CN220551442U - Positioning structure of inner satellite wheel of angle sensor for automobile - Google Patents
Positioning structure of inner satellite wheel of angle sensor for automobile Download PDFInfo
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- CN220551442U CN220551442U CN202322092467.0U CN202322092467U CN220551442U CN 220551442 U CN220551442 U CN 220551442U CN 202322092467 U CN202322092467 U CN 202322092467U CN 220551442 U CN220551442 U CN 220551442U
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- satellite wheel
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- RVCKCEDKBVEEHL-UHFFFAOYSA-N 2,3,4,5,6-pentachlorobenzyl alcohol Chemical compound OCC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl RVCKCEDKBVEEHL-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229920001971 elastomer Polymers 0.000 claims description 9
- 239000000806 elastomer Substances 0.000 claims description 9
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000009194 climbing Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model discloses a positioning structure of an inner satellite wheel of an angle sensor for an automobile, wherein a sun wheel, a first satellite wheel and a second satellite wheel are arranged in a shell, the first satellite wheel and the second satellite wheel are meshed with the sun wheel, a PCBA board is arranged in the shell and is abutted against the first satellite wheel and the second satellite wheel, a first bracket and a second bracket are respectively provided with an opening accommodating cavity and an ear tab and a pin post which are arranged outside the opening accommodating cavity, the first satellite wheel and the second satellite wheel are respectively arranged in the opening accommodating cavities of the first bracket and the second bracket, a column body is vertically arranged at intervals on the bottom surface of the inner cavity of the shell, the ear tab outside the opening accommodating cavities of the first bracket and the second bracket is provided with a through hole and is inserted into the column body, so that the first bracket and the second bracket rotate around the column body, one end of the first elastic body is respectively inserted into the pin post outside the opening accommodating cavities of the first bracket and the second bracket, and the other end of the first elastic body is abutted against the side wall of the shell. The structure enables the sun wheel and the satellite wheel to synchronously rotate, improves the output precision of the sensor, avoids the tooth surface collision caused by the increase of the side gap, and improves the driving comfort level.
Description
Technical Field
The utility model relates to the technical field of automotive electrical equipment, in particular to a positioning structure of an inner satellite wheel of an automotive angle sensor.
Background
Be equipped with planet wheel transmission structure in the angle sensor for car, the sun gear rotates through the meshing of tooth with two satellite wheels, has magnet response on two satellite wheels, exports the angle through hall element on the PCB board. Because the precision requirement of the output of the angle sensor is higher and certain stability is required, the smaller the backlash of the matched teeth of the sun wheel and the two satellite wheels is, the better the backlash is; in order to ensure that smaller backlash requires accurate positioning of the sun wheel and the two satellite wheels, the sun wheel and the satellite wheels are injection molding pieces generally, the requirement of fit tolerance is smaller due to higher precision, control of the injection molding pieces is not facilitated, the smaller backlash can lead to satellite wheel clamping stagnation, flexible rotation cannot be achieved, rotation moment is increased, tooth surfaces are worn, and the backlash is enlarged or broken along with endurance time, so that output angle errors are enlarged. If the size is too loose, the side gap is large, and the output angle error is large; and the tooth collision sound is generated by the tooth surface of the sun gear and the tooth surface of the satellite gear, so that the driving experience is affected.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a positioning structure of an inner satellite wheel of an angle sensor for an automobile, which enables a sun wheel and a satellite wheel to synchronously rotate through balance of a satellite wheel bracket and elastic body force, improves the output precision of the sensor, avoids abnormal noise caused by tooth surface impact due to increase of backlash, and improves the driving comfort.
In order to solve the technical problems, the positioning structure of the inner satellite wheel of the automotive angle sensor comprises a shell, a sun wheel, a first satellite wheel, a second satellite wheel and a PCBA plate, wherein the sun wheel, the first satellite wheel and the second satellite wheel are respectively arranged in the shell, the first satellite wheel and the second satellite wheel are respectively meshed with the sun wheel, the PCBA plate is arranged in the shell and is abutted to the first satellite wheel and the second satellite wheel, the positioning structure further comprises a first support, a first elastic body, a second support and a second elastic body, the first support and the second support are respectively provided with an opening accommodating cavity, an ear climbing and a pin column which are arranged outside the opening accommodating cavity, the first satellite wheel and the second satellite wheel are respectively arranged in the opening accommodating cavities of the first support and the second support, the bottom surface of the inner cavity of the shell is respectively provided with a cylinder at intervals, the ear climbing outside the opening accommodating cavities of the first support and the second support is provided with a through hole and is inserted into the cylinder, and the first support and the second support rotate around the first support and the second support and the other end of the elastic body is abutted to the side wall of the first support and the second support and the other end of the first support and the second support are respectively inserted into the opening accommodating cavities.
Further, the inner side walls of the opening accommodating cavities of the first bracket and the second bracket are arc-shaped, grooves are formed in the inner side walls in the middle along the circumferential direction, and the wheel surfaces of the first satellite wheel and the second satellite wheel are abutted to the inner side walls and the tooth surfaces of the opening accommodating cavities of the first bracket and the second bracket and are positioned in the grooves.
Further, the bottom surface of the inner cavity of the shell is vertically provided with supporting columns at intervals respectively, and the supporting columns respectively lean against the bottom surfaces of the first satellite wheel and the second satellite wheel.
Further, the first elastic body and the second elastic body are springs, elastic sheets or silicon rubber blocks.
Because the positioning structure of the inner satellite wheel of the angle sensor for the automobile adopts the technical scheme, namely, the sun wheel, the first satellite wheel and the second satellite wheel of the angle sensor for the automobile are respectively arranged in the shell, the first satellite wheel and the second satellite wheel are respectively meshed with the sun wheel, the PCBA board is arranged in the shell and is attached to the first satellite wheel and the second satellite wheel, the first support and the second support are respectively provided with an opening accommodating cavity and a lug and a pin post which are arranged at the outer sides of the opening accommodating cavity, the first satellite wheel and the second satellite wheel are respectively arranged in the opening accommodating cavities of the first support and the second support, the bottom surfaces of the inner cavities of the shell are respectively and vertically provided with a column body at intervals, the lugs at the outer sides of the opening accommodating cavities of the first support and the second support are provided with through holes and are inserted into the column body, so that the first support and the second support rotate around the column body, one ends of the first elastomer and the second elastomer are respectively inserted into the pin posts at the outer sides of the opening accommodating cavities of the first support and the second support, and the other ends of the first elastomer are attached to the side walls of the shell. The structure ensures that the sun wheel and the satellite wheel synchronously rotate through the balance of the satellite wheel support and the elastic body force, improves the output precision of the sensor, avoids abnormal sound generated by tooth surface impact caused by increase of backlash, and improves the driving comfort.
Drawings
The utility model is described in further detail below with reference to the attached drawings and embodiments:
FIG. 1 is a schematic diagram of a positioning structure of an inner satellite wheel of an angle sensor for an automobile according to the present utility model;
FIG. 2 is an exploded view of the part of the present construction;
FIG. 3 is a schematic view of a first bracket and a second bracket in the present structure;
FIG. 4 is a schematic diagram of a first satellite wheel and a second satellite wheel in the present configuration;
fig. 5 is a schematic view of the housing in the present structure.
Detailed Description
As shown in fig. 1 to 5, the positioning structure of the inner satellite wheel of the angle sensor for the automobile according to the utility model comprises a housing 1, a sun wheel 2, a first satellite wheel 3, a second satellite wheel 4 and a PCBA plate 5, wherein the sun wheel 2, the first satellite wheel 3 and the second satellite wheel 4 are respectively arranged in the housing 1, the first satellite wheel 3 and the second satellite wheel 4 are respectively meshed with the sun wheel 2, the PCBA plate 5 is arranged in the housing 1 and is abutted against the first satellite wheel 3 and the second satellite wheel 4, the positioning structure further comprises a first support 6, a first elastic body 7, a second support 8 and a second elastic body 9, the first support 6 and the second support 8 are respectively provided with an opening accommodating cavity 61, and an ear tab 62 and a pin 63 which are respectively arranged outside the opening accommodating cavity 61, the first support 6 and the second support 8 are respectively arranged in the opening accommodating cavity 61, the bottom surface of the housing 1 is respectively vertically provided with an 11, the first support 6 and the second support 8 are respectively abutted against the opening accommodating cavity 62 and the second support 8, the first support 6 and the second support 8 are respectively provided with an elastic body 64 which is inserted into the opening accommodating cavity 11 and the second support 8, and the other end of the first support 8 is respectively inserted into the opening accommodating the first support 6 and the second support 8, and the second support 8 is respectively provided with an elastic body 64, and the opening accommodating the first support 6 and the second support 8 is inserted into the opening accommodating the opening of the first support 6 and the first support 8 and the second support 8.
Preferably, the inner side walls 66 of the opening accommodating chambers 61 of the first bracket 6 and the second bracket 8 are arc-shaped, and a groove 65 is centrally arranged on the inner side walls along the circumferential direction, and the wheel faces 31 of the first satellite wheel 3 and the second satellite wheel 4 are abutted against the inner side walls 66 of the opening accommodating chambers 61 of the first bracket 6 and the second bracket 8, and the tooth faces 32 are positioned in the groove 65. The above design of the first and second brackets 6, 8 improves the stability of the satellite wheel rotating in the brackets, ensuring a smooth rotation following the sun wheel.
Preferably, the bottom surface of the inner cavity of the housing 1 is vertically provided with supporting columns 13 at intervals, and the supporting columns 13 respectively abut against the bottom surfaces of the first satellite wheel 3 and the second satellite wheel 4.
Preferably, the first elastic body 7 and the second elastic body 9 are springs, elastic sheets or silicone rubber blocks.
In this structure, the opening that first satellite wheel 3 and second satellite wheel 4 located respectively and hold chamber 61 with second support 6, 8, first support 6 and second support 8 rotate around cylinder 11, exert precompression to first support 6 and second support 8 through first elastomer 7 and second elastomer 9 for first satellite wheel 3 and second satellite wheel 4 paste tight meshing with sun gear 2 tooth face, avoid producing great backlash.
The first elastic body 7 and the second elastic body 9 balance force according to fluctuation of rotation of the sun gear 2, tooth surfaces of the first satellite wheel 3 and the second satellite wheel 4 are enabled to be self-adaptive and always kept in contact with the tooth surface of the sun gear 2, rotation of the sun gear 2 and rotation of the first satellite wheel 3 and rotation of the second satellite wheel 4 are always kept in synchronous rotation, and therefore accuracy of sensor angle output is improved. At the same time, when the sun gear starts to rotate and suddenly rotates, the meshing of the tooth surfaces is always kept in contact due to the action of the first elastic body 7 and the second elastic body 9, so that the impact sound of the tooth surfaces is eliminated.
The structure utilizes the balance of the support and the elastic body force, avoids the generation of abnormal impact noise of teeth caused by the increase of the backlash when the sun wheel is meshed with the first satellite wheel and the second satellite wheel, and simultaneously, the sun wheel and the two satellite wheels synchronously rotate when the sun wheel rotates due to the reduction of the backlash, so that the accuracy of the output angle of the sensor is improved.
Claims (4)
1. The utility model provides a location structure of satellite wheel in angle sensor for car, includes casing, sun gear, first satellite wheel, second satellite wheel and PCBA board, sun gear, first satellite wheel and second satellite wheel are located respectively in the casing to first satellite wheel and second satellite wheel mesh with the sun gear respectively, PCBA board locate in the casing and paste to first satellite wheel and second satellite wheel, its characterized in that: still include first support, first elastomer, second support and second elastomer, first support and second support are equipped with the opening respectively and hold the chamber and locate the opening and hold the ear of the chamber outside and climb and the round pin post, first satellite wheel and second satellite wheel are located respectively the opening of first support and second support holds the intracavity, the shell inner chamber bottom surface interval respectively is equipped with the cylinder perpendicularly, the ear of first support and second support opening hold the chamber outside is climbed and is equipped with the through-hole and inserts the cylinder, make first support and second support rotate around the cylinder, the one end of first elastomer and second elastomer inserts respectively the round pin post, the other end outside the other end of first support and second support opening hold the chamber support to the lateral wall of casing.
2. The positioning structure of an inner satellite wheel of an angle sensor for an automobile according to claim 1, wherein: the inner side walls of the opening accommodating cavities of the first bracket and the second bracket are arc-shaped, grooves are formed in the inner side walls in the middle along the circumferential direction, and the wheel surfaces of the first satellite wheel and the second satellite wheel are propped against the inner side walls and the tooth surfaces of the opening accommodating cavities of the first bracket and the second bracket and are positioned in the grooves.
3. The positioning structure of an inner satellite wheel of an angle sensor for an automobile according to claim 1 or 2, wherein: the bottom surface of the inner cavity of the shell is vertically provided with supporting columns at intervals respectively, and the supporting columns respectively lean against the bottom surfaces of the first satellite wheel and the second satellite wheel.
4. The positioning structure of an inner satellite wheel of an angle sensor for an automobile according to claim 1 or 2, wherein: the first elastic body and the second elastic body are springs, elastic sheets or silicon rubber blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322092467.0U CN220551442U (en) | 2023-08-04 | 2023-08-04 | Positioning structure of inner satellite wheel of angle sensor for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322092467.0U CN220551442U (en) | 2023-08-04 | 2023-08-04 | Positioning structure of inner satellite wheel of angle sensor for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220551442U true CN220551442U (en) | 2024-03-01 |
Family
ID=90009906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322092467.0U Active CN220551442U (en) | 2023-08-04 | 2023-08-04 | Positioning structure of inner satellite wheel of angle sensor for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220551442U (en) |
-
2023
- 2023-08-04 CN CN202322092467.0U patent/CN220551442U/en active Active
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