A starting motor with a shock-absorbing structure

Abstract

The present invention relates to the technical field of motor motors, and in particular to a starting motor with a shock-absorbing structure. Its technical solution includes: a transmission mechanism and a control mechanism, and the transmission mechanism cooperates with the control mechanism to achieve power transmission and control; a dust-proof mechanism is arranged on the transmission mechanism, and the dust-proof mechanism dust-proofs and dissipates heat from the transmission mechanism; a shock-absorbing mechanism is arranged on the transmission mechanism, and the shock-absorbing mechanism shocks the transmission mechanism that has stopped operating. The present invention has a system that synergistically combines shock-absorbing locking at the moment of starting and active heat dissipation, and can effectively solve the problems of insulation aging of the armature winding caused by traditional passive heat dissipation and the failure of pinion meshing caused by the shock-absorbing structure under starting impact.

Description

Technical Field

[0001] The present invention relates to the technical field of motor motors, and specifically to a starting motor with a shock-absorbing structure. Background Art

[0002] As a core component of an engine, the reliability of a starting motor directly affects the starting performance and service life of a vehicle. In the prior art, there are significant defects in the heat dissipation system of the starting motor: the hundreds of amperes of instantaneous current at the moment of starting causes the temperature of the armature winding and the brush assembly to rise sharply, and the traditional heat dissipation method relying on natural convection of the housing is easily affected by dust and oil blocking the heat dissipation holes. Especially in dusty working conditions, the passive heat dissipation mechanism cannot dissipate heat in time, accelerating the aging of the internal insulating material and the wear of the brush commutator, seriously threatening the performance and life of the motor.

[0003] At the same time, traditional shock-absorbing structures such as rubber cushions and spring dampers cause new technical contradictions when suppressing vibration: when the armature shaft rotates at high speed driven by electromagnetic force, the flexible characteristics of the shock-absorbing device lead to a deviation in the initial meshing position between the pinion and the flywheel ring gear. Specifically, the dynamic displacement interference causes uneven tooth surface contact stress, the timing mismatch causes the meshing phase to be misaligned with the motor starting timing, and the flexible support weakens the transmission stiffness and causes high-frequency micro-amplitude swing. These problems lead to meshing failure phenomena such as tooth breakage and tooth skipping, reducing the starting success rate and exacerbating tooth surface wear.

[0004] Therefore, a starting motor with a shock-absorbing structure is proposed to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a starting motor with a shock-absorbing structure, which has a system that coordinates shock-absorbing locking and active heat dissipation at the moment of starting, and can effectively solve the problems of armature winding insulation aging caused by traditional passive heat dissipation and pinion meshing failure caused by the shock-absorbing structure under starting impact.

[0006] To achieve the above purpose, the present invention provides the following technical solution: a starting motor with a shock-absorbing structure, including a transmission mechanism and a control mechanism, the transmission mechanism and the control mechanism cooperate to achieve power transmission and control; a dust-proof mechanism is arranged on the transmission mechanism, and the dust-proof mechanism dust-proofs and dissipates heat from the transmission mechanism; a shock-absorbing mechanism is arranged on the transmission mechanism, and the shock-absorbing mechanism shock-absorbs the transmission mechanism when it stops operating.

[0007] Preferably, the shock-absorbing mechanism includes a first mounting seat, a spring assembly, a limiting ring and a second mounting seat;

[0008] The spring assembly is arranged between the first mounting seat and the second mounting seat, and the limiting ring is installed on the spring assembly to limit the compression stroke of the spring assembly;

[0009] The shock absorption mechanism is connected to the engine and the transmission mechanism through the first mounting seat and the second mounting seat.

[0010] When the above technical solution is adopted, the cooperation between the spring assembly and the limit ring realizes the dual functions of dynamic shock absorption and rigid locking, and the mechanical limit of the compression stroke of the spring assembly by the limit ring realizes the gradient absorption of the starting impact energy.

[0011] Specifically, the spring assembly absorbs vibration energy through elastic deformation when the motor stops running, and the limit ring provides rigid support when the spring assembly is compressed to the critical value, avoiding structural failure caused by excessive compression.

[0012] Preferably, the transmission mechanism includes a first housing, a stator body, a rotor body, a one-way clutch, a gear body, and a sealing baffle;

[0013] An air inlet hole and a first reserved groove are provided on the first housing, and a sealing baffle is arranged on the first housing. The sealing baffle is provided with an air outlet hole;

[0014] One end of the rotor body is used to install the one-way clutch and the gear body, and the other end of the rotor body is provided with a spline.

[0015] When the above technical solution is adopted, the combination of the sealing baffle and the air outlet hole realizes the integrated design of dust prevention and directional heat dissipation, and a controllable air flow channel is formed through the cooperation of the air inlet hole of the first housing and the sealing baffle.

[0016] Specifically, the sealing baffle closes the air inlet hole during normal operation to prevent dust from entering; when heat dissipation is required, the baffle is opened through the control mechanism, and the air flow enters the inner cavity of the first housing through the air inlet hole and then is discharged through the air outlet hole to realize heat dissipation.

[0017] Preferably, the rotor body drives the gear body to rotate unidirectionally through the one-way clutch. A movable sleeve is provided on the one-way clutch, and a limit frame is installed on the movable sleeve. The limit frame passes through the first reserved groove.

[0018] When the above technical solution is adopted, the linkage between the one-way clutch and the limit frame realizes the precise control of the transmission direction and the displacement limit, and a mechanical stop device is formed through the structure that the limit frame passes through the first reserved groove.

[0019] Specifically, the one-way clutch only allows the gear body to rotate unidirectionally. The limit frame can limit the elastic deformation of the shock absorption mechanism when the motor starts, so as to ensure the stable meshing of the gear body and the flywheel ring gear. At the same time, a sealing gasket for sealing the first reserved groove is provided on the limit frame inside the first housing.

[0020] Preferably, a through hole for the limit frame to pass through is provided on the spring assembly, and the limit ring is installed below the through hole.

[0021] When the above technical solution is adopted, the layout of the through hole and the limit ring of the spring assembly realizes the effective limitation of the elastic deformation of the shock absorbing mechanism during the motor starting stage.

[0022] Specifically, the limit frame passes through the through hole of the spring assembly. At the moment of motor starting, the limit frame can limit the elastic deformation of the shock absorbing mechanism, avoiding the initial meshing position deviation between the pinion and the flywheel ring gear due to the flexible characteristics of the shock absorbing mechanism, thereby ensuring the stable meshing of the gear body and the flywheel ring gear.

[0023] Preferably, the control mechanism comprises a second housing, an electromagnet assembly, a movable iron core, a sleeve and an inner rod;

[0024] The electromagnet assembly drives the sleeve to move linearly along the inner rod through the movable iron core, and the sleeve adjusts the position of the one-way clutch through the lever, one end of the lever is connected to the sleeve, and the other end of the lever is connected to the movable sleeve;

[0025] A resetting elastic member is arranged in the second shell, and the resetting elastic member is used for driving the sleeve to reset.

[0026] When the above technical solution is adopted, the combination of the electromagnet assembly and the resetting elastic member realizes fast-response transmission control, and forms a precise displacement adjustment system through the linkage mechanism of the sleeve and the lever.

[0027] Specifically, the electromagnet assembly drives the sleeve to move and adjusts the position of the one-way clutch through the lever to achieve the engagement and disengagement of the gear body; the reset elastic member quickly resets the sleeve when the power is off to ensure the reliability of the system.

[0028] Preferably, the dustproof mechanism comprises a dustproof cover, a heat dissipation component and a dustproof baffle; the heat dissipation component is used for heat dissipation of the transmission mechanism;

[0029] The dust cover is sleeved on the outside of the first shell and seals the air inlet hole, and a mounting hole is provided on the dust cover;

[0030] The heat dissipation assembly is arranged on the dust cover, and the heat dissipation assembly includes a connecting ring, a heat dissipation impeller and a sealing ring;

[0031] The connecting ring is rotatably mounted in the mounting hole and connected to the heat dissipation impeller;

[0032] The heat dissipation impeller is provided with a keyway matching the spline, the heat dissipation impeller is fixedly connected to the sealing ring, the spline is triangular cone-shaped, and when the heat dissipation impeller moves axially, the keyway and the spline can be meshed;

[0033] The sealing ring is used to seal the air outlet hole.

[0034] When the above technical solution is adopted, the integration of the heat dissipation impeller and the sealing ring realizes the collaborative optimization of active heat dissipation and dust prevention, and forms a synchronous drive structure through the cooperation of the keyway and the spline.

[0035] Specifically, the heat dissipation impeller rotates with the rotor body to generate air flow, and the air flow direction is guided through the cooperation of the sealing ring and the air outlet hole, effectively taking away heat; at the same time, the dust-proof cover and the dust-proof baffle prevent dust from entering and protect the internal structure.

[0036] Preferably, a connecting rod is provided on the dust-proof baffle, and the connecting rod passes through the second reserved groove and is connected to the sleeve.

[0037] The dust-proof baffle is used to seal the air inlet hole.

[0038] When the above technical solution is adopted, the linkage between the dust-proof baffle and the sleeve realizes the dust-proof strategy adaptable to the working conditions, and forms a mechanical synchronization mechanism through the cooperation of the connecting rod and the second reserved groove.

[0039] Specifically, when the sleeve moves, the dust-proof baffle moves synchronously, opening the air inlet hole for heat dissipation during the operation of the motor and closing the air inlet hole for dust prevention when stopped, dynamically adjusting according to the working conditions.

[0040] Preferably, the blades of the heat dissipation impeller are spiral, and a diversion channel is formed between the heat dissipation impeller and the air outlet holes of the sealing baffle.

[0041] When the above technical solution is adopted, the design of the spiral blades and the diversion channel realizes a significant improvement in heat dissipation efficiency, and forms a bionic hydrodynamic structure through the optimization of the blade shape.

[0042] Specifically, the spiral blades of the heat dissipation impeller generate high-speed air flow when rotating, and jointly act with the diversion channel formed by the air outlet holes of the sealing baffle to enhance the heat exchange efficiency.

[0043] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0044] 1. By setting up a dust-proof mechanism, the present invention realizes the dual functions of active heat dissipation and dust prevention for the transmission mechanism. The dust-proof mechanism actively guides the air flow circulation through the internal structure during operation, replacing the traditional passive heat dissipation method, effectively reducing the temperature of the armature winding and delaying the aging of the insulating material.

[0045] 2. By setting up the linkage between the shock-absorbing mechanism and the transmission mechanism, the vibration displacement of the transmission mechanism is suppressed at the moment of startup. The shock-absorbing mechanism provides rigid support under the startup impact, avoiding the initial meshing deviation between the pinion and the flywheel ring gear caused by the flexible deformation of the traditional shock-absorbing structure, and reducing the risks of tooth breakage and tooth skipping.

[0046] 3. Through the cooperation of the dust-proof mechanism and the transmission mechanism, the present invention realizes the dynamic sealing of the air inlet hole. When the transmission mechanism operates, the dust-proof mechanism automatically opens the heat dissipation channel; when it stops, it seals the dust, solves the problem that the traditional heat dissipation holes are easily blocked by dust, and extends the service life of the motor.

[0047] 4. Through the precise cooperation of the transmission mechanism and the control mechanism, the present invention realizes the efficient coordination of power transmission and control. At the same time, when the transmission mechanism stops, the shock-absorbing mechanism absorbs vibration energy through elastic buffering to ensure static stability, taking into account both dynamic rigidity and static buffering requirements.

[0048] In summary, through the system integration of the transmission mechanism, the control mechanism, the dust-proof mechanism and the shock-absorbing mechanism, the present invention breaks through the technical contradiction between the heat dissipation and shock absorption of the traditional starter motor, and significantly improves the reliability and service life of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 is the front view structural schematic diagram of the present invention;

[0050] Figure 2 is the first perspective cross-sectional view of the present invention;

[0051] Figure 3 is the structural schematic diagram of another perspective of the present invention;

[0052] Figure 4 is of the present invention Figure 3 partial enlarged structural schematic diagram;

[0053] Figure 5 is the second perspective cross-sectional view of the present invention;

[0054] Figure 6 is the third perspective cross-sectional view of the present invention;

[0055] Figure 7 is of the present invention Figure 6 partial enlarged structural schematic diagram;

[0056] Figure 8 is the connection structural schematic diagram of the dust-proof cover and the dust-proof baffle of the present invention;

[0057] Figure 9 is the connection structural schematic diagram of the heat dissipation components of the present invention.

[0058] In the figure: 1. Transmission mechanism; 11. First housing; 111. Air inlet hole; 112. First reserved groove; 12. Stator body; 13. Rotor body; 131. Spline; 14. One-way clutch; 141. Movable sleeve; 15. Gear body; 16. Sealing baffle; 161. Air outlet hole; 2. Dust-proof mechanism; 21. Dust-proof cover; 211. Mounting hole; 22. Heat dissipation component; 221. Connecting ring; 222. Heat dissipation impeller; 2221. Keyway; 223. Sealing ring; 23. Dust-proof baffle; 231. Connecting rod; 3. Control mechanism; 31. Second housing; 311. Second reserved groove; 32. Electromagnet assembly; 33. Movable iron core; 34. Sleeve; 35. Inner rod; 36. Reset elastic member; 4. Shock-absorbing mechanism; 41. First mounting seat; 42. Spring assembly; 43. Limit ring; 44. Second mounting seat; 5. Pusher rod; 6. Limit bracket. Detailed implementation mode

[0059] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0060] Embodiment 1: As Figures 1 to 9 shown, an embodiment provided by the present invention: A starting motor with a shock-absorbing structure includes a transmission mechanism 1 and a control mechanism 3. The transmission mechanism 1 cooperates with the control mechanism 3 to achieve power transmission and control; a dust-proof mechanism 2 is arranged on the transmission mechanism 1, and the dust-proof mechanism 2 dust-proofs and dissipates heat from the transmission mechanism 1; a shock-absorbing mechanism 4 is arranged on the transmission mechanism 1, and the shock-absorbing mechanism 4 dampens the shock of the transmission mechanism 1 that has stopped operating.

[0061] Specifically, by setting the dust-proof mechanism 2, the dual functions of active heat dissipation and dust-proofing of the transmission mechanism 1 are realized. When the dust-proof mechanism 2 is operating, it actively guides the air flow circulation through internal structures such as heat dissipation channels, replacing the traditional passive heat dissipation method, effectively reducing the temperature of the armature winding and delaying the aging of the insulating material.

[0062] By setting the linkage between the shock-absorbing mechanism 4 and the transmission mechanism 1, the vibration displacement of the transmission mechanism 1 is suppressed at the moment of startup. The shock-absorbing mechanism 4 provides a rigid support under the starting impact, avoiding the initial meshing deviation between the pinion and the flywheel ring gear caused by the flexible deformation of the traditional shock-absorbing structure, and reducing the risks of gear beating and gear skipping.

[0063] Through the cooperation of the dust-proof mechanism 2 and the transmission mechanism 1, the dynamic sealing of the air inlet hole is achieved. When the transmission mechanism 1 operates, the dust-proof mechanism 2 automatically opens the heat dissipation channel; when it stops, it seals the dust, solving the problem that the traditional heat dissipation holes are easily blocked by dust and extending the service life of the motor.

[0064] Through the precise cooperation of the transmission mechanism 1 and the control mechanism 3, the efficient coordination of power transmission and control is achieved. At the same time, when the transmission mechanism 1 stops, the shock-absorbing mechanism 4 absorbs vibration energy through elastic buffering to ensure static stability, taking into account both dynamic rigidity and static buffering requirements.

[0065] In summary, through the system integration of the transmission mechanism 1, the control mechanism 3, the dust-proof mechanism 2 and the shock-absorbing mechanism 4, the technical contradiction between the heat dissipation and shock absorption of the traditional starter motor is broken through, and the reliability and service life of the motor are significantly improved.

[0066] Embodiment 2: In order to achieve the gradient absorption and rigid locking of the starting impact energy, as Figure 2 and Figure 4 shown, in this embodiment, the shock-absorbing mechanism 4 includes a first mounting seat 41, a spring assembly 42, a limit ring 43 and a second mounting seat 44, which is connected to the engine through the first mounting seat 41, and the second mounting seat 44 is connected to the first housing 11 of the transmission mechanism 1. The spring assembly 42 is arranged between the first mounting seat 41 and the second mounting seat 44, and the limit ring 43 is installed below the through hole of the spring assembly 42.

[0067] The rotor body 13 of the transmission mechanism 1 drives the gear body 15 to rotate unidirectionally through a one-way clutch 14. A limit frame 6 is installed on the movable sleeve 141 of the one-way clutch 14. The limit frame 6 passes through the first reserved groove 112 of the first housing 11 and is in clearance fit with the through hole of the spring assembly 42. When the sleeve 34 of the control mechanism 3 drives the movable sleeve 141 to axially displace through the lever 5, the limit frame 6 abuts against the limit ring 43, restricting the spring assembly 42 at the moment of starting, making the shock-absorbing mechanism 4 present a rigid state to ensure the precise meshing of the gear body 15 and the flywheel ring gear; when stopping, the spring assembly 42 elastically deforms to absorb vibration energy, and the limit ring 43 provides rigid support during high-frequency vibration.

[0068] The spring assembly 42, the limit ring 43 and the limit frame 6 are linked. At the start, rigid limiting is used to avoid meshing deviation caused by flexible deformation, and at the stop, elastic deformation is still used to absorb vibration.

[0069] The mechanical stop device of the limit frame 6 and the first reserved groove 112 also limits the displacement of the movable sleeve 141, preventing the axial movement of the one-way clutch 14 and extending the service life of the transmission components.

[0070] The gasket inside the first housing 11 seals the first reserved groove 112 through the limit frame 6, thereby preventing dust from entering.

[0071] Embodiment 3: To achieve coordinated dust prevention and heat dissipation that adapts to working conditions, as Figure 5 , Figure 8 and Figure 9 shown, in this embodiment, the control mechanism 3 includes a second housing 31, an electromagnet assembly 32, a movable iron core 33, a sleeve 34, and an inner rod 35. A reset elastic member 36 is disposed inside the second housing 31 for driving the sleeve 34 to reset.

[0072] The dust-proof cover 21 of the dust-proof mechanism 2 is sleeved outside the first housing 11. The dust-proof baffle 23 is connected to the sleeve 34 of the control mechanism 3 through a connecting rod 231, and the connecting rod 231 passes through the second reserved slot 311 of the second housing 31. The heat dissipation impeller 222 of the heat dissipation assembly 22 is rigidly connected to the spline 131 of the rotor body 13 through a keyway 2221, and generates a spiral air flow as the rotor body 13 rotates. A diversion channel is formed through the air outlet 161 of the sealing ring 223 and the sealing baffle 16. At the same time, the heat dissipation impeller 222 is connected to a connecting ring 221 disposed in the mounting hole 211, and the connecting ring 221 rotates on the dust-proof cover 21, thereby improving the stability of the heat dissipation impeller 222 during rotation.

[0073] When the electromagnet assembly 32 is energized, the movable iron core 33 drives the sleeve 34 to axially move along the inner rod 35, and adjusts the position of the movable sleeve 141 of the one-way clutch 14 through a lever 5, so that the gear body 15 meshes with the flywheel ring gear. At the same time, the sleeve 34 drives the dust-proof baffle 23 to open the air inlet hole 111 of the first housing 11 through the connecting rod 231. At this time, the heat dissipation impeller 222 rotates with the rotor body 13 to generate a high-speed air flow, and the heat is discharged through the air outlet 161.

[0074] When the electromagnet assembly 32 is de-energized, the reset elastic member 36 drives the sleeve 34 to reset, the lever 5 drives the movable sleeve 141 to retract, and the gear body 15 disengages. At the same time, the dust-proof baffle 23 synchronously closes the air inlet hole 111 to prevent dust from entering.

[0075] The combination of the electromagnet assembly 32 and the reset elastic member 36 improves the response time of the sleeve 34, thereby ensuring the quick meshing and separation of the gear body 15 and improving the starting efficiency.

[0076] The linkage mechanism of the sleeve 34 and the lever 5 achieves the axial displacement accuracy of the movable sleeve 141, avoids the concentration of tooth surface contact stress, and reduces wear.

[0077] The dust-proof baffle 23 is mechanically linked with the sleeve 34, opens for heat dissipation during operation, and closes for dust prevention during shutdown, taking into account both heat dissipation and protection requirements.

[0078] The precise fit of the sealing ring 223 and the air outlet 161 forms a diversion channel, preventing oil stains from entering the inside of the first housing 11 and protecting the stator body 12 and the rotor body 13.

[0079] Embodiment 4: In order to achieve the timing synchronization of transmission control and heat dissipation channel, as Figure 3 , Figure 4 ,and Figure 6 , Figure 7 and Figure 9 As shown, in this embodiment, one end of the lever 5 of the control mechanism 3 is connected to the sleeve 34, and the other end is connected to the movable sleeve 141 of the one-way clutch 14. When the electromagnet assembly 32 drives the sleeve 34 to move, the lever 5 drives the movable sleeve 141 to axially displace, and the sealing baffle 16 is pushed open through the limit frame 6, so that the sealing ring 223 is separated from the air outlet 161 to form a guide channel. At the same time, the dust baffle 23 is linked with the sleeve 34 through the connecting rod 231 to synchronously open the air inlet 111.

[0080] The heat dissipation impeller 222 rotates with the rotor body 13 to generate a spiral airflow, which is discharged through the air outlet 161, thereby achieving synchronous control of the meshing of the gear body 15 and the opening of the heat dissipation.

[0081] The synchronization mechanism ensures that the heat dissipation channel is opened at the moment of startup, thereby reducing the temperature rise rate of the winding and effectively protecting the insulation of the armature winding.

[0082] The linkage between the lever 5 and the movable sleeve 141 ensures the axial displacement accuracy of the one-way clutch 14, improves the uniformity of the contact stress distribution on the tooth surface, and reduces wear.

[0083] The dynamic opening of the air inlet 111 prevents the heat dissipation holes from being exposed when not in operation, thereby reducing the amount of dust entering and extending the service life of the motor.

[0084] When the present invention is used:

[0085] When the driver turns the key or presses the start button, the electromagnet assembly 32 of the control mechanism 3 is energized, generating an electromagnetic attraction force to drive the movable iron core 33 to move, thereby pulling the sleeve 34 to move axially along the inner rod 35 .

[0086] The sleeve 34 drives the movable sleeve 141 on the one-way clutch 14 to axially displace through the lever 5, so that the gear body 15 is meshed with the flywheel gear ring.

[0087] At this time, the limit frame 6 moves with the movable sleeve 141, passes through the through hole on the spring assembly 42 of the shock absorbing mechanism 4, and then contacts the limit ring 43, limiting the operation of the spring assembly 42 at the moment of starting, making the shock absorbing mechanism 4 rigid, ensuring that the gear body 15 is accurately meshed with the flywheel gear ring, and avoiding the risk of tooth hitting due to flexible deformation.

[0088] At the same time, when the sleeve 34 moves, the dust baffle 23 is driven by the connecting rod 231 to open the air inlet 111 of the first shell 11 .

[0089] Since the spline 131 is triangular pyramid-shaped, when the heat dissipation impeller 222 moves axially, the keyway 2221 can be engaged with the spline 131, so that the rotor body 13 drives the heat dissipation impeller 222 to rotate. The spiral blades generate high-speed air flow, and the heat is discharged through the diversion channel formed by the sealing ring 223 and the air outlet 161, reducing the temperature of the armature winding.

[0090] After the electromagnet assembly 32 is powered off, the reset elastic member 36 drives the sleeve 34 to reset, the lever 5 drives the movable sleeve 141 to retract, and the gear body 15 is separated from the flywheel ring gear.

[0091] The spring assembly 42 restores its elastic deformation and absorbs the vibration energy of the engine when the transmission mechanism 1 stops.

[0092] The dust-proof baffle 23 resets with the sleeve 34 and reseals the air inlet 111 to prevent dust from invading.

[0093] The above shows and describes the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0094] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A starting motor with a shock-absorbing structure, comprising a transmission mechanism (1) and a control mechanism (3), characterized in that: The transmission mechanism (1) cooperates with the control mechanism (3) to achieve power transmission and control; a dust-proof mechanism (2) is provided on the transmission mechanism (1), and the dust-proof mechanism (2) dust-proofs and dissipates heat from the transmission mechanism (1); a shock-absorbing mechanism (4) is provided on the transmission mechanism (1), and the shock-absorbing mechanism (4) shocks the transmission mechanism (1) that has stopped operating; The dust-proof mechanism (2) includes a dust-proof cover (21), a heat dissipation component (22), and a dust-proof baffle (23); the heat dissipation component (22) is used for dissipating heat from the transmission mechanism (1); The dust-proof cover (21) is sleeved outside the first housing (11), and the dust-proof cover (21) is provided with a mounting hole (211); The heat dissipation component (22) is arranged on the dust-proof cover (21), and the heat dissipation component (22) includes a connecting ring (221), a heat dissipation impeller (222), and a sealing ring (223); The connecting ring (221) is rotatably installed in the mounting hole (211) and is connected to the heat dissipation impeller (222); The heat dissipation impeller (222) is provided with a keyway (2221) matching the spline (131), and the heat dissipation impeller (222) is fixedly connected to the sealing ring (223); The sealing ring (223) is used for sealing the air outlet hole (161).

2. The starting motor with a shock-absorbing structure according to claim 1, characterized in that, The shock-absorbing mechanism (4) includes a first mounting seat (41), a spring assembly (42), a limit ring (43), and a second mounting seat (44); The spring assembly (42) is arranged between the first mounting seat (41) and the second mounting seat (44), and the limit ring (43) is installed on the spring assembly (42) to limit the compression stroke of the spring assembly (42); The shock-absorbing mechanism (4) is connected to the engine and the transmission mechanism (1) through the first mounting seat (41) and the second mounting seat (44).

3. The starting motor with a shock-absorbing structure according to claim 1, characterized in that, The transmission mechanism (1) includes a first housing (11), a stator body (12), a rotor body (13), a one-way clutch (14), a gear body (15), and a sealing baffle (16); The first housing (11) is provided with an air inlet hole (111) and a first reserved groove (112), and a sealing baffle (16) is arranged on the first housing (11), and the sealing baffle (16) is provided with an air outlet hole (161); One end of the rotor body (13) is used for installing the one-way clutch (14) and the gear body (15), and the other end of the rotor body (13) is provided with a spline (131).

4. A starting motor with a shock-absorbing structure according to claim 3, characterized in that, The rotor body (13) drives the gear body (15) to rotate unidirectionally through the one-way clutch (14), the one-way clutch (14) is provided with a movable sleeve (141), and a limit frame (6) is installed on the movable sleeve (141), and the limit frame (6) passes through the first reserved groove (112).

5. The starting motor with a shock-absorbing structure according to claim 2, characterized in that, A through hole for the limit frame (6) to pass through is formed in the spring assembly (42), and the limit ring (43) is installed below the through hole.

6. The starting motor with a shock-absorbing structure according to claim 1, characterized in that, The control mechanism (3) includes a second housing (31), an electromagnet assembly (32), a movable iron core (33), a sleeve (34), and an inner rod (35); The electromagnet assembly (32) drives the sleeve (34) to move linearly along the inner rod (35) via the movable iron core (33); the sleeve (34) adjusts the position of the one-way clutch (14) via the lever (5); one end of the lever (5) is connected to the sleeve (34); and the other end of the lever (5) is connected to the movable sleeve (141); A resetting elastic member (36) is disposed in the second housing (31), and the resetting elastic member (36) is used to drive the sleeve (34) to reset.

7. A starting motor with a shock-absorbing structure according to claim 1, characterized in that, The dust baffle (23) is provided with a connecting rod (231), and the connecting rod (231) passes through the second reserved groove (311) and is connected to the sleeve (34); The dustproof baffle (23) is used to seal the air inlet hole (111).

8. A starting motor with a shock-absorbing structure according to claim 1, characterized in that, The blades of the heat dissipation impeller (222) are spiral-shaped, and the heat dissipation impeller (222) and the air outlet hole (161) of the sealing baffle (16) form a guide channel.

Images