A wing-shaped aluminum alloy busbar and power distribution cabinet

Abstract

The present invention relates to the technical field of aluminum alloy busbars, and specifically to a wing-shaped aluminum alloy busbar and a distribution cabinet, comprising an aluminum alloy busbar frame, both ends of the aluminum alloy busbar frame are integrally formed with connecting end frames, one end of the aluminum alloy busbar frame is fixed with a punch-free connector for connecting and fixing two adjacent groups of aluminum alloy busbar frames, and the surface of the aluminum alloy busbar frame is provided with a plurality of heat dissipation wings, and the surface of the heat dissipation wings is provided with heat dissipation diffusers to increase the heat dissipation area of ​​the heat dissipation wings; the beneficial effects are: the wing-shaped aluminum alloy busbar proposed by the present invention adds heat dissipation wings, and the shape naturally forms an air duct, which greatly reduces the temperature rise and increases the current carrying capacity; the wing-shaped aluminum alloy busbar is not punched, and the punch-free connector is used to connect and clamp the connecting end frames at the ends of two adjacent aluminum alloy busbar frames to achieve the fixation of the two aluminum alloy busbar frames, the connection speed is fast, the busbar is not damaged, and the safety operation coefficient is increased.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum alloy busbars, and in particular to a wing-shaped aluminum alloy busbar and a distribution cabinet. Background Art

[0002] The distribution cabinet is divided into power distribution cabinet, lighting distribution cabinet and metering cabinet, which is the final equipment of the power distribution system. The distribution cabinet is a general term for the motor control center. The distribution cabinet is used in places where the load is relatively dispersed and there are fewer circuits; the motor control center is used in places where the load is concentrated and there are more circuits.

[0003] In the prior art, a distribution cabinet distributes the electrical energy of a circuit of the upper-level distribution equipment to the nearest load. The equipment at this level should provide protection, monitoring and control for the load. The busbar is an important component inside the distribution cabinet. The busbar refers to the copper or aluminum busbar that connects the main switch in the cabinet and the switches in each branch circuit in the power supply system. The surface is insulated and its main function is to serve as a conductor.

[0004] However, the traditional aluminum busbar is rectangular and is produced by rolling or extrusion process. Due to its large size and simple shape, manufacturers will add a lot of waste materials during production, which will increase the resistivity and the conductive temperature rise. In severe cases, it will affect the safe operation. In addition, when connecting two sections of traditional aluminum alloy busbars, it is necessary to drill holes on the surface of the aluminum alloy busbar and then use bolts to connect and fix the two aluminum alloy busbars. Summary of the invention

[0005] The purpose of the present invention is to provide a wing-shaped aluminum alloy busbar and a distribution cabinet to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wing-shaped aluminum alloy busbar, comprising an aluminum alloy busbar frame, both ends of the aluminum alloy busbar frame are integrally formed with connecting end frames, one end of the aluminum alloy busbar frame is fixed with a punch-free connector for connecting and fixing two adjacent groups of aluminum alloy busbar frames, and the surface of the aluminum alloy busbar frame is provided with a plurality of heat dissipation wings, and the surface of the heat dissipation wings is provided with heat dissipation diffusers to increase the heat dissipation area of ​​the heat dissipation wings.

[0007] Preferably, the aluminum alloy busbar frame is a "C"-shaped square frame, the connecting end frame is a "C"-shaped square plate, the inner annular surface of the connecting end frame is coplanar with the inner annular surface of the aluminum alloy busbar frame, the plate thickness of the connecting end frame is less than the plate thickness of the aluminum alloy busbar frame, the connecting end frame is within the enclosure range of the punch-free connector, and the outer side of the connecting end frame is provided with a rubber sleeve, which fixedly covers the outer annular surface of the connecting end frame.

[0008] Preferably, the punch-free connector includes a limiting kit, a clamping piece and a toggle pushing piece. The connecting end frames at the ends of the two groups of aluminum alloy busbar frames are within the enclosure range of the limiting kit. The push-pull toggle pushing piece squeezes the clamping piece to clamp and limit the connecting end frames. The connecting end frames at the ends of the two groups of aluminum alloy busbar frames are clamped at the same time to splice and fix the two groups of aluminum alloy busbar frames.

[0009] Preferably, the limiting kit includes a protective frame, a rubber protrusion 1, a limiting groove and a rubber protrusion 2, the protective frame is a "C"-shaped square frame structure, one end of the protective frame is fixed to one end of the aluminum alloy busbar frame, the plate thickness of the protective frame is less than the plate thickness of the aluminum alloy busbar frame, and the protective frame is sleeved on the outside of the connecting end frame, and multiple groups of rubber protrusions 1 are fixed to the inner ring surface of the protective frame, the limiting groove is a "C"-shaped groove, and the depth of the limiting groove is less than the plate width of the protective frame.

[0010] Preferably, the rubber protrusions 2 are in the shape of a "cross", the rubber protrusions 2 are fixed on the surface of the enclosure, two groups of rubber protrusions 2 are provided, the two groups of rubber protrusions 2 are respectively fixed on the top surface of the enclosure and the bottom surface of the enclosure, and each group of rubber protrusions 2 is provided with a plurality of them, two groups of clamping members are provided, and the plurality of rubber protrusions 2 are located between the two groups of clamping members.

[0011] Preferably, the clamping member includes a through-hole, a clamping block, an inclined surface, a clamping protrusion, a pressing sheet, an elastic rubber pad, a pushing frame and a mounting groove. Two groups of through-holes are provided, and the two groups of through-holes are respectively opened on the top plate and the bottom plate of the enclosure frame. The clamping block is movably inserted in the through-hole, and the inclined surface is opened on the surface of the clamping block, the inclined surface is away from the inner ring surface of the enclosure frame, and the inclined surface faces the second rubber protrusion. The clamping protrusion is fixed on the surface of the clamping block, and the clamping protrusion faces the inner ring surface of the enclosure frame. A plurality of clamping protrusions are provided, and the plurality of clamping protrusions are arranged and distributed along the long side of the clamping block.

[0012] Preferably, the pressing sheet is fixed on the surface of the clamping block, the pressing sheet and the inclined surface are symmetrically distributed about the clamping block, the elastic rubber pad is a square block, one end of the elastic rubber pad is fixed on the surface of the pressing sheet, and the other end of the elastic rubber pad is fixed on the surface of the mounting groove, the mounting groove is opened on the outer ring surface of the protective frame, the mounting groove and the through-opening are connected, and the depth of the mounting groove is less than the depth of the through-opening.

[0013] Preferably, the toggle pushing member includes a pushing frame, a picking groove and a pull rod. The pushing frame is a "C"-shaped square plate structure. The pushing frame is sleeved on the outside of the protective frame. The pushing frame is provided with two groups. The rubber protrusions are clamped between the pushing frame and the protective frame. The picking groove is opened on the surface of the pushing frame, and the pull rod is fixed on two parallel side walls of the picking groove.

[0014] Preferably, the heat dissipation diffuser includes a through groove, side grooves and through holes. The heat dissipation wing is an isosceles trapezoidal plate structure. The through groove is opened on the surface of the heat dissipation wing. Two groups of side grooves are provided. The two groups of side grooves are respectively opened on the top surface and the bottom surface of the heat dissipation wing, and each group of side grooves is provided with multiple side grooves. The multiple side grooves are arranged and distributed along the short sides of the inclined surface of the heat dissipation wing. Multiple groups of through holes are provided, and the multiple groups of through holes are arranged and distributed along the long sides of the side grooves.

[0015] A power distribution cabinet comprises the wing-shaped aluminum alloy busbar.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The wing-shaped aluminum alloy busbar proposed in the present invention has added heat dissipation wings, and its shape naturally forms an air duct, which greatly reduces the temperature rise and increases the current carrying capacity; the wing-shaped aluminum alloy busbar is not punched, and a punch-free connector is used to connect and clamp the connecting end frames at the ends of two adjacent aluminum alloy busbar frames, so as to fix the two aluminum alloy busbar frames, with a fast connection speed, no damage to the busbar, and an increased safety operation factor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the heat dissipation fin installation structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the installation structure of the connecting end frame of the present invention;

[0021] Figure 4 It is a schematic diagram of the heat dissipation fin structure of the present invention;

[0022] Figure 5 It is a schematic diagram of the structure of the enclosure frame of the present invention;

[0023] Figure 6 This is a schematic diagram of a half-section structure of the top plate of the enclosure frame of the present invention;

[0024] Figure 7 for Figure 6 A schematic diagram of the structure enlargement in the middle;

[0025] Figure 8 It is a schematic diagram of the structure of the enclosure frame of the present invention;

[0026] Fig. 9 It is a schematic diagram of the structure of the pushing frame of the present invention;

[0027] Fig.10 This is a schematic diagram of a half-section structure of the end top plate of the present invention;

[0028] Fig.11 for Fig.10 Enlarged schematic diagram of the structure at point B in the middle.

[0029] In the figure: aluminum alloy busbar frame 1, connecting end frame 2, rubber sleeve 3, enclosure frame 4, rubber protrusion 1 5, limiting groove 6, rubber protrusion 2 7, through-hole 8, clamping block 9, inclined surface 10, clamping protrusion 11, pressing sheet 12, elastic rubber pad 13, pushing frame 14, picking groove 15, pull rod 16, rubber strip 17, heat dissipation wing 18, through groove 19, side groove 20, through hole 21, installation groove 22. DETAILED DESCRIPTION

[0030] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Embodiment 1

[0032] See also Figures 1 to 3 as well as Fig.10 The present invention provides a technical solution: a wing-shaped aluminum alloy busbar, comprising an aluminum alloy busbar frame 1, both ends of the aluminum alloy busbar frame 1 are integrally formed with a connecting end frame 2, one end of the aluminum alloy busbar frame 1 is fixed with a punch-free connector, the aluminum alloy busbar frame 1 is a "C"-shaped square frame, the connecting end frame 2 is a "C"-shaped square plate, the inner annular surface of the connecting end frame 2 is coplanar with the inner annular surface of the aluminum alloy busbar frame 1, the plate thickness of the connecting end frame 2 is less than the plate thickness of the aluminum alloy busbar frame 1, the connecting end frame 2 is in the enclosure range of the punch-free connector, and the outer side of the connecting end frame 2 is provided with a rubber sleeve 3, the rubber sleeve 3 The outer annular surface of the fixedly covered connecting end frame 2 is used to connect and fix two adjacent groups of aluminum alloy busbar frames 1, and a plurality of heat dissipation wings 18 are arranged on the surface of the aluminum alloy busbar frame 1, and a heat dissipation diffuser is arranged on the surface of the heat dissipation wing 18 to increase the heat dissipation area of ​​the heat dissipation wing 18; the heat dissipation wing is added, and the shape naturally forms an air duct, which greatly reduces the temperature rise and increases the current carrying capacity; the wing-shaped aluminum alloy busbar is not punched, and the connecting end frames 2 at the ends of two adjacent aluminum alloy busbar frames 1 are connected and clamped by punch-free connectors to realize the fixation of the two aluminum alloy busbar frames 1, with a fast connection speed, no damage to the busbar, and an increased safety operation factor.

[0033] Embodiment 2

[0034] Refer to the attached Figures 5 to 9 as well as Fig.11On the basis of the first embodiment, in order to fix the connecting end frames 2 of the two sets of aluminum alloy busbar frames 1 when they are connected, the punch-free connector includes a limiting kit, a clamping member and a toggle pushing member. The connecting end frames 2 at the ends of the two sets of aluminum alloy busbar frames 1 are within the enclosure range of the limiting kit. The pushing and pulling toggle pushing member squeezes the clamping member to clamp and limit the connecting end frames 2. The connecting end frames 2 at the ends of the two sets of aluminum alloy busbar frames 1 are clamped at the same time for splicing and fixing the two sets of aluminum alloy busbar frames 1; the limiting kit includes a protective frame 4, a rubber protrusion 5, a limiting groove 6 and a rubber protrusion 7. The protective frame 4 is a "C"-shaped square frame structure. One end of the protective frame 4 is fixed to one end of the aluminum alloy busbar frame 1. The plate thickness of the enclosure 4 is less than that of the aluminum alloy busbar frame 1, and the enclosure 4 is sleeved on the outside of the connecting end frame 2. The inner ring surface of the enclosure 4 is fixed with multiple groups of rubber protrusions 5, and the limiting groove 6 is a "C"-shaped groove. The depth of the limiting groove 6 is less than the plate width of the enclosure 4; the rubber protrusion 27 is a "cross"-shaped piece, and the rubber protrusion 27 is fixed on the surface of the enclosure 4. There are two groups of rubber protrusions 27, and the two groups of rubber protrusions 27 are respectively fixed on the top surface of the enclosure 4 and the bottom surface of the enclosure 4, and each group of rubber protrusions 27 is provided with multiple, and two groups of clamps are provided, and multiple rubber protrusions 27 are located between the two groups of clamps; the clamp includes a through-mouth 8, a clamping block 9, an inclined surface 10, a clamping protrusion 11, a pressing sheet 12, an elastic rubber pad 13, a pushing frame 14 and a mounting groove 22, two groups of through-holes 8 are provided, and the two groups of through-holes 8 are respectively opened on the top plate of the enclosure 4 and the bottom plate of the enclosure 4, the clamping block 9 is movably inserted in the through-hole 8, and the inclined surface 10 is opened on the surface of the clamping block 9, the inclined surface 10 is away from the inner ring surface of the enclosure 4, and the inclined surface 10 faces the rubber protrusion 27, the clamping protrusion 11 is fixed on the surface of the clamping block 9, the clamping protrusion 11 faces the inner ring surface of the enclosure 4, and the clamping protrusion 11 is provided with a plurality of clamping protrusions 11, and the plurality of clamping protrusions 11 are arranged and distributed along the long side of the clamping block 9; the pressing sheet 12 is fixed on the surface of the clamping block 9, the pressing sheet 12 and the inclined surface 10 are symmetrically distributed about the clamping block 9, and the elastic rubber The pad 13 is a square block, one end of the elastic rubber pad 13 is fixed on the surface of the pressing sheet 12, and the other end of the elastic rubber pad 13 is fixed on the surface of the mounting groove 22. The mounting groove 22 is opened on the outer ring surface of the enclosure 4, and the mounting groove 22 and the through-opening 8 are connected. The depth of the mounting groove 22 is less than the depth of the through-opening 8; the toggle pushing member includes a pushing frame 14, a picking groove 15 and a pull rod 16. The pushing frame 14 is a "C"-shaped square plate structure. The pushing frame 14 is sleeved on the outside of the enclosure 4. The pushing frame 14 is provided with two groups. The rubber protrusion 27 is clamped between the pushing frame 14 and the enclosure 4. The picking groove 15 is opened on the surface of the pushing frame 14, and the pull rod 16 is fixed on two parallel side walls of the picking groove 15.

[0035] Embodiment 3

[0036] See attached Figure 4On the basis of the second embodiment, in order to improve the heat dissipation effect of the aluminum alloy busbar frame 1, the heat dissipation diffuser includes a through groove 19, a side groove 20 and a through hole 21. The heat dissipation wing 18 is an isosceles trapezoidal plate structure. The through groove 19 is opened on the surface of the heat dissipation wing 18. There are two groups of side grooves 20. The two groups of side grooves 20 are respectively opened on the top surface of the heat dissipation wing 18 and the bottom surface of the heat dissipation wing 18, and each group of side grooves 20 is provided with a plurality of side grooves 20, and the plurality of side grooves 20 are arranged and distributed along the short side of the inclined surface of the heat dissipation wing 18. There are multiple groups of through holes 21, and the plurality of groups of through holes 21 are arranged and distributed along the long side of the side grooves 20.

[0037] Embodiment 4

[0038] A power distribution cabinet comprises a wing-shaped aluminum alloy busbar.

[0039] In actual use, two groups of aluminum alloy busbar frames 1 are connected end to end, that is, the connecting end frame 2 at the end of one group of aluminum alloy busbar frames 1 is pushed into the enclosure frame 4 at the end of the other group of aluminum alloy busbar frames 1. At this time, the two groups of aluminum alloy busbar frames 1 are spliced ​​together, and the rubber protrusion 15 is clamped between the enclosure frame 4 and the connecting end frame 2. The fingers are inserted into the picking groove 15 to push the two groups of pushing frames 14 to slide along the limiting groove 6, and the distance between the two pushing frames 14 is expanded. In this process, the pushing frame 14 pushes the inclined surface 10 on the surface of the two groups of clamping blocks 9 at the same time, and the clamping block 9 is pushed into the through hole 8 by the pushing frame 14. At the same time, the clamping block 9 drives the pressing sheet 12 to squeeze the elastic rubber pad 13. At this time, the clamping block 9 drives the clamping protrusion 1 1 clamps the rubber sleeve 3, the surface of the rubber sleeve 3 forms a concave position, and the rubber protrusion 27 is clamped between the pushing frame 14 and the surrounding frame 4, and a plurality of rubber strips 17 are fixed on the inner ring surface of the pushing frame 14, and the rubber strips 17 are clamped between the pushing frame 14 and the surrounding frame 4 to prevent the pushing frame 14 from sliding freely. In this way, the two groups of connecting end frames 2 are respectively clamped in the same group of surrounding frames 4 by the two groups of clamping blocks 9, so that the two groups of aluminum alloy busbar frames 1 are installed without punching. After the through groove 19 passes through the heat dissipation wing 18, the heat dissipation wing 18 forms a ventilation duct, and the opening of the side groove 20 increases the heat dissipation area of ​​the heat dissipation wing 18, and the opening of the through hole 21 is convenient for the heat dissipation, thereby improving the heat dissipation effect of the heat dissipation wing 18.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wing-shaped aluminum alloy busbar, comprising an aluminum alloy busbar frame (1), characterized in that: Both ends of the aluminum alloy busbar frame (1) are integrally formed with connecting end frames (2); one end of the aluminum alloy busbar frame (1) is fixed with a punch-free connecting piece for connecting and fixing two adjacent groups of aluminum alloy busbar frames (1); and a plurality of heat dissipation wings (18) are provided on the surface of the aluminum alloy busbar frame (1); and a heat dissipation diffuser is provided on the surface of the heat dissipation wing (18) to increase the heat dissipation area of ​​the heat dissipation wing (18); The punch-free connection piece comprises a limit kit, a clamping piece and a toggle pushing piece. The connection end frames (2) at the ends of the two sets of aluminum alloy busbar frames (1) are within the enclosure range of the limit kit. The push-pull toggle pushing piece squeezes the clamping piece to clamp and limit the connection end frames (2). The connection end frames (2) at the ends of the two sets of aluminum alloy busbar frames (1) are clamped at the same time, and are used to splice and fix the two sets of aluminum alloy busbar frames (1). The limit kit comprises a protective frame (4), a first rubber protrusion (5), a limit groove (6) and a second rubber protrusion (7). The protective frame (4) is a "C"-shaped square frame structure. One end of the protective frame (4) is fixed to one end of the aluminum alloy busbar frame (1). The plate thickness of the protective frame (4) is less than 100 mm. The plate body of the alloy busbar frame (1) has a thickness of 100 mm, and the enclosure frame (4) is sleeved on the outer side of the connecting end frame (2). The inner ring surface of the enclosure frame (4) is fixed with multiple groups of rubber protrusions (5). The limiting groove (6) is a "C"-shaped groove. The depth of the limiting groove (6) is less than the plate body width of the enclosure frame (4). The rubber protrusions (7) are in the shape of a "cross" piece. The rubber protrusions (7) are fixed on the surface of the enclosure frame (4). Two groups of rubber protrusions (7) are provided. The two groups of rubber protrusions (7) are respectively fixed on the top surface of the enclosure frame (4) and the bottom surface of the enclosure frame (4). Each group of rubber protrusions (7) is provided with multiple groups. Two groups of clamping members are provided. The multiple rubber protrusions (7) are located between the two groups of clamping members. The clamping member comprises a through-hole (8), a clamping block (9), an inclined surface (10), a clamping protrusion (11), a pressing sheet (12), an elastic rubber pad (13), a pushing frame (14) and a mounting groove (22). The through-hole (8) is provided with two groups, and the two groups of through-holes (8) are respectively opened on the top plate of the enclosure frame (4) and the bottom plate of the enclosure frame (4). The clamping block (9) is movably inserted in the through-hole (8). The inclined surface (10) is opened on the surface of the clamping block (9), the inclined surface (10) is away from the inner ring surface of the enclosure frame (4), and the inclined surface (10) faces the rubber protrusion 2 (7). The clamping protrusion (11) is fixed on the surface of the clamping block (9), and the clamping protrusion (11) faces The inner annular surface of the enclosure (4) is provided with a plurality of clamping protrusions (11), and the plurality of clamping protrusions (11) are arranged and distributed along the long side of the clamping block (9); a pressing sheet (12) is fixed on the surface of the clamping block (9), the pressing sheet (12) and the inclined surface (10) are symmetrically distributed about the clamping block (9), the elastic rubber pad (13) is a square block, one end of the elastic rubber pad (13) is fixed on the surface of the pressing sheet (12), and the other end of the elastic rubber pad (13) is fixed on the surface of the mounting groove (22), the mounting groove (22) is opened on the outer annular surface of the enclosure (4), the mounting groove (22) and the through opening (8) are connected, and the depth of the mounting groove (22) is less than the depth of the through opening (8).

2. The wing-shaped aluminum alloy busbar according to claim 1, characterized in that: The aluminum alloy busbar frame (1) is in the form of a "C"-shaped square frame, the connecting end frame (2) is in the form of a "C"-shaped square plate, the inner annular surface of the connecting end frame (2) and the inner annular surface of the aluminum alloy busbar frame (1) are coplanar, the plate thickness of the connecting end frame (2) is less than the plate thickness of the aluminum alloy busbar frame (1), the connecting end frame (2) is within the enclosure of the punch-free connector, and the outer side of the connecting end frame (2) is provided with a rubber sleeve (3), the rubber sleeve (3) fixedly covers the outer annular surface of the connecting end frame (2).

3. The wing-shaped aluminum alloy busbar according to claim 1, characterized in that: The toggle pushing member comprises a pushing frame (14), a picking groove (15) and a pull rod (16); the pushing frame (14) is a "C"-shaped square plate structure; the pushing frame (14) is sleeved on the outer side of the surrounding frame (4); the pushing frame (14) is provided with two groups of rubber protrusions (7) clamped between the pushing frame (14) and the surrounding frame (4); the picking groove (15) is provided on the surface of the pushing frame (14); and the pull rod (16) is fixed on two parallel side walls of the picking groove (15).

4. The wing-shaped aluminum alloy busbar according to claim 1, characterized in that: The heat dissipation diffuser comprises a through groove (19), a side groove (20) and a through hole (21); the heat dissipation wing (18) is in an isosceles trapezoidal plate-shaped structure; the through groove (19) is arranged on the surface of the heat dissipation wing (18); two groups of side grooves (20) are provided; the two groups of side grooves (20) are respectively arranged on the top surface of the heat dissipation wing (18) and the bottom surface of the heat dissipation wing (18); each group of side grooves (20) is provided with a plurality of side grooves (20); the plurality of side grooves (20) are arranged along the short sides of the inclined surface of the heat dissipation wing (18); and the plurality of through holes (21) are provided with a plurality of groups; the plurality of through holes (21) are arranged along the long sides of the side grooves (20).

5. A power distribution cabinet, characterized in that: The invention comprises the wing-shaped aluminum alloy busbar as described in any one of claims 1 to 4 above.

Images