CN210110674U

CN210110674U - U-shaped connecting busbar for drawer type universal circuit breaker

Info

Publication number: CN210110674U
Application number: CN201921018827.XU
Authority: CN
Inventors: 张星; 李志伟; 周光赵
Original assignee: SHANDONG TAIKAI ELECTRICAL CO Ltd
Current assignee: SHANDONG TAIKAI ELECTRICAL CO Ltd
Priority date: 2019-07-03
Filing date: 2019-07-03
Publication date: 2020-02-21
Anticipated expiration: 2029-07-03

Abstract

The utility model discloses a U-shaped connecting bus bar for drawer type universal circuit breaker, which comprises a bus contact and a U-shaped connecting bar, wherein the bus contact is a bridge contact, the bus contact is connected with the U-shaped connecting bar in an interference fit way, the section of the U-shaped connecting bar is U-shaped, the U-shaped connecting bar comprises two contact plates and a bottom plate, the bottom plate and the two contact plates enclose a groove shape with two open ends, the bottom plate is connected with a bus switch contact seat, the upper half part of the contact plate is a straight panel and is vertical to the bottom plate, the lower end part is provided with a bent part which is connected with the bottom plate, the distance between the two contact plates is increased by the bent parts of the two contact plates, an extended structure at the bottom of the U-shaped connecting bar is formed, the contact area of the U-shaped connecting bar and the bus contact is increased, the contact area of an electrical connection system is effectively increased, the efficiency of an, thereby improving the reliability of the circuit breaker.

Description

U-shaped connecting busbar for drawer type universal circuit breaker

Technical Field

The utility model relates to a low tension switchgear technical field specifically is a drawer type is female arranging of U type connection for universal circuit breaker.

Background

The intelligent universal circuit breaker is used as a power-level protective electrical appliance, has the functions of overload, short circuit, phase loss, overvoltage, undervoltage, grounding protection and the like, can protect a circuit and electrical equipment from being damaged, and can also be used for grounding faults possibly existing in the circuit, so that the intelligent universal circuit breaker is trusted and used by vast power consumers.

The method is also widely applied to the field of new energy, but the field of new energy, particularly the field of photovoltaic and wind power operation, has severe environment, such as high altitude, high salt fog, moisture and the like. The performance of the circuit breaker cannot be reduced, temperature rise is one of important indexes of the circuit breaker, and under the environment of long-term high temperature and the like, the insulativity of an insulating part is reduced, so that interphase short circuit is caused. The connected system between body and the drawer seat is the weak link that generates heat, especially connects female the arranging structure, and it is little that current traditional structural design exists the connection contact surface, the problem that the temperature rise is high, and the circuit breaker that leads to alternate short circuit and burn out the contact under this kind of application environment is not few.

Disclosure of Invention

The utility model aims at providing a drawer type is female arranging of U type connection for universal circuit breaker, its structural design is reasonable, can effective control body and drawer seat temperature rise, improves the circuit breaker security.

In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows:

the utility model provides a drawer-type universal circuit breaker is with U type connecting bus-bar, its whole cross-section is the U shape, it includes two contact plates, bottom plate and two contact plates enclose into U shape cell type, the bottom plate is connected with bus-bar switch contact seat, the first half of contact plate is straight panel, perpendicular with the bottom plate, the lower tip is provided with the turn and is connected with the bottom plate, the turn of two contact plates makes two contact plate here increase apart from, constitute the extension structure of U type run-on bottom, improve the area of contact of U type run-on and bus-bar switch contact seat.

The bottom plate back be the plane, be connected for face contact with the terminal surface of bus switch contact seat, the bottom plate back be provided with the line, for heliciform or twill, and the contact surface of bus switch contact seat also is provided with the line, form crisscross decorative pattern connection line when bottom plate is connected with the contact seat to form good equal electrically conductive passageway of some, improve the utilization ratio of electrically conductive contact surface.

Furthermore, the U-shaped connecting row is vertically connected, namely the contact plates are vertically arranged, the formed grooves are vertically arranged, and the generated warm heat can form an upper heat dissipation channel and a lower heat dissipation channel, so that the heat dissipation efficiency of the circuit breaker is effectively improved.

The touch plate and the bottom plate are connected in an integrated mode and are formed by bending a whole plate.

The bottom plate is further provided with bolt holes which are connected with the contact seat through bolts.

The outer end of the contact plate is in a smooth arc shape or the outer end of the contact plate is provided with an inclined plane as a leading-in structure, so that the contact force can be effectively reduced when the U-shaped connecting row is matched with the bridge-shaped contact, and the U-shaped connecting row and the bridge-shaped contact are connected more smoothly.

The device is connected with a contact seat of a bus switch and used as a contact, and a vertical conventional bridge type contact is matched and connected with the contact.

The utility model has the advantages that: compared with a bus connecting bar of a traditional bus system, the device adopts the U-shaped connecting bar to be matched and connected with the bridge-shaped contacts, two contact plates of one connecting bar are connected with the two bridge-shaped contacts, the contact surface is enlarged, and the U-shaped connecting bar is reasonable in structural design, vertically arranged and good in heat dissipation performance; the connecting row is in contact connection with the contact seat through the veins, so that the electric conduction is uniform, and the temperature rise is low.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic view of the usage state of the present invention;

fig. 4 is a schematic view of the front side of the contact seat of the bus switch of the present invention.

Detailed Description

The U-shaped connecting bus-bar for the drawer-type universal circuit breaker shown in the attached drawing has a U-shaped overall section, and comprises two contact plates 1 and a bottom plate 2, wherein the bottom plate 2 and the two contact plates 1 are enclosed into a U-shaped groove with an open front end and an open upper end and a open lower end, the bottom plate 2 is connected with a bus switch contact seat 3, the upper half part of the contact plate 1 is a straight plate and is perpendicular to the bottom plate 2, the lower end part of the contact plate is provided with a bent part 5 which is connected with the bottom plate 2, the distance between the two contact plates 1 is increased by the bent parts 5 of the two contact plates, an extension structure at the bottom of the U-shaped connecting bar is formed, and the contact area between the U-shaped connecting bar.

The bottom plate 2 is further provided with bolt holes 4 which are connected with the contact seat 3 through bolts.

The outer end of the contact plate 1 is in a smooth arc shape or the outer end of the contact plate is provided with an inclined plane as a leading-in structure, so that the contact force can be effectively reduced when the U-shaped connecting row is matched with the bridge-shaped contact, and the U-shaped connecting row and the bridge-shaped contact are connected more smoothly.

The back of the bottom plate 2 is a plane and is in surface contact connection with the end face of the bus switch contact seat 3, the back of the bottom plate 2 is provided with veins 6 which are spiral or twill, the contact face of the bus switch contact seat 3 is also provided with veins, and staggered patterns are formed when the bottom plate 2 is connected with the contact seat 3 to connect the veins, so that a good uniform point conductive channel is formed, and the utilization rate of the conductive contact face is improved.

Furthermore, the U-shaped connecting row is vertically connected, namely the contact plate 1 is vertically arranged, the formed groove is vertically arranged, the upper end and the lower end of the groove are opened, the generated warm heat can form an upper heat dissipation channel and a lower heat dissipation channel, and the heat dissipation efficiency of the circuit breaker is effectively improved.

The touch panel 1 and the bottom plate 2 are connected in an integrated manner and are formed by bending a whole panel.

The device is connected with a contact seat of a bus switch and used as a contact, and is matched and connected with a vertical conventional bridge-type contact which is in a clamping structure, such as a contact for a circuit breaker with the patent number of 2013208816305 or 2012102300410.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, without departing from the principles of the present invention, several improvements can be made, and these improvements should also be regarded as the protection scope of the present invention without creative work.

Claims

1. A U-shaped connecting bus bar for a drawer type universal circuit breaker is characterized in that the whole section of the U-shaped connecting bus bar is U-shaped and comprises two contact plates and a bottom plate, the bottom plate and the two contact plates are encircled to form a U-shaped groove, the bottom plate is connected with a bus switch contact seat, the upper half part of each contact plate is a straight plate and is vertical to the bottom plate, the lower end part of each contact plate is provided with a bent part which is connected with the bottom plate, and the distance between the two contact plates is increased due to the bent parts of the two contact plates; the back surface of the bottom plate is a plane and is in surface contact connection with the end surface of the bus switch contact seat, and the back surface of the bottom plate is provided with veins which are spiral or twill.

2. The U-shaped connecting busbar for the drawer type universal circuit breaker as claimed in claim 1, wherein the contact surface of the contact seat of the bus switch is provided with a texture.

3. The U-shaped connecting busbar for the drawer type universal circuit breaker as claimed in claim 1, wherein the contact plate is vertically arranged.

4. The U-shaped connecting bus bar for the drawer type universal circuit breaker as claimed in claim 1, wherein the contact plate and the bottom plate are integrally connected and formed by bending a whole plate.

5. The U-shaped connecting busbar for the drawer type universal circuit breaker as claimed in claim 1, wherein the bottom plate is provided with bolt holes and is connected with the contact seat through bolts; the outer end of the contact plate is in a smooth arc shape or the outer end of the contact plate is provided with an inclined plane.