A heat dissipation device for range hoods

Abstract

This utility model relates to the field of heat dissipation device technology, specifically to a heat dissipation device for a range hood; it includes a heat dissipation shell, an electronic control component, and a heat dissipation assembly. The heat dissipation shell has heat dissipation holes; the electronic control component is located inside the heat dissipation shell and includes a PCB board and a control chip. The PCB board is detachably connected to the heat dissipation shell, and the control chip is mounted on the PCB board; the heat dissipation assembly includes a heat dissipation silicone pad and a thermally conductive connector. The heat dissipation silicone pad is detachably connected to the control chip, and the thermally conductive connector has a heat-conducting end and a heat-dissipating end. The heat-conducting end is detachably connected to the heat dissipation silicone pad and is located at the end of the heat dissipation silicone pad opposite to the control chip. The thermally conductive connector is inserted into the heat dissipation holes, and the heat-dissipating end is detachably connected to the bottom of the heat dissipation shell. The purpose of this utility model is to solve the problem that the control chip inside the existing housing is difficult to dissipate heat, which affects the working performance of the control chip.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation device technology, specifically to a heat dissipation device for a range hood. Background Technology

[0002] A range hood, also known as a cooking hood or exhaust hood, is an electrical appliance in the kitchen used to extract, filter, and remove cooking fumes, odors, water vapor, and other harmful gases produced during cooking. Existing range hoods are positioned above the kitchen stove to extract and exhaust cooking fumes generated while the user is cooking. The core function of a range hood is to improve kitchen air quality and reduce the health and environmental impact of cooking fumes.

[0003] The existing range hoods have their electronic control components installed inside the casing. When the range hood is working, the control chip on the electronic control component generates heat. The control chip has difficulty dissipating heat inside the casing. If the heat is not dissipated in time, the temperature of the control chip will rise, reducing the chip's performance and lifespan. Utility Model Content

[0004] The purpose of this utility model is to provide a heat dissipation device for range hoods, which solves the problem that the control chip inside the existing range hood is difficult to dissipate heat due to the fact that the electronic control components are installed inside the box, thus affecting the working performance of the control chip.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a heat dissipation device for a range hood, comprising:

[0006] A heat dissipation housing, wherein the heat dissipation housing is provided with heat dissipation holes;

[0007] An electronic control component is located inside the heat dissipation housing. The electronic control component includes a PCB board and a control chip. The PCB board is detachably connected to the heat dissipation housing, and the control chip is mounted on the PCB board.

[0008] A heat dissipation assembly includes a heat dissipation silicone pad and a thermally conductive connector. The heat dissipation silicone pad is detachably connected to the control chip. The thermally conductive connector has a thermally conductive end and a heat dissipation end. The thermally conductive end is detachably connected to the heat dissipation silicone pad and is located at the end of the heat dissipation silicone pad opposite to the control chip. The thermally conductive connector is inserted into the heat dissipation hole. The heat dissipation end is detachably connected to the bottom of the heat dissipation housing.

[0009] According to one embodiment of the present invention, the heat dissipation silicone pad is an elastic silicone pad, and the two ends of the elastic silicone pad are detachably connected to the control chip and the heat-conducting end, respectively. The area of ​​the top end of the elastic silicone pad is not less than the area of ​​the bottom end of the control chip.

[0010] According to one embodiment of the present invention, the heat-conducting connector includes a heat-conducting section, a supporting connection section, and a heat dissipation section;

[0011] The heat-conducting section has the heat-conducting end, the heat-conducting section is connected to the top end of the supporting connecting section, the heat dissipation section is connected to the bottom end of the supporting connecting section, the supporting connecting section is inserted into the heat dissipation hole, and the heat dissipation section has the heat dissipation end.

[0012] According to one embodiment of the present invention, the heat-conducting section, the supporting connecting section, and the heat dissipation section are integrally formed from a heat-conducting material, one end of the heat-conducting section is connected to the top end of the supporting connecting section, and one end of the heat dissipation section is connected to the bottom end of the supporting connecting section.

[0013] According to one embodiment of the present invention, the supporting connecting section is located on the same side of the heat-conducting section and the heat-dissipating section, and the connection between the heat-conducting section and the supporting connecting section and the heat-dissipating section are rounded.

[0014] According to one embodiment of the present invention, the area of ​​the heat-conducting end is not less than the area of ​​the bottom end of the heat-dissipating silicone pad, and the area of ​​the heat-dissipating end is not less than the area of ​​the heat-conducting end.

[0015] According to one embodiment of the present invention, a mounting groove is provided at the bottom end of the heat dissipation housing, the mounting groove is connected to the heat dissipation hole, a part of the heat dissipation section is embedded in the mounting groove, and the remaining part of the heat dissipation section extends out of the heat dissipation housing.

[0016] According to one embodiment of the present invention, it further includes a fixing component, wherein a fixing hole is provided at the bottom of the heat dissipation housing;

[0017] The fixing component includes a fixing post and a screw. The fixing post has a threaded hole and is located inside the heat dissipation housing. The top of the fixing post is detachably installed on the top of the heat dissipation housing. Each heat dissipation section has a stepped hole. The fixing hole, the threaded hole and the stepped hole are interconnected. The screw can be inserted into the stepped hole and the fixing hole in sequence and screwed into the threaded hole.

[0018] According to one embodiment of the present invention, the PCB board has a limiting hole, and the fixing post is inserted into the limiting hole.

[0019] According to one embodiment of the present invention, the heat dissipation housing includes a heat dissipation upper shell and a heat dissipation bottom shell;

[0020] The heat dissipation upper shell has a heat dissipation cavity, the electronic control component is installed in the heat dissipation cavity, the heat dissipation upper shell is detachably connected to the heat dissipation bottom shell, the top of the fixing column is installed on the heat dissipation upper shell, and the heat dissipation bottom shell has heat dissipation holes, fixing holes and mounting grooves.

[0021] The heat dissipation base shell has a second stepped hole, and the fixing components are provided in at least two sets. The screws in the first set of fixing components can be inserted into the first stepped hole and the fixing hole in sequence, and screwed into the threaded hole of the fixing post in the fixing component. The screws in the second set of fixing components can be inserted into the second stepped hole and screwed into the threaded hole of the fixing post in the second set of fixing components.

[0022] Compared with the prior art, the heat dissipation device for range hoods of this invention has the following advantages:

[0023] This utility model discloses a heat dissipation device for a range hood. Through the arrangement of a heat dissipation housing, an electronic control component, and a heat dissipation assembly, the electronic control component and the heat dissipation assembly are installed on the heat dissipation housing. During user operation, the control chip on the PCB board generates heat. This heat is transferred through a thermal pad to the thermally conductive end of a thermally conductive connector. The thermally conductive connector then conducts the heat through the heat dissipation holes to the heat dissipation end, thereby transferring the heat generated by the control chip inside the heat dissipation housing to the outside of the heat dissipation housing, thus achieving heat dissipation for the control chip. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0025] Figure 1 This is an exploded view of the overall structure of a heat dissipation device for a range hood according to the present invention;

[0026] Figure 2 This is a schematic diagram of the overall structure of a heat dissipation device for a range hood according to the present invention;

[0027] Figure 3 This is a cross-sectional view of a heat dissipation device for a range hood according to the present invention;

[0028] Figure 4 This is a bottom view of a heat dissipation device for a range hood according to the present invention.

[0029] In the diagram: Heat sink 1, heat dissipation hole 11, mounting slot 12, fixing hole 13, heat dissipation upper shell 14, heat dissipation bottom shell 15, second step hole 16, electronic control component 2, PCB board 21, control chip 22, limit hole 23, heat dissipation component 3, heat dissipation silicone pad 31, thermally conductive connector 32, thermally conductive section 321, support connection section 322, heat dissipation section 323, first step hole 324, fixing component 4, fixing post 41, screw 42.

[0030] The implementation and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0032] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0033] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0034] To further understand the content, features, and effects of this utility model, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings:

[0035] Currently, the top plate of the range hood's flue has a sheet metal flue partition. The lower surface of the sheet metal flue partition is the exhaust duct, while the upper surface of the sheet metal flue partition is separated from the exhaust duct. The range hood's electronic control components are installed on the upper surface of the sheet metal flue partition through a housing. When the range hood is working, the control chip on the electronic control components generates heat. The control chip has difficulty dissipating heat within the housing. If the heat is not dissipated in time, the temperature of the control chip on the electronic control components will rise, reducing the chip's performance and lifespan, thus affecting the chip's working performance.

[0036] Please see Figures 1 to 4 This utility model provides a heat dissipation device for a range hood, including a heat dissipation shell 1, an electronic control component 2, and a heat dissipation component 3.

[0037] The heat sink housing 1 has heat dissipation holes 11. The heat dissipation holes 11 are provided so that the heat generated by the control chip 22 on the electronic control component 2 inside the heat sink housing 1 can be transferred to the outside of the heat sink housing 1 through the heat dissipation component 3.

[0038] The electronic control component 2 is located inside the heat dissipation housing 1. The electronic control component 2 includes a PCB board 21 and a control chip 22. The PCB board 21 is detachably connected to the heat dissipation housing 1, and the control chip 22 is mounted on the PCB board 21. Specifically, the PCB board 21 and the heat dissipation housing 1 are detachably connected by adhesive bonding. The control chip 22 is used to control the range hood's oil extraction mode and lighting functions.

[0039] Please refer to the following: Figure 1 and Figure 3 The heat dissipation component 3 includes a heat-dissipating silicone pad 31 and a thermally conductive connector 32. The heat-dissipating silicone pad 31 is detachably connected to the control chip 22. The thermally conductive connector 32 has a heat-conducting end and a heat-dissipating end. The heat-conducting end is detachably connected to the heat-dissipating silicone pad 31 and is located at the end of the heat-dissipating silicone pad 31 opposite to the control chip 22. The thermally conductive connector 32 is inserted into the heat dissipation hole 11, and the heat-dissipating end is detachably connected to the bottom of the heat dissipation housing 1. In this embodiment, the heat-dissipating silicone pad 31 is located at the bottom end of the control chip 22, and the heat-dissipating silicone pad 31 and the control chip 22 are detachably connected by bonding with a thermally conductive material. The heat-dissipating silicone pad 31 enables rapid heat conduction of the heat generated by the control chip 22. The thermally conductive end is detachably connected to the heat-dissipating silicone pad 31 by bonding with a thermally conductive material, and the thermally conductive end is located at the bottom end of the heat-dissipating silicone pad 31, thereby enabling heat transfer between the control chip 22 and the thermally conductive end.

[0040] This invention, by mounting the electronic control component 2 and the heat dissipation component 3 onto the heat dissipation housing 1, allows the control chip 22 on the PCB board 21 to generate heat during operation. This heat is transferred through the thermal pad 31 to the thermally conductive end of the thermally conductive connector 32, which then conducts the heat through the heat dissipation hole 11 to the heat dissipation end. This transfers the heat generated by the control chip 22 inside the heat dissipation housing 1 to the outside, thus achieving heat dissipation for the control chip 22. Simultaneously, when the heat dissipation end contacts the upper surface of the sheet metal flue partition, the heat is transferred to the sheet metal flue partition. The airflow within the exhaust duct then dissipates heat from the sheet metal flue partition, further accelerating the heat dissipation of the control chip 22 inside the heat dissipation housing 1.

[0041] Based on the above embodiments, please also refer to... Figure 1 and Figure 3 The heat dissipation silicone pad 31 of this utility model is an elastic silicone pad. Both ends of the elastic silicone pad are detachably connected to the control chip 22 and the heat-conducting end, respectively. The area of ​​the top end of the elastic silicone pad is not less than the area of ​​the bottom end of the control chip 22. In this embodiment, both ends of the elastic silicone pad are detachably connected to the control chip 22 and the heat-conducting end by bonding with a thermally conductive material, thereby enabling rapid transfer of heat generated by the control chip 22 to the heat-conducting connector 32. During installation, the elastic silicone pad is deformed by the pressure of the heat-conducting end, causing both ends of the elastic silicone pad to adhere tightly to the control chip 22 and the heat-conducting end, preventing damage to the control chip 22 from stress and improving the efficiency of heat transfer. Simultaneously, because the area of ​​the top end of the elastic silicone pad is greater than or equal to the area of ​​the bottom end of the control chip 22, the elastic silicone pad can fully cover the bottom end of the control chip 22, thereby increasing the contact area of ​​the control chip 22 and further enhancing the heat dissipation effect.

[0042] Based on the above embodiments, please also refer to... Figure 1 and Figure 3 The thermally conductive connector 32 of this utility model includes a thermally conductive section 321, a supporting connecting section 322, and a heat dissipation section 323. In this embodiment, the thermally conductive connector 32 is an aluminum component made of aluminum.

[0043] The heat-conducting section 321 has a heat-conducting end and is connected to the top end of the supporting connecting section 322. The heat dissipation section 323 is connected to the bottom end of the supporting connecting section 322. The supporting connecting section 322 is inserted into the heat dissipation hole 11, and the heat dissipation section 323 has a heat dissipation end. In this embodiment, the supporting connecting section 322 supports the heat-conducting section 321 and transfers heat. The heat dissipation hole 11 limits the position of the supporting connecting section 322. After the heat dissipation section 323 is installed on the heat dissipation housing 1, the heat-conducting section 321 and the supporting connecting section 322 are fixed to prevent the heat-conducting connector 32 from shaking. During use, the heat-conducting end of the heat-conducting section 321 can better conduct heat to the elastic silicone pad. The supporting connecting section 322 transfers the heat from the heat-conducting section 321 to the heat dissipation section 323. The heat dissipation end of the heat dissipation section 323 dissipates the heat from the control chip 22 inside the heat dissipation housing 1 to the outside of the heat dissipation housing 1, preventing heat from accumulating inside the heat dissipation housing 1.

[0044] Based on the above embodiments, please also refer to... Figure 1 and Figure 3 The heat-conducting section 321, the supporting connecting section 322, and the heat dissipation section 323 of this utility model are integrally formed from a heat-conducting material. One end of the heat-conducting section 321 is connected to the top end of the supporting connecting section 322, and one end of the heat dissipation section 323 is connected to the bottom end of the supporting connecting section 322. The heat-conducting section 321, the supporting connecting section 322, and the heat dissipation section 323 are integrally formed from a heat-conducting material, such as one or more of gold, silver, copper, or aluminum. The integrally formed heat-conducting connector 32 facilitates better installation by the user and reduces the number of connections in the heat-conducting connector 32, thus improving heat dissipation.

[0045] Based on the above embodiments, please also refer to... Figure 1 and Figure 3 In this invention, the supporting connecting section 322 is located on the same side of the heat-conducting section 321 and the heat-dissipating section 323. The connection points between the heat-conducting section 321 and the supporting connecting section 322, and between the supporting connecting section 322 and the heat-dissipating section 323, are rounded. In this embodiment, the supporting connecting section 322 is located on the left side of the heat-conducting section 321 and the heat-dissipating section 323. Furthermore, by rounding the connection points between the heat-conducting section 321 and the supporting connecting section 322, and between the supporting connecting section 322 and the heat-dissipating section 323, the user avoids the supporting connecting section 322 directly supporting the middle of the heat-conducting section 321 during installation, thus preventing the thermal pad 31 from damaging the control chip 22.

[0046] Based on the above embodiments, please also refer to... Figure 1 and Figure 3The area of ​​the heat-conducting end of this invention is not less than the area of ​​the bottom end of the heat-dissipating silicone pad 31, and the area of ​​the heat-dissipating end is not less than the area of ​​the heat-conducting end. Specifically, the area of ​​the heat-conducting end is equal to the area of ​​the bottom end of the heat-dissipating silicone pad 31, and the area of ​​the heat-dissipating end is greater than the area of ​​the heat-conducting end. During use, the heat-conducting end completely covers the bottom end of the heat-dissipating silicone pad 31, thereby achieving heat conduction of the heat-dissipating silicone pad 31. At the same time, it increases the heat dissipation area of ​​the heat-dissipating end, thereby accelerating the heat dissipation effect of the heat-dissipating end.

[0047] Based on the above embodiments, please also refer to... Figure 1 and Figure 2 The heat dissipation housing 1 of this utility model has a mounting groove 12 at its bottom end, which communicates with the heat dissipation hole 11. A portion of the heat dissipation section 323 is embedded in the mounting groove 12, and the remaining portion of the heat dissipation section 323 extends out of the heat dissipation housing 1. In this embodiment, the upper half or two-thirds of the heat dissipation section 323 is embedded in the mounting groove 12, and the remaining portion of the heat dissipation section 323 extends out of the heat dissipation housing 1. Through the mounting groove 12, the user can limit the heat dissipation section 323 during installation. Simultaneously, the heat dissipation hole 11 limits the support connection section 322, thereby achieving better fixation of the heat-conducting connector 32 and preventing the heat-conducting connector 32 from transferring heat more effectively.

[0048] Based on the above embodiments, please also refer to... Figure 3 and Figure 4 The present invention also includes a fixing component 4, wherein a fixing hole 13 is provided at the bottom of the heat dissipation housing 1.

[0049] The fixing component 4 includes a fixing post 41 and a screw 42. The fixing post 41 has a threaded hole and is located inside the heat dissipation housing 1. The top of the fixing post 41 is detachably mounted on the top of the heat dissipation housing 1. Each heat dissipation section 323 has a stepped hole. The fixing hole 13, the threaded hole, and the stepped hole are interconnected. The screw 42 can be inserted into the stepped hole and the fixing hole 13 in sequence and screwed into the threaded hole. In this embodiment, the top of the fixing post 41 is detachably mounted on the top of the heat dissipation housing 1 by fixing it with a screw 42. The fixing hole 13, the threaded hole, and the stepped hole have the same hole axis. During installation, after the heat-conducting connector 32 is installed, the user inserts the screw 42 into the stepped hole and the fixing hole 13 in sequence, so that the screw 42 is aligned with the threaded hole. The screw 42 is screwed into the threaded hole, thereby fixing the heat dissipation section 323. At the same time, the supporting connector 322 supports and transfers heat to the heat-conducting section 321, allowing the heat-conducting section 321 to better fit against the elastic silicone pad.

[0050] Based on the above embodiments, please also refer to... Figure 1 and Figure 3 The PCB board 21 of this utility model has a limiting hole 23, and the fixing post 41 is inserted into the limiting hole 23. With the setting of the limiting hole 23, during the installation process, the fixing post 41 passes through the limiting hole 23, and the fixing post 41 further fixes the position of the PCB board 21, preventing the PCB board 21 from shaking during the use of the range hood.

[0051] Based on the above embodiments, please also refer to... Figure 1 and Figure 4 The heat dissipation housing 1 of this utility model includes a heat dissipation upper shell 14 and a heat dissipation bottom shell 15.

[0052] The upper heat dissipation shell 14 has a heat dissipation cavity, in which the electronic control component 2 is installed. The upper heat dissipation shell 14 is detachably connected to the lower heat dissipation shell 15. The top end of the fixing post 41 is installed on the upper heat dissipation shell 14. The lower heat dissipation shell 15 has heat dissipation holes 11, fixing holes 13, and mounting grooves 12. In this embodiment, the upper heat dissipation shell 14 and the lower heat dissipation shell 15 are snapped together.

[0053] The heat dissipation base 15 has a second stepped hole 16. At least two sets of fixing components 4 are provided. In the first set of fixing components 4, the screws 42 can be inserted sequentially into the first stepped hole 324 and the fixing hole 13, and screwed into the threaded hole of the fixing post 41 in the fixing component 4. In the second set of fixing components 4, the screws 42 can be inserted into the second stepped hole 16, and screwed into the threaded hole of the fixing post 41 in the second set of fixing components 4. Specifically, during installation, by setting two sets of fixing components 4, the screws 42 in the first set of fixing components 4 can be inserted sequentially into the first stepped hole 324 and the fixing hole 13, and screwed into the threaded hole of the fixing post 41 in the fixing component 4, thereby achieving better fixation of the heat dissipation component 3. The screws 42 in the second set of fixing components 4 can be inserted into the second stepped hole 16, and screwed into the threaded hole of the fixing post 41 in the second set of fixing components 4, thereby achieving better installation of the heat dissipation base 15 on the heat dissipation upper shell 14 and preventing the heat dissipation base 15 from shaking. In this embodiment, there are two fixing holes 13, two first step holes 324, and two second step holes 16. There are four sets of fixing components 4. The screws 42 in the two sets of fixing components 4 can be inserted into the corresponding first step holes 324 and fixing holes 13 in sequence, and screwed into the threaded holes of the fixing posts 41 in each set of fixing components 4. The screws 42 in the other two sets of fixing components 4 can be inserted into the corresponding second step holes 16, and screwed into the threaded holes of the fixing posts 41 in each set of fixing components 4, thereby achieving better fixation of the heat dissipation component 3 and the heat dissipation base shell 15.

[0054] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A heat dissipating device for a range hood, characterized by, include: A heat dissipation housing (1) is provided with heat dissipation holes (11); An electronic control component (2) is located inside the heat sink housing (1). The electronic control component (2) includes a PCB board (21) and a control chip (22). The PCB board (21) is detachably connected to the heat sink housing (1), and the control chip (22) is mounted on the PCB board (21). The heat dissipation assembly (3) includes a heat dissipation silicone pad (31) and a thermally conductive connector (32). The heat dissipation silicone pad (31) is detachably connected to the control chip (22). The thermally conductive connector (32) has a thermally conductive end and a heat dissipation end. The thermally conductive end is detachably connected to the heat dissipation silicone pad (31) and is located at the end of the heat dissipation silicone pad (31) away from the control chip (22). The thermally conductive connector (32) is inserted into the heat dissipation hole (11). The heat dissipation end is detachably connected to the bottom of the heat dissipation housing (1).

2. The heat dissipation device for a range hood according to claim 1, characterized in that, The heat dissipation silicone pad (31) is an elastic silicone pad. The two ends of the elastic silicone pad are detachably connected to the control chip (22) and the heat-conducting end, respectively. The area of ​​the top end of the elastic silicone pad is not less than the area of ​​the bottom end of the control chip (22).

3. The heat dissipation device for a range hood according to claim 1 or 2, characterized in that, The thermally conductive connector (32) includes a thermally conductive section (321), a supporting connection section (322), and a heat dissipation section (323); The heat-conducting section (321) has the heat-conducting end, the heat-conducting section (321) is connected to the top end of the supporting connecting section (322), the heat dissipation section (323) is connected to the bottom end of the supporting connecting section (322), the supporting connecting section (322) is inserted into the heat dissipation hole (11), and the heat dissipation section (323) has the heat dissipation end.

4. The heat dissipation device for a range hood according to claim 3, characterized in that, The heat-conducting section (321), the supporting connection section (322), and the heat dissipation section (323) are integrally formed from heat-conducting material. One end of the heat-conducting section (321) is connected to the top end of the supporting connection section (322), and one end of the heat dissipation section (323) is connected to the bottom end of the supporting connection section (322).

5. The heat dissipation device for a range hood according to claim 4, characterized in that, The supporting connecting section (322) is located on the same side of the heat-conducting section (321) and the heat-dissipating section (323), and the connection between the heat-conducting section (321) and the supporting connecting section (322) and the connection between the supporting connecting section (322) and the heat-dissipating section (323) are rounded.

6. The heat dissipation device for a range hood according to claim 3, characterized in that, The area of ​​the heat-conducting end is not less than the area of ​​the bottom end of the heat-dissipating silicone pad (31), and the area of ​​the heat-dissipating end is not less than the area of ​​the heat-conducting end.

7. The heat dissipation device for a range hood according to claim 3, characterized in that, The bottom end of the heat dissipation housing (1) is provided with a mounting groove (12), which is connected to the heat dissipation hole (11). A part of the heat dissipation section (323) is embedded in the mounting groove (12), and the rest of the heat dissipation section (323) extends out of the heat dissipation housing (1).

8. The heat dissipation device for a range hood according to claim 7, characterized in that, It also includes a fixing component (4), and the bottom of the heat dissipation housing (1) is provided with a fixing hole (13); The fixing component (4) includes a fixing post (41) and a screw (42). The fixing post (41) has a threaded hole. The fixing post (41) is located inside the heat dissipation housing (1). The top of the fixing post (41) is detachably installed on the top of the heat dissipation housing (1). The heat dissipation section (323) has a first stepped hole (324). The fixing hole (13), the threaded hole and the first stepped hole (324) are connected. The screw (42) can be inserted into the first stepped hole (324) and the fixing hole (13) in sequence and screwed into the threaded hole.

9. The heat dissipation device for a range hood according to claim 8, characterized in that, The PCB board (21) has a limiting hole (23), and the fixing post (41) is inserted into the limiting hole (23).

10. The heat dissipation device for a range hood according to claim 8, characterized in that, The heat dissipation housing (1) includes a heat dissipation upper shell (14) and a heat dissipation bottom shell (15); The heat dissipation upper shell (14) has a heat dissipation cavity, and the electronic control component (2) is installed in the heat dissipation cavity. The heat dissipation upper shell (14) is detachably connected to the heat dissipation bottom shell (15). The top end of the fixing column (41) is installed on the heat dissipation upper shell (14). The heat dissipation bottom shell (15) has the heat dissipation hole (11), fixing hole (13) and mounting groove (12). The heat dissipation base (15) is provided with a second stepped hole (16). The fixing component (4) is provided with at least two sets. The screw (42) in the first set of fixing components (4) can be inserted into the first stepped hole (324) and the fixing hole (13) in sequence, and screwed into the threaded hole of the fixing post (41) in the fixing component (4). The screw (42) in the second set of fixing components (4) can be inserted into the second stepped hole (16), and screwed into the threaded hole of the fixing post (41) in the second set of fixing components (4).

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