High-voltage bushing module

Abstract

The utility model discloses a high-voltage bushing module, which relates to the technical field of cable test equipment and comprises a connecting ring, a first bushing, a second bushing, a wiring terminal and a cable penetrating end. The first sleeve and the second sleeve are arranged on the two sides of the connecting ring respectively. The wiring terminal is connected with the first sleeve, and the cable penetrating end is connected with the second sleeve; the first sleeve is provided with a first hole channel, and the second sleeve is provided with a second hole channel. The cable penetrating end is provided with a cable penetrating hole. The wiring terminal comprises a first connecting piece, a second connecting piece and a limiting terminal; the first connecting piece is fixedly connected with the second connecting piece, and the limiting terminal is arranged in the first hole channel. The cable connector is simple in structure and reliable in function, the first sleeve and the second sleeve play a role in insulation and supporting, the wiring terminal plays a role in conduction, the limiting terminal is used for clamping a conductor structure of a cable, the first connecting piece is used for fixed installation of the cable connector, the second connecting piece is connected with a wire for conducting voltage, the structure is compact, production and assembly are convenient, and the cost is low. And the market prospect is wide.

Description

Technical Field

[0001] The utility model relates to the technical field of cable test equipment, and particularly relates to a high-voltage bushing module. Background Art

[0002] When cross-linked cable partial discharge tests and withstand voltage tests are carried out on cables according to standards such as GB / T11017-2008, GB / T12706-2008 and IEC60502-2005, cable test equipment is required; the inner cavity of the cylinder body of the cable test equipment usually includes a high-voltage end and a low-voltage end respectively connected to both ends of the cable, and the high-voltage end is supported, fixed and conducts voltage by using a high-voltage bushing. The connection structure between the traditional high-voltage bushing and the cylinder body and the connection structure with the cable are both relatively complex, resulting in cumbersome cable disassembly and assembly steps and low efficiency. Summary of the Invention

[0003] In order to overcome the problem of "the connection structure between the traditional high-voltage bushing and the cylinder body and the connection structure with the cable are both relatively complex, resulting in cumbersome cable disassembly and assembly steps and low efficiency" existing in the above background art, the utility model provides a high-voltage bushing module.

[0004] The technical solution adopted by the utility model to solve the above technical problems is:

[0005] A high-voltage bushing module includes a connecting ring, a first bushing, a second bushing, a terminal and a cable-passing end; the first bushing and the second bushing are respectively arranged on both sides of the connecting ring; the terminal is fixedly connected to one end of the first bushing away from the connecting ring, and the cable-passing end is fixedly connected to one end of the second bushing away from the connecting ring; the first bushing is provided with a first hole, the second bushing is provided with a second hole, and the first hole and the second hole are coaxially arranged; the cable-passing end is provided with a cable-passing hole, and the cable-passing hole is communicated with and coaxially arranged with the second hole; the terminal includes a first connecting piece, a second connecting piece and a limiting terminal; the first connecting piece is fixedly connected to the second connecting piece, the limiting terminal is placed at one end of the first hole away from the connecting ring, and the limiting terminal is fixedly connected to the first connecting piece; the end face of the first connecting piece is fixedly connected to the end face of the first bushing.

[0006] As a further optimized scheme of the utility model, the outer surface of the first bushing is fixedly connected with first umbrella groups and second umbrella groups arranged alternately; the outer surface of the second bushing is fixedly connected with a third umbrella group.

[0007] As a further optimized scheme of the utility model, the first umbrella groups, the second umbrella groups and the third umbrella groups are all constant-diameter umbrella groups, and the diameter of the first umbrella groups is greater than the diameter of the second umbrella groups.

[0008] As a further optimized solution of the present utility model, the first connecting member is in a convex shape, and the two ends of the first connecting member are respectively provided with a first connecting end face and a second connecting end face, and both the first connecting end face and the second connecting end face are circular; the diameter of the first connecting end face is smaller than the diameter of the second connecting end face.

[0009] As a further optimized solution of the present utility model, a circular first covering portion is provided at the edge position of the second end face, and the first covering portion is covered and connected to the end portion of the side wall of the first sleeve.

[0010] As a further optimized solution of the present utility model, the first end face is attached to and fixedly connected to the second connecting member.

[0011] As a further optimized solution of the present utility model, the end portion of the first sleeve is provided with a first fitting protrusion and a first fitting groove, the end portion of the second sleeve is provided with a second fitting protrusion and a second fitting groove, the first fitting protrusion is adapted to and engaged with the second fitting groove, and the second fitting protrusion is adapted to and engaged with the first fitting groove.

[0012] As a further optimized solution of the present utility model, the end portion of the first sleeve is provided with an arc-shaped groove, the end portion of the second sleeve is provided with an arc-shaped protrusion, and the arc-shaped protrusion is adapted to and engaged with the arc-shaped groove.

[0013] As a further optimized solution of the present utility model, a first exhaust hole is opened on the side wall of the first sleeve, and an air valve is fixedly connected to the outer side wall of the first sleeve, and the air valve is communicated with the first exhaust hole.

[0014] As a further optimized solution of the present utility model, a first mounting hole is provided at the edge position of the connecting ring.

[0015] In summary, the beneficial effects of the present utility model are as follows:

[0016] A high-voltage bushing module includes a connection ring, a first bushing, a second bushing, a terminal and a cable-passing end; the first bushing and the second bushing are respectively arranged on both sides of the connection ring; the terminal is fixedly connected to the first bushing, and the cable-passing end is fixedly connected to the second bushing; the first bushing is provided with a first channel, and the second bushing is provided with a second channel; the cable-passing end is provided with a cable-passing hole, and the cable-passing hole is communicated with the second channel and coaxially arranged; the terminal includes a first connecting piece, a second connecting piece and a limiting terminal; the first connecting piece is fixedly connected to the second connecting piece, the limiting terminal is placed at one end of the first channel far from the connection ring, and the limiting terminal is fixedly connected to the first connecting piece; the end face of the first connecting piece is fixedly connected to the end face of the first bushing. The structure of the utility model is simple and the function is reliable. The first bushing and the second bushing play an insulating and supporting role, the terminal plays a conductive role, the limiting terminal is used for clamping the conductor structure of the cable, the first connecting piece is used for the fixed installation of the utility model, the second connecting piece is connected to the wire for conducting voltage, the structure is compact, the production and assembly are convenient, and it has a broad market prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present application will be further described below with reference to the drawings:

[0018] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 is a schematic diagram of the internal structure of the utility model;

[0020] Figure 3 is a schematic diagram of the positions and structures of the first umbrella group, the second umbrella group and the third umbrella group;

[0021] Figure 4 is a schematic diagram of the connection structure between the first bushing and the second bushing;

[0022] Figure 5 is a schematic diagram of the structure of the first connecting piece;

[0023] Figure 6 is a schematic diagram of the side view structure of the connection ring;

[0024] Figure 7 is a schematic diagram of the top view structure of the second connecting piece.

[0025] Description of the reference numerals:

[0026] In the figure, 1 is a connecting ring; 11 is a lifting hole; 12 is a grounding bolt hole; 2 is a first sleeve; 201 is a first umbrella group; 202 is a second umbrella group; 21 is a first channel; 22 is a first fitting protrusion; 23 is a first fitting groove; 24 is an arc-shaped protrusion; 3 is a second sleeve; 301 is a third umbrella group; 31 is a second channel; 32 is a second fitting protrusion; 33 is a second fitting groove; 34 is an arc-shaped groove; 4 is a terminal; 41 is a first connector; 411 is a first end face; 412 is a second end face; 413 is a first covering part; 414 is a mounting surface; 42 is a second connector; 421 is a wiring hole; 43 is a limiting terminal; 5 is a cable passing end; 51 is a cable passing hole; 6 is an air valve; 7 is a cylinder body. Detailed implementation manners

[0027] Based on the above structural features of the present application, the implementation manners of the present application are further described as follows:

[0028] Referring to Figures 1 to 7 , this embodiment provides a high-voltage bushing module, including a connecting ring 1, a first sleeve 2, a second sleeve 3, a terminal 4 and a cable passing end 5. Referring to Figure 1 and Figure 2 , the first sleeve 2 and the second sleeve 3 are respectively arranged on both sides of the connecting ring 1; the terminal 4 is fixedly connected to one end of the first sleeve 2 away from the connecting ring 1, and the cable passing end 5 is fixedly connected to one end of the second sleeve 3 away from the connecting ring 1 (for example, fixedly connected by bolts). The first sleeve 2 is fixedly connected to the connecting ring 1 (for example, fixedly connected by bolts, fixedly connected by annular clamping or fixedly connected integrally), and the second sleeve 3 is fixedly connected to the connecting ring 1 (for example, fixedly connected by bolts, fixedly connected by annular clamping or fixedly connected integrally). The first sleeve 2 is provided with a first channel 21, and the second sleeve 3 is provided with a second channel 31. The first channel 21 and the second channel 31 are coaxially arranged; the first channel 21 is in the shape of a straight round hole, and the second channel 31 is in the shape of a straight round hole. The cable passing end 5 is provided with a cable passing hole, and the cable passing hole is communicated with and coaxially arranged with the second channel 31. When in use, the present utility model is inserted into the cylinder body 7 and fixedly connected, and the cable is sequentially inserted into the cable passing hole, the second channel 31 and the first channel 21 until the end of the cable abuts against the terminal 4.

[0029] Referring to Figure 2, the terminal 4 includes a first connector 41, a second connector 42 and a limiting terminal 43; the first connector 41 is fixedly connected to the second connector 42 (for example, fixedly connected by bolts), the limiting terminal 43 is placed at one end of the first channel 21 far from the connection ring 1, and the limiting terminal 43 is fixedly connected to the first connector 41; the end face of the first connector 41 is fixedly connected to the end face of the first sleeve 2. The limiting terminal 43 is in contact with and fixedly connected to the first connector 41 (for example, fixedly connected by bolts); both the second connector 42 and the limiting terminal 43 are made of conductive materials (such as copper-containing metals, iron-containing metals, etc.), the first connector 41 is made of insulating materials (such as ceramics), the second connector 42 and the limiting terminal 43 are connected by conductive metal wires (such as copper wires), the conductive metal wires are inserted into the insertion holes of the first connector 41, and anti-oil sealing rings are provided in the insertion holes. The conductive metal wires are connected to the inner wall of the insertion holes through the anti-oil sealing rings, so that the voltage can be conducted to the end of the cable through the terminal 4, thereby performing the cable pressure measurement test. The conductor structure of the cable is inserted into the limiting terminal 43 and contacts each other, thereby realizing conduction.

[0030] Refer to Figure 2 With Figure 3 , the outer surface of the first sleeve 2 is fixedly connected with first umbrella groups 201 and second umbrella groups 202 arranged alternately (for example, the first sleeve 2, the first umbrella groups 201 and the second umbrella groups 202 are all made of ceramic materials and are integrally sintered together); the outer surface of the second sleeve 3 is fixedly connected with a third umbrella group 301 (for example, the second sleeve 3 and the third umbrella group 301 are all made of ceramic materials and are integrally sintered together). The first umbrella groups 201, the second umbrella groups 202 and the third umbrella group 301 are all sizing umbrella groups, and the diameter of the first umbrella groups 201 is larger than the diameter of the second umbrella groups 202.

[0031] Refer to Figure 2 With Figure 5 , the first connector 41 is in a convex shape, the two ends of the first connector 41 are respectively provided with a first connection end face and a second connection end face, and both the first connection end face and the second connection end face are circular; the diameter of the first connection end face is smaller than the diameter of the second connection end face. An annular first covering portion 413 is provided at the edge position of the second end face 412 (for example, fixedly connected integrally), and the first covering portion 413 is covered and connected to the end of the side wall of the first sleeve 2.

[0032] Refer to Figure 2 With Figure 5 , the first end face 411 and the second connector 42 are mutually attached and fixedly connected (for example, fixedly connected by bolts).

[0033] Refer to Figures 2 to 5, at the end of the first sleeve 2, there are a first fitting protrusion 22 and a first fitting groove 23. At the end of the second sleeve 3, there are a second fitting protrusion 32 and a second fitting groove 33. The first fitting protrusion 22 is adapted to and engaged with the second fitting groove 33, and the second fitting protrusion 32 is adapted to and engaged with the first fitting groove 23, thereby improving the sealing performance at the connection position between the first sleeve 2 and the second sleeve 3. At the end of the first sleeve 2, there is an arc groove 34, and at the end of the second sleeve 3, there is an arc protrusion 24. The arc protrusion 24 is adapted to and engaged with the arc groove 34; the arc protrusion 24 and the arc groove 34 cooperate with each other to play a guiding role when the first sleeve 2 and the second sleeve 3 are installed, thereby improving the installation accuracy, and reducing unnecessary collisions when the first fitting protrusion 22 and the second fitting groove 33, and the second fitting protrusion 32 and the first fitting groove 23 are respectively engaged and installed, thereby reducing installation wear and improving the sealing performance and service life.

[0034] Refer to Figure 4 , on the side wall of the first sleeve 2, there is a first exhaust hole. On the outer side wall of the first sleeve 2, there is a gas valve 6 fixedly connected, and the gas valve 6 is communicated with the first exhaust hole. The gas valve 6 and the first exhaust hole are hermetically connected by threads. The connecting ring 1 is provided with a receiving hole, and the gas valve 6 is inserted and arranged in the receiving hole.

[0035] Refer to Figure 2 With Figure 5 , at the edge position of the connecting ring 1, there are a first mounting hole, a lifting hole 11 and a grounding bolt hole 12. There is a first mounting bolt in the first mounting hole. The inner wall of the cylinder 7 is fixedly connected with a first mounting ring by bolts. The first mounting ring and the connecting ring 1 are detachably connected by the first mounting bolt; an oil-resistant sealing ring is crimped between the connecting ring 1 and the first mounting ring; the inner wall of the cylinder 7 is fixedly connected with a second mounting ring by bolts. The first connecting member 41 is inserted into the second mounting ring; the first connecting member 41 is provided with a stepped mounting surface 414, and the stepped mounting surface 414 abuts against the second mounting ring, and an oil-resistant sealing ring is provided at the abutting position. The grounding bolt hole 12 is connected with a grounding wire, and the cylinder 7 is provided with a wire passing hole for the grounding wire to run through. Refer to Figure 7 , the second connecting member 42 is provided with a wiring hole 421. When in use, a wire is passed through the wiring hole 421 and connected with the second connecting member 42 (such as bundling connection) for supplying voltage to the cable. When in use, a filling liquid (such as deionized water or insulating oil) is filled in the cylinder 7 to make the filling liquid cover the outer surface of the present invention, thereby realizing insulation. The first mounting ring and the second mounting ring are both made of insulating materials (such as ceramics). During the cable voltage test, one end of the cable far away from the terminal 4 is connected to the power supply to form a complete closed loop.

[0036] The structure of the utility model is simple and the function is reliable. The first sleeve 2 and the second sleeve 3 play an insulating and supporting role, the terminal 4 plays a conductive role, the limit terminal 43 is used for clamping the conductor structure of the cable, the first connecting piece 41 is used for the fixed installation of the utility model, and the second connecting piece 42 is connected to the wire for conducting voltage. The structure is compact, and the production and assembly are convenient, having a broad market prospect.

[0037] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0038] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected" 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, an electrical connection, a direct connection, or a connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0039] In summary, for those skilled in the art, guided by the present utility model, without departing from the principle and spirit of the present utility model, the changes, modifications, substitutions, and deformations made to the present utility model still fall within the protection scope of the present utility model.

Claims

1. A high-voltage bushing module, characterized in that: It includes a connecting ring (1), a first sleeve (2), a second sleeve (3), a terminal (4) and a cable-passing end (5); the first sleeve (2) and the second sleeve (3) are respectively arranged on both sides of the connecting ring (1); the terminal (4) is fixedly connected to one end of the first sleeve (2) far from the connecting ring (1), and the cable-passing end (5) is fixedly connected to one end of the second sleeve (3) far from the connecting ring (1). The first sleeve (2) is provided with a first channel (21), the second sleeve (3) is provided with a second channel (31), and the first channel (21) and the second channel (31) are coaxially arranged; the cable-passing end (5) is provided with a cable-passing hole, and the cable-passing hole is communicated with and coaxially arranged with the second channel (31). The terminal (4) includes a first connector (41), a second connector (42) and a limiting terminal (43); the first connector (41) is fixedly connected to the second connector (42), the limiting terminal (43) is placed at one end of the first channel (21) far from the connecting ring (1), and the limiting terminal (43) is fixedly connected to the first connector (41); the end face of the first connector (41) is fixedly connected to the end face of the first sleeve (2).

2. The high-voltage bushing module according to claim 1, wherein: The outer surface of the first sleeve (2) is fixedly connected with first umbrella groups (201) and second umbrella groups (202) arranged alternately; the outer surface of the second sleeve (3) is fixedly connected with a third umbrella group (301).

3. The high-voltage bushing module according to claim 2, wherein: The first umbrella groups (201), the second umbrella groups (202) and the third umbrella group (301) are all constant-diameter umbrella groups, and the diameter of the first umbrella groups (201) is greater than the diameter of the second umbrella groups (202).

4. The high-voltage bushing module according to claim 3, characterized in that: The first connector (41) is in a convex shape, and both ends of the first connector (41) are respectively provided with a first connection end face and a second connection end face, and both the first connection end face and the second connection end face are circular; the diameter of the first connection end face is smaller than the diameter of the second connection end face.

5. The high-voltage bushing module according to claim 4, wherein: A circular first covering part (413) is provided at the edge position of the second end face (412), and the first covering part (413) is covered and connected to the end part of the side wall of the first sleeve (2).

6. The high-voltage bushing module according to claim 5, wherein: The first end face (411) is in contact with and fixedly connected to the second connector (42).

7. The high-voltage bushing module according to claim 6, wherein: The end of the first sleeve (2) is provided with a first fitting protrusion (22) and a first fitting groove (23), the end of the second sleeve (3) is provided with a second fitting protrusion (32) and a second fitting groove (33), the first fitting protrusion (22) is adapted to and engaged with the second fitting groove (33), and the second fitting protrusion (32) is adapted to and engaged with the first fitting groove (23).

8. The high-voltage bushing module according to claim 7, characterized in that: The end of the first sleeve (2) is provided with an arc-shaped groove (34), the end of the second sleeve (3) is provided with an arc-shaped protrusion (24), and the arc-shaped protrusion (24) is adapted to and engaged with the arc-shaped groove (34).

9. The high-voltage bushing module according to claim 8, wherein: A first exhaust hole is formed in the side wall of the first sleeve (2), and a gas valve (6) is fixedly connected to the outer side wall of the first sleeve (2), and the gas valve (6) is communicated with the first exhaust hole.

10. The high-voltage bushing module according to any one of claims 1-9, characterized in that: A first mounting hole is provided at the edge position of the connecting ring (1).

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