Angle displacement sensing device and measuring system
The simplified design of the angle displacement sensor device solves the problems of high cost and low precision of existing sensors, achieves the effect of simplifying the installation structure and reducing costs, and is suitable for harsh environments.
Patent Information
- Application Number
- CN202422990347.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-12-04
AI Technical Summary
Existing angular displacement sensors are complex in design, high in cost, low in precision, cannot be applied in harsh environments, and have a long debugging cycle.
An angular displacement sensing device with a simplified design is adopted. By setting a rotor assembly accommodating cavity on the main shell, the rotor body is directly and rotatably installed. The magnet is fixed to one end of the rotor body close to the sensing circuit board. Combined with elastic components and sealing structures, the installation structure is simplified and the preparation cost is reduced.
It simplifies the design and reduces costs while improving measurement accuracy and applicability, and can maintain high reliability in harsh environments.
Smart Images
Figure CN223376561U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of measurement technology, and in particular to an angular displacement sensing device and a measurement system. Background Art
[0002] Angle displacement sensor, also known as angular displacement sensor, is a type of displacement sensor. It adopts non-contact patented design. Compared with other traditional angular displacement measuring instruments such as synchronous analyzers and potentiometers, it effectively improves long-term reliability. Its unique design can ensure measurement accuracy without using easy-to-wear moving parts such as slip rings, blades, contact cursors, brushes, etc.
[0003] Generally speaking, existing angular displacement sensors adopt a relatively complex external design to measure small angles, and their IP protection level is also low, making them unsuitable for occasions such as harsh environments. Because of their split design, they often have low measurement accuracy, long debugging cycles, and high costs. Utility Model Content
[0004] The purpose of this application is to provide an angular displacement sensing device and a measurement system that can achieve the technical effects of simplifying the design and reducing costs.
[0005] In a first aspect, the present application provides an angular displacement sensing device, comprising a main body housing, a sensing circuit board, and a rotor assembly;
[0006] The main body shell is provided with a rotor assembly accommodating cavity, and the induction circuit board is installed inside the main body shell;
[0007] The rotor assembly includes a rotor body and a magnet. The rotor body is rotatably mounted in the rotor assembly accommodating cavity. The magnet is disposed between the rotor body and the inductive circuit board and is fixedly mounted on one end of the rotor body.
[0008] In the above implementation process, the angular displacement sensing device directly rotatably installs the rotor body in the rotor assembly accommodating cavity by providing a rotor assembly accommodating cavity on the main body shell. The matching installation method between the rotor body and the rotor assembly accommodating cavity is simple and convenient, and the magnet is provided between the rotor body and the inductive circuit board, and the magnet is fixedly installed at one end of the rotor body close to the inductive circuit board. The installation structure is simplified without affecting the measurement accuracy of the rotor assembly, and the preparation cost is reduced. Therefore, the angular displacement sensing device can achieve the technical effect of simplifying the design and reducing the cost.
[0009] Furthermore, the rotor assembly further includes an elastic component, one end of the elastic component is fixedly connected to the rotor assembly accommodating cavity, and the other end of the elastic component is fixedly connected to the rotor body.
[0010] In the above implementation process, during the rotation of the rotor body, the elastic component will switch between the natural state and the stretched state, and the rotor body can return to the initial position under the action of the elastic component.
[0011] Furthermore, the elastic component is a spring mechanism, which is sleeved on the outside of the rotor body, and one end of the spring mechanism is fixedly connected to the rotor assembly accommodating cavity, and the other end of the spring mechanism is fixedly connected to the rotor body.
[0012] Furthermore, the spring mechanism is a torsion spring.
[0013] In the above implementation process, the two ends of the torsion spring are respectively fixed to the rotor assembly accommodating cavity and the rotor body. When the rotor body rotates around the center of the torsion spring, the torsion spring will generate torque or rotational force, forcing the rotor body to return to its initial position. The torsion spring can store and release angular energy or statically fix the rotor body by rotating the force arm around the central axis of the spring body.
[0014] Furthermore, the main body shell includes a front shell and a bottom shell, the front shell is provided with the rotor assembly accommodating cavity, the bottom shell is matched with the front shell and installed, the bottom shell is provided with corresponding hardware terminals, and the hardware terminals are electrically connected to the induction circuit board.
[0015] In the above implementation process, the electrical signal of the sensing circuit board is transmitted to other devices through the electrical connection between the hardware terminals and the sensing circuit board, thereby realizing the output of the angular displacement sensing signal.
[0016] Furthermore, the face shell is a metal face shell.
[0017] Furthermore, the angular displacement sensor device further includes a first sealing component, and the bottom shell and the surface shell are sealed by the first sealing component.
[0018] In the above implementation process, the bottom shell and the surface shell are sealed and installed by the first sealing component, thereby preventing the hardware terminals from excessive contact with the air, and having an effective rust-proof effect on the hardware terminals.
[0019] Furthermore, the rotor assembly further includes a rotor cover, which is installed to cover the rotor assembly accommodating cavity.
[0020] Furthermore, the rotor assembly further includes a second sealing component, and the rotor cover is sealed and mounted with the rotor assembly accommodating cavity via the second sealing component.
[0021] In the above implementation process, the rotor cover is installed on the rotor assembly accommodating cavity, so that the rotor assembly is sealed inside the space between the rotor cover and the rotor assembly accommodating cavity, which can protect the magnet and elastic components from contact with the outside world, and has the effect of waterproof, dustproof and rust-proof, which can effectively extend the service life of the magnet and elastic components, and thus extend the service life of the angle displacement sensor device.
[0022] In a second aspect, the present application provides an angular displacement sensing device, comprising a main body housing, a sensing circuit board, a hardware brush, and a rotor assembly;
[0023] The main body shell is provided with a rotor assembly accommodating cavity, and the main body shell is provided with hardware terminals;
[0024] The sensing circuit board is installed inside the main body shell;
[0025] The rotor assembly is rotatably arranged in the rotor assembly accommodating cavity of the main body shell, the hardware brush is fixedly installed on the rotor assembly, and the hardware brush is electrically connected to the induction circuit board.
[0026] In the above implementation process, the angular displacement sensing device is a contact angle sensor, which is different from the non-contact angle sensor described in the first aspect.
[0027] In a third aspect, the present application provides a measurement system comprising the angular displacement sensing device described in any one of the first aspects.
[0028] Other features and advantages disclosed in the present application will be described in the following description, or some features and advantages can be inferred or determined without doubt from the description, or can be learned by implementing the above-mentioned technology disclosed in the present application.
[0029] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.
[0031] Figure 1 A schematic diagram of the explosion structure of the first angular displacement sensor device provided in an embodiment of the present application;
[0032] Figure 2A schematic diagram of the first perspective structure of the first angular displacement sensing device provided in an embodiment of the present application;
[0033] Figure 3 A schematic diagram of the second viewing angle structure of the first angular displacement sensing device provided in an embodiment of the present application;
[0034] Figure 4 A schematic cross-sectional view of the first angular displacement sensing device provided in an embodiment of the present application;
[0035] Figure 5 A schematic diagram of the explosion structure of the second angular displacement sensor device provided in an embodiment of the present application;
[0036] Figure 6 This is a schematic cross-sectional view of the second angular displacement sensing device provided in an embodiment of the present application.
[0037] Figure numerals: main body shell 100; rotor assembly accommodating chamber 110; surface shell 120; bottom shell 130; hardware terminal 140; first sealing component 150; induction circuit board 200; rotor assembly 300; rotor body 310; magnet 320; elastic component 330; rotor cover 340; hardware brush 400; sealing ring 500. DETAILED DESCRIPTION
[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application.
[0039] In this application, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe this application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.
[0040] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to express a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.
[0041] Furthermore, the terms "installed," "disposed," "provided with," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or point connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.
[0042] Furthermore, the terms "first," "second," etc., are primarily used to distinguish between different devices, elements, or components (which may or may not be of the same type and configuration), and are not intended to indicate or imply the relative importance or quantity of the devices, elements, or components indicated. Unless otherwise specified, "plurality" means two or more.
[0043] The embodiments of the present application provide an angular displacement sensing device and a measurement system, which can be used in the process of measuring angular displacement. The angular displacement sensing device directly rotatably installs the rotor body in the rotor assembly accommodating cavity by providing a rotor assembly accommodating cavity on the main body shell. The matching installation method between the rotor body and the rotor assembly accommodating cavity is simple and convenient, and the magnet is provided between the rotor body and the inductive circuit board, and the magnet is fixedly installed at one end of the rotor body close to the inductive circuit board. The installation structure is simplified without affecting the measurement accuracy of the rotor assembly, and the preparation cost is reduced. Therefore, the angular displacement sensing device can achieve the technical effect of simplifying the design and reducing the cost.
[0044] See Figures 1 to 4 , Figure 1 This is a schematic diagram of the explosion structure of the first angular displacement sensor device provided in an embodiment of the present application. Figure 2 This is a schematic diagram of the first perspective structure of the first angular displacement sensing device provided in an embodiment of the present application. Figure 3 This is a schematic diagram of the second viewing angle structure of the first angular displacement sensing device provided in an embodiment of the present application. Figure 4 This is a schematic cross-sectional view of the first angular displacement sensor device provided in an embodiment of the present application; the angular displacement sensor device includes a main body housing 100, a sensing circuit board 200, and a rotor assembly 300;
[0045] Illustratively, the main housing 100 is provided with a rotor assembly accommodating cavity 110, and the sensing circuit board 200 is installed inside the main housing 100; wherein, installing the sensing circuit board 200 inside the main housing 100 can protect the sensing circuit board 200 from water vapor erosion or interference from the external environment.
[0046] Exemplarily, the rotor assembly 300 includes a rotor body 310 and a magnet 320 . The rotor body 310 is rotatably mounted in the rotor assembly accommodating cavity 110 . The magnet 320 is disposed between the rotor body 310 and the inductive circuit board 200 , and the magnet 320 is fixedly mounted on one end of the rotor body 310 .
[0047] The shape of the magnet 320 may be rectangular, circular, etc.; it should be noted that this is only an example and the shape of the magnet 320 is not limited.
[0048] For example, the rotor body 310 and the magnet 320 are main components of the rotor assembly 300. When the rotor body 310 rotates, the rotor assembly 300 cooperates with the sensing circuit board 200 to generate corresponding electrical signals, thereby realizing the sensing measurement of angular displacement.
[0049] In some embodiments, the angular displacement sensing device directly rotatably installs the rotor body 310 in the rotor assembly accommodating cavity 110 by providing a rotor assembly accommodating cavity 110 on the main shell 100. The matching installation method between the rotor body 310 and the rotor assembly accommodating cavity 110 is simple and convenient, and the magnet 320 is provided between the rotor body 310 and the sensing circuit board 200, and the magnet 320 is fixedly installed at one end of the rotor body 310 close to the sensing circuit board 200. The installation structure is simplified without affecting the measurement accuracy of the rotor assembly 300, and the preparation cost is reduced; thus, the angular displacement sensing device can achieve the technical effect of simplifying the design and reducing the cost.
[0050] Exemplarily, the rotor assembly 300 further includes an elastic component 330 , one end of the elastic component 330 is fixedly connected to the rotor assembly accommodating cavity 110 , and the other end of the elastic component 330 is fixedly connected to the rotor body 310 .
[0051] For example, during the rotation of the rotor body 310 , the elastic component 330 switches between the natural state and the stretched state, and the rotor body 310 can return to the initial position under the action of the elastic component 330 .
[0052] Exemplarily, the elastic component 330 is a spring mechanism, which is sleeved on the outside of the rotor body 310 , and one end of the spring mechanism is fixedly connected to the rotor assembly accommodating cavity 110 , and the other end of the spring mechanism is fixedly connected to the rotor body 310 .
[0053] Exemplarily, the spring mechanism is a torsion spring; wherein, the torsion spring (Torsion Spring), the two ends of the torsion spring are respectively fixed to the rotor assembly accommodating cavity 110 and the rotor body 310. When the rotor body 310 rotates around the center of the torsion spring, the torsion spring will generate torque or rotational force, forcing the rotor body 310 to be pulled back to its initial position. The torsion spring can store and release angular energy or statically fix the rotor body 310 by rotating the force arm around the central axis of the spring body.
[0054] Exemplarily, the main shell 100 includes a front shell 120 and a bottom shell 130 . The front shell 120 is provided with a rotor assembly accommodating cavity 110 . The bottom shell 130 is matched with the front shell 120 and is provided with corresponding hardware terminals 140 . The hardware terminals 140 are electrically connected to the induction circuit board 200 .
[0055] For example, through the electrical connection between the hardware terminal 140 and the sensing circuit board 200 , the electrical signal of the sensing circuit board 200 is transmitted to other devices to achieve the output of the angular displacement sensing signal.
[0056] Exemplarily, the housing 120 is a metal housing.
[0057] Exemplarily, the angular displacement sensing device further includes a first sealing component 150 , and the bottom shell 130 and the surface shell 120 are sealed by the first sealing component 150 .
[0058] For example, the bottom shell 130 and the surface shell 120 are sealed and installed by the first sealing component 150 , thereby preventing the hardware terminals from excessively contacting the air and effectively preventing the hardware terminals 140 from rusting.
[0059] Exemplarily, the rotor assembly 300 further includes a rotor cover 340 , which is mounted to cover the rotor assembly accommodating cavity 110 .
[0060] For example, by covering and installing the rotor cover 340 on the rotor assembly accommodating cavity 110, the rotor assembly 300 is sealed inside the space between the rotor cover 340 and the rotor assembly accommodating cavity 110, which can protect the magnet 320 and the elastic component 330 from contact with the outside world, and achieve the effects of waterproof, dustproof and rust-proof, which can effectively extend the service life of the magnet 320 and the elastic component 330, and thus extend the service life of the angle displacement sensor device.
[0061] Exemplarily, the rotor assembly 300 further includes a second sealing component, and the rotor cover 340 is sealed and mounted with the rotor assembly accommodating cavity 110 via the second sealing component.
[0062] Optionally, the second sealing component may be a sealing ring.
[0063] In some embodiments, in addition to the sealing ring, the sealing method between the rotor cover 340 and the rotor assembly accommodating cavity 110 can also be oiling, waxing, ultrasonic welding and other methods. This is only used as an example and not as a limitation. That is, the sealing between the rotor cover 340 and the rotor assembly accommodating cavity 110 can adopt other types of sealing methods according to specific needs.
[0064] For example, the present invention provides a measurement system comprising: Figures 1 to 3 The angular displacement sensing device shown.
[0065] In some embodiments, a shielding cover is provided inside the main shell 100, which matches the bottom shell 130 or the surface shell 120, and can prevent the hardware terminals 140 from excessive contact with air, prevent the hardware terminals 140 from rusting, and effectively achieve an anti-rust effect.
[0066] In some embodiments, the main housing 100 and the rotor assembly accommodating cavity 110 are sealed, and the rotor assembly accommodating cavity 110 and the rotor back cover 340 are sealed. The sealing method can be a sealing ring, oiling, waxing, ultrasonic welding, etc., which are only examples and not limitations.
[0067] The main body housing 100 and the rotor assembly accommodating cavity 110 are sealed, which can more effectively achieve the waterproof and dustproof effect, so that the protection level of the angle displacement sensor device reaches IP67 or above;
[0068] The seal between the rotor assembly accommodating cavity 110 and the rotor back cover 340 can protect the magnet 320 and the elastic component 330 from contact with the outside world, and has the effects of waterproofing, dustproofing and rust-proofing, which can effectively extend the service life of the magnet 320 and the elastic component 330, and thus extend the service life of the angle displacement sensor device.
[0069] For example, Figures 1 to 4 The angular displacement sensing device shown is a non-contact angular displacement sensor;
[0070] See Figure 5 and Figure 6 , Figure 5 This is a schematic diagram of the explosion structure of the second angular displacement sensor device provided in an embodiment of the present application. Figure 6 This is a schematic cross-sectional view of the second angular displacement sensor device provided in an embodiment of the present application; wherein, Figure 5 and Figure 6 The angular displacement sensing device shown is a contact type, which includes a main body housing 100, a sensing circuit board 200, a hardware brush 400 and a rotor assembly 300;
[0071] Exemplarily, the main body housing 100 is provided with a rotor assembly accommodating cavity 110 , and the main body housing 100 is provided with hardware terminals;
[0072] The sensing circuit board 200 is installed inside the main housing 100;
[0073] For example, the rotor assembly 300 is rotatably disposed in the rotor assembly accommodating chamber 110 of the main housing 100, and the metal brush 400 is fixedly mounted on the rotor assembly 300, and the metal brush 400 is electrically connected to the sensing circuit board 200, wherein the metal brush generates a corresponding electrical signal according to the rotation angle of the rotor assembly 300;
[0074] Figure 5 、 Figure 6 The angle displacement sensing device shown is a contact angle sensor. Figures 1 to 4 The non-contact angle sensor shown is distinguished.
[0075] In some embodiments, Figure 5 、 Figure 6 The angular displacement sensing device shown further includes a sealing ring 500 , which is mounted on the rotor assembly 300 ; optionally, a rotor cover 340 is mounted to cover the rotor assembly accommodating cavity 110 .
[0076] In all embodiments of the present application, "big" and "small" are relative, "more" and "less" are relative, and "up" and "down" are relative. The expressions of such relative terms will not be elaborated in the embodiments of the present application.
[0077] It should be understood that the phrases “in this embodiment,” “in an embodiment of the present application,” or “as an optional implementation” mentioned throughout the specification mean that specific features, structures, or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, “in this embodiment,” “in an embodiment of the present application,” or “as an optional implementation” appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in one or more embodiments in any suitable manner. Those skilled in the art should also be aware that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily required for the present application.
[0078] In the various embodiments of the present application, it should be understood that the size of the serial numbers of the above-mentioned processes does not necessarily mean the order of execution. The order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.
[0079] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included within the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.
Claims
1. An angular displacement sensing device, characterized in that: It includes a main body shell, an induction circuit board and a rotor assembly; The main body shell is provided with a rotor assembly accommodating cavity, and the induction circuit board is installed inside the main body shell; The rotor assembly includes a rotor body and a magnet. The rotor body is rotatably mounted in the rotor assembly accommodating cavity. The magnet is disposed between the rotor body and the inductive circuit board and is fixedly mounted on one end of the rotor body.
2. The angular displacement sensing device according to claim 1, characterized in that: The rotor assembly further includes an elastic component, one end of which is fixedly connected to the rotor assembly accommodating cavity, and the other end of which is fixedly connected to the rotor body.
3. The angular displacement sensing device according to claim 2, characterized in that: The elastic component is a spring mechanism, which is sleeved on the outside of the rotor body, and one end of the spring mechanism is fixedly connected to the rotor assembly accommodating cavity, and the other end of the spring mechanism is fixedly connected to the rotor body.
4. The angular displacement sensing device according to claim 3, characterized in that: The spring mechanism is a torsion spring.
5. The angular displacement sensing device according to claim 1, characterized in that: The main body shell includes a front shell and a bottom shell. The front shell is provided with the rotor assembly accommodating cavity. The bottom shell is matched with the front shell and installed. The bottom shell is provided with corresponding hardware terminals. The hardware terminals are electrically connected to the induction circuit board.
6. The angular displacement sensing device according to claim 5, characterized in that: The face shell is a metal face shell.
7. The angular displacement sensing device according to claim 5 or 6, characterized in that: The angular displacement sensor device further includes a first sealing component, and the bottom shell and the surface shell are sealed by the first sealing component.
8. The angular displacement sensing device according to claim 1, characterized in that: The rotor assembly further includes a rotor cover and a second sealing component. The rotor cover is covered and installed in the rotor assembly accommodating cavity. The rotor cover is sealed and installed in the rotor assembly accommodating cavity through the second sealing component.
9. An angular displacement sensing device, characterized in that: Including main body shell, induction circuit board, hardware brush and rotor assembly; The main body shell is provided with a rotor assembly accommodating cavity, and the main body shell is provided with hardware terminals; The sensing circuit board is installed inside the main body shell; The rotor assembly is rotatably arranged in the rotor assembly accommodating cavity of the main body shell, the hardware brush is fixedly installed on the rotor assembly, and the hardware brush is electrically connected to the induction circuit board.
10. A measurement system, characterized in that: An angular displacement sensing device comprising any one of claims 1 to 9.