CN217360259U

CN217360259U - Electrical variable fault indicator

Info

Publication number: CN217360259U
Application number: CN202221788174.5U
Authority: CN
Inventors: 张伟华
Original assignee: ZHUHAI YINGYUAN ELECTRIC CO Ltd
Current assignee: ZHUHAI YINGYUAN ELECTRIC CO Ltd
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2022-09-02
Anticipated expiration: 2032-07-12

Abstract

The utility model provides an electrical variable fault indicator, which comprises a body, wherein a main electromagnetic detection coil is arranged inside the body, two elastic conductive blocks connected with the end part of the main arc electromagnetic detection coil are arranged at the top of the body, and a linear groove is arranged in the middle of the top end of the body; the middle part of the top end of the body is hinged with an arc-shaped shell which is vertically arranged with the linear grooves in a cross manner, the middle part of the arc-shaped shell is provided with an installation cavity, an auxiliary electromagnetic detection coil is arranged in the installation cavity, and the auxiliary electromagnetic detection coil and the main electromagnetic detection coil are butted to form an annular detection coil; the utility model discloses a be equipped with one at the top of body and assist electromagnetic detection coil, assist electromagnetic detection coil and main electromagnetic detection coil butt joint and form an annular detection coil, around the outside at the cable, improve the detection range to the cable internal current, avoid the dust to pile up and produce the influence at the casing top to the testing process, improved the precision that detects.

Description

Electrical variable fault indicator

Technical Field

The utility model relates to a fault indicator technical field, concretely relates to electrical variable fault indicator.

Background

A fault indicator is an electromagnetic induction device that presents a fault sign (red) when a short circuit current passes through the cable.

Most of fault indicators in the prior art all set up the electromagnetic induction device of the change of measuring current in its casing, and the cable contacts with fault indicator's a terminal surface, and in the use, easily accumulate the dust between casing and the cable, and when the dust is more, can influence the judgement to electrical variable in the circuit, and then influence the precision that detects, consequently, need one kind can avoid the fault indicator that causes the influence when the change value of dust electric current detects in the cable.

SUMMERY OF THE UTILITY MODEL

Solves the technical problem

To the above-mentioned shortcoming that prior art exists, the utility model provides an electrical variable fault indicator can solve easily accumulation dust between prior art casing and the cable effectively, and the dust is when more, can influence the judgement to electrical variable in the circuit, and then influences the problem of the precision that detects.

Technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

the utility model provides an electrical variable fault indicator, which comprises a body, wherein a main electromagnetic detection coil is arranged inside the body, two elastic conductive blocks connected with the end part of the main arc electromagnetic detection coil are arranged at the top of the body, and a linear groove is arranged in the middle of the top end of the body; the middle part of the top end of the body is hinged with an arc-shaped shell which is vertically arranged with the linear grooves in a cross manner, the middle part of the arc-shaped shell is provided with an installation cavity, an auxiliary electromagnetic detection coil is arranged in the installation cavity, auxiliary conductive blocks corresponding to the elastic conductive blocks are arranged at two ends of the auxiliary electromagnetic detection coil, and the auxiliary electromagnetic detection coil and the main electromagnetic detection coil are butted to form an annular detection coil; elastic fixing parts are arranged on two sides of the arc-shaped shell, an arc-shaped pressing plate is arranged at the bottom of each elastic fixing part, and the arc-shaped pressing plate is in butt joint with the linear grooves to form a limiting opening for fixing the cable.

Further, elastic fixing spare is including setting up the fixing base in arc casing both sides, flexible groove has been seted up to the bottom of fixing base, the top of arc clamp plate is fixed with the slider with flexible groove adaptation sliding connection, the inner of slider insert flexible inslot and with flexible inslot and be equipped with the elastic component between the inner wall in groove.

Further, fixing base and arc casing integrated into one piece, the bottom of fixing base has the arc piece with arc clamp plate looks adaptation, the holding tank with arc clamp plate looks adaptation is seted up to the inboard of arc piece.

Further, the connector that communicates with the installation cavity is all seted up to the both sides of arc casing, the connector is relative with the electrically conductive piece of elasticity, it is in the connector that corresponds to assist the electrically conductive piece joint.

Further, a mounting opening is formed in the inner side of the arc-shaped shell, and a limiting plate is mounted in the mounting opening.

Further, the non-hinged end of the arc-shaped shell is fixed with the body through an elastic buckle.

Advantageous effects

The utility model provides a technical scheme compares with known public technique, has following beneficial effect:

1. the utility model discloses a be equipped with an auxiliary electromagnetic detection coil at the top of body, auxiliary electromagnetic detection coil and main electromagnetic detection coil butt joint form an annular detection coil, around the outside of cable, improve the detection range to the electric current in the cable, and auxiliary electromagnetic detection coil inboard down, be difficult for the deposition, avoid the dust to pile up at the casing top and produce the influence to the testing process, improved the precision of detection;

2. linear recess can be arranged in the cable through being equipped with linear recess at the top of body to carry on spacingly through the arc clamp plate to the cable, improve cable and body coupling's stability.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a schematic structural diagram of an electrical variable fault indicator of the present invention;

FIG. 2 is a schematic view of the present invention in its expanded configuration;

fig. 3 is a schematic structural diagram of the arc-shaped housing of the present invention.

The reference numerals in the drawings denote: 1. a body; 2. an elastic conductive block; 3. a linear groove; 4. an arc-shaped shell; 5. a mounting cavity; 6. an auxiliary electromagnetic detection coil; 7. a conductive auxiliary block; 8. an elastic fixing member; 9. an arc-shaped pressing plate; 10. a fixed seat; 11. a telescopic groove; 12. a slider; 13. an elastic member; 14. an arc-shaped block; 15. accommodating grooves; 16. a connection port; 17. an installation port; 18. a limiting plate; 19. an elastic buckle.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is to be understood that the embodiments described 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 belong to the protection scope of the present invention.

The present invention will be further described with reference to the following examples.

Example (b): referring to fig. 1-2, an electric variable fault indicator includes a body 1, where the body 1 is a fault indicator disclosed in the prior art, a circuit board is provided inside the fault indicator, a main electromagnetic detection coil is provided on the top of the inside, the main electromagnetic detection coil is electrically connected to the circuit board (not shown in the figures), and a specific skilled person in the art can obtain the specific structure and working principle of the fault indicator disclosed in the present invention by looking up a technical manual or a technical dictionary, and the detailed description is omitted here.

Specifically, in order to avoid the problem that dust is easy to accumulate between the shell and the cable when the cable is contacted with one end face of the fault indicator in the using process and the judgment of an electric variable in a circuit is influenced and the detection precision is further influenced when the dust is more, the scheme is that two elastic conductive blocks 2 connected with the end parts of a main arc-shaped electromagnetic detection coil are arranged at the top of a body 1, an arc-shaped shell 4 which is vertically arranged with a linear groove 3 in a cross manner is hinged at the middle part of the top end of the body 1, a mounting cavity 5 is arranged at the middle part of the arc-shaped shell 4, an auxiliary electromagnetic detection coil 6 is arranged in the mounting cavity 5, auxiliary conductive blocks 7 corresponding to the elastic conductive blocks 2 are arranged at two ends of the auxiliary electromagnetic detection coil 6, the auxiliary electromagnetic detection coil 6 is butted with the main electromagnetic detection coil to form an annular detection coil, so that the cable is arranged in the middle of the detection coil, and the detection range of the current in the cable is improved, the dust is prevented from being accumulated on the top of the shell to influence the detection process, when the detection device works, the circuit on the circuit board in the body 1 is matched with the detection coil to give an electric signal of fault indication, and the detection device is provided with an electro-optical conversion unit to convert the electric signal of the fault indication into an optical signal to warn.

In order to improve the stability of the cable and the top end of the body 1, a linear groove 3 is formed in the middle of the top end of the body 1, the groove is in an arc groove shape and can be better attached to the cable, elastic fixing parts 8 are arranged on two sides of an arc shell 4, an arc pressing plate 9 is arranged at the bottom of each elastic fixing part 8, the arc pressing plate 9 is in butt joint with the linear groove 3 to form a limiting port for fixing the cable, specifically, each elastic fixing part 8 comprises fixing seats 10 arranged on two sides of the arc shell 4, a telescopic groove 11 is formed in the bottom of each fixing seat 10, a sliding block 12 which is matched with the telescopic groove 11 and is in sliding connection with the top of each arc pressing plate 9 is fixed at the top of each arc pressing plate 9, the inner end of each sliding block 12 is inserted into the telescopic groove 11, an elastic part 13 is arranged between the inner end of each sliding block 12 and the inner wall of the telescopic groove 11, the non-hinged end of the arc shell 4 is fixed with the body 1 through an elastic buckle 19, during installation, the cable can be placed in the linear groove 3, arc clamp plate 9 plays a limiting displacement to the cable, and through the elasticity with elastic component 13, can avoid making the pressure that the cable received too big when fixed cable, causes wearing and tearing to the cable, and can effectively fix the cable through the elasticity with elastic component 13, through the cooperation with linear recess 3, improves the stability that cable and body 1 are connected, and easy operation, convenient to use.

Referring to as shown in figure 3, fixing base 10 and arc casing 4 integrated into one piece, the bottom of fixing base 10 has the arc piece 14 with arc clamp plate 9 looks adaptation, and holding tank 15 with arc clamp plate 9 looks adaptation is seted up to the inboard of arc piece 14, can with arc clamp plate 9 adaptation, and arc clamp plate 9 can form one better with linear recess 3 butt joint and carry out the spacing mouth of position to the cable.

Referring to fig. 3, connectors 16 communicated with the installation cavity 5 are formed in two sides of the arc-shaped shell 4, the connectors 16 are opposite to the elastic conductive blocks 2, and the auxiliary conductive blocks 7 are clamped in the corresponding connectors 16, so that the elastic conductive blocks 2 are conveniently contacted with the auxiliary conductive blocks 7, and the auxiliary electromagnetic detection coil 6 and the main electromagnetic detection coil are butted to form an annular detection coil.

Referring to fig. 3, the inner side of the arc-shaped shell 4 is provided with a mounting opening 17, and a limiting plate 18 is mounted in the mounting opening 17, so that the auxiliary electromagnetic detection coil 6 on the device can be conveniently dismounted.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides an electrically variable fault indicator, includes body (1), the inside of body (1) has a main electromagnetic detection coil, the top of body (1) is equipped with two elastic conducting block (2) of being connected with main arc electromagnetic detection coil end, its characterized in that:

the middle part of the top end of the body (1) is provided with a linear groove (3);

the middle of the top end of the body (1) is hinged with an arc-shaped shell (4) which is vertically arranged in a cross manner with the linear groove (3), the middle of the arc-shaped shell (4) is provided with a mounting cavity (5), an auxiliary electromagnetic detection coil (6) is arranged in the mounting cavity (5), two ends of the auxiliary electromagnetic detection coil (6) are respectively provided with an auxiliary conductive block (7) corresponding to the elastic conductive block (2), and the auxiliary electromagnetic detection coil (6) is in butt joint with the main electromagnetic detection coil to form an annular detection coil;

the cable fixing device is characterized in that elastic fixing parts (8) are arranged on two sides of the arc-shaped shell (4), an arc-shaped pressing plate (9) is arranged at the bottom of each elastic fixing part (8), and the arc-shaped pressing plate (9) is in butt joint with the linear groove (3) to form a limiting opening for fixing a cable.

2. The electrical variable fault indicator according to claim 1, wherein the elastic fixing member (8) comprises fixing seats (10) arranged on two sides of the arc-shaped shell (4), a telescopic groove (11) is formed in the bottom of each fixing seat (10), a sliding block (12) in sliding connection with the telescopic groove (11) in a matching mode is fixed to the top of the arc-shaped pressing plate (9), the inner end of the sliding block (12) is inserted into the telescopic groove (11), and an elastic member (13) is arranged between the inner end of the sliding block and the inner wall of the telescopic groove (11).

3. The electrical variable fault indicator according to claim 2, wherein the fixing seat (10) is integrally formed with the arc-shaped shell (4), an arc-shaped block (14) matched with the arc-shaped pressing plate (9) is arranged at the bottom of the fixing seat (10), and an accommodating groove (15) matched with the arc-shaped pressing plate (9) is formed in the inner side of the arc-shaped block (14).

4. The electrical variable fault indicator according to claim 1, wherein the arc-shaped shell (4) is provided with connecting ports (16) at both sides thereof, the connecting ports (16) are communicated with the mounting cavity (5), the connecting ports (16) are opposite to the elastic conductive block (2), and the auxiliary conductive block (7) is clamped in the corresponding connecting ports (16).

5. The electrical variable fault indicator according to claim 1, wherein the arc-shaped shell (4) is provided with a mounting opening (17) at the inner side, and a limiting plate (18) is mounted in the mounting opening (17).

6. An electrical variable fault indicator according to claim 1, characterised in that the non-hinged end of the arcuate housing (4) is secured to the body (1) by a resilient catch (19).