CN201252461Y - DC brushless electric motor stator structure - Google Patents
DC brushless electric motor stator structure Download PDFInfo
- Publication number
- CN201252461Y CN201252461Y CNU2008201209796U CN200820120979U CN201252461Y CN 201252461 Y CN201252461 Y CN 201252461Y CN U2008201209796 U CNU2008201209796 U CN U2008201209796U CN 200820120979 U CN200820120979 U CN 200820120979U CN 201252461 Y CN201252461 Y CN 201252461Y
- Authority
- CN
- China
- Prior art keywords
- determined bit
- coil rack
- motor stator
- wiring board
- stator structure
- 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.)
- Expired - Fee Related
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- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The utility model relates to a brushless electric motor stator structure which belongs to the technical field of electric motor manufacturing. The brushless electric motor stator structure comprises a circuit board and a coil frame fixed with a stator punch piece; the end part of the coil frame and the circuit board form mutually matched installation holes; the end part of the coil frame forms a pre-positioning pin; and the circuit board is provided with a pre-positioning hole corresponding to the pre-positioning pin. The installation hole of the circuit board is easily aligned to the installation hole of the coil frame, the assembly is convenient, and the production efficiency is improved, so the brushless electric motor stator structure solves the problems existing in the prior art that the installation hole of the circuit is difficult to be aligned to the installation hole of the coil frame resulting in slow assembly of circuit boards and low production efficiency, and the like.
Description
Technical field
The utility model relates to a kind of brushless motor stator structure, belongs to the technical field that motor is manufactured.
Technical background
In the prior art, corresponding installing hole is set usually between the coil rack of dc brushless motor stator and the wiring board, installs and fixes together by the coil rack and the wiring board of screw again stator.Yet, wiring board diameter in this kind structure only is slightly less than the casing internal diameter usually, coil rack then is usually located in the casing, during the assembling of conducting transmission line plate and coil rack, need the installing hole on the wiring board is aimed at ability rigging screw with the installing hole on the coil rack, but because wiring board and casing internal diameter are more or less the same, so wiring board is also little easily in the rotation of casing, thereby the installing hole that has caused wiring board is aimed at difficulty with the installing hole on the coil rack, caused the assembling speed between wiring board and the wiring board slower, production efficiency is lower.
Summary of the invention
The utility model purpose is to provide a kind of being easy to that the installing hole of wiring board and the installing hole of coil rack are aimed at, easy to assembly, be beneficial to the dc brushless motor stator structure of enhancing productivity, the installing hole that has solved the wiring board of prior art existence is aimed at difficulty with the installing hole on the coil rack, caused the assembling speed between wiring board and the wiring board slower, problem such as production efficiency is lower.
Above-mentioned technical purpose of the present utility model mainly solves by the following technical programs: it comprises wiring board and the coil rack of fixing with stator punching, form the installing hole that cooperatively interacts between coil rack end and the wiring board, described coil rack end also is formed with the pre-determined bit pin, and described wiring board is provided with and the corresponding pre-determined bit of pre-determined bit pin hole.During the assembling of conducting transmission line plate and coil rack, only need earlier together the pre-determined bit hole on the wiring board and the pre-determined bit pin aligned fit on the coil rack, can realize aiming between the installing hole on installing hole and the coil rack on the wiring board, thereby carry out the assembling of screw, assemble very conveniently, be beneficial to and enhance productivity.
As preferably, the aperture in described pre-determined bit hole is greater than the diameter of pre-determined bit pin.Wherein, the aperture design in pre-determined bit hole is become diameter greater than the pre-determined bit pin, can be convenient to the cooperation between pre-determined bit hole and the pre-determined bit pin on the one hand, can be convenient to the fine setting on the circumferencial direction between wiring board and the coil rack on the other hand, cause the installing hole on the wiring board and the slight misalignment problem of the installing hole on the coil rack thereby overcome factors such as drawing mismachining tolerance, be convenient to the assembling between wiring board and the coil rack.
As preferably, described coil rack end forms thick projection of some contour arcs and the thin projection of arc, installing hole on the described coil rack and pre-determined bit pin be formed on the thick projection respectively and thin projection on; The thickness of described thick projection is greater than the thickness of described thin projection.Wherein, because the pre-determined bit pin only plays the effect of pre-determined bit, so the Position Design at pre-determined bit pin place can be become the thin projection of thinner thickness, and the main fixation to wiring board need be played in the position at coil rack installing hole place, so need it to be designed to the thicker thick projection of thickness, to strengthen to the wiring board reliability of fixation.
As preferably, described pre-determined bit pin end is the frustum structure, when there is slight dislocation in the pre-determined bit hole when cooperating on pre-determined bit pin and the wiring board, the frustum structure of pre-determined bit pin end can make the pre-determined bit pin slip in the pre-determined bit hole of wiring board, thereby is convenient to the assembling between wiring board and the coil rack.
Therefore, the utlity model has in the installing hole of the installing hole of wiring board and coil rack is aimed at, easy to assembly, be beneficial to characteristics such as enhance productivity.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model coil rack;
Fig. 2 is a kind of assembly structure schematic diagram of the present utility model.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: as depicted in figs. 1 and 2, comprise wiring board 1 and the coil rack of fixing with stator punching 2, coil rack 2 ends form four thick projections 4 of arc and three thin projections 5 of arc, the thickness of thick projection 4 is greater than the thickness of thin projection 5, thick projection 4 and thin projection 5 contour and both be arranged alternately, form the installing hole 3 that cooperatively interacts on the thick projection 4 of coil rack 2 and between the wiring board 1, thin projection 5 ends of coil rack 2 are formed with pre-determined bit pin 6, pre-determined bit pin 6 ends are frustum structure 7, wiring board 1 is provided with and pre-determined bit pin 6 corresponding pre-determined bit holes 8, and the aperture in pre-determined bit hole 8 is greater than the diameter of pre-determined bit pin 6.
During assembling, as shown in Figure 2, only need earlier together pre-determined bit pin 6 aligned fit on pre-determined bit hole on the wiring board 18 and the coil rack 2, can realize aiming between the installing hole on installing hole and the coil rack on the wiring board, again screw 9 is screwed into the fixedly assembling that can realize in the installing hole of coil rack 2 between wiring board 1 and the coil rack 2 from the An Kongkong on the circuit.
Claims (5)
1, a kind of dc brushless motor stator structure, comprise wiring board and the coil rack of fixing with stator punching, form the installing hole that cooperatively interacts between coil rack end and the wiring board, it is characterized in that described coil rack end also is formed with the pre-determined bit pin, described wiring board is provided with and the corresponding pre-determined bit of pre-determined bit pin hole.
2, dc brushless motor stator structure according to claim 1 is characterized in that the diameter of the aperture in described pre-determined bit hole greater than the pre-determined bit pin.
3, dc brushless motor stator structure according to claim 1 and 2, it is characterized in that described coil rack end forms the thin projection of the thick projection of some contour arcs and arc, installing hole on the described coil rack and pre-determined bit pin be formed on the thick projection respectively and thin projection on.
4, dc brushless motor stator structure according to claim 3 is characterized in that the thickness of the thickness of described thick projection greater than described thin projection.
5, dc brushless motor stator structure according to claim 1 is characterized in that described pre-determined bit pin end is the frustum structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201209796U CN201252461Y (en) | 2008-07-14 | 2008-07-14 | DC brushless electric motor stator structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201209796U CN201252461Y (en) | 2008-07-14 | 2008-07-14 | DC brushless electric motor stator structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201252461Y true CN201252461Y (en) | 2009-06-03 |
Family
ID=40748124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201209796U Expired - Fee Related CN201252461Y (en) | 2008-07-14 | 2008-07-14 | DC brushless electric motor stator structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201252461Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102403814A (en) * | 2011-11-17 | 2012-04-04 | 许晓华 | Connecting structure of motor stator and stator circuit board |
| CN103862443A (en) * | 2012-12-10 | 2014-06-18 | 株式会社牧田 | Electric tool |
-
2008
- 2008-07-14 CN CNU2008201209796U patent/CN201252461Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102403814A (en) * | 2011-11-17 | 2012-04-04 | 许晓华 | Connecting structure of motor stator and stator circuit board |
| CN103862443A (en) * | 2012-12-10 | 2014-06-18 | 株式会社牧田 | Electric tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090603 Termination date: 20110714 |