CN216016579U - Efficient brushless motor stator three-phase line leading-out structure - Google Patents
Efficient brushless motor stator three-phase line leading-out structure Download PDFInfo
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- CN216016579U CN216016579U CN202121655192.1U CN202121655192U CN216016579U CN 216016579 U CN216016579 U CN 216016579U CN 202121655192 U CN202121655192 U CN 202121655192U CN 216016579 U CN216016579 U CN 216016579U
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Abstract
The utility model relates to a high-efficiency three-phase line leading-out structure of a brushless motor stator, which comprises a stator, wherein the stator is a hollow cylinder, three-phase lines are fixed on the inner ring of the stator, the three-phase lines are provided with leading-out lines, a plurality of stator end plates are arranged on the end surface of one end of the stator along the circumferential direction, the stator end plates are arranged at equal intervals, winding grooves are formed on the stator end plates, notches of the winding grooves are formed on the top surfaces of the stator end plates, the leading-out lines are wound in the winding grooves, contact pins are also inserted in the winding grooves, the contact pins are inserted into the winding grooves from the notches of the winding grooves, grooves are formed in the contact pins, groove notches are formed in the bottom surfaces of the contact pins, the width of the grooves is smaller than the diameter of the leading-out lines, in the process that the contact pins are pressed into the winding grooves, the contact pin can damage the surface layer of the outgoing line to clamp the outgoing line into the groove.
Description
Technical Field
The utility model relates to a high-efficiency brushless motor stator three-phase line leading-out structure.
Background
The traditional brushless motor has the advantages that the joint of the stator three-phase line outgoing line and the contact pin requires that the outgoing line is wound on the contact pin and then spot-welded, or is wound on the contact pin for tin soldering after paint stripping. The former needs a special electric welding machine and is expensive; the latter requires manual stripping and soldering. Both of which are time and labor consuming and increase production costs.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the utility model aims to provide a three-phase line leading-out structure of a brushless motor stator, which can realize the quick combination of a three-phase line leading-out wire and a contact pin.
In order to achieve the purpose, the utility model provides the following technical scheme:
a high-efficiency three-phase line leading-out structure of a brushless motor stator comprises a stator, wherein the stator is a hollow cylinder, three-phase lines are fixed on the inner ring of the stator, the three-phase lines are provided with outgoing lines, a plurality of stator end plates are arranged on the end surface of one end of the stator along the circumferential direction, the stator end plates are arranged at equal intervals, a winding slot is formed on the stator end piece, a notch of the winding slot is opened on the top surface of the stator end piece, the outgoing line is wound in the winding slot, a contact pin is also inserted in the winding groove and inserted into the winding groove from the notch of the winding groove, the pin is formed with a groove therein, the groove is formed with a groove notch on a bottom surface of the pin, a width of the groove is smaller than a diameter of the outgoing line, and in the process that the contact pin is pressed into the winding groove, the contact pin can damage the surface layer of the outgoing line to clamp the outgoing line into the groove.
As an improvement of the utility model, the outgoing line is an enameled wire and comprises a lead and a paint film, the lead is a copper wire, the diameter of the lead is smaller than the width of the groove, the paint film is wrapped outside the lead, and the sum of the diameter of the lead and the thickness of the paint film is larger than the width of the groove.
As a further improvement of the utility model, a through hole is formed in the center of the stator, a silicon steel sheet is fixed on the inner wall of the through hole, an insulating member is fixed on the end of the silicon steel sheet, a clamping groove is formed on the insulating member, and the three-phase wires are embedded in the clamping groove.
As a further improvement of the utility model, the winding groove is a cross groove and comprises a transverse groove and a longitudinal groove which are mutually and vertically crossed, and the contact pin is in a cross shape.
Preferably, the paint film is made of an insulating material.
As a specific technical scheme of the utility model, the stator end plates are made of insulating materials.
As an improvement of the utility model, an insulating sleeve is wrapped outside the three-phase line.
Compared with the prior art, the utility model has the advantages that: utilize the combination design of end piece wire winding groove and contact pin slot, when the contact pin impresses, will destroy the insulating layer of enameled wire for both reach the effect of joint, convenient operation is reliable, has promoted assembly efficiency, saves the cost of labor, has avoided the wasting of resources.
Drawings
Fig. 1 is a schematic overall structure diagram of a three-phase line lead-out structure of a brushless motor stator according to an embodiment of the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a top view of FIG. 1;
fig. 4 is a schematic diagram of the exploded structure of fig. 1.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, which are provided as examples of the present invention and are not intended to limit the present invention.
As shown in the accompanying drawings, the embodiment of the utility model discloses a high-efficiency brushless motor stator three-phase line leading-out structure, which comprises a stator 1, wherein the stator 1 is a hollow cylinder, a through hole 2 is formed in the center of the stator 1, a circle of silicon steel sheets 3 are fixed on the inner wall of the through hole 2 along the circumferential direction, the silicon steel sheets 3 are arranged at equal intervals, insulating pieces 4 are fixed on the end surfaces of two ends of each silicon steel sheet 3, clamping grooves 41 are formed on the insulating pieces 4, three-phase lines 5 are annularly sleeved on the silicon steel sheets 3, and the three-phase lines 5 are simultaneously embedded in the clamping grooves 41 at the upper end and the lower end of each silicon steel sheet 3.
The three-phase line 5 is wrapped by an insulating sleeve, the three-phase line 5 is provided with a leading-out wire 6, the leading-out wire 6 extends outwards from the three-phase line 5, three stator end pieces 9 made of insulating materials are arranged on the end face of the top end of the stator 1 along the circumferential direction, the three stator end pieces 9 are arranged at equal intervals, a winding groove 7 is formed in each stator end piece 9, the notch of each winding groove 7 is formed in the top face of each stator end piece 9, each winding groove 7 is a cross groove, when the winding grooves are overlooked from top to bottom, each winding groove 7 comprises a transverse groove 71 and a longitudinal groove 72 which are perpendicular to each other, a contact pin 8 is inserted in each winding groove 7, and in order to be matched with the winding grooves 7, each contact pin 8 is a cross contact pin.
The groove 81 is formed on the pin 8, the notch of the groove 81 is formed on the bottom surface of the pin 8, the outgoing line 6 is wound in the winding groove 7, the width of the groove 81 is smaller than the diameter of the outgoing line 6, and therefore, in the process that the pin 8 is pressed into the winding groove 7, the pin 8 can break the surface layer of the outgoing line 6 to clamp the outgoing line 8 into the groove. Specifically, the outgoing line 8 is an enameled wire and comprises a wire and a paint film, the wire is a copper wire, the diameter of the wire is close to but slightly smaller than the width of the groove 81, the paint film is made of insulating plastic and wraps the outside of the wire, and the sum of the diameter of the wire and the thickness of the paint film is larger than the width of the groove 81. During the insertion of the pin 8 into the winding groove 7, the two side walls of the groove 81 press and rub the paint film to break the paint film, when the paint film breaks, the inner wire is exposed and contacts with the groove wall of the groove 81, the pin 8 is made of copper, and when the pin 8 contacts with the wire, the pin 8 is electrically connected with the wire.
Compared with the traditional process, the process for jointing the outgoing line 6 and the contact pin 8 of the embodiment is that the winding groove 7 is directly formed in the stator end piece 9, the outgoing line 6 of each phase directly passes through the winding groove 7, the contact pin 8 with the groove 81 is directly pressed in after winding is completed, the width of the groove is smaller than the diameter of an enameled wire, an insulating paint film of the enameled wire is damaged while pressing in, the jointing effect is achieved, and the subsequent process of spot welding or paint stripping and soldering is not needed.
In addition to the above, the present invention may have other embodiments, which are not described in detail herein. But all the technical solutions formed by equivalent substitutions or equivalent transformations belong to the protection scope of the claims of the present invention.
Claims (7)
1. The utility model provides an efficient brushless motor stator three-phase line extraction structure, including the stator, the stator is hollow cylinder the inner circle of stator is fixing the three-phase line, the three-phase line has the lead-out wire be provided with a plurality of stator end pieces along circumference on the terminal surface of stator one end, these stator end pieces are equidistant to be arranged its characterized in that: the stator end piece is provided with a winding groove, the notch of the winding groove is formed in the top surface of the stator end piece, the outgoing line is wound in the winding groove, a contact pin is further inserted in the winding groove, the contact pin is inserted into the winding groove from the notch of the winding groove, a groove is formed in the contact pin, the groove is formed in the bottom surface of the contact pin, the width of the groove is smaller than the diameter of the outgoing line, the contact pin is pressed into the winding groove, and the contact pin can damage the surface layer of the outgoing line and clamp the outgoing line into the groove.
2. The efficient three-phase lead-out structure of the brushless motor stator according to claim 1, wherein: the outgoing line is an enameled wire and comprises a wire and a paint film, the wire is a copper wire, the diameter of the wire is smaller than the width of the groove, the paint film is wrapped outside the wire, and the sum of the diameter of the wire and the thickness of the paint film is larger than the width of the groove.
3. The efficient three-phase lead-out structure of the brushless motor stator according to claim 2, wherein: the stator is characterized in that a through hole is formed in the center of the stator, a silicon steel sheet is fixed on the inner wall of the through hole, an insulating piece is fixed at the end of the silicon steel sheet, a clamping groove is formed in the insulating piece, and the three-phase line is embedded in the clamping groove.
4. The efficient three-phase lead-out structure of the brushless motor stator according to claim 3, wherein: the wire winding groove is a cross groove and comprises a transverse groove and a longitudinal groove which are perpendicular to each other, and the contact pin is in a cross shape.
5. The efficient three-phase lead-out structure of the brushless motor stator according to claim 2, wherein: the paint film is made of an insulating material.
6. The efficient three-phase lead-out structure of the brushless motor stator according to claim 1, wherein: the stator end plates are made of an insulating material.
7. The efficient three-phase lead-out structure of the brushless motor stator according to claim 1, wherein: and an insulating sleeve is wrapped outside the three-phase line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121655192.1U CN216016579U (en) | 2021-07-21 | 2021-07-21 | Efficient brushless motor stator three-phase line leading-out structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121655192.1U CN216016579U (en) | 2021-07-21 | 2021-07-21 | Efficient brushless motor stator three-phase line leading-out structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216016579U true CN216016579U (en) | 2022-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121655192.1U Active CN216016579U (en) | 2021-07-21 | 2021-07-21 | Efficient brushless motor stator three-phase line leading-out structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216016579U (en) |
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2021
- 2021-07-21 CN CN202121655192.1U patent/CN216016579U/en active Active
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