An electrical contact plug-in for a switch cabinet

By designing an electrical contact plug-in including an insulating shell, a contact locking assembly and a transmission assembly, the problems of easy damage to the electrical contact plug-in during frequent wiring adjustments and cable movements at the electrical terminals and poor circuit stability in the prior art are solved, and higher stability and safety are achieved.

CN115101360BActive Publication Date: 2025-06-06QUANZHOU DAXIYANG ELECTRIC POWER TECH CO LTD
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Patent Information

Application Number
CN202210770813.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-06-30
Publication Date
2025-06-06
Estimated Expiration
2042-06-30

AI Technical Summary

Technical Problem

During frequent wiring adjustment and cable movement of electrical contact plug-ins in existing switch cabinets, they can easily lead to terminal damage, poor circuit stability and high risk of circuit breaking.

Method used

An electrical contact plug-in including an insulating housing, a contact locking assembly and a transmission assembly are designed. The contact locking assembly realizes stable connection of cables through installation cylinders, insulating blocks, connecting plates, conductive blocks and other components, while the transmission assembly ensures power transmission and prevents inversion through structures such as active bevel gears, driven bevel gears and ratchets.

Benefits of technology

This design improves the stability and safety of the electrical contact plug-ins, avoids problems such as cable falls off, wear and short circuits, and creepage arcs, ensures the continuous working stability of the circuit, and reduces the risk of safety accidents caused by mistaken contact.

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Abstract

The present invention discloses an electrical contact plug-in for a switch cabinet, comprising: an insulating shell, a contact locking assembly, arranged inside the insulating shell, wherein: the contact locking assembly is provided with three groups, each group of contact locking assemblies comprises a mounting cylinder, an insulating block, a mounting groove, a connecting plate, a conductive block, a driving plate, a fixing frame, a moving block, a transmission assembly and a prompt assembly, and the mounting cylinders are all embedded in the inner wall of the insulating shell. The transmission assembly can facilitate the transmission of power, facilitate the rapid completion of circuit breaking during the maintenance process, and avoid electric shock safety accidents caused by virtual circuit connection. The outer walls of the active bevel gear and the driven bevel gear are meshed and connected to each other for transmission. A ratchet is fixedly arranged on one side of the outer wall of the driven bevel gear. The ratchet can ensure that the transmission assembly will not reverse, making the connection state of the circuit unstable, and the ratchet will be blocked by an electromagnetically controlled clamping rod during the application process to ensure the anti-reversal function of the ratchet.
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Description

Technical Field

[0001] The invention belongs to the technical field of switch cabinets, and in particular relates to an electrical contact plug-in unit for a switch cabinet. Background Art

[0002] Food processing refers to the grain grinding and feed processing directly using agricultural, forestry, animal husbandry and fishery products as raw materials. The main function of the switch cabinet is to open and close, control and protect electrical equipment in the process of power generation, transmission, distribution and power conversion in the power system. The components in the switch cabinet mainly include circuit breakers, disconnectors, load switches, operating mechanisms, mutual inductors and various protective devices. There are many ways to classify switch cabinets. For example, according to the installation method of circuit breakers, they can be divided into removable switch cabinets and fixed switch cabinets; or according to the different cabinet structures, they can be divided into open switch cabinets, metal-enclosed switch cabinets, and metal-enclosed armored switch cabinets; according to different voltage levels, they can be divided into high-voltage switch cabinets, low-voltage switch cabinets, etc., which are mainly suitable for power plants, substations, petrochemicals, metallurgical steel rolling, light industry and textiles, factories and mines, residential areas, high-rise buildings and other different occasions.

[0003] The wiring and circuit connection involved in the switch cabinet often require the use of terminals. The existing electrical contact plug-ins are often mainly fixed with bolts. In the subsequent use process, it is found that the frequent wiring adjustments will accelerate the damage of the terminals, and ultimately make the continuous working stability of the circuit poor. In the subsequent use process, it is found that when the power-end cable needs to be moved frequently, the terminal is very easy to slip and loosen, which is very easy to cause a circuit breaker. Summary of the invention

[0004] The technical solution adopted by the present invention is as follows: an electrical contact plug-in for a switch cabinet, comprising:

[0005] Insulation shell;

[0006] A contact locking assembly is arranged inside an insulating shell, wherein: the contact locking assembly is provided with three groups, each group of the contact locking assembly comprises a mounting cylinder, an insulating block, a mounting groove, a connecting plate, a conductive block, a driving plate, a fixing frame, a moving block, a transmission assembly and a prompt assembly, the mounting cylinders are all embedded in the inner wall of the insulating shell, the insulating blocks are all rotatably embedded in the inside of the mounting cylinder, the mounting groove is provided on the inner wall of the insulating block, the connecting plate is slidably embedded in the inner wall of the insulating block, the bottom end of the conductive block passes through the mounting cylinder and is slidably embedded in the outer wall of one end of the connecting plate, the driving plate and the moving block match each other, the moving block is fixedly arranged on the outer wall of one end of the conductive block away from each other through a fixing frame, the transmission assembly and the driving plate are mutually transmission-connected, and the prompt assembly is arranged on the outer wall of the mounting cylinder.

[0007] Furthermore, the transmission components include a driving bevel gear, a driven bevel gear and a locking wheel.

[0008] Furthermore, the outer walls of the active bevel gear and the driven bevel gear are meshed and transmission-connected with each other, and a ratchet is fixedly provided on one side of the outer wall of the driven bevel gear.

[0009] Furthermore, one side of the outer wall of the ratchet is fixedly arranged at the center of one side of the outer wall of the driving plate through a rotating shaft, a mounting plate is fixedly arranged inside the insulating shell, and the outer wall of the mounting plate is clamped at the outer wall of the driving plate.

[0010] Furthermore, the prompt components all include a prompt tube, a support spring and a clamping block.

[0011] Furthermore, the prompt tube is fixedly arranged on the outer wall of the installation tube, the support spring is fixedly arranged on the center of one side of the inner wall of the prompt tube, and the other end of the support spring is fixedly arranged on the outer wall of one end of the clamping block.

[0012] Furthermore, the outer wall of each insulating block is provided with four positioning holes along the circumferential surface, and the positioning holes match the clamping blocks.

[0013] Furthermore, a magnetic ring is sleeved on the outer wall of the bottom end of each conductive block.

[0014] Furthermore, a rack is fixedly arranged on the outer wall of one end of the connecting plate, and torsion bars are fixedly and rotatably arranged on both sides of the inner wall of the mounting groove, and the torsion bars and the rack match each other.

[0015] Furthermore, a shielding plate is inserted into one side of the outer wall of the installation tube through rotation of a rotating shaft.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0017] In the present invention, the transmission component can facilitate the transmission of power and quickly complete the circuit breaking during the maintenance process to avoid electric shock safety accidents caused by virtual circuit connection. The outer walls of the active bevel gear and the driven bevel gear are meshed with each other for transmission connection. A ratchet is fixedly provided on one side of the outer wall of the driven bevel gear. The ratchet can ensure that the transmission component will not reverse, making the connection state of the circuit unstable. During the use of the ratchet, an electromagnetically controlled clamping rod will be used to block it to ensure the anti-reverse function of the ratchet. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A half-section perspective view of an electrical contact plug-in for a switch cabinet according to the present invention;

[0019] Figure 2 A three-dimensional diagram of an electrical contact plug-in installation cylinder for a switch cabinet according to the present invention;

[0020] Figure 3 A three-dimensional diagram of an electrical contact plug-in insulating block for a switch cabinet according to the present invention;

[0021] Figure 4 A three-dimensional diagram of an electrical contact plug-in support spring for a switch cabinet according to the present invention;

[0022] Figure 5 A three-dimensional diagram of an electrical contact plug-in card connection block for a switch cabinet according to the present invention;

[0023] Figure 6 A three-dimensional diagram of a conductive block of an electrical contact plug-in for a switch cabinet according to the present invention;

[0024] Figure 7 A three-dimensional diagram of an electrical contact plug-in drive board for a switch cabinet according to the present invention;

[0025] Figure 8 The present invention is a three-dimensional diagram of an electrical contact plug-in moving block for a switch cabinet.

[0026] Markings in the figure: 1. Insulating shell; 2. Mounting cylinder; 3. Prompt tube; 4. Active bevel gear; 5. Driven bevel gear; 6. Ratchet; 7. Insulating block; 8. Mounting groove; 9. Connecting plate; 10. Mounting plate; 11. Support spring; 12. Card block; 13. Torsion bar; 14. Conductive block; 15. Drive plate; 16. Fixed frame; 17. Moving block; 101. Shielding plate; 102. Locking wheel; 701. Positioning hole; 901. Rack; 1401. Magnetic ring. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] Embodiment 1

[0029] Reference Figure 1 - Figure 8 :An electrical contact plug-in for a switch cabinet, comprising:

[0030] Insulation shell 1;

[0031] The contact locking assembly is arranged inside the insulating shell 1, wherein: the contact locking assembly is provided with three groups, each group of the contact locking assembly comprises a mounting tube 2, an insulating block 7, a mounting groove 8, a connecting plate 9, a conductive block 14, a driving plate 15, a fixing frame 16, a moving block 17, a transmission assembly and a prompt assembly. Through the contact locking assembly, when the power-using end cable needs to be frequently moved and disassembled for maintenance, the cable falling off and abrasion short circuit problems caused by traditional bolt connection and clamping are avoided, and the stable and continuous operation of the circuit is guaranteed to the greatest extent, and creepage and arc will not be generated, thereby ensuring the safety of use and eliminating the problem. To prevent accidental touch and safety accidents, the mounting tubes 2 are embedded in the inner wall of the insulating shell 1, the insulating blocks 7 are rotatably embedded in the interior of the mounting tube 2, the mounting grooves 8 are opened in the inner wall of the insulating block 7, the connecting plate 9 is slidably embedded in the inner wall of the insulating block 7, the bottom end of the conductive block 14 passes through the mounting tube 2 and is slidably embedded in the outer wall of one end of the connecting plate 9, the driving plate 15 and the moving block 17 match each other, and the moving block 17 is fixedly arranged on the outer wall of the conductive block 14 at one end away from each other through the fixing frame 16, the transmission assembly and the driving plate 15 are connected to each other in transmission, and the prompt assembly is arranged on the outer wall of the mounting tube 2.

[0032] Reference Figure 1 - Figure 8The transmission components include an active bevel gear 4, a driven bevel gear 5 and a locking wheel 102. The transmission components can facilitate the transmission of power and quickly complete the circuit breaking during the maintenance process to avoid electric shock safety accidents caused by virtual circuit connection. The outer walls of the active bevel gear 4 and the driven bevel gear 5 are meshed with each other for transmission connection. A ratchet 6 is fixedly arranged on one side of the outer wall of the driven bevel gear 5. The ratchet 6 can ensure that the transmission component will not reverse, making the connection state of the circuit unstable. During the use of the ratchet 6, an electromagnetically controlled clamping rod will be used to block it to ensure the anti-reversal function of the ratchet 6. One side of the outer wall of the ratchet 6 is fixedly arranged at the center of one side of the outer wall of the driving plate 15 through a rotating shaft. The outer wall of the driving plate 15 is provided with a vortex driving groove, and the vortex driving groove and the moving block 17 are clamped with each other. The outer wall of the driving plate 15 is provided with a moving groove and the moving block 17 are clamped with each other to ensure movement. The high-precision movement of the block 17, the interior of the insulating shell 1 is fixedly provided with a mounting plate 10, and the outer wall of the mounting plate 10 is clamped on the outer wall of the driving plate 15, the prompt components include a prompt tube 3, a support spring 11 and a clamping block 12, the prompt tube 3 is fixedly provided on the outer wall of the mounting tube 2, the support spring 11 is fixedly provided at the center of one side of the inner wall of the prompt tube 3, the other end of the support spring 11 is fixedly provided on the outer wall of one end of the clamping block 12, the outer wall of each insulating block 7 is provided with four positioning holes 701 along the circumferential surface, and the positioning holes 701 and the clamping block 12 match each other, the outer wall of the bottom end of each conductive block 14 is sleeved with a magnetic ring 1401, a rack 901 is fixedly provided on the outer wall of one end of the connecting plate 9, and a torsion bar 13 is fixedly rotatably provided on both sides of the inner wall of the mounting groove 8, and the torsion bar 13 and the rack 901 match each other, and a baffle plate 101 is inserted on one side of the outer wall of the mounting tube 2 through a rotating shaft.

[0033] Working principle: First, the power supply cable is electrically connected to the conductive block 14, and the power-end cable is connected to the connecting plate 9. When conduction is required, the connecting plate 9 is first embedded in the inside of the mounting groove 8, and the rack 901 and the torsion bar 13 are mutually clamped to prevent the connecting plate 9 from falling off. Then the insulating block 7 is embedded in the inside of the mounting tube 2. At this time, the locking wheel 102 is driven, and the active bevel gear 4 drives the driven bevel gear 5 to rotate, so that the rotating plate drives the moving plate to move toward each other, and the conductive plate is dropped through the fixed frame 16 until the two magnetic rings 1401 attract each other, so that the power connection plate and the conductive block 14 are completely electrically connected. When the insulating block 7 is installed, the supporting spring 11 drives the clamping block 12 to move, so that the clamping block 12 and the positioning hole 701 are clamped to each other. The impact sound of the clamping completion can help the staff determine whether it is installed in place, and then the shielding plate 101 is used to complete the isolation of the mounting groove 8 and the mounting tube 2 to avoid exposure of the conductive structure.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electrical contact plug-in for a switch cabinet, It is characterized in that include: Insulating shell (1); A contact locking assembly is arranged inside an insulating shell (1), wherein: the contact locking assembly is provided in three groups, each group of the contact locking assembly comprises a mounting cylinder (2), an insulating block (7), a mounting groove (8), a connecting plate (9), a conductive block (14), a driving plate (15), a fixing frame (16), a moving block (17), a transmission assembly and a prompt assembly, the mounting cylinder (2) is embedded in the inner wall of the insulating shell (1), the insulating block (7) is rotatably embedded in the interior of the mounting cylinder (2), and the mounting groove (8) is provided with The connecting plate (9) is slidably embedded in the inner wall of the insulating block (7), the bottom end of the conductive block (14) penetrates the mounting tube (2) and is slidably embedded in the outer wall of one end of the connecting plate (9), the driving plate (15) and the moving block (17) match each other, the moving block (17) is fixedly arranged on the outer wall of one end of the conductive block (14) away from each other through a fixing frame (16), the transmission component and the driving plate (15) are mutually transmission-connected, and the prompt component is arranged on the outer wall of the mounting tube (2); The transmission assembly comprises a driving bevel gear (4), a driven bevel gear (5) and a locking wheel (102); the outer walls of the driving bevel gear (4) and the driven bevel gear (5) are meshed with each other for transmission connection, and a ratchet (6) is fixedly arranged on one side of the outer wall of the driven bevel gear (5); one side of the outer wall of the ratchet (6) is fixedly arranged at the center of one side of the outer wall of the driving plate (15) via a rotating shaft, and a mounting plate (10) is fixedly arranged inside the insulating shell (1), and the outer wall of the mounting plate (10) is clamped on the outer wall of the driving plate (15).

2. An electrical contact plug for a switch cabinet as claimed in claim 1, Features: The prompting assembly comprises a prompting tube (3), a supporting spring (11) and a clamping block (12).

3. An electrical contact plug for a switch cabinet as claimed in claim 2, Features: The prompt tube (3) is fixedly arranged on the outer wall of the installation tube (2), the support spring (11) is fixedly arranged at the center of one side of the inner wall of the prompt tube (3), and the other end of the support spring (11) is fixedly arranged on the outer wall of one end of the clamping block (12).

4. An electrical contact plug for a switch cabinet as claimed in claim 3, Features: The outer wall of each insulating block (7) is provided with four positioning holes (701) along the circumferential surface, and the positioning holes (701) and the clamping blocks (12) match each other.

5. An electrical contact plug for a switch cabinet as claimed in claim 4, Features: A magnetic ring (1401) is sleeved on the outer wall of the bottom end of each conductive block (14).

6. An electrical contact plug for a switch cabinet as claimed in claim 5, Features: A rack (901) is fixedly arranged on the outer wall of one end of the connecting plate (9), and torsion bars (13) are fixedly and rotatably arranged on both sides of the inner wall of the mounting groove (8), and the torsion bars (13) and the rack (901) match each other.

7. An electrical contact plug-in for a switch cabinet as claimed in claim 6, Features: A shielding plate (101) is inserted and rotatably mounted on one side of the outer wall of the installation cylinder (2) via a rotating shaft.

Citation Information

Patent Citations

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    CN107611837A

  • Wall-mounted low-voltage switch cabinet

    CN213367090U