CN216437002U - Anti-loosening mounting structure of motor rotation angle sensor - Google Patents
Anti-loosening mounting structure of motor rotation angle sensor Download PDFInfo
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- CN216437002U CN216437002U CN202123146039.9U CN202123146039U CN216437002U CN 216437002 U CN216437002 U CN 216437002U CN 202123146039 U CN202123146039 U CN 202123146039U CN 216437002 U CN216437002 U CN 216437002U
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Abstract
The utility model relates to a locking mounting structure of motor corner sensor solves eddy current sensor and to the high requirement problem of installation stability. The structure comprises an annular sensor shell, a housing and a valve body, wherein the sensor shell is buckled on the valve body through the housing, the sensor shell is embedded in the end face of one side, close to the valve body, of the housing, a plurality of ribs are arranged on the periphery of the outer wall of the sensor shell, and the ribs are in interference fit with the inner wall of the housing; the periphery of the outer wall of the sensor shell is also provided with a plurality of positioning convex hulls, and the inner wall of the housing and the positioning convex hulls are correspondingly provided with grooves; the sensor shell is characterized in that a plurality of elastic clamping tongues used for axial limiting are further arranged on the periphery of the outer wall of the sensor shell, and clamping grooves matched with the elastic clamping tongues are formed in the inner wall of the housing. The sensor shell of the utility model is embedded into the housing firstly, and the stable positioning is automatically formed by utilizing the multi-group clamping positioning structure, so as to avoid loosing and ensure the accuracy of the sensor; the sensor shell is directly installed with the valve body after being embedded with the housing, so that the installation steps are simplified.
Description
Technical Field
The utility model belongs to the sensor field relates to a mounting structure of sensor, in particular to locking mounting structure of motor corner sensor.
Background
The motor rotation angle sensor is a sensor for detecting the electric angle of the motor rotor, and can be used for identifying the position of the motor rotor. The motor rotation angle sensor includes various types such as a rotation type sensor, an eddy current sensor, a magnetic resistance MR sensor and the like. The eddy current sensor can be applied in a high-rotating-speed working environment, can be designed to be used for shaft penetrating or shaft end induction, and has the advantages of flexible arrangement, high precision, stray magnetic field interference resistance, low cost and the like. For the eddy current sensor with high precision, the installation stability is an important precondition for ensuring the detection precision of the eddy current sensor, and the installation structure which is stable, reliable, controllable in cost and convenient to assemble is designed and is an important content for ensuring the detection precision of the eddy current sensor.
Disclosure of Invention
The utility model aims to provide a locking mounting structure of motor corner sensor to eddy current sensor to the high requirement problem of installation stability, adopt radially, axially, the annular multidirectional spacing, stabilize the installation to motor corner sensor to the cooperation of make full use of sensor and housing simplifies the installation steps, reduces installation cost.
The utility model provides a technical scheme that its technical problem adopted is: the anti-loosening mounting structure of the motor rotation angle sensor comprises an annular sensor shell, a housing and a valve body, wherein the sensor shell is buckled on the valve body through the housing, the sensor shell is embedded in the end face of one side, close to the valve body, of the housing, a plurality of ribs are arranged on the periphery of the outer wall of the sensor shell, and the ribs are in interference fit with the inner wall of the housing; the periphery of the outer wall of the sensor shell is also provided with a plurality of positioning convex hulls, the inner wall of the housing and the positioning convex hulls are correspondingly provided with grooves, and the grooves are axially formed; the sensor shell is characterized in that a plurality of elastic clamping tongues used for axial limiting are further arranged on the periphery of the outer wall of the sensor shell, clamping grooves matched with the elastic clamping tongues are formed in the inner wall of the housing, and the clamping grooves are formed in the circumferential direction. In this scheme, sensor chip sets up within sensor housing, and sensor housing inlays earlier and establishes the housing, utilizes multiunit joint location structure automatic formation stable position, avoids taking off, and the guarantee sensor precision, then along with on housing direct mount to the valve body, sensor housing adopts the joint to inlay with the housing and establishes the location, and the assembly is simple, can directly accomplish the installation along with housing and valve body after the assembly is accomplished, has simplified installation procedure. In the process of assembling the sensor shell and the housing, a plurality of ribs around the sensor shell form small interference fit with the housing, so that a shaking space is eliminated, and axis positioning, namely radial positioning, is formed; the positioning convex hull and the groove of the housing form annular positioning; the elastic clamping tongue and the clamping groove form axial positioning.
Preferably, the number of the ribs is not less than 3, and the ribs are uniformly arranged on the outer wall of the sensor shell.
Preferably, the valve body is provided with a boss for positioning the cover. The valve body is provided with a boss, and the housing can be buckled on the boss for accurate positioning.
Preferably, the end surface of the positioning convex hull facing the valve body is higher than the top surface of the groove. The positioning convex hull is higher than the groove, so that the positioning convex hull can be abutted against the valve body mounting surface in the mounting process, the air gap dynamic change cannot be caused due to insufficient locking force under the complex working condition, and the product precision is influenced.
Preferably, one or more positioning convex hulls are arranged.
Preferably, the clamping groove is a 360-degree annular groove.
Preferably, the number of the elastic clamping tongues is not less than 3, and each elastic clamping tongue is uniformly arranged on the outer wall of the periphery of the sensor shell.
Preferably, the positioning convex hull is arranged close to one side, facing the valve body, of the outer wall of the sensor shell, and the ribs are arranged close to one side, far away from the valve body, of the outer wall of the sensor shell.
Preferably, one side of the sensor shell is provided with a notch for three-phase wires to run.
Preferably, the sensor housing stretches out to the valve body side and is provided with the stitch seat, the valve body corresponds with the stitch seat and sets up circular mounting hole, the ring week of stitch seat outer wall evenly be equipped with a plurality of with circular mounting hole pore wall complex spacing bumps, stitch seat and sensor housing link are equipped with the step, and the stitch seat sets up the end face sealing washer between step face department and the valve body terminal surface. The pin base and the circular mounting hole are sealed by end faces, the influence caused by injection molding verticality of the pin base can be reduced, the sealing performance is ensured, and the limiting convex point limits the pin base and avoids shaking. The limiting convex points and the hole wall of the far new mounting hole can be in small interference fit.
The sensor shell of the utility model is embedded into the housing firstly, and the stable positioning is automatically formed by utilizing the multi-group clamping positioning structure, so as to avoid loosing and ensure the accuracy of the sensor; the sensor shell is directly installed with the valve body after being embedded with the housing, so that the installation steps are simplified.
Drawings
The present invention will be further explained with reference to the accompanying drawings.
Fig. 1 is a schematic view of an installation structure of the present invention.
Fig. 2 is a schematic structural diagram of a sensor housing according to the present invention.
Fig. 3 is a schematic diagram of a housing structure of the present invention.
Fig. 4 is a schematic diagram of a sensor housing and housing embedding structure according to the present invention.
Fig. 5 is a schematic structural diagram of a in fig. 4 according to the present invention.
Fig. 6 is a schematic view of the structure of the stitch seat of the present invention.
In the figure: 1. the sensor comprises a sensor shell, 2, a housing, 3, a valve body, 4, a rotor, 5, a three-phase line, 6, ribs, 7, a positioning convex hull, 8, an elastic clamping tongue, 9, a pin base, 10, a boss, 11, a groove gap, 12, a step, 13, a groove, 14, a clamping groove, 15 and a limiting convex point.
Detailed Description
The present invention will be further described with reference to the following specific embodiments and accompanying drawings.
Example (b): an anti-loose mounting structure of a motor rotation angle sensor is shown in figure 1. The device comprises an annular sensor shell 1, a cover shell 2 and a valve body 3. The sensor housing 1 is buckled on the valve body 3 through the housing 2, a rotor 4 and a three-phase line 5 are further arranged on the side, back to the valve body 3, of the sensor housing 1, and the rotor 4 and the three-phase line 5 are also arranged in the housing 2. One side of the sensor shell 1 is provided with a notch for the three-phase line 5 to run. The valve body 3 is provided with a boss 10 for positioning the housing, and the housing is buckled at the boss and fixed with the valve body by four bolts.
The sensor housing 1 is embedded in the end face of the housing 2 on the side close to the valve body 3. As shown in fig. 2, 3 and 4, three ribs 6 are uniformly arranged on the periphery of the outer wall of the sensor housing 1, and the ribs 6 are in interference fit with the inner wall of the housing 2. In this example, the ribs may be straight lines with extending axes, or the ribs may be in other point or line shapes. The sensor shell is characterized in that three positioning convex hulls 7 are uniformly arranged on the periphery of the outer wall of the sensor shell 1, grooves 13 are correspondingly formed in the inner wall of the housing 2 and the positioning convex hulls, and the grooves are axially formed. As shown in fig. 5, the end surface of the positioning convex hull 7 facing the valve body is higher than the top surface of the groove 13. During the installation, the protruding package of location can support and lean on boss 10, ensures under complicated operating mode, can not lead to air gap dynamic change because of the locking force is not enough to influence the product precision. The sensor shell 1 is characterized in that three elastic clamping tongues 8 used for axial limiting are further arranged on the periphery of the outer wall of the sensor shell 1, clamping grooves 14 matched with the elastic clamping tongues are formed in the inner wall of the housing, and the clamping grooves are annular grooves formed in 360-degree annular direction. As shown in fig. 1 and 2, the positioning convex hull 7 is arranged on one side of the outer wall of the sensor shell facing the valve body, and the rib 6 is arranged on one side of the outer wall of the sensor shell far away from the valve body.
In the process of assembling the sensor shell and the housing, a plurality of ribs around the sensor shell form small interference fit with the housing, so that a shaking space is eliminated, and axis positioning, namely radial positioning, is formed; the positioning convex hull and the groove of the housing form annular positioning; the elastic clamping tongue and the clamping groove form axial positioning. The sensor shell and the housing are clamped and embedded to be positioned, the assembly is simple, the mounting can be directly completed along with the housing and the valve body after the assembly is completed, the boss and the positioning convex hull are abutted against the axial auxiliary positioning forming the sensor shell, and the stability of an air gap is ensured. The pin base and the circular mounting hole are sealed by end faces, the influence caused by injection molding verticality of the pin base can be reduced, the sealing performance is ensured, and the limiting convex point limits the pin base and avoids shaking.
Claims (10)
1. The utility model provides a locking mounting structure of motor corner sensor, includes annular sensor housing, valve body, its characterized in that: the sensor shell is buckled on the valve body through the housing, the sensor shell is embedded in the end face of one side, close to the valve body, of the housing, a plurality of ribs are arranged on the periphery of the outer wall of the sensor shell, and the ribs are in interference fit with the inner wall of the housing; the periphery of the outer wall of the sensor shell is also provided with a plurality of positioning convex hulls, the inner wall of the housing and the positioning convex hulls are correspondingly provided with grooves, and the grooves are axially formed; the sensor shell is characterized in that a plurality of elastic clamping tongues used for axial limiting are further arranged on the periphery of the outer wall of the sensor shell, clamping grooves matched with the elastic clamping tongues are formed in the inner wall of the housing, and the clamping grooves are formed in the circumferential direction.
2. The anti-loosening mounting structure of the motor rotation angle sensor according to claim 1, characterized in that: 3 are no less than to rib quantity, and each rib evenly sets up at sensor housing outer wall.
3. The anti-loosening mounting structure of the motor rotation angle sensor according to claim 1, characterized in that: and the valve body is provided with a boss for positioning the housing.
4. The anti-loosening mounting structure for the motor rotation angle sensor according to claim 1, 2 or 3, wherein: the end surface of the positioning convex hull facing the valve body is higher than the top surface of the groove.
5. The anti-loose mounting structure of the motor rotation angle sensor according to claim 1, 2 or 3, characterized in that: one or more positioning convex hulls are arranged.
6. The anti-loosening mounting structure for the motor rotation angle sensor according to claim 1, 2 or 3, wherein: the clamping groove is a 360-degree annular groove.
7. The anti-loose mounting structure of the motor rotation angle sensor according to claim 1, 2 or 3, characterized in that: the number of the elastic clamping tongues is not less than 3, and each elastic clamping tongue is uniformly arranged on the outer wall of the circumference of the shell of the sensor.
8. The anti-loosening mounting structure for the motor rotation angle sensor according to claim 1, 2 or 3, wherein: the convex hull of location leans on sensor housing outer wall to set up towards one side of valve body, the rib leans on one side setting that sensor housing outer wall kept away from the valve body.
9. The anti-loosening mounting structure for the motor rotation angle sensor according to claim 1, 2 or 3, wherein: one side of the sensor shell is provided with a notch for three-phase wires to run.
10. The anti-loosening mounting structure for the motor rotation angle sensor according to claim 1, 2 or 3, wherein: sensor housing stretches out to the valve body side and is provided with the stitch seat, the valve body corresponds with the stitch seat and sets up circular mounting hole, and the ring week of stitch seat outer wall evenly is equipped with a plurality ofly and the spacing bump of circular mounting hole pore wall complex, stitch seat and sensor housing link are equipped with the step, and the stitch seat sets up end face seal between step face department and the valve body terminal surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123146039.9U CN216437002U (en) | 2021-12-15 | 2021-12-15 | Anti-loosening mounting structure of motor rotation angle sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123146039.9U CN216437002U (en) | 2021-12-15 | 2021-12-15 | Anti-loosening mounting structure of motor rotation angle sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216437002U true CN216437002U (en) | 2022-05-03 |
Family
ID=81316629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123146039.9U Active CN216437002U (en) | 2021-12-15 | 2021-12-15 | Anti-loosening mounting structure of motor rotation angle sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216437002U (en) |
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2021
- 2021-12-15 CN CN202123146039.9U patent/CN216437002U/en active Active
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