CN219799590U - Acquisition equipment based on integrated series Hall current - Google Patents

Abstract

The utility model relates to the technical field of combined Hall current collection, in particular to collection equipment based on integrated serial Hall current, which comprises a current collection box and a circuit control board, wherein the circuit control board is fixed in the current collection box, a Hall current sensor, a filter, an amplifier, a central control unit and a current collection module are arranged on the circuit control board, a shielding layer is inlaid on the inner wall of the current collection box, and a protective shell with an open end at the right end is fixed at the front end of the current collection box; according to the utility model, the shielding layer is embedded on the inner wall of the current collection box, so that the shielding layer is beneficial to shielding external unnecessary electromagnetism, so that the external electromagnetic interference is prevented from affecting the normal operation of the Hall current sensor, the collection accuracy of Hall current is ensured, the filter is arranged to eliminate unnecessary current at the connection part of the circuit to be detected and the equipment, and the interference current is eliminated, so that the error in Hall current collection and detection is effectively reduced.

Description

Acquisition equipment based on integrated series Hall current

Technical Field

The utility model relates to the technical field of Hall current acquisition, in particular to acquisition equipment based on integrated series Hall current.

Background

According to the hall effect principle, a current Ic is fed from the control current side of the hall element and a magnetic field of magnetic field strength B is applied in the direction normal to the plane of the hall element, and then a potential VH is generated perpendicular to the current and to the magnetic field direction (i.e. between the hall output sides), which is called hall potential, the magnitude of which is proportional to the product of the control current I and the magnetic field strength B. Namely, in the formula: k is a Hall coefficient and is determined by the material of the Hall element; i is control current; b is the magnetic field intensity; VH is hall potential; in the detection process of various circuits, the series-connected Hall currents are often collected through the collection equipment, and then the sizes of the Hall currents are detected.

The existing collection equipment based on integrated series Hall current generally detects series Hall current through a Hall current sensor, and because the Hall current sensor is a magneto-electric conversion device made of semiconductor materials, in the current collection and detection process, if electromagnetic shielding performance outside collection is poor, external electromagnetic is easy to interfere with the collection accuracy of the Hall current, and after a circuit to be detected is connected with the equipment, unnecessary interference current can be generated at a connection part, if the interference current is not effectively eliminated, larger errors can be caused in the collection and detection of the Hall current.

Disclosure of Invention

The utility model provides an integrated series Hall current-based acquisition device, which is beneficial to effectively reducing electromagnetic interference generated by external electromagnetism to a Hall current sensor, ensuring the acquisition accuracy of Hall current and reducing errors generated by Hall current acquisition and detection.

In order to solve the problems in the prior art, the utility model discloses an integrated series Hall current-based acquisition device, which comprises a current acquisition box and a circuit control board, wherein the circuit control board is fixed in the current acquisition box;

the circuit control board is provided with a Hall current sensor, a filter, an amplifier, a central control unit and a current acquisition module, and the inner wall of the current acquisition box is embedded with a shielding layer;

the current collection box front end is fixed with the right-hand member and is the protecting crust of open end, be equipped with control panel in the protecting crust, control panel front end meets and has the display screen, the control panel left side is equipped with spacing subassembly.

Further, the shielding layer is made of silver-based conductive filler.

Further, the upper end of the current collection box is connected with a patch board, and a plurality of electrical testing interfaces are arranged on the patch board.

Further, the right end of the control panel is fixedly provided with a cover plate covered on the right end of the protective shell, the lower end of the left wall in the protective shell is fixedly provided with a telescopic shaft, the right end of the telescopic shaft is connected to the left side of the cover plate, and the right side of the cover plate is fixedly provided with a handle.

Further, the limiting component comprises a spring return force rod, a limiting rod and a semicircular lug, wherein the spring return force rod is fixed at the left upper end of the control panel, the limiting rod is fixed at the upper end of the spring return force rod, and the semicircular lug is connected to the upper end of the limiting rod.

Further, the left side of the upper end of the protective shell is communicated with a left limit hole, the right wall in the left limit hole is inclined, the right side of the upper end of the protective shell is provided with a right limit hole, the right limit Kong Nazuo wall is inclined, the left limit hole and the right limit hole are matched with the limit rod, and the limit rod is inserted out of the left limit hole upwards.

Compared with the prior art, the utility model has the beneficial effects that:

1. the shielding layer is embedded on the inner wall of the current collection box and is made of silver conductive filler with good electromagnetic shielding performance, so that unnecessary external electromagnetism is shielded, the external electromagnetic interference is prevented from affecting the normal operation of the Hall current sensor, and the collection accuracy of Hall current is ensured;

2. the filter is arranged to eliminate unnecessary current at the connection part of the circuit to be detected and the equipment, so that interference current is eliminated, and the error of Hall current acquisition and detection is effectively reduced;

3. the control panel and the display screen are stored in the protective shell, so that the idle control panel and the display screen are prevented from being exposed outside for a long time and damaged by impact, and the cover plate covers the opening end of the protective shell, so that the control panel and the display screen in the protective shell are protected from dust.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of the overall external structure of the present utility model;

FIG. 3 is a schematic diagram of the internal structure of the protective shell according to the present utility model.

In fig. 1-3: the device comprises a current collection box 1, a protective shell 2, a control panel 3, a display screen 4, a cover plate 5, a handle 6, a telescopic shaft 7, a spring return rod 8, a left limit hole 9, a limit rod 10, a semicircular lug 11, a right limit hole 12, a patch panel 13, a circuit control board 14, a Hall current sensor 15, a shielding layer 16, a filter 17, an amplifier 18, a central control unit 19 and a current collection module 20.

Detailed Description

Acquisition equipment based on integrated series Hall current:

as shown in fig. 1, the embodiment includes a current collection box 1 and a circuit control board 14, the circuit control board 14 is fixed in the current collection box 1, a hall current sensor 15, a filter 17, an amplifier 18, a central control unit 19 and a current collection module 21 are mounted on the circuit control board 14, a shielding layer 16 is inlaid on the inner wall of the current collection box 1, the shielding layer 16 is made of silver conductive filler, an electrical plug board 13 is connected to the upper end of the current collection box 1, and a plurality of electrical measurement interfaces are opened on the electrical plug board 13;

when the device is used for collecting and detecting the series Hall current, the circuit to be detected is connected with the electric measuring interface on the patch board 13, the current is detected through the Hall current sensor 15, if the detected current is smaller, the voltage or power of an input signal is amplified through the amplifier 18, then the measured Hall current data are collected by the current collecting module 20, finally the data are transmitted to the display screen 4 for display through the designated signal sent by the central control unit 19, and the shielding layer 16 is inlaid on the inner wall of the current collecting box 1, and the shielding layer 16 is made of silver conductive filler with better electromagnetic shielding performance, so that the shielding is facilitated to shield the outside unnecessary electromagnetic, the normal work of the Hall current sensor 15 is avoided from the outside electromagnetic interference, and the collecting accuracy of the Hall current is ensured.

As shown in fig. 1, in the present embodiment, the circuit control board 14 is provided with a hall current sensor 15, a filter 17, an amplifier 18, a central control unit 19 and a current collection module 21;

when the circuit to be detected and the equipment connection part generate interference current, in order to prevent the partial current from interfering the normal collection and detection of the Hall current, unnecessary current of the circuit to be detected and the equipment connection part is eliminated by arranging the filter 17, so that the interference current is eliminated, errors in the collection and detection of the Hall current are effectively reduced, and the collection accuracy of the Hall current is better ensured.

As shown in fig. 1-3, in this embodiment, a protecting case 2 with an open-ended right end is fixed at the front end of the current collecting box 1, a control panel 3 is disposed in the protecting case 2, a display screen 4 is connected to the front end of the control panel 3, a limit component is disposed on the left side of the control panel 3, a cover plate 5 covering the right end of the protecting case 2 is fixed at the right end of the control panel 3, a telescopic shaft 7 is fixed at the lower end of the left wall in the protecting case 2, the right end of the telescopic shaft 7 is connected to the left side of the cover plate 5, a handle 6 is fixed on the right side of the cover plate 5, the limit component includes a spring return rod 8, a limit rod 10 and a semicircular bump 11, the spring return rod 8 is fixed on the left upper end of the control panel 3, the semicircular bump 11 is connected to the upper end of the limit rod 10, a left limit hole 9 is penetrated on the left side of the upper end of the protecting case 2, the left wall and the right wall of the left limit hole 9 are inclined, the right wall of the protecting case 2 is inclined, the left limit rod 12 and the right limit hole 12 are inclined, and the limit hole 12 is matched with the left limit hole 12 and the right limit hole 12;

when control panel 3 and display screen 4 are idle, and gag lever post 10 is down the prerequisite of inserting left spacing hole 9 upward, at this moment control panel 3 can't remove in protection shell 2, so can be stable accomodate control panel 3 and display screen 4 and deposit to protection shell 2 in, in order to avoid idle control panel 3 and display screen 4 expose outside and receive the striking damage for a long time, and cover the open end of protection shell 2 with apron 5, do benefit to control panel 3 and display screen 4 in protection shell 2 and carry out dustproof protection, when control panel 3 and display screen 4 need be used, press down semicircle lug 11, gag lever post 10 and spring return force pole 8 down, semicircle lug 11 can down shift into left spacing hole 9 after the shrink of spring return force pole 8, because the right wall is the slope form in the left spacing hole 9, so hold handle 6 and pull apron 5 to the right, control panel 3 and spacing subassembly, semicircle lug 11 can slide out left spacing hole 9 along the inclined plane of left spacing hole 9 inner wall at this moment, thereby make gag lever post 10 and semicircle lug 11 all shift out left spacing hole 9, when need to use control panel 3 and display screen 4 to be used, can drive the control panel 7 and the flexible hole 3 and take over by force of extension shaft 3 and display screen 4, thereby can be moved out the time when control panel 2 and display screen 4 is stretched out and take over by force to the control panel 3, can be moved down by the control panel 2, and take over the time, and control panel 12 is moved down and can be moved down by the control panel 2, and the control panel 2 is moved down to the control panel is moved down, and the data is convenient to be moved down, and the control panel is moved down, and is moved down to the control panel is moved down, and is moved down.

Claims (6)

1. The utility model provides a collection equipment based on integration series connection hall current, includes current collection case (1) and circuit control board (14), circuit control board (14) are fixed in current collection case (1), its characterized in that:

the Hall current sensor (15), the filter (17), the amplifier (18), the central control unit (19) and the current acquisition module (21) are arranged on the circuit control board (14), and a shielding layer (16) is inlaid on the inner wall of the current acquisition box (1);

the current collection box (1) front end is fixed with right-hand member is protecting crust (2) of open end, be equipped with control panel (3) in protecting crust (2), control panel (3) front end meets and has display screen (4), control panel (3) left side is equipped with spacing subassembly.

2. The integrated series hall current-based acquisition device of claim 1, wherein: the shielding layer (16) is made of a silver-based conductive filler.

3. The integrated series hall current-based acquisition device of claim 1, wherein: the upper end of the current collection box (1) is connected with a patch board (13), and a plurality of electricity measuring interfaces are arranged on the patch board (13).

4. The integrated series hall current-based acquisition device of claim 1, wherein: the control panel (3) right-hand member is fixed with apron (5) that cover in protecting crust (2) right-hand member, the lower extreme of left wall is fixed with telescopic shaft (7) in protecting crust (2), telescopic shaft (7) right-hand member meet in apron (5) left side, apron (5) right side is fixed with handle (6).

5. The integrated series hall current-based acquisition device of claim 1, wherein: the limiting component comprises a spring return force rod (8), a limiting rod (10) and a semicircular lug (11), wherein the spring return force rod (8) is fixed at the left upper end of the control panel (3), the limiting rod (10) is fixed at the upper end of the spring return force rod (8), and the semicircular lug (11) is connected to the upper end of the limiting rod (10).

6. The integrated series hall current-based acquisition device of claim 5, wherein: the left side of protecting crust (2) upper end has link up left spacing hole (9), right wall is the slope form in left spacing hole (9), right spacing hole (12) are opened on protecting crust (2) upper end right side, left wall is the slope form in right spacing hole (12), left spacing hole (9) with right spacing hole (12) all with gag lever post (10) phase-match, gag lever post (10) are upwards threaded out left spacing hole (9).