CN111276843A - A snap-in busbar connector for switchgear - Google Patents

Abstract

The embodiment of the application provides a bayonet bus connector for cubical switchboard includes: the conductive contact pin comprises a sleeve, a conductive layer, a conductive contact finger, a spring, a first conductive male head with a cap and a second conductive male head with a cap; the sleeve is sleeved on the outer surface of the conducting layer; the spring penetrates through the conductive layer, and conductive contact fingers are distributed on the inner surface of the conductive layer at intervals; one side of the first conductive male head with the cap penetrates through one end of the sleeve, one side of the circular cap of the first conductive male head with the cap is in contact with one end of the spring, and the other end of the spring is in contact with one side of the circular cap of the second conductive male head with the cap; the first capped conductive male head, the spring and the second capped conductive male head form a compression rebound mechanism. The bus connector shown in the embodiment of the application can effectively realize reliable connection between switch cabinets, and overcomes the defect that gas must be filled on site when a gas insulated bus is installed; the bus joint is protected, and meanwhile, the sealing performance of the equipment is improved.

Description

A snap-in busbar connector for switchgear

technical field

The invention relates to an overvoltage monitoring sensor, in particular to a snap-in busbar connector for a switch cabinet.

Background technique

As the key technology of connection between switch cabinets, busbar connection technology is directly related to the performance and reliable operation of the product. Therefore, it is a problem that practitioners must consider that the busbar connector meets the safety and reliability requirements.

Existing busbar connectors are mainly divided into two types: ①gas insulated busbar; ②plug-in solid insulated busbar. Since the gas-insulated busbar must be inflated on site when in use, it needs to go through the process of vacuuming, gas filling, and leak detection, and due to the complexity of the installation environment, dust, conductive particles, and moisture may enter the inflatable area, thereby affecting the insulation of the equipment. performance. There are also top-width plug-in insulated busbars on the market. Although this structure does not need to worry about the alignment of the three-phase busbars when merging cabinets, the connection is reliable, and the contact pressure at the insulation contact is stable, but when the cabinet exceeds three sides, it needs to be After connecting the insulating busbar of the multi-faceted cabinet and the four-way silicone rubber sleeve in series, insert them into the ring bushing socket on the top of each cabinet together, and then tighten the insulating busbar in turn. Generally, multiple installers are required to cooperate with each other. Therefore, the present invention adopts a plug-in bus connection mode, further designs a snap-in structure, and improves the installation efficiency under the condition of ensuring the reliability after the cabinets are combined.

The effect of the plug-in busbar connector is also affected by the position and dimensional accuracy of the two connected cabinets, and the rigidity and flatness of the side plate of the air box are strictly required, and a slight deviation can easily lead to unreliable connection. The switchgear box is heavy, difficult to move, and easy to bump the busbar head.

SUMMARY OF THE INVENTION

The purpose of the technical solutions shown in the embodiments of the present application is to provide a snap-in busbar connector for a switch cabinet, so as to solve the technical problems existing in the prior art.

The present application provides a snap-in busbar connector for a switch cabinet, comprising: a sleeve, a conductive layer, a conductive contact finger, a spring, a first conductive male head with a cap and a second conductive male head with a cap;

the sleeve is sleeved on the outer surface of the conductive layer;

The spring penetrates through the inside of the conductive layer, and conductive contact fingers are distributed on the inner surface of the conductive layer at intervals;

One side of the first capped conductive male head passes through one end of the sleeve, one side of the circular cap of the first capped conductive male head is in contact with one end of the spring, and the other end of the spring is in contact with one end of the spring. One end is in contact with one side of the circular cap of the second capped conductive male head; the first capped conductive male head, the spring and the second capped conductive male head form a compression and rebound mechanism.

Optionally, it also includes: an insulating layer and a shielding layer;

The outer portion of the conductive layer is sequentially covered with the shielding layer and the insulating layer;

The sleeve is sleeved on the outer surface of the insulating layer.

Optionally, one side of the first capped conductive male head is T-shaped; one side of the second capped conductive male head is T-shaped.

Optionally, when the connector is used to connect two switch cabinets, the two switch cabinets respectively drive the first conductive male head with a cap and the second conductive male head with a cap to move relatively, and the first conductive male head with a cap and the second conductive male head with a cap move relatively The springs between the cap conductive males are compressed, the first capped conductive males are in contact with the conductive fingers on the inner surface of the conductive layer for conduction; the second capped conductive males are in contact with the conductive fingers on the inner surface of the conductive layer for conduction.

Optionally, it further includes: a first spring contact finger and a second spring contact finger;

The first spring contact fingers are provided on the outer surface of the cylindrical body part of the first capped conductive male head; the second spring contact fingers are provided on the outer surface of the cylindrical body part of the second capped conductive male head.

Optionally, the sleeve is made of rubber.

Optionally, one side of the first capped conductive male head is clamped with one end of the sleeve; one side of the second capped conductive male head is clamped with the other end of the sleeve.

It can be known from the above technical solutions that an embodiment of the present application provides a snap-in busbar connector for a switch cabinet, comprising: a bushing, a conductive layer, a conductive contact finger, a spring, a first conductive male head with a cap, and a second conductive plug with a cap a male head; the sleeve is sleeved on the outer surface of the conductive layer; the spring penetrates through the inner surface of the conductive layer, and conductive contact fingers are distributed at intervals on the inner surface of the conductive layer; the first capped conductive male One side of the head passes through one end of the sleeve, one side of the circular cap of the first capped conductive male is in contact with one end of the spring, and the other end of the spring is in contact with the second cap One side of the circular cap of the conductive male head is in contact; the first conductive male head with a cap, the spring and the second conductive male head with a cap form a compression and rebound mechanism. The busbar connectors shown in the embodiments of the present application can effectively realize reliable connection between switch cabinets, overcome the disadvantage that gas-insulated busbars must be inflated on site during installation, protect the busbar joints, and improve the sealing performance of the equipment;

Further, one side of the first capped conductive male head is clamped with one end of the sleeve; one side of the second capped conductive male head is clamped with the other end of the sleeve. The snap-in design has no current bottleneck phenomenon;

Further, each phase of the main busbar only needs one busbar connector, which can carry a large current of 2500A to 3150A.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some of the present invention. In the embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

FIG. 1 is a schematic diagram of a snap-in busbar connector for a switch cabinet according to a preferred embodiment.

Among them, 1-sleeve; 2-insulation layer; 3-shield layer; 4-conductive layer; 5-conductive contact finger; 6-spring; 7-first conductive male head with cap 8-second conductive male head with cap ; 9 - the first spring contact finger; 10 - the second spring contact finger.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Referring to FIG. 1 , an embodiment of the present application provides a snap-in busbar connector for a switch cabinet, including: a sleeve 1 , a conductive layer 4 , a conductive contact finger 5 , a spring 6 , a first capped conductive male head 7 and a second Capped conductive male header 8;

The sleeve 1 is sleeved on the outer surface of the conductive layer 4;

The spring 6 runs through the interior of the conductive layer 4, and the inner surface of the conductive layer 4 is spaced with conductive contact fingers 5;

One side of the first capped conductive male head 7 passes through one end of the sleeve 1, and one side of the circular cap of the first capped conductive male head 7 is in contact with one end of the spring 6, so The other end of the spring 6 is in contact with one side of the circular cap of the second capped conductive male head 8; the first capped conductive male head 7, the spring 6 and the second capped conductive male head 8 form a compression rebound mechanism.

Optionally, the sleeve 1 is made of rubber. The main body of the busbar connector is connected by a rubber sleeve 1, and the flexibility of the material can reduce the asymmetry problem caused by the poor accuracy between the two switch cabinets connecting the busbar grooves, and achieve tight installation.

Optionally, one side of the first capped conductive male head 7 is T-shaped; one side of the second capped conductive male head 8 is T-shaped. Optionally, one side of the first capped conductive male head 7 is clamped with one end of the sleeve 1 ; one side of the second capped conductive male head 8 is clamped with the other end of the sleeve 1 . catch. The inlet design has no current bottleneck phenomenon; only one busbar connector is required for each phase of the busbar, which can carry a large current of 2500A to 3150A.

Optionally, when the connector is used to connect two switch cabinets, the two switch cabinets respectively drive the first conductive male head 7 with a cap and the second conductive male head 8 with a cap to move relative to each other, and the first conductive male head 7 with a cap and the The spring 6 between the second capped conductive males 8 is compressed, and the first capped conductive males 7 are in contact with the conductive contact fingers 5 on the inner surface of the conductive layer to conduct electricity; the second capped conductive males 8 and the inner surface of the conductive layer The conductive contact fingers 5 are in contact with the conductive.

Optionally, it also includes: a first spring contact finger 9 and a second spring contact finger 10;

The outer surface of the cylindrical portion of the first capped conductive male head 7 has the first spring contact finger 9; the outer surface of the cylindrical portion of the second capped conductive male head 8 has the second spring contact finger 10.

There are first spring contact fingers 9 on the outer surface of the cylindrical part of the first capped conductive male head 7, and the first spring contact fingers 9 play the role of fixing the first capped conductive male head 7 and the busbar of the switch cabinet, so that the connector is firmly The busbar is firmly stuck, and is conducive to the full contact of the conductive surface; the outer surface of the cylindrical part of the second capped conductive male head 8 has a second spring contact finger 10, and the first spring contact finger 10 is used to fix the second capped conductive male The function of the head 8 and the switchgear busway makes the connector firmly clamp the busway, and is conducive to the full contact of the conductive surface.

Optionally, it also includes: an insulating layer 2 and a shielding layer 3;

The outer portion of the conductive layer 4 is sequentially covered with the shielding layer 3 and the insulating layer 2;

The sleeve 1 is sleeved on the outer surface of the insulating layer 2 .

Insulating layer 2 The main function of the insulating layer is to prevent the metal conductor and the conductive layer from touching each other. The requirements for the insulating layer in this application are good flexibility and certain mechanical strength, high insulation resistance value, and small loss to electromagnetic waves. The insulating layer of the present application is generally made of high-quality plastic.

Shielding layer 3, the shielding layer is mainly made of non-magnetic materials such as copper and aluminum, and the thickness is very thin, far less than the skin depth of the metal material at the frequency of use. The effect of the shielding layer is due to the grounding of the shielding layer. The form of grounding The difference will directly affect the shielding effect. The shielding layer can prevent the line from radiating electromagnetic energy.

It can be known from the above technical solutions that an embodiment of the present application provides a snap-in busbar connector for a switch cabinet, comprising: a bushing, a conductive layer, a conductive contact finger, a spring, a first conductive male head with a cap, and a second conductive plug with a cap a male head; the sleeve is sleeved on the outer surface of the conductive layer; the spring penetrates through the inner surface of the conductive layer, and conductive contact fingers are distributed at intervals on the inner surface of the conductive layer; the first capped conductive male One side of the head passes through one end of the sleeve, one side of the circular cap of the first capped conductive male is in contact with one end of the spring, and the other end of the spring is in contact with the second cap One side of the circular cap of the conductive male head is in contact; the first conductive male head with a cap, the spring and the second conductive male head with a cap form a compression and rebound mechanism. The busbar connectors shown in the embodiments of the present application can effectively realize reliable connection between switch cabinets, overcome the disadvantage that gas-insulated busbars must be inflated on site during installation, protect the busbar joints, and improve the sealing performance of the equipment;

Further, one side of the first capped conductive male head is clamped with one end of the sleeve; one side of the second capped conductive male head is clamped with the other end of the sleeve. The snap-in design has no current bottleneck phenomenon;

Further, each phase of the main busbar only needs one busbar connector, which can carry a large current of 2500A to 3150A.

Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses or adaptations of the invention which follow the general principles of the invention and which include common knowledge or conventional techniques in the art not disclosed by the invention . The specification and examples are to be regarded as exemplary only, with the true scope and spirit of the invention being indicated by the following claims.

It should be understood that the present invention is not limited to the precise structures described above and illustrated in the accompanying drawings, and that various modifications and changes may be made without departing from its scope. The scope of the present invention is limited only by the appended claims.

Claims (7)

1. A snap-in busbar connector for a switch cabinet, characterized in that it comprises: a sleeve (1), a conductive layer (4), a conductive contact finger (5), a spring (6), a first capped conductive male head (7) and a second capped conductive male head (8); the sleeve (1) is sleeved on the outer surface of the conductive layer (4); The spring (6) runs through the interior of the conductive layer (4), and conductive contact fingers (5) are distributed on the inner surface of the conductive layer (4) at intervals; One side of the first capped conductive male head (7) passes through one end of the sleeve (1), and one side of the circular cap of the first capped conductive male head (7) is connected to the spring One end of (6) is in contact, and the other end of the spring (6) is in contact with one side of the circular cap of the second capped conductive male head (8); the first capped conductive male head (7), so The spring (6) and the second conductive male head (8) with a cap form a compression and rebound mechanism. 2. The connector according to claim 1, characterized in that, further comprising: an insulating layer (2) and a shielding layer (3); The outer portion of the conductive layer (4) is sequentially covered with the shielding layer (3) and the insulating layer (2); The sleeve (1) is sleeved on the outer surface of the insulating layer (2). 3. The connector according to claim 2, characterized in that, one side of the first capped conductive male head (7) is T-shaped; one side of the second capped conductive male head (8) The side is T-shaped. 4. The connector according to claim 1, characterized in that, when the connector is used to connect two switch cabinets, the two switch cabinets drive the first capped conductive male head (7) and the second capped conductive male head respectively The head (8) moves relatively, the spring (6) between the first conductive male head with cap (7) and the second conductive male head with cap (8) is compressed, the first conductive male head with cap (7) and the conductive layer The conductive contact fingers (5) on the inner surface are in contact and conduct electricity; the second capped conductive male head (8) contacts and conducts electricity with the conductive contact fingers (5) on the inner surface of the conductive layer. 5. The connector according to any one of claims 1-4, characterized in that, further comprising: a first spring contact finger (9) and a second spring contact finger (10); The first spring contact finger (9) is provided on the outer surface of the cylindrical body part of the first capped conductive male head (7); the outer surface of the cylindrical body part of the second capped conductive male head (8) is provided with Describe the second spring contact finger (10). 6. The connector according to claim 5, wherein the sleeve (1) is made of rubber. 7. The connector according to claim 5, characterized in that, one side of the first capped conductive male head (7) is clamped with one end of the sleeve (1); the second capped One side of the conductive male head (8) is clamped with the other end of the sleeve (1).

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