Starter rotor convenient for heat dissipation
By installing an extension rod and impeller assembly on the starter rotor, the rotation of the aluminum alloy blades generates wind heat dissipation, the problem of insufficient heat dissipation of the starter is solved and the service life of the motor is extended.
Patent Information
- Application Number
- CN202422048673.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-08-22
AI Technical Summary
The heat dissipation performance of existing automobile starters is insufficient, resulting in heat accumulation, damage to internal components and shorten service life.
A starter rotor is designed to facilitate heat dissipation. By providing an extension rod and an impeller assembly on the rotating shaft, the impeller assembly is formed of an aluminum alloy, and the blades rotate with the rotating shaft to generate wind heat dissipation, increasing the heat dissipation area and efficiency.
It improves the heat dissipation efficiency of the starter and extends the service life of the motor.
Smart Images
Figure CN223181889U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of automotive starters, and particularly to a starter rotor facilitating heat dissipation. Background Art
[0002] An automotive starter includes an electric motor, a driving mechanism linked to the output end of the electric motor, and an electromagnetic switch controlling the electric motor. A rotor is disposed inside the electric motor. When the rotor rotates at a high speed, heat is generated. Most of the existing electric motors rely only on their outer shells for heat dissipation. However, the heat dissipation performance of the outer shell is limited. The heat accumulates inside the electric motor and cannot be dissipated from the electric motor in time, which may damage the internal components of the electric motor and shorten the service life of the electric motor. Content of the Utility Model
[0003] The technical problem to be solved by the utility model is directed at the deficiencies of the above-mentioned prior art.
[0004] To provide a starter rotor facilitating heat dissipation, which is convenient for heat dissipation.
[0005] To achieve the above object, the utility model provides the following technical solution: A starter rotor facilitating heat dissipation, including a rotating shaft and an armature disposed on the rotating shaft, characterized in that: One end of the rotating shaft is coaxially provided with an extension rod capable of extending outside the motor housing. The extension rod is detachably provided with an impeller assembly. The impeller assembly includes a mounting seat and blades arranged circumferentially and orderly on the mounting seat. Each of the blades is inclined in the same direction. The mounting seat is provided with a mounting groove adapted to the extension rod. One end of the extension rod relative to the rotating shaft is inserted into the mounting groove. Axially through the mounting seat and the part of the extension rod opposite thereto, positioning holes are relatively formed. Each of the positioning holes is threadedly fitted with a positioning screw.
[0006] The utility model with the above characteristics: The rotating shaft extends outside the motor housing and is provided with an extension rod. The extension rod is disposed outside the motor housing. The heat inside the motor can be transferred to the extension rod through the rotating shaft for heat dissipation. The mounting seat is connected to the extension rod, so that the heat can be transferred to the blades on the mounting seat. The blades increase the heat dissipation area, and the blades can rotate with the rotating shaft, further improving the heat dissipation efficiency.
[0007] A further setting of the utility model is that: The impeller assembly is integrally formed of aluminum alloy.
[0008] The utility model with the above characteristics: Using aluminum alloy material, it has light weight and good thermal conductivity.
[0009] A further setting of the utility model is that: The wind generated by the rotation of the impeller assembly blows in the direction of the rotating shaft.
[0010] A further setting of the present utility model is that the impeller assembly is covered with a housing. The housing is provided with an air outlet on one side of the rotating shaft, and an air inlet is provided on the side of the housing opposite to the air outlet.
[0011] A further setting of the present utility model is that the housing is provided with a connecting bracket for connecting with the motor housing.
[0012] The present utility model with the above characteristics: The wind generated by the impeller assembly blows towards the direction of the rotating shaft, that is, towards the motor housing, improving the heat dissipation efficiency of the motor housing.
[0013] The beneficial effect of the present utility model is that an extension rod is provided outside the motor housing where the rotating shaft extends. The extension rod is placed outside the motor housing. The heat inside the motor can be transferred to the extension rod through the rotating shaft for heat dissipation. The mounting seat is connected to the extension rod, enabling the heat to be transferred to the blades on the mounting seat. The blades increase the heat dissipation area, and the blades can rotate with the rotating shaft, further improving the heat dissipation efficiency.
[0014] The present utility model will be further described in detail below with reference to the drawings and embodiments. Description of the Drawings
[0015] Figure 1 It is a schematic structural diagram of an embodiment of the present utility model. Specific Embodiments
[0016] As Figure 1 shown, a starter rotor facilitating heat dissipation includes a rotating shaft 1 and an armature 2 arranged on the rotating shaft 1. One end of the rotating shaft 1 is coaxially provided with an extension rod 3 that can extend outside the motor housing. The extension rod 3 is detachably provided with an impeller assembly. The impeller assembly includes a mounting seat 4 and blades 5 arranged circumferentially and orderly around the mounting seat 4. Each of the blades 5 is inclined in the same direction. The mounting seat 4 is provided with a mounting groove 6 adapted to the extension rod 3. One end of the extension rod 3 relative to the rotating shaft 1 is inserted into the mounting groove 6. Axially through the mounting seat 4 and the part of the extension rod 3 opposite thereto, positioning holes 7 are provided. Each of the positioning holes 7 is threadedly engaged with a positioning screw 8. The impeller assembly is integrally formed by aluminum alloy. The impeller assembly rotates to generate wind blowing towards the direction of the rotating shaft 1. The impeller assembly is covered with a housing 9. The housing 9 is provided with an air outlet 10 on one side of the rotating shaft 1, and an air inlet 11 is provided on the side of the housing 9 opposite to the air outlet 10. One end face of the housing 9 provided with the air outlet 10 is connected to the extension rod 3 through a bearing 12. The housing 9 is provided with a connecting bracket 13 for connecting with the motor housing.
Claims
1. A starter motor rotor facilitating heat dissipation, comprising a rotating shaft and an armature disposed on the rotating shaft, characterized in that: One end of the rotating shaft is coaxially provided with an extension rod that can extend outside the motor housing. The extension rod is detachably provided with an impeller assembly. The impeller assembly includes a mounting seat and blades arranged in an orderly manner in the circumferential direction of the mounting seat. Each of the blades is inclined in the same direction. The mounting seat is provided with a mounting groove adapted to the extension rod. One end of the extension rod relative to the rotating shaft is inserted into the mounting groove. Positioning holes are relatively opened axially through the mounting seat and a part of the extension rod. Each of the positioning holes is threadedly fitted with a positioning screw.
2. The starter rotor according to claim 1, which is characterized in that: The impeller assembly is integrally formed of aluminum alloy.
3. The starter rotor for facilitating heat dissipation according to claim 1 or 2, characterized in that: The rotation of the impeller assembly generates wind blowing in the direction of the rotating shaft.
4. A starter rotor facilitating heat dissipation according to claim 1 or 2, characterized in that: The impeller assembly is covered with a cover body. The cover body is provided with an air outlet on one side of the rotating shaft, and an air inlet is provided on the side of the cover body opposite to the air outlet.
5. The starter rotor facilitating heat dissipation according to claim 4, characterized in that: The cover body is provided with a connecting bracket for connecting with the motor housing.