Shell structure of combined switch

Abstract

The shell structure of the combined switch comprises a shell, a ground wire terminal and a wiring terminal, and a first wire inlet connector is electrically connected with the wire inlet terminal and extends into the first mounting groove or is communicated with the first mounting groove; the first outgoing line connector is electrically connected with the outgoing line terminal and extends into the first mounting groove or is communicated with the first mounting groove; the second inlet wire connector is electrically connected with the inlet wire terminal and extends into the second mounting groove or is communicated with the second mounting groove; the second outlet wire connector extends into the second mounting groove or is communicated with the second mounting groove; the third wire inlet connector is electrically connected with the second wire outlet connector and extends into the third mounting groove or is communicated with the third mounting groove; and the third outgoing line connector is electrically connected with the ground wire terminal and extends into the third mounting groove or is communicated with the third mounting groove. The shell structure of the combined switch is used for plugging installation of the switch modules and electrical connection between the switch modules, and the connectors are preset in the shell, so that the switch modules are inserted into the shell to complete installation and electrical connection.

Description

TECHNICAL FIELD

[0001] The utility model relates to low voltage electrical apparatus field, concretely relates to a casing structure of combined switch. BACKGROUND

[0002] The grid-connected box includes electric energy meter, knife switch, photovoltaic special circuit breaker, surge protector, backup protection circuit breaker and leakage circuit breaker, and electrical connection is needed between these devices, and the prior art mainly connects the devices by bolt connection to meet the power supply requirement of the devices and lines. CONTENT OF THE UTILITY MODEL

[0003] The utility model discloses a casing structure of combined switch which overcomes at least one defect of the prior art.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] The casing structure of combined switch includes a casing, a ground terminal fixed in the casing and at least one group of wiring terminals, each group of wiring terminals includes an incoming terminal and an outgoing terminal, the casing is provided with a first mounting slot, a second mounting slot and a third mounting slot, the casing is provided with a first incoming plug-in connector, a first outgoing plug-in connector, a second incoming plug-in connector, a second outgoing plug-in connector, a third incoming plug-in connector and a third outgoing plug-in connector, the first incoming plug-in connector is electrically connected with the incoming terminal and extends into the first mounting slot or communicates with the first mounting slot, the first outgoing plug-in connector is electrically connected with the outgoing terminal and extends into the first mounting slot or communicates with the first mounting slot, the second incoming plug-in connector is electrically connected with the incoming terminal and extends into the second mounting slot or communicates with the second mounting slot, and the second outgoing plug-in connector extends into the second mounting slot or communicates with the second mounting slot, the third incoming plug-in connector is electrically connected with the second outgoing plug-in connector and extends into the third mounting slot or communicates with the third mounting slot, and the third outgoing plug-in connector is electrically connected with the ground terminal and extends into the third mounting slot or communicates with the third mounting slot.

[0006] Optionally, the casing is provided with a containing cavity for containing the first incoming plug-in connector, the first outgoing plug-in connector, the second incoming plug-in connector, the second outgoing plug-in connector, the third incoming plug-in connector and the third outgoing plug-in connector, the first mounting slot, the second mounting slot and the third mounting slot are located on one side of the containing cavity, and the first mounting slot, the second mounting slot, the third mounting slot and the containing cavity have a shared wall body therebetween.

[0007] Optionally, the shared wall body is provided with a first through hole and a second through hole penetrating through the shared wall body and respectively connecting the accommodating cavity and the first mounting slot; the first incoming line connector is a copper bar, and the first incoming line connector at least partially extends into the first mounting slot through the first through hole; the first outgoing line connector is a copper bar, and the first outgoing line connector at least partially extends into the first mounting slot through the second through hole.

[0008] Optionally, the shell is further provided with a first terminal cavity in communication with the accommodating cavity and corresponding to the incoming line terminal, and a second terminal cavity in communication with the accommodating cavity and corresponding to the outgoing line terminal, the first incoming line connector at least partially extends into the first terminal cavity and is directly connected with the incoming line terminal, and the first outgoing line connector at least partially extends into the second terminal cavity and is directly connected with the outgoing line terminal.

[0009] Optionally, the shared wall body is provided with at least two first limiting protrusions and at least two second limiting protrusions, the first incoming line connector is in a U-shaped structure, one side of the first incoming line connector extends into the first mounting slot, the other side of the first incoming line connector extends into the first terminal cavity, and the bottom of the first incoming line connector abuts against the shared wall body and is limited between the two first limiting protrusions.

[0010] The first outgoing line connector is in a U-shaped structure, one side of the first outgoing line connector extends into the first mounting slot, the other side of the first outgoing line connector extends into the second terminal cavity, and the bottom of the first outgoing line connector abuts against the shared wall body and is limited between the two second limiting protrusions.

[0011] Optionally, the incoming line terminal comprises a first wiring frame and a first wiring screw arranged on the first wiring frame, the first wiring frame is provided with a first connecting portion directly connected with the first incoming line connector in a direction away from the first wiring screw; the outgoing line terminal comprises a second wiring frame and a second wiring screw arranged on the second wiring frame, the second wiring frame is provided with a second connecting portion directly connected with the first outgoing line connector in a direction away from the second wiring screw.

[0012] Optionally, the shared wall body is provided with a third through hole and a fourth through hole penetrating through the shared wall body and respectively connecting the accommodating cavity and the second mounting slot; the second incoming line connector is a copper bar, and the second incoming line connector at least partially extends into the second mounting slot through the third through hole; the part of the second incoming line connector located in the accommodating cavity is electrically connected with the incoming line terminal; the second outgoing line connector is a copper bar, and the second outgoing line connector at least partially extends into the second mounting slot through the fourth through hole; the part of the second outgoing line connector located in the accommodating cavity is directly connected with the third incoming line connector.

[0013] Optionally, the second inlet connector has a first positioning hole on the part located in the accommodating cavity, the common wall body has a first positioning protrusion located in the accommodating cavity and matched with the first positioning hole, and the second inlet connector is located on the common wall body and sleeved on the first positioning protrusion through the first positioning hole.

[0014] Optionally, the second outlet connector has a second positioning hole on the part located in the accommodating cavity, the common wall body has at least two third limiting protrusions and a second positioning protrusion matched with the second positioning hole, and the second outlet connector is located on the common wall body and sleeved on the second positioning protrusion through the second positioning hole.

[0015] Optionally, the common wall body has a fifth through hole and a sixth through hole penetrating through and respectively connecting the accommodating cavity and the third mounting groove, the third inlet connector is a slot, the third inlet connector is arranged corresponding to the fifth through hole, the third outlet connector is a slot, and the third outlet connector is arranged corresponding to the sixth through hole.

[0016] Optionally, the third inlet connector is a resilient clamp structure, the third inlet connector has a wire inlet connecting portion extending away from the third outlet connector at an end away from the third inlet connector port, and the second outlet connector is at least partially laminated with the wire inlet connecting portion.

[0017] Optionally, the third outlet connector is a resilient clamp structure, the third outlet connector has a wire outlet connecting portion extending away from the third inlet connector at an end away from the third outlet connector port, and the wire outlet connecting portions of all the third outlet connectors are connected with the bus bar, and the bus bar is electrically connected with the ground terminal through the first flexible connection.

[0018] Optionally, the shell comprises a base and a pedestal, the pedestal has the first mounting groove, the second mounting groove and the third mounting groove on one side, and the base covers the other side of the pedestal to form the accommodating cavity.

[0019] Optionally, the shell further has a signal terminal, and the signal terminal is arranged opposite to the ground terminal.

[0020] Optionally, the second mounting groove and the third mounting groove are located on one side of the first mounting groove in the first direction, the second mounting groove and the third mounting groove are sequentially arranged along the second direction, the line-in terminal and the line-out terminal are oppositely arranged on both sides of the first mounting groove in the second direction, a plurality of the line-in terminals are arranged in a row along the first direction, a plurality of the line-out terminals are arranged in a row along the first direction, and the openings of the first mounting groove, the second mounting groove and the third mounting groove are all arranged towards the third direction, the first direction, the second direction and the third direction are perpendicular to each other.

[0021] Optionally, a plurality of first line-in connectors are arranged in a row along the first direction, a plurality of first line-out connectors are arranged in a row along the first direction, and the plurality of first line-in connectors and the plurality of first line-out connectors are oppositely spaced apart in the second direction.

[0022] A plurality of second line-in connectors are arranged in a row along the first direction, a plurality of second line-out connectors are arranged in a row along the first direction, and the plurality of second line-in connectors and the plurality of second line-out connectors are oppositely spaced apart in the second direction.

[0023] A plurality of third line-in connectors are arranged in a row along the first direction, a plurality of third line-out connectors are arranged in a row along the first direction, and the plurality of third line-in connectors and the plurality of third line-out connectors are oppositely spaced apart in the second direction.

[0024] The shell structure of the combined switch is used for plug-in installation of the switch modules and electrical connection between the switch modules, the first line-in connector, the first line-out connector, the second line-in connector, the second line-out connector, the third line-in connector and the third line-out connector are preset in the shell, installation and electrical connection of the switch modules are completed by being inserted into the shell, electrical connection of the switch modules is avoided, and only one wiring is needed for the combined switch through the wiring terminal, and the combined switch can be easily maintained by being plugged and disassembled.

[0025] In addition, the connector is arranged in the independent accommodating cavity, electrical safety is improved, maintenance of the connector is facilitated, and automatic installation is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a perspective view of the combined switch of the utility model from one angle;

[0027] Figure 2 is a perspective view of the combined switch of the utility model from another angle;

[0028] Figure 3 is a circuit diagram of the combined switch of the utility model;

[0029] Figure 4 is a structural schematic view of the combined switch of the utility model with the switch modules removed;

[0030] Figure 5 is an exploded view of the combined switch of the utility model;

[0031] Figure 6 is a structural schematic view of the combined switch of the utility model with the base removed from the back;

[0032] Figure 7 is a view of the line module and the terminal of the utility model;

[0033] Figure 8 is a perspective view of the line module and the terminal of the utility model;

[0034] Figure 9 is a structural schematic view of the combined switch when the first circuit breaker module is exploded;

[0035] Figure 10 is a structural schematic view of the combined switch when the second circuit breaker is exploded;

[0036] Figure 11 is a structural schematic view of the combined switch when the surge protection is exploded.

[0037] Housing 100; base 110; first mounting slot 111; second mounting slot 112; third mounting slot 113; common wall 114; first limiting protrusion 115; second limiting protrusion 116; first through hole 117; second through hole 118; third through hole 119; fourth through hole 120; fifth through hole 121; sixth through hole 122; first terminal cavity 123; second terminal cavity 124; first positioning protrusion 125; second positioning protrusion 126; third limiting protrusion 127; first guide protrusion 128; second guide protrusion 129; base plate 130; clamping rail slot 131; first circuit breaker module 210; first circuit breaking pole 211; control pole 212; first handle 213; first pulling mechanism 214; second circuit breaker module 220; second circuit breaking pole 221; first guide slot 222; second handle 223; second pulling mechanism 224; surge protector module 230; surge protection pole 231; second guide slot 232; indication window 233; third pulling mechanism 234; third incoming line row plug 235; third outgoing line row plug 236; incoming line terminal 310; first wiring frame 311; first wiring screw 312; first connecting part 313; outgoing line terminal 320; second wiring frame 321; second wiring screw 322; second connecting part 323; first incoming line connector 410; first outgoing line connector 420; second incoming line connector 430; first positioning hole 431; second outgoing line connector 440; second positioning hole 441; third incoming line connector 450; incoming line connecting part 451; third outgoing line connector 460; outgoing line connecting part 461; busbar 470; first flexible connection 480; second flexible connection 490; ground terminal 500; signal terminal 600. DETAILED DESCRIPTION

[0038] The following embodiments, given in conjunction with the accompanying drawings, further illustrate the specific implementation of the housing structure of the combined switch of the present application. The housing structure of the combined switch of the present application is not limited to the description of the following embodiments.

[0039] As Figure 4 and Figure 5As shown, the housing structure of the combined switch in this embodiment includes a housing 100, a ground terminal 500 fixed inside the housing 100, and at least one set of terminals. Each set of terminals includes an inlet terminal 310 and an outlet terminal 320. The housing 100 is provided with a first mounting groove 111, a second mounting groove 112, and a third mounting groove 113. The housing 100 is provided with a first inlet connector 410, a first outlet connector 420, a second inlet connector 430, a second outlet connector 440, a third inlet connector 450, and a third outlet connector 460. The first inlet connector 410 is electrically connected to the inlet terminal 310 and extends into the first mounting groove 111 or is connected to the first outlet terminal 320. Mounting slot 111 is connected; the first outgoing connector 420 is electrically connected to the outgoing terminal 320 and extends into or is connected to the first mounting slot 111; the second incoming connector 430 is electrically connected to the incoming terminal 310 and extends into or is connected to the second mounting slot 112; the second outgoing connector 440 extends into or is connected to the second mounting slot 112; the third incoming connector 450 is electrically connected to the second outgoing connector 440 and extends into or is connected to the third mounting slot 113; the third outgoing connector 460 is electrically connected to the ground terminal 500 and extends into or is connected to the third mounting slot 113.

[0040] like Figure 1 and Figure 4 As shown, this embodiment illustrates one application of the housing structure. The housing structure of this combined switch is used for plug-in installation of switch modules and for achieving electrical connections between the various switch modules. The switch modules are plugged into the housing 100 and include a first circuit breaker module 210, a second circuit breaker module 220, and a surge protector module 230. The first circuit breaker module 210 is plugged into the first mounting slot 111. When the first circuit breaker module 210 is inserted into the first mounting slot 111, its input terminal is electrically connected to the corresponding input terminal 310, and its output terminal is electrically connected to the corresponding... The outgoing terminal 320 is electrically connected; the second circuit breaker module 220 is plugged into the second mounting slot 112, and when the second circuit breaker module 220 is inserted into the second mounting slot 112, the incoming terminal of the second circuit breaker module 220 is electrically connected to the corresponding incoming terminal 310; the surge protector module 230 is plugged into the third mounting slot 113, and when the surge protector module 230 is inserted into the third mounting slot 113, the corresponding incoming terminal of the surge protector module 230 is electrically connected to the outgoing terminal of the second circuit breaker module 220 located in the second mounting slot 112, and the outgoing terminal of the surge protector module 230 is electrically connected to the ground terminal 500.

[0041] The shell structure of the combined switch of the embodiment is used for plug-in installation of the switch module and electrical connection between the switch modules, and the first incoming terminal 410, the first outgoing terminal 420, the second incoming terminal 430, the second outgoing terminal 440, the third incoming terminal 450 and the third outgoing terminal 460 are preset in the shell 100, so that the installation and electrical connection of the switch modules are completed by being inserted into the shell, the switch modules do not need to be wired to achieve electrical connection, the entire combined switch only needs to be wired once through the terminal, and the plug-in disassembly is convenient during maintenance.

[0042] As shown in Figure 4 and Figure 5 , the shell 100 is provided with a receiving cavity for accommodating the first incoming terminal 410, the first outgoing terminal 420, the second incoming terminal 430, the second outgoing terminal 440, the third incoming terminal 450 and the third outgoing terminal 460, the first mounting groove 111, the second mounting groove 112 and the third mounting groove 113 are located on one side of the receiving cavity in the plug-in direction of the switch module, and the first mounting groove 111, the second mounting groove 112, the third mounting groove 113 and the receiving cavity have a shared wall 114. The terminal is arranged in the independent receiving cavity, which improves electrical safety, facilitates maintenance of the terminal, and is also beneficial to automatic installation.

[0043] As shown in Figure 4 , the shared wall 114 is provided with a first through hole 117 and a second through hole 118 which respectively communicate the receiving cavity and the first mounting groove 111; the first incoming terminal 410 is a copper bar, and the first incoming terminal 410 at least partially extends into the first mounting groove 111 through the first through hole 117; the first outgoing terminal 420 is a copper bar, and the first outgoing terminal 420 at least partially extends into the first mounting groove 111 through the second through hole 118.

[0044] As shown in Figure 5 , the shell 100 is further provided with a first terminal cavity 123 which communicates with the receiving cavity and corresponds to the incoming terminal 310, a second terminal cavity 124 which communicates with the receiving cavity and corresponds to the outgoing terminal 320, and a third terminal cavity which communicates with the receiving cavity and corresponds to the ground terminal 500, the first incoming terminal 410 at least partially extends into the first terminal cavity 123, and is preferably directly connected with the incoming terminal 310, the first outgoing terminal 420 at least partially extends into the second terminal cavity 124, and is preferably directly connected with the outgoing terminal 320. Of course, the first incoming terminal 410 and the incoming terminal 310, and the first outgoing terminal 420 and the outgoing terminal 320 can also be indirectly electrically connected through other conductors.

[0045] As shown in Figure 5 and Figure 8As shown, the common wall body 114 is provided with at least two first limiting protrusions 115 and at least two second limiting protrusions 116. The first incoming line connector 410 is in U-shaped structure, one side of the first incoming line connector 410 extends into the first mounting slot 111, and the other side extends into the first terminal cavity 123. The bottom of the first incoming line connector 410 abuts against the common wall body 114 and is limited between the two first limiting protrusions 115, so that the first incoming line connector 410 is stably mounted.

[0046] The first outgoing line connector 420 is in U-shaped structure, one side of the first outgoing line connector 420 extends into the first mounting slot 111, and the other side extends into the second terminal cavity 124. The bottom of the first outgoing line connector 420 abuts against the common wall body 114 and is limited between the two second limiting protrusions 116, so that the first outgoing line connector 420 is stably mounted. It should be noted that the incoming line end of the first circuit breaker module 210 is in elastic clamp structure, and can be plug-connected with one side of the first incoming line connector 410. The outgoing line end of the first circuit breaker module 210 is in elastic clamp structure, and can be plug-connected with one side of the first outgoing line connector 420.

[0047] As shown in the drawings, Figure 8 The incoming line terminal 310 of the embodiment includes a first wiring frame 311 and a first wiring screw 312 arranged on the first wiring frame 311. The first wiring frame 311 extends in a direction away from the first wiring screw 312 and is provided with a first connecting portion 313 directly connected with the first incoming line connector 410. The other side of the first incoming line connector 410 and the first connecting portion 313 are connected in a stacking manner, and the connection mode therebetween is welding, riveting or the like. The incoming line terminal 310 of the embodiment is preferably an aluminum alloy terminal, and can also be a terminal made of other materials.

[0048] The outgoing line terminal 320 of the embodiment includes a second wiring frame 321 and a second wiring screw 322 arranged on the second wiring frame 321. The second wiring frame 321 extends in a direction away from the second wiring screw 322 and is provided with a second connecting portion 323 directly connected with the first outgoing line connector 420. The second connecting portion 323 and the other side of the first outgoing line connector 420 are connected in a stacking manner, and the connection mode therebetween is welding, riveting or the like. The outgoing line terminal 320 of the embodiment is preferably an aluminum alloy terminal, and can also be a terminal made of other materials.

[0049] As shown in the drawings, Figure 4 , Figure 5 and Figure 8As shown, the common wall body 114 is provided with a third through hole 119 and a fourth through hole 120, which respectively communicate with the accommodating cavity and the second mounting groove 112; the second incoming line connector 430 is electrically connected with the incoming line terminal 310 through the second flexible connection 490. The second incoming line connector 430 is a copper bar, at least part of which extends into the second mounting groove 112 through the third through hole 119, and the part of the second incoming line connector 430 located in the accommodating cavity is electrically connected with the incoming line terminal 310; the second outgoing line connector 440 is a copper bar, at least part of which extends into the second mounting groove 112 through the fourth through hole 120, and the part of the second outgoing line connector 440 located in the accommodating cavity is directly connected with the third incoming line connector 450. Of course, the second outgoing line connector 440 and the third incoming line connector 450 can also be indirectly electrically connected through other conductors.

[0050] Preferably, the second incoming line connector 430 is in an L-shaped structure, and the part of the second incoming line connector 430 located in the accommodating cavity extends along the plug-in direction of the switch module and is used for plug-in connection with the incoming line end of the second circuit breaker module 220 of the elastic clamp structure; the second outgoing line connector 440 is preferably in an L-shaped structure, and the part of the second outgoing line connector 440 located in the accommodating cavity extends along the plug-in direction of the switch module and is used for plug-in connection with the outgoing line end of the second circuit breaker module 220 of the elastic clamp structure. The second flexible connection 490 generally includes a conductive core and an insulator for wrapping the conductive core.

[0051] Preferably, the part of the second incoming line connector 430 located in the accommodating cavity is provided with a first positioning hole 431, and the common wall body 114 is provided with a first positioning protrusion 125 located in the accommodating cavity and matched with the first positioning hole 431, the part of the second incoming line connector 430 located in the accommodating cavity abuts against the common wall body 114 and is sleeved on the first positioning protrusion 125 through the first positioning hole 431. The first positioning protrusion 125 and the first positioning hole 431 are matched to position the second incoming line connector 430.

[0052] Preferably, the part of the second outgoing line connector 440 located in the accommodating cavity is provided with a second positioning hole 441, and the common wall body 114 is provided with at least two third limiting protrusions 127 and a second positioning protrusion 126 matched with the second positioning hole 441, the part of the second outgoing line connector 440 located in the accommodating cavity abuts against the common wall body 114 and is limited between the two third limiting protrusions 127, and is sleeved on the second positioning protrusion 126 through the second positioning hole 441. The second positioning protrusion 126 and the second positioning hole 441 are matched to position the second outgoing line connector 440; the two third limiting protrusions 127 are used for limiting the second outgoing line connector 440, improving the installation stability of the second outgoing line connector 440, and avoiding deviation.

[0053] As shown in Figure 4 , the common wall body 114 is provided with a fifth through hole 121 and a sixth through hole 122, which respectively communicate the accommodating cavity and the third mounting groove 113; the third incoming line connector 450 is a plug slot, the third incoming line connector 450 is provided corresponding to the fifth through hole 121, the third outgoing line connector 460 is a plug slot, the third outgoing line connector 460 is provided corresponding to the sixth through hole 122, and preferably the part of the second outgoing line connector 440 located in the accommodating cavity is directly connected with the third incoming line connector 450.

[0054] As shown in Figure 5 and Figure 8 , the third incoming line connector 450 is a elastic clamp structure, the end of the third incoming line connector 450 away from the third incoming line connector 450 socket extends in the direction away from the third outgoing line connector 460 and is provided with an incoming line connecting part 451, the second outgoing line connector 440 is at least partially laminated connected with the incoming line connecting part 451 in the plug-in direction of the switch module, and the connection mode between them is welding, riveting or other connection mode. It should be noted that the incoming line end of the surge protector module 230 at least partially extends out of the shell of the surge protector module 230, the incoming line end of the surge protector module 230 is the third incoming line connector 235, the part extending out of the shell is a straight sheet structure, which is used for plug-in connection with the third incoming line connector 450.

[0055] As shown in Figure 8 , the electrical connection structure between the third outgoing line connector 460 and the ground terminal 500 of the embodiment, the third outgoing line connector 460 is a elastic clamp structure, the end of the third outgoing line connector 460 away from the third outgoing line connector 460 socket extends in the direction away from the third incoming line connector 450 and is provided with an outgoing line connecting part 461, all the outgoing line connecting parts 461 of the third outgoing line connector 460 are connected with the bus bar 470, the outgoing line connecting part 461 and the bus bar 470 are laminated connected in the plug-in direction of the switch module, the connection mode between them is welding, riveting or other connection mode, and the bus bar 470 is electrically connected with the ground terminal 500 through the first soft connection 480. The ground terminal 500 of the embodiment is preferably an aluminum alloy terminal, and of course can also be a terminal made of other materials.

[0056] It should be noted that the outlet end of the surge protector module 230 at least partially extends out of the housing of the surge protector module 230, and the outlet end of the surge protector module 230 is a third outlet row connector 236, and the part extending out of the housing is a straight sheet structure for pluggable connection with the third outlet connector 460. The first flexible connection 480 generally includes a conductive core and an insulator for wrapping the conductive core. As other embodiments, the third inlet connector 450 and the third outlet connector 460 can also be copper bars in the form of row connectors, and the surge protector module 230 is provided with a slot.

[0057] As shown in FIGS. 1, 2 and 3, the first circuit breaker module 210, the second circuit breaker module 220 and the surge protector module 230 are arranged in the first installation slot 111, the second installation slot 112 and the third installation slot 113, respectively. Figure 2 And Figure 4 As shown in FIGS. 1, 2 and 3, the first circuit breaker module 210, the second circuit breaker module 220 and the surge protector module 230 are arranged in the first installation slot 111, the second installation slot 112 and the third installation slot 113, respectively.

[0058] Preferably, the ground terminal 500 is located on the side of the inlet terminal 310 or the outlet terminal 320 close to the second installation slot 112 and the third installation slot 113 in the first direction. The ground terminal 500 is located in the middle position and is arranged close to the third installation slot 113, which facilitates electrical connection with the surge protector module 230.

[0059] As shown in FIGS. 1, 2 and 3, the first circuit breaker module 210, the second circuit breaker module 220 and the surge protector module 230 are arranged in the first installation slot 111, the second installation slot 112 and the third installation slot 113, respectively. Figures 4-6As shown, in a preferred embodiment of the plug layout of the present embodiment, the plurality of first incoming plug 410 is arranged in a row along the first direction, the plurality of first outgoing plug 420 is arranged in a row along the first direction, and the plurality of first incoming plug and the plurality of first outgoing plug 420 are oppositely spaced in the second direction; the plurality of second incoming plug 430 is arranged in a row along the first direction, the plurality of second outgoing plug 440 is arranged in a row along the first direction, and the plurality of second incoming plug 430 and the plurality of second outgoing plug 440 are oppositely spaced in the second direction; the plurality of third incoming plug 450 is arranged in a row along the first direction, the plurality of third outgoing plug 460 is arranged in a row along the first direction, and the plurality of third incoming plug 450 and the plurality of third outgoing plug 460 are oppositely spaced in the second direction. Correspondingly, the plurality of incoming terminals of a single switch module is arranged in a row along the first direction, the plurality of outgoing terminals of a single switch module is arranged in a row along the first direction, and the plurality of incoming terminals and the plurality of outgoing terminals of a single switch module are oppositely spaced in the second direction, the single switch module refers to the first circuit breaker module 210 / the second circuit breaker module 220 / the surge protector module 230. The reasonable layout simplifies the wiring structure.

[0060] As shown in the figure, Figures 9-11 The first circuit breaker module 210 includes a plurality of first circuit poles 211 connected in sequence along the first direction, the module size (i.e. the size of the first circuit pole 211 in the first direction) of the first circuit pole 211 is 18mm or 27mm, the size of the first circuit breaker module 210 in the second direction is usually 45-60mm, and the size in the third direction is usually 60-80mm; the second circuit breaker module 220 is a backup protection circuit breaker, including a plurality of second circuit poles 221 connected in sequence along the first direction, the module size (i.e. the size of the second circuit pole 221 in the first direction) of the second circuit pole 221 is 13.5mm or 18mm; the surge protector module 230 includes a plurality of surge protection poles 231 connected in sequence along the first direction, the module size (i.e. the size of the surge protection pole 231 in the first direction) of the surge protection pole 231 is 13.5mm or 18mm. The size of the housing 100 of the combined switch in the second direction is 100-140mm.

[0061] It should be noted that the first circuit breaker module 210 is the main switch of the combined switch, which realizes overload and / or short circuit protection for the circuit or the electrical equipment, and can also be used for leakage, undervoltage and / or overvoltage protection according to needs; the first circuit breaker module 210 can be a conventional small plug-in circuit breaker, or a photovoltaic special circuit breaker, or a leakage circuit breaker, which can be an alternating current circuit breaker or a direct current circuit breaker; the first circuit breaker pole 211 is provided with an overload protection mechanism and / or a short circuit protection mechanism, the overload protection mechanism usually includes a bimetallic strip, and the short circuit protection mechanism usually includes an electromagnetic release. In the embodiment, the first circuit breaker module 210 is a photovoltaic special circuit breaker. The surge protector is an electrical appliance for protecting the circuit or the electrical equipment from damage caused by lightning overvoltage, operating overvoltage and power frequency transient overvoltage impact. The backup protection circuit breaker is an external disconnection device of the surge protector, which can withstand the expected surge current at the installation place of the protection surge protector, and can break the power frequency overcurrent generated due to the failure of the surge protector.

[0062] As shown in Figure 4 and Figure 9 , the electrical connection structure of the first circuit breaker module 210 of the embodiment, the shell 100 is provided with a first incoming line connector 410 and a first outgoing line connector 420 extending into the first mounting groove 111, the first incoming line connector 410 is electrically connected with the incoming line terminal 310, and the first outgoing line connector 420 is electrically connected with the outgoing line terminal 320; one end of the first circuit breaker pole 211 of the first circuit breaker module 210 is provided with a first handle 213 and a first pulling mechanism 214, and the end of each first circuit breaker pole 211 away from the first handle 213 is provided with a first incoming line jack and a first outgoing line jack, and the first incoming line jack and the first outgoing line jack are provided with elastic clamping structures for clamping the first incoming line connector 410 and the first outgoing line connector 420 respectively. The first circuit breaker module 210 and the terminal are electrically connected through the first incoming line connector 410 and the first outgoing line connector 420 pre-set in the shell 100, the first circuit breaker module 210 and the first incoming line connector 410 and the first outgoing line connector 420 are plug-in connected, realizing synchronous installation and electrical connection, and after the first circuit breaker module 210 and the first incoming line connector 410 and the first outgoing line connector 420 are plug-in separated, the circuit is isolated, and the application of the isolated switch or the knife switch can be avoided; moreover, the plug-in electrical connection is more reliable, avoiding false connection and wrong connection.

[0063] As shown in Figure 4 and Figure 10As shown, the electrical connection structure of the second circuit breaker module 220 of the embodiment, the shell 100 is provided with a second incoming line connector 430 and a second outgoing line connector 440 extending into the second mounting groove 112, the second incoming line connector 430 is electrically connected with the incoming line terminal 310, and the second outgoing line connector 440 is electrically connected with the incoming line terminal of the surge protector module 230; one end of the second circuit breaking pole 221 is provided with a second handle 223 and a second pulling mechanism 224, and the end of each second circuit breaking pole 221 away from the second handle 223 is provided with a second incoming line jack and a second outgoing line jack, and the second incoming line jack and the second outgoing line jack are provided with elastic clamping structures for clamping the second incoming line connector 430 and the second outgoing line connector 440, respectively. The second circuit breaker module 220 and the wiring terminal are electrically connected through the second incoming line connector 430 and the second outgoing line connector 440 pre-set in the shell 100, the second circuit breaker module 220 and the second incoming line connector 430 and the second outgoing line connector 440 are plug-in connected, the installation and electrical connection are synchronized, and when the second circuit breaker module 220 and the second incoming line connector 430 and the second outgoing line connector 440 are plug-in separated, the circuit is isolated, and the application of the isolation switch or the knife switch can be avoided; moreover, the plug-in electrical connection is more reliable, and the phenomena such as virtual connection and wrong connection are avoided.

[0064] As other embodiments, the first incoming line connector 410 and the first outgoing line connector 420, the second incoming line connector 430 and the second outgoing line connector 440 can also be replaced with the jack of the elastic clamping structure; correspondingly, the incoming line terminal and the outgoing line terminal of the first circuit breaker module 210 and the incoming line terminal and the outgoing line terminal of the second circuit breaker module 220 can also be replaced with the row plug (copper row) of the straight sheet structure.

[0065] It should be noted that the elastic clamping structure generally includes a straight or arc-shaped connecting sheet and two clamping sheets symmetrically connected to the two sides of the connecting sheet, the clamping sheets are of a bending structure, and the two clamping sheets are protrusively arranged in a direction of approaching each other.

[0066] As shown in Figure 4 and Figure 10 As shown, the mounting guide structure of the second circuit breaker module 220 of the embodiment, the side wall of the second mounting groove 112 provided along the first direction is protrusively provided with a plurality of first guide protrusions 128, the plurality of first guide protrusions 128 are arranged and disposed along the first direction at intervals, and the second circuit breaking pole 221 is provided with a first guide groove 222 matched with the first guide protrusion 128. The second circuit breaker module 220 is quickly and accurately installed, the split type second circuit breaker module 220 can be single-pole disassembled and replaced.

[0067] As shown in Figure 4 and Figure 11As shown, the electrical connection structure of the surge protector module 230 of the embodiment, the shell 100 is provided with a third incoming line connector 450 and a third outgoing line connector 460 in communication with the third mounting slot 113, the third incoming line connector 450 is electrically connected with the outgoing line end of the second circuit breaker module 220, and the third outgoing line connector 460 is electrically connected with the ground terminal 500; the surge protector module 230 is provided with an indication window 233 and a third pulling mechanism 234 at one end, and each surge protection pole 231 is provided with a third incoming line row connector 235 and a third outgoing line row connector 236 extending out of the surge protector module shell at the end away from the indication window 233, the third incoming line row connector 235 is plug-in connected with the third incoming line connector 450, and the third outgoing line row connector 236 is plug-in connected with the third outgoing line connector 460. The electrical connection between the surge protector module 230 and the second circuit breaker module 220 and the ground terminal 500 is realized through the third incoming line connector 450 and the third outgoing line connector 460 pre-set in the shell 100, the plug-in connection between the surge protector module 230 and the third incoming line connector 450 and the third outgoing line connector 460 realizes the synchronization of installation and electrical connection, and when the surge protector module 230 is plug-in separated from the third incoming line connector 450 and the third outgoing line connector 460, the circuit has been isolated, so that the application of the isolation switch or the knife switch can be avoided; moreover, the plug-in electrical connection is more reliable, avoiding the phenomena of virtual connection and wrong connection.

[0068] As shown in Figure 4 and Figure 11 The installation guide structure of the surge protector module 230 of the embodiment, the second guide protrusions 129 are protruded on the side wall of the third mounting slot 113 arranged along the first direction, the second guide protrusions 129 are arranged along the first direction, and the surge protection pole 231 is provided with a second guide groove 232 matched with the second guide protrusions 129. The surge protector module 230 can be quickly and accurately installed, and the split type surge protector module 230 can be single-pole disassembled and replaced.

[0069] As shown in Figure 1 and Figure 4As shown, the housing 100 is further provided with a signal terminal 600, which is electrically connected with the surge protector module 230; and / or, the signal terminal 600 is electrically connected with the first circuit breaker module 210, which is an intelligent circuit breaker, and further comprises a control electrode 212 for electrically connecting with the signal terminal 600. The signal terminal 600 is used for transmitting relevant signals of the surge protector module 230 and / or the first circuit breaker module 210, for example, the control electrode 212 is used for feeding back the working state of the surge protector module 230 and the on-off state of the first circuit breaker module 210; further provided with an automatic on-off electric mechanism, which can drive the first circuit breaker electrode 211 to automatically on-off; further provided with an electric leakage release, which can trigger the first circuit breaker electrode 211 to release and off when electric leakage is monitored.

[0070] Preferably, the signal terminal 600 is oppositely arranged with the ground terminal 500, and respectively located at two sides of the first installation slot 111. The layout is compact and reasonable, which saves the occupied space and reduces the size of the combined switch.

[0071] The layout of the incoming line terminal 310, the outgoing line terminal 320, the ground terminal 500 and the signal terminal 600 has various embodiments, for example, as shown in Figure 4The first configuration shown has the incoming terminal 310 and the second mounting slot 112 arranged sequentially along a first direction, the outgoing terminal 320 and the third mounting slot 113 arranged sequentially along a first direction, the ground terminal 500 located between the incoming terminal 310 and the second mounting slot 112 in the first direction, and the signal terminal 600 located between the outgoing terminal 320 and the third mounting slot 113 in the first direction. The second configuration differs from the first in that the positions of the ground terminal 500 and the signal terminal 600 are reversed; that is, the ground terminal 500 is located between the outgoing terminal 320 and the third mounting slot 113 in the first direction, and the signal terminal 600 is located between the incoming terminal 310 and the second mounting slot 112 in the first direction. The third method is that the incoming terminal 310 and the third mounting slot 113 are arranged sequentially along the first direction, the outgoing terminal 320 and the second mounting slot 112 are arranged sequentially along the first direction, the ground terminal 500 is located between the incoming terminal 310 and the third mounting slot 113 in the first direction, and the signal terminal 600 is located between the outgoing terminal 320 and the second mounting slot 112 in the first direction; the fourth method is different from the third method in that the positions of the ground terminal 500 and the signal terminal 600 are interchanged, that is, the ground terminal 500 is located between the outgoing terminal 320 and the second mounting slot 112 in the first direction, and the signal terminal 600 is located between the incoming terminal 310 and the third mounting slot 113 in the first direction. The first method is the preferred method. The incoming terminal 310 is located near the first mounting slot 111 and the second mounting slot 112, which facilitates the electrical connection between the incoming terminal 310 and the incoming terminal of the first circuit breaker module 210 and the second circuit breaker module 220, thus shortening the line. The signal terminal 600 is located near the first mounting slot 111 and the third mounting slot 113, which facilitates the electrical connection between the signal terminal 600 and the first circuit breaker module 210 and the surge protector module 230, thus shortening the line.

[0072] like Figure 4 and Figure 5 As shown, the housing 100 of this embodiment includes a base 130 and a base 110 arranged along the insertion / removal direction (i.e., the third direction) of the switch module. The base 110 has a first mounting groove 111, a second mounting groove 112 and a third mounting groove 113 on one side. The base 130 covers the other side of the base 110 to form the receiving cavity.

[0073] Preferably, the base 130 has a rail groove 131 on the side opposite to the base 110 for use with a rail in the wiring box. The combined switch of this embodiment can be integrally installed into the wiring box.

[0074] It should be noted that in the description of the present application, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings or the orientation or positional relationship commonly used in use, and are only for the convenience of description, and do not indicate that the device or element referred to must have a particular orientation, so it cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating relative importance.

[0075] The above is a further detailed description of the present application in combination with specific preferred embodiments, and the specific implementation of the present application cannot be limited to these descriptions. For ordinary skilled persons in the technical field to which the present application belongs, without departing from the concept of the present application, a number of simple deductions or substitutions can be made, which should be considered as falling within the scope of protection of the present application.

Claims

1. A housing structure of a combination switch, comprising a housing (100), a ground terminal (500) fixed in the housing (100), and at least one set of wiring terminals, each set of wiring terminals including an incoming terminal (310) and an outgoing terminal (320), characterized in that: The shell (100) is provided with a first installation slot (111), a second installation slot (112) and a third installation slot (113), the shell (100) is provided with a first incoming line connector (410), a first outgoing line connector (420), a second incoming line connector (430), a second outgoing line connector (440), a third incoming line connector (450) and a third outgoing line connector (460), the first incoming line connector (410) is electrically connected with the incoming line terminal (310) and extends into the first installation slot (111) or communicates with the first installation slot (111); the first outgoing line connector (420) is electrically connected with the outgoing line terminal (320) and extends into the first installation slot (111) or communicates with the first installation slot (111); the second incoming line connector (430) is electrically connected with the incoming line terminal (310) and extends into the second installation slot (112) or communicates with the second installation slot (112), and the second outgoing line connector (440) extends into the second installation slot (112) or communicates with the second installation slot (112); the third incoming line connector (450) is electrically connected with the second outgoing line connector (440) and extends into the third installation slot (113) or communicates with the third installation slot (113); the third outgoing line connector (460) is electrically connected with the ground terminal (500) and extends into the third installation slot (113) or communicates with the third installation slot (113).

2. The housing structure of a combination switch according to claim 1, wherein: The shell (100) is provided with a containing cavity for containing the first incoming line connector (410), the first outgoing line connector (420), the second incoming line connector (430), the second outgoing line connector (440), the third incoming line connector (450) and the third outgoing line connector (460), the first installation slot (111), the second installation slot (112) and the third installation slot (113) are located on one side of the containing cavity, and the first installation slot (111), the second installation slot (112), the third installation slot (113) and the containing cavity have a shared wall body (114) therebetween.

3. The housing structure of a combination switch according to claim 2, wherein: The shared wall body (114) is provided with a first through hole (117) and a second through hole (118) for respectively communicating the containing cavity with the first installation slot (111), the first incoming line connector (410) is a copper bar, the first incoming line connector (410) at least partially extends into the first installation slot (111) through the first through hole (117), and the first outgoing line connector (420) is a copper bar, the first outgoing line connector (420) at least partially extends into the first installation slot (111) through the second through hole (118).

4. The housing structure of a combination switch according to claim 2, wherein: The shell (100) is further provided with a first terminal cavity (123) corresponding to the incoming line terminal (310) and communicating with the containing cavity, and a second terminal cavity (124) corresponding to the outgoing line terminal (320) and communicating with the containing cavity, the first incoming line connector (410) at least partially extends into the first terminal cavity (123) and is directly connected with the incoming line terminal (310), and the first outgoing line connector (420) at least partially extends into the second terminal cavity (124) and is directly connected with the outgoing line terminal (320).

5. The housing structure of a combination switch according to claim 4, wherein: The common wall body (114) is provided with at least two first limiting protrusions (115) and at least two second limiting protrusions (116); the first incoming line connector (410) is in U-shaped structure, one side of the first incoming line connector (410) extends into the first installation slot (111), the other side extends into the first terminal cavity (123), and the bottom of the first incoming line connector (410) is located on the common wall body (114) and is limited between the two first limiting protrusions (115); The first outgoing line connector (420) is in U-shaped structure, one side of the first outgoing line connector (420) extends into the first installation slot (111), the other side extends into the second terminal cavity (124), and the bottom of the first outgoing line connector (420) is located on the common wall body (114) and is limited between the two second limiting protrusions (116).

6. The housing structure of a combination switch according to claim 1 or 4, wherein: The incoming line terminal (310) comprises a first wiring frame (311) and a first wiring screw (312) arranged on the first wiring frame (311), the first wiring frame (311) is provided with a first connecting part (313) directly connected with the first incoming line connector (410) in the direction away from the first wiring screw (312); the outgoing line terminal (320) comprises a second wiring frame (321) and a second wiring screw (322) arranged on the second wiring frame (321), the second wiring frame (321) is provided with a second connecting part (323) directly connected with the first outgoing line connector (420) in the direction away from the second wiring screw (322).

7. The housing structure of a combination switch according to claim 2, wherein: The common wall body (114) is provided with a third through hole (119) and a fourth through hole (120) respectively communicating the accommodating cavity and the second installation slot (112); the second incoming line connector (430) is a copper bar, the second incoming line connector (430) at least partially extends into the second installation slot (112) through the third through hole (119), and the part of the second incoming line connector (430) located in the accommodating cavity is electrically connected with the incoming line terminal (310); the second outgoing line connector (440) is a copper bar, the second outgoing line connector (440) at least partially extends into the second installation slot (112) through the fourth through hole (120), and the part of the second outgoing line connector (440) located in the accommodating cavity is directly connected with the third incoming line connector (450).

8. The housing structure of a combination switch according to claim 2, wherein: The part of the second incoming line connector (430) located in the accommodating cavity is provided with a first positioning hole (431), the common wall body (114) is provided with a first positioning protrusion (125) located in the accommodating cavity and matched with the first positioning hole (431), and the part of the second incoming line connector (430) located in the accommodating cavity is located on the common wall body (114) and is sleeved on the first positioning protrusion (125) through the first positioning hole (431).

9. The housing structure of a combination switch according to claim 2, wherein: The second outlet connector (440) is provided with a second positioning hole (441) on the part located in the accommodating cavity, the shared wall body (114) is provided with at least two third limiting protrusions (127) and a second positioning protrusion (126) matched with the second positioning hole (441), the part of the second outlet connector (440) located in the accommodating cavity is abutted against the shared wall body (114) and is limited between the two third limiting protrusions (127), and the second outlet connector (440) is sleeved on the second positioning protrusion (126) through the second positioning hole (441).

10. The housing structure of a combination switch according to claim 2, wherein: The shared wall body (114) is provided with a fifth through hole (121) and a sixth through hole (122) penetrating through and respectively communicating the accommodating cavity and the third mounting groove (113); the third inlet connector (450) is a slot, the third inlet connector (450) is provided in correspondence with the fifth through hole (121), and the third outlet connector (460) is a slot, the third outlet connector (460) is provided in correspondence with the sixth through hole (122).

11. The housing structure of a combination switch according to claim 1 or 7 or 10, wherein: The third inlet connector (450) is a resilient clamp structure, one end of the third inlet connector (450) away from the third inlet connector (450) socket extends in a direction away from the third outlet connector (460) and is provided with an inlet connecting part (451), and the second outlet connector (440) is at least partially connected in a stack with the inlet connecting part (451).

12. The housing structure of a combination switch according to claim 1 or 10, wherein: The third outlet connector (460) is a resilient clamp structure, one end of the third outlet connector (460) away from the third outlet connector (460) socket extends in a direction away from the third inlet connector (450) and is provided with an outlet connecting part (461), the outlet connecting part (461) of all the third outlet connectors (460) is connected with the bus bar (470), and the bus bar (470) is electrically connected with the ground terminal (500) through the first soft connection (480).

13. The housing structure of a combination switch according to claim 2, characterized by: The shell (100) comprises a base (130) and a base (110), one side of the base (110) is provided with the first mounting groove (111), the second mounting groove (112) and the third mounting groove (113), and the other side of the base (110) is covered by the base (130) to form the accommodating cavity.

14. The housing structure of a combination switch according to claim 1, characterized by: The shell (100) is further provided with a signal terminal (600), and the signal terminal (600) is arranged opposite to the ground terminal (500).

15. The housing structure of a combination switch according to claim 1, characterized by: The second mounting slot (112) and the third mounting slot (113) are located on one side of the first mounting slot (111) in the first direction, the second mounting slot (112) and the third mounting slot (113) are sequentially arranged along the second direction, the incoming line terminal (310) and the outgoing line terminal (320) are oppositely arranged on both sides of the first mounting slot (111) in the second direction, a plurality of the incoming line terminals (310) are arranged in rows along the first direction, a plurality of the outgoing line terminals (320) are arranged in rows along the first direction, the openings of the first mounting slot (111), the second mounting slot (112) and the third mounting slot (113) are all arranged towards the third direction, and the first direction, the second direction and the third direction are perpendicular to each other.

16. The housing structure of a combination switch according to claim 15, wherein: A plurality of first incoming line connectors (410) are arranged in rows along the first direction, a plurality of first outgoing line connectors (420) are arranged in rows along the first direction, and the plurality of first incoming line connectors and the plurality of first outgoing line connectors (420) are oppositely spaced apart in the second direction; A plurality of second incoming line connectors (430) are arranged in rows along the first direction, a plurality of second outgoing line connectors (440) are arranged in rows along the first direction, and the plurality of second incoming line connectors (430) and the plurality of second outgoing line connectors (440) are oppositely spaced apart in the second direction; A plurality of third incoming line connectors (450) are arranged in rows along the first direction, a plurality of third outgoing line connectors (460) are arranged in rows along the first direction, and the plurality of third incoming line connectors (450) and the plurality of third outgoing line connectors (460) are oppositely spaced apart in the second direction.

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