Auxiliary switching device

Abstract

The embodiment of the utility model discloses an auxiliary switching device which is used for auxiliary calibration of a current sensor, and the current sensor comprises four pins. The auxiliary switching device comprises a signal input end, a line conversion module and a signal output end; the signal input end comprises a four-core plug and a four-port wiring terminal; the line conversion module comprises a line control switch; the four-core plug is electrically connected with the first input end of the line conversion module; the four-port wiring terminal is electrically connected with the second input end of the circuit conversion module; the output end of the line conversion module is electrically connected with the signal output end; the signal input end is electrically connected with a current sensor; the signal output end is used for being electrically connected with a calibration source and a universal meter. By adopting the above technical scheme, rapid, convenient and safe wiring switching can be carried out on the current sensor, the structure is simple, the cost is low, the size is small, the device is portable, and the calibration efficiency can be effectively improved.

Description

Technical Field

[0001] The embodiment of the utility model relates to the technical field of electromagnetic measurement, and in particular to an auxiliary switching device. Background Art

[0002] Hall current sensors are mainly suitable for the isolation and conversion of complex signals such as AC, DC, and pulses, and are used for current monitoring and battery applications. Their characteristics make them suitable for testing high-precision DC current, high-speed transient current detection, and large current pulse testing. Hall current sensors commonly used in aviation generally have four wiring pins, two of which are connected to a ±12 to ±15 volt calibration source to power the current sensor, and the other two pins are connected to a digital multimeter to detect the output voltage. Before calibrating the Hall current sensor, these four wiring pins need to be connected to the corresponding equipment respectively.

[0003] The Hall current sensors currently used on airplanes are generally divided into two situations before being sent for calibration: one is a newly purchased current sensor that has not been unpacked, and its four pins are protected by shielded wires and enameled wires; the other is a current sensor in use, and its four pins are welded to the pins of a four-hole aviation plug. During calibration, the wiring pins of the Hall current sensor do not match the wiring connectors of the calibration source and the digital multimeter, so the three cannot be directly connected.

[0004] Therefore, how to safely and conveniently connect the current sensor, the calibration source, and the multimeter in both of the above situations is a technical problem that needs to be solved urgently. Utility Model Content

[0005] The utility model provides an auxiliary switching device to realize the rapid and safe connection of a current sensor, a calibration source and a multimeter.

[0006] The utility model embodiment provides an auxiliary switching device for assisting in calibrating a current sensor, wherein the current sensor comprises four pins; the auxiliary switching device comprises a signal input terminal, a line conversion module and a signal output terminal;

[0007] The signal input end includes a four-core plug and a four-port terminal block; the line conversion module includes a line control switch;

[0008] The four-core plug is electrically connected to the first input end of the circuit conversion module; the four-port wiring terminal is electrically connected to the second input end of the circuit conversion module; the output end of the circuit conversion module is electrically connected to the signal output end;

[0009] The signal input terminal is used to be electrically connected to the current sensor; the signal output terminal is used to be electrically connected to a calibration source and a multimeter.

[0010] Optionally, the four-port terminal block includes a spring terminal block and a spring button.

[0011] Optionally, the signal output end includes four banana sockets.

[0012] Optionally, the line conversion module further includes a hanging end;

[0013] The line control switch includes a switch dial, a first position, a second position and a third position;

[0014] When the switch key is located at the first position, the first input end of the line conversion module is electrically connected to the output end of the line conversion module;

[0015] When the switch key is located at the second position, the second input end of the circuit conversion module is electrically connected to the output end of the circuit conversion module;

[0016] When the switch dial is located at the third position, the suspended end of the line conversion module is electrically connected to the output end of the line conversion module.

[0017] Optionally, the auxiliary adapter device includes a housing;

[0018] The shell comprises a polyhedron consisting of six faces; the polyhedron comprises an upper surface, a lower surface, and a first surface, a second surface, a third surface and a fourth surface located between the upper surface and the lower surface; wherein the lower surface is located on a side of the upper surface close to the ground;

[0019] The four-core plug, the four-port wiring terminal, the signal output end and the line control switch are respectively located on different surfaces of the shell except the lower surface.

[0020] Optionally, the shell includes a cube.

[0021] Optionally, the first surface is adjacent to the second surface and the fourth surface respectively;

[0022] The four-port terminal block is located on the second surface; the four-core plug is located on the fourth surface;

[0023] The line control switch is located on the upper surface; the signal output end is located on the first surface or the third surface.

[0024] Optionally, the auxiliary adapter device further includes a suction cup;

[0025] The suction cup is located on the lower surface.

[0026] Optionally, the first surface and the second surface, the second surface and the third surface, the third surface and the fourth surface, and the fourth surface and the first surface are all connected by curved surfaces.

[0027] Optionally, the upper surface is connected to the first surface, the second surface, the third surface, and the fourth surface at right angles;

[0028] And / or, the lower surface is connected to the first surface, the second surface, the third surface, and the fourth surface at right angles.

[0029] The utility model can adapt to current sensors in different situations by arranging a signal input end including a four-core plug and a four-port wiring terminal; the four-core plug is connected to the signal output end, or the four-port wiring terminal is connected to the signal output end through a line conversion module and a line control switch thereof, so as to realize auxiliary connection between the current sensor and a calibration source, as well as a multimeter; the auxiliary adapter has the function of quickly and safely connecting the current sensor to a multifunctional calibration source and a digital multimeter, can quickly, conveniently and safely connect the current sensor, and has a simple structure, low cost, small size and portability, and can effectively improve the calibration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of an auxiliary switching device provided by an embodiment of the utility model;

[0031] Figure 2 It is a structural schematic diagram of another auxiliary switching device provided by an embodiment of the utility model;

[0032] Figure 3 It is a structural schematic diagram of another auxiliary switching device provided by an embodiment of the utility model;

[0033] Figure 4 This is a schematic diagram of the structure of a four-port terminal block provided by an embodiment of the utility model;

[0034] Figure 5 It is a structural schematic diagram of a signal output terminal provided by an embodiment of the utility model;

[0035] Figure 6 It is a structural schematic diagram of a line control switch provided by an embodiment of the utility model.

[0036] Among them, in the embodiments of the present utility model, the figure numerals and the corresponding feature names are:

[0037] 10-signal input terminal, 11-four-core plug, 12-four-port wiring terminal, 121-spring wiring terminal, 122-spring button, 20-line conversion module, 201-first input terminal, 202-second input terminal, 203-output terminal, 204-hanging end, 21-line control switch, 211-switch dial key, 30-signal output terminal, 40-housing, 50-suction cup, S1-first surface, S2-second surface, S4-fourth surface, SS-upper surface, SX-lower surface, ON1-first position, ON2-second position, OFF-third position. DETAILED DESCRIPTION

[0038] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0039] An auxiliary adapter is used for assisting in calibrating a current sensor. The current sensor comprises four pins; the auxiliary adapter comprises a signal input end, a line conversion module and a signal output end; the signal input end comprises a four-core plug and a four-port wiring terminal; the line conversion module comprises a line control switch; the four-core plug is electrically connected to a first input end of the line conversion module; the four-port wiring terminal is electrically connected to a second input end of the line conversion module; the output end of the line conversion module is electrically connected to a signal output end; the signal input end is used to be electrically connected to the current sensor; and the signal output end is used to be electrically connected to a calibration source and a multimeter.

[0040] The above is the core idea of ​​this application. The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. It should be noted that the directional words such as "upper", "lower", "left", "right" and the like described in the embodiments of the present invention are described at the angles shown in the accompanying drawings and should not be understood as limitations on the embodiments of the present invention. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is formed "on" or "under" another element, it can not only be directly formed "on" or "under" another element, but also indirectly formed "on" or "under" another element through an intermediate element. The terms "first", "second" and the like are only used for descriptive purposes and do not represent any order, quantity or importance, but are only used to distinguish different components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0042] Figure 1 : is a schematic diagram of the structure of an auxiliary switching device provided by an embodiment of the utility model, the auxiliary switching device is used to assist in calibrating the current sensor. Figure 1 The auxiliary switching device includes a signal input terminal 10, a line conversion module 20 and a signal output terminal 30. The signal input terminal 10 includes a four-core plug 11 and a four-port wiring terminal 12, and the line conversion module 20 includes a line control switch 21. The four-core plug 11 is electrically connected to the first input terminal 201 of the line conversion module 20, the four-port wiring terminal 12 is electrically connected to the second input terminal 202 of the line conversion module 20, and the output terminal 203 of the line conversion module 20 is electrically connected to the signal output terminal 30. Among them, the signal input terminal 10 is used to be electrically connected to the current sensor (not shown in the figure), and the signal output terminal 30 is used to be electrically connected to the calibration source and the multimeter (not shown in the figure).

[0043] Exemplarily, the current sensor includes four pins. When the current sensor is in use, the four pins of the current sensor are welded to the pins of the four-core aviation plug. When calibrating, the four-core aviation plug electrically connected to the current sensor can be plugged into the four-core plug 11 of the auxiliary adapter; the line control switch 21 can selectively connect the first input terminal 201 and the output terminal 203, and the current sensor can be electrically connected to the calibration source and the multimeter through the auxiliary adapter. When the current sensor is not in use, the four pins of the current sensor can be connected to the four-port terminal 12; the line control switch 21 can selectively connect the second input terminal 202 and the output terminal 203, and the current sensor can be electrically connected to the calibration source and the multimeter through the auxiliary adapter.

[0044] The auxiliary adapter provided by the embodiment of the utility model can adapt to current sensors in different situations by setting a signal input end including a four-core plug and a four-port wiring terminal; the four-core plug is connected to the signal output end, or the four-port wiring terminal is connected to the signal output end through a line conversion module and its line control switch, so as to realize the auxiliary connection between the current sensor and the calibration source, and the multimeter; the auxiliary adapter has the function of quickly and safely connecting the current sensor to the multi-functional calibration source and the digital multimeter, and can perform fast, convenient and safe wiring adapter for the current sensor, and has a simple structure, low cost, small size and portability, and can also effectively improve the calibration efficiency.

[0045] Optional, Figure 2 It is a structural schematic diagram of another auxiliary switching device provided by an embodiment of the utility model. Figure 3 This is a schematic diagram of the structure of another auxiliary switching device provided by the embodiment of the utility model, referring to Figure 1-Figure 3 The auxiliary switching device includes a housing 40, which includes a polyhedron composed of six faces, including an upper surface SS, a lower surface SX, and a first surface S1, a second surface S2, a third surface (not shown in the figure), and a fourth surface S4 located between the upper surface SS and the lower surface SX; wherein the lower surface SX is located on the side of the upper surface SS close to the ground. The four-core plug 11, the four-port terminal 12, the signal output terminal 30, and the line control switch 21 are respectively located on different surfaces of the housing 40 except the lower surface SX.

[0046] Exemplarily, during calibration, the signal input terminal 10 of the auxiliary adapter is electrically connected to the current sensor, the signal output terminal 30 of the auxiliary adapter is electrically connected to the calibration source and the multimeter, and the current sensor, the auxiliary adapter, the calibration source and the multimeter are all placed on the desktop, and the lower surface SX is located on the side of the upper surface SS close to the desktop. The four-core plug 11, the four-port wiring terminal 12, the signal output terminal 30 and the line control switch 21 are respectively located on different surfaces of the housing 40 except the lower surface SX, so that the four-core plug 11, the four-port wiring terminal 12, and the signal output terminal 30 are easy to plug and unplug, and the line control switch 21 is easy to adjust.

[0047] In an optional embodiment, the housing 40 includes a cube.

[0048] Optional, Figure 4 This is a schematic diagram of the structure of a four-port terminal block provided by the present utility model. Figure 2-Figure 4 The four-port terminal block 12 includes a spring terminal block 121 and a spring button 122 .

[0049] Exemplarily, when the pins of the current sensor are connected to the four-pin terminal 12 , the spring of the spring terminal 121 can be controlled by pressing the spring button 122 , which is helpful to tightly fix the pins of the current sensor in the spring terminal 121 .

[0050] Optional, Figure 5 This is a schematic diagram of a signal output terminal provided by an embodiment of the utility model, referring to Figure 2 , Figure 3 and Figure 5 The signal output terminal 30 includes four banana sockets with a specification of φ6mm. The four banana sockets are shown in the figure. V+ represents the positive power supply terminal of the current sensor, V- represents the negative power supply terminal of the current sensor, OUT represents the input terminal of the multimeter, and GND represents the ground terminal.

[0051] Optional, Figure 6 This is a schematic diagram of the structure of a line control switch provided by an embodiment of the utility model, referring to Figure 1 , Figure 2 and Figure 6 , the line conversion module 20 also includes a hanging end 204; the line control switch 21 includes a switch dial key 211, a first position ON1, a second position ON2 and a third position OFF; when the switch dial key 211 is located at the first position ON1, the first input end 201 of the line conversion module 20 is electrically connected to the output end 203 of the line conversion module 20; when the switch dial key 211 is located at the second position ON2, the second input end 202 of the line conversion module 20 is electrically connected to the output end 203 of the line conversion module 20; when the switch dial key 211 is located at the third position OFF, the hanging end 204 of the line conversion module 20 is electrically connected to the output end 203 of the line conversion module 20.

[0052] For example, when the four-core aviation plug electrically connected to the current sensor is plugged into the four-core plug 11 of the auxiliary adapter, the wave switch key 211 can be turned to the first position ON1; when the four pins of the current sensor are connected to the four-port terminal 12, the wave switch key 211 can be turned to the second position ON2; when the signal input terminal 10 is not connected to the current sensor, the wave switch key 211 can be turned to the third position OFF.

[0053] Optional, continue to refer to Figure 2 and Figure 3 The first surface S1 is adjacent to the second surface S2 and the fourth surface S4 respectively; the four-port terminal 12 is located on the second surface S2; the four-core plug 11 is located on the fourth surface S4; the line control switch 21 is located on the upper surface SS; the signal output terminal 30 is located on the first surface S1 or the third surface.

[0054] Specifically, the second surface S2 and the fourth surface S4 are arranged oppositely, the first surface S1 and the third surface are arranged oppositely, and the first surface S1 is located between the second surface S2 and the fourth surface S4, and the third surface is also located between the second surface S2 and the fourth surface S4. The line control switch 21 is arranged on the upper surface SS, which is conducive to regulating the line control switch 21; the four-port wiring terminal 12 and the four-core plug 11 are arranged on two opposite surfaces, which is conducive to connecting current sensors in different situations; the signal output terminal 30 is arranged on the surface between the four-port wiring terminal 12 and the four-core plug 11, which is conducive to simplifying the internal circuit design.

[0055] Optional, continue to refer to Figure 3 The auxiliary adapter device further includes a suction cup 50; the suction cup is located on the lower surface SX. In this way, when the auxiliary adapter device is placed on the desktop, the suction cup 50 of the auxiliary adapter device is conducive to fixing the auxiliary adapter device, and when the four-port terminal 12 is connected to the pins of the current sensor, the auxiliary adapter device can be prevented from moving, pulling the pins of the current sensor, and damaging the current sensor.

[0056] Optional, continue to refer to Figure 2 and Figure 3 The first surface S1 and the second surface S2, the second surface S2 and the third surface, the third surface and the fourth surface S4, and the fourth surface S4 and the first surface S1 are all connected by curved surfaces. In this way, when the auxiliary adapter is moved, it is not easy to scratch the staff, which can improve the safety of the auxiliary adapter.

[0057] Optional, continue to refer to Figure 2 and Figure 3 The upper surface SS is connected to the first surface S1, the second surface S2, the third surface, and the fourth surface S4 at right angles; and / or the lower surface SX is connected to the first surface S1, the second surface S2, the third surface, and the fourth surface S4 at right angles.

[0058] Specifically, the upper surface SS is connected to the first surface S1, the second surface S2, the third surface, and the fourth surface S4 at right angles, which is conducive to taking the mobile auxiliary adapter and avoiding the connection between the upper surface SS and the side surface being too smooth and difficult to take. The lower surface SX is connected to the first surface S1, the second surface S2, the third surface, and the fourth surface S4 at right angles, which is conducive to fixing the position of the auxiliary adapter and avoiding the connection between the lower surface SX and the side surface being too smooth and easy to flip.

[0059] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, combinations and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. An auxiliary switching device, characterized in that: Used to assist in calibrating a current sensor, the current sensor comprising four pins; the auxiliary switching device comprising a signal input terminal, a line conversion module and a signal output terminal; The signal input end includes a four-core plug and a four-port terminal block; the line conversion module includes a line control switch; The four-core plug is electrically connected to the first input end of the circuit conversion module; the four-port wiring terminal is electrically connected to the second input end of the circuit conversion module; the output end of the circuit conversion module is electrically connected to the signal output end; The signal input terminal is used to be electrically connected to the current sensor; the signal output terminal is used to be electrically connected to a calibration source and a multimeter.

2. The auxiliary switching device according to claim 1, characterized in that: The four-port wiring terminal comprises a spring wiring terminal and a spring button.

3. The auxiliary switching device according to claim 1, characterized in that: The signal output terminal includes four banana sockets.

4. The auxiliary switching device according to claim 1, characterized in that: The line conversion module also includes a hanging end; The line control switch includes a switch dial, a first position, a second position and a third position; When the switch key is located at the first position, the first input end of the line conversion module is electrically connected to the output end of the line conversion module; When the switch key is located at the second position, the second input end of the circuit conversion module is electrically connected to the output end of the circuit conversion module; When the switch dial is located at the third position, the suspended end of the line conversion module is electrically connected to the output end of the line conversion module.

5. The auxiliary switching device according to claim 1, characterized in that: The auxiliary switching device comprises a housing; The shell comprises a polyhedron consisting of six faces; the polyhedron comprises an upper surface, a lower surface, and a first surface, a second surface, a third surface and a fourth surface located between the upper surface and the lower surface; wherein the lower surface is located on a side of the upper surface close to the ground; The four-core plug, the four-port wiring terminal, the signal output end and the line control switch are respectively located on different surfaces of the shell except the lower surface.

6. The auxiliary switching device according to claim 5, characterized in that: The shell includes a cube.

7. The auxiliary switching device according to claim 5, characterized in that: The first surface is adjacent to the second surface and the fourth surface respectively; The four-port terminal block is located on the second surface; the four-core plug is located on the fourth surface; The line control switch is located on the upper surface; The signal output end is located on the first surface or the third surface.

8. The auxiliary switching device according to claim 5, characterized in that: The auxiliary adapter device also includes a suction cup; The suction cup is located on the lower surface.

9. The auxiliary switching device according to claim 5, characterized in that: The first surface and the second surface, the second surface and the third surface, the third surface and the fourth surface, and the fourth surface and the first surface are all connected by curved surfaces.

10. The auxiliary switching device according to claim 5, characterized in that: The upper surface is connected to the first surface, the second surface, the third surface, and the fourth surface at right angles; And / or, the lower surface is connected to the first surface, the second surface, the third surface, and the fourth surface at right angles.

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