Multi-air-gap iron core Hall sensor

Abstract

The utility model discloses a multi-air-gap iron core Hall sensor, which relates to the technical field of Hall sensors and comprises a transverse seat, a fixed seat is fixedly connected to the outer wall of one side of the transverse seat, a rotating assembly is arranged on one side of the fixed seat, and the fixed seat is rotatably connected with a movable seat through the rotating assembly. A locking assembly is arranged on one side of the movable seat, and the movable seat and the fixed seat are locked and fixed through the locking assembly. According to the utility model, the current sensor is based on the zero magnetic flux principle, a magnetic field generated by the feedback winding is utilized to accurately counteract a magnetic field generated by a measured current, so that the magnetic core is always in a zero magnetic flux state, the related problems of the magnetic core and external interference can be effectively overcome, and the measurement error can be generally controlled within + / -0.1% or even higher precision; the power consumption is lower than that of a traditional current sensor, and the use requirements of people are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to hall sensor technical field especially relates to a kind of multi-air-gap core hall sensor. BACKGROUND

[0002] Hall effect sensor is also called hall sensor, which is a transducer that converts varying magnetic fields into varying output voltages. Hall sensors are primarily used to measure magnetic fields, but they can also measure physical quantities that generate and affect magnetic fields, such as proximity switches, Hall, position measurement, speed measurement, and current measurement devices.

[0003] In the manufacturing process of traditional multi-air-gap core hall sensor, due to the machining precision problem of the air gap of the core, it may cause position error of the sensor during operation. This error can significantly affect the measurement accuracy and reliability of the sensor, and thus limit its use in high-precision application scenarios. Therefore, a multi-air-gap core hall sensor is needed to solve the above problems. SUMMARY

[0004] The utility model aims at solving the shortcomings in the prior art and provides a kind of multi-air-gap core hall sensor. Its advantages are as follows: the current sensor is based on zero flux principle, and the magnetic field generated by feedback winding accurately offsets the magnetic field generated by measured current, so that the magnetic core is always in zero flux state, which can effectively overcome the related problems of magnetic core and external interference, and the measurement error can be controlled within ±0.1%, even higher precision. The power consumption is also lower than that of traditional current sensor, which meets the needs of users.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A kind of multi-air-gap core hall sensor, including horizontal seat, the lateral outer wall of the horizontal seat is fixedly connected with fixed seat, the fixed seat is provided with rotating assembly on one side, and the fixed seat is rotatably connected with movable seat by rotating assembly;

[0007] The side of the movable seat is provided with locking assembly, and the movable seat is locked and fixed with the fixed seat by locking assembly.

[0008] Through the above technical scheme: the current sensor is based on zero flux principle, and the magnetic field generated by feedback winding accurately offsets the magnetic field generated by measured current, so that the magnetic core is always in zero flux state, which can effectively overcome the related problems of magnetic core and external interference, and the measurement error can be controlled within ±0.1%, even higher precision. The power consumption is also lower than that of traditional current sensor, which meets the needs of users.

[0009] The utility model further sets up, the inside of fixed seat is provided with the positioning pipe, and the positioning pipe has the PCB board connected through bolt fixing.

[0010] Through the above technical scheme: through the PCB board can guarantee that whole current sensor can stable operation.

[0011] The utility model further sets up, one side of PCB board is fixedly connected with the pin, and the bottom of pin is fixedly connected with hall piece body.

[0012] Through the above technical scheme: through hall piece body can realize the conversion of magnetic field to voltage, also be used for current measurement and monitoring.

[0013] The utility model further sets up, the top outer wall of fixed seat is provided with the cooperation groove, and the fixed seat is clamped with upper cover plate through cooperation groove.

[0014] Through the above technical scheme: guarantee the sealing property and stability after the installation of upper cover plate.

[0015] The utility model further sets up, rotating assembly includes the rotating seat of fixed connection in one side outer wall of fixed seat, both sides inner wall of rotating seat all are rotationally connected with the pivot, and the circumferential outer wall of pivot is fixedly connected with the connecting plate, and connecting plate is fixedly connected with movable seat.

[0016] Through the above technical scheme: through the rotation of pivot in rotating seat, can conveniently unfold and buckle movable seat.

[0017] The utility model further sets up, locking assembly includes the male buckle of fixed connection in the circumferential outer wall of movable seat, and one side outer wall of fixed seat is fixedly connected with the female buckle, and male buckle cooperates with female buckle.

[0018] Through the above technical scheme: guarantee the locking effect of locking assembly.

[0019] The utility model further sets up, and one side outer wall of male buckle is provided with locking groove, and female buckle is clamped in the inside of locking groove.

[0020] Through the above technical scheme: guarantee the stability of whole current sensor after buckling.

[0021] The utility model further sets up, and one end of movable seat is provided with the butt joint hole, and one end of fixed seat is fixedly connected with the butt joint column, and butt joint column is adapted with butt joint hole.

[0022] Through the above technical scheme: through the steady insertion between butt joint column and butt joint hole, can effectively guarantee the stability of connection between fixed seat and movable seat after buckling.

[0023] The utility model discloses the beneficial effect is:

[0024] 1, this current sensor is based on zero flux principle, utilize the magnetic field of feedback winding generation accurate offset the magnetic field of measured current generation, make the magnetic core always be in zero flux state, can effectively overcome the magnetic core relevant problem and outside interference, measurement error can be controlled within ±0.1% usually, even higher precision, simultaneously, the power consumption of this current sensor is also lower relative to traditional current sensor, satisfy the use demand of people;

[0025] 2, in the utility model, through setting up rotating component and locking assembly, can make this current sensor have the function of unfolding and buckling, and the design that can unfold and buckle makes the current sensor when installing not need like traditional fixed structure sensor to carry out complicated wiring and dismounting work. The installation personnel only need to unfold the sensor, cover on the conductor of measured current, then buckle can complete installation, greatly save the installation time and manpower cost, improve work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The utility model proposes a kind of fixed seat and movable seat unfolding structure schematic view of multi-gap core hall sensor;

[0027] Figure 2 The utility model proposes a kind of multi-gap core hall sensor Figure 1 The utility model proposes the enlarged structure schematic view of place A in;

[0028] Figure 3 The utility model proposes a kind of fixed seat and movable seat buckling state structure schematic view of multi-gap core hall sensor.

[0029] In the drawing: 1, upper cover plate;2, PCB board;3, fixed seat;4, horizontal seat;5, movable seat;6, butt joint hole;7, male buckle;8, locking groove;9, female buckle;10, rotating seat;11, rotating shaft;12, pin;13, hall piece body;14, matching groove;15, butt joint column. DETAILED DESCRIPTION

[0030] The technical scheme of the patent will be further described in detail in combination with specific implementation manners.

[0031] The embodiments of the patent are described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the patent, and cannot be understood as limiting the patent.

[0032] In the description of the patent, it needs to be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the patent and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the patent.

[0033] In the description of the patent, it needs to be understood that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "setting" should be understood broadly, for example, it can be fixedly connected, set, or detachably connected, set, or integrally connected, set. For those skilled in the art, the specific meaning of the above terms in the patent can be understood according to the specific circumstances.

[0034] Reference Figures 1-3 A multi-air-gap core Hall sensor, comprising a horizontal seat 4, one side outer wall of the horizontal seat 4 is fixedly connected with a fixed seat 3, a rotating assembly is arranged on one side of the fixed seat 3, and the fixed seat 3 is rotatably connected with a movable seat 5 through the rotating assembly;

[0035] One side of the movable seat 5 is provided with a locking assembly, and the movable seat 5 is locked and fixed with the fixed seat 3 through the locking assembly.

[0036] Specifically, the inside of the fixed seat 3 is provided with a positioning pipe, the PCB board 2 is fixedly connected with the positioning pipe through bolts, and the stable operation of the entire current sensor can be ensured through the PCB board 2.

[0037] Specifically, one side of the PCB board 2 is fixedly connected with a pin 12, and the bottom end of the pin 12 is fixedly connected with a Hall piece body 13, which can realize the conversion of magnetic field to voltage, and also be used for current measurement and monitoring.

[0038] Specifically, a matching groove 14 is formed in the top outer wall of the fixed seat 3, and the fixed seat 3 is clamped with an upper cover plate 1 through the matching groove 14, so as to ensure the sealing property and stability of the upper cover plate 1 after installation.

[0039] Specifically, the rotating assembly comprises a rotating seat 10 fixedly connected to one side outer wall of the fixed seat 3, rotating shafts 11 rotatably connected to the inner walls of the two sides of the rotating seat 10, and a connecting plate fixedly connected to the circumferential outer wall of the rotating shaft 11, the connecting plate being fixedly connected with the movable seat 5, the rotating shaft 11 being rotatable in the rotating seat 10, and the movable seat 5 being capable of being conveniently unfolded and buckled.

[0040] Specifically, the locking assembly includes a male buckle 7 fixedly connected to the outer wall of the circumference of the movable seat 5, and a female buckle 9 fixedly connected to the outer wall of one side of the fixed seat 3.

[0041] Specifically, the outer wall of one side of the male buckle 7 is provided with a locking groove 8, and the female buckle 9 is clamped in the locking groove 8, so that the female buckle 9 is locked in the locking groove 8 of one side of the male buckle 7, thereby ensuring the stability of the current sensor after buckling.

[0042] Specifically, one end of the movable seat 5 is provided with a butt joint hole 6, and one end of the fixed seat 3 is fixedly connected with a butt joint column 15, the butt joint column 15 is matched with the butt joint hole 6, and the stability of the connection between the fixed seat 3 and the movable seat 5 after buckling can be effectively ensured through the stable insertion between the butt joint column 15 and the butt joint hole 6.

[0043] Working principle: when the staff needs to install the current sensor, the male buckle 7 can be pried open to separate from the female buckle 9, so that the fixed seat 3 and the movable seat 5 of the current sensor can be quickly unfolded, and through the setting of the rotating assembly and the locking assembly, the current sensor can have the functions of unfolding and buckling, and the design of unfolding and buckling makes the current sensor not need to be wired and disassembled like the traditional fixed structure sensor during installation. The installer only needs to unfold the sensor, put it on the conductor of the measured current, and then buckle it to complete the installation, which greatly saves the installation time and labor cost and improves the work efficiency.

[0044] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A multi-air-gap core Hall sensor comprising a cross seat (4), characterized in that, One side outer wall of the transverse seat (4) is fixedly connected with a fixing seat (3), one side of the fixing seat (3) is provided with a rotating assembly, and the fixing seat (3) is rotatably connected with a movable seat (5) through the rotating assembly; One side of the movable seat (5) is provided with a locking assembly, and the movable seat (5) is locked and fixed with the fixing seat (3) through the locking assembly.

2. The multi-air-gap core Hall sensor according to claim 1, characterized in that, The inside of the fixing seat (3) is provided with a positioning pipe, and the positioning pipe is fixedly connected with a PCB board (2) through bolts.

3. A multi-gap core Hall sensor according to claim 2, characterized in that One side of the PCB board (2) is fixedly connected with a pin (12), and the bottom end of the pin (12) is fixedly connected with a Hall piece body (13).

4. The multi-air-gap core Hall sensor according to claim 3, characterized in that The top outer wall of the fixing seat (3) is provided with a matching groove (14), and the fixing seat (3) is clamped with an upper cover plate (1) through the matching groove (14).

5. A multi-gap core Hall sensor according to claim 4, characterized in that The rotating assembly comprises a rotating seat (10) fixedly connected to one side outer wall of the fixing seat (3), rotating shafts (11) rotatably connected to the inner walls on both sides of the rotating seat (10), and a connecting plate fixedly connected to the circumferential outer wall of the rotating shaft (11), wherein the connecting plate is fixedly connected with the movable seat (5).

6. A multi-gap core Hall sensor according to claim 5, characterized in that The locking assembly comprises a male buckle (7) fixedly connected to the circumferential outer wall of the movable seat (5), a female buckle (9) fixedly connected to one side outer wall of the fixing seat (3), and the male buckle (7) and the female buckle (9) are matched.

7. A multi-gap core Hall sensor according to claim 6, characterized in that The side outer wall of the male buckle (7) is provided with a locking groove (8), and the female buckle (9) is clamped in the inside of the locking groove (8).

8. A multi-gap core Hall sensor according to claim 7, characterized in that One end of the movable seat (5) is provided with a butt joint hole (6), one end of the fixing seat (3) is fixedly connected with a butt joint column (15), and the butt joint column (15) is matched with the butt joint hole (6).

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