CN213072366U - Outer rotor brushless motor encoder installation mechanism - Google Patents
Outer rotor brushless motor encoder installation mechanism Download PDFInfo
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- CN213072366U CN213072366U CN202021895273.4U CN202021895273U CN213072366U CN 213072366 U CN213072366 U CN 213072366U CN 202021895273 U CN202021895273 U CN 202021895273U CN 213072366 U CN213072366 U CN 213072366U
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- brushless motor
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Abstract
The utility model discloses an outer rotor brushless motor encoder installation mechanism, outer rotor brushless motor is including stator and rotor, the center department of rotor is fixed with the pivot, stator and the two normal running fit are passed to the front end of pivot, encoder installation mechanism is including braced frame, stator and rotor are all located in the braced frame, braced frame's front end is fixed with the flange board, stator and flange board fixed connection, the front end of pivot is passed flange board and the two normal running fit, braced frame's rear end is fixed with the back shroud, one side that the back shroud faced the rotor is fixed with the encoder body, the rear end center department of rotor is fixed with the code wheel, the code wheel sets up relatively with the encoder body and has the clearance between the two, when the rotor drives the code wheel operation, borrow the angular position data of encoder body and code wheel and gather. The utility model discloses not only play the support fixed action to outer rotor electric machine, can also be at outer rotor electric machine rear end extension non-contact encoder.
Description
Technical Field
The utility model relates to an external rotor brushless motor especially relates to an external rotor brushless motor encoder installation mechanism.
Background
The common rotary brushless motor has two basic structures of an inner rotor and an outer rotor, a stator coil of the inner rotor brushless motor is arranged outside the motor and a permanent magnet rotor is arranged inside the motor, and when the motor rotates, only an output shaft rotates outside the motor; the brushless motor with the outer rotor is opposite to the brushless motor with the outer rotor, the stator coil is arranged inside, the permanent magnet rotor is arranged outside, and when the motor rotates, the whole motor shell and the output shaft rotate.
In order to improve the control performance of the motor, an encoder is required to be installed on the motor and used for feeding back the position of the rotor, so that a code wheel of the encoder and the rotor of the motor are required to be fixed together to realize synchronous rotation. For the inner rotor brushless motor, the encoder body can be conveniently installed on the rear end cover of the motor, and the coded disc is fixed on the motor shaft extending out of the rear end cover. However, for the outer rotor brushless motor, referring to fig. 1, the rotor 2 and the rotating shaft 3 both rotate relative to the stator 1, and the rear end of the rotor 2 does not have a condition for installing the encoder body, so that the non-hollow encoder cannot be installed on the outer rotor brushless motor in an extended manner.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to prior art's not enough, provide one kind and not only play the support fixed action to outer rotor electric machine, can also be at outer rotor electric machine rear end extension non-contact encoder's external rotor brushless motor encoder installation mechanism.
In order to solve the technical problem, the utility model adopts the following technical scheme.
An outer rotor brushless motor encoder installation mechanism, the outer rotor brushless motor comprises a stator and a rotor, a rotating shaft is fixed at the center of the rotor, the front end of the rotating shaft penetrates through the stator and is in rotating fit with the stator, the encoder mounting mechanism comprises a supporting frame, the stator and the rotor are both arranged in the supporting frame, a flange plate is fixed at the front end of the supporting frame, the stator is fixedly connected with the flange plate, the front end of the rotating shaft penetrates through the flange plate and is in running fit with the flange plate, the rear end of the supporting frame is fixed with a rear cover plate, an encoder body is fixed on one side of the rear cover plate facing the rotor, a coded disc is fixed at the center of the rear end of the rotor, the coded disc and the encoder body are arranged oppositely, a gap is arranged between the coded disc and the encoder body, when the rotor drives the coded disc to operate, angular position data of the rotor is collected by means of inductive matching of the encoder body and the code disc.
Preferably, the support frame comprises four upright posts, and the flange plate is fixed at the front ends of the four upright posts.
Preferably, the motor main loop cable fixedly connected with the stator penetrates through two adjacent upright posts and extends outwards.
Preferably, the rear end of the rotating shaft penetrates through the rotor, and the code wheel is fixed at the rear end of the rotor.
Preferably, the encoder body comprises an encoder interface, the support frame is provided with a clearance notch, and the encoder interface is located in the clearance notch.
The utility model discloses an among the outer rotor brushless motor encoder installation mechanism, the outer rotor brushless motor installation of constituteing stator and rotor through the flange board is fixed at the braced frame inboard, and then plays to support fixed action external rotor electric machine, on this basis, the utility model discloses the rear end center department of rotor is fixed with the code wheel, correspondingly install the encoder body on the back shroud, and make the encoder body with the code wheel sets up relatively, works as during the rotor operation, through the encoder body with the response cooperation of code wheel makes the encoder body can gather in real time the angular position data of rotor, and then realized outer rotor electric machine rear end extension installation non-contact encoder, better satisfied the application demand.
Drawings
Fig. 1 is a structural view of an outer rotor brushless motor;
fig. 2 is a first perspective view of the mounting mechanism of the outer rotor brushless motor encoder of the present invention;
fig. 3 is a second perspective view of the mounting mechanism of the outer rotor brushless motor encoder of the present invention;
fig. 4 is an exploded view of the mounting mechanism of the outer rotor brushless motor encoder of the present invention;
fig. 5 is a second exploded view of the mounting mechanism of the outer rotor brushless motor encoder of the present invention;
fig. 6 is a cross-sectional view of the outer rotor brushless motor encoder mounting mechanism of the present invention.
Detailed Description
The present invention will be described in more detail with reference to the accompanying drawings and examples.
The utility model discloses an outer rotor brushless motor encoder installation mechanism, which is shown by combining figures 1 to 6, the outer rotor brushless motor comprises a stator 1 and a rotor 2, a rotating shaft 3 is fixed at the center of the rotor 2, the front end of the rotating shaft 3 passes through the stator 1 and the stator 1 is in running fit with the rotor, the encoder installation mechanism comprises a supporting frame 4, the stator 1 and the rotor 2 are both arranged in the supporting frame 4, a flange plate 5 is fixed at the front end of the supporting frame 4, the stator 1 is fixedly connected with the flange plate 5, the front end of the rotating shaft 3 passes through the flange plate 5 and the flange plate 5 is in running fit with the flange plate, a rear cover plate 6 is fixed at the rear end of the supporting frame 4, the rear cover plate 6 faces one side of the rotor 2 and is fixed with an encoder body 7, a code disc 8 is fixed at the center of the rear end of the rotor 2, the code disc 8 is arranged opposite to the encoder body 7 with a gap, when the rotor 2 drives the code wheel 8 to operate, the angular position data of the rotor 2 is collected by means of the inductive matching of the encoder body 7 and the code wheel 8.
In the structure, the outer rotor brushless motor that constitutes stator 1 and rotor 2 through flange plate 5 is installed and is fixed at braced frame 4 inboardly, and then plays to support fixed action to outer rotor motor, on this basis the utility model discloses rear end center department of rotor 2 is fixed with code wheel 8, correspondingly install encoder body 7 on the back shroud 6, and make encoder body 7 with code wheel 8 sets up relatively, works as when rotor 2 operates, through encoder body 7 with code wheel 8's response cooperation makes encoder body 7 can gather in real time rotor 2's angular position data, and then has realized outer rotor motor rear end extension installation non-contact encoder, has satisfied the application demand betterly.
Preferably, the supporting frame 4 includes four vertical posts 40, and the flange plate 5 is fixed to front ends of the four vertical posts 40.
For convenience of wiring, in the present embodiment, the motor main circuit cable 9 fixedly connected to the stator 1 passes through two adjacent columns 40 and extends outward.
The code wheel 8 in this embodiment is preferably fixed to a rotating shaft, specifically, the rear end of the rotating shaft 3 passes through the rotor 2, and the code wheel 8 is fixed to the rear end of the rotor 2.
In order to facilitate the insertion of the controller, in this embodiment, the encoder body 7 includes an encoder interface 10, the support frame 4 is provided with a clearance notch 41, and the encoder interface 10 is located in the clearance notch 41.
The utility model discloses an outer rotor brushless motor encoder installation mechanism, it compares prior art's beneficial effect and lies in, the utility model discloses can install the encoder on outer rotor brushless motor, can effectively improve the control accuracy of motor, simultaneously the utility model discloses simple structure, low cost, easily realization are consequently fit for popularizing and applying in outer rotor brushless motor.
The above is only the embodiment of the present invention, and is not intended to limit the present invention, and all modifications, equivalent replacements or improvements made within the technical scope of the present invention should be included within the protection scope of the present invention.
Claims (5)
1. An outer rotor brushless motor encoder installation mechanism comprises a stator (1) and a rotor (2), wherein a rotating shaft (3) is fixed at the center of the rotor (2), the front end of the rotating shaft (3) penetrates through the stator (1) and is in running fit with the stator (1), the outer rotor brushless motor encoder installation mechanism is characterized by comprising a supporting frame (4), the stator (1) and the rotor (2) are both arranged in the supporting frame (4), a flange plate (5) is fixed at the front end of the supporting frame (4), the stator (1) is fixedly connected with the flange plate (5), the front end of the rotating shaft (3) penetrates through the flange plate (5) and is in running fit with the flange plate and the flange plate, a rear cover plate (6) is fixed at the rear end of the supporting frame (4), and an encoder body (7) is fixed on one side, facing the rotor (2), of the rear cover plate (6), a coded disc (8) is fixed at the center of the rear end of the rotor (2), the coded disc (8) and the encoder body (7) are arranged oppositely, a gap is reserved between the coded disc and the encoder body (7), and when the rotor (2) drives the coded disc (8) to operate, angular position data of the rotor (2) are collected through the inductive matching of the encoder body (7) and the coded disc (8).
2. The mounting mechanism for the encoder of the external rotor brushless motor according to claim 1, wherein the supporting frame (4) comprises four pillars (40), and the flange plate (5) is fixed to the front ends of the four pillars (40).
3. The mounting mechanism of the external rotor brushless motor encoder as claimed in claim 2, wherein the motor main loop cable (9) fixedly connected with the stator (1) passes through two adjacent columns (40) and extends outwards.
4. The mounting mechanism of the external rotor brushless motor encoder as claimed in claim 1, wherein the rear end of the rotating shaft (3) passes through the rotor (2), and the code wheel (8) is fixed to the rear end of the rotor (2).
5. The mounting mechanism for the encoder of the external rotor brushless motor according to claim 1, wherein the encoder body (7) comprises an encoder interface (10), the supporting frame (4) is provided with a clearance notch (41), and the encoder interface (10) is located in the clearance notch (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021895273.4U CN213072366U (en) | 2020-09-02 | 2020-09-02 | Outer rotor brushless motor encoder installation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021895273.4U CN213072366U (en) | 2020-09-02 | 2020-09-02 | Outer rotor brushless motor encoder installation mechanism |
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| Publication Number | Publication Date |
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| CN213072366U true CN213072366U (en) | 2021-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021895273.4U Active CN213072366U (en) | 2020-09-02 | 2020-09-02 | Outer rotor brushless motor encoder installation mechanism |
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| CN (1) | CN213072366U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116995867A (en) * | 2023-08-08 | 2023-11-03 | 长广溪智能制造(无锡)有限公司 | Driving and controlling integrated motor system |
-
2020
- 2020-09-02 CN CN202021895273.4U patent/CN213072366U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116995867A (en) * | 2023-08-08 | 2023-11-03 | 长广溪智能制造(无锡)有限公司 | Driving and controlling integrated motor system |
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