CN117175863B - Motor angle sensor assembly structure - Google Patents
Motor angle sensor assembly structure Download PDFInfo
- Publication number
- CN117175863B CN117175863B CN202311456809.0A CN202311456809A CN117175863B CN 117175863 B CN117175863 B CN 117175863B CN 202311456809 A CN202311456809 A CN 202311456809A CN 117175863 B CN117175863 B CN 117175863B
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- circuit board
- screw nut
- connecting rod
- nut anti
- signal connecting
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- 238000000034 method Methods 0.000 claims abstract description 17
- 230000008569 process Effects 0.000 claims abstract description 14
- 238000003466 welding Methods 0.000 claims abstract description 8
- 238000007747 plating Methods 0.000 claims description 9
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 4
- 229910052737 gold Inorganic materials 0.000 claims description 4
- 239000010931 gold Substances 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 239000004332 silver Substances 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000001746 injection moulding Methods 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 9
- 238000009713 electroplating Methods 0.000 description 4
- 238000004806 packaging method and process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Abstract
The invention discloses a motor angle sensor assembly structure, which comprises: the motor casing sets up the signal connection pole in the motor casing, and signal connection pole upper end sets up the controller casing rather than the cooperation installation, and the lower tip of signal connection pole sets up the lead screw nut anti-rotation cover rather than the cooperation installation, and the controller casing sets up the controller circuit board, and lead screw nut anti-rotation cover connection sensor circuit board, and the cooperation of controller casing and lead screw nut anti-rotation cover is used for positioning signal connection pole. The motor angle sensor assembly structure only needs to use the independent signal connecting rod with the spring pins at two ends to connect the sensor circuit board and the controller circuit board, and compared with the assembly mode of the eddy current angle sensor in the prior art, the assembly structure is convenient for positioning each part, can reduce the procedures of multiple insert injection molding, welding or press fitting of the sensor stator assembly, has simple process and reduces the manufacturing cost.
Description
Technical Field
The invention relates to the technical field of electric control braking, in particular to an assembly structure of a motor angle sensor.
Background
An angle sensor is usually required to be used in a motor of an electric control braking system to provide an accurate rotor angle feedback signal, so that braking torque control, braking balance and adjustment and braking state monitoring are realized, and the performance, stability and safety of the braking system are improved. The eddy current angle sensor has the advantages of high sensitivity, strong anti-interference capability and the like, and is widely applied to an electric control braking system.
In the assembly process of the eddy current angle sensor in the prior art, the sensor stator assembly is not easy to position, and the sensor stator assembly is required to be subjected to insert injection molding, welding or press fitting for many times, so that the manufacturing process is complex, and the manufacturing cost is high; the conductive column in the sensor stator assembly extends out of the body for a long time, and the contact position hardly meets the precision requirement when the sensor stator assembly is installed in an electric control brake system; in addition, the spring pad on the circuit board adopts an integral silver plating or gold plating process, so that the economic cost is high.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides an assembling structure of a motor angle sensor.
In order to achieve the above purpose, the present invention adopts the following technical scheme: a motor angle sensor assembly structure, comprising: the motor comprises a motor housing, wherein a signal connecting rod is arranged in the motor housing, a controller housing matched with the signal connecting rod is arranged at the upper end of the signal connecting rod, a screw nut anti-rotation sleeve matched with the signal connecting rod is arranged at the lower end of the signal connecting rod, a controller circuit board is arranged on the controller housing, the screw nut anti-rotation sleeve is connected with the sensor circuit board, and the controller housing is matched with the screw nut anti-rotation sleeve to be used for positioning the signal connecting rod.
As a further description of the above technical solution: the controller shell and the screw nut anti-rotation sleeve are provided with conical hole structures which are matched with the signal connecting rod.
As a further description of the above technical solution: the screw nut anti-rotation sleeve is provided with a plurality of protruding portions, and the protruding portions are in interference fit with the sensor circuit board.
As a further description of the above technical solution: the screw nut anti-rotation sleeve is provided with a positioning column and an error-proof column.
As a further description of the above technical solution: the screw nut anti-rotation sleeve is used for fixing the back-off of the sensor circuit board.
As a further description of the above technical solution: the signal connecting rod is provided with a signal component, and the signal component comprises a spring needle.
As a further description of the above technical solution: the sensor circuit board and the controller circuit board are provided with gaskets, and the gaskets are pressed with the spring needles.
As a further description of the above technical solution: and the welding surface of the gasket adopts a tinning process.
As a further description of the above technical solution: the press-fit surface of the gasket adopts silver plating or gold plating technology.
As a further description of the above technical solution: the signal connecting rod is provided with a side arm.
The technical scheme has the following advantages or beneficial effects:
1. this motor angle sensor assembly structure only needs to use the signal connection pole that independent both ends had the bullet needle to connect sensor circuit board and controller circuit board, compares the assembly methods of current vortex angle sensor among the prior art, makes things convenient for the location of each part, can reduce the process that sensor stator module inserts many times, welds or pressure equipment, simple process, reduction in manufacturing cost.
2. The sensor circuit board and the lower end part of the signal connecting rod can be fixed by means of the motor shell and the screw nut anti-rotation sleeve, and other fixing parts such as bolts and rivets are not needed to be additionally used for fixing, so that the material cost is reduced.
3. By adopting the independent signal connecting rod, the upper end and the lower end can be respectively positioned through the conical hole structure on the controller shell and the screw nut anti-rotation sleeve, the mounting height can be positioned between the valve block and the screw nut anti-rotation sleeve through the side arm clamp, and other structures of the signal connecting rod are kept away from positions, so that the processing difficulty and the assembly difficulty can be reduced.
4. Compared with an integrated sensor, the independent signal connecting rod is convenient for packaging, storing and transporting, and reduces the operation cost of packaging, transporting and the like.
5. The gasket adopts double-sided different electroplating processes, so that the requirements on welding and signal transmission stability are met, and the electroplating cost of the gasket is reduced.
6. The protruding part on the screw nut anti-rotation sleeve can eliminate the normal fit clearance of the sensor circuit board in a crushing mode, so that the accuracy of the signal connecting rod when the signal connecting rod is installed in an electric control brake system is improved.
Drawings
Fig. 1 is a perspective view of an assembly structure of a motor angle sensor according to the present invention;
FIG. 2 is a cross-sectional view of a motor angle sensor assembly structure according to the present invention;
FIG. 3 is an enlarged view of FIG. 2 at A;
FIG. 4 is an enlarged view at B in FIG. 3;
FIG. 5 is an exploded view of the circuit board sensor, lead screw nut anti-rotation sleeve and signal connection rod of FIG. 4;
FIG. 6 is a schematic view of the lead screw nut anti-rotation sleeve of FIG. 5;
FIG. 7 is a schematic diagram of the circuit board sensor of FIG. 5 after assembly with the lead screw nut anti-rotation sleeve;
FIG. 8 is a schematic view of the lead screw nut anti-rotation sleeve of FIG. 5;
FIG. 9 is an enlarged view of FIG. 8 at C;
FIG. 10 is a schematic view of the signal connection rod of FIG. 5;
fig. 11 is an exploded view of the signal connection rod of fig. 10.
Legend description:
1. a controller housing; 11. an upper cover; 12. a controller circuit board; 13. a first positioning hole; 2. a valve block; 3. a motor housing; 31. a support part; 4. a sensor circuit board; 5. a screw nut anti-rotation sleeve; 51. a boss; 52. positioning columns; 53. an error-proof column; 54. reversing; 55. a second positioning hole; 56. a clamping groove; 6. a signal connecting rod; 61. a bracket; 62. an upper fixing cover; 63. a lower fixing cover; 64. a side arm; 66. a signal assembly; 67. a spring needle; 7. a gasket; 8. a rotor.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-3, one embodiment provided by the present invention is: a motor angle sensor assembly structure, comprising: the motor casing 3, motor casing 3 has valve piece 2 through bolted connection, sets up signal connection pole 6 in the motor casing 3, and signal connection pole 6 runs through valve piece 2, and signal connection pole 6 upper end sets up rather than the controller casing 1 of cooperation installation, and controller casing 1 passes through the bolt fastening with valve piece 2, and signal connection pole 6 lower tip sets up rather than the screw nut anti-rotation cover 5 of cooperation installation, and screw nut anti-rotation cover 5 card is in the mounting groove of motor casing 3.
Referring to fig. 3 and 8-9, the controller housing 1 and the screw nut anti-rotation sleeve 5 are provided with tapered hole structures which are matched with the signal connecting rod 6, the tapered hole structures are first positioning holes 13 in the controller housing 1, second positioning holes 55 in the screw nut anti-rotation sleeve 5, when the screw nut anti-rotation sleeve is installed, the upper end of the signal connecting rod 6 is clamped into the first positioning holes 13, the lower end of the signal connecting rod is clamped into the second positioning holes 55, the tapered holes are designed to enable the signal connecting rod 6 not to shake easily, and clamping grooves 56 are formed in two sides of the second positioning holes 55.
Referring to fig. 2-3, the controller housing 1 is provided with a controller circuit board 12, the controller circuit board 12 is fixed in the controller housing 1 through a clamping column, the controller housing 1 is connected with an upper cover 11 through a buckle, sealant is coated between the controller housing 1 and the upper cover 11, the buckle can be pre-fixed before the sealant is cured, assembly is convenient, a lead screw nut anti-rotation sleeve 5 is connected with a sensor circuit board 4, and the controller housing 1 is matched with the lead screw nut anti-rotation sleeve 5 for positioning a signal connecting rod 6 between the controller circuit board 12 and the sensor circuit board 4.
Specifically, referring to fig. 3-7, the screw nut anti-rotation sleeve 5 is provided with a plurality of protruding portions 51, the protruding portions 51 are in interference fit with the sensor circuit board 4, the screw nut anti-rotation sleeve 5 is provided with positioning columns 52 and error-proofing columns 53, the positioning columns 52 are symmetrically arranged, the sensor circuit board 4 is conveniently limited when being mounted on the screw nut anti-rotation sleeve 5, the error-proofing columns 53 are arranged on one side of a connecting line of the two positioning columns 52, the error-proofing columns 53 can prevent the sensor circuit board 4 from being reversely assembled, so that the sensor circuit board 4 and the screw nut anti-rotation sleeve 5 are preloaded and positioned, the plane positioning accuracy is ensured, the screw nut anti-rotation sleeve 5 is provided with a back-off 54 for fixing the sensor circuit board 4, and the back-off 54 can hook the sensor circuit board 4 from the side edge, so that the sensor circuit board 4 is not easy to fall off from the screw nut anti-rotation sleeve 5 in the overturning process.
The motor housing 3 sets up supporting part 31, when lead screw nut prevents changeing cover 5 presses sensor circuit board 4 on motor housing 3, supporting part 31 plays the supporting role to sensor circuit board 4, and direct normal direction location sensor circuit board 4 when the supporting part 31 is assembled, can accurate adjustment sensor circuit board 4 and the distance between the sensor rotor 8, make the signal more stable, the bellying 51 on the lead screw nut prevents changeing cover 5 can eliminate the normal direction fit clearance of sensor circuit board 4 through the mode of crushing, thereby the precision when signal connection pole 6 is installed at automatically controlled braking system has been improved.
Further, referring to fig. 5 and 10-11, the signal connection rod 6 includes a bracket 61, an upper portion of the bracket 61 is connected with an upper fixing cover 62 through a buckle, a lower portion of the bracket 61 is connected with an upper fixing cover 63 through a buckle, the signal connection rod 6 is provided with a signal assembly 66, the signal assembly 66 is installed in the bracket 61, and the signal assembly 66 includes a spring pin 67.
The gasket 7 is welded on both the sensor circuit board 4 and the controller circuit board 12, the gasket 7 is pressed with the spring pins 67, the welding surface of the gasket 7 (namely the contact surface of the gasket 7 and the sensor circuit board 4 and the contact surface of the gasket 7 and the controller circuit board 12) adopts a tinning process, the pressing surface of the gasket 7 (namely the contact surface of the gasket 7 and the spring pins 67) adopts a silver plating or gold plating process, and the gasket 7 adopts double-sided different electroplating processes, so that the requirements of welding and signal transmission stability are met, and the electroplating cost of the gasket 7 is reduced.
In addition, the signal connecting rod 6 still sets up side arm 64, and side arm 64 card is in the draw-in groove 56 of second locating hole 55 both sides, when convenient location signal connecting rod 6 mounting height, and screw nut prevents changeing cover 5 and still can regard as the supporting part to support signal connecting rod 6, can avoid signal connecting rod 6 to concentrate the bullet needle 67 of bottom with pressure, prevents that bullet needle 67 atress is great and take place wearing and tearing.
In this embodiment, the sensor circuit board 4 is fixed at the bottom of the screw nut anti-rotation sleeve 5 through the back-off 54, then the screw nut anti-rotation sleeve 5 is clamped into the motor housing 3 to be fixed, at this time, the screw nut anti-rotation sleeve 5 is positioned in the rotor 8, the signal connecting rod 6 is inserted into the valve block 2 until passing through the second positioning hole 55, the side arm 64 is clamped between the valve block 2 and the screw nut anti-rotation sleeve 5 to be positioned, the spring needle 67 at the bottom of the signal connecting rod 6 is contacted with the gasket 7 on the sensor circuit board 4, the first positioning hole 13 on the controller housing 1 is aligned with the signal connecting rod 6 to be positioned, the controller housing 1 is locked with the valve block 2 through the bolt, and at this time, the spring needle 67 at the top of the signal connecting rod 6 is contacted with the gasket 7 on the controller circuit board 12 to complete the assembly.
It can be understood that only the independent signal connecting rod 6 with the spring pins 67 at two ends is needed to connect the sensor circuit board 4 and the controller circuit board 12, compared with the assembly mode of the eddy current angle sensor in the prior art, the positioning of each component is convenient, the procedures of multiple insert injection molding, welding or press fitting of the sensor stator assembly can be reduced, the process is simple, the manufacturing cost is reduced, the motor housing 3 is used and the screw nut anti-rotation sleeve 5 is matched, the lower ends of the sensor circuit board 4 and the signal connecting rod 6 can be fixed, and the lower ends are not required to be additionally fixed by other fixing pieces such as bolts and rivets, so that the material cost is reduced.
Moreover, by adopting the independent signal connecting rod 6, the upper end and the lower end can be respectively positioned through the conical hole structures on the controller shell 1 and the screw nut anti-rotation sleeve 5, the installation height can be positioned between the valve block 2 and the screw nut anti-rotation sleeve 5 through the side arm 64, and other structures of the signal connecting rod 6 are kept away, so that the processing difficulty and the assembly difficulty can be reduced.
In addition, compared with an integrated sensor, the independent signal connecting rod 6 is convenient for packaging, storing and transporting, reduces the operation cost of packaging, transporting and the like, and can be installed more flexibly.
Working principle: the sensor circuit board 4 is fixed at the bottom of the screw nut anti-rotation sleeve 5 through the back-off 54, the screw nut anti-rotation sleeve 5 is clamped into the motor shell 3 to be fixed, the screw nut anti-rotation sleeve 5 is positioned in the rotor 8 at the moment, the signal connecting rod 6 is inserted into the valve block 2 until penetrating through the second positioning hole 55, the side arm 64 is clamped between the valve block 2 and the screw nut anti-rotation sleeve 5 to be positioned, the spring needle 67 at the bottom of the signal connecting rod 6 is contacted with the gasket 7 on the sensor circuit board 4, the first positioning hole 13 on the controller shell 1 is aligned with the signal connecting rod 6 to be positioned, the controller shell 1 is locked with the valve block 2 through the bolt, and the spring needle 67 at the top of the signal connecting rod 6 is contacted with the gasket 7 on the controller circuit board 12 at the moment, and the assembly is completed.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.
Claims (1)
1. A motor angle sensor assembly structure, comprising: motor casing (3), its characterized in that: a signal connecting rod (6) is arranged in the motor shell (3), a controller shell (1) which is matched with the signal connecting rod is arranged at the upper end part of the signal connecting rod (6), and a screw nut anti-rotation sleeve (5) which is matched with the signal connecting rod is arranged at the lower end part of the signal connecting rod (6);
the controller shell (1) is provided with a controller circuit board (12), the lead screw nut anti-rotation sleeve (5) is connected with the sensor circuit board (4), and the controller shell (1) is matched with the lead screw nut anti-rotation sleeve (5) to be used for positioning the signal connecting rod (6);
the controller shell (1) and the screw nut anti-rotation sleeve (5) are provided with conical hole structures which are matched with the signal connecting rod (6);
the lead screw nut anti-rotation sleeve (5) is provided with a plurality of protruding parts (51), the protruding parts (51) are in interference fit with the sensor circuit board (4), the lead screw nut anti-rotation sleeve (5) is provided with a positioning column (52) and an error-proofing column (53), and the lead screw nut anti-rotation sleeve (5) is provided with a back-off (54) for fixing the sensor circuit board (4);
the signal connecting rod (6) is provided with a side arm (64) and a signal assembly (66), the signal assembly (66) comprises a spring needle (67), the sensor circuit board (4) and the controller circuit board (12) are provided with gaskets (7), the gaskets (7) are pressed with the spring needle (67), a tin plating process is adopted on a welding surface of the gaskets (7), and a silver plating or gold plating process is adopted on a pressing surface of the gaskets (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311456809.0A CN117175863B (en) | 2023-11-03 | 2023-11-03 | Motor angle sensor assembly structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311456809.0A CN117175863B (en) | 2023-11-03 | 2023-11-03 | Motor angle sensor assembly structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117175863A CN117175863A (en) | 2023-12-05 |
| CN117175863B true CN117175863B (en) | 2024-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311456809.0A Active CN117175863B (en) | 2023-11-03 | 2023-11-03 | Motor angle sensor assembly structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN117175863B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117657089A (en) * | 2024-01-30 | 2024-03-08 | 千顾汽车科技(江苏)有限公司 | Pedal displacement sensor assembly structure of electric control brake system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102594028A (en) * | 2011-01-07 | 2012-07-18 | 株式会社美姿把 | Wiper motor |
| CN102957289A (en) * | 2011-08-10 | 2013-03-06 | Lg伊诺特有限公司 | Stator and EPS motor having the same |
| CN210839238U (en) * | 2019-10-10 | 2020-06-23 | 深圳市品罗创新实业有限公司 | Brushless motor and juicer comprising same |
| CN217935407U (en) * | 2022-06-06 | 2022-11-29 | 上海利氪科技有限公司 | Circuit board connection structure of motor angle sensor |
| WO2023093666A1 (en) * | 2021-11-25 | 2023-06-01 | 北京经纬恒润科技股份有限公司 | Eps controller and motor integrated power unit structure, and assembly method and system |
-
2023
- 2023-11-03 CN CN202311456809.0A patent/CN117175863B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102594028A (en) * | 2011-01-07 | 2012-07-18 | 株式会社美姿把 | Wiper motor |
| CN102957289A (en) * | 2011-08-10 | 2013-03-06 | Lg伊诺特有限公司 | Stator and EPS motor having the same |
| CN210839238U (en) * | 2019-10-10 | 2020-06-23 | 深圳市品罗创新实业有限公司 | Brushless motor and juicer comprising same |
| WO2023093666A1 (en) * | 2021-11-25 | 2023-06-01 | 北京经纬恒润科技股份有限公司 | Eps controller and motor integrated power unit structure, and assembly method and system |
| CN217935407U (en) * | 2022-06-06 | 2022-11-29 | 上海利氪科技有限公司 | Circuit board connection structure of motor angle sensor |
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| Publication number | Publication date |
|---|---|
| CN117175863A (en) | 2023-12-05 |
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