CN108397398B - Fixing structure of brushless electric water pump driving plate - Google Patents
Fixing structure of brushless electric water pump driving plate Download PDFInfo
- Publication number
- CN108397398B CN108397398B CN201810407733.5A CN201810407733A CN108397398B CN 108397398 B CN108397398 B CN 108397398B CN 201810407733 A CN201810407733 A CN 201810407733A CN 108397398 B CN108397398 B CN 108397398B
- Authority
- CN
- China
- Prior art keywords
- clamping
- driving plate
- pump body
- rod
- rods
- 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.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 230000002093 peripheral effect Effects 0.000 claims abstract description 6
- 238000002347 injection Methods 0.000 claims abstract description 5
- 239000007924 injection Substances 0.000 claims abstract description 5
- 230000000903 blocking effect Effects 0.000 claims description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 8
- 239000011889 copper foil Substances 0.000 abstract description 8
- 238000004804 winding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a fixing structure of a brushless electric water pump driving plate, wherein the driving plate is fixedly connected in a pump body in a clamping manner by a clamping rod integrally formed in the pump body. A circle of clamping rods which are arranged at equal intervals along the circumferential direction are arranged on the inner cavity wall of the pump body, and the clamping rods and the pump body are integrally injection molded; a circle of clamping grooves are formed in the driving plate at equal intervals along the peripheral edge, the positions where the clamping grooves are formed are the positions on the driving plate, no circuit is affirmed, and the problem that copper foil is exposed does not occur in the arrangement of the clamping grooves. And compared with a screw connection mode, each clamping groove of the driving plate is correspondingly clamped with each clamping rod, the clamping mode is simpler to assemble, and the problem that the copper foil of the driving plate is possibly exposed is also avoided.
Description
Technical Field
The invention relates to a water pump, in particular to a fixing structure of a driving plate of a brushless electric water pump.
Background
The driving plate of the brushless electric water pump is electrically connected with the stator winding, and the stator winding generates a rotating magnetic field under the control of the driving plate. The drive plate is typically mounted in the pump body by means of a screw assembly. With the screw assembly, the surface of the driving board is inevitably damaged, which results in exposure of the copper foil, thereby causing problems of oxidation of the copper foil or failure of the driving board.
Disclosure of Invention
The invention aims to solve the technical problem of providing a fixing structure of a driving plate of a brushless electric water pump, wherein the surface of the driving plate is lossless and stable.
The technical scheme for achieving the purpose of the invention is that the driving plate of the brushless electric water pump is fixedly connected in the pump body in a clamping mode by clamping a clamping rod integrally formed in the pump body.
More than three clamping rods are arranged at equal intervals along the circumferential direction at the bottom of the inner cavity of the pump body; the clamping rods comprise rod bodies and blocking protrusions, the blocking protrusions are arranged on the upper portions of the rod bodies, and the blocking protrusions of each clamping rod face the central axis of the pump body.
The drive plate sets up the draw-in groove along equidistant the peripheral border, and the quantity of draw-in groove is the same with the quantity of draw-in lever, and the shape and the size of draw-in groove and the shape size phase-match of the body of rod of draw-in lever.
The drive plate is located the centre of draw-in bar, and each draw-in groove and the draw-in bar joint that corresponds of drive plate to the upper surface of drive plate is located the bellied lower part hypotenuse of blocking of draw-in bar.
The circumference around which the clamping rods are arranged is coaxial with the pump body, and the clamping rods and the pump body are integrally injection molded.
A semicircular cavity is formed in the bottom of each clamping groove, which is close to the center of the driving plate, and two sides of each clamping groove are respectively provided with a semicircular cavity.
The width L2 of the clamping rod is slightly larger than the groove width L1 of the clamping groove of the driving plate.
The invention has the positive effects that: (1) When the driving plate is fixed, a circle of clamping rods which are arranged at equal intervals along the circumferential direction are arranged on the inner cavity wall of the pump body, and the clamping rods and the pump body are integrally injection molded; a circle of clamping grooves are formed in the driving plate at equal intervals along the peripheral edge, the positions where the clamping grooves are formed are the positions on the driving plate, no circuit is affirmed, and the problem that copper foil is exposed does not occur in the arrangement of the clamping grooves.
Each clamping groove of the driving plate corresponds to each clamping rod in a clamping manner, and the width of each clamping rod is larger than that of each clamping groove, so that the driving plate is convenient to pre-assemble, and the clamping rods are in interference fit with the clamping grooves, so that the driving plate is fixed inside the pump body. Compared with a screw connection mode, the clamping mode is simpler to assemble, and the problem that a copper foil of a driving plate is exposed possibly is avoided.
(2) And each clamping rod is further provided with a blocking protrusion, and the upper surface of the driving plate is positioned below the blocking protrusion (seen from the direction of fig. 1), so that even if the water pump vibrates severely, the problem that the driving plate is shifted or removed from the clamping rod does not exist.
Drawings
FIG. 1 is a schematic view of a fixing structure of the present invention;
FIG. 2 is a top view of the arrangement of the clamping bars in the pump body;
FIG. 3 is a schematic view of the structure of the clamping rod;
FIG. 4 is a top view of the drive plate;
FIG. 5 is a force diagram of the driving plate when fixed;
the labels in the above figures are as follows:
pump body 1, clamping rod 2, body of rod 21 blocks protruding 22, drive plate 3, draw-in groove 31, semicircle cavity 32.
Detailed Description
Example 1
Referring to fig. 1 to 4, in the fixing structure of the driving plate of the brushless electric water pump of the present embodiment, the driving plate 3 is fixedly connected inside the pump body 1 by being clamped with the clamping rod 2 integrally formed inside the pump body 1.
The driving plate 3 is electrically connected with the stator winding of the water pump, and the driving plate 3 is arranged at the bottom of the inner cavity of the pump body 1.
Referring to fig. 2, more than 3 clamping rods 2 (for example, 4 clamping rods in the embodiment) are arranged at equal intervals along the circumferential direction at the bottom of the inner cavity of the pump body 1. The circumference around which the clamping rods 2 are arranged is coaxial with the pump body 1. The clamping rod 2 and the pump body 1 are integrally injection molded.
Referring to fig. 3, the clamping rod 2 includes a rod body 21 and a blocking protrusion 22, where the rod body 21 is in a strip shape and is in a cuboid shape. The blocking projections 22 are provided at the upper portion of the rod body 21, and the blocking projection 22 of each clip lever 2 faces the central axis of the pump body 1. The blocking protrusion 22 in the present embodiment has a triangular cross section, and the blocking protrusion 22 may have other shapes such as a hemispherical shape.
Referring to fig. 4, the driving plate 3 is disc-shaped, and a circle of clamping grooves 31 are arranged at equal intervals along the peripheral edge, and the number of the clamping grooves 31 is the same as the number of the clamping rods 2. The shape and size of the clamping groove 31 are matched with those of the rod body 21 of the clamping rod 2. A semicircular cavity 32 is formed at the bottom of each slot 31 near the center of the driving plate 3.
The width L2 of the clamping rod 2 is slightly larger than the groove width L1 of the clamping groove 31 of the driving plate 3, so that the driving plate 3 is convenient to pre-assemble.
The clamping rod 2 is an engineering plastic piece and has certain deformation resetting capability.
The driving plate 3 is placed in the middle of the four clamping rods 2, each clamping groove 31 of the driving plate 3 is clamped with the corresponding clamping rod 2, and the upper surface of the driving plate 3 is positioned at the lower part of the lower oblique side of the blocking protrusion 22 of the clamping rod 2.
Referring to fig. 5, after the driving plate is assembled, the clamping rod 2 is in a deformed state, and at this time, the driving plate 3 is subjected to pressure of the clamping rod 2, and the pressure is divided into two directions: one is a downward pressure perpendicular to the surface of the drive plate 3, which force prevents the drive plate from axially falling off; a pressure parallel to the drive plate, which force prevents the drive plate 3 from being displaced radially.
A circle of clamping grooves are formed in the driving plate at equal intervals along the peripheral edge, the positions where the clamping grooves are formed are the positions on the driving plate, no circuit is affirmed, and the problem that copper foil is exposed does not occur in the arrangement of the clamping grooves.
In the fixing structure of this embodiment, each draw-in groove of drive plate corresponds with each clamping rod joint, compares in the screw connection mode, and the joint mode assembly is simpler, has also avoided the possible copper foil of drive plate to expose the problem. On each of the clamping bars 2, a blocking protrusion 22 is further provided, and the upper surface of the driving plate 3 is positioned below the blocking protrusion 22 (seen from the direction of fig. 1), so that even if the water pump vibrates severely, the problem that the driving plate is shifted or removed from the clamping bar does not occur.
Claims (1)
1. A fixed knot of brushless electric water pump drive plate constructs, its characterized in that: the driving plate (3) is fixedly connected in the pump body (1) in a clamping way by a clamping rod (2) integrally formed in the pump body (1);
the clamping rods (2) are arranged at equal intervals along the circumferential direction at the bottom of the inner cavity of the pump body (1), the circumference around which the clamping rods (2) are arranged is coaxial with the pump body (1), and the clamping rods (2) and the pump body (1) are integrally injection molded; the clamping rods (2) comprise rod bodies (21) and blocking protrusions (22), the blocking protrusions (22) are arranged on the upper parts of the rod bodies (21), and the blocking protrusions (22) of each clamping rod (2) face the central axis of the pump body (1);
the driving plate (3) is provided with clamping grooves (31) at equal intervals along the peripheral edge, the number of the clamping grooves (31) is the same as that of the clamping rods (2), and the shape and the size of the clamping grooves (31) are matched with those of rod bodies (21) of the clamping rods (2); a semicircular cavity (32) is formed at the bottom of each clamping groove (31) close to the center of the driving plate (3) and at two sides;
the width L2 of the clamping rod (2) is slightly larger than the groove width L1 of the clamping groove (31) of the driving plate (3);
the driving plate (3) is positioned in the middle of the clamping rod (2), each clamping groove (31) of the driving plate (3) is clamped with the corresponding clamping rod (2), and the upper surface of the driving plate (3) is positioned at the lower part of the lower inclined edge of the blocking protrusion (22) of the clamping rod (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810407733.5A CN108397398B (en) | 2018-05-02 | 2018-05-02 | Fixing structure of brushless electric water pump driving plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810407733.5A CN108397398B (en) | 2018-05-02 | 2018-05-02 | Fixing structure of brushless electric water pump driving plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108397398A CN108397398A (en) | 2018-08-14 |
| CN108397398B true CN108397398B (en) | 2024-03-22 |
Family
ID=63100921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810407733.5A Active CN108397398B (en) | 2018-05-02 | 2018-05-02 | Fixing structure of brushless electric water pump driving plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108397398B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1147602A (en) * | 1995-10-10 | 1997-04-16 | 谢新茂 | Miniature brush-less fan |
| TW423615U (en) * | 2000-03-31 | 2001-02-21 | Adda Corp | Improved fan structure for simple stator mounting |
| CN2692907Y (en) * | 2004-03-23 | 2005-04-13 | 张越仁 | Electric car wheel case type brushless electric machine with side nondestructive outlet device |
| CN201991800U (en) * | 2011-01-14 | 2011-09-28 | 惠州仁海实业发展有限公司 | Direct current fan |
| CN105927561A (en) * | 2016-04-21 | 2016-09-07 | 深圳市风酷电子科技有限公司 | Direct-current brushless fan and structure for preventing rotor from flying off |
| CN208236677U (en) * | 2018-05-02 | 2018-12-14 | 常州市东南电器电机股份有限公司 | A kind of fixed structure of brushless electric water pump driving plate |
-
2018
- 2018-05-02 CN CN201810407733.5A patent/CN108397398B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1147602A (en) * | 1995-10-10 | 1997-04-16 | 谢新茂 | Miniature brush-less fan |
| TW423615U (en) * | 2000-03-31 | 2001-02-21 | Adda Corp | Improved fan structure for simple stator mounting |
| CN2692907Y (en) * | 2004-03-23 | 2005-04-13 | 张越仁 | Electric car wheel case type brushless electric machine with side nondestructive outlet device |
| CN201991800U (en) * | 2011-01-14 | 2011-09-28 | 惠州仁海实业发展有限公司 | Direct current fan |
| CN105927561A (en) * | 2016-04-21 | 2016-09-07 | 深圳市风酷电子科技有限公司 | Direct-current brushless fan and structure for preventing rotor from flying off |
| CN208236677U (en) * | 2018-05-02 | 2018-12-14 | 常州市东南电器电机股份有限公司 | A kind of fixed structure of brushless electric water pump driving plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108397398A (en) | 2018-08-14 |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 213004 No. 13 Lihuabei Road, Tianning District, Changzhou City, Jiangsu Province Applicant after: Changzhou Southeast Electric Appliance & Motor Co.,Ltd. Address before: 213004 No. 13 Lihuabei Road, Tianning District, Changzhou City, Jiangsu Province Applicant before: CHANGZHOU DONGNAN ELECTRICAL APPLIANCE MOTOR Co.,Ltd. |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |