CN215932108U - Six-point contact detection device - Google Patents

Abstract

The utility model discloses a six-point contact detection device, which is used for detecting a wire socket and comprises movable contacts, wherein the movable contacts are provided with six groups, each movable contact comprises a contact finger, each wire socket is provided with a detection hole, and the contact fingers are inserted into the detection holes.

Description

Six-point contact detection device

Technical Field

The utility model belongs to the field of switch cabinets, and relates to a six-point contact detection device.

Background

Partial discharge refers to a discharge phenomenon occurring in a certain area in an insulation structure of electrical equipment, and if the partial discharge exists for a long time, the main insulation electrical strength of the equipment can be reduced and damaged under certain conditions. If the insulating structure has defects caused by high local electric field (uneven field intensity distribution), imperfect manufacturing process, decomposition of insulating organic matters during operation, cracking of solid insulation under the action of mechanical force and the like, insulation breakdown and local discharge are easy to occur at the parts during operation.

In actual production, the wire socket needs to be detected to remove unqualified products, but the current detection operation is complex, the detection efficiency is low, and the method effectively solves the problem.

Partial discharges are low power spark charges formed on the insulating layer and its surface. When partial discharges occur in large amounts, the integrity of the insulating cover is destroyed and electrical breakdown occurs. The periodic monitoring and timely detection of partial discharges, the diagnosis of switchgear and the measurement of partial discharges can prevent harmful consequences.

Diagnosing partial charge in a switchgear

For the diagnosis and measurement of partial discharges, instruments operating according to various methods are used: electrical, electromagnetic, acoustic, chemical, optical, and the like. These methods differ in the method of collecting information and the amount of data obtained during the measurement. The scope of open switching devices does not allow the use of devices that imply a direct connection of the sensor (e.g. inductive or capacitive) to the cable or core. In this case, a switch cabinet partial discharge detector will be used.

Is partial discharge monitoring required?

As is shown in practice and in the long-term operation of outdoor switchgear, the greatest damage to the equipment is not caused by the partial discharges themselves, but rather by their ultimate effect on the insulation. The discharges themselves are of low energy, but in general they create high loads that may render the device inoperable.

At high strength, breakthrough can occur and the integrity of the insulation is compromised, which can greatly shorten service life and increase the complexity of the repair work.

By measuring and determining the location of partial discharges, monitoring the condition of the equipment and diagnostic elements, you can undertake and provide timely assistance and eliminate defects

Along with the development of social productivity, people's requirement to camera control improves gradually, except small and exquisite, clear basic function, need camera control itself to satisfy more abominable service environment, for example, the solar camera that electric power tower installed, because electric power tower mounted position is up to tens meters, wind-force is stronger than ground, this needs can simple to operate and strong solar camera of anti-wind ability, and present solar panel is easily under the abominable weather, is covered by ice and snow, leads to the follow-up day after fine, also influences its power supply efficiency. Meanwhile, under the environment of wind, snow and the like, the solar camera shell is easy to become brittle and corrode, so that internal parts are in contact with the external environment to cause damage, the working cost of replacement of workers is increased, and the problem is effectively solved.

Disclosure of Invention

The utility model provides a six-point contact detection device for overcoming the defects of the prior art.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a six point contact detection device for detect line socket, its characterized in that: the movable contact comprises six groups, the movable contact comprises a contact finger, a line socket is provided with a detection hole, and the contact finger is inserted into the detection hole.

Further, the method comprises the following steps of; a support plate is arranged between the movable contact and the wire socket and serves as a detection platform of the wire socket to accommodate detection of multiple groups of wire sockets, a through cavity is formed in the support plate, and mounting holes for mounting the movable contacts are fixedly formed in the support plate in an annular array mode around the through cavity.

Further, the method comprises the following steps of; the line socket includes casing and contact, and casing inside has set firmly the socket, and the socket is whole to be the loudspeaker form for the insertion of bus connector, the casing upper end set firmly the slot with the socket intercommunication, and the slot is used for the installation of contact, and line socket tip has set firmly six and has set gradually the hole, inlays the downthehole nut of inlaying of installing, inlays the diameter of nut hole and is less than the diameter of inlaying the hole, and the inspection hole comprises inlaying the nut hole and inlaying the hole.

Further, the method comprises the following steps of; the movable contact is characterized by further comprising a positioning sleeve and a spring, the contact finger head is formed by integrally forming four sections of cylinders with different sizes and comprises a first cylinder, a second cylinder, a third cylinder and a fourth cylinder, the diameter of the first cylinder is smaller than that of the second cylinder, the diameter of the first cylinder is matched with an inner hole of an embedded nut, the diameter of the second cylinder is matched with that of an embedded hole, the diameter of the second cylinder is smaller than that of the third cylinder, the diameter of the third cylinder is larger than that of the fourth cylinder, and the spring sleeve is arranged on the outer surface of the fourth cylinder.

Further, the method comprises the following steps of; the positioning sleeve is internally provided with a through cavity, the diameter of the third cylinder is matched with the inner diameter of the through cavity, the diameter of the positioning sleeve is matched with the diameter of the mounting hole, the outer surface of the positioning sleeve is fixedly provided with a support ring, and the support ring is abutted against the support plate.

Further, the method comprises the following steps of; the abutting ring divides the positioning sleeve into two parts which are respectively positioned at two sides of the support plate, and the end surface of the positioning sleeve which is positioned at the same side of the support plate with the wire socket abuts against the wire socket to support the wire socket upwards.

Further, the method comprises the following steps of; the slot is fixedly provided with a bulge, the corresponding position of the contact is fixedly provided with a groove, and the bulge and the groove are matched to strengthen the fixed connection between the contact and the shell.

In conclusion, the utility model has the advantages that: the utility model designs six groups of movable contacts to be uniformly installed on the wire socket, so that the movable contacts are uniformly contacted with the wire socket, uniform detection on the wire socket is further realized, omnibearing detection on the wire socket is realized, the problem of partial discharge after the wire socket is installed on a switch cabinet is prevented, and meanwhile, the utility model designs a spring on the movable contacts, and realizes the automatic return function of the contact finger through the restoring force of the spring.

Drawings

FIG. 1 is a schematic view of the apparatus of the present invention.

Fig. 2 is a half-sectional view of the wire socket of the present invention.

Fig. 3 is a schematic view of the compression of the movable contact of the present invention.

Fig. 4 is a schematic sectional view of a-a in fig. 3.

Fig. 5 is a schematic view of the movable contact of the present invention in a relaxed state.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The utility model is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.

It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.

All directional indicators (such as up, down, left, right, front, rear, lateral, longitudinal … …) in the embodiments of the present invention are only used to explain the relative positional relationship between the components, the movement, etc. in a particular posture, and if the particular posture is changed, the directional indicator is changed accordingly.

The first embodiment is as follows:

as shown in fig. 1 to 5, a six-point contact detection device for detecting a wire socket 2 includes a movable contact 3, the movable contact 3 is provided with six groups, the movable contact 3 includes a finger 31, the wire socket 2 is provided with a detection hole 22, and the finger 31 is inserted into the detection hole 22.

Being provided with mounting panel 1 between movable contact 3 and line socket 2, this embodiment mounting panel 1 can hold multiunit line socket 2 and detect simultaneously as line socket 2's testing platform to raise the efficiency, be provided with on mounting panel 1 and run through chamber 11, set firmly the mounting hole 12 that is used for installing movable contact 3 around running through 11 annular array in chamber.

The wire socket 2 comprises a shell 20 and contacts 23, a socket 201 is fixedly arranged in the shell 20, the socket 201 is integrally horn-shaped and used for inserting a bus connector, a slot (not shown in the figure) communicated with the socket 201 is fixedly arranged at the upper end of the shell 20 and used for installing the contacts 23, specifically, a bulge is fixedly arranged in the slot, a groove is fixedly arranged at a position corresponding to the contact 23, the bulge is matched with the groove to effectively fix the contacts 23 and the shell 20 and strengthen the fixed connection between the contacts, six groups of embedded holes 22 are fixedly arranged at the end part of the wire socket 2, the quantity of the embedded holes is matched with that of the movable contacts 3, embedded nuts 21 are arranged in the embedded holes 22, the diameters of inner holes of the embedded nuts 21 are different from those of the embedded holes 22, the diameter of the inner holes of the embedded nuts 21 is smaller than that of the embedded holes 22, and a detection hole is formed by the inner holes of the embedded nuts 21 and the embedded holes 22.

The movable contact 3 further comprises a positioning sleeve 32 and a spring 33, the contact finger head 31 is formed by integrally forming four sections of cylinders with different sizes, and specifically comprises a first cylinder 311, a second cylinder 312, a third cylinder 313 and a fourth cylinder 314, the diameter of the first cylinder 311 is smaller than that of the second cylinder 312, the diameter of the first cylinder 311 is matched with the inner hole of the embedded nut 21, the diameter of the second cylinder 312 is matched with that of the embedded hole 22, the diameter of the second cylinder 312 is smaller than that of the third cylinder 313, the diameter of the third cylinder 313 is larger than that of the fourth cylinder 314, the spring 33 is sleeved on the outer surface of the fourth cylinder 314, a through cavity 322 is arranged in the positioning sleeve 32, the diameter of the third cylinder 313 is matched with the inner diameter of the through cavity 322, the diameter of the positioning sleeve 32 is matched with that of the mounting hole 12, a support ring 321 is fixedly arranged on the outer surface of the positioning sleeve 32, the support ring 321 is abutted against the support plate 1, so as to avoid excessive installation of the movable contact 3, whether the movable contact 3 is installed in place or not can be confirmed, the installation accuracy of the movable contacts 3 is guaranteed, in addition, the positioning sleeve 32 is divided into two parts by the abutting ring 321, the two parts are respectively located on two sides of the support plate 1, the end face of the positioning sleeve 32, which is located on the same side of the support plate 1 with the wire socket 2, abuts against the wire socket 2, the wire socket 2 is supported upwards, and the wire socket 2 is prevented from being in direct contact with the support plate 1 to influence the detection of other wire sockets 2.

As shown in fig. 3, the movable contact 3 is in a mounted state with the wire receptacle 2, the third column 313 is located in the through cavity 322, the spring 33 is located in an area formed by the third column 313, an end surface of the through cavity 322, an inner wall of the through cavity 322 and an outer surface of the fourth column 314, the spring 33 is in a compressed state, the wire receptacle 2 is detached from being mounted with the movable contact 3 after detection, and the contact finger 31 is ejected under the restoring action of the spring 33 as shown in fig. 5.

In the implementation process of the embodiment, six groups of movable contacts 3 are installed on the support plate 1 through the installation holes 12, when the line socket 2 is installed, the contact finger head 31 is inserted into the embedded nut 21 and embedded into the cavity, particularly, the first cylinder 311 is inserted into the embedded nut 21, the second cylinder 312 is located in the embedded hole 22, the line socket 2 is pressed down until the end face of the line socket 2 abuts against the end face of the positioning sleeve 32, the installation of the line socket 2, the movable contacts 3 and the support plate 1 is completed, the six groups of movable contacts 3 are uniformly installed on the line socket 2, the movable contacts 3 are uniformly contacted with the line socket 2, further the uniform detection on the line socket 2 is realized, the omnibearing detection on the line socket 2 is realized, and the problem of partial discharge after the line socket 2 is installed on the switch cabinet is prevented.

It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all 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.

Claims (7)

1. The utility model provides a six point contact detection device for detect line socket, its characterized in that: the movable contact comprises six groups, the movable contact comprises a contact finger, a line socket is provided with a detection hole, and the contact finger is inserted into the detection hole.

2. A six-point contact detecting device according to claim 1, wherein: a support plate is arranged between the movable contact and the wire socket and serves as a detection platform of the wire socket to accommodate detection of multiple groups of wire sockets, a through cavity is formed in the support plate, and mounting holes for mounting the movable contacts are fixedly formed in the support plate in an annular array mode around the through cavity.

3. A six-point contact detecting device according to claim 2, wherein: the line socket includes casing and contact, and casing inside has set firmly the socket, and the socket is whole to be the loudspeaker form for the insertion of bus connector, the casing upper end set firmly the slot with the socket intercommunication, and the slot is used for the installation of contact, and line socket tip has set firmly six and has set gradually the hole, inlays the downthehole nut of inlaying of installing, inlays the diameter of nut hole and is less than the diameter of inlaying the hole, and the inspection hole comprises inlaying the nut hole and inlaying the hole.

4. A six-point contact detecting device according to claim 3, wherein: the movable contact is characterized by further comprising a positioning sleeve and a spring, the contact finger head is formed by integrally forming four sections of cylinders with different sizes and comprises a first cylinder, a second cylinder, a third cylinder and a fourth cylinder, the diameter of the first cylinder is smaller than that of the second cylinder, the diameter of the first cylinder is matched with an inner hole of an embedded nut, the diameter of the second cylinder is matched with that of an embedded hole, the diameter of the second cylinder is smaller than that of the third cylinder, the diameter of the third cylinder is larger than that of the fourth cylinder, and the spring sleeve is arranged on the outer surface of the fourth cylinder.

5. A six-point contact detecting device according to claim 4, wherein: the positioning sleeve is internally provided with a through cavity, the diameter of the third cylinder is matched with the inner diameter of the through cavity, the diameter of the positioning sleeve is matched with the diameter of the mounting hole, the outer surface of the positioning sleeve is fixedly provided with a support ring, and the support ring is abutted against the support plate.

6. A six-point contact detecting device according to claim 5, wherein: the abutting ring divides the positioning sleeve into two parts which are respectively positioned at two sides of the support plate, and the end surface of the positioning sleeve which is positioned at the same side of the support plate with the wire socket abuts against the wire socket to support the wire socket upwards.

7. A six-point contact detecting device according to claim 3, wherein: the slot is fixedly provided with a bulge, the corresponding position of the contact is fixedly provided with a groove, and the bulge and the groove are matched to strengthen the fixed connection between the contact and the shell.

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