CN111769377B

CN111769377B - Junction box

Info

Publication number: CN111769377B
Application number: CN202010652799.8A
Authority: CN
Inventors: 吴米; 高文军; 杨成志
Original assignee: Shenzhen Megmeet Welding Technology Co ltd
Current assignee: Shenzhen Megmeet Welding Technology Co ltd
Priority date: 2020-07-08
Filing date: 2020-07-08
Publication date: 2024-07-16
Anticipated expiration: 2040-07-08
Also published as: CN111769377A

Abstract

The invention relates to the technical field of connectors and discloses a junction box. The junction box comprises a connecting seat, three connecting pieces and two locking pieces, wherein a first isolating piece extends on one surface of the connecting seat, three mutually independent cavities are formed by the first isolating piece and the connecting seat in an enclosing mode, a second isolating piece extends on the other surface of the connecting seat, three mutually independent cavities are formed by the second isolating piece and the connecting seat in an enclosing mode, the three cavities on one surface of the connecting seat are communicated with the three cavities on the other surface of the connecting seat one by one through three connecting holes arranged on the connecting seat, each connecting hole penetrates through the connecting piece, one end of each connecting piece is fixed with a three-phase power line through the first locking piece, and the other end of each connecting piece is fixed with the equipment line through the second locking piece. Through the mode, the three-phase power line and the equipment line can be reliably fixed and connected, and the creepage distance is met by mutually isolating the cables of the three-phase power line or the equipment line.

Description

Junction box

Technical Field

The invention relates to the technical field of connectors, in particular to a junction box.

Background

The three-phase power supply is a high-voltage input, and when the three-phase power supply is wired, the cable of the three-phase power supply needs to be divided into three cables, and the three cables are respectively butted in the wiring terminals to realize the access of the three-phase power supply.

In the process of implementing the present invention, the inventors have found that at least the following technical problems exist in the prior art: at present, when a cable of a three-phase power supply is connected with an external equipment wire, the cable of the three-phase power supply is directly abutted with the external equipment wire, and most of the direct abutted cables have one or more technical problems of poor protection effect, unreasonable wiring, inconvenient installation and the like.

Disclosure of Invention

In order to solve the technical problems, the embodiment of the invention provides a junction box which can solve one or more technical problems of poor protection effect, unreasonable wiring, inconvenient installation and the like of the existing three-phase power wiring device.

The embodiment of the invention provides the following technical scheme for solving the technical problems:

The embodiment of the invention provides a junction box, which is applied to connecting a three-phase power line and an equipment line, and comprises: the connecting seat, a first isolation piece extends on one surface of the connecting seat, the first isolation piece and the connecting seat enclose a first chamber, a second chamber and a third chamber which are mutually independent, a second isolation piece extends on the other surface of the connecting seat, the second isolation piece and the connecting seat enclose a fourth chamber, a fifth chamber and a sixth chamber which are mutually independent, a first connecting hole, a second connecting hole and a third connecting hole are further formed in the connecting seat, the first chamber is communicated with the fourth chamber through the first connecting hole, the second chamber is communicated with the fifth chamber through the second connecting hole, and the third chamber is communicated with the sixth chamber through the third connecting hole; the first connecting piece penetrates through the first connecting hole; the second connecting piece penetrates through the second connecting hole; the third connecting piece penetrates through the third connecting hole; the first locking piece is used for fixing the three cables of the three-phase power line with one end of the first connecting piece, one end of the second connecting piece and one end of the third connecting piece respectively; and the second locking piece is used for fixing three equipment wires corresponding to three cables of the three-phase power supply with the other ends of the first connecting piece, the second connecting piece and the third connecting piece respectively.

Optionally, the first separator comprises a first separator, a second separator and a third separator; the first baffle, the second baffle and the one end interconnect of third baffle, first baffle with the contained angle of second baffle, first baffle with the contained angle of third baffle and second baffle with the contained angle of third baffle all become the same angle.

Optionally, the second separator comprises a fourth separator, a fifth separator and a sixth separator; the fourth baffle, the fifth baffle and the one end interconnect of sixth baffle, the fourth baffle with the contained angle of fifth baffle, the fourth baffle with the contained angle of sixth baffle and the contained angle of fifth baffle with the sixth baffle all become the same angle.

Optionally, the first locking member includes a first screw, a second screw, and a third screw; one end of the first connecting piece is provided with a first screw hole, one end of the second connecting piece is provided with a second screw hole, and one end of the third connecting piece is provided with a third screw hole; the first screw is used for being screwed into the first screw hole after penetrating through the wiring hole of the first phase power line in the three-phase power line; the second screw is used for being screwed into the second screw hole after penetrating through the wiring hole of the second phase power line in the three-phase power line; the third screw is used for being screwed into the third screw hole after penetrating through the wiring hole of the third phase power line in the three phase power line.

Optionally, the second locking member includes a fourth screw, a fifth screw, and a sixth screw; the other end of the first connecting piece is provided with a fourth screw hole, the other end of the second connecting piece is provided with a fifth screw hole, and the other end of the third connecting piece is provided with a sixth screw hole; the fourth screw is used for being screwed into the fourth screw hole after penetrating through the wiring hole of the first equipment wire in the equipment wires; the fifth screw is used for being screwed into the fifth screw hole after penetrating through the wiring hole of the second equipment wire in the equipment wires; the sixth screw is used for being screwed into the sixth screw hole after penetrating through the wiring hole of the third equipment wire in the equipment wires.

Optionally, the portable electronic device further comprises a fixing piece, wherein the connecting seat is further provided with a fixing hole, and the fixing piece is used for penetrating through the fixing hole to fix external equipment.

Optionally, the outer peripheral surface of the connecting seat is provided with external threads.

Optionally, the three-phase power line connector further comprises a cover body, wherein the cover body is provided with internal threads, the internal threads of the cover body are matched with external threads of the connecting seat so as to jointly seal the first cavity, the second cavity and the third cavity, and the top of the cover body is provided with an opening used for allowing the three-phase power line to pass through.

Optionally, the lid still includes annular buckle, annular buckle is located the lid deviates from on the surface of connecting seat, annular buckle is used for the centre gripping three-phase power cord, annular buckle one side is equipped with the open slot, with the opposite side of open slot is equipped with the bellying.

Optionally, the box body is provided with an internal thread, the internal thread of the box body is matched with the external thread of the connecting seat so as to jointly seal the fourth chamber, the fifth chamber and the sixth chamber, one side of the box body is provided with a wiring port, and the wiring port is used for allowing the equipment wire to pass through.

The embodiment of the invention has the beneficial effects that: in order to solve the above problems, the present invention provides a junction box, which comprises a connecting seat, three connecting pieces and two locking pieces, wherein a surface of the connecting seat extends to form three independent chambers, a second separating piece extends to the other surface of the connecting seat, the second separating piece and the connecting seat form three independent chambers, the three chambers on one surface of the connecting seat are communicated with the three chambers on the other surface of the connecting seat one by one through three connecting holes of the connecting seat, each connecting hole is penetrated by a connecting piece, one end of each connecting piece is fixed with a three-phase power line through the first locking piece, and the other end of each connecting piece is fixed with an equipment line through the second locking piece. Through the mode, the three-phase power line and the equipment line can be reliably fixed and connected, and the creepage distance is met by mutually isolating the cables of the three-phase power line or the equipment line.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.

FIG. 1 is a schematic view of a junction box according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the wiring of equipment lines in a junction box according to an embodiment of the present invention;

FIG. 3 is an exploded view of a junction box according to an embodiment of the present invention;

FIG. 4 is a schematic view of the structure of the first spacer provided in FIG. 3;

FIG. 5 is a schematic view of a connection base according to another embodiment of the present invention;

FIG. 6 is a schematic view of a first connector, a second connector or a second connector according to another embodiment of the present invention;

FIG. 7 is a schematic view of a junction box according to another embodiment of the present invention;

FIG. 8 is a schematic view of a structure of a cover according to an embodiment of the present invention;

Fig. 9 is a schematic structural view of a case according to an embodiment of the present invention.

Detailed Description

In order that the invention may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings. It will be understood that when an element is referred to as being "fixed" to another element, it can be directly on the other element or one or more intervening elements may be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and the like are used in this specification for purposes of illustration only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.

In addition, the technical features mentioned in the different embodiments of the invention described below can be combined with one another as long as they do not conflict with one another.

The embodiment of the invention provides a junction box. Referring to fig. 1 to 3, the junction box 100 includes a first connector 10, a second connector 20, a third connector 30, a connector holder 40, a first locking member 50 and a second locking member 60. The junction box 100 is used for connecting a three-phase power line 200 and an equipment line 300.

As shown in fig. 2 and 3, a first spacer 42 extends from one surface of the connection seat 40, the first spacer 42 and the connection seat 40 enclose a first chamber 42a, a second chamber 42b and a third chamber 42c which are independent of each other, a second spacer 44 extends from the other surface of the connection seat 40, the second spacer 44 and the connection seat 40 enclose a fourth chamber 44a, a fifth chamber 44b and a sixth chamber 44c which are independent of each other, and the connection seat 40 is further provided with a first connection hole 40a, a second connection hole 40b and a third connection hole 40c, wherein the first chamber 42a is communicated with the fourth chamber 44a through the first connection hole 40a, the second chamber 42b is communicated with the fifth chamber 44b through the second connection hole 40b, and the third chamber 42c is communicated with the sixth chamber 44c through the third connection hole 40 c. The first and second spacers 42, 44 are each an insulator, including but not limited to: plastic, rubber, glass, ceramic, and the like.

The first, second and third chambers 42a, 42b and 42c respectively house three cables of the three-phase power line 200, and the fourth, fifth and sixth chambers 44a, 44b and 44c respectively house three cables of the equipment line 300.

The connecting seat 40 is arranged in a circular shape, so that the first connecting hole 40a, the second connecting hole 40b and the third connecting hole 40c can be reasonably arranged for convenient wiring, for example, three connecting holes are uniformly distributed on the connecting seat 40, so that the wiring layout is uniformly distributed and dispersed along the axial direction. Further, by such arrangement, reasonable wiring of the cable can be achieved.

Through set up first separator 42 and second separator 44 respectively at the two surfaces of connecting seat 40, be used for carrying out the isolation and protection with three cables of three-phase power cord 200 respectively and carrying out the isolation and protection with three cables of equipment line 300 to make every binding post satisfy creepage distance, improve the reliability, and three cavity that first separator 42 and connecting seat 40 formed and three cavity that second separator 44 and connecting seat 40 formed also can carry out spacingly to the wiring mode of every cable, consequently can satisfy the electrical wiring requirement.

Referring to fig. 4, the first spacer 42 includes a first spacer 422, a second spacer 424 and a third spacer 426, wherein one ends of the first spacer 422, the second spacer 424 and the third spacer 426 are connected to each other, and an included angle between the first spacer 422 and the second spacer 424, an included angle between the first spacer 422 and the third spacer 426 and an included angle between the second spacer 424 and the third spacer 426 are all the same.

Referring to fig. 2 again, the second separator 44 includes a fourth separator 442, a fifth separator 444, and a sixth separator 446, wherein one ends of the fourth separator 442, the fifth separator 444, and the sixth separator 446 are connected to each other, and an included angle between the fourth separator 442 and the fifth separator 444, an included angle between the fourth separator 442 and the sixth separator 446, and an included angle between the fifth separator 444 and the sixth separator 446 are all the same.

Such an arrangement of the first separator 42 and the second separator 44 can achieve insulation protection for each connection terminal and rationality of wiring.

Referring to fig. 5, the first spacer 42 and the second spacer 44 may be modified in various ways, and may be integrally formed with the connection base 40 or not integrally formed with the connection base 40, and it should be noted that all the modifications are within the scope of the present invention without departing from the technical concept of the present invention.

The first connecting member 10 penetrates through the first connecting hole 40a, the second connecting member 20 penetrates through the second connecting hole 40b, and the third connecting member 30 penetrates through the third connecting hole 40c. Wherein the first connecting member 10 is in interference fit with the first connecting hole 40a, the second connecting member 20 is in interference fit with the second connecting hole 40b, and the third connecting member 30 is in interference fit with the third connecting hole 40c, the first connecting member 10, the second connecting member 20 and the third connecting member 30 may comprise any conductive material, such as copper, aluminum, etc.

Referring to fig. 6, the first connecting member 10, the second connecting member 20 and the third connecting member 30 may be any size and shape, so long as the first locking member 50 fixes three cables of the three-phase power line 200 to one ends of the connecting members, the second locking member 60 fixes three cables of the equipment line 300 to the other ends of the connecting members, and the sizes and shapes of the first connecting hole 40a, the second connecting hole 40b and the third connecting hole 40c may be respectively adapted to the three connecting members, i.e. the three connecting members may at least respectively penetrate through the three connecting holes.

The first locking member 50 can fix three cables of the three-phase power cord 200 to one ends of the first connecting member 10, the second connecting member 20 and the third connecting member 30, and the second locking member 60 can fix three cables of the equipment cord 300 to the other ends of the first connecting member 10, the second connecting member 20 and the third connecting member 30. Wherein, three cables of the three-phase power line 200 are in one-to-one correspondence with three cables of the device line 300, and the corresponding cables are electrically connected through the connection pieces.

In some embodiments, referring to fig. 7, one end of the first connecting member 10, the second connecting member 20 and the third connecting member 30 are respectively provided with a first screw hole 12, a second screw hole 22 and a third screw hole 32, and the first locking member 50 includes a first screw 52, a second screw 54 and a third screw 56.

The first screw 52 is screwed to the first screw hole 12 after passing through the wiring hole of the first phase power line in the three-phase power line 200, the second screw 54 is screwed to the second screw hole 22 after passing through the wiring hole of the second phase power line in the three-phase power line 200, and the third screw 56 is screwed to the third screw hole 32 after passing through the wiring hole of the third phase power line in the three-phase power line 200.

In some embodiments, the other ends of the first connecting member 10, the second connecting member 20 and the third connecting member 30 are respectively provided with a fourth screw hole 14 (not shown), a fifth screw hole 24 (not shown) and a sixth screw hole 34 (not shown), and the second locking member 60 includes a fourth screw 62, a fifth screw 64 and a sixth screw 66.

The fourth screw 62 is screwed into the fourth screw hole 14 after passing through the wiring hole of the first equipment line in the equipment line 300, the fifth screw 64 is screwed into the fifth screw hole 24 after passing through the wiring hole of the second equipment line in the equipment line 300, and the sixth screw 66 is screwed into the sixth screw hole 34 after passing through the wiring hole of the third equipment line in the equipment line 300.

The cable is fixed on the connecting piece through the locking piece, and the connecting piece realizes the connection of the three-phase power line 200 and the corresponding cable of the equipment line 300, so that the problem that the cable is easy to fall off when the cable is pulled in the installation process can be avoided.

As shown in fig. 7, the junction box 100 further includes a fixing member 70, and the connection base 40 is further provided with a fixing hole through which the fixing member 70 can pass to fix an external device. Wherein, the connecting seat 40 is fixed on a sheet metal plane structure with a certain thickness through a fixing piece 70.

Specifically, the fixing member 70 includes a first fixing screw 72, a second fixing screw 74 and a third fixing screw 76, and the fixing holes include a first fixing hole 40d, a second fixing hole 40e and a third fixing hole 40f (as shown in fig. 4), and the first fixing screw 72, the second fixing screw 74 and the third fixing screw 76 can respectively pass through the first fixing hole 40d, the second fixing hole 40e and the third fixing hole 40f to be fixed with an external device so as to fasten the connecting seat 40 on the external device.

As shown in fig. 3 and 4, the outer peripheral surface of the connecting base 40 is provided with external threads.

As shown in fig. 3, 7 and 8, the junction box 100 further includes a cover 80, the cover 80 is provided with internal threads, the internal threads of the cover 80 cooperate with the external threads of the connecting seat 40 to jointly seal the first chamber 42a, the second chamber 42b and the third chamber 42c, an opening 80a is provided at the top of the cover 80, and the opening 80a can be used for the three-phase power line 200 to pass through.

After the three-phase power cord 200 is fixed to the first screw hole 12, the second screw hole 22 and the third screw hole 32 by the first screw 52, the second screw 54 and the third screw 56, the first chamber 42a, the second chamber 42b and the third chamber 42c can be closed by rotating the cover 80 under the cooperation of the internal threads of the cover 80 and the external threads of the connecting seat 40, so that the connection terminals of the three-phase power cord 200 are prevented from contacting the outside, and the safety of the power access of the three-phase power cord 200 is ensured.

As shown in fig. 8, the cover 80 further includes an annular buckle 82, the annular buckle 82 is located on a surface of the cover 80 facing away from the connecting seat 40, the annular buckle 82 can clamp the three-phase power line 200, an open slot 822 is formed in one side of the annular buckle 82, a protruding portion 824 is formed in one side of the annular buckle 82 opposite to the open slot 822, the open slot 822 and the protruding portion 824 are matched with each other, after the three-phase power line 200 sequentially passes through the annular buckle 82 and the opening 80a, the three-phase power line 200 can be clamped and fixed, the three-phase power line 200 is prevented from being shifted, and the annular buckle 82 is very convenient to install and can adapt to the three-phase power lines 200 with different diameters.

As shown in fig. 9, the junction box 100 further includes a box body 90, the box body 90 is provided with internal threads, the internal threads of the box body 90 cooperate with external threads of the connecting seat 40 to jointly seal the fourth chamber 44a, the fifth chamber 44b and the sixth chamber 44c, and one side of the box body 90 is provided with a junction port 92, and the junction port 92 is used for allowing the equipment wire 300 to pass through.

After the equipment wire 300 is fixed to the fourth screw hole 14, the fifth screw hole 24 and the sixth screw hole 34 by the fourth screw hole 62, the fifth screw hole 64 and the sixth screw hole 66, the fourth chamber 44a, the fifth chamber 44b and the sixth chamber 44c are closed under the cooperation of the internal threads of the box body 90 and the external threads of the connecting seat 40, so that the connection terminal of the equipment wire 300 is prevented from contacting with the outside, and the safety of the access of the equipment wire 200 is ensured.

Finally, it is to be noted that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, which are not to be construed as additional limitations on the scope of the invention, but rather as providing for a more thorough understanding of the present invention. And under the idea of the invention, the technical features described above are continuously combined with each other, and many other variations exist in different aspects of the invention as described above, which are all considered as the scope of the description of the invention; further, modifications and variations of the present invention may be apparent to those skilled in the art in light of the foregoing teachings, and all such modifications and variations are intended to be included within the scope of this invention as defined in the appended claims.

Claims

1. A junction box for connecting a three-phase power line to a device line, the junction box comprising:

The connecting seat, a first isolation piece extends on the first surface of the connecting seat, the first isolation piece and the connecting seat enclose a first cavity, a second cavity and a third cavity which are mutually independent, a second isolation piece extends on the other surface of the connecting seat, the second isolation piece and the connecting seat enclose a fourth cavity, a fifth cavity and a sixth cavity which are mutually independent, a first connecting hole, a second connecting hole and a third connecting hole are further formed in the connecting seat, the first cavity is communicated with the fourth cavity through the first connecting hole, the second cavity is communicated with the fifth cavity through the second connecting hole, the third cavity is communicated with the sixth cavity through the third connecting hole, the first isolation piece comprises a first partition board, a second partition board and a third partition board, one end of the second partition board and one end of the third partition board are mutually connected, the first partition board and the second partition board form an included angle with the fourth partition board, the fourth partition board and the fifth partition board form an included angle with the fourth partition board and the fourth partition board, the fourth partition board and the fifth partition board form an included angle with the fourth partition board and the same included angle with the fourth partition board;

the first connecting piece penetrates through the first connecting hole;

the second connecting piece penetrates through the second connecting hole;

the third connecting piece penetrates through the third connecting hole;

The first locking piece is used for fixing the three cables of the three-phase power line with one end of the first connecting piece, one end of the second connecting piece and one end of the third connecting piece respectively;

and the second locking piece is used for fixing the three cables of the equipment wire with the first connecting piece, the second connecting piece and the other end of the third connecting piece respectively.

2. The junction box of claim 1 wherein said first locking member comprises a first screw, a second screw and a third screw;

one end of the first connecting piece is provided with a first screw hole, one end of the second connecting piece is provided with a second screw hole, and one end of the third connecting piece is provided with a third screw hole;

The first screw is used for being screwed into the first screw hole after penetrating through the wiring hole of the first phase power line in the three-phase power line;

The second screw is used for being screwed into the second screw hole after penetrating through the wiring hole of the second phase power line in the three-phase power line;

the third screw is used for being screwed into the third screw hole after penetrating through the wiring hole of the third phase power line in the three phase power line.

3. The junction box of claim 1 wherein said second locking member comprises a fourth screw, a fifth screw and a sixth screw;

The other end of the first connecting piece is provided with a fourth screw hole, the other end of the second connecting piece is provided with a fifth screw hole, and the other end of the third connecting piece is provided with a sixth screw hole;

The fourth screw is used for being screwed into the fourth screw hole after penetrating through the wiring hole of the first equipment wire in the equipment wires;

The fifth screw is used for being screwed into the fifth screw hole after penetrating through the wiring hole of the second equipment wire in the equipment wires;

the sixth screw is used for being screwed into the sixth screw hole after penetrating through the wiring hole of the third equipment wire in the equipment wires.

4. A junction box according to any one of claims 1 to 3, further comprising a fixing member, wherein the connecting base is further provided with a fixing hole, and the fixing member is used for fixing an external device through the fixing hole.

5. A junction box according to any one of claims 1 to 3, wherein the outer peripheral surface of the connection base is provided with external threads.

6. The junction box according to claim 5, further comprising a cover body provided with internal threads, wherein the internal threads of the cover body cooperate with the external threads of the connection base to jointly close the first chamber, the second chamber and the third chamber, and an opening is provided at the top of the cover body, wherein the opening is used for the three-phase power line to pass through.

7. The junction box according to claim 6, wherein the cover further comprises an annular buckle, the annular buckle is located on a surface of the cover facing away from the connecting seat, the annular buckle is used for clamping the three-phase power line, an open slot is formed in one side of the annular buckle, and a protruding portion is formed in the side, opposite to the open slot, of the annular buckle.

8. The junction box according to claim 7, further comprising a box body provided with internal threads, wherein the internal threads of the box body cooperate with external threads of the connection base to jointly close the fourth chamber, the fifth chamber and the sixth chamber, and a junction port is provided on one side of the box body, wherein the junction port is used for passing the equipment wire.