CN210071915U - Universal meter - Google Patents

Abstract

The utility model provides an universal meter, include: the watch body is provided with a jack, and a sensing piece is arranged in the jack; the meter pen, one end that the meter pen inserts the jack has magnetic part cooperating with induction element; the suggestion subassembly, the suggestion subassembly forms the return circuit with power and response piece in the table body, and the response piece can control loop's break-make, and when the response piece sensed the magnetic part, response piece control loop intercommunication, the power was for the power supply of suggestion subassembly, and the suggestion subassembly sends cue signal. The utility model provides an among the prior art automatically controlled technical staff use the problem of universal meter current shelves by mistake easily.

Description

Universal meter

Technical Field

The utility model relates to an ammeter technical field particularly, relates to an universal meter.

Background

At present, 3 meter pen plug wire holes and two meter pens in red and black are commonly used and configured, one of the 3 meter pen plug wire holes is a public end and is a fixed inserting position of the black meter pen, the red meter pen is inserted into the current gear plug wire hole to indicate the input of a current measuring circuit of the universal meter, and the red meter pen indicates the input of a voltage or resistance measuring circuit of the universal meter when inserted into the voltage ohm plug wire hole.

Multimeter gears frequently used by an electric control technician are a voltage gear and an ohm gear, which are used for measuring alternating current and direct current voltages and resistance of equipment instruments, but a current gear is less used, and the unbalance is likely to cause the electric control maintenance personnel to habitually use the current gear as the voltage gear in the process of eliminating the defect maintenance, and finally, the following results are obtained: 1. the fuse of the multimeter is fused, and the current gear is unavailable; 2. the burning loss of important equipment is caused by overlarge current of an electric loop; 3. the short circuit of the switching value node of the important protection causes the tripping of the unit.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide an universal meter to solve the problem that the electrical control technician can mistakenly use the current gear of the universal meter easily in the prior art.

In order to achieve the above object, the utility model provides an universal meter, include: the watch body is provided with a jack, and a sensing piece is arranged in the jack; the meter pen, one end that the meter pen inserts the jack has magnetic part cooperating with induction element; the suggestion subassembly, the suggestion subassembly forms the return circuit with power and response piece in the table body, and the response piece can control loop's break-make, and when the response piece sensed the magnetic part, response piece control loop intercommunication, the power was for the power supply of suggestion subassembly, and the suggestion subassembly sends cue signal.

Further, the meter pen comprises a plug which is matched with the meter body in an inserting mode, and a magnetic part is arranged at the part, inserted into the jack, of the plug.

Further, the magnetic part is magnetic steel.

Further, the sensing part is a reed switch or a Hall element.

Further, the prompting component comprises a light source, and light emitted by the light source can be projected from the watch body.

Further, the light source is a ring-shaped indicator light, and the ring-shaped indicator light surrounds along the circumference of the jack.

Further, the light emitted by the light source is red in color.

Further, the prompting component comprises a sound source, and the sound source can give out prompting sound after being electrified.

Furthermore, the jack is a current test jack, and the jack is electrically connected with an ammeter in the meter body.

Further, the meter pen is a red meter pen.

Use the technical scheme of the utility model, through being provided with the response piece, magnetic part and suggestion subassembly, and will follow the response piece, suggestion subassembly and power series connection form the return circuit, the response piece can control the break-make condition in whole return circuit as the switch, when the pen-shape metre does not insert in the jack, the response piece does not respond to the magnetic part, the return circuit is in the state of disconnection, the suggestion subassembly can not send prompting signal, when the pen-shape metre inserts in the jack, magnetic part and response piece mutually support, response piece control circuit intercommunication, the power is for the power supply of suggestion subassembly, the suggestion subassembly sends prompting signal, remind the gear that automatically controlled technical staff used this moment, avoid automatically controlled technical staff to use the gear mistakenly and cause the condition that the universal meter damaged even unit stopped transport, guarantee that the universal meter uses according to the operation standard.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 shows a schematic structural diagram of a stylus of a multimeter of the present invention; and

FIG. 2 shows a schematic structural diagram of a body of the multimeter of the present invention;

wherein the figures include the following reference numerals:

10. a watch body; 11. a jack; 12. a sensing member; 20. a meter pen; 21. a magnetic member; 22. a plug; 23. a probe; 24. a wire; 30. and a prompt component.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present application, where the contrary is not intended, the use of directional words such as "upper, lower, top and bottom" is generally with respect to the orientation shown in the drawings, or with respect to the component itself in the vertical, perpendicular or gravitational direction; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.

In order to solve the problem that automatically controlled technical staff uses universal meter current shelves among the prior art mistake easily, the utility model provides a universal meter.

The multimeter shown in fig. 1 and 2 comprises a body 10, a pen-shape meter 20 and a prompt component 30, wherein the body 10 is provided with a jack 11, and a sensing part 12 is arranged in the jack 11; one end of the meter pen 20 inserted into the jack 11 is provided with a magnetic part 21 matched with the induction part 12; the prompting component 30 and the power supply in the watch body 10 and the induction part 12 form a loop, the induction part 12 can control the on-off of the loop, when the induction part 12 induces the magnetic part 21, the induction part 12 controls the loop to be communicated, the power supply supplies power for the prompting component 30, and the prompting component 30 sends a prompting signal.

This embodiment is through being provided with response piece 12, magnetic part 21 and suggestion subassembly 30, and will follow response piece 12, suggestion subassembly 30 and power series connection form the return circuit, the break-make condition in whole return circuit can be controlled as the switch to response piece 12, when pen-shape metre 20 does not insert in the jack 11, magnetic part 21 can not be responded to response piece 12, the return circuit is in the state of disconnection, suggestion subassembly 30 can not send out the cue signal, when pen-shape metre 20 inserts in the jack 11, magnetic part 21 and response piece 12 mutually support, response piece 12 control circuit intercommunication, the power supplies power for suggestion subassembly 30, suggestion subassembly 30 sends out the cue signal, remind the gear that automatically controlled technician used this moment the universal meter, avoid automatically controlled technician to mistakenly use the gear to cause the condition that the universal meter damaged or even unit stopped transporting, guarantee that the universal meter uses according to the specification.

In this embodiment, the jack 11 is taken as an example of a current testing jack, the sensing element 12 is only disposed in the current testing jack, accordingly, the current testing jack is electrically connected to an ammeter in the meter body 10, and the prompting component 30 prompts an electrically controlled technician that a current gear is a gear of the multimeter at this time when the multimeter is powered on. Of course, if there is need, also can be provided with response piece 12 in voltage ohm jack, when all being provided with response piece 12 in current test jack and voltage ohm jack, can distinguish through the different suggestion subassembly 30 of loop connection difference, send different suggestion signals through suggestion subassembly 30.

In this embodiment, the stylus 20 includes probe 23, plug 22 and wire 24 triplex, probe 23 is used for contacting the terminal that awaits measuring, be connected through wire 24 electricity between probe 23 and the plug 22, can the cooperation of pegging graft between plug 22 and the watch body 10, the part that plug 22 inserted jack 11 is provided with magnetic part 21, like this, only when plug 22 inserts jack 11 in, the distance between magnetic part 21 and the response 12 can trigger response 12, only when plug 22 inserts jack 11 in the assurance subassembly 30 can send the cue signal, avoid the suggestion subassembly 30 false triggering.

In the present embodiment, the magnetic member 21 is a magnetic steel, more specifically a magnetic sheet, and accordingly, the inductive member 12 is a reed switch disposed in the insertion hole 11 of the watch body 10, but the inductive member 12 may also be a hall element.

In the present embodiment, the indication assembly 30 includes a light source, and the light emitted from the light source can be projected from the watch body 10. The light source is preferably a ring-shaped indicator light which surrounds along the circumferential direction of the insertion hole 11 and is concentrically arranged with the insertion hole 11, and a part of the ring-shaped indicator light is exposed from the inside and the outside of the watch body 10, so that an electric control technician can observe the state of the ring-shaped indicator light conveniently. Of course, the annular indicator light may also be completely disposed in the watch body 10, and a transparent window is disposed on the watch body 10, and the annular indicator light corresponds to the transparent window, so that the light of the annular indicator light can be projected from the transparent window.

Preferably, the light emitted by the light source is red in color, the red light has strong penetrability, and the color is obvious, so that a sufficient prompt effect is achieved.

The prompt component 30 of the present embodiment further includes a sound source besides the light source, the sound source is connected in parallel with the light source and then connected in series with the power supply and the sensor 12, and the sound source can emit a prompt sound after being powered on. The content of the prompt tone can be sound such as 'current level, do not have short circuit' when using. Considering the possibility that repeated alert tones may cause irritation to the electrically controlled technician, it is contemplated that a soothing piece of music may be added between the repeated alert tones. If the current file is played repeatedly, a piece of relaxing music is played after three times of short circuit is avoided, so that the electric control technical personnel can receive accurate voice prompt, avoid the conflict psychology of the electric control technical personnel and enhance the prompt effect. If the meter pen 20 is not pulled out, the prompt tone is always on, so the prompt tone can prompt an electric control technician when using the universal meter, the short circuit accident caused by the fact that two meter pens directly measure the equipment voltage under the condition that the meter pen 20 is not shifted after the current is measured can be prevented, the electric control technician can also be enabled to use the universal meter to measure the current and arrange the universal meter, the current meter pen 20 is audibly prompted to be inserted into the jack 11 of the current gear, the meter pen 20 is effectively prompted to be inserted back into the voltage ohm plug wire hole, the situation that the voltage is directly measured when the meter pen 20 is used next time due to the fact that the voltage is forgotten to be inserted back is avoided, and the accident is caused.

It should be noted that the above-mentioned stylus 20 is a red stylus, the structure of the black stylus is the same as the original structure, the meter body 10 is also provided with a common plug wire hole matched with the black stylus and a voltage ohm plug wire hole matched with the red stylus, and the red stylus can switch positions between the current test jack and the voltage ohm plug wire hole.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:

1. the problem that in the prior art, an electric control technician easily and mistakenly uses the current gear of the universal meter is solved;

2. the possibility of short circuit burning loss of important equipment and even tripping of the unit caused by improper gear use is reduced, and the safety and stability of unit operation are improved;

3. the principle and the structure are simple, the practicability is strong, and the cost is low.

It is obvious that the above described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A multimeter, comprising:

the watch comprises a watch body (10), wherein the watch body (10) is provided with a jack (11), and an induction piece (12) is arranged in the jack (11);

the meter pen (20), one end of the meter pen (20) inserted into the jack (11) is provided with a magnetic part (21) matched with the induction part (12);

the prompting device comprises a prompting component (30), wherein the prompting component (30), a power supply in the watch body (10) and the induction part (12) form a loop, the induction part (12) can control the on-off of the loop, when the induction part (12) induces the magnetic part (21), the induction part (12) controls the loop to be communicated, the power supply supplies power to the prompting component (30), and the prompting component (30) sends a prompting signal.

2. A multimeter as claimed in claim 1, wherein the stylus (20) comprises a plug (22) for mating with the body (10), the portion of the plug (22) inserted into the socket (11) being provided with the magnetic member (21).

3. A multimeter as claimed in claim 1, wherein the magnetic member (21) is magnetic steel.

4. A multimeter as claimed in claim 1, wherein the sensing element (12) is a reed switch or a hall element.

5. The multimeter of claim 1, wherein the cue assembly (30) comprises a light source, and light emitted by the light source is projectable from within the body (10).

6. A multimeter as claimed in claim 5, wherein the light source is a ring indicator light, and the ring indicator light is circumferentially surrounding the jack (11).

7. The multimeter of claim 5, wherein the light source emits light in a red color.

8. The multimeter of claim 1, wherein the prompt assembly (30) comprises a sound source capable of emitting a prompt tone upon power-up.

9. A multimeter as claimed in claim 1, wherein the jack (11) is a current test jack, and the jack (11) is electrically connected to a current meter inside the body (10).

10. A multimeter as claimed in claim 1, wherein the stylus (20) is a red stylus.

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