Wiring device and large current generator

Abstract

The invention discloses a wiring device and a large current generator, the wiring device is used for electrically connecting the large current generator with a to-be-tested device, and a clamping assembly of the wiring device comprises a hook-shaped structure and two arc-shaped clamping pieces which are arranged on the inner side wall of the hook-shaped structure and can be close to each other oppositely or away from each other oppositely; the hook-shaped structure is connected with the telescopic rod assembly, one end of the wire harness assembly is arranged on the hook-shaped structure, and the other end of the wire harness assembly is connected with the large-current generator. The wiring device solves the wiring problem of bus protection and high-altitude current transformer transformation ratio testing in a transformer substation primary system, the climbing time is saved, the climbing danger is reduced, personnel allocation is reduced, time is saved, and the operation efficiency is improved; the wiring device can also be applied to a current transformer transformation ratio test in a switch cabinet, the telescopic sleeve can be detached during specific application, and the test can be completed by using the clamping assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of power equipment, and particularly relates to a wiring device and a large current generator. Background Art

[0002] During the calibration of the current transformer ratio, for the wiring connected to the inner side of the switch cabinet, the connecting wire usually used is a copper wire and a wiring clip. The wiring between the primary bus and the current transformer above 35 kV is often very high. It is necessary to climb an insulating ladder or wear a safety belt to climb high to connect the output wiring of the ordinary large current generator to the equipment to be tested. Climbing high is time-consuming and laborious. Mainly, the climbing process is prone to danger and the operation is not safe. Summary of the Invention

[0003] The purpose of the present invention is to provide a wiring device and a large current generator, aiming to solve the technical problems of time-consuming and laborious caused by climbing high during the existing current transformer calibration process, and the danger and unsafe operation prone to occur during the climbing process.

[0004] To solve the above problems, according to one aspect of the present application, an embodiment of the present invention provides a wiring device for electrically connecting a large current generator and a device to be tested. The wiring device includes a clamping assembly, a telescopic rod assembly, and a wire harness assembly. The clamping assembly includes a hook-shaped structure and two arc-shaped clamping pieces arranged on the inner side wall of the hook-shaped structure and capable of approaching or separating from each other. The hook-shaped structure is connected to the telescopic rod assembly. One end of the wire harness assembly is arranged on the hook-shaped structure, and the other end is connected to the large current generator;

[0005] Wherein, the mouths of the two arc-shaped clamping pieces face away from each other.

[0006] In some embodiments, the tangent planes formed by connecting the two ends of each arc-shaped clamping piece are perpendicular to the axis of the telescopic rod assembly.

[0007] In some embodiments, the clamping assembly further includes two elastic members. The two elastic members are respectively clamped between the two arc-shaped clamping pieces and the inner side wall of the hook-shaped structure, and the two elastic members are located on the side where the two arc-shaped clamping pieces face away from each other. The telescopic direction of the elastic member is the same as the moving direction of the arc-shaped clamping piece; and / or,

[0008] The clamping assembly further includes two guide rods. The hook-shaped structure is provided with two guide holes penetrating along the moving direction of the arc-shaped clamping piece. The two guide holes are located on the side where the two arc-shaped clamping pieces face away from each other. The two guide rods are respectively inserted into the two guide holes and are connected to the two arc-shaped clamping pieces in a one-to-one correspondence.

[0009] In some embodiments, the clamping assembly has a first hollow channel, the telescopic rod assembly has a second hollow channel, the first hollow channel communicates with the second hollow channel, the hook-shaped structure has a first through hole penetrating from inside the first hollow channel to the inner side wall of the hook-shaped structure, the wire harness assembly is disposed inside the first hollow channel and the second hollow channel, one end of the wire harness assembly extends out from the first through hole, and the other end extends out from the opening of the second hollow channel away from the first hollow channel and is connected to the high-current generator.

[0010] In some embodiments, the clamping assembly further includes a terminal post, the terminal post is disposed on the inner side wall of the hook-shaped structure and between the two arc-shaped clamping pieces, and one end of the wire harness assembly is connected to the terminal post.

[0011] In some embodiments, the telescopic rod assembly includes at least two hollow tubes and a locking ring disposed at the connection of the two hollow tubes. The locking ring has a screwing section spirally sleeved outside the outer hollow tube and a constricted section formed at one end of the screwing section. The outer hollow tube has a shrinkage seam, and along the axial direction away from the screwing section, the inner diameter of the constricted section gradually decreases.

[0012] In some embodiments, one end of the hook-shaped structure is inserted into the hollow tube, a locking ring is disposed between the hook-shaped structure and the hollow tube, and the hook-shaped structure or the hollow tube has a shrinkage seam.

[0013] In some embodiments, the wire harness assembly includes at least two wire harness units connected in sequence. One of the wire harness units on both sides of the first and last ones is connected to the high-current generator, and the other is connected to the terminal post. One end of an adjacent two wire harness units is provided with a terminal post with an external thread, and the other end is provided with a connection sleeve with an internal thread, and the terminal post is screwed with the connection sleeve.

[0014] In some embodiments, the wiring device further includes a handle and a bottom cover. The handle is a hollow structure with openings at both ends. The handle is inserted into the end of the telescopic rod assembly away from the hook-shaped structure. The handle is made of an insulating material. The bottom cover is disposed at the opening of the handle away from the hook-shaped structure, and a second through hole for the wire harness assembly to pass through is formed on the bottom cover.

[0015] According to another aspect of the present application, an embodiment of the present invention further provides a high-current generator, and the high-current generator includes the wiring device as described above.

[0016] Compared with the prior art, the wiring device of the present invention has at least the following beneficial effects:

[0017] Embodiments of the present invention disclose a wiring device and a high-current generator. The wiring device is used to electrically connect the high-current generator to a device to be tested. The wiring device of the present invention includes a clamping assembly, a telescopic rod assembly, and a wire harness assembly. The clamping assembly includes a hook-shaped structure and two arc-shaped clamping pieces arranged on the inner side wall of the hook-shaped structure and capable of approaching each other or moving away from each other. The hook-shaped structure can be made of a conductive material and can be a U-shaped structure. The two arc-shaped clamping pieces are arranged on the inner side walls of two parallel parts of the U-shaped structure. The hook-shaped structure is connected to the telescopic rod assembly. One of the two parallel parts of the U-shaped structure can be connected to the telescopic rod assembly. One end of the wire harness assembly is arranged on the hook-shaped structure, and the other end is connected to the high-current generator. The height of the hook-shaped structure of the clamping assembly can be adjusted through the telescopic rod assembly, and then the hook-shaped structure can be hung on the wire harness of the test device. Since the mouths of the two arc-shaped clamping pieces face away from each other and the two arc-shaped clamping pieces can approach each other or move away from each other, when the wire harness of the test device passes through the two arc-shaped clamping pieces, the two arc-shaped clamping pieces are squeezed, so that the wire harness of the device to be detected is placed at the upper ends of the two arc-shaped clamping pieces and contacts the inner wall of the hook-shaped structure, so that the hook-shaped structure is stably hung on the wire harness of the test device, and the wire harness assembly electrically connects the high-current generator and the test device. When removing, lift the telescopic rod assembly, and the two arc-shaped clamping pieces are squeezed again. The clamping and removing methods are the same.

[0018] The wiring device of the present invention solves the wiring problems of bus protection and testing the transformation ratio of high-current current transformers in the primary system of a substation, saves the time of climbing heights, reduces the danger of climbing heights, reduces the personnel configuration, saves time, and improves the operation efficiency. The wiring device of the present invention can also be applied to the current transformer transformation ratio test in a switchgear cabinet. When specifically applied, the telescopic sleeve can be removed, and the clamping assembly can be used to complete it.

[0019] The above description is only an overview of the technical solution of the present invention. In order to be able to understand the technical means of the present invention more clearly and implement it according to the content of the specification, the following takes the preferred embodiments of the present invention and describes them in detail in conjunction with the drawings as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a schematic structural diagram of the wiring device provided by the embodiment of the present invention;

[0022] Figure 2 For Figure 1Enlarged view of location A;

[0023] Figure 3 Schematic structural view of the clamping assembly of the wiring device provided by an embodiment of the present invention;

[0024] Figure 4 is Figure 3 Enlarged view of location B;

[0025] Figure 5 Schematic structural view of the telescopic rod assembly of the wiring device provided by an embodiment of the present invention.

[0026] Explanation of reference numerals:

[0027] 11, hook-shaped structure; 111, first hollow channel; 12, arc-shaped clamping piece; 13, elastic member; 14, guide rod; 15, wiring terminal post;

[0028] 21, hollow tube; 211, second hollow channel; 212, shrinkage joint; 22, locking ring; 221, screwing section; 222, necking section;

[0029] 31, wire harness unit; 311, wiring post; 312, wiring sleeve;

[0030] 41, handle;

[0031] 51, bottom cover. Detailed implementation manners

[0032] To further elaborate on the technical means and effects adopted by the present invention to achieve the intended invention purpose, the following combines the accompanying drawings and preferred embodiments to detail the specific implementation manners, structures, features, and their effects of the application according to the present invention. In the following description, different "one embodiment" or "embodiment" do not necessarily refer to the same embodiment. In addition, the specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0033] In the description of the present invention, it should be clear that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence; the terms "vertical", "lateral", "longitudinal", "front", "rear", "left", "right", "up", "down", "horizontal", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention, rather than meaning that the indicated device or element must have a specific orientation or position, so it cannot be understood as a limitation to the present invention.

[0034] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Embodiment 1

[0036] As Figures 1 - 5 shown, an embodiment of the present invention provides a wiring device for electrically connecting a large current generator to a device to be tested. The wiring device includes a clamping assembly, a telescopic rod assembly, and a wire harness assembly. The clamping assembly includes a hook-shaped structure 11 and two arc-shaped clamping pieces 12 disposed on the inner side wall of the hook-shaped structure 11 and capable of approaching or separating from each other. The hook-shaped structure 11 is connected to the telescopic rod assembly. One end of the wire harness assembly is disposed on the hook-shaped structure 11, and the other end is connected to the large current generator;

[0037] wherein, the mouths of the two arc-shaped clamping pieces 12 face away from each other.

[0038] In this embodiment, the wiring device is used to electrically connect a large current generator to a device to be tested. The wiring device of this embodiment includes a clamping assembly, a telescopic rod assembly, and a wire harness assembly. The clamping assembly includes a hook-shaped structure 11 and two arc-shaped clamping pieces 12 disposed on the inner side wall of the hook-shaped structure 11 and capable of approaching or separating from each other. The hook-shaped structure 11 can be made of a conductive material, and the hook-shaped structure 11 can be a U-shaped structure. The two arc-shaped clamping pieces 12 are disposed on the inner side walls of two parallel parts of the U-shaped structure. The hook-shaped structure 11 is connected to the telescopic rod assembly. One of the two parallel parts of the U-shaped structure can be connected to the telescopic rod assembly. One end of the wire harness assembly is disposed on the hook-shaped structure 11, and the other end is connected to the large current generator. The height of the hook-shaped structure 11 of the clamping assembly can be adjusted through the telescopic rod assembly, and then the hook-shaped structure 11 can be hung on the wire harness of the test device. Since the mouths of the two arc-shaped clamping pieces 12 face away from each other, and the two arc-shaped clamping pieces 12 can approach or separate from each other, when the wire harness of the test device passes through the two arc-shaped clamping pieces 12, the two arc-shaped clamping pieces 12 are squeezed, so that the wire harness of the device to be detected is placed at the upper ends of the two arc-shaped clamping pieces 12 and contacts the inner wall of the hook-shaped structure 11, so that the hook-shaped structure 11 is stably hung on the wire harness of the test device, and the wire harness assembly electrically connects the large current generator to the test device. When removing, the telescopic rod assembly is lifted upwards, and the two arc-shaped clamping pieces 12 are squeezed again. The clamping and removing methods are the same.

[0039] The wiring device of this embodiment solves the wiring problems of busbar protection and testing the current transformer ratio at high places in the primary system of the substation, saves the time of climbing, reduces the risk of climbing, reduces the allocation of personnel, saves time, and improves the operation efficiency; the wiring device of this embodiment can also be used in the current transformer ratio test in the switch cabinet. In specific applications, the telescopic sleeve can be removed and the clamping assembly can be used to complete the test.

[0040] In some embodiments, the cross-section formed by connecting the two ends of each arc-shaped clip 12 is perpendicular to the axis of the telescopic rod assembly, ensuring that the wiring harness of the device to be tested can pass through the two arc-shaped clips 12 smoothly and be placed at the upper ends of the two arc-shaped clips 12.

[0041] In some embodiments, the clamping assembly further includes two elastic members 13, which are respectively clamped between the two arc-shaped clips 12 and the inner side wall of the hook-shaped structure 11, and the two elastic members 13 are located on the side away from the two arc-shaped clips 12, and the expansion and contraction direction of the elastic members 13 is consistent with the moving direction of the arc-shaped clips 12. The two elastic members 13 can make the two arc-shaped clips 12 move closer to each other or move away from each other.

[0042] In some embodiments, the clamping assembly also includes two guide rods 14, the hook-shaped structure 11 is provided with two guide holes penetrating along the moving direction of the arc-shaped clamping piece 12, the two guide holes are located on the side away from the two arc-shaped clamping pieces 12, and the two guide rods 14 are respectively inserted into the two guide holes and are connected to the two arc-shaped clamping pieces 12 one by one.

[0043] In this embodiment, two guide rods 14 are used to guide the two arc-shaped clips 12 in the direction of approaching each other or moving away from each other.

[0044] In some embodiments, the clamping assembly has a first hollow channel 111, the telescopic rod assembly has a second hollow channel 211, the first hollow channel 111 is connected to the second hollow channel 211, the hook-shaped structure 11 has a first through hole penetrating from the first hollow channel 111 to the inner wall of the hook-shaped structure 11, the wiring harness assembly is penetrated through the first hollow channel 111 and the second hollow channel 211, one end of the wiring harness assembly extends from the first through hole, and the other end extends from the second hollow channel 211 away from the mouth of the first hollow channel 111, and is connected to the high current generator.

[0045] When conducting tests on the bus protection and current transformers of the primary system of a substation, it is all at heights. At this time, the connecting wire of the large current generator is passed through the first hollow channel 111 of the clamping assembly and the second hollow channel 211 of the telescopic rod assembly to connect the equipment to be tested. The structure of this embodiment prevents the outgoing wire from swaying randomly in windy weather, accidentally touching the energized equipment, causing serious consequences, saves the time of climbing heights, reduces the danger of climbing heights, reduces the personnel configuration, saves time, and improves the operation efficiency.

[0046] The telescopic rod assembly can be made of insulating material or an insulating bracket is provided in the second hollow channel 211 so that the wire harness assembly does not contact the telescopic rod assembly.

[0047] In some embodiments, the clamping assembly further includes a wiring terminal post 15. The wiring terminal post 15 is arranged on the inner side wall of the hook-shaped structure 11, between the two arc-shaped clamping pieces 12, and one end of the wire harness assembly is connected to the wiring terminal post 15. A triangular support structure is formed for the wire harness of the equipment to be tested by the wiring terminal post 15 and the two arc-shaped clamping pieces 12, so that the wire harness of the equipment to be tested is clamped more stably, and at the same time, the reliability of current conduction is ensured.

[0048] In some embodiments, the telescopic rod assembly includes at least two sections of hollow tubes 21 and a locking ring 22 arranged at the connection of the two hollow tubes 21. The telescopic rod assembly includes at least two sections of hollow tubes 21 and a locking ring 22 arranged at the connection of the two hollow tubes 21. The locking ring 22 has a screwing section 221 spirally sleeved outside the outer hollow tube 21 and a constricted section 222 constructed at one end of the screwing section 221. The outer hollow tube 21 has a shrinkage seam 212. Along the axial direction away from the screwing section 221, the inner diameter of the constricted section 222 gradually decreases. In the structure of this embodiment, when the locking ring 22 is rotated, the screwing section 221 can make the locking ring 22 move along the axis, and the constricted section 222 can press the outer hollow tube 21, so that the shrinkage seam 212 decreases. After the outer hollow tube 21 is compressed, it abuts and locks with the inner hollow tube 21, realizing the locking of two adjacent hollow tubes 21. The unlocking process is to rotate the locking ring 22 in the opposite direction. After unlocking, the telescopic lengths of the two hollow tubes 21 can be adjusted to realize the telescoping of the telescopic rod assembly.

[0049] In some embodiments, one end of the hook-shaped structure 11 is inserted into the hollow tube 21, and the locking ring 22 is arranged between the hook-shaped structure 11 and the hollow tube 21. The hook-shaped structure 11 or the hollow tube has a shrinkage seam 212.

[0050] In some embodiments, the wire harness assembly includes at least two wire harness units 31 connected in sequence. The specific form of the wire harness unit 31 can be determined according to the telescoping of the telescopic rod assembly. By connecting the wire harness units 31, it is possible to avoid the wire harness assembly being too long or too short. One of the wire harness units 31 on both sides of the first position is connected to the high-current generator, and the other is connected to the terminal post 15. One end of an adjacent two wire harness units 31 is provided with a terminal post 311 with an external thread, and the other end is provided with a terminal sleeve 312 with an internal thread, and the terminal post 311 is screwed with the terminal sleeve 312. In this embodiment, through the threaded engagement of the terminal post 311 and the terminal sleeve 312, the quick connection and disassembly of two adjacent wire harness units 31 are realized.

[0051] In some embodiments, the wiring device further includes a handle 41 and a bottom cover 51. The handle 41 is a hollow structure with openings at both ends. The handle 41 is inserted into the end of the telescopic rod assembly away from the hook-like structure 11. The handle 41 is made of an insulating material to prevent electric shock to the staff. The bottom cover 51 is arranged at the opening of the handle 41 away from the hook-like structure 11, and a second through hole for the wire harness assembly to pass through is provided on the bottom cover 51. The bottom cover 51 can prevent foreign objects and the like from entering the telescopic rod assembly.

[0052] Embodiment 2

[0053] An embodiment of the present invention further provides a high-current generator, and the high-current generator includes the wiring device described in Embodiment 1.

[0054] Those skilled in the art can clearly understand that for the sake of convenience and brevity of description, the specific working processes of the above-described devices, apparatuses, and units can refer to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0055] The above is only the specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A wiring device for electrically connecting a high-current generator to a device to be tested, characterized in that, The wiring device includes a clamping assembly, a telescopic rod assembly, and a wiring harness assembly. The clamping assembly includes a hook-shaped structure (11) and two arc-shaped clamping pieces (12) disposed on the inner sidewall of the hook-shaped structure (11) and capable of approaching each other or moving away from each other. The hook-shaped structure (11) is connected to the telescopic rod assembly. One end of the wiring harness assembly is disposed on the hook-shaped structure (11), and the other end is connected to the high-current generator. Wherein, the mouths of the two arc-shaped clamping pieces (12) face away from each other.

2. The wiring device according to claim 1, characterized in that, The chord planes formed by connecting the two ends of each arc-shaped clamping piece (12) are all perpendicular to the axis of the telescopic rod assembly.

3. The wiring device according to claim 1, characterized in that, The clamping assembly further includes two elastic members (13). The two elastic members (13) are respectively clamped between the two arc-shaped clamping pieces (12) and the inner sidewall of the hook-shaped structure (11), and the two elastic members (13) are located on the side where the two arc-shaped clamping pieces (12) move away from each other. The telescopic direction of the elastic member (13) is the same as the moving direction of the arc-shaped clamping piece (12); and / or, The clamping assembly further includes two guide rods (14). The hook-shaped structure (11) is provided with two guide holes penetrating along the moving direction of the arc-shaped clamping piece (12). The two guide holes are located on the side where the two arc-shaped clamping pieces (12) move away from each other. The two guide rods (14) are respectively inserted into the two guide holes and are connected to the two arc-shaped clamping pieces (12) in one-to-one correspondence.

4. The wiring device according to claim 1, characterized in that, The clamping assembly has a first hollow channel (111), and the telescopic rod assembly has a second hollow channel (211). The first hollow channel (111) is communicated with the second hollow channel (211). The hook-shaped structure (11) has a first through hole penetrating from the inside of the first hollow channel (111) to the inner sidewall of the hook-shaped structure (11). The wiring harness assembly is inserted into the first hollow channel (111) and the second hollow channel (211). One end of the wiring harness assembly extends out from the first through hole, and the other end extends out from the mouth of the second hollow channel (211) far from the first hollow channel (111) and is connected to the high-current generator.

5. The wiring device according to claim 4, characterized in that, The clamping assembly further includes a wiring terminal post (15). The wiring terminal post (15) is disposed on the inner sidewall of the hook-shaped structure (11) and is located between the two arc-shaped clamping pieces (12). One end of the wiring harness assembly is connected to the wiring terminal post (15).

6. The wiring device according to claim 5, characterized in that, The telescopic rod assembly includes at least two sections of hollow tubes (21) and a locking ring (22) disposed at the connection of the two hollow tubes (21). The locking ring (22) has a screwing section (221) spirally sleeved outside the outer hollow tube (21) and a constricted section (222) formed at one end of the screwing section (221). The outer hollow tube (21) has a shrinkage seam (212). Along the axial direction away from the screwing section (221), the inner diameter of the constricted section (222) gradually decreases.

7. The wiring device according to claim 6, wherein One end of the hook-shaped structure (11) is inserted into the hollow tube (21), a locking ring (22) is arranged between the hook-shaped structure (11) and the hollow tube (21), and the hook-shaped structure (11) or the hollow tube has a shrinkage joint (212).

8. The wiring device according to claim 6, characterized in that, The wire harness assembly includes at least two wire harness units (31) connected in sequence. One of the wire harness units (31) on both sides of the first and last positions is connected to a high-current generator, and the other is connected to the terminal post (15); a terminal post (311) with an external thread is arranged at the end of one of the adjacent two wire harness units (31), and a terminal sleeve (312) with an internal thread is arranged at the end of the other. The terminal post (311) is screwed with the terminal sleeve (312).

9. The wiring device according to claim 8, characterized in that The wiring device further includes a handle (41) and a bottom cover (51). The handle (41) is a hollow structure with openings at both ends. The handle (41) is inserted into the end of the telescopic rod assembly away from the hook-shaped structure (11). The handle (41) is made of an insulating material. The bottom cover (51) is arranged at the opening of the handle (41) away from the hook-shaped structure (11), and a second through hole for the wire harness assembly to pass through is opened on the bottom cover (51).

10. A high-current generator, characterized in that, The high-current generator includes the wiring device according to any one of claims 1-9.

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