Outdoor equipment wire clamp or abnormal conductive heating short-circuit device and use method

Abstract

The outdoor equipment wire clamp or conductive abnormal heating short-circuit device and its use method are used to solve the heating problem caused by loosening of the outdoor equipment terminal. The short-circuit device includes a short-circuit assembly and an insulating rod, the short-circuit assembly includes a short-circuit plate and a contact finger, the short-circuit plate is two parallel pieces, there is a support between the first ends of the two short-circuit plates, and the support is hinged to the short-circuit plate through a first bolt assembly, the support is used to be fixedly connected to the first conductive arm of the disconnector, there is a second bolt assembly between the second ends of the two short-circuit plates, there is a spring between the short-circuit plate and the second bolt assembly, the spring pushes the corresponding short-circuit plate toward the short-circuit plate on the other side, and one of the side walls of the short-circuit plates has a pull ring; the contact finger is fixed on the second conductive arm of the disconnector, and the first end of the insulating rod has a hook. The present invention effectively solves the problem of abnormal temperature rise caused by increased contact resistance of the contact finger by shunting.

Description

Technical Field

[0001] The invention relates to the technical field of power maintenance, in particular to an outdoor equipment line clamp or an abnormally conductive heating short-circuiting device and a use method thereof. Background Art

[0002] Due to factors such as poor material of fastening joints and poor installation process, the wiring terminals of outdoor equipment such as disconnectors are prone to loosening and increased contact surface resistance after long-term operation, generating high temperatures when powered on, and forming heating defects. Heating defects can reduce the life of the equipment at the least, or cause equipment burnout and grid fault tripping at the worst, increasing the safety risks, work intensity and asset losses of grid operation and maintenance internally, and reducing customer satisfaction with electricity consumption externally. At present, when staff conduct maintenance, they have to shut down the power supply, which affects the reliability of electricity consumption and is likely to affect user satisfaction. Summary of the invention

[0003] The object of the present invention is to provide an outdoor equipment wire clamp or an abnormal conductive heating short-circuiting device and a use method thereof, so as to solve the heating problem caused by loosening of the wiring terminals of the outdoor equipment.

[0004] The technical solution adopted by the present invention to solve its technical problems is: an outdoor equipment wire clamp or an abnormally heated conductive short-circuit device, comprising a short-circuit assembly and an insulating rod, the short-circuit assembly comprising a short-circuit plate and a contact finger, the short-circuit plate is two parallel plates, a support is provided between the first ends of the two short-circuit plates, and the support is hingedly connected to the short-circuit plate through a first bolt assembly, the support is used to be fixedly connected to the first conductive arm of the disconnector, a second bolt assembly is provided between the second ends of the two short-circuit plates, the short-circuit plate, the first bolt assembly, the second bolt assembly and the base form an integral body, a spring is provided between the short-circuit plate and the second bolt assembly, the thrust of the spring on the corresponding short-circuit plate is toward the short-circuit plate on the other side, and a side wall of one of the short-circuit plates has a pull ring; the contact finger is fixed on the second conductive arm of the disconnector, the first end of the insulating rod has a hook, after holding the second end of the insulating rod to hook the hook to the pull ring, the insulating rod is moved to separate the two short-circuit plates from the contact finger to disconnect the short-circuit, or the contact finger is extended between the two short-circuit plates to achieve short-circuit after closing.

[0005] Furthermore, a conductive connector is fixedly connected to the support, and the support is electrically connected to the first conductive arm of the disconnector through the conductive connector.

[0006] Furthermore, an insulating spacer is fixed to one end of the conductive connector away from the second conductive arm, and when the switch is opened, the short-circuit board is flipped 180 degrees so that the short-circuit board contacts the insulating spacer.

[0007] Furthermore, the insulating spacer has a groove, and the short-circuit board extends into the groove after being flipped 180 degrees.

[0008] Furthermore, the contact finger is an L-shaped structure, the horizontal part of the contact finger is the contact finger mounting end, the contact finger mounting end is fixedly connected to the second conductive arm by a bolt, and the vertical part of the contact finger is used to contact the short-circuit board to achieve closing.

[0009] Furthermore, at least one third bolt assembly is provided between the first bolt assembly and the second bolt assembly, and the third bolt assembly fixes and connects the two short-circuit plates together.

[0010] The present invention also provides a method for using an outdoor equipment wire clamp or a conductive abnormal heating short-circuit device, comprising the following steps: S1. Before short-circuiting, first close the outdoor switchgear; S2, when short-circuiting, hold the insulating rod and hook the hook on the pull ring, move the insulating rod to make the short-circuit board flip 180 degrees, and then the contact finger is inserted between the two short-circuit boards to close the circuit breaker, i.e. short-circuit; S3, before disconnecting the short circuit, hold the insulating rod and hook the hook on the pull ring, move the insulating rod to make the short circuit board flip 180 degrees in the opposite direction, at this time, the short circuit board is separated from the contact finger and the short circuit is disconnected, and the short circuit board is placed on the insulating pad and in contact with the insulating pad; S4. Disconnect the outdoor switchgear.

[0011] The beneficial effects of the present invention are: the structure of the present invention is small in size, light in weight, flexible and convenient to operate, and can provide a stable clamping force to the contact fingers by relying on the spring, with stable flow, and can effectively solve the problem of abnormal temperature rise and overheating caused by increased contact resistance of the contact fingers through current diversion. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 One of the three-dimensional diagrams of the short-circuit assembly of the present invention; Figure 2 The second three-dimensional diagram of the short-circuit assembly of the present invention; Figure 3 It is a front view of the short-circuit assembly of the present invention; Figure 4 is a top view of the short-circuit assembly of the present invention; Figure 5 A three-dimensional diagram of the short-circuit assembly of the present invention used on a disconnector; Figure 6 It is a front view of the short-circuit assembly of the present invention used on the isolating switch; Figure 7 for Figure 5 A local enlarged view of point A in FIG. Figure 8 A schematic diagram of disconnecting the short-circuit device; In the figure: 1 short-circuit board, 2 support, 3 first bolt assembly, 3' first bolt assembly, 3" second bolt assembly, 4 spring, 5 contact finger, 51 contact finger mounting end, 6 pull ring, 7 isolating switch, 71 first conductive arm, 72 second conductive arm, 8 insulating rod, 81 hook, 9 conductive connector, 91 insulating spacer, 92 groove. DETAILED DESCRIPTION

[0013] like Figures 1 to 8 As shown, the outdoor equipment wire clamp or abnormal conductive heating short-circuit device of the present invention includes a short-circuit assembly and an insulating rod 8. The structure, working principle and use method of the present invention are described in detail below in conjunction with the accompanying drawings.

[0014] like Figures 1 to 7 As shown, the outdoor equipment wire clamp or the abnormal conductive heating short-circuit device includes a short-circuit assembly and an insulating rod 8, such as Figures 1 to 4 As shown, the short-circuit assembly includes a short-circuit plate 1 and a contact finger 5. The short-circuit plates 1 are two parallel plates. A support 2 is provided between the first ends of the two short-circuit plates 1. The support 2 is hingedly connected to the short-circuit plates 1 through a first bolt assembly 3. Figures 5 to 7 As shown, the support 2 is used to be fixedly connected with the first conductive arm 71 of the disconnector 7, and a second bolt assembly 3' is provided between the second ends of the two short-circuit plates 1. The short-circuit plates 1, the first bolt assembly 3, the second bolt assembly 3' and the base 2 form a whole. The screw of the second bolt assembly 3' passes through the second ends of the two short-circuit plates 1, and the length of the screw of the second bolt assembly 3' is greater than the distance between the two short-circuit plates 1. The two short-circuit plates 1 are located between the nut cap and the nut of the screw of the second bolt assembly 3'. A spring 4 is provided between one of the short-circuit plates 1 and the second bolt assembly 3'. The spring 4 is loosely sleeved on the screw of the second bolt assembly 3', and the first end of the spring 4 contacts the short-circuit plate 1, and the second end of the spring 4 contacts the nut of the second bolt assembly 3', so that the thrust of the spring on the corresponding short-circuit plate 1 is directed toward the short-circuit plate 1 on the other side. Under the action of the spring 4, the distance between the second ends of the two short-circuit plates 1 is the shortest, and then after the contact finger 5 is inserted between the second ends of the two short-circuit plates 1, a certain pressing force is ensured between the contact finger 5 and the short-circuit plate 1. A spring 4 may also be provided between the other short-circuit plate 1 and the second bolt assembly 3', one end of the spring 4 being in contact with the other short-circuit plate 1, and the other end of the spring 4 being in contact with the nut of the screw rod of the second bolt assembly 3', and the thrust of the spring 4 on the other short-circuit plate 1 is directed toward the short-circuit plate 1 on the opposite side.

[0015] The side wall of one of the short-circuit boards 1 has a pull ring 6, and the contact finger 5 is fixed on the second conductive arm 72 of the disconnector 7. The first end of the insulating rod 8 has a hook 81. After the hook 81 is hooked on the pull ring 6 by holding the second end of the insulating rod 8, the movable insulating rod 8 separates the two short-circuit boards 1 from the contact finger 5 to achieve opening, or allows the contact finger 5 to extend between the two short-circuit boards 1 to achieve closing.

[0016] To achieve electrical connection between the support 2 and the first conductive arm 71, as Figure 6 and Figure 7 As shown, a conductive connector 9 is fixedly connected to the support 2, and the support 2 is electrically connected to the first conductive arm 71 of the disconnector 7 through the conductive connector 9. An insulating pad 91 is fixed to the end of the conductive connector 9 that is away from the second conductive arm 72. When the short-circuit board 1 is turned over 180 degrees during the opening, the short-circuit board 1 contacts the insulating pad 91, and the insulating pad 91 supports the short-circuit board 1. Two grooves 92 are provided on the insulating pad 9, and the short-circuit board 1 extends into the corresponding grooves 92 after turning over 180 degrees, and the grooves 92 limit the short-circuit board 1.

[0017] like Figures 1 to 3 As shown, the contact finger 5 is an L-shaped structure, the horizontal part of the contact finger 5 is the contact finger mounting end 51, the contact finger mounting end 51 is fixedly connected to the second conductive arm 72 by bolts, and the vertical part of the contact finger 5 is used to contact the short-circuit board 1 to achieve closing.

[0018] To ensure the overall structural strength, at least one third bolt assembly 3" is provided between the first bolt assembly 3 and the second bolt assembly 3', and the screw and nut of the third bolt assembly 3" fix the two short-circuit plates 1 together. In the embodiment of the present invention, two third bolt assemblies 3" are provided between the first bolt assembly 3 and the second bolt assembly 3'.

[0019] The working principle of the present invention is as follows: two short-circuit plates 1, a first bolt assembly 3, a support 2 and a second bolt assembly 3' constitute a short-circuit main body, wherein the support 2 is fixedly connected to the first conductive arm 71, and the short-circuit plate 1 is hingedly connected to the support 2, so that the short-circuit plate 1 can rotate relative to the first conductive arm 7. After the short-circuit plate 1 is rotated so that the short-circuit plate 1 flips 180 degrees, the vertical part of the contact finger 5 is inserted between the second ends of the two short-circuit plates 1, and under the action of the spring 4, the two short-circuit plates 1 cooperate to clamp the contact finger 5 to achieve closing.

[0020] The method for using the outdoor equipment wire clamp or the conductive abnormal heating short-circuit device of the present invention comprises the following steps: S1. Before short-circuiting, first close the outdoor switchgear; S2, when short-circuiting, hold the insulating rod 8 and hook the hook 81 onto the pull ring 6. Figure 6 , Figure 7 As shown, the movable insulating rod 8 causes the short-circuit board 1 to flip 180 degrees, and the contact finger 5 is inserted between the two short-circuit boards 1 to achieve closing, i.e. short-circuiting; S3. Before disconnecting the short circuit, hold the insulating rod 8 and hook the hook 81 onto the pull ring 6. Figure 8As shown, the movable insulating rod 8 causes the short-circuit board 1 to flip 180 degrees in the opposite direction. At this time, the short-circuit board 1 is separated from the contact finger 5 to disconnect the short circuit, and the short-circuit board 1 is placed on the insulating spacer 91 and contacts the insulating spacer 91; S4. Disconnect the outdoor switchgear.

[0021] The structure of the present invention is small in size, light in weight, and flexible and convenient to operate. The spring can provide a stable clamping force to the contact finger, the flow is stable, and the abnormal overheating problem caused by the increase in the contact resistance of the contact finger can be effectively solved by shunting.

Claims

1. Outdoor equipment wire clamp or abnormal conductive heating short-circuit device, characterized in that: The invention comprises a short-circuit assembly and an insulating rod, wherein the short-circuit assembly comprises a short-circuit plate and a contact finger, wherein the short-circuit plates are two parallel plates, a support is provided between the first ends of the two short-circuit plates, and the support is hingedly connected to the short-circuit plate through a first bolt assembly, and the support is used to be fixedly connected to the first conductive arm of the disconnector, a second bolt assembly is provided between the second ends of the two short-circuit plates, the short-circuit plates, the first bolt assembly, the second bolt assembly and the base form a whole, a spring is provided between the short-circuit plates and the second bolt assembly, and the thrust of the spring on the corresponding short-circuit plate is toward the short-circuit plate on the other side, and a side wall of one of the short-circuit plates is provided with a pull ring; the contact finger is fixed on the second conductive arm of the disconnector, and the first end of the insulating rod is provided with a hook, and after holding the second end of the insulating rod to hook the hook to the pull ring, the insulating rod is moved to separate the two short-circuit plates from the contact finger to disconnect the short-circuit, or the contact finger is extended between the two short-circuit plates to achieve short-circuit after closing the switch.

2. The outdoor equipment wire clamp or abnormal conductive heating short-circuit device according to claim 1, characterized in that: A conductive connector is fixedly connected to the support, and the support is electrically connected to the first conductive arm of the disconnector through the conductive connector.

3. The outdoor equipment wire clamp or abnormal conductive heating short-circuit device according to claim 2, characterized in that: An insulating pad is fixed to the end of the conductive connector away from the second conductive arm. When the switch is opened, the short-circuit board is turned over 180 degrees and then contacts the insulating pad.

4. The outdoor equipment wire clamp or the abnormal conductive heating short-circuit device according to claim 3, characterized in that: The insulating spacer is provided with a groove, and the short-circuit board extends into the groove after being turned over 180 degrees.

5. The outdoor equipment wire clamp or the abnormal conductive heating short-circuit device according to claim 4, characterized in that: The contact finger is an L-shaped structure, the horizontal part of the contact finger is the contact finger mounting end, the contact finger mounting end is fixedly connected to the second conductive arm by a bolt, and the vertical part of the contact finger is used to contact the short-circuit board to realize closing.

6. The outdoor equipment wire clamp or abnormal conductive heating short-circuit device according to claim 5, characterized in that: At least one third bolt assembly is provided between the first bolt assembly and the second bolt assembly, and the third bolt assembly fixes and connects the two short-circuit plates together.

7. The method for using the outdoor equipment wire clamp or the conductive abnormal heating short-circuit device according to claim 6, characterized in that: The following steps are involved: S1. Before short-circuiting, first close the outdoor switchgear; S2, when short-circuiting, hold the insulating rod and hook the hook on the pull ring, move the insulating rod to make the short-circuit board flip 180 degrees, and then the contact finger is inserted between the two short-circuit boards to close the circuit breaker, i.e. short-circuit; S3, before disconnecting the short circuit, hold the insulating rod and hook the hook on the pull ring, move the insulating rod to make the short circuit board flip 180 degrees in the opposite direction, at this time, the short circuit board is separated from the contact finger and the short circuit is disconnected, and the short circuit board is placed on the insulating pad and in contact with the insulating pad; S4. Disconnect the outdoor switchgear.

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