Heat dissipation module and motor

Abstract

The application provides a heat dissipation module and a motor. The heat dissipation module comprises a shell and a vibration assembly. The shell has a heat dissipation channel penetrating through the shell, and the heat dissipation channel is used for the circulation of cooling gas. The vibration assembly comprises a driving member and a vibration sheet connected by transmission. The vibration sheet is arranged in the heat dissipation channel, and the driving member is used for driving the vibration sheet to vibrate perpendicularly to the extension direction of the heat dissipation channel. According to the application, the vibration sheet capable of high-frequency vibration is arranged in the heat dissipation channel, the high-frequency vibration of the vibration sheet is used to convert the cooling gas from laminar flow to turbulent flow, the convection heat transfer coefficient of the cavity wall of the heat dissipation channel is greatly improved, and the heat dissipation effect of the heat dissipation module is improved.

Description

Heat dissipation module and motor Technical Field

[0001] This application belongs to the field of heat dissipation technology, specifically relating to heat dissipation modules and motors. Background Technology

[0002] Currently, heat sinks in heat dissipation modules are typically installed vertically. To increase the total heat exchange of this type of heat sink, the only way is to increase its surface area. However, once the surface area of ​​the heat sink increases to a certain extent, the effective space for the heat dissipation channels will decrease, gradually hindering airflow and reducing the heat dissipation effect of the heat dissipation module. Summary of the Invention

[0003] In view of this, the first aspect of this application provides a heat dissipation module, the heat dissipation module comprising:

[0004] The housing has a heat dissipation channel that extends through the housing, the heat dissipation channel being used for the flow of cooling gas;

[0005] The vibration assembly includes a drive member and a vibrating plate that are connected by a transmission. The vibrating plate is disposed in the heat dissipation channel, and the drive member is used to drive the vibrating plate to vibrate along the extension direction perpendicular to the heat dissipation channel.

[0006] The vibrating plate includes:

[0007] The first vibration part is disposed near the air inlet of the heat dissipation channel, and the first vibration part is connected to the driving component;

[0008] The second vibration part is connected to the first vibration part and is located near the air outlet of the heat dissipation channel. The second vibration part has multiple teeth arranged along the extension direction perpendicular to the heat dissipation channel.

[0009] The first vibration part has a first turbulence ramp and a second turbulence ramp set at an angle. Both the first turbulence ramp and the second turbulence ramp face the air inlet of the heat dissipation channel, and the length of the first turbulence ramp is greater than the length of the second turbulence ramp.

[0010] The second vibration part has a mating surface disposed away from the air inlet of the heat dissipation channel. The mating surface is set at an angle to the first turbulence slope and the second turbulence slope. The plurality of teeth are disposed on the mating surface, and the mating surface is set at an angle to the extension direction of the teeth.

[0011] The vibrating plate also includes a weight-increasing part, which is located at the top of the tooth and has a volume smaller than that of the tooth.

[0012] The heat dissipation channel includes a plurality of heat dissipation sub-channels arranged at intervals, and the housing also has an assembly groove that penetrates the cavity wall of the heat dissipation sub-channels along the arrangement direction of the plurality of heat dissipation sub-channels.

[0013] The vibration assembly includes multiple vibrating plates and connecting members. One vibrating plate is disposed in one of the heat dissipation sub-channels, and the connecting member is disposed in the assembly slot. The connecting member also connects multiple vibrating plates and the driving member.

[0014] The housing includes a first side and a second side disposed opposite to each other, and the heat dissipation channel is disposed between the first side and the second side;

[0015] The heat dissipation module further includes a guide portion, which has a guide space arranged along the extension direction perpendicular to the heat dissipation channel. One end of the connector is connected to the drive member, and the other end is disposed in the guide space. The drive member is disposed in one of the first side portion and the second side portion, and the guide portion is disposed in the other of the first side portion and the second side portion.

[0016] And / or, the first side and / or the second side are provided with receiving grooves, and at least a portion of the driving member is disposed in the receiving grooves.

[0017] The vibration assembly includes a first vibration group and a second vibration group. The first vibration group is located near the air inlet of the heat dissipation channel, and the second vibration group is located near the air outlet of the heat dissipation channel.

[0018] The vibration frequency of the vibrating plate in the second vibration group is greater than that of the vibrating plate in the first vibration group.

[0019] The second aspect of this application provides an electric motor, which includes a heating element and a heat dissipation module as provided in the first aspect of this application, wherein the heat dissipation module is disposed on one side of the heating element.

[0020] The heat dissipation module and motor provided in this application, by setting up a vibration component, place a high-frequency vibrating plate in the heat dissipation channel. The high-frequency vibration of the vibrating plate causes the cooling gas to change from laminar flow to turbulent flow, which greatly increases the convective heat transfer coefficient of the heat dissipation channel cavity wall, thereby improving the heat dissipation effect of the heat dissipation module. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the embodiments of this application will be described below.

[0022] Figure 1 is a schematic diagram of the structure of a heat dissipation module provided in one embodiment of this application.

[0023] Figure 2 is a side view of a heat dissipation module provided in one embodiment of this application.

[0024] Figure 3 is a structural schematic diagram of a vibration assembly provided in one embodiment of this application.

[0025] Figure 4 is a structural schematic diagram of a vibration assembly provided in another embodiment of this application.

[0026] Figure 5 is a schematic diagram of the structure of the vibrating plate provided in one embodiment of this application.

[0027] Figure 6 is a schematic diagram of the structure of the housing provided in one embodiment of this application.

[0028] Figure 7 is a structural schematic diagram of a vibration assembly provided in another embodiment of this application.

[0029] Labeling: Heat dissipation module 1, housing 10, heat dissipation channel 11, heat dissipation sub-channel 111, assembly slot 12, first side 13, second side 14, receiving slot 15, vibration assembly 20, first vibration group 20a, second vibration group 20b, driving component 21, vibration plate 22, first vibration part 221, first turbulence ramp 2211, second turbulence ramp 2212, second vibration part 222, mating surface 2221, tooth part 223, weight-adding part 224, connecting component 23, guide part 30, guide space 31. Detailed Implementation

[0030] The following are preferred embodiments of this application. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of this application, and these improvements and modifications are also considered to be within the scope of protection of this application.

[0031] In view of this, in order to solve the above problems, please refer to Figures 1-3. This embodiment provides a heat dissipation module 1, which includes a housing 10 and a vibration component 20. The housing 10 has a heat dissipation channel 11 that runs through the housing 10 and is used for the flow of cooling gas. The vibration component 20 includes a drive member 21 and a vibrating plate 22 that are connected by transmission. The vibrating plate 22 is disposed in the heat dissipation channel 11. The drive member 21 is used to drive the vibrating plate 22 to vibrate in a direction perpendicular to the extension direction of the heat dissipation channel 11.

[0032] The heat dissipation module 1 is used to dissipate heat from the heat-generating component. Specifically, the heat dissipation module 1 is located on one side of the heat-generating component and absorbs the heat energy of the heat-generating component. Cooling gas flows through the heat dissipation channel 11 of the heat dissipation module 1 and carries away the heat energy on the heat dissipation module 1, thereby realizing the heat dissipation function of the heat dissipation module 1. Optionally, the cooling gas is air.

[0033] Optionally, the heat dissipation module 1 can be applied to a motor. For example, the motor includes an iron core and a coil winding, with the coil winding surrounding the iron core. The heat dissipation module 1 is located on one side of the iron core and the coil winding. Furthermore, the housing 10 of the heat dissipation module 1 contacts the iron core, thereby improving the heat conduction efficiency and enhancing the heat dissipation effect of the heat dissipation module 1. Optionally, the motor is installed in a drone.

[0034] In addition to motors, heat dissipation module 1 can also be used in other fields, such as electronic equipment, vehicles, energy, and industrial manufacturing.

[0035] The housing 10 has a heat dissipation channel 11, which optionally extends through the housing 10 along its thickness direction. For example, the heat dissipation channel 11 extends vertically, and cooling gas can flow through the heat dissipation channel 11 from bottom to top or from top to bottom. The flow direction of the cooling gas is shown as direction D1 in Figure 2.

[0036] Optionally, the heat dissipation channel 11 includes a plurality of heat dissipation sub-channels 111, which are arranged at intervals and are used for the flow of cooling gas. Optionally, the plurality of heat dissipation sub-channels 111 are arranged in a horizontal direction.

[0037] Optionally, the drive member 21 is disposed on the housing 10. Further optionally, the drive member 21 is detachably connected to the housing 10, and the connection method between the drive member 21 and the housing 10 includes, but is not limited to, adhesive connection, threaded connection, snap-fit ​​connection, etc.

[0038] The vibration assembly 20 includes a drive element 21 and a vibrating plate 22. Optionally, the drive element 21 is directly connected to the vibrating plate 22, or the drive element 21 is indirectly connected to the vibrating plate 22 through other transmission components. The drive element 21 is used to drive the vibrating plate 22 to vibrate. Optionally, the drive element 21 includes a piezoelectric crystal, which can be energized according to a preset frequency. The piezoelectric crystal uses the piezoelectric effect to drive the vibrating element to perform high-frequency vibration. For example, the drive current required for the vibration of the piezoelectric crystal is provided in the form of PWM, and the vibration frequency and vibration amplitude of the piezoelectric crystal are controlled according to the high and low level durations of the duty cycle and the switching frequency.

[0039] Optionally, the number of vibration components 20 is at least one. When the number of vibration components 20 is multiple, the multiple vibration components 20 are arranged at intervals along the extension direction of the heat dissipation channel 11.

[0040] Specifically, the vibrating plate 22 is disposed within the heat dissipation channel 11, and the vibration direction of the vibrating plate 22 is perpendicular to the flow direction of the cooling gas to better promote turbulence in the cooling gas. For example, the cooling gas can flow through the heat dissipation channel 11 from bottom to top or from top to bottom, in which case the vibrating plate 22 vibrates in the left-right direction. The vibration direction of the vibrating plate 22 is shown as direction D2 in Figure 2.

[0041] In summary, the heat dissipation module 1 provided in this embodiment, by setting a vibration component 20, places a high-frequency vibrating vibrating plate 22 in the heat dissipation channel 11. The high-frequency vibration of the vibrating plate 22 causes the cooling gas to change from laminar flow to turbulent flow, which greatly increases the convective heat transfer coefficient of the cavity wall of the heat dissipation channel 11, thereby improving the heat dissipation effect of the heat dissipation module 1.

[0042] Please refer to Figures 4 and 5 together. In one embodiment, the vibrating plate 22 includes a first vibrating part 221 and a second vibrating part 222. The first vibrating part 221 is disposed near the air inlet of the heat dissipation channel 11 and is connected to the driving member 21. The second vibrating part 222 is connected to the first vibrating part 221 and is disposed near the air outlet of the heat dissipation channel 11. The second vibrating part 222 is provided with a plurality of teeth 223, which are arranged along the extension direction perpendicular to the heat dissipation channel 11.

[0043] The first vibration part 221 connects the driving member 21 and the second vibration part 222. The driving member 21 drives the first vibration part 221 to vibrate, thereby driving the second vibration part 222 to vibrate. Optionally, the first vibration part 221 is directly connected to the driving member 21, or the first vibration part 221 is indirectly connected to the driving member 21 through other transmission components. Optionally, the first vibration part 221 and the second vibration part 222 are integrally formed structural components. Optionally, the first vibration part 221, the second vibration part 222, and the toothed part 223 are integrally formed structural components.

[0044] Specifically, the second vibrating part 222 has a plurality of teeth 223 on the side opposite to the first vibrating part 221. The arrangement direction of the plurality of teeth 223 is perpendicular to the vibration direction of the vibrating plate 22. Optionally, at least some of the plurality of teeth 223 have the same shape, or the plurality of teeth 223 have different shapes.

[0045] Therefore, this embodiment, by setting the first vibration part 221 and the second vibration part 222 to cooperate with each other, realizes the conversion of the cooling gas from laminar flow to turbulent flow by the high-frequency vibration of the vibrating plate 22. Furthermore, the second vibration part 222 is provided with teeth 223. The teeth 223 can not only increase the area where the cooling gas forms turbulence and improve the turbulence effect of the vibrating plate 22 on the cooling gas, but also reduce the scale of turbulence, increase the turbulence of the turbulent cooling gas, and form more delicate turbulence, thereby further improving the convective heat transfer coefficient of the cavity wall of the heat dissipation channel 11 and further improving the heat dissipation effect of the heat dissipation module 1.

[0046] Furthermore, the first vibration part 221 has a first turbulence ramp 2211 and a second turbulence ramp 2212 arranged at an angle. Both the first turbulence ramp 2211 and the second turbulence ramp 2212 are arranged facing the air inlet of the heat dissipation channel 11, and the length of the first turbulence ramp 2211 is greater than the length of the second turbulence ramp 2212.

[0047] Specifically, the first turbulence ramp 2211 and the second turbulence ramp 2212 are respectively disposed on opposite sides of the first vibration part 221, and the ends of the first turbulence ramp 2211 and the second turbulence ramp 2212 near the air inlet of the heat dissipation channel 11 are connected, with the connection point of the first turbulence ramp 2211 and the second turbulence ramp 2212 being arc-shaped. This arrangement helps to reduce the flow resistance of the cooling gas, smoothly divides the cooling gas at the air inlet, and facilitates the conversion of the cooling gas from laminar flow to more intense turbulence.

[0048] Furthermore, the length of the first turbulence ramp 2211 is greater than the length of the second turbulence ramp 2212. This arrangement results in the mass of the portion with the first turbulence ramp 2211 being greater than the mass of the portion with the second turbulence ramp 2212. Due to the uneven mass distribution of the first vibrating part 221, and in conjunction with the drive component 21 driving the first vibrating part 221 to vibrate back and forth, the oscillation amplitudes of the portion with the first turbulence ramp 2211 and the portion with the second turbulence ramp 2212 are different, with the portion with the first turbulence ramp 2211 having a larger oscillation amplitude. On the one hand, this causes the vibrating plate 22 to produce an unbalanced torsional effect as a whole. On the other hand, it increases the turbulence difference of the cooling gas flowing to both sides of the first turbulence ramp 2211 and the second turbulence ramp 2212, thereby further improving the effect of the vibrating component in creating turbulence in the cooling gas, further improving the convective heat transfer coefficient of the heat dissipation channel 11 cavity wall, and further improving the heat dissipation effect of the heat dissipation module 1.

[0049] Furthermore, the second vibration part 222 has a mating surface 2221 disposed away from the air inlet of the heat dissipation channel 11. The mating surface 2221 is set at an angle to the first turbulence ramp 2211 and the second turbulence ramp 2212. The plurality of teeth 223 are disposed on the mating surface 2221. The mating surface 2221 is set at an angle to the extending direction of the teeth 223.

[0050] Optionally, the angle between the mating surface 2221 and the first turbulence ramp 2211 is smaller than the angle between the mating surface 2221 and the second turbulence ramp 2212.

[0051] Optionally, the angle between the mating surface 2221 and the first turbulence ramp 2211 is an acute angle.

[0052] Optionally, the angle between the mating surface 2221 and the extending direction of the tooth 223 is an acute angle.

[0053] Optionally, the teeth 223 are inclined in a direction away from the second turbulence ramp 2212.

[0054] Therefore, this embodiment further limits the mating surface 2221 to be angled with the first turbulence ramp 2211 and the second turbulence ramp 2212, and the tooth 223 is inclined on the mating surface 2221, thereby further improving the effect of the vibrating member on the cooling gas to form turbulence, further improving the convective heat transfer coefficient of the heat dissipation channel 11 cavity wall, and further improving the heat dissipation effect of the heat dissipation module 1.

[0055] Furthermore, the vibrating plate 22 also includes a weight-adding part 224, which is disposed at the top of the toothed part 223, and the volume of the weight-adding part 224 is smaller than the volume of the toothed part 223.

[0056] The weight-adding part 224 is located at the end of the toothed part 223 away from the air inlet of the heat dissipation channel 11. Optionally, the weight-adding part 224 is spherical or quasi-spherical. Optionally, the weight-adding part 224, the toothed part 223, the second vibration part 222, and the first vibration part 221 are integrally formed structural components.

[0057] Therefore, this embodiment increases the mass of the tip of the tooth 223 by providing a weight-adding part 224 in the tooth 223, thereby increasing the swing amplitude of the tooth 223. This further enhances the effect of the vibrating member on creating turbulence in the cooling gas, further increases the convective heat transfer coefficient of the heat dissipation channel 11 cavity wall, and further improves the heat dissipation effect of the heat dissipation module 1. Furthermore, the volume of the weight-adding part 224 is smaller than the volume of the tooth 223, thereby reducing the flow resistance of the weight-adding part 224 to the cooling gas.

[0058] Please refer to Figures 2 and 6 together. In another embodiment, the heat dissipation channel 11 includes a plurality of heat dissipation sub-channels 111 arranged at intervals. The housing 10 also has an assembly groove 12 that penetrates the cavity wall of the heat dissipation sub-channels 111 along the arrangement direction of the plurality of heat dissipation sub-channels 111.

[0059] The vibration assembly 20 includes a plurality of vibrating plates 22 and a connecting member 23. One vibrating plate 22 is disposed in one of the heat dissipation sub-channels 111, and the connecting member 23 is disposed in the assembly groove 12. The connecting member 23 also connects the plurality of vibrating plates 22 and the driving member 21.

[0060] Specifically, multiple heat dissipation sub-channels 111 are arranged at intervals, and the multiple heat dissipation sub-channels 111 are used for the flow of cooling gas. Optionally, the multiple heat dissipation sub-channels 111 are arranged in a horizontal direction. The housing 10 has a mounting groove 12 that extends horizontally through the cavity wall of the multiple heat dissipation sub-channels 111.

[0061] A vibrating plate 22 is provided in a heat dissipation sub-channel 111. A connecting member 23 passes through the assembly groove 12. Multiple vibrating plates 22 are connected by a connecting member 23, and the end of the connecting member 23 is connected to a driving member 21. The driving member 21 drives the connecting member 23 to vibrate left and right, thereby driving the vibrating plate 22 to vibrate left and right.

[0062] Therefore, by setting the assembly slot 12, the connector 23 connects multiple vibrating plates 22, saving energy, improving the working efficiency of the drive component 21, and reducing the mutual interference of the vibrating plates 22 between multiple heat dissipation sub-channels 111, ensuring that the cooling gas in each heat dissipation sub-channel 111 can form turbulence, thereby improving the heat dissipation uniformity and heat dissipation stability of the heat dissipation module 1.

[0063] Furthermore, the housing 10 includes a first side portion 13 and a second side portion 14 disposed opposite to each other, and the heat dissipation channel 11 is disposed between the first side portion 13 and the second side portion 14.

[0064] The heat dissipation module 1 further includes a guide portion 30, which has a guide space 31 arranged along the extension direction perpendicular to the heat dissipation channel 11. One end of the connector 23 is connected to the drive member 21, and the other end is disposed in the guide space 31. The drive member 21 is disposed in one of the first side portion 13 and the second side portion 14, and the guide portion 30 is disposed in the other of the first side portion 13 and the second side portion 14.

[0065] Optionally, the first side portion 13, the heat dissipation channel 11, and the second side portion 14 are arranged in a horizontal direction. For example, the driving member 21 is provided on the first side portion 13, and the guide portion 30 is provided on the second side portion 14. As another example, the guide portion 30 is provided on the first side portion 13, and the driving member 21 is provided on the second side portion 14.

[0066] The guide portion 30 has a guide space 31, which can be a guide hole or a guide groove, etc. Optionally, the guide space 31 extends horizontally. Some of the connecting members 23 are disposed within the guide space 31 to limit the vibration direction of the connecting members 23, thereby limiting the vibration direction of the vibrating member and improving the motion reliability of the vibration assembly 20.

[0067] And / or, the first side portion 13 and / or the second side portion 14 are provided with a receiving groove 15, and at least a portion of the drive member 21 is provided in the receiving groove 15.

[0068] Optionally, the driving member 21 contacts the lower side wall of the receiving groove 15, and there is a gap between the driving member 21 and the left side wall, right side wall and upper side wall of the receiving groove 15, so that while fixing the driving member 21 to the receiving groove 15, it also provides space for the driving member 21 to move during high-frequency vibration.

[0069] Please refer to Figures 6 and 7. In another embodiment, the vibration assembly 20 includes a first vibration group 20a and a second vibration group 20b. The first vibration group 20a is located near the air inlet of the heat dissipation channel 11, and the second vibration group 20b is located near the air outlet of the heat dissipation channel 11.

[0070] For example, the cooling gas flows from bottom to top. The first vibration group 20a is located in the lower half of the heat dissipation channel 11, and the second vibration group 20b is located in the upper half of the heat dissipation channel 11. The first vibration group 20a and the second vibration group 20b can respectively generate turbulence of the required intensity for the lower half and the upper half of the heat dissipation channel 11.

[0071] Therefore, this embodiment improves the heat dissipation uniformity and stability of the heat dissipation module 1 by setting vibration groups at the air inlet and air outlet of the heat dissipation channel 11 so that the cooling gas at all places in the heat dissipation channel 11 can form turbulence.

[0072] Furthermore, the vibration frequency of the vibrating plate 22 of the second vibration group 20b is greater than the vibration frequency of the vibrating plate 22 of the first vibration group 20a.

[0073] Since the outlet temperature of the heat dissipation channel 11 is higher than the inlet temperature of the heat dissipation channel 11, this embodiment limits the vibration frequency of the vibrating plate 22 of the second vibration group 20b to be greater than the vibration frequency of the vibrating plate 22 of the first vibration group 20a, so that the vibration amplitude of the vibrating plate 22 of the second vibration group 20b is larger, and the effect of forming turbulence on the cooling gas is stronger, which further improves the convective heat transfer coefficient of the cavity wall of the heat dissipation channel 11 and further improves the heat dissipation effect of the heat dissipation module 1.

[0074] This application also provides a motor, which includes a heating element and a heat dissipation module as described above, wherein the heat dissipation module is disposed on one side of the heating element.

[0075] The motor provided in this application adopts the heat dissipation module provided above. The heat dissipation module is equipped with a vibration component, in which a high-frequency vibrating plate is placed in the heat dissipation channel. The high-frequency vibration of the vibrating plate causes the cooling gas to generate a strong turbulence effect, which greatly increases the convective heat transfer coefficient of the heat dissipation channel cavity wall, thereby improving the heat dissipation effect of the heat dissipation module.

[0076] Unless otherwise stated or in case of conflict, the terms or phrases used in this application shall have the following meanings:

[0077] In this application, terms such as "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. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature.

[0078] In this application, "one or more" refers to any one, any two, or any two or more of the listed items. "Several" refers to any two or more.

[0079] In this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0080] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," 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, or the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0081] In this application, the terms "embodiment" and "implementation" mean that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this application. The appearance of these phrases in various locations throughout the specification does not necessarily refer to the same embodiment, nor are they independent or alternative embodiments mutually exclusive with other embodiments. Those skilled in the art will understand, explicitly and implicitly, that the embodiments described in this application can be combined with other embodiments. Furthermore, it should be understood that the features, structures, or characteristics described in the various embodiments of this application can be arbitrarily combined to form yet another embodiment that does not depart from the spirit and scope of the technical solution of this application, provided there is no contradiction between them.

[0082] The above description represents some embodiments of this application. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this application, and these improvements and modifications are also considered to be within the scope of protection of this application.

Claims

1. A heat dissipation module, characterized in that, The heat dissipation module includes: a housing having a heat dissipation channel penetrating the housing for the flow of cooling gas; a vibration assembly including a drive member and a vibrating plate connected by a drive mechanism, the vibrating plate being disposed within the heat dissipation channel, the drive member driving the vibrating plate to vibrate along a direction perpendicular to the extension of the heat dissipation channel, the vibrating plate generating unbalanced torsion; the vibrating plate includes: a first vibration part disposed near the air inlet of the heat dissipation channel, the first vibration part being connected to the drive member; and a second vibration part connected to the first vibration part disposed near the air outlet of the heat dissipation channel, the second vibration part having... The first vibration part has multiple teeth arranged along a direction perpendicular to the extension of the heat dissipation channel; the first vibration part has a first turbulence ramp and a second turbulence ramp set at an angle, both of which face the air inlet of the heat dissipation channel, and the length of the first turbulence ramp is greater than the length of the second turbulence ramp; the second vibration part has a mating surface set away from the air inlet of the heat dissipation channel, the mating surface being set at an angle to the first turbulence ramp and the second turbulence ramp, the multiple teeth being disposed on the mating surface, and the mating surface being set at an angle to the extension direction of the teeth.

2. The heat dissipation module as described in claim 1, characterized in that, The vibrating plate also includes a weight-increasing part, which is located at the top of the tooth and has a volume smaller than that of the tooth.

3. The heat dissipation module as described in claim 1, characterized in that, The heat dissipation channel includes multiple heat dissipation sub-channels arranged at intervals, and the housing also has an assembly groove that penetrates the cavity wall of the heat dissipation sub-channels along the arrangement direction of the multiple heat dissipation sub-channels; the vibration assembly includes multiple vibration plates and connecting members, one vibration plate is disposed in one of the heat dissipation sub-channels, the connecting member is disposed in the assembly groove, and the connecting member also connects the multiple vibration plates and the driving member.

4. The heat dissipation module as described in claim 3, characterized in that, The housing includes a first side and a second side disposed opposite to each other, and the heat dissipation channel is disposed between the first side and the second side; wherein, the heat dissipation module further includes a guide portion, the guide portion having a guide space disposed along the extension direction perpendicular to the heat dissipation channel, one end of the connector being connected to the drive member, and the other end being disposed in the guide space, the drive member being disposed in one of the first side and the second side, and the guide portion being disposed in the other of the first side and the second side; and / or, the first side and / or the second side are provided with a receiving groove, and at least a portion of the drive member is disposed in the receiving groove.

5. The heat dissipation module as described in claim 1, characterized in that, The vibration assembly includes a first vibration group and a second vibration group. The first vibration group is located near the air inlet of the heat dissipation channel, and the second vibration group is located near the air outlet of the heat dissipation channel.

6. The heat dissipation module as described in claim 5, characterized in that, The vibration frequency of the vibrating plate in the second vibration group is greater than that of the vibrating plate in the first vibration group.

7. An electric motor, characterized in that, The motor includes a heating element and a heat dissipation module as described in any one of claims 1-6, wherein the heat dissipation module is disposed on one side of the heating element.

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