Novel starting and stopping automobile starter

Abstract

The utility model discloses a novel start-stop automobile starter, which relates to the technical field of starters and comprises a shell, an isolator assembly, a double-electromagnetic switch, a shifting fork, a stator, an armature, a brush carrier assembly and an exhaust water leakage pipe. The exhaust water leakage pipe is inserted into the front cover and the rear cover and penetrates outwards, and water is discharged along the exhaust water leakage pipe if water exists, so that the possibility that water enters a stator and an armature and is stagnated is avoided, and coil short circuit and starter damage caused by water are avoided; the exhaust water leakage pipe can be used for ventilation, heat is exhausted through the exhaust water leakage pipe, temperature rise is reduced, external cold air can also enter the starter to reduce the temperature, the starter is protected, and the service life is prolonged. The electromagnetic switch is a double-electromagnetic switch and is provided with a shifting fork electromagnetic switch and a main circuit electromagnetic switch, namely, two sets of switch systems are arranged, namely, two sets of movable iron cores and two sets of switch coils are respectively placed in the same shell, the static iron core is shared, and respective work can be independently completed at different time under the control of the electronic control unit.

Description

Technical Field

[0001] The utility model relates to the technical field of starters, and more particularly to a novel start-stop automobile starter. Background Art

[0002] A starter, also known as a motor, converts electrical energy into mechanical energy, driving the engine's flywheel to start the engine. Starters are categorized by their operating principle, including DC starters, gasoline starters, and compressed air starters. Internal combustion engines primarily use DC starters, characterized by their compact structure, simple operation, and ease of maintenance. DC starters are specifically designed for engine starting and require strong torque, drawing large currents of several hundred amperes.

[0003] Patent publication number CN215762000U discloses a planetary reduction DC starter for automobile engines. The starter comprises a housing, an electromagnetic switch, a shift fork mechanism, a stator mechanism, a brush holder assembly, an armature, a planetary reduction mechanism, and a one-way transmission mechanism. The electromagnetic switch is connected to the shift fork mechanism and controls its rotation. The shift fork mechanism is connected to the one-way transmission mechanism and drives the one-way transmission mechanism to extend or retract. The stator mechanism is electrically connected to the electromagnetic switch and the armature, respectively. One end of the armature is located within the brush holder assembly, and the other end is located within the planetary reduction mechanism and drives the planetary reduction mechanism to rotate. The planetary reduction mechanism is connected to the one-way transmission mechanism. When starting the automobile engine, the electromagnetic switch rotates the shift fork mechanism, which in turn extends the one-way transmission mechanism, causing it to engage with the engine's flywheel. Simultaneously, the armature rotates, driving the planetary reduction mechanism, which in turn drives the one-way transmission mechanism, thereby driving the engine's flywheel.

[0004] The starter disclosed in the above patent cannot effectively drain water when it enters the casing, which can easily cause the coil to short-circuit and damage the motor. In the front and rear covers, the motor (armature and isolator assembly) runs frequently at high speed, and the friction of the bearings and the heat generated by the current cause the temperature inside the machine to be very high, which will reduce its service life. Utility Model Content

[0005] In order to overcome the defects in the above-mentioned prior art, the purpose of the present invention is to provide a new start-stop car starter to solve the problems of water ingress into the shell and temperature increase inside the shell in the above-mentioned prior art.

[0006] In order to achieve the above objectives, the technical solution adopted by this utility model is:

[0007] A new start-stop automobile starter includes a housing, a one-way device assembly, a double electromagnetic switch, a shift fork, a stator, an armature, a brush holder assembly and an exhaust leakage pipe;

[0008] The housing includes a front cover, a middle cover and a rear cover. The isolator assembly is assembled between the front cover and the middle cover. The double electromagnetic switch is assembled on the front cover and is driven and connected to the isolator assembly through the fork. The stator is assembled behind the middle cover. The armature is assembled in the stator. One end of the armature is transmission-connected to the isolator assembly, and the other end is inserted into the brush holder assembly. The brush holder assembly is assembled in the rear cover, and the rear cover is assembled behind the stator. The exhaust water leakage pipe is inserted into the front cover and the rear cover and passes outward.

[0009] Preferably, the exhaust leakage pipe includes an air guide pipe, an insulating sleeve and a three-way pipe. The two air guide pipes are respectively inserted into the inner bottom of the front cover and the rear cover, and pass out to connect the two insulating sleeves, and the two insulating sleeves are then connected to the three-way pipe for merging.

[0010] Preferably, the isolator assembly includes a drive shaft, a transmission gear, a isolator and a drive gear;

[0011] The drive shaft is assembled on the middle cover, the transmission gear is assembled on the rear end of the drive shaft and is connected to the armature transmission, the one-way device is assembled on the drive shaft and can slide axially relative to the drive shaft, the one-way device passes through the front cover and the drive gear is assembled on the passing part.

[0012] Preferably, the dual electromagnetic switch includes a housing, a static iron core, a shift fork electromagnetic switch and a main circuit electromagnetic switch;

[0013] The static iron core is assembled in the housing, and the shift fork electromagnetic switch and the main circuit electromagnetic switch are respectively located on the left and right sides of the static iron core;

[0014] The shift fork electromagnetic switch includes an electromagnet coil and a shift fork moving iron core; the electromagnet coil is assembled in the housing and close to the stationary iron core, and the shift fork moving iron core is slidably assembled in the electromagnet coil and the housing. When the electromagnet coil is energized, a magnetic force is generated to drive the shift fork moving iron core to move toward the stationary iron core;

[0015] The main circuit electromagnetic switch includes a switch cover, a static contact, an electromagnetic switch coil and an electromagnetic switch moving iron core; the switch cover is installed on the right side of the shell and has two static contacts installed therein, the electromagnetic switch coil is installed in the shell and close to the static iron core, the electromagnetic switch moving iron core is slidably installed in the electromagnetic switch coil and the switch cover, and the electromagnetic switch coil is energized to generate magnetic force to drive the electromagnetic switch moving iron core to move toward the static iron core, and the electromagnetic switch moving iron core contacts the two static contacts to connect the main circuit.

[0016] Preferably, the shift fork electromagnetic switch further comprises a return spring, which is mounted between the shift fork movable iron core and the static iron core and drives the shift fork movable iron core to reset after the electromagnet coil is powered off.

[0017] Preferably, the main circuit electromagnetic switch further comprises a buffer spring, which is mounted between the electromagnetic switch moving iron core and the switch cover, and drives the electromagnetic switch moving iron core to reset after the electromagnetic switch coil is powered off.

[0018] Preferably, the shift fork electromagnetic switch further includes a bottom plate and a copper sleeve;

[0019] The left end of the shell extends inward to form a sliding cavity of the shift fork moving iron core, and the bottom plate is assembled between the inward extending portion of the left end of the shell and the electromagnet coil; the copper sleeve is assembled between the electromagnet coil and the shift fork moving iron core, and between the inward extending portion of the left end of the shell and the shift fork moving iron core.

[0020] Preferably, the main circuit electromagnetic switch further comprises an axial magnetic conductive cylinder and a radial magnetic conductive plate;

[0021] The axial magnetic conductive cylinder is located in the shell, with its left end abutting against the static iron core and its right end abutting against the radial magnetic conductive plate. The electromagnetic switch coil is located in the axial magnetic conductive cylinder; the radial magnetic conductive plate is located in the shell, with its left end abutting against the electromagnetic switch coil and its right end abutting against the switch cover.

[0022] Preferably, an assembly screw is provided at the left end of the shell.

[0023] Preferably, the two static contacts are connected to a B terminal and an M terminal respectively, the B terminal is connected to an ignition switch and a main circuit power supply via a line, and the M terminal is connected to an armature coil via a line;

[0024] The electromagnet coil and the electromagnetic switch coil are both connected to an electronic control unit, and the electronic control unit is connected to a coil power supply, a rotation speed detection sensor and an ignition switch.

[0025] Beneficial effects of the utility model:

[0026] The utility model provides a new start-stop automobile starter, in which the exhaust water leakage pipe is inserted into the front cover and the rear cover and passes outward. If there is water, it will be discharged through the exhaust water leakage pipe, thereby ensuring that there is no possibility of water entering or stagnating in the stator and the armature, thereby avoiding water causing a coil short circuit and damage to the starter; the exhaust water leakage pipe can also be ventilated, and heat is discharged through the exhaust water leakage pipe to reduce temperature rise. External cold air can also enter the machine to reduce the temperature, thereby protecting the starter and extending its service life.

[0027] The new start-stop automobile starter provided by this utility model features a dual electromagnetic switch, including a shift fork electromagnetic switch and a main circuit electromagnetic switch. This means that two switch systems, namely two moving iron cores and two switch coils, are housed in the same housing and share a common static iron core. These systems can independently operate at different times under the control of an electronic control unit. For the shift fork electromagnetic switch, the head of its moving iron core is connected to the shift fork and placed within the electromagnetic coil. This is responsible for pushing the one-way actuator out. Energizing the electromagnetic coil generates a magnetic force to push the shift fork out. For the main circuit electromagnetic switch, energizing the electromagnetic switch coil generates a magnetic force to push the electromagnetic switch moving iron core, connecting the main circuit and generating torque. This torque is then output through the armature and transmitted to the one-way actuator, starting the engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the automobile starter of the utility model;

[0029] Figure 2 This is a schematic diagram of the one-way device assembly of the utility model;

[0030] Figure 3 This is a schematic diagram of a double electromagnetic switch of the utility model;

[0031] Figure 4 This is the electrical schematic diagram of the double electromagnetic switch of the utility model;

[0032] Reference numerals:

[0033] 1. Housing; 11. Front cover; 12. Middle cover; 13. Rear cover; 2. One-way device assembly; 21. Drive shaft; 22. Transmission gear; 23. One-way device; 24. Drive gear; 3. Dual electromagnetic switch; 31. Housing; 32. Stationary iron core; 33. Shift fork electromagnetic switch; 331. Electromagnetic coil; 332. Shift fork moving iron core; 333. Return spring; 334. Bottom plate; 335. Copper sleeve; 34. Main circuit electromagnetic switch; 341. Switch cover; 342. Stationary iron core Contactor; 343, electromagnetic switch coil; 344, electromagnetic switch moving iron core; 345, buffer spring; 346, axial magnetic guide tube; 347, radial magnetic guide plate; 35, assembly screw; 361, B terminal; 362, M terminal; 363, ignition switch; 364, main circuit power supply; 365, armature coil; 366, electronic control unit; 367, speed detection sensor; 4, pull fork; 5, stator; 6, armature; 7, brush holder assembly; 8, exhaust leakage pipe. DETAILED DESCRIPTION

[0034] The following will provide a clear and complete description of the concept, specific structure and technical effects of the present invention in conjunction with the embodiments and drawings, so as to fully understand the purpose, features and effects of the present invention.

[0035] Example 1

[0036] A new type of start-stop car starter, such as Figure 1 As shown, it includes a housing 1, a one-way device assembly 2, a double electromagnetic switch 3, a fork 4, a stator 5, an armature 6, a brush holder assembly 7 and an exhaust leakage pipe 8;

[0037] The housing 1 includes a front cover 11, a middle cover 12 and a rear cover 13. The one-way device assembly 2 is assembled between the front cover 11 and the middle cover 12. The double electromagnetic switch 3 is assembled on the front cover 11 and is driven and connected to the one-way device assembly 2 through the fork 4. The stator 5 is assembled behind the middle cover 12. The armature 6 is assembled in the stator 5. One end of the armature 6 is transmission-connected to the one-way device assembly 2, and the other end is inserted into the brush holder assembly 7. The brush holder assembly 7 is assembled in the rear cover 13, and the rear cover 13 is assembled behind the stator 5; the exhaust leakage pipe 8 is inserted into the front cover 11 and the rear cover 13, and passes outward.

[0038] In this embodiment, the exhaust leakage pipe 8 includes an air guide pipe, an insulating sleeve and a three-way pipe. The two air guide pipes are respectively inserted into the bottom of the front cover 11 and the rear cover 13, and pass out to connect the two insulating sleeves, and the two insulating sleeves are then connected to the three-way pipe for merging.

[0039] like Figure 2 As shown, the one-way device assembly 2 includes a drive shaft 21, a transmission gear 22, a one-way device 23 and a drive gear 24; the drive shaft 21 is assembled on the middle cover 12, the transmission gear 22 is assembled on the rear end of the drive shaft 21 and is transmission-connected to the armature 6, the one-way device 23 is assembled on the drive shaft 21 and can slide axially relative to the drive shaft 21, the one-way device 23 passes through the front cover 11 and is assembled with the drive gear 24 at the passing part.

[0040] In this embodiment, the front cover 11 is a foundational component, providing support for the entire motor. It serves as an interface component for mounting and fixing to the engine, and is also a crucial support for power and torque output. It has a mounting notch at the front end and a mating notch at the rear end for the isolator assembly. The rear end notch also has a positioning notch. The isolator assembly 2 consists of many parts, but the drive gear 24 and isolator 22 are separate components, riveted to the isolator 22 via a ring gear and a gear sleeve. This is its defining characteristic, serving as the interface component for transmitting torque and starting the engine. The stator 5 is a core component of the motor, providing support and connection between the front and rear ends. It is the carrier for the magnetic field generated by the fixed magnetic poles. Its front end notch has a notch that mates with the boss on the middle cover 12 to radially secure the stator. It also has a notch at the rear end, corresponding to the notch in the rear cover 13, to relatively determine the rear cover's radial position. The armature 6 is another core component of the motor, serving as part of the electrical circuitry. It carries current and, under the influence of the stator's magnetic field, generates torque, which is then transmitted to the isolator's drive teeth. The brush holder assembly 7 is screwed to the rear cover 13. Its function is to electrically transmit the stator current to the armature coil. The dual electromagnetic switch 3 connects the power supply, generates magnetic force, and pushes the one-way valve to the appropriate position. Its drive teeth engage with the engine, connecting the entire circuit. This switch is a dual electromagnetic switch with distinct structural and operational features. A tee, air duct, and insulating conduit constitute the special exhaust and water leakage system of this application's product. Air ducts are installed in appropriate locations on the front and rear covers. Any water will flow through the air ducts into the insulating sleeve and be discharged through the central tee, ensuring that no water can enter or stagnate in the stator or armature.

[0041] Example 2

[0042] This embodiment is further described on the basis of embodiment 1. Figure 3 and 4 As shown, the double electromagnetic switch 3 includes a housing 31, a static iron core 32, a shift fork electromagnetic switch 33 and a main circuit electromagnetic switch 34;

[0043] The static iron core 32 is assembled in the housing 31, and the shift fork electromagnetic switch 33 and the main circuit electromagnetic switch 34 are respectively located on the left and right sides of the static iron core 32;

[0044] The shift fork electromagnetic switch 33 includes an electromagnet coil 331 and a shift fork moving iron core 332. The electromagnet coil 331 is assembled in the housing 31 and is close to the stationary iron core 32. The shift fork moving iron core 332 is slidably assembled in the electromagnet coil 331 and the housing 31. When the electromagnet coil 331 is energized, it generates a magnetic force that drives the shift fork moving iron core 332 to move toward the stationary iron core 32.

[0045] The main circuit electromagnetic switch 34 includes a switch cover 341, a static contact 342, an electromagnetic switch coil 343 and an electromagnetic switch moving iron core 344; the switch cover 341 is assembled on the right side of the outer shell 31 and two static contacts 342 are assembled therein, the electromagnetic switch coil 343 is assembled in the outer shell 31 and close to the static iron core 32, the electromagnetic switch moving iron core 344 is slidably assembled in the electromagnetic switch coil 343 and the switch cover 341, and the electromagnetic switch coil 343 is energized to generate magnetic force to drive the electromagnetic switch moving iron core 344 to move toward the static iron core 32, and the electromagnetic switch moving iron core 344 contacts the two static contacts 342 to connect the main circuit.

[0046] In this embodiment, the shift fork electromagnetic switch 33 and the main circuit electromagnetic switch 34 can be independent of each other. The shift fork electromagnetic switch 33 is used to drive the shift fork to move forward and backward; the main circuit electromagnetic switch 34 is used to connect the main circuit.

[0047] Specifically, for the shift fork electromagnetic switch 33, the left end of the shift fork moving iron core 332 is connected to the shift fork, and the electromagnet coil 331 is energized to generate magnetic force to drive the shift fork moving iron core 332 to move toward the static iron core 32, thereby driving the shift fork to rotate. The shift fork drives the one-way device to extend forward, so that the driving gear at the front end of the one-way device engages with the engine flywheel.

[0048] For the main circuit electromagnetic switch 34, the electromagnetic switch coil 343 is energized to generate magnetic force to drive the electromagnetic switch moving iron core 344 to move toward the static iron core 32, and the electromagnetic switch moving iron core 344 contacts the two static contacts 342 to connect the main circuit. The rotation of the armature drives the one-way device to rotate, and the driving gear at the front end of the one-way device drives the engine flywheel to rotate.

[0049] like Figure 3 As shown, the shift fork electromagnetic switch 33 further includes a return spring 333 , which is assembled between the shift fork movable iron core 332 and the static iron core 32 , and drives the shift fork movable iron core 332 to reset after the electromagnetic coil 331 is powered off.

[0050] like Figure 3 As shown, the main circuit electromagnetic switch 34 further includes a buffer spring 345 , which is assembled between the electromagnetic switch moving iron core 344 and the switch cover 341 , and drives the electromagnetic switch moving iron core 344 to reset after the electromagnetic switch coil 343 is powered off.

[0051] like Figure 3 As shown, the shift fork electromagnetic switch 33 also includes a base plate 334 and a copper sleeve 335; the left end of the shell 31 extends inward to form a sliding cavity for the shift fork movable iron core, and the base plate 334 is assembled between the inward extension portion of the left end of the shell 31 and the electromagnet coil 331; the copper sleeve 335 is assembled between the electromagnet coil 331 and the shift fork movable iron core 332, and between the inward extension portion of the left end of the shell 31 and the shift fork movable iron core 332.

[0052] like Figure 3 As shown, the main circuit electromagnetic switch 34 also includes an axial magnetic conductive cylinder 346 and a radial magnetic conductive plate 347; the axial magnetic conductive cylinder 346 is located in the shell 31 and its left end is against the static iron core 32 and its right end is against the radial magnetic conductive plate 347, and the electromagnetic switch coil 343 is located in the axial magnetic conductive cylinder 346; the radial magnetic conductive plate 347 is located in the shell 31 and its left end is against the electromagnetic switch coil 343 and its right end is against the switch cover 341.

[0053] like Figure 3 As shown, an assembly screw 35 is provided at the left end of the housing 31 to assemble the dual electromagnetic switch on the starter.

[0054] like Figure 4 As shown, the two static contacts 342 are connected to the B terminal 361 and the M terminal 362 respectively. The B terminal 361 is connected to the ignition switch 363 and the main circuit power supply 364 through a line, and the M terminal 362 is connected to the armature coil 365 through a line.

[0055] The electromagnetic coil 331 and the electromagnetic switch coil 343 are both connected to an electronic control unit 366 (ECU). The electronic control unit 366 is connected to a coil power supply, a rotation speed detection sensor 367 and an ignition switch 363 .

[0056] In order to better understand the present invention, the following is a complete description of the working principle of the present invention:

[0057] The starter's working process is to introduce power through a dual electromagnetic switch, push out the one-way drive gear, and connect the main circuit to generate torque to start the engine. Specifically: Turn on the ignition switch to start the engine: When the ignition switch is turned on and the signal to start the engine is received, the electromagnet coil controlled by the ECU outputs a conduction signal, and the battery supplies power to the electromagnet coil. The static iron core is magnetized, attracting its shift fork moving iron core, causing it to move toward the static iron core. The shift fork fixed to the shift fork moving iron core end pushes the drive gear to move in the opposite direction of the motor, and stops when the drive gear presses against the end face of the engine flywheel. Starting from the engine start signal, after a specified time, the ECU-controlled relay coil and the electromagnetic switch coil are energized at the same time, and their contacts are closed. As a result, current flows through the armature coil, generating torque. This torque is transferred to the drive shaft, which in turn rotates. This torque is then transmitted to the drive gear attached to it via a one-way clutch. When the drive gear reaches a position where it can mesh with the flywheel ring gear, the reaction force of the transmission spring (return spring) causes the drive gear to mesh with the flywheel ring gear. The drive gear then transmits torque to the flywheel ring gear, starting the engine. After the engine starts, a stop signal from the ECU deenergizes the electromagnet coil, demagnetizing the static iron core and eliminating the attraction to the shift fork's moving iron core. The shift fork's moving iron core, acting under the action of the return spring, returns to its original position, and the drive gear and the one-way clutch disengage from the flywheel ring gear. Furthermore, the electromagnetic switch coil that controls the on / off current to the motor is deenergized, removing the attraction to the moving iron core and returning it to its original position. The contacts open, along with the relay contacts, disconnecting the battery power supply, and the armature gradually decelerates until it stops. The engine can be restarted in the same manner.

[0058] Regarding the exhaust leakage pipe, if there is moisture in the front cover and the rear cover, it will be discharged into the air duct located at the lower end of the starter, and flow into the insulating sleeve and discharged from the tee pipe to ensure that moisture does not flow into the space of the stator and armature, causing the coil to short-circuit and damage the motor; another function of the exhaust leakage pipe is ventilation. Due to the frequent high-speed operation of the motor in the front cover and the rear cover, the friction of the bearings and the heat generated by the current cause the temperature inside the machine to be very high. The heat is discharged through the exhaust leakage pipe to reduce the temperature rise. The outside cold air can also enter the machine to reduce the temperature, which can also reduce the temperature rise, protect the motor and prolong its life.

[0059] The above is a detailed description of the implementation methods of the present invention, but the present invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalents or substitutions are all included in the scope defined by the claims of the present invention.

Claims

1. A new start-stop car starter, characterized in that: It includes a housing (1), a one-way device assembly (2), a double electromagnetic switch (3), a fork (4), a stator (5), an armature (6), a brush holder assembly (7) and an exhaust water leakage pipe (8); The housing (1) includes a front cover (11), a middle cover (12) and a rear cover (13); the one-way device assembly (2) is assembled between the front cover (11) and the middle cover (12); the double electromagnetic switch (3) is assembled on the front cover (11) and is drivingly connected to the one-way device assembly (2) through the fork (4); the stator (5) is assembled behind the middle cover (12); the armature (6) is assembled in the stator (5); one end of the armature (6) is drivingly connected to the one-way device assembly (2), and the other end is inserted into the brush holder assembly (7); the brush holder assembly (7) is assembled in the rear cover (13); and the rear cover (13) is assembled behind the stator (5); the exhaust water leakage pipe (8) is inserted into the front cover (11) and the rear cover (13) and passes outward.

2. A novel start-stop automobile starter as claimed in claim 1, characterized in that: The exhaust leakage pipe (8) comprises an air guide pipe, an insulating sleeve and a three-way pipe. The two air guide pipes are respectively inserted into the bottom of the front cover (11) and the rear cover (13), and pass outward to connect the two insulating sleeves. The two insulating sleeves are then connected to the three-way pipe for merging.

3. A novel start-stop automobile starter as claimed in claim 1, characterized in that: The isolator assembly (2) includes a drive shaft (21), a transmission gear (22), a isolator (23) and a drive gear (24); The drive shaft (21) is assembled on the middle cover (12), the transmission gear (22) is assembled on the rear end of the drive shaft (21) and is in transmission connection with the armature (6), the one-way device (23) is assembled on the drive shaft (21) and can slide axially relative to the drive shaft (21), and the one-way device (23) passes through the front cover (11) and the drive gear (24) is assembled on the passing portion.

4. A novel start-stop automobile starter as claimed in claim 1, characterized in that: The dual electromagnetic switch (3) comprises a housing (31), a static iron core (32), a shift fork electromagnetic switch (33) and a main circuit electromagnetic switch (34); The static iron core (32) is assembled in the housing (31), and the shift fork electromagnetic switch (33) and the main circuit electromagnetic switch (34) are respectively located on the left and right sides of the static iron core (32); The shift fork electromagnetic switch (33) comprises an electromagnet coil (331) and a shift fork moving iron core (332); the electromagnet coil (331) is assembled in the housing (31) and close to the static iron core (32); the shift fork moving iron core (332) is slidably assembled in the electromagnet coil (331) and the housing (31); the electromagnet coil (331) is energized to generate magnetic force to drive the shift fork moving iron core (332) to move toward the static iron core (32); The main circuit electromagnetic switch (34) comprises a switch cover (341), a static contact (342), an electromagnetic switch coil (343) and an electromagnetic switch moving iron core (344); the switch cover (341) is mounted on the right side of the housing (31) and has two static contacts (342) mounted therein; the electromagnetic switch coil (343) is mounted in the housing (31) and is close to the static iron core (32); the electromagnetic switch moving iron core (344) is slidably mounted in the electromagnetic switch coil (343) and the switch cover (341); the electromagnetic switch coil (343) is energized to generate magnetic force to drive the electromagnetic switch moving iron core (344) to move toward the static iron core (32); the electromagnetic switch moving iron core (344) contacts the two static contacts (342) and is connected to the main circuit.

5. A novel start-stop automobile starter as claimed in claim 4, characterized in that: The shift fork electromagnetic switch (33) further includes a return spring (333), which is assembled between the shift fork movable iron core (332) and the static iron core (32) and drives the shift fork movable iron core (332) to reset after the electromagnet coil (331) is powered off.

6. A novel start-stop automobile starter as claimed in claim 4, characterized in that: The main circuit electromagnetic switch (34) further comprises a buffer spring (345), which is assembled between the electromagnetic switch moving iron core (344) and the switch cover (341) and drives the electromagnetic switch moving iron core (344) to reset after the electromagnetic switch coil (343) is powered off.

7. A novel start-stop automobile starter as claimed in claim 4, characterized in that: The shift fork electromagnetic switch (33) further includes a bottom plate (334) and a copper sleeve (335); The left end of the housing (31) extends inward to form a sliding cavity of the shift fork movable iron core, and the bottom plate (334) is assembled between the inward extension portion of the left end of the housing (31) and the electromagnet coil (331); the copper sleeve (335) is assembled between the electromagnet coil (331) and the shift fork movable iron core (332), and between the inward extension portion of the left end of the housing (31) and the shift fork movable iron core (332).

8. A novel start-stop automobile starter as claimed in claim 4, characterized in that: The main circuit electromagnetic switch (34) further includes an axial magnetic guide cylinder (346) and a radial magnetic guide plate (347); The axial magnetic guide cylinder (346) is located in the housing (31) and its left end is against the static iron core (32) and its right end is against the radial magnetic guide plate (347); the electromagnetic switch coil (343) is located in the axial magnetic guide cylinder (346); the radial magnetic guide plate (347) is located in the housing (31) and its left end is against the electromagnetic switch coil (343) and its right end is against the switch cover (341).

9. A novel start-stop automobile starter as claimed in claim 4, characterized in that: An assembly screw (35) is provided at the left end of the housing (31).

10. A novel start-stop vehicle starter as claimed in claim 4, characterized in that: The two static contacts (342) are respectively connected to a B terminal (361) and an M terminal (362); the B terminal (361) is connected to an ignition switch (363) and a main circuit power supply (364) via a line; and the M terminal (362) is connected to an armature coil (365) via a line. The electromagnet coil (331) and the electromagnetic switch coil (343) are both connected to an electronic control unit (366), and the electronic control unit (366) is connected to a coil power supply, a rotation speed detection sensor (367), and an ignition switch (363).

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