CN220457814U - Motor electromagnetic shielding structure of electronic water pump - Google Patents
Motor electromagnetic shielding structure of electronic water pump Download PDFInfo
- Publication number
- CN220457814U CN220457814U CN202322312302.XU CN202322312302U CN220457814U CN 220457814 U CN220457814 U CN 220457814U CN 202322312302 U CN202322312302 U CN 202322312302U CN 220457814 U CN220457814 U CN 220457814U
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- China
- Prior art keywords
- motor
- end cover
- rear end
- cover assembly
- plate
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 230000017525 heat dissipation Effects 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims description 22
- 229920003023 plastic Polymers 0.000 claims description 16
- 239000004033 plastic Substances 0.000 claims description 16
- 230000005855 radiation Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 6
- 239000000446 fuel Substances 0.000 abstract description 4
- 239000007769 metal material Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
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- Motor Or Generator Frames (AREA)
Abstract
The utility model relates to a motor electromagnetic shielding structure of an electronic water pump, which comprises a motor shell, a motor stator, a front end cover assembly, a rear end cover assembly, a motor rotor, a control board, a front end cover bearing, a rear end cover bearing and a heat dissipation plate, wherein the motor shell is arranged on the motor stator; the motor comprises a motor stator, a motor shell, a motor end cover assembly, a motor shell, a front shielding plate, a rear shielding plate and a rear shielding plate. The utility model can effectively solve the electromagnetic interference problem of the motor on the basis of meeting the medium insulation requirement of a fuel cell system. The motor stator is completely sealed by the front shielding plate and the rear shielding plate which are made of metal materials, so that the motor stator cannot generate electromagnetic interference on electric devices except shielding and circuit boards inside the pump body, and the motor stator has the advantages of simple structure, convenience in operation and low manufacturing cost and has a good shielding effect.
Description
Technical Field
The utility model belongs to the technical field of electronic water pumps, and particularly discloses a motor electromagnetic shielding structure of an electronic water pump.
Background
Currently, in order to meet the dielectric insulation of an electronic water pump required by a fuel cell system, engineering plastics are generally added between a shell and a motor end cover for insulation in the prior art. However, the water pump motor can generate electromagnetic radiation in the working process, and metal parts contacted with the shell are required to be shielded at two ends of the motor, so that the requirements of the two are contradictory.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provide a motor electromagnetic shielding structure of an electronic water pump, which can meet the dielectric insulation requirement and solve the electromagnetic interference problem.
According to the technical scheme provided by the utility model, the motor electromagnetic shielding structure of the electronic water pump comprises a motor shell, a motor stator, a front end cover assembly, a rear end cover assembly, a motor rotor, a control board, a front end cover bearing, a rear end cover bearing and a heat dissipation plate; a front end cover assembly is fixed at the front end part of the motor shell, a front end cover bearing is arranged in the front end cover assembly, a rear end cover assembly is fixed at the rear end part of the motor shell, a rear end cover bearing is arranged in the rear end cover assembly, a motor shaft is arranged in an inner ring of the front end cover bearing and an inner ring of the rear end cover bearing, and a motor rotor is fixed on the motor shaft; the front end cover assembly, the motor shell and the rear end cover assembly are matched to form a sealed cavity, a motor stator is arranged in the sealed cavity, and the motor stator is matched with the motor rotor; the rear end cover assembly is provided with a heat radiation plate, the rear of the heat radiation plate is provided with a control plate, the front end face of the heat radiation plate is in contact with the rear end face of the rear end cover assembly, and the front end face of the control plate is in contact with the rear end face of the heat radiation plate;
the motor comprises a motor stator, a motor shell, a motor end cover assembly, a motor shell, a front shielding plate, a rear shielding plate and a rear shielding plate.
Preferably, the front end cover assembly comprises a front end metal cover and a front end plastic flange, and the front end metal cover is installed in the front end plastic flange.
Preferably, the rear end cover assembly comprises a rear end metal cover and a rear end plastic flange, and the rear end metal cover is installed in the rear end plastic flange.
The utility model has the following advantages:
1. on the basis of medium insulation meeting the requirements of a fuel cell system, the utility model can effectively solve the electromagnetic interference problem of the motor by adding the front shielding plate and the rear shielding plate which are made of metal materials and are in direct contact with the motor shell on two sides of the motor stator.
2. The motor stator is completely sealed by the front shielding plate and the rear shielding plate which are made of metal materials, so that the motor stator cannot generate electromagnetic interference on electric devices except shielding and circuit boards inside the pump body, and the motor stator has the advantages of simple structure, convenience in operation and low manufacturing cost and has a good shielding effect.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Detailed Description
The utility model will be further illustrated with reference to specific examples.
The utility model relates to a motor electromagnetic shielding structure of an electronic water pump, which is shown in figure 1, and comprises a motor shell 1, a motor stator 2, a front end cover assembly 3, a rear end cover assembly 4, a motor rotor 5, a control board 6, a front end cover bearing 7, a rear end cover bearing 8 and a heat dissipation plate 9; a front end cover assembly 3 is fixed at the front end part of the motor shell 1, a front end cover bearing 7 is installed in the front end cover assembly 3, a rear end cover assembly 4 is fixed at the rear end part of the motor shell 1, a rear end cover bearing 8 is installed in the rear end cover assembly 4, a motor shaft is installed in the inner ring of the front end cover bearing 7 and the inner ring of the rear end cover bearing 8, and a motor rotor 5 is fixed on the motor shaft; the front end cover assembly 3, the motor shell 1 and the rear end cover assembly 4 are matched to form a sealed cavity, a motor stator 2 is arranged in the sealed cavity, and the motor stator 2 is matched with the motor rotor 5; a heat radiation plate 9 is arranged at the rear of the rear end cover assembly 4, a control plate 6 is arranged at the rear of the heat radiation plate 9, the front end face of the heat radiation plate 9 is in contact with the rear end face of the rear end cover assembly 4, and the front end face of the control plate 6 is in contact with the rear end face of the heat radiation plate 9;
the motor further comprises a front shielding plate 10 and a rear shielding plate 11, wherein the front shielding plate 10 is embedded in the inner wall of the motor housing 1 between the corresponding motor stator 2 and the front end cover assembly 3, and the rear shielding plate 11 is embedded in the inner wall of the motor housing 1 between the corresponding motor stator 2 and the rear end cover assembly 4.
The front end cover assembly 3 comprises a front end metal cover 31 and a front end plastic flange plate 32, wherein the front end metal cover 31 is installed in the front end plastic flange plate 32.
The rear end cap assembly 4 includes a rear end metal cap 41 and a rear end plastic flange 42, the rear end metal cap 41 being mounted within the rear end plastic flange 42.
In the utility model, the inside of the motor shell 1 is cylindrical, and two sides of the motor shell are open. The front end cover component 3 is a metal plastic-coated piece and is fixed on the motor shell 1 through the front end plastic flange plate 32, the front end cover component 3 and the motor shell 1 form a cavity with a closed front side and an open rear side, the front end cover component 3 separates the motor stator 2 and the motor rotor 5, and the front end metal cover 31 in the front end cover component 3 is in sealing connection with the rear end metal cover 41 in the rear end cover component 4, so that cooling liquid is insulated from the motor shell 1. The rear end cover assembly 4 is a metal plastic-coated piece and is fixed on the motor housing 1 through a rear end plastic flange 42, and a rear end metal cover 41 in the rear end cover assembly 4, the motor housing 1 and a front end metal cover 31 in the front end cover assembly 3 are matched to enclose a sealing cavity. The motor stator 2 is located in the sealed cavity.
The front shielding plate 10 is made of thin-wall stainless steel materials by bending, is embedded in the inner wall of the motor shell 1, meets the grounding requirement by being in close contact with the motor shell 1, and is positioned between the motor stator 2 and the front end cover assembly 3; the rear shielding plate 11 is made of a thin-wall stainless steel material by bending, is embedded in the inner wall of the motor housing 1, meets the grounding requirement by being in close contact with the motor housing 1, and is positioned between the motor stator 2 and the rear end cover assembly 4.
The utility model seals the internal cooling liquid through the sealing cavity formed by the front end metal cover 31 in the front end cover assembly 3 and the rear end metal cover 41 in the rear end cover assembly 4, thereby meeting the medium insulation required by the fuel system. The motor shell 1, the front shielding plate 10 and the rear shielding plate 11 form a closed metal cavity, and are grounded together, so that the motor stator 2 is completely closed in the cavity, and electromagnetic interference generated by the motor stator 2 is shielded.
Claims (3)
1. The motor electromagnetic shielding structure of the electronic water pump comprises a motor shell (1), a motor stator (2), a front end cover assembly (3), a rear end cover assembly (4), a motor rotor (5), a control board (6), a front end cover bearing (7), a rear end cover bearing (8) and a heat dissipation plate (9); a front end cover assembly (3) is fixed at the front end part of the motor shell (1), a front end cover bearing (7) is installed in the front end cover assembly (3), a rear end cover assembly (4) is fixed at the rear end part of the motor shell (1), a rear end cover bearing (8) is installed in the rear end cover assembly (4), a motor shaft is installed in the inner ring of the front end cover bearing (7) and the inner ring of the rear end cover bearing (8), and a motor rotor (5) is fixed on the motor shaft; the front end cover assembly (3), the motor shell (1) and the rear end cover assembly (4) are matched to form a sealed cavity, a motor stator (2) is arranged in the sealed cavity, and the motor stator (2) is matched with the motor rotor (5); a heat radiation plate (9) is arranged at the rear of the rear end cover assembly (4), a control plate (6) is arranged at the rear of the heat radiation plate (9), the front end face of the heat radiation plate (9) is in contact with the rear end face of the rear end cover assembly (4), and the front end face of the control plate (6) is in contact with the rear end face of the heat radiation plate (9);
the method is characterized in that: the motor comprises a motor stator (2), a front end cover assembly (3) and a motor shell (1), and is characterized by further comprising a front shielding plate (10) and a rear shielding plate (11), wherein the front shielding plate (10) is embedded in the inner wall of the motor shell (1) between the corresponding motor stator (2) and the front end cover assembly (3), and the rear shielding plate (11) is embedded in the inner wall of the motor shell (1) between the corresponding motor stator (2) and the rear end cover assembly (4).
2. The motor electromagnetic shielding structure of an electronic water pump as claimed in claim 1, wherein: the front end cover assembly (3) comprises a front end metal cover (31) and a front end plastic flange plate (32), and the front end metal cover (31) is installed in the front end plastic flange plate (32).
3. The motor electromagnetic shielding structure of an electronic water pump as claimed in claim 1, wherein: the rear end cover assembly (4) comprises a rear end metal cover (41) and a rear end plastic flange plate (42), and the rear end metal cover (41) is installed in the rear end plastic flange plate (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322312302.XU CN220457814U (en) | 2023-08-25 | 2023-08-25 | Motor electromagnetic shielding structure of electronic water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322312302.XU CN220457814U (en) | 2023-08-25 | 2023-08-25 | Motor electromagnetic shielding structure of electronic water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220457814U true CN220457814U (en) | 2024-02-06 |
Family
ID=89739243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322312302.XU Active CN220457814U (en) | 2023-08-25 | 2023-08-25 | Motor electromagnetic shielding structure of electronic water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220457814U (en) |
-
2023
- 2023-08-25 CN CN202322312302.XU patent/CN220457814U/en active Active
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