CN215581054U

CN215581054U - Connecting device for photovoltaic field junction box

Info

Publication number: CN215581054U
Application number: CN202121380092.2U
Authority: CN
Inventors: 邢李方; 刘洪波; 王宏伟; 张英旭; 余运奎; 周丹
Original assignee: Huaneng Tongyu United Wind Power Generation Co ltd; Huaneng Siping Wind Power Generation Co ltd; Zhenlai Wind Power Plant of Huaneng Jilin Power Generation Co Ltd
Current assignee: Huaneng Tongyu United Wind Power Generation Co ltd; Huaneng Siping Wind Power Generation Co ltd; Zhenlai Wind Power Plant of Huaneng Jilin Power Generation Co Ltd
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2022-01-18
Anticipated expiration: 2031-06-21

Abstract

The utility model discloses a connecting device for a photovoltaic field junction box, which is used for connecting a lead and a switch and comprises: the bottom plate, the sliding block, the connecting rod, connecting plate and butt piece, first spout has been seted up along length direction to the inside of bottom plate, the second spout has been seted up along length direction to the outer wall of bottom plate, the second spout is linked together with first spout, place first spout in the sliding block slidable, connecting rod slidable inserts and locates the second spout, and connect in the sliding block, the one end of connecting plate is connected with the wire, first connecting hole has been seted up to the relative connecting rod of the other end, the connecting rod is located through first connecting hole cover to the connecting plate, the butt piece can be dismantled and connect in the connecting rod, and the butt is kept away from the one end of bottom plate in the connecting plate. The utility model can solve the problem that the connecting hole arranged on the copper bar is fixed in position so as to cause the breakage of the cable connected with the connecting hole in the prior art.

Description

Connecting device for photovoltaic field junction box

Technical Field

The utility model relates to the technical field of junction boxes, in particular to a connecting device for a photovoltaic field junction box.

Background

The junction box is an important part used in a transmission cable system in the power industry, and is widely used in a photovoltaic power generation field, and usually, a cable lead is connected with a switch through a copper bar to realize the communication of a circuit.

The centralized photovoltaic field area is big, it is also big to receive the influence of weather etc, the cable in photovoltaic field receives the influence circuit of temperature and takes place expend with heat and contract with cold, or when sinking because of the ground, the cable of receiving in the junction box can produce great stress, the stress of production can act on copper bar and wiring switch, and produce the pulling force to it, because the connecting hole of seting up on the copper bar is fixed, under the effect of pulling force, the junction of copper bar and cable conductor, can't bear the pulling force and can break, thereby cause the equipment that is connected to damage.

Therefore, a connecting device for a photovoltaic field junction box is needed, and the problem that in the prior art, a connecting hole formed in a copper bar is fixed in position, so that a cable connected with the connecting hole is broken is solved.

SUMMERY OF THE UTILITY MODEL

In view of this, it is necessary to provide a connecting device for a photovoltaic field junction box, which solves the technical problem in the prior art that a cable connected to a copper bar is broken due to the fixed position of a connecting hole formed in the copper bar.

In order to achieve the above technical object, a connection device for a photovoltaic field junction box according to an aspect of the present invention is a connection device for connecting a lead and a switch, including:

the inner part of the bottom plate is provided with a first sliding groove along the length direction, the outer wall of the bottom plate is provided with a second sliding groove along the length direction, and the second sliding groove is communicated with the first sliding groove;

the sliding block is arranged in the first sliding groove in a sliding mode;

the connecting rod can be inserted into the second sliding groove in a sliding mode and is connected to the sliding block;

one end of the connecting plate is connected with the lead, the other end of the connecting plate is provided with a first connecting hole opposite to the connecting rod, and the connecting plate is sleeved on the connecting rod through the first connecting hole;

the butt joint block is detachably connected to the connecting rod and is butted against one end, far away from the bottom plate, of the connecting plate.

Further, the cross-section of the one end of connecting rod is square, the one end slidable of connecting rod is inserted and is located the second spout, and connect with the sliding block, the cross-section of the other end of connecting rod is circular to set up the external screw thread, the butt joint piece is the nut, nut threaded connection in the other end of connecting rod.

Further, the connecting device for the photovoltaic field junction box further comprises a gasket, the other end of the connecting rod is sleeved with the gasket, one end of the gasket is abutted to the connecting plate, and the other end of the gasket is abutted to the nut.

Further, a connecting device for photovoltaic place junction box still includes the centre gripping subassembly, the centre gripping subassembly still includes first grip block and second grip block, first grip block with the second grip block is parallel to each other and the interval sets up, and all with the connecting plate is connected, first grip block with first centre gripping groove and second centre gripping groove have been seted up respectively along its length direction to the opposite side of second grip block, first centre gripping groove with the second centre gripping groove surrounds and forms the centre gripping hole, and the wire is inserted and is located the centre gripping hole to the butt in the inner wall in centre gripping hole.

Further, the connection plate has elasticity.

Furthermore, at least one threaded hole is further formed in the first clamping block, at least one through hole is formed in the second clamping block relative to the threaded hole, the clamping assembly further comprises at least one screw, the screw and the through hole are arranged in a one-to-one correspondence mode, the threaded end of the screw penetrates through the through hole and is in threaded connection with the threaded hole, and the large-diameter section of the screw abuts against the second clamping block.

Furthermore, the number of the threaded holes is two, and the two threaded holes are symmetrically arranged along the axis of the clamping hole.

Furthermore, a second connecting hole is formed in the other end of the bottom plate, and the bottom plate is detachably connected to the switch through the second connecting hole.

Furthermore, the bottom plate is made of metal copper.

Furthermore, the sliding block, the connecting rod, the connecting plate, the first clamping block and the second clamping block are made of conductive materials.

Compared with the prior art, the utility model has the beneficial effects that: first spout and second spout have been seted up respectively along its length direction to the bottom plate, place first spout in the sliding block slidable in, the connecting plate is established through first connecting hole cover and is connected with the connecting rod, the connecting rod is connected in the sliding block, and can follow the direction slip of second spout, be used for connecting cable conductor and switch, and through the sliding block, the connection of connecting rod and butt joint piece, make bottom plate and connecting plate slidable relatively, be used for solving because of the rigidity of connecting hole, thereby lead to the cracked problem of cable conductor.

Drawings

Fig. 1 is a schematic structural diagram of a connection device for a photovoltaic field junction box according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic structural diagram of a base plate according to an embodiment of the present invention;

FIG. 4 is a schematic structural view from another perspective of a connection device for a photovoltaic field junction box according to an embodiment of the present invention;

fig. 5 is a sectional view taken along line B-B in fig. 4.

Detailed Description

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the utility model and together with the description, serve to explain the principles of the utility model and not to limit the scope of the utility model.

Referring to fig. 1 to 3, the present invention provides a connection device for a photovoltaic field junction box, for connecting a wire and a switch, comprising: bottom plate 1, sliding block 2, connecting rod 3, connecting plate 4 and butt piece 5, first spout 11 has been seted up along length direction in the inside of bottom plate 1, second spout 12 has been seted up along length direction to the outer wall of bottom plate 1, second spout 12 is linked together with first spout 11, place first spout 11 in sliding of sliding block 2, connecting rod 3 slidable inserts and locates second spout 12, and connect in sliding block 2, the one end of connecting plate 4 is connected with the wire, first connecting hole 41 has been seted up to the relative connecting rod 3 of the other end, connecting rod 3 is located to connecting plate 4 through first connecting hole 41 cover, butt piece 5 can dismantle to be connected in connecting rod 3, and the butt is kept away from the one end of bottom plate 1 in connecting plate 4.

Further, it can be understood that, first spout 11 and second spout 12 have been seted up respectively along its length direction to bottom plate 1, place first spout 11 in the sliding of sliding block 2 is slidable, connecting plate 4 establishes with connecting rod 3 through first connecting hole 41 cover, connecting rod 3 is connected in sliding block 2, and can follow the direction slip of second spout 12, be used for connecting cable conductor and switch, and through sliding block 2, connecting rod 3 and butt joint piece 5's connection, make bottom plate 1 and connecting plate 4 slidable relatively, be used for solving because of the rigidity of connecting hole, thereby lead to the cracked problem of cable conductor.

Further, as shown in fig. 4, one end of the bottom plate 1 is provided with a first sliding groove 11 along the length direction, specifically, the first sliding groove 11 penetrates through two side walls of the bottom plate 1 for connecting and installing the connecting plate 4 and the wire, and the other end of the bottom plate 1 is provided with a second connecting hole 13 for conveniently connecting the device to the switch in a detachable manner.

As shown in fig. 1 and 2, the cross section of one end of the connecting rod 3 is square, one end of the connecting rod 3 is slidably inserted into the second sliding groove 12 and connected to the sliding block 2, the cross section of the other end of the connecting rod 3 is circular and provided with an external thread, the abutting block 5 is a nut, and the nut is in threaded connection with the other end of the connecting rod 3.

Further, it can be understood that, in order to prevent the relative sliding between the connecting rod 3 and the bottom plate 1 and between the connecting plate 4 and the bottom plate 1, the cross section of one end of the connecting rod 3 is square, the square end of the connecting rod 3 is inserted into the second sliding groove 12 through the first connecting hole 41 and connected to the sliding block 2, and the connecting rod 3 can slide along the guide of the second sliding groove 12 along with the sliding block 2.

Further, the nut is in threaded fit with the threaded section of the connecting rod 3, and is used for facilitating the disassembly and assembly of the device.

As shown in fig. 2 and 4, the connecting device for the photovoltaic field junction box further comprises a gasket 6, the gasket 6 is sleeved at the other end of the connecting rod 3, one end of the gasket 6 abuts against the connecting plate 4, and the other end of the gasket 6 abuts against the nut.

Further, the washer 6 is sleeved on the thread section of the connecting rod 3 and is respectively abutted against the connecting plate 4 and the nut, so that the functions of reinforcing connection and preventing relative sliding are achieved.

As shown in fig. 4 and 5, the connecting device for the photovoltaic field junction box further includes a clamping assembly 7, the clamping assembly 7 further includes a first clamping block 71 and a second clamping block 72, the first clamping block 71 and the second clamping block 72 are parallel to each other and arranged at intervals, and are both connected with the connecting plate 4, a first clamping groove 711 and a second clamping groove 721 are respectively formed on the opposite sides of the first clamping block 71 and the second clamping block 72 along the length direction thereof, the first clamping groove 711 and the second clamping groove 721 surround to form a clamping hole 73, and a wire is inserted into the clamping hole 73 and abuts against the inner wall of the clamping hole 73.

Further, it can be understood that the other end of the connecting plate 4 is provided with a clamping assembly 7 for installing and clamping the wires, the wires are connected to the connecting plate 4 through a clamping hole 73 formed by surrounding the first clamping groove 711 and the second clamping groove 721, the effects of convenient disassembly and installation are achieved, and meanwhile, self-adaptive adjustment can be performed according to the diameters of the cross sections of different wires.

As shown in fig. 4, the connection plate 4 has elasticity.

Further, it will be appreciated that the connecting plate 4 has a resilient nature for facilitating the clamping and tightening of the wires by the first and

second clamping blocks

71, 72.

As shown in fig. 5, the first clamping block 71 further defines at least one threaded hole 712, the second clamping block 72 defines at least one through hole 722 opposite to the threaded hole 712, the clamping assembly 7 further includes at least one screw 74, the screw 74 and the through hole 722 are disposed in a one-to-one correspondence, a threaded end of the screw 74 passes through the through hole 722 and is connected to the threaded hole 712 in a threaded manner, and a large diameter section of the screw is abutted against the second clamping block 72.

Further, it will be appreciated that the cooperation of the screw 74, the through hole 722 and the threaded hole 712 for the clamping assembly 7 provides a corresponding clamping force for the clamping of the wire in order to prevent relative sliding between the wire and the inner wall of the clamping bore 73.

Further, as shown in fig. 5, the number of the screw holes 712 is two, and the two screw holes 712 are symmetrically arranged along the axis of the holding hole 73.

Further, as shown in fig. 5, the other end of the base plate 1 is provided with a second connection hole 13, and the base plate 1 is detachably connected to the switch through the second connection hole 13.

Further, the material of the bottom plate 1 is copper.

Further, the sliding block 2, the connecting rod 3, the connecting plate 4, the first clamping block 71 and the second clamping block 72 are all made of conductive materials.

According to the specific working process, the bottom plate 1 is respectively provided with the first sliding groove 11 and the second sliding groove 12 along the length direction, the sliding block 2 is slidably arranged in the first sliding groove 11, the connecting plate 4 is sleeved with the connecting rod 3 through the first connecting hole 41, the connecting rod 3 is connected to the sliding block 2 and can slide along the guide direction of the second sliding groove 12 to be used for connecting a cable conductor and a switch, the bottom plate 1 and the connecting plate 4 can slide relatively through the connection of the sliding block 2, the connecting rod 3 and the abutting block 5, and the problem that the cable conductor is broken due to the fact that the position of the connecting hole is fixed is solved.

When the user uses, at first insert centre gripping hole 73 with the wire along the direction of centre gripping hole 73, screw up screw 74 simultaneously, avoid taking place relative slip between wire and connecting plate 4 and the centre gripping subassembly 7, locate the square section of connecting rod 3 with connecting plate 4 via first connecting hole 41 cover after that, and make connecting plate 4 butt in bottom plate 1, then in proper order with packing ring 6 and threaded connection in the screwed end of connecting rod 3, and screw up and prevent becoming flexible, connect bottom plate 1 in the inside switch of junction box through second connecting hole 13 at last, just accomplish the installation of this device.

Further, when the device needs to be disassembled or maintained, the lead can be conveniently and quickly disassembled only by sequentially loosening the nut and the screw 74.

Such setting is optimized the connecting hole of fixing on the copper bar for the wire can be followed the direction of first spout 11 and second spout 12 on the copper bar and slided, thereby makes between cable conductor and the switch can carry out automatic compensation according to the pulling force that produces, thereby solves among the prior art because of the fixed position of the connecting hole of seting up on the copper bar, thereby leads to the cracked technical problem of the cable conductor that is connected with it.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.

Claims

1. A connecting device for a photovoltaic field junction box for connecting a wire to a switch, comprising:

the sliding block is arranged in the first sliding groove in a sliding mode;

2. The connecting device for the photovoltaic field junction box as claimed in claim 1, wherein the cross section of one end of the connecting rod is square, one end of the connecting rod is slidably inserted into the second sliding groove and connected with the sliding block, the cross section of the other end of the connecting rod is round and provided with external threads, the abutting block is a nut, and the nut is in threaded connection with the other end of the connecting rod.

3. The connection device for the photovoltaic field junction box as claimed in claim 2, further comprising a washer sleeved on the other end of the connection rod, wherein one end of the washer abuts against the connection plate, and the other end of the washer abuts against the nut.

4. The connecting device for the photovoltaic field junction box according to claim 1, further comprising a clamping assembly, wherein the clamping assembly further comprises a first clamping block and a second clamping block, the first clamping block and the second clamping block are parallel to each other and arranged at intervals and are connected with the connecting plate, a first clamping groove and a second clamping groove are respectively formed in opposite sides of the first clamping block and the second clamping block along the length direction of the first clamping block and the second clamping block, the first clamping groove and the second clamping groove surround to form a clamping hole, and a wire is inserted into the clamping hole and abuts against the inner wall of the clamping hole.

5. The connection device for a photovoltaic field junction box of claim 4, wherein the connection plate has elasticity.

6. The connecting device for the photovoltaic field junction box as claimed in claim 4, wherein the first clamping block further defines at least one threaded hole, the second clamping block defines at least one through hole opposite to the threaded hole, the clamping assembly further comprises at least one screw, the screw and the through hole are arranged in a one-to-one correspondence, a threaded end of the screw passes through the through hole and is in threaded connection with the threaded hole, and a large-diameter section of the screw abuts against the second clamping block.

7. The connection device for a photovoltaic field junction box according to claim 6, wherein the number of the threaded holes is two, and the two threaded holes are symmetrically arranged along the axis of the clamping hole.

8. The connecting device for the photovoltaic field junction box as claimed in claim 1, wherein a second connecting hole is formed at the other end of the bottom plate, and the bottom plate is detachably connected to the switch through the second connecting hole.

9. The connection device for a photovoltaic field junction box of claim 8, wherein the base plate is made of copper.

10. The connection device for a photovoltaic field junction box of claim 1, wherein the sliding block, the connecting rod, the connecting plate, the first clamping block and the second clamping block are all of a conductive material.