Adjustable Hall current sensor

Abstract

The utility model discloses an adjustable Hall current sensor, which relates to the technical field of Hall current sensors and comprises a sensor base, the top of the sensor base is movably connected with an opening and closing iron core, and the front side of the sensor base is fixedly connected with a wiring terminal. According to the technical scheme of the utility model, through the cooperation of the opening and closing iron core, the opening and closing bottom core, the connecting plate, the connecting plate sliding blocks, the lifting side plate, the sensor base and the opening and closing top core, the inner wall of the lifting side plate is pulled out by pulling the connecting plate sliding blocks at the left and right sides of the inner wall of the connecting plate at the rear side of the opening and closing bottom core, so that the limiting of the connecting plate is relieved. The opening and closing iron core is replaced under the condition that the bottom of the sensor base is not detached, when the height of the opening and closing iron core needs to be adjusted, the opening and closing top core is pulled upwards, and the opening and closing iron core is automatically limited and stabilized at the adjusted height after being pulled to the needed height, so that the problem that the whole sensor needs to be detached and replaced again when a circuit with a large current difference is measured is solved. And troubles are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of Hall current sensors, in particular to an adjustable Hall current sensor. Background Art

[0002] The Hall current sensor is based on the magnetic balance Hall principle. According to the Hall effect principle, an open-loop Hall current sensor is based on the Hall direct amplification principle. That is, when the primary current IP flows through a long wire, a magnetic field will be generated around the wire. The magnitude of this magnetic field is proportional to the current flowing through the wire. The generated magnetic field is concentrated in the magnetic ring and is measured and amplified by the Hall device in the air gap of the magnetic ring. Its output voltage Vs accurately reflects the primary current IP and is processed by a special circuit to detect changes in the primary current. Hall current sensors are widely used in variable frequency speed regulation devices, inverter devices, UPS power supplies, inverter welding machines, electrolytic plating, CNC machine tools, microcomputer monitoring systems, power grid monitoring systems, and various fields that require isolated detection of current and voltage. The following problems exist in the existing technology:

[0003] Existing patent CN219871512U discloses a Hall effect current sensor comprising a mounting plate, a mounting bracket, a lower housing, and an upper housing. The mounting bracket is mounted on the top of the mounting plate. The top of the mounting bracket has a circular hole, into which a mounting rod is slidably connected. The lower housing is fixedly connected to the mounting rod. The present utility model adopts a design that allows the housing and the mounting plate to be offset, solving the problem of inconvenient mounting of the mounting plate. During use, the locking rod is first released from the mounting rod, and then the lower housing is rotated to offset the housing and the mounting plate. This eliminates the need for the hinged lug and connecting screw to be located directly above the mounting hole, thereby eliminating the obstruction and making installation more convenient.

[0004] Most existing Hall effect current sensors are basically one-piece designs, with the base and the opening and closing iron core fixed together. However, when using a Hall effect current sensor, the base is usually fixed in one position by welding or other tools to measure the current. However, when measuring circuits with large current differences, the sensor needs to be disassembled and replaced as a whole, which is more troublesome. Utility Model Content

[0005] The utility model provides an adjustable Hall current sensor to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] An adjustable Hall current sensor comprises a sensor base, the top of the sensor base is movably connected to an open and close iron core, and the front side of the sensor base is fixedly connected to a wiring terminal.

[0008] A further improvement of the technical solution of the present invention is that: the opening and closing iron core includes an opening and closing bottom core, the top of the opening and closing bottom core is rotatably connected to the opening and closing top core, the rear lower side of the opening and closing bottom core is fixedly connected to a connecting plate, the connecting plate includes a connecting plate body, the bottom of the inner wall of the connecting plate body is provided with a connecting plate slide, the inner wall of the connecting plate slide is slidably connected to the connecting plate sliders on the left and right sides respectively, the tops of the two connecting plate sliders are fixedly connected to the card blocks, the opposite surfaces of the two card blocks are fixedly connected to the access blocks, the outer walls of the two card blocks are slidably connected to the inner wall of the connecting plate body, and the two The front and rear sides of the inner wall of the access block are respectively slidably connected with cylindrical clamping rods, the opposite surfaces of the two groups of cylindrical clamping rods extend to the outer wall of the access block, and the opposite surfaces of the two groups of cylindrical clamping rods are fixedly connected with multiple springs. The sensor base includes a sensor base body, and the left and right sides of the top of the sensor base body are respectively fixedly connected with lifting side panels. The opposite surfaces of the two lifting side panels are provided with side panel access grooves, and the front and rear sides of the inner walls of the two lifting side panels are respectively provided with multiple side panel clamping grooves. The inner wall of one of the two groups of the multiple side panel clamping grooves is movably connected to the outer walls of the two groups of access blocks.

[0009] A further improvement of the technical solution of the present utility model is that: the terminal comprises a terminal body, a plurality of terminal openings are provided on the front side of the terminal body, a terminal bottom plate is fixedly connected to the lower front side of the terminal body, a terminal top plate is fixedly connected to the upper front side of the terminal body, a baffle slide is provided on the top of the terminal top plate, and slide rods are fixedly connected to the left and right sides of the opposite sides of the terminal top plate and the terminal bottom plate respectively. The terminal comprises a terminal body, a plurality of terminal openings are provided on the front side of the terminal body, a terminal bottom plate is fixedly connected to the lower front side of the terminal body, and a terminal top plate is fixedly connected to the upper front side of the terminal body. There is a terminal top plate, the top of the terminal top plate is provided with a baffle slide groove, the terminal top plate and the opposite sides of the terminal bottom plate are respectively fixedly connected with sliding rods, the inner wall of the baffle slide groove is slidably connected with a baffle, the top of the baffle extends to the outer wall of the baffle slide groove, the upper rear side of the baffle is fixedly connected with a baffle transmission block, the inner wall of the baffle transmission block is threadedly connected with a threaded rod, the bottom of the threaded rod is movably connected to the top of the terminal top plate, the bottom of the baffle extends to the bottom of the outer wall of the baffle slide groove and is provided with a plurality of wire grooves, and the left and right sides of the baffle slide groove are respectively fixedly connected with baffle sliders, and the inner walls of the two baffle sliders are slidably connected to the outer wall of the slide rod.

[0010] Due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art:

[0011] 1. The utility model provides an adjustable Hall current sensor, which adopts the cooperation of the opening and closing iron core, opening and closing bottom core, connecting plate, connecting plate slider, lifting side plate, sensor base, and opening and closing top core in this solution. When the opening and closing iron core needs to be replaced, first, the inner wall of the lifting side plate can be pulled out by pulling the connecting plate sliders on the left and right sides of the inner wall of the connecting plate on the rear side of the opening and closing bottom core, so as to release the limit of the connecting plate. The opening and closing iron core can be replaced without disassembling the bottom of the sensor base. When the height of the opening and closing iron core needs to be adjusted, it can be pulled upward by the opening and closing top core. After the opening and closing iron core is pulled to the required height, it is automatically limited and stabilized at the adjusted height. This solves the problem of having to disassemble the sensor as a whole and replace it when measuring circuits with large current differences, which is relatively troublesome.

[0012] 2. The utility model provides an adjustable Hall current sensor, which adopts the cooperation of the terminal body, wiring port, threaded rod, baffle and wire trough in this solution. When it is necessary to connect the auxiliary power supply through the terminal body, first connect the auxiliary line connector to the inner wall of the wiring port, then rotate the threaded rod to drive the baffle to move downward, and the wire trough opened at the bottom of the baffle is pressed on the top of the line, and the baffle blocks the connector so that the connector will not loosen and fall easily, thereby solving the problem of line loosening during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the main three-dimensional structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of the opening and closing iron core of the utility model;

[0015] Figure 3 This is a schematic diagram of a three-dimensional cross-sectional structure of a connecting plate of the present invention;

[0016] Figure 4 This is a schematic diagram of the three-dimensional structure of the sensor base of the present utility model;

[0017] Figure 5 This is a schematic diagram of the three-dimensional structure of the wiring terminal of the present utility model.

[0018] In the figure: 1. sensor base; 11. sensor base body; 12. lifting side panel; 13. side panel access slot; 14. side panel slot; 2. opening and closing iron core; 21. opening and closing bottom core; 22. opening and closing top core; 23. connecting plate; 231. connecting plate body; 232. connecting plate slide; 233. connecting plate slider; 234. card block; 235. access block; 236. cylindrical card rod; 237. spring; 3. terminal; 31. terminal body; 32. wiring port; 33. terminal bottom plate; 34. terminal top plate; 35. baffle slide; 36. baffle; 37. baffle transmission block; 38. threaded rod; 39. wire trough; 310. baffle slider; 311. slide rod. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] like Figure 1 As shown, the utility model provides an adjustable Hall current sensor, the top of the sensor base 1 is movably connected to an opening and closing iron core 2, and the front side of the sensor base 1 is fixedly connected to a terminal 3;

[0021] The bottom of the sensor base 1 is connected to the place to be tested. When the opening and closing core 2 needs to be replaced, the inner walls on both sides of the top of the sensor base 1 are pulled out by pulling the lower rear side of the opening and closing core 2. The limit on the rear side of the opening and closing core 2 can be released to remove the opening and closing core 2 from the top of the sensor base 1. When the height of the opening and closing core 2 needs to be adjusted, just pull the opening and closing core 2 upward, and the rear side of the opening and closing core 2 will automatically fit and limit on the inner walls on both sides of the top of the sensor base 1. When an external circuit is needed, in order to prevent the circuit from loosening during use and affecting the operation of the opening and closing core 2, after connecting the circuit to the front end of the terminal block 3, the top of the terminal block 3 is rotated to move the front inner wall of the terminal block 3 downward to limit the connected circuit connector.

[0022] like Figure 2-4As shown, the utility model provides an adjustable Hall current sensor, the opening and closing iron core 2 includes an opening and closing bottom core 21, the top of the opening and closing bottom core 21 is rotatably connected to the opening and closing top core 22, the rear side of the opening and closing bottom core 21 is fixedly connected to a connecting plate 23, the connecting plate 23 includes a connecting plate body 231, the bottom of the inner wall of the connecting plate body 231 is provided with a connecting plate slot 232, the inner wall of the connecting plate slot 232 is slidably connected to the connecting plate sliders 233 on the left and right sides, the tops of the two connecting plate sliders 233 are fixedly connected to the card blocks 234, the opposite surfaces of the two card blocks 234 are fixedly connected to the access blocks 235, and the outer walls of the two card blocks 234 are slidably connected to the connecting plate body 231 The inner wall of the two access blocks 235 is slidably connected to the front and rear sides of the inner walls with cylindrical clamping rods 236 respectively. The opposite surfaces of the two groups of cylindrical clamping rods 236 extend to the outer wall of the access block 235. The opposite surfaces of the two groups of cylindrical clamping rods 236 are fixedly connected with multiple springs 237. The sensor base 1 includes a sensor base body 11. The left and right sides of the top of the sensor base body 11 are respectively fixedly connected with lifting side plates 12. The opposite surfaces of the two lifting side plates 12 are provided with side plate access grooves 13. The front and rear sides of the inner walls of the two lifting side plates 12 are respectively provided with multiple side plate clamping grooves 14. The inner wall of one of the two groups of multiple side plate clamping grooves 14 is movably connected to the outer wall of the two groups of access blocks 235.

[0023] When the opening and closing core 2 needs to be replaced, first pull the connecting plate sliders 233 on the left and right sides of the inner wall of the connecting plate 23 on the rear side of the opening and closing bottom core 21, and pull the two connecting plate sliders 233 toward each other so that the cylindrical clamping rods 236 on the front and rear inner walls of the two connecting plate sliders 233 are pushed by the outer wall of the side plate clamping groove 14 and contract inward to press the cylindrical clamping rod 236, and pull the two clamping blocks 234 out of the inner wall of the lifting side plate 12, thereby releasing the limit of the connecting plate 23. , replace the opening and closing iron core 2 without disassembling the bottom of the sensor base 1. When the height of the opening and closing iron core 2 needs to be adjusted, by pulling the opening and closing top core 22, the opening and closing top core 22 pulls the cylindrical clamping rod 236 upward to the inner wall of the access block 235 to contract and squeeze the spring 237. After the opening and closing iron core 2 is pulled to the required height, the spring 237 resets the cylindrical clamping rod 236 into the inner wall of the side plate slot 14, and the opening and closing iron core 2 can be limited and stabilized at the adjusted height.

[0024] like Figure 5As shown, the utility model provides an adjustable Hall current sensor, the terminal 3 includes a terminal body 31, a plurality of terminal openings 32 are provided on the front side of the terminal body 31, a terminal bottom plate 33 is fixedly connected to the lower front side of the terminal body 31, a terminal top plate 34 is fixedly connected to the upper front side of the terminal body 31, a baffle slide 35 is provided on the top of the terminal top plate 34, and a slide rod 311 is fixedly connected to the left and right sides of the opposite sides of the terminal top plate 34 and the terminal bottom plate 33 respectively. The terminal 3 includes a terminal body 31, a plurality of terminal openings 32 are provided on the front side of the terminal body 31, a terminal bottom plate 33 is fixedly connected to the lower front side of the terminal body 31, and a terminal top plate 34 is fixedly connected to the upper front side of the terminal body 31. The top plate 34 of the terminal block has a baffle slot 35 on its top. The left and right sides of the opposite sides of the terminal block top plate 34 and the terminal block bottom plate 33 are respectively fixedly connected with slide bars 311. The inner wall of the baffle slot 35 is slidably connected with a baffle 36. The top of the baffle 36 extends to the outer wall of the baffle slot 35. The upper rear side of the baffle 36 is fixedly connected with a baffle transmission block 37. The inner wall of the baffle transmission block 37 is threadedly connected with a threaded rod 38. The bottom of the threaded rod 38 is movably connected to the top of the terminal block top plate 34. The bottom of the baffle 36 extends to the bottom of the outer wall of the baffle slot 35 and has a plurality of wire grooves 39. The left and right sides of the baffle slot 35 are respectively fixedly connected with baffle sliders 310. The inner walls of the two baffle sliders 310 are slidably connected to the outer wall of the slide bar 311.

[0025] When it is necessary to connect the auxiliary power supply through the terminal body 31, first connect the auxiliary line connector to the inner wall of the wiring port 32, then rotate the threaded rod 38 to drive the baffle transmission block 37 to drive the baffle 36 to move downward, and at the same time, the baffle sliders 310 on both sides of the baffle 36 slide downward through the slide rod 311, and the wire groove 39 opened at the bottom of the baffle 36 is pressed on the top of the line, and the baffle 36 blocks the connector to prevent the connector from loosening and falling easily.

[0026] The following is a detailed description of the working principle of the adjustable Hall current sensor.

[0027] like Figure 1-5As shown, when the opening and closing iron core 2 needs to be replaced, first pull the connecting plate sliders 233 on the left and right sides of the inner wall of the connecting plate 23 on the rear side of the opening and closing bottom core 21, and pull the two connecting plate sliders 233 toward the opposite sides so that the cylindrical clamping rods 236 on the front and rear inner walls of the two connecting plate sliders 233 are pushed by the outer walls of the side plate clamping groove 14 and contract inward to press the cylindrical clamping rod 236, and pull the two clamping blocks 234 out of the inner wall of the lifting side plate 12 to release the limit on the connecting plate 23, and replace the opening and closing iron core 2 without disassembling the bottom of the sensor base 1. When the height of the opening and closing iron core 2 needs to be adjusted, the opening and closing top core 22 is pulled upward to pull the same cylindrical clamping rod 236 The spring 237 is compressed toward the inner wall of the access block 235. After the opening and closing core 2 is pulled to the required height, the spring 237 resets the cylindrical clamping rod 236 into the inner wall of the side plate slot 14, so that the opening and closing core 2 can be limited and stabilized at the adjusted height. When the auxiliary power supply needs to be connected through the terminal body 31, first connect the auxiliary line connector to the inner wall of the wiring port 32, and then rotate the threaded rod 38 to drive the baffle transmission block 37 to drive the baffle 36 to move downward. At the same time, the baffle sliders 310 on both sides of the baffle 36 slide downward through the slide rod 311, and the wire groove 39 opened at the bottom of the baffle 36 is pressed on the top of the line, and the baffle 36 blocks the connector to prevent the connector from loosening and falling easily.

[0028] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An adjustable Hall current sensor, comprising a sensor base (1), characterized in that: The top of the sensor base (1) is movably connected to an opening and closing iron core (2), and the front side of the sensor base (1) is fixedly connected to a wiring terminal (3); The opening and closing iron core (2) includes an opening and closing bottom core (21), the top of the opening and closing bottom core (21) is rotatably connected to an opening and closing top core (22), a connecting plate (23) is fixedly connected to the lower rear side of the opening and closing bottom core (21), and the left and right sides of the connecting plate (23) are movably connected to the left and right inner walls of the top of the sensor base (1), respectively.

2. The adjustable Hall current sensor according to claim 1, characterized in that: The connecting plate (23) includes a connecting plate body (231), a connecting plate slide groove (232) is provided at the bottom of the inner wall of the connecting plate body (231), and connecting plate sliders (233) are slidably connected to the left and right sides of the inner wall of the connecting plate slide groove (232), and the tops of the two connecting plate sliders (233) are fixedly connected with a clamping block (234).

3. The adjustable Hall current sensor according to claim 2, characterized in that: The opposing surfaces of the two clamping blocks (234) are fixedly connected to access blocks (235); the outer walls of the two clamping blocks (234) are slidably connected to the inner wall of the connecting plate body (231); the inner walls of the two access blocks (235) are slidably connected to cylindrical clamping rods (236) on both the front and rear sides; the opposing surfaces of the two groups of cylindrical clamping rods (236) extend to the outer wall of the access blocks (235); and the opposite surfaces of the two groups of cylindrical clamping rods (236) are fixedly connected to a plurality of springs (237).

4. The adjustable Hall current sensor according to claim 1, characterized in that: The sensor base (1) comprises a sensor base body (11), wherein the left and right sides of the top of the sensor base body (11) are respectively fixedly connected with lifting side panels (12), the opposite sides of the two lifting side panels (12) are each provided with a side panel access groove (13), the front and rear sides of the inner walls of the two lifting side panels (12) are respectively provided with a plurality of side panel slots (14), and the inner wall of one of the two groups of the plurality of side panel slots (14) is movably connected to the outer wall of the two groups of access blocks (235).

5. The adjustable Hall current sensor according to claim 1, characterized in that: The terminal block (3) comprises a terminal block body (31), a plurality of terminal openings (32) are provided on the front side of the terminal block body (31), a terminal block bottom plate (33) is fixedly connected to the lower front side of the terminal block body (31), a terminal block top plate (34) is fixedly connected to the upper front side of the terminal block body (31), a baffle slide groove (35) is provided on the top of the terminal block top plate (34), and slide bars (311) are fixedly connected to the left and right sides of the opposite surfaces of the terminal block top plate (34) and the terminal block bottom plate (33).

6. The adjustable Hall current sensor according to claim 5, characterized in that: The inner wall of the baffle slot (35) is slidably connected to a baffle (36), the top of the baffle (36) extends to the outer wall of the baffle slot (35), and a baffle transmission block (37) is fixedly connected to the upper rear side of the baffle (36), the inner wall of the baffle transmission block (37) is threadedly connected to a threaded rod (38), and the bottom of the threaded rod (38) is movably connected to the top of the terminal top plate (34).

7. The adjustable Hall current sensor according to claim 6, characterized in that: The bottom of the baffle (36) extends to the bottom of the outer wall of the baffle slide (35) and is provided with a plurality of wire grooves (39). Baffle sliders (310) are fixedly connected to the lower left and right sides of the baffle slide (35), and the inner walls of the two baffle sliders (310) are slidably connected to the outer wall of the slide rod (311).

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