CN111769377A

CN111769377A - Terminal box

Info

Publication number: CN111769377A
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: 2020-10-13
Anticipated expiration: 2040-07-08
Also published as: CN111769377B

Abstract

The invention relates to the technical field of connectors and discloses a junction box. This terminal box includes the connecting seat, three connecting piece and two retaining members, connecting seat one surface is extended there is first separator, first separator encloses into mutually independent three cavity with the connecting seat, connecting seat another surface is extended there is the second separator, the second separator encloses into mutually independent three cavity with the connecting seat, three cavity on connecting seat one surface is through setting up three connecting hole and the connecting seat another three cavity on the surface intercommunication one by one of connecting seat, every connecting hole has all run through the connecting piece, the one end of every connecting piece is fixed with three-phase power cord through first retaining member, the other end of every connecting piece passes through the second retaining member and is fixed with the equipment line. Through above mode, can realize reliable fixed and the connection of three-phase power cord and equipment line to through keeping apart three-phase power cord or the cable of equipment line each other, satisfy creepage distance.

Description

Terminal 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 connected, a cable of the three-phase power supply needs to be divided into three cables, and the three cables are respectively connected in a wiring terminal in an abutting mode to achieve access of the three-phase power supply.

In the process of implementing the invention, the inventor finds that at least the following technical problems exist in the prior art: at present, when being connected three phase current's cable and external equipment line, directly dock three phase current's cable and external equipment line, direct butt joint between the cable mostly has one or more technical problems such as the guard action is relatively poor, the wiring is unreasonable, the installation is inconvenient.

Disclosure of Invention

In order to solve the technical problems, embodiments of the present invention provide a junction box, which can solve one or more technical problems of poor protection effect, unreasonable wiring, inconvenient installation, and the like of an existing three-phase power supply 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 is provided with a first connecting hole, a second connecting hole and a third connecting hole, 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, and the third cavity is communicated with the sixth cavity 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 the 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 includes a first separator, a second separator, and a third separator; the first baffle, the second baffle reaches 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 reaches the second baffle with the contained angle of third baffle all becomes the same angle.

Optionally, the second separator includes a fourth separator, a fifth separator, and a sixth separator; the fourth baffle, the fifth baffle reaches 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 reaches the fifth baffle with the contained angle of sixth baffle all becomes the same angle.

Optionally, the 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 penetrating through a wiring hole of a first-phase power line in the three-phase power line and then is in threaded connection with the first screw hole; the second screw is used for penetrating through a wiring hole of a second phase power line in the three-phase power line and then is in threaded connection with the second screw hole; and the third screw is used for penetrating through a wiring hole of a third phase power line in the three-phase power lines and then is in threaded connection with the third screw hole.

Optionally, the 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 penetrating through the wiring hole of the first equipment wire in the equipment wires and then is in threaded connection with the fourth screw hole; the fifth screw is used for penetrating through a wiring hole of a second equipment wire in the equipment wires and then is in threaded connection with a fifth screw hole; and the sixth screw is used for penetrating through the wiring hole of the third equipment wire in the equipment wires and then is in threaded connection with the sixth screw hole.

Optionally, the mobile phone further comprises a fixing piece, wherein a fixing hole is further formed in the connecting seat, and the fixing piece is used for penetrating through the fixing hole to fix external equipment.

Optionally, the outer circumferential surface of the connecting seat is provided with an external thread.

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

Optionally, the cover body further comprises an annular buckle, the annular buckle is located on a surface, deviating from the connecting seat, of the cover body, 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 arranged on one side, opposite to the open slot, of the annular buckle.

Optionally, still include the box body, the box body is equipped with the internal thread, the internal thread of box body with the external screw thread fit of connecting seat, in order jointly with the fourth cavity the fifth cavity reaches the sixth cavity seals, box body one side is equipped with the wiring mouth, the wiring mouth is used for supplying the equipment line passes.

The embodiment of the invention has the beneficial effects that: be different from prior art, the utility model provides a junction box, this junction box includes the connecting seat, three connecting piece and two retaining members, connecting seat one surface is extended there is first separator, first separator encloses into mutually independent three cavity with the connecting seat, connecting seat another surface is extended there is the second separator, the second separator encloses into mutually independent three cavity with the connecting seat, connecting seat one three cavity on the surface is through setting up three connecting hole and the connecting seat another three cavity on the surface intercommunication one by one, every connecting hole has all run through the connecting piece, the one end of every connecting piece is fixed with three-phase power line through first retaining member, the other end of every connecting piece passes through the second retaining member and is fixed with the equipment line. Through above mode, can realize reliable fixed and the connection of three-phase power cord and equipment line to through keeping apart three-phase power cord or the cable of equipment line each other, satisfy creepage distance.

Drawings

The embodiments are illustrated by way of example only in the accompanying drawings, in which like reference numerals refer to similar elements and which are not to be construed as limiting the embodiments, and in which the figures are not to scale unless otherwise specified.

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 the device wires in the junction box according to the 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 first spacer of FIG. 3;

fig. 5 is a schematic structural view of a connecting socket according to another embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a first connecting member, a second connecting member or a second connecting member according to another embodiment of the present invention;

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

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

fig. 9 is a schematic structural diagram of a cartridge according to an embodiment of the present invention.

Detailed Description

In order to facilitate an understanding of the invention, the invention is described in more detail below with reference to the accompanying drawings and specific examples. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and the like as used herein are for descriptive purposes 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. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

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

As shown in fig. 2 and 3, a first partition 42 extends from one surface of the connection seat 40, the first partition 42 and the connection seat 40 enclose a first chamber 42a, a second chamber 42b and a third chamber 42c which are independent from each other, a second partition 44 extends from the other surface of the connection seat 40, the second partition 44 and the connection seat 40 enclose a fourth chamber 44a, a fifth chamber 44b and a sixth chamber 44c which are independent from each other, 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 insulating members, including but not limited to: plastic, rubber, glass, ceramic, and the like.

The first, second, and

third chambers

42a, 42b, and 42c accommodate three cables of the three-phase power supply line 200, respectively, and the fourth, fifth, and

sixth chambers

44a, 44b, and 44c accommodate three cables of the equipment line 300, respectively.

Connecting seat 40 is set to circular, for the convenience wiring, can carry out reasonable setting to first connecting hole 40a, second connecting hole 40b and third connecting hole 40c, for example three connecting hole evenly distributed on connecting seat 40 for the wiring overall arrangement is along the axial equipartition dispersion. In addition, the arrangement can realize reasonable wiring of the cable.

Set up first separator 42 and second separator 44 respectively through two surfaces at connecting seat 40, be used for keeping apart three cables of three-phase power cord 200 respectively and keep apart the protection with three cables of equipment line 300, so that every binding post satisfies 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 on spacingly to the line mode of walking of every cable, therefore can satisfy the electrical wiring requirement.

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

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

This arrangement of the first and

second spacers

42, 44 makes it possible to achieve the isolation protection and the wiring rationality for each terminal.

Referring to fig. 5, the first and

second spacers

42 and 44 may be formed integrally with the connecting socket 40 or not, and all of these variations are within the scope of the present invention without departing from the technical spirit of the present invention.

The first connecting element 10 penetrates the first connecting hole 40a, the second connecting element 20 penetrates the second connecting hole 40b, and the third connecting element 30 penetrates the third connecting hole 40 c. The first connector 10 is in interference fit with the first connection hole 40a, the second connector 20 is in interference fit with the second connection hole 40b, and the third connector 30 is in interference fit with the third connection hole 40c, wherein the first connector 10, the second connector 20, and the third connector 30 may include any conductive material, such as copper, aluminum, and the like.

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, as long as the first locking member 50 fixes the three cables of the three-phase power line 200 to one end of the connecting members, the second locking member 60 fixes the three cables of the equipment line 300 to the other end of the connecting members, and the size and shape of the first connecting hole 40a, the second connecting hole 40b, and the third connecting hole 40c may be respectively set adaptively for the three connecting members, that is, the three connecting members may at least penetrate through the three connecting holes.

The first locking member 50 may fix three cables of the three-phase power supply line 200 to one ends of the first connecting member 10, the second connecting member 20, and the third connecting member 30, respectively, and the second locking member 60 may fix three cables of the equipment line 300 to the other ends of the first connecting member 10, the second connecting member 20, and the third connecting member 30, respectively. The three cables of the three-phase power line 200 correspond to the three cables of the device line 300 one by one, and the corresponding cables are electrically connected by a connecting member.

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 is 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 to the fourth screw hole 14 after passing through the wiring hole of the first one of the equipment wires 300, the fifth screw 64 is screwed to the fifth screw hole 24 after passing through the wiring hole of the second one of the equipment wires 300, and the sixth screw 66 is screwed to the sixth screw hole 34 after passing through the wiring hole of the third one of the equipment wires 300.

Fix the cable on the connecting piece through the retaining member, the connecting piece realizes being connected that three-phase power cord 200 and equipment line 300 correspond the cable, therefore can avoid the problem that the cable easily drops when dragging the cable in the installation.

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

Specifically, the fixing member 70 includes a first fixing screw 72, a second fixing screw 74 and a third fixing screw 76, 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 connection seat 40 to the external device.

As shown in fig. 3 and 4, the outer circumferential surface of the connection holder 40 is provided with an external thread.

As shown in fig. 3, 7 and 8, the junction box 100 further includes a cover 80, the cover 80 has an internal thread, the internal thread of the cover 80 is matched with the external thread of the connection seat 40 to jointly seal the first cavity 42a, the second cavity 42b and the third cavity 42c, an opening 80a is formed in 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 line 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, respectively, the first cavity 42a, the second cavity 42b and the third cavity 42c can be sealed by rotating the cover body 80 under the matching of the internal thread of the cover body 80 and the external thread of the connecting seat 40, so as to prevent the connection terminal of the three-phase power line 200 from contacting with the outside, thereby ensuring the safety of power connection of the three-phase power line 200.

As shown in fig. 8, the cover body 80 further includes an annular buckle 82, the annular buckle 82 is located on a surface of the cover body 80 departing from the connection seat 40, the annular buckle 82 can clamp the three-phase power line 200, one side of the annular buckle 82 is provided with an open slot 822, one side opposite to the open slot 822 is provided with a protruding portion 824, the open slot 822 and the protruding portion 824 are matched to be arranged to clamp and fix the three-phase power line 200 after the three-phase power line 200 sequentially passes through the annular buckle 82 and the open slot 80a, so that the three-phase power line 200 is prevented from shifting, and the annular buckle 82 is very convenient to install and can adapt to the three-phase power lines 200.

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

After the device line 300 is fixed to the fourth screw hole 14, the fifth screw hole 24 and the sixth screw hole 34 by the fourth screw 62, the fifth screw 64 and the sixth screw 66, respectively, the fourth chamber 44a, the fifth chamber 44b and the sixth chamber 44c are sealed under the matching of the internal thread of the box body 90 and the external thread of the connection seat 40, so as to prevent the connection terminal of the device line 300 from contacting with the outside, thereby ensuring the safety of the connection of the device line 200.

Finally, it is to be understood that the present invention may be embodied in many different forms and is not limited to the embodiments described in the present specification, which are provided as additional limitations to the present disclosure, and which are provided for the purpose of providing a more thorough understanding of the present disclosure. In the light of the above, the above features are combined with each other and many other variations of the different aspects of the invention described above are considered to be within the scope of the present description; further, modifications and variations will occur to those skilled in the art in light of the foregoing description, and it is intended to cover all such modifications and variations as fall within the true spirit and scope of the invention as defined by the appended claims.

Claims

1. A junction box, characterized in that, is applied to connecting three-phase power cord and equipment line, the junction box includes:

the connecting seat is provided with a first connecting hole, a second connecting hole and a third connecting hole, 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, and the third cavity is communicated with the sixth cavity 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 the three cables of the equipment cable with the other ends of the first connecting piece, the second connecting piece and the third connecting piece respectively.

2. The junction box of claim 1, wherein the first spacer comprises a first spacer, a second spacer, and a third spacer;

the first baffle, the second baffle reaches 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 reaches the second baffle with the contained angle of third baffle all becomes the same angle.

3. The junction box of claim 1, wherein the second spacer includes a fourth spacer, a fifth spacer, and a sixth spacer;

the fourth baffle, the fifth baffle reaches 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 reaches the fifth baffle with the contained angle of sixth baffle all becomes the same angle.

4. The junction box of claim 1, wherein the 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 penetrating through a wiring hole of a first-phase power line in the three-phase power line and then is in threaded connection with the first screw hole;

the second screw is used for penetrating through a wiring hole of a second phase power line in the three-phase power line and then is in threaded connection with the second screw hole;

and the third screw is used for penetrating through a wiring hole of a third phase power line in the three-phase power lines and then is in threaded connection with the third screw hole.

5. The junction box of claim 1, wherein the 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 penetrating through the wiring hole of the first equipment wire in the equipment wires and then is in threaded connection with the fourth screw hole;

the fifth screw is used for penetrating through a wiring hole of a second equipment wire in the equipment wires and then is in threaded connection with a fifth screw hole;

and the sixth screw is used for penetrating through the wiring hole of the third equipment wire in the equipment wires and then is in threaded connection with the sixth screw hole.

6. The junction box according to any one of claims 1 to 5, 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.

7. The junction box according to any one of claims 1 to 5, wherein an outer circumferential surface of the connection holder is provided with an external thread.

8. The junction box according to claim 7, further comprising a cover body, wherein the cover body is provided with internal threads, the internal threads of the cover body are matched with the external threads of the connecting seat to jointly seal the first cavity, the second cavity and the third cavity, and an opening is formed in the top of the cover body and used for allowing the three-phase power line to pass through.

9. The junction box of claim 8, 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 a side opposite to the open slot.

10. The junction box according to claim 8, further comprising a box body, wherein the box body is provided with internal threads, the internal threads of the box body are matched with the external threads of the connecting seat to jointly seal the fourth chamber, the fifth chamber and the sixth chamber, and a wiring port is formed in one side of the box body and used for allowing the equipment wire to pass through.