Device for detecting Hall sensor
By designing a device for detecting Hall sensors and utilizing the cooperation of the rotating part and the rotation module to judge the status of the Hall sensor, the safety hazard problem caused by non-detection is solved, and the reliability of speed detection of intelligent driving vehicles is ensured.
Patent Information
- Application Number
- CN202422688356.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-04
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-11-04
AI Technical Summary
In the prior art, before applying Hall sensors to speed detection in intelligent driving vehicles, their usable or damaged states are not detected, which may result in uncontrollable vehicle speed and pose a safety hazard.
A device including a rotating part, a motion shaft, a sleeve, a rotation module and a display module is designed. By rotating the rotating part to make the internal and external threads fit together, the motion shaft drives the rotation module to rotate. The display status changes of different area parts of the rotation module in space are used to judge the usable state or damage state of the Hall sensor.
The state of the Hall sensor can be detected before it is applied, ensuring the reliability of speed detection of intelligent driving vehicles and avoiding safety hazards during driving.
Smart Images
Figure CN223320426U_ABST
Abstract
Description
Technical Field
[0001] The embodiments of the present application relate to the field of sensor detection, and specifically to a device for detecting a Hall effect sensor. Background Art
[0002] Hall effect sensors are currently commonly used for speed detection in autonomous vehicles. They generate different square wave signals based on the vehicle's speed and transmit them to the vehicle's control unit. The control unit analyzes the square wave's duty cycle and voltage amplitude, outputting an average voltage signal from which it can determine the vehicle's speed.
[0003] However, in the prior art, before applying a Hall effect sensor to speed detection in a smart driving vehicle, there is generally no step to detect whether the Hall effect sensor itself is in a usable state or a damaged state. Therefore, if a damaged Hall effect sensor is applied to speed detection in a smart driving vehicle, the vehicle speed may become uncontrollable, thereby creating a safety hazard during vehicle driving. Utility Model Content
[0004] In view of the above problems, an embodiment of the present application provides a device for detecting a Hall sensor, which overcomes or at least partially solves the above problem that before the Hall sensor is applied to the speed detection of an intelligent driving vehicle, there is no step to detect whether the Hall sensor itself is in a usable state or a damaged state.
[0005] According to a first aspect of an embodiment of the present application, there is provided a device for detecting a Hall sensor, comprising: a rotating part, a moving shaft, a bushing, a rotation module and a display module. The rotating part is provided with a first accommodating cavity, the first end of the moving shaft is accommodated in the first accommodating cavity and fixed to the rotating part, and a gap is left between the first end of the moving shaft and the inner wall of the rotating part. The bushing is provided with a second accommodating cavity and a first through hole, the first through hole is provided on the bottom wall of the bushing, and the side wall of the bushing is provided with an internal thread. The first end of the moving shaft is also provided with an external thread, and the second end of the moving shaft passes through the second accommodating cavity and the first through hole in sequence so that the internal thread and the external thread are in contact, and the side wall of the bushing is accommodated in the gap. The second end of the moving shaft passing through the first through hole is also connected to the rotation module, and the rotation module is located in the first space formed between the Hall integrated circuit of the Hall sensor and the permanent magnet of the Hall sensor. The Hall sensor is also connected to the display module.
[0006] The rotating part is rotated to make the internal thread and the external thread match, and the motion shaft moves toward the direction of the rotating module to drive the rotating module to rotate. When the rotating module is in the rotating state, the first part and the second part are respectively located in the first space, so that the display module outputs the first display state or the second display state. The Hall sensor is determined to be in an available state according to the first display state, and the Hall sensor is determined to be in a damaged state according to the second display state, wherein the area of the first part and the second part in the first space is different.
[0007] In this embodiment, the internal thread and the external thread can be matched by rotating the rotating part, thereby causing the motion shaft to move in the direction of the rotation module. By connecting the motion shaft to the rotation module, the movement of the motion shaft can be converted into the rotation of the rotation module. Since the first part and the second part of the rotation module have different areas in the first space, if the Hall sensor is in a usable state, the Hall sensor can output a changing signal for display by the display module. If the Hall sensor is in a damaged state, the display module will display an unchanged signal. In this way, before the Hall sensor is applied to the speed detection of the intelligent driving vehicle, it is possible to detect whether the Hall sensor itself is in a usable state or a damaged state, so as to better control the speed of the intelligent driving vehicle and eliminate safety hazards during vehicle driving.
[0008] In an optional embodiment, the rotation module includes a worm, a worm wheel, and a rotation unit. The worm is connected to the second end of the motion shaft, the worm wheel is engaged with the worm, and the rotation unit is arranged parallel to the worm wheel and connected to the center of the worm wheel.
[0009] The movement shaft moves toward the rotation module to drive the worm to move, the movement of the worm drives the worm wheel to rotate, and the rotation of the worm wheel drives the rotation unit to rotate. When the rotation unit is in a rotating state, the first part and the second part are respectively located in the first space.
[0010] In this embodiment, the rotating unit is arranged parallel to the worm gear and is connected to the center of the worm gear, so that the rotating unit and the worm gear can rotate together. In this way, the movement of the motion axis can be converted into the rotation of the rotating unit, so that the first part and the second part of the rotating unit are respectively located in the first space when the rotating unit is in the rotating state.
[0011] In an optional embodiment, the rotating unit is a gear-shaped blade or a cross-shaped blade.
[0012] In an optional manner, the device further includes a fixed mounting sleeve, which is arranged outside the moving shaft.
[0013] In this embodiment, the fixed mounting sleeve can be used to fix the motion shaft so that the motion shaft can move smoothly in a direction toward the rotation module.
[0014] In an optional manner, the device further includes a connecting piece connected to the side wall of the sleeve, and when the internal thread and the external thread are matched, the connecting piece is accommodated in the gap.
[0015] In this embodiment, the connection piece is provided to prevent the moving shaft from being separated from the sleeve due to the rotating process being too long and exceeding the length of the external thread when the rotating part is rotated.
[0016] In an optional embodiment, the device further includes a connecting bolt, a blind hole is provided on the side of the worm gear close to the motion shaft, a thread matching the connecting bolt is provided in the blind hole, and the head of the connecting bolt is connected to the second end of the motion shaft.
[0017] In one optional embodiment, the display module is a multimeter or an oscilloscope. When the display module is a multimeter, the first display state is when the multimeter reading changes, and the second display state is when the multimeter reading is 0. When the display module is an oscilloscope, the first display state is when the oscilloscope displays a square wave, and the second display state is when the oscilloscope displays a straight line.
[0018] In an optional manner, the device further includes a power module, which is connected to the Hall sensor and is used to supply power to the Hall sensor.
[0019] In an optional manner, the device further includes an operational amplifier circuit, which is connected to the Hall sensor and is used to amplify the output signal of the Hall sensor so that the display module can display it.
[0020] The above description is only an overview of the technical solutions of the embodiments of the present application. In order to more clearly understand the technical means of the embodiments of the present application, they can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiments of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] 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 description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0022] Figure 1 A schematic structural diagram of a device for detecting a Hall sensor provided in some embodiments of the present application.
[0023] Figure 2 A schematic diagram of a partial structure of a device for detecting a Hall sensor provided in some embodiments of the present application Figure 1 .
[0024] Figure 3 Schematic diagram of the structure of the motion shaft and rotating part provided in some embodiments of the present application.
[0025] Figure 4 A schematic structural diagram of a shaft sleeve provided in some embodiments of the present application.
[0026] Figure 5 A schematic diagram of a partial structure of a device for detecting a Hall sensor provided in some embodiments of the present application Figure 2 .
[0027] Figure 6 A schematic diagram of a partial structure of a device for detecting a Hall sensor provided in some embodiments of the present application Figure 3 .
[0028] Figure 7 A "cross"-shaped blade is provided in some embodiments of the present application.
[0029] Figure 8 A schematic structural diagram of another device for detecting a Hall sensor provided in some embodiments of the present application. DETAILED DESCRIPTION
[0030] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.
[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application.
[0032] The terms "comprises", "comprising" and "having" and any variations thereof in the specification, claims and drawings of this application are intended to cover but not exclude other contents. The word "a" or "an" does not exclude the presence of a plurality.
[0033] References to "embodiments" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase "embodiment" in various places in the specification does not necessarily refer to the same embodiment, nor does it necessarily refer to independent or alternative embodiments that are mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.
[0034] In addition, the terms "first", "second", etc. in the description and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order, and may explicitly or implicitly include one or more such features.
[0035] In the description of this application, unless otherwise specified, "plurality" means more than two (including two), and similarly, "multiple groups" means more than two (including two).
[0036] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, "connected" or "connected" in a mechanical structure can refer to a physical connection. For example, a physical connection can be a fixed connection, such as a fixed connection via a fixing member, such as a screw, bolt, or other fixing member. A physical connection can also be a detachable connection, such as a mutual snap-fit connection. A physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. "Connected" or "connected" in a circuit structure can refer not only to a physical connection but also to an electrical connection or a signal connection. For example, it can be a direct connection, i.e., a physical connection, or an indirect connection through at least one intermediate element, as long as the circuit is interconnected. It can also refer to internal communication between two elements. A signal connection can refer to a signal connection through a circuit or a signal connection through a media medium, such as radio waves. Those skilled in the art will understand the specific meanings of the above terms in this application.
[0037] The present application provides a device for detecting a Hall sensor. Figure 1 , Figure 1 A schematic structural diagram of a device for detecting a Hall sensor provided in some embodiments of the present application. Figure 2 A schematic diagram of a partial structure of a device for detecting a Hall sensor provided in some embodiments of the present application Figure 1 . Figure 3 Schematic diagram of the structure of the motion shaft and rotating part provided in some embodiments of the present application. Figure 4 A schematic structural diagram of a shaft sleeve provided in some embodiments of the present application. Figure 5A schematic diagram of a partial structure of a device for detecting a Hall sensor provided in some embodiments of the present application Figure 2 .like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, a device for detecting a Hall sensor includes: a rotating part 01 , a moving shaft 02 , a sleeve 03 , a rotation module 04 and a display module 05 .
[0038] The rotating portion 01 is provided with a first accommodating cavity 011. The first end 021 of the motion shaft 02 is accommodated in the first accommodating cavity 011 and fixed to the rotating portion 01. A gap 012 is left between the first end 021 of the motion shaft 02 and the inner wall of the rotating portion 01. It is understood that the gap 012 is part of the first accommodating cavity 011.
[0039] refer to Figure 4 The sleeve 03 is provided with a second accommodating cavity 031 and a first through hole. The first through hole is provided on the bottom wall 032 of the sleeve. The side wall 033 of the sleeve 03 is provided with an internal thread 034.
[0040] The first end 021 of the moving shaft 02 is further provided with an external thread 022 , and the second end 023 of the moving shaft 02 passes through the second accommodating cavity 031 and the first through hole in sequence so that the internal thread 034 and the external thread 022 are in contact, and the side wall 033 of the sleeve 03 is accommodated in the gap 012 .
[0041] refer to Figure 2 and Figure 5 The second end 023 of the moving shaft 02 passing through the first through hole is also connected to the rotation module 04. The rotation module 04 is located in the first space 07 formed between the Hall integrated circuit 061 of the Hall sensor 06 and the permanent magnet 062 of the Hall sensor 06. The Hall sensor 06 is also connected to the display module 05.
[0042] Rotating portion 01 rotates to mate internal thread 034 with external thread 022, causing motion shaft 02 to move toward rotation module 04, driving rotation module 04. While rotating, rotation module 04 positions its first and second portions within first space 07, respectively, causing display module 05 to output a first or second display state. Hall effect sensor 06 is determined to be operational based on the first display state, and to be damaged based on the second display state. The first and second portions have different areas within first space 07.
[0043] It should be noted that, even if internal thread 034 and external thread 022 are already mated, rotating portion 01 can be rotated to gradually separate internal thread 034 and external thread 022, causing motion shaft 02 to move away from rotation module 04 and drive rotation of rotation module 04. While rotating, rotation module 04's first and second portions are located in first space 07, respectively, causing display module 05 to output the first or second display state. Similarly, Hall effect sensor 06 can be determined to be usable based on the first display state, and to be damaged based on the second display state.
[0044] In practical applications, reference Figure 2 Scales may also be provided on the rotating part 01 and the shaft sleeve 03. By using the scales on the rotating part 01 and the shaft sleeve 03, it is possible to more accurately determine whether the rotating part 01 is rotating and the speed of rotation so that the rotating module 04 can respectively locate the first part and the second part in the first space when in the rotating state, thereby facilitating the display module to output the first display state or the second display state.
[0045] In this embodiment, by rotating the rotating portion 01, the internal thread 034 and the external thread 022 can be matched, thereby causing the motion shaft 02 to move in the direction of the rotation module 04. By connecting the motion shaft 02 to the rotation module 04, the movement of the motion shaft 02 can be converted into the rotation of the rotation module 04. Since the first and second portions of the rotation module 04 have different areas within the first space 07, if the Hall sensor 06 is in a usable state, the Hall sensor 06 can output a changing signal for display by the display module 05. If the Hall sensor 06 is in a damaged state, the display module 05 will display an unchanged signal. In this way, before the Hall sensor 06 is applied to the speed detection of the intelligent driving vehicle, it is possible to detect whether the Hall sensor 06 itself is in a usable state or a damaged state, so as to better control the speed of the intelligent driving vehicle and eliminate safety hazards during vehicle driving.
[0046] In some embodiments, reference Figure 5 The rotation module 04 includes a worm 041, a worm wheel 042, and a rotation unit 043. The worm 041 is connected to the second end 023 of the motion shaft 02, the worm wheel 042 is meshed with the worm 041, and the rotation unit 043 is arranged parallel to the worm wheel 042 and connected to the center of the worm wheel 042.
[0047] The movement axis 02 moves toward the rotation module 04, driving the worm 041 to move. The movement of the worm 041 drives the worm wheel 042 to rotate. The rotation of the worm wheel 042 drives the rotation unit 043 to rotate. When the rotation unit 043 rotates, the first and second parts are respectively located in the first space 07.
[0048] In this embodiment, the rotating unit 043 is arranged parallel to the worm gear 042, and the rotating unit 043 is connected to the center of the worm gear 042, so that the rotating unit 043 and the worm gear 042 can rotate together. In this way, the movement of the motion shaft 02 can be converted into the rotation of the rotating unit 043, so that the first part and the second part of the rotating unit 043 are respectively located in the first space when the rotating unit 043 is in the rotating state.
[0049] In some embodiments, Figure 6 A schematic diagram of a partial structure of a device for detecting a Hall sensor provided in some embodiments of the present application Figure 3 . Figure 7 A "cross" shaped blade is provided in some embodiments of the present application. Figure 6 and Figure 7 The rotating unit 043 can be a gear-shaped blade or a "cross"-shaped blade. Figure 6 and Figure 7 It can be seen that the rotating unit 043 is respectively a first portion 044 and a second portion 045 of a gear-shaped blade or a "cross"-shaped blade.
[0050] In some embodiments, the device may further include a fixed mounting sleeve 08 , which is sleeved on the outside of the moving shaft 02 .
[0051] In this embodiment, the fixed mounting sleeve 08 can be used to fix the motion shaft 02 so that the motion shaft 02 can move smoothly in a direction toward the rotation module 04 .
[0052] In some embodiments, reference Figure 3 and Figure 4 The device may further include a connector 09 , which is connected to the side wall 033 of the sleeve 03 . When the internal thread 034 and the external thread 022 are matched, the connector 09 is accommodated in the gap 012 .
[0053] In this embodiment, the connection member 09 can be provided to prevent the moving shaft 02 from being separated from the sleeve 03 due to the rotation process being too long and exceeding the length of the external thread 022 when the rotating part 01 is rotated.
[0054] In some embodiments, reference Figure 6 A device for detecting a Hall sensor also includes a connecting bolt 10. A blind hole is provided on the side of the worm 041 close to the moving shaft 02. A thread matching the connecting bolt 10 is provided in the blind hole. The head of the connecting bolt 10 is connected to the second end 023 of the moving shaft 02. For example, the connection method between the head of the connecting bolt 10 and the second end 023 of the moving shaft 02 can be welding.
[0055] In some embodiments, the display module 05 is a multimeter or an oscilloscope. When the display module 05 is a multimeter, the first display state is when the multimeter reading changes, and the second display state is when the multimeter reading is 0. When the display module is an oscilloscope, the first display state is when the oscilloscope displays a square wave, and the second display state is when the oscilloscope displays a straight line.
[0056] Specifically, when the display module 05 is a multimeter, the first display state is when the multimeter's reading changes, meaning that the first portion and the second portion of the rotating module 04 are respectively located in the first space during rotation. For example, the first display state may change from displaying 5 volts to displaying 0 volts, and then from displaying 0 volts to displaying 5 volts. The displayed values are merely examples and are not intended to be limiting.
[0057] It is worth noting that, when the display module 05 is an oscilloscope, the square wave displayed in the first display state may be a square wave with a rising edge or a falling edge.
[0058] In some embodiments, a device for detecting a Hall sensor further includes a power module 11 , which is connected to the Hall sensor 06 and is used to supply power to the Hall sensor 06 .
[0059] In some embodiments, a device for detecting a Hall sensor further includes an operational amplifier circuit 12 , which is connected to the Hall sensor 06 and configured to amplify an output signal of the Hall sensor 06 for display on the display module 05 .
[0060] In practical applications, the operational amplifier circuit 12 can be a circuit composed of an amplifier and a resistor. Those skilled in the art can build the operational amplifier circuit 12 according to actual needs. This application does not impose any restrictions on this. It only requires that the operational amplifier circuit can be used to amplify the output signal of the Hall sensor.
[0061] In some embodiments, Figure 8 This is a schematic diagram of another device for detecting a Hall sensor provided in some embodiments of the present application. Figure 8 The power module 11 can also be connected to the operational amplifier circuit 12 to provide power to the operational amplifier circuit 12. The power module 11 can also be placed in the main chassis 13 together with the display module 05. The power module 11 can provide a voltage of ±2 volts to ±10 volts. Specifically, the power module 11 can provide a voltage of approximately 8 volts to the Hall sensor 06, and the power module 11 can provide a voltage of approximately 6 volts to the operational amplifier circuit 12.
[0062] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments, combinations of features from different embodiments are intended to be within the scope of this application and to form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.
[0063] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. A device for detecting a Hall sensor, characterized in that: The device comprises: Rotating part, moving shaft, bushing, rotating module and display module, wherein, The rotating part is provided with a first accommodating cavity, the first end of the motion shaft is accommodated in the first accommodating cavity and fixed to the rotating part, and a gap is left between the first end of the motion shaft and the inner wall of the rotating part; The sleeve is provided with a second accommodating cavity and a first through hole, the first through hole is provided on the bottom wall of the sleeve, and the side wall of the sleeve is provided with an internal thread; The first end of the motion shaft is further provided with an external thread, and the second end of the motion shaft passes through the second accommodating cavity and the first through hole in sequence so that the internal thread and the external thread are in contact, and the side wall of the sleeve is accommodated in the gap; The second end of the motion shaft passing through the first through hole is further connected to the rotation module. The rotation module is located in a first space formed between the Hall integrated circuit of the Hall sensor and the permanent magnet of the Hall sensor. The Hall sensor is also connected to the display module. The rotating portion is rotated to make the internal thread and the external thread cooperate, and the motion shaft moves toward the direction of the rotation module to drive the rotation module to rotate. When the rotation module is in the rotated state, the first part and the second part are respectively located in the first space so that the display module outputs a first display state or a second display state. The Hall sensor is determined to be in an available state according to the first display state, and the Hall sensor is determined to be in a damaged state according to the second display state, wherein the first part and the second part have different areas in the first space.
2. The device according to claim 1, characterized in that The rotation module includes a worm, a worm wheel and a rotation unit, wherein the worm is connected to the second end of the motion shaft, the worm wheel is engaged with the worm, and the rotation unit is arranged parallel to the worm wheel and connected to the center of the worm wheel; The movement shaft moves toward the rotation module to drive the worm to move, the movement of the worm drives the worm wheel to rotate, and the rotation of the worm wheel drives the rotation unit to rotate. When the rotation unit is in a rotating state, the first part and the second part are respectively located in the first space.
3. The device according to claim 2, characterized in that The rotating unit is a gear-shaped blade or a "cross"-shaped blade.
4. The device according to claim 1, characterized in that The device further comprises a fixed installation sleeve, which is arranged outside the motion shaft.
5. The device according to claim 1, characterized in that The device further includes a connecting piece connected to the side wall of the sleeve, and when the internal thread and the external thread are matched, the connecting piece is accommodated in the gap.
6. The device according to claim 2, characterized in that The device also includes a connecting bolt. A blind hole is provided on one side of the worm gear close to the motion shaft. A thread matching the connecting bolt is provided in the blind hole. The head of the connecting bolt is connected to the second end of the motion shaft.
7. The device according to claim 1, characterized in that The display module is a multimeter or an oscilloscope. When the display module is the multimeter, the first display state is that the reading of the multimeter changes, and the second display state is that the reading of the multimeter is 0; when the display module is the oscilloscope, the first display state is that the oscilloscope displays a square wave, and the second display state is that the oscilloscope displays a straight line.
8. The device according to claim 1, characterized in that The device further includes a power supply module, which is connected to the Hall sensor and is used to supply power to the Hall sensor.
9. The device according to claim 1, characterized in that The device further includes an operational amplifier circuit, which is connected to the Hall sensor and is used to amplify the output signal of the Hall sensor so that the display module can display it.