CN221423482U - Driving circuit board mounting structure of electronic water pump and electronic water pump using same - Google Patents
Driving circuit board mounting structure of electronic water pump and electronic water pump using same Download PDFInfo
- Publication number
- CN221423482U CN221423482U CN202323349938.8U CN202323349938U CN221423482U CN 221423482 U CN221423482 U CN 221423482U CN 202323349938 U CN202323349938 U CN 202323349938U CN 221423482 U CN221423482 U CN 221423482U
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- China
- Prior art keywords
- circuit board
- water pump
- driving circuit
- electronic water
- end cover
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 238000009434 installation Methods 0.000 claims description 6
- 230000017525 heat dissipation Effects 0.000 claims description 2
- 230000005494 condensation Effects 0.000 abstract description 12
- 238000009833 condensation Methods 0.000 abstract description 12
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a driving circuit board mounting structure of an electronic water pump and the electronic water pump using the same, and relates to the technical field of the electronic water pump and parts thereof, wherein the electronic water pump at least comprises a driving circuit board, a pump shell and an end cover; a circuit board mounting cavity is formed in the pump shell, the driving circuit board is accommodated and fixed in the circuit board mounting cavity of the pump shell, and the end cover is fixed at one end of the pump shell and covers the opening of the circuit board mounting cavity; the drive circuit board is mutually attached to the end cover, so that heat of the drive circuit board can be transferred to the end cover. The utility model mainly solves the problem of how to reduce the condensation water quantity generated on the surface of the driving circuit board of the electronic water pump; the utility model can reduce the condensation water quantity generated on the surface of the driving circuit board of the electronic water pump, effectively avoid the open circuit, short circuit or other faults of the driving circuit board, and improve the performance, the operation stability and the service life of the electronic water pump.
Description
Technical Field
The utility model relates to the technical field of electronic water pumps and parts thereof, in particular to a driving circuit board mounting structure of an electronic water pump and the electronic water pump using the same.
Background
The electronic water pump has higher output efficiency and can realize accurate flow control, so that the electronic water pump is widely applied to automobiles, household appliances and industrial equipment, and especially, a new energy automobile is generally provided with two or more electronic water pumps, the electronic water pumps are power sources of the whole cooling system of the new energy automobile, and power batteries, driving motors and the like of the new energy automobile all need to drive cooling liquid to be cooled circularly by means of the electronic water pumps.
The driving circuit board is one of core parts of the electronic water pump and is used for driving the stator assembly to operate, so that the stator assembly can generate a rotating magnetic field and further drive the rotor assembly to rotate.
Because the driving circuit board is provided with a main control, a power electronic device for driving the stator assembly to operate and other necessary peripheral circuits, the driving circuit board has higher heating value; in the prior art, a driving circuit board of the electronic water pump is usually arranged in a pump shell, and the driving circuit board can change in temperature when running or stopping, so that the internal environment of the pump shell can also change in temperature, a certain gap is reserved between the pump shell and an end cover, condensed water can be generated in air in the pump shell under a certain condition, and when the condensed water is attached to a printed circuit and components of the driving circuit board, problems such as metal oxidation and corrosion can be possibly caused, and finally, the driving circuit board is opened, shorted or otherwise failed, so that the stator assembly can not be normally driven to run.
In summary, how to reduce the amount of condensation water generated on the surface of the driving circuit board of the electronic water pump becomes one of the problems to be solved.
Disclosure of utility model
The utility model aims to provide a driving circuit board mounting structure of an electronic water pump and the electronic water pump using the same, which can effectively reduce the amount of condensation water generated on the surface of the driving circuit board of the electronic water pump.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a driving circuit board mounting structure of an electronic water pump is applied to the electronic water pump; the electronic water pump at least comprises a driving circuit board, a pump shell and an end cover; the drive circuit board is accommodated and fixed in the circuit board mounting cavity of the pump shell, and the end cover is fixed at one end of the pump shell and covers the opening of the circuit board mounting cavity; the driving circuit board is mutually attached to the end cover, so that heat of the driving circuit board can be transferred to the end cover.
In the above technical scheme, one surface of the driving circuit board is a component layout surface, and the other surface of the driving circuit board is a mounting bonding surface; the installation joint surface of the driving circuit board is mutually jointed with the end cover, and the component arrangement surface of the driving circuit board faces the circuit board installation cavity of the pump shell.
In the above technical scheme, a heat conducting medium is coated between the driving circuit board and the end cover.
In the above technical solution, a gap L is provided between the side edge of the driving circuit board and the inner wall of the pump casing.
In the technical scheme, the gap L is more than or equal to 1mm.
In the above technical solution, the pump housing is formed with a mounting post in the circuit board mounting cavity, and the driving circuit board is fixed on the mounting post of the pump housing.
In the above technical solution, a heat-conducting attaching portion is formed on one side of the end cover inside the circuit board mounting cavity, so as to attach to the driving circuit board; the end cap is formed with a heat dissipation structure at a side outside the circuit board installation cavity so as to dissipate heat of the end cap into air.
In the above technical scheme, the end cover is formed with a grounding column at one side in the circuit board mounting cavity.
An electronic water pump comprises the driving circuit board mounting structure of the electronic water pump.
Compared with the prior art, the utility model has the beneficial effects that: according to the driving circuit board mounting structure of the electronic water pump and the electronic water pump using the same, heat of the driving circuit board can be transferred to the end cover, firstly, the driving circuit board dissipates heat, secondly, the end cover has certain heat, air in the pump shell encounters the warm end cover, and the surface of the end cover is not easy to generate a water vapor condensation phenomenon.
Drawings
Fig. 1 is one of the perspective views of the present utility model.
Fig. 2 is a second perspective view of the present utility model.
Fig. 3 is an exploded view of the present utility model.
Fig. 4 is a cross-sectional view of the present utility model.
The reference numerals are: 1. a driving circuit board; 11. a component layout surface; 12. mounting a bonding surface; 13. side edges; 2. a pump housing; 21. a circuit board mounting cavity; 22. a mounting column; 3. an end cap; 31. a heat dissipating structure; 32. a heat conduction attaching part; 33. and a grounding column.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The embodiment provides a driving circuit board mounting structure of an electronic water pump, which is applied to the electronic water pump.
Referring to fig. 1-4, the electronic water pump of the present embodiment at least includes a driving circuit board 1, a pump housing 2 and an end cover 3.
The driving circuit board 1 is a printed circuit board, and is provided with a main control, power electronic devices for driving the stator assembly to operate and other necessary peripheral circuits for driving the stator assembly of the electronic water pump to operate; the pump shell 2 can be used for forming a shell of the electronic water pump, and provides a structural foundation for the electronic water pump; the end cover 3 is a cover plate with good heat conduction performance and is used for shielding the driving circuit board 1.
A circuit board mounting cavity 21 is formed in the pump housing 2, the driving circuit board 1 is accommodated and fixed in the circuit board mounting cavity 21 of the pump housing 2, and the end cover 3 is fixed at one end of the pump housing 2 and covers an opening of the circuit board mounting cavity 21; the driving circuit board 1 and the end cover 3 are mutually attached, so that heat of the driving circuit board 1 can be transferred to the end cover 3.
Specifically, one surface of the driving circuit board 1 is a component layout surface 11, that is, a main control, a power electronic component for driving the stator assembly to operate, and other necessary peripheral circuits are all laid on the component layout surface 11, and the other surface of the driving circuit board 1 is a mounting bonding surface 12, that is, the mounting bonding surface 12 is not provided with or is provided with few components, so that the mounting bonding surface 12 is flat, the contact area between the main control and the power electronic component and other necessary peripheral circuits is increased, and the heat transfer efficiency of the driving circuit board 1 is improved.
Further, a heat-conducting medium, such as heat-conducting silicone grease, is coated between the driving circuit board 1 and the end cover 3 to further improve the heat transfer efficiency of the driving circuit board 1.
Since the mounting bonding surface 12 of the driving circuit board 1 is a flat surface and the gap between the driving circuit board 1 and the end cover 3 is filled with the heat-conducting medium, air is difficult to enter the gap between the driving circuit board 1 and the end cover 3, and the possibility of condensation of water vapor at the place is avoided.
Further, a clearance L is provided between the side edge 13 of the drive circuit board 1 and the inner wall of the pump casing 2; the clearance L is arranged so as to facilitate the space penetration in the pump shell 2, thereby ensuring that air convection can occur near the drive circuit board 1, ensuring that the air temperature in the pump shell 2 is as uniform as possible, avoiding the phenomenon of water vapor condensation due to the fact that the temperature difference between the air in the pump shell 2 and the inner wall of the pump shell 2 is too large.
More specifically, the clearance L is more than or equal to 1mm; preferably, the gap l=1.5 mm enables the drive circuit board 1 to obtain as large an area as possible without affecting the convection of air in the vicinity of the drive circuit board 1.
Further, the pump housing 2 is formed with a mounting post 22 in the circuit board mounting cavity 21, and the drive circuit board 1 is fixed to the mounting post 22 of the pump housing 2; in this embodiment, the drive circuit board 1 is fixed in the pump housing 2 by the engagement of the screws and the positioning posts that are locked into the mounting posts 22.
Further, the end cap 3 is formed with a heat conductive fitting portion 32 at one side inside the circuit board mounting chamber 21 so as to be fitted to the driving circuit board 1, and in practice, the heat conductive fitting portion 32 is an arched portion inside the end cap 3 adapted to be fitted to the driving circuit board 1; the end cover 3 is formed with a heat radiation structure 31 at a side other than the circuit board mounting cavity 21 so as to radiate heat of the end cover 3 into the air, and in practice, the heat radiation structure 31 is a heat radiation fin or a heat radiation column at an outer side of the end cover 3, which can increase a contact area of the end cover 3 with the air.
Further, the end cover 3 is formed with a grounding post 33 at one side inside the circuit board mounting cavity 21, and the grounding post 33 is matched with a spring piece or a terminal on the surface of the driving circuit board 1, so that the end cover 3 is electrically connected with the driving circuit board 1, and the end cover 3 can be grounded through a circuit on the driving circuit board 1.
The driving circuit board mounting structure of the electronic water pump of this embodiment can reduce the condensate water volume that the driving circuit board 1 surface of electronic water pump produced, and the principle lies in:
1. The heat of the driving circuit board 1 can be transferred to the end cover 3, firstly, the driving circuit board 1 dissipates heat, secondly, the end cover 3 has a certain amount of heat, the air in the pump shell 2 encounters the warm end cover 3, and the surface of the end cover 3 is not easy to generate the phenomenon of vapor condensation;
2. Because the mounting joint surface 12 of the driving circuit board 1 is a flat surface, and the gap between the driving circuit board 1 and the end cover 3 is filled with the heat conducting medium, air is difficult to enter the gap between the driving circuit board 1 and the end cover 3, and the possibility of condensation of water vapor at the place is avoided;
3. The gap L is formed between the side edge 13 of the driving circuit board 1 and the inner wall of the pump shell 2, so that the space in the pump shell 2 is communicated conveniently, air convection can be ensured to occur near the driving circuit board 1, the air temperature in the pump shell 2 is as uniform as possible, the temperature difference between the air in the pump shell 2 and the inner wall of the pump shell 2 is not excessive, and the phenomenon of water vapor condensation is avoided.
The embodiment also provides an electronic water pump, which comprises the driving circuit board mounting structure of the electronic water pump.
In fact, the driving circuit board 1 is electrically connected with the stator assembly of the electronic water pump, and is used for driving the stator assembly of the electronic water pump to operate, so that the stator assembly can generate a rotating magnetic field in an inner ring of the stator assembly, and further, the rotor impeller assembly of the electronic water pump is driven to operate.
The driving circuit board mounting structure of the electronic water pump and the electronic water pump using the same can transfer heat of the driving circuit board 1 to the end cover 3, firstly, the driving circuit board 1 dissipates heat, secondly, the end cover 3 has certain heat, air in the pump shell 2 encounters the warm end cover 3, and the surface of the end cover 3 is not easy to generate a water vapor condensation phenomenon, so that the condensation water quantity generated on the surface of the driving circuit board 1 of the electronic water pump can be reduced, the driving circuit board 1 is effectively prevented from generating open circuits, short circuits or other faults, and the performance, the running stability and the service life of the electronic water pump are improved.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A driving circuit board mounting structure of an electronic water pump is applied to the electronic water pump; the electronic water pump is characterized by at least comprising a driving circuit board, a pump shell and an end cover;
The drive circuit board is accommodated and fixed in the circuit board mounting cavity of the pump shell, and the end cover is fixed at one end of the pump shell and covers the opening of the circuit board mounting cavity;
The driving circuit board is mutually attached to the end cover, so that heat of the driving circuit board can be transferred to the end cover.
2. The drive circuit board mounting structure of an electronic water pump according to claim 1, wherein: one surface of the driving circuit board is a component layout surface, and the other surface of the driving circuit board is a mounting and bonding surface;
The installation joint surface of the driving circuit board is mutually jointed with the end cover, and the component arrangement surface of the driving circuit board faces the circuit board installation cavity of the pump shell.
3. The drive circuit board mounting structure of an electronic water pump according to claim 1 or 2, characterized in that: a heat conducting medium is coated between the drive circuit board and the end cover.
4. The drive circuit board mounting structure of an electronic water pump according to claim 1 or 2, characterized in that: a gap L is formed between the side edge of the driving circuit board and the inner wall of the pump shell.
5. The drive circuit board mounting structure of an electronic water pump according to claim 4, wherein: the gap L is more than or equal to 1mm.
6. The drive circuit board mounting structure of an electronic water pump according to claim 1, wherein: the pump housing forms a mounting post in the circuit board mounting cavity, and the drive circuit board is fixed on the mounting post of the pump housing.
7. The drive circuit board mounting structure of an electronic water pump according to claim 1, wherein: a heat conduction attaching part is formed on one side of the end cover in the circuit board mounting cavity so as to attach to the driving circuit board;
The end cap is formed with a heat dissipation structure at a side outside the circuit board installation cavity so as to dissipate heat of the end cap into air.
8. The drive circuit board mounting structure of an electronic water pump according to claim 1 or 7, wherein: the end cap is formed with a ground post on one side within the circuit board mounting cavity.
9. An electronic water pump, characterized by comprising the driving circuit board mounting structure of the electronic water pump according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323349938.8U CN221423482U (en) | 2023-12-08 | 2023-12-08 | Driving circuit board mounting structure of electronic water pump and electronic water pump using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323349938.8U CN221423482U (en) | 2023-12-08 | 2023-12-08 | Driving circuit board mounting structure of electronic water pump and electronic water pump using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221423482U true CN221423482U (en) | 2024-07-26 |
Family
ID=91979021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323349938.8U Active CN221423482U (en) | 2023-12-08 | 2023-12-08 | Driving circuit board mounting structure of electronic water pump and electronic water pump using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221423482U (en) |
-
2023
- 2023-12-08 CN CN202323349938.8U patent/CN221423482U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |