CN220064112U - Wiring switching device for measuring resistance of circuit and electronic element - Google Patents

Abstract

A wiring switching device for measuring the resistance of a circuit and an electronic element comprises a plug connector matched with the circuit or the electronic element to be measured, a wiring row and a selective turn-on knob; the two selective turn-on knobs are arranged, wherein a common terminal of one selective turn-on knob is electrically connected with a black pen of the resistance meter, and a common terminal of the other selective turn-on knob is electrically connected with the red pen; the wiring row is provided with a plurality of rows of wiring posts, one end of each wiring post is in butt joint with the contact pin of the plug connector one by one through a wire, and the other end of each wiring post is in butt joint with the selection terminals on the two selection switch-on knobs one by one through a wire. The utility model can be used for quickly connecting the tested circuit and the electronic element, and can avoid misoperation. The wiring switching device is easy to operate and high in applicability, and the resistance of various circuits and electronic elements can be measured by replacing the plug-in connector. In addition, the wiring switching device can realize forward and reverse measurement of electronic elements and circuits, and greatly improves the measurement efficiency.

Description

Wiring switching device for measuring resistance of circuit and electronic element

Technical Field

The utility model relates to the field of electronic circuits, in particular to a wiring switching device for measuring the resistance of a circuit and an electronic element.

Background

Electronic components, particularly integrated modules, have many pins, and it is often necessary to use a resistance meter to measure the resistance between the pins to determine whether the electronic component is normal. For a complex circuit, the connector is provided with a plurality of pins, and the resistance value between the pins is measured by the resistance meter to judge whether the circuit is normal or not, and whether the circuit is broken or not and short circuit phenomenon occur or not. Because the pins and the pins are tiny and dense, the black and red meter pen of the resistance meter is difficult to realize one-to-one butt joint with the pin, so that time and labor are wasted in operation, and inaccurate resistance measurement or misoperation can be caused.

Since the integrated modules or circuits to be measured have a variety, a wiring switching device is required to solve the above-mentioned problems.

Disclosure of Invention

In order to overcome the defects in the background technology, the utility model discloses a wiring switching device for measuring the resistance of a circuit and an electronic element, which adopts the following technical scheme:

a wiring switching device for measuring the resistance of a circuit and an electronic element comprises a plug connector matched with the circuit or the electronic element to be measured, a wiring row and a selective turn-on knob; the two selective turn-on knobs are arranged, wherein a common terminal of one selective turn-on knob is electrically connected with a black pen of the resistance meter, and a common terminal of the other selective turn-on knob is electrically connected with the red pen; the wiring row is provided with a plurality of rows of wiring posts, one end of each wiring post is in butt joint with the contact pin of the plug connector one by one through a wire, and the other end of each wiring post is in butt joint with the selection terminals on the two selection switch-on knobs one by one through a wire.

Further improving the technical scheme, each selection terminal of the selection switch-on knob is provided with a digital number; each contact pin which is in one-to-one connection with each selection terminal is also provided with a numerical number, and the numerical number is the same as the numerical number of the corresponding selection terminal.

Further improving the technical scheme, a duplex change-over switch is connected between the common terminal of the two selective turn-on knobs and the black pen and the red pen of the resistance meter.

By adopting the technical scheme, compared with the background technology, the utility model has the following beneficial effects:

the utility model can be used for quickly connecting the tested circuit and the electronic element, and can avoid misoperation.

The wiring switching device is easy to operate and high in applicability, and the resistance of various circuits and electronic elements can be measured by replacing the plug-in connector. In addition, the wiring switching device can realize forward and reverse measurement of electronic elements and circuits, and greatly improves the measurement efficiency.

Drawings

Fig. 1 is a schematic structural view of the present utility model in embodiment 1.

Fig. 2 is a schematic structural view of the present utility model in embodiment 2.

In the figure: 1. a plug-in component; 1.1, inserting needles; 2. a wiring row; 2.1, binding posts; 3. selecting a turn-on knob; 3.1, common terminals; 3.2, selecting terminals; 4. a resistance meter; 4.1, a red pen; 4.2, black pens; 5. a wire; 6. a circuit socket; 7. a duplex change-over switch; 8. an electronic component.

Detailed Description

Preferred embodiments of the present utility model are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present utility model, and are not intended to limit the scope of the present utility model. It should be noted that, in the description of the present utility model, terms such as "front", "rear", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to be construed as limiting the present utility model. It should also be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

Example 1:

in this embodiment, the present switching device is used to measure the resistance of each wiring loop in the circuit socket. As shown in fig. 1, the present wiring switching device includes a plug 1, a wiring block 2, and a selection switch-on knob 3, and the structure and function thereof are specifically described below.

The plug connector 1 has a structure matched with the circuit socket 6, eight pins 1.1 are arranged on the plug connector 1, and the eight pins 1.1 are in one-to-one correspondence with the eight pins 1.1 of the circuit socket 6. The wiring loop on the circuit socket 6 can be led out outwards rapidly through the plug connector 1, so that subsequent measurement is facilitated, and misoperation easily occurring in the connection process can be avoided by using the plug connector 1.

The selection switch-on knob 3 has a common terminal 3.1 on the knob shaft and 12 selection terminals 3.2 on the periphery, the common terminal 3.1 being electrically connected to one of the selection terminals 3.2 by rotating the knob. The number of the selective switch-on knobs 3 is two, wherein one of the selective switch-on knobs 3 is electrically connected with the black pen 4.2 of the resistance meter 4, and the other selective switch-on knob 3 is electrically connected with the red pen 4.1.

The wiring row 2 is provided with a plurality of rows of wiring posts 2.1, one end of each wiring post 2.1 is in one-to-one butt joint with the contact pin 1.1 of the plug connector 1 through a wire 5, and the other end is in one-to-one butt joint with the selection terminals 3.2 on the two selection switch-on knobs 3 through wires 5. Thus, the eight pins 1.1 on the plug-in connector 1 are respectively electrically connected with the eight selection terminals 3.2 on the two selection switch-on knobs 3 one by one. For convenience of identification, each selection terminal 3.2 of the selection switch-on knob 3 is provided with a number of 1-8, and each contact pin 1.1 in one-to-one butt joint with each selection terminal 3.2 is also provided with a number of 1-8. In this way, the number can be used to determine which pin 1.1 is currently selected for the switch-on knob 3.

As shown in fig. 1, when the resistance between the second and sixth wires in the circuit socket 6 is measured, the knob of one of the selection turn-on knobs 3 is pointed to the number 2, the knob of the other selection turn-on knob 3 is pointed to the number 6, at this time, the black pen 4.2 of the resistance meter 4 is connected with the second wire of the circuit socket 6, and the red pen 4.1 of the resistance meter 4 is connected with the sixth wire of the circuit socket 6, so that the resistance measurement between the second wire and the sixth wire is realized. Obviously, the wiring switching device can rapidly realize the measurement of the resistance between any two wires in the circuit socket 6. It can also be seen that the applicability of the present wiring switching device is strong, and the measurement of various circuit resistances can be achieved by replacing the plug connector 1.

Example 2:

as shown in fig. 2, in the present embodiment, the present switching device is used to measure the resistance between the pins of the electronic component 8. Specifically, the electronic component 8 has six pins, and the connector 1 has pins 1.1 corresponding to the six pins of the electronic component 8.

For some electronic components 8, the pins have an on state and an off state, and if the resistor 4 shows a low resistance, the resistor 4 may show a high resistance after the black pen 4.2 and the red pen 4.1 are exchanged. To solve this problem, a duplex changeover switch 7 is connected between the common terminal 3.1 of the two selection switch-on knobs 3 and the black pens 4.2 and red pens 4.1 of the resistance meter 4.

As shown in fig. 2, when the duplex changeover switch 7 is turned on upwards, the red pen 4.1 is connected to the common terminal 3.1 of the upper selective turning knob 3, the black pen 4.2 is connected to the common terminal 3.1 of the lower selective turning knob 3, at this time the red pen 4.1 is connected to the second pin of the electronic component 8, and the black pen 4.2 is connected to the sixth pin of the electronic component 8. When the duplex switch 7 is turned on downwards, the red pen 4.1 is connected with the public terminal 3.1 of the lower selective turn-on knob 3, the black pen 4.2 is connected with the public terminal 3.1 of the upper selective turn-on knob 3, at this time, the red pen 4.1 is connected with the sixth pin of the electronic element 8, the black pen 4.2 is connected with the second pin of the electronic element 8, and the exchange between the black pen 4.2 and the red pen 4.1 is realized. Obviously, this switching improves the efficiency of the forward and reverse measurement between the pins of the electronic component 8.

The parts not described in detail are prior art. Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims (3)

1. A wiring switching device for measuring the resistance of a circuit and an electronic element is characterized in that: the device comprises a plug connector matched with a circuit or an electronic element to be tested, a wiring row and a selective switch-on knob; the two selective turn-on knobs are arranged, wherein a common terminal of one selective turn-on knob is electrically connected with a black pen of the resistance meter, and a common terminal of the other selective turn-on knob is electrically connected with the red pen; the wiring row is provided with a plurality of rows of wiring posts, one end of each wiring post is in butt joint with the contact pin of the plug connector one by one through a wire, and the other end of each wiring post is in butt joint with the selection terminals on the two selection switch-on knobs one by one through a wire.

2. A wiring switching device for electrical circuit and electronic component resistance measurement as in claim 1, wherein: each selection terminal of the selection switch-on knob is provided with a digital number; each contact pin which is in one-to-one connection with each selection terminal is also provided with a numerical number, and the numerical number is the same as the numerical number of the corresponding selection terminal.

3. A wiring switching device for electrical circuit and electronic component resistance measurement as in claim 1, wherein: a duplex change-over switch is connected between the public terminal of the two selective turn-on knobs and the black pen and the red pen of the resistance meter.