Busbar connector for power

Abstract

The present invention relates to a power busbar connection device comprising: a plurality of main busbars (10) arranged at uniform intervals; a plurality of branch busbars (20) arranged in an orthogonal direction spaced apart by a predetermined height from the lower portion of the main busbars (10); and a busbar connector (30) that is configured to be assembled downward from the top at an electrical connection position where the main busbars (10) and the branch busbars (20) intersect each other, and is configured to be open downward and horizontally penetrated so as to intersect each other at different heights, so that the inner surface is in close contact with the upper surface and both sides of the main busbars (10) and simultaneously in close contact with both sides of the branch busbars (20). The configuration is formed by the combination of a busbar fixing projection (40) such that the busbar insertion groove (31) into which the main busbar (10) of the busbar connector (30) is inserted is formed in the direction of the formation of the busbar penetration hole (32) on the lower height side plate of the branch busbar (20), so that the main busbar (10) and the branch busbar (20) are inserted into the busbar insertion groove (31) and the busbar penetration hole (32) is formed by mutually facing sides spaced apart from the height of the main busbar (10) from the upper part of the busbar insertion groove (31) into which the main busbar (10) of the busbar connector (30) is inserted, and mutually facing sides spaced apart from the height of the main busbar (10) and the busbar insertion groove (31) and penetrated to the height of the branch busbar (20), thereby allowing the main busbar (10) and the branch busbar (20) to be inserted into the busbar insertion groove (31) and the busbar penetration hole (32) respectively, while preventing the main busbar (10) and the branch busbar (20) from moving downward.

Description

Technology Field

[0001] The present invention relates to a power busbar connecting device, and more specifically, to a power busbar connecting device that enables a stable and robust connection between a main busbar and a branch busbar installed in a distribution panel without machining a fastening hole at the connection point, by means of a simple operation in which a main busbar and a branch busbar are formed spaced apart from each other by a predetermined height, and a busbar connecting member is assembled by applying downward pressure from above so that the main busbar and the branch busbar are simultaneously inserted at mutually orthogonal positions on the plane between the main busbar and the branch busbar. Background Technology

[0003] Generally, distribution boards and switchboards serve as the inlet for the circuit that distributes power supplied from the outside according to the capacity of the load, and are power connection devices configured with a main circuit breaker, multiple auxiliary circuit breakers, and branch circuit breakers inside to prevent accidents by disconnecting the circuit from the main busbar in the event of an overcurrent or short circuit.

[0004] Multiple busbars are installed in the distribution panel to electrically connect individual circuit breakers and distribute power supplied from the outside. The busbars consist of a main busbar, one end of which is connected to the output terminal of the main circuit breaker to induce power, and a distribution busbar, which is connected to the main busbar and supplies the distributed power to each auxiliary circuit breaker.

[0005] The distribution panel is configured to supply electricity to motors and each device on each floor of a building, in rooms, or in a factory by arranging each branch busbar distributed from the main power busbar (22), and is equipped with wiring that properly connects the wires to terminals consisting of a main circuit breaker and a branch circuit breaker to ensure safety by cutting off the current when an overload occurs in this supply.

[0006] In such distribution panels, a main line introduced from the outside enters the main circuit breaker, and branch busbars connected to each terminal are properly positioned and connected to the main busbar connected from the main circuit breaker.

[0007] Distribution panels have been configured by horizontally connecting each main busbar to connection terminals widely arranged to the left and right of the main circuit breaker, and connecting branch busbars that lead from the main busbars to each branch circuit breaker.

[0008] Accordingly, due to the circuit configuration in which the main busbar, branch busbar, and branch circuit breaker are arranged side by side, the case of the distribution panel becomes larger along with an increase in the width of the panel.

[0009] As such, the increasing size of distribution panels results in large connection points formed on the building walls, causing drawbacks such as building damage and an unsightly appearance, as well as contributing to increased manufacturing costs for the panels.

[0010] Furthermore, in configurations connected by wires, the connection work is difficult, and there is a risk of fire caused by sparks resulting from poor connection at the contact points.

[0011] In Patent Publication No. 2014-0089653, "Heat-dissipating busbar connection unit for distribution board," a structure for connecting a main busbar and a branch busbar using a bolt assembly structure was disclosed. However, when connecting the main busbar and the branch busbar by fastening with bolts and nuts, there is the inconvenience of having to drill bolt holes in the main busbar and the branch busbar respectively, and there is a problem that the connection work is difficult and time-consuming because the bolt holes of the main busbar and the branch busbar must match.

[0012] In addition, since the main busbar and branch busbar are connected in close contact, not only is a significant amount of heat generated at the connection point, but there are also problems such as electrical safety accidents occurring due to the connection becoming loose. Prior art literature

[0014] (Reference 1) Patent Publication No. 2014-0089653 (July 16, 2014) The problem to be solved

[0015] Accordingly, the present invention aims to solve the above-mentioned problems by providing a power busbar connection device that enables stable electrical connection along with heat dissipation, wherein a plurality of main busbars and branch busbars arranged at uniform intervals are spaced apart at a predetermined height and formed to intersect each other, and are assembled downward simply by one-touch pressing vertically on the same vertical line at the mutual connection location between the main busbars and branch busbars, while the exterior is covered by an insulator. means of solving the problem

[0017] A power busbar connection device according to the present invention for achieving the above-mentioned purpose comprises: a plurality of main busbars arranged at uniform intervals; a plurality of branch busbars arranged in an orthogonal direction spaced apart by a predetermined height from the lower portion of the main busbars; and a busbar connector configured to be fitted downward from the top at an electrical connection position where the main busbars and the branch busbars intersect each other, and to be horizontally penetrated so as to intersect at different heights while being open downward, so that the inner surface of the busbar connector is in close contact with the upper surface and both sides of the main busbars, and simultaneously in close contact with both sides of the branch busbars. The busbar fixing projection is formed such that the busbar insertion hole is formed on the plate surface at the height of the lower end of the branch busbar, in the direction of forming the busbar penetration hole, so that the busbar and branch busbar are inserted into the busbar insertion groove of the busbar connector, respectively, and the busbar insertion groove is formed such that the busbar and branch busbar are inserted into the busbar insertion groove, the busbar insertion hole is formed on the plate surface at the height of the branch busbar, the busbar insertion hole is formed by mutually facing sides spaced apart from the height of the busbar from the upper end of the busbar insertion groove of the busbar connector at a predetermined height and mutually facing sides at a direction intersecting the busbar insertion groove at the height of the branch busbar, thereby preventing the busbar and branch busbar from being dislodged downward.

[0018] The above busbar connector is protected by a ceramic cover, such as porcelain, so that electrical interference with adjacent busbars can be blocked on the outside.

[0019] The above-mentioned busbar fixing projection is formed to gradually protrude inward from the lower end upward from the inner surface facing each other in the busbar insertion groove and the busbar penetration hole, respectively, and the end of the busbar connector on the inner surface side is inserted into a guide groove formed at a depth deeper than the protruding thickness of the busbar fixing projection, so as to be able to be inserted and withdrawn while preventing detachment from the guide groove by spring elasticity. Effects of the invention

[0021] As described above, the power busbar connection device according to the present invention allows the main busbar and the branch busbar to be inserted simultaneously into the busbar insertion groove and the busbar penetration hole by simply pressing the busbar connector from above at mutually orthogonal positions on a plane between the main busbar and the branch busbar arranged at a predetermined height difference, thereby enabling very easy and fast electrical connection between the main busbar and the branch busbar, as well as stably maintaining a robust connection state so as to prevent separation from the main busbar and the branch busbar without using separate fixing means or tools. Brief explanation of the drawing

[0023] FIG. 1 is an exploded perspective view of a power busbar connection device according to the present invention. FIG. 2 is a vertical cross-sectional view illustrating a busbar connector of a power busbar connecting device according to the present invention. FIG. 3 is a vertical cross-sectional view illustrating a configuration in which the exterior of a busbar connector in a power busbar connecting device according to the present invention is protected by a ceramic cover. FIG. 4 is a partially enlarged perspective view illustrating busbar fixing protrusions formed in the busbar insertion groove and the busbar penetration hole of the busbar connector in a power busbar connecting device according to the present invention. FIG. 5 is an enlarged cross-sectional view of a key part illustrating another example of a busbar fixing projection in a power busbar connecting device according to the present invention. FIG. 6 is an example diagram illustrating a configuration for assembling busbar connectors to a main busbar and a branch busbar in a power busbar connecting device according to the present invention. FIG. 7 is a side cross-sectional view illustrating the assembled state of a power busbar connection device according to the present invention. Specific details for implementing the invention

[0024] Below, embodiments of the present invention are described in detail with reference to the attached drawings so that those skilled in the art can easily implement the invention.

[0025] The scope of the present invention shall not be interpreted as being limited by the embodiments described in the text.

[0026] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the description of the embodiments, the same reference numerals are assigned to identical components, and in some cases, the description of the same reference numerals is omitted.

[0027] FIG. 1 is an exploded perspective view of a power busbar connection device according to the present invention. As illustrated, the present invention is composed of a main busbar (10), a branch busbar (20), a busbar connector (30), and a busbar fixing projection (40).

[0028] The busbar (10) of the present invention is formed in the shape of a flat bar with a predetermined width and length, and one end is fixed to a main circuit breaker, and the other end is fixed to a jumper block.

[0029] And the branch busbar (20) may be formed with the same width and length as the main busbar (10) or with a different width and length, but is not limited thereto, and is formed in the shape of a flat bar like the main busbar (10) and at least one or both ends are connected to an auxiliary circuit breaker.

[0030] The configuration in which the main busbar (10) and branch busbar (20) are each formed in multiple numbers so as to be spaced apart by a predetermined width on the same horizontal line and formed in a mutually intersecting shape between the main busbar (10) and the branch busbar is similar to the prior art, but the main busbar (10) and branch busbar (20), which are in the shape of flat bars in the present invention, are formed with a mutually spaced height apart.

[0031] The busbar connector (30) of the present invention is configured to electrically connect a main busbar (10) and a branch busbar (20) that are spaced apart by a predetermined height from each other.

[0032] As shown in FIG. 2, the busbar connector (30) forms a busbar insertion groove (31) at a predetermined height so that a predetermined length of the main busbar (10) is inserted downwardly, and at the bottom of the busbar insertion groove (31), the outer side of the side protrudes outwardly with a predetermined width, and a busbar penetration hole (32) is formed so as to penetrate in a direction perpendicular to the formation direction of the main busbar (10).

[0033] The busbar connector (30) is formed to be higher than the formation height of the main busbar (10) and the branch busbar (20), and the thickness of the side wall from the upper part to the lower part from a predetermined height is formed to be thicker than the upper part.

[0034] However, it is more preferable that the width of the busbar insertion groove (31) and the busbar penetration hole (32) in the busbar connector (30) be the same as the width of the main busbar (10) and the branch busbar (20), or be formed with a width such that they can be inserted by close contact between surfaces.

[0035] In particular, the busbar insertion groove (31) and the busbar penetration hole (32) of the busbar connector (30) are formed such that a busbar fixing projection (40) protrudes inwardly from the inner surface, and the busbar fixing projection (40) is formed in a shape that gradually protrudes inwardly from the lower part of the inner surface upward.

[0036] Meanwhile, the busbar connector (30) may be formed with the same conductive material as the main busbar (10) or the branch busbar (20), but it is more preferable that the inner side in contact with the main busbar (10) and the branch busbar (20) be formed with a conductive material, while the outer side be protected by a non-conductive ceramic cover (33) such as ceramic as shown in FIG. 3.

[0037] In the busbar connector (30), a busbar fixing projection (40) is formed inside the busbar insertion groove (31) and the busbar penetration hole (32), respectively.

[0038] As shown in FIG. 4, the busbar fixing projection (40) is formed so that a predetermined width protrudes inward from the inner surface of the mutually facing sides of the busbar insertion groove (31) and the busbar penetration hole (32), and protrudes inward with an upward slope of a predetermined height from the inner surface, and the upper end is horizontally bent from the protruding end to the inner surface.

[0039] At this time, the busbar fixing projection (40) may be formed over the entire length of the busbar insertion groove (31) and the busbar penetration hole (32), but may also be formed only on a part of the length.

[0040] Meanwhile, the busbar fixing projection (40) can also be formed in a configuration that allows for retraction and insertion, such that a predetermined depth is inserted into the inner surface of the busbar connector (30) as shown in FIG. 5.

[0041] That is, in the busbar insertion groove (31) and the busbar penetration hole (32) of the busbar connector (30), a guide groove (41) is formed so that the inner surface of each has a depth deeper than the protruding thickness of the busbar fixing projection (40), and the end portion of the busbar fixing projection (40) is inserted into the guide groove (41) so that it can be pulled in and out while being prevented from detaching from the guide groove (41) by the elasticity of the spring (42).

[0042] In particular, it is most preferable that the busbar fixing projection (40) be formed at a height not smaller than the thickness of the main busbar (10) and the branch busbar (20) from the upper surfaces of the busbar insertion groove (31) and the busbar penetration hole (32).

[0043] The operation and effects of the power busbar connection device according to the present invention, configured as described above, are explained in more detail as follows.

[0044] The present invention is characterized by enabling mutual electrical connection between the main busbar (10) and the branch busbar (20) by simply pressing the busbar connector (30) with a predetermined pressure from the upper part of the main busbar (10) and the branch busbar (20), as shown in FIG. 6, so as to form them spaced apart at a predetermined height.

[0045] That is, the present invention is configured such that a plurality of main busbars (10) and branch busbars (20) are arranged at different heights and are interconnected, and a busbar connector (30) is pressed downward from above at a plane orthogonal to each other between the main busbar (10) and the branch busbar (20), so as in FIG. 7, the main busbar (10) is inserted into the upper part of the busbar insertion groove (31) of the busbar connector (30), and at the same time, the branch busbar (20) is pressed and connected so that it is inserted into the busbar penetration hole (32) of the busbar connector (30), and the busbar connector (30) is caught on both lower ends of the main busbar (10) and the branch busbar (20) by the busbar fixing projection (40) so that upward detachment is prevented.

[0046] By positioning the busbar connector (30) at a plane orthogonal position between the busbar (10) and the branch busbar (20) to be interconnected among the multiple busbars (10) and branch busbars (20), so that the busbar (10) and the branch busbar (20) are simultaneously inserted into the busbar insertion groove (31) and the busbar penetration hole (32), the busbar connector (30) can firmly connect the busbar (10) and the branch busbar (20) without using any fixing means or tools, so that they do not move in any direction.

[0047] In addition, the connection between the main busbar (10) and the branch busbar (20) allows power to be stably transmitted from the main busbar (10) to the branch busbar (20), while simultaneously maintaining a stable connection state even against any external shock.

[0048] As such, it is obvious to those skilled in the art that the present invention is not limited to the described embodiments and can be modified and varied in various ways without departing from the spirit and scope of the invention. Accordingly, such modifications or variations should be deemed to fall within the scope of the claims of the present invention. Explanation of the symbols

[0050] 10 : Main line busbar 20 : Charity Bus Bar 30: Busbar connector 31: Busbar insertion groove 32: Busbar through hole 40 : Busbar fixing projection 41 : Guide Home 42 : Spring

Claims

Claim 1 A plurality of main busbars (10) arranged at uniform intervals; a plurality of branch busbars (20) arranged in an orthogonal direction spaced apart by a predetermined height from the lower part of the main busbars (10); and a busbar connector (30) that is assembled downward from the top at an electrical connection position where the main busbars (10) and the branch busbars (20) intersect each other, and is horizontally penetrated to intersect each other at different heights while being open downward so that the inner surface is in close contact with the upper surface and both sides of the main busbars (10) and simultaneously in close contact with both sides of the branch busbars (20). A busbar fixing projection (40) is formed in the direction of forming the busbar penetration hole (32) on the lower height side of the branch busbar (20), so that the busbar (10) and the branch busbar (20) are inserted into the busbar insertion groove (31) of the busbar connector (30), and the busbar penetration hole (32) is formed by penetrating the busbar penetration hole (32) at the height of the branch busbar (20) and the mutually facing sides spaced apart from the height of the busbar (10) from the upper part of the busbar insertion groove (31) of the busbar connector (30), and the busbar penetration hole (32) is formed by penetrating the mutually facing sides spaced apart from the height of the busbar (10) from the space where the busbar (10) of the busbar insertion groove (31) of the busbar connector (30).A power busbar connecting device comprising a combination thereof, wherein the busbar connector (30) is protected by a ceramic cover (33), such as porcelain, so as to block electrical interference with adjacent busbars on the outside, and the busbar fixing projection (40) is formed to gradually protrude inward from the bottom to the top from the inner surface facing each other in the busbar insertion groove (31) and the busbar penetration hole (32), respectively, and the end of the busbar connector (30) on the inner surface side is inserted into a guide groove (41) formed at a depth deeper than the protrusion thickness of the busbar fixing projection (40), so as to be removable and retractable while preventing detachment from the guide groove (41) by the elasticity of a spring (42). Claim 2 delete Claim 3 delete

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