Copper bar connection structure of power distribution cabinet

Abstract

The utility model provides a power distribution cabinet copper bar connection structure, which belongs to the field of copper bar connection and comprises a first copper bar and a second copper bar, a first movable copper bar is movably connected in the first copper bar, a second movable copper bar is movably connected in the second copper bar, and the first movable copper bar is rotatably connected with the second movable copper bar. The top of the first copper bar and the top of the second copper bar are respectively provided with a fixing frame, the inner wall of each fixing frame is provided with a plurality of groups of openings, each group of openings is internally provided with a connecting mechanism, the connecting mechanisms are used for connecting cables with the copper bars, and the connecting mechanisms are connected with the copper bars. And then the extrusion sleeve is used for extrusion connection, so that the problem that a metal wire of the cable is broken or an insulating layer is damaged can be avoided, the problem of poor contact is avoided, and the wiring effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of switchgear copper bar connection, specifically, relates to a switchgear copper bar connection structure. BACKGROUND

[0002] The switchgear is the terminal equipment of the distribution system, and is the collective term of the motor control center, which distributes the electric energy of an electric circuit of the upper stage power distribution equipment to the nearby load, and the equipment should provide protection, monitoring and control for the load.

[0003] The rigid structure of the copper bar causes insufficient installation flexibility, and the direct compression of the bolt can easily cause the fracture of the cable wire or the damage of the insulating layer, and long-term use can easily cause poor contact due to thermal expansion and contraction or vibration; moreover, the length of the copper bar is fixed, and cannot be reasonably adjusted according to the internal space of the switchgear. UTILITY MODEL CONTENT

[0004] In order to make up for the above shortcomings, the utility model provides a switchgear copper bar connection structure, which aims to improve the current copper bar when connecting with the cable, mostly drilling holes on the surface of the copper bar, and then fixing the cable in the hole by using the bolt, but the direct compression of the bolt can cause damage to the cable, and the connection effect is not good, and the problem of loosening is prone to occur when shaking.

[0005] The utility model is implemented as follows:

[0006] The utility model provides a switchgear copper bar connection structure, which comprises a first copper bar and a second copper bar, a first movable copper bar is movably connected in the first copper bar, a second movable copper bar is movably connected in the second copper bar, the first movable copper bar is rotatably connected with the second movable copper bar, a fixing frame is arranged at the top of the first copper bar and the second copper bar, a plurality of openings are formed in the inner wall of the fixing frame, a connecting mechanism is arranged in each of the openings, the connecting mechanism is used for connecting the cable with the copper bar, and the connecting mechanism is connected with the copper bar.

[0007] Preferably, the connecting mechanism comprises a terminal post arranged in the opening, one end of the terminal post is connected with the first copper bar, a supporting ring is sleeved and arranged on the outer wall of the terminal post, an extrusion sleeve matched with the terminal post is arranged in the opening, a bolt is arranged to penetrate through the top of the fixing frame, and one end of the bolt is connected with the top of the extrusion sleeve.

[0008] Preferably, a sliding rod is arranged on the inner wall of the opening, a sliding block is sleeved and arranged on the outer wall of the sliding rod, and the side wall of the sliding block is connected with the side wall of the extrusion sleeve.

[0009] Preferably, the first copper bar and the second copper bar are provided with two groups of guide grooves in the inner walls, and the first movable copper bar and the second movable copper bar are provided with guide strips matched with the guide grooves on the front and rear sidewalls.

[0010] Preferably, the first copper bar and the second copper bar are provided with mounting plates on the sidewalls, and two groups of openings are formed in the sidewalls of the mounting plates.

[0011] Preferably, the first movable copper bar is provided with a slot in the sidewall, a rotating shaft is rotatably connected in the slot, a connecting copper bar is sleeved and mounted on the outer wall of the rotating shaft, and the sidewall of the connecting copper bar is connected with the sidewall of the second movable copper bar.

[0012] Preferably, the extrusion sleeve is provided with a crimping surface matched with the outer diameter of the cable, and the crimping surface is provided with anti-skid lines.

[0013] The utility model discloses the beneficial effects are:

[0014] 1. The utility model discloses a connecting mechanism, can bend the cable one end into annularly and be connected on the terminal post, then utilizes extrusion sleeve to carry out extrusion connection, can avoid the problem of cable metal wire fracture or insulating layer damage, does not appear the problem of poor contact, improves the wiring effect.

[0015] 2. The utility model discloses a movable first movable copper bar and second movable copper bar, can adjust the copper bar length of whole, can adapt to multiple specifications of switch board.

[0016] 3. The utility model discloses a rotating shaft and connecting copper bar, which can rotate the connecting copper bar (12) to change the included angle between the first copper bar and the second copper bar, adapt the copper bar to the layout in the cabinet and improve the space adaptability. DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be to the drawings needed in the embodiment used briefly introduces, should understand, the following drawings only shows some embodiments of the utility model, therefore should not be regarded as the limitation to the range, for the ordinary skilled person in the art comes, under the premise of not paying the creative labor, can also obtain other related drawings according to these drawings.

[0018] Figure 1 It is the whole structure schematic diagram of the utility model;

[0019] Figure 2 It is the whole structure schematic diagram of the utility model Figure 1 A structure enlarged view in the utility model;

[0020] Figure 3 It is the first movable copper bar and the second movable copper bar structure schematic diagram of the utility model.

[0021] In the figure: 1, the first copper bar; 2, the mounting plate; 3, the connecting mechanism; 300, the terminal post; 301, the support ring; 302, the sliding rod; 303, the sliding block; 304, the bolt; 305, the extruded sleeve; 4, the fixed frame; 5, the first movable copper bar; 6, the second movable copper bar; 7, the opening; 8, the guide bar; 9, the slot; 10, the rotating shaft; 11, the second copper bar; 12, the connecting copper bar. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] Embodiments, with reference to Figures 1-3 A power distribution cabinet copper bar connecting structure, including first copper bar 1 and second copper bar 11, the first copper bar 1 and the second copper bar 11 side wall are equipped with mounting plate 2, two groups of mounting plate 2 side wall are equipped with two groups of openings, the mounting plate 2 can be installed on the inner wall of the power distribution cabinet by the opening and the fixed bolt, so as to fix the copper bar, the first movable copper bar 5 is movably connected in the first copper bar 1, the second movable copper bar 6 is movably connected in the second copper bar 11, the first copper bar 1 and the second copper bar 11 inner wall are equipped with two groups of guide grooves, the first movable copper bar 5 and the second movable copper bar 6 front and back side wall are equipped with guide bar 8 matched with the guide groove, the first movable copper bar 5 and the second movable copper bar 6 move more stably in the first copper bar 1 and the second copper bar 11 under the action of the guide bar 8 and the guide groove, the first movable copper bar 5 and the second movable copper bar 6 are rotatably connected, the first copper bar 1 and the second copper bar 11 top are equipped with fixed frame 4, the fixed frame 4 inner wall is equipped with multiple openings 7, multiple openings 7 are equipped with connecting mechanism 3, the connecting mechanism 3 is used for connecting the cable and the copper bar, the connecting mechanism 3 is connected with the copper bar.

[0024] The connecting mechanism 3 comprises a terminal post 300 provided in the opening 7, one end of the terminal post 300 is connected with the first copper bar 1, a support ring 301 is sleeved and installed on the outer wall of the terminal post 300, an extrusion sleeve 305 matched with the terminal post 300 is provided in the opening 7, a bolt 304 is provided through the top of the fixed frame 4, one end of the bolt 304 is connected with the top of the extrusion sleeve 305, a sliding rod 302 is provided on the inner wall of the opening 7, a sliding block 303 is sleeved and provided on the outer wall of the sliding rod 302, the side wall of the sliding block 303 is connected with the side wall of the extrusion sleeve 305, under the action of the sliding rod 302 and the sliding block 303, the bolt 304 drives the extrusion sleeve 305 to move up and down more stably, the extrusion sleeve 305 is provided with a crimping surface at the bottom, which matches the outer diameter of the cable, the crimping surface is provided with anti-skid lines for enhancing the fixing effect of the cable.

[0025] It should be noted that the surfaces of the terminal post 300 and the extrusion sleeve 305 are silver-plated to reduce the contact resistance and improve the conductivity, the support ring 301 is made of insulating ceramic material to double-protect the safety of the cable insulation layer, when connecting the cable, one end of the cable needs to be bent into a ring shape and sleeved on the terminal post 300, and then the extrusion sleeve 305 is matched with the terminal post 300 to extrude and connect the cable.

[0026] The first movable copper bar 5 is provided with a slot 9 on the side wall, a rotating shaft 10 is rotatably connected in the slot 9, a connecting copper bar 12 is sleeved and installed on the outer wall of the rotating shaft 10, and the side wall of the connecting copper bar 12 is connected with the side wall of the second movable copper bar 6.

[0027] It should be noted that the first movable copper bar 5 and the second movable copper bar 6 are rotatably connected through the rotating shaft 10 and the connecting copper bar 12, when the layout in the power distribution cabinet needs to be adjusted, the included angle between the copper bars can be changed by rotating the connecting copper bar 12 to improve the space adaptability.

[0028] Working principle: when the copper bars are installed in the power distribution cabinet, the first movable copper bar 5 and the second movable copper bar 6 are slidably extended in the first copper bar 1 and the second copper bar 11 through the cooperation of the guide groove and the guide strip 8, the user can manually adjust the extension length of the movable copper bar according to the space requirement inside the power distribution cabinet, so as to adjust the length of the whole copper bar, when the layout in the power distribution cabinet needs to be adjusted, the included angle between the copper bars can be changed by rotating the connecting copper bar 12 to improve the space adaptability, finally, the position is fixed through the opening in the mounting plate 2 to realize flexible adaptation, when connecting the cable, one end of the cable needs to be bent into a ring shape and sleeved on the terminal post 300, then the bolt 304 is rotated to drive the extrusion sleeve 305 to press down, the extrusion sleeve 305 uniformly applies force under the guidance of the sliding rod 302 and the sliding block 303, the cable is pressed between the extrusion sleeve 305 and the support ring 301, which can avoid the problems of broken metal wires or damaged insulation layer of the cable, and the problem of poor contact does not occur.

[0029] It should be noted that the specific model of the motor needs to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in the art, so it will not be described in detail.

[0030] The preferred embodiments of the present application have been described above, and are not intended to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A power distribution cabinet copper bar connecting structure, comprising a first copper bar (1) and a second copper bar (11), characterized in that, The first copper bar (1) is movably connected with a first movable copper bar (5), and the second copper bar (11) is movably connected with a second movable copper bar (6), the first movable copper bar (5) is rotatably connected with the second movable copper bar (6), the first copper bar (1) and the second copper bar (11) are provided with a fixed frame (4) at the top, a plurality of groups of openings (7) are formed in the inner wall of the fixed frame (4), and a connecting mechanism (3) is arranged in each group of openings (7), the connecting mechanism (3) is used for connecting the cable and the copper bar, and the connecting mechanism (3) is connected with the copper bar.

2. The copper bar connecting structure of a power distribution cabinet according to claim 1, characterized in that, The connecting mechanism (3) comprises a terminal post (300) arranged in the opening (7), one end of the terminal post (300) is connected with the first copper bar (1), a support ring (301) is sleeved and arranged on the outer wall of the terminal post (300), a compression sleeve (305) matched with the terminal post (300) is arranged in the opening (7), and a bolt (304) penetrates through the top of the fixed frame (4), and one end of the bolt (304) is connected with the top of the compression sleeve (305).

3. The copper bar connecting structure of a power distribution cabinet according to claim 2, characterized in that, The inner wall of the opening (7) is provided with a sliding rod (302), the outer wall of the sliding rod (302) is sleeved with a sliding block (303), and the side wall of the sliding block (303) is connected with the side wall of the compression sleeve (305).

4. The copper bar connecting structure of a power distribution cabinet according to claim 1, characterized in that, The inner wall of the first copper bar (1) and the second copper bar (11) is provided with two groups of guide grooves, the front and rear side walls of the first movable copper bar (5) and the second movable copper bar (6) are provided with guide strips (8) matched with the guide grooves.

5. The copper bar connecting structure of a power distribution cabinet according to claim 1, characterized in that, The side walls of the first copper bar (1) and the second copper bar (11) are provided with mounting plates (2), and two groups of openings are formed in the side walls of the two mounting plates (2).

6. The copper bar connecting structure of a power distribution cabinet according to claim 1, characterized in that, The side wall of the first movable copper bar (5) is provided with a slot (9), a rotating shaft (10) is rotatably connected in the slot (9), a connecting copper bar (12) is sleeved and arranged on the outer wall of the rotating shaft (10), and the side wall of the connecting copper bar (12) is connected with the side wall of the second movable copper bar (6).

7. The copper bar connecting structure of a power distribution cabinet according to claim 2, characterized in that, The compression sleeve (305) is provided with a compression surface at the bottom, which is matched with the outer diameter of the cable, and the compression surface is provided with anti-skid lines.

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