CN217504666U - Ultrathin steering engine sensor - Google Patents
Ultrathin steering engine sensor Download PDFInfo
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- CN217504666U CN217504666U CN202221327803.4U CN202221327803U CN217504666U CN 217504666 U CN217504666 U CN 217504666U CN 202221327803 U CN202221327803 U CN 202221327803U CN 217504666 U CN217504666 U CN 217504666U
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- steering engine
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Abstract
The utility model discloses an ultra-thin steering engine sensor, which comprises a shell, wherein a rotating shaft hole is arranged in the middle of the shell, and a wiring port is arranged at the position of one side of the shell corresponding to a substrate; the substrate is arranged in the shell, the front surface of the substrate is provided with a resistance card, the back surface of the conductive sheet is provided with a wiring conductive sheet, and the middle position of the substrate is provided with a through hole for the rotating piece to pass through; a shaft sleeve and an electric brush are fixedly arranged below the rotating piece, and the base plate is sleeved outside the shaft sleeve through a through hole; the tail end of the rotating shaft is provided with a riveting part, and the rotating shaft penetrates through the rotating shaft hole, the rotating part and the base plate in sequence and is riveted with the rotating part in the shaft sleeve through the riveting part; the bottom plate is fixedly arranged at the bottom of the shell. Compared with the prior art, the utility model has the advantages of as follows: this steering wheel sensor's base plate cover establish with the rotating member below, the pivot is riveted with the rotating member, has realized ultra-thin technological effect, does benefit to the miniaturized design of product. Meanwhile, the metal plate on the base plate and the second glue layer between the base plate and the bottom plate effectively improve the heat dissipation rate of the sensor.
Description
Technical Field
The utility model relates to a potentiometre sensor technical field especially relates to an ultra-thin steering wheel sensor.
Background
The potentiometer can convert a mechanical angle signal into an electric signal to be output, and generally comprises a resistor body and a rotatable electric brush, when the electric brush rotates left and right on a resistor strip, a resistance value or a voltage which has a certain relation with displacement is obtained at an output end, and therefore a rotation angle is obtained. Because the potentiometer has the characteristics of stable performance, simple structure and lower cost, the potentiometer is widely used as a sensor in a steering engine.
For example, chinese patent publication No. CN112038027A discloses a high-precision rotation angle sensor and a method for manufacturing a resistance sensor thereof, which includes a housing, an end cap, a resistance sensor, an electric brush, a signal leading-out slip ring, a first bearing, a second bearing, a transmission shaft, and insulating ceramics; the shell and the end cover installed at the top of the shell form a cylinder with a cavity inside, a first bearing and a second bearing are installed inside the shell bottom and the end cover respectively, a transmission rotating shaft penetrates through a through hole in the center of the shell and the end cover, the first bearing, insulating ceramics, a signal leading-out slip ring, an electric brush and the second bearing are sequentially sleeved on the transmission rotating shaft from the bottom of the shell to the direction of the end cover, a resistance sensitive element is sintered inside the shell, when the transmission rotating shaft rotates, the transmission rotating shaft drives the electric brush in rigid connection to slide on the surface of the resistance sensitive element, and the rotation angle of the electric brush is in direct proportion to the resistance between the electric brush and a reference point.
However, the potentiometer in the prior art cannot be further miniaturized, which affects the design space of product miniaturization. The design of the ultrathin potentiometer faces the problems of low heat dissipation efficiency and the like caused by insufficient connection strength of the rotating shaft and small internal space. Therefore, an ultrathin steering engine sensor is needed to solve the problem that the potentiometer height is within 8 mm.
Disclosure of Invention
The utility model aims at overcoming the problems of the prior art and providing an ultra-thin steering engine sensor.
In order to achieve the above purpose, the utility model adopts the following scheme:
an ultra-thin steering engine sensor, comprising:
the middle position of the shell is provided with a rotating shaft hole, and one side of the shell, corresponding to the substrate, is provided with a wiring port;
the substrate is arranged in the shell, the front surface of the substrate is provided with a resistor disc and the back surface of the conducting plate is provided with a wiring conducting plate, and the middle position of the substrate is provided with a through hole for the rotating piece to pass through;
the rotating piece is fixedly provided with a shaft sleeve for inserting into the through hole and an electric brush for connecting the resistance chip and the conducting strip below the rotating piece, the substrate is sleeved outside the shaft sleeve through the through hole, and the electric brush can rotate on the resistance chip and the conducting strip through the rotating piece;
the tail end of the rotating shaft is provided with a riveting part, and the rotating shaft penetrates through the rotating shaft hole, the rotating part and the base plate in sequence and is riveted with the rotating part in the shaft sleeve through the riveting part;
the bottom plate is fixedly arranged at the bottom of the shell.
Furthermore, a first glue layer used for enhancing the connection strength is arranged at the riveting position of the tail end of the rotating shaft and the lower end of the rotating piece. The end of the rotating shaft is riveted with the shaft sleeve of the rotating part through the riveting part, and then glue is injected into the shaft sleeve to enable the rotating shaft to be stably connected with the rotating part, so that the riveting part is prevented from deforming when the rotating shaft is subjected to large pulling force, and the stability of a product is improved.
Furthermore, the upper end of the bottom plate is provided with a snap ring which can stretch into the shell, the outer wall of the side of the snap ring is provided with a snap hook, a first glue injection groove is arranged below the snap hook, and the shell is provided with a second glue injection groove corresponding to the first glue injection groove. When glue solidifies between first injecting glue groove and second injecting glue groove, solid-state glue can form the embolus structure between first injecting glue groove and second injecting glue groove, further prevents that the bottom plate is not hard up in the casing.
Furthermore, the side surface of the substrate is provided with a limiting convex part, and the inner wall of the shell is provided with a limiting groove for the limiting convex part to be clamped in. The limiting convex part and the limiting groove can further prevent the substrate from rotating in the shell.
Furthermore, an anti-interference metal sheet for heat dissipation is arranged on the back of the substrate. The metal sheet can improve the heat dissipation performance of the substrate and can play a certain role in electromagnetic shielding.
Furthermore, a second glue layer is arranged between the bottom plate and the substrate. Because the heat-conducting property of the solid glue is superior to that of air, the second glue layer can lead out heat on the substrate more quickly, and the heat-conducting efficiency of the product is improved, so that the product performance is improved.
Furthermore, be equipped with the card post that is used for installing the brush on the rotating member, the brush all is through card post and carousel fixed connection.
Furthermore, the electric brushes are all hook-type electric brushes.
Furthermore, a bolt hole is formed in the rotating shaft, and the rotating shaft is fixedly connected with the bolt through the bolt hole.
Compared with the prior art, the utility model has the advantages of as follows: this steering wheel sensor's base plate cover is established and is rotated the piece below, and the pivot is riveted with the rotating member, and this structural design greatly reduced the product height of this potentiometre sensor, realized ultra-thin technological effect, do benefit to the miniaturized design of product. Meanwhile, the metal plate on the base plate and the second glue layer between the base plate and the bottom plate effectively improve the heat dissipation rate of the sensor.
Drawings
The present application will be described in further detail with reference to the following drawings and detailed description.
Fig. 1 is a schematic view of the overall exploded structure of the ultra-thin steering engine sensor of the present invention.
Fig. 2 is a schematic view of the overall cross-sectional structure of the ultra-thin steering engine sensor of the present invention.
Fig. 3 is a schematic view of a partial assembly structure of the ultra-thin steering engine sensor of the present invention.
Fig. 4 is a schematic structural diagram of a substrate in the ultra-thin steering engine sensor of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in fig. 1-4, an ultra-thin steering engine sensor comprises:
a hole 101 of a rotating shaft 4 is arranged in the middle of the shell 1 as shown in fig. 1 and 2, and a wiring port 104 is arranged at one side of the shell 1 corresponding to the substrate 2;
a substrate 2, as shown in fig. 1 and 4, the substrate 2 is arranged in the housing 1, the front surface of the substrate 2 is provided with a resistor disc 201, the back surface of the conductive sheet 202 is provided with a wiring conductive sheet 206, and the middle position of the substrate 2 is provided with a through hole 203 for the rotating member 3 to pass through;
a rotating member 3, as shown in fig. 1-3, a shaft sleeve 301 for inserting into the through hole 203 and an electric brush 302 for connecting the resistive sheet 201 and the conductive sheet 202 are fixedly arranged below the rotating member 3, the substrate 2 is sleeved outside the shaft sleeve 301 through the through hole 203, and the electric brush 302 can rotate on the resistive sheet 201 and the conductive sheet 202 through the rotating member 3;
the rotating shaft 4 is provided with a riveting part 401 at the tail end of the rotating shaft 4, and the rotating shaft 4 sequentially penetrates through the hole 101 of the rotating shaft 4, the rotating part 3 and the substrate 2 and then is riveted with the rotating part 3 in the shaft sleeve 301 through the riveting part 401;
and the bottom plate 5 is fixedly arranged at the bottom of the shell 1.
Preferably, as shown in fig. 2, a first glue layer 7 for enhancing the connection strength is provided at the riveted joint of the end of the rotating shaft 4 and the lower end of the rotating member 3. After the tail end of the rotating shaft 4 is riveted with the shaft sleeve 301 of the rotating part 3 through the riveting part 401, glue is injected into the shaft sleeve 301 to enable the rotating shaft 4 to be stably connected with the rotating part 3, the riveting part 401 is prevented from deforming when the rotating shaft 4 is subjected to large pulling force, and the stability of a product is improved.
Preferably, as shown in fig. 2, a snap ring 501 capable of extending into the housing 1 is disposed at the upper end of the bottom plate 5, a snap hook 502 is disposed on the outer wall of the snap ring 501, a first glue injection groove 503 is disposed below the snap hook 502, and a second glue injection groove 102 is disposed on the housing 1 corresponding to the first glue injection groove 503. When glue is solidified between the first glue injection groove 503 and the second glue injection groove 102, the solid glue can form a bolt structure between the first glue injection groove 503 and the second glue injection groove 102, and further prevent the bottom plate 5 from loosening in the housing 1.
Preferably, the side surface of the substrate 2 is provided with a limit protrusion 204, and the inner wall of the housing 1 is provided with a limit groove 103 into which the limit protrusion 204 can be inserted. The limiting protrusion 204 and the limiting groove 103 can further prevent the substrate 2 from rotating inside the housing 1.
Preferably, as shown in fig. 1, a disturbance preventing metal piece 205 for heat dissipation is provided on the back surface of the substrate 2. The metal sheet 205 can improve the heat dissipation performance of the substrate 2 and also can play a certain role in electromagnetic shielding.
Preferably, a second glue layer 8 is arranged between the bottom plate 5 and the substrate 2. Because the heat conductivity of the solid glue is superior to that of air, the second glue layer 8 can lead out heat on the substrate 2 more quickly, and the heat conductivity of the product is improved, so that the performance of the product is improved.
Preferably, the rotating member 3 is provided with a clamping column 303 for mounting the brushes 302, and the brushes 302 are fixedly connected with the turntable through the clamping column 303.
Preferably, the brushes 302 are all hook-type brushes 302.
Preferably, a bolt hole is formed in the rotating shaft 4, and the rotating shaft 4 is fixedly connected with the bolt 6 through the bolt hole.
Compared with the prior art, the utility model has the advantages of as follows: 2 covers of this steering wheel sensor's base plate are established and are rotated 3 below, and pivot 4 and rotation 3 riveting, this structural design greatly reduced this potentiometre sensor's product height, realized ultra-thin technological effect, do benefit to the miniaturized design of product. Meanwhile, the metal plate on the substrate 2 and the second glue layer between the substrate 2 and the bottom plate 5 effectively improve the heat dissipation rate of the sensor.
The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and substitutions can be made without departing from the technical principle of the present application, and these modifications and substitutions should also be regarded as the protection scope of the present application.
Claims (9)
1. An ultra-thin steering engine sensor, its characterized in that includes:
the middle position of the shell is provided with a rotating shaft hole, and one side of the shell, corresponding to the substrate, is provided with a wiring port;
the substrate is arranged in the shell, the front surface of the substrate is provided with a resistor disc, the back surface of the conductive disc is provided with a wiring conductive disc, and the middle position of the substrate is provided with a through hole for the rotating piece to pass through;
the rotating piece is fixedly provided with a shaft sleeve inserted into the through hole and an electric brush used for connecting the resistance chip and the conducting strip below the rotating piece, the substrate is sleeved outside the shaft sleeve through the through hole, and the electric brush can rotate on the resistance chip and the conducting strip through the rotating piece;
the tail end of the rotating shaft is provided with a riveting part, and the rotating shaft penetrates through the rotating shaft hole, the rotating part and the base plate in sequence and is riveted with the rotating part in the shaft sleeve through the riveting part;
the bottom plate is fixedly arranged at the bottom of the shell.
2. The ultrathin steering engine sensor according to claim 1, wherein a first glue layer for enhancing the connection strength is arranged at the riveted joint between the tail end of the rotating shaft and the lower end of the rotating member.
3. The ultra-thin steering engine sensor according to claim 1, wherein a snap ring capable of extending into the housing is arranged at the upper end of the bottom plate, a snap hook is arranged on the outer wall of the side of the snap ring, a first glue injection groove is arranged below the snap hook, and a second glue injection groove is arranged on the housing corresponding to the first glue injection groove.
4. The ultra-thin steering engine sensor according to claim 1, wherein a limit protrusion is disposed on a side surface of the substrate, and a limit groove into which the limit protrusion can be inserted is disposed on an inner wall of the housing.
5. The ultra-thin steering engine sensor according to claim 1 or 4, wherein an anti-interference metal sheet for heat dissipation is disposed on the back of the substrate.
6. The ultra-thin steering engine sensor of claim 5, wherein a second glue layer is disposed between the bottom plate and the base plate.
7. The ultra-thin steering engine sensor according to claim 1, wherein the rotating member is provided with a clamping column for mounting the electric brush, and the electric brush is fixedly connected with the turntable through the clamping column.
8. The ultra-thin steering engine sensor of claim 7, wherein the brushes are hook-type brushes.
9. The ultra-thin steering engine sensor according to claim 1, wherein the rotating shaft is provided with a bolt hole, and the rotating shaft is fixedly connected with a bolt through the bolt hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221327803.4U CN217504666U (en) | 2022-05-30 | 2022-05-30 | Ultrathin steering engine sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221327803.4U CN217504666U (en) | 2022-05-30 | 2022-05-30 | Ultrathin steering engine sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217504666U true CN217504666U (en) | 2022-09-27 |
Family
ID=83357622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221327803.4U Active CN217504666U (en) | 2022-05-30 | 2022-05-30 | Ultrathin steering engine sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217504666U (en) |
-
2022
- 2022-05-30 CN CN202221327803.4U patent/CN217504666U/en active Active
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