CN202906264U - Main circuit connector for drawer units in low-voltage distribution cabinets - Google Patents

Main circuit connector for drawer units in low-voltage distribution cabinets Download PDF

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Publication number
CN202906264U
CN202906264U CN 201220558982 CN201220558982U CN202906264U CN 202906264 U CN202906264 U CN 202906264U CN 201220558982 CN201220558982 CN 201220558982 CN 201220558982 U CN201220558982 U CN 201220558982U CN 202906264 U CN202906264 U CN 202906264U
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CN
China
Prior art keywords
phase
connector
connector assembly
voltage distribution
low
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Expired - Fee Related
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CN 201220558982
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Chinese (zh)
Inventor
周金隆
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WENZHOU DEYUAN ELECTRIC CO Ltd
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WENZHOU DEYUAN ELECTRIC CO Ltd
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Priority to CN 201220558982 priority Critical patent/CN202906264U/en
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Abstract

The utility model relates to a main circuit connector for drawer units in low-voltage distribution cabinets. At least three phases of connecting components on the connector are arranged into two rows in a staggered mode, one connecting component is arranged between two adjacent connecting components in the other row, and the phase spacing between every two adjacent phases of connecting components is greater than or equal to 50mm. As the three phases of connecting components are arranged into two rows in a staggered mode, the spacing between any two adjacent phases of connecting components meets the requirement of phase spacing, the creepage distance between any two phases is increased, safe electrical distance is ensured, and effective phase spacing can be ensured without the need for additionally arranging insulating sheets on the connector for safe isolation. Meanwhile, the wiring space available to each phase is effectively increased, the operation space is effectively increased during the implementation of connection between a bolts and a cable, the operation is convenient, and the requirement on reliable connection between the bolt and the cable can be easily satisfied.

Description

A kind of low-voltage distribution cabinet unit drawer main circuit switch
Technical field
The utility model relates to a kind of connector, and specifically a kind of main circuit switch that is applicable to the low-voltage distribution cabinet unit drawer belongs to low-voltage electrical apparatus design and fabrication technology field.
Background technology
The main circuit switch of unit drawer is comprised of the moving connector that cooperatively interacts and quiet connector in the low-voltage distribution cabinet.When concrete the use, main circuit switch is comprised of two groups of moving connectors and quiet connector, and wherein one group connects as inlet wire, and another group connects as outlet.Quiet connector is fixed on the rear bulkhead of low-voltage distribution cabinet motionless, A, B, C three-phase connector assembly are two-way connection on it, connector assembly one end is connected with moving connector, the reservation connecting hole connection on the corresponding copper bar of related circuit in the connector assembly other end and the power distribution cabinet; Moving connector is arranged on the rear plate of unit drawer, and along with the pull of unit drawer moves together, the A on it, B, C three-phase connector assembly are two-way connection.Be used for the connections such as electric component that the connector assembly terminals of the moving connector that inlet wire connects are connected with unit drawer, the other end of connector assembly is connected the inlet wire part as the unit drawer loop with external power source such as bus etc.; Be used for the connections such as electric component that an end of the connector assembly of the moving connector that outlet connects is connected with unit drawer, the other end be connected connector and connect outgoing line part as the unit drawer loop.After moving connector is realized socket connection along with the motion of drawer with quiet connector, inlet wire is connected with the bus external power supply with moving connector, outlet is with moving connector and being connected the connector connection, just realized unit drawer and power distribution cabinet between the connection in loop.
Because the mode of push-and-pull that adopts the main circuit switch of unit drawer in use realizes moving connector and is connected connection and the disconnection of connector, because drawer backboard has certain elasticity, patching in the process unavoidably because patching between such elastic conducting actuating connector and the quiet connector is insecure of pushing away and draw.Therefore will move the bottom that connector is arranged on the low-voltage distribution cabinet unit drawer and reduce the elasticity of drawer backboard with the rigidity of utilizing the unit drawer base plate on the impact of connector stability.Thus, the general understanding of those skilled in the art thinks, it is better that lower its of the distance of connector and unit drawer base plate whole height nearer and connector patches stability.Therefore in order to reduce thrust and pulling force to the impact of connector stability, the technical staff all connector is set to A, B, the C three-phase is transversely arranged or the structure of the yi word pattern that A, B, C, N four are mutually transversely arranged to reduce the whole height of connector.
Because the standard size of China's drawout cubicle width is 600mm, the rear board size of drawer unit is about 510mm, needs to install two transversely arranged three-phases or four phase connectors in drawout cubicle, therefore the phase spacing of connector has just been proposed certain requirement.General phase spacing is fixed as 50mm in the industry, the terminals of moving connector adopt the riveting line to connect, can satisfy the electrical distance requirement, but the moving connector terminals of the structure that the riveting line connects and inserted sheet end are structure as a whole, strengthen the wire chap that connects along with electric current, be offset by the too small wire distortion drive inserted sheet end that causes of restriction radius of curvature of the unit drawer degree of depth, so that monolateral situation about patching appears when patching in inserted sheet end unbalance stress, inserted sheet end virtual connection part contact resistance increases, Contact Temperature raises, the reliability that impact patches is brought potential safety hazard.When the terminals employing bolt mode of connection of moving connector, its terminals and inserted sheet are that the activity surplus that can guarantee the inserted sheet end of split is not affected by terminals, patch safety and reliability.When therefore the switch below 400A connected, phase spacing was that 50mm can satisfy the electrical safety insulation distance.And if when being applied to switch more than the 400A and connecting, the phase spacing of 50mm is difficult to guarantee electric safe insulation distance.
For this reason, propose to adopt the main circuit switch of bolt wiring to avoid the riveting line to connect the monolateral situation about patching that causes in the prior art.If but the mode of employing bolt wiring, the length of bolt is relevant with the wire thickness, if phase spacing is 50mm, the connection bolt of A phase and distance between the B phase connector assembly be too little can't to satisfy the requirement of the creepage distance beeline of insulating material surface (between two current-carrying parts along).If be 60mm and phase spacing is set, so that the distance between connecting bolt and adjacent phase connector assembly satisfies the safe insulation distance, just cause the connector yardstick excessive, particularly in a unit drawer, need to install under the situation of two plug connectors, on the rear plate of unit drawer, laterally arrange its yardstick of installation and broken through the in the market size of general cabinet.Unless drop into a large amount of funds to comprehensively reequiping at the cabinet that uses with the user, otherwise can not apply.
Improving one's methods of the main circuit switch of the bolt wiring of having adopted at present is size according to general cabinet, adopts the phase spacing of 55mm, increases simultaneously the insulating elements such as insulation board between two-phase, prevents that phase spacing from too closely causing creepage accident.
Such as existing plug-in unit of the disclosed a kind of complete switch drawer of patent documentation CN202142804U, as depicted in figs. 1 and 2, comprise plug connector B1, bolt B 2, cable B3, insulating barrier B4, conductive plate B5, conducting strip B6, wherein the current-carrying part of plug connector B1 is that multi-disc conducting strip B6 forms, what of conducting strip B6 quantity are decided by the size of electric current, one of conducting strip B6 is directly inserted on the bus, directly draw through conductive plate B5 the other end, then punching on conductive plate B5, effectively connect with cable B3 by connecting bolt B2, plug connector B1 connects insulation board B4, prevents that phase spacing from too closely causing the accidents such as creepage.This scheme has just adopted in the mode of alternate increase insulation board and has avoided creepage accident, but because phase spacing is very little, operation was very inconvenient when connecting bolt B2 effectively connected with cable B3, especially to the connection of B phase, B is between A phase and C phase, the space on both sides is all very narrow and small, is not easy to very much the operation of wiring.If between two-phase, add again insulation board, cause further reducing of operating space that connecting bolt B2 and cable B3 effectively be connected, be unfavorable for effective connection the between connecting bolt B2 and the cable B3.On the other hand, so narrow space has also further limited the length of connecting bolt B2, and when the number of cables that especially needs to connect increased to some extent, the restriction of operating space and connecting bolt length brought difficulty all for effective connecting bolt and cable.Simultaneously be connected connection with connector be not to be fixedly connected with reliably to insulation board B4, easily drops in the use and lose, and can't guarantee to continue to provide reliably safe insulation to isolate.
In sum, the connector of yi word pattern structure is subject to the impact of phase spacing, causes the space between the adjacent two-phase very little, is not easy to reliable connection the between connecting bolt and the cable; Especially increasing insulation board between two-phase can be connected effective connection to connecting bolt again and further make troubles with cable.But those skilled in the art think that all connector will be arranged on the bottom of unit drawer, the closer to the lower stability that just more can guarantee connector of whole height of base plate and the connector of unit drawer.Therefore the technical staff generally believes and can only be set to the requirement that the yi word pattern structure could satisfy stability by connector in the prior art.To sum up, how to provide and a kind ofly can satisfy simultaneously international standard to the requirement of phase spacing, can make things convenient for reliable connection between connecting bolt and the cable again, the connector that satisfies simultaneously stability becomes puzzlement those skilled in the art's a difficult problem.
In sum, the connector of yi word pattern structure is difficult to satisfy international standard to the requirement of phase spacing in the situation that adapt to existing unit drawer size, can be connected effective connection with cable to connecting bolt and makes troubles and increase insulation board between two-phase.How providing a kind of phase spacing that can satisfy simultaneously in unit drawer dimensional requirement, the international standard requires and can satisfy the reliable connector of stable connection to become a difficult problem that perplexs those skilled in the art.
And the applicant is finding through long-term exploratory development, and the position that plate produces the strain impact behind the low-voltage distribution cabinet unit drawer is mainly in the top position, middle part of rear plate, and because the impact of drawer side also has same rigidity in the drawer backboard both sides.Propose to improve on this basis the yi word pattern arrangement form of connector, to patch stability and connection reliability do not have influential, a kind of low-voltage distribution cabinet unit drawer main circuit switch that meets the demands fully.
In addition, drop into unnecessary potential safety hazards such as causing short circuit on the connector in order to prevent foreign matter, usually will add an insulating cover in the outside of quiet connector, this insulating cover is also born alternate insulation buffer action simultaneously.Existing yi word pattern connector is to install by the form of buckle to be connected with insulating cover, and as shown in Figure 3 and Figure 4, Fig. 3 has provided the vertical view of connector in the prior art, its adjacent two alternate draw-in groove B72 that is provided with; Shown in Figure 4 is insulating cover of the prior art, is provided with the fastener B71 that matches with draw-in groove B72 on it, fastener B71 is inserted into realizes fixing insulating cover B7 among the draw-in groove B72.Adopt this mode that insulating cover is fixed, and insecure, and insulating cover B7 easily comes off and loses, thereby can't continue to play reliably protective action and insulation buffer action, causes the unnecessary potential safety hazards such as short circuit.
The utility model content
Technical problem to be solved in the utility model has two:
The one, the restriction that is subject to the unit drawer size in the prior art during switch drawer main circuit plugin card installation of yi word pattern structure is difficult to satisfy the requirement of creepage distance, simultaneously wiring hard problem.And then provide under a kind of prerequisite that in general cabinet, does not reduce connection reliability, satisfy simultaneously the phase spacing requirement in the international standard, and be convenient to the low-voltage distribution cabinet unit drawer main circuit switch of wiring.
The 2nd, insulating cover of the prior art is fixed by the mode of buckle-type, easily come off, can't continue to play reliably protective action and insulation buffer action, cause the problem of the potential safety hazard that short circuit etc. is unnecessary, and then a kind of low-voltage distribution cabinet unit drawer main circuit switch that fixedly secures insulating cover is provided.
For solving the problems of the technologies described above, the utility model is achieved through the following technical solutions:
A kind of low-voltage distribution cabinet unit drawer main circuit switch, at least three-phase connector assembly on it is staggered and is set to two row, and a connector assembly is arranged between two adjacent connector assemblies of another row, and the phase spacing between the arbitrary neighborhood two-phase connector assembly is more than or equal to 50mm.
Distance between described two row is not more than 55mm.
Distance between described two row is 50mm; Phase spacing between the arbitrary neighborhood two-phase connector assembly is 50mm.
Distance between described two row is 55mm; Phase spacing between the arbitrary neighborhood two-phase connector assembly is 50mm or 55mm.
Described connector is the three-phase connector, and the two-phase connector assembly equidistant placement that wherein a phase connector assembly is adjacent with another row consists of Chinese character pin-shaped; Be provided with the delegation of two-phase connector assembly near the rear plate bottom of described unit drawer.
Described connector is four phases, and four phase connector assemblies are staggered and are set to two row.
The A phase connector assembly of the moving connector in the described connector and C mutually connector assembly are arranged in the delegation near the described rear plate bottom of described unit drawer, and B phase connector assembly is arranged in the delegation of the described rear plate bottom that is higher than described unit drawer; The A phase connector assembly of the quiet connector in the described connector, C phase connector assembly and B phase connector assembly are located on the rear bulkhead of described low-voltage distribution cabinet on the corresponding position.
Form three moving connector installing holes at described moving connector, and three described moving connector installing holes lay respectively between A phase connector assembly and the B phase connector assembly, between A phase connector assembly and the C phase connector assembly, between B phase connector assembly and the C phase connector assembly.
Be provided with three quiet connector installing holes at described quiet connector, described three quiet connector installing holes lay respectively between A phase connector assembly and the B phase connector assembly, between A phase connector assembly and the C phase connector assembly, between B phase connector assembly and the C phase connector assembly.
A location of each moulding of the top convex shoulder of the two-phase connector assembly on described quiet connector bottom close described low-voltage distribution cabinet, convex shoulder center, described location forms the insulating cover location hole; Also comprise insulating cover, its shape and described quiet connector are complementary, and with the corresponding position of convex shoulder, described location lug are set on the described insulating cover, and described lug center is provided with the insulating cover installing hole that adapts with described insulating cover location hole.
The technique scheme of utility model has the following advantages compared to existing technology:
(1) low-voltage distribution cabinet unit drawer main circuit switch described in the utility model, at least three-phase connector assembly on it is staggered and is set to two row, and a connector assembly is arranged between two adjacent connector assemblies of another row, and the distance between the arbitrary neighborhood two-phase connector assembly is more than or equal to 50mm.Owing to making the setting that is staggered of three-phase connector assembly, can be so that when arbitrarily the distance between the two-phase satisfies the requiring of spaced apart, increased the creepage distance between any two-phase connector assembly, guaranteed safe electrical distance so that connector all do not need to increase again insulating trip be used for alternate safety isolation just can guarantee effectively separately from.Simultaneously each phase connector assembly can with wiring space obtained effective raising, the operating space has obtained effective increase when realizing being connected of bolt and cable, convenient operation, the bolt that is content with very little is connected with the reliable of cable.
(2) low-voltage distribution cabinet unit drawer main circuit switch described in the utility model, described at least three-phase connector assembly is staggered and is set to two row, and the distance between its two row is not more than 55mm.The height of connector is when 55mm is following, and by the rigidity of drawer backboard both sides, this altitude range does not have influentially to patching stability and connection reliability, meets the demands fully.
(3) low-voltage distribution cabinet unit drawer main circuit switch described in the utility model, the distance between two row is 50mm; Phase spacing between the arbitrary neighborhood two-phase connector assembly is 50mm; Perhaps the distance between two row is 55mm; Phase spacing between the arbitrary neighborhood two-phase connector assembly is 50mm or 55mm.The product that so is arranged so that the application satisfies the present domestic industry to the requirement of product specification, can be complementary with miscellaneous part on good and the market.
(4) low-voltage distribution cabinet unit drawer main circuit switch described in the utility model, described connector is the three-phase connector, the two-phase connector assembly equidistant placement that wherein a phase connector assembly is adjacent with another row consists of Chinese character pin-shaped; Be provided with the delegation of two-phase connector assembly near the rear plate bottom of described unit drawer.So design, so that the structure of product is simpler, profile is more attractive in appearance, is more suitable for batch production.
(5) low-voltage distribution cabinet unit drawer main circuit switch described in the utility model, connector is four phases, four phase connector assemblies are staggered and are set to two row, four phase connector assemblies are set to integrative-structure, on moving connector and the described quiet connector mutually connector assembly of N is set all, and A phase connector assembly, B phase connector assembly, C phase connector assembly and N mutually connector assembly be staggered.If when patching mutually for four, as long as N phase plug-in unit is inserted in the N phase connector assembly and can realizes, make things convenient for three-phase to become four and use mutually.
(6) low-voltage distribution cabinet unit drawer main circuit switch described in the utility model, form three moving connector installing holes at moving connector, and three moving connector installing holes lay respectively between A phase connector assembly and the B phase connector assembly, between A phase connector assembly and the C phase connector assembly, between B phase connector assembly and the C phase connector assembly.Three triangular in shape arranging of moving connector installing hole are installed in moving connector on the movable plate of unit drawer not only convenient but also firm.
(7) low-voltage distribution cabinet unit drawer main circuit switch described in the utility model, be provided with three quiet connector installing holes at quiet connector, three quiet connector installing holes lay respectively between A phase connector assembly and the B phase connector assembly, between A phase connector assembly and the C phase connector assembly, between B phase connector assembly and the C phase connector assembly.Three triangular in shape arranging of quiet connector installing hole are installed in low-voltage distribution with quiet connector not only convenient but also firm cashier's office in a shop.
(8) low-voltage distribution cabinet unit drawer main circuit switch described in the utility model, a location of each moulding of the top convex shoulder of the two-phase connector assembly on quiet connector bottom close low-voltage distribution cabinet, convex shoulder center, location forms the insulating cover location hole; Also comprise insulating cover, its shape and quiet connector are complementary, and with the corresponding position of convex shoulder, location lug are set on the insulating cover, and the lug center is provided with the insulating cover installing hole that adapts with the insulating cover location hole.When concrete the use, insulating cover can be adopted the fixture such as the screw fixed insulation cover that matches with the insulating cover location hole, so that insulating cover firmly is fixed on the connector, be not easy to come off.
Description of drawings
For content of the present utility model is more likely to be clearly understood, below in conjunction with accompanying drawing, the utility model is described in further detail, wherein,
Fig. 1 is the structural representation of the disclosed a kind of main circuit switch of prior art;
Fig. 2 is the structural representation of the disclosed a kind of main circuit switch conducting strip of prior art;
Fig. 3 is the vertical view of disclosed a kind of connector with draw-in groove in the prior art;
Fig. 4 is the structural representation of disclosed a kind of insulating cover with fastener in the prior art;
Fig. 5 is the perspective view of moving connector described in the utility model;
Fig. 6 is the front view of moving connector described in the utility model;
Fig. 7 is the rearview of moving connector described in the utility model;
Fig. 8 is the perspective view of quiet connector described in the utility model;
Fig. 9 is the front view of quiet connector described in the utility model;
Figure 10 is the rearview of quiet connector described in the utility model;
Figure 11 is that insulating cover described in the utility model is fixed in the annexation schematic diagram on the quiet connector;
Figure 12 is the schematic diagram of a kind of insulating cover described in the utility model;
Figure 13 is the perspective view of the moving connector with N phase connector assembly described in the utility model;
Reference numeral is expressed as among the figure: 1-moves connector, 11-moves the connector installing hole, the A phase connector assembly of the moving connector of 1A-, the B phase connector assembly of the moving connector of 1B-, the C phase connector assembly of the moving connector of 1C-, the N phase connector assembly of the moving connector of 1N-, the quiet connector of 2-, 21-convex shoulder, the 22-location hole, the quiet connector installing hole of 23-, the A phase connector assembly of the quiet connector of 2A-, the B phase connector assembly of the quiet connector of 2B-, the C phase connector assembly of the quiet connector of 2C-, the 4-insulating cover, 41-lug, 42-insulating cover installing hole.
Embodiment
Embodiment 1
The present embodiment provides a kind of low-voltage distribution cabinet unit drawer main circuit switch, at least three-phase connector assembly on it is staggered and is set to two row, and a connector assembly is arranged between two adjacent connector assemblies of another row, and the phase spacing between the arbitrary neighborhood two-phase connector assembly is more than or equal to 50mm;
Owing to making the setting that is staggered of three-phase connector assembly, can be so that when arbitrarily the distance between the two-phase connector assembly satisfies the requiring of phase spacing, increased the creepage distance between any two-phase connector assembly, guaranteed safe electrical distance so that connector all do not need to increase again insulating trip be used for alternate safety isolation just can guarantee effectively separately from.Simultaneously each phase connector assembly can with wiring space obtained effective raising, the operating space has obtained effective increase when realizing being connected of bolt and cable, convenient operation, the bolt that is content with very little is connected with the reliable of cable.
And, as the confessed professional etiquette of those skilled in the art, when the low-voltage distribution cabinet unit drawer is installed with once moving connector, all can arrange near both sides or the bottom of plate behind the unit drawer, and the poorest position of its stability should be rear plate center for unit drawer.Therefore when being installed, moving connector avoided the poorest position of plate upward stability behind the unit drawer.Although but it has certain height relies on the rigidity of unit drawer side plate also still can satisfy the stability requirement that patches.
Embodiment 2
On the basis of embodiment 1, described in the present embodiment at least the three-phase connector assembly be staggered and be set to two row, the distance between its two row is not more than 55mm.The height of connector is when 55mm is following, and by the rigidity of the later half both sides of drawer, this altitude range does not have influentially to patching stability and connection reliability, meets the demands fully.
Embodiment 3
The described low-voltage distribution cabinet unit drawer of the present embodiment main circuit switch, it does following improvement to embodiment 1 or embodiment 2, and the distance between its two row is 50mm; Phase spacing between the arbitrary neighborhood two-phase connector assembly is 50mm; Perhaps the distance between two row is 55mm; Phase spacing between the arbitrary neighborhood two-phase connector assembly is 50mm or 55mm.
Phase spacing refers to the phase spacing of low-voltage distribution cabinet vertical bus, because connector of the prior art all is to adopt the structure of yi word pattern to arrange, its phase spacing is exactly that direct range between the two-phase connector assembly center equals phase spacing and gets final product.Be staggered and among the application it is improved to, take Fig. 5 as example, wherein the phase spacing between A phase and the B phase is not that A phase connector assembly center is to the distance at B phase connector assembly center, but B phase connector assembly does vertical line on A phase connector assembly and the C straight line that connector assembly forms mutually and forms projection, and then A phase connector assembly is A phase connector assembly center and the distance of B phase connector assembly between the center of the projection on A, the C two-phase straight line with phase spacing between the B phase connector assembly.
The present embodiment is arranged so that so the application's product satisfies the present domestic industry to the requirement of product specification, can be complementary with miscellaneous part on good and the market.
Embodiment 4
On the basis of embodiment 1 to embodiment 3 arbitrary embodiment, for so that the structure of product is simpler, profile is more attractive in appearance, and structure is more suitable for batch production.To shown in Figure 10, connector described in the present embodiment is the three-phase connector such as Fig. 5, and the two-phase connector assembly equidistant placement that wherein a phase connector assembly is adjacent with another row consists of Chinese character pin-shaped; Be provided with the delegation of two-phase connector assembly near the rear plate bottom of described unit drawer.And as shown in Figure 6 and Figure 7, assembly is near the bottom setting of described unit drawer mutually with C for the A phase assembly of described moving connector 1, and the bottom that B phase assembly is higher than described unit drawer arranges; As shown in Figure 9 and Figure 10, assembly is near the bottom setting of described low-voltage distribution cabinet mutually with C for the A phase assembly of described quiet connector 2, and the bottom that B phase assembly is higher than described low-voltage distribution cabinet arranges.
And, from Fig. 5 to Fig. 7, can find out, form three moving connector installing holes 11 at described moving connector 1, and between the A phase connector assembly 1A that three described moving connector installing holes 11 lay respectively at moving connector and the B phase connector assembly 1B of moving connector, between the A phase connector assembly 1A of moving connector and the C phase connector assembly 1C of moving connector, move between the C phase connector assembly 1C of the B phase connector assembly 1B of connector and moving connector.Three described moving connector installing hole 11 triangular in shape arranging are installed in moving connector on the movable plate of unit drawer not only convenient but also firm.
Embodiment 5
The present embodiment is as the improvement of implementing 1 to embodiment 3 arbitrary embodiment, and described connector is four phases, and four phase connector assemblies are staggered and are set to two row.On described moving connector 1 and the described quiet connector 2 mutually connector assembly of N is set all, and A phase assembly, B phase assembly, C phase assembly and N mutually connector assembly be staggered.As shown in figure 13, for moving connector is the structural representation of four phases, wherein the N of the C phase connector assembly 1C of the B phase connector assembly 1B of the A phase connector assembly 1A of moving connector, moving connector, moving connector and moving connector mutually connector assembly 1N be staggered.Distance between described two row is 50mm; Phase spacing between the arbitrary neighborhood two-phase connector assembly is 50mm.Distance between described two row is 55mm; Phase spacing between the arbitrary neighborhood two-phase connector assembly is 50mm or 55mm.Owing to making the setting that is staggered of four phase connector assemblies, can be so that when arbitrarily the distance between the two-phase satisfies the requiring of phase spacing, increased the creepage distance between any two-phase, guaranteed safe electrical distance, each mutually available wiring space has obtained effective raising simultaneously, the operating space has obtained effective increase when realizing being connected of bolt and cable, convenient operation, and the bolt that is content with very little is connected with the reliable of cable.
Be suitable for four in the present embodiment when patching mutually, as long as N phase plug-in unit is inserted in the N phase connector assembly and can realizes, make things convenient for three-phase to become four and use mutually.
Embodiment 6
The difference of the present embodiment and embodiment 5 is, N phase connector can be arranged separately in the present embodiment, can outside embodiment 1 to embodiment 5 described connector, arrange separately, and be not that embodiment 5 described N phase connector assemblies and other three-phase connector assemblies are structure as a whole.
In the process of practical application, if the client needs four phase structures, can provide embodiment 5 or two kinds of different structures of the present embodiment for it according to client's demand so.
Embodiment 7
The present embodiment is done following improvement on the basis as above-mentioned arbitrary embodiment, extremely shown in Figure 10 such as Fig. 8, a location of each moulding of the top convex shoulder 21 of the two-phase connector assembly on described quiet connector 2 bottom close described low-voltage distribution cabinet, convex shoulder 21 centers, described location form insulating cover location hole 22; Also comprise insulating cover 4, its shape and described quiet connector 2 are complementary, and with described location convex shoulder 21 corresponding positions lug 41 are set on the described insulating cover 4, and described lug 41 centers are provided with the insulating cover installing hole 42 that adapts with described insulating cover location hole 22.Figure 11 has provided described insulating cover 4 and has been installed in annexation schematic diagram on the described quiet connector 2, Figure 12 has provided a kind of insulating cover structure, wherein be provided with the lug 41 that matches with described location convex shoulder 21 on the described quiet connector 2 at described insulating cover 4, be provided with described insulating cover installing hole 42 with described insulating cover location hole 22 corresponding positions on the described lug 41, after when actual installation, adopting keeper to pass described insulating cover location hole 22 and described insulating cover installing hole 42 described insulating cover 4 is fixedly connected on the described quiet connector 2, so fixing described insulating cover 4 is not easy to come off.
And, extremely shown in Figure 10 such as Fig. 8, be provided with three quiet connector installing holes 23 at described quiet connector 2, between the A phase assembly 2A that described three quiet connector installing holes 23 lay respectively at quiet connector and the B phase assembly 2B of quiet connector, between the A phase assembly 2A of quiet connector and the C phase assembly 2C of quiet connector, between the C phase assembly of the B phase assembly 2B of quiet connector and quiet connector.Three described quiet connector installing hole 23 triangular in shape arranging are installed in low-voltage distribution with described quiet connector 2 not only convenient but also firm cashier's office in a shop.
Obviously, above-described embodiment only is for example clearly is described, and is not the restriction to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all execution modes exhaustive.And the apparent variation of being extended out thus or change still are among the protection range of the invention.

Claims (10)

1. low-voltage distribution cabinet unit drawer main circuit switch is characterized in that:
At least three-phase connector assembly on it is staggered and is set to two row, and a connector assembly arranges between two adjacent connector assemblies of another row, and the phase spacing between the arbitrary neighborhood two-phase connector assembly is more than or equal to 50mm.
2. low-voltage distribution cabinet unit drawer main circuit switch according to claim 1 is characterized in that:
Distance between described two row is not more than 55mm.
3. low-voltage distribution cabinet unit drawer main circuit switch according to claim 2 is characterized in that:
Distance between described two row is 50mm; Phase spacing between the arbitrary neighborhood two-phase connector assembly is 50mm.
4. low-voltage distribution cabinet unit drawer main circuit switch according to claim 2 is characterized in that:
Distance between described two row is 55mm; Phase spacing between the arbitrary neighborhood two-phase connector assembly is 50mm or 55mm.
5. arbitrary described low-voltage distribution cabinet unit drawer main circuit switch according to claim 1-4 is characterized in that:
Described connector is the three-phase connector, and the two-phase connector assembly equidistant placement that wherein a phase connector assembly is adjacent with another row consists of Chinese character pin-shaped; Be provided with the delegation of two-phase connector assembly near the rear plate bottom of described unit drawer.
6. arbitrary described low-voltage distribution cabinet unit drawer main circuit switch according to claim 1-4 is characterized in that:
Described connector is four phases, and four phase connector assemblies are staggered and are set to two row.
7. low-voltage distribution cabinet unit drawer main circuit switch according to claim 6 is characterized in that:
The A phase connector assembly of the moving connector (1) in the described connector and C mutually connector assembly are arranged in the delegation near the described rear plate bottom of described unit drawer, and B phase connector assembly is arranged in the delegation of the described rear plate bottom that is higher than described unit drawer;
The A phase connector assembly of the quiet connector (2) in the described connector, C phase connector assembly and B phase connector assembly are located on the rear bulkhead of described low-voltage distribution cabinet on the corresponding position.
8. low-voltage distribution cabinet unit drawer main circuit switch according to claim 7 is characterized in that:
Form three moving connector installing holes (11) at described moving connector (1), and three described moving connector installing holes (11) lay respectively between A phase connector assembly and the B phase connector assembly, between A phase connector assembly and the C phase connector assembly, between B phase connector assembly and the C phase connector assembly.
9. it is characterized in that according to claim 7 or 8 described low-voltage distribution cabinet unit drawer main circuit switchs:
Be provided with three quiet connector installing holes (23) at described quiet connector (2), described three quiet connector installing holes (23) lay respectively between A phase connector assembly and the B phase connector assembly, between A phase connector assembly and the C phase connector assembly, between B phase connector assembly and the C phase connector assembly.
10. low-voltage distribution cabinet unit drawer main circuit switch according to claim 9 is characterized in that:
A location of each moulding of the top convex shoulder (21) of the two-phase connector assembly bottom the upper and close described low-voltage distribution cabinet of described quiet connector (2), described location convex shoulder (21) center forms insulating cover location hole (22);
Also comprise insulating cover (4), its shape and described quiet connector (2) are complementary, described insulating cover (4) is upper to arrange lug (41) with the corresponding position of described location convex shoulder (21), and described lug (41) center is provided with the insulating cover installing hole (42) that adapts with described insulating cover location hole (22).
CN 201220558982 2012-10-29 2012-10-29 Main circuit connector for drawer units in low-voltage distribution cabinets Expired - Fee Related CN202906264U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102969664A (en) * 2012-10-29 2013-03-13 温州德源电气有限公司 Main circuit connector for unit drawer of low-voltage switch box
CN103700986A (en) * 2013-12-28 2014-04-02 常州新苑星电器有限公司 Intelligent type low-voltage in-set draw-out switch device and signal dynamic and static plugins thereof
CN105449462A (en) * 2014-08-27 2016-03-30 镇江默勒电器有限公司 Shielding communication connector in drawer circuit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102969664A (en) * 2012-10-29 2013-03-13 温州德源电气有限公司 Main circuit connector for unit drawer of low-voltage switch box
CN103700986A (en) * 2013-12-28 2014-04-02 常州新苑星电器有限公司 Intelligent type low-voltage in-set draw-out switch device and signal dynamic and static plugins thereof
CN103700986B (en) * 2013-12-28 2018-09-14 常州新苑星电器有限公司 The complete draw out switchgear of intelligent type low-voltage and its signal sound plug-in unit
CN105449462A (en) * 2014-08-27 2016-03-30 镇江默勒电器有限公司 Shielding communication connector in drawer circuit

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