Radiator for shaver, shaver head and electric shaver

Abstract

The utility model provides a radiator for a shaver, a shaver head and an electric shaver. A heat sink for a shaver, the heat sink for the shaver having a mounting axis, the heat sink for the shaver comprising: a first end portion; the first end part and the second end part are arranged at an interval along the mounting axis; the connecting wall part is connected between the first end part and the second end part, and the connecting wall part extends in the circumferential direction of the mounting axis; part of the connecting wall part is recessed towards the direction of the mounting axis so as to form a plurality of first heat dissipation components which are arranged at intervals, and a first heat dissipation space is formed between every two adjacent first heat dissipation components. According to the technical scheme, the radiator for the shaver solves the problem that in the prior art, the radiator for the shaver is poor in radiating capacity.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of shaver, specifically, a radiator for shaver, shaver head and electric shaver. BACKGROUND

[0002] In the shaving process, the blade rotates under the drive of the transmission mechanism and moves relative to the cutter net to generate heat through friction. This heat is transferred to the user's skin, causing the user to feel hot during shaving. Alternatively, when using a shaver in winter, direct contact between the shaver and the user's face can cause the user to feel cold. This reduces the comfort of using the shaver. Various cooling or heating devices for shavers have been described in the prior art, such as the provision of a Peltier element in the shaver head, with the cold or hot end of the Peltier element in contact with the skin contact area of the shaver to reduce or increase the heat sensation of the human skin. For details, refer to the Chinese patent with the granted announcement number CN214772196U and the invention name of shaver head and electric shaver. On the one hand, during the cooling process of the Peltier element on the skin contact area, the cold end of the Peltier element can cool down, and the heat of the cold end of the Peltier element is moved to the hot end. The hot end of the Peltier element will generate heat. This heat needs to be continuously removed from the hot end, otherwise the user may feel that the skin is being heated. On the other hand, in order to avoid the problem of heat transfer from the Peltier element to the handle causing the temperature of the handle to rise and reducing the service life of the electrical elements installed in the handle, a radiator is generally provided at the hot end of the Peltier element to dissipate heat from the hot end of the Peltier element. The heat dissipation capacity of the radiator not only affects the temperature of the cold end of the Peltier element, but also affects the service life of the electrical elements.

[0003] In the prior art, considering the floating function of the shaver, the energy conduction path of the cooling surface needs to be as short as possible to ensure the cooling effect. The thermostat (Peltier element) and the radiator are preferably arranged in the shaver head. The heat dissipation capacity of the radiator installed in the shaver head is weak, and the problem of poor heat dissipation of the hot end of the Peltier element easily occurs. UTILITY MODEL CONTENTS

[0004] The main purpose of the utility model is to provide a radiator for shaver, shaver head and electric shaver to solve the problem of weak heat dissipation capacity of the radiator for shaver in the prior art.

[0005] In order to achieve the above object, the utility model provides a radiator for shaver, radiator for shaver has installation axis, radiator for shaver includes: first end part, second end part, first end part and second end part are spaced apart along installation axis, connecting wall part is connected between first end part and second end part, connecting wall part extends along the circumference of installation axis, part connecting wall part is recessed to the direction of installation axis, to form the first heat dissipation component of multiple spaced arrangement, first heat dissipation space is formed between adjacent two first heat dissipation components.

[0006] Further, the plurality of first heat dissipation components are arranged along the circumference of the installation axis.

[0007] Further, the first end part is configured to be disposed towards the shaving unit, the second end part is located on a side of the first end part facing away from the shaving unit, part of the second end part is recessed towards the direction of the first end part to form a plurality of second heat dissipation components arranged at intervals, and a second heat dissipation space is formed between adjacent two second heat dissipation components.

[0008] Further, the plurality of second heat dissipation components are arranged along the circumference of the installation axis and / or in a direction perpendicular to the installation axis.

[0009] Further, the second end part is provided with an assembly portion, the assembly portion includes a main cavity, at least one auxiliary cavity in communication with the main cavity, a communication passage for the driven drive shaft to pass through, and a positioning column located in the main cavity, the auxiliary cavity is located on the circumferential side of the positioning column, one end of the communication passage communicates with the auxiliary cavity, the other end of the communication passage penetrates the first end part, the positioning column is configured to mount the driving gear, the axis of the positioning column forms the installation axis, and the auxiliary cavity is used to mount the driven gear.

[0010] Further, the first end part is provided with a mounting portion, the mounting portion is used to mount a temperature regulator, and at least part of the mounting portion is attached to the temperature regulator.

[0011] Further, the radiator for shaver is made of aluminum alloy, the specific heat capacity of the aluminum alloy is greater than 0.7*10 3 J / (kg·℃).

[0012] Further, the mass of the radiator for shaver is greater than or equal to 40g and less than or equal to 100g.

[0013] According to another aspect of the utility model, the utility model provides a shaver head, including head base and shaving unit, the head base includes: shell, top cover, the top cover is installed on the shell, the shaving unit has the skin contact area that can contact the user's skin, the above-mentioned radiator for shaver is installed in the shell, the temperature regulator is used for adjusting the temperature of the skin contact area, and the temperature regulator contacts the radiator for shaver.

[0014] Further, the shaver head further comprises: a shaving unit mounted to the head base; a transmission mechanism for driving the shaving unit, the transmission mechanism being mounted in the housing, the transmission mechanism comprising a driving gear, at least one driven gear arranged in meshing with the driving gear, and a driven driving shaft connected with the driven gear, the driven driving shaft being drivingly connected with the shaving unit, wherein the driving gear is mounted in the main cavity of the shaver radiator, the driven gear is mounted in the auxiliary cavity of the shaver radiator, and the driven driving shaft passes through the communication passage of the shaver radiator; and / or the shaver head further comprises a temperature guide member, one end of the temperature guide member being connected with the temperature regulator, and the other end of the temperature guide member extending to the skin contact area; or the inner wall of the housing is arranged in contact with the shaver radiator, and the housing is made of heat-conducting material; or the inner wall of the housing is arranged in spacing with the shaver radiator, and the housing is made of heat-insulating material.

[0015] According to another aspect of the present application, the present application provides an electric shaver comprising a handle and the shaver head as described above mounted to the handle.

[0016] According to the technical scheme of the present application, by recessing part of the connecting wall portion towards the direction of the mounting axis to form a plurality of first heat dissipation components arranged in spacing, and forming a first heat dissipation space between the adjacent two first heat dissipation components, the heat dissipation surface area on the connecting wall portion can be increased, so that the heat dissipation efficiency of the shaver radiator can be improved, and the heat dissipation capacity of the shaver radiator is further improved, so that the problem of weak heat dissipation capacity of the shaver radiator in the prior art can be solved, and the temperature regulator on the shaver can be better heat-dissipated. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings accompanying the specification of the present application form a part thereof, serve to provide further understanding of the present application, and together with the description of the exemplary embodiments of the present application and the explanation thereof serve to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 Fig. 1 shows a structure schematic view of an embodiment of the shaver radiator of the present application;

[0019] Figure 2 Fig. 2 shows a structure schematic view of another view angle of the shaver radiator of the present application; Figure 1

[0020] Figure 3 Fig. 3 shows a sectional view of the shaver radiator of the present application; Figure 2

[0021] Figure 4 Fig. 4 shows an exploded structure schematic view of an embodiment of the shaver head of the present application;

[0022] Figure 5 ​​A structure schematic view of an embodiment of the electric shaver is shown.

[0023] Figure 6 A cross-sectional view of the electric shaver is shown. Figure 5

[0024] Figure 7 An enlarged view of A of the electric shaver is shown. Figure 6

[0025] Among them, the above-mentioned drawings include the following reference signs:

[0026] 10, first end; 11, mounting portion; 20, second end; 30, connecting wall portion; 31, first heat dissipation component; 32, first heat dissipation space; 33, second heat dissipation component; 34, second heat dissipation space; 41, main cavity; 42, auxiliary cavity; 43, communication channel; 44, positioning column; 51, driving gear; 52, driven gear; 53, driven drive shaft; 60, shaver head; 61, shell; 62, top cover; 63, temperature regulator; 64, shaving unit; 641, blade; 642, blade net; 65, temperature guide component; 70, handle; 80, shaver radiator; 90, magnet; 110, driving drive shaft. DETAILED DESCRIPTION

[0027] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0028] It should be noted that in the embodiments of the present application, when the current direction is changed, the cold end and the hot end of the temperature regulator 63 are changed accordingly. The temperature guide component 65 can be in contact with the hot end or the cold end of the temperature regulator for heat transfer according to actual needs, so as to provide heat higher than the ambient temperature or cold quantity lower than the ambient temperature for the user.

[0029] As shown in Figures 1 to 7 The embodiments of the present application provide a shaver radiator. The shaver radiator 80 has a mounting axis, and the shaver radiator 80 includes a first end 10, a second end 20 and a connecting wall portion 30. Among them, the first end 10 and the second end 20 are arranged along the mounting axis; the connecting wall portion 30 is connected between the first end 10 and the second end 20, and the connecting wall portion 30 extends along the circumference of the mounting axis; part of the connecting wall portion 30 is recessed to the direction of the mounting axis to form a plurality of first heat dissipation components 31 arranged at intervals, and a first heat dissipation space 32 is formed between adjacent two first heat dissipation components 31.

[0030] ​​In the technical scheme, the part of the connecting wall portion 30 is recessed towards the direction of the installation axis to form a plurality of first heat dissipation components 31 arranged at intervals, and a first heat dissipation space 32 is formed between two adjacent first heat dissipation components 31. In this way, the heat dissipation surface area of the connecting wall portion 30 can be increased, so that the heat dissipation efficiency of the shaver heat dissipation device 80 can be improved, and the heat dissipation capacity of the shaver heat dissipation device 80 is further improved. In this way, the problem of weak heat dissipation capacity of the shaver heat dissipation device in the prior art can be solved, so as to better dissipate heat from the temperature regulator of the shaver.

[0031] Specifically, in the embodiment of the utility model, the connecting wall portion 30 is arranged obliquely relative to the first end portion 10 and / or the second end portion 20.

[0032] Preferably, in the embodiment of the utility model, the first end portion 10 is substantially parallel to the second end portion 20, and the connecting wall portion 30 is arranged obliquely relative to the first end portion 10 and the second end portion 20, so that the appearance of the shaver heat dissipation device 80 can be matched with the shape of the housing 61.

[0033] It should be noted that in the embodiment of the utility model, the connecting wall portion 30 is a side wall connected between the first end portion 10 and the second end portion 20, and the side wall is arranged around the installation axis.

[0034] As shown in Figure 2 In the embodiment of the utility model, the plurality of first heat dissipation components 31 are arranged in the circumferential direction of the installation axis. In this way, more first heat dissipation components 31 can be arranged in the limited space of the connecting wall portion 30, and the processing is also facilitated.

[0035] In one embodiment, part of the plurality of first heat dissipation components 31 can be arranged at intervals along the installation axis.

[0036] As shown in Figure 2 and Figure 4 In the embodiment of the utility model, the first end portion 10 is configured to be arranged towards the shaving unit 64, the second end portion 20 is located on the side of the first end portion 10 away from the shaving unit 64, and part of the second end portion 20 is recessed towards the direction of the first end portion 10 to form a plurality of second heat dissipation components 33 arranged at intervals, and a second heat dissipation space 34 is formed between two adjacent second heat dissipation components 33.

[0037] By the above arrangement, on the one hand, the heat dissipation efficiency of the shaver radiator 80 can be improved, and the heat dissipation capacity of the shaver radiator 80 can be improved, and on the other hand, the shaver unit 64 is transmitted to the second end portion 20 through the first end portion 10, and the heat dissipation is carried out through the second end portion 20, so that the heat accumulation between the first end portion 10 and the shaver unit 64 can be avoided, and the shaver unit 64 can be better heat dissipated.

[0038] As shown in Figure 2 In the embodiment of the utility model, a plurality of second heat dissipation components 33 are arranged along the circumferential direction of the mounting axis and the direction perpendicular to the mounting axis. In this way, more second heat dissipation components 33 can be arranged in the limited space of the second end portion 20, and the processing is facilitated.

[0039] In one embodiment, the plurality of second heat dissipation components 33 can also be arranged only in the circumferential direction of the mounting axis, or the plurality of second heat dissipation components 33 can also be arranged only in the direction perpendicular to the mounting axis.

[0040] Preferably, in the embodiment of the utility model, the first heat dissipation component 31 and the second heat dissipation component 33 are both heat dissipation fins, and the first heat dissipation space 32 and the second heat dissipation space 34 are both heat dissipation gaps.

[0041] As shown in Figure 2 In the embodiment of the utility model, the second end portion 20 is provided with an assembly portion, the assembly portion includes a main cavity 41 and at least one auxiliary cavity 42 communicated with the main cavity 41, the main cavity 41 is used for installing the driving gear 51, and the auxiliary cavity 42 is used for installing the driven gear 52. In this way, the driving gear 51 and the driven gear 52 can be installed while heat dissipation is realized, so that the structure of the electric shaver is more compact.

[0042] Preferably, in the embodiment of the utility model, the auxiliary cavity 42 is three, the three auxiliary cavities 42 are arranged at intervals around the main cavity 41, and at least one second heat dissipation component 33 is arranged between the adjacent two auxiliary cavities.

[0043] As shown in Figure 1 and Figure 2 In the embodiment of the utility model, the main cavity 41 and the auxiliary cavity 42 are both located in the second end portion 20, and the assembly portion further includes a communication passage 43 for the driven driving shaft 53 to pass through, one end of the communication passage 43 is communicated with the auxiliary cavity 42, and the other end of the communication passage 43 penetrates the first end portion 10.

[0044] By the above arrangement, on the one hand, the driving gear 51 and the driven gear 52 can be better transmission connection, and the driving gear 51 and the driven gear 52 can also avoid affecting the contact heat conduction between the first end 10 and the temperature regulator 63; on the other hand, the driven driving shaft 53 can pass through the communication channel 43 and be connected with the shaving unit 64, so that the driven gear 52 drives the shaving unit 64 to work through the driven driving shaft 53.

[0045] Preferably, in the embodiment of the utility model, the communication channel 43 is three, three communication channels 43 are set up with three sub-chambers 42 correspondingly.

[0046] As shown in Figure 2 and Figure 3 , in the embodiment of the utility model, the assembly part further includes a positioning column 44 connected to the second end 20, the positioning column 44 is located in the main chamber 41, the sub-chamber 42 is located on the circumferential side of the positioning column 44, the positioning column 44 is configured to install the driving gear 51, and the axis of the positioning column 44 forms an installation axis. In this way, the driving gear 51 can be installed.

[0047] It should be noted that, in the embodiment of the utility model, the axis (installation axis) of the positioning column 44 passes through the geometric center of the first end 10 and the geometric center of the second end 20.

[0048] As shown in Figure 1 , in the embodiment of the utility model, the first end 10 is provided with an installation part 11, the installation part 11 is used to install the temperature regulator 63, and at least part of the installation part 11 is attached to the temperature regulator 63. In this way, the temperature regulator 63 can be installed on the first end 10, and the heat generated by the hot end of the temperature regulator 63 can be transmitted to the connecting wall part 30 and the second end 20 through the installation part 11 to dissipate heat for the temperature regulator 63.

[0049] Preferably, the hot end of the temperature regulator 63 is attached to the installation part 11 to dissipate heat for the temperature regulator 63.

[0050] As shown in Figure 1 , in the embodiment of the utility model, the installation part 11 is an installation cavity formed by recessing part of the first end 10 towards the direction where the second end 20 is located, the installation cavity has an opening, and the bottom wall of the installation cavity is planar and attached to the temperature regulator 63.

[0051] By the above arrangement, not only can the contact area between the temperature regulator 63 and the installation part 11 be increased to improve the heat conduction efficiency between the temperature regulator 63 and the razor radiator 80, but also the cold end of the temperature regulator 63 can be in contact with the temperature guide member 65 through the opening, so that the heat of the temperature regulator 63 can be transmitted to the skin contact area through the temperature guide member 65.

[0052] As shown in Figure 1As shown, in the embodiment of the utility model, the installation part 11 is located at the approximate middle part of the first end part 10. In this way, the distance between the temperature regulator 63 and each position of the connecting wall part 30 can be more uniform, thereby improving the heat dissipation effect.

[0053] It should be noted that, in the embodiment of the utility model, the approximate middle part of the first end part 10 refers to the region surrounded by the three communication channels 43.

[0054] Preferably, in the embodiment of the utility model, the shaver heat sink 80 is selected from one or a combination of several of the following: heat pipe, uniform temperature plate, super heat pipe, super heat plate, and heat conduction element made of single heat conduction material. In this way, the processing is facilitated.

[0055] Specifically, in the embodiment of the utility model, the shaver heat sink 80 is made of aluminum alloy, and the specific heat capacity of the aluminum alloy is greater than 0.7*10 3 J / (kg·℃). Since the aluminum alloy material has a high thermal conductivity and a low density, the shaver heat sink 80 made of aluminum alloy has a lighter weight under the same volume, which can avoid the weight of the shaver head being too large, and can also ensure the heat dissipation effect at the same time.

[0056] Specifically, in the embodiment of the utility model, the mass of the shaver heat sink 80 is greater than or equal to 40g and less than or equal to 100g. In this way, the miniaturization requirement can be met while ensuring good heat dissipation effect.

[0057] As shown in Figure 4 and Figure 7 The embodiment of the utility model also provides a shaver head, which comprises a head base and a shaving unit 64, and the head base comprises: a shell 61 and a top cover 62; the top cover 62 is installed on the shell 61, the shaving unit 64 has a skin contact area that can contact the skin of a user; the shaver heat sink 80 described above is installed in the shell 61; a temperature regulator 63 is used to adjust the temperature of the skin contact area, and the temperature regulator 63 is in contact with the shaver heat sink 80. In this way, the shaver heat sink 80 described above is installed in the shell 61 of the shaver head, which can improve the heat dissipation effect of the shaver head and also avoid the weight of the shaver head being too large; on the other hand, the energy conduction path between the temperature regulator 63, the temperature guide member 65 and the skin contact area can be shortened to avoid the problem of poor refrigeration effect caused by energy loss; at the same time, heat transfer to the handle for the user to hold when using can be avoided; in addition, the shaver heat sink 80 is arranged on the head so that the shaver can be designed as a floating shaver without considering the heat conduction between the handle and the head.

[0058] As shown in Figure 7As shown in the embodiment of the utility model, the shaver head 60 further comprises: a shaving unit 64, which is installed on the shaver head base; a transmission mechanism, which is used to drive the shaving unit 64, the transmission mechanism is installed in the shell 61, the transmission mechanism comprises a driving gear 51, at least one driven gear 52 which is meshed with the driving gear 51 and a driven driving shaft 53 which is connected with the driven gear 52, the driven driving shaft 53 is drivingly connected with the shaving unit 64, wherein the driving gear 51 is installed in the main cavity 41 of the shaver radiator 80, the driven gear 52 is installed in the auxiliary cavity 42 of the shaver radiator 80, and the driven driving shaft 53 is arranged in the communication passage 43 of the shaver radiator 80. In this way, the driving gear 51, the driven gear 52 and the driven driving shaft 53 can be installed while achieving heat dissipation, so that the structure of the shaver head 60 is more compact, and the shaver radiator 80 and the transmission mechanism can be installed in the limited space of the shaver head, so that the heat dissipation capacity is improved while the power transmission is considered.

[0059] As Figure 7 shown in the embodiment of the utility model, the shaving unit 64 comprises a fixing frame, a blade 641 which is rotatably arranged on the fixing frame and a cutter screen 642 which is arranged on the blade 641, wherein the blade 641 is connected with the driven driving shaft 53, so as to drive the blade 641 to operate.

[0060] Specifically, in the embodiment of the utility model, the shaver head 60 further comprises a shaver head frame for installing the fixing frame, and the shaver head frame is installed on the shaving unit 64.

[0061] In one embodiment, the driving gear 51 and / or the driven gear 52 can be provided with a fan blade, so that when the driving gear 51 and / or the driven gear 52 operates, the fan blade installed thereon can push the airflow to flow through the heat dissipation gap, so as to increase the contact area between the airflow and the shaver radiator 80, thereby accelerating heat dissipation.

[0062] Specifically, in the embodiment of the utility model, the transmission mechanism further comprises a driving shaft 110, the driving shaft 110 is connected with the driving gear 51, when the shaver head 60 is connected to the handle 70, the driving shaft 110 is driven by the motor in the handle 70, so as to drive the driving gear 51 to rotate, the driving gear 51 drives the driven gear 52 to rotate, the driven gear 52 drives the driven driving shaft 53 to rotate, and the blade 641 is further driven to move.

[0063] As Figure 4 and Figure 7As shown, in the embodiment of the utility model, the shaving head further comprises a temperature guide component 65, one end of the temperature guide component 65 is connected with the temperature regulator 63, and the other end of the temperature guide component 65 extends to the skin contact area. In this way, the temperature guide component 65 can transmit the cold or heat generated by the temperature regulator 63 to the skin contact area to cool or heat the skin contact area. When shaving or cutting hair, the skin contact area can contact the user's skin.

[0064] Specifically, in the embodiment of the utility model, one end of the temperature guide component 65 is attached to the cold end of the temperature regulator 63, and the other end of the temperature guide component 65 is attached to the shaving unit or is arranged adjacent to the shaving unit to be directly attached to the user's skin.

[0065] As shown, Figure 7 In the embodiment of the utility model, the inner wall of the shell 61 is in contact with the shaving-heater 80, and the shell 61 is made of heat-conducting material. In this way, the heat dissipation volume can be effectively increased, so that the heat generated by the temperature regulator 63 can be removed from the hot end through the shaving-heater 80 and transmitted to the environment, thereby achieving the purpose of rapid cooling.

[0066] In one embodiment, the inner wall of the shell 61 is spaced apart from the shaving-heater 80, and the shell 61 is made of heat-insulating material. In this way, the user can be prevented from being scalded when touching the shaving head shell.

[0067] Specifically, in the embodiment of the utility model, the shaving head further comprises a magnet 90 arranged on the head base, and a magnet 90 arranged on the shaving unit 64, and the head base and the shaving unit 64 are magnetically attracted through the two magnets 90 to realize detachable connection. In addition, the magnet 90 can also be arranged on the shaving-heater 80, or arranged between the top cover 62 and the shaving-heater 80.

[0068] Specifically, in the embodiment of the utility model, the top cover 62 is provided with a hollow part through which the temperature guide component 65 and the driven driving shaft 53 pass.

[0069] The above shaving head has all the advantages of the above shaving-heater 80, which will not be repeated here.

[0070] As shown, Figure 5 and Figure 6 The embodiment of the utility model further provides an electric shaver, which comprises a handle 70 and the above-mentioned shaving head 60 mounted on the handle 70.

[0071] Preferably, in the embodiment of the utility model, the handle 70 is detachably connected with the shaving head 60.

[0072] The above electric shaver has all the advantages of the above shaving head, which will not be repeated here.

[0073] From the above description, it can be seen that the above-mentioned embodiments of the utility model realize the following technical effects: by making part of the connecting wall part recessed to the direction of the installation axis, a plurality of first heat dissipation components are formed, and a first heat dissipation space is formed between two adjacent first heat dissipation components, so that the heat dissipation surface area on the connecting wall part can be increased, thereby the heat dissipation efficiency of the razor heat dissipation device can be improved, and the heat dissipation capacity of the razor heat dissipation device is further improved, so that the problem of weak heat dissipation capacity of the razor heat dissipation device in the prior art can be solved, and the temperature regulator on the razor can be better heat dissipated.

[0074] The above only describes the preferred embodiments of the utility model and is not used to limit the utility model, and the utility model can have various changes and variations for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A heat sink for a shaver, characterized in that, The shaver radiator has an installation axis, and comprises: a first end portion (10); a second end portion (20) spaced apart from the first end portion (10) along the installation axis; a connecting wall portion (30) connected between the first end portion (10) and the second end portion (20) and extending circumferentially along the installation axis; part of the connecting wall portion (30) is recessed towards the installation axis to form a plurality of first heat dissipation components (31) spaced apart from each other, and a first heat dissipation space (32) is formed between any two adjacent first heat dissipation components (31).

2. The razor heat sink of claim 1, wherein, The plurality of first heat dissipation components (31) are arranged circumferentially along the installation axis.

3. The razor heat sink of claim 1, wherein, The first end portion (10) is configured to be arranged towards a shaving unit (64), and the second end portion (20) is located on a side of the first end portion (10) away from the shaving unit (64), part of the second end portion (20) is recessed towards the first end portion (10) to form a plurality of second heat dissipation components (33) spaced apart from each other, and a second heat dissipation space (34) is formed between any two adjacent second heat dissipation components (33).

4. The razor heat sink of claim 3, wherein, The plurality of second heat dissipation components (33) are arranged circumferentially along the installation axis and / or in a direction perpendicular to the installation axis.

5. The razor heat sink of any one of claims 1 to 4, wherein, The second end portion (20) is provided with a mounting portion, the mounting portion comprises a main cavity (41), at least one auxiliary cavity (42) in communication with the main cavity (41), a communication passage (43) for the driven driving shaft (53) to pass through, and a positioning column (44) located in the main cavity (41), the auxiliary cavity (42) is located on the circumferential side of the positioning column (44), one end of the communication passage (43) is in communication with the auxiliary cavity (42), the other end of the communication passage (43) penetrates through the first end portion (10), the positioning column (44) is configured to mount a driving gear (51), the axis of the positioning column (44) forms the installation axis, and the auxiliary cavity (42) is used to mount a driven gear (52).

6. The razor heat sink of any one of claims 1 to 4, wherein, The first end portion (10) is provided with a mounting portion (11) for mounting a temperature regulator (63), and at least part of the mounting portion (11) is in contact with the temperature regulator (63).

7. The razor heat sink of any one of claims 1 to 4, wherein, The heat sink (80) for the shaver is made of an aluminum alloy having a specific heat capacity greater than 0.7 x 10 3 J / (kg °C). The heat sink (80) for the shaver is made of an aluminum alloy having a specific heat capacity greater than 0.7 x 10 3 J / (kg °C). The heat sink (80) for the shaver is made of an aluminum alloy having a specific heat 8. The razor heat sink of any one of claims 1-4, wherein, The mass of the shaver radiator (80) is greater than or equal to 40g and less than or equal to 100g.

9. A shaving head characterized by, Comprise: a head base, the head base comprising a housing (61), a top cover (62) mounted on the housing (61); a shaving unit (64) having a skin contact area that can contact the skin of a user; the shaver radiator (80) of any one of claims 1 to 8 is mounted in the housing (61); a temperature regulator (63) for adjusting the temperature of the skin contact area, the temperature regulator (63) being in contact with the shaver radiator (80).

10. The shaving head of claim 9, wherein, The shaver head (60) further comprises: a shaving unit (64) mounted on the head base; A transmission mechanism is arranged in the housing (61) for driving the shaving unit (64), the transmission mechanism comprising a driving gear (51), at least one driven gear (52) arranged in meshing engagement with the driving gear (51), and a driven driving shaft (53) connected with the driven gear (52), the driven driving shaft (53) being in driving connection with the shaving unit (64), wherein the driving gear (51) is arranged in the main cavity (41) of the shaver radiator (80), the driven gear (52) is arranged in the auxiliary cavity (42) of the shaver radiator (80), and the driven driving shaft (53) is arranged in the communication passage (43) of the shaver radiator (80); and / or, The shaver head (60) further comprises a temperature guide member (65), one end of the temperature guide member (65) being connected with the temperature adjuster (63), and the other end of the temperature guide member (65) extending to the skin contact area; or, The inner wall of the housing (61) is arranged in contact with the shaver radiator (80), and the housing (61) is made of a heat-conducting material; or the inner wall of the housing (61) is arranged in spaced relationship with the shaver radiator (80), and the housing (61) is made of a heat-insulating material.

11. An electric shaver, characterized in that The shaver head (60) as claimed in claim 9 or 10 is arranged on a handle (70).

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