CN220956083U - Brushless electronic water pump - Google Patents
Brushless electronic water pump Download PDFInfo
- Publication number
- CN220956083U CN220956083U CN202322746041.2U CN202322746041U CN220956083U CN 220956083 U CN220956083 U CN 220956083U CN 202322746041 U CN202322746041 U CN 202322746041U CN 220956083 U CN220956083 U CN 220956083U
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- CN
- China
- Prior art keywords
- heat dissipation
- spacer
- shell
- water pump
- stator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 230000017525 heat dissipation Effects 0.000 claims abstract description 98
- 125000006850 spacer group Chemical group 0.000 claims abstract description 85
- 238000007789 sealing Methods 0.000 claims abstract description 31
- 239000012530 fluid Substances 0.000 claims abstract description 28
- RVCKCEDKBVEEHL-UHFFFAOYSA-N 2,3,4,5,6-pentachlorobenzyl alcohol Chemical compound OCC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl RVCKCEDKBVEEHL-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000004804 winding Methods 0.000 claims abstract description 8
- 239000007769 metal material Substances 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 claims description 24
- 230000000694 effects Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a brushless electronic water pump, which comprises a shell, wherein a sealing spacer is arranged in the shell, a rotor impeller assembly is arranged in the sealing spacer, a heat dissipation spacer made of metal materials is fixed in the shell, a heat dissipation base is fixed at the lower end of the heat dissipation spacer, a stator assembly mounting cavity is formed between the sealing spacer and the heat dissipation spacer, a stator assembly is arranged in the stator assembly mounting cavity, a stator core of the stator assembly is in contact with the heat dissipation spacer, a fluid flow chamber is arranged between the heat dissipation base and the sealing spacer, the fluid flow chamber is communicated with the rotor assembly mounting cavity, a PCBA plate is fixed on the back surface of the heat dissipation base and is positioned between the heat dissipation base and the lower cover, and a stator winding on the stator assembly is electrically connected with the PCBA plate. The brushless electronic water pump can rapidly conduct out the heat of the stator assembly, and the heat dissipation effect of the brushless electronic water pump is improved.
Description
Technical Field
The utility model relates to the technical field of electronic water pumps, in particular to a brushless electronic water pump.
Background
The electronic water pump drives the impeller to rotate by utilizing the magnetic action between the rotor and the stator. However, the heat dissipation of the stator is not considered because the windings of the stator themselves heat up.
The patent publication No. CN113137376A discloses a high-power brushless electronic water pump, which comprises a shell with one end being open and one end being provided with a bottom plate, wherein an upper cover is arranged at the open end of the shell, a heat dissipation cover is arranged on the shell provided with the bottom plate end, a circuit board accommodating cavity is arranged between the bottom plate and the heat dissipation cover, the circuit board is arranged on the bottom plate through an installation positioning structure, and an avoidance structure is also arranged on the bottom plate on the same side as the circuit board; the rotor assembly comprises an upper cover, a rotor assembly mounting cavity, a sealing spacer bush, a stator assembly mounting cavity, a stator assembly and a rotor assembly, wherein the rotor assembly mounting cavity is formed in the upper cover; one end of the sealing spacer is clamped by the upper cover and the shell, the other end of the sealing spacer extends towards the direction of the bottom plate, a fluid flow chamber is arranged between the bottom plate and the sealing spacer, and the fluid flow chamber is communicated with the rotor assembly installation cavity.
Obviously, the shell and the bottom plate of the electronic water pump are both made of metal materials, the relative cost is relatively high, and the heat generated by the stator assembly of the brushless electronic water pump is difficult to be conducted out.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: the brushless electronic water pump can rapidly conduct out heat of the stator assembly, and improves the heat dissipation effect of the brushless electronic water pump.
In order to solve the technical problems, the technical scheme of the utility model is as follows: the utility model provides a brushless electronic water pump, includes the shell, the upper end of shell is provided with the upper cover, the lower extreme of shell is provided with the lower cover, be provided with sealed spacer in the shell, be provided with rotor assembly installation cavity in the sealed spacer, rotor assembly installation cavity internal rotation is installed rotor impeller assembly, sealed spacer with the region between the upper cover has constituted the fluid chamber, rotor impeller assembly's impeller is located in the fluid chamber, be provided with water inlet and delivery port on the upper cover, be fixed with the heat dissipation spacer of metal material in the shell, the lower extreme of heat dissipation spacer is fixed with the heat dissipation base, form stator assembly installation cavity between sealed spacer and the heat dissipation spacer, stator assembly installs stator assembly in the stator assembly's stator core with the heat dissipation spacer contacts, the base with be equipped with fluid flow chamber between the sealed spacer, fluid flow chamber with rotor assembly installation cavity intercommunication each other, the back of heat dissipation base is fixed with the heat dissipation base, the heat dissipation base is located between the stator winding and the PCBA, the electric winding is located down between the PCBA.
As a preferable scheme, the upper end of the heat dissipation spacer bush is provided with an upper edge fixing flange, the inside of the shell is provided with a matching step matched with the upper edge fixing flange, and the sealing spacer bush is arranged between the shell and the upper cover and compresses the upper edge fixing flange on the matching step.
As a preferable scheme, the heat dissipation base is provided with a positioning support sleeve protruding upwards, the sealing spacer sleeve is arranged in the positioning support sleeve and is in sealing fit with the positioning support sleeve, the positioning support sleeve is internally provided with the fluid flow chamber, the lower end of the heat dissipation spacer sleeve is provided with a lower contact cylinder part, and the lower contact cylinder part is in heat conduction contact with the outer wall of the positioning support sleeve.
As a preferable scheme, the heat dissipation base is provided with a plurality of first fixing columns, and the heat dissipation spacer is fixed on the first fixing columns through bolts.
As a preferable scheme, a plurality of heat dissipation bulges are arranged on the heat dissipation base and positioned in the positioning support sleeve.
As a preferable scheme, the side wall of the heat dissipation spacer bush is provided with a positioning convex rib or a positioning groove, and correspondingly, the inner wall of the shell is provided with a positioning groove or a positioning convex rib.
After the technical scheme is adopted, the utility model has the following effects: because the shell internally is fixed with the heat dissipation spacer bush of metal material, the lower extreme of heat dissipation spacer bush is fixed with the heat dissipation base, consequently, the heat dissipation base can dispel the heat that the heat dissipation spacer bush transmitted, consequently the shell just need not to adopt the metal material, and can adopt the plastics material, reduced the cost, form stator assembly installation cavity between sealed spacer bush and the heat dissipation spacer bush, install the stator assembly in the stator assembly installation cavity, stator core of stator assembly with the heat dissipation spacer bush contact, be equipped with fluid flow chamber between the heat dissipation base with sealed spacer bush, fluid flow chamber with rotor assembly installation cavity intercommunication each other, the back of heat dissipation base is fixed with PCBA board, PCBA board is located between heat dissipation base and the lower cover, stator winding on the stator assembly with PCBA board electricity is connected, and the heat of PCBA board, the heat of stator assembly all can be conducted to the heat dissipation base, and the fluid gets into through fluid flow chamber with the heat of base from the rotor assembly installation cavity, thereby whole brushless electron water pump takes away better radiating effect.
The upper end of the heat dissipation spacer is provided with the upper edge fixing flange, the inner part of the shell is provided with the matching step matched with the upper edge fixing flange, the sealing spacer is arranged between the shell and the upper cover and presses the upper edge fixing flange on the matching step, the heat dissipation spacer and the heat dissipation base are directly plugged in from the upper end of the shell, the upper edge fixing flange is placed on the matching step, and then the heat dissipation spacer is better fixed when the sealing spacer and the upper cover are installed, so that the heat dissipation spacer is more convenient to install.
And because the positioning support sleeve protruding upwards is arranged on the heat dissipation base, the sealing spacer sleeve is arranged in the positioning support sleeve and is in sealing fit with the positioning support sleeve, the fluid flow chamber is arranged in the positioning support sleeve, the lower end of the heat dissipation spacer sleeve is provided with the lower contact cylinder part, the lower contact cylinder part is in heat conduction contact with the outer wall of the positioning support sleeve, and the heat dissipation base can be reliably contacted with the outer wall of the positioning support sleeve through the lower contact cylinder part, so that good heat conduction is ensured.
And as the heat dissipation base is provided with a plurality of heat dissipation bulges which are positioned in the positioning support sleeve, the heat dissipation area of the heat dissipation bulges can be increased, so that the fluid can conveniently and well take away the heat of the heat dissipation base.
And because the side wall of the heat dissipation spacer is provided with the positioning convex rib or the positioning groove, and correspondingly, the inner wall of the shell is provided with the positioning groove or the positioning convex rib, the installation angle of the heat dissipation spacer can be conveniently determined by utilizing the positioning convex rib and the positioning groove, and the installation is faster.
Drawings
The utility model will be further described with reference to the drawings and examples.
FIG. 1 is a perspective view of a structure of an embodiment of the present utility model;
FIG. 2 is a front view of an embodiment of the present utility model;
FIG. 3 is a cross-sectional view of FIG. 2 at B-B;
FIG. 4 is a perspective view of the seal spacer;
FIG. 5 is another angular perspective view of the seal spacer;
FIG. 6 is a perspective view of a heat dissipating spacer;
In the accompanying drawings: 1. a housing; 2. an upper cover; 3. a water inlet; 4. a water outlet; 5. a lower cover; 6. a fluid chamber; 7. sealing the spacer bush; 8. a rotor wheel assembly; 9. a stator assembly; 10. a heat dissipation spacer; 101. a lower contact cylinder portion; 102. an upper edge fixing flange; 103. positioning the convex ribs; 11. a heat dissipation base; 111. positioning a supporting sleeve; 112. a fluid flow chamber; 113. a heat radiation protrusion; 114. a first fixing post 114; 12. PCBA board; 71. a connecting rib; 72. a through hole; 73. and (5) mounting a column.
Detailed Description
The present utility model will be described in further detail with reference to the following examples.
As shown in fig. 1 to 6, a brushless electronic water pump comprises a housing 1, the housing 1 is preferably made of plastic materials, an upper cover 2 is arranged at the upper end of the housing 1, a lower cover 5 is arranged at the lower end of the housing 1, a sealing spacer 7 is arranged in the housing 1, a rotor assembly mounting cavity is arranged in the sealing spacer 7, a rotor impeller assembly 8 is rotatably mounted in the rotor assembly mounting cavity, a fluid chamber 6 is formed in an area between the sealing spacer 7 and the upper cover 2, an impeller of the rotor impeller assembly 8 is positioned in the fluid chamber 6, a water inlet 3 and a water outlet 4 are arranged on the upper cover 2, the rotor impeller assembly 8 comprises a rotor and an impeller, the rotor is rotatably mounted in the sealing spacer 7, and the impeller is fixed at the upper end of a rotor shaft. The stator assembly comprises a shell 1, a heat dissipation spacer bush 10 made of metal materials is fixed in the shell 1, a heat dissipation base is fixed at the lower end of the heat dissipation spacer bush 10, a stator assembly 9 installation cavity is formed between a sealing spacer bush 7 and the heat dissipation spacer bush 10, a stator assembly 9 is installed in the stator assembly 9 installation cavity, a stator iron core of the stator assembly 9 is in contact with the heat dissipation spacer bush 10, a fluid flow cavity 112 is arranged between the heat dissipation base 11 and the sealing spacer bush 7, the fluid flow cavity 112 is communicated with the rotor assembly installation cavity, a through hole 72 which is convenient for the fluid flow cavity 112 to communicate with the rotor assembly installation cavity is formed at the lower end of the sealing spacer bush 7, a connecting installation column 73 with a plurality of connecting ribs 71 is arranged in the through hole 72, a central shaft is fixed on the installation column 73, a rotor is rotatably installed on the central shaft, and an impeller is fixed on the rotor shaft and is driven to rotate by the rotor. The back of the heat dissipation base 11 is fixed with a PCBA board 12, the PCBA board 12 is positioned between the heat dissipation base 11 and the lower cover 5, and the stator windings on the stator assembly 9 are electrically connected with the PCBA board 12.
As shown in fig. 3 and 6, the upper end of the heat dissipation spacer 10 is provided with an upper edge fixing flange 102, a matching step matched with the upper edge fixing flange 102 is provided in the housing 1, and the sealing spacer 7 is disposed between the housing 1 and the upper cover 2 and presses the upper edge fixing flange 102 onto the matching step. The heat dissipation base 11 is provided with a positioning support sleeve 111 protruding upwards, the sealing spacer 7 is arranged in the positioning support sleeve 111 and is in sealing fit with the positioning support sleeve 111, the positioning support sleeve 111 is internally provided with a fluid flow chamber 112, the lower end of the heat dissipation spacer 10 is provided with a lower contact cylinder part 101, and the lower contact cylinder part 101 is in heat conduction contact with the outer wall of the positioning support sleeve 111.
The heat dissipation base 11 is provided with a plurality of first fixing columns 114, and the heat dissipation spacer 10 is fixed on the first fixing columns 114 through bolts, so that the heat dissipation spacer 10 and the heat dissipation base 11 are fixed into a whole, and the size of the heat dissipation base 11 is matched with the size of the shell 1, thereby facilitating the integral placement of the heat dissipation spacer 10 and the heat dissipation base 11. The side wall of the heat dissipation spacer 10 is provided with a positioning convex rib 103 or a positioning groove, and correspondingly, the inner wall of the shell 1 is provided with a positioning groove or a positioning convex rib 103. Therefore, the heat dissipation spacer 10 can be installed by only aligning the positioning ribs 103 with the positioning grooves when being put in.
The heat dissipation base 11 is provided with a plurality of heat dissipation protrusions 113 located in the positioning support sleeve 111, so that the heat dissipation effect can be increased.
The above examples are merely illustrative of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and adaptations of the technical solution of the present invention should and are intended to fall within the scope of the present invention as defined in the claims.
Claims (6)
1. The utility model provides a brushless electronic water pump, includes the shell, the upper end of shell is provided with the upper cover, the lower extreme of shell is provided with the lower cover, be provided with sealed spacer in the shell, be provided with rotor assembly installation cavity in the sealed spacer, rotor assembly installation cavity is interior to rotate and is installed rotor impeller assembly, sealed spacer with the region between the upper cover has constituted the fluid chamber, rotor impeller assembly's impeller is located the fluid chamber, be provided with water inlet and delivery port on the upper cover, its characterized in that: the stator assembly comprises a shell, a heat dissipation spacer bush, a heat dissipation base, a stator assembly installation cavity, a stator core, a rotor assembly installation cavity, a PCBA plate, a stator winding and a PCBA plate, wherein the heat dissipation spacer bush is fixedly made of metal materials and arranged in the shell, the heat dissipation base is fixedly arranged at the lower end of the heat dissipation spacer bush, the stator assembly installation cavity is formed between the sealing spacer bush and the heat dissipation spacer bush, the stator core of the stator assembly is in contact with the heat dissipation spacer bush, a fluid flow cavity is arranged between the heat dissipation base and the sealing spacer bush, the fluid flow cavity is mutually communicated with the rotor assembly installation cavity, the PCBA plate is fixedly arranged on the back of the heat dissipation base and is positioned between the heat dissipation base and the lower cover, and the stator winding on the stator assembly is electrically connected with the PCBA plate.
2. A brushless electric water pump as defined in claim 1, wherein: the upper end of the heat dissipation spacer bush is provided with an upper edge fixing flange, the inside of the shell is provided with a matching step matched with the upper edge fixing flange, and the sealing spacer bush is arranged between the shell and the upper cover and compresses the upper edge fixing flange on the matching step.
3. A brushless electric water pump as defined in claim 2, wherein: the heat dissipation base is provided with a positioning support sleeve protruding upwards, the sealing spacer sleeve is arranged in the positioning support sleeve and is in sealing fit with the positioning support sleeve, the positioning support sleeve is internally provided with the fluid flow chamber, the lower end of the heat dissipation spacer sleeve is provided with a lower contact cylinder part, and the lower contact cylinder part is in heat conduction contact with the outer wall of the positioning support sleeve.
4. A brushless electric water pump as claimed in claim 3, wherein: the heat dissipation base is provided with a plurality of first fixing columns, and the heat dissipation spacer is fixed on the first fixing columns through bolts.
5. A brushless electric water pump as defined in claim 4, wherein: and a plurality of heat dissipation bulges are arranged on the heat dissipation base and positioned in the positioning support sleeve.
6. The brushless electronic water pump of claim 5, wherein: the side wall of the heat dissipation spacer bush is provided with a positioning convex rib or a positioning groove, and correspondingly, the inner wall of the shell is provided with a positioning groove or a positioning convex rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322746041.2U CN220956083U (en) | 2023-10-13 | 2023-10-13 | Brushless electronic water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322746041.2U CN220956083U (en) | 2023-10-13 | 2023-10-13 | Brushless electronic water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220956083U true CN220956083U (en) | 2024-05-14 |
Family
ID=91018637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322746041.2U Active CN220956083U (en) | 2023-10-13 | 2023-10-13 | Brushless electronic water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220956083U (en) |
-
2023
- 2023-10-13 CN CN202322746041.2U patent/CN220956083U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |