Heat dissipation type starting motor

Abstract

The utility model relates to a heat dissipation type starting motor, and relates to the field of motorcycles, the heat dissipation type starting motor comprises a motor body, a protection cover is arranged on the motor body, a partition plate is arranged on the protection cover, the partition plate and the protection cover are spliced to form a first heat dissipation cavity and a second heat dissipation cavity, a heat dissipation fan is arranged on the partition plate, the first heat dissipation cavity and the second heat dissipation cavity are communicated through the heat dissipation fan, and a heat dissipation pipe is arranged on the motor body. The heat dissipation pipe extends into the motor body, one end of the heat dissipation pipe penetrates out of the motor body, the other end of the heat dissipation pipe is communicated with the first heat dissipation cavity, the protection cover is provided with a plurality of air outlets, and the air outlets are communicated with the second heat dissipation cavity. After the starting motor is used to ignite the generator, the heat dissipation fan works to accelerate air circulation in the heat dissipation pipe, so that heat exchange between the heat dissipation pipe and the interior of the motor body is improved, the heat dissipation efficiency in the motor body is improved, and the service life of the starting motor is prolonged.

Description

Technical fields:

[0001] This utility model belongs to the technical field of motorcycles, and specifically refers to a heat-dissipating starter motor. Background technology:

[0002] The motorcycle starter motor is the core component of the electric starting system. Its function is to convert the electrical energy of the battery into mechanical energy, drive the crankshaft of the generator to rotate, and ignite the engine successfully.

[0003] In high-frequency starting scenarios such as food delivery, congested commuting, and off-road riding, motorcycles need to frequently restart the alternator, causing the starter motor temperature to rise sharply. Since the starter motor is usually mounted on the alternator, it not only needs to cope with the heat generated by its own operation but also suffers from the additional heat load conducted by the nearby alternator. However, most current motorcycle starter motors rely on natural cooling. With these two heat sources combined, heat accumulation easily accelerates the aging of internal components, thus shortening their lifespan, which needs improvement. Summary of the Invention:

[0004] The purpose of this invention is to provide a heat-dissipating starter motor to solve the technical problems mentioned in the background section.

[0005] This utility model is implemented as follows:

[0006] A heat-dissipating starter motor includes a motor body, a protective cover on the motor body, a partition on the protective cover, the partition and the protective cover being joined to form a heat dissipation cavity one and a heat dissipation cavity two, a cooling fan on the partition, the heat dissipation cavity one and the heat dissipation cavity two being connected through the cooling fan, a heat dissipation pipe on the motor body extending into the motor body, one end of the heat dissipation pipe exiting the motor body, and the other end of the heat dissipation pipe being connected to the heat dissipation cavity one, and the protective cover having a plurality of air outlets, the air outlets being connected to the heat dissipation cavity two.

[0007] By adopting the above technical solution, when the generator is ignited by the starter motor, the cooling fan works, which accelerates the air circulation in the cooling pipe, which helps to improve the heat exchange between the cooling pipe and the motor body, improves the heat dissipation efficiency inside the motor body, and helps to increase the service life of the starter motor.

[0008] Preferably, the heat dissipation pipe has a connection port, and the inner wall of the connection port is provided with a plurality of elastic pads. The plurality of elastic pads cover the through hole, and the plurality of elastic pads are spliced ​​together to form a cross groove. The cross groove opens when the plurality of elastic pads deform toward the direction of the heat dissipation pipe.

[0009] By adopting the above technical solution, when the cooling fan is working, the air velocity inside the cooling pipe increases and the air pressure decreases. Several elastic pads open the cross grooves under the action of air pressure, which facilitates the entry of the hot air inside the motor body into the cooling pipe, thereby increasing the heat dissipation effect.

[0010] Preferably, the air inlet of the cooling fan is connected to the first cooling cavity, the air outlet of the cooling fan is connected to the second cooling cavity, one end of the heat dissipation pipe is connected to the first cooling cavity, and the other end extends to the outer peripheral space of the motor body drive end.

[0011] By adopting the above technical solution, during the operation of the cooling fan, the airflow passes through one end of the heat dissipation pipe, sequentially through heat dissipation chamber one and heat dissipation chamber two, and flows out from the air outlet. This is beneficial for dissipating heat inside the electrode body while increasing the airflow velocity at the drive end of the motor body, which is also beneficial for dissipating heat from the gears installed at the drive end of the motor body.

[0012] Preferably, the protective cover is provided with a dustproof net, which covers the air outlet.

[0013] By adopting the above technical solution and setting up a dustproof net, it is beneficial to reduce the amount of dust in the air entering the drive motor through the air outlet, and during the operation of the cooling fan, it is beneficial to blow the dust accumulated on the dustproof net off the dustproof net.

[0014] Preferably, the heat dissipation pipe is arranged in a spiral shape.

[0015] By adopting the above technical solution and arranging the heat dissipation pipe in a spiral shape, it is beneficial to increase the heat dissipation area between the heat dissipation pipe and the motor body, thereby improving the heat dissipation efficiency.

[0016] Preferably, the motor body is provided with a heat insulation pad and a positioning bolt, which passes through the motor body and the heat insulation pad and is threadedly connected to the generator.

[0017] By adopting the above technical solution and setting a heat insulation pad between the motor body and the generator, it is beneficial to reduce the heat transfer from the generator to the motor body and reduce the temperature rise of the motor body.

[0018] Preferably, the heat insulation pad is a silicone rubber-based composite heat insulation pad, which is elastic.

[0019] By adopting the above technical solution, the silicone rubber-based composite heat insulation pad has both heat insulation function and a certain degree of elasticity. The use of silicone rubber-based composite heat insulation pads installed between the generator and the motor base helps to reduce the heat transfer from the generator to the motor body, and also helps to reduce the impact of generator vibration on the gears at the drive end of the motor body, thereby slowing down gear wear and extending the service life of the gears.

[0020] Preferably, part of the air outlet is located on the side of the protective cover near the heat insulation pad.

[0021] By adopting the above technical solution, it is beneficial to increase the heat dissipation efficiency of the generator near the starter motor, thereby reducing the heat transferred from the generator to the starter motor.

[0022] The outstanding advantages of this utility model compared to the prior art are:

[0023] 1. When the generator is ignited by the starter motor, the cooling fan works, which accelerates the air circulation in the cooling pipe, which helps to improve the heat exchange between the cooling pipe and the motor body, improves the heat dissipation efficiency inside the motor body, and helps to increase the service life of the starter motor.

[0024] 2. During the operation of the cooling fan, the airflow passes through one end of the cooling pipe, sequentially through the first cooling chamber and the second cooling chamber, and flows out from the air outlet. This is beneficial for cooling the inside of the electrode body while increasing the airflow speed at the drive end of the motor body, which is beneficial for cooling the gears installed at the drive end of the motor body.

[0025] 3. By setting up a dustproof net, this utility model helps to reduce the amount of dust in the air entering the drive motor through the air outlet, and during the operation of the cooling fan, it helps to blow the dust accumulated on the dustproof net off the dustproof net. Attached image description:

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a cross-sectional view of the protective cover of this utility model, mainly showing the internal structure of the protective cover;

[0028] Figure 3 This is a partial structural diagram of the present invention, mainly showing the structure of the heat dissipation pipe;

[0029] Figure 4 This is a partial structural diagram of the present invention, mainly showing the structure at the connection port.

[0030] Instruction manual drawing reference numerals: 1. Motor body; 11. Heat insulation pad; 111. Silicone rubber-based composite heat insulation pad; 12. Positioning bolt; 2. Protective cover; 21. Partition plate; 22. Heat dissipation cavity one; 23. Heat dissipation cavity two; 24. Air outlet; 25. Dustproof net; 3. Cooling fan; 4. Heat dissipation pipe; 41. Air inlet; 42. Air outlet; 43. Spiral part; 431. Connection port; 432. Elastic pad; 433. Cross groove. Detailed implementation method:

[0031] The present invention will be further described below with reference to specific embodiments. See also: Figure 1 —4:

[0032] This application discloses a heat-dissipating starter motor. See also: A heat-dissipating starter motor. Figure 1 It includes a motor body 1, the drive end of the motor body 1 is used to connect to a gear set, and the motor body 1 starts the generator through the cooperation between the motor body 1 and the gear set.

[0033] See Figure 1 and Figure 2 A protective cover 2 is fixed on the motor body 1. The protective cover 2 is located on the side away from the drive end of the motor body 1. A partition 21 is fixed on the protective cover 2. The partition 21 is located inside the protective cover 2. The side wall of the partition 21 is attached to the inner wall of the protective cover 2. The protective cover 2 and the partition 21 are spliced ​​to form a heat dissipation cavity 1 22 and a heat dissipation cavity 23. The distribution direction of the heat dissipation cavity 1 22 and the heat dissipation cavity 23 is parallel to the distribution direction of the motor body 1 and the protective cover 2. The heat dissipation cavity 1 22 is located on the side of the heat dissipation cavity 23 closer to the motor body 1. A cooling fan 3 is fixed on the partition 21. The air inlet end of the cooling fan 3 faces the heat dissipation cavity 1 22 and is connected to the heat dissipation cavity 1 22. The air outlet end of the cooling fan 3 faces the heat dissipation cavity 23 and is connected to the heat dissipation cavity 23. The heat dissipation cavity 1 22 and the heat dissipation cavity 23 are connected through the cooling fan 3.

[0034] See Figure 1 and Figure 2 The protective cover 2 has several air outlets 24, which are spaced apart and connected to the second heat dissipation cavity 23. Some air outlets 24 are located on the side of the second heat dissipation cavity 23 away from the motor body 1, while others are distributed around the second heat dissipation cavity 23. Several dustproof nets 25 are fixed on the protective cover 2. The position and number of dustproof nets 25 correspond one-to-one with the position and number of air outlets 24. The dustproof nets 25 are used to reduce dust entering the protective cover 2, which helps to reduce dust accumulation on the cooling fan 3.

[0035] See Figure 2 and Figure 3A heat dissipation pipe 4 is fixed on the motor body 1. The heat dissipation pipe 4 includes an air inlet 41, an air outlet 42, and a spiral part 43. The air inlet 41, the air outlet 42, and the spiral part 43 are integrally formed. The distribution direction of the air inlet 41 and the air outlet 42 is parallel to the distribution direction of the protective cover 2 and the motor body 1. The spiral part 43 is located between the air inlet 41 and the air outlet 42. The air inlet 41 and the air outlet 42 are connected through the spiral part 43. The air inlet 41 is located on the side of the spiral part 43 away from the heat dissipation cavity. The air inlet 41 extends out of the motor body 1. The spiral part 43 is located inside the motor body 1. The spiral part 43 is arranged around the outer periphery of the drive end of the motor body 1. The air outlet 42 is located on the side of the spiral part 43 close to the heat dissipation cavity 22. The air outlet 42 is connected to the heat dissipation cavity 22, so that the heat dissipation cavity 22 is connected to the outer periphery of the drive end of the motor body 1.

[0036] During actual installation, the cooling fan 3 is electrically connected to the generator.

[0037] In actual use, when the starter motor successfully ignites the generator, the generator drives the engine to start and simultaneously drives the cooling fan 3 to start. This causes airflow to enter from the air inlet 41, pass through the spiral part 43, the air inlet 41 and the first cooling chamber 22, and then enter the second cooling chamber 23. The airflow then flows out through the air outlet 24, which helps to improve the air circulation in the outer peripheral space of the motor body 1 and helps to cool the gears installed at the drive end of the motor body 1.

[0038] See Figure 3 and Figure 4 The spiral portion 43 has a connecting port 431 with a circular cross-section. The connecting port 431 connects the interior space of the spiral portion 43 to the interior space of the motor body 1. Several elastic pads 432 are fixed on the spiral portion 43. The elastic pads 432 are circumferentially distributed around the center of the connecting port 431. In this embodiment, there are four elastic pads 432. Adjacent elastic pads 432 are in contact with each other, and the contact ports 431 are covered by the contact pads 432. The contact pads 432 are conical, with the cone heads facing the interior of the spiral portion 43. The elastic pads 432 are spliced ​​to form a cross groove 433. The cross groove 433 opens when the elastic pads 432 deform towards the interior of the spiral portion 43.

[0039] After the generator is powered on, it drives the cooling fan 3 to work, which increases the airflow velocity and decreases the air pressure inside the cooling pipe 4. This makes the air pressure inside the cooling pipe 4 lower than the air pressure inside the motor body 1, causing the cross groove 433 to open under the action of air pressure. This facilitates the airflow inside the motor body 1 into the cooling pipe 4. Since the motor adopts a semi-sealed structure, it is conducive to the entry of external gas into the motor body 1, which is conducive to the air circulation inside the motor body 1, thereby improving the heat dissipation efficiency.

[0040] See Figure 1 and Figure 2 A heat insulation pad 11 is fixed on the motor body 1. The heat insulation pad 11 is a silicone rubber-based composite heat insulation pad 111. The motor body 1 is mounted against the generator housing through the silicone rubber-based composite heat insulation pad 111. The silicone rubber-based composite heat insulation pad 111 has heat insulation properties and elasticity, which helps to reduce the transmission of heat and vibration from the generator to the motor body 1. A positioning bolt 12 is installed on the motor body 1. The axis of the positioning bolt 12 is parallel to the distribution direction of the motor body 1 and the silicone rubber-based composite heat insulation pad 111. The positioning bolt 12 passes through the motor body 1 and the silicone rubber-based composite heat insulation pad 111 and is threaded to the generator. The motor body 1 is fixed to the generator through the positioning bolt 12. A portion of the air outlet 24 is axially arranged around the heat dissipation cavity 23 and is located on the side of the protective cover 2 near the silicone rubber-based composite heat insulation pad 111.

[0041] The implementation principle of a heat-dissipating starter motor in this application embodiment is as follows: when the generator is ignited by the starter motor, the cooling fan 3 works to accelerate the air circulation in the heat dissipation pipe 4, which is conducive to improving the heat exchange between the heat dissipation pipe 4 and the motor body 1, and is conducive to the heat dissipation efficiency inside the motor body 1, thereby reducing the rate of temperature rise of the starter motor and increasing the service life of the starter motor.

[0042] The above embodiments are only one of the preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes made in accordance with the shape, structure and principle of this utility model should be covered within the protection scope of this utility model.

Claims

1. A heat dissipating starter motor characterized by: The motor body (1) is provided with a protective cover (2), the protective cover (2) is provided with a partition (21), the partition (21) and the protective cover (2) are spliced to form a heat dissipation cavity one (22) and a heat dissipation cavity two (23), the partition (21) is provided with a heat dissipation fan (3), the heat dissipation cavity one (22) and the heat dissipation cavity two (23) are communicated through the heat dissipation fan (3), the motor body (1) is provided with a heat dissipation pipe (4), the heat dissipation pipe (4) extends into the motor body (1), one end of the heat dissipation pipe (4) penetrates out of the motor body (1), the other end of the heat dissipation pipe (4) is communicated with the heat dissipation cavity one (22), the protective cover (2) is provided with a plurality of air outlets (24), the air outlet (24) is communicated with the heat dissipation cavity two (23).

2. A heat dissipating starter motor according to claim 1, characterized in that: The heat dissipation pipe (4) is provided with a connecting port (431), the inner wall of the connecting port (431) is provided with a plurality of elastic pads (432), a plurality of the elastic pads (432) cover the connecting port (431), a plurality of the elastic pads (432) are spliced to form a cross groove (433), the cross groove (433) is opened when a plurality of the elastic pads (432) are deformed towards the heat dissipation pipe (4).

3. A heat sink start motor as set forth in claim 2 wherein: The air inlet end of the heat dissipation fan (3) is communicated with the heat dissipation cavity one (22), the air outlet end of the heat dissipation fan (3) is communicated with the heat dissipation cavity two (23), one end of the heat dissipation pipe (4) is communicated with the heat dissipation cavity one (22), and the other end extends to the outer peripheral space of the driving end of the motor body (1).

4. A heat sink start motor as set forth in claim 3 wherein: The protective cover (2) is provided with a dust screen (25), and the dust screen (25) covers the air outlet (24).

5. A heat sink start motor as set forth in claim 1 wherein: The heat dissipation pipe (4) is spirally arranged.

6. A heat sink start motor as set forth in claim 1 wherein: The motor body (1) is provided with a heat insulation pad (11), and the motor body (1) is provided with a positioning bolt (12), the positioning bolt (12) penetrates the motor body (1) and the heat insulation pad (11) and is threadedly connected with a generator.

7. A heat sink start motor as set forth in claim 6 wherein: The heat insulation pad (11) is a silicon rubber-based composite heat insulation pad (111) and has elasticity.

8. A heat sink start motor as set forth in claim 6 wherein: Part of the air outlet (24) is located on the side of the protective cover (2) close to the heat insulation pad (11).

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