Hall current sensor

Abstract

The utility model discloses a Hall current sensor, which is characterized in that a first semicircular magnetic core, a Hall element and a pcb (printed circuit board) are arranged in a first base body, a first semicircular through hole is formed in the top of the first base body, and fixing tables are arranged on the first base body at the bottom of the outer side of the first semicircular through hole in a protruding manner and are distributed along the circumference of the first semicircular through hole; the second base body is installed at the top of the first base body in a rotary opening and closing mode, a second semicircular magnetic core is arranged in the second base body, a second semicircular through hole is formed in the bottom of the second base body, and the first semicircular through hole and the second semicircular through hole are combined to form a measuring installation hole of the wire. By designing an opening locking structure, the Hall current sensor is convenient to open during installation, the upper and lower base bodies can be tightly closed after installation is completed, and the current detection precision of the Hall current sensor is improved. Meanwhile, the fixing table is arranged on the periphery of the measuring hole, positioning and fixing of the wire and the sensor are facilitated, and measuring errors caused by position and direction deviation of the wire are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of electric signal detection, in particular to a Hall current sensor. Background Art

[0002] The Hall current sensor is a magnetoelectric conversion device that includes a magnetic core, a Hall element, a PCB board, etc. It uses the Hall effect principle to measure the current in the wire and is widely used.

[0003] Conventional technology requires the Hall effect current sensor to be opened before it can be installed on the conductor measuring the desired current. This makes disassembly difficult, and a loose seal can affect the transmission performance of the magnetic circuit, leading to inaccurate measurements. Furthermore, the conductor is difficult to secure to the Hall effect current sensor, affecting its orientation and stability, further leading to inaccurate current measurement. Utility Model Content

[0004] In view of this, an embodiment of the present invention provides a Hall current sensor to solve the technical problem of inconvenient installation of the Hall current sensor and the measuring wire in the prior art.

[0005] The present invention provides a Hall effect current sensor, comprising:

[0006] A first substrate, which has a first semicircular ring magnetic core, a Hall element and a PCB board built in it, a first semicircular through hole is provided on the top of the first substrate, and a fixing platform is protruded on the first substrate at the bottom outside the first semicircular through hole, and the fixing platform is distributed along the circumference of the first semicircular through hole;

[0007] The second base is rotatably installed on the top of the first base, the second base has a second semicircular ring core built in, and the bottom of the second base is provided with a second semicircular through hole, and the first semicircular through hole and the second semicircular through hole are combined to form a measurement installation hole for the wire.

[0008] Preferably, mounting holes are provided on both sides of the bottom of the first base body, concave arc-shaped portions are provided on both side walls of the first base body above the mounting holes, and openings are provided on the top and bottom of the first base body.

[0009] Preferably, a first hinge axis is protruded from the center of the first end of the top of the first base body, and a turntable is protruded from the center of the second end of the top of the first base body. A movable column head is elastically retracted in the turntable, and the movable column heads on both sides protrude from the turntable by a certain distance.

[0010] Preferably, the first semicircular magnetic core is installed in the first substrate through the opening at the top of the first substrate, and the first semicircular magnetic core is embedded in the outer periphery of the first semicircular through hole, the Hall element is installed in the second end of the top of the first substrate, and is located at the upper end of the first semicircular magnetic core, the connecting wire of the PCB board is led out from the opening at the bottom of the first substrate, and the interior of the first substrate is filled with hot melt adhesive.

[0011] Preferably, the second base body is provided with an opening at the bottom, the second semi-circular magnetic core is installed in the second base body through the opening at the bottom of the second base body, and the second semi-circular magnetic core is embedded in the outer periphery of the second semi-circular through hole.

[0012] Preferably, second hinge shafts are protruding on both sides of the first end of the bottom of the second base body, and the axial directions of the hinge shafts and the movable column head are parallel to the axial direction of the measuring mounting hole; the second hinge shafts are sleeved on both sides of the first hinge shaft and are rotatably connected through a rotating shaft; snap plates are provided on both sides of the center of the second end of the bottom of the second base body, and the snap plates are located on both sides of the turntable, and snap holes are penetrated through the snap plates, and the movable column head is snap-connected in the snap holes.

[0013] Preferably, an arc-shaped opening is provided on the outer side wall of the second base body, and the arc-shaped opening is located at the outer periphery of the second semi-circular magnetic core, and the second semi-circular magnetic core is fixed in the second base body through the arc-shaped opening.

[0014] Preferably, a holding portion is protruding from the second base on the upper end of the snap plate.

[0015] Preferably, a first inclined platform is provided on the first base body at the periphery of the first semicircular through hole, and a second inclined platform is provided on the second base body at the periphery of the second semicircular through hole. The fixed platform extends vertically outward from the first inclined platform for a certain distance, and the radius of the fixed platform is consistent with that of the first semicircular through hole. A bending limit strip is provided at the periphery of the fixed platform.

[0016] Preferably, the arc length of the fixing platform is smaller than the arc length of the first semicircular through hole, and the fixing platform is provided on at least one side of the first base body.

[0017] Beneficial effects of the utility model:

[0018] 1. The utility model provides a Hall current sensor. By designing an open locking structure, the Hall current sensor is easy to open during installation. At the same time, after installation, the upper and lower bases can be tightly closed without affecting the conduction performance of the magnetic circuit, thereby improving the current detection accuracy of the Hall current sensor.

[0019] 2. The utility model provides a fixing platform on the periphery of the measuring hole of the Hall current sensor, which facilitates the positioning and fixing of the wire and the sensor, and avoids measurement errors caused by deviation of the wire position and direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The features and advantages of the present invention will be more clearly understood by referring to the accompanying drawings, which are schematic and should not be construed as limiting the present invention in any way. In the accompanying drawings:

[0021] Figure 1 A side view of a first substrate is shown;

[0022] Figure 2 A side view of a second substrate is shown;

[0023] Figure 3 shows a side view of a Hall current sensor;

[0024] Figure 4 A perspective view of a first substrate is shown;

[0025] Figure 5 A perspective view of a second substrate is shown;

[0026] Figure 6 Shows a three-dimensional diagram of a Hall current sensor;

[0027] Figure 7 The bottom structure of the first substrate is shown. DETAILED DESCRIPTION

[0028] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0029] like Figure 1-7 As shown, an embodiment of the present invention provides a Hall current sensor, including: a first substrate 100 with a first semicircular magnetic core 310, a Hall element 400 and a PCB board built in, a first semicircular through hole 130 is provided on the top of the first substrate 100, and a fixing platform 120 is protruding from the first substrate 100 at the bottom outside the first semicircular through hole 130, which is used to bind the wire to the Hall current sensor to fix its position and direction, facilitate installation, and improve the current collection accuracy.

[0030] Mounting holes 110 are provided on both sides of the bottom of the first substrate 100 for mounting and fixing the Hall current sensor. Concave arc-shaped portions 140 are provided on both side walls of the first substrate 100 above the mounting holes 110. Openings are provided at the top and bottom of the first substrate 100.

[0031] The first semicircular magnetic core 310 is installed into the first base 100 through the opening at the top of the first base 100, and then the first semicircular magnetic core 310 is fixed inside by glue from the opening at the bottom of the first base 100, so that the first semicircular magnetic core 310 is embedded in the outer periphery of the first semicircular through hole 130.

[0032] The Hall effect element 400 is mounted in the second end of the top of the first base 100, located at the upper right end of the first semi-circular magnetic core 310. The PCB connection wires 181 are led out of the bottom opening of the first base 100 and secured by the base 180 to prevent breakage. Once the first semi-circular magnetic core 310, Hall effect element 400, and PCB are in place, hot melt adhesive is filled into the interior of the first base 100 through the bottom opening 190 to achieve a secure seal.

[0033] The second base 200 is rotatably installed on the top of the first base 100, and the second base 200 has a second semicircular magnetic core 320 built in. The second base 200 has a second semicircular through hole 250 at the bottom. The first semicircular through hole 130 and the second semicircular through hole 250 are combined to form a measurement installation hole for the wire.

[0034] The second base 200 has an opening at the bottom, and the second semi-circular magnetic core 320 is installed in the second base 200 through the opening at the bottom of the second base 200. The second semi-circular magnetic core 320 is embedded in the outer circumference of the second semi-circular through-hole 250. An arc-shaped opening 210 is provided on the outer wall of the second base 200. The arc-shaped opening 210 is located at the outer circumference of the second semi-circular magnetic core 320. After the second semi-circular magnetic core 320 is installed in the second base 200 through the opening at the bottom of the second base 200, the second semi-circular magnetic core 320 is glued and fixed in the second base 200 through the arc-shaped opening 210. Finally, hot melt adhesive is filled into the interior of the second base 200 through the arc-shaped opening 210 to achieve a solid seal.

[0035] A first hinge axis 150 is protruding from the center of the first end of the top of the first base 100, and a turntable 160 is protruding from the center of the second end of the top of the first base 100. The turntable 160 has elastically retractable movable column heads 170, and the movable column heads 170 on both sides protrude from the turntable 160 by a certain distance.

[0036] Correspondingly, second hinge shafts 230 are protruding on both sides of the first end of the bottom of the second base 200, and the axial directions of the hinge shafts and the movable column head 170 are parallel to the axial direction of the measuring mounting hole; the second hinge shaft 230 is sleeved on both sides of the first hinge shaft 150 and is rotatably connected through a rotating shaft; snap plates are provided on both sides of the center of the second end of the bottom of the second base 200, and the snap plates are located on both sides of the turntable 160. A snap hole 240 is formed through the snap plate, and the movable column head 170 is snapped into the snap hole 240, thereby realizing the rotational opening and closing assembly of the first base 100 and the second base 200, so that the Hall current sensor is easy to open during installation, and the upper and lower bases can be tightly closed after the installation is completed, without affecting the conduction performance of the magnetic circuit, thereby improving the current detection accuracy of the Hall current sensor.

[0037] A holding portion 220 is protruding from the second base 200 at the upper end of the snap plate to facilitate opening the Hall current sensor. At the same time, 131 is provided on the first base 100 around the first semicircular through hole 130, and a second inclined platform 251 is provided on the second base 200 around the second semicircular through hole 250 to avoid cutting and wearing the surface of the wire.

[0038] The fixing platform 120 is distributed along the circumference of the first semicircular through hole 130. When the wire is inserted into the measurement installation hole, it is convenient to fix the wire on the fixing platform 120 to avoid measurement errors caused by deviation of the wire position and direction.

[0039] Specifically, the fixing platform 120 extends vertically outward from the 131 for a certain distance. The radius of the fixing platform 120 is consistent with that of the first semicircular through hole 130. A bending limit strip 121 is provided on the outer periphery of the fixing platform 120. After the wire is inserted into the measuring mounting hole, the direction is adjusted and the wire is fixed to the fixing platform 120 by a cable tie or the like. The bending limit strip 121 can limit the position of the cable tie to prevent it from falling.

[0040] The arc length of the fixing platform 120 is smaller than the arc length of the first semicircular through hole 130 , which facilitates the fixing of thin wires.

[0041] As described above, the present invention provides a Hall effect current sensor. By designing an open locking structure, the sensor can be easily opened during installation. Once installed, the upper and lower bases can be tightly closed, without affecting the conductivity of the magnetic circuit and improving the current detection accuracy of the Hall effect current sensor. Furthermore, the present invention provides a fixing platform around the periphery of the Hall effect current sensor's measuring hole, facilitating the positioning and securing of the wires and sensor, while also avoiding measurement errors caused by deviations in the wire's position and direction.

[0042] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations shall fall within the scope defined by the appended claims.

Claims

1. A Hall current sensor, characterized in that: include: A first substrate, which has a first semicircular ring magnetic core, a Hall element and a PCB board built in it, a first semicircular through hole is provided on the top of the first substrate, and a fixing platform is protruded on the first substrate at the bottom outside the first semicircular through hole, and the fixing platform is distributed along the circumference of the first semicircular through hole; The second base is rotatably installed on the top of the first base, the second base has a second semicircular ring core built in, and the bottom of the second base is provided with a second semicircular through hole, and the first semicircular through hole and the second semicircular through hole are combined to form a measurement installation hole for the wire.

2. The Hall current sensor according to claim 1, characterized in that: Mounting holes are formed on both sides of the bottom of the first base body. Concave arc portions are formed on both side walls of the first base body above the mounting holes. Openings are formed on the top and bottom of the first base body.

3. The Hall current sensor according to claim 2, characterized in that: A first hinge axis is protruded from the center of the first end of the top of the first base body, and a turntable is protruded from the center of the second end of the top of the first base body. A movable column head is elastically retracted in the turntable, and the movable column heads on both sides protrude from the turntable by a certain distance.

4. The Hall current sensor according to claim 3, characterized in that: The first semicircular magnetic core is installed in the first substrate through the opening at the top of the first substrate, and the first semicircular magnetic core is embedded in the outer periphery of the first semicircular through hole. The Hall element is installed in the second end of the top of the first substrate and is located at the upper end of the first semicircular magnetic core. The connecting wire of the PCB board is led out from the opening at the bottom of the first substrate, and the interior of the first substrate is filled with hot melt adhesive.

5. The Hall current sensor according to claim 4, characterized in that: The second base body is provided with an opening at the bottom, the second semicircular magnetic core is installed in the second base body through the opening at the bottom of the second base body, and the second semicircular magnetic core is embedded in the outer periphery of the second semicircular through hole.

6. The Hall current sensor according to claim 5, characterized in that: Second hinge shafts are protruding on both sides of the first end of the bottom of the second base body, and the axial directions of the hinge shafts and the movable column head are parallel to the axial direction of the measuring mounting hole; the second hinge shafts are sleeved on both sides of the first hinge shaft and are rotatably connected through a rotating shaft; snap plates are provided on both sides of the center of the second end of the bottom of the second base body, and the snap plates are located on both sides of the turntable. A snap hole is penetrated through the snap plate, and the movable column head is snap-connected in the snap hole.

7. The Hall current sensor according to claim 6, characterized in that: An arc-shaped opening is provided on the outer wall of the second base body. The arc-shaped opening is located at the outer periphery of the second semi-circular magnetic core. The second semi-circular magnetic core is fixed in the second base body through the arc-shaped opening.

8. The Hall current sensor according to claim 7, characterized in that: A holding portion is protruding from the second base body on the upper end of the snap plate.

9. The Hall current sensor according to claim 8, characterized in that: A first inclined platform is provided on the first base at the outer periphery of the first semicircular through hole, and a second inclined platform is provided on the second base at the outer periphery of the second semicircular through hole. The fixed platform extends vertically outward from the first inclined platform for a certain distance. The fixed platform has the same radius as the first semicircular through hole, and a bending limit strip is provided at the outer periphery of the fixed platform.

10. The Hall current sensor according to claim 9, characterized in that: The arc length of the fixing platform is smaller than the arc length of the first semicircular through hole, and the fixing platform is provided on at least one side of the first base body.

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