CN214477302U - Load break switch - Google Patents

Abstract

A load break switch comprises a switch body and a side-mounted outgoing line module detachably connected with the switch body, wherein the switch body comprises a body shell, an operating mechanism and at least one phase circuit, the operating mechanism and the at least one phase circuit are arranged in the body shell, the phase circuit comprises an incoming line busbar, an outgoing line busbar, a contact system and a fuse, the contact system and the fuse are connected in series between the incoming line busbar and the outgoing line busbar, the contact system comprises a movable contact component and a fixed contact which are matched with each other, and the operating mechanism is connected with the movable contact component; the side-mounted outgoing line module comprises a side outgoing line base and a wiring terminal installed on the side outgoing line base, the side-mounted outgoing line module is installed on the side face of the switch body and is arranged side by side with the switch body, an outgoing line busbar is connected with the wiring terminal, and different side-mounted outgoing line modules can be replaced according to needs to meet wiring requirements for connecting different wires.

Description

Load break switch

Technical Field

The invention relates to the field of low-voltage electric appliances, in particular to a load break switch.

Background

The load break switch is provided with an energy storage isolating switch and a pluggable fuse set, is an important switching device of a power distribution system, a user drives an operating mechanism through a handle to drive a moving contact to be matched with a static contact so as to switch on and off a circuit, and the fuse set provides current protection.

When the load break switch is installed, due to the limitation of installation space, the wiring requirements of different wiring directions and different types of wires are met. The existing load break switch can only be adapted to one assembly mode generally, and when different wiring requirements need to be adapted, different load break switches need to be used, so that the cost is higher.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a load break switch.

In order to achieve the purpose, the invention adopts the following technical scheme:

a load break switch comprises a switch body and a side-mounted outgoing line module detachably connected with the switch body, wherein the switch body comprises a body shell, an operating mechanism and at least one phase circuit, the operating mechanism and the at least one phase circuit are arranged in the body shell, the phase circuit comprises an incoming line busbar, an outgoing line busbar, a contact system and a fuse, the contact system and the fuse are connected in series between the incoming line busbar and the outgoing line busbar, the contact system comprises a movable contact component and a fixed contact which are matched with each other, and the operating mechanism is connected with the movable contact component; the side-mounted outgoing line module comprises a side outgoing line base and a wiring terminal installed on the side outgoing line base, the side-mounted outgoing line module is installed on the side face of the switch body and arranged side by side with the switch body, and the outgoing line busbar is connected with the wiring terminal.

Preferably, one end of the side-mounted wire outlet module is a second wire end, the second wire end is in a multi-stage step shape and comprises a plurality of sequentially connected wire connecting steps, the top surface of each wire connecting step is a second wire connecting top surface, and a wire connecting terminal is mounted on the second wire connecting top surface; the side face of one side, connected with the body shell, of the side outgoing line base is an incoming line side face, a first outgoing line lug of the outgoing line busbar extends to the side outgoing line base from the incoming line side face, and the first outgoing line lug of the outgoing line busbar is connected with the wiring terminal.

Preferably, the side outlet base is provided with fifth fixing holes penetrating through the side outlet base from two sides, the body shell is provided with sixth fixing holes, and the third fixing screws fixedly connect the side-mounted outlet module with the body shell through the fifth fixing holes and the sixth fixing holes.

Preferably, the body housing includes a base portion and a main body portion mounted on the base portion, the main body portion is used for accommodating an operating mechanism and a contact system and a fuse of the phase circuit, and the base portion is used for mounting the incoming busbar and the outgoing busbar; and one side or two sides of the base part are provided with second wire outlet holes for extending the wire outlet busbars.

Preferably, one side or two sides of the base part are provided with dovetail grooves, the dovetail grooves extend to the bottom side of the base part, and the wire inlet side face of the side wire outlet base is provided with a limiting guide convex rib matched with the dovetail grooves.

Preferably, the terminal includes a terminal screw, and a terminal rod of the terminal screw is vertically disposed on the second terminal top surface.

Preferably, the wiring screw comprises a wiring rod and a screw cap at one end of the wiring rod, a screw mounting groove is formed in the second wiring top surface, the screw cap of the wiring screw is mounted in the screw mounting groove of the second wiring top surface, the outgoing busbar comprises a first outgoing line lug for being connected with the wiring terminal, a first outgoing line wiring hole and a first outgoing line assembly hole are formed in the first outgoing line lug, and the first outgoing line wiring hole of the first outgoing line lug penetrates through the wiring rod of the wiring screw to be pressed on the screw cap to fix the wiring screw; and a third wire outlet screw hole is also formed in the top surface of the second wiring, and the second wire outlet screw fixes the first wire outlet lug and the side wire outlet base from the bottom side of the side wire outlet base through the third wire outlet screw hole and the first wire outlet assembly hole.

Preferably, a plurality of second shield caps for respectively shielding the connection terminals mounted on the plurality of connection steps are included.

Preferably, the second shield is rotatably mounted on the corresponding wiring step.

Preferably, a conductor limiting groove corresponding to the wiring terminal is arranged at one end, close to the second wiring end of the side wiring base, of the second wiring top surface.

Preferably, each wiring step is arranged side by side along the width direction of the side wire outlet base and connected with a plurality of wiring terminals, and the plurality of wiring terminals are connected with first wire outlet lugs of the same wire outlet bus bar; or each wiring step is provided with one wiring terminal, and the first outgoing line lug of the outgoing line busbar is connected with the wiring terminals on the adjacent wiring steps.

The side-mounted outgoing line module of the load break switch is detachably connected with the switch body, and different side-mounted outgoing line modules can be replaced according to needs so as to meet the wiring requirements of connecting different wires.

In addition, the side outgoing line base of the side-mounted outgoing line module and the switch body are inserted and positioned in a matched mode through the dovetail groove and the limiting guide convex rib, meanwhile, the first outgoing line lug of the outgoing line busbar is assembled, assembly is convenient, installation and fixation are conducted through screws penetrating through the side outgoing line base, and connection is reliable.

In addition, be equipped with a plurality of second protection casings, be used for covering respectively and install the binding post on a plurality of wiring steps, the second protection casing is connected with the rotation of lower dress line module, use scheme.

In addition, the side wire outlet base is arranged on the side wire outlet base, so that the wire is limited in the conductor limiting groove, the left and right offset of the wire is controlled, and the second protective cover can be smoothly closed.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the assembly of the load circuit switch and the lower mount outlet module of the present invention;

FIG. 2 is a schematic diagram of the overall structure of the assembly of the load circuit switch and the side mount outlet module of the present invention;

FIGS. 3-4 are schematic structural views of the switch body of the present invention;

FIG. 5 is a schematic structural diagram of a lower mount line module;

FIG. 6 is a partial schematic view of a connection structure of a lower mount outlet module and the bottom side of a switch body;

FIG. 7 is a partial schematic view of a connection structure of a connection end of a lower mount line module and a switch body;

FIG. 8 is a partial view of a connection structure of a lower mount line module and a switch body at another angle;

FIG. 9 is an assembled partial schematic view of the protective cover of the lower drop-out line module;

FIG. 10 is an assembled cross-sectional view of the protective cover of the lower drop-out line module;

FIG. 11 is an assembly schematic of the lower mount outlet module with the base portion of the switch body;

FIG. 12 is a top view of the lower loaded line module and base portion of the switch body;

FIG. 13 is a schematic structural view of the outlet busbar and the inlet busbar mounted in the base portion in cooperation with the lower outlet module;

FIG. 14 is a schematic structural view of a side-mount line module;

FIG. 15 is a schematic view of a connection structure of a side-mounted line module and a switch body;

FIG. 16 is a schematic view of another connection structure of the side-mounted line module and the switch body;

fig. 17 is a schematic view of a connection structure of a side-mounted outlet module and the bottom side of the switch body;

FIG. 18 is one embodiment of a side-mounted line module with wire connections, one wire per connection;

FIG. 19 is another embodiment of a side-mounted line module with wire connections, two wires per connection;

FIG. 20 is a third embodiment of a side-mount line module with wire connections, two wires per connection;

fig. 21 is an assembly schematic of a side-mounted wire module with a base portion of a switch body.

Detailed Description

The following embodiments are provided in connection with the accompanying drawings to further illustrate the embodiments of the load circuit switch of the present invention. The load circuit switch of the present invention is not limited to the description of the following embodiments.

As shown in fig. 1 to 4, the load circuit switch of the present embodiment includes a switch body 1 and an outlet module 6 detachably connected to the switch body 1.

The switch body 1 comprises a body shell 10, an operating mechanism 2 and at least one phase circuit, wherein the operating mechanism 2 and the at least one phase circuit are arranged in the body shell 10, the phase circuit comprises an incoming busbar 34, an outgoing busbar 33, a contact system 3 and a fuse 4 which are connected in series, the contact system 3 and the fuse are connected in series between the incoming busbar 34 and the outgoing busbar 33, the contact system 3 comprises a moving contact assembly 31 and a fixed contact 30 which are matched for use, a handle 20 is connected with the operating mechanism 2, and the operating mechanism 2 is connected with the moving contact assembly 31; the operating mechanism 2 is connected with the moving contact component 31, the toggle handle 20 drives the moving contact component 31 to reciprocate through the operating mechanism, the moving contact component 31 is contacted with and separated from the static contact 30, the closing and the breaking of a circuit are realized, the fuse 4 is fused when the circuit is subjected to conditions such as current overload or short circuit, and the like, and the circuit protection is realized.

The outgoing line module 6 is provided with a wiring terminal connected with the outgoing line busbar 33. One improvement point of the invention is that the load break switch is provided with an independent wire outlet module 6 which is detachably assembled, the wire outlet module 6 is detachably connected with the switch body 1, and different wire outlet modules 6 are adopted to connect different wires. The outgoing line module 6 and the switch body 1 can be connected through screws or buckles and the like.

One improvement point of the invention is that the switch body 1 of the invention simultaneously supports the installation of the outgoing line module 6 at one end of the switch body 1 or at one side of the switch body 1, and the switch body 1 can be assembled with different outgoing line modules 6 as required to form load break switches with different wiring directions. In one embodiment shown in fig. 1, the outlet module 6 is a lower outlet module 61, and is installed at an end of the switch body 1 away from the operating mechanism 2. In another embodiment shown in fig. 2, the outlet module 6 is a side-mounted outlet module 62, and the side-mounted outlet module 62 is mounted on a side surface of the switch body 1 and is arranged side by side with the switch body 1. The loadbreak switch dimensions of the two embodiments differ in length and width to provide the user with different wiring schemes to accommodate different systems.

One end of the body shell 10, which is far away from the operating mechanism 2, is provided with a first wire outlet hole 161 for extending the wire outlet busbar 33, one side of the body shell 10 is provided with a second wire outlet hole 162 for extending the wire outlet busbar 33, and the assembly of the lower-mounted wire outlet module 61 and the side-mounted wire outlet module 62 can be supported simultaneously, so that different wiring requirements of users can be met. The outgoing line module 6 is installed at one end, far away from the operating mechanism 2, of the switch body 1, the outgoing line busbar 33 extends out of the first outgoing line hole 161 to be connected with the wiring terminal in the outgoing line module 6, or the outgoing line module 6 is installed on the side face of the switch body 1 and is arranged side by side with the switch body 1, and the outgoing line busbar 33 extends out of the second outgoing line hole 162 to be connected with the wiring terminal in the outgoing line module 6.

Preferably, the second wire outlet holes 162 are formed at both sides of the body housing 10, so that a user can selectively install the side-installed wire outlet module 62 at any side of the switch body 1 as required.

Preferably, the body housing 10 is provided with a detachable outlet hole baffle for shielding the first outlet hole 161 and the second outlet hole 162, the outlet hole baffle shields an unused outlet hole, and a user can detach the corresponding outlet hole baffle when using the first outlet hole 161 or the second outlet hole 162. The wire outlet hole baffle is clamped with the body shell 10, or the wire outlet hole baffle and the body shell 10 are integrally formed, but are easy to remove, for example, a wire slot is arranged for removal.

Preferably, as shown in fig. 1-2, the body housing 10 includes a base portion 12 and a main portion 11 mounted on the base portion 12, the main portion 11 is used for accommodating the operating mechanism 2 and the contact system 3 and the fuse 4 of the phase circuit, and the base portion 12 is used for mounting the incoming busbar 34 and the outgoing busbar 33; one end of the base portion 12 is provided with the first outlet hole 161, and one side of the base portion 12 is provided with the second outlet hole 162, or two sides of the base portion 12 are provided with the second outlet hole 162. Of course, the first outlet hole 161 and the second outlet hole 162 may be provided on the main body portion 11 as other embodiments.

As shown in fig. 3-4, the load circuit switch includes a plurality of phase circuits, each phase circuit includes two groups of contact systems 3 and a fuse 4 connected in series between the two groups of contact systems 3, each group of contact systems 3 includes two fixed contacts 30 and at least one movable contact assembly 31, and two ends of the movable contact assembly 31 are respectively matched with the two fixed contacts 30. The body housing 10 has a rectangular structure, the width of the body housing 10 is smaller than the height of the body housing 10, and the height of the body housing 10 is smaller than the length of the body housing 10. The operating mechanism 2 is disposed at one end in the main body portion 11, and a handle 20 is connected to the operating mechanism 2, the handle 20 protruding from the top side of the body case 10 corresponding to the operating mechanism 2.

The plurality of phase circuits are sequentially arranged in the main body part 11 along the length direction of the body shell 10, two groups of contact systems 3 of each phase circuit are arranged at intervals along the length direction of the body shell 10, two static contacts 30 of each group of contact systems 3 are arranged at intervals up and down along the height direction of the body shell 10, two ends of the corresponding movable contact assemblies 31 are respectively matched with the two fixed contacts 30, the corresponding fuses 4 are arranged above the two groups of contact systems 3 and close to the top side of the body shell 10, the two ends of the fuse 4 are respectively and electrically connected with the static contact 30 positioned above the two groups of contact systems 3, the static contact positioned below the two groups of contact systems 3 is respectively connected with the corresponding incoming busbar 34 and outgoing busbar 33, the incoming busbar 34 and the outgoing busbar 33 are arranged at the bottom side of the body shell 10, and the incoming busbar 34 and the outgoing busbar 33 are respectively used for connecting incoming conductors and outgoing conductors.

The load circuit switch of the present embodiment comprises three phase circuits, each phase circuit comprising two sets of contact systems 3 and a fuse 4 connected in series between the two sets of contact systems 3. It should be noted that, obviously, one phase circuit or a plurality of phase circuits may also be provided according to needs; each phase circuit can also be provided with more groups of contact systems 3, so that the load break switch is suitable for breaking higher current and higher voltage, and each phase circuit of the embodiment is preferably provided with two groups of contact systems 3, and a fuse 4 is connected in series between the two groups of contact systems 3; each group of contact systems 3 in this embodiment includes two fixed contacts 30 arranged at intervals and two moving contact assemblies 31 arranged side by side at intervals, each fixed contact 30 includes two fixed contact plates 301 respectively matched with one ends of the two moving contact assemblies 31, one ends of the two moving contact assemblies 31 are respectively matched with the two fixed contact plates 301 of one fixed contact 30, and the other ends of the two moving contact assemblies 31 are respectively matched with the fixed contact plates 301 of the other fixed contact 30. It is obvious that each set of contact system 3 may comprise only one movable contact assembly 31 and one stationary contact 30 may comprise only one stationary contact plate 301. The operating mechanism 2 can adopt an energy storage type operating mechanism, an energy storage spring is compressed in the earlier stage of the swinging of the handle 20, and the energy storage spring releases energy to drive the movable contact assembly 31 to be quickly closed after the handle passes a dead point, but the operating mechanism 2 can also adopt a four-bar structure without energy storage.

The load short-circuit switch further comprises a push plate 5, the movable contact assembly 31 is mounted on the push plate 5, the push plate 5 is connected with the operating mechanism 2 and is in linear sliding fit with the body shell 10, the fixed contact 30 is fixedly mounted in the body shell 10, and the operating mechanism 2 drives the push plate 5 to horizontally slide in a reciprocating mode along the length direction of the body shell 10, so that the movable contact assembly 31 is in contact with and separated from the fixed contact 30. In this embodiment, the push plate 5 is matched with the body shell 10 through the first guiding limiting structure, the first guiding limiting structure comprises a rolling device and a rolling rail which are matched for use, and through the matching of the rolling device and the rolling rail, the motion friction of the push plate can be changed from plane friction into rolling friction, so that the friction force of the push plate in the motion process is greatly reduced, the closing and opening speed is increased, the contact performance is improved, and the applicable voltage level can be improved.

As shown in fig. 3 to 4, the rolling device includes a rolling bearing 51, bearing mounting shafts for mounting the rolling bearing 51 are respectively provided on both sides of the push plate 5, the body housing 10 further includes a rolling rail 52 engaged with the rolling bearing 51, and the push plate 5 and the operating mechanism 2 are combined together by the first connecting shaft 52.

As shown in fig. 13 and 21, the incoming busbar 34 and the outgoing busbar 33 of the multiple phase circuits are sequentially arranged in the base portion 12 along the length direction of the switch body 1.

The outgoing busbar 33 comprises a first outgoing line lug 331 and a second outgoing line lug 332 which are positioned at two ends, and an outgoing line connecting piece 333 connected between the first outgoing line lug 331 and the second outgoing line lug 332, the second outgoing line lug 332 is used for being connected with the static contact 31, and the first outgoing line lug 331 is used for being connected with a connecting terminal in the outgoing line module 6. The first outgoing line lug 331 is provided with a first outgoing line wiring hole 3311 and a first outgoing line assembling hole 3312, and the first outgoing line wiring hole 3311 is arranged at the center of the first outgoing line lug 331 and used for being matched with a wiring screw. The outlet busbar 33 in fig. 13 is a preferred embodiment of a lower outlet busbar, and is used for matching with the embodiment of the lower outlet module 61, and three lower outlet busbars of a three-phase circuit are arranged in the base part 12; a preferred side outlet busbar embodiment of figure 21 is used in conjunction with the side load outlet module 62 embodiment.

The incoming busbar 34 includes a first incoming wiring lug 341 and a second incoming wiring lug 342 located at two ends, and an incoming wiring connecting piece 343 connected between the first incoming wiring lug 341 and the second incoming wiring lug 342, the second incoming wiring lug 342 is used for being connected with the static contact 31, the first incoming wiring lug 341 is arranged at the bottom of the base part 12, and the base part 12 is provided with an incoming hole 127 corresponding to the first incoming wiring lug 341. In this embodiment, the structure of the incoming busbar 34 used for the lower-mounted outgoing module 61 is the same as that of the incoming busbar 34 used for the side-mounted outgoing module 62, and the first incoming tab 341, the second incoming tab 342, and the incoming tab 343 are in a Z shape.

Another preferred improvement point of this embodiment is that the base portion 12 can be used to mount two different outgoing line busbars, and the two different outgoing line busbars are respectively used to be matched with the lower outgoing line module 61 and the side outgoing line module 62, so that different outgoing line busbars are assembled according to requirements, and the base portion has high adaptability and greatly reduces the cost. The outlet busbar 33 in the base part 12 is a lower outlet busbar, the outlet module 6 is a lower-mounted outlet module 61 mounted at one end of the switch body 1 far away from the operating mechanism 2, and the lower outlet busbar extends out of the first outlet hole 161 into the lower-mounted outlet module 61; or, the outlet busbar 33 in the base portion 12 is a side outlet busbar, the outlet module 6 is a side-mounted outlet module 62 installed on the side surface of the switch body 1, and the side outlet busbar extends out of the second outlet hole 162 into the side-mounted outlet module 62

As shown in fig. 11 and 21, one end of the base portion 12 is provided with the first outlet hole 161, and at least one side of the base portion 12 is provided with the second outlet hole 162, and the bottom side of the base portion 12 is provided with the wire inlet hole 127; the top side of the base part 12 is provided with a plurality of first lug installation grooves 124 and a plurality of second lug installation grooves 123, the first lug installation grooves 124 and the second lug installation grooves 123 are alternately arranged along the length direction of the base part 12, the first lug installation grooves 124 are used for installing second incoming lugs 342 of the incoming busbar 34, and the second lug installation grooves 123 are used for installing second outgoing lugs 332 of the outgoing busbar 33;

a wire passing hole 125 is formed in the first lug mounting groove 124, the wire passing hole 125 is communicated with a wire inlet hole 127 at the bottom side of the base part 12, and a first wire inlet lug 341 of the wire inlet busbar 34 extends out of the wire passing hole 125 to a position corresponding to the wire inlet hole 127; the second tab mounting groove 123 is disposed corresponding to and communicated with the second wire outlet 162, and a wire passing gap 126 disposed along the length direction of the base portion 12 is disposed between at least one second tab mounting groove 123 and one side wall of the base portion 12, and the wire passing gap 126 is communicated with the second tab mounting groove 123 and the first wire outlet 161. The base portion 12 of this embodiment is correspondingly disposed and communicated with the second wire outlet hole 162 through the second tab mounting groove 123, the second tab mounting groove 123 is communicated with the first wire outlet hole 161 through the wire passing gap 126, the wire passing gap 126 is communicated with the second tab mounting groove 123 and the first wire outlet hole 161, the wire outlet connecting sheet 333 of the wire outlet bus bar 33 is mounted in the wire passing gap 126, so that the first wire outlet tab 331 extends out of the first wire outlet hole 161, and the base portion can be adapted to two different wire outlet bus bars 33.

The base part 12 of the embodiment is used for installing the outgoing busbar 33 and the incoming busbar of the three-phase circuit. Base portion 12 includes three first lug mounting groove 124 and three second lug mounting groove 123 that set up in turn, a side wall of base portion 12 is equipped with three second wire outlet 162, three second wire outlet 162 corresponds with three second lug mounting groove 123 respectively and sets up and UNICOM, the one end of base portion 12 is equipped with first wire outlet 161, two second lug mounting grooves 123 of keeping away from first wire outlet 161 in three second lug mounting groove 123, be equipped with between one and the lateral wall of base portion 12 along base portion 12 length direction setting cross line clearance 126, another and be equipped with another cross line clearance 126 along base portion 12 length direction setting between another and the another lateral wall of base portion 12. As shown in fig. 11-13, the outgoing bus bars 33 are three lower outgoing bus bars, wherein the planes of the outgoing connecting sheets 333 of the two lower outgoing bus bars are parallel to the side walls of the two sides of the base portion 12, and are used for matching with the threading gaps 126; the plane of the outgoing line connecting sheet 333 of one of the lower outgoing line busbars is perpendicular to the side walls of the two sides of the base part 12, extends out of the first outgoing line hole 161 and then extends to the top side of the switch body 1, and is arranged in the routing gap 6116 between the switch body 1 and the lower outgoing line module 61. As shown in fig. 21, the outlet busbars 33 are three side outlet busbars, one of the side outlet busbars is in a straight shape, and two of the side outlet busbars are in a Z shape.

As shown in fig. 1 and 5, in an embodiment of the outgoing line module 6, the outgoing line module 6 is a lower-mounted outgoing line module 61, the load break switch of this embodiment includes a switch body 1 and the lower-mounted outgoing line module 61 detachably connected to the switch body 1, the lower-mounted outgoing line module 61 includes a lower outgoing line base 610 and a wiring terminal installed on the lower outgoing line base 610, the lower outgoing line base 610 is installed at one end of the switch body 1 far away from the operating mechanism 2, the outgoing line busbar 33 is connected to the wiring terminal, and different lower-mounted outgoing line modules can be replaced as required to meet wiring requirements for connecting different wires.

The lower wire-outgoing module 61 includes a lower wire-outgoing base 610, a plurality of wire terminals, a phase-separating plate 615, and a shield 613. One end of the lower outlet base 610 is a connection end 611 for connecting with one end of the body housing 10, and the other end is a terminal 612, and the terminal 612 is in a multi-stage step shape and comprises a plurality of sequentially connected wiring steps for connecting with an external wire. The top surface of each level of wiring step of the wiring terminal 612 is a wiring top surface 6121, a wiring terminal is installed on the wiring top surface 6121, a first incoming line lug 341 of the incoming line busbar 34 is connected with the wiring terminal, and the wiring terminal is used for being connected with an external lead. The phase partition plate 615 is installed between adjacent connection terminals to partition the adjacent connection terminals, and the protective cover 613 covers the lower outlet base 610 to cover the plurality of connection terminals on the lower outlet base 610.

As shown in fig. 6, a base fixing plate 6111 is convexly disposed at the bottom side of the connecting end 611 of the lower outlet base 610, a first fixing hole 6112 is disposed on the outlet base fixing plate 6111, a fixing plate slot for accommodating the outlet base fixing plate 6111 is disposed at one end of the bottom side of the base portion 12 close to the first outlet hole 161, a second fixing hole is correspondingly disposed in the fixing plate slot, the base fixing plate 6111 extends to the bottom side of the base portion 12 during assembly, and the lower outlet base 610 is fixedly connected to the base portion 12 through the first fixing hole 6112 and the second fixing hole by a first fixing screw. The second fixing hole is a screw hole, or a nut is embedded in the second fixing hole.

As shown in fig. 5 and 7, the side walls of the two sides of the lower outlet base 610 close to the connection end 611 are provided with third fixing holes 6113, nuts are embedded in the third fixing holes 6113, two base fixing convex ribs 113 arranged at intervals are convexly arranged on the side wall of one end of the main body portion 11 far away from the operating mechanism 2, a fourth fixing hole 1130 is arranged on the base fixing convex rib 113, the connection end 611 of the lower outlet base 610 is limited between the two outlet base fixing convex ribs 6114, and a second fixing screw fixedly connects the lower outlet base 610 with the main body portion 11 through the third fixing holes 6113 and the fourth fixing hole 1130.

Preferably, two first positioning protruding ribs 6115 arranged at intervals are convexly arranged on the side wall of the connecting end 611 of the lower outlet base 610, the first positioning protruding ribs 6115 are abutted and matched with the side wall of one end, away from the operating mechanism 2, of the main body part 11, so that the positions of the third fixing hole 6113 and the fourth fixing hole 1130 are conveniently positioned, and a routing gap 6116 used for penetrating through the outlet bus bar 33 is formed between the main body part 11 and the connecting end 611 of the lower outlet base 610.

The lower outlet base 610 of the present embodiment is simply and reliably assembled with the switch body 1. Of course, the lower outlet base 610 and the switch body 1 may be fixed in other manners.

As shown in fig. 5 and 8, the connection terminal of the present embodiment includes a binding screw 604, and a binding bar of the binding screw 604 is vertically disposed on a binding top surface 6121 for connecting a binding plate conductor having a round hole lug at an end thereof. A first outgoing line wiring hole 3311 and a first outgoing line assembling hole 3312 which are matched with the wiring rod of the wiring screw 604 are arranged on the first outgoing line lug 331 of the outgoing line busbar 33, the first outgoing line wiring hole 3311 penetrates through the wiring rod of the wiring screw 604, and the first outgoing line lug 331 is installed on the wiring top surface 6121; a second outlet screw hole 6122 is further formed in the wiring top surface 6121, and the first outlet lug 331 and the lower outlet base 610 are fixed by the first outlet screw 3313 through the first outlet assembling hole 3312 and the second outlet screw hole 6122 from the bottom side of the lower outlet base 610. The first outlet screw 3313 may be fixed to the nut, or the outlet fitting hole may be a threaded hole. The binding screw 604 includes the hexagonal screw cap of binding post and binding post one end, and the screw cap is the hexagon, be equipped with the screw mounting groove on the wiring top surface 6121, the screw mounting groove is the hexagon, and the screw cap of binding screw 604 is installed in the screw mounting groove of wiring top surface 6121, the first binding post pressure that the first binding post 3311 of being qualified for the next round of competitions of lug 331 passes binding screw 604 is on the screw cap, fixed binding screw 604.

Obviously, other types of terminals can be provided as required to connect different types of wires, such as terminals for connecting busbars, terminals for connecting conventional wires, etc. For example, the connection terminal may include a frame-shaped connection base into which the first wire outlet connection hole 3311 is inserted and connected, and a connection screw installed on the connection base and having a screw hole for pressing the external wire by screwing the connection screw.

The lower-mounted wire outlet module 61 of this embodiment is used for being connected with a wire outlet busbar 33 of a three-phase circuit, that is, is used for being connected with three wire outlet busbars 33, the lower wire outlet base 610 is provided with three-level wiring steps, a first wire outlet lug 331 of a first wire outlet busbar 33 extends to a wiring top surface 6121 of a first-level wiring step from one side of the lower wire outlet base 610, a first wire outlet lug 331 of a second wire outlet busbar 33 extends to a wiring top surface 6121 of a second-level wiring step from the other side of the lower wire outlet base 610, and a first wire outlet lug 331 of a third wire outlet busbar 33 extends to a wiring top surface 6121 of a highest third-level wiring step from a connecting end 611. The wire inlet mode of the wire outlet busbar 33 of the embodiment is compact in structure, and the required size of the lower wire outlet base 610 is the minimum. Of course, other wire feeding modes can be adopted, for example, a plurality of wire outlet bus bars 33 respectively extend from the connecting end 611 to the wiring top surfaces 6121 of the plurality of wiring steps through different heights, and a through hole is formed in one side of the connecting end 611 of the lower wire outlet base 610.

As shown in fig. 5 and 8, one end of the phase spacer 615 is provided with a positioning hole 6152 for the phase spacer, the bottom of the other end is provided with a fixing convex rib 6151 for the phase spacer, the wiring top surface 6121 is provided with a positioning convex rib 6123 for the phase spacer and a fixing groove 6124 for the phase spacer, one end of the phase spacer 615 is mounted on the wiring top surface 6121, the fixing convex rib 6151 for the phase spacer is embedded into the fixing groove 6124 for the phase spacer, the positioning hole 6152 for the phase spacer is sleeved on the positioning convex rib 6123 for the phase spacer, the first outlet tab 331 of the outlet bus bar 33 is pressed on one end of the phase spacer 615, the phase spacer 615 is fixed, and the assembly method is simple and convenient.

As shown in fig. 1, 9-10, the shield 613 is in an inverted U shape and is fastened to the lower outlet base 610. The two sides of one end of the body shell 10, which is far away from the operating mechanism 2, are provided with protective cover fixing convex hulls 6101, the protective cover fixing convex hulls 6101 are arranged on two sides of the main body part 11 or two sides of the lower wire outlet base 610, the inner side wall of the protective cover 613 is provided with an elastic arm group 6131 formed by a plurality of elastic arms which are linearly arranged from top to bottom, the protective cover 613 is inserted into the lower wire outlet base 610 from the top, and the protective cover 613 is fixed by the cooperation of the fixing convex hulls 6101 and the elastic arm group 6131. The shield fixing boss 6101 of the present embodiment is provided on the base fixing rib 113 of the main body portion 11. The top side of one end of the main body 11, which is far away from the operating mechanism 2, is provided with a protective cover clamping table 1132, and the side edge of the top side of the protective cover 613, which is close to the connecting end 611 of the lower outgoing line base 610, is provided with a protective cover elastic buckle 6132 in a bending manner, so as to be matched with the protective cover clamping table 1132 (see fig. 2) of the main body 11. When the user needs to detach the protection cover 613, the protection cover elastic buckle 6132 of the protection cover 613 can be pulled open to unlock the protection cover chuck 1132, and then the plastic deformation force of the elastic arm group 6131 is overcome to detach the protection cover 613.

As shown in fig. 2 and 14-15, in another embodiment of the outgoing line module 6, the outgoing line module 6 is a side-mounted outgoing line module 62, the side-mounted outgoing line module 62 includes a side outgoing line base 620 and a connection terminal installed on the side outgoing line base 620, the side-mounted outgoing line module 62 is installed on a side surface of the switch body 1 and is arranged side by side with the switch body 1, the outgoing line busbar 33 is connected with the connection terminal, and different side-mounted outgoing line modules 62 can be replaced as required to meet the wiring requirements for connecting different wires.

The side mount outlet module 62 of this embodiment includes a side outlet base 620, a plurality of connection terminals, and a plurality of second shields 623. One end of the side-mounted wire outlet module 62 is a second wire terminal 622, the other end is a sealing end 621, the second wire terminal 622 is in a multi-stage step shape and comprises a plurality of sequentially connected wire connecting steps, the top surface of each wire connecting step is a second wire connecting top surface 6221, and a wire connecting terminal is mounted on each second wire connecting top surface 6221 and used for connecting an external lead; the side face of the side outgoing line base 620 connected with the body shell 10 is a line incoming side face 624, a first outgoing line lug 331 of the outgoing line busbar 33 extends from the line incoming side face 624 to the side outgoing line base 620, the first outgoing line lug 331 of the outgoing line busbar 33 is connected with a wiring terminal, and the wiring terminal is used for being connected with an external lead.

As shown in fig. 14 and 16, the side wire outlet base 620 is provided with a fifth fixing hole 6201 penetrating through the side wire outlet base 620 from two sides, the body housing 10 is provided with a sixth fixing hole penetrating through the body housing 10 from two sides, and the third fixing screw fixedly connects the side wire outlet module 62 with the body housing 10 through the fifth fixing hole 6201 and the sixth fixing hole. The sixth fixing holes are formed in the base portion 12 and/or the main body portion 11, penetrate through two sides of the body shell 10, and are fixed through cooperation of third fixing screws and nuts, or threads, nuts and the like are arranged in the fifth fixing holes 6201, and besides screw connection, the sixth fixing holes can also be fixedly connected through buckles or other modes.

As shown in fig. 14 and 17, one side or both sides of the base portion 12 are provided with second wire outlet holes 162 for extending the wire outlet bus bars 33, and one side or both sides of the base portion 12 are provided with dovetail grooves 6202, the dovetail grooves 6202 extend to the bottom side of the base portion 12, the wire inlet side surface 624 of the side wire outlet base 620 is provided with limit guide ribs 6241 matching with the dovetail grooves 6202, the limit guide ribs 6241 are inserted into the dovetail grooves 6202 from the bottom side of the base portion 12, and the side wire outlet base 620 is fixedly mounted on the base portion 12 through the limit guide ribs 6241 and the dovetail grooves 6202 in a matching manner. Preferably, the dovetail groove 6202 is arranged corresponding to the second wire outlet hole 162, so that when the side wire outlet base 620 is installed, the first wire outlet wiring hole 3311 of the first wire outlet tab 331 of the wire outlet busbar 33 corresponds to the wiring screw 604. One or more dovetail grooves 6202 may be provided, and the dovetail grooves 6202 may also be provided on the main body portion 11, or the limiting guide ribs 6241 may be provided on the body housing 10, and the dovetail grooves 6202 may be provided on the side outlet base 620.

As shown in fig. 14 to 15 and 17, the connection terminal of the present embodiment includes a binding screw 604, and a binding post of the binding screw 604 is vertically disposed on the second binding top face 6221. Be equipped with the screw mounting groove on second wiring top surface 6221, the screw mounting groove is the hexagon, binding screw 604 includes the hexagonal screw cap of binding post and binding post one end, and the screw cap of binding screw 604 is installed in the screw mounting groove of second wiring top surface 6221. The first outgoing line lug 331 of the outgoing line busbar 33 is mounted on the second wiring top surface 6221, the first outgoing line lug 331 is provided with a first outgoing line wiring hole 3311 and a first outgoing line assembling hole 3312, the first outgoing line wiring hole 3311 of the first outgoing line lug 331 penetrates through a wiring rod of the wiring screw 604 and is pressed on a screw cap, and the wiring screw 604 is fixed; a third wire outlet screw hole 6222 is further formed in the second wiring top surface 6221, and the second wire outlet screw fixes the first wire outlet tab 331 and the side wire outlet base 620 from the bottom side of the side wire outlet base 620 through the third wire outlet screw hole 6222 and the first wire outlet assembling hole 3312.

As shown in fig. 14 to 15, the plurality of second shields 623 are respectively used to shield the connection terminals mounted on the plurality of connection steps, and each second shield 623 corresponds to one connection step. Of course, as an alternative embodiment, a protective hood may cover all terminals at the same time. In this embodiment, the second protection cover 623 is rotatably mounted on the corresponding connection step, the second protection cover 623 is in an inverted U shape, a notch 6235 for avoiding the outgoing line busbar 33 is formed in a side wall of the second protection cover 623, a protection cover rotation hole 6231 is formed in one end of each of two side walls of the second protection cover 623, a protection cover rotation shaft 6025 is arranged on the connection step, the second protection cover is buckled on the side outgoing line base 620 through plastic deformation of the second protection cover, and the second protection cover can rotate around the protection cover rotation shaft 6025 of the side outgoing line base.

As shown in fig. 14, preferably, a conductor limiting groove 6223 corresponding to the connection terminal is disposed at one end of the second connection top surface 6221 close to the second connection terminal 622 of the side wire-out base 620, and is used for limiting the action of the conductor, when a user connects a wire, the conductor may shift left and right due to left and right torque, and when the shift amount is too large, the second protection cover 623 may not be closed, and the conductor limiting groove 6223 is disposed on the side wire-out base 620, so that the conductor is limited in the conductor limiting groove 6223, that is, the left and right shift amount of the conductor is controlled, and the second protection cover 623 may be smoothly closed. The conductor limiting groove 6223 is disposed on a boss of the second wiring top surface 6221 and is integrally formed with the side wiring base 620, and the conductor limiting groove 6223 may be an elastic clamping arm or other structure.

As shown in fig. 18, the side-mount line module 62 of the present embodiment connects one wire per wiring step. Preferably, if each phase of the product needs to connect two wires or a plurality of wires, the side outgoing line base 620 and the outgoing line busbar can be properly widened, each wiring step is arranged side by side along the width direction of the side outgoing line base 620 and connected with a plurality of wiring terminals, and the plurality of wiring terminals are connected with the first outgoing line lug 331 of the same outgoing line busbar 33. As shown in fig. 19, two binding screws are provided side by side in the width direction of the side outlet base 620 to achieve side-by-side coupling of two wires. As another embodiment, a step-type wiring scheme may be further provided, where each wiring step is provided with a wiring terminal, and the first outgoing line tab 331 of the outgoing line busbar 33 is simultaneously connected to a plurality of wiring terminals on a plurality of adjacent wiring steps. As shown in fig. 20, the first outgoing line tab 331 of the outgoing line busbar 33 is Z-shaped and is mounted on two adjacent wiring steps, and each of the two wiring steps is provided with a wiring screw for connecting two wires. It is obvious that the two-wire per-phase connection scheme of the two embodiments can also be used for the lower loading line module 61.

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.

Claims (11)

1. A load break switch, characterized by: the side-mounted outgoing line module (62) detachably connected with the switch body (1) comprises the switch body (1), wherein the switch body (1) comprises a body shell (10), an operating mechanism (2) and at least one phase circuit, the operating mechanism is arranged in the body shell (10), the phase circuit comprises an incoming line busbar (34), an outgoing line busbar (33), a contact system (3) and a fuse (4) which are connected in series, the contact system (3) and the fuse are connected in series between the incoming line busbar (34) and the outgoing line busbar (33), the contact system (3) comprises a movable contact component (31) and a fixed contact (30) which are used in a matched mode, and the operating mechanism (2) is connected with the movable contact component (31);

the side-mounted outgoing line module (62) comprises a side outgoing line base (620) and a wiring terminal installed on the side outgoing line base (620), the side-mounted outgoing line module (62) is installed on the side face of the switch body (1) and arranged side by side with the switch body (1), and the outgoing line busbar (33) is connected with the wiring terminal.

2. The load break switch of claim 1, wherein:

one end of the side-mounted wire outlet module (62) is a second wire terminal (622), the second wire terminal (622) is in a multi-stage step shape and comprises a plurality of sequentially connected wire connecting steps, the top surface of each wire connecting step is a second wire connecting top surface (6221), and a wire connecting terminal is mounted on each second wire connecting top surface (6221); the side that side outgoing line base (620) and body casing (10) are connected is inlet wire side (624), the first lug (331) of being qualified for the next round of competitions of female arranging (33) extends to side outgoing line base (620) from inlet wire side (624), and the first lug (331) of being qualified for the next round of competitions female arranging (33) is connected with binding post.

3. The load break switch of claim 1, wherein: the side outlet base (620) is provided with a fifth fixing hole (6201) penetrating through the side outlet base (620) from two sides, a sixth fixing hole is formed in the body shell (10), and a third fixing screw fixedly connects the side-mounted outlet module (62) with the body shell (10) through the fifth fixing hole (6201) and the sixth fixing hole.

4. The load break switch of claim 1, wherein: the body shell (10) comprises a base part (12) and a main body part (11) installed on the base part (12), the main body part (11) is used for accommodating an operating mechanism (2) and a contact system (3) and a fuse (4) of the phase circuit, and the base part (12) is used for installing the incoming busbar (34) and the outgoing busbar (33); one side or two sides of the base part (12) are provided with second wire outlet holes (162) for extending the wire outlet bus bars (33).

5. The load break switch of claim 4, wherein: one side or two sides of the base part (12) are provided with dovetail grooves (6202), the dovetail grooves (6202) extend to the bottom side of the base part (12), and the wire inlet side surface (624) of the side wire outlet base (620) is provided with a limiting guide convex rib (6241) matched with the dovetail grooves (6202).

6. The load break switch of claim 2, wherein: the wiring terminal comprises a wiring screw (604), and a wiring rod of the wiring screw (604) is vertically arranged on the second wiring top surface (6221).

7. The load break switch of claim 6, wherein: the wiring screw (604) comprises a wiring rod and a screw cap at one end of the wiring rod, a screw mounting groove is formed in the second wiring top surface (6221), the screw cap of the wiring screw (604) is mounted in the screw mounting groove of the second wiring top surface (6221), the outgoing line busbar (33) comprises a first outgoing line lug (331) connected with the wiring terminal, a first outgoing line wiring hole (3311) and a first outgoing line assembly hole (3312) are formed in the first outgoing line lug (331), and the first outgoing line wiring hole (3311) of the first outgoing line lug (331) penetrates through the wiring rod of the wiring screw (604) and is pressed on the screw cap to fix the wiring screw (604); and a third wire outlet screw hole (6222) is further formed in the second wiring top surface (6221), and the second wire outlet screw fixes the first wire outlet lug (331) and the side wire outlet base (620) through the third wire outlet screw hole (6222) and the first wire outlet assembly hole (3312) from the bottom side of the side wire outlet base (620).

8. The load break switch of claim 2, wherein: includes a plurality of second shield caps (623) for respectively covering the connection terminals mounted on the plurality of connection steps.

9. The load break switch of claim 8, wherein: the second protective cover (623) is rotatably mounted on the corresponding wiring step.

10. The load break switch of claim 2, wherein: and a conductor limiting groove (6223) corresponding to the wiring terminal is arranged at one end, close to the second wiring end (622) of the side wiring base (620), of the second wiring top surface (6221).

11. The load break switch of claim 2, wherein: a plurality of wiring terminals are arranged on each wiring step side by side along the width direction of the side wire outlet base (620), and the wiring terminals are connected with a first wire outlet lug (331) of the same wire outlet bus bar (33); or each wiring step is provided with one wiring terminal, and the first outgoing line lug (331) of the outgoing line busbar (33) is simultaneously connected with the wiring terminals on the adjacent wiring steps.

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