Angle sensor

Abstract

The utility model provides an angle sensor which comprises a sensor body, a rotating arm and an inserting rod, the sensor body comprises a shell, the shell is provided with a first installation cylinder and an inserting hole communicated with the first installation cylinder, the inserting hole is arranged adjacent to the bottom wall of the first installation cylinder, and the axial direction of the inserting hole is perpendicular to the axial direction of the first installation cylinder. The inserting holes are used for inserting the inserting rods; the rotating arm comprises a swing arm part and a rotating shaft part arranged on one side of the swing arm part, the rotating shaft part is matched with the first mounting cylinder, a limiting groove is formed in the end, away from the swing arm part, of the rotating shaft part, the limiting groove is formed in the circumferential direction of the rotating shaft part, and the limiting groove is matched with the inserting rod; part of the rod body of the inserting rod is located in the limiting groove, and a gap is formed between the groove wall of the limiting groove and the circumferential face of the rod body of the inserting rod. The angle sensor is simple in structure, the abrasion degree of the rotating arm in the rotating process can be reduced, and the angle sensor cannot generate mechanical abnormal sound under the long-term working condition.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, and particularly relates to an angle sensor. Background Art

[0002] An angle sensor is a sensor used to detect angle changes and convert them into utilizable electrical signals, which can achieve precise measurement and control of vehicle body height, automatic headlight angle, etc., and is widely used in the automotive field.

[0003] The most commonly used traditional angle sensor is a rotary arm type angle sensor, which consists of a sensor body and a rotary arm. To achieve the rotational connection between the rotary arm and the sensor body, multiple connecting parts or rotating parts are usually required to connect the rotary arm and the sensor body, making the overall structure relatively complex, and the production cost and maintenance cost are also relatively high. Moreover, the structure of using multiple connecting parts or rotating parts to connect the rotary arm and the sensor body is more likely to wear and deform during long-term use in a harsh environment, resulting in uneven force on the rotary arm, which causes mechanical abnormal noise in the angle sensor during operation, seriously affecting the operation efficiency, and even causing the rotary arm to break and deform. Summary of the Utility Model

[0004] Based on this, the purpose of the present utility model is to provide an angle sensor, aiming to solve the technical problems in the prior art that the overall structure of the rotary arm type angle sensor is relatively complex, the production cost and maintenance cost are also relatively high, and it is more likely to wear and deform during long-term use in a harsh environment, resulting in uneven force on the rotary arm, which causes mechanical abnormal noise in the angle sensor during operation, seriously affecting the operation efficiency, and even causing the rotary arm to break and deform.

[0005] The purpose of the present utility model is to provide an angle sensor, including a sensor body, a rotary arm, and a plug rod for connecting the sensor body and the rotary arm. The sensor body includes a housing, and the housing is provided with a first mounting cylinder and a jack communicating with the first mounting cylinder. The jack is arranged adjacent to the bottom wall of the first mounting cylinder, and the axial direction of the jack is perpendicular to the axial direction of the first mounting cylinder. The jack is used for plugging and connecting with the plug rod;

[0006] The rotating arm includes a swing arm portion and a rotating shaft portion arranged on one side of the swing arm portion, the rotating shaft portion is adapted to the first mounting tube, a limiting groove is provided on one end of the rotating shaft portion away from the swing arm portion, the limiting groove is arranged along the circumference of the rotating shaft portion, the limiting groove is adapted to the insertion rod, when the rotating shaft portion is located in the first mounting tube and the insertion rod is inserted into the insertion hole, part of the rod body on the insertion rod is located in the limiting groove, and a gap is provided between the groove wall of the limiting groove and the circumferential surface of the rod body of the insertion rod.

[0007] Compared with the prior art, the beneficial effect of the angle sensor of the utility model is that the rotational connection between the rotating arm and the sensor body can be realized through the cooperation between the limiting groove of the rotating shaft part on the rotating arm and the insertion rod. Compared with the existing rotating arm type angle sensor, the investment in parts is reduced, the overall structure is simpler, and the production cost and maintenance cost are greatly reduced. In actual use, the rotating arm can use the limiting groove as a fixed track in the sensor body and cooperate with the insertion rod to rotate, which can reduce the degree of wear of the rotating arm during the rotation process, so that the angle sensor will not have mechanical abnormal noise under long-term working conditions, thereby improving the service life of the angle sensor and effectively avoiding the deformation and twisting of the rotating arm due to uneven force.

[0008] In addition, the angle sensor according to the present invention may also have the following additional technical features:

[0009] Furthermore, the sensor body further comprises a circuit board and at least two terminals electrically connected to the circuit board, and the circuit board and the terminals are both arranged in the housing.

[0010] Furthermore, a second mounting tube is provided on a side of the shell away from the first mounting tube, the second mounting tube is arranged opposite to the first mounting tube, and the circuit board and the terminal are provided in the second mounting tube.

[0011] Furthermore, the housing is provided with a plug-in cylinder, one end of the terminal is fixedly arranged in the second mounting cylinder, and the other end of the terminal is arranged in the plug-in cylinder and is used to connect with an external device.

[0012] Furthermore, the sensor body further comprises a cover plate, and the cover plate is adapted to the tube opening of the second installation tube to close the second installation tube.

[0013] Furthermore, the shell is provided with at least two connecting ears, the connecting ears are provided with mounting holes, the mounting holes are arranged along the axial direction of the first mounting tube, and a connecting sleeve is fixed in the mounting hole, and the connecting sleeve is provided with a connecting hole.

[0014] Furthermore, an abutment groove is provided at one end of the swing arm portion, the rotating shaft portion is provided in the abutment groove, and the abutment groove is adapted to the first mounting tube.

[0015] Furthermore, a magnet installation groove is provided on an end of the rotating shaft portion away from one end of the swing arm portion, and a magnet is provided in the magnet installation groove.

[0016] Furthermore, a sealing groove is provided on one end of the rotating shaft portion close to the swing arm portion, the sealing groove is arranged along the circumference of the rotating shaft portion, and a sealing ring is provided in the sealing groove.

[0017] Furthermore, the rotating arm further comprises a handle portion, wherein the handle portion is arranged on a side of the swing arm portion away from the rotating shaft portion, and the handle portion and the rotating shaft portion are respectively arranged at two ends of the swing arm portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional structural diagram of the angle sensor of the utility model;

[0019] Figure 2 This is a cross-sectional structural diagram of the angle sensor of the utility model;

[0020] Figure 3 This is an exploded schematic diagram of the angle sensor of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the rotating arm in the angle sensor of the utility model.

[0022] Among them, the above-mentioned drawings include the following figure marks: 10-sensor body; 11-housing; 12-circuit board; 13-terminal; 14-cover plate; 15-magnet; 111-first mounting cylinder; 112-jack; 113-second mounting cylinder; 114-plug-in cylinder; 115-connecting ear; 116-connecting sleeve; 20-rotating arm; 21-rotating shaft; 22-swing arm; 23-handle; 201-magnet mounting groove; 202-limiting groove; 203-sealing groove; 204-abutment groove; 30-insertion rod; 40-sealing ring.

[0023] The following specific implementation manner will further illustrate the present utility model in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this utility model belongs. The terms used herein in the description of the utility model are only for the purpose of describing specific embodiments and are not intended to limit the utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0027] Please refer to Figures 1 to 4 , an angle sensor of the present utility model includes a sensor body 10, a rotating arm 20, and a plug rod 30 for connecting the sensor body 10 and the rotating arm 20.

[0028] As an example, the sensor body 10 includes a housing 11. A first mounting cylinder 111 and a jack 112 communicating with the first mounting cylinder 111 are provided on the housing 11. The jack 112 is arranged adjacent to the bottom wall of the first mounting cylinder 111. The axial direction of the jack 112 is perpendicular to the axial direction of the first mounting cylinder 111. The jack 112 is used for plugging with the plug rod 30. In this embodiment, an interference fit is provided between the plug rod 30 and the jack 112 so that the plug rod 30 cannot be separated from the jack 112, and it can also play a role in sealing the jack 112. On the side of the housing 11 facing away from the first mounting cylinder 111, a second mounting cylinder 113 is provided. The second mounting cylinder 113 is arranged opposite to the first mounting cylinder 111. Specifically, in this embodiment, the central axis of the second mounting cylinder 113 coincides with the central axis of the first mounting cylinder 111.

[0029] Furthermore, the sensor body 10 further includes a circuit board 12 and at least two terminals 13 electrically connected to the circuit board 12. The circuit board 12 and the terminals 13 are both disposed within the housing 11, and the circuit board 12 and the terminals 13 are provided within the second mounting cylinder 113. As a specific example, in this embodiment, the housing 11 is made of plastic material. A positioning post is provided on one side within the second mounting cylinder 113, and a positioning hole adapted to the positioning post is provided on the circuit board 12 to position the installation of the circuit board 12 on the housing 11. It should be understood that in order to improve the connection stability between the circuit board 12 and the housing 11, the circuit board 12 can be welded within the second mounting cylinder 113 on the housing 11 by using soldering technology. On the other side within the second mounting cylinder 113, three spaced-apart terminals 13 are provided. The terminals 13 are made of metal material, and each terminal 13 is integrally formed with the housing 11 by an injection molding process to ensure the firm and stable position of the terminals 13 within the housing 11.

[0030] Furthermore, a plug-in cylinder 114 is also provided on the housing 11. One end of the terminal 13 is fixedly provided within the second mounting cylinder 113 to achieve electrical connection with the circuit board 12, and the other end of the terminal 13 is disposed within the plug-in cylinder 114 and is used for connection with external devices.

[0031] Furthermore, at least two connecting lugs 115 are also provided on the housing 11. Mounting holes are provided on the connecting lugs 115. The mounting holes are arranged along the axial direction of the first mounting cylinder 111, and a connecting sleeve 116 is fixedly provided within the mounting holes. Connecting holes are provided on the connecting sleeve 116. As a specific example, in this embodiment, two connecting lugs 115 are provided on the housing 11. The two connecting lugs 115 are symmetrically arranged on two opposite sides of the first mounting cylinder 111. The connecting sleeve 116 can be made of metal material or plastic material. The connecting holes are internal threaded holes, and the connecting sleeve 116 is integrally formed with the housing 11 by an injection molding process to improve the connection stability between the connecting sleeve 116 and the housing 11 and prevent the connecting sleeve 116 from falling off during use. During actual use, the entire angular sensor can be disassembled and assembled onto the corresponding device through the cooperation of a fastener and the internal threaded holes on the connecting sleeve 116 for use.

[0032] Furthermore, the sensor body 10 further includes a cover plate 14, and the cover plate 14 is adapted to the mouth of the second mounting cylinder 113 to close the second mounting cylinder 113. As a specific example, in this embodiment, the cover plate 14 is made of plastic, and the cover plate 14 can play a role in waterproofing and dustproofing. To improve the connection stability between the cover plate 14 and the housing 11, the cover plate 14 can be welded to the second mounting cylinder 113 of the housing 11 through a welding process. It should be noted that the cover plate 14 is provided to protect the circuit board 12 and the terminals 13 in the second mounting cylinder 113, and the protection of the circuit board 12 and the terminals 13 is not limited to the method of setting the cover plate 14, and other methods that can achieve the purpose of protection, such as using potting glue for protection, can also be used.

[0033] As an example, the rotating arm 20 includes a swing arm portion 22 and a rotating shaft portion 21 provided on one side of the swing arm portion 22. The rotating shaft portion 21 is adapted to the first mounting cylinder 111. A limiting groove 202 is provided at one end of the rotating shaft portion 21 away from the swing arm portion 22. The limiting groove 202 is arranged along the circumferential direction of the rotating shaft portion 21, and the limiting groove 202 is adapted to the insertion rod 30. As a specific example, in this embodiment, the cross-section of the limiting groove 202 is semicircular. When the rotating shaft portion 21 is located in the first mounting cylinder 111 and the insertion rod 30 is inserted into the insertion hole 112, a part of the rod body of the insertion rod 30 is located in the limiting groove 202, and there is a gap between the groove wall of the limiting groove 202 and the circumferential surface of the rod body of the insertion rod 30. It should be noted that in this embodiment, the insertion rod 30 can be made of a metal material with a small coefficient of friction, so that the rotating arm 20 can rotate without wear, and the phenomenon of mechanical abnormal noise of the angle sensor can be effectively avoided.

[0034] Furthermore, an abutting groove 204 is provided at one end of the swing arm portion 22, and the rotating shaft portion 21 is provided in the abutting groove 204. The abutting groove 204 is adapted to the first mounting cylinder 111. The provision of the abutting groove 204 can play a role in guiding and positioning, making the assembly between the rotating arm 20 and the housing 11 more convenient. When the rotating shaft portion 21 completely enters the first mounting cylinder 111, the outer wall at the mouth of the first mounting cylinder 111 abuts against the groove wall of the abutting groove 204. Such a design can prevent external dust and the like from entering the first mounting cylinder 111 and affecting the rotation of the rotating shaft portion 21.

[0035] Furthermore, a magnet mounting groove 201 is provided at the end of the rotating shaft portion 21 away from the swing arm portion 22, and a magnet 15 is provided in the magnet mounting groove 201. When the rotating shaft portion 21 completely enters the first mounting cylinder 111, the magnet 15 is disposed opposite to the circuit board 12 in the second mounting cylinder 113.

[0036] Furthermore, a sealing groove 203 is provided on one end of the rotating shaft portion 21 close to the swing arm portion 22. The sealing groove 203 is arranged along the circumference of the rotating shaft portion 21, and a sealing ring 40 is provided in the sealing groove 203. The setting of the sealing ring 40 can reduce the gap between the cylinder wall of the first mounting cylinder 111 and the rotating shaft portion 21 to prevent external impurities such as sand and dust from entering the first mounting cylinder 111 through these gaps to affect the rotation of the rotating shaft portion 21.

[0037] Furthermore, the rotating arm 20 further includes a handle portion 23, which is disposed on a side of the swing arm portion 22 away from the shaft portion 21, and the handle portion 23 and the shaft portion 21 are respectively disposed at both ends of the swing arm portion 22. It should be noted that the housing 11 and the shaft portion 21 and the swing arm portion 22 on the rotating arm 20 are respectively provided with a proper amount of weight-reducing holes to reduce the weight of the housing 11 and the rotating arm 20 themselves, thereby reducing the weight of the entire angle sensor, achieving a lightweight design, and improving applicability.

[0038] In summary, the beneficial effect of the angle sensor provided by the utility model is that the rotational connection between the rotating arm and the sensor body can be realized through the cooperation between the limiting groove of the rotating shaft part on the rotating arm and the insertion rod. Compared with the existing rotating arm type angle sensor, the investment in parts is reduced, the overall structure is simpler, and the production cost and maintenance cost are greatly reduced. In actual use, the rotating arm can use the limiting groove as a fixed track in the sensor body and rotate in coordination with the insertion rod, which can reduce the degree of wear of the rotating arm during the rotation process, so that the angle sensor will not have mechanical abnormal noise under long-term working conditions, thereby improving the service life of the angle sensor and effectively avoiding the deformation and twisting of the rotating arm due to uneven force.

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of application of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model application shall be based on the attached claims.

Claims

1. An angle sensor, characterized in that, The sensor body comprises a sensor body, a rotating arm, and a plug rod for connecting the sensor body and the rotating arm, wherein the sensor body comprises a shell, the shell is provided with a first mounting tube and a plug hole communicating with the first mounting tube, the plug hole is arranged adjacent to the bottom wall of the first mounting tube, the axial direction of the plug hole is perpendicular to the axial direction of the first mounting tube, and the plug hole is used to be plugged with the plug rod; The rotating arm includes a swing arm portion and a rotating shaft portion arranged on one side of the swing arm portion, the rotating shaft portion is adapted to the first mounting tube, a limiting groove is provided on one end of the rotating shaft portion away from the swing arm portion, the limiting groove is arranged along the circumference of the rotating shaft portion, the limiting groove is adapted to the insertion rod, when the rotating shaft portion is located in the first mounting tube and the insertion rod is inserted into the insertion hole, part of the rod body on the insertion rod is located in the limiting groove, and a gap is provided between the groove wall of the limiting groove and the circumferential surface of the rod body of the insertion rod.

2. The angular sensor according to claim 1, characterized in that, The sensor body further comprises a circuit board and at least two terminals electrically connected to the circuit board, and the circuit board and the terminals are both arranged in the housing.

3. The angular sensor according to claim 2, characterized in that, A second mounting tube is provided on the housing at a side away from the first mounting tube. The second mounting tube is arranged opposite to the first mounting tube. The circuit board and the terminal are provided in the second mounting tube.

4. The angular sensor according to claim 3, wherein The housing is also provided with an inserting cylinder, one end of the terminal is fixedly arranged in the second installation cylinder, and the other end of the terminal is arranged in the inserting cylinder and is used for connecting with an external device.

5. The angle sensor according to claim 3, characterized in that, The sensor body further includes a cover plate, and the cover plate is adapted to the tube opening of the second installation tube to close the second installation tube.

6. The angle sensor according to claim 1, characterized in that, The shell is also provided with at least two connecting ears, each of which is provided with a mounting hole. The mounting hole is arranged along the axial direction of the first mounting tube, and a connecting sleeve is fixed in the mounting hole, and the connecting sleeve is provided with a connecting hole.

7. The angular sensor according to claim 1, characterized in that, An abutment groove is provided at one end of the swing arm portion, the rotating shaft portion is provided in the abutment groove, and the abutment groove is adapted to the first mounting tube.

8. The angular sensor according to claim 1, characterized in that A magnet installation groove is provided on the end of the rotating shaft part away from one end of the swing arm part, and a magnet is provided in the magnet installation groove.

9. The angular sensor according to claim 1, characterized in that A sealing groove is provided on one end of the rotating shaft portion close to the swing arm portion. The sealing groove is arranged along the circumference of the rotating shaft portion, and a sealing ring is provided in the sealing groove.

10. The angular sensor according to claim 1, wherein, The rotating arm further comprises a handle portion, which is arranged on a side of the swing arm portion away from the rotating shaft portion, and the handle portion and the rotating shaft portion are respectively arranged at two ends of the swing arm portion.

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