Stably-installed miniature Hall sensor

Abstract

The utility model discloses a stably installed miniature Hall sensor, comprising a sensor body, a mounting plate fixedly installed on the outer surface of the upper end of the sensor body, and a cable, the cable is fixedly connected with the upper end of the sensor body, the cable penetrates through the upper surface of the mounting plate, the mounting plate is connected with a stable mounting structure, and the stable mounting structure is connected with the sensor body. The stable mounting structure can enable the pressing ring to push the pressing plate to fix the bolt again while the bolt is mounted, the stable mounting structure comprises the bolt, the bolt penetrates through the upper surface of the mounting plate in a threaded mode, and a groove is formed in the upper surface of the mounting plate. The stably-installed miniature Hall sensor is provided with a stable installation structure, the upper end of a bolt can press a pressing rod while the bolt is installed, a first rotating rod pushes the pressing plate and clamps the bolt, and the stably-installed miniature Hall sensor is further provided with a guide structure, a cable can be guided by adjusting a limiting block, and bending is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile speed measurement, in particular to a stably installed micro Hall sensor. Background Art

[0002] Hall sensors usually consist of a piece of conductive material that generates an electric field perpendicular to the direction of the current when current passes through it. When this conductive material passes through a magnetic field, the magnetic field affects the electric field, resulting in a voltage difference on one side of the conductive material. The magnitude of this voltage difference is proportional to the strength of the magnetic field and the magnitude of the current. By measuring this voltage difference, the strength of the magnetic field can be determined, thereby achieving the measurement of the position of an object or the change in the magnetic field. In automobiles, Hall sensors are often used to measure the rotation speed of the wheels to calculate the speed of the vehicle.

[0003] One or more magnets are usually installed on the wheels of a vehicle. These magnets rotate with the rotation of the wheels. The Hall sensor is installed in a fixed position so that the magnets on the wheel can pass through the sensor. When the wheel rotates, the rotation of the magnet will cause a change in the magnetic field, and this change will be detected by the sensor. The Hall sensor is usually fixed with a threaded connection when installed, but during use, the threads can easily loosen as the car is bumpy. The offset of the Hall sensor position will make the speed measurement inaccurate. Utility Model Content

[0004] The utility model aims to provide a stably mounted micro Hall sensor to solve the problem in the above background technology that the screw thread is easily loosened due to the bumps of the car during driving.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a stably mounted micro Hall sensor, comprising a sensor body, a mounting plate fixedly mounted on the upper outer surface of the sensor body, and a cable, the cable is fixedly connected to the upper end of the sensor body, and the cable passes through the upper surface of the mounting plate, the mounting plate is connected to a stable mounting structure, and the stable mounting structure can enable the pressure ring to push the pressure plate to fix the bolt again while the bolt is installed.

[0006] Preferably, the stable mounting structure includes a bolt, the bolt thread passes through the upper surface of the mounting plate, the upper surface of the mounting plate is provided with a groove, the groove corresponds to the bolt, a pressure ring is slidably installed on the upper surface of the groove of the mounting plate, and the lower end of the pressure ring is rotatably connected with a rotating rod 1, the lower end of the rotating rod 1 is rotatably installed on the side surface of the pressure plate, and the side surface of the pressure plate is rotatably connected with the upper end of the rotating rod 2, the lower end of the rotating rod 2 is rotatably installed on the bottom surface of the inner wall of the mounting plate, the upper and lower ends of the pressure plate are respectively slidably connected to the upper and lower surfaces of the bottom of the inner wall of the mounting plate, the side surface of the pressure plate is connected with a spring 1, and the spring 1 is fixedly connected to the inner wall slide groove of the mounting plate.

[0007] By adopting the above technical solution, the bolts are fixed by the pressure plate to avoid deviation.

[0008] Preferably, a tooth block is provided on the other side surface of the mounting plate.

[0009] The bolts are clamped by adopting the above technical solution.

[0010] Preferably, a guide structure is installed on the upper surface of the mounting plate, and the guide structure can guide and protect the cables by adjusting the limit blocks.

[0011] The above technical solution is adopted to avoid cable deflection.

[0012] Preferably, the guide structure includes a fixed block, the lower end of the fixed block is connected to a semicircular ring, both ends of the semicircular ring are slidably penetrated by an extension plate, one end of the extension plate is connected to spring 2, the other end of the spring 2 is fixedly installed on the inner wall surface of the semicircular ring at the lower end of the fixed block, the other end of the extension plate is fixedly connected to a sliding block, the lower surface of the sliding block is slidably connected to the upper surface of the mounting plate, the upper ends of the fixed block and the sliding block are both threadedly connected to a spiral rod, and the upper surface of the spiral rod is rotatably connected to a limiting block.

[0013] By adopting the above technical solution, the end of the cable is guided to avoid bending.

[0014] Preferably, a semicircular ring is provided at the upper end of the limit block corresponding to the cable.

[0015] The above technical solution is adopted to facilitate clamping of cables.

[0016] Preferably, three bolts are threaded through the upper surface of the mounting plate.

[0017] By adopting the above technical solution, the installation of the mounting plate is made more stable.

[0018] Compared with the prior art, the utility model has the following beneficial effects: the stably mounted micro Hall sensor:

[0019] 1. The stably mounted micro Hall sensor is provided with a stable mounting structure. During installation, the bolt is threadedly fixed to the connection. At the same time, the upper end of the bolt will press the pressure ring of the groove on the upper surface of the mounting plate, so that the pressure ring presses the rotating rod 1 downward, so that the rotating rod 1 rotates, and at the same time, the rotating rod 2 rotates;

[0020] 2. Furthermore, the rotating rod 1 and the rotating rod 2 simultaneously make the pressure plate slide, so that the pressure plate stretches the spring 1, and a tooth block is provided on the side surface of the pressure plate, which will contact the threaded outer surface of the bolt, so that the pressure plate clamps the bolt, which can prevent the bolt from loosening and prevent the sensor body from deviating;

[0021] 3. Furthermore, a guiding structure is provided so that the cable is located between two limit blocks. The height of the limit blocks can be adjusted by rotating the spiral rod. The limit blocks can prevent the ends of the cable from bending during use, which would affect the service life of the sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the shaft side surface structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the fixing block of the utility model when viewed from above;

[0024] Figure 3 This is a schematic diagram of the front cross-section structure of the utility model;

[0025] Figure 4 It is a schematic diagram of the partial cross-sectional structure of the pressure ring of the utility model.

[0026] In the figure: 1. sensor body; 2. mounting plate; 3. cable; 4. bolt; 5. pressure ring; 6. rotating rod 1; 7. rotating rod 2; 8. pressure plate; 9. spring 1; 10. sliding block; 11. extension plate; 12. spring 2; 13. fixing block; 14. screw rod; 15. limit block. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-4The utility model provides a technical solution: a stably installed micro Hall sensor, including a sensor body 1, a mounting plate 2, a cable 3, a bolt 4, a pressure ring 5, a rotating rod 1 6, a rotating rod 2 7, a pressure plate 8, a spring 1 9, a sliding block 10, an extension plate 11, a spring 2 12, a fixing block 13, a spiral rod 14, and a limit block 15.

[0029] Example 1

[0030] The micro Hall sensor is provided with a stable mounting structure, and the pressure plate 8 clamps the bolt 4 through the pressure ring 5 to prevent the bolt 4 from loosening, specifically:

[0031] The upper outer surface of the sensor body 1 is fixedly mounted with a mounting plate 2, and also includes a cable 3, the cable 3 is fixedly connected to the upper end of the sensor body 1, and the cable 3 passes through the upper surface of the mounting plate 2, the mounting plate 2 is connected with a stable mounting structure, the stable mounting structure can make the pressure ring 5 push the pressure plate 8 to fix the bolt 4 again while the bolt 4 is installed, the stable mounting structure includes a bolt 4, the bolt 4 thread passes through the upper surface of the mounting plate 2, the upper surface of the mounting plate 2 is provided with a groove, the groove corresponds to the bolt 4, the groove upper surface of the mounting plate 2 A pressing ring 5 is installed through the sliding, and the lower end of the pressing ring 5 is rotatably connected with a rotating rod 6, the lower end of the rotating rod 6 is rotatably installed on the side surface of the pressing plate 8, and the side surface of the pressing plate 8 is rotatably connected with the upper end of the rotating rod 2 7, the lower end of the rotating rod 2 7 is rotatably installed on the bottom surface of the inner wall of the mounting plate 2, the upper and lower ends of the pressing plate 8 are respectively slidably connected with the upper and lower surfaces of the bottom of the inner wall of the mounting plate 2, the side surface of the pressing plate 8 is connected with a spring 9, and the spring 9 is fixedly connected with the inner wall slide groove of the mounting plate 2, and the other side surface of the mounting plate 2 is provided with a tooth block;

[0032] When the micro Hall sensor is used, Figure 1 As shown, firstly, the bolts 4 connected with the threaded grooves on the upper surface of the mounting plate 2 are rotated in sequence, so that the bolts 4 threadably connect the mounting plate with the speed measuring part of the vehicle. At this time, while the bolts 4 are rotated downward, as shown in FIG. Figure 4As shown, the upper end of the bolt 4 will press the pressing ring 5 downward, so that the sliding pressing block connected to the lower surface of the pressing ring 5 moves downward. Since one end of the rotating rod 16 is connected to the lower end of the pressing ring 5 and the other end is connected to the pressing plate 8, the rotating rod 16 will rotate to push the pressing plate 8 in the direction of the bolt 4, and the rotating rod 27 will rotate at the same time. One end of the rotating rod 27 is connected to the bottom surface of the mounting plate 2. The rotating rod 16 and the rotating rod 27 push the pressing plate 8 at the same time, which can prevent the pressing plate 8 from moving in the wrong direction. At the same time, the upper and lower ends of the pressing plate 8 slide on the inner wall surface of the mounting plate 2, and the spring 19 is pulled. There are tooth blocks on the side surface of the pressing plate 8, so the tooth blocks of the two pressing plates 8 will engage with the threads on the outer surface of the bolt 4, making the installation of the bolt 4 more stable and preventing the bolt 4 from loosening. The sensor body 1 is more stable and the accuracy of speed measurement is improved.

[0033] Example 2

[0034] The micro Hall sensor is provided with a guide structure, which can limit the cable 3 by adjusting the limit block 15 to avoid bending, specifically:

[0035] A guide structure is installed on the upper surface of the mounting plate 2, and the guide structure can guide and protect the cable 3 by adjusting the limit block 15. The guide structure includes a fixed block 13, and a semicircular ring is connected to the lower end of the fixed block 13. The two ends of the semicircular ring are slidably penetrated by an extension plate 11, and one end of the extension plate 11 is connected to a spring 2 12, and the other end of the spring 2 12 is fixedly installed on the inner wall surface of the semicircular ring at the lower end of the fixed block 13. The other end of the extension plate 11 is fixedly connected to a sliding block 10, and the lower surface of the sliding block 10 is slidably connected to the upper surface of the mounting plate 2. The upper ends of the fixed block 13 and the sliding block 10 are both threadedly connected with a spiral rod 14, and the upper surface of the spiral rod 14 is rotatably connected to the limit block 15. The upper end of the limit block 15 is provided with a semicircular ring corresponding to the cable 3, and the upper surface of the mounting plate 2 is threadedly penetrated by three bolts 4;

[0036] When the sensor body 1 is installed through the mounting plate 2, the cable 3 of the sensor body 1 will need to be extended and connected. The connecting end of the cable 3 and the sensor body 1 is easy to bend, causing damage to the internal wires and affecting the speed measurement. Therefore, the cable 3 is located between the two limit blocks 15 to guide the extension direction of the cable. When the spiral rod 14 is rotated, since the spiral rod 14 and the limit block 15 are rotatably connected, the spiral rod 14 will drive the limit block 15 to adjust the height. The two limit blocks 15 can adjust different heights according to needs to protect and guide the cable 3. Then the sliding block 10 slides with the fixed block 13 through the extension plate 11. The extension plate 11 slides with the fixed block 13 through the spring 2 12, which will drive the limit block 15 to move, so that the width between the two limit blocks 15 can be adjusted, so that the guiding direction of the cable 3 is flexible while avoiding bending.

[0037] Working principle: When using the stably mounted micro Hall sensor, a stable mounting structure is provided, which enables the rotating rod 6 to push the pressure plate 8 to engage and fix the bolt 4 while the bolt 4 is installed. The guide structure can guide the cable 3 while avoiding bending by adjusting the limit block 15, thereby increasing the overall practicality.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stably mounted micro Hall sensor, comprising a sensor body (1), a mounting plate (2) being fixedly mounted on the upper outer surface of the sensor body (1), characterized in that: It also includes a cable (3), which is fixedly connected to the upper end of the sensor body (1), and the cable (3) passes through the upper surface of the mounting plate (2), and the mounting plate (2) is connected to a stable mounting structure, and the stable mounting structure can enable the pressure ring (5) to push the pressure plate (8) to fix the bolt (4) again while the bolt (4) is installed.

2. A stably mounted micro Hall sensor according to claim 1, characterized in that: The stable mounting structure comprises a bolt (4), wherein the bolt (4) is threadedly penetrated through the upper surface of the mounting plate (2), and the upper surface of the mounting plate (2) is provided with a groove, which corresponds to the bolt (4). A pressure ring (5) is slidably penetrated and installed on the upper surface of the groove of the mounting plate (2), and the lower end of the pressure ring (5) is rotatably connected to a rotating rod one (6), and the lower end of the rotating rod one (6) is rotatably mounted on the side surface of a pressure plate (8), and the side surface of the pressure plate (8) is rotatably connected to the upper end of a rotating rod two (7), and the lower end of the rotating rod two (7) is rotatably mounted on the inner wall bottom surface of the mounting plate (2), and the upper and lower ends of the pressure plate (8) are respectively slidably connected to the upper and lower surfaces of the inner wall bottom of the mounting plate (2), and the side surface of the pressure plate (8) is connected to a spring one (9), and the spring one (9) is fixedly connected to the inner wall sliding groove of the mounting plate (2).

3. A stably mounted micro Hall sensor according to claim 2, characterized in that: The other side surface of the mounting plate (2) is provided with a tooth block.

4. A stably mounted micro Hall sensor according to claim 2, characterized in that: A guide structure is installed on the upper surface of the installation plate (2), and the guide structure can guide and protect the cable (3) by adjusting the limit block (15).

5. A stably mounted micro Hall sensor according to claim 4, characterized in that: The guide structure comprises a fixed block (13), the lower end of the fixed block (13) is connected to a semicircular ring, both ends of the semicircular ring are slidably penetrated by an extension plate (11), one end of the extension plate (11) is connected to a second spring (12), the other end of the second spring (12) is fixedly mounted on the inner wall surface of the semicircular ring at the lower end of the fixed block (13), the other end of the extension plate (11) is fixedly connected to a sliding block (10), the lower surface of the sliding block (10) is slidably connected to the upper surface of the mounting plate (2), the upper ends of the fixed block (13) and the sliding block (10) are both threadedly connected to a spiral rod (14), and the upper surface of the spiral rod (14) is rotatably connected to a limit block (15).

6. A stably mounted micro Hall sensor according to claim 5, characterized in that: The upper end of the limit block (15) is provided with a semicircular ring corresponding to the cable (3).

7. A stably mounted micro Hall sensor according to claim 2, characterized in that: Three bolts (4) are threadedly passed through the upper surface of the mounting plate (2).

Images