An assembled mechanical interlocking terminal block device

Abstract

This utility model relates to the field of electrical engineering, specifically to a prefabricated mechanical interlocking terminal block device, which solves the problems of complex processing procedures, high processing costs, cumbersome installation, and poor protection and electrical safety performance of current mechanical interlocking contactor main circuit connecting wires. This device combines a cover, a housing, and multiple pairs of plugs to achieve a prefabricated mechanical interlocking terminal block structure and a prefabricated interlocking busbar. The overall design is divided into two halves; the housing has an independent circuit chamber, and each circuit has a spacer cover, making each phase circuit an independent, sealed conductive chamber. This reduces heat generation and breakdown when the prefabricated interlocking busbar is energized. Simultaneously, the insulating ribs designed on the inner side of the spacer cover effectively improve electrical clearance and creepage distance, thereby reducing the volume of the prefabricated interlocking busbar and greatly ensuring the safety, ease of installation, and protection level of the interlocking terminal block.

Description

Technical Field

[0001] This utility model relates to the field of electrical engineering, specifically to an assembled mechanical interlocking terminal block device. Background Technology

[0002] With the increasing load density of power distribution systems and the market demand for miniaturized distribution cabinets, as well as the significant need for safety, small, high-current electrical components are required to meet these market demands. Currently, the main circuit connection wires of mechanical interlocking contactors both domestically and internationally are connected by two types of wires: cables and encapsulated conductor bars. Cables are installed by bending them according to the design dimensions using bending jigs. Encapsulated conductor bars are made by first processing the plugs using molds or jigs, and then performing secondary encapsulation. This requires extremely high precision for the metal plugs and encapsulation molds, but also results in a very high rate of defective parts. Existing mechanical interlocking contact wires have the following drawbacks: complex processing procedures, high processing costs, cumbersome installation, the need to design color codes for the connecting wires to distinguish between the A, B, and C phase circuits, inconvenient wiring for users, and poor protection performance, electrical safety performance, and scalability. Utility Model Content

[0003] This utility model provides an assembled mechanical interlocking terminal block device to solve the problems mentioned above.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A prefabricated mechanical interlocking terminal block device includes a cover, a housing at the bottom of the cover, a first plug, a second plug and a third plug vertically and symmetrically arranged on the cover, and a C-phase insulation plate, a B-phase insulation plate and an A-phase insulation plate corresponding to the first plug, the second plug and the third plug in the housing.

[0006] Furthermore, the cover body has multiple riveting posts on its side, and the first plug, the second plug and the third plug are all connected to the riveting posts. The cover body also has multiple first wiring holes, first auxiliary wiring holes, tunnel holes and cave entrances in sequence.

[0007] Furthermore, the housing is provided with C-phase insulation groove, B-phase insulation groove and A-phase insulation groove matching the C-phase insulation plate, B-phase insulation plate and A-phase insulation plate. The housing is also provided with plug insulation holes matching the first plug, second plug and third plug. In addition, a plurality of second auxiliary wiring holes, second wiring holes and positioning riveting cylindrical holes are sequentially opened on the housing.

[0008] Furthermore, a first insulating fixing groove is provided at one end of the C-phase insulating plate, a first positioning hole is provided at the other end of the C-phase insulating plate, and a plurality of first reinforcing ribs are provided on the side of the C-phase insulating plate.

[0009] Furthermore, a second insulation fixing groove is provided at one end of the B-phase insulation plate, a second positioning hole is provided at the other end of the B-phase insulation plate, and a plurality of second reinforcing ribs are also provided on the side of the B-phase insulation plate.

[0010] Furthermore, a third insulating fixing groove is provided at one end of the A-phase insulating plate, a third positioning hole is provided at both ends of the A-phase insulating plate, and a plurality of third reinforcing ribs are provided at the other end of the A-phase insulating plate.

[0011] Furthermore, the assembled mechanical interlocking terminal block device is an inner and outer containment structure, comprising an inner and outer containment structure consisting of a housing, a plug, an insulating plate, and a cover that are assembled and connected in sequence.

[0012] Furthermore, the housing is provided with multiple "◎" positioning riveting cylindrical holes, insulating grooves, wiring holes, and plug insulating holes.

[0013] Furthermore, the C-phase insulating plate is provided with a "U"-shaped insulating fixing groove.

[0014] This utility model has the following beneficial effects:

[0015] This utility model provides a prefabricated mechanical interlocking terminal block device. By combining a cover, a housing, and multiple pairs of plugs to integrate electrical functions, it achieves a prefabricated mechanical interlocking terminal block structure and a prefabricated interlocking busbar. The overall structure is divided into two halves, with the housing having an independent circuit chamber and each circuit having a spacer cover, creating an independent, sealed conductive chamber for each phase circuit. This reduces heat generation and breakdown when the prefabricated interlocking busbar is energized. Simultaneously, the use of insulating ribs on the inner side of the spacer cover effectively improves electrical clearance and creepage distance, thereby reducing the volume of the prefabricated interlocking busbar. This significantly ensures the safety, ease of installation, and protection level of the interlocking terminal block, solving the problems of complex processing procedures, high processing costs, cumbersome installation, and poor protection and electrical safety performance of current mechanical interlocking contactor main circuit connecting wires.

[0016] This utility model aligns and inserts multiple plugs into the terminal block of the interlocking contactor according to the corresponding contactor terminals. The main circuit power line and the load-side conductive line pass through the wire port of the assembled interlocking terminal block device. The conductive plugs of the assembled interlocking busbar, the main circuit power line, and the load-side conductive line are tightened using the contactor main circuit screws, which greatly facilitates the user's installation. Attached Figure Description

[0017] Figure 1 This is the front view of this utility model.

[0018] Figure 2 This is a schematic diagram of the shell structure of this utility model.

[0019] Figure 3This is a schematic diagram of the cover structure of this utility model.

[0020] Figure 4 This is a schematic diagram of the C-phase insulating plate of this utility model.

[0021] Figure 5 This is a schematic diagram of the B-phase insulating plate of this utility model.

[0022] Figure 6 This is a schematic diagram of the A-phase insulating plate of this utility model.

[0023] Figure 7 This is a schematic cross-sectional view of the assembly of this utility model.

[0024] Figure 8 This is a schematic diagram illustrating the application of this utility model.

[0025] The meanings of the reference numerals in the attached figures are as follows:

[0026] 1. Cover; 2. First plug; 3. Second plug; 4. Third plug; 5. Housing; 6. C-phase insulation board; 7. B-phase insulation board; 8. A-phase insulation board; 9. Interlocking contactor; 101. Riveting post; 102. First wiring hole; 103. First auxiliary wiring hole; 104. Tunnel hole; 105. Cave-shaped doorway; 501. A-phase insulation groove; 502. B-phase insulation groove; 503. C-phase insulation groove; 504. Second auxiliary wiring hole; 505. Plug insulation hole; 506. Second wiring hole; 507. Positioning riveting cylindrical hole; 601. First insulation fixing groove; 602. First positioning hole; 603. First reinforcing rib; 701. Second insulation fixing groove; 702. Second positioning hole; 703. Second reinforcing rib; 801. Third insulation fixing groove; 802. Third positioning hole; 803. Third reinforcing rib. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0028] like Figure 1-8 As shown, an assembled mechanical interlocking terminal block device includes a cover 1, a housing 5 at the bottom of the cover 1, a first plug 2, a second plug 3 and a third plug 4 vertically and symmetrically arranged at the cover 1, and a C-phase insulation plate 6, a B-phase insulation plate 7 and an A-phase insulation plate 8 corresponding to the first plug 2, the second plug 3 and the third plug 4 inside the housing 5.

[0029] The cover 1 has multiple riveting posts 101 on its side, and the first plug 2, the second plug 3 and the third plug 4 are all connected to the riveting posts 101. The cover 1 also has multiple first wiring holes 102, first auxiliary wiring holes 103, tunnel holes 104 and cave-shaped doorways 105 in sequence.

[0030] The housing 5 is provided with a C-phase insulation groove 503, a B-phase insulation groove 502, and an A-phase insulation groove 501 that match the C-phase insulation plate 6, the B-phase insulation plate 7, and the A-phase insulation plate 8. The housing 5 is also provided with a plug insulation hole 505 that matches the first plug 2, the second plug 3, and the third plug 4. In addition, the housing 5 is provided with a plurality of second auxiliary wiring holes 504, second wiring holes 506, and positioning riveting cylindrical holes 507 in sequence.

[0031] One end of the C-phase insulation plate 6 is provided with a first insulation fixing groove 601, and the other end of the C-phase insulation plate 6 is provided with a first positioning hole 602. The side of the C-phase insulation plate 6 is also provided with a plurality of first reinforcing ribs 603.

[0032] A second insulation fixing groove 701 is provided at one end of the B-phase insulation plate 7, a second positioning hole 702 is provided at the other end of the B-phase insulation plate 7, and a plurality of second reinforcing ribs 703 are also provided on the side of the B-phase insulation plate 7.

[0033] A third insulation fixing groove 801 is provided at one end of the A-phase insulation plate 8, a third positioning hole 802 is provided at both ends of the A-phase insulation plate 8, and a plurality of third reinforcing ribs 803 are provided at the other end of the A-phase insulation plate 8.

[0034] In practical use, the pins of the first plug 2, the second plug 3, and the third plug 4 are inserted into the plug insulation holes 505 of the housing 5. The first plug 2 is installed into the A-phase insulation groove 501 of the housing 5, the second plug 3 is installed into the B-phase insulation groove 502 of the housing 5, and the third plug 4 is installed into the C-phase insulation groove 503 of the housing 5. The A-phase insulation plate 8 is installed into the A-phase insulation groove 501, the B-phase insulation plate 7 into the B-phase insulation groove 502, and the C-phase insulation plate 6 into the C-phase insulation groove 503 in sequence. The first positioning hole 602, the second positioning hole 702, and the third positioning hole 802 are installed into the positioning riveting cylindrical holes 507 of the housing 5. The first reinforcing rib 603, the second reinforcing rib 703, and the third reinforcing rib 803 are interference-fitted with the inside of the cover 1 to form a... Figure 7 Components. Then, install the rivet post 101 of cover 1. Figure 7 In the positioning riveting cylindrical hole 507 of the housing 5 of the component, the riveting post 101 of the cover 1 is riveted to the positioning riveting cylindrical hole 507 of the housing 5 using a hot riveting method to form a complete assembled interlocking terminal block device. Figure 8The installation and use of the prefabricated interlocking terminal block device are demonstrated. The pins of the first plug 2, second plug 3, and third plug 4 of the prefabricated interlocking terminal block device are inserted into the three-phase terminal block of the interlocking contactor 9. The three-phase wires (including auxiliary wires and interlocking mechanism connecting wires) are inserted through the first wiring hole 102 and the first auxiliary wiring hole 103 of the cover 1, passing through the second auxiliary wiring hole 504 and the second wiring hole 506 of the housing 5, and reaching the terminal block of the interlocking contactor 9. Then, screws are used for tightening. This effectively solves the problems of complex processing procedures, high processing costs, cumbersome installation, and poor protection and electrical safety performance of the main circuit connecting wires of current mechanical interlocking contactors. Therefore, this device has good practicality.

Claims

1. A prefabricated mechanical interlocking terminal block device, comprising a cover (1), wherein the bottom of the cover (1) is provided with a housing (5), characterized in that: The cover (1) is vertically and symmetrically provided with a first plug (2), a second plug (3) and a third plug (4). The housing (5) is provided with a C-phase insulation plate (6), a B-phase insulation plate (7) and an A-phase insulation plate (8) corresponding to the first plug (2), the second plug (3) and the third plug (4).

2. The prefabricated mechanical interlocking terminal block device according to claim 1, characterized in that: The cover (1) is provided with multiple riveting posts (101) on its side, and the first plug (2), the second plug (3) and the third plug (4) are all connected to the riveting posts (101). The cover (1) is also provided with multiple first wiring holes (102), first auxiliary wiring holes (103), tunnel holes (104) and cave entrances (105) in sequence.

3. The prefabricated mechanical interlocking terminal block device according to claim 1, characterized in that: The housing (5) is provided with C-phase insulation groove (503), B-phase insulation groove (502) and A-phase insulation groove (501) matching the C-phase insulation plate (6), B-phase insulation plate (7) and A-phase insulation plate (8). The housing (5) is also provided with plug insulation hole (505) matching the first plug (2), second plug (3) and third plug (4). The housing (5) is also provided with a plurality of second auxiliary wiring holes (504), second wiring holes (506) and positioning riveting cylindrical holes (507) in sequence.

4. The prefabricated mechanical interlocking terminal block device according to claim 3, characterized in that: The C-phase insulating plate (6) has a first insulating fixing groove (601) at one end and a first positioning hole (602) at the other end. The side of the C-phase insulating plate (6) is also provided with a plurality of first reinforcing ribs (603).

5. The prefabricated mechanical interlocking terminal block device according to claim 3, characterized in that: The B-phase insulation plate (7) has a second insulation fixing groove (701) at one end and a second positioning hole (702) at the other end. The side of the B-phase insulation plate (7) is also provided with a plurality of second reinforcing ribs (703).

6. The prefabricated mechanical interlocking terminal block device according to claim 3, characterized in that: The A-phase insulation plate (8) has a third insulation fixing groove (801) at one end, a third positioning hole (802) at both ends, and a plurality of third reinforcing ribs (803) at the other end.

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