Motor heat dissipation structure

Abstract

The utility model discloses a motor heat dissipation structure, which relates to the technical field of motor heat dissipation, and comprises a motor body and an output shaft in the motor body, a hollow pipe is arranged in the motor body, one end of the hollow pipe is connected with one end of the output shaft, and one end of the hollow pipe close to the output shaft is provided with a rotating blade. A plurality of exhaust holes are formed in the end, close to the rotating blades, of the hollow pipe, an air inducing cover is further arranged at the end, away from the output shaft, of the hollow pipe, an air inducing plate is further arranged at one end of the hollow pipe, and cooling fins are arranged on the periphery of the motor body. According to the utility model, the output shaft drives the hollow pipe and the rotating blades to rotate, so that the effect of heat dissipation in the motor body is achieved, the winding temperature can be reduced through heat dissipation, the service life of the motor is remarkably prolonged, and the efficiency of the motor is also improved, which means that less electric energy is consumed under the same output power.

Description

Technical Field

[0001] This utility model relates to the field of motor heat dissipation technology, specifically a motor heat dissipation structure. Background Technology

[0002] An electric motor, also known as a motor, works based on the principle of electromagnetic induction. When current passes through a conductor, a magnetic field is generated around the conductor. If a current-carrying conductor is placed in a magnetic field, it will be subjected to a force. The motor uses this force to drive the rotor to rotate, thereby outputting mechanical energy.

[0003] The patent document with authorization announcement number CN221886217U describes a motor heat dissipation structure in which the control device is installed on the motor stator and an air duct is set between the control device and the motor stator. When the fan assembly is working, it blows air into the air duct, so that the flowing air in the air duct carries away the heat generated by the motor stator and the control device, thereby improving the heat dissipation efficiency of the whole machine.

[0004] The above-mentioned technology has the problem of not being able to dissipate heat inside the motor. The insulation material of the motor winding (coil) is very sensitive to temperature. Increased temperature will lead to a decrease in insulation performance, accelerated aging, and may eventually lead to insulation breakdown, causing a short circuit, burning out the motor, and will also increase the resistance of the winding, resulting in increased current, reduced efficiency, and decreased output power. Summary of the Invention

[0005] The purpose of this invention is to provide a motor heat dissipation structure to solve the problem of the inability to dissipate heat inside the motor in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A motor heat dissipation structure includes: a motor body and an output shaft inside the motor body;

[0008] It also includes a heat dissipation assembly for dissipating heat inside the motor body. The heat dissipation assembly includes a hollow tube, which is rotatably connected inside the motor body. One end of the hollow tube is connected to one end of the output shaft. A rotating blade is provided on the end of the hollow tube near the output shaft. Several exhaust holes are opened on the end of the hollow tube near the rotating blade. A cooling component is provided on the hollow tube to cool the outer surface of the motor body.

[0009] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0010] In one alternative: the cooling component includes an air hood, which is disposed on the outer shell of the motor body. An air duct is also provided on one end of the hollow tube. Heat sinks are provided around the motor body. A limiting plate is also provided on one end of the hollow tube, and one side of the air duct is fixedly connected to the limiting plate.

[0011] In one alternative: the motor body has several air outlets on the side away from the hollow tube.

[0012] In one alternative: the air hood is provided with several air inlets.

[0013] In one alternative: the motor body has several through holes on one end near the limiting plate.

[0014] In one alternative: the gaps between the heat sinks are the same and form an air duct.

[0015] In one alternative: mounting brackets are provided at both ends of the bottom of the motor body.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This invention uses an output shaft to drive the hollow tube and rotating blades to rotate, thereby achieving heat dissipation inside the motor body. Heat dissipation can reduce the winding temperature, significantly extend the service life of the motor, and improve the efficiency of the motor, meaning that less electrical energy is consumed under the same output power. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a cross-sectional view of the structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the internal structure of this utility model.

[0021] The components are as follows: 100, motor body; 200, output shaft; 301, hollow tube; 302, rotating blade; 303, exhaust port; 401, air duct; 402, air duct plate; 403, heat sink; 500, air outlet; 600, limiting plate; 700, air inlet; 800, through hole; 900, mounting bracket. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0023] In one embodiment, such as Figures 1-3As shown, a motor heat dissipation structure includes: a motor body 100, an output shaft 200 inside the motor body 100, and a heat dissipation assembly. The heat dissipation assembly includes a hollow tube 301, which is rotatably connected inside the motor body 100. One end of the hollow tube 301 is connected to one end of the output shaft 200. A rotating blade 302 is provided on the end of the hollow tube 301 near the output shaft 200. A plurality of exhaust holes 303 are opened on the end of the hollow tube 301 near the rotating blade 302. A heat dissipation assembly for cooling the outer surface of the motor body 100 is provided on the hollow tube 301. The rotation of the output shaft 200 drives the hollow tube 301 to rotate, and then air passes through the hollow tube 301 to the exhaust holes 303 and is then discharged through the exhaust holes 303. The rotation of the hollow tube 301 also drives the rotating blade 302 to rotate, thereby blowing the air discharged from the exhaust holes 303 into the interior of the motor body 100.

[0024] In one embodiment, such as Figure 1 , Figure 2 and Figure 3 As shown, the cooling component includes an air hood 401, which is mounted on the outer shell of the motor body 100. An air hood 402 is also provided at one end of the hollow tube 301. Heat sinks 403 are provided around the motor body 100. A limiting plate 600 is also provided at one end of the hollow tube 301, and one side of the air hood 402 is fixedly connected to the limiting plate 600. The rotation of the hollow tube 301 drives the air hood 402 to rotate, thereby guiding air to the periphery of the air hood 401. The air hood 401 then guides the air to the heat sinks 403 on the surface of the motor body 100. The limiting plate 600 can block the air inside the motor body 100, forming two spaces: an internal space and an external space.

[0025] In one embodiment, such as Figure 1 As shown, the motor body 100 has several air outlets 500 on the side away from the hollow tube 301 to facilitate the air circulation inside the motor body 100.

[0026] In one embodiment, such as Figure 2 As shown, the air intake hood 401 is provided with a plurality of air inlets 700, through which air can flow into the interior of the air intake hood 401.

[0027] In one embodiment, such as Figure 2 and Figure 3 As shown, the motor body 100 has several through holes 800 on one end near the limiting plate 600, through which air can be guided into the motor body 100.

[0028] In one embodiment, such as Figure 1 , Figure 2 and Figure 3 As shown, the gaps between the heat sinks 403 are the same and form air ducts, which facilitates uniform heat dissipation around the motor body 100.

[0029] In one embodiment, such as Figure 1 , Figure 2 and Figure 3 As shown, mounting brackets 900 are provided at both ends of the bottom of the motor body 100 to facilitate the installation of the motor body 100.

[0030] The above embodiment discloses a motor heat dissipation structure, wherein the rotation of the output shaft 200 drives the hollow tube 301 to rotate, and then air reaches the exhaust port 303 through the hollow tube 301 and is then discharged through the exhaust port 303. Air can also be guided into the motor body 100 through the through hole 800. The rotation of the hollow tube 301 also drives the rotating blade 302 to rotate, thereby blowing the air discharged from the exhaust port 303 and the through hole 800 into the motor body 100, thereby achieving heat dissipation inside the motor body 100. Air also flows into the air intake shroud 401 through the air inlet 700. The rotation of the hollow tube 301 also drives the air intake plate 402 to rotate, thereby guiding the air inside the air intake shroud 401 to the periphery of the air intake shroud 401, and then guiding the air through the air intake shroud 401 to the heat sink 403 on the surface of the motor body 100, thereby dissipating heat from the outside of the motor body 100.

[0031] 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, comprising: The motor body (100) and the output shaft (200) inside the motor body (100); The invention is characterized by further including a heat dissipation component for dissipating heat inside the motor body (100). The heat dissipation component includes a hollow tube (301), which is rotatably connected inside the motor body (100). One end of the hollow tube (301) is connected to one end of the output shaft (200). A rotating blade (302) is provided on the end of the hollow tube (301) near the output shaft (200). A plurality of exhaust holes (303) are opened on the end of the hollow tube (301) near the rotating blade (302). A cooling component for cooling the outer surface of the motor body (100) is provided on the hollow tube (301).

2. The motor heat dissipation structure according to claim 1, characterized in that, The cooling component includes an air hood (401) which is mounted on the outer shell of the motor body (100). An air hood (402) is also provided on one end of the hollow tube (301). Heat sinks (403) are provided around the motor body (100). A limiting plate (600) is also provided on one end of the hollow tube (301), and one side of the air hood (402) is fixedly connected to the limiting plate (600).

3. The motor heat dissipation structure according to claim 1, characterized in that, The motor body (100) has several air outlets (500) on the side away from the hollow tube (301).

4. The motor heat dissipation structure according to claim 2, characterized in that, The air intake hood (401) is provided with several air inlets (700).

5. The motor heat dissipation structure according to claim 2, characterized in that, The motor body (100) has several through holes (800) on one end near the limiting plate (600).

6. The motor heat dissipation structure according to claim 2, characterized in that, The gaps between several of the heat sinks (403) are the same and form an air duct.

7. The motor heat dissipation structure according to claim 1, characterized in that, Mounting brackets (900) are provided at both ends of the bottom of the motor body (100).

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