CN207320575U - A kind of panel switches of AC low voltage power switch box - Google Patents

Abstract

The utility model discloses a kind of panel switches of AC low voltage power switch box, including power distribution cabinet body, function counter, sub-control switch and adjustable support, the adjustable support to be equipped with switching device；Relay is equipped with the power distribution cabinet body, relay is equipped with switch, is equipped with bearing block below relay, the afterbody of bearing block is equipped with cam, and the front end of bearing block is equipped with boss, and the roller bearing of boss is set in bearing block, and cam is corresponding with the switch of relay；The sub-control switch is connected by straight line copper bar with function counter, and power distribution cabinet body is connected to the input and output pin of function counter by the copper bar of 90 ° of corners.Using integrated morphology, its processing and installation is simple, and assembling is time-consuming less, efficient, and copper bar dosage is small, maintains easily, and reduces cost；And the operating surface of all switching devices improves work efficiency in same level；The breaker and contactor of the utility model, reduce cost, make caloric value lower, and have temperature adjusting function, improve service life of equipment.

Description

A kind of panel switches of AC low voltage power switch box

Technical field

It the utility model is related to distribution technique field, and in particular to a kind of panel switches of AC low voltage power switch box.

Background technology

With the continuous development of Power Electronic Technique, the species of controller switching equipment is more and more, and function is also increasingly perfect.

At present, the various distribution components inside controller switching equipment are installed in the structural member of cabinet, cabinet and distribution components Connected by cable integral；But the copper bar bending in existing power distribution cabinet is very inconvenient, and need substantial amounts of switching copper Row, adds contact point, whole copper bar systematic part species is more, and processed complex is cumbersome for installation, with high costs；Cause power distribution cabinet The structure of internal copper bar is extremely complex, it is assembled, and time-consuming, efficiency is low, and copper bar dosage is big, it has not been convenient to which installation and maintenance, increase Cost is added.

The high power distribution cabinet of the degree of protection that uses at present, requires that cabinet in processing, only allows the behaviour of switch element Make handle portion leakage outside cabinet, other parts must be enclosed within power distribution cabinet body, and there are different thickness in same power distribution cabinet body The switching device of degree, its operating surface must be on same level faces；Existing method is by calculating, processing different sizes and height The mounting rail of degree installs each switching device respectively, it is ensured that the operating surface of all switching devices opens in same level Brand, the specification for closing device are numerous, it is difficult to and it is unified, therefore power distribution cabinet processing and installation are difficult to realize standard configurations, serious shadow Field erected work efficiency is rung.

Using contactor and breaker, there are problems with the same time for existing power distribution cabinet：First, contactor and breaker all need Installation space is wanted, while uses contactor and breaker, increases power distribution cabinet volume；Secondly, needed between contactor and breaker To use copper bar or cable to be attached, make power distribution cabinet manufacture cost increase；Third, using copper bar or cable connection contactor and During breaker, tie point generally use bolt arrangement is attached fastening, and tie point releasing resistance is big, and caloric value is big, makes distribution The increase of cabinet cabinet internal heat generation amount, causes power distribution cabinet in-cabinet temperature higher, and existing power distribution cabinet does not have temperature inductor and temperature tune Regulating device, is unable to control cabinet body temperature, for a long time using that cabinet can be caused to be damaged, reduces service life.

Also, in the prior art, when there is a situation where electricity consumption is excessive or it is corresponding using electrical equipment electric leakage all, all can " tripping " phenomenon occurs, after completing to corresponding to electrical equipment maintenance qualification, make and break pass need to be closed again by artificial, manually grasped Lock a door when making, it is necessary to open power distribution cabinet, the right operation then needs that there is certain electrotechnics or professional could operate, especially Some large-scale power distribution cabinets, because distribution cabinet lock is only rested in special messenger's hand, cause " to close a floodgate " and program trouble and stall for time.

Utility model content

Based on this, in view of the above-mentioned problems, being necessary to propose a kind of panel switches of AC low voltage power switch box, using integrated knot Structure, the copper bar species used is few, and processing and installation is simple, and assembling is time-consuming less, efficient, and copper bar dosage is small, maintains easily, and reduces Cost；And the operating surface of all switching devices, in same level, convenient operation, improves work efficiency；What is used is disconnected Road device and contactor, will not increase the volume of power distribution cabinet body, reduce cost, make caloric value lower, and have temperature tune Function is controlled, improves service life of equipment.

The technical solution of the utility model is as follows：

A kind of panel switches of AC low voltage power switch box, including power distribution cabinet body, function counter, sub-control switch and two installations Adjustable support on power distribution cabinet body curb girder, is provided with switching device on the adjustable support described in two；The power distribution cabinet sheet Relay is equipped with vivo, and relay is equipped with switch, is equipped with bearing block below relay, the afterbody of bearing block is equipped with cam, axis The front end of bearing is equipped with boss, and the roller bearing of the boss is set in bearing block, and cam is corresponding with the switch of relay；It is described Sub-control switchs at least two, and is connected respectively by straight line copper bar with function counter, the copper bar that power distribution cabinet body passes through 90 ° of corners It is connected to the input and output pin of function counter.

The utility model uses adjustable support, makes the operating surface of all switching devices in same level, convenient operation, Improve work efficiency；And the utility model is rotated by 90 ° by the way that the sub-control in power distribution cabinet body is switched each phase, makes switch copper bar Trend it is consistent with function counter input and output copper bar trend, connecting copper bar is greatly simplified, the copper bar of whole copper bar system bending Only up and down two layers, and be all simple bending, input and output are then converted directly into straight copper bar, and top inputs per phase and machine copper It is drained exactly the same, bottom and machine copper bar it is also identical；And output and input and only used two kinds of copper bars, no matter client uses Upper inlet-outlet line still descends inlet-outlet line or upper entering and lower leaving line, can realize, input and output copper bar location swap once can Meet different inlet-outlet line demands, in addition not design any switching completely, it is processed simply, easy for installation, and is reduced into This.

As the further optimization of such scheme, cabinet door is equipped with the power distribution cabinet body, side is equipped with opening in cabinet door Shut, be equipped with and the corresponding import of roller bearing in the middle part of cabinet door.Conveniently check the situation of each device in power distribution cabinet body, convenient installation Part and safeguarded.

As the further optimization of such scheme, locking bar is further included, the locking bar is correspondingly arranged through import with roller bearing, and Locking bar includes being located at the handle of front end, is located at the convex block at middle part and sets rear-end sliding slot, and the import is consistent with convex block shape And the size of convex block is less than import, the positions and dimensions of the sliding slot are consistent with boss and boss can be embedded in sliding slot.

The middle roller bearing and locking bar of the utility model, which are all adopted, to be made from an insulative material, and in locking bar and roller bearing engagement process, is led to The convex block crossed on locking bar coordinates with import so that can quickly realize that the boss on sliding slot and roller bearing on locking bar is matched somebody with somebody in insertion process Close, avoid other circuits or electrical equipment in insertion process locking bar touches power distribution cabinet body, improve security, and wait to lock After bar coordinates with roller bearing, it need to be only that cam can be achieved to promote the switch on relay to merge by handle simple rotation, complete " to close Lock " operates, and whole process need not open power distribution cabinet, will not influence the normal work of other electrical equipments in power distribution cabinet, its structure Simply, it is easy to make, it is safe, it is highly practical.

As the further optimization of such scheme, the every adjustable support is by fixed frame, adjustable shelf and bolt group Into the fixed frame is coupled to each other and is slidably matched with adjustable shelf, and the bolt is each passed through fixed frame and adjustable shelf.This practicality The adjustable support of new use, its is simple and reasonable, it is easy to accomplish, easy to quickly be adjusted to switching device setting height(from bottom) It is levelling, make power distribution cabinet in assembling, it is no longer necessary to the mounting brackets of various height is processed to meet the installation requirement of switching device, The power distribution cabinet construction period is substantially reduced, work efficiency greatly improved.

As the further optimization of such scheme, switching device includes housing, the controller and secondary returning being located on housing Road terminals, are equipped with the housing and fixed breaker and contactor are welded to each other by copper bar, the controller respectively with Breaker and contactor control connection, the second loop return wiring end is electrically connected with breaker and contactor respectively.

Contactor and breaker are arranged in same switching device, more compact structure, the volume of the switching device with The volume of both former contactor and breaker compares, volume smaller, so as to reduce the volume of power distribution cabinet；Due to by contactor and disconnected Close to arrangement, the copper bar size for connecting contactor and breaker greatly reduces road device, the material cost of copper bar is reduced, so as to reduce The manufacture cost of power distribution cabinet；Copper bar uses welding connection structure with contactor and breaker, substantially reduces the contact electricity of tie point Resistance, so that the fever of tie point is reduced, so as to reduce the caloric value in power distribution cabinet body, improves power distribution cabinet operating mode.

As the further optimization of such scheme, it is connected between the sub-control switch described at least two by straight line copper bar Maintenance switch, the both ends of the maintenance switch are connected by the copper bar of 90 ° of corners and the input and output pin of power distribution cabinet body respectively Connect.Play the role of protecting circuit, prevent short circuit and open circuit, it is not necessary to which any switching, optimizes the effect that switch uses.

As the further optimization of such scheme, the bottom plate of the fixed frame is welded on the curb girder of power distribution cabinet body, Straight slot is provided with the middle part of the fixed frame, the bottom of the adjustable shelf is provided through the horizontal support of straight slot, and the bolt passes through respectively Wear fixed frame bottom plate and horizontal support.By rotating the bolt, the height of adjustable shelf can be adjusted by horizontal support, makes activity Frame moves up and down, and achievees the purpose that to be adjusted switching device setting height(from bottom) levelling.

As the further optimization of such scheme, it is additionally provided with the power distribution cabinet body with electric control module and middle boxes Frame, it is described with being integrated with power veneer, monitor board, delivery air switch and client's wire connection terminal in electric control module；In described Between be integrated with input copper bar on frame；The input copper bar is opened with power veneer, monitor board and delivery air respectively by cable Connection is logical.

Input copper bar is used to carrying electric current in power distribution cabinet body, and by the next module of current output value；Input copper bar It is additionally operable to input current being assigned to power veneer, monitor board and delivery air switch by cable, and is switched by delivery air Export to client's wire connection terminal；The input terminal for inputting copper bar is bending structure, and the output terminal for inputting copper bar is vertical stratification, By the way that the input terminal for inputting copper bar is designed as drawing structure, it can be ensured that do not increasing the basis that is taken up space of input copper bar On so that the output terminal of a upper module can be in a manner of overlap joint with should be connected with electric control module；Copper bar use can be reduced Amount, reduce cost, and can simplify installation step, improve efficiency of assembling.

As the further optimization of such scheme, the inner wall of the power distribution cabinet body is equipped with temperature sensor, distribution Corresponding temperature sensor is equipped with temperature-adjusting device on the outer wall of cabinet body.It can be achieved to realize prison to the temperature in power distribution cabinet body Control and adjust, make temperature stabilization in power distribution cabinet body in a controlled range, prevent each element in power distribution cabinet body because Temperature is excessive and influences its work efficiency, or even burns；Temperature control can be realized using temperature sensor and temperature-adjusting device, Improve the service life and using effect of equipment.

The beneficial effects of the utility model are：

1st, the utility model is rotated by 90 ° by the way that the sub-control in power distribution cabinet body is switched each phase, makes the trend of switch copper bar Consistent with function counter input and output copper bar trend, connecting copper bar is greatly simplified, and input and output copper bar location swap once can To meet different inlet-outlet line demands, any switching is not in addition designed completely, it is processed simply, easy for installation, and is reduced Cost.

2nd, the convex block on the utility model locking bar and import coordinate so that the cunning on locking bar can be quickly realized in insertion process Groove coordinates with the boss on roller bearing, avoids other circuits or electrical equipment in insertion process locking bar touches power distribution cabinet body, Security is improved, and power distribution cabinet need not be opened during use, other electrical equipments will not influenced in power distribution cabinet just Often work, its is simple in structure, easy to make, safe, highly practical.

3rd, the adjustable support that the utility model uses, its is simple and reasonable, it is easy to accomplish, easy to be installed to switching device Highly quickly adjusted levelling, make power distribution cabinet in assembling, it is no longer necessary to process the mounting brackets of various height to meet out The installation requirement of device is closed, the power distribution cabinet construction period is substantially reduced, work efficiency greatly improved.

4th, the contactor of the utility model and breaker are in same switching device so that more compact structure, volume is more It is small, since by contactor and breaker, close to arrangement, the copper bar size for connecting contactor and breaker greatly reduces, and reduces copper bar Material cost, so as to reduce the manufacture cost of power distribution cabinet；Copper bar uses welding connection structure with contactor and breaker, significantly The contact resistance of tie point is reduced, so that the fever of tie point is reduced, so as to reduce the caloric value in power distribution cabinet body, is improved Power distribution cabinet operating mode.

5th, using temperature sensor and temperature-adjusting device, it can be achieved that realizing monitoring to the temperature in power distribution cabinet body and adjusting Section, makes temperature stabilization in power distribution cabinet body prevent each element in power distribution cabinet body because of temperature mistake in a controlled range It is high and influence its work efficiency, improve the service life and using effect of equipment.

Brief description of the drawings

Fig. 1 is the structure diagram of the panel switches of AC low voltage power switch box described in the utility model embodiment；

Fig. 2 is the connection relation between function counter described in the utility model embodiment and sub-control switch and power distribution cabinet body Figure；

Fig. 3 is the structure diagram of locking bar described in the utility model embodiment；

Fig. 4 is the sectional view of adjustable support described in the utility model embodiment；

Fig. 5 is the structure diagram of switching device described in the utility model embodiment；

Fig. 6 is the internal view of housing described in the utility model embodiment；

Fig. 7 is the functional block diagram for matching somebody with somebody electric control module described in the utility model embodiment.

Description of reference numerals：

10- power distribution cabinet bodies；101- relays；101a- is switched；101b- bearing blocks；101c- cams；101d- boss； 101e- roller bearings；102- cabinet doors；103- switch locks；104- imports；105a- power veneers；105b- monitor boards；105c- outputs are empty Air cock；105d- client's wire connection terminal；106- inputs copper bar；107- temperature sensors；108- temperature-adjusting devices；20- functions Cabinet；30- sub-controls switch；301- maintenance switch；40- adjustable supports；401- fixed frames；401a- straight slots；402- adjustable shelfs；403- Bolt；50- switching devices；501- housings；501a- breakers；501b- contactors；502- controllers；503- secondary circuits connect Line end；601- handles；602- convex blocks；603- sliding slots.

Embodiment

The embodiment of the utility model is described in detail below in conjunction with the accompanying drawings.

Embodiment

As depicted in figs. 1 and 2, a kind of panel switches of AC low voltage power switch box, including power distribution cabinet body 10, function counter 20th, sub-control switch 30 and two adjustable supports 40 being installed on 10 curb girder of power distribution cabinet body, the adjustable support 40 described in two On be provided with switching device 50；Relay 101 is equipped with the power distribution cabinet body 10, relay 101 is equipped with switch 101a, The lower section of relay 101 is equipped with bearing block 101b, and the afterbody of bearing block 101b is equipped with cam 101c, and the front end of bearing block 101b is set There is boss 101d, the roller bearing 101e of the boss 101d is set in bearing block 101b, and cam 101c and relay 101 101a is switched to correspond to；30 at least two, the sub-control switch, and be connected respectively by straight line copper bar with function counter 20, power distribution cabinet Body 10 is connected to the input and output pin of function counter 20 by the copper bar of 90 ° of corners.

The utility model uses adjustable support 40, makes the operating surface of all switching devices 50 in same level, convenient Operation, improves work efficiency；And the utility model is respectively mutually rotated by 90 ° by the way that the sub-control in power distribution cabinet body 10 is switched 30, Make that the trend of switch copper bar is consistent with 20 input and output copper bar trend of function counter, and connecting copper bar is greatly simplified, whole copper bar system Only up and down two layers of the copper bar of system bending, and be all simple bending, input and output are then converted directly into straight copper bar, top input Per phase and machine copper bar it is identical, bottom and machine copper bar it is also identical；And output and input and only used two kinds of copper bars, No matter client uses upper inlet-outlet line or lower inlet-outlet line or upper entering and lower leaving line, can realize, input and output copper bar position is mutual Different inlet-outlet line demands can be met by changing, and in addition not design any switching completely, it processes simple, installation side Just, and cost is reduced.

In one of the embodiments, as shown in Figure 1, being equipped with cabinet door 102, cabinet door 102 in the power distribution cabinet body 10 Upper side is equipped with switch lock 103, and the middle part of cabinet door 102 is equipped with import 104 corresponding with roller bearing 101e.Conveniently check power distribution cabinet The situation of each device in body 10, it is convenient that part is installed and is safeguarded.

In another embodiment, as shown in figure 3, further including locking bar, the locking bar passes through 101e pairs of import 104 and roller bearing It should set, and locking bar includes being located at the handle 601 of front end, is located at the convex block 602 at middle part and sets rear-end sliding slot 603, it is described Import 104 is consistent with 602 shape of convex block and the size of convex block 602 is less than import 104, and the positions and dimensions of the sliding slot 603 are equal And boss 101d consistent with boss 101d can be embedded in sliding slot 603.

Middle the roller bearing 101e and locking bar of the utility model are adopted and are made from an insulative material, and are coordinated in locking bar and roller bearing 101e During, coordinated by the convex block 602 on locking bar with import 104 so that the sliding slot on locking bar can be quickly realized in insertion process 603 coordinate with the boss 101d on roller bearing 101e, avoid other circuits in insertion process locking bar touches power distribution cabinet body 10 Or electrical equipment, security is improved, and after locking bar and roller bearing 101e coordinate, only need to pass through 601 simple rotation of handle Realize that cam 101c promotes the switch 101a on relay 101 to merge, complete " combined floodgate " operation, whole process need not open distribution Cabinet, will not influence the normal work of other electrical equipments in power distribution cabinet, its is simple in structure, easy to make, safe, practical Property is strong.

In another embodiment, as shown in figure 4, the every adjustable support 40 is by fixed frame 401, adjustable shelf 402 And bolt 403 forms, the fixed frame 401 is coupled to each other and is slidably matched with adjustable shelf 402, and the bolt 403 is worn respectively Cross fixed frame 401 and adjustable shelf 402.The adjustable support 40 that the utility model uses, its is simple and reasonable, it is easy to accomplish, just It is levelling in quickly being adjusted to 50 setting height(from bottom) of switching device, make power distribution cabinet in assembling, it is no longer necessary to process various height Mounting bracket meet the installation requirement of switching device 50, substantially reduce the power distribution cabinet construction period, work greatly improved Efficiency.

In another embodiment, as shown in Figure 5 and Figure 6, switching device 50 includes housing 501, is located on housing 501 Controller 502 and second loop return wiring end 503, interior be equipped with of the housing 501 are welded to each other fixed breaker by copper bar 501a and contactor 501b, the controller 502 is connected with breaker 501a and contactor 501b controls respectively, described secondary Circuit connection end 503 is electrically connected with breaker 501a and contactor 501b respectively.

Contactor 501b and breaker 501a are arranged in same switching device 50, more compact structure, the derailing switch The volume of part 50 is compared with the volume of both original contactor 501b and breaker 501a, volume smaller, so as to reduce power distribution cabinet Volume；Since close to arrangement, contactor 501b and breaker 501a is connected the copper bar ruler of contactor 501b and breaker 501a It is very little to greatly reduce, the material cost of copper bar is reduced, so as to reduce the manufacture cost of power distribution cabinet；Copper bar and contactor 501b and open circuit Device 501a uses welding connection structure, substantially reduces the contact resistance of tie point, so that the fever of tie point is reduced, so as to drop Caloric value in low power distribution cabinet body, improves power distribution cabinet operating mode.

In another embodiment, as shown in Fig. 2, the sub-control described at least two is connected between switching 30 by straight line copper bar It is connected to maintenance switch 301, the both ends of the maintenance switch 301 pass through the defeated of the copper bars of 90 ° of corners and power distribution cabinet body 10 respectively Enter output pin connection.Play the role of protecting circuit, prevent short circuit and open circuit, it is not necessary to which any switching, optimizing switch makes Effect.

In another embodiment, as shown in figure 4, the bottom plate of the fixed frame 401 is welded on the side of power distribution cabinet body 10 Liang Shang, the middle part of fixed frame 401 are provided with straight slot 401a, and the bottom of the adjustable shelf 402 is provided through the transverse direction of straight slot 401a Stent, the bolt 403 extend through 401 bottom plate of fixed frame and horizontal support.By rotating the bolt 403, horizontal stroke can be passed through To the height of bracket adjustment adjustable shelf 402, adjustable shelf 402 is moved up and down, reach and 50 setting height(from bottom) of switching device is adjusted Whole levelling purpose.

In another embodiment, as shown in fig. 7, being additionally provided with the power distribution cabinet body 10 with electric control module and centre Frame, described with being integrated with electric control module, power veneer 105a, monitor board 105b, delivery air switch 105c and client connects Line terminals 105d；Input copper bar 106 is integrated with the central frame；It is described input copper bar 106 by cable respectively with power Veneer 105a, monitor board 105b are connected with delivery air switch 105c.

Input copper bar 106 is used to carrying electric current in power distribution cabinet body 10, and by the next module of current output value；Input Copper bar 106 is additionally operable to input current being assigned to power veneer 105a, monitor board 105b by cable and delivery air switchs 105c, and exported by delivery air switch 105c to client's wire connection terminal 105d；The input terminal for inputting copper bar is tied for bending Structure, the output terminal of input copper bar 106 is vertical stratification, can by the way that the input terminal for inputting copper bar 106 to be designed as drawing structure Ensure on the basis of not increasing input copper bar 106 and being taken up space so that the output terminal of a upper module can be in a manner of overlap joint It is connected with this with electric control module；Copper bar dosage can be reduced, reduce cost, and installation step can be simplified, improve assembling Efficiency.

In another embodiment, the inner wall of the power distribution cabinet body 10 is equipped with temperature sensor 107, power distribution cabinet body Corresponding temperature sensor 107 is equipped with temperature-adjusting device 108 on 10 outer wall.It can be achieved real to the temperature in power distribution cabinet body 10 Now monitor and adjust, temperature stabilization in power distribution cabinet body 10 is prevented each in power distribution cabinet body 10 in a controlled range A element influences its work efficiency because temperature is excessive, or even burns；Using temperature sensor 107 and temperature-adjusting device 108 Temperature control can be achieved, improve the service life and using effect of equipment.

Embodiment described above only expresses specific embodiment of the present utility model, its description is more specific and detailed, But it should not be interpreted as limiting the scope of the present invention.It should be pointed out that for the common of this area For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to In the scope of protection of the utility model.

Claims (9)

1. a kind of panel switches of AC low voltage power switch box, it is characterised in that including power distribution cabinet body, function counter, sub-control switch With two adjustable supports being installed on power distribution cabinet body curb girder, switching device is provided with the adjustable support described in two；Institute State and relay is equipped with power distribution cabinet body, relay is equipped with switch, is equipped with bearing block below relay, the afterbody of bearing block is set There is cam, the front end of bearing block is equipped with boss, and the roller bearing of the boss is set in bearing block, and the switch of cam and relay It is corresponding；The sub-control switchs at least two, and is connected respectively by straight line copper bar with function counter, and power distribution cabinet body passes through 90 ° The copper bar of corner is connected to the input and output pin of function counter.

2. the panel switches of AC low voltage power switch box according to claim 1, it is characterised in that in the power distribution cabinet body Be equipped with cabinet door, side is equipped with switch lock in cabinet door, is equipped with the middle part of cabinet door and the corresponding import of roller bearing.

3. the panel switches of AC low voltage power switch box according to claim 2, it is characterised in that locking bar is further included, it is described Locking bar is correspondingly arranged through import with roller bearing, and locking bar includes being located at the handle of front end, is located at the convex block at middle part and is located at tail end Sliding slot, the import is consistent with convex block shape and the size of convex block is less than import, the positions and dimensions of the sliding slot with it is convex Platform is consistent and boss can be embedded in sliding slot.

4. the panel switches of AC low voltage power switch box according to claim 1, it is characterised in that the every adjustable support Formed by fixed frame, adjustable shelf and bolt, the fixed frame is coupled to each other and is slidably matched with adjustable shelf, the bolt point Chuan Guo not fixed frame and adjustable shelf.

5. the panel switches of AC low voltage power switch box according to claim 1, it is characterised in that switching device includes shell Body, the controller being located on housing and second loop return wiring end, interior be equipped with of the housing are welded to each other fixed break by copper bar Road device and contactor, the controller respectively with breaker and contactor control connect, the second loop return wiring end respectively with Breaker and contactor are electrically connected.

6. the panel switches of AC low voltage power switch box according to claim 1, it is characterised in that point described at least two Maintenance switch is connected with by straight line copper bar between control switch, the both ends of the maintenance switch pass through the copper bar of 90 ° of corners respectively It is connected with the input and output pin of power distribution cabinet body.

7. the panel switches of AC low voltage power switch box according to claim 4, it is characterised in that the bottom plate of the fixed frame It is welded on the curb girder of power distribution cabinet body, is provided with straight slot in the middle part of the fixed frame, the bottom of the adjustable shelf is provided through straight slot Horizontal support, the bolt extends through fixed frame bottom plate and horizontal support.

8. the panel switches of AC low voltage power switch box according to claim 1 or 2, it is characterised in that the power distribution cabinet sheet It is additionally provided with vivo with electric control module and central frame, it is described with being integrated with power veneer, monitor board, output in electric control module Air switch and client's wire connection terminal；Input copper bar is integrated with the central frame；The input copper bar is distinguished by cable Connected with power veneer, monitor board and delivery air switch.

9. the panel switches of AC low voltage power switch box according to claim 1 or 2, it is characterised in that the power distribution cabinet sheet The inner wall of body is equipped with temperature sensor, and corresponding temperature sensor is equipped with temperature-adjusting device on the outer wall of power distribution cabinet body.