CN203339078U

CN203339078U - Direct-current circuit breaker with connecting bars

Info

Publication number: CN203339078U
Application number: CN2013203964368U
Authority: CN
Inventors: 黄银芳; 柳立豪
Original assignee: Schneider Electric SE
Current assignee: Schneider Electric SE
Priority date: 2013-07-04
Filing date: 2013-07-04
Publication date: 2013-12-11
Anticipated expiration: 2023-07-04

Abstract

The utility model provides a direct-current circuit breaker with connecting bars. Disconnection units of the direct-current circuit breaker can be connected in advance and heat radiation of the direct-current circuit breaker can be facilitated. The technical scheme is that the direct-current circuit breaker with connecting bars comprises a shell in which a plurality of disconnection units are arranged, wherein at least two of the disconnection units are connected in series outside the shell by one connecting bar. Temperature rise of the direct-current circuit breaker with the connecting bars according to the utility model in the using process can be effectively reduced.

Description

There is the DC circuit breaker that connects row

Technical field

The utility model relates to the DC circuit breaker field, more particularly, relates to and has the DC circuit breaker that connects row.

Background technology

While working under high working voltage, existing DC circuit breaker adopts the mode of connection of multibreak series connection usually, to improve the interrupting performance of DC circuit breaker.That is, while working under high working voltage, DC circuit breaker comprises a plurality of switching units, and the user is connected in series a plurality of switching units to obtain the DC circuit breaker of expectation.Usually the user uses cable to be connected in series a plurality of switching units.Occurred the application scheme of various DC circuit breaker wiring in prior art, at the external wiring terminal place of a plurality of switching units of DC circuit breaker, carried out wiring, made a plurality of switching units of DC circuit breaker be together in series to form the series connection breakpoint.But because the user need to certainly be about to a plurality of switching units and be connected, usually can use outside cable to carry out at the scene wiring, be unfavorable for that the user operates, and increased user's use cost.

Disclose a kind of multi-breakpoint direct current type and mould the shell DC circuit breaker in CN202268314U, it connects the switching units in DC circuit breaker in advance in DC circuit breaker inside, and the user can directly use the DC circuit breaker connected like this.But, this DC circuit breaker is because the short circuit wire that switching units is connected is encapsulated in DC circuit breaker inside, although make the overall dimension of DC circuit breaker be reduced, brought also the problem that is unfavorable for the DC circuit breaker heat radiation, this connected mode makes the DC circuit breaker heat-sinking capability reduce, temperature rise is larger, can aggravate the ageing of insulation of DC circuit breaker shell.

The utility model content

In order to solve the problems of the technologies described above, the utility model provides a kind of DC circuit breaker that connects row that has, and it can be connected the switching units of DC circuit breaker in advance, and is conducive to the heat radiation of DC circuit breaker.

According to the DC circuit breaker with connection row of the present utility model, its technical scheme is: a kind of DC circuit breaker with connection row, comprise housing, be provided with a plurality of switching units in housing, wherein, at least two switching units in described a plurality of switching units are used to connect and come outside and be connected in series.

Preferably, be provided with radiator on connection row.

According to the DC circuit breaker with connection row of the present utility model, it uses connection row to be connected a plurality of switching units of DC circuit breaker in advance, therefore, do not need the user to carry out at the scene in use wiring, the connection row who is connected because of the switching units to DC circuit breaker again is arranged on the outside of DC circuit breaker, can not be enclosed in the DC circuit breaker enclosure interior by connecting the living heat of scheduling, cause that DC circuit breaker enclosure interior temperature raises.Simultaneously, it is provided with radiator on connection row, so further reduced the temperature rise of DC circuit breaker in the use procedure.

Preferably, radiator is the fin be made of aluminum or copper.

Preferably, fin be connected row's connection that contacts with each other.

The fin of being made by copper or aluminium contacts connection with being connected row, is conducive to arrange discharge by connecting the living heat of scheduling from connecting.

Preferably, described a plurality of switching units are 3 switching units, between these 3 switching units, use successively 2 connection rows to be connected in series.

Preferably, described a plurality of switching units are 3 switching units, and only wherein 2 switching units are used 1 connection row to be connected in series.

Preferably, described a plurality of switching units are 4 switching units, and these 4 switching units are divided into two groups from left to right, and every group comprises 2 adjacent switching units, and two switching units in every group are used respectively 1 to connect row and be connected in series.

Preferably, described a plurality of switching units are 4 switching units, between these 4 switching units, use successively 3 connection rows to be connected in series.

The occasion that has the DC circuit breaker that connects row in application, can arrange as required and connect row a plurality of switching units of DC circuit breaker are connected.For different loads and the link position of power supply, even comprise that the DC circuit breaker of the switching units of same number also can be used the connection row of different numbers to be connected, to obtain the DC circuit breaker of expectation.

Preferably, described connection row is fixedly connected with the housing of DC circuit breaker.

Preferably, the described screw that is fixedly connected as connects, and rivet connects or welding.

According to the DC circuit breaker with connection row of the present utility model, do not need the user to be installed at the scene, saved user's use cost, and be beneficial to DC circuit breaker heat radiation, extended the process that the DC circuit breaker housing is subject to heat ageing, extended the useful life of DC circuit breaker.

The accompanying drawing explanation

Other advantage of the present utility model and feature will be from ensuing that only provide with the purpose of non-limiting example and mean that the explanation of specific embodiment of the present utility model in the accompanying drawings becomes more obviously clear, in the accompanying drawings:

Fig. 1 shows the structural representation that has the DC circuit breaker that connects row according to of the present utility model;

Fig. 2 shows the structural representation that connects row;

Fig. 3 shows the structural representation with the connection row of radiator;

Fig. 4 is respectively the DC circuit breaker use with 3 switching units with Fig. 5 and is connected the circuit structure diagram that row is connected;

Fig. 6 is respectively the DC circuit breaker use with 4 switching units with Fig. 7 and is connected the circuit structure diagram that row is connected.

Description of reference numerals

1 has the DC circuit breaker that connects row

2 connect row

3 radiators

4 housings

5 loads

6 power supplys

7 screws

Embodiment

Below in conjunction with Fig. 1 to Fig. 7, the DC circuit breaker with connection row of the present utility model is described in detail.

Fig. 1 shows the DC circuit breaker 1 that has connection row according to of the present utility model, comprise housing 4, be equipped with the body of DC circuit breaker in housing 4, the body of DC circuit breaker consists of a plurality of switching units, in the present embodiment, the DC circuit breaker body comprises 4 switching units.In housing 4 outer setting, have 3 to connect row 2, each connects row 2 and respectively two adjacent switching units is linked together.And, on connection row, be provided with radiator 3.

The switching units of indication in all parts of this paper, refer to each part that independently opens circuit in DC circuit breaker, and as long as this opens circuit, part disconnects, and can make whole DC circuit breaker place circuit disconnect.Each switching units in the tradition DC circuit breaker all leads to binding post to the DC circuit breaker outside, is convenient to each switching units is connected in series.

Fig. 2 shows the structural representation according to connection row of the present utility model.This connects row for platy structure, bottom side at one end offers groove, this groove is for the projection on the DC circuit breaker housing, be respectively arranged with two through holes in the both sides of groove, this through hole is fixed on the DC circuit breaker housing for connecting the binding post of drawing from the DC circuit breaker housing and connecting row.

Use the DC circuit breaker that connects row that has of this configuration, connect row and be arranged on the DC circuit breaker outside, the binding post of being convenient to drawing in the DC circuit breaker housing is connected.

But, this concrete structure that connects row is only for the purpose of example, the connection that relates in the utility model row is not limited to this concrete structure, as long as can meet, the binding post of switching units is connected in the DC circuit breaker outside, and meets thermal diffusivity and security requirement gets final product.

When producing, as required, use in advance connection row to be connected the switching units of DC circuit breaker, therefore, the user is without carrying out at the scene in use wiring, the connection row that the switching units of DC circuit breaker is connected is arranged on the outside of DC circuit breaker, can not be enclosed in the DC circuit breaker enclosure interior by connecting the heat that scheduling gives birth to, and causes that DC circuit breaker enclosure interior temperature raises.Simultaneously, on connection row, be provided with radiator, further reduced the temperature rise of DC circuit breaker in the use procedure.

In the present embodiment, radiator 3 is the fin that are made of aluminum or copper.But, be not limited to the radiator of heat radiation type, can use any radiators that heat outwards can be transmitted from connecting row 2 at this.In the present embodiment, fin be connected row's 2 connections that contact with each other.

Fig. 4 to Fig. 7 shows respectively to use and connects several different execution mode that row connects switching units.

DC circuit breaker shown in Fig. 4 comprises 3 switching units, in this DC circuit breaker, only use 1 to connect row 2, wherein a side of two switching units is used to connect to arrange and is connected, the opposite side of these two switching units connects respectively power supply 6 and load 5, and remaining the 3rd switching units both sides connect respectively load 5 and power supply 6.

DC circuit breaker shown in Fig. 5 also comprises 3 switching units, but use 2 and connect row 2 in this DC circuit breaker, wherein between 3 switching units, use successively 2 to connect row and be connected in series, at the free end of two switching units of end, connect respectively power supply and the load be cascaded.

At this, the free end of mentioning, refer to that circuit breaks unit and do not have and an end that is connected row's connection.

DC circuit breaker shown in Fig. 6 comprises 4 switching units, use 2 and connect row in these 4 switching units, these 4 switching units are divided into two groups from left to right successively, every group comprises 2 switching units, 2 switching units of every group are used respectively 1 connection row to be connected, and the free end of these two switching units of two groups connects respectively load and power supply.

DC circuit breaker shown in Fig. 7 also comprises 4 switching units, and these 4 switching units are used 3 to connect row and connected successively, at the free end of two switching units of end, connects respectively power supply and the load be cascaded.Circuit structure diagram shown in Fig. 7 is corresponding with the DC circuit breaker with connection row shown in Fig. 1.

In conjunction with Fig. 4 to Fig. 7, the above has been described in detail with the circuit structure that is connected row's connection the DC circuit breaker that comprises 3 switching units and 4 switching units respectively, but, it is to be noted, the utility model is not limited to these circuit structures, and it is only as the purpose of example and unrestriced purpose.For example, DC circuit breaker can comprise 2 as required, 5, and 6,7 even more switching units, the connection of using on DC circuit breaker row's number and circuit structure also can be arranged as required.

In sum, there is the occasion of the DC circuit breaker that connects row in application, can arrange as required and connect row a plurality of switching units of DC circuit breaker are connected.For different loads and the link position of power supply, even comprise that the DC circuit breaker of the switching units of same number also can be used the connection row of different numbers to be connected, to obtain the DC circuit breaker of expectation.

In the embodiment shown in fig. 1, connecting row 2 is fixedly connected with by screw 7 with the housing 4 of DC circuit breaker.Connect row 2 and also can be connected by alternate manner with the housing 4 of DC circuit breaker, for example: rivet connects or welding, as long as can fall connection row 2 connected modes that are anchored on housing 4, all can use at this.

Above the utility model is described in detail; for one of ordinary skill in the art; thought according to the utility model embodiment; change in specific embodiments and applications should not thought the scope that has departed from the utility model protection; in sum, this description should not be construed as restriction of the present utility model.

Claims

1. one kind has the DC circuit breaker (1) that connects row, comprise housing (4), be provided with a plurality of switching units in described housing (4), it is characterized in that: at least two switching units in described a plurality of switching units are used connection row (2) to be connected in series in described housing (4) outside.

2. the DC circuit breaker (1) with connection row according to claim 1, is characterized in that: on described connection row (2), be provided with radiator (3).

3. according to claim 2 have a DC circuit breaker (1) that connects row, and it is characterized in that: described radiator (3) is the fin be made of aluminum or copper.

4. according to claim 3 have a DC circuit breaker (1) that connects row, it is characterized in that: described fin is connected row (2) connection that contacts with each other with described.

5. according to the described DC circuit breaker (1) with connection row of any one in claim 1 to 4, it is characterized in that: described a plurality of switching units are 3 switching units, between these 3 switching units, use successively 2 connection rows to be connected in series.

6. according to the described DC circuit breaker (1) with connection row of any one in claim 1 to 4, it is characterized in that: described a plurality of switching units are 3 switching units, and only wherein 2 switching units are used 1 connection row to be connected in series.

7. according to the described DC circuit breaker (1) with connection row of any one in claim 1 to 4, it is characterized in that: described a plurality of switching units are 4 switching units, these 4 switching units are divided into two groups from left to right, every group comprises 2 adjacent switching units, and two switching units in every group are used respectively 1 to connect row and be connected in series.

8. according to the described DC circuit breaker (1) with connection row of any one in claim 1 to 4, it is characterized in that: described a plurality of switching units are 4 switching units, between these 4 switching units, use successively 3 connection rows to be connected in series.

9. according to the described DC circuit breaker (1) with connection row of any one in claim 1 to 4, it is characterized in that: described connection row (2) is fixedly connected with the housing (4) of DC circuit breaker.

10. according to claim 9 have a DC circuit breaker (1) that connects row, and it is characterized in that: the described screw that is fixedly connected as connects, and rivet connects or welding.