Transformer / electric reactor leading-out wiring structure and transformer / electric reactor

Abstract

The utility model relates to the technical field of transformers, in particular to a transformer / electric reactor leading-out wiring structure and a transformer / electric reactor, the transformer / electric reactor leading-out wiring structure comprises a wiring bolt used for being installed on an insulation wiring component, and further comprises an insulation protective cap, one end of the insulating protective cap is provided with an opening, the other end of the insulating protective cap is provided with a cylindrical main body with an opening, the insulating protective cap sleeves the wiring bolt and enables the whole wiring bolt to be located in an inner cavity of the cylindrical main body, and the insulating protective cap is provided with a threading port for an external cable connected to the wiring bolt to pass through; compared with the prior art, the wiring bolt does not have an exposed part, so that the condition that an electrified part is exposed is avoided, an electric shock accident can be fundamentally avoided, the operation safety is improved, and meanwhile, the structure is simple, the operation is simple and convenient, and popularization and use are facilitated. And the insulation protective cap can effectively prevent external environments such as dust, rainwater and the like from damaging the wiring bolt, so that the connection stability is improved, and the fault occurrence rate is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a transformer / reactor lead-out wiring structure and a transformer / reactor. Background Art

[0002] There are usually two forms of lead-out wiring structures for transformers / reactors. One is to use terminal blocks as the wiring terminals for the input and output parts of the transformer / reactor, but this is relatively expensive. The other is to use terminal screws to fix them on an insulating plate. However, the screws that play a conductive role after wiring are not insulated around the periphery, making it easy for operators to directly contact the conductive parts, posing a great safety hazard.

[0003] In the prior art, for example, the utility model patent with authorization announcement number CN204215872U discloses a new modular terminal with an insulation protection function. Specifically, it discloses a screw for fixing and conducting electricity. The shank of the screw passes through a through-hole formed in an insulating plate. The large end of the screw presses a pressure piece connected to the transformer coil wire onto the bottom of the insulating plate. The screw and the pressure piece connected to the transformer coil wire are pressed together on the insulating plate in conjunction with a locking nut. A compression nut is provided above the locking nut. A connecting piece for connecting an external wire is provided between the locking nut and the compression nut. A first insulating sheath is provided on the outside of the locking nut, and a second insulating sheath is provided on the outside of the compression nut. An insulating terminal is provided at the end of the screw shank. By providing insulating sheaths on the compression nut and the locking nut, and insulating terminals on both the screw shanks, live conductive parts are not directly exposed during operation.

[0004] In the above-mentioned prior art, an insulating sheath is provided on the outside of the conductive screw and an insulating terminal is screwed on the top so that the conductive screw is not directly exposed to the outside. However, when the terminal is used for wiring, the terminal piece connected to the external wire is in an exposed state. During operation, the live part is still exposed to the outside, and the operator is easy to touch the live part, which is prone to electric shock accidents, posing a great safety hazard. Utility Model Content

[0005] The purpose of the present utility model is to provide a transformer / reactor lead-out wiring structure to solve the problem in the prior art that when the terminal is connected, the terminal piece of the external wire connected is in an exposed state, the charged body is exposed to the outside, and electric shock accidents are prone to occur; the purpose of the present utility model is also to provide a transformer / reactor to solve the problem in the prior art that when the terminal is connected, the terminal piece of the external wire connected is in an exposed state, the charged body is exposed to the outside, and electric shock accidents are prone to occur.

[0006] To achieve the above-mentioned purpose, the technical solution of the transformer / reactor lead-out wiring structure provided by the present invention is: it includes a wiring bolt for installation on an insulating wiring component, and also includes an insulating protective cap, the insulating protective cap includes a cylindrical body with a sealed end and an opening at the other end, so as to be sleeved on the wiring bolt and allow the wiring bolt to be located as a whole in the inner cavity of the cylindrical body, and the insulating protective cap is provided with a wire threading port for allowing the external cable connected to the wiring bolt to pass through.

[0007] As a further improvement, the cylindrical body has an extended cylindrical section on the side, and the end opening of the extended cylindrical section constitutes the threading port.

[0008] As a further improvement, the extended cylinder section is extended perpendicularly to the cylindrical main body.

[0009] As a further improvement, the inner diameter of the extension barrel section satisfies the requirement that the extension barrel section can slide on the external cable.

[0010] As a further improvement, the insulating protective cap is a PVC protective cap.

[0011] The beneficial effect is as follows: the utility model provides a brand-new transformer / reactor lead-out wiring structure. When in use, the insulating protective cap is placed on the wiring bolt through the cylindrical body with an opening, and the external cable on the wiring bolt can be passed through the threading port, thereby preventing the insulating protective cap from affecting the connection state between the wiring bolt and the external cable. The insulating protective cap completely wraps the wiring bolt inside, and there is no exposed part of the wiring bolt, which avoids the situation where the live part is exposed, can fundamentally eliminate electric shock accidents, and improve the safety of operation. At the same time, it has a simple structure and is easy to operate, which is conducive to popularization and use. In addition, the insulating protective cap can also effectively prevent the external environment such as dust and rain from invading the wiring bolt, thereby improving the stability of the connection, reducing the occurrence of failures, and reducing maintenance costs.

[0012] To achieve the above-mentioned purpose, the technical solution of the transformer / reactor provided by the present invention is: it includes an insulating wiring component, on which a transformer / reactor lead-out wiring structure is installed, the transformer / reactor lead-out wiring structure includes a wiring bolt installed on the insulating wiring component, and also includes an insulating protective cap, the insulating protective cap includes a cylindrical body with a sealed end and an opening at the other end, so as to be sleeved on the wiring bolt and place the wiring bolt as a whole in the inner cavity of the cylindrical body, and the insulating protective cap is provided with a wire threading port for allowing an external cable connected to the wiring bolt to pass through.

[0013] As a further improvement, the cylindrical body has an extended cylindrical section on the side, and the end opening of the extended cylindrical section constitutes the threading port.

[0014] As a further improvement, the extended cylinder section is extended perpendicularly to the cylindrical main body.

[0015] As a further improvement, the inner diameter of the extension barrel section satisfies the requirement that it can slide on the external cable.

[0016] As a further improvement, the insulating protective cap is a PVC protective cap.

[0017] The utility model provides an improved transformer / reactor based on the existing technology. During use, an insulating protective cap is placed on the terminal bolt through a cylindrical body with an opening. The external cable on the terminal bolt can be passed through the threading opening, thereby preventing the insulating protective cap from affecting the connection between the terminal bolt and the external cable. The insulating protective cap completely encloses the terminal bolt, and no part of the terminal bolt is exposed to the outside, thus avoiding the exposure of live parts, fundamentally eliminating electric shock accidents, and improving operational safety. At the same time, the structure is simple, the operation is easy, and it is conducive to widespread use. The insulating protective cap can also effectively prevent the external environment such as dust and rain from invading the terminal bolt, thereby improving the stability of the connection, reducing the occurrence of failures, and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a connection point of a transformer / reactor according to an embodiment of the present invention;

[0019] Figure 2 A schematic diagram of the state of the insulating protective cap of an embodiment of the transformer / reactor provided by the utility model when in use;

[0020] In the figure: 1. Terminal bolt; 2. Conductive part; 3. Insulating protective cap; 4. Insulating terminal component; 5. External cable; 6. Coil assembly; 7. Upper clamp; 8. Lower clamp. DETAILED DESCRIPTION

[0021] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0022] When wiring transformers / reactors, the cost of using terminal blocks is high. The prior art cited in the background art uses terminal bolts, but these expose live parts, posing a risk of electric shock and a threat to operator safety. Therefore, the present invention provides a transformer / reactor lead-out wiring structure and a transformer to address the problems of the prior art.

[0023] The overall design concept of the transformer / reactor provided by the utility model is:

[0024] like Figure 1-Figure 2As shown, a transformer / reactor includes an upper clamp 7, a lower clamp 8 and a coil assembly 6. An insulating wiring component 4 is installed on the upper clamp 7 on the coil assembly 6, and a transformer / reactor lead-out wiring structure is installed on the insulating wiring component 4. The transformer / reactor lead-out wiring structure includes a wiring bolt 1 installed on the insulating wiring component 4, and a conductive member 2 is connected to one side of the wiring bolt 1 and an external cable 5 is connected to the other side. The transformer / reactor lead-out wiring structure also includes an insulating protective cap 3. The insulating protective cap 3 has a cylindrical body with one end sealed and the other end having an opening. The cylindrical body is sleeved on the wiring bolt 1 through the opening so that the wiring bolt 1 is entirely located in the inner cavity of the cylindrical body.

[0025] The operator only needs to hold the insulating protective cap 3 and directly put it on the terminal bolt 1. The external cable 5 on the terminal bolt 1 can be passed through the threading port, and the insulating protective cap 3 will not affect the connection status between the terminal bolt 1 and the external cable 5. Not only is the structure simple, it is also easy to operate in actual use and is conducive to promotion. At the same time, the insulating protective cap 3 completely protects the terminal bolt 1, which means that there is no exposed part of the terminal bolt 1, thereby eliminating the occurrence of electric shock accidents and improving the safety of operation. Secondly, due to the wrapping of the insulating protective cap 3, the terminal bolt 1 is no longer directly exposed to the environment. This can prevent the corrosion of the terminal bolt 1 by environmental factors such as rainwater and dust, extend the service life of the terminal bolt 1, and also reduce problems such as poor contact caused by corrosion.

[0026] Based on the above overall introduction to the transformer / reactor of the present invention, a more specific embodiment is provided below on the basis of the overall introduction:

[0027] like Figure 2 As shown, to improve the stability of the transformer during operation, an extension section is provided on the side of the cylindrical body of the insulating protective cap 3. The distal end of the extension section opens into the aforementioned threading port. The external cable 5 near the terminal bolt 1 is supported by the extension section, helping to reduce shaking or sagging of the external cable 5 due to its own weight or external forces, thereby ensuring that the external cable 5 remains stable during the connection process and maintaining the stability and reliability of the electrical connection. The inner diameter of the extension section is sufficient to allow it to slide over the external cable 5. During installation, the insulating protective cap 3 can be pre-placed over the external cable 5 before connecting the external cable 5 to the terminal bolt 1. Finally, the operator simply moves the insulating protective cap 3 along the outside of the external cable 5 until it fits over the terminal bolt 1, making the installation process simple and efficient.

[0028] When the transformer / reactor wiring is relatively complicated, the insulating protective cap can be rotated when it is put on the wiring bolt so that the extension barrel sections extend in the same direction, thereby helping to organize and guide the wiring cables, reducing the crossing and confusion between the wiring cables, making the entire system more neat and orderly and easier to maintain.

[0029] like Figure 2 As shown, in a more preferred embodiment, the extended barrel section is arranged perpendicular to the cylindrical body. This allows the external cable 5 near its connection with the terminal bolt 1 to be better supported by the extended barrel section, preventing excessive bending of the external cable 5 near the terminal bolt 1, which could lead to internal conductor breakage or performance degradation. Of course, in other embodiments, the extended barrel section can also be arranged at a certain angle to the cylindrical body, thereby providing different guidance for the external cable.

[0030] In other embodiments, a threading opening for the external cable to pass through can also be directly opened on the cylindrical body. In order to avoid affecting the connection state of the external cable and the terminal bolt, the threading opening is a long strip opening extending from the bottom of the cylindrical body toward the top of the cylindrical body. More specifically, the threading opening is a U-shaped opening opened on the cylindrical body, and the U-shaped opening satisfies that when the insulating sheath is sleeved on the terminal bolt, the top of the U-shaped opening is slightly higher than the connection part between the terminal bolt and the external cable.

[0031] The insulating cap is made of PVC. PVC is an excellent insulating material with high resistivity, effectively blocking the passage of current, reliably preventing electric shock accidents and ensuring safe operation. PVC caps are also easy to process and mold to suit the requirements of different transformer terminal bolts. Furthermore, PVC caps are resistant to corrosion, maintaining stable performance in a variety of harsh environments and extending their service life.

[0032] Based on the above overall introduction to the transformer / reactor of the present invention, a more specific embodiment is provided below on the basis of the overall introduction:

[0033] This embodiment focuses on the detailed description of the specific shape of the cylindrical body.

[0034] like Figure 2 As shown, in this embodiment, the top of the cylindrical body of the insulating protective cap 3 gradually approaches the center of the cylindrical body, thereby forming a triangular tip at the top of the cylindrical body. When the bottom of the triangular tip is sleeved on the wiring bolt 1, the height of the top of the wiring bolt 1 is equal, which improves the installation stability of the insulating protective cap 3 and facilitates the fixing of the insulating protective cap 3 by relying on its own structure and the cooperation of the wiring bolt 1. It will not fall off without human intervention and has high installation stability.

[0035] Furthermore, in outdoor environments, such as rain or snow, the triangular tip design helps rain or snow slide off, reducing water accumulation on the top of the insulating protective cap 3, thereby keeping the insulating protective cap 3 dry and maintaining stable performance. Indoors, impurities such as dust easily slide off, reducing the possibility of dirt and dust accumulation, making the insulating protective cap 3 easier to clean and maintaining its good appearance and performance during long-term use. In other embodiments, the cylindrical body of the insulating protective cap can also be a cylindrical cylinder that is compatible with the terminal bolts.

[0036] The specific structure of the embodiment of the transformer / reactor lead-out wiring structure of the present utility model is the same as the transformer / reactor lead-out wiring structure in the embodiment of the transformer / reactor introduced above, and will not be repeated herein.

[0037] It should be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0038] In addition, the various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be based on the claims. Any equivalent structural changes made using the description and drawings of the present invention shall also be included in the scope of protection of the present invention.

Claims

1. A transformer / reactor lead-out wiring structure, comprising a terminal bolt for mounting on an insulating terminal component, characterized in that: It also includes an insulating protective cap, which includes a cylindrical body with one end sealed and the other end having an opening, so as to be sleeved on the wiring bolt and place the wiring bolt as a whole in the inner cavity of the cylindrical body. The insulating protective cap is provided with a wire threading port for passing the external cable connected to the wiring bolt.

2. The transformer / reactor lead-out wiring structure according to claim 1, characterized in that: An extended cylindrical section is provided on the side of the cylindrical body, and the terminal opening of the extended cylindrical section constitutes the threading port.

3. The transformer / reactor lead-out wiring structure according to claim 2, characterized in that: The extended cylinder section is extended perpendicularly to the cylindrical main body.

4. The transformer / reactor lead-out wiring structure according to claim 2, characterized in that: The inner diameter of the extension barrel section is such that it can slide on the external cable.

5. The transformer / reactor lead-out wiring structure according to any one of claims 1 to 4, characterized in that: The insulating protective cap is a PVC protective cap.

6. A transformer / reactor comprising an insulating wiring member, on which a transformer / reactor lead-out wiring structure is mounted, the transformer / reactor lead-out wiring structure comprising a wiring bolt mounted on the insulating wiring member, characterized in that: It also includes an insulating protective cap, which includes a cylindrical body with one end sealed and the other end having an opening, so as to be sleeved on the wiring bolt and place the wiring bolt as a whole in the inner cavity of the cylindrical body. The insulating protective cap is provided with a wire threading port for passing the external cable connected to the wiring bolt.

7. The transformer / reactor according to claim 6, characterized in that: An extended cylindrical section is provided on the side of the cylindrical body, and the terminal opening of the extended cylindrical section constitutes the threading port.

8. The transformer / reactor according to claim 7, characterized in that: The extended cylinder section is extended perpendicularly to the cylindrical main body.

9. The transformer / reactor according to claim 7, characterized in that: The inner diameter of the extension barrel section is such that it can slide on the external cable.

10. The transformer / reactor according to any one of claims 6 to 9, characterized in that: The insulating protective cap is a PVC protective cap.

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