embodiments of this application, the second heat sink 500 includes a plurality of second heat pipes 520 and a plurality of second heat sink plates 530.

[0093] It is understandable that the number of the second heat pipe 520 and the second heat sink 530 can be any number of two or more values, and can be set according to the actual situation.

[0094] In this configuration, multiple second heat sinks 530 are spaced apart on the side of the cooling plate 310 away from the light-transmitting portion 131, and two adjacent second heat sinks 530 form a second heat dissipation channel 510. Two adjacent second heat sinks 530 are parallel to each other, and the second heat sinks 530 are perpendicular to the second direction Y.

[0095] In addition, multiple second heat pipes 520 are respectively disposed on the edge of the cooling plate 310 to provide clearance for the light-emitting component 200. A gap exists between the second heat pipes 520 and the light-emitting component 200 to prevent the second heat pipes 520 from affecting the operating temperature of the light-emitting component 200. One end of the second heat pipe 520 is connected to the side of the cooling plate 310 away from the light-transmitting portion 131, and the other end of the second heat pipe 520 passes through the second heat sink 530 to facilitate heat conduction between the cooling plate 310 and the second heat sink 530.

[0096] In this embodiment, the number of second heat pipes 520 is at least four, and the number of second heat sinks 530 is at least ten. Increasing the number of second heat pipes 520 improves the efficiency with which they transfer heat generated by the cooler 300 to the second heat sinks 530, thereby increasing heat transfer efficiency. Furthermore, increasing the number of second heat sinks 530 improves the heat transfer efficiency between the second heat sinks 530 and the second heat pipes 520, allowing heat generated by the cooler plate 310 to be transferred to the second heat sinks 530 via the second heat pipes 520.

[0097] It should be noted that since the surface area of ​​the second heat sink 530 is larger than that of the second heat pipe 520, that is, the heat dissipation area of ​​the second heat sink 530 is larger than that of the second heat pipe 520, the heat transfer efficiency between the cooling plate 310 and the second heat sink 530 is improved by increasing the number of the second heat sink 530, thereby improving the heat dissipation efficiency of the second radiator 500 on the cooling plate 310.

[0098] In this embodiment, multiple second heat dissipation plates 530 are arranged at equal intervals along the second direction Y so that the volume of each second heat dissipation channel 510 is equal, that is, the flow rate of gas flowing through each second heat dissipation channel 510 is equal, so as to ensure the uniformity of heat dissipation.

[0099] like Figure 3 and Figure 6 As shown, in some embodiments of this application, the light-emitting component 200 includes a frame 210, a light-emitting element 220, and a light-transmitting plate 230. The frame 210 is disposed between the cooling plate 310 and the second heat dissipation plate 530. The frame 210 and the cooling plate 310 are connected, and there is a gap between the frame 210 and the second heat-conducting pipe 520 to avoid heat conduction between the frame 210 and the second heat-conducting pipe 520.

[0100] The frame 210 defines an installation space 211, and the light-emitting element 220 is disposed in the installation space 211. The light-emitting element 220 is connected to the frame 210 to ensure the stability of the light-emitting element 220 in the installation space 211.

[0101] In addition, the frame 210 has a light-transmitting opening 212 communicating with the installation space 211 on the side facing the cooler 300. The edge of the light-transmitting plate 230 is connected to the inner wall of the light-transmitting opening 212 and is covered by the light-transmitting part 131 so that the light emitted by the light-emitting element 220 can pass through the light-transmitting plate 230 and illuminate the light-transmitting part 131. The projection of the light-transmitting plate 230 along the second direction Y in the light-transmitting part 131 is in the light-transmitting part 131.

[0102] It is understandable that the light-emitting element 220 is aligned with the light-transmitting plate 230 and the light-transmitting part 131 along the second direction Y. The light-transmitting plate 230 is aligned with the light-transmitting part 131 along the second direction Y. This can minimize the loss of light energy during transmission, avoid excessively strong or weak light intensity in some areas, ensure that the light is evenly and accurately irradiated onto the skin surface, and guarantee the treatment effect.

[0103] In this embodiment, the light-emitting element 220 can be an LED or a laser diode.

[0104] It should be noted that by providing an installation space 211 in the frame 210 and sealing the light-transmitting opening 212 with a light-transmitting plate 230, the light-emitting element 220 is placed in the sealed installation space 211, forming a sealed light-emitting assembly 200. This prevents dust, grease, moisture, or other contaminants from entering the interior of the light-emitting element 220, thus avoiding affecting its performance and lifespan. It also isolates the light-emitting element 220 from moisture and corrosive substances in the air, preventing oxidation or corrosion of its metal components and protecting it from the influence of external environmental factors (such as temperature and humidity changes). This ensures the stability and consistency of light output, ensures that light propagates along a predetermined path, and avoids light scattering or energy loss due to external interference. Simultaneously, by placing the light-emitting element 220 in the frame 210, the heat generated by the light-emitting element 220 can be transferred to the frame 210. A first heat dissipation assembly is placed on the side of the frame 210 away from the light-transmitting part 131 to dissipate heat from the frame 210, thereby improving heat dissipation efficiency.

[0105] like Figure 3 and Figure 5 As shown, in some embodiments of this application, along the first direction X, a first heat insulation plate 240 is provided on one side of the frame 210, and a second heat insulation plate 250 is provided on the other side of the frame 210. One end of the light-emitting element 220 is connected to the first heat insulation plate 240, and the other end of the light-emitting element 220 is connected to the second heat insulation plate 250, so that the first heat insulation plate 240 and the second heat insulation plate 250 form a heat insulation effect on both sides of the light-emitting assembly 200 along the first direction X, so as to prevent heat from being transferred to other parts of the hand and avoid affecting the performance of other electronic components.

[0106] Since the light-emitting element 220 works more efficiently at a suitable temperature, the arrangement of the first heat insulation plate 240 and the second heat insulation plate 250 helps the light-emitting element 220 maintain this temperature range, improves the light efficiency, and thus effectively improves the working efficiency of the light-emitting element 220 and the quality of skin care for the user.

[0107] like Figure 4 As shown in some embodiments of this application, the first heat insulation plate 240 and the second heat insulation plate 250 are respectively provided with reflectors 270 on the side facing the light-emitting element 220. The reflective surface of the reflector 270 faces the light-emitting element 220 so that the light emitted by the light-emitting element 220 is reflected by the reflector 270, thereby reducing the heat generated at the first heat insulation plate 240 and the second heat insulation plate 250. This allows the heat generated by the light-emitting element 220 to be quickly conducted to the frame 210, which helps to dissipate heat and improves the heat dissipation efficiency.

[0108] like Figure 4As shown, in some embodiments of this application, the hand tool further includes a third direction Z that intersects the first direction X and the second direction Y in pairs.

[0109] The first heat sink 400 is disposed between the frame 210 and the second heat sink 530, with a gap between the first heat sink 400 and the second heat sink 530. The first heat sink 400 is disposed on the side of the frame 210 away from the light-transmitting part 131, so as to dissipate heat from the frame 210 through the first heat sink 400. Since the heat generated by the light-emitting element 220 can be conducted to the frame 210, the heat sink 400 dissipates heat from the frame 210 to ensure the temperature stability of the frame 210, thereby ensuring the temperature stability of the light-emitting component 200.

[0110] In this embodiment, the first heat sink 400 includes a plurality of first heat pipes 420 and a plurality of first heat sinks 430. The plurality of first heat pipes 420 are respectively disposed on the side of the frame 210 away from the light-transmitting part 131, and the plurality of first heat pipes 420 are arranged perpendicular to the second direction Y on the side of the frame 210 away from the light-transmitting part 131. One side of the first heat pipe 420 along the second direction Y is attached to the frame 210, and the other side of the first heat pipe 420 is attached to the first heat sink 430, so as to conduct the heat in the frame 210 to the first heat sink 430 through the first heat pipes 420, thereby realizing the control of the temperature of the frame 210.

[0111] Multiple first heat sinks 430 are arranged along the third direction Z, and two adjacent first heat sinks 430 are connected to define the first heat dissipation channel 410. The number of first heat sinks 430 can be any number of two or more values, and can be specifically set according to the actual situation.

[0112] In this embodiment, the number of first heat sinks 430 is at least ten. It can be understood that by increasing the number of first heat sinks 430, not only can the heat dissipation efficiency be improved, but the number of first heat dissipation channels 410 can also be increased. The increase in the number of first heat dissipation channels 410 increases the total flow rate of gas flowing through the first heat dissipation channels 410, thereby further improving the heat dissipation efficiency of the first radiator 400.

[0113] In addition, the first heat sink 430 is connected to the first heat pipe 420 on one side along the second direction Y, and the first heat sink 430 is spaced from the second heat sink 530 on the other side along the second direction Y, so that the heat on the first heat pipe 420 can be discharged through the first heat sink 430 to form heat conduction, so as to avoid the temperature of the frame 210 from rising, thereby ensuring the temperature stability of the light-emitting component 200.

[0114] like Figure 4 As shown, in some embodiments of this utility model, the first heat sink 430 includes a first bent plate 431, a connecting plate 432, and a second bent plate 433 connected together. The first bent plate 431 and the second bent plate 433 are respectively disposed on two opposite sides of the connecting plate 432 along the second direction Y, and the first bent plate 431 and the second bent plate 433 are respectively disposed on the same side in the thickness direction of the connecting plate 432. In this embodiment, the thickness direction of the connecting plate 432 refers to the third direction Z.

[0115] The first bending plate 431 is stacked on the side of the first heat-conducting pipe 420 away from the frame 210, and the second bending plate 433 is disposed on the side of the connecting plate 432 away from the first bending plate 431. It can be understood that by increasing the contact area between the first bending plate 431 and the first heat-conducting pipe 420, the heat conduction efficiency between the first bending plate 431 and the first heat-conducting pipe 420 is improved, that is, the heat conduction efficiency between the first heat sink 430, the first heat-conducting pipe 420, and the frame 210 is improved, thereby improving the heat dissipation efficiency of the first heat sink 400 on the light-emitting component 200.

[0116] It should be noted that the surface area of ​​the connecting plate 432 is larger than that of the first bending plate 431 and the second bending plate 433. That is, the heat of the first bending plate 431 can be conducted to the connecting plate 432. By increasing the surface area of ​​the connecting plate 432, the contact area between the airflow and the connecting plate 432 is increased, thereby improving the heat dissipation efficiency of the light-emitting component 200 and ensuring the temperature stability of the light-emitting component 200 during operation.

[0117] like Figure 4 and Figure 5 As shown, in some embodiments of this utility model, a third heat dissipation channel 190 is formed between the side of the first bent plate 431 near the second heat dissipation plate 530 and the second heat dissipation plate 530, so that the gas flowing through the cavity 110 can pass through the third heat dissipation channel 190. By setting the first bent plate 431 and the second heat dissipation plate 530 apart, heat conduction between the first heat dissipation plate 430 and the second heat sink 500 is prevented, so as to ensure the stability and efficiency of heat dissipation between the first heat sink 400 and the second heat sink 500.

[0118] like Figure 3 and Figure 6 As shown, in some embodiments of this application, the frame 210 is provided with a protruding ring 213 on the side facing the light-transmitting part 131, and the inner wall of the protruding ring 213 is adjacent to the edge of the light-transmitting plate 230.

[0119] The frame 210 further includes a light guide tube 260, which is disposed on the side of the frame 210 facing the light-transmitting part 131, and the outer wall of the light guide tube 260 is connected to the inner wall of the convex ring 213. The connection method between the light guide tube 260 and the convex ring 213 includes any one of the following: adhesive connection, snap-fit ​​connection, threaded connection, bolt connection, or magnetic connection.

[0120] In this embodiment, the inner wall of the light guide tube 260 is provided with a reflector 280, the reflective surface of which faces the axis of the light guide tube 260. The reflector 280 reflects the light that shines on the inner wall of the light guide tube 260, which helps to distribute the light evenly, prevents the local energy from being too high or too low, improves the treatment effect and safety, and also helps to conduct the light heat to the frame 210 to improve the heat dissipation efficiency.

[0121] Furthermore, the axis of the light guide tube 260 is parallel to the axis of the convex ring 213. The light guide tube 260 protrudes at least partially from the convex ring 213 along the second direction Y, and the light guide tube 260 protrudes towards the light-transmitting part 131. The light guide tube 260 can concentrate and guide the light emitted by the light-emitting element 220 to the light-transmitting part 131, reducing light energy scattering and loss. This ensures that more light energy can act on the user's skin during use, improving the care and treatment effect of the handpiece and enhancing the precision of the treatment. In addition, the light guide tube 260 can also evenly distribute the light emitted by the light-emitting element 220 onto the user's skin surface, avoiding excessively high or low light intensity in certain areas, thereby ensuring consistent treatment results.

[0122] like Figure 3 and Figure 5 As shown, in some embodiments of this application, the cooling plate 310 and the semiconductor medium 320 are respectively annular structures, and the cooling plate 310 and the semiconductor medium 320 are respectively surrounded around the light guide tube 260. The cooling plate 310 and the semiconductor medium 320 are respectively spaced apart from the light guide tube 260 to reduce temperature interference between the cooling plate 310 and the semiconductor medium 320 and the light guide tube 260. This can prevent the heat of the cooling plate 310 and the semiconductor medium 320 from being directly transferred to the light guide tube 260, affecting the performance of the light guide tube 260, so as to ensure the stability of the cooling plate 310 and the semiconductor medium 320 during operation, and ensure the stability and service life of the light guide tube 260.

[0123] like Figure 5As shown, in some embodiments of this application, the second heat pipe 520 includes a first heat-conducting section 521 and a second heat-conducting section 522, with the first heat-conducting section 521 attached to the cooling plate 310. It is understood that by increasing the contact area between the first heat-conducting section 521 and the cooling plate 310, the heat transfer efficiency between them is improved, thereby enabling the heat in the cooling plate 310 to be quickly transferred to the first heat-conducting section 521, thus ensuring the temperature stability of the cooling plate 310.

[0124] In this design, one end of the second heat-conducting section 522 is connected to one end of the first heat-conducting section 521, and the other end of the second heat-conducting section 522 passes through multiple second heat dissipation plates 530. It is understood that heat from the first heat-conducting section 521 can be conducted to the second heat-conducting section 522, and heat from the second heat-conducting section 522 can be conducted to the second heat dissipation plate 530. Thus, the heat generated by the cooling plate 310 is conducted to the second heat dissipation plate 530 through the second heat pipe 520. This allows airflow over the surface of the second heat dissipation plate 530 to carry away the heat, preventing the temperature of the cooling plate 310 from rising and ensuring the temperature stability of the cooling plate 310.

[0125] In addition, the multiple second heat sinks 530 are parallel to each other and are arranged at equal intervals. Specifically, the second heat-conducting section 522 passes through the multiple spaced second heat sinks 530 along the third direction Z, thereby connecting the multiple second heat sinks 530 to ensure the stability of the multiple second heat sinks 530 on the second heat-conducting section 522.

[0126] It should be noted that the multiple first heat-conducting sections 521 are arranged along the edge of the cooling plate 310 to ensure the heat conduction efficiency between the second heat-conducting section 522 and the second heat dissipation plate 530, while preventing the second heat-conducting section 522 from blocking the airflow through the first heat dissipation channel 410, thereby ensuring the uniformity, stability and quality of heat dissipation.

[0127] like Figures 2 to 5 As shown, in some embodiments of this application, the hand tool further includes a control board 800, which is housed in the cavity 110 and connected to the inner wall of the housing 100. The light-emitting component 200, the cooler 300, the first heat sink 400, the second heat sink 500, and the fan 600 are electrically connected to the control board 800, so as to control the starting or stopping of the light-emitting component 200, the cooler 300, the first heat sink 400, the second heat sink 500, and the fan 600 through the control board 800.

[0128] like Figure 1As shown in some embodiments of this application, the light-transmitting portion 131 has multiple electrode pads 900 on the side opposite to the light-emitting component 200. These electrode pads 900 are spaced apart at the edge of the light-transmitting portion 131. The electrode pads 900 can transmit radio frequency energy to heat deep skin tissue, stimulating collagen contraction and regeneration, achieving skin tightening and lifting effects. The electrode pads 900 can also transmit microcurrents to stimulate muscle movement, promote blood circulation and lymphatic drainage, and improve facial contours. Furthermore, by transmitting current, the electrode pads 900 can help the effective ingredients in skincare products penetrate deep into the skin (iontophoresis) or remove dirt and toxins from the skin (iontophoresis).

[0129] The 900 electrode pads can precisely deliver energy to the deep layers of the skin, thereby enhancing the treatment effect.

[0130] like Figures 2 to 4 As shown, in some embodiments of this utility model, the handheld part 120 is provided with an aviation connector 1000 at one end away from the electrode head 130, and the aviation connector 1000 is electrically connected to the control board 800.

[0131] In all examples shown and described herein, any specific values ​​should be interpreted as merely exemplary and not as limitations; therefore, other examples of exemplary embodiments may have different values.

[0132] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0133] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A hand tool having intersecting first and second directions, characterized in that, include: A housing defines a cavity. The housing includes a handheld part and an electrode head. Along the first direction, the handheld part has an air inlet at one end away from the electrode head, and the electrode head has an air outlet at one end away from the handheld part. The air inlet and the air outlet are respectively connected to the cavity to form an airflow channel. The electrode head has a light-transmitting part on one side along the second direction. A light-emitting component is housed in the cavity and disposed in the electrode head, and the light emitted by the light-emitting component can pass through the light-transmitting part; A cooler is disposed on the side of the light-transmitting portion facing the light-emitting component; A first heat sink and a second heat sink are disposed alternately in the electrode head. The first heat sink is connected to the light-emitting component, and the second heat sink is connected to the cooler. The first heat sink is provided with a plurality of first heat dissipation channels, and the second heat sink is provided with a plurality of second heat dissipation channels. The first heat dissipation channels and the second heat dissipation channels are respectively connected to the airflow channel.

2. The hand tool according to claim 1, characterized in that, The outer peripheral side of the first heat sink is spaced from the inner wall of the housing, so as to define a first annular airflow channel through the outer peripheral side of the first heat sink and the inner wall of the housing; And / or, the outer peripheral side of the second radiator is spaced from the inner wall of the housing to define a second annular airflow channel through the outer peripheral side of the first radiator and the inner wall of the housing.

3. The hand tool according to claim 1, characterized in that, The handpiece also includes a fan housed in the cavity and disposed in the handpiece, the fan having an air inlet facing the air inlet end and an air outlet facing the air outlet end.

4. The hand tool according to claim 3, characterized in that, The handpiece includes a guide plate disposed between the second radiator and the fan, the guide plate having a guiding surface facing the first radiator and the second radiator.

5. The hand tool according to claim 4, characterized in that, The angle between the guide surface and the first direction is α, where the value of α is in the range of 3°≤α≤10°.

6. The hand tool according to claim 1, characterized in that, The axis of the first heat dissipation channel and the axis of the second heat dissipation channel are parallel to the axis of the airflow channel, respectively.

7. The hand tool according to claim 1, characterized in that, The cooler includes a cooling plate and a semiconductor dielectric, the semiconductor dielectric being disposed between the cooling plate and the light-transmitting portion, and the side of the cooling plate facing away from the semiconductor dielectric being connected to the second heat sink; The cooling plate has a heating surface and a cooling surface arranged opposite to each other along the second direction.

8. The hand tool according to claim 7, characterized in that, The second heat sink includes multiple second heat pipes and multiple second heat dissipation plates; Multiple second heat sinks are spaced apart on the side of the cooling plate away from the light-transmitting part, and two adjacent second heat sinks are spaced apart to form a second heat dissipation channel. Multiple second heat pipes are respectively disposed on the edge of the cooling plate. One end of the second heat pipe is connected to the side of the cooling plate away from the light-transmitting part, and the other end of the second heat pipe passes through the second heat dissipation plate.

9. The hand tool according to claim 8, characterized in that, The light-emitting component includes a frame, light-emitting elements, and a light-transmitting plate; The frame is disposed between the cooling plate and the second heat sink, defining an installation space. The light-emitting element is disposed in the installation space. The side of the frame facing the cooler has a light-transmitting opening that communicates with the installation space. The edge of the light-transmitting plate is connected to the inner wall of the light-transmitting opening and covers the light-transmitting opening. The projection of the light-transmitting plate along the second direction onto the light-transmitting portion is in the light-transmitting portion.

10. The hand tool according to claim 9, characterized in that, Along the first direction, a first heat insulation plate is provided on one side of the frame, and a second heat insulation plate is provided on the other side of the frame; One end of the light-emitting element is connected to the first heat insulation plate, and the other end of the light-emitting element is connected to the second heat insulation plate.

11. The hand tool according to claim 10, characterized in that, The first heat insulation plate and the second heat insulation plate are respectively provided with reflectors on the side facing the light-emitting element, and the reflective surface of the reflectors faces the light-emitting element.

12. The hand tool according to claim 9, characterized in that, The handpiece also includes a third direction that intersects the first direction and the second direction in pairs; The first heat sink is disposed between the frame and the second heat sink plate. The first heat sink includes a plurality of first heat pipes and a plurality of first heat sink plates. The plurality of first heat pipes are respectively disposed on the side of the frame away from the light-transmitting part. Multiple first heat sinks are arranged along the third direction, and two adjacent first heat sinks are connected to define the first heat dissipation channel. The first heat sink is connected to the first heat pipe on one side along the second direction, and the first heat sink is spaced apart from the second heat sink on the other side along the second direction.

13. The hand tool according to claim 12, characterized in that, The first heat sink includes a first bent plate, a connecting plate, and a second bent plate connected together, wherein the first bent plate and the second bent plate are respectively disposed on two opposite sides of the connecting plate along the second direction; The first bent plate is stacked on the side of the first heat pipe away from the frame, and the second bent plate and the second heat dissipation plate are spaced apart to form a third heat dissipation channel.

14. The hand tool according to claim 12, characterized in that, The frame is provided with a protruding ring on the side facing the light-transmitting part, and the inner wall of the protruding ring is adjacent to the edge of the light-transmitting plate; The frame also includes a light guide tube, which is disposed on the side of the frame facing the light-transmitting part. The outer wall of the light guide tube is connected to the inner wall of the convex ring, and the light guide tube protrudes at least partially from the convex ring along the second direction. The inner wall of the light guide tube is provided with a reflector, and the reflective surface of the reflector faces the axis of the light guide tube.

15. The hand tool according to claim 14, characterized in that, The cooling plate and the semiconductor medium are respectively surrounded by the light guide tube, and the cooling plate and the semiconductor medium are respectively spaced apart from the light guide tube.

16. The hand tool according to claim 8, characterized in that, The second heat pipe includes a first heat-conducting section and a second heat-conducting section. The first heat-conducting section is attached to the cooling plate. One end of the second heat-conducting section is connected to one end of the first heat-conducting section, and the other end of the second heat-conducting section passes through multiple second heat dissipation plates.

17. The hand tool according to claim 16, characterized in that, Multiple first heat-conducting segments are arranged along the edge of the cooling plate.

18. The hand tool according to claim 3, characterized in that, The handpiece also includes a control board, which is housed in the cavity and connected to the inner wall of the housing. The light-emitting component, the cooler, the first heat sink, the second heat sink, and the fan are electrically connected to the control board.

19. The hand tool according to claim 1, characterized in that, The light-transmitting portion has multiple electrode plates on the side opposite to the light-emitting component, and the multiple electrode plates are arranged at intervals along the edge of the light-transmitting portion.

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