Electronic vacuum pump brush carrier module

Abstract

The invention discloses a brush holder module of an electronic vacuum pump, and relates to the technical field of motor brush holders, the motor brush holder comprises a sealing plug, a stator assembly, a rotor assembly, a brush holder assembly, a shock pad, an air outlet sheath, a support base, a mounting sleeve, a sealing ring and a vacuum pump, the stator assembly can generate a stable magnetic field environment, and the rotor assembly can generate a magnetic field; the rotor assembly rotates in a magnetic field generated by the stator assembly to generate rotating motion, the brush carrier assembly can be powered on to generate a magnetic field so that the rotor assembly can rotate, meanwhile, an electric brush can be supported and positioned, normal rotation of the rotor assembly is guaranteed, and the shock pad absorbs and reduces vibration in the starting and running process of the vacuum pump. The vibration is prevented from being transmitted to other parts of the vacuum pump, the supporting base is used for installing the stator assembly, the rotor assembly, the brush carrier assembly and the vacuum pump, the shock pad is installed on the supporting base through the installation sleeve, and the vacuum pump is used for increasing braking force by generating negative pressure.

Description

Technical Field

[0001] The invention relates to the technical field of motor brush holders, in particular to an electronic vacuum pump brush holder module. Background Art

[0002] As the country focuses on promoting the development of new energy pure electric vehicles, new energy pure electric vehicles generally use brake vacuum boosters to assist braking, and brake vacuum boosters require a vacuum source to work. When the engine of an ordinary fuel vehicle is running, its engine air intake can generate vacuum for the brake booster to work, while new energy pure electric vehicles are driven by motors and no vacuum is generated. They can only rely on electronic vacuum pumps to provide an independent vacuum source. The electronic vacuum pumps on cars are usually driven by motors and generate vacuum through the movement of internal pistons, blades or diaphragms. These pumps monitor and adjust the operation of the pumps through electronic control units to maintain the required vacuum. Electronic vacuum pumps can provide a stable vacuum source when the engine is not running or the engine load is high.

[0003] Defects of existing technology: the existing vacuum pump is composed of a brush motor and a pump part, and the service life of the brush motor is relatively short; in order to meet the requirements of electromagnetic compatibility, the existing vacuum pump has a large capacitor, two small capacitors, and a diode on the brush holder assembly. Each component has two pins, and the capacitor pins need to be shortened. The eight pins are connected to the conductive sheet by pressure welding. The process is complicated and cannot be automated. Manual operation is required, the working hours are very long, which increases labor costs and has low assembly efficiency; the existing vacuum pump brush holder uses the thermoplastic material PPS-GF40, which will soften when it reaches a high temperature of 180°C. Under extreme working conditions, the vacuum pump will work continuously if the brakes are continuously stepped on. At this time, the temperature of the vacuum pump is particularly high, reaching 180°C, and the vacuum pump will fail after 30 minutes. Summary of the invention

[0004] The object of the present invention is to provide an electronic vacuum pump brush holder module to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: the brush holder module includes a stator assembly, a sealing plug is installed at one end of the stator assembly, a rotor assembly is rotatably connected inside the stator assembly, one end of the rotor assembly is rotatably connected to a support base, the stator assembly is installed on the support base, a brush holder assembly is installed inside the support base, the rotor assembly rotates on the brush holder assembly, an air outlet sleeve is installed on one side of the support base, a shock-absorbing pad is installed on the support base, a mounting sleeve is installed in the through groove of the shock-absorbing pad, a vacuum pump is installed at one end of the support base, the vacuum pump is installed on the rotor assembly, and a sealing ring is installed between the vacuum pump and the support base. The stator assembly can generate a stable magnetic field environment. The rotor assembly generates rotational motion by rotating in the magnetic field generated by the stator assembly to realize the conversion of electrical energy into mechanical energy. The brush holder assembly can be energized to generate a magnetic field to rotate the rotor assembly. At the same time, it can support and position the brushes and press the brushes against the commutator to stably conduct current between the brushes and the commutator to ensure the normal rotation of the rotor assembly. The shock-absorbing pad can absorb and reduce vibration during the startup and operation of the vacuum pump to prevent vibration from being transmitted to other parts of the vacuum pump, thereby reducing the impact of noise and vibration on the equipment and extending the service life of the vacuum pump. The support base is used to install the stator assembly, rotor assembly, brush holder assembly and vacuum pump. The mounting sleeve installs the shock-absorbing pad on the support base. The function of the vacuum pump is to increase the braking force by generating negative pressure.

[0006] The stator assembly includes a housing, the sealing plug is installed at one end of the housing, the other end of the housing is installed on a supporting base, a groove is provided on the inner surface of the housing, the rotor assembly is installed in the groove, a permanent magnet is installed on the inner wall of the housing, and a magnetic steel compression spring is installed between two permanent magnets. The permanent magnet can generate a stable magnetic field, and the magnetic steel compression spring ensures that the permanent magnet is correctly installed in the housing through tension.

[0007] The rotor assembly includes a rotating shaft, one end of which is installed in a vacuum pump, a commutator, an insulating sleeve, an iron core and a ball bearing are installed on the rotating shaft in sequence, an enameled wire is installed in the iron core, insulating side plates are installed at both ends of the iron core, and the ball bearing is installed in the groove. When the brush transmits current to the commutator, the commutator transmits current to the enameled wire, the enameled wire generates a magnetic field, and a rotational torque is generated in the stator assembly. The iron core supports the enameled wire to ensure stable rotation of the enameled wire, while increasing the magnetic permeability of the rotor, improving the electromagnetic torque and efficiency.

[0008] The brush holder assembly includes an outlet sheath and a conductor. The outlet sheath is installed inside a support base. A wiring piece is connected to the outer wall of the outlet sheath. A brush holder is installed inside the outlet sheath. The brush holder is installed on the support base. The conductor passes through a wire groove of the wiring piece and is installed on the brush holder. A sleeve is installed on the outer side of the conductor. The sleeve is sleeved on the conductor. A connector is installed at one end of the conductor. A harness clip is installed on the connector. During operation, the power supply is connected through the connector, and the current is transported to the brush holder along with the conductor.

[0009] The brush holder includes a brush holder body, the brush holder body is installed on a supporting base, the brush holder body is installed inside an outlet sheath, one side of the brush holder body is connected to a circuit board slot, a circuit board is installed in the circuit board slot, one side of the brush holder body is connected to a wire pressing structure, the wire is installed in the wire pressing structure, one side of the brush holder body is connected to an inductor slot, an inductor is installed in the inductor slot, one side of the brush holder body is connected to an installation slot, a brush and a constant force spring are installed in the installation slot, one end of the constant force spring is installed on the brush, the other end of the constant force spring is installed on the inductor slot, a conductive sheet is installed on the other side of the brush holder body, the brush wire of the brush is pressed on the inductor wire at one end of the inductor, and the inductor wire at the other end of the inductor is pressed on the conductive sheet. The wire transports the current to the conductive sheet, the conductive sheet transports the current to the inductor, the inductor can filter high-frequency noise, the inductor passes the filtered DC current to the brush, the brush passes the current to the commutator, the constant force spring can press the brush on the commutator to ensure a stable contact pressure between the brush and the commutator, avoid increased wear of the brush due to loose contact, and increase the service life of the brush.

[0010] The support base includes a base body, the housing is mounted on the base body, the vacuum pump is mounted on the base body, the base body is connected with a shock absorbing groove, the shock absorbing pad is mounted in the shock absorbing groove, the base body is provided with a rotation groove, a second ball bearing and a bearing compression spring are mounted in the rotation groove, the bearing compression spring is pressed on the second ball bearing, the rotating shaft rotates in the second ball bearing, an air inlet pipe is mounted at one end of the base body, an air outlet pipe is mounted at one side of the base body, and a silencer sleeve is mounted at one side of the base body. The silencer sleeve can reduce the noise generated during the operation of the vacuum pump. When negative pressure is generated in the vacuum pump, air will be sucked in from the air inlet pipe and discharged from the air outlet pipe.

[0011] The vacuum pump includes a pump body cover, which is mounted on a base body, a pump chamber upper cover is mounted inside the pump body cover, the pump chamber upper cover is mounted on the base body, a second silencer sleeve is mounted between the pump chamber upper cover and the pump body cover, a pump rotor is mounted on one side of the pump chamber upper cover, blades are mounted in the sliding groove of the pump rotor, a drive sleeve is mounted inside the pump rotor, the drive sleeve is mounted on a rotating shaft, a pump chamber is mounted on the outer side of the pump rotor, a pump chamber lower cover is mounted on one side of the pump chamber, and the pump body cover, the second silencer sleeve, the pump chamber upper cover, the pump rotor, the pump chamber and the pump chamber lower cover are on the same axis. When the shaft rotates, the shaft drives the driving sleeve to rotate, and the driving sleeve drives the pump rotor to rotate. Under the action of centrifugal force, the blades in the sliding groove of the pump rotor are close to the inner wall of the pump chamber to form a closed cavity. On one side of the air inlet pipe, the cavity formed by the blades and the pump chamber is the air inlet cavity. During the rotation of the blades, the air inlet cavity increases to form a negative pressure to suck air from the air inlet pipe. On one side of the air outlet pipe, the cavity formed by the blades and the pump chamber is the exhaust cavity. During the rotation of the blades, the exhaust cavity decreases to discharge air from the air outlet pipe.

[0012] The material of the brush holder body is unsaturated polyester resin.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present invention replaces the original coil spring with a constant force spring. The coil spring will exert a relatively large pressure on the brush in the early stage, which will accelerate the wear of the brush and reduce the life of the vacuum pump. However, when using a constant force spring, the pressure on the brush in the early and late stages is consistent, and the wear of the brush in the early and late stages is uniform, which increases the life of the vacuum pump from 1200h to 1500h, thereby increasing the service life.

[0015] 2. The present invention integrates two small capacitors, one large capacitor and one diode on a circuit board by using a patch process. Only two pins on the circuit board are soldered with the conductive sheet, thus realizing automated production, shortening assembly time and improving production efficiency.

[0016] 3. The present invention changes the thermoplastic material PPS-GF40 into a thermosetting material unsaturated polyester resin, which can withstand a high temperature of 220°C and will not soften or deform, ensuring that the vacuum pump will run continuously for 1 hour without failure when the vacuum pump is continuously braked under extreme working conditions, greatly improving the high temperature resistance of the vacuum pump and the stability of the use of the vacuum pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of a brush holder module of the present invention;

[0018] Figure 2 An exploded view of the brush holder module of the present invention;

[0019] Figure 3 A bottom view of a stator assembly of the present invention;

[0020] Figure 4 is a perspective view of a rotor assembly of the present invention;

[0021] Figure 5 An exploded view of the brush holder assembly of the present invention;

[0022] Figure 6 A top view of the brush holder of the present invention;

[0023] Figure 7 A bottom view of the brush holder of the present invention;

[0024] Figure 8 An exploded view of the support base of the present invention;

[0025] Fig. 9 It is an exploded view of the vacuum pump of the present invention.

[0026] In the figure: 1. Sealing plug; 2. Stator assembly; 201. Casing; 202. Permanent magnet; 203. Magnetic steel compression spring; 204. Groove; 3. Rotor assembly; 301. Rotating shaft; 302. Commutator; 303. Insulating sleeve; 304. Enameled wire; 305. Iron core; 306. Insulating side plate; 307. Ball bearing 1; 4. Brush holder assembly; 401. Connector; 402. Harness clip; 403. Sleeve; 404. Wire; 405. Outlet sheath; 406. Wiring piece; 407. Brush holder; 4071. Brush holder body; 4072. Wire pressing structure; 4073. Circuit board; 4074. Inductor; 4075. Constant force Spring; 4076, brush; 4077, conductive sheet; 4078, mounting groove; 4079, inductor groove; 5, shock-absorbing pad; 6, air outlet sleeve; 7, support base; 701, base body; 702, air inlet pipe; 703, air outlet pipe; 704, shock-absorbing groove; 705, rotating groove; 706, bearing compression spring; 707, ball bearing 2; 708, silencer sleeve 1; 8, mounting sleeve; 9, sealing ring; 10, vacuum pump; 1001, pump chamber lower cover; 1002, pump chamber; 1003, pump rotor; 1004, blades; 1005, drive sleeve; 1006, pump chamber upper cover; 1007, silencer sleeve 2; 1008, pump body cover. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Example: Figure 1-Figure 9 As shown, the present invention provides a technical solution, the brush holder module includes a stator assembly 2, a sealing plug 1 is installed at one end of the stator assembly 2, the stator assembly 2 is rotatably connected to the inside of the stator assembly 2, one end of the rotor assembly 3 is rotatably connected to the support base 7, the stator assembly 2 is installed on the support base 7, a brush holder assembly 4 is installed inside the support base 7, the rotor assembly 3 rotates on the brush holder assembly 4, an air outlet sleeve 6 is installed on one side of the support base 7, a shock-absorbing pad 5 is installed on the support base 7, a mounting sleeve 8 is installed in the through groove of the shock-absorbing pad 5, a vacuum pump 10 is installed at one end of the support base 7, the vacuum pump 10 is installed on the rotor assembly 3, and a sealing ring 9 is installed between the vacuum pump 10 and the support base 7. The stator assembly 2 can generate a stable magnetic field environment. The rotor assembly 3 generates rotational motion by rotating in the magnetic field generated by the stator assembly 2 to realize the conversion of electrical energy into mechanical energy. The brush holder assembly 4 can be energized to generate a magnetic field to rotate the rotor assembly 3. At the same time, it can support and position the brush 4076, press the brush 4076 onto the commutator 302, so that the current is stably conducted between the brush 4076 and the commutator 302 to ensure the normal rotation of the rotor assembly 3. The shock-absorbing pad 5 can absorb and reduce vibration during the startup and operation of the vacuum pump 10 to prevent the vibration from being transmitted to other components of the vacuum pump 10, thereby reducing the impact of noise and vibration on the equipment and extending the service life of the vacuum pump 10. The support base 7 is used to install the stator assembly 2, the rotor assembly 3, the brush holder assembly 4 and the vacuum pump 10. The mounting sleeve 8 installs the shock-absorbing pad 5 on the support base 7. The function of the vacuum pump 10 is to increase the braking force by generating negative pressure.

[0029] The stator assembly 2 includes a housing 201, a sealing plug 1 is mounted at one end of the housing 201, and the other end of the housing 201 is mounted on the support base 7. A groove 204 is provided on the inner surface of the housing 201, and the rotor assembly 3 is mounted in the groove 204. A permanent magnet 202 is mounted on the inner wall of the housing 201, and a magnetic steel compression spring 203 is mounted between the two permanent magnets 202. The permanent magnet 202 can generate a stable magnetic field, and the magnetic steel compression spring 203 ensures that the permanent magnet 202 is correctly installed in the housing 201 through tension.

[0030] The rotor assembly 3 includes a rotating shaft 301, one end of which is installed in the vacuum pump 10, and a commutator 302, an insulating sleeve 303, an iron core 305 and a ball bearing 1 307 are sequentially installed on the rotating shaft 301, an enameled wire 304 is installed in the iron core 305, and insulating side plates 306 are installed at both ends of the iron core 305, and a ball bearing 1 307 is installed in the groove 204. When the brush 4076 transmits current to the commutator 302, the commutator 302 transmits current to the enameled wire 304, the enameled wire 304 generates a magnetic field, and generates a rotation torque in the stator assembly 2, and the iron core 305 supports the enameled wire 304 to ensure the stable rotation of the enameled wire 304, while increasing the magnetic permeability of the rotor, improving the electromagnetic torque and efficiency.

[0031] The brush holder assembly 4 includes an outlet sheath 405 and a wire 404. The outlet sheath 405 is installed inside the support base 7. A wiring piece 406 is connected to the outer wall of the outlet sheath 405. A brush holder 407 is installed inside the outlet sheath 405. The brush holder 407 is installed on the support base 7. The wire 404 passes through the wire groove of the wiring piece 406 and is installed on the brush holder 407. A sleeve 403 is installed on the outer side of the wire 404. The sleeve 403 is sleeved on the wire 404. A connector 401 is installed at one end of the wire 404. A harness clip 402 is installed on the connector 401. During operation, the power supply is turned on through the connector 401, and the current is transported to the brush holder 407 along with the wire 404.

[0032] The brush holder 407 includes a brush holder body 4071, which is mounted on the support base 7. The material of the brush holder body 4071 is unsaturated polyester resin. The brush holder body 4071 is mounted inside the outlet sheath 405. One side of the brush holder body 4071 is connected to a circuit board slot, in which a circuit board 4073 is installed. One side of the brush holder body 4071 is connected to a wire pressing structure 4072, in which the wire 404 is installed. One side of the brush holder body 4071 is connected to an inductor slot 4079, in which a wire 404 is installed. An inductor 4074 is installed, and a mounting groove 4078 is connected to one side of the brush holder body 4071. A brush 4076 and a constant force spring 4075 are installed in the mounting groove 4078. One end of the constant force spring 4075 is installed on the brush 4076, and the other end of the constant force spring 4075 is installed on the inductor groove 4079. A conductive sheet 4077 is installed on the other side of the brush holder body 4071. The brush wire of the brush 4076 is pressed on the inductor wire at one end of the inductor 4074, and the inductor wire at the other end of the inductor 4074 is pressed on the conductive sheet 4077. The conductor 404 transports the current to the conductive sheet 4077, the conductive sheet 4077 transports the current to the inductor 4074, the inductor 4074 can filter high-frequency noise, the inductor passes the filtered DC current to the brush 4076, the brush 4076 passes the current to the commutator 302, the constant force spring 4075 can press the brush 4076 on the commutator 302 to ensure a stable contact pressure between the brush 4076 and the commutator 302, avoid the brush 4076 from being worn out due to loose contact, and increase the service life of the brush 4076.

[0033] The support base 7 includes a base body 701, the housing 201 is mounted on the base body 701, the vacuum pump 10 is mounted on the base body 701, the base body 701 is connected with a shock absorbing groove 704, the shock absorbing pad 5 is mounted in the shock absorbing groove 704, the base body 701 is provided with a rotation groove 705, a ball bearing 2 707 and a bearing compression spring 706 are mounted in the rotation groove 705, the bearing compression spring 706 is pressed on the ball bearing 2 707, the rotating shaft 301 rotates in the ball bearing 2 707, an air inlet pipe 702 is mounted on one end of the base body 701, an air outlet pipe 703 is mounted on one side of the base body 701, and a silencer sleeve 1 708 is mounted on one side of the base body 701. The silencer sleeve 1 708 can reduce the noise generated during the operation of the vacuum pump 10. When negative pressure is generated in the vacuum pump 10, air will be sucked in from the air inlet pipe 702 and discharged from the air outlet pipe 703.

[0034] The vacuum pump 10 includes a pump body cover 1008, which is mounted on the base body 701. A pump chamber cover 1006 is mounted inside the pump body cover 1008. The pump chamber cover 1006 is mounted on the base body 701. A silencer sleeve 1007 is mounted between the pump chamber cover 1006 and the pump body cover 1008. A pump rotor 1003 is mounted on one side of the pump chamber cover 1006. A vane is mounted in the sliding groove of the pump rotor 1003. Plate 1004, a driving sleeve 1005 is installed inside the pump rotor 1003, and the driving sleeve 1005 is installed on the rotating shaft 301. A pump chamber 1002 is installed on the outside of the pump rotor 1003, and a pump chamber lower cover 1001 is installed on one side of the pump chamber 1002. The pump body cover 1008, the silencer sleeve 1007, the pump chamber upper cover 1006, the pump rotor 1003, the pump chamber 1002 and the pump chamber lower cover 1001 are on the same axis. The silencer sleeve 1007 can reduce the noise generated when the vacuum pump 10 is working. When the shaft 301 rotates, the shaft 301 drives the drive sleeve 1005 to rotate, and the drive sleeve 1005 drives the pump rotor 1003 to rotate. Under the action of centrifugal force, the blades 1004 in the sliding groove of the pump rotor 1003 are close to the inner wall of the pump chamber 1002 to form a closed cavity. On one side of the air inlet pipe 702, the cavity formed by the blades 1004 and the pump chamber 1002 is the air inlet cavity. During the rotation of the blades 1004, the air inlet cavity increases to form a negative pressure to suck air from the air inlet pipe 702. On one side of the air outlet pipe 703, the cavity formed by the blades 1004 and the pump chamber 1002 is the exhaust cavity. During the rotation of the blades 1004, the exhaust cavity decreases to discharge air from the air outlet pipe 703.

[0035] Working principle of the present invention:

[0036] During operation, the power supply is turned on through the connector 401, and the current is transported to the conductive sheet 4077 along the wire 404. The conductive sheet 4077 transports the current to the inductor 4074. The inductor 4074 can filter high-frequency noise. The inductor passes the filtered DC current to the brush 4076. The brush 4076 passes the current to the commutator 302. The constant force spring 4075 can press the brush 4076 on the commutator 302 to ensure that a stable contact pressure is maintained between the brush 4076 and the commutator 302, thereby avoiding increased wear of the brush 4076 due to loose contact and increasing the service life of the brush 4076.

[0037] When the brush 4076 transmits current to the commutator 302, the commutator 302 transmits current to the enameled wire 304, the enameled wire 304 generates a magnetic field, the permanent magnet 202 causes the enameled wire 304 to generate a rotation torque, the iron core 305 supports the enameled wire 304, ensures the stable rotation of the enameled wire 304, and at the same time increases the magnetic permeability of the rotor, improves the electromagnetic torque and efficiency, the rotation of the iron core 305 drives the shaft 301 to rotate, the shaft 301 drives the drive sleeve 1005 to rotate, the drive sleeve 1005 drives the pump rotor 1003 to rotate, the pump rotor 1003 Under the action of centrifugal force, the blades 1004 in the sliding groove are tightly attached to the inner wall of the pump chamber 1002 to form an enclosed cavity. On one side of the air inlet pipe 702, the cavity formed by the blades 1004 and the pump chamber 1002 is the air inlet cavity. During the rotation of the blades 1004, the air inlet cavity increases to form a negative pressure to suck air from the air inlet pipe 702. On one side of the air outlet pipe 703, the cavity formed by the blades 1004 and the pump chamber 1002 is the exhaust cavity. During the rotation of the blades 1004, the exhaust cavity decreases to discharge air from the air outlet pipe 703.

[0038] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. An electronic vacuum pump brush holder module, characterized in that: The brush holder module comprises a stator assembly (2), one end of the stator assembly (2) is provided with a sealing plug (1), the inside of the stator assembly (2) is rotatably connected to a rotor assembly (3), one end of the rotor assembly (3) is rotatably connected to a support base (7), the stator assembly (2) is mounted on the support base (7), a brush holder assembly (4) is mounted inside the support base (7), the rotor assembly (3) rotates on the brush holder assembly (4), an air outlet sleeve (6) is mounted on one side of the support base (7), a shock-absorbing pad (5) is mounted on the support base (7), a mounting sleeve (8) is mounted in a through groove of the shock-absorbing pad (5), a vacuum pump (10) is mounted on one end of the support base (7), the vacuum pump (10) is mounted on the rotor assembly (3), and a sealing ring (9) is mounted between the vacuum pump (10) and the support base (7).

2. The electronic vacuum pump brush holder module according to claim 1, characterized in that: The stator assembly (2) comprises a housing (201), the sealing plug (1) is mounted on one end of the housing (201), the other end of the housing (201) is mounted on a support base (7), a groove (204) is provided on the inner surface of the housing (201), the rotor assembly (3) is mounted in the groove (204), a permanent magnet (202) is mounted on the inner wall of the housing (201), and a magnetic steel compression spring (203) is mounted between two permanent magnets (202).

3. The electronic vacuum pump brush holder module according to claim 2, characterized in that: The rotor assembly (3) comprises a rotating shaft (301), one end of which is mounted in the vacuum pump (10), a commutator (302), an insulating sleeve (303), an iron core (305) and a ball bearing (307) being mounted in sequence on the rotating shaft (301), an enameled wire (304) being mounted in the iron core (305), insulating side plates (306) being mounted at both ends of the iron core (305), and the ball bearing (307) being mounted in the groove (204).

4. The electronic vacuum pump brush holder module according to claim 3, characterized in that: The brush holder assembly (4) comprises an outlet sheath (405) and a wire (404); the outlet sheath (405) is installed inside a support base (7); a wiring piece (406) is connected to the outer wall of the outlet sheath (405); a brush holder (407) is installed inside the outlet sheath (405); the brush holder (407) is installed on the support base (7); the wire (404) passes through a wire groove of the wiring piece (406) and is installed on the brush holder (407); a sleeve (403) is installed on the outer side of the wire (404); the sleeve (403) is sleeved on the wire (404); a connector (401) is installed at one end of the wire (404); and a wiring harness clip (402) is installed on the connector (401).

5. The electronic vacuum pump brush holder module according to claim 4, characterized in that: The brush holder (407) comprises a brush holder body (4071), the brush holder body (4071) is mounted on a support base (7), the brush holder body (4071) is mounted inside an outlet wire sheath (405), one side of the brush holder body (4071) is connected to a circuit board slot, a circuit board (4073) is mounted in the circuit board slot, one side of the brush holder body (4071) is connected to a wire pressing structure (4072), the wire (404) is mounted in the wire pressing structure (4072), one side of the brush holder body (4071) is connected to an inductor slot (4079), an inductor (4074) is mounted in the inductor slot (4079), ), one side of the brush holder body (4071) is connected to a mounting groove (4078), a brush (4076) and a constant force spring (4075) are installed in the mounting groove (4078), one end of the constant force spring (4075) is installed on the brush (4076), and the other end of the constant force spring (4075) is installed on the inductor groove (4079), and a conductive sheet (4077) is installed on the other side of the brush holder body (4071), the brush wire of the brush (4076) is pressed on the inductor wire at one end of the inductor (4074), and the inductor wire at the other end of the inductor (4074) is pressed on the conductive sheet (4077).

6. The electronic vacuum pump brush holder module according to claim 5, characterized in that: The support base (7) comprises a base body (701), the housing (201) is mounted on the base body (701), the vacuum pump (10) is mounted on the base body (701), a shock absorbing groove (704) is connected to the base body (701), the shock absorbing pad (5) is mounted in the shock absorbing groove (704), a rotating groove (705) is opened on the base body (701), and a A second ball bearing (707) and a bearing compression spring (706), wherein the bearing compression spring (706) is pressed on the second ball bearing (707), and the rotating shaft (301) rotates in the second ball bearing (707). An air inlet pipe (702) is installed at one end of the base body (701), an air outlet pipe (703) is installed at one side of the base body (701), and a silencer sleeve (708) is installed at one side of the base body (701).

7. The electronic vacuum pump brush holder module according to claim 6, characterized in that: The vacuum pump (10) includes a pump body cover (1008), wherein the pump body cover (1008) is mounted on a base body (701), a pump chamber upper cover (1006) is mounted inside the pump body cover (1008), the pump chamber upper cover (1006) is mounted on the base body (701), a silencer sleeve 2 (1007) is mounted between the pump chamber upper cover (1006) and the pump body cover (1008), a pump rotor (1003) is mounted on one side of the pump chamber upper cover (1006), and a pump rotor (1003) is mounted in a sliding groove. The pump rotor (1003) is provided with a driving sleeve (1005) installed inside, and the driving sleeve (1005) is installed on the rotating shaft (301). The pump rotor (1003) is provided with a pump chamber (1002) installed outside, and a pump chamber lower cover (1001) is installed on one side of the pump chamber (1002). The pump body cover (1008), the silencer sleeve (1007), the pump chamber upper cover (1006), the pump rotor (1003), the pump chamber (1002) and the pump chamber lower cover (1001) are located on the same axis.

8. The electronic vacuum pump brush holder module according to claim 7, characterized in that: The material of the brush holder body (4071) is unsaturated polyester resin.

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