Novel Hall sensor

Abstract

The utility model discloses a novel Hall sensor, which relates to the technical field of Hall sensors and comprises a protective shell, a side plate is rotatably connected to one end of the protective shell, connecting blocks are symmetrically and fixedly connected to two ends, close to the side plate, of the protective shell, fixing assemblies are mounted in the connecting blocks, and a Hall sensor body is in threaded connection with the bottom end in the protective shell. Pins are symmetrically installed at one end of the Hall sensor body, baffles are slidably connected to the outer sides of the pins, telescopic assemblies are installed between the baffles and the Hall sensor body, a top cover is movably connected to the upper end of the protective shell, a damping plate is arranged at the bottom end of the top cover, and damping assemblies are installed between the damping plate and the bottom end of the top cover. By the adoption of the structure, physical impact and abrasion can be resisted, the replacement frequency caused by damage is reduced, the risk that the pins are bent, broken or damaged due to misoperation in the installation process is reduced, and meanwhile the influence of external vibration on the Hall sensor in the protective shell can be effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to hall sensor technical field, especially relate to a novel hall sensor. BACKGROUND

[0002] A hall sensor is a magnetic field sensor based on the Hall effect principle. It uses the Hall effect to detect changes in the magnetic field and converts these changes into an electrical signal output. Specifically, when the hall sensor is in the magnetic field, the electrified semiconductor sheet will generate a potential difference in the direction perpendicular to the current and the magnetic field under the action of the magnetic field, and this potential difference is proportional to the magnetic field strength. By measuring this potential difference, we can know the size and direction of the magnetic field. Hall sensors have many advantages, such as high sensitivity, small size, low power consumption, strong environmental adaptability, high reliability, etc. Therefore, it is widely used in industrial control, automotive applications, consumer electronics and medical applications, etc.

[0003] The utility model discloses a moistureproof hall sensor, including the mounting plate, the mounting plate top is equipped with the protective housing, the protective housing inner chamber is equipped with the hall sensor body, the hall sensor body right side is equipped with the pin, the protective housing inner chamber right side is equipped with the sealing plate, the protective housing right -hand member is equipped with the fixed plate, the first through -hole is seted up on the sealing plate, the second through -hole is seted up on the fixed plate, the protective housing left side is equipped with the sealing cover, the sealing cover right side is connected with the clamping plate through the extrusion spring, the clamping plate is located the protective housing left end, the protective housing inner wall is equipped with the guide strip, the hall sensor body both sides are equipped with the guide groove, the guide groove with guide strip sliding connection, the installation of hall sensor is convenient, makes the sealing cover connection to be sealed at the pin threading, avoids the moisture to enter the protective housing in the pin place, improves the moisture -proof ability to the hall sensor body.

[0004] The utility model discloses a moistureproof hall sensor, including the mounting plate, the mounting plate top is equipped with the protective housing, the protective housing inner chamber is equipped with the hall sensor body, the hall sensor body right side is equipped with the pin, the protective housing inner chamber right side is equipped with the sealing plate, the protective housing right -hand member is equipped with the fixed plate, the first through -hole is seted up on the sealing plate, the second through -hole is seted up on the fixed plate, the protective housing left side is equipped with the sealing cover, the sealing cover right side is connected with the clamping plate through the extrusion spring, the clamping plate is located the protective housing left end, the protective housing inner wall is equipped with the guide strip, the hall sensor body both sides are equipped with the guide groove, the guide groove with guide strip sliding connection, the installation of hall sensor is convenient, makes the sealing cover connection to be sealed at the pin threading, avoids the moisture to enter the protective housing in the pin place, improves the moisture -proof ability to the hall sensor body. Utility model content

[0005] In view of the problems mentioned in the background art, the utility model aims at providing a novel hall sensor to solve the problems that the sensor will be displaced or vibrated in the use process when the hall sensor body is fixed by clamping, thereby affecting the measurement accuracy and stability, and the rotation of the sealing cover will generate torsional force on the extrusion spring, thereby causing the extrusion spring to be twisted and deformed, the stress distribution inside the extrusion spring will change, and the spring force of the spring will be uneven or decreased.

[0006] The above technical purpose of the utility model is realized by the following technical scheme:

[0007] A novel hall sensor, comprising a protective shell, the protective shell is symmetrically provided with mounting plates at both ends, the mounting plates are provided with mounting holes at the upper ends, one end of the protective shell is rotatably connected with a side plate, one end of the side plate is provided with a through slot, both ends of the protective shell close to the side plate are symmetrically fixedly connected with connecting blocks, the connecting blocks are internally provided with fixing assemblies, the inside bottom of the protective shell is threadedly connected with a hall sensor body, one end of the hall sensor body is symmetrically provided with pins, the other end of the pins extends out of the side end of the side plate through the through slot, the outer side of the pins is slidably connected with a baffle, the baffle and the hall sensor body are provided with telescopic assemblies, the upper end of the protective shell is movably connected with a top cover, the bottom of the top cover is provided with a shock-absorbing plate, the shock-absorbing plate and the bottom of the top cover are provided with shock-absorbing assemblies, and the inside chamfered portions of the protective shell are symmetrically fixedly connected with supporting columns.

[0008] The fixing assembly comprises a cavity, a first reset spring, a moving plate, a pressing block and a clamping block, the connecting block is internally provided with a cavity, one end of the cavity is symmetrically fixedly connected with a first reset spring, the other end of the first reset spring is fixedly connected with a moving plate, the moving plate and the cavity are slidably connected, the end of the moving plate away from the first reset spring is fixedly connected with a pressing block and a clamping block, respectively, the end of the pressing block away from the moving plate extends out of the side end of the protective shell, the end of the clamping block away from the moving plate extends out of the side end of the connecting block, one end of the side plate close to the protective shell is symmetrically provided with a connecting slot, the connecting slot is inserted with the connecting block, one end of the connecting slot is provided with a clamping hole, and the clamping hole is clamped with the clamping block, so that the physical impact and abrasion can be resisted, the frequency of replacement due to damage is reduced, and the risk of pin bending, breaking or damage caused by improper operation in the installation process is reduced.

[0009] As a preferred technical scheme, the telescopic assembly comprises a mounting seat, a telescopic column and a second reset spring, the opposite ends of the baffle and the hall sensor body are symmetrically fixedly connected with mounting seats, the opposite ends of the mounting seats are provided with telescopic columns, the opposite ends of the telescopic columns are fixedly connected with the opposite ends of the mounting seats, respectively, the outer side of the telescopic column is sleeved with a second reset spring, and the opposite ends of the second reset spring are fixedly connected with the opposite ends of the mounting seat, respectively, so that the corrosive gas, liquid or solid particles can be effectively prevented from entering the inside of the protective shell, thereby avoiding damage to the hall sensor inside the protective shell.

[0010] As a preferred technical solution, the mobile groove is symmetrically arranged at both ends of the protective shell, the mobile block is symmetrically and fixedly connected to one end of the mounting plate close to the protective shell, the mobile block is in sliding connection with the mobile groove, the limiting block is symmetrically and fixedly connected to both ends of the mobile block, the limiting groove is symmetrically arranged in the mobile groove, and the limiting groove is in sliding connection with the limiting block.

[0011] As a preferred technical solution, the fixed groove is arranged at the upper end of the supporting column, the fixed column is symmetrically and fixedly connected to the bottom end of the top cover close to the chamfer, the fixed column is in plug connection with the fixed groove, the threaded hole is symmetrically arranged at the upper end of the top cover close to the chamfer, the threaded hole penetrates the fixed column, the threaded hole is arranged at the bottom end of the fixed groove, and the fixed bolt is in threaded connection with the threaded hole.

[0012] As a preferred technical solution, the damping assembly comprises a damping seat, a first limiting column, a second limiting column, an embedded hole and a first damping spring, the damping seat is symmetrically and fixedly connected to the upper end of the damping plate close to the chamfer and the bottom end of the top cover, the first limiting column is fixedly connected to the upper end of the damping seat, the embedded hole is arranged at the upper end of the first limiting column, the first damping spring is fixedly connected to the bottom end of the embedded hole, the second limiting column is fixedly connected to the other end of the first damping spring, the second limiting column is in sliding connection with the embedded hole, the other end of the second limiting column is fixedly connected to the bottom end of the damping seat fixedly connected to the bottom end of the top cover, the second damping spring is sleeved outside the first limiting column and the second limiting column, the opposite ends of the second damping spring are fixedly connected to the damping seat, and the damping pad is glued to the bottom end of the damping plate.

[0013] In summary, the utility model mainly has the following beneficial effects:

[0014] First, in the utility model, after the thread connection of the hall sensor body and the bottom end inside the protective shell, press the press block, make the press block drive the moving plate and the clamping block to move, the moving plate is pressed to the first reset spring, the first reset spring is compressed, and the clamping block is retracted inside the cavity, then the side plate is combined with the protective shell, the connecting block is inserted into the connecting groove, the press block is loosened, the first reset spring resets, the moving plate rebounds and drives the clamping block to pop out, the clamping block is clamped and fixed with the clamping hole, then the top cover is connected with the protective shell, the assembly of the hall sensor body and the protective shell is completed, the physical impact and wear can be resisted, the frequency of replacement due to damage is reduced, and the risk of pin bending, breaking or damage caused by improper operation during installation is reduced;

[0015] Second, in the utility model, when the top shell and the protective shell are combined at the upper end, the protective pad at the bottom end of the damping plate is attached to the upper end of the hall sensor body, the second limiting column is pushed upward and slides inside the built-in hole, the second limiting column is pressed to the first damping spring, the first damping spring and the second damping spring are compressed at the same time, so that the bottom end of the protective pad and the upper end of the hall sensor body always remain attached, which can effectively reduce the influence of external vibration on the hall sensor inside the protective shell, ensure the stability of the hall sensor in the working environment, protect the precision components inside the hall sensor from damage, prolong the service life of the hall sensor, reduce the failure rate caused by vibration, and help the hall sensor to maintain better working state. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0017] Figure 2 It is the three-dimensional structure schematic diagram of the top cover of the utility model;

[0018] Figure 3 It is the three-dimensional structure schematic diagram of the damping assembly of the utility model;

[0019] Figure 4 It is the three-dimensional structure schematic diagram of the protective shell of the utility model;

[0020] Figure 5 It is the three-dimensional structure schematic diagram of the Figure 4 The enlarged view of A of the utility model;

[0021] Figure 6 It is the three-dimensional structure schematic diagram of the fixed assembly of the utility model;

[0022] Figure 7 It is the three-dimensional structure schematic diagram of the mounting plate of the utility model;

[0023] Figure 8It is the mobile groove three-dimensional structure schematic view of the utility model.

[0024] The reference signs: 1, protective shell; 2, mounting plate; 3, mounting hole; 4, moving block; 5, mobile groove; 6, side plate; 7, hall sensor body; 8, pin; 9, connecting groove; 10, fixed assembly; 101, cavity; 102, first reset spring; 103, moving plate; 104, press block; 105, clamping block; 11, clamping hole; 12, positioning hole; 13, top cover; 14, positioning column; 15, support column; 16, fixed column; 17, fixed groove; 18, screw hole; 19, fixed bolt; 20, damping assembly; 201, damping seat; 202, first limiting column; 203, second limiting column; 204, built-in hole; 205, first damping spring; 21, damping plate; 22, damping pad; 23, second damping spring; 24, through groove; 25, baffle; 26, telescopic assembly; 261, mounting seat; 262, telescopic column; 263, second reset spring; 27, limiting block; 28, limiting groove; 29, connecting block. DETAILED DESCRIPTION

[0025] EMBODIMENT

[0026] REFERENCE Figures 1 to 8 The novel hall sensor includes a protective shell 1, mounting plates 2 are symmetrically installed at both ends of the protective shell 1, mounting holes 3 are formed in the upper ends of the mounting plates 2, side plates 6 are rotationally connected to one end of the protective shell 1, through grooves 24 are formed in one end of the side plates 6, connecting blocks 29 are fixedly connected to both ends of the protective shell 1 close to the side plates 6, fixed assemblies 10 are installed in the connecting blocks 29, hall sensor bodies 7 are screw-connected to the bottom inside of the protective shell 1, pins 8 are symmetrically installed at one end of the hall sensor bodies 7, the other ends of the pins 8 extend out of the side ends of the side plates 6 through the through grooves 24, baffles 25 are slidingly connected to the outer sides of the pins 8, telescopic assemblies 26 are installed between the baffles 25 and the hall sensor bodies 7, top covers 13 are movably connected to the upper ends of the protective shell 1, damping plates 21 are arranged at the bottom ends of the top covers 13, damping assemblies 20 are installed between the damping plates 21 and the bottom ends of the top covers 13, support columns 15 are fixedly connected to the inside chamfered portions of the protective shell 1;

[0027] The fixed assembly 10 comprises a cavity 101, a first reset spring 102, a moving plate 103, a press block 104 and a clamping block 105, the inside of the connecting block 29 is provided with the cavity 101, the inside of the cavity 101 is symmetrically and fixedly connected with the first reset spring 102 at one end, the other end of the first reset spring 102 is fixedly connected with the moving plate 103, the moving plate 103 is in sliding connection with the cavity 101, the moving plate 103 is fixedly connected with the press block 104 and the clamping block 105 at the end away from the first reset spring 102, the end of the press block 104 away from the moving plate 103 extends out of the side end of the protective shell 1, the end of the clamping block 105 away from the moving plate 103 extends out of the side end of the connecting block 29, the side plate 6 is symmetrically provided with the connecting slot 9 at the end close to the protective shell 1, the connecting slot 9 is in plug connection with the connecting block 29, the inside of the connecting slot 9 is provided with the clamping hole 11 at one end, the clamping hole 11 is in clamping connection with the clamping block 105, after the Hall sensor body 7 is in screw connection with the inside bottom end of the protective shell 1, the press block 104 is pressed, the moving plate 103 and the clamping block 105 are driven to move, the moving plate 103 is pressed to the first reset spring 102, the first reset spring 102 is compressed, at the same time, the clamping block 105 is retracted into the inside of the cavity 101, then the side plate 6 is combined with the protective shell 1, the connecting block 29 is inserted into the inside of the connecting slot 9, at the same time, the press block 104 is loosened, the first reset spring 102 is reset, the moving plate 103 rebounds to drive the clamping block 105 to pop out, the clamping block 105 is in clamping connection with the clamping hole 11, then the top cover 13 is connected with the protective shell 1, the assembly of the Hall sensor body 7 and the protective shell 1 is completed.

[0028] Reference Figure 5, telescopic assembly 26 includes mounting seat 261, telescopic column 262 and second reset spring 263, baffle 25 and the opposite end of Hall sensor body 7 are symmetrically fixedly connected with mounting seat 261, the opposite end of mounting seat 261 is equipped with telescopic column 262, the first and last ends of telescopic column 262 are fixedly connected with the opposite end of mounting seat 261 respectively, second reset spring 263 is sleeved on the outer side of telescopic column 262, the first and last ends of second reset spring 263 are fixedly connected with the opposite end of mounting seat 261 respectively, a circle of sealing pads is fixedly connected on the outer side of baffle 25, baffle 25 and through slot 24 are inserted, top cover 13 is detached from the upper end of protective shell 1, then baffle 25 is pushed, baffle 25 is pressed towards telescopic column 262 and second reset spring 263, second reset spring 263 is compressed, baffle 25 slides on the outer side of pin 8, baffle 25 is slid into protective shell 1, then press block 104 is pressed, press block 104 drives moving plate 103 and clamping block 105 to move, moving plate 103 is pressed towards first reset spring 102, first reset spring 102 is compressed, clamping block 105 is retracted into cavity 101, clamping block 105 and clamping hole 11 end clamping, then side plate 6 is pulled, side plate 6 is opened, connecting block 29 and connecting groove 9 end insertion, finally, Hall sensor body 7 and the bottom end inside protective shell 1 end threaded connection, the disassembly of Hall sensor body 7 and protective shell 1 is completed.

[0029] Reference Figures 7 to 8 , the opposite end of protective shell 1 is symmetrically provided with moving slot 5, moving block 4 is symmetrically fixedly connected with the end of mounting plate 2 close to protective shell 1, moving block 4 and moving slot 5 are slidably connected, limit block 27 is symmetrically fixedly connected with the two ends of moving block 4, limit slot 28 is symmetrically provided in moving slot 5, limit slot 28 and limit block 27 are slidably connected, according to the position of the hole reserved on the mounting surface, mounting plate 2 is pulled to the two sides, moving block 4 is slid in moving slot 5, limit block 27 is slid in limit slot 28, when mounting hole 3 provided on mounting plate 2 is aligned with the hole reserved on the mounting surface, protective shell 1 is installed on the mounting surface through bolt, the installation of protective shell 1 is completed.

[0030] Reference Figure 2 and Figure 4The upper end of the supporting column 15 is provided with a fixed groove 17, the bottom end of the top cover 13 near the chamfer is symmetrically and fixedly connected with a fixed column 16, the fixed column 16 is inserted into the fixed groove 17, the upper end of the top cover 13 near the chamfer is symmetrically provided with a threaded hole 18, the threaded hole 18 penetrates the fixed column 16, the bottom end of the fixed groove 17 is provided with a threaded hole 18, the threaded hole 18 is internally and threadedly connected with a fixed bolt 19, the upper end of the protective shell 1 and the upper end of the side plate 6 are symmetrically provided with a positioning hole 12, the bottom end of the top cover 13 near the chamfer is symmetrically and fixedly connected with a positioning column 14, the positioning column 14 is inserted into the positioning hole 12, the bottom end of the top cover 13 is combined with the upper end of the protective shell 1, the positioning column 14 is inserted into the positioning groove, the fixed column 16 is inserted into the fixed groove 17 at the upper end of the supporting column 15, then the fixed bolt 19 is aligned with the threaded hole 18 at the upper end of the top cover 13 and is rotated, the fixed bolt 19 is threadedly connected with the threaded hole 18 in the fixed column 16, then the fixed bolt 19 is further rotated, the fixed bolt 19 is threadedly connected with the threaded hole 18 in the fixed groove 17 at the upper end of the supporting column 15, and the installation of the top cover 13 is completed.

[0031] Reference Figure 3 The damping assembly 20 comprises a damping seat 201, a first limiting column 202, a second limiting column 203, an internal hole 204 and a first damping spring 205, the damping plate 21 is symmetrically and fixedly connected with the damping seat 201 near the chamfer at the upper end and the bottom end of the top cover 13, the first limiting column 202 is fixedly connected with the damping seat 201 at the upper end, the first limiting column 202 is provided with the internal hole 204 at the upper end, the first damping spring 205 is fixedly connected with the internal hole 204 at the bottom end, the second limiting column 203 is fixedly connected with the other end of the first damping spring 205, the second limiting column 203 is slidably connected with the internal hole 204, the second limiting column 203 is fixedly connected with the bottom end of the damping seat 201 at the bottom end of the top cover 13, the first limiting column 202 and the second limiting column 203 are sleeved with the second damping spring 23, the second damping spring 23 is fixedly connected with the opposite ends of the damping seat 201, the damping pad 22 is glued to the bottom end of the damping plate 21, the damping pad 22 is made of rubber, when the top shell is combined with the upper end of the protective shell 1, the damping pad at the bottom end of the damping plate 21 is attached to the upper end of the Hall sensor body 7, the damping plate 21 pushes the second limiting column 203 to slide in the internal hole 204, the second limiting column 203 is pressed to the first damping spring 205, the first damping spring 205 and the second damping spring 23 are compressed at the same time, so that the bottom end of the damping pad is always attached to the upper end of the Hall sensor body 7.

[0032] Principle and advantages: first, press the press block 104, make the press block 104 drive the moving plate 103 and the clamping block 105 move, the moving plate 103 is pressed to the first reset spring 102, and the first reset spring 102 is compressed, and then the side plate 6 is combined with the protective shell 1, the connecting block 29 is inserted into the connecting groove 9, the press block 104 is loosened, the first reset spring 102 resets, the moving plate 103 rebounds and drives the clamping block 105 to pop out, the clamping block 105 is clamped and fixed with the clamping hole 11, then the top cover 13 bottom is combined with the protective shell 1 upper end, the positioning column 14 is inserted into the positioning groove, the fixing column 16 is inserted into the fixing groove 17 in the upper end of the supporting column 15, the protective pad at the bottom of the damping plate 21 is attached to the upper end of the Hall sensor body 7, the damping plate 21 pushes the second limiting column 203 in the built-in hole 204 upwards, the second limiting column 203 is pressed to the first damping spring 205, the first damping spring 205 and the second damping spring 23 are compressed at the same time, so that the bottom of the protective pad is always attached to the upper end of the Hall sensor body 7, then the fixing bolt 19 is aligned with the threaded hole 18 in the upper end of the top cover 13 and is rotated, the fixing bolt 19 is screwed with the threaded hole 18 in the fixing column 16, then the fixing bolt 19 is screwed with the threaded hole 18 in the fixing groove 17 in the upper end of the supporting column 15, the installation of the top cover 13 is completed, finally, according to the reserved hole position on the mounting surface, the installation plate 2 is pulled to the both sides, the installation plate 2 drives the moving block 4 to slide in the moving groove 5, and the limiting block 27 slides in the limiting groove 28, when the installation hole 3 in the installation plate 2 is aligned with the reserved hole on the mounting surface, the protective shell 1 is installed on the mounting surface by bolts.

[0033] The utility model discloses can resist physical impact and abrasion, reduced because of the frequency of need replacing of damage, and reduced the risk of pin 8 bending, breaking or damaging caused by improper operation in the installation process, can effectively reduce the influence of external vibration on the Hall sensor in the protective shell 1, guarantee the stability of Hall sensor in the working environment.

Claims

1. A new type of Hall sensor comprising a protective housing, characterized in that: The protective shell is symmetrically provided with mounting plates at both ends, mounting holes are formed in the upper ends of the mounting plates, a side plate is rotatably connected to one end of the protective shell, a through slot is formed in one end of the side plate, connecting blocks are fixedly connected to both ends of the protective shell close to the side plate, a fixing assembly is installed in the connecting blocks, a Hall sensor body is threadedly connected to the bottom end of the protective shell, pins are symmetrically installed at one end of the Hall sensor body, the pins extend out of the side end of the side plate through the through slot, a baffle is slidably connected to the outside of the pins, an extension assembly is installed between the baffle and the Hall sensor body, a top cover is movably connected to the upper end of the protective shell, a damping plate is arranged at the bottom end of the top cover, a damping assembly is installed between the bottom end of the top cover and the damping plate, and support columns are fixedly connected to the inside corners of the protective shell. The fixing assembly comprises cavities, first return springs, a moving plate, a pressing block and a clamping block, cavities are formed in the connecting blocks, the first return springs are fixedly connected to the inside of the cavities at both ends, the moving plate is fixedly connected to the other end of the first return springs, the moving plate is slidably connected to the cavities, the pressing block and the clamping block are fixedly connected to the other end of the moving plate away from the first return springs, the other end of the pressing block away from the moving plate extends out of the side end of the protective shell, and the other end of the clamping block away from the moving plate extends out of the side end of the connecting block.

2. A novel Hall sensor according to claim 1, characterized by: A connecting slot is symmetrically formed in the end of the side plate close to the protective shell, the connecting slot is inserted into the connecting block, a clamping hole is formed in one end of the connecting slot, and the clamping hole is clamped with the clamping block.

3. A novel Hall sensor according to claim 1, characterized by: The extension assembly comprises mounting seats, extension columns and second return springs, the mounting seats are fixedly connected to the opposite ends of the baffle and the Hall sensor body, the extension columns are arranged on the opposite ends of the mounting seats, the first ends and the second ends of the extension columns are fixedly connected to the opposite ends of the mounting seats, and the second return springs are sleeved on the extension columns.

4. A novel Hall sensor according to claim 1, characterized by: The protective shell is symmetrically provided with mounting plates at both ends, mounting holes are formed in the upper ends of the mounting plates, a side plate is rotatably connected to one end of the protective shell, a through slot is formed in one end of the side plate, connecting blocks are fixedly connected to both ends of the protective shell close to the side plate, a fixing assembly is installed in the connecting blocks, a Hall sensor body is threadedly connected to the bottom end of the protective shell, pins are symmetrically installed at one end of the Hall sensor body, the pins extend out of the side end of the side plate through the through slot, a baffle is slidably connected to the outside of the pins, an extension assembly is installed between the baffle and the Hall sensor body, a top cover is movably connected to the upper end of the protective shell, a damping plate is arranged at the bottom end of the top cover, a damping assembly is installed between the bottom end of the top cover and the damping plate, and support columns are fixedly connected to the inside corners of the protective shell.

5. A novel Hall sensor according to claim 1, characterized by: The support columns are provided with fixing slots at the upper ends, the top cover is fixedly connected to the bottom end of the protective shell, fixing columns are fixedly connected to the bottom end of the top cover close to the inside corners, the fixing columns are inserted into the fixing slots, threaded holes are symmetrically formed in the top cover close to the inside corners at the upper end, the threaded holes pass through the fixing columns, threaded holes are formed in the bottom end of the fixing slots, and fixing bolts are threadedly connected to the threaded holes.

6. A novel Hall sensor according to claim 1, characterized by: ​ 7. A novel Hall sensor according to claim 1, characterized by: The damping assembly comprises a damping seat, a first limiting column, a second limiting column, a built-in hole and a first damping spring, the upper end of the damping plate is symmetrically and fixedly connected with the damping seat near the chamfer and the bottom end of the top cover, the upper end of the fixedly connected damping seat of the upper end of the damping plate is fixedly connected with the first limiting column, the upper end of the first limiting column is provided with the built-in hole, the bottom end of the built-in hole is fixedly connected with the first damping spring, the other end of the first damping spring is fixedly connected with the second limiting column, the second limiting column is in sliding connection with the built-in hole, and the other end of the second limiting column is fixedly connected with the bottom end of the damping seat fixedly connected with the bottom end of the top cover.

8. A novel Hall sensor according to claim 7, characterized by: The outer side of the first limiting column and the second limiting column is sleeved with a second damping spring, and the opposite ends of the second damping spring are fixedly connected with the damping seats.

9. A novel Hall sensor according to claim 1, characterized by: The bottom end of the damping plate is glued with a damping pad, and the damping pad is made of rubber.

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