Closed large-current outgoing line static contact tool

Abstract

The utility model relates to a closed large-current outgoing line static contact tool, and belongs to the technical field of electrical equipment. The tool is composed of a switching copper bar, a front cover plate and a rear cover plate, the front cover plate and the rear cover plate are matched with the switching copper bar, the appearance of the front cover plate is matched with that of the rear cover plate, the front cover plate and the rear cover plate have the thickness, and a first groove and a second groove which are used for containing and fastening the switching copper bar are formed in the front cover plate and the rear cover plate respectively. The utility model has the advantages that the volume is reduced, the usage amount of copper bars can be saved, and the cost is reduced; due to the closed design, most of the copper bars are wrapped in the nylon material, and the electric shock risk is reduced; the outgoing terminals are staggered up and down, so that the wiring space of the outgoing cable is increased; the application range is wide, and the safety is improved.

Description

Technical Field

[0001] The utility model relates to a closed type large current outlet static contact tooling, belonging to the technical field of electrical equipment. Background Art

[0002] Drawer-type low-voltage switchgear is widely used in various industries as a centralized power distribution center due to its high reliability, safe and simple operation, convenient maintenance, and compact space. Due to the large specifications of the outgoing cables of the high-current (630A) drawer unit and the limitations of installation space and other factors, the phase spacing of a single conventional outgoing static contact cannot meet the use requirements. At present, a double-contact transfer structure is generally used. This structure uses a double contact arrangement up and down, uses a vertical copper busbar to connect the upper and lower contacts, and uses a horizontal copper busbar for transfer, which increases the contact area between the contact and the cable nose and increases the phase spacing. However, the copper busbar of the outgoing part is large and exposed, which is costly and has a high risk of electric shock. Utility Model Content

[0003] The purpose of the utility model is to propose a closed large-current outgoing static contact tooling for the problems existing in the prior art. The closed design not only meets the space for the outgoing cable connection, but also greatly reduces the risk of electric shock, reduces the use of copper busbars, and reduces production costs.

[0004] In order to achieve the above objectives, the utility model provides a closed high-current outlet static contact tooling, which consists of a transfer copper bus and front and rear cover plates adapted to the transfer copper bus. The shape of the front cover plate matches the rear cover plate. The front and rear cover plates both have thickness and are respectively provided with a first groove and a second groove for accommodating and fastening the transfer copper bus.

[0005] The front cover plate is embedded in the rear cover plate, and the front cover plate body is provided with a through hole.

[0006] A baffle is provided at the groove.

[0007] The front end of the through hole is provided with a screw blind hole, and the rear end is provided with a positioning blind hole.

[0008] The transfer copper bar is composed of a main body and an outlet terminal located on the side of the main body to form an "L" shape.

[0009] The cross-sectional area of ​​the main body and the outlet terminal is the same, the width of the outlet terminal is greater than the width of the main body, and the thickness is less than the thickness of the main body. The outlet terminal is provided with a cable fixing hole. The outlet terminals of the transfer copper bus are arranged in a staggered manner.

[0010] The front of the rear cover plate is provided with a through hole for the outlet terminal, and the interior is provided with a screw fixing boss that cooperates with the positioning blind hole and a reinforcing rib near the through hole for the outlet terminal. The rear cover plate is provided with a flange around it, and the flange is provided with a fixing hole that cooperates with the drawer unit of the low-voltage cabinet.

[0011] The reinforcing ribs are distributed in a "well" shape. The material of the front and rear cover plates is nylon.

[0012] The advantages of the utility model are that the volume is reduced, the use of copper bars can be saved, and the cost is reduced; the closed design wraps most of the copper bars inside the nylon material, reducing the risk of electric shock; the outlet terminals are staggered up and down, increasing the wiring space for the outlet cables; it has a wide range of applications and improves safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings.

[0014] Figure 1 It is a structural schematic diagram of the prior art.

[0015] Figure 2 It is a schematic diagram of the structural decomposition of the utility model.

[0016] Figure 3 for Figure 2 Schematic diagram of the structure of the center front cover.

[0017] Figure 4 for Figure 2 Schematic diagram of the structure of the intermediate copper busbar.

[0018] Figure 5 for Figure 2 Schematic diagram of the structure of the center rear cover. DETAILED DESCRIPTION Example

[0019] Existing technologies such as Figure 1 As shown, double contacts are arranged up and down, vertical copper bars are used to connect the upper and lower contacts, and horizontal copper bars are used for switching. The structure of this embodiment is as follows Figure 2-5As shown, a closed high-current outlet static contact tooling is composed of a transfer copper busbar 2 and a front cover plate 1 and a rear cover plate 3 adapted to the transfer copper busbar. The shape of the front cover plate matches the rear cover plate. The front and rear cover plates both have thickness and are respectively provided with a first groove 1-4 and a second groove 3-1 for accommodating and fastening the transfer copper busbar. The front cover plate 1 is made of nylon, and its shape matches that of the rear cover plate 3, and can be embedded in the rear cover plate 3. It has through holes 1-1 at the front and back, which are used to pass screws to fix the front cover plate 1 and the rear cover plate 3; a screw blind hole 1-2 is provided at the front at the through hole 1-1, which is used to embed the screw head into the front cover plate 1; a positioning blind hole 1-3 is provided at the rear, which cooperates with the screw fixing boss 3-3 in the rear cover plate 3, so that the screw fixing boss is embedded in the positioning blind hole 1-3, plays a positioning role, and increases the creepage distance between the transfer copper busbars 2; a first groove 1-4 is provided at the rear, and the groove width matches the thickness of the transfer copper busbar 2, and cooperates with the second groove 3-1 in the rear cover plate 3, and the transfer copper busbar 2 is pressed by the bottom surface of the groove, which plays a role in fixing the transfer copper busbar 2; a baffle 1-5 is provided at the transfer copper busbar groove 1-4 on the front, which plays a role in preventing the front from accidentally touching the transfer busbar 2 during maintenance.

[0020] The transfer copper bus 2 is made of copper milling and is "L" shaped as a whole. The size of its main body 2-1 matches the first groove 1-4 of the front cover plate 1 and the second groove 3-1 of the rear cover plate 3, and plays the role of connecting the conductors of the incoming and outgoing lines; the side of the main body 2-1 is provided with an outlet terminal 2-2, which has the same cross-sectional area as the main body 2-1, but is wider than the main body 2-1 and thinner than the main body 2-1, which can increase the contact area of ​​the outlet cable nose to meet the use requirements; the outlet terminal 2-2 is provided with a cable fixing hole 2-3 for fixing the outlet cable nose.

[0021] The rear cover plate 3 is made of nylon, and a second groove 3-1 is provided on the front side. The groove width matches the thickness of the transfer copper busbar 2, and cooperates with the first groove 1-4 in the front cover plate 1. The transfer copper busbar 2 is pressed by the bottom surface of the groove to fix the transfer copper busbar 2; an outlet terminal through hole 3-2 is provided on the front side, and its size matches the outlet terminal 2-2 of the transfer copper busbar 2, so that the transfer copper busbar 2 can be flipped and installed in sequence, and the outlet terminals 2-2 are staggered up and down to increase the wiring space of the outlet cable; a screw fixing boss 3-3 is provided on the front side, which matches the positioning blind hole 1-3 of the front cover plate 1, plays a positioning and fixing role, and increases the creepage distance between the transfer copper busbars 2; reinforcing ribs 3-4 are provided on the front side, which are distributed in a "well" shape to play a reinforcing role; flanges 3-5 are provided around, and the flanges 3-5 are provided with fixing holes 3-6, which cooperate with the sheet metal parts of the low-voltage cabinet drawer unit to play a fixing and supporting role for the rear cover plate 3.

[0022] In addition to the above embodiments, the present invention may also have other implementations. Any technical solution formed by equivalent replacement or equivalent transformation falls within the protection scope required by the present invention.

Claims

1. A closed type high current outlet static contact tooling, characterized in that: The tooling consists of a transfer copper busbar and front and rear cover plates adapted to the transfer copper busbar. The shape of the front cover plate matches the rear cover plate. The front and rear cover plates both have thickness and are respectively provided with a first groove and a second groove inside for accommodating and fastening the transfer copper busbar.

2. The enclosed high current outlet static contact tooling according to claim 1 is characterized in that: The front cover plate is embedded in the rear cover plate, a through hole is provided on the plate body of the front cover plate, and a baffle is provided at the first groove.

3. The enclosed high current outlet static contact tooling according to claim 2 is characterized in that: The front end of the through hole is provided with a screw blind hole, and the rear end is provided with a positioning blind hole.

4. The enclosed high current outlet static contact tooling according to claim 1 is characterized in that: The transfer copper busbar is formed into an "L" shape by a main body and an outlet terminal located on the side of the main body. The main body and the outlet terminal have the same cross-sectional area, and the outlet terminal has a width greater than that of the main body and a thickness less than that of the main body.

5. The enclosed high current outlet static contact tooling according to claim 4 is characterized in that: The outlet terminal is provided with a cable fixing hole.

6. The enclosed high current outlet static contact tooling according to claim 4 is characterized in that: The outlet terminals of the transfer copper bus are arranged in a staggered manner.

7. The enclosed high current outlet static contact tooling according to claim 1 is characterized in that: The front of the rear cover plate is provided with a through hole for the outlet terminal, and the interior is provided with a screw fixing boss that cooperates with the positioning blind hole and a reinforcing rib near the through hole for the outlet terminal. The rear cover plate is provided with a flange around it, and the flange is provided with a fixing hole that cooperates with the drawer unit of the low-voltage cabinet.

8. The enclosed high current outlet static contact tooling according to claim 7 is characterized in that: The reinforcing ribs are distributed in a "well" shape.

9. The enclosed high current outlet static contact tooling according to claim 1, characterized in that: The material of the front and rear cover plates is nylon.

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