Anti-pollution flashover structure of high-voltage voltage transformer

Abstract

The utility model relates to an anti-pollution flashover structure of a high-voltage voltage transformer. The anti-pollution flashover structure comprises a first outer sleeve piece, a second outer sleeve piece, a first flexible wrapping piece, a second flexible wrapping piece, an outer sleeve piece connecting body, a first tightening pressure head and a second tightening pressure head, the first flexible wrapping piece is arranged in the first outer sleeve piece and used for allowing a first terminal of the first wire harness to penetrate through, and the second flexible wrapping piece is arranged in the second outer sleeve piece and used for allowing a second terminal of the second wire harness to penetrate through; the external member connecting body is connected with the first external member and the second external member and is used for surrounding the first terminal and the second terminal; the first tightening pressure head is arranged on the first outer sleeve piece and can be used for pressing the first flexible wrapping piece on a first wire harness body of the first wire harness; and the second tightening pressure head is arranged on the second outer sleeve piece and can be used for pressing the second flexible wrapping piece on a second wire harness body of the second wire harness. And the first external member and the second external member do not need to be pulled, so that the condition of poor contact caused by separation of the first terminal and the second terminal is avoided.

Description

Technical Field

[0001] The present disclosure relates to the field of electrical components, and in particular, to an anti-fouling flashover structure for a high-voltage voltage transformer. Background Art

[0002] The rubber bushing of a transformer is an important component in the transformer, mainly used for sealing and insulation. The rubber bushing is usually made of rubber materials resistant to oil, heat and aging, and has good elasticity and sealing performance.

[0003] The rubber bushing has certain insulation performance, which can prevent electrical faults and the generation of electric arcs, and ensure the normal operation of the transformer. At the same time, the rubber bushing has certain elasticity and buffering effect, which can reduce the vibration and impact generated during the operation of the transformer, and protect the structure and components of the transformer.

[0004] In a transformer, after two wire harnesses are connected by metal terminals, they usually need to be wrapped with a rubber bushing outside. The purpose is to buffer and protect the metal terminals and reduce the generation of electric arcs. The common rubber bushing has a simple structure and is in a tubular structure. When in use, the rubber bushing is first sleeved on one wire harness. After the metal terminals are firmly connected, the rubber bushing is pulled to move until it wraps the metal terminals, and then the two ends of the rubber bushing are tightened by cable ties to achieve firm connection with the wire harness.

[0005] However, because the rubber bushing itself has a strong wrapping effect on the wire harness, during the pulling process, the displacement of the rubber bushing may also cause pulling on the metal terminals, resulting in detachment between the metal terminals, which may lead to poor contact of the terminals. At the same time, during the process of pulling the rubber bushing, metal pliers are usually needed, which also causes damage to the rubber bushing during the pulling process. Summary of the Utility Model

[0006] The purpose of the present disclosure is to provide an anti-fouling flashover structure for a high-voltage voltage transformer to solve the technical problems existing in the related art.

[0007] To achieve the above purpose, the present disclosure provides an anti-fouling flashover structure for a high-voltage voltage transformer, including a first outer member, a second outer member, a first flexible wrapping member, a second flexible wrapping member, an outer member connecting body, a first tightening head, and a second tightening head;

[0008] The first flexible wrapping member is disposed inside the first outer member and is used for the first terminal of the first wire harness to pass through, and the second flexible wrapping member is disposed on the second outer member and is used for the second terminal of the second wire harness to pass through;

[0009] The outer member connecting body connects the first outer member and the second outer member and is used for surrounding the first terminal and the second terminal;

[0010] The first tightening head is arranged on the first outer sleeve and can be used to press the first flexible wrapper against the first wire harness body of the first wire harness;

[0011] The second tightening head is arranged on the second outer sleeve and can be used to press the second flexible wrapper against the second wire harness body of the second wire harness.

[0012] Optionally, the first outer sleeve, the second outer sleeve and the outer sleeve connector are all configured as tubular structures;

[0013] Wherein, a first internal thread is formed on the inner wall of the first outer sleeve, a second internal thread is formed on the inner wall of the second outer sleeve, a first external thread is formed on the outer wall of one end of the outer sleeve connector, a second external thread is formed on the outer wall of the other end of the outer sleeve connector, the first internal thread is connected to the first external thread, and the second internal thread is connected to the second external thread.

[0014] Optionally, the first flexible wrapper is formed with a first open end and a second open end, the caliber of the first open end is larger than that of the second open end, the circumferential edge of the first open end is bonded to the first outer sleeve, and a first annular gap is defined between the first outer sleeve and the first flexible wrapper. The first tightening head is arranged on the inner wall of the first outer sleeve and at least partially arranged in the first annular gap to press the second open end against the first wire harness body;

[0015] The second flexible wrapper is formed with a third open end and a fourth open end, the caliber of the third open end is larger than that of the fourth open end, the circumferential edge of the third open end is bonded to the second outer sleeve, and a second annular gap is defined between the second outer sleeve and the second flexible wrapper. The second tightening head is arranged on the inner wall of the second outer sleeve and at least partially arranged in the second annular gap to press the fourth open end against the second wire harness body.

[0016] Optionally, the first tightening head includes a first pin shaft, a first dial block, a first rotating piece and a first pressing head;

[0017] The first pin shaft is rotatably arranged on the inner wall of the first outer sleeve, the first rotating piece is connected to the first pin shaft, and both the first dial block and the first pressing head are connected to the first rotating piece and are arranged at intervals;

[0018] Wherein, the first pressing head is arranged in the first annular gap and is used to press the second open end against the first wire harness body, and the first dial block is used to abut against the outer sleeve connector.

[0019] Optionally, the second tightening press head includes a second pin shaft, a second shifting block, a second rotating piece, and a second extrusion head;

[0020] The second pin shaft is rotatably arranged on the inner wall of the second outer sleeve, the second rotating piece is connected to the second pin shaft, and both the second shifting block and the second extrusion head are connected to the second rotating piece and are arranged at intervals;

[0021] Wherein, the second extrusion head is arranged in the second annular gap and is used to press the second open end against the second wire harness body, and the second shifting block is used to abut against the outer sleeve connecting body.

[0022] Optionally, the first outer sleeve is configured as a first tubular structure, and a plurality of the first tightening press heads are provided, and the plurality of first tightening press heads are evenly spaced along the circumferential direction of the first tubular structure;

[0023] The second outer sleeve is configured as a second tubular structure, and a plurality of the second tightening press heads are provided, and the plurality of second tightening press heads are evenly spaced along the circumferential direction of the second tubular structure.

[0024] Optionally, the first pin shaft is perpendicular to the first axis of the first tubular structure, and the second pin shaft is perpendicular to the second axis of the second tubular structure.

[0025] Optionally, the first pin shaft, the first shifting block, the first rotating piece, and the first extrusion head are configured as an integrally formed structure;

[0026] The second pin shaft, the second shifting block, the second rotating piece, and the second extrusion head are configured as an integrally formed structure.

[0027] Optionally, the first tightening press head is made of an insulating material, and the second tightening press head is made of an insulating material.

[0028] Optionally, both the first outer sleeve and the second outer sleeve are made of an insulating material, and both the first flexible wrapping piece and the second flexible wrapping piece are made of a flexible insulating material.

[0029] In the above technical solution, by providing a first outer sleeve and a second outer sleeve, where the first outer sleeve is used to sleeve a first wire harness, the second outer sleeve is used to sleeve a second wire harness, and a kit connector connects the first outer sleeve and the second outer sleeve and is used to surround a first terminal and a second terminal, there is no need to pull the first outer sleeve and the second outer sleeve, avoiding the disconnection between the first terminal and the second terminal and causing poor contact. Moreover, there is no need to use metal pliers, avoiding damage to the first outer sleeve and the second outer sleeve. Additionally, by providing a first flexible wrapper and a second flexible wrapper, the sealing performance of the first wire harness and the second wire harness can be improved, and a good buffering effect can be achieved, effectively protecting the first wire harness and the second wire harness, reducing the vibration caused by external impacts, and protecting the connection strength between the first terminal and the second terminal. Furthermore, by providing a first tightening head and a second tightening head, where the first tightening head presses the first flexible wrapper against the first wire harness body of the first wire harness, and the second tightening head presses the second flexible wrapper against the second wire harness body of the second wire harness, the sealing performance and the firmness between structures are further improved.

[0030] Other features and advantages of the present disclosure will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification, and are used together with the following specific implementation to explain the present disclosure, but do not constitute a limitation to the present disclosure. In the drawings:

[0032] Figure 1 is a schematic diagram of an anti-fouling flashover structure of a high-voltage voltage transformer according to an embodiment of the present disclosure, where the first extrusion head is not pressed against the first wire harness body, and the second extrusion head is not pressed against the second wire harness body.

[0033] Figure 2 is a schematic diagram of an anti-fouling flashover structure of a high-voltage voltage transformer according to an embodiment of the present disclosure, where the first extrusion head is pressed against the first wire harness body, and the second extrusion head is pressed against the second wire harness body.

[0034] Figure 3 is Figure 1 an enlarged view of the location A shown.

[0035] Figure 4 is Figure 2 an enlarged view of the location B shown.

[0036] DESCRIPTION OF THE REFERENCE NUMERALS

[0037] 1. First outer member; 21. First flexible wrapping member; 210. First annular gap; 22. Second flexible wrapping member; 220. Second annular gap; 3. Outer member connecting body; 41. First tightening press head; 411. First pin shaft; 412. First shifting block; 413. First rotating piece; 414. First pressing head; 42. Second tightening press head; 421. Second pin shaft; 422. Second shifting block; 423. Second rotating piece; 424. Second pressing head; 5. Second outer member; 100. First wire harness; 101. First terminal; 102. First wire harness body; 200. Second wire harness; 201. Second terminal; 202. Second wire harness body. Detailed implementation manners

[0038] The following will describe in detail the detailed implementation manners of the present disclosure with reference to the accompanying drawings. It should be understood that the detailed implementation manners described herein are only for explaining and interpreting the present disclosure, and are not used to limit the present disclosure.

[0039] Referring to Figures 1 to 4 As shown, the present disclosure provides an anti-fouling flashover structure for a high-voltage voltage transformer, including a first outer member 1, a second outer member 5, a first flexible wrapping member 21, a second flexible wrapping member 22, an outer member connecting body 3, a first tightening press head 41, and a second tightening press head 42; the first flexible wrapping member 21 is disposed inside the first outer member 1 and is used for the first terminal 101 of the first wire harness 100 to pass through, and the second flexible wrapping member 22 is disposed on the second outer member 5 and is used for the second terminal 201 of the second wire harness 200 to pass through; the outer member connecting body 3 connects the first outer member 1 and the second outer member 5 and is used to enclose the first terminal 101 and the second terminal 201; the first tightening press head 41 is disposed on the first outer member 1 and can be used to press the first flexible wrapping member 21 tightly against the first wire harness body 102 of the first wire harness 100; the second tightening press head 42 is disposed on the second outer member 5 and can be used to press the second flexible wrapping member 42 tightly against the second wire harness body 202 of the second wire harness 200.

[0040] In the above technical solution, by providing the first outer sleeve 1 and the second outer sleeve 5, where the first outer sleeve 1 is used to sleeved on the first wire harness 100, the second outer sleeve 5 is used to sleeved on the second wire harness 200, and the sleeve connector 3 connects the first outer sleeve 1 and the second outer sleeve 5 and is used to surround the first terminal 101 and the second terminal 201, there is no need to pull the first outer sleeve 1 and the second outer sleeve 5, avoiding the disconnection between the first terminal 101 and the second terminal 201 and causing poor contact. And there is no need to use metal pliers, avoiding damage to the first outer sleeve 1 and the second outer sleeve 5. Moreover, by providing the first flexible wrapping member 21 and the second flexible wrapping member 22, the sealing performance of the first wire harness 100 and the second wire harness 200 can be improved, and a good buffering effect can be achieved, effectively protecting the first wire harness 100 and the second wire harness 200, reducing the vibration caused by external impact, and protecting the connection strength of the first terminal 101 and the second terminal 201. In addition, by providing the first tightening head 41 and the second tightening head 42, where the first tightening head 41 presses the first flexible wrapping member 21 against the first wire harness body 102 of the first wire harness 100, and the second tightening head 42 presses the second flexible wrapping member 42 against the second wire harness body 202 of the second wire harness 200, the sealing performance and the firmness between the structures are further improved.

[0041] Optionally, referring to Figure 1 and Figure 2 As shown, the first outer sleeve 1, the second outer sleeve 5, and the sleeve connector 3 are all configured as tubular structures; wherein, a first internal thread (not shown) is formed on the inner wall of the first outer sleeve 1, a second internal thread (not shown) is formed on the inner wall of the second outer sleeve 5, a first external thread (not shown) is formed on the outer wall of one end of the sleeve connector 3, a second external thread (not shown) is formed on the outer wall of the other end of the sleeve connector 3, the first internal thread is connected to the first external thread, and the second internal thread is connected to the second external thread. This facilitates the connection and disassembly of the sleeve connector 3 with the first outer sleeve 1 and the second outer sleeve 5, but the present disclosure does not limit the specific connection method.

[0042] In one embodiment, referring to Figure 1 and Figure 2As shown, the first flexible wrapper 21 is formed with a first open end and a second open end. The diameter of the first open end is larger than that of the second open end. The circumferential edge of the first open end is adhesively bonded to the first outer sleeve 1, and a first annular gap 210 is defined between the first outer sleeve 1 and the first flexible wrapper 21. The first tightening press head 41 is disposed on the inner wall of the first outer sleeve 1 and at least partially disposed within the first annular gap 210 for pressing the second open end against the first wire harness body 102. The second flexible wrapper 22 is formed with a third open end and a fourth open end. The diameter of the third open end is larger than that of the fourth open end. The circumferential edge of the third open end is adhesively bonded to the second outer sleeve 5, and a second annular gap 220 is defined between the second outer sleeve 5 and the second flexible wrapper 22. The second tightening press head 42 is disposed on the inner wall of the second outer sleeve 5 and at least partially disposed within the second annular gap 220 for pressing the fourth open end against the second wire harness body 202.

[0043] The shapes of the first flexible wrapper 21 and the second flexible wrapper 22 facilitate the insertion of the first wire harness 100 and the second wire harness 200, and can also effectively protect the first wire harness 100 and the second wire harness 200. Secondly, the use of the adhesive bonding method for the flexible wrapper can improve the connection stability. In addition, an annular gap is formed between the whole body of the flexible wrapper and the inner wall of the outer sleeve. The existence of this annular gap enables that during the operation of the device, even if there are dirty substances attached to the surface of the device, they will not directly contact the key parts, thus playing a preliminary anti-fouling role.

[0044] Referring to Figure 3 and Figure 4 As shown, the first tightening press head 41 includes a first pin shaft 411, a first dial block 412, a first rotating piece 413 and a first extrusion head 414. The first pin shaft 411 is rotatably disposed on the inner wall of the first outer sleeve 1. The first rotating piece 413 is connected to the first pin shaft 411. Both the first dial block 412 and the first extrusion head 414 are connected to the first rotating piece 413 and are spaced apart. Among them, the first extrusion head 414 is disposed within the first annular gap 210 and is used for pressing the second open end against the first wire harness body 102, and the first dial block 412 is used for abutting against the outer sleeve connecting body 3.

[0045] The second tightening press head 42 includes a second pin shaft 421, a second dial block 422, a second rotating piece 423 and a second extrusion head 424. The second pin shaft 421 is rotatably disposed on the inner wall of the second outer sleeve 5. The second rotating piece 423 is connected to the second pin shaft 421. Both the second dial block 422 and the second extrusion head 424 are connected to the second rotating piece 423 and are spaced apart. Among them, the second extrusion head 424 is disposed within the second annular gap 220 and is used for pressing the second open end against the second wire harness body 202, and the second dial block 422 is used for abutting against the outer sleeve connecting body 3.

[0046] In this embodiment, the tightening press head is composed of a pin shaft, a rotating piece, an extrusion head and a dial block. The two ends of the pin shaft are rotatably inserted into adjacent pin holes, so that the tightening press head can rotate freely within the outer sleeve. The extrusion head extends into the annular gap. When the fastener rotates, the extrusion head will extrude the annular gap, thereby cleaning the dirt attached to the inner wall of the flexible wrapper and the outer sleeve. The outer edge of the dial block is slidably fitted with the inner wall of the outer sleeve, so that the fastener can rotate smoothly. In addition, when the outer sleeve connector 3 is screwed into the corresponding outer sleeve, the outer sleeve connector 3 moves linearly relative to the outer sleeve. After moving a certain distance, the port part of the outer sleeve connector 3 is inserted into the gap between the rotating piece and the outer sleeve. At this time, the port part of the outer sleeve connector 3 contacts the dial block and pushes the dial block. When the dial block rotates, it also causes the rotating piece to rotate, and the extrusion head squeezes the flexible wrapper, so that the flexible wrapper is tightly attached to the wire harness. This connection method realizes the connection of two outer sleeves by the outer sleeve connector, and also makes the wrapping and fixing effect of the flexible wrapper on the wire harness better.

[0047] Optionally, the first outer sleeve 1 is configured as a first tubular structure, and a plurality of first tightening press heads 41 are provided. The plurality of first tightening press heads 41 are evenly spaced along the circumference of the first tubular structure; the second outer sleeve 5 is configured as a second tubular structure, and a plurality of second tightening press heads 42 are provided. The plurality of second tightening press heads 42 are evenly spaced along the circumference of the second tubular structure, further enhancing the tight fit between the flexible wrapper and the wire harness and strengthening the fixing effect on the wire harness.

[0048] Optionally, the first pin shaft 411 is perpendicular to the first axis of the first tubular structure, and the second pin shaft 421 is perpendicular to the second axis of the second tubular structure. However, the present disclosure does not limit the angle between the first pin shaft 411 and the first axis, nor does it limit the angle between the second pin shaft 421 and the second axis.

[0049] Optionally, the first pin shaft 411, the first dial block 412, the first rotating piece 413 and the first extrusion head 414 are configured as an integrally formed structure; the second pin shaft 421, the second dial block 422, the second rotating piece 423 and the second extrusion head 424 are configured as an integrally formed structure. It is convenient for processing and forming. For example, it can be made of insulating plastic material to reduce costs.

[0050] Optionally, both the first outer member 1 and the second outer member 5 can be made of an insulating material, and both the first flexible wrapping member 21 and the second flexible wrapping member 22 are made of a flexible insulating material. For example, the first outer member 1 and the second outer member 5 are made of a rigid engineering plastic material. Based on this material structure, the first outer member 1 and the second outer member 5 have the functions of insulation and anti-collision. The first flexible wrapping member 21 and the second flexible wrapping member 22 can adopt a soft tube sleeve structure made of rubber. However, the present disclosure does not limit the specific materials of the first outer member 1, the second outer member 5, the first flexible wrapping member 21, and the second flexible wrapping member 22.

[0051] The preferred embodiments of the present disclosure have been described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0052] In addition, it should be noted that, among the various specific technical features described in the above specific embodiments, they can be combined in any suitable manner without conflict. To avoid unnecessary repetition, the present disclosure does not separately describe various possible combination manners.

[0053] In addition, any combination can be made between various different embodiments of the present disclosure, as long as it does not violate the idea of the present disclosure, it should also be regarded as the content disclosed by the present disclosure.

Claims

1. A pollution flashover prevention structure for a high-voltage voltage transformer, characterized in that, It includes a first outer sleeve, a second outer sleeve, a first flexible wrapper, a second flexible wrapper, an outer sleeve connector, a first tightening press head, and a second tightening press head; The first flexible wrapper is disposed within the first outer sleeve and is used for the first terminal of the first wire harness to pass through. The second flexible wrapper is disposed within the second outer sleeve and is used for the second terminal of the second wire harness to pass through; The outer sleeve connector connects the first outer sleeve and the second outer sleeve and is used for enclosing the first terminal and the second terminal; The first tightening press head is disposed on the first outer sleeve and can be used to press the first flexible wrapper against the first wire harness body of the first wire harness; The second tightening press head is disposed on the second outer sleeve and can be used to press the second flexible wrapper against the second wire harness body of the second wire harness.

2. The anti-pollution flashover structure of the high-voltage voltage transformer according to claim 1, characterized in that, The first outer sleeve, the second outer sleeve, and the outer sleeve connector are all configured as tubular structures; Wherein, a first internal thread is formed on the inner wall of the first outer sleeve, a second internal thread is formed on the inner wall of the second outer sleeve, a first external thread is formed on the outer wall of one end of the outer sleeve connector, a second external thread is formed on the outer wall of the other end of the outer sleeve connector, the first internal thread is connected to the first external thread, and the second internal thread is connected to the second external thread.

3. The anti-fouling flashover structure of the high-voltage voltage transformer according to claim 1, characterized in that, The first flexible wrapper forms a first open end and a second open end. The diameter of the first open end is larger than that of the second open end. The circumferential edge of the first open end is bonded to the first outer sleeve, and a first annular gap is defined between the first outer sleeve and the first flexible wrapper. The first tightening press head is disposed on the inner wall of the first outer sleeve and at least partially disposed within the first annular gap to press the second open end against the first wire harness body; The second flexible wrapper forms a third open end and a fourth open end. The diameter of the third open end is larger than that of the fourth open end. The circumferential edge of the third open end is bonded to the second outer sleeve, and a second annular gap is defined between the second outer sleeve and the second flexible wrapper. The second tightening press head is disposed on the inner wall of the second outer sleeve and at least partially disposed within the second annular gap to press the fourth open end against the second wire harness body.

4. The anti-fouling flashover structure of the high-voltage voltage transformer according to claim 3, characterized in that, The first tightening press head includes a first pin shaft, a first dial, a first rotating piece, and a first pressing head; The first pin shaft is rotatably disposed on the inner wall of the first outer sleeve. The first rotating piece is connected to the first pin shaft. The first dial and the first pressing head are both connected to the first rotating piece and are spaced apart; Wherein, the first pressing head is disposed within the first annular gap and is used to press the second open end against the first wire harness body, and the first dial is used to abut against the outer sleeve connector.

5. The anti-pollution flashover structure of the high-voltage voltage transformer according to claim 4, characterized in that, The second tightening press head includes a second pin shaft, a second dial, a second rotating piece, and a second pressing head; The second pin shaft is rotatably arranged on the inner wall of the second outer sleeve. The second rotating piece is connected to the second pin shaft. The second shifting block and the second pressing head are both connected to the second rotating piece and are arranged at intervals. Wherein, the second pressing head is arranged in the second annular gap and is used for pressing the second open end against the second wire harness body. The second shifting block is used for abutting against the outer sleeve connecting body.

6. The anti-fouling flashover structure of the high-voltage voltage transformer according to claim 5, characterized in that, The first outer sleeve is configured as a first tubular structure. A plurality of first tightening pressing heads are provided. The plurality of first tightening pressing heads are evenly spaced along the circumferential direction of the first tubular structure. The second outer sleeve is configured as a second tubular structure. A plurality of second tightening pressing heads are provided. The plurality of second tightening pressing heads are evenly spaced along the circumferential direction of the second tubular structure.

7. The anti-fouling flashover structure of the high-voltage voltage transformer according to claim 6, characterized in that, The first pin shaft is perpendicular to the first axis of the first tubular structure, and the second pin shaft is perpendicular to the second axis of the second tubular structure.

8. The anti-fouling flashover structure of the high-voltage voltage transformer according to claim 5, characterized in that, The first pin shaft, the first shifting block, the first rotating piece and the first pressing head are configured as an integrally formed structure. The second pin shaft, the second shifting block, the second rotating piece and the second pressing head are configured as an integrally formed structure.

9. The anti-pollution flashover structure of the high-voltage voltage transformer according to claim 8, characterized in that, The first tightening pressing head is made of an insulating material, and the second tightening pressing head is made of an insulating material.

10. The anti-fouling flashover structure of the high-voltage voltage transformer according to any one of claims 1-9, characterized in that, Both the first outer sleeve and the second outer sleeve are made of an insulating material. Both the first flexible wrapping piece and the second flexible wrapping piece are made of a flexible insulating material.

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