A starting motor with vibration and noise reduction function
By using a sliding bracket and heat dissipation and noise reduction components on the starter motor, the vibration and noise problems of the starter motor during engine startup are solved, achieving the effect of vibration reduction and noise reduction, and improving the service life and working stability of the motor.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG HAIWEI ELECTRICAL APPLIANCES CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-06-02
Smart Images
Figure CN224319168U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of starter motor technology, specifically to a starter motor with vibration reduction and noise reduction functions. Background Technology
[0002] As we all know, starting an engine requires external force, and the starter motor plays this role. Generally speaking, the starter motor uses three components to achieve the entire starting process: a DC electric motor that draws current from the battery and causes the starter motor's drive gear to move mechanically; a starter motor that is usually fixed to the outside of the engine housing; and a flywheel fixed to the starter motor's shaft that meshes with the starter flywheel on the engine. Because the flywheel on the starter motor has a smaller diameter than the starter flywheel, the starter motor requires a larger current to drive the starter flywheel, resulting in a loud current noise. Simultaneously, the engine vibrates after starting, causing the starter motor to vibrate as well, which can easily damage the starter motor. Therefore, a starter motor with vibration reduction and noise reduction functions is needed.
[0003] Traditional vibration reduction methods involve installing multiple sets of springs outside the starter motor to reduce its vibration amplitude. However, spring-based vibration reduction has a hysteresis effect. Since the vibration frequency and amplitude of the starter motor are different from those of the engine, it is easier for the flywheels of the starter motor to collide with each other. Utility Model Content
[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.
[0005] To address the technical problems mentioned in the background section above, some embodiments of this application provide a starter motor with vibration reduction and noise reduction functions, including an engine, a starter flywheel fixedly mounted on the engine, a base, multiple electric slide rails fixedly mounted on the base, and a starting mechanism slidably mounted on the electric slide rails; the starting mechanism includes a bracket slidably mounted on the electric slide rails, a heat dissipation and noise reduction component fixedly mounted on the bracket, a first mounting groove fixedly mounted on the bracket, a housing mounted on the first mounting groove, an end cover mounted on the housing, a shaft rotatably mounted through the end cover, a second flywheel fixedly mounted on the shaft and meshing with the starter flywheel, a first connecting component on the housing and the end cover, a second connecting component on the bracket and the end cover, and a sealing component on the end cover.
[0006] Specifically, the heat dissipation and noise reduction component includes multiple heat dissipation fins fixed on the bracket, multiple heat dissipation through holes fixed on the bracket, and a sound-absorbing layer fixed on the bracket and in contact with the housing.
[0007] Specifically, the first connecting component includes a first through hole symmetrically fixed on the housing, a first threaded hole symmetrically fixed on the end cap, a second mounting groove symmetrically fixed on the housing, and a first threaded rod rotatably passing through the first through hole and the second mounting groove.
[0008] Specifically, the second connecting component includes a second through hole symmetrically fixed on the bracket, a second threaded hole symmetrically fixed on the end cap, a third mounting groove symmetrically fixed on the bracket, and a second threaded rod rotatably passing through the second through hole and the third mounting groove.
[0009] Specifically, the sealing assembly includes a fourth mounting groove fixed on the end cap, a rubber ring fixed on the fourth mounting groove, a skeleton fixed on the rubber ring, a first convex ring fixed on the rubber ring, a second convex ring fixed on the rubber ring, and a spring sleeved on the rubber ring.
[0010] Specifically, the rotor is fixedly mounted on the shaft; the stator is fixedly mounted on the housing.
[0011] The beneficial effects of this utility model are:
[0012] (1) The existing connection method is to fix the starter motor to the engine housing. Even if the flywheel is disconnected, the vibration of the engine will be directly transmitted to the starter motor through the engine housing. This invention fixes the starter motor to the bracket and allows the bracket to move on the base. After the starter motor assists the engine to start, the bracket drives the starter motor to move, so that the starter motor is disconnected from the engine. The base is not fixed to the engine housing, so that the vibration of the engine during operation will not be directly transmitted to the starter motor, thus achieving the effect of vibration reduction of the starter motor.
[0013] (2) It is equipped with heat dissipation and noise reduction components; heat dissipation fins can increase the heat dissipation surface area and promote heat dissipation; heat dissipation holes facilitate air circulation and assist in heat dissipation; the sound absorption layer is made of sound-absorbing material, which can absorb some of the noise generated when the motor is working. Attached Figure Description
[0014] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.
[0015] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.
[0016] In the attached diagram:
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a top view of the present invention;
[0019] Figure 3 This is a rear view of the present invention;
[0020] Figure 4 for Figure 3 A line section of AA;
[0021] Figure 5 for Figure 4 A magnified view of a section at point B in the middle;
[0022] Figure 6 for Figure 3 A line section view of CC. Detailed Implementation
[0023] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.
[0024] It should also be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.
[0025] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.
[0026] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".
[0027] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.
[0028] Reference Figures 1-6As shown, the present invention discloses a starter motor with vibration reduction and noise reduction functions, comprising an engine 1, a starter flywheel 2 fixedly mounted on the engine, a base 3, multiple electric slide rails 4 fixedly mounted on the base, and a starting mechanism 5 slidably mounted on the electric slide rails; the starting mechanism includes a bracket 51 slidably mounted on the electric slide rails, a heat dissipation and noise reduction component 52 fixedly mounted on the bracket, a first mounting groove 53 fixedly mounted on the bracket, a housing 54 mounted on the first mounting groove, an end cover 55 mounted on the housing, a shaft 56 rotatably mounted through the end cover, a second flywheel 57 fixedly mounted on the shaft and meshing with the starter flywheel, a first connecting component 58 on the housing and end cover, a second connecting component 59 on the bracket and end cover, and a sealing component 50 on the end cover; the engine and starter flywheel are existing technologies; the engine is fixedly mounted in the front engine compartment and connected to the vehicle body; the base is fixed in the front engine compartment by bolts, i.e., there is no connection between the base and the engine; the electric slide rails can control the bracket to slide a short distance on the base; the bracket is used to mount the starter motor; the housing and end cover are for starting... The starter motor housing, including the housing and end cap, is connected by a first connecting assembly. The shaft is rotatable, driving a second flywheel to rotate as well. The second connecting assembly connects the housing, end cap, and bracket, fixing the starter motor to the bracket and allowing it to slide along an electric slide rail. A heat dissipation and noise reduction assembly assists in cooling the starter motor and absorbs some of the noise generated during operation. A sealing assembly seals the gap between the end cap and the shaft. By moving the starter motor, it disconnects from the engine after assisting in starting the engine. Existing connection methods fix the starter motor to the engine housing, meaning that even if the flywheel is disconnected, engine vibration is directly transmitted to the starter motor through the engine housing. This invention fixes the starter motor to a bracket, allowing the bracket to move on a base. After assisting in starting the engine, the bracket moves the starter motor, disconnecting it from the engine. Since the base is not fixed to the engine housing, engine vibration is not directly transmitted to the starter motor, achieving vibration reduction.
[0029] Specifically, the heat dissipation and noise reduction component includes multiple heat dissipation fins 521 fixed on the bracket, multiple heat dissipation through holes 522 fixed on the bracket, and a sound-absorbing layer 523 fixed on the bracket and in contact with the housing; the heat dissipation fins can increase the heat dissipation surface area and promote heat dissipation; the heat dissipation through holes facilitate air circulation and assist in heat dissipation; the sound-absorbing layer is made of sound-absorbing material, which is existing technology and can absorb some of the noise generated when the motor is working.
[0030] Specifically, the first connecting assembly includes a first through hole 581 symmetrically fixed on the housing, a first threaded hole 582 symmetrically fixed on the end cap, a second mounting groove 583 symmetrically fixed on the housing, and a first threaded rod 584 rotatably passing through the first through hole and the second mounting groove; the first threaded rod and the first threaded hole engage, the first threaded rod is connected to the first through hole, the first threaded rod is rotated, the end cap is fixed on the first threaded rod, and thus the end cap and the housing are connected together.
[0031] Specifically, the second connecting assembly includes a second through hole 591 symmetrically fixed on the bracket, a second threaded hole 592 symmetrically fixed on the end cap, a third mounting groove 593 symmetrically fixed on the bracket, and a second threaded rod 594 rotatably passing through the second through hole and the third mounting groove; the second threaded rod and the second threaded hole engage, the second threaded rod is connected to the second through hole, the second threaded rod is rotated, the starter motor is fixed on the second threaded rod, and thus the starter motor and the bracket are connected together.
[0032] Specifically, the sealing assembly includes a fourth mounting groove 501 fixed on the end cover, a rubber ring 502 mounted on the fourth mounting groove, a skeleton 503 fixed on the rubber ring, a first convex ring 504 fixed on the rubber ring, a second convex ring 505 fixed on the rubber ring, and a spring 506 sleeved on the rubber ring; the first convex ring does not contact the shaft and has a small gap; the second convex ring contacts the shaft, and the contact surface is lubricated; the first convex ring can prevent large particles from entering the starter motor; the skeleton is used to position the shape of the rubber ring and prevent large deformation; the spring can keep the second convex ring in contact with the shaft.
[0033] Specifically, the rotor 561 is fixedly mounted on the shaft; the stator 562 is fixedly mounted on the housing; the rotor and stator are components of the starter motor and are existing technologies.
[0034] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in the embodiments of this disclosure is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.
Claims
1. A starter motor with vibration reduction and noise reduction function, characterized in that: The device includes an engine (1), a starter flywheel (2) fixed on the engine, a base (3), multiple electric slide rails (4) fixed on the base, and a starting mechanism (5) slidably mounted on the electric slide rails. The starting mechanism includes a bracket (51) slidably mounted on the electric slide rails, a heat dissipation and noise reduction assembly (52) fixed on the bracket, a first mounting groove (53) fixed on the bracket, a housing (54) mounted on the first mounting groove, an end cap (55) mounted on the housing, a shaft (56) rotatably mounted through the end cap, a second flywheel (57) fixed on the shaft and meshing with the starter flywheel, a first connecting assembly (58) on the housing and the end cap, a second connecting assembly (59) on the bracket and the end cap, and a sealing assembly (50) on the end cap.
2. A starter motor with vibration reduction and noise reduction function according to claim 1, characterized in that: The heat dissipation and noise reduction assembly includes multiple heat dissipation fins (521) fixed on the bracket, multiple heat dissipation through holes (522) fixed on the bracket, and a sound-absorbing layer (523) fixed on the bracket and in contact with the housing.
3. A starter motor with vibration reduction and noise reduction function according to claim 1, characterized in that: The first connecting assembly includes a first through hole (581) symmetrically fixed on the housing, a first threaded hole (582) symmetrically fixed on the end cap, a second mounting groove (583) symmetrically fixed on the housing, and a first threaded rod (584) rotatably passing through the first through hole and the second mounting groove.
4. A starter motor with vibration reduction and noise reduction function according to claim 1, characterized in that: The second connecting assembly includes a second through hole (591) symmetrically fixed on the bracket, a second threaded hole (592) symmetrically fixed on the end cap, a third mounting groove (593) symmetrically fixed on the bracket, and a second threaded rod (594) rotatably passing through the second through hole and the third mounting groove.
5. A starter motor with vibration reduction and noise reduction function according to claim 1, characterized in that: The sealing assembly includes a fourth mounting groove (501) fixed on the end cap, a rubber ring (502) on the fourth mounting groove, a skeleton (503) fixed on the rubber ring, a first protruding ring (504) fixed on the rubber ring, a second protruding ring (505) fixed on the rubber ring, and a spring (506) sleeved on the rubber ring.
6. A starter motor with vibration reduction and noise reduction function according to claim 1, characterized in that: The rotor (561) is fixedly mounted on the shaft; the stator (562) is fixedly mounted on the housing.