CN216819636U - External motor of position detection device - Google Patents
External motor of position detection device Download PDFInfo
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- CN216819636U CN216819636U CN202220252121.5U CN202220252121U CN216819636U CN 216819636 U CN216819636 U CN 216819636U CN 202220252121 U CN202220252121 U CN 202220252121U CN 216819636 U CN216819636 U CN 216819636U
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- magnetic ring
- rotating shaft
- brake disc
- hall
- end cover
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Abstract
The utility model relates to the technical field of electric vehicle motors, in particular to an external motor of a position detection device. The novel brake disc comprises a hub, magnetic steel is arranged on the inner wall face of the hub, a first end cover and a second end cover are respectively connected and arranged at two ends of the hub, a rotating shaft is arranged inside the hub, the rotating shaft is connected with the first end cover and the second end cover through bearings, a winding iron core is arranged on the rotating shaft through a support, a brake disc positioning block is arranged outside the first end cover, the rotating shaft penetrates through the brake disc positioning block, a magnetic ring assembly is arranged inside the brake disc positioning block, and a Hall assembly is arranged on the rotating shaft corresponding to the magnetic ring assembly. When magnetic ring subassembly or hall subassembly take place to damage, demolish the brake disc locating piece, need not to unpack the motor apart completely, can be convenient for the workman and change magnetic ring subassembly or hall subassembly, can also be convenient for the workman efficiency when the equipment. Because the magnetic ring component and the Hall component are both arranged outside the motor, the influence of high temperature, surge and static electricity generated by the winding on the motor is avoided.
Description
Technical Field
The utility model relates to the technical field of electric vehicle motors, in particular to an external motor of a position detection device.
Background
The electric vehicle motor means a driving motor for an electric vehicle. The form is different according to the use environment and the use frequency. The motor of the electric vehicle is generally a permanent magnet direct current motor. The electric vehicle motors are classified according to the electrifying form of the motor, and can be divided into two types, namely a brush motor and a brushless motor; the motor assembly is divided into two categories, namely 'toothed' (the motor has high rotating speed and needs to be decelerated by a gear) and 'toothless' (the motor torque output does not undergo any deceleration), according to the mechanical structure of the motor assembly.
The position sensor is an important component in the motor, has the function of measuring the position of a rotor magnetic pole and provides commutation information for a circuit switch. The existing position sensor is usually installed in the motor, and is installed in the motor, so that the replacement is inconvenient, and meanwhile, the internal winding signal can also cause interference to the position sensor, so that the inconvenience is greatly brought.
The above problems are problems that the art needs to solve.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an external motor of a position detection device, so that a position sensor is convenient to replace, and interference is avoided.
In order to solve the technical problem, the utility model provides the following scheme: the utility model provides an external motor of position detection device, includes wheel hub, be provided with the magnet steel on the wheel hub internal face, wheel hub both ends are connected respectively and are provided with first end cover and second end cover, the inside pivot that is provided with of wheel hub, the pivot pass through the bearing with first end cover with the second end cover is connected, be provided with the winding iron core through the support in the pivot, first end cover outside is provided with the brake disc locating piece, the pivot is passed the brake disc locating piece, the inside magnet ring subassembly that is provided with of brake disc locating piece, correspond in the pivot the magnet ring subassembly is provided with hall subassembly.
As a further improvement of the utility model, the magnetic ring assembly comprises a magnetic ring sleeve connected with the brake disc positioning block, and a signal magnetic ring is arranged on the magnetic ring sleeve.
As a further improvement of the utility model, the Hall assembly comprises a PCB arranged on the rotating shaft, a Hall support is arranged on the PCB, and a Hall element is arranged on the Hall support.
As a further improvement of the utility model, a built-in bearing connected with the rotating shaft is arranged inside the brake disc positioning block.
As a further improvement of the utility model, the PCB is connected with the rotating shaft through a first connecting piece.
As a further improvement of the utility model, the brake disc positioning block is connected with the first end cover through a second connecting piece.
The utility model has the beneficial effects that:
the utility model has reasonable and simple structure and convenient and fast operation, the combination of the magnetic ring component and the Hall component can form the position sensor, when the magnetic ring component or the Hall component is damaged, the magnetic ring component and the Hall component are exposed outside only by detaching the brake disc positioning block, so that a motor does not need to be completely detached, a worker can conveniently replace the magnetic ring component or the Hall component, and meanwhile, the efficiency of the worker in assembling can be facilitated. Because magnetic ring subassembly and hall subassembly all are installed outside the motor, and then can keep away from the inside winding of motor, avoided the influence that high temperature, surge and static that the winding produced led to the fact to it. Therefore, the efficiency of workers during disassembly and assembly can be greatly improved, the overall operation effect is improved, and the stability during operation is greatly improved.
Drawings
FIG. 1 is a cross-sectional view of the present invention;
fig. 2 is an enlarged schematic view of a portion a in fig. 1.
Reference numerals: 1. a hub; 2. a first end cap; 3. a second end cap; 4. a rotating shaft; 5. a bearing; 6. a support; 7. a winding core; 8. magnetic steel; 9. a brake disc positioning block; 10. a magnetic ring assembly; 101. a magnetic ring sleeve; 102. a signal magnetic ring; 11. a Hall assembly; 111. a PCB board; 112. a Hall bracket; 113. a Hall element; 12. a bearing is arranged inside; 13. a first connecting member; 14. a second connecting member.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
Referring to fig. 1, an embodiment of the present invention includes a hub 1, a magnetic steel 8 is disposed on an inner wall surface of the hub 1, a first end cap 2 and a second end cap 3 are respectively connected to two ends of the hub 1, a rotating shaft 4 is disposed inside the hub 1, the rotating shaft 4 is connected to the first end cap 2 and the second end cap 3 through a bearing 5, a winding iron core 7 is disposed on the rotating shaft 4 through a bracket 6, a brake disc positioning block 9 is disposed outside the first end cap 2, the rotating shaft 4 penetrates through the brake disc positioning block 9, a magnetic ring assembly 10 is disposed inside the brake disc positioning block 9, and a hall assembly 11 is disposed on the rotating shaft 4 corresponding to the magnetic ring assembly 10. The combination of magnetic ring subassembly 10 and hall subassembly 11 can constitute position sensor, when magnetic ring subassembly 10 or hall subassembly 11 take place to damage, only need demolish brake disc locating piece 9, and magnetic ring subassembly 10 and hall subassembly 11 just expose externally this moment to need not to unpack the motor apart completely, can be convenient for the workman and change magnetic ring subassembly 10 or hall subassembly 11, the workman's efficiency when the equipment of can also being convenient for simultaneously. Because the magnetic ring component 10 and the Hall component 11 are both arranged outside the motor, the magnetic ring component and the Hall component can be further far away from the winding inside the motor, and the influence of high temperature, surge and static electricity generated by the winding on the magnetic ring component and the Hall component is avoided. Therefore, the efficiency of workers during disassembly and assembly can be greatly improved, the overall operation effect is improved, and the stability during operation is greatly improved.
In this embodiment, the magnetic ring assembly 10 includes a magnetic ring sleeve 101 connected to the brake disc positioning block 9, and a signal magnetic ring 102 is disposed on the magnetic ring sleeve 101. The hall assembly 11 includes a PCB 111 disposed on the rotating shaft 4, a hall bracket 112 is disposed on the PCB 111, and a hall element 113 is disposed on the hall bracket 112. The brake disc positioning block 9 rotates to drive the signal magnetic ring 102 to rotate, and at the moment, the hall element 113 senses the magnetic flux change of the signal magnetic ring 102, so that the positioning function can be achieved.
In this embodiment, the brake disc positioning block 9 is internally provided with a built-in bearing 12 connected with the rotating shaft 4. Through the effect of built-in bearing 12, can effectively improve the concentricity and the intensity of brake disc locating piece 9 for brake disc locating piece 9 can move more stably, great improvement life-span of using.
In this embodiment, the PCB 111 is connected to the rotation shaft 4 through the first connection member 13 in order to facilitate the detachment and installation of the PCB 111. The first connecting member 13 is usually a bolt, and when the first connecting member 13 is detached and replaced, the PCB 111 can be detached and replaced only by tightening the first connecting member 13.
In this embodiment, in order to facilitate the detachment of the brake disc positioning block 9, the brake disc positioning block 9 is connected to the first end cover 2 through the second connecting member 14. The second connecting piece 14 usually adopts a bolt, and when the magnetic ring assembly 10 or the hall assembly 11 needs to be replaced, only the bolt needs to be loosened to separate the brake disc positioning block 9 from the first end cover 2, so that the convenience of disassembly is greatly improved.
In actual work, when magnetic ring subassembly 10 or hall subassembly 11 take place to damage, when needing to be changed, only need loosen second connecting piece 14 and demolish brake disc locating piece 9, magnetic ring subassembly 10 and hall subassembly 11 just expose externally this moment to need not to unpack the motor apart completely, can be convenient for the workman and change magnetic ring subassembly 10 or hall subassembly 11. Because the magnetic ring component 10 and the Hall component 11 are both arranged outside the motor, the magnetic ring component and the Hall component can be further far away from the winding inside the motor, and the influence of high temperature, surge and static electricity generated by the winding on the magnetic ring component and the Hall component is avoided. Therefore, the efficiency of workers during disassembly and assembly can be greatly improved, the overall operation effect is improved, and the stability during operation is greatly improved.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
As used herein, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used in the positional or orientational relationship illustrated in the figures to facilitate the description of the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the utility model.
The appearances of the terms first, second, and third, if any, are used for descriptive purposes only and are not intended to be limiting or imply relative importance.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or any other related technical fields, are included in the scope of the present invention.
Claims (6)
1. An external motor of a position detection device is characterized by comprising a wheel hub (1), the inner wall surface of the wheel hub (1) is provided with magnetic steel (8), the two ends of the wheel hub (1) are respectively connected with a first end cover (2) and a second end cover (3), a rotating shaft (4) is arranged in the hub (1), the rotating shaft (4) is connected with the first end cover (2) and the second end cover (3) through a bearing (5), a winding iron core (7) is arranged on the rotating shaft (4) through a bracket (6), a brake disc positioning block (9) is arranged outside the first end cover (2), the rotating shaft (4) penetrates through the brake disc positioning block (9), a magnetic ring assembly (10) is arranged inside the brake disc positioning block (9), and a Hall assembly (11) is arranged on the rotating shaft (4) corresponding to the magnetic ring assembly (10).
2. The external motor for the position detection device according to claim 1, wherein the magnetic ring assembly (10) comprises a magnetic ring sleeve (101) connected with the brake disc positioning block (9), and a signal magnetic ring (102) is arranged on the magnetic ring sleeve (101).
3. The external motor for the position detection device according to claim 1, wherein the hall assembly (11) comprises a PCB (111) disposed on the rotating shaft (4), a hall bracket (112) is disposed on the PCB (111), and a hall element (113) is disposed on the hall bracket (112).
4. The external motor for the position detection device according to claim 1, wherein the brake disc positioning block (9) is internally provided with an internal bearing (12) connected with the rotating shaft (4).
5. The external motor for a position detection device according to claim 3, wherein the PCB (111) is connected to the rotating shaft (4) through a first connecting member (13).
6. The external motor of a position detection device according to claim 1, characterized in that the brake disc positioning block (9) is connected with the first end cover (2) through a second connecting piece (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220252121.5U CN216819636U (en) | 2022-01-28 | 2022-01-28 | External motor of position detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220252121.5U CN216819636U (en) | 2022-01-28 | 2022-01-28 | External motor of position detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216819636U true CN216819636U (en) | 2022-06-24 |
Family
ID=82042185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220252121.5U Active CN216819636U (en) | 2022-01-28 | 2022-01-28 | External motor of position detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216819636U (en) |
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2022
- 2022-01-28 CN CN202220252121.5U patent/CN216819636U/en active Active
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