CN212845557U

CN212845557U - Universal meter with anti-interference function

Info

Publication number: CN212845557U
Application number: CN202021281686.3U
Authority: CN
Inventors: 陆正波
Original assignee: Shanghai Yongyi Instrument Co ltd
Current assignee: Shanghai Yongyi Instrument Co ltd
Priority date: 2020-07-02
Filing date: 2020-07-02
Publication date: 2021-03-30
Anticipated expiration: 2030-07-02

Abstract

The utility model discloses an anti-interference universal meter, which comprises a universal meter main body, wherein an anti-interference mechanism is arranged on the outer side of the universal meter main body; the anti-interference mechanism comprises an electromagnetic pure iron shielding case shell, a PE electromagnetic shielding conductive sponge and a display screen; the utility model discloses a multimeter, including multimeter main part, electromagnetism pure iron shield cover casing, PE electromagnetic shield electrically conductive sponge all fills between electromagnetism pure iron shield cover casing and the multimeter main part. The utility model discloses an electromagnetic shield glass on electromagnetic pure iron shield cover casing and the electrically conductive sponge of PE electromagnetic shield and the display screen in the universal meter main part not only can utilize electromagnetic pure iron shield cover casing to shield the electromagnetism, but also can utilize the electrically conductive sponge of PE electromagnetic shield to promote the effect of electromagnetic shield, moreover, utilize the electrically conductive sponge of PE electromagnetic shield, can protect the universal meter, adopt electromagnetic shield glass, can carry out the electromagnetic shield to the display screen on the universal meter.

Description

Universal meter with anti-interference function

Technical Field

The utility model relates to an universal meter technical field specifically is an universal meter with jam-proof function.

Background

The universal meter consists of three main parts, namely a meter head, a measuring circuit, a change-over switch and the like, and is the most basic tool in the field of electronic testing and also a widely-used testing instrument. The universal meter is also called as a multi-purpose meter, a three-purpose meter (A, V, omega, namely three purposes of current, voltage and resistance), a multiplex meter and a universal meter, and the universal meter is divided into a pointer universal meter and a digital universal meter, and also an oscillometric universal meter with an oscilloscope function is a multifunctional and multi-range measuring instrument. General multimeters can measure dc current, dc voltage, ac voltage, resistance, audio level, etc., and some can also measure ac current, capacitance, inductance, temperature, and some parameters of semiconductors (diodes, triodes). Digital multimeters have become mainstream and have replaced analog meters. Compared with an analog instrument, the digital instrument has the advantages of high sensitivity, high accuracy, clear display, strong overload capacity, portability and more convenient and simpler use.

Patent number CN201520517719.2 discloses an anti-interference universal meter, and it relates to the electronic instrument equipment field, concretely relates to universal meter of anti-magnetic field interference. The universal meter comprises a universal meter body, a display screen, an adjusting button, adjusting scales, a storage box, a meter pen connecting lead and an anti-interference layer; the utility model discloses a multimeter, including multimeter body, regulation button, receiver, universal meter body, the surperficial top of multimeter body is provided with the display screen, and the below of display screen is the regulation button, has the regulation scale on the regulation button, and the regulation scale is fluorescent material, is a receiver in universal meter body's right side end, and the receiver can hold two next meter pens, and the meter pen passes through meter pen connecting wire and links to each other with the universal meter body, has still covered the one deck jam-proof layer on the universal. The utility model discloses beneficial effect does: its simple structure can effectively avoid the wire of pen-shape metre to tie a knot or be torn apart because of winding on the universal meter at will, can not cause the damage of universal meter pen-shape metre, and convenience safe in utilization can prevent interference such as external magnetic field, effectively protects the accurate components and parts in the universal meter, improves the accurate nature of test.

At present, the existing multimeters with the interference prevention function have some defects, such as; the current universal meter that has an jam-proof function, not only the jam-proof effect is not very good, can't promote the protection security performance of universal meter at anti-interference in-process moreover, moreover can not carry out anti-interference protection to the display screen of universal meter.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an universal meter with jam-proof function has solved the problem that proposes among the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a universal meter with an anti-interference function comprises a universal meter body, wherein an anti-interference mechanism is arranged on the outer side of the universal meter body;

the anti-interference mechanism comprises an electromagnetic pure iron shielding case shell, a PE electromagnetic shielding conductive sponge and a display screen; multimeter main part rear side fixedly connected with electromagnetism pure iron shield cover casing, it has PE electromagnetic shield electrically conductive sponge all to fill between electromagnetism pure iron shield cover casing and the multimeter main part, multimeter main part front side top is inlayed and is fixed with the display screen, the laminating of display screen front side is fixed with electromagnetic shield glass.

As the utility model discloses a preferred embodiment, universal meter main part right side bottom electric connection has the wire, wire right side electric connection has universal pen, the wire all twines electromagnetic signal shielding film with the universal pen outside.

As a preferred embodiment of the utility model, universal meter main part front side bottom is rotated and is connected with the pointer carousel.

As a preferred embodiment of the utility model, universal meter main part and pointer carousel are the stainless metal material.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses an electromagnetic shield glass on electromagnetic pure iron shield cover casing and the electrically conductive sponge of PE electromagnetic shield and the display screen in the universal meter main part, not only can utilize electromagnetic pure iron shield cover casing to shield the electromagnetism, but also can utilize the electrically conductive sponge of PE electromagnetic shield to promote the effect of electromagnetic shield, moreover, utilize the electrically conductive sponge of PE electromagnetic shield, can protect the universal meter, adopt electromagnetic shield glass, can carry out the electromagnetic shield to the display screen on the universal meter, be favorable to the more practical universal meter that uses an anti-interference function.

2. The utility model discloses an electromagnetic signal shielding film on wire and the general purpose pen can twine the electromagnetic signal shielding film on wire and general purpose pen, promotes the anti-interference effect of wire and general purpose pen, is favorable to the universal meter that has the jam-proof function of more practical use.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a front view of an anti-interference multimeter of the present invention;

fig. 2 is a view of the electromagnetic signal shielding film of the multimeter of the present invention with interference prevention function.

In the figure: 1, universal meter main part 2, electromagnetism pure iron shield cover casing 3, PE electromagnetic shield electrically conducts sponge 4, display screen 5, electromagnetic shield glass 6, pointer carousel 7, wire 8, general purpose pen 9, electromagnetic signal shielding film.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected" and "disposed" are to be construed broadly, and may for example be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-2, the present invention provides a technical solution: a universal meter with an anti-interference function comprises a universal meter body 1, wherein an anti-interference mechanism is arranged on the outer side of the universal meter body 1;

the anti-interference mechanism comprises an electromagnetic pure iron shielding case shell 2, a PE electromagnetic shielding conductive sponge 3 and a display screen 4; 1 rear side fixedly connected with electromagnetism pure iron shield cover casing 2 of universal meter main part, it has PE electromagnetic shield electrically conductive sponge 3 all to fill between electromagnetism pure iron shield cover casing 2 and the universal meter main part 1, 1 front side top of universal meter main part is inlayed and is fixed with display screen 4, 4 front side laminating of display screen are fixed with electromagnetic shield glass 5.

Please refer to fig. 1 in this embodiment, through electromagnetic pure iron shield case casing 2 and PE electromagnetic shield conductive sponge 3 on multimeter main body 1 and electromagnetic shield glass 5 on display screen 4, not only can utilize electromagnetic pure iron shield case casing 2 to shield the electromagnetism, but also can utilize PE electromagnetic shield conductive sponge 3 to promote the effect of electromagnetic shield, moreover, utilize PE electromagnetic shield conductive sponge 3, can protect the multimeter, adopt electromagnetic shield glass 5, can carry out the electromagnetic shield to display screen 4 on the multimeter, be favorable to more practical use a multimeter with jam-proof function.

Wherein, 1 right side bottom electric connection of universal meter main part has

wire

7, 7 right sides electric connection of wire have universal pen 8, wire 7 and universal pen 8 outside all twine electromagnetic signal shielding film 9.

In the embodiment, referring to fig. 1, the electromagnetic signal shielding film 5 can be wound on the lead 7 and the universal pen 8 through the lead 7 and the electromagnetic signal shielding film 5 on the universal pen 8, so that the anti-interference effect of the lead 7 and the universal pen 8 is improved, and the universal meter with the anti-interference function is more practical.

The bottom of the front side of the multimeter body 1 is rotatably connected with a pointer turntable 6.

The multimeter body 1 and the pointer turntable 6 are both made of stainless metal materials.

When a universal meter with anti-interference function is used, through set up electromagnetic pure iron shield cover casing 2 and PE electromagnetic shield electrically conductive sponge 3 and electromagnetic shield glass 5 on display screen 4 on universal meter main part 1, not only can utilize electromagnetic pure iron shield cover casing 2 to shield the electromagnetism, but also can utilize PE electromagnetic shield electrically conductive sponge 3 to promote the effect of electromagnetic shield, moreover, utilize PE electromagnetic shield electrically conductive sponge 3, can protect the universal meter, adopt electromagnetic shield glass 5, can carry out the electromagnetic shield to display screen 4 on the universal meter, through set up electromagnetic signal shielding film 5 on wire 7 and universal pen 8, can twine electromagnetic signal shielding film 5 on wire 7 and universal pen 8, promote the anti-interference effect of wire 7 and universal pen 8.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a universal meter with jam-proof function, includes universal meter main part (1), its characterized in that: an anti-interference mechanism is arranged on the outer side of the universal meter body (1);

the anti-interference mechanism comprises an electromagnetic pure iron shielding case shell (2), a PE electromagnetic shielding conductive sponge (3) and a display screen (4); multimeter main part (1) rear side fixedly connected with electromagnetism pure iron shield cover casing (2), it has PE electromagnetic shield electrically conductive sponge (3) all to fill between electromagnetism pure iron shield cover casing (2) and multimeter main part (1), multimeter main part (1) front side top is inlayed and is fixed with display screen (4), display screen (4) front side laminating is fixed with electromagnetic shield glass (5).

2. The multimeter of claim 1, wherein: multimeter main part (1) right side bottom electric connection has wire (7), wire (7) right side electric connection has universal pen (8), all twine electromagnetic signal shielding film (9) in wire (7) and universal pen (8) outside.

3. The multimeter of claim 1, wherein: the bottom of the front side of the universal meter body (1) is rotatably connected with a pointer turntable (6).

4. The multimeter of claim 3, wherein: the universal meter main body (1) and the pointer turntable (6) are both made of stainless metal materials.