KR102594463B1 - Bus bar and the manufacturing method therof - Google Patents

Abstract

The present invention relates to a busbar and a method of manufacturing the same, and more specifically, to a busbar forming an overall framework, which is formed in a plate shape with a certain area, and has at least one cut portion and at least one hole protruding from one side in one direction. The main body portion is formed; and a bent portion extending from the main body and bent to have a predetermined angle and shape, and extending from one end of the cut portion, and may further include a terminal groove formed on the bent portion.

Description

Busbar and its manufacturing method {BUS BAR AND THE MANUFACTURING METHOD THEROF}

The present invention relates to a busbar and a manufacturing method thereof, and more specifically, to a busbar used to design the electrical connection and support structure between each component element and a manufacturing method thereof.

Busbar, a medium that transmits electrical energy, forms transmission circuits such as large transmission and distribution lines with large current capacity, conductors for electrical devices, and communication cables in power plants, large buildings, large factories, large department stores, subways, and new airports. In general, cables have been mainly used, but recently, busbars have been widely used as a replacement for cables due to their various advantages.

When comparing busbars and cables structurally, the similarity is that they have conductors and insulators, but the biggest advantage of busbars is that they can transmit more electrical energy with the same volume of conductors. Therefore, as the advantages of busbars in large-capacity distribution systems are recognized, their use is rapidly increasing. Compared to the past, demand for large buildings, large factories, power plants, subways, etc. that require large amounts of electrical energy is rapidly increasing. Accordingly, busbars are safe and have low energy loss, so they are recognized as a very suitable component for modern large-capacity transmission systems.

Busbars are used to design electrical connections and support structures between each component in cases where space is limited, such as automobile parts. Recently, as the demand for electric vehicles has rapidly increased, the demand for these busbars has also been increasing. am.

Meanwhile, busbars are applied to distribution equipment or distribution boards used in various construction sites or factories, and there are various sizes and shapes of busbars ranging from low-capacity busbars to high-capacity busbars.

In the process of manufacturing the busbar, many processes such as cutting, bending, and perforation are performed, but there is a problem in that the values deviate from the initial design due to the force applied at this time.

Therefore, there is a need to develop busbars and manufacturing methods close to the initially designed values.

Republic of Korea Patent Publication No. 10-2043028 (Registration date: 2019.11.05.)

Therefore, the present invention was proposed to solve the above-described problems, and by efficiently combining processes such as cutting, bending, and perforation to achieve mold forming, the busbar and The purpose is to provide a manufacturing method.

In addition, the present invention provides a busbar and a manufacturing method thereof that improve economic efficiency by stably manufacturing improved busbars using existing equipment without the need to introduce new equipment.

The object of the present invention is not limited to what was mentioned above, and other objects not mentioned will be clearly understood by those skilled in the art from the description below.

A busbar according to the present invention for achieving the above object is formed in a plate shape with a certain area, and includes a main body portion in which at least one cut protrudes in one direction from one surface and at least one hole is formed; and a bent portion extending from the main body and bent to have a predetermined angle and shape, and extending from one end of the cut portion, and may further include a terminal groove formed on the bent portion.

Meanwhile, the busbar manufacturing method according to the present invention includes a first piercing step of forming at least one incision line at a predetermined position when a metal member having a certain length and width is seated; An embossing step of forming an incision by performing emboss processing on some of the formed incision lines; A notch step of notching and removing a portion of the outer portion of the busbar according to a predetermined standard of the busbar; A banding step of performing a bending process on one of the four sides formed by the notch process at a predetermined angle and shape; A second piercing step of forming at least one hole for fastening or heat dissipation; And it may include a parting step of cutting the metal member according to a predetermined busbar standard and shipping the busbar.

According to the present invention, mold forming is performed by efficiently combining processes such as cutting, bending, and perforation, so that the busbar can be manufactured close to the initially designed value.

In addition, according to the present invention, economic efficiency can be improved by stably manufacturing improved busbars using existing equipment without the need to introduce new equipment.

The effects of the present invention are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.

Figure 1 is a perspective view of a busbar according to an embodiment of the present invention.
Figure 2a is a front view of a busbar according to an embodiment of the present invention.
Figure 2b is a rear view of a busbar according to an embodiment of the present invention.
Figure 2c is a side view of a busbar according to an embodiment of the present invention.
Figure 3 is a flowchart showing a manufacturing method for manufacturing a busbar according to an embodiment of the present invention.
Figure 4 is a diagram showing the state of a metal member in each step of the manufacturing method according to an embodiment of the present invention.
Figure 5 is a flowchart showing an example of a manufacturing method for manufacturing a busbar according to an embodiment of the present invention.
FIGS. 6A to 6I are diagrams showing states of metal members corresponding to each stage in FIG. 4 .

In order to fully understand the configuration and effects of the present invention, preferred embodiments of the present invention will be described with reference to the attached drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various forms and various changes can be made. However, the description of the present embodiments is provided to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the present invention of the scope of the invention. In the attached drawings, the components are enlarged in size for convenience of explanation, and the proportions of each component may be exaggerated or reduced.

When a component is described as being “on” or “adjacent to” another component, it should be understood that it may be in direct contact with or connected to the other component, but that another component may exist in between. something to do. On the other hand, when a component is described as being “right on” or “in direct contact” with another component, it can be understood that there is no other component in the middle. Other expressions that describe relationships between components, such as “between” and “directly between” can be interpreted similarly.

Terms such as first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The above terms may be used only for the purpose of distinguishing one component from another. For example, a first component may be named a second component, and similarly, the second component may also be named a first component without departing from the scope of the present invention.

Singular expressions include plural expressions unless the context clearly dictates otherwise. Terms such as “comprises” or “has” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, including one or more other features or numbers, It can be interpreted that steps, operations, components, parts, or combinations of these can be added.

Unless otherwise defined, terms used in the embodiments of the present invention may be interpreted as meanings commonly known to those skilled in the art.

Hereinafter, the configuration and operation of the preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 is a perspective view of a busbar according to an embodiment of the present invention.

Referring to FIG. 1, the busbar 100 according to an embodiment of the present invention includes a main body portion 110 and a bent portion 130, and the busbar 100 may be formed of a conductive metal material. As an example, it may be made of copper.

The main body 110 forms the overall skeleton of the busbar 100 and is formed in a plate shape with a certain area. First, a cutout 111 is formed protruding in one direction from one surface of the main body 110, and at least one hole is formed at a predetermined location. At this time, at least one hole allows air to flow to discharge heat generated from the fastening hole 115 and the main body 110 that can be fastened through fastening members such as bolts, and at the same time, automated welding It is a flow hole (117) that allows the position to be checked (confirmed) when welding through the device.

At this time, there may be at least one cutout 111, fastening hole 115, and flow hole 117, and the area of the busbar 100, the space where the busbar 100 is installed, and the number of electrically connected parts The number, shape, and dimensions can be changed depending on the number and shape.

Meanwhile, in FIG. 1, the diameter of the fastening hole 115 is shown to be larger than the diameter of the flow hole 117, but the diameter is not only changeable but also formed independently of each other, and this only shows one embodiment. It is not limited to In addition, in FIG. 1, the plurality of cut portions 111, fastening holes 115, and flow holes 117 are shown as having the same shape and dimension, but may be formed in individual shapes.

The bent portion 130 extends from the main body 110 and is bent (bended) to have a predetermined angle. Although, in Figure 1, the bent portion 130 is formed extending from one of the four sides of the main body 110, and the bent portion 130 may be formed extending from at least one of the four sides of the main body 110, At least one bending line may be formed. At this time, the bending shape and number of bending lines of the bent portion 130 may change depending on the space in which the busbar 100 is installed.

Meanwhile, a terminal portion 113 extending from one end of the cut portion 111 may be formed on the bent portion 130. At this time, the terminal portion 113 may be formed in a circular, polygonal, oval, or square shape to facilitate insertion of a conductor into a slit hole or through an electrode lead or terminal.

Figure 2a is a front view of a busbar according to an embodiment of the present invention, Figure 2b is a rear view of a busbar according to an embodiment of the present invention, and Figure 2c is a side view of a busbar according to an embodiment of the present invention.

Referring to FIGS. 2A to 2C, a plurality of cutouts 110 are formed on one side of the busbar 100 at regular intervals in the longitudinal direction, and these cutouts 111 are protrusions that protrude in one direction. It includes (111a) and a cut groove (111b) cut along the longitudinal direction at a predetermined value in the center of the protrusion (111a). Here, the cut groove 111b can be confirmed on the opposite side of one side of the busbar 100, as can be seen through FIG. 2b.

Meanwhile, the bent portion 130 is bent to have a predetermined angle, and in Figure 2c, it is bent to have an angle of about 60°, and two bending lines C1 and C2 are formed on the bent portion 130. An example is shown.

Figure 3 is a flowchart showing a manufacturing method for manufacturing a busbar according to an embodiment of the present invention.

First, when a metal member (A) having a certain length and width is seated on a mold device to manufacture a busbar, at least one incision line is formed at a predetermined location through a first piercing step (S301).

Afterwards, embossing is performed on some of the cut lines formed in the first piercing step through the embossing step (S303), and notching is performed on a portion of the outer perimeter according to the predetermined standard of the busbar through the notching step (S303). S305).

By first forming a cut line in step S301 and then performing emboss processing on some of the cut lines in step S303, the protrusion 111a and the cut groove 111b can be formed more stably in the cut portion 111. .

If embossing is first performed at the position where the incision 111 is to be formed, then the incision groove 111b is formed on the embossed incision 111, or if both operations are performed simultaneously, the incision groove 111b is formed. It is formed not smoothly or the protrusion height of the protrusion 111a is not constant.

Accordingly, according to the present invention, the protrusion 111a and the cut groove 111b formed in the cutout portion 111 of the busbar 100 can be formed so that their size and shape almost meet the design conditions.

Meanwhile, after step S305, a bending process is performed on one of the four sides at a predetermined angle through a bending step (S307), and at least one hole for fastening or heat dissipation is formed through a second piercing step (S307). S309).

Finally, through the parting step, the corresponding metal member is parted according to the busbar specifications (S311), and the busbar is shipped.

Although not shown in FIG. 3, an idle step or striking step may be additionally performed between each step as needed. Here, the strike step is to straighten the metal member bent by the pressing force, and may be additionally performed, especially after the notch step or immediately before the parting step.

Additionally, the same steps may be performed repeatedly in succession as needed. Specifically, if the part to be pierced exists in multiple locations, piercing may be performed separately for each location. For example, immediately after piercing the first location, piercing is performed at the second location. This also applies to the notch stage, banding stage, and strike stage.

Figure 4 is a diagram showing the state of a metal member in each step of the manufacturing method according to an embodiment of the present invention.

As the molds corresponding to each stage in FIG. 3 are aligned in that order, the metal member A having a certain width and length moves and is sequentially processed by the mold corresponding to each stage.

As a result, the molds for each step can be arranged in a single piece of equipment, and each step can be performed simultaneously on the metal member (A) with one drive, thereby improving production efficiency. You can do it.

Figure 5 is a flowchart showing an example of a manufacturing method for manufacturing a busbar according to an embodiment of the present invention, and Figures 6A to 6I are diagrams showing the state of the metal member corresponding to each step in Figure 5. FIGS. 6A to 6I show the state of the metal member corresponding to each step shown in FIG. 5.

First, when a metal member (A) having a certain length and width is seated in a mold device to manufacture a busbar, a fixing hole 118 is formed to prevent the metal member (A) from being separated during the molding process through a piercing operation. At least one boundary line (119a, 119b) indicating the standard boundary of the busbar is formed (S401). At this time, at least one boundary line (119a, 119b) is used to prevent the metal member from being deformed during embossing.

Thereafter, in order to form the incision 111, a plurality of incision grooves 111b and a terminal portion 113 are simultaneously formed on the main body 110 through a piercing operation (S403), and a protrusion 111a is formed through an embossing operation. ) to form (S405). Meanwhile, in step S403, an additional boundary line 119c may be formed.

Afterwards, a notch operation is performed to remove unnecessary parts according to the specifications of the busbar 100 to be manufactured (S407). At this time, if the parts to be removed exist in multiple locations, a notch operation is performed for each part. It can be performed separately and sequentially. This is because the force that can be applied to the metal member (A) is limited, so there is a limit to simultaneously removing unnecessary parts that exist in multiple locations.

Next, a bending operation is performed on both opposing sides to form the bent portion 130 and another bent portion 131 (S409). At this time, the reason for further forming the bent portion 131 is to apply the same force to both sides simultaneously as the position of the metal member A may be distorted during the bending process of the bent portion 130. That is, in order to form the bent portion 130, a bending operation is performed by applying the same force to the side on which the bent portion 130 is to be formed and the corresponding side. Meanwhile, this bending operation can be additionally performed continuously depending on the desired bending shape. As shown in FIG. 2C, when two bending lines (C1, C2) are formed, the first bending line (C1) is formed through a primary bending operation, and then the second bending line is formed through a secondary bending operation. (C2) can be formed.

Afterwards, the fastening hole 115 and the flow hole 117 are formed in the metal member A through a piercing operation (S411), and a parting operation is performed at a predetermined position to finally ship the manufactured busbar (S413) ). For example, the parting operation may be performed along the first line L1 and the second line L2.

Meanwhile, as in FIG. 3, an idle step or striking step may be additionally performed between each step as needed.

As described above, in the present invention, in forming the incision 111, the incision groove 111b is first formed through a piercing operation, and then the protrusion 111a is formed through an emboss operation to form a metal member (A). ) can be molded stably without defects such as twisting or cracking.

In this specification and drawings, preferred embodiments of the present invention are disclosed, and although specific terms are used, these are merely used in a general sense to easily explain the technical content of the present invention and aid understanding of the present invention. There is no intention to limit the scope. It is obvious to those skilled in the art that in addition to the embodiments disclosed herein, other modifications based on the technical idea of the present invention can be implemented.

Claims (11)

A main body forming the overall skeleton, which is formed in a plate shape with a certain area and has at least one cut and at least one hole protruding from one side in one direction; and
It extends from the main body and includes a bent portion bent to have a predetermined angle and shape,
Extending from one end of each of the at least one cut portion, it further includes at least one terminal portion formed on the bent portion,
Each of the at least one incision,
It includes a protrusion that protrudes in one direction, and a cut groove that is cut along the length at a predetermined value in the center of the protrusion,
The cutting groove and the terminal portion are formed simultaneously through a piercing operation,
A busbar, characterized in that the protrusion is formed to protrude in the one direction by performing embossing at the position where the cutting groove is formed after the piercing operation.
According to paragraph 1,
At least one hole,
A fastening hole that allows fastening through a fastening member; and
A busbar characterized in that it includes a flow hole that allows air to flow in order to discharge heat generated in the main body.
According to paragraph 1,
The terminal part,
A busbar characterized in that it is formed in any one of the shapes of circular, polygonal, oval, and square to facilitate the penetration of electrode leads or terminals or the insertion of conductors into slit holes.
According to paragraph 1,
The bending part is
A busbar comprising at least one bending line.
According to paragraph 1,
Each of the at least one incision,
A busbar characterized in that it is arranged at predetermined intervals and formed in the longitudinal direction.
When a metal member having a certain length and width is seated, at least one cut line is formed at a predetermined position, and a first piercing is formed to form a plurality of cut grooves on one surface of the metal member and a terminal portion extending to one end of each of the cut grooves. step;
An embossing step of performing an embossing process at a position where the incision groove is formed to form at least one incision to include a protrusion that protrudes in one direction;
A notch step of notching and removing a portion of the outer portion of the busbar according to a predetermined standard of the busbar;
A banding step of performing a bending process on one of the four sides formed by the notch process at a predetermined angle and shape;
A second piercing step of forming at least one hole for fastening or heat dissipation; and
A busbar manufacturing method comprising a parting step of cutting a metal member according to a predetermined busbar standard and shipping the busbar.
According to clause 6,
The first piercing step is,
A busbar manufacturing method characterized by forming a fixing hole for fixing the metal member and at least one boundary line indicating a standard boundary of the busbar.
In clause 7,
The terminal part,
A method of manufacturing a busbar, characterized in that the busbar is formed in any one of a circular, polygonal, oval, and square shape to facilitate insertion of a conductor into a slit hole or through an electrode lead or terminal.
In clause 7,
The plurality of incisions,
A method of manufacturing busbars, characterized in that they are arranged at predetermined intervals and formed in the longitudinal direction.
delete According to clause 6,
Between each of the above steps,
An idle phase or striking phase is additionally performed,
The idle stage is a stage in which no operation is performed,
The striking step is a busbar manufacturing method, characterized in that it is a step of performing an operation to straighten a metal member bent by a pressing force.

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