Starter

Abstract

The utility model discloses a starter. The starter comprises a shell, an electromagnetic switch mechanism, an electric mechanism, a clutch mechanism and at least one airflow blowing mechanism. A first installation channel, a second installation channel and at least one vent hole are formed in the shell, and the first installation channel is communicated with the outside through the vent hole. The electromagnetic switch mechanism comprises a guiding and moving part, a moving part, a triggering part and a reset part, and the moving part is inserted into the first installation channel in a sealed mode in the mode that the moving part can move in the axial direction of the first installation channel when the guiding and moving part is powered on and powered off. The airflow blowing mechanism comprises a driving rotating component and a fan, the fan is installed in the first installation channel, and the driving rotating component is arranged between the moving component and the fan in the mode that the driving rotating component can drive the fan to rotate when the moving component moves in the axial direction of the first installation channel.

Description

Technical Field

[0001] This utility model relates to the field of starter technology, and in particular to a starter. Background Technology

[0002] Before an engine can run on its own power, it must be rotated by an external force. The process by which an engine transitions from a stationary state to a self-sustaining state with the help of an external force is called engine starting. The starter motor converts the electrical energy from the battery into mechanical energy, which drives the engine flywheel to rotate, thus starting the engine.

[0003] Existing starter housings are equipped with vents. When the starter is started, airflow can enter and exit the housing through the vents to balance the pressure difference between the inside and outside of the housing. However, the airflow will bring moisture, dust and other substances from the external environment into the housing. The components inside the housing are easily damaged by moisture and dust, which will shorten the service life of the starter. Utility Model Content

[0004] One advantage of this invention is that it provides a starter motor that can reduce moisture, dust and other impurities inside the housing, thereby extending the service life of the starter motor.

[0005] To achieve at least one of the above advantages of this utility model, this utility model provides a starter motor, said starter motor comprising:

[0006] A housing, the housing forming a first mounting channel, a second mounting channel, and at least one vent communicating with the first mounting channel, the first mounting channel communicating with the outside through the vent.

[0007] An electromagnetic switch mechanism includes a guiding component, a moving component, a triggering component, and a resetting component. The guiding component is installed in a first mounting channel and is configured to be energized. A portion of the moving component extends out of the first mounting channel and is sealed within the first mounting channel such that it can move axially along the first mounting channel when the guiding component is energized. The triggering component includes a moving trigger and a stationary trigger. The moving trigger is installed at one end of the moving component, and the stationary trigger is installed on the inner wall of the first mounting channel. The moving trigger and the stationary trigger are disposed opposite to each other. When the moving trigger moves axially along the first mounting channel with the moving component, the moving trigger approaches or moves away from the stationary trigger. The resetting component is connected to the moving component, and when the moving component approaches the stationary trigger along the axial direction of the first mounting channel, the resetting component undergoes elastic deformation and tends to drive the moving component to reset.

[0008] An electric mechanism is installed in the second mounting channel;

[0009] A clutch mechanism includes a one-way clutch and a shift fork, wherein the one-way clutch is movably sleeved on one end of the electric mechanism along the axial direction of the electric mechanism, the shift fork is pivotally connected to the housing, and the two ends of the shift fork are respectively connected to the end of the moving component away from the moving trigger and the one-way clutch.

[0010] At least one airflow blowing mechanism, the airflow blowing mechanism including a rotating component and a fan, the fan being mounted in the first mounting channel, the rotating component being disposed between the moving component and the fan in such a way that it can drive the fan when the moving component moves axially along the first mounting channel.

[0011] According to one embodiment of the present invention, the starter includes a drive gear, which is mounted on one end of the one-way clutch.

[0012] According to one embodiment of the present invention, the guiding component includes a fixed iron core, a movable iron core, and a coil. The fixed iron core is fixedly installed in the first mounting channel, and the movable iron core is installed in the moving component. The coil is configured to be energized and de-energized and is wound around the outer periphery of the fixed iron core and the movable iron core. When the coil is energized, the movable iron core is driven by magnetic force to move the moving component closer to the stationary trigger. When the coil is de-energized, the moving component moves away from the stationary trigger under the elastic restoring force of the reset component.

[0013] According to one embodiment of the present invention, the outer shell forms two vent holes, one of which is for air intake and the other is for air exhaust.

[0014] According to one embodiment of the present invention, the outer shell has at least one connecting portion, the connecting portion forming the vent hole, and the connecting portion protruding from the surface of the outer shell.

[0015] According to one embodiment of the present invention, the rotating component includes a rotating rack and a rotating gear. The rotating rack is mounted on the outer periphery of the moving component and extends axially along the first mounting channel. The rotating gear is rotatably mounted on the first mounting channel, and the rotating rack and the rotating gear are engaged. The fan is coaxially connected to the rotating gear.

[0016] According to one embodiment of the present invention, the rotating component includes a rotating rack and a rotating gear. The rotating rack is mounted on the outer periphery of the moving component and extends axially along the first mounting channel. The rotating gear is rotatably mounted on the first mounting channel, and the rotating rack meshes with the rotating gear. The rotating component further includes a bevel gear set, which includes a first bevel gear and a second bevel gear. The first bevel gear is coaxially connected to the rotating gear, and the second bevel gear meshes with the first bevel gear. The rotating gear is coaxially connected to the second bevel gear.

[0017] According to one embodiment of the present invention, the starter is provided with multiple sets of airflow blowing mechanisms, and multiple fans can operate simultaneously when the moving part moves.

[0018] According to one embodiment of the present invention, the starter motor further includes at least one sealing element, which is installed on the inner wall of the first mounting channel formed by the housing.

[0019] According to one embodiment of the present invention, the electric mechanism forms at least one first threaded spline, the one-way clutch forms at least one second threaded spline, the one-way clutch is sleeved on the electric mechanism, and the second threaded spline is slidably inserted into the first threaded spline. Attached Figure Description

[0020] Figure 1 A schematic diagram of the structure of a starter according to the present invention is shown.

[0021] Figure 2 A cross-sectional view of a starter motor according to the present invention is shown in one state.

[0022] Figure 3 It shows Figure 2 Enlarged diagram of part A in the middle.

[0023] Figure 4 A partial structural schematic diagram of a starter motor according to the present invention is shown.

[0024] Figure 5 It shows Figure 4 Enlarged schematic diagram of part B in the middle. Detailed Implementation

[0025] The following description is intended to disclose this application and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of this application defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of this application.

[0026] Those skilled in the art should understand that, in the disclosure of this application, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this application.

[0027] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0028] refer to Figures 1 to 5 A starter motor according to a preferred embodiment of the present invention will be described in detail below, the starter motor comprising a housing 10 and an electromagnetic switch mechanism 20.

[0029] The outer casing 10 forms a first mounting channel 1001, a second mounting channel 1002, and at least one vent 1003 communicating with the first mounting channel 1001. The first mounting channel 1001 communicates with the outside through the vent 1003, allowing airflow to enter and exit the first mounting channel 1001 through the vent 1003.

[0030] The electromagnetic switch mechanism 20 is installed in the first mounting channel 1001. The electromagnetic switch mechanism 20 includes a guiding component 21, a moving component 22, a triggering component 23, and a resetting component 24.

[0031] The guiding member 21 is installed in the first mounting channel 1001, and the guiding member 21 is configured to be energized. A portion of the moving member 22 extends out of the first mounting channel 1001, and the moving member 22 is sealed within the first mounting channel 1001 in a manner that allows it to move axially along the first mounting channel 1001 when the guiding member 21 is energized. It is understood that the sealed connection between the moving member 22 and the housing 10 prevents external dust, moisture, and other impurities from entering the first mounting channel 1001, thereby protecting the parts installed within the first mounting channel 1001.

[0032] The triggering component 23 includes a movable trigger 231 and a stationary trigger 232. The movable trigger 231 is mounted on one end of the moving component 22, and the stationary trigger 232 is mounted on the inner wall of the first mounting channel 1001, with the movable trigger 231 and the stationary trigger 232 positioned opposite each other. When the movable trigger 231 moves axially along the first mounting channel 1001 with the moving component 22, the movable trigger 231 moves closer to or further away from the stationary trigger 232. When the movable trigger 231 and the stationary trigger 232 are in contact, a large current flows through the starter motor.

[0033] The reset member 24 is connected to the moving member 22, and when the moving member 22 approaches the static trigger member 232 along the axial direction of the first mounting channel 1001, the reset member 24 undergoes elastic deformation and tends to drive the moving member 22 to reset.

[0034] In one example, the reset member 24 is implemented as a spring.

[0035] It is worth mentioning that the starter motor further includes at least one seal 30. The seal 30 is installed on the inner wall of the first mounting channel 1001 formed by the housing 10, such that the moving part 22 is sealed and inserted into the first mounting channel 1001.

[0036] In one example, the seal 30 is implemented as a rubber ring.

[0037] Specifically, the guiding component 21 includes a fixed iron core 211, a movable iron core 212, and a coil 213. The fixed iron core 211 is fixedly installed in the first mounting channel 1001, and the movable iron core 212 is installed in the moving component 22. The coil 213 is configured to be energized and de-energized and is wound around the outer periphery of the fixed iron core 211 and the movable iron core 212. Thus, when the coil 213 is energized, the movable iron core 212 is magnetically driven, causing the moving component 22 to move closer to the stationary trigger member 232. When the coil 213 is de-energized, the moving component 22 moves away from the stationary trigger member 232 under the elastic restoring force of the reset member 24, thereby resetting.

[0038] Furthermore, the starter motor also includes an electric mechanism 40, a clutch mechanism 50, and a drive gear 60.

[0039] The electric mechanism 40 is mounted in the second mounting channel 1002. The clutch mechanism 50 includes a one-way clutch 51 and a shift fork 52. The drive gear 60 is mounted on one end of the one-way clutch 51, and the one-way clutch 51 is movably sleeved on one end of the electric mechanism 40 along the axial direction of the electric mechanism 40. The shift fork 52 is pivotally connected to the housing 10, and both ends of the shift fork 52 are respectively connected to one end of the moving member 22 away from the moving trigger 231 and the one-way clutch 51.

[0040] Specifically, when the guiding component 21 is energized, the moving component 22 moves closer to the stationary trigger 232 along the axial direction of the first mounting channel 1001. At the same time, the guiding component 21 pulls the shift fork 52 to rotate, causing the shift fork 52 to push the one-way clutch 51 to drive the drive gear 60 out of the second mounting channel 1002 to engage with the engine. Until the moving trigger 231 and the stationary trigger 232 come into contact, a large current is applied to the starter motor, causing the electric mechanism 40 to rotate around the axial direction of the second mounting channel 1002. Then, the electric mechanism 40 drives the drive gear 60 to rotate through the one-way clutch 51 to start the engine. In this way, when the guiding component 21 is de-energized, the moving component 22 moves along the axial direction of the first mounting channel 1001 away from the static trigger 232 under the elastic restoring force of the reset component 24, causing the moving trigger 231 and the static trigger 232 to disconnect. The guiding component 21 pushes the shift fork 52 to reset, the electric mechanism 40 stops rotating, and the shift fork 52 pulls the electric mechanism 40 to drive the drive gear 60 back into the second mounting channel 1002 and loses engagement with the engine.

[0041] It is worth mentioning that the electric mechanism 40 forms at least one first threaded spline 41, and the one-way clutch 51 forms at least one second threaded spline 511. The one-way clutch 51 is sleeved on the electric mechanism 40, and the second threaded spline 511 is slidably inserted into the first threaded spline 41.

[0042] Furthermore, the starter motor also includes at least one airflow blowing mechanism 70.

[0043] The airflow blowing mechanism 70 includes a rotating component 71 and a fan 72. The fan 72 is mounted in the first mounting channel 1001, and the rotating component 71 is disposed between the moving component 22 and the fan 72 such that it can drive the fan 72 to rotate when the moving component 22 moves axially along the first mounting channel 1001. The moving component 22 drives the fan 72 to rotate through the rotating component 71, thereby reducing moisture, dust, and other impurities in the first mounting channel 1001.

[0044] Specifically, when the moving part 22 moves axially along the first mounting channel 1001 and causes air to enter the first mounting channel 1001 through the vent 1003, the moving part 22 drives the fan 72 to rotate through the rotating part 71, and the airflow generated by the fan 72 is directed toward the vent 1003, so that dust, water vapor and other impurities that enter the first mounting channel 1001 from the vent 1003 are discharged from the first mounting channel 1001 by the airflow blown by the airflow blowing mechanism 70, thereby protecting the parts installed in the housing 10.

[0045] It is worth mentioning that during the start-up process, some electrical energy is converted into heat energy, causing the temperature inside the first mounting channel 1001 to rise. When the moving part 22 resets, it drives the fan 72 to rotate via the rotating part 71, so that the rotating fan 72 can cool the first mounting channel 1001, thereby protecting the parts installed in the first mounting channel 1001 and extending the service life of the starter.

[0046] Preferably, the outer casing 10 forms two vent holes 1003, one of which is for air intake while the other is for air exhaust. In this way, the two airflows can enter and exit through the two openings respectively, and there is no interference between the air intake and exhaust, making the air intake and exhaust smoother.

[0047] Preferably, the outer casing 10 has at least one connecting portion 11, which forms the vent hole 1003, and the connecting portion 11 protrudes from the surface of the outer casing 10 so that the connecting portion 11 can be connected to a vent pipe.

[0048] Specifically, the rotating component 71 includes a rotating rack 711 and a rotating gear 712. The rotating rack 711 is mounted on the outer periphery of the moving component 22 and extends axially along the first mounting channel 1001. The rotating gear 712 is rotatably mounted in the first mounting channel 1001, and the rotating rack 711 meshes with the rotating gear 712.

[0049] In one embodiment, the fan 72 is coaxially connected to the rotating gear 712. Thus, when the moving component 22 drives the rotating rack 711 to move axially along the first mounting channel 1001, the rotating rack 711 drives the rotating gear 712 to rotate, causing the rotating gear 712 to drive the fan 72 to rotate within the first mounting channel 1001.

[0050] As a deformable alternative, the rotating component 71 further includes a bevel gear set 713. The bevel gear set 713 includes a first bevel gear 7131 and a second bevel gear 7132. The first bevel gear 7131 is coaxially connected to the rotating gear 712, and the second bevel gear 7132 meshes with the first bevel gear 7131. The rotating gear 712 is coaxially connected to the second bevel gear 7132. Thus, when the moving component 22 drives the rotating rack 711 to move axially along the first mounting channel 1001, the rotating rack 711 drives the rotating gear 712 to rotate, causing the rotating gear 712 to drive the first bevel gear 7131 to rotate, and subsequently, the second bevel gear 7132 drives the fan 72 to rotate within the first mounting channel 1001.

[0051] Preferably, the starter is provided with multiple sets of airflow blowing mechanisms 70, so that when the moving part 22 moves, multiple fans 72 can operate simultaneously to increase the airflow through the vent 1003.

[0052] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been shown and explained in the embodiments, and any modifications or variations may be made to the implementation of the present invention without departing from the stated principles.

Claims

1. A starter motor, characterized in that, The starter motor includes: A housing, the housing forming a first mounting channel, a second mounting channel, and at least one vent communicating with the first mounting channel, the first mounting channel communicating with the outside through the vent. An electromagnetic switch mechanism includes a guiding component, a moving component, a triggering component, and a resetting component. The guiding component is installed in a first mounting channel and is configured to be energized. A portion of the moving component extends out of the first mounting channel and is sealed within the first mounting channel such that it can move axially along the first mounting channel when the guiding component is energized. The triggering component includes a moving trigger and a stationary trigger. The moving trigger is installed at one end of the moving component, and the stationary trigger is installed on the inner wall of the first mounting channel. The moving trigger and the stationary trigger are disposed opposite to each other. When the moving trigger moves axially along the first mounting channel with the moving component, the moving trigger approaches or moves away from the stationary trigger. The resetting component is connected to the moving component, and when the moving component approaches the stationary trigger along the axial direction of the first mounting channel, the resetting component undergoes elastic deformation and tends to drive the moving component to reset. An electric mechanism is installed in the second mounting channel; A clutch mechanism, the clutch mechanism including a one-way clutch and a shift fork, wherein the one-way clutch is movably sleeved on one end of the electric mechanism along the axial direction of the electric mechanism, the shift fork is pivotally connected to the housing, and the two ends of the shift fork are respectively connected to the end of the moving component away from the moving trigger and the one-way clutch. At least one airflow blowing mechanism, the airflow blowing mechanism including a rotating component and a fan, the fan being mounted in the first mounting channel, the rotating component being disposed between the moving component and the fan in such a way that it can drive the fan when the moving component moves axially along the first mounting channel.

2. The starter motor according to claim 1, characterized in that, The starter includes a drive gear, which is mounted on one end of the one-way clutch.

3. A starter motor according to claim 2, characterized in that, The guiding component includes a fixed iron core, a movable iron core, and a coil. The fixed iron core is fixedly installed in the first mounting channel, and the movable iron core is installed on the moving component. The coil is configured to be energized and de-energized and is wound around the outer periphery of the fixed iron core and the movable iron core. When the coil is energized, the movable iron core is driven by magnetic force to move the moving component closer to the stationary trigger. When the coil is de-energized, the moving component moves away from the stationary trigger under the elastic restoring force of the reset component.

4. A starter motor according to claim 1, characterized in that, The outer casing forms two vents, one of which is for air intake and the other for air exhaust.

5. A starter motor according to claim 4, characterized in that, The housing has at least one connecting portion forming the vent, and the connecting portion protrudes from the surface of the housing.

6. A starter motor according to claim 1, characterized in that, The rotating component includes a rotating rack and a rotating gear. The rotating rack is mounted on the outer periphery of the moving component and extends axially along the first mounting channel. The rotating gear is rotatably mounted on the first mounting channel, and the rotating rack and the rotating gear are engaged. The fan is coaxially connected to the rotating gear.

7. A starter motor according to claim 1, characterized in that, The rotating component includes a rotating rack and a rotating gear. The rotating rack is mounted on the outer periphery of the moving component and extends axially along the first mounting channel. The rotating gear is rotatably mounted on the first mounting channel, and the rotating rack meshes with the rotating gear. The rotating component also includes a bevel gear set, which includes a first bevel gear and a second bevel gear. The first bevel gear is coaxially connected to the rotating gear, and the second bevel gear meshes with the first bevel gear. The rotating gear is coaxially connected to the second bevel gear.

8. A starter motor according to claim 6 or 7, characterized in that, The starter is equipped with multiple sets of airflow blowing mechanisms, and multiple fans can operate simultaneously when the moving part moves.

9. A starter motor according to claim 1, characterized in that, The starter motor further includes at least one seal, which is installed on the inner wall of the first mounting channel formed by the housing.

10. A starter motor according to claim 1, characterized in that, The electric mechanism forms at least one first threaded spline, the one-way clutch forms at least one second threaded spline, the one-way clutch is sleeved on the electric mechanism, and the second threaded spline is slidably inserted into the first threaded spline.

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