CN220857739U - Stator assembly of high-power brushless electronic water pump - Google Patents
Stator assembly of high-power brushless electronic water pump Download PDFInfo
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- CN220857739U CN220857739U CN202322641696.3U CN202322641696U CN220857739U CN 220857739 U CN220857739 U CN 220857739U CN 202322641696 U CN202322641696 U CN 202322641696U CN 220857739 U CN220857739 U CN 220857739U
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- stator
- winding
- end cover
- insulating end
- water pump
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 238000004804 winding Methods 0.000 claims abstract description 98
- 239000002184 metal Substances 0.000 claims abstract description 36
- 239000004033 plastic Substances 0.000 claims abstract description 7
- 229920003023 plastic Polymers 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 4
- 230000017525 heat dissipation Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 6
- 238000002955 isolation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000006223 plastic coating Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The utility model discloses a stator assembly of a high-power brushless electronic water pump, which comprises a metal shell and a stator assembly, wherein the stator assembly comprises a stator core, an upper insulating end cover and a lower insulating end cover which are arranged at two ends of the stator core, a stator winding is wound between the upper insulating end cover and the lower insulating end cover, a phase ring is fixed on the lower insulating end cover, the phase ring comprises a phase ring body made of plastic materials, a plurality of annular caulking grooves are formed in the phase ring body, three metal connecting sheets are embedded in the annular caulking grooves, each metal connecting sheet is provided with a metal pin, the metal pin downwards penetrates through a bottom plate of the shell and is used for being connected with a circuit board, each metal connecting sheet is provided with a winding hook, an enameled wire of the stator winding bypasses the winding hook and is welded, and an insulating protection ring is arranged between the phase ring body and the shell. The stator assembly can better facilitate the winding of the stator winding, and can meet the heat dissipation requirement of the high-power brushless electronic water pump.
Description
Technical Field
The utility model relates to the technical field of brushless electronic water pumps, in particular to a stator assembly of a high-power brushless electronic water pump.
Background
The brushless electronic water pump mainly comprises a metal shell, a stator assembly, a rotor impeller assembly and an isolation sleeve, wherein the stator impeller assembly and the stator assembly are separated by the isolation sleeve, an isolated fluid space is formed, and the rotor impeller assembly rotates to generate suction force for fluid.
The patent document with the patent number 202221087721.7 discloses a structure of a stator assembly, which comprises a plastic outer shell and a stator assembly fixed in the outer shell, the stator assembly comprises a stator core, a stator winding and a plastic stator inner shell, the stator core and the stator winding are embedded in the stator inner shell, the center of the stator inner shell is provided with a mounting cavity for mounting a rotor impeller assembly, the center of the mounting cavity is embedded with a central shaft, the upper end of the stator inner shell is also provided with a lower flange part matched with an upper cover of an electronic water pump, at least one mounting groove is formed in the outer part of the stator inner shell, the outer wall of the stator core is exposed from the mounting groove, a grounding spring piece is arranged in the mounting groove, the grounding spring piece is extruded between the outer wall of the stator core and the outer shell, the bottom of the stator inner shell is fixedly provided with a heat dissipation metal plate, the lower end of the grounding spring piece is contacted with the heat dissipation metal plate, the center of the mounting cavity is provided with a grounding connection screw hole for connecting with a grounding electrode of a stator enamelled wire of a PCB (printed circuit board), the enameled wire is connected with a pin, the pin is embedded in the inner shell, and the lower end of the PCB is exposed out of the PCB.
Such a stator assembly has the following disadvantages: 1. the stator core is an inner stator shell, the stator core and the stator winding are embedded into the inner stator shell, so that plastic coating is needed after the stator core and the stator winding are formed, the cost is relatively high, the stator core is grounded, the outer part of the stator core is exposed, the grounding spring plate is pressed and contacted with the shell, and then the grounding is realized by contacting with the heat dissipation metal plate, and the grounding operation is relatively troublesome; 2. the enameled wire of the stator assembly is connected through the enameled wire pins, and the enameled wire pins are embedded into the stator inner shell, so that the enameled wire and the enameled wire pins are welded and then coated when plastic coating is carried out, the enameled wire pins and the enameled wire are assembled and positioned firstly during coating, then the enameled wire can be coated, and the winding process of the enameled wire is difficult to automate.
Disclosure of utility model
The technical problems to be solved by the utility model are as follows: the stator assembly of the high-power brushless electronic water pump can better facilitate winding of stator windings and can meet the heat dissipation requirement of the high-power 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 stator assembly of high-power brushless electronic water pump, includes the shell of metal and is fixed in the stator module in the shell, the stator module includes stator core and sets up in the last insulating end cover and the lower insulating end cover at stator core both ends, it has stator winding to twine between insulating end cover and the lower insulating end cover, be fixed with looks ring on the insulating end cover down, looks ring includes the looks ring body of plastics material, be provided with a plurality of annular caulking groove on the looks ring body, the embedding has three metal connection piece in the annular caulking groove, all is provided with an axially protruding metal pin on every metal connection piece, and this metal pin runs through downwards the bottom plate of shell is used for being connected with the circuit board, is provided with at least one directional wire winding couple in middle part on every metal connection piece, stator winding's wire winding couple and welding form appointed wire winding structure, be provided with the insulating protection ring to wire winding couple between looks ring body and the shell.
As a preferable scheme, be provided with at least three radial connecting block to central extension on the looks ring body, insulating protection ring includes the protection ring body, the periphery of protection ring body is provided with the installation department with radial connecting block one-to-one, block fit between installation department, the radial connecting block, still be provided with the cover on the protection ring body the guard plate portion of wire winding couple.
As a preferable scheme, the mounting part and the radial connecting block are respectively provided with a clamping hole, and the lower insulating end cover is provided with a clamping column which is convenient for sleeving the clamping holes.
As a preferred scheme, stator core includes ring yoke, stator tooth and stator outer loop, stator tooth circumference equipartition sets up in the periphery of ring yoke, forms the stator groove between the adjacent stator tooth, the outer tip of stator tooth is provided with the stator pole shoe, go up insulating end cover and lower insulating end cover respectively cover ring yoke, stator tooth and stator pole shoe, be provided with a plurality of and stator pole shoe one-to-one's mounting caulking groove on the stator outer loop, stator pole shoe one-to-one embedding in the mounting caulking groove.
As a preferred solution, the stator pole shoe comprises an outer contour surface and an inner contour surface, wherein the outer contour surface is an arc surface and is arranged concentrically with the annular yoke, and the inner contour surface is also an arc surface and has a radius larger than that of the outer contour surface.
As a preferable scheme, an avoidance arc-shaped groove which is matched with the inner contour surface of the stator pole shoe is arranged on the inner circumferential surface of the stator outer ring.
As a preferable scheme, three or six winding grooves which are convenient for the enameled wires to pass through are formed in the lower insulating end cover, and the winding hooks correspond to the corresponding winding grooves in position.
As a preferable scheme, the lower insulating end cover and the lower insulating end cover are connected into an integrated structure through a connector, an assembly groove which is convenient for assembling the radial connecting block is formed between the adjacent winding grooves of the lower insulating end cover, and the clamping column is arranged in the assembly groove.
As a preferable scheme, a plurality of winding bulge groups are arranged on the lower insulating end cover, each winding bulge group corresponds to the stator teeth one by one, each winding bulge group comprises two pairs of winding bulges, a winding single caulking groove is formed between each pair of winding bulges, and a winding groove is formed between every two adjacent winding single caulking grooves.
After the technical scheme is adopted, the utility model has the following effects: the stator assembly comprises a stator winding, and is characterized in that a lower insulating end cover is fixedly provided with a phase ring, the phase ring comprises a phase ring body made of plastic materials, a plurality of annular caulking grooves are formed in the phase ring body, three metal connecting pieces are embedded in the annular caulking grooves, each metal connecting piece is provided with an axially protruding metal pin, the metal pins downwards penetrate through a bottom plate of the shell and are used for being connected with a circuit board, each metal connecting piece is provided with at least one winding hook pointing to the middle part, enamelled wires of the stator winding bypass the winding hooks and are welded to form a specified winding structure, an insulating protection ring for protecting the winding hooks is arranged between the phase ring body and the shell, and the stator assembly is welded on the winding hooks conveniently due to the fact that the phase ring is arranged.
And because be provided with at least three radial connecting block that extends to the center on the looks ring body, insulating protection ring includes the protection ring body, the periphery of protection ring body is provided with the installation department with radial connecting block one-to-one, block fit between installation department, the radial connecting block, still be provided with the cover on the protection ring body the guard plate portion of wire winding couple utilizes radial connecting block can make things convenient for the better installation of protection ring body, and simultaneously, guard plate portion can protect wire winding couple one by one, and the protection effect is good.
Because stator core includes ring yoke, stator tooth and stator outer loop, stator tooth circumference equipartition sets up in the periphery of ring yoke, forms the stator groove between the adjacent stator tooth, the outer tip of stator tooth is provided with the stator pole shoe, go up insulating end cover and lower insulating end cover respectively cover ring yoke, stator tooth and stator pole shoe, be provided with a plurality of and stator pole shoe one-to-one's mounting caulking groove on the stator outer loop, the stator pole shoe one-to-one embedding in the mounting caulking groove, this stator core can be with the enameled wire around on the stator tooth when shaping and wire winding, and the stator outer loop can not install this moment, and the wire winding can be accomplished on automatic coiling machine like this, and after accomplishing the wire winding, again with stator outer loop installation, shortened the time of wire winding like this.
The stator pole shoe comprises an outer contour surface and an inner contour surface, wherein the outer contour surface is an arc surface and is arranged concentrically with the annular yoke, and the inner contour surface is also an arc surface and has a radius larger than that of the outer contour surface. The inner contour of the stator pole shoe is opened to the outside more, so that the stator slot can be wound more, the full rate of the stator slot is higher, and the performance of the water pump is better.
And because the inner circumferential surface of the stator outer ring is provided with the avoidance arc-shaped groove which is matched with the inner contour surface of the stator pole shoe, the avoidance arc-shaped groove can effectively avoid the stator winding.
And because the lower insulating end cover is provided with three or six winding grooves which are convenient for the enameled wires to pass through, the winding hooks correspond to the positions of the corresponding winding grooves, so that the winding operation of the stator winding can be facilitated, the three or six winding grooves are selected to finish the serial connection or parallel connection of the enameled wires, and the use requirement of 24V or 12V is met.
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 schematic front view of an embodiment of the present utility model;
FIG. 3 is a cross-sectional view at A-A of FIG. 2;
FIG. 4 is a perspective view of a stator assembly;
FIG. 5 is a perspective view of a lower insulating end cap and a lower insulating end cap;
Fig. 6 is a top view of a stator core;
FIG. 7 is a front perspective view of a phase ring and an insulating guard ring;
FIG. 8 is a rear perspective view of the phase ring and the insulating guard ring;
FIG. 9 is a rear perspective view of the phase ring;
In the accompanying drawings: 1. a housing; 11. a bottom plate; 2. a stator assembly; 21. a stator core; 211. an annular yoke; 212. stator teeth; 213. stator pole shoes; 214. a stator outer ring; 215. an outer contour surface; 216. an inner profile surface; 217. avoiding the arc-shaped groove; 22. a stator winding; 23. a lower insulating end cap; 231. a winding protrusion group; 2311. a winding protrusion; 2312. an assembly groove; 2313. a clamping column; 2314. winding single caulking groove; 24. an upper insulating end cover; 25. a connecting body; 3. a phase ring 3; 31. a phase ring body; 32. a metal pin; 33. a radial connecting block; 34. an annular caulking groove; 35. a metal connecting sheet; 36. a winding hook; 4. an insulating guard ring; 41. a guard ring body; 42. a mounting part; 43. and a protection plate part.
Detailed Description
The present utility model will be described in further detail with reference to the following examples.
As shown in fig. 1 to 9, a stator assembly of a high-power brushless electronic water pump comprises a metal shell 1 and a stator assembly 2 fixed in the shell 1, wherein the stator assembly 2 comprises a stator core 21, an upper insulating end cover 24 and a lower insulating end cover 23 which are arranged at two ends of the stator core 21, a stator winding 22 is wound between the upper insulating end cover 24 and the lower insulating end cover 23, and in the embodiment, the lower insulating end cover 23 and the lower insulating end cover 23 are connected into an integral structure through a connecting body 25.
As shown in fig. 4 and fig. 7 to fig. 9, the phase ring 3 is fixed on the lower insulating end cover 23, the phase ring 3 comprises a phase ring body 31 made of plastic, a plurality of annular caulking grooves 34 are formed in the phase ring body 31, three metal connecting pieces 35 are embedded in the annular caulking grooves 34, each metal connecting piece 35 is provided with an axially protruding metal pin 32, the metal pins 32 penetrate through the bottom plate 11 of the housing 1 downwards and are used for being connected with a circuit board, and insulating sleeves are arranged between the metal pins 32 and the bottom plate 11 to realize insulating isolation.
Each metal connecting sheet 35 is provided with at least one winding hook 36 pointing to the middle, the enameled wire of the stator winding 22 bypasses the winding hook 36 and is welded to form a specified winding structure, and an insulating protection ring 4 for protecting the winding hook 36 is arranged between the phase ring body 31 and the shell 1.
The phase ring body 31 is provided with at least three radial connecting blocks 33 extending towards the center, the number of the radial connecting blocks 33 in the embodiment is 6, the insulation protection ring 4 comprises a protection ring body 41, the periphery of the protection ring body 41 is provided with mounting portions 42 corresponding to the radial connecting blocks 33 one by one, the mounting portions 42 and the radial connecting blocks 33 are clamped and combined, and the protection ring body 41 is further provided with a protection plate portion 43 covering the winding hooks 36. The mounting portion 42 and the radial connection block 33 are provided with clamping holes, and the lower insulating end cover 23 is provided with clamping posts 2313 which facilitate the sleeving of the clamping holes.
In this embodiment, three or six winding slots for the enameled wire to pass through are provided on the lower insulating end cover 23, and the winding hooks 36 correspond to the corresponding winding slots. Wherein, an assembling groove 2312 for assembling the radial connection block 33 is formed between the adjacent winding grooves of the lower insulating end cover 23, and the clamping post 2313 is disposed in the assembling groove 2312.
The lower insulating end cover 23 is provided with a plurality of winding protrusions 2311 set 231, each winding protrusion 2311 set 231 corresponds to the stator teeth 212 one by one, and therefore, the number of the stator teeth 212 in this embodiment is six, and therefore, the number of the winding protrusions 2311 set is six, each winding protrusion 2311 set 231 includes two pairs of winding protrusions 2311, a winding single caulking groove 2314 is formed between each pair of winding protrusions 2311, and the winding grooves are formed between adjacent winding single caulking grooves 2314.
As shown in fig. 4 and 6, the stator core 21 includes an annular yoke 211, stator teeth 212 and a stator outer ring 214, the stator teeth 212 are circumferentially and uniformly distributed on the periphery of the annular yoke 211, stator slots are formed between adjacent stator teeth 212, stator pole shoes 213 are disposed at outer ends of the stator teeth 212, the upper insulating end cover 24 and the lower insulating end cover 23 cover the annular yoke 211, the stator teeth 212 and the stator pole shoes 213 respectively, a plurality of mounting caulking grooves corresponding to the stator pole shoes 213 are disposed on the stator outer ring 214, and the stator pole shoes 213 are embedded in the mounting caulking grooves in a one-to-one correspondence. As shown in fig. 6, the stator pole piece 213 includes an outer contour surface 215 and an inner contour surface 216, wherein the outer contour surface 215 is an arc surface and is concentric with the annular yoke 211, and the inner contour surface 216 is also an arc surface and the radius of the inner contour surface 216 is larger than the radius of the outer contour surface 215. An avoidance arc-shaped groove 217 which is matched with the inner contour surface 216 of the stator pole shoe 213 is arranged on the inner circumferential surface of the stator outer ring 214.
In fig. 6, the radius of the outer contour surface 215 is R1, the inner diameter of the circular yoke 211 is R2, wherein the radius R1 of the outer contour surface 215 is equal to the radius R2 of the circular yoke 211, the radius R3 of the inner contour surface 216 is larger than R1, the curvature of the inner contour surface 216 of the stator pole shoe 213 is smaller than that of the outer contour surface 215, and an auxiliary line C in the figure indicates that the enameled wire can be wound from the outer side end of the stator pole shoe 213 better when winding the stator slot, and the enameled wire can be wound more outwards when avoiding the arc slot 217, so that the enameled wire can be wound more outwards, and the slot filling rate of the stator is higher.
The above examples are merely illustrative of the preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model, and various modifications and adaptations of the technical solution of the present utility model should and are intended to fall within the scope of the present utility model as defined in the claims.
Claims (9)
1. The utility model provides a high-power brushless electronic water pump's stator assembly, includes the shell of metal and is fixed in the stator module in the shell, stator module includes stator core and sets up in the last insulating end cover and the lower insulating end cover at stator core both ends, it has stator winding to twine between last insulating end cover and the lower insulating end cover, its characterized in that: the stator winding is characterized in that a phase ring is fixed on the lower insulating end cover and comprises a phase ring body made of plastic materials, a plurality of annular caulking grooves are formed in the phase ring body, three metal connecting pieces are embedded in the annular caulking grooves, each metal connecting piece is provided with an axially protruding metal pin, the metal pins downwards penetrate through the bottom plate of the shell and are used for being connected with a circuit board, each metal connecting piece is provided with at least one winding hook pointing to the middle, enamelled wires of the stator winding bypass the winding hooks and are welded to form a designated winding structure, and an insulating protection ring for protecting the winding hooks is arranged between the phase ring body and the shell.
2. The stator assembly of a high power brushless electric water pump as claimed in claim 1, wherein: the phase ring body is provided with at least three radial connecting blocks extending towards the center, the insulating protection ring comprises a protection ring body, the periphery of the protection ring body is provided with mounting parts corresponding to the radial connecting blocks one by one, the mounting parts and the radial connecting blocks are clamped and assembled, and the protection ring body is also provided with a protection plate part for covering the winding hooks.
3. The stator assembly of a high power brushless electric water pump as claimed in claim 2, wherein: the mounting part and the radial connecting block are respectively provided with a clamping hole, and the lower insulating end cover is provided with a clamping column which is convenient for clamping hole sleeving.
4. A stator assembly for a high power brushless electric water pump as defined in claim 3 wherein: the stator core comprises an annular yoke, stator teeth and a stator outer ring, wherein the circumference of the stator teeth is uniformly distributed on the periphery of the annular yoke, stator grooves are formed between adjacent stator teeth, stator pole shoes are arranged at the outer ends of the stator teeth, an upper insulating end cover and a lower insulating end cover respectively cover the annular yoke, the stator teeth and the stator pole shoes, a plurality of mounting caulking grooves in one-to-one correspondence with the stator pole shoes are formed in the stator outer ring, and the stator pole shoes are embedded in the mounting caulking grooves in one-to-one correspondence.
5. The stator assembly of a high power brushless electric water pump as claimed in claim 4, wherein: the stator pole shoe comprises an outer contour surface and an inner contour surface, wherein the outer contour surface is an arc surface and is arranged concentrically with the annular yoke part, and the inner contour surface is also an arc surface and has a radius larger than that of the outer contour surface.
6. The stator assembly of a high power brushless electric water pump as claimed in claim 5, wherein: and an avoidance arc-shaped groove which is matched with the inner contour surface of the stator pole shoe is arranged on the inner circumferential surface of the stator outer ring.
7. The stator assembly of a high power brushless electric water pump as claimed in claim 6, wherein: and three or six winding grooves which are convenient for the enameled wires to pass through are formed in the lower insulating end cover, and the winding hooks correspond to the corresponding winding grooves.
8. The stator assembly of a high power brushless electric water pump as claimed in claim 7, wherein: the lower insulating end cover and the lower insulating end cover are connected into an integrated structure through a connecting body, an assembly groove convenient for assembling the radial connecting block is formed between adjacent winding grooves of the lower insulating end cover, and the clamping column is arranged in the assembly groove.
9. The stator assembly of a high power brushless electric water pump as claimed in claim 8, wherein: the lower insulating end cover is provided with a plurality of winding bulge groups, each winding bulge group corresponds to the stator teeth one by one, each winding bulge group comprises two pairs of winding bulges, a winding single caulking groove is formed between each pair of winding bulges, and a winding groove is formed between every two adjacent winding single caulking grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322641696.3U CN220857739U (en) | 2023-09-27 | 2023-09-27 | Stator assembly of high-power brushless electronic water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322641696.3U CN220857739U (en) | 2023-09-27 | 2023-09-27 | Stator assembly of high-power brushless electronic water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220857739U true CN220857739U (en) | 2024-04-26 |
Family
ID=90783902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322641696.3U Active CN220857739U (en) | 2023-09-27 | 2023-09-27 | Stator assembly of high-power brushless electronic water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220857739U (en) |
-
2023
- 2023-09-27 CN CN202322641696.3U patent/CN220857739U/en active Active
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