CN118074440A - Antistatic structure of generator and antistatic automobile-used generator - Google Patents
Antistatic structure of generator and antistatic automobile-used generator Download PDFInfo
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- CN118074440A CN118074440A CN202410197929.1A CN202410197929A CN118074440A CN 118074440 A CN118074440 A CN 118074440A CN 202410197929 A CN202410197929 A CN 202410197929A CN 118074440 A CN118074440 A CN 118074440A
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- generator
- assembly
- guide plate
- antistatic
- bearing
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- 238000005452 bending Methods 0.000 claims description 7
- 230000000670 limiting effect Effects 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 4
- 230000003068 static effect Effects 0.000 abstract description 39
- 230000001105 regulatory effect Effects 0.000 abstract description 23
- 239000004519 grease Substances 0.000 abstract description 11
- 229910000831 Steel Inorganic materials 0.000 abstract description 8
- 239000010959 steel Substances 0.000 abstract description 8
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 5
- 230000003628 erosive effect Effects 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 230000015556 catabolic process Effects 0.000 description 9
- 230000005611 electricity Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 230000005686 electrostatic field Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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- Motor Or Generator Frames (AREA)
Abstract
The anti-static structure of the generator is arranged on the generator assembly, the anti-static structure comprises a first anti-static structure or/and a second anti-static structure, the first anti-static structure comprises a collecting ring, the collecting ring is connected with the generator assembly, the second anti-static structure comprises a guide plate component, the guide plate component is connected with the generator assembly, the collecting ring and the guide plate component can be grounded to discharge static charges of the generator assembly to the ground, and after the static charges are accumulated to a certain degree, the bearing grease film is prevented from being broken down due to instantaneous static discharge, the inner ring and the outer ring of the bearing and the bearing steel ball are prevented from being damaged, bearing electric erosion is prevented from being caused, the service life of the generator is prolonged, and meanwhile, the failure of a voltage regulating chip of the generator is prevented. The invention also provides an antistatic automobile generator which comprises the antistatic structure of the generator, and the problem of motor failure caused by bearing electric corrosion can be avoided.
Description
Technical Field
The invention belongs to the field of automotive generators, and particularly relates to an antistatic structure of a generator and an antistatic automotive generator.
Background
The alternator is used as a main power supply part of an automobile, the working principle of the alternator is that mechanical energy is converted into electric energy, a belt drives a motor belt pulley of the motor to rotate during operation, the belt pulley is connected with a motor rotor, the rotor is matched with a motor bearing, and the motor is driven to rotate through the belt pulley. The rotor and the stator generate an induction magnetic field in the running process, so that the rotor and the stator are output outwards.
In the running process of the motor, static electricity is generated by friction between a belt and a belt pulley of the motor due to high-speed running of the motor, static electricity charges are transmitted to a rotor rotating shaft through the belt pulley (the belt pulley is connected with a shaft through a metal steel piece), the charges are transferred to a bearing inner ring through the rotor rotating shaft due to contact between the rotor rotating shaft and a bearing, the bearing inner ring cannot be grounded, bearing grease resistance values at gaps between the bearing inner ring and an outer ring are higher, electric conduction cannot be realized, after the static electricity charges are accumulated to a certain extent, an instantaneous static electricity discharge can lead to breakdown of a bearing grease film, damage of the bearing inner ring and the outer ring and a bearing steel ball, so that bearing electric corrosion is caused, the service life of a generator is reduced, the output power of the generator is influenced, and due to shaft end electrification, the shaft end charges are coupled into a stator winding coil through a rotor magnetic field, and then transmitted to a generator voltage regulating chip through the stator winding coil, so that the generator voltage regulating chip fails.
Disclosure of Invention
The invention is to solve the above problems, and aims to provide an antistatic structure of a generator and an antistatic vehicle generator which can effectively release static charges at the shaft end of a rotating shaft, can avoid bearing electric erosion caused by breakdown of a bearing grease film and can avoid failure of a voltage regulating chip of the generator, and the technical scheme adopted by the invention is as follows:
The invention provides an antistatic structure of a generator, which comprises a generator assembly and is characterized in that: the antistatic structure is arranged on the generator assembly and comprises a first antistatic structure or/and a second antistatic structure; the first antistatic structure comprises a collecting ring, and the collecting ring is connected with the generator assembly; the second antistatic structure comprises a guide plate assembly, and the guide plate assembly is connected with the generator assembly.
In the antistatic structure of the generator provided by the invention, the structure can also have the following characteristics: the generator assembly comprises a rotor assembly, the rotor assembly comprises a bearing, a lead is arranged on the collecting ring, and the lead is abutted with the bearing.
In the antistatic structure of the generator provided by the invention, the structure can also have the following characteristics: the lead is provided with a bending convex section which is abutted with the inner ring of the bearing.
In the antistatic structure of the generator provided by the invention, the structure can also have the following characteristics: the collecting ring is connected with a grounding insert.
In the antistatic structure of the generator provided by the invention, the structure can also have the following characteristics: the generator assembly further comprises a motor end cover, the guide plate assembly is arranged on the motor end cover, and the guide plate assembly is made of conductive metal.
In the antistatic structure of the generator provided by the invention, the structure can also have the following characteristics: the motor end cover is provided with a mounting groove which is matched with the guide plate assembly, and the guide plate assembly is arranged in the mounting groove.
In the antistatic structure of the generator provided by the invention, the structure can also have the following characteristics: the guide plate assembly is arc-shaped and comprises a guide plate body, the guide plate body comprises a first arc-shaped plate and a second arc-shaped plate connected with the first arc-shaped plate, the first arc-shaped plate is arranged on the end face of the motor end cover, and the second arc-shaped plate is arranged on the side face of the motor end cover.
In the antistatic structure of the generator provided by the invention, the structure can also have the following characteristics: the guide plate assembly further comprises a limiting unit, the limiting unit comprises a positioning hole arranged on the guide plate body and a positioning protrusion arranged on the motor end cover, and the positioning hole is matched with the positioning protrusion.
In the antistatic structure of the generator provided by the invention, the structure can also have the following characteristics: the motor end cover is provided with a grounding screw mounting groove, the two ends of the guide plate body are provided with connecting pieces, the connecting pieces are matched with the grounding screw mounting groove, and the connecting pieces are fastened in the grounding screw mounting groove through grounding screws.
The invention also provides an antistatic automobile generator which has the characteristics, and the antistatic automobile generator comprises the antistatic structure.
The invention has the technical effects that: the anti-static structure of the generator is arranged on the generator assembly, the anti-static structure comprises a first anti-static structure or/and a second anti-static structure, the first anti-static structure comprises a collecting ring, the collecting ring is connected with the generator assembly, the second anti-static structure comprises a guide plate component, the guide plate component is connected with the generator assembly, the collecting ring and the guide plate component can be grounded to discharge static charges of the generator assembly to the ground, and after the static charges are accumulated to a certain degree, the bearing grease film is prevented from being broken down due to instantaneous static discharge, the inner ring and the outer ring of the bearing and the bearing steel ball are prevented from being damaged, bearing electric erosion is prevented from being caused, the service life of the generator is prolonged, and meanwhile, the failure of a voltage regulating chip of the generator is prevented. The invention also provides an antistatic automobile generator which comprises the antistatic structure of the generator, and the problem of motor failure caused by bearing electric corrosion can be avoided.
Therefore, the anti-static structure of the generator and the anti-static vehicle generator provided by the invention can effectively release the static charge at the shaft end of the rotating shaft, can avoid bearing electric erosion caused by breakdown of a bearing grease film, and can avoid failure of a voltage regulating chip of the generator.
Drawings
The present specification includes the following drawings, the contents of which are respectively:
FIG. 1 is a schematic diagram of a rotor assembly in an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a rotor assembly in an embodiment of the invention;
FIG. 3 is a schematic view of a slip ring according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view of a slip ring in an embodiment of the invention;
FIG. 5 is a schematic illustration of a motor end cap in accordance with an embodiment of the present invention;
FIG. 6 is a second schematic structural view of a motor end cap according to an embodiment of the present invention;
FIG. 7 is a schematic structural view of an antistatic automotive generator in accordance with an embodiment of the present invention;
Fig. 8 is a cross-sectional view of an antistatic automotive generator in an embodiment of the invention.
Marked in the figure as: 10-collecting ring, 11-lead wire, 12-bending protruding section, 13-grounding insert, 20-deflector component, 21-deflector body, 211-first arc plate, 212-second arc plate, 22-spacing unit, 221-locating hole, 222-locating protrusion, 23-connection piece, 30-rotor assembly, 31-bearing, 32-rotor, 33-rotating shaft, 34-pulley, 40-motor end cover, 41-mounting groove, 42-grounding screw mounting groove, 43-grounding screw.
Detailed Description
The following detailed description of the embodiments of the invention, given by way of example only, is presented in the accompanying drawings to aid those skilled in the art in a more complete, accurate and thorough understanding of the inventive concepts and aspects of the invention, and to facilitate their practice.
FIG. 1 is a schematic diagram of a rotor assembly in an embodiment of the present invention; FIG. 2 is a cross-sectional view of a rotor assembly in an embodiment of the invention; FIG. 3 is a schematic view of a slip ring according to an embodiment of the present invention; FIG. 4 is a cross-sectional view of a slip ring in an embodiment of the invention; FIG. 5 is a schematic illustration of a motor end cap in accordance with an embodiment of the present invention; FIG. 6 is a second schematic structural view of a motor end cap according to an embodiment of the present invention; FIG. 7 is a schematic structural view of an antistatic automotive generator in accordance with an embodiment of the present invention; fig. 8 is a cross-sectional view of an antistatic automotive generator in an embodiment of the invention.
As shown in fig. 1 to 8, the antistatic structure of the generator provided by the invention comprises a first antistatic structure or/and a second antistatic structure, wherein the first antistatic structure comprises a collecting ring 10, the second antistatic structure comprises a deflector assembly 20, and the antistatic structure of the generator provided by the invention is arranged on a generator assembly of the generator.
As shown in fig. 1 and 2, the generator assembly includes a rotor assembly 30, and the rotor assembly 30 includes a bearing 31, a rotor 32, a rotating shaft 33, and a pulley 34. The rotor 32 is sleeved on the rotating shaft 33, the bearing 31 is sleeved at the end part of the rotating shaft 33 and is positioned at two sides of the rotor 32, and the belt pulley 34 is arranged at one end of the rotating shaft 33. The pulley 34 can drive the rotor 32 to rotate through the rotating shaft 33, static electricity is generated by friction between the belt and the pulley 34, and the static electricity is transferred to the inner ring of the bearing 31 through the rotating shaft 33, so that the static electricity charges are accumulated in the inner ring of the bearing 31.
As shown in fig. 3 and 4, the collecting ring 10 is sleeved at the end of the rotating shaft 33, the collecting ring 10 is matched with one end of the rotating shaft 33 far away from the belt wheel 34, the collecting ring 10 is sleeved at one end of the rotating shaft 33 far away from the belt wheel 34, and the bearing 31 is sleeved on the collecting ring 10. The lead 11 of the slip ring 10 has a bent convex section 12, the bent convex section 12 is abutted against the inner ring of the bearing 31, and the slip ring 10 is connected with a grounding insert 13, thereby grounding the slip ring 10. The bending convex section 12 can release static charges at the shaft end of the rotating shaft 33 and the inner ring of the bearing 31 to the ground, so that the static charges are prevented from accumulating at the shaft end of the rotating shaft 33 and the inner ring of the bearing 31, the bearing grease oil film is prevented from being broken down due to instantaneous static discharge after the static charges accumulate to a certain degree, the inner ring and the outer ring of the bearing 31 and the steel balls are damaged, the bearing 31 is prevented from being corroded electrically, the service life of a generator is prolonged, and meanwhile, the failure of a voltage regulating chip of the generator is prevented.
As shown in fig. 5 and 6, the generator assembly further includes a motor end cover 40, the baffle assembly 20 is disposed on the motor end cover 40, the baffle assembly 20 is made of metal, and the motor end cover 40 is made of injection molding plastic.
The motor end cover 40 is provided with a mounting groove 41, the mounting groove 41 is matched with the guide plate assembly 20, and the guide plate assembly 20 is arranged in the mounting groove 41. The mounting groove 41 is located in the Pin connection position of the voltage regulating chip of the generator, and the electronic components of the generator, including diodes, the voltage regulating chip of the generator and the like, are located at the rear end of the generator, and the rear end of the generator contains more wiring harnesses, plastic pipelines, air inlet, air exhaust ports and other parts which are easy to generate or adsorb static electricity, especially in the Pin connection position of the voltage regulating chip of the generator, so that the mounting groove 41 is arranged in the Pin connection position of the voltage regulating chip of the generator, and static charges at the rear end of the generator can be effectively further eliminated.
The guide plate assembly 20 is arc-shaped, the guide plate assembly 20 comprises a guide plate body 21, the guide plate body 21 comprises a first arc-shaped plate 211 and a second arc-shaped plate 212, the first arc-shaped plate 211 is connected with the second arc-shaped plate 212, the first arc-shaped plate 211 is arranged on the end face of the motor end cover 40, the second arc-shaped plate 212 is arranged on the side face of the motor end cover 40, so that the contact area with the motor end cover 40 is increased, the adsorption elimination effect on electrostatic charges is improved, the connection part of the first arc-shaped plate 211 and the second arc-shaped plate 212 is in a tip design, the electrostatic charges around the motor end cover 40 are further concentrated around the guide plate assembly 20 by utilizing a charge distribution rule, the electrostatic field intensity around a generator voltage regulating chip is further reduced, and breakdown failure of the generator voltage regulating chip is avoided.
The baffle assembly 20 further comprises a limiting unit 22, the limiting unit 22 comprises a positioning hole 221 and a positioning protrusion 222, the positioning hole 221 is formed in the baffle body 21, the positioning protrusion 222 is arranged on the motor end cover 40, the positioning hole 221 is matched with the positioning protrusion 222, and therefore the baffle body 21 installed in the installation groove 41 is limited, the overall dimension of the motor end cover 40 is unchanged after the baffle body 21 is installed, the fixing reliability of the baffle body 21 is guaranteed, and the assembly of a generator is not affected. The positioning holes 221 are uniformly distributed on the first arc-shaped plate 211 and the second arc-shaped plate 212, the positioning protrusions 222 are uniformly distributed on the end face and the side face of the motor end cover 40, and the positions of the positioning holes 221 and the positioning protrusions 222 are in one-to-one correspondence, so that the limiting effect on the deflector body 21 is enhanced.
The motor end cover 40 is provided with two grounding screw mounting grooves 42, two ends of the guide plate body 21 are provided with connecting pieces 23, the connecting pieces 23 are matched with the grounding screw mounting grooves 42, when the guide plate body 21 is clamped in the mounting grooves 41, the connecting pieces 23 at two ends of the guide plate body 21 are respectively clamped in the two grounding screw mounting grooves 42, and the connecting pieces 23 are fastened in the grounding screw mounting grooves 42 through the grounding screws 43, so that the guide plate body 21 is grounded, static charges on the periphery of the motor end cover 40 are released to the ground after the static charges are further concentrated around the guide plate body 21, the static field intensity around the voltage regulating chip of the generator is further reduced, and breakdown failure of the voltage regulating chip of the generator is avoided.
As shown in fig. 7 and 8, the invention also provides an antistatic vehicle generator which comprises the antistatic structure, wherein the static charges at the shaft end of the rotating shaft 33 and the inner ring of the bearing 31 can be discharged oppositely through the bending convex section 12 of the lead 11, so that the static charges are prevented from accumulating at the shaft end of the rotating shaft 33 and the inner ring of the bearing 31, and the damage to the inner ring and the outer ring of the bearing 31 and the steel balls caused by the breakdown of a bearing grease oil film due to instantaneous static discharge after the static charges accumulate to a certain degree is avoided, and the electric corrosion of the bearing 31 is avoided, thereby prolonging the service life of the generator and avoiding the failure of a voltage regulating chip of the generator; the current deflector body 21 can be grounded, so that the static charges around the motor end cover 40 are further concentrated around the current deflector body 21 and then discharged to the ground, thereby further reducing the electrostatic field intensity around the voltage regulating chip of the generator and avoiding breakdown failure of the voltage regulating chip of the generator.
Effects and effects of the examples
The anti-static structure of the generator is arranged on the generator assembly, the anti-static structure comprises a first anti-static structure or/and a second anti-static structure, the first anti-static structure comprises a collecting ring 10, the collecting ring 10 is connected with the generator assembly, the second anti-static structure comprises a guide plate assembly 20, the guide plate assembly 20 is connected with the generator assembly, the collecting ring 10 and the guide plate assembly 20 can be grounded to release static charges of the generator assembly to the ground, and the problem that bearing grease oil films break down, bearing inner and outer rings and bearing steel balls are damaged due to transient static discharge after the static charges are accumulated to a certain degree, so that the service life of the generator is prolonged, and meanwhile, the failure of a voltage regulating chip of the generator is avoided.
The static charges at the shaft end of the rotating shaft 33 and the inner ring of the bearing 31 are released to the ground through the bending convex section 12 of the lead 11, so that the static charges are prevented from accumulating at the shaft end of the rotating shaft 33 and the inner ring of the bearing 31, the bearing grease oil film is prevented from being broken down due to instantaneous static discharge after the static charges are accumulated to a certain degree, the inner ring and the outer ring of the bearing 31 and the steel balls are damaged, the bearing 31 is prevented from being corroded electrically, the service life of a generator is prolonged, and meanwhile, the failure of a voltage regulating chip of the generator is prevented.
Through the grounding of the deflector body 21, after the static charges around the motor end cover 40 are further concentrated around the deflector body 21, the static charges are released to the ground, so that the electrostatic field intensity around the generator voltage regulating chip is further reduced, and the breakdown failure of the generator voltage regulating chip is avoided.
The invention also provides an antistatic automobile generator which comprises the antistatic structure of the generator, and the problem of motor failure caused by bearing electric corrosion can be avoided.
Therefore, the anti-static structure of the generator and the anti-static vehicle generator provided by the invention can effectively release the static charge at the shaft end of the rotating shaft, can avoid bearing electric erosion caused by breakdown of a bearing grease film, and can avoid failure of a voltage regulating chip of the generator.
The invention is described above by way of example with reference to the accompanying drawings. It will be clear that the invention is not limited to the embodiments described above. As long as various insubstantial improvements are made using the method concepts and technical solutions of the present invention; or the invention is not improved, and the conception and the technical scheme are directly applied to other occasions and are all within the protection scope of the invention.
Claims (10)
1. An antistatic structure of a generator, the generator comprising a generator assembly, characterized in that:
the antistatic structure is arranged on the generator assembly and comprises a first antistatic structure or/and a second antistatic structure;
The first antistatic structure comprises a collecting ring (10), and the collecting ring (10) is connected with the generator assembly;
The second antistatic structure comprises a deflector assembly (20), and the deflector assembly (20) is connected with the generator assembly.
2. The antistatic structure of a generator according to claim 1, wherein:
the generator assembly comprises a rotor assembly (30), the rotor assembly (30) comprises a bearing (31), a lead (11) is arranged on the collecting ring (10), and the lead (11) is abutted with the bearing (31).
3. The antistatic structure of a generator according to claim 2, wherein:
The lead (11) is provided with a bending convex section (12), and the bending convex section (12) is abutted with the inner ring of the bearing (31).
4. A generator antistatic structure as claimed in claim 3, wherein:
the collecting ring (10) is connected with a grounding insert (23).
5. An antistatic structure of a generator according to claims 1 to 4, characterized in that:
The generator assembly further comprises a motor end cover (40), the guide plate assembly (20) is arranged on the motor end cover (40), and the guide plate assembly (20) is made of conductive metal.
6. The antistatic structure of a generator according to claim 5, wherein:
the motor end cover (40) is provided with a mounting groove (41), the mounting groove (41) is matched with the guide plate assembly (20), and the guide plate assembly (20) is arranged in the mounting groove (41).
7. The antistatic structure of a generator according to claim 6, wherein:
The guide plate assembly (20) is arc-shaped and comprises a guide plate body (21), the guide plate body (21) comprises a first arc-shaped plate (211) and a second arc-shaped plate (212) connected with the first arc-shaped plate (211), the first arc-shaped plate (211) is arranged on the end face of the motor end cover (40), and the second arc-shaped plate (212) is arranged on the side face of the motor end cover (40).
8. The antistatic structure of a generator according to claim 7, wherein:
The guide plate assembly (20) further comprises a limiting unit (22), the limiting unit (22) comprises a positioning hole (221) formed in the guide plate body (21) and a positioning protrusion (222) formed in the motor end cover (40), and the positioning hole (221) is matched with the positioning protrusion (222).
9. The antistatic structure of a generator according to claim 8, wherein:
The motor end cover (40) is provided with a grounding screw mounting groove (42), connecting pieces (23) are arranged at two ends of the guide plate body (21), the connecting pieces (23) are matched with the grounding screw mounting groove (42), and the connecting pieces (23) are fastened in the grounding screw mounting groove (42) through grounding screws (43).
10. An antistatic automotive generator comprising an antistatic structure according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410197929.1A CN118074440A (en) | 2024-02-22 | 2024-02-22 | Antistatic structure of generator and antistatic automobile-used generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410197929.1A CN118074440A (en) | 2024-02-22 | 2024-02-22 | Antistatic structure of generator and antistatic automobile-used generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118074440A true CN118074440A (en) | 2024-05-24 |
Family
ID=91110749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410197929.1A Pending CN118074440A (en) | 2024-02-22 | 2024-02-22 | Antistatic structure of generator and antistatic automobile-used generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118074440A (en) |
-
2024
- 2024-02-22 CN CN202410197929.1A patent/CN118074440A/en active Pending
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