Internal contact wiring device of voltage regulating switch

Abstract

The utility model provides an internal contact wiring device of a voltage regulating switch. The internal contact wiring device is used for solving the problem of safety caused by excessive splicing point positions and the problem of large size of the voltage regulating switch in the prior art. The wiring device comprises a mounting plate, a bottom plate is fixed to the bottom surface of the mounting plate, a plurality of lead holes are formed in the mounting plate in a penetrating mode, pressure regulating contacts are arranged in the lead holes in a penetrating mode, a plurality of upper grooves are formed in one side of the mounting plate, lower grooves corresponding to the upper grooves are formed in the bottom plate, and the upper grooves and the lower grooves are matched to fix outer contact mounting grooves of outer contacts. A static contact lead is welded to the bottom end of the voltage regulating contact, an outer contact lead is welded to the end, arranged between the mounting plate and the bottom plate, of the outer contact, and the outer contact lead and the static contact lead are in one-to-one correspondence and are connected through a crimping copper pipe to form a lead passage. According to the utility model, through the connection of the crimping copper pipes, the number of splicing points is reduced, so that the current transmission efficiency is improved, and the risk of fire caused by temperature rise of equipment is reduced.

Description

Technical Field

[0001] The utility model relates to the field of voltage regulating switches, in particular to a contact wiring device inside a voltage regulating switch. Background Art

[0002] The contact wiring device is responsible for realizing the transmission and distribution of current inside the voltage regulating switch. When the voltage regulating switch is in different gears, the contact wiring device can ensure that the current flows along a predetermined path, so as to realize the voltage regulation. In the prior art, bolts are usually welded to the regulating contacts and the external contacts, and the bolts are connected by a conductive plate with holes at both ends. This connection method has some drawbacks in high-voltage systems. The traditional screw connection method requires multiple connection points. Multiple connection points increase the resistance, thereby reducing the current transmission efficiency, easily causing overheating problems, and increasing the risk of fire. In addition, due to the certain length of the bolts themselves, the method of using bolts for fixation will increase the volume of the voltage regulating switch, thus occupying more space inside the transformer. Content of the Utility Model

[0003] The utility model provides a contact wiring device inside a voltage regulating switch, which solves the safety problems caused by too many connection points in the prior art and the problem of the large volume of the voltage regulating switch.

[0004] The technical solution of the utility model is realized as follows:

[0005] A contact wiring device inside a voltage regulating switch includes a mounting plate. A bottom plate is fixed to the bottom surface of the mounting plate. A plurality of lead holes are provided through the mounting plate, and regulating contacts are inserted into the lead holes. A plurality of upper grooves are provided on one side of the mounting plate, and corresponding lower grooves are provided on the bottom plate. The upper grooves and the lower grooves cooperate to fix the external contact mounting grooves of the external contacts. A static contact lead is welded to the bottom end of the regulating contact, and an external contact lead is welded to one end of the external contact placed between the mounting plate and the bottom plate. The external contact leads and the static contact leads correspond one by one and are connected by crimping copper tubes to form a lead path.

[0006] Further, a plurality of lead slots for accommodating the lead paths are provided on the surface of the mounting plate close to the bottom plate. The lead slots can further isolate different lead paths, provide an additional insulation protection layer, and reduce electrical faults caused by insulation failure.

[0007] Further, a regulating contact mounting groove for supporting the regulating contact is provided on one side of the lead hole, and the welding point of the regulating contact and the static contact lead is placed inside the lead hole. Placing the welding point in the mounting groove can provide a stable and protected environment for welding, which helps to improve the quality and consistency of welding.

[0008] Furthermore, the outer contact head mounting grooves are arranged in a staggered high-low manner. Due to the staggered high-low of the mounting grooves, the space can be utilized more flexibly during wiring, avoiding the crossing and congestion between wire harnesses.

[0009] Furthermore, a plurality of support columns are provided on the top surface of the mounting plate. By providing the support columns, the voltage regulating contact heads higher than the mounting plate can be protected to prevent the voltage regulating contact heads from tilting due to bumping, resulting in inconvenient installation.

[0010] Furthermore, both the outer contact head lead and the static contact head lead are flexible copper stranded wires. The flexible copper stranded wires are easy to bend and operate, which makes it easier to adapt to compact or complex spaces during wiring.

[0011] The beneficial effects that can be produced by this technical solution.

[0012] In the present utility model, the connection by crimping the copper tube reduces the continuation points compared with the traditional connection method, reduces the increase in resistance brought by the traditional screw connection method, thereby improving the current transmission efficiency, reducing the energy loss caused by resistance heating and the risk of fire caused by the temperature rise of the equipment. Through the flexible outer contact head lead and static contact head lead, it is convenient to finely adjust the position of the lead path during the assembly process, and adjust the length and position of the lead according to different application requirements, improving the adaptability and flexibility of the lead path. It is also possible to facilitate the adjustment of the position of the lead path through the flexible outer contact head lead and static contact head lead, making the device more compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model;

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the mounting plate of the present utility model;

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the bottom of the mounting plate of the present utility model;

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the mounting plate and the bottom plate of the present utility model;

[0018] Figure 5 It is a three-dimensional structural schematic diagram of the lead path of the present utility model;

[0019] Figure 6 For Figure 2 The partial enlarged schematic view at position A in

[0020] Wherein: 1. mounting plate, 2. bottom plate, 3. lead hole, 4. voltage regulating contact, 5. upper groove, 6. lower groove, 7. external contact, 8. external contact mounting groove, 9. static contact lead, 10. external contact lead, 11. crimping copper tube, 12. lead path, 13. lead slot position, 14. voltage regulating contact mounting groove, 15. support column. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] As Figures 1-5 shown, the embodiment of the present invention provides a contact wiring device inside a voltage regulating switch, including a mounting plate 1. A bottom plate 2 is fixed to the bottom surface of the mounting plate 1. A plurality of lead holes 3 are provided through the mounting plate 1, and a voltage regulating contact 4 is inserted through the lead holes 3. A plurality of upper grooves 5 are provided on one side of the mounting plate 1, and lower grooves 6 corresponding to the upper grooves 5 are provided on the bottom plate 2. The upper grooves 5 and the lower grooves 6 cooperate to form an external contact mounting groove 8, and the external contact mounting groove 8 fixes the external contact 7. A static contact lead 9 is welded to the bottom end of the voltage regulating contact 4, and an external contact lead 10 is welded to one end of the external contact 7 placed between the mounting plate 1 and the bottom plate 2. The external contact lead 10 and the static contact lead 9 correspond one by one and are connected by a crimping copper tube 11 to form a lead path 12. Both the mounting plate 1 and the bottom plate 2 are made of insulating materials. The voltage regulating contact 4 is a rectangular copper bar. The external contact 7 is a special-shaped copper bar. Using insulating materials for the mounting plate 1 and the bottom plate 2 can effectively prevent electrical short circuits and improve the safety of the entire device. The voltage regulating contact 4 is a rectangular copper bar, and the external contact 7 is a special-shaped copper bar. The shape of the copper bar can be used to optimize the current flow path, reduce resistance, improve the conduction efficiency, and can also better combine with the mounting plate 1 and the bottom plate 2 to improve the stability of the overall structure.

[0023] During the assembly process, the voltage regulating contact 4 is welded to the static contact lead 9, so that the bottom end of the voltage regulating contact 4 is placed inside the lead hole 3 and the top end is on the top surface. Then, the external contact lead 10 and the static contact lead 9 are connected through the crimping copper tube 11. Through the crimping copper tube 11, the external contact lead 10 and the static contact lead 9 can be crimped together to form a lead path 12. The connection through the crimping copper tube 11 reduces the number of connection points compared with the traditional connection method, reduces the increase in resistance caused by the traditional screw connection method, thereby improving the current transmission efficiency, reducing the energy loss caused by resistance heating and the risk of fire caused by the temperature rise of the equipment. Then, the external contact lead 10 is placed in the upper groove 5, and the external contact 7 is fixed through the lower groove 6 of the bottom plate 2. The connection between the bottom plate 2 and the mounting plate 1 can also achieve the effect of fixing the lead path 12. Before crimping the lead path 12, the crimping copper tube 11 can assemble and compare the lead path 12 to ensure that the lengths of the external contact lead 10 and the static contact lead 9 are appropriate. Fixing the external contact 7 through the cooperation of the upper groove 5 and the lower groove 6 can make the equipment more stable during operation and reduce the problem of poor contact caused by vibration and other reasons. If there is a problem with the lead path 12, the crimping copper tube 11 can be disassembled to quickly locate the problem and perform maintenance or replacement, greatly improving the maintainability of the equipment.

[0024] As Figure 3 shown, on the side of the mounting plate 1 close to the bottom plate 2, there are a plurality of lead slots 13 for accommodating the lead path 12. Through the lead slots 13, the lead path 12 can be positioned and insulated, and the adjacent lead paths 12 can be prevented from coming into contact, thereby preventing the risk of equipment short-circuit fire or damage. The lead slots 13 can also be used as a guide during assembly to ensure that the lead path 12 is installed in the correct position, thereby improving the assembly accuracy of the overall device, and maintenance personnel can easily identify the lead path 12 that needs to be maintained. The existence of the lead slots 13 allows for more efficient use of the space between the mounting plate 1 and the bottom plate 2, making the wiring neater, reducing wire crossing and chaos, thereby reducing the volume of the entire device, and can also serve as a reinforcing rib to enhance the structural strength of the mounting plate 1.

[0025] As Figure 2 、 6As shown, a voltage regulating contact mounting groove 14 for supporting the voltage regulating contact 4 is provided on one side of the lead hole 3, and the solder joint of the voltage regulating contact 4 and the static contact lead 9 is placed inside the lead hole 3. The voltage regulating contact mounting groove 14 facilitates the installation and fixation of the voltage regulating contact 4, preventing the fixed voltage regulating contact 4 from shaking and falling off. It can also effectively protect the solder joint from the external environment, thereby reducing the risk of solder joint corrosion and oxidation, and enhancing the stability and reliability of the electrical connection. Since the solder joint is located on one side of the voltage regulating contact 4, it is convenient to weld the voltage regulating contact 4 and the static contact lead 9, ensuring that the static contact lead 9 and the voltage regulating contact 4 have sufficient contact area, contributing to improving the reliability of the electrical connection and reducing the contact resistance.

[0026] As Figure 4 shown, the outer contact mounting grooves 8 are arranged in a staggered height pattern. The staggered height layout of the outer contact mounting grooves 8 can make more effective use of space, allowing more outer contacts 7 to be installed in a limited area, and avoiding the crossing and congestion of wire harnesses, reducing electrical faults and safety hazards caused by improper wiring, thereby improving the compactness of the device. Moreover, the staggered height layout facilitates the inspection of each outer contact 7, thus improving the efficiency of maintenance work.

[0027] As Figures 1-2 shown, a plurality of support columns 15 are provided on the top surface of the mounting plate 1. By providing the support columns 15, the voltage regulating contact 4 above the mounting plate 1 can be protected from being knocked and causing the voltage regulating contact 4 to tilt, resulting in inconvenient installation. On the automated production line, the support columns 15 can serve as positioning points to assist the robotic arm in accurately and quickly placing and welding the voltage regulating contact 4, thereby improving production efficiency and consistency.

[0028] Both the outer contact lead 10 and the static contact lead 9 are flexible copper stranded wires. The flexible copper stranded wire has good flexibility, can more easily pass through narrow spaces or be arranged around obstacles, simplifies the assembly process, and can easily adapt to various complex wiring requirements, making the device more compact.

[0029] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An internal contact wiring device for a voltage regulating switch, characterized in that: The invention comprises a mounting plate (1), a bottom plate (2) is fixed to the bottom surface of the mounting plate (1), a plurality of lead holes (3) are formed on the mounting plate (1), a voltage regulating contact (4) is formed in the lead holes (3), a plurality of upper grooves (5) are formed on one side of the mounting plate (1), a lower groove (6) corresponding to the upper groove (5) is formed on the bottom plate (2), the upper groove (5) and the lower groove (6) cooperate to form an external contact mounting groove (8), the external contact mounting groove (8) can fix the external contact (7), a static contact lead (9) is welded to the bottom end of the voltage regulating contact (4), an external contact lead (10) is welded to one end of the external contact (7) disposed between the mounting plate (1) and the bottom plate (2), the external contact lead (10) and the static contact lead (9) correspond to each other one by one, and are connected through a crimped copper tube (11) to form a lead passage (12).

2. The internal contact wiring device of a voltage regulating switch according to claim 1, characterized in that: A plurality of lead wire slots (13) for accommodating lead wire passages (12) are provided on one side of the mounting plate (1) close to the base plate (2).

3. The internal contact wiring device of a voltage regulating switch according to claim 1, characterized in that: A voltage regulating contact mounting groove (14) for supporting the voltage regulating contact (4) is provided on one side of the lead hole (3), and a welding point between the voltage regulating contact (4) and the static contact lead wire (9) is placed in the lead hole (3).

4. The internal contact wiring device of a voltage regulating switch according to claim 1, characterized in that: The external contact head mounting grooves (8) are arranged in a staggered manner in height.

5. The internal contact wiring device of a voltage regulating switch according to claim 1, characterized in that: The top surface of the mounting plate (1) is provided with a plurality of support columns (15).

6. The internal contact wiring device of a voltage regulating switch according to claim 1, characterized in that: The external contact lead wire (10) and the static contact lead wire (9) are both soft copper stranded wires.

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