Heat dissipation structure of motor

Abstract

The utility model discloses a heat dissipation structure of motor, including motor assembly and heat dissipation subassembly, the motor assembly includes first casing, rotates and connects rotor subassembly in first casing, and is connected on the second casing of first casing one end, the heat dissipation subassembly includes the first heat dissipation device of being located in second casing, the first heat dissipation device includes reciprocating mechanism and heat dissipation channel, and reciprocating mechanism forms the suction effect when working, and the hot air in first casing is discharged through heat dissipation channel, the utility model discloses an integrated first heat dissipation device in second casing, and the suction effect of reciprocating mechanism forms the active heat dissipation, and effectively promotes the hot air discharge efficiency in the motor inside.

Description

Technical Field

[0001] This utility model relates to the technical field of motors, and in particular to a heat dissipation structure for motors. Background Technology

[0002] A car air pump, also called an air inflator, tire inflator, or tire pump, works by the operation of an internal motor. The principle is that when the motor operates, the valve of the pump is opened by atmospheric pressure, allowing air to enter the cylinder. When inflating the tire, the valve is closed by the pressure inside the cylinder, allowing air to enter the tire. It uses the principle of atmospheric pressure to inflate car tires, balls, and rubber boats.

[0003] Existing air pumps have the following problems: the motor has no heat dissipation function, and after prolonged use, the motor temperature rises to the zero point, burning out the motor and resulting in a short service life. Utility Model Content

[0004] Technical problems to be solved

[0005] The technical problem to be solved by this utility model is to provide a heat dissipation structure for an electric motor. By integrating the first heat dissipation device into the second housing, active heat dissipation is formed by the suction effect of the reciprocating motion mechanism, which effectively improves the efficiency of hot air discharge from the motor.

[0006] Technical solution

[0007] The solution adopted by this utility model to solve the above-mentioned technical problems is a heat dissipation structure for an electric motor, including an electric motor assembly and a heat dissipation assembly;

[0008] The motor assembly includes a first housing, a rotor assembly rotatably connected within the first housing, and a second housing connected to one end of the first housing;

[0009] The heat dissipation assembly includes a first heat dissipation device disposed inside the second housing. The first heat dissipation device includes a reciprocating motion mechanism and a heat dissipation channel. When the reciprocating motion mechanism is working, it forms a suction effect to discharge the hot air inside the first housing through the heat dissipation channel.

[0010] In some embodiments, the first housing and the second housing are arranged perpendicularly to each other. The second housing includes an end cap for closing one end of the first housing. The second housing also includes a rear end cap spaced apart from the end cap and arranged along the axis of the first housing. The rear end cap is a closed structure. A cylinder head assembly is connected to one end of the second housing located on its axis. The structural design of the first housing and the second housing being arranged perpendicularly optimizes space utilization, while the closed structure of the rear end cap enhances sealing and prevents external contaminants from entering.

[0011] By adopting the above solution, the first heat dissipation device is integrated into the second housing, and the suction effect of the reciprocating motion mechanism is used to form active heat dissipation, which effectively improves the efficiency of hot air discharge from the motor.

[0012] In some embodiments, the reciprocating motion mechanism includes a connecting rod assembly and a cylinder liner; the connecting rod assembly includes a connecting rod connected to one end of the rotor assembly extending out of the first housing, and a piston connected to one end of the connecting rod away from the rotor assembly, the piston being adapted within the cylinder liner; when the rotor assembly drives the connecting rod to rotate, the connecting rod can drive the piston to reciprocate linearly along the axial direction of the cylinder liner.

[0013] Using the above scheme, the reciprocating motion mechanism adopts a connecting rod-piston-cylinder liner structure, which converts rotary motion into reciprocating linear motion and directly uses the motor's own power to drive heat dissipation without the need for additional energy. The design of the cylinder liner and piston is simple and reliable, easy to maintain, and the airflow generated by the reciprocating motion is stable and efficient.

[0014] In some embodiments, the rotor assembly includes a rotating shaft, one end of the connecting rod is fixedly connected to the rotating shaft so that the connecting rod can rotate synchronously with the rotating shaft; the end of the connecting rod opposite to the rotating shaft is provided with a connecting shaft for connecting the piston component, the axis of the connecting shaft is parallel to the axis of the rotating shaft and is eccentrically spaced, so that the rotational motion of the connecting rod can drive the reciprocating linear motion of the piston component.

[0015] In some embodiments, the rotating shaft can pass through the end cover and extend into the second housing to connect with the connecting rod; a bearing is provided between the end cover and the rotating shaft, the structure of the rotating shaft passing through the end cover simplifies the transmission path, and the bearing support ensures rotational stability and reduces vibration and noise.

[0016] Using the above scheme, one end of the connecting rod is fixed to the rotating shaft, and the other end is equipped with an eccentric connecting shaft to connect to the piston. The eccentric connecting shaft converts rotational motion into linear motion, resulting in a mechanical structure that is efficient and low-loss. The bearing design reduces friction and extends service life. Furthermore, the piston stroke can be adjusted by changing the eccentricity to adapt to different heat dissipation requirements.

[0017] In some embodiments, the piston assembly includes a connecting rod portion connected to the connecting shaft, a rod body portion extending from the outer wall of the connecting rod portion, and a piston portion connected to the end of the rod body portion away from the connecting rod portion; and a bearing is provided between the connecting rod portion and the connecting shaft, and a seal is provided on the outer peripheral wall of the piston portion, the seal being in close contact with the inner wall of the cylinder liner.

[0018] In some embodiments, the piston portion is provided with a fifth vent hole to connect the spaces located at both ends of the piston portion.

[0019] By adopting the above solution, the seal is tightly attached to the inner wall of the cylinder liner to ensure airtightness, prevent airflow leakage, improve suction efficiency, and thus improve heat dissipation efficiency.

[0020] In some embodiments, the end of the second housing connected to the first housing has a first vent hole that connects the space between the two, and the second housing is also provided with a second vent hole that can connect to the outside. The reciprocating motion mechanism is located in the space between the first vent hole and the second vent hole inside the second housing.

[0021] In some embodiments, the end cap of the second housing is provided with the first vent hole, and the cylinder head assembly connected to the second housing is provided with the second vent hole.

[0022] Using the above scheme, the first vent and the second vent form a directional airflow path, creating an effective airflow circulation, which allows hot air to be directionally discharged from inside the motor to the outside, and the heat dissipation path is clear.

[0023] In some embodiments, the second housing is provided with an air storage plate assembly located between the second vent and the reciprocating motion mechanism, and the air storage plate assembly is provided with a third vent.

[0024] In some embodiments, the gas storage assembly includes a heat sink structure.

[0025] Using the above solution, the air storage plate assembly acts as a pressure buffer, reducing airflow noise; its heat sink structure increases the heat dissipation area and improves the secondary heat dissipation effect.

[0026] In some embodiments, a front cover is provided at the end of the first housing away from the second housing, and the front cover is provided with a fourth vent that can communicate with the outside; and the fourth vent, the first vent, the second vent and the third vent can communicate with each other to form the heat dissipation channel.

[0027] Using the above scheme, the fourth vent and the front cover work together to form an air intake channel, which, together with the first, second and third vents, forms a complete air duct, realizing an active heat dissipation cycle of "low intake and high exhaust", resulting in high heat dissipation efficiency.

[0028] In some embodiments, the heat dissipation assembly further includes a second heat dissipation device, which is disposed at the other end of the rotor assembly extending out of the first housing, for dissipating heat from the motor assembly.

[0029] By adopting the above solution, the second heat dissipation device and the first heat dissipation device form a dual heat dissipation system, covering both ends of the motor, resulting in more uniform heat dissipation.

[0030] In some embodiments, the second heat dissipation device includes a fan blade disposed at one end of the rotor assembly away from the first heat dissipation device and capable of rotating synchronously with the rotor assembly.

[0031] Using the above solution, the fan blades rotate synchronously with the rotor assembly, requiring no additional drive, resulting in a simple and efficient structure; the rotating fan blades generate forced convection, directly cooling the other end of the motor and compensating for the blind spots covered by the first heat dissipation device.

[0032] In some embodiments, one end of the rotating shaft of the rotor assembly is connected to the connecting rod, and the other end is connected to the fan blade; the rotating shaft can penetrate the front end cover of the first housing and connect to the fan blade to drive the fan blade to rotate; a bearing is provided between the front end cover and the rotating shaft.

[0033] Specifically, this utility model has a dual heat dissipation structure:

[0034] First-stage heat dissipation: The connecting rod drives the piston and cylinder liner to reciprocate linearly, creating a suction effect that discharges the hot air in the first housing through the end cover, air reservoir assembly and cylinder head assembly of the second housing.

[0035] The second level of heat dissipation: forced air cooling of the motor assembly is achieved through fan blades. Beneficial effects

[0036] Compared with the prior art, this utility model designs a heat dissipation structure for an electric motor.

[0037] This utility model integrates the first heat dissipation device into the second housing, and uses the suction effect of the reciprocating motion mechanism to form active heat dissipation, effectively improving the efficiency of hot air discharge from the motor.

[0038] The reciprocating motion mechanism of this utility model adopts a connecting rod-piston-cylinder sleeve structure, which converts rotary motion into reciprocating linear motion and directly uses the motor's own power to drive heat dissipation without the need for additional energy. The design of the cylinder sleeve and piston is simple and reliable, easy to maintain, and the airflow generated by the reciprocating motion is stable and efficient.

[0039] The connecting rod of this utility model is fixed to a rotating shaft at one end and connected to a piston at the other end by an eccentric connecting shaft. The eccentric connecting shaft is a mechanical structure that converts rotational motion into linear motion, which is efficient and low-loss. The bearing design reduces friction and extends service life. Furthermore, the piston stroke can be adjusted by changing the eccentricity to adapt to different heat dissipation requirements.

[0040] The fourth vent of this utility model, together with the front cover, forms an air intake channel, which, together with the first, second, and third vents, constructs a complete air duct, realizing an active heat dissipation cycle of "low inlet and high outlet", resulting in high heat dissipation efficiency.

[0041] This invention forms a dual heat dissipation system by combining the second heat dissipation device with the first heat dissipation device, covering both ends of the motor for more uniform heat dissipation.

[0042] The fan blades of this invention rotate synchronously with the rotor assembly, requiring no additional drive, and are simple and efficient in structure; the rotating fan blades generate forced convection, directly cooling the other end of the motor and compensating for the blind spots covered by the first heat dissipation device. Attached Figure Description

[0043] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 This is a schematic diagram of a heat dissipation structure for an electric motor according to the present invention.

[0045] Figure 2 This is a cross-sectional view of a heat dissipation structure for an electric motor according to the present invention.

[0046] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0047] Figure 4 This is a schematic diagram of the structure of the second housing of this utility model.

[0048] The component names corresponding to the various reference numerals in the figure are as follows: 100, First housing; 101, Front end cover; 1011, Fourth vent; 200, Rotor assembly; 201, Rotating shaft; 300, Second housing; 301, First vent; 302, Second vent; 303, End cover; 304, Rear end cover; 305, Cylinder head assembly; 400, First cooling device; 401, Reciprocating motion mechanism; 402, 403, 404, 405, 406, 407, 408, 409, 400, 400, 401, 402, 403, 404, 405, 406, 407, 408, 409, 400, 401 ... 1. Connecting rod assembly; 4011-1. Connecting rod; 4011-1a. Connecting shaft; 4011-2. Piston assembly; 4011-2a. Connecting rod section; 4011-2b. Rod body section; 4011-2c. Piston section; 4011-2d. Seal; 4012. Cylinder liner; 402. Heat dissipation channel; 500. Air reservoir assembly; 501. Third vent; 600. Second heat dissipation device; 601. Fan blade. Detailed Implementation

[0049] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but should not be used to limit the scope of this utility model.

[0050] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0051] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0052] It should be noted that the following description covers various aspects of embodiments within the scope of the appended claims. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0053] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0054] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.

[0055] The technical solutions provided by the various embodiments of this application are described below with reference to the accompanying drawings.

[0056] like Figures 1-4 As shown, this utility model provides a heat dissipation structure for an electric motor, including a motor assembly and a heat dissipation assembly; the motor assembly includes a first housing 100, a rotor assembly 200 rotatably connected within the first housing 100, and a second housing 300 connected to one end of the first housing 100; the heat dissipation assembly includes a first heat dissipation device 400 disposed within the second housing 300, the first heat dissipation device 400 including a reciprocating motion mechanism 401 and a heat dissipation channel 402, the reciprocating motion mechanism 401 forming a suction effect during operation, discharging hot air from the first housing 100 through the heat dissipation channel 402. In some embodiments, the first housing 100 and the second housing 300 are arranged perpendicularly to each other. The second housing 300 includes an end cap 303 for closing one end of the first housing 100. The second housing 300 also includes a rear end cap 304, which is spaced apart from the end cap 303 and arranged along the axis of the first housing 100. The rear end cap 304 is a closed structure. A cylinder head assembly 305 is connected to one end of the second housing 300 located on its axis. The structural design of the first housing 100 and the second housing 300 being arranged perpendicularly optimizes space utilization. At the same time, the closed structure of the rear end cap 304 enhances the sealing performance and prevents external contaminants from entering. By integrating the first heat dissipation device 400 into the second housing 300 and utilizing the suction action of the reciprocating motion mechanism 401 to form active heat dissipation, the efficiency of hot air exhaust from the motor is effectively improved.

[0057] In some embodiments, the reciprocating motion mechanism 401 includes a connecting rod assembly 4011 and a cylinder liner 4012; the connecting rod assembly 4011 includes a connecting rod 4011-1 connected to one end of the rotor assembly 200 extending out of the first housing 100, and a piston member 4011-2 connected to one end of the connecting rod 4011-1 away from the rotor assembly 200, the piston member 4011-2 being adapted to the cylinder liner 4012; when the rotor assembly 200 drives the connecting rod 4011-1 to rotate, the connecting rod 4011-1 can drive the piston member 4011-2 to reciprocate linearly along the axial direction of the cylinder liner 4012. The above scheme is adopted. The reciprocating motion mechanism 401 adopts the structure of connecting rod 4011-1-piston 4011-2-cylinder liner 4012, which converts the rotary motion into reciprocating linear motion and directly uses the motor's own power to drive heat dissipation without the need for additional energy. The design of the cylinder liner 4012 and piston 4011-2 is simple and reliable, easy to maintain, and the airflow generated by the reciprocating motion is stable and efficient. In some embodiments, the rotor assembly 200 includes a rotating shaft 201, and one end of the connecting rod 4011-1 is fixedly connected to the rotating shaft 201 so that the connecting rod 4011-1 can rotate synchronously with the rotating shaft 201. The end of the connecting rod 4011-1 opposite to the rotating shaft 201 is provided with a connecting shaft 4011-1a for connecting the piston 4011-2. The axis of the connecting shaft 4011-1a is parallel to and eccentrically spaced from the axis of the rotating shaft 201, so that the rotational motion of the connecting rod 4011-1 can drive the reciprocating linear motion of the piston 4011-2. In some embodiments, the rotating shaft 201 can pass through the end cover 303 and extend into the second housing 300 to connect with the connecting rod 4011-1. A bearing is provided between the end cover 303 and the rotating shaft 201. The structure of the rotating shaft 201 passing through the end cover 303 simplifies the transmission path, and the bearing support ensures rotational stability and reduces vibration and noise. Using the above scheme, one end of the connecting rod 4011-1 is fixedly connected to the rotating shaft 201, and the other end is provided with an eccentric connecting shaft 4011-1a to connect to the piston 4011-2; the eccentrically set connecting shaft 4011-1a converts rotational motion into linear motion, and the mechanical structure is efficient and low-loss. The bearing design reduces friction and extends service life; in addition, the piston stroke can be adjusted by changing the eccentricity to adapt to different heat dissipation requirements.In some embodiments, the piston member 4011-2 includes a connecting rod portion 4011-2a connected to the connecting shaft 4011-1a, a rod body portion 4011-2b extending from the outer wall of the connecting rod portion 4011-2a, and a piston portion 4011-2c connected to one end of the rod body portion 4011-2b away from the connecting rod portion 4011-2a; and a bearing is provided between the connecting rod portion 4011-2a and the connecting shaft 4011-1a, and a seal 4011-2d is provided on the outer peripheral wall of the piston portion 4011-2c, the seal 4011-2d being in close contact with the inner wall of the cylinder liner 4012. In some embodiments, the piston portion 4011-2c is provided with a fifth vent hole 4011-2e to communicate the spaces located at both ends of the piston portion 4011-2c. By adopting the above solution, the seal 4011-2d is tightly attached to the inner wall of the cylinder liner 4012 to ensure airtightness, avoid airflow leakage, improve suction efficiency, and thus improve heat dissipation efficiency.

[0058] In some embodiments, the end of the second housing 300 connected to the first housing 100 has a first vent 301 communicating with the space between the two. The second housing 300 also has a second vent 302 communicating with the outside. The reciprocating motion mechanism 401 is located within the space between the first vent 301 and the second vent 302 in the second housing 300. In some embodiments, the end cap 303 of the second housing 300 has the first vent 301, and the cylinder head assembly 305 connected to the second housing 300 has the second vent 302. Using the above scheme, the first vent 301 and the second vent 302 form a directional airflow path, creating an effective airflow circulation, allowing hot air to be directionally discharged from inside the motor to the outside, with a clear heat dissipation path. In some embodiments, an air storage plate assembly 500 is provided in the second housing 300 between the second vent 302 and the reciprocating motion mechanism 401, and the air storage plate assembly 500 has a third vent 501. In some embodiments, the air storage fin assembly 500 includes a heat sink structure. Using the above solution, the air storage fin assembly 500 acts as a pressure buffer, reducing airflow noise; its heat sink structure increases the heat dissipation area, improving the secondary heat dissipation effect. In some embodiments, a front cover 101 is provided at the end of the first housing 100 away from the second housing 300. The front cover 101 is provided with a fourth vent 1011 that can connect to the outside; and the fourth vent 1011, the first vent 301, the second vent 302, and the third vent 501 can communicate with each other, forming the heat dissipation channel 402. Using the above solution, the fourth vent 1011 cooperates with the front cover 101 to form an air intake channel, and together with the first, second, and third vents 501, constructs a complete air duct, achieving an active heat dissipation cycle of "low intake and high exhaust," resulting in high heat dissipation efficiency.

[0059] In some embodiments, the heat dissipation assembly further includes a second heat dissipation device 600, which is disposed at the other end of the rotor assembly 200 extending from the first housing 100, for dissipating heat from the motor assembly. With this solution, the second heat dissipation device 600 and the first heat dissipation device 400 form a dual heat dissipation system, covering both ends of the motor, resulting in more uniform heat dissipation. In some embodiments, the second heat dissipation device 600 includes a fan blade 601, which is disposed at the end of the rotor assembly 200 away from the first heat dissipation device 400 and can rotate synchronously with the rotor assembly 200. With this solution, the fan blade 601 rotates synchronously with the rotor assembly 200 without additional drive, resulting in a simple and efficient structure; the rotating fan blade 601 generates forced convection, directly cooling the other end of the motor and compensating for the coverage blind spot of the first heat dissipation device 400. In some embodiments, one end of the rotating shaft 201 of the rotor assembly 200 is connected to the connecting rod 4011-1, and the other end is connected to the fan blade 601; the rotating shaft 201 can penetrate the front end cover 101 of the first housing 100 and connect to the fan blade 601 to drive the fan blade 601 to rotate; a bearing is provided between the front end cover 101 and the rotating shaft 201.

[0060] Specifically, this utility model has a dual heat dissipation structure: First heat dissipation: the reciprocating linear motion of piston 4011-2 and cylinder liner 4012 driven by connecting rod 4011-1 forms a suction effect, which discharges the hot air in the first housing 100 through the end cover 303 of the second housing 300, the air storage plate assembly 500 and the cylinder head assembly 305; Second heat dissipation: the fan blade 601 provides forced air cooling to the outside of the motor assembly.

[0061] The same or similar parts between the various embodiments in this specification can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments.

[0062] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A heat dissipation structure for an electric motor, characterized in that: Including motor components and heat dissipation components; The motor assembly includes a first housing (100), a rotor assembly (200) rotatably connected within the first housing (100), and a second housing (300) connected to one end of the first housing (100). The heat dissipation assembly includes a first heat dissipation device (400) disposed in the second housing (300). The first heat dissipation device (400) includes a reciprocating motion mechanism (401) and a heat dissipation channel (402). When working, the reciprocating motion mechanism (401) forms a suction effect to discharge the hot air in the first housing (100) through the heat dissipation channel (402).

2. The heat dissipation structure of the motor according to claim 1, characterized in that: The reciprocating motion mechanism (401) includes a connecting rod assembly (4011) and a cylinder liner (4012); the connecting rod assembly (4011) includes a connecting rod (4011-1) connected to one end of the rotor assembly (200) extending out of the first housing (100), and a piston (4011-2) connected to one end of the connecting rod (4011-1) away from the rotor assembly (200), the piston (4011-2) being adapted to the cylinder liner (4012); when the rotor assembly (200) drives the connecting rod (4011-1) to rotate, the connecting rod (4011-1) can drive the piston (4011-2) to reciprocate linearly along the axial direction of the cylinder liner (4012).

3. The heat dissipation structure of the motor according to claim 2, characterized in that: The rotor assembly (200) includes a rotating shaft (201). One end of the connecting rod (4011-1) is fixedly connected to the rotating shaft (201) so that the connecting rod (4011-1) can rotate synchronously with the rotating shaft (201). The end of the connecting rod (4011-1) away from the rotating shaft (201) is provided with a connecting shaft (4011-1a) for connecting the piston (4011-2). The axis of the connecting shaft (4011-1a) is parallel to the axis of the rotating shaft (201) and is eccentrically spaced so that the rotational motion of the connecting rod (4011-1) can drive the reciprocating linear motion of the piston (4011-2).

4. The heat dissipation structure of the motor according to claim 3, characterized in that: The piston assembly (4011-2) includes a connecting rod portion (4011-2a) connected to the connecting shaft (4011-1a), a rod body portion (4011-2b) extending from the outer wall of the connecting rod portion (4011-2a), and a piston portion (4011-2c) connected to the end of the rod body portion (4011-2b) away from the connecting rod portion (4011-2a); and a bearing is provided between the connecting rod portion (4011-2a) and the connecting shaft (4011-1a), and a seal (4011-2d) is provided on the outer peripheral wall of the piston portion (4011-2c), the seal (4011-2d) being in close contact with the inner wall of the cylinder liner (4012).

5. The heat dissipation structure of the motor according to claim 1, characterized in that: The second housing (300) has a first vent (301) at one end connected to the first housing (100) to connect the space inside both. The second housing (300) is also provided with a second vent (302) that can connect to the outside. The reciprocating motion mechanism (401) is located in the space between the first vent (301) and the second vent (302) inside the second housing (300).

6. The heat dissipation structure of the motor according to claim 5, characterized in that: The second housing (300) is provided with an air storage plate assembly (500) located between the second vent (302) and the reciprocating motion mechanism (401), and the air storage plate assembly (500) is provided with a third vent (501).

7. The heat dissipation structure of the motor according to claim 6, characterized in that: The first housing (100) is provided with a front cover (101) at the end away from the second housing (300). The front cover (101) is provided with a fourth vent (1011) that can connect to the outside. Furthermore, the fourth vent (1011), the first vent (301), the second vent (302) and the third vent (501) can communicate with each other and form the heat dissipation channel (402).

8. The heat dissipation structure of the motor according to claim 1, characterized in that: The heat dissipation assembly further includes a second heat dissipation device (600), which is located at the other end of the rotor assembly (200) extending out of the first housing (100) and is used to dissipate heat from the motor assembly.

9. The heat dissipation structure of the motor according to claim 8, characterized in that: The second heat dissipation device (600) includes a fan blade (601), which is disposed at one end of the rotor assembly (200) away from the first heat dissipation device (400) and is capable of rotating synchronously with the rotor assembly (200).

10. The heat dissipation structure of the motor according to claim 1, characterized in that: The first housing (100) and the second housing (300) are arranged perpendicularly to each other.

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