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. The housing forms a first mounting channel and a second mounting channel. The electromagnetic switch mechanism comprises a guiding and moving part, a moving part, a triggering part and a reset part. The moving part is inserted into the first installation channel 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 rotating part and a fan, the fan is installed in the first installation channel, and the rotating part can drive the fan to rotate when the moving part moves in the axial direction of the first installation channel. According to the starter, hot air can be introduced into the shell, so that the starter is dried by the hot air, parts in the shell are prevented from being rusted and damaged, and the service life of the starter is further prolonged.

Description

Technical Field

[0001] This utility model relates to the field of starter technology, and in particular to starters. 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 motor housings typically have vents. During startup, airflow enters and exits the housing through these vents to balance the pressure difference within. However, this airflow also brings moisture and dust from the external environment into the housing. When the starter motor is running, its electromagnetic switching mechanism operates and generates heat. This heat heats the air inside the housing, allowing some water vapor to escape through the vents. However, the natural rate of evacuation of high-temperature water vapor from the vents is low, resulting in poor drying. Consequently, the starter motor will still malfunction due to moisture accumulation after prolonged use. Utility Model Content

[0004] One advantage of this invention is that it provides a starter motor that can introduce hot air into the housing to dry the starter motor, prevent the parts inside the housing from rusting and being damaged, and thus extend 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, the starter motor comprising:

[0006] The housing forms a first installation channel, a second installation channel, a first air passage, a second air passage, at least one first inlet / outlet, at least one second inlet / outlet, at least one first vent, and at least one second vent. The first inlet / outlet and the second inlet / outlet are both connected to the first air passage, and the first vent and the second vent are both connected to the second air passage.

[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 inserted into the first mounting channel in a manner that allows it to 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, which is mounted in the second mounting channel;

[0009] The clutch mechanism includes a shift fork;

[0010] A drive mechanism, comprising a connecting seat and a drive gear, wherein the drive gear is mounted on one end of the connecting seat, the shift fork is pivotally connected to the housing, and both ends of the shift fork are respectively connected to the end of the moving component away from the moving trigger and the connecting seat, and the connecting seat is axially movably sleeved on one end of the electric mechanism along the second mounting channel;

[0011] At least one airflow blowing mechanism includes a rotating component and a fan, the fan being mounted in the first mounting channel. The rotating component is disposed between the moving component and the fan such that it can drive the fan when the moving component moves axially along the first mounting channel. The first inlet and outlet face the engine, the second inlet and outlet face the side opposite to the fan and are intersected by the fan, and the first vent faces the side opposite to the fan and is opposite to the fan.

[0012] According to one embodiment of the present invention, the clutch mechanism further includes a one-way clutch, which is capable of driving the drive mechanism to rotate when the electric mechanism rotates.

[0013] According to one embodiment of the present invention, the guiding component includes a fixed iron core, a moving iron core, and a coil. The fixed iron core is fixedly installed in the first mounting channel, the moving iron core is installed in the moving component, and the coil is configured to be energized and de-energized and wound around the outer periphery of the fixed iron core and the moving iron core. When the coil is energized, the moving 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.

[0014] According to one embodiment of the present invention, the rotating component includes a rotating rack, a rotating gear, and a bevel gear set. 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 bevel gear set 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.

[0015] 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.

[0016] According to one embodiment of the present invention, 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.

[0017] According to one embodiment of the present invention, the electric mechanism forms at least one first threaded spline, the connecting seat forms at least one second threaded spline, and the second threaded spline is slidably inserted into the first threaded spline.

[0018] According to one embodiment of the present invention, the second vent faces the engine.

[0019] According to one embodiment of the present invention, the starter motor further includes a temperature sensor, which is installed in the first mounting channel to detect the temperature in the first mounting channel, and the temperature sensor is communicatively connected to the vehicle's main control system.

[0020] According to one embodiment of the present invention, the inner wall of the second mounting channel protrudes towards the axis of the second mounting channel to form a stop step. When the shift fork pushes the connecting seat to drive the drive gear to extend out of the second mounting channel to engage with the engine, the connecting seat abuts against the stop step. Attached Figure Description

[0021] Figure 1 A schematic diagram of the starter motor described in this utility model is shown.

[0022] Figure 2 A cross-sectional view of the starter motor of the present invention in one state is shown.

[0023] Figure 3 It shows Figure 2 Enlarged diagram of part A in the middle.

[0024] Figure 4 A cross-sectional view of the starter motor section of the present invention is shown.

[0025] Figure 5 A partial schematic diagram of the starter motor described in this utility model is shown.

[0026] Figure 6 It shows Figure 5 Enlarged schematic diagram of part B in the middle. Detailed Implementation

[0027] 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.

[0028] 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.

[0029] 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.

[0030] refer to Figures 1 to 6 The starter motor according to a preferred embodiment of the present invention will be described in detail below, the starter motor including a housing 10 and an electromagnetic switch mechanism 20.

[0031] The outer casing 10 forms a first mounting channel 1001, a second mounting channel 1002, a first airflow channel 1003, and a second airflow channel 1004. The first mounting channel 1001 is connected to the outside through the first airflow channel 1003 and the second airflow channel 1004, and airflow enters and exits the first mounting channel 1001 through the first airflow channel 1003 and the second airflow channel 1004, respectively.

[0032] 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.

[0033] 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 inserted into 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.

[0034] 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 is supplied to the starter motor.

[0035] 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.

[0036] In one example, the reset member 24 is implemented as a spring.

[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] It is worth mentioning that the starter motor also 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, so that the moving part 22 is sealed and inserted into the first mounting channel 1001. It can be understood that the sealed connection between the moving part 22 and the housing 10 can prevent external dust, moisture and other impurities from entering the first mounting channel 1001, thereby protecting the parts installed in the first mounting channel 1001.

[0039] In one example, the seal 30 is implemented as a rubber ring.

[0040] Furthermore, the starter motor also includes an electric mechanism 40, a clutch mechanism 50, and a drive mechanism 60.

[0041] The electric mechanism 40 is mounted in the second mounting channel 1002. The clutch mechanism 50 includes a shift fork 51. The drive mechanism 60 includes a connecting seat 61 and a drive gear 62. The drive gear 62 is mounted on one end of the connecting seat 61, the shift fork 51 is pivotally connected to the housing 10, and both ends of the shift fork 51 are respectively connected to the end of the moving member 22 away from the moving trigger 231 and the connecting seat 61. The connecting seat 61 is axially movably sleeved on one end of the electric mechanism 40 along the second mounting channel 1002.

[0042] 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 51 to rotate, causing the shift fork 51 to push the connecting seat 61 to drive the drive gear 62 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 62 to rotate through the connecting seat 61 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 51 to reset, the electric mechanism 40 stops rotating, and the shift fork 51 pulls the electric mechanism 40 to drive the drive gear 62 back into the second mounting channel 1002 and loses engagement with the engine.

[0043] Preferably, the inner wall of the second mounting channel 1002 protrudes towards the axis of the second mounting channel 1002 to form a stop step 11. When the shift fork 51 pushes the connecting seat 61 to drive the drive gear 62 out of the second mounting channel 1002 to engage with the engine, the connecting seat 61 abuts against the stop step 11.

[0044] It is worth mentioning that the electric mechanism 40 forms at least one first threaded spline 41, and the connecting seat 61 forms at least one second threaded spline 611. The second threaded spline 611 is slidably inserted into the first threaded spline 41.

[0045] Preferably, the clutch mechanism 50 further includes a one-way clutch 52, which is capable of driving the drive mechanism 60 to rotate when the electric mechanism 40 rotates.

[0046] Furthermore, the starter also includes at least one airflow blowing mechanism 70.

[0047] 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 when the moving component 22 moves axially along the first mounting channel 1001.

[0048] The housing 10 also forms at least one first inlet / outlet 1005 and at least one second inlet / outlet 1006, both of which are connected to the first airflow passage 1003. The first inlet / outlet 1005 faces the engine, and the second inlet / outlet 1006 faces the side of the fan 72 opposite to the guide member 21 and is intersected by the fan 72. The housing 10 also forms at least one first vent 1007 and one second vent 1008, both of which are connected to the second airflow passage 1004. The first vent 1007 faces the side of the fan 72 opposite to the guide member 21 and is opposite to the fan 72.

[0049] Specifically, when the moving component 22 moves axially away from the static trigger 232 along the first mounting channel 1001 to reset, the moving component 22 drives the fan 72 to rotate via the rotating component 71, and the airflow generated by the fan 72 is discharged from the second air passage 1004. At this time, a negative pressure is formed on the side of the fan 72 facing the guide component 21. Under the action of the negative pressure, the airflow actively flows towards the side of the fan 72 facing the guide component 21 via the first air passage 1003. In this way, the heat generated by the engine operation heats the surrounding air, and the hot air flows from the first inlet / outlet 1005 through the first air passage 1003 to the side of the fan 72 facing the guide component 21, so that the hot air dries the first mounting channel 1001. After drying the first mounting channel 1001, the hot air is blown by the fan 72 towards the second air passage 1004, thereby drying the starter motor and protecting the parts installed in the housing 10.

[0050] Preferably, the second vent 1008 faces the engine. Then, when the moving part 22 moves axially along the first mounting channel 1001 toward the direction close to the static trigger 232, the moving part 22 drives the fan 72 to rotate via the rotating part 71, and the airflow generated by the fan 72 is directed toward one side of the guide part 21. The hot air passes through the second vent 1004 and is blown toward the guide part 21 by the fan 72, so that the hot air dries the first mounting channel 1001. After drying the first mounting channel 1001, the hot air exits through the first vent 1003.

[0051] In a preferred embodiment, the rotating component 71 includes a rotating rack 711, a rotating gear 712, and a bevel gear set 713. 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 on the first mounting channel 1001, and the rotating rack 711 meshes with the rotating gear 712. 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. In this way, 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, so that the rotating gear 712 drives the first bevel gear 7131 to rotate, and then the second bevel gear 7132 drives the fan 72 to rotate in the first mounting channel 1001.

[0052] 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 airflow.

[0053] Furthermore, the starter motor also includes a temperature sensor 80.

[0054] The temperature sensor 80 is installed in the first mounting channel 1001 to detect the temperature within the first mounting channel 1001. The temperature sensor 80 is communicatively connected to the vehicle's main control system. When the temperature sensor 80 detects that the temperature within the first mounting channel 1001 is too high, the vehicle's main control system cuts off the current supplied to the starter motor to prevent the starter motor from overheating and operating under overload.

[0055] 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: The housing forms a first installation channel, a second installation channel, a first air passage, a second air passage, at least one first inlet / outlet, at least one second inlet / outlet, at least one first vent, and at least one second vent. The first inlet / outlet and the second inlet / outlet are both connected to the first air passage, and the first vent and the second vent are both connected to the second air passage. 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 inserted into the first mounting channel in a manner that allows it to 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, which is mounted in the second mounting channel; The clutch mechanism includes a shift fork; A drive mechanism, comprising a connecting seat and a drive gear, wherein the drive gear is mounted on one end of the connecting seat, the shift fork is pivotally connected to the housing, and both ends of the shift fork are respectively connected to the end of the moving component away from the moving trigger and the connecting seat, and the connecting seat is axially movably sleeved on one end of the electric mechanism along the second mounting channel; At least one airflow blowing mechanism includes a rotating component and a fan, the fan being mounted in the first mounting channel. The rotating component is disposed between the moving component and the fan such that it can drive the fan when the moving component moves axially along the first mounting channel. The first inlet and outlet face the engine, the second inlet and outlet face the side opposite to the fan and are intersected by the fan, and the first vent faces the side opposite to the fan and is opposite to the fan.

2. The starter motor according to claim 1, characterized in that, The clutch mechanism further includes a one-way clutch, which is capable of driving the drive mechanism to rotate when the electric mechanism rotates.

3. The starter motor according to claim 2, characterized in that, The guiding component includes a fixed iron core, a moving iron core, and a coil. The fixed iron core is fixedly installed in the first mounting channel, and the moving 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 moving iron core. When the coil is energized, the moving 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. The starter motor according to claim 3, characterized in that, The rotating component includes a rotating rack, a rotating gear, and a bevel gear set. 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 bevel gear set 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.

5. The starter motor according to claim 4, 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.

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

7. The starter motor according to claim 1, characterized in that, The electric mechanism forms at least one first threaded spline, and the connecting seat forms at least one second threaded spline, the second threaded spline being slidably inserted into the first threaded spline.

8. The starter motor according to claim 1, characterized in that, The second vent faces the engine.

9. The starter motor according to claim 1, characterized in that, The starter motor also includes a temperature sensor, which is installed in the first mounting channel to detect the temperature within the first mounting channel. The temperature sensor is communicatively connected to the vehicle's main control system.

10. The starter motor according to claim 1, characterized in that, The inner wall of the second mounting channel protrudes towards the axis of the second mounting channel to form a stop step. When the shift fork pushes the connecting seat to drive the drive gear to extend out of the second mounting channel to engage with the engine, the connecting seat abuts against the stop step.

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