CN209344463U - Cable-assembly - Google Patents

Abstract

This application relates to a cable assembly comprising: a cable including at least one phase wire and at least one ground wire for transmitting electrical signals; and a conversion device having the cable connected to at least one end and including a rotating component. The rotating component includes conductive plates, wherein when the rotating component rotates to a predetermined position, the conductive plates short-circuit each phase wire and the ground wire, and when the rotating component rotates to a normal position, the circuit between each phase wire and the ground wire is broken. Therefore, the cable assembly of this application can greatly simplify the maintenance process of power systems, thereby improving maintenance efficiency.

Description

cable assembly

technical field

The present application relates to the field of electric power technology, in particular to a cable assembly.

Background technique

With the development of modern society, electric energy has become one of the most important energy sources. Electrical energy, such as solar energy, is transmitted through the power system.

At present, the transmission cables of the power system are usually connected directly. If the electrical equipment needs to be repaired (maintenance, replacement, detection, etc.), it is necessary to disconnect the directly connected cables, and then reconnect the cables after the repair work is completed. This leads to complicated and inefficient power system maintenance process.

Utility model content

Based on this, it is necessary to provide a cable assembly capable of simplifying the maintenance process of the power system in view of the above technical problems.

A cable assembly, comprising:

Cables, including at least one phase wire and at least one ground wire, for transmitting electrical signals;

A conversion device, at least one end of which is connected to the cable, and includes a rotating part, the rotating part includes a conductive sheet, and when the rotating part rotates to a predetermined position, the conductive sheet connects each of the phase lines to the ground The wires are short-circuited, and when the rotating component rotates to the normal position, each of the phase wires and the ground wire is disconnected.

In one of these embodiments,

The conversion device further includes a connector assembly, the connector assembly includes a first connector and a second connector that cooperate with each other, and the rotating component is arranged on the first connector;

The first connector or the second connector is provided with a phase line insert and a grounding insert, the phase line insert is electrically connected to the corresponding phase line, and the ground insert is electrically connected to the ground wire; the first connection The connector is mated with the second connector, and when the rotating component is rotated to a predetermined position, the conductive sheet connects the phase wire plug-in and the grounding plug-in.

In one of the embodiments, the rotating part further includes a conductive cylinder, the conductive cylinder is used to be socketed on the ground plug, and the conductive sheet is connected to the conductive cylinder.

In one of the embodiments, the rotating component further includes an insulating part, the insulating part is arranged on the first connector, and the conductive cylinder is fixed on the insulating part.

In one embodiment, the phase line insert and the grounding insert are conductive pins, or the phase line insert and the grounding insert are conductive pins.

In one of these embodiments,

The first connector is a socket, the second connector is a plug, the first connector is provided with an elastic member, the second connector is provided with a limiting hole, and the first connector and the When the second connector is plugged and mated, the elastic member snaps into the limiting hole.

In one of these embodiments,

The first connector is a socket, the second connector is a plug, the second connector is provided with an elastic member, the first connector is provided with a limiting hole, and the first connector and the When the second connector is plugged and mated, the elastic member snaps into the limiting hole.

In one of these embodiments,

The conversion device also includes a screwing part, the screwing part is rotatably connected to the second connector, and the outer wall of the screwing part is provided with external threads;

The first connector includes a shielding portion, and an inner wall of the shielding portion is provided with an internal thread adapted to the external thread.

In one of the embodiments, the conversion device further includes a fixing part connected to the first connector and used for fixing the first connector.

In one of these embodiments,

The first connector is provided with a short-circuit mark and an open-circuit mark, and the rotating part is provided with an alignment structure; when the rotating part rotates until the alignment structure aligns with the short-circuit mark, the conductive sheet short circuit between the phase wire and the ground wire, and when the rotating part rotates to the point where the alignment structure aligns with the disconnection mark, the conductive sheet disconnects the phase wire and the ground wire road.

The above line assembly is provided with a conversion device. The conversion device includes a rotating part. When the rotating part rotates to a predetermined position, its conductive sheet short-circuits the phase line and the ground line. Therefore, when using the power system using the cable assembly of the present application, only the rotating parts need to be rotated when performing electrical equipment maintenance. Therefore, the cable assembly of the present application can greatly simplify the maintenance process of the power system, thereby improving the maintenance efficiency.

Description of drawings

Fig. 1 is a schematic diagram of a cable assembly in an embodiment;

Fig. 2 is a schematic partial cross-sectional view of a rotating component in different positions in one embodiment;

Fig. 3 is a schematic partial cross-sectional view of a rotating component in another embodiment when it is in a different position;

Fig. 4 is a schematic partial cross-sectional view of a rotating component in another embodiment when it is in different positions.

Detailed ways

In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

The cable assembly provided by this application can be applied to power systems such as solar energy. It can be but not limited to be applied to the secondary side connection of current transformers in photovoltaic power plants.

In one embodiment, referring to FIG. 1 , a cable assembly includes a cable 100 and a conversion device 200 . At least one end of the conversion device 200 is connected with a cable 100 . That is, the conversion device 200 may be connected to the cable 100 at one end, or may be connected to the cable 100 at both ends, or may be connected to the cable 100 at multiple ends. This application is not limited to this.

The cable 100 is used to transmit power or information from one place to another, and includes a phase wire 110 and a ground wire 120 for conducting electricity. In the same cable 100, the number of ground wires 120 is usually one or more, and the number of phase wires 110 is usually two or more, and of course it can also be one. Both the phase wire 110 and the ground wire 120 are wrapped with an insulating layer 130 . The insulating layer 130 can insulate each phase line 110 and between the phase line 110 and the ground line 120 .

In addition, the insulating layer 130 of the cable 100 may also be wrapped with a shielding layer (or armoring layer), an outer sheath layer, and the like. The shielding layer can reduce the influence of the external electromagnetic field on the power supply or communication lines, and the armor layer protects the cable from being damaged by external mechanical forces, corroded by chemical gases, etc. The outer sheath layer can play the role of insulation protection.

Referring to FIG. 2 , the conversion device 200 includes a rotating part 210 . The rotating part 210 is capable of rotating and includes a conductive sheet 211 . When the rotating member 210 is in the normal position, each phase line 110 and the ground line 120 are disconnected. When the rotating component 210 rotates to a predetermined position, the conductive sheet 211 short-circuits each phase line 110 and the ground line 120 . In this case, repairs (maintenance, replacement, testing, etc.) can be safely performed on each electrical device. A general location refers to a location other than a predetermined location.

Therefore, when using the power system using the cable assembly of the present application, it is only necessary to rotate the rotating part 210 when performing electrical equipment maintenance. Therefore, the cable assembly of the present application can greatly simplify the maintenance process of the power system, thereby improving the maintenance efficiency.

In one embodiment, referring to FIG. 1 , the conversion device 200 further includes a connector assembly 220 . The connector assembly 220 includes a first connector 221 and a second connector 222 . The second connector 222 can be plug-fitted with the first connector 221 . Specifically, the first connector 221 can be set as a socket, and the second connector 222 can be set as a plug, or the first connector 221 can be set as a plug, and the second connector 222 can be set as a socket.

The rotating component 210 is disposed on the first connector 221 . The first connector 221 can be connected to the cable 100, and can also be set on an electrical device. The second connector 222 can be connected to the cable 100 when it is disposed on an electrical device. Of course, the first connector 221 and the second connector 222 of the connector assembly 220 can also be connected to two different cables 100 respectively.

Referring to FIG. 2 , the first connector 221 (or the second connector 222 ) is provided with a phase line insert 220a and a ground insert 220b. The phase wire insert 220a is electrically connected to the corresponding phase wire 110, thereby providing power or information transmission for the phase wire. The ground plug 220b is electrically connected to the ground wire 120, so that the ground wire 120 can be connected to a corresponding ground terminal, so as to perform ground protection. Each phase line plug 220a and grounding plug 220b may be provided with numbers or letters, etc., so as to facilitate wiring and maintenance.

Specifically, the phase line insert 220a and the grounding insert 220b can be set as conductive pins, or the phase line insert 220a and the grounding insert 200b can be set as conductive pins.

When the first connector 221 is mated with the second connector 222, and the rotating part 210 is rotated to a predetermined position, the conductive piece 211 of the rotating part 210 connects the phase line insert 220a and the grounding insert 220b, and then can realize the power system. Each phase wire 110 of each cable 100 is short-circuited with the ground wire 120 .

At the same time, the present embodiment greatly simplifies the wiring and dismounting process of the cable 100 by providing the connector assembly 220 . The wiring process only needs to insert the first connector 221 and the second connector 222 of the connector assembly 220, and the unwiring process only needs to connect the first connector 221 and the second connector 222 of the connector assembly 220 to each other. Just unplug it. Therefore, this embodiment can effectively improve the efficiency of wiring and disconnection. Moreover, the connector assembly 220 can effectively improve the electrical connection reliability of the power system.

Certainly, in the embodiment of the present application, the arrangement manner of the rotating member 210 may also be different from the foregoing manner. For example, the conversion device 200 may also not include the connector assembly 220 , which may be an electrical connector for fixedly connecting two cables 100 or fixedly connecting the cable 100 with an electrical device. At this time, the rotating component 210 is not disposed on the movably connected connector assembly 220 , but is disposed on a fixedly connected electrical connector.

In one embodiment, with continued reference to FIG. 2 , the conversion device 200 further includes a connector assembly 220 . Meanwhile, the rotating component 210 also includes a conductive cylinder 212 . The conductive cylinder 212 is used to be socketed on the ground plug 220b, and then electrically connected to the ground wire 120 .

It should be noted here that the conductive cylinder 212 can always be socketed on the grounding insert 220b, at this time, the rotating component 210 and the grounding insert 220b can both be disposed on the same first connector 221 . Alternatively, the conductive cylinder 212 can also be sleeved on the grounding insert 220b when the first connector 221 and the second connector 222 are mated. At this time, the rotating part 210 can be designed to be arranged on the first The plug-in 220b is disposed on the second connector 222 .

The conductive sheet 211 is connected to the conductive cylinder 212 , and can be electrically connected to the ground plug 220 b through the conductive cylinder 212 . At this time, when the rotating component 210 rotates to a predetermined position, only need to connect the other end of the conductive piece 211 to the phase wire insert 220a, and the short circuit between the phase wire 110 and the ground wire 120 can be realized simply and effectively.

Specifically, referring to FIG. 2 , three phase wires 110 and one ground wire 120 may be provided on the same cable 100 . That is, the cable 100 is a three-phase four-wire cable. The corresponding connector assembly 220 is provided with three phase plugs 220a and one ground plug 220b. At this time, one conductive cylinder 212 socketed on the ground plug 220 b and three conductive sheets 211 connected to the conductive cylinder 212 are provided.

Alternatively, referring to FIG. 3 , two phase wires 110 and two ground wires 120 may be provided on the same cable 100 . That is, the cable 100 is a two-phase four-wire cable. The corresponding connector assembly 220 is provided with two phase plugs 220a and two ground plugs 220b. Each phase line plug 220 a corresponds to a ground plug 220 b to form a group of plug combinations, and each group of plug combinations is insulated and isolated by an insulating partition 223 on the connector assembly 220 . At this time, two conductive cylinders 212 may be set to be respectively sleeved on the two grounding inserts 220b, and each conductive cylinder 212 is connected to a conductive piece 211 respectively.

Alternatively, referring to FIG. 4 , three phase wires 110 and three ground wires 120 may be provided on the same cable 100 . That is, the cable 100 is a three-phase six-wire cable. The corresponding connector assembly 220 is provided with three phase plugs 220a and three ground plugs 220b. Each phase line plug 220 a corresponds to a ground plug 220 b to form a group of plug combinations, and each group of plug combinations is insulated and isolated by an insulating partition 223 on the connector assembly 220 . At this time, three conductive cylinders 212 may be set to be respectively sleeved on the three grounding inserts 220b, and each conductive cylinder 212 is connected to one conductive sheet 211 .

In addition, referring to FIG. 1 , in order to facilitate rotation, the rotating part 210 may also include an insulating part 213, the insulating part 213 is arranged on the first connector 221, and the conductive cylinder 212 is fixed on the insulating part 213, so that the insulating part 213 can be conveniently rotated manually. The portion 213 is used to make the conductive cylinder 212 and the conductive sheet 211 rotate together. Furthermore, a plurality of protrusions 2131 may be provided on the surface of the insulating portion 213, thereby increasing the frictional force and facilitating hand-held rotation.

Certainly, in other embodiments of the present application, the arrangement form of the conductive sheet 211 may also be different from the above manner. For example, the conductive cylinder 212 connected to the conductive sheet 211 is sleeved on each phase wire insert 220a. At this time, when the rotating member 210 rotates to a predetermined position, the other end of the conductive piece 211 connected to each conductive cylinder 212 can be connected to the ground plug 220b.

In one embodiment, referring to FIG. 1 , the first connector 221 is a socket, and the second connector 222 is a plug. The first connector 221 is provided with an elastic member 220c, and the second connector 222 is provided with a limiting hole 220d. When the first connector 221 and the second connector 222 are mated, the elastic member 220c is buckled with the limiting hole 220d. The cooperation effectively prevents the connection between the first connecting device 221 and the first connecting device 221 from being dislocated or falling off due to external force, and ensures the stability of the electrical connection of the connector assembly 220 .

Of course, when the first connector 221 is a receptacle and the second connector 222 is a plug, in order to ensure the stability of the electrical connection of the connector assembly 220, the first connector 221 may also be provided with a limiting hole 220d. The second connector 222 is provided with an elastic member 220c, and when the first connector 221 is mated with the second connector 222, the elastic member 220c is snap-fitted with the limiting hole 220d.

In one embodiment, the conversion device 200 further includes a screwing part 230 , and the screwing part 230 is rotatably connected to the second connector 222 . The outer wall of the tightening part 230 is provided with external threads. The first connector 221 includes a shielding portion 2211, and an inner wall of the shielding portion 2211 is provided with an internal thread adapted to the external thread.

After the first connector 221 is plugged into the second connector 222, the screwing part 230 rotates so that the internal thread and the external thread cooperate with each other, thereby effectively preventing the connection between the first connecting device 221 and the first connecting device 221 due to Dislocation or falling off due to external force ensures the stability of the electrical connection of the connector assembly 220 .

In one embodiment, with continued reference to FIG. 1 , the conversion device 200 further includes a fixing component 240 . The fixing component 240 is connected to the first connector 221 and used for fixing the first connector 221 . At this time, the position of the first connector 221 is fixed, which is more conducive to the stability and safety of the electrical connection. Specifically, the fixing member 240 may be provided with a fixing hole 241 , and then the fixing member 240 may be fixed by cooperating with a connecting member such as a screw through the fixing hole 241 .

In one embodiment, the first connector 221 is provided with a short circuit mark 221a. The rotating component 210 is provided with an alignment structure 210a. When the rotating component 210 rotates until the aligning structure 210 a aligns with the short-circuit mark 221 a, the phase line 110 and the ground line 120 are short-circuited.

At the same time, in this embodiment, the first connector 221 is also provided with a disconnection mark 221b. When the rotating component 210 rotates until the alignment structure 210 a aligns with the disconnection mark 221 b, the phase wire 110 and the ground wire 120 are disconnected.

In this embodiment, the first connector 221 is provided with a clear short-circuit mark 221a and an open-circuit mark 221b. Therefore, the rotation mode of the rotating part 210 can be standardized, and then it is convenient to set the circuit accurately under different circumstances, thereby ensuring the circuit connection. Reliability and safety of electricity use.

The technical features of the above embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, they should be It is considered to be within the range described in this specification.

The above-mentioned embodiments only express several implementation modes of the present application, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of protection of the patent application should be based on the appended claims.

Claims (10)

1. a kind of cable-assembly characterized by comprising

Cable, including at least one phase line and at least one ground wire, are used for transmission electric signal；

Switching device, at least one end are connected with the cable, and including rotary part, the rotary part includes conductive sheet, When the rotary part rotates to predetermined position, the conductive sheet is by each phase line and the earth short, in the rotation It is breaking between each phase line and the ground wire when component rotates to general position.

2. cable-assembly according to claim 1, which is characterized in that

The switching device further includes connector assembly, and the connector assembly includes mutually matched first connector and Two connectors, the rotary part are set on first connector；

First connector or second connector are equipped with phase line plug-in unit and ground connection plug-in unit, the phase line plug-in unit are electrically connected Corresponding phase line is connect, the ground connection plug-in unit is electrically connected the ground wire；First connector and second connector are mating, And the rotary part, when rotating to predetermined position, the conductive sheet connects the phase line plug-in unit and the ground connection plug-in unit.

3. cable-assembly according to claim 2, which is characterized in that the rotary part further includes conductive tube, described to lead For being socketed in the ground connection plug-in unit, the conductive sheet is connected on the conductive tube torch.

4. cable-assembly according to claim 3, which is characterized in that the rotary part further includes insulation division, described exhausted Edge is arranged on first connector, and the conductive tube is fixed on the insulation division.

5. cable-assembly according to claim 2, which is characterized in that the phase line plug-in unit and the ground connection plug-in unit are to lead Electric mortiser needle or the phase line plug-in unit and the ground connection plug-in unit are conductive base pin.

6. cable-assembly according to claim 2, which is characterized in that

First connector is socket, and second connector is plug, and first connector is equipped with elastic component, described Second connector be equipped with limit hole, first connector and second connector it is mating when, the elastic component with The limit hole is clasped.

7. cable-assembly according to claim 2, which is characterized in that

First connector is socket, and second connector is plug, and second connector is equipped with elastic component, described First connector be equipped with limit hole, first connector and second connector it is mating when, the elastic component with The limit hole is clasped.

8. cable-assembly according to claim 2, which is characterized in that

The switching device further includes screwing component, and the component that screws is rotatably connected on second connector, the rotation The outer wall of tight component is equipped with external screw thread；

First connector includes occlusion part, and the inner wall of the occlusion part is equipped with the internal screw thread being adapted to the external screw thread.

9. cable-assembly according to claim 2, which is characterized in that the switching device further includes fixation member, described Fixation member is connected on first connector and for fixing first connector.

10. cable-assembly according to claim 2, which is characterized in that

First connector is equipped with short circuit mark and identifies with open circuit, and the rotary part is equipped with aligning structure；When described When rotary part rotates to the aligning structure alignment short circuit mark, the conductive sheet by the phase line and the ground wire it Between short circuit, when the rotary part rotates to the aligning structure alignment open circuit mark, the conductive sheet is by the phase It is breaking between line and the ground wire.