KR20230009592A - Bus bar and the manufacturing method therof - Google Patents

Abstract

The present invention relates to a bus bar and a manufacturing method thereof. More specifically, the bus bar comprises: a main body portion configured to form an overall skeleton, formed in a plate shape having a certain area, and having at least one cutout portion protruding in one direction from one surface and at least one hole; a bent portion formed to extend from the main body portion and bent to have a predetermined angle and shape; and a terminal groove formed to extend from one end of the cutout portion and formed on the cutout 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 particularly, to a busbar used to design an electrical connection between each component element and a support structure, and a manufacturing method thereof.

Bus bar, a medium that transmits electrical energy, constitutes transmission circuits such as large transmission and distribution lines with large current capacity, conductors for electric 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, due to various advantages of busbars, they are widely used as substitutes for cables.

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 are recognized in large-capacity distribution systems, their usage is rapidly increasing. Compared to the past, demand for large buildings, large factories, power plants, subways, etc. Accordingly, the busbar is recognized as a very suitable part for the modern large-capacity transmission system because it is safe and the loss of energy is small.

Busbars are used to design electrical connections and support structures between each component element when space is limited, such as in automobile parts. to be.

On the other hand, busbars are applied to power distribution facilities or distribution boards used in various construction sites or factories, and there are various standards and shapes of busbars ranging from low-capacity busbars to high-capacity busbars.

In the process of manufacturing the busbar, a number of processes such as incision, bending, and perforation are performed, and at this time, there is a problem in that the pressure is deviating from the originally designed value.

Therefore, it is necessary to develop a busbar that is close to the originally designed number and a manufacturing method thereof.

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

Therefore, the present invention has been proposed to solve the above problems, and by efficiently combining processes such as cutting, bending, and punching to perform mold molding, a busbar manufactured to be close to the initially designed value, and It is to provide a manufacturing method thereof.

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

Objects of the present invention are not limited to those mentioned above, and other objects not mentioned above 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 having a certain area, and includes a body portion in which at least one cutout protruding from one surface in one direction and at least one hole are formed; and a bent portion extending from the main body portion and bent to have a predetermined angle and shape, and extending from one end of the cutout portion, and may further include a terminal groove formed on the bent portion.

Meanwhile, a method for manufacturing a busbar according to the present invention includes a first piercing step of forming at least one incision line at a predetermined location when a metal member having a certain length and width is seated; An embossing step of forming an incision by performing an embossing process on a part of the formed incision line; A notch step of removing by performing a notch process on a part of the periphery according to a predetermined standard of the bus bar; a bending step of performing a bending process at a predetermined angle and shape on one of the four sides formed by the notch process; A second piercing step of forming at least one hole for fastening or heat dissipation; and a parting step of shipping the busbar by cutting the metal member according to a predetermined standard of the busbar.

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

In addition, according to the present invention, it is possible to improve economic efficiency by stably manufacturing the improved busbar 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.

1 is a perspective view of a busbar according to an embodiment of the present invention.
2A is a front view of a busbar according to an embodiment of the present invention.
2B is a rear view of a bus bar according to an embodiment of the present invention.
2C is a side view of a busbar according to an embodiment of the present invention.
3 is a flowchart illustrating a manufacturing method for manufacturing a busbar according to an embodiment of the present invention.
4 is a diagram showing a state of a metal member by each step of a manufacturing method according to an embodiment of the present invention.
5 is a flowchart illustrating an example of a manufacturing method for manufacturing a busbar according to an embodiment of the present invention.
6A to 6I are diagrams illustrating states of metal members corresponding to each step of 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 accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, and may be implemented in various forms and various changes may be applied. However, the description of the present embodiments is provided to complete the disclosure of the present invention, and to completely inform those skilled in the art of the scope of the invention to which the present invention belongs. In the accompanying drawings, the size of the components is enlarged from the actual size for convenience of description, and the ratio of each component may be exaggerated or reduced.

It should be understood that when an element is described as being “on” or “adjacent to” another element, it may be in direct contact with or connected to the other element, but another element may exist in the middle. something to do. On the other hand, when a component is described as “directly on” or “directly in contact with” another component, it may be understood that another component does not exist in the middle. Other expressions describing the relationship between components, such as "between" and "directly between" can be interpreted similarly.

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

Singular expressions include plural expressions unless the context clearly dictates otherwise. The terms "include" or "has" are used to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, and includes one or more other features or numbers, It can be interpreted that steps, actions, components, parts, or combinations thereof may be added.

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

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

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

Referring to FIG. 1, a busbar 100 according to an embodiment of the present invention includes a 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 a copper material.

The body part 110 forms the overall skeleton of the bus bar 100, and is formed in a plate shape having a certain area. First, a cutout 111 protruding in one direction from one surface of the body portion 110 is formed, and at least one hole is formed at a predetermined location. At this time, the hole allows air to flow in order to discharge heat generated from the fastening hole 115 and the body portion 110 that allow at least one or more holes to be fastened through a fastening member such as a bolt, and automated welding at the same time. It is a floating hole 117 that allows you to check (confirm) the position when welding through the device.

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

On the other hand, although the diameter of the fastening hole 115 is shown larger than the diameter of the flow hole 117 in FIG. 1, the diameter is not only changeable but also formed independently of each other, which is only showing one embodiment, so not limited to In addition, although each cutout 111, fastening hole 115, and flow hole 117, which are formed in plurality in FIG. 1, are all shown as having the same shape and dimension, they may be formed in individual shapes.

The bent portion 130 extends from the body portion 110 and is bent (bent) to have a predetermined angle. Although, in FIG. 1, the bent portion 130 is formed extending from one of the four sides of the body portion 110, and the bent portion 130 may extend from at least one of the four sides of the body portion 110, At least one or more bending lines may be formed. At this time, the bending shape and the number of bending lines of the bending part 130 may be changed according to the space where the bus bar 100 is installed.

Meanwhile, a terminal portion 113 extending from one end of the cutout portion 111 may be formed on the bent portion 130 . At this time, the terminal unit 113 may be formed in a circular shape, a polygonal shape, an oval shape, a square shape, etc. to allow an electrode lead or terminal to pass through or a conductor to be easily inserted into the slit hole portion.

2A is a front view of a busbar according to an embodiment of the present invention, FIG. 2B is a rear view of a busbar according to an embodiment of the present invention, and FIG. 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 arranged at regular intervals on one surface of the busbar 100 and formed in the longitudinal direction. The cutouts 111 are protruding parts in one direction. (111a), and a cutout groove (111b) cut along the longitudinal direction with a predetermined value at the center of the protrusion (111a). Here, the incision groove 111b can also be confirmed on the opposite side of one side of the bus bar 100, as can be seen through FIG. 2B.

On the other hand, the bent part 130 is bent to have a predetermined angle, and in FIG. 2C, it is bent to have an angle of about 60 °, and two bending lines C1 and C2 are formed on the bent part 130. An example is shown.

3 is a flowchart illustrating 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 placed in a mold device to manufacture a busbar, at least one incision line is formed at a predetermined position through a first piercing step (S301).

Thereafter, emboss processing is performed on some of the incision lines formed in the first piercing step through an embossing step (S303), and through a notch step, a notch treatment is performed on a part of the outside according to a predetermined standard of the busbar ( S305).

The protrusion 111a and the incision groove 111b can be more stably formed in the incision 111 by first forming the incision line in step S301 and then embossing some incision lines in step S303. .

If, after first performing the embossing process at the location where the incision 111 is to be formed, the incision groove 111b is formed on the embossed incision 111 or if both operations are performed simultaneously, the incision groove 111b It is not smooth or the protruding height of the protruding portion 111a is not constant.

Thus, according to the present invention, the protrusions 111a and the cutouts 111b formed in the cutout 111 of the busbar 100 can be formed so that their dimensions and shapes almost meet the design conditions.

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

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

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

In addition, the same step may be repeatedly performed in succession as needed. Specifically, when parts to be pierced exist in several locations, piercing may be performed separately for each location. For example, immediately after performing the piercing of the first location, piercing of the second location is performed. This is the same in the notch step, the bending step, and the strike step.

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

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

As a result, the molds according to each step can be provided in one equipment in a line-arranged form, and each step can be simultaneously performed on the metal member (A) by one drive (operation) to improve production efficiency. can make it

5 is a flowchart illustrating an example of a manufacturing method for manufacturing a busbar according to an embodiment of the present invention, and FIGS. 6A to 6I are diagrams showing states of metal members corresponding to each step of FIG. 5 . 6A to 6I show states of metal members 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 for preventing the metal member (A) from being separated during the mold process through a piercing operation and At least one or more boundary lines 119a and 119b indicating standard boundaries of the busbar are formed (S401). At this time, at least one boundary line (119a, 119b) is to prevent the metal member from being deformed during the embossing process.

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

Thereafter, a notch operation is performed to remove unnecessary parts according to the standard of the busbar 100 to be manufactured (S407). At this time, when the parts to be removed exist in several locations, a notch operation is performed for each part. It can be separated and divided continuously. This is because the force that can be applied by the metal member A is limited, and there is a limit to simultaneously removing unnecessary parts present in various locations.

Next, a bending operation is performed on both sides facing each other to form a bent portion 130 and another bent portion 131 (S409). At this time, the reason why the bent part 131 is further formed is to apply the same force to both sides at the same time since the position of the metal member A may be distorted in the process of bending the bent part 130 . That is, in order to form the bent portion 130, the same force is applied to the side to form the bent portion 130 and the corresponding side to perform the bending operation. Meanwhile, this bending operation may be continuously additionally performed according to a desired bending shape. As shown in FIG. 2C , when two bending lines C1 and 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.

Thereafter, 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 on a predetermined position to finally ship the manufactured bus bar (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 a striking step may be additionally performed between each step, if necessary.

As described above, in the present invention, in forming the incision 111, the metal member A ) can be stably molded without defective elements such as twisting or crying.

In the present specification and drawings, preferred embodiments of the present invention are disclosed, and although specific terms are used, they are only used in a general sense to easily describe the technical content of the present invention and help understanding of the present invention, It is not intended to limit the scope. It is obvious to those skilled in the art that other modifications based on the technical idea of the present invention can be implemented in addition to the embodiments disclosed herein.

Claims (11)

A main body portion forming an overall skeleton, formed in a plate shape having a certain area, and having at least one cutout protruding in one direction from one surface and at least one hole; and
It extends from the main body and includes a bent portion bent to have a predetermined angle and shape,
The bus bar further comprises a terminal groove extending from one end of the cutout and formed on the bent portion.
According to claim 1,
at least one hole,
A fastening hole to be fastened through the fastening member; and
A busbar characterized in that it includes a flow hole through which air can flow to dissipate heat generated in the main body.
According to claim 1,
The terminal part,
A busbar characterized in that it is formed in any one of circular, polygonal, elliptical and rectangular shapes so that electrode leads or terminals penetrate or conductors are easily inserted into the slit hole.
According to claim 1,
The bent part,
A bus bar comprising at least one bending line.
According to claim 1,
When the plurality of incisions are formed, the plurality of incisions are arranged at predetermined intervals and formed in the longitudinal direction,
Each cutout portion includes a protruding portion protruding in one direction, and a cutout groove cut along the longitudinal direction at a predetermined number at the center of the protruding portion.
A first piercing step of forming at least one incision line at a predetermined location when a metal member having a predetermined length and width is seated;
An embossing step of forming an incision by performing an embossing process on a part of the formed incision line;
A notch step of removing by performing a notch process on a part of the periphery according to a predetermined standard of the bus bar;
a bending step of performing a bending process at a predetermined angle and shape on one side of the four sides formed by the notch process;
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 shipping the busbar by cutting the metal member according to a predetermined standard of the busbar.
According to claim 6,
The first piercing step,
forming at least one boundary line indicating a standard boundary between a fixing hole for fixing the metal member and a bus bar; and
A method for manufacturing a busbar, comprising forming a plurality of incision grooves on one surface and extending and forming a terminal part at one end of each incision groove.
According to claim 7,
The terminal part,
A method for manufacturing a busbar, characterized in that it is formed in any one of circular, polygonal, elliptical and rectangular shapes so that electrode leads or terminals penetrate or conductors are easily inserted into the slit hole.
According to claim 7,
The plurality of incisions,
A method for manufacturing a busbar, characterized in that it is arranged at predetermined intervals and formed in the longitudinal direction.
According to claim 9,
The embo step,
The method of manufacturing the busbar, characterized in that the incision is formed to have a protrusion protruding in one direction by performing an embossing process at the position where the incision groove is formed.
According to claim 6,
Between each step,
An idle step or a striking step is additionally performed,
The idle phase is a phase in which no operation is performed,
The strike step is a method for manufacturing a busbar, characterized in that the step of performing an operation to straighten the metal member bent by the pressed force.

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