CN1765038B

CN1765038B - Switch apparatus and its frame

Info

Publication number: CN1765038B
Application number: CN03826328.9A
Authority: CN
Inventors: 三原优; 松川明史; 小鹤进
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2003-05-30
Filing date: 2003-05-30
Publication date: 2012-09-12
Anticipated expiration: 2023-05-30
Also published as: CN1765038A; WO2004107519A1; JPWO2004107519A1; TW200427168A; TWI221690B

Abstract

Provided is a switch gear and a housing for containing the same. The housing receives plural electrical kits constituting the switch gear, and consists of outside panels forming the configuration of the housing and partition walls forming plural compartments in the housing so as to respectively and individually receives said electrical kits. The outside panels are divided into plural panels having connecting edge at the places corresponding to the location of partition walls, and the partition walls are connected to the connection edge of the panel portions, thereby a housing of switch gear which is well rigid, strong to the increasing inside pressure rising due to inside troubles, and reducible in the width dimension of switch gear.

Description

Switchgear and framework thereof

(1) technical field

The present invention relates to a kind of switchgear and framework thereof.

(2) background technology

In switchgear, main switchgear cabinet is divided by the demarcation strip that uses grounded metal, insulant, at the inner isolation ward of cutting apart the chamber that is called that forms a plurality of sealings of framework.The purpose of so dividing is: in the coverage of operator or maintenance test person being protected and be limited to when having foreign matter to invade the inner fault that produces of switchgear near high-voltage charging portion.This chamber of cutting apart is called according to the equipment of generally accommodating that bus is cut apart the chamber, circuit breaker cuts apart the chamber and the load-side cable is cut apart chamber etc.On the other hand, framework self for obtain necessary structural strength or from make, the angle of assembling considers, partly engage one another and constitute outer container being divided into a plurality of frameworks as framework.

In conventional switch equipment, because being the demarcation strip position influence ground that does not receive to cut apart the chamber, framework cuts apart, so must the installation frame that the support demarcation strip beyond the framework junction surface is partly used be set at frame side wall.And, in order to improve the rigidity of framework through the demarcation strip that is arranged on the framework central portion, and must improve framework and both rigidity of installation frame, must consider that installation method can not make intensity reduce (for example with reference to japanese patent laid-open 9-322324 communique).

And switchgear is safeguarded for the inspection of taking in, cut apart indoor conductor and conductor supports insulative thing of mobile model equipment such as circuit breaker, and the lid of more use bolt interconnection system.The switchgear framework is the formation of door shape, in order to improve the rigidity of left and right directions, then is difficult to the steel plate of framework carry out thin plateization.Insulation distance in order to ensure between the high-voltage charging portion of the junction surface of demarcation strip installation frame, framework and conductor is shown below and required minimum disc is wide.Minimum disc is wide to be when framework framework width dimensions is the framework thickness of slab.

Minimum disc is wide=framework framework width dimensions * 2+ conductor width size * 3+ phase insulation distance * 2+ the earth between insulation distance * 2

(3) summary of the invention

Therefore, even the object of the present invention is to provide high switchgear and the framework thereof that when rising, also has intensity and can reduce the width dimensions of switchgear of a kind of rigidity because of the internal fault internal pressure.

Therefore; Switchgear of the present invention; It is characterized in that; Comprise a plurality of electric devices that constitute switching device and the framework of taking in this electric device, said framework have outer faceplate panels that the profile of said framework is divided and with said framework internal separation for taking in a plurality of partition walls of cutting apart the chamber of said a plurality of electric devices respectively separately, said outer faceplate panels is split into a plurality of faceplate parts with combination edge portion in the position corresponding to said partition wall position; Said partition wall is combined in the said combination edge portion of said faceplate part, and said combination edge portion is the kink that the interarea of said relatively faceplate part is approximate right angle.

And; The framework of switchgear of the present invention; Take in a plurality of electric devices that constitute switchgear; It is characterized in that, said framework have outer faceplate panels that the profile of said framework is divided and with said framework internal separation for taking in a plurality of partition walls of cutting apart the chamber of said a plurality of electric devices respectively separately, said outer faceplate panels is split into a plurality of faceplate parts with combination edge portion in the position corresponding to said partition wall position; Said partition wall is combined in the said combination edge portion of said faceplate part, and said combination edge portion is the kink that the interarea of said relatively faceplate part is approximate right angle.

(4) description of drawings

Fig. 1 is the summary sectional view of expression switchgear of the present invention.

Fig. 2 is the three-dimensional exploded view of the framework of expression switchgear of the present invention.

Fig. 3 is the stereogram of part of breaker chamber of the framework of expression switchgear of the present invention.

Fig. 4 is the stereogram that the breaker chamber that is illustrated in Fig. 3 combines the state of main bus bar chamber.

Fig. 5 is the stereogram that the main bus bar chamber that is illustrated in Fig. 4 combines the state of partition wall and branch conductors.

Fig. 6 is the stereogram that the main bus bar chamber that is illustrated in Fig. 5 combines the state of cable vault.

Fig. 7 is the three-dimensional exploded view of the framework of switchgear of the present invention.

(5) embodiment

Fig. 1 is the summary sectional view of switchgear that the framework of switchgear of the present invention has been used in expression, and Fig. 2 is the approximate three-dimensional map of the framework 1 of expression switchgear.Switchgear has the framework 1 that roughly is cuboid, takes in a plurality of electric devices of switchgears such as constituting circuit breaker 2, control device 3, main bus bar 4, cable 5 in the inside of framework 1.Framework 1 has the outer faceplate panels 6 of the outer container that roughly is the cuboid profile that forms framework 1, and this outer faceplate panels 6 is made up of front panel 7, back faceplate panels 8, top panel 9, base panel 10 and 2 side panel 11.On framework 1, also be provided with various partition walls 12; With the internal separation of framework 1 is a plurality of chambers of cutting apart such as breaker chamber 13, controller chamber 14, main bus bar chamber 15 and cable vault 16, has taken in a plurality of electric devices such as circuit breaker 2, control device 3, main bus bar 4, current transformer 56 respectively separately.

To the framework 1 shown in Figure 7, breaker chamber 13 is formed with by dividing at Fig. 2: top wall panel part 20, the rear wall part 21 at the top that the bottom panel part 18 of rectangle, two rectangular side wall faceplate parts 19 holding up from the lateral margin of bottom panel part 18, the sidewall panel that interlinks part 19 are anterior.The front of breaker chamber 13 is by front wall panel part 22 sealings as the front switch door.These the various faceplate parts that will explain of back all have the interarea of at least one edge portion opposite face plate portion of the steel plate kink with the approximate right angle bending, and this kink is as the combination edge portion 17 between described faceplate part in back and partition wall.

The top wall panel part 20 of breaker chamber 13 is provided with controller chamber 14; This controller chamber 14 has bottom panel part 23, sidewall panel part 24, top wall panel part 25 and rear wall part 26, and open front is by the front wall panel part 26a sealing as the switch door.

Combine main bus bar chamber 15 at the breaker chamber 13 of so combination and the behind configuration of controller chamber 14.Main bus bar chamber 15 has two sidewall panel parts 27 of the key shape that is parallel to each other, between sidewall panel part 27, disposes to be combined with: retreat front wall panel part 28, the rear wall part 29 of setting, the top wall panel part 31 with two cover plates 30 and bottom panel part 32 from the leading edge of sidewall panel part 27.Bottom panel part 32 is retreated setting from the lower edge of sidewall panel part 27 34 to the top, rear wall part 29 obturations from top wall panel part 31 to the bottom panel part 32.Sidewall panel part 27 is provided with the opening 33 that is used to run through main bus bar 4.

The sidewall panel part 27 of main bus bar chamber 15; Be combined in through suitable bonded blocks 40 such as rivet, screw, scolder, binding agents on the lateral margin 35 of the bottom panel part 18 of breaker chamber 13 at subordinate's edge 34 thereafter, its underpart leading edge 36 and anterior lower edge 37 are combined in respectively on trailing edge 38 and the upper limb 39 of sidewall panel part 19 of breaker chamber 13.

A part as previously mentioned, breaker chamber 13 is formed by 22 sealings of bottom panel part 18, sidewall panel part 19, top wall panel part 20, rear wall part 21, front wall panel part.Breaker chamber 13 is before the assembling of Fig. 2 under the state; The rear, top is open; But under the assembled state of Fig. 1 and Fig. 2 central authorities, this rear, top and the spatial communication of surrounding by the rear wall part 26 of the front wall panel part 28 of main bus bar chamber 15, sidewall panel part 27, controller chamber 14.That is, breaker chamber 13 not only has the part of accommodating circuit breaker 2, also has from the parts of the chimney-like of here 15 of controller chamber 14 and main bus bar chambers being extended to the top.

Be combined with cable vault 16 in the configuration of the rear of main bus bar chamber 15.Cable vault 16 is formed by two parallel sidewall panel parts 42, the bottom panel part 46 that has the top wall panel part 44 of cover plate 43 and have an opening 45.The open at its front of cable vault 16.The leading edge 47 of sidewall panel part 42 is combined on the trailing edge 48 of sidewall panel part 27 of main bus bar chamber 15.

In this kind formation, we can say as a plurality of breaker chamber 13, controller chamber 14, main bus bar chamber 15 and cable vaults 16 of cutting apart the chamber and divide by front wall panel part, rear wall part, top wall panel part, bottom panel part and two side walls board branch respectively.

And; We can say that a plurality of front wall panel parts of cutting apart the chamber, rear wall part, top wall panel part, bottom panel part and two side walls plate portion by mutual combination suitably and combine, constitute front panel 7, back faceplate panels 8, top panel 9, base panel 10 and 2 side panel 11 of framework 1 as a whole.

And; Also we can say as each Wall board parts of a plurality of breaker chamber 13, controller chamber 14, main bus bar chamber 15 and cable vaults 16 of cutting apart the chamber adjacent overlapping parts each other; Omit any Wall board part, and with residual another Wall board part as the shared single partition wall of cutting apart between the chamber 12.For example, in the relation of breaker chamber 13 and the main bus bar chamber 15 that is configured in its rear, when both assembled, the rear wall part 21 of breaker chamber 13 became also the shared single partition wall 12 as the part effect of the front wall panel part of main bus bar chamber 15.

And; The outer faceplate panels 6 that forms framework 1 profile is split in the position corresponding to partition wall 12 positions (for example has the edge of combination portion 17; The lateral margin 35 of the bottom panel part 18 of the lower edge 34 of the sidewall panel part 27 of main bus bar chamber 15, leading edge 36 and lower edge 37 and breaker chamber 13, trailing edge 38 and upper limb 39) a plurality of faceplate parts, partition wall 12 is combined in the combination edge portion 17 of faceplate part.

In the framework 1 that so constitutes, as shown in Figure 1, be connected with branch conductors 51 on the three parallel main bus bars 4 in importing framework 1.Branch conductors 51 is insulator 53 supports on the installation frame 52 on the rear wall part 29 by the partition wall 12 that is supported on 16 of main bus bar chamber 15 and cable vaults, and extends downwards respectively.As shown in Figure 4, installation frame 52 also can be installed on the hinder marginal part (junction surface) of sidewall panel part 27.The lower end of branch conductors 51 is connected with the end that is installed in main bus bar chamber 15 sides of the 1st insulating sleeve 54 on the rear wall part 21 13 of main bus bar chamber 15 and breaker chambers.On rear wall part 21, also further be provided with the 2nd insulating sleeve 55 in main

bus bar chamber

15 and 16 of cable vaults.On these the 1st insulating sleeves 54 and the 2nd insulating sleeve 55, can draw to connect and be configured in the circuit breaker 2 in the breaker chamber 3.The end of 16 sides is connected with the branch conductors 57 that is connected with current transformer 56 respectively in the cable vault of the 2nd insulating sleeve 55, is connected with the cable 5 that is used to connect external circuit at the other end of branch conductors 57.

In the framework of the switchgear that so constitutes, framework is combined to constitute by a plurality of faceplate parts of cutting apart, is provided with at this bound fraction and is used to form the partition wall of cutting apart the chamber.Partition wall also can be in the joint portion of framework be for example installed demarcation strip through shared screw etc. together, also can be with a joint portion of framework as on this extension, installing and support demarcation strip to the inner extension that extends of framework.

Therefore, because the rigidity of framework improves, intensity is also higher when rising because of the internal fault internal pressure, so can reduce the thickness of panel.And the split position through making framework with cut apart the division position consistency of chamber, thereby can guarantee the bonding part of framework and the insulation distance between inner high-voltage charging part, can reduce the width dimensions of switchgear.

Claims

1. a switchgear comprises a plurality of electric devices that constitute switchgear and the framework of taking in this electric device, it is characterized in that,

Said framework have the outer faceplate panels of the profile that is used to limit said framework and with said framework internal separation for taking in a plurality of partition walls of cutting apart the chamber of said a plurality of electric devices respectively separately,

Said outer faceplate panels is split in the position corresponding to said partition wall position has a plurality of faceplate parts that combine edge portion, and said partition wall is combined in the said combination edge portion of said faceplate part,

Said combination edge portion is the kink that the interarea of said relatively faceplate part is approximate right angle.

2. switchgear as claimed in claim 1 is characterized in that, said a plurality of chambers of cutting apart are limited front wall panel part, rear wall part, top wall panel part, bottom panel part and two side walls plate portion respectively and form,

Said said front wall panel part, rear wall part, top wall panel part, bottom panel part and the two side walls plate portion mutual combination of cutting apart the chamber also combines; Constitute front panel, back faceplate panels, top panel, base panel and the side panel of said framework as a whole

In the mutual adjacent overlapping part of each said Wall board part, said Wall board partly becomes the said shared single partition wall of cutting apart between the chamber.

3. according to claim 1 or claim 2 switchgear is characterized in that the said chamber of cutting apart comprises: be configured in the front lower of said framework and take in the breaker chamber of circuit breaker; Be configured in the anterior control room that combines and take in control device with said breaker chamber of roof of said breaker chamber; Rear portion and the roof rear portion that is configured in said breaker chamber combines with said breaker chamber and is configured in the rear portion in said control room combines and take in main bus bar with said control room main bus bar chamber; And the rear portion that is configured in said main bus bar chamber and the said main bus bar chamber cable vault that combines and take in cable.

4. the framework of a switchgear is taken in a plurality of electric devices that constitute switchgear, it is characterized in that,

Said outer faceplate panels is split in the position corresponding to said partition wall position has a plurality of faceplate parts that combine edge portion; Said partition wall is combined in the said combination edge portion of said faceplate part, and said combination edge portion is the kink that the interarea of said relatively faceplate part is approximate right angle.