CN216670081U

CN216670081U - Novel digital megohmmeter with strong electric field induction interference resistance

Info

Publication number: CN216670081U
Application number: CN202123419236.3U
Authority: CN
Inventors: 何捷
Original assignee: Wuhan Xinyanbo Power Equipment Co ltd
Current assignee: Wuhan Xinyanbo Power Equipment Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-06-03
Anticipated expiration: 2031-12-31

Abstract

The utility model relates to the technical field of electric power construction, in particular to a novel digital megohmmeter with strong electric field induction interference resistance, which comprises a megohmmeter body, wherein the output end of the megohmmeter body is connected with a connecting wire, a connecting head is installed on the connecting wire, the top of the connecting head is connected with a detection head, the connecting wire and the connecting head are respectively composed of a rubber tube, a sealing tube and a wire tube, the inner wall of the rubber tube is connected with the sealing tube, the inner wall of the sealing tube in the connecting head is also connected with a metal ring, the metal ring and the metal tube are integrally formed, a coil is wound on the metal ring, a detection wire is installed in the wire tube and is connected with the detection head, the utility model upgrades the detection end of the megohmmeter, reduces the detection signal input channel of the detection end while carrying out electric field shielding on the detection end through an anti-interference coil, and improves the uniqueness of the monitoring data of the detection end, interference to data reception is reduced, thereby improving data authenticity.

Description

Novel digital megohmmeter with strong electric field induction interference resistance

Technical Field

The utility model relates to the technical field of electric power construction, in particular to a novel digital megohmmeter with strong electric field induction interference resistance.

Background

The megohmmeter is a commonly used measuring instrument for electricians, and is mainly used for checking insulation resistance of electrical equipment, household appliances or electrical lines to the ground and between phases so as to ensure that the equipment, the appliances and the lines work in a normal state and avoid accidents such as electric shock casualties, equipment damage and the like.

The megger is influenced by a nearby electric field when in use to cause the problem of inaccurate test data, the prior art mainly aims at the problem of inaccurate test data caused by the fact that the megger body is upgraded to reduce the influence of an external environment, but the mode can not directly aim at the detection end of the megger to carry out anti-interference upgrade, so that the detection end of the megger body is still in an interfered state after the aim of resisting interference is fulfilled, the data detected by the detection end in the interfered state is directly transmitted to the megger body, and finally the actual data on the megger body is the data detected in the interfered state, and still has authenticity, and the megger is inconvenient to use and use

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel digital megohmmeter with strong electric field induction interference resistance so as to solve the problems in the background technology.

For realizing above-mentioned purpose, a novel digital megohmmeter of anti electric field of high strength response interference ability, including the table body, the output of the table body is connected with the connecting wire, install the connector on the connecting wire, the top of connector is connected with detects the head, connecting wire and connector constitute by rubber tube, sealed tube and spool, the inner wall and the sealed tube of rubber tube are connected, sealed tube inner wall in the connecting wire still is connected with the tubular metal resonator, the inner wall and the spool of tubular metal resonator are connected, sealed tube inner wall in the connector still is connected with the becket, becket and tubular metal resonator integrated into one piece, the wire winding is connected with the coil on the becket, install the detection line in the spool, the detection line is connected with detecting the head.

Preferably: the meter body is electrically connected with the detection line in the connecting line, and the line pipe is a heat-shrinkable pipe.

Preferably, the following components: the metal tube is an aluminum foil tube, and two ends of the metal tube are sealed through sealing tubes.

Preferably: the coil is wound on the metal ring through the through holes, and the metal ring is a hollow tube.

Preferably: the coil is woven by multiunit copper line and is produced, the both ends interconnect of coil.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model upgrades the detection end of the megger, reduces the detection signal input channel of the detection end while shielding the detection end by the anti-interference coil, improves the uniqueness of the monitoring data of the detection end, reduces the receiving of the interference data, and improves the authenticity of the data.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a novel digital megohmmeter with strong resistance to electric field induced interference according to the present invention;

FIG. 2 is a schematic diagram of a connection line structure of a novel digital megohmmeter with strong resistance to electric field induced interference according to the present invention;

fig. 3 is a schematic diagram of a novel digital megger metal ring structure with strong electric field induced interference resistance.

FIG. 4 is a schematic diagram of a connection structure of a novel digital megger metal ring with strong electric field induced interference resistance

In the figure:

100. a watch body; 110. a connecting wire; 111. a rubber tube; 112. a sealing tube; 113. a metal tube; 114. a conduit;

115. a metal ring; 116. a coil; 120. a connector; 130. and a detection head.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-4, a digital megohmmeter with strong resistance to electric field induced interference according to a preferred embodiment of the present invention includes a watch body 100, the output end of the watch body 100 is connected with a connecting wire 110, the connecting wire 110 is provided with a connector 120, the top of the connector 120 is connected with a detection head 130, the connecting line 110 and the connector 120 are composed of a rubber tube 111, a sealing tube 112 and a line tube 114, the inner wall of the rubber tube 111 is connected with a sealing tube 112, the inner wall of the sealing tube 112 in the connecting wire 110 is also connected with a metal tube 113, the inner wall of the metal tube 113 is connected with the line tube 114, the inner wall of the sealing tube 112 in the connector 120 is also connected with a metal ring 115, the metal ring 115 is integrally formed with the metal tube 113, a coil 116 is wound around the metal ring 115, a detection line is arranged in the conduit 114 and is connected with the detection head 130; the detection of table body 100 cooperation connecting wire 110 realization electronic equipment resistance, connector 120 person's use of facilitating the use, conveniently carry out electric field shielding operation simultaneously, rubber tube 111 is used for improving insulating properties, sealed tube 112 is used for improving the inside sealing performance of connecting wire 110, spool 114 is used for carrying out the cladding to inside detection line, prevent with the contact of outside tubular metal resonator 113, tubular metal resonator 113 is used for carrying out shielding operation to outside electric field, the reduction is used for installing coil 116 to the influence becket 115 of inside detection line, carry out shielding operation to inside electromagnetic field, make things convenient for the influence of outside electromagnetic field to inside detection line, improve detection efficiency.

The meter body 100 is electrically connected with a detection line in the connection line 110, and the line tube 114 is a heat shrink tube; the pyrocondensation pipe conveniently coats the detection line, improves the contact surface, makes things convenient for data transmission, improves inside insulating nature simultaneously.

The metal pipe 113 is an aluminum foil pipe, and two ends of the metal pipe 113 are sealed by a sealing pipe 112; the shielding of aluminium foil pipe is effectual, and is with low costs simultaneously, conveniently buckles, conveniently transports, and longe-lived simultaneously can effectually reduce external force and cause the emergence of connecting wire 110 damage scheduling problem, has improved the shielding performance of connecting wire 110 simultaneously.

A plurality of through holes are formed in the metal ring 115, the coil 116 is wound on the metal ring 115 through the through holes, and the metal ring 115 is a hollow tube; the through hole is used for fixing the coil 116, conveniently shields the electric field that detects head 130 position, reduces the interference that produces when the electric field detects head 130 on every side simultaneously, improves the detection performance, facilitates the use.

The coil 116 is produced by weaving a plurality of groups of copper wires, and two ends of the coil 116 are connected with each other; the copper wire is woven and is passed through the detection and produce internal magnetic field, adopts the loop configuration to realize the inside of magnetic field and seals simultaneously, and the effectual influence that prevents external magnetic field improves the performance that detects.

In this embodiment, the output end of the meter body 100 is connected to the connection lines 110, the detection heads 130 of the two connection lines 110 are placed at two ends of an element to be detected, the knob on the meter body 100 is used to adjust data to be detected, the detection is started after the detection heads 130 are placed, at this time, when a surrounding magnetic field needs to be input, the surrounding magnetic field is shielded by the metal ring 115 and the coil 116 wound around the outer wall of the metal ring, so that generated data can only be input into the detection lines from the detection heads 130, and meanwhile, when the detection lines transmit data, the metal tube 113 shields the surrounding electric field, thereby preventing errors from being caused in the transmission process and influencing the final data, and the shielded data is directly displayed by the display on the meter body 100.

While the utility model has been described in further detail in connection with specific embodiments thereof, it will be understood that the utility model is not limited thereto, and that various other modifications and substitutions may be made by those skilled in the art without departing from the spirit of the utility model, which should be considered to be within the scope of the utility model as defined by the appended claims.

Claims

1. A novel digital megohmmeter with strong electric field induced interference resistance comprises a meter body (100), and is characterized in that: the output end of the watch body (100) is connected with a connecting wire (110), the connecting wire (110) is provided with a connector (120), the top of the connector (120) is connected with a detection head (130), the connecting line (110) and the connector (120) are both composed of a rubber tube (111), a sealing tube (112) and a line tube (114), the inner wall of the rubber tube (111) is connected with a sealing tube (112), the inner wall of the sealing tube (112) in the connecting line (110) is also connected with a metal tube (113), the inner wall of the metal pipe (113) is connected with the line pipe (114), the inner wall of the sealing pipe (112) in the connector (120) is also connected with a metal ring (115), the metal ring (115) and the metal pipe (113) are integrally formed, a coil (116) is wound on the metal ring (115), a detection line is installed in the line pipe (114), and the detection line is connected with a detection head (130).

2. The novel digital megohmmeter with strong electric field induced interference resistance according to claim 1, wherein: the meter body (100) is electrically connected with a detection line in the connecting line (110), and the line pipe (114) is a heat shrink pipe.

3. The novel digital megohmmeter with strong electric field induced interference resistance according to claim 1, wherein: the metal pipe (113) is an aluminum foil pipe, and two ends of the metal pipe (113) are sealed through sealing pipes (112).

4. The novel digital megohmmeter with strong electric field induced interference resistance according to claim 1, wherein: the metal ring (115) is provided with a plurality of through holes, the coil (116) is wound on the metal ring (115) through the through holes, and the metal ring (115) is a hollow tube.

5. The novel digital megohmmeter with strong electric field induced interference resistance according to claim 1, wherein: the coil (116) is produced by weaving a plurality of groups of copper wires, and two ends of the coil (116) are connected with each other.