CN210090543U

CN210090543U - Universal meter

Info

Publication number: CN210090543U
Application number: CN201920569108.0U
Authority: CN
Inventors: 吕智嘉
Original assignee: Shenhua (fuzhou) Luoyuan Bay Port Power Co Ltd; China Shenhua Energy Co Ltd; Shenhua Fujian Energy Co Ltd
Current assignee: Shenhua (fuzhou) Luoyuan Bay Port Power Co Ltd; China Shenhua Energy Co Ltd; Shenhua Fujian Energy Co Ltd
Priority date: 2019-04-24
Filing date: 2019-04-24
Publication date: 2020-02-18
Anticipated expiration: 2029-04-24

Abstract

The utility model provides an universal meter, include: the meter pen is provided with a display window, and a light source capable of illuminating the display window is arranged in the display window; the watch body is provided with a plurality of jacks for inserting the meter pen, when the meter pen is inserted into the jacks, a power supply in the watch body is electrically connected with the light source, the power supply supplies power to the light source, and the light source illuminates the display window. 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 meter pen is provided with a display window, and a light source capable of illuminating the display window is arranged in the display window; the watch body is provided with a plurality of jacks for inserting the meter pen, when the meter pen is inserted into the jacks, a power supply in the watch body is electrically connected with the light source, the power supply supplies power to the light source, and the light source illuminates the display window.

Furthermore, the display window is a plurality of, and sets up along the pen-shape metre circumference.

Further, the meter pen comprises a limiting ring, the limiting ring extends out along the radial direction of the meter pen, and the limiting ring is located between the head end of the meter pen and the display window.

Further, the meter pen comprises a membrane arranged in the display window, the membrane is provided with a prompt mark, the prompt mark is opposite to the display window, and the membrane is located between the display window and the light source.

Furthermore, the diaphragm is the tube-shape, and the diaphragm has the light-transmitting section and the shading section that circumference set up, and the light-transmitting section aligns and the one-to-one setting with the display window, has the shading section between two adjacent light-transmitting sections.

Furthermore, the light-transmitting section and the light-shielding section are respectively provided with three light-transmitting sections and arranged in sequence along the circumferential direction of the membrane.

Further, the meter pen has a hollow structure, and the diaphragm and the light source are both arranged in the hollow structure.

Further, the stylus includes: the probe is arranged at the head end of the meter pen; the plug is connected with the tail end of the meter pen, the plug is provided with a plurality of contact pins, the contact pins and the jacks are arranged in a one-to-one correspondence mode, at least one contact pin is electrically connected with the probe, and at least two other contact pins are electrically connected with the positive end and the negative end of the light source respectively.

Further, all of the receptacles include: the working jack is connected with the components in the watch body; a first prompt jack; and the first prompt jack and the second prompt jack are respectively connected with the anode and the cathode of the power supply, when the plug is inserted into the jacks, the contact pin connected with the probe is electrically connected with the working jack, and the two contact pins connected with the light source are respectively electrically connected with the first prompt jack and the second prompt jack.

Furthermore, the jacks are current test jacks, and at least one jack is electrically connected with an ammeter in the meter body.

Use the technical scheme of the utility model, through be provided with display window on the pen-shape metre, and can illuminate display window through the light source, when the pen-shape metre inserts the jack on the gauge body, the pen-shape metre realizes the electricity with the gauge body and is connected, the light source is connected with the power electricity, thereby make the power supply can be for the light source power supply, the light source is luminous throws out through display window, with the gear that the automatically controlled technical staff pen-shape metre of suggestion inserted, avoid automatically controlled technical staff to use the gear mistakenly and cause the universal meter to damage the condition of unit shut down even, guarantee that the universal meter uses according to the application 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;

FIG. 2 shows a schematic view of the diaphragm within the stylus of FIG. 1; and

fig. 3 shows a schematic structural diagram of a multimeter body of the present invention.

Wherein the figures include the following reference numerals:

10. a meter pen; 11. displaying a window; 12. a limiting ring; 13. a membrane; 131. a light-transmitting section; 132. a light-shielding section; 14. a probe; 15. a plug; 20. a watch body; 21. a jack; 211. a working jack; 212. a first prompt jack; 213. and a second prompting jack.

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 3 comprises a stylus 10 and a body 20, wherein the stylus 10 is provided with a display window 11, and a light source capable of illuminating the display window 11 is arranged in the display window 11; the watch body 20 is provided with a plurality of insertion holes 21 for inserting the stylus 10, and when the stylus 10 is inserted into the insertion holes 21, a power supply in the watch body 20 is electrically connected with the light source, the power supply supplies power to the light source, and the light source illuminates the display window 11.

This embodiment is through being provided with display window 11 on pen-shape metre 10, and can illuminate display window 11 through the light source, when pen-shape metre 10 inserts jack 21 on the gauge body 20, pen-shape metre 10 realizes the electricity with gauge body 20 and is connected, the light source is connected with the power electricity, thereby make the power supply can be for the light source power supply, the light source is luminous throws out through display window 11, with the gear that suggestion automatically controlled technical staff pen-shape metre 10 inserted, avoid automatically controlled technical staff to use the gear by mistake and cause the condition that the universal meter damaged even the unit stops operating, guarantee that the universal meter uses according to the service specification.

In this embodiment, the jack 21 is taken as an example of a current testing jack, and accordingly, at least one jack 21 is electrically connected to an ammeter in the meter body 20, and when the light source is powered on, the electronic control technician is prompted that the current gear is the current gear at the time of the multimeter. Of course, if desired, the jack 21 may also be a voltage ohmic plug wire hole.

In the present embodiment, the display window 11 is plural and is disposed along the circumferential direction of the stylus 10. Preferably, the display windows 11 are three and arranged at intervals of 120 degrees along the circumferential direction of the meter pen 10, so that an electric control technician can observe the on-off condition of the light source from various angles, and the gear of the multimeter can be judged.

In the present embodiment, the stylus 10 includes a stop collar 12, the stop collar 12 extends in a radial direction of the stylus 10, and the stop collar 12 is located between a head end of the stylus 10 and the display window 11. Use the one end at probe 14 place on pen-shape metre 10 as the head end, wire on the pen-shape metre 10 is pulled out with table body 20 and is inserted complex one end as the tail end, under general conditions, the middle part of handheld pen-shape metre 10 when automatically controlled technical staff uses pen-shape metre 10, the condition that pen-shape metre 10 was observed to the head end by the tail end of pen-shape metre 10 to the eye, and the setting of spacing ring 12 can shelter from partly visual area, make a little section distance that lies in spacing ring 12 front end on the pen-shape metre 10 become the observation blind area, if display window 11 sets up here, then inconvenient automatically controlled technical staff observes, consequently, set up display window 11 at the rear end of spacing ring 12 promptly spacing ring 12 and be located between head end and display window 11, thereby avoided the observation blind area, guarantee that automatically controlled technical staff can conveniently observe the suggestion condition of display window 11.

At the moment before the electric control technician uses the probe 14 of the meter pen 10 of the multimeter to contact the measured terminal, no matter which gear the electric control technician does not notice that the meter pen 10 is inserted into, the visual field of the electric control technician contains the head end of the meter pen 10, and the sight center follows the head end of the meter pen 10 until the probe 14 contacts the measured terminal, so that once the current gear is on during the period, the electric control technician can be inevitably made to notice the state, thereby effectively reminding the meter pen 10 of the electric control technician of being currently inserted into the current gear.

Optionally, the stylus 10 includes a diaphragm 13 disposed in the display window 11, the diaphragm 13 has a prompting mark, and the prompting mark faces the display window 11, and the diaphragm 13 is located between the display window 11 and the light source.

Specifically, as shown in fig. 2, the film 13 is cylindrical, the film 13 has a light-transmitting section 131 and a light-shielding section 132 which are circumferentially arranged, the light-transmitting section 131 is aligned with the display window 11 and is arranged in a one-to-one correspondence, and the light-shielding section 132 is arranged between two adjacent light-transmitting sections 131. With the display window 11, the light-transmitting section 131 and the light-shielding section 132 of this embodiment are respectively provided with three, and are respectively arranged at intervals of 120 degrees in turn along the circumference of the membrane 13, the light-transmitting section 131 can project the light emitted by the light source through the display window 11, and the light-shielding section 132 can shield the light. Since the present embodiment is described by taking the current level as an example, the indication mark may be in the word "current level", and the light emitted by the light source is preferably red light to achieve a sufficient indication effect.

In this embodiment, a part of the segments of the stylus 10 has a hollow structure, the diaphragm 13 and the light source are both disposed in the hollow structure, and the wall of the hollow structure is required to be insulated and has a certain strength, so as to ensure the structural strength of the whole stylus 10.

In the embodiment, the stylus 10 comprises a probe 14 and a plug 15, wherein the probe 14 is arranged at the head end of the stylus 10; the plug 15 is connected with the tail end of the meter pen 10 through a lead, the plug 15 is provided with a plurality of contact pins, the contact pins and the jacks 21 are arranged in a one-to-one correspondence mode, at least one contact pin is electrically connected with the probe 14, and at least two other contact pins are respectively electrically connected with the positive end and the negative end of the light source.

The light source of this embodiment is a miniature red bulb installed in a hollow structure, the lead wires at the positive and negative ends of the bulb and the lead wires connected with the probe 14 are collected and led out from the tail end of the meter pen 10 together to form a three-core cable, and the terminal of the three-core cable is provided with a plug 15 with three contact pins, so that one contact pin is connected with the metal probe 14 of the meter pen 10 and used for normal test of the multimeter, and the other two contact pins are respectively connected with the positive and negative ends of the bulb and used for supplying power to the bulb by a power supply.

Correspondingly, all the jacks 21 include a working jack 211, a first prompt jack 212 and a second prompt jack 213, the working jack 211 is connected with a component in the meter body 20, namely, an ammeter, and the working jack 211 is an original current gear jack; first suggestion jack 212 and second suggestion jack 213 are connected with the positive pole and the negative pole of power respectively, and when plug 15 inserted jack 21, the contact pin of being connected with probe 14 was connected with work jack 211 electricity to realize the measurement function of universal meter, simultaneously, two contact pins of being connected with the light source correspond respectively and first suggestion jack 212 and second suggestion jack 213 electricity are connected, thereby realize the electricity between light source and the power and be connected, and the light source is luminous, plays the suggestion effect.

The above-mentioned stylus 10 is a red stylus, the black stylus has the same structure as the original one, and the watch body 20 is also provided with a common plug wire hole for engaging with the black stylus. In addition, in order to adapt to the structure of the red stylus, the plug wire holes of other gears, for example, the voltage ohm plug wire hole, should also include three plug wire holes, the structure of which is substantially the same as that of the above-mentioned plug wire hole 21, but the difference lies in that in the ohm plug wire hole, there is no electrical connection between the other two additionally added plug wire holes and the power supply, even if the red stylus is inserted into the ohm plug wire hole, the light source is not communicated with the power supply, and there is no light-emitting prompt, so that it can inform the electric control technician that the red stylus is not inserted into the current gear, and the red stylus can.

It should be noted that, a plurality in the above embodiments means at least two.

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

1. A multimeter, comprising:

the pen-type meter comprises a meter pen (10), wherein the meter pen (10) is provided with a display window (11), and a light source capable of illuminating the display window (11) is arranged in the display window (11);

the watch body (20), watch body (20) has a plurality of jacks (21) that supply pen-shape metre (10) are inserted, and when pen-shape metre (10) are inserted jack (21), the power in watch body (20) with the light source electricity is connected, the power is for the light source power supply, the light source illuminates display window (11).

2. A multimeter as claimed in claim 1, wherein the display window (11) is plural and is disposed circumferentially along the stylus (10).

3. A multimeter as claimed in claim 1, wherein the stylus (10) comprises a stop collar (12), the stop collar (12) projecting radially along the stylus (10), and the stop collar (12) being located between a tip end of the stylus (10) and the display window (11).

4. A multimeter as claimed in claim 1, wherein the stylus (10) comprises a diaphragm (13) disposed within the display window (11), the diaphragm (13) having a notification indicia, and the notification indicia being directly opposite the display window (11), the diaphragm (13) being located between the display window (11) and the light source.

5. The multimeter according to claim 4, wherein the membrane (13) is cylindrical, the membrane (13) has a light-transmitting section (131) and a light-shielding section (132) which are circumferentially arranged, the light-transmitting section (131) is aligned with the display window (11) and is arranged in a one-to-one correspondence manner, and the light-shielding section (132) is arranged between two adjacent light-transmitting sections (131).

6. A multimeter as claimed in claim 5, wherein the light transmitting section (131) and the light blocking section (132) are respectively provided in three numbers and are arranged in sequence along a circumferential direction of the diaphragm (13).

7. A multimeter as claimed in claim 4, wherein the stylus (10) has a hollow structure, the diaphragm (13) and the light source being disposed within the hollow structure.

8. A multimeter as claimed in claim 1, wherein the stylus (10) comprises:

a probe (14), the probe (14) being arranged at the tip of the stylus (10);

the plug (15), plug (15) with the tail end of pen-shape metre (10) is connected, plug (15) have a plurality of contact pins, the contact pin with jack (21) one-to-one sets up, at least one the contact pin with probe (14) electricity is connected, at least two other the contact pin respectively with the positive and negative end electricity of light source is connected.

9. A multimeter as claimed in claim 8, wherein all of the jacks (21) comprise:

the working jack (211), the said working jack (211) is connected with the components and parts in the said watch body (20);

a first cueing socket (212);

second suggestion jack (213), first suggestion jack (212) with second suggestion jack (213) respectively with the positive pole and the negative pole of power are connected, plug (15) insert during jack (21), with probe (14) are connected the contact pin with work jack (211) electricity is connected, with two that the light source is connected the contact pin respectively with first suggestion jack (212) with second suggestion jack (213) electricity is connected.

10. A multimeter as claimed in claim 1, wherein the jacks (21) are galvanic test jacks, at least one of the jacks (21) being electrically connected to a current meter within the body (20).