Anti-interference Hall current sensor

Abstract

The utility model provides an anti-interference Hall current sensor, and relates to the current sensor field, the anti-interference Hall current sensor comprises a main body unit and a rotation unit, the main body unit comprises a support block, the top of the support block is detachably connected with a sensor body, the bottom of the support block is provided with a hollow block, and the hollow block is detachably connected with the sensor body. Supporting legs are fixedly connected to the two sides of the bottom of the hollow block. The sensor body is supported and fixed by the main body unit, the requirement of flexible rotation or angle adjustment of the sensor in some application scenes is met by combining the main body unit with the rotating unit, and the sensor body can rotate within a certain range by the rotating unit through the design of the rotating column and the rotating disc. According to the invention, the rotating unit is arranged to adapt to different measuring angles or positions, and the clamping block, the through groove and the clamping groove are matched, so that the rotating unit can be stably clamped and fixed when rotating to a specific position, and shaking or deviation in the use process is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of current sensor, concretely is an anti -interference's hall current sensor. BACKGROUND

[0002] The Hall current sensor is a current measuring device based on the Hall effect principle, which can measure without direct contact with the measured current, and has certain inhibition ability to electromagnetic interference based on the Hall effect principle. The Hall current sensor can work stably in a complex electromagnetic environment, and will not be significantly affected even in a strong magnetic field.

[0003] According to the application number: 202420731629.2, a kind of Hall current sensor is disclosed, including sensor main body, the bottom of the sensor main body is vertically fixed with a connecting shaft, the connecting shaft is installed with sensor support seat, a spring is sleeved on the connecting shaft, the spring is between sensor main body and sensor support seat, the lower part of the connecting shaft is fixed with a bevel gear, the bottom of the sensor support seat is set with the meshing groove matched with bevel gear in middle position;The example type in this comparison needs to press down sensor main body when needing to rotate sensor main body, make bevel gear on connecting shaft from the bottom of meshing groove disengaged, when rotating is completed, sensor main body is loosened, spring pushes connecting shaft to slide upwards, and make bevel gear re-enter meshing groove inside, to complete locking in turn;

[0004] The comparison case well solves the problem of inconvenient angle adjustment operation of the sensor in the prior art, but since the spring plays a supporting role, the supporting effect of the spring is not stable, and the sensor is easily floated up and down due to the deformation of the spring during use, affecting the stability of the sensor during use.

[0005] Therefore, the utility model provides an anti-interference Hall current sensor to solve the above problems. CONTENT OF UTILITY MODEL

[0006] To solve the above technical problems, the utility model provides the following technical scheme:

[0007] The utility model relates to an anti -interference hall current sensor, including main body unit and rotation unit, the main body unit includes support block, the top of support block is detachably connected with sensor body, the surface of sensor body is provided with anti -interference subassembly a, anti -interference subassembly a includes stainless steel shell, epoxy resin coating and anticorrosive polyurethane anticorrosive coating, the bottom of support block is provided with hollow block, both sides of the bottom of hollow block are fixedly connected with support leg, the rotation unit includes rotation column, rotation column is located in the inner chamber of hollow block, and with the inner wall of hollow block is through bearing swing joint, the surface of rotation column and located in the inner chamber of hollow block fixedly connected with rotating disc, the front of hollow block is provided with hollow block, the left side of rotating disc is through the pivot and torsional spring swing connection has the clamping block, the clamping block with the inner chamber of through slot swing connection, the bottom of through slot inner chamber is provided with the clamping groove, the clamping block with the inner chamber of clamping groove is engaged.

[0008] Further, in the utility model, the both sides of the top of the support block are slidably connected with positioning racks, the positioning racks are movably connected with the lower end of the surface of the sensor body, the both sides of the top of the support block are provided with sliding grooves, the sliding grooves are slidably connected with sliding blocks, and the top of the sliding blocks is fixedly connected with the bottom of the positioning racks.

[0009] Further, in the utility model, the both sides of the lower end of the inner cavity of the support block are provided with accommodating grooves, the inner cavities of the accommodating grooves are slidably connected with movable blocks, the both sides of the front of the support block are provided with push blocks, the rear ends of the push blocks penetrate into the inner cavities of the accommodating grooves and are fixedly connected with the front surfaces of the movable blocks.

[0010] Further, in the utility model, the both sides of the lower end of the inner cavity of the support block are provided with accommodating grooves, the inner cavities of the accommodating grooves are slidably connected with movable blocks, the both sides of the front of the support block are provided with push blocks, the rear ends of the push blocks penetrate into the inner cavities of the accommodating grooves and are fixedly connected with the front surfaces of the movable blocks.

[0011] Further, in the utility model, the both sides of the lower end of the inner cavity of the support block are provided with accommodating grooves, the inner cavities of the accommodating grooves are slidably connected with movable blocks, the both sides of the front of the support block are provided with push blocks, the rear ends of the push blocks penetrate into the inner cavities of the accommodating grooves and are fixedly connected with the front surfaces of the movable blocks.

[0012] Beneficial effects, the utility model has following beneficial effects:

[0013] The utility model provides a support and fixed of sensor body, and through the combination with the rotation unit, realized the flexible rotation or the angle adjustment demand of sensor under some application scene, anti -interference assembly a can reduce the interference of external electromagnetic field to sensor body internal circuit, prevent the electrical contact and the leakage phenomenon to occur, the rotation unit passes through the design of rotation column and rotation disc, makes sensor body can rotate in a certain range to adapt to different measurement angle or position, the cooperation design of clamping block, through slot and clamping groove makes rotation unit can stably clamping and fixed when rotating to specific position, avoids the occurrence of shaking or deviation in the use process, improved the flexibility and adaptability of sensor, makes it can more accurately measure the current of different direction and position. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the front view structure schematic drawing of the utility model;

[0015] Figure 2 It is the separation state structure schematic drawing of the utility model support block, hollow block and rotation column;

[0016] Figure 3 It is the explosion state structure schematic drawing of the utility model positioning frame, movable block and guide wheel;

[0017] Figure 4 It is the section view structure schematic drawing of the utility model support block.

[0018] In the drawing:

[0019] 1, main unit;101, support block;102, sensor body;103, hollow block;104, support leg;105, positioning frame;106, sliding slot;107, sliding block;108, accommodating groove;109, movable block;110, traction rope;111, guide wheel;112, tension spring;113, positioning column;114, push block;2, rotation unit;201, rotation column;202, rotation disc;203, through slot;204, clamping block;205, clamping groove. DETAILED DESCRIPTION

[0020] For a better understanding of the technical content of the present application, specific embodiments are described below with the accompanying drawings. In the present disclosure, the aspects of the present application are described with reference to the accompanying drawings, which show many embodiments of the description. The embodiments of the present disclosure are not necessarily defined in all aspects including the present application. It should be understood that the various concepts and embodiments introduced above, as well as those described in more detail below, can be implemented in any of a number of ways, as the concepts and embodiments disclosed herein are not limited to any implementation. In addition, some aspects of the present application can be used alone, or in any appropriate combination with other aspects of the present application.

[0021] Embodiment 1

[0022] As Figures 1-4 shown, the first embodiment of the present application provides an anti-interference Hall current sensor, which comprises a main unit 1 and a rotating unit 2, the main unit 1 comprises a support block 101, the top of the support block 101 is detachably connected with a sensor body 102, the surface of the sensor body 102 is provided with an anti-interference assembly a, the anti-interference assembly a comprises a stainless steel shell, an epoxy resin coating and a corrosion-resistant polyurethane corrosion-resistant coating, the bottom of the support block 101 is provided with a hollow block 103, both sides of the bottom of the hollow block 103 are fixedly connected with a supporting leg 104, the rotating unit 2 comprises a rotating column 201, the rotating column 201 is located in the inner cavity of the hollow block 103 and is movably connected with the inner wall of the hollow block 103 through a bearing, the surface of the rotating column 201 and located in the inner cavity of the hollow block 103 is fixedly connected with a rotating disc 202, the front surface of the hollow block 103 is provided with a hollow block 103, the left side of the rotating disc 202 is movably connected with a clamping block 204 through a rotating shaft and a torsional spring, the clamping block 204 is movably connected with the inner cavity of the through groove 203, the bottom of the inner cavity of the through groove 203 is provided with a clamping groove 205, and the clamping block 204 is clamped in the inner cavity of the clamping groove 205.

[0023] As Figures 1-4As shown, the sensor body 102 is a SC2440 series Hall current sensor, the stainless steel shell has excellent corrosion resistance and mechanical strength, which can effectively protect the internal circuit of the sensor body 102 from the influence of the external environment, and the stainless steel also has certain electromagnetic shielding capability, which can reduce the interference of the external electromagnetic field on the internal circuit of the sensor body 102, the epoxy resin has good insulation performance and mechanical strength, which can effectively isolate the internal circuit of the sensor body 102 from the external environment, prevent electrical contact and leakage phenomenon, the polyurethane corrosion-resistant coating has good weather resistance and chemical corrosion resistance, which can maintain stable performance in harsh environments, and can provide certain protection effect for the epoxy resin coating, the main unit 1 provides support and fixation for the sensor body 102, and through the combination with the rotating unit 2, the flexible rotation or angle adjustment requirement of the sensor in some application scenarios is realized, the rotating unit 2 is designed through the rotating column 201 and the rotating disc 202, so that the sensor body 102 can rotate within a certain range to adapt to different measurement angles or positions, the cooperation design of the clamping block 204, the through slot 203 and the clamping groove 205 makes the rotating unit 2 can be stably clamped and fixed when rotating to a certain position, avoiding shaking or deviation during use, improving the flexibility and adaptability of the sensor, so that it can more accurately measure the current in different directions and positions.

[0024] Embodiment 2

[0025] With reference to Figures 2-4 , this is the second embodiment of the present application, which is based on the previous embodiment.

[0026] In this embodiment, the two sides of the top of the support block 101 are slidably connected with positioning frames 105, the positioning frames 105 are movably connected with the lower end of the surface of the sensor body 102, the two sides of the top of the support block 101 are provided with sliding grooves 106, the inner cavities of the sliding grooves 106 are slidably connected with sliding blocks 107, and the top of the sliding block 107 is fixedly connected with the bottom of the positioning frame 105.

[0027] The two sides of the lower end of the inner cavity of the support block 101 are provided with accommodating grooves 108, the inner cavities of the accommodating grooves 108 are slidably connected with movable blocks 109, and the two sides of the front of the support block 101 are provided with push blocks 114.

[0028] As Figures 2-4As shown, the positioning frame 105 is movably connected with the sensor body 102, and through the sliding cooperation of the sliding groove 106 and the sliding block 107, the detachable and convenient installation of the sensor body 102 on the supporting block 101 is realized, the accommodating groove 108 provides a sliding space for the movable block 109, and through the pushing of the pushing block 114, the flexible movement of the movable block 109 in the accommodating groove 108 can be realized.

[0029] Embodiment 3

[0030] Refer to Figure 3 and 4 , the third embodiment of the utility model, the embodiment is based on the previous two embodiments.

[0031] In the embodiment, the two movable blocks 109 are fixedly connected with traction ropes 110 on the sides away from each other, the traction ropes 110 extend to the inner cavity of the sliding groove 106 from the ends away from the movable blocks 109, and are fixedly connected with the sliding blocks 107, the guiding wheels 111 are arranged on the two sides of the inner cavity of the supporting block 101 and located at the communication positions of the sliding groove 106 and the accommodating groove 108, and the traction ropes 110 are slidably connected with the surfaces of the guiding wheels 111.

[0032] The two sliding blocks 107 are fixedly connected with the tension springs 112 on the sides close to each other, the tension springs 112 are fixedly connected with the inner walls of the sliding grooves 106 at the ends away from the sliding blocks 107, the inner cavities of the movable blocks 109 are slidably connected with the positioning columns 113, and the two ends of the positioning columns 113 are fixedly connected with the inner walls of the accommodating grooves 108.

[0033] As shown in Figure 3 and 4 , the traction ropes 110 connect the movable blocks 109 and the sliding blocks 107, through the guiding effect of the guiding wheels 111, the linkage between the movable blocks 109 and the sliding blocks 107 is realized, when the movable blocks 109 move, through the pulling of the traction ropes 110, the sliding blocks 107 can be driven to slide in the sliding grooves 106, and then the position of the positioning frame 105 is adjusted, the tension springs 112 provide stable pulling force for the sliding blocks 107, so that the sliding blocks 107 can remain in place when not affected by external force, the positioning columns 113 provide sliding guiding and fixing effect for the movable blocks 109, and the stable sliding of the movable blocks 109 in the accommodating grooves 108 is ensured.

[0034] In use, the SC2440 series Hall current sensor adopts high frequency chopping technology, has high magnetic field consistency and symmetry in the full working voltage and working temperature range, the internal integrated voltage stabilizing module and overvoltage protection function improve the anti-interference ability of the chip, can accurately detect weak magnetic field change, is suitable for occasions that need high sensitivity detection, when the sensor body 102 needs to be installed, first, the support leg 104 is fixed by the bolt, the base part is fixed at the specified position, then the two push blocks 114 are pressed to move towards each other, the movable block 109 is driven to move by the push block 114, the movable block 109 moves to pull the sliding block 107 to move, the two sliding blocks 107 move relative to each other in the inner cavity of the sliding groove 106, the sliding block 107 drives the positioning frame 105 to move, so that the two positioning frames 105 gradually move away, the sliding block 107 stretches the tension spring 112 and makes it deform, then the sensor body 102 is placed on the top of the support block 101, after the placement is completed, the push block 114 is loosened, at this time, the tension of the tension spring 112 disappears and resets, the reset elastic force of the tension spring 112 drives the positioning frame 105 to reset, so that the two positioning frames 105 cooperate to fix the sensor body 102, when the angle of the sensor body 102 needs to be adjusted during use, first, the clamping block 204 is pulled upwards to move from the inner cavity of the clamping groove 205 to the inner cavity of the through groove 203, at this time, the positioning effect of the clamping block 204 disappears, the angle of the sensor body 102 is adjusted by pushing the clamping block 204 to rotate the rotating disc 202 and the rotating column 201, after the adjustment is completed, the clamping block 204 is loosened, at this time, the clamping block 204 is reset to the inner cavity of the clamping groove 205 and is clamped in the inner cavity, so that the sensor body 102 can be repositioned.

[0035] The standard parts used in the application file can be purchased from the market, and can be customized according to the description and drawings, and the specific connection mode of each part adopts the conventional bolt, rivet, welding and other conventional means in the prior art, the mechanical, parts and equipment adopt the conventional type in the prior art, the control mode is automatically controlled by the controller, and the control circuit of the controller can be realized by simple programming of the person skilled in the art, which belongs to the common knowledge in the art, and the application is mainly used to protect the mechanical device, so the control mode and circuit connection are not explained in detail.

[0036] Although the utility model has disclosed as above with preferred embodiments, it is not used to limit the utility model. Those skilled in the art without departing from the spirit and scope of the utility model can make various changes and decorations. Therefore, the protection scope of the utility model shall be subject to the definition of the claims.

Claims

1. An interference-resistant Hall current sensor comprising a main unit (1) and a rotating unit (2), characterized in that: The main unit (1) includes a support block (101), the top of the support block (101) is detachably connected with a sensor body (102), the surface of the sensor body (102) is provided with an anti-interference assembly a, the a includes a stainless steel shell, an epoxy resin coating and a corrosion-resistant polyurethane corrosion-resistant coating, the bottom of the support block (101) is provided with a hollow block (103), both sides of the bottom of the hollow block (103) are fixedly connected with supporting legs (104), the rotating unit (2) includes a rotating column (201), the rotating column (201) is located in the inner cavity of the hollow block (103) and is movably connected with the inner wall of the hollow block (103) through a bearing, the surface of the rotating column (201) and located in the inner cavity of the hollow block (103) is fixedly connected with a rotating disc (202), the front surface of the hollow block (103) is provided with a hollow block (103), the left side of the rotating disc (202) is movably connected with a clamping block (204) through a rotating shaft and a torsional spring, the clamping block (204) is movably connected with the inner cavity of the through groove (203), and the bottom of the inner cavity of the through groove (203) is provided with a clamping groove (205), and the clamping block (204) is clamped in the inner cavity of the clamping groove (205).

2. The tamper-resistant Hall current sensor of claim 1, wherein: Both sides of the top of the support block (101) are slidably connected with positioning racks (105), the positioning racks (105) are movably connected with the lower end of the surface of the sensor body (102), both sides of the top of the support block (101) are provided with sliding grooves (106), the inner cavities of the sliding grooves (106) are slidably connected with sliding blocks (107), and the top of the sliding block (107) is fixedly connected with the bottom of the positioning rack (105).

3. The anti-interference Hall current sensor as described in claim 1, characterized in that: Both sides of the lower end of the inner cavity of the support block (101) are provided with accommodating grooves (108), the inner cavities of the accommodating grooves (108) are slidably connected with movable blocks (109), and both sides of the front surface of the support block (101) are provided with push blocks (114), the rear end of the push block (114) penetrates into the inner cavity of the accommodating groove (108) and is fixedly connected with the front surface of the movable block (109).

4. The tamper-resistant Hall current sensor of claim 3, wherein: The side, away from the movable block (109), of the two movable blocks (109) is fixedly connected with a traction rope (110), one end of the traction rope (110), away from the movable block (109), extends to the inner cavity of the sliding groove (106) and is fixedly connected with the sliding block (107), both sides of the inner cavity of the support block (101) and located at the communication between the sliding groove (106) and the accommodating groove (108) are provided with guide wheels (111), and the traction rope (110) is slidably connected with the surface of the guide wheel (111).

5. The tamper-resistant Hall current sensor of claim 4, wherein: the Hall current sensor is configured to generate the Hall current signal in response to the magnetic field generated by the current flowing through the conductor. The side, close to the sliding block (107), of the two sliding blocks (107) is fixedly connected with a tensile spring (112), one end of the tensile spring (112), away from the sliding block (107), is fixedly connected with the inner wall of the sliding groove (106), and the inner cavity of the movable block (109) is slidably connected with a positioning column (113), both ends of the positioning column (113) are fixedly connected with the inner wall of the accommodating groove (108).

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