KR101821247B1 - Terminal Block for Distibuting Electric Power - Google Patents

Abstract

The present invention relates to a terminal block connected to a circuit breaker, comprising: a housing including a first housing and a second housing coupled with the first housing; A power distributor disposed in an inner space formed by the engagement of the first housing and the second housing; A protective cover hinged to one end of the housing and fastened or separated from the other end of the housing; And a dummy block disposed between the first housing and the second housing, wherein the dummy block is fastened to the housing of the terminal block, so that the entire width of the terminal block can be easily adjusted Thus, a single terminal block is commonly applicable to circuit breakers of various widths.

Description

[0001] The present invention relates to a terminal block for distibuting electric power,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a terminal block for power distribution, and more particularly, to a terminal block for power distribution which is connected to a circuit breaker and is capable of easily and safely branching a plurality of power sources.

2. Description of the Related Art In general, a building, a factory, an apartment or the like is provided with a water distribution apparatus that receives electricity supplied from a power company and distributes the electricity to a load of each customer. The power distribution system is designed to supply high voltage or extra high voltage electricity to the respective load of the customer after decompressing according to the application. It is used for various relay devices such as various circuit breakers, protective devices, and current transformers, power meters, video transformers, ammeters, Respectively.

The power distribution apparatus includes a main breaker installed inside a predetermined cabinet, a plurality of distribution breakers electrically connected to the main breaker, and a plurality of booth bars.

Also, in order to distribute and supply electricity through a bus bar, electric wires for power distribution are connected to a plurality of bus bars.

Therefore, since the bus bar for electrical connection and distribution is always provided in a state of being exposed when connected, there is always a risk of a safety accident due to exposure, and there is a problem that the appearance is not good.

Korean Patent No. 10-1543741

An object of the present invention is to provide a terminal block for power distribution, which can be connected to a circuit breaker, and can easily and safely divide the power source into a plurality of power sources.

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

In order to solve the above-mentioned problems, the present invention provides a terminal block connected to a circuit breaker, comprising: a housing including a first housing and a second housing coupled with the first housing; A power distributor disposed in an inner space formed by the engagement of the first housing and the second housing; A protective cover hinged to one end of the housing and fastened or separated from the other end of the housing; And a dummy block disposed between the first housing and the second housing.

Further, the present invention provides a terminal block wherein one side surface of the dummy block is fastened to the first housing, and the other side surface of the dummy block is fastened to the second housing.

The present invention is characterized in that the power distributing portion includes a connecting piece disposed on one side of the inner space and a distribution terminal portion disposed on the other side of the inner space, the connecting piece including a connecting piece body portion and an extending portion extending from the connecting piece body portion And a connecting piece extension portion which is formed in the terminal block.

The distribution terminal portion may include a first distribution terminal portion, a second distribution terminal portion positioned adjacent to the first distribution terminal portion, and a third distribution terminal portion positioned adjacent to the second distribution terminal portion, The second distribution terminal portion is disposed in a stepped shape at the lower end of the distribution terminal portion and the third distribution terminal portion is located at the lower end of the second distribution terminal portion in a stepped shape.

The upper end of the housing may include a horizontal plate portion, a vertical plate portion extending from the horizontal plate portion, a first projection portion extending from the vertical plate portion, and a second projection portion continuously extending from the first projection portion. And a terminal block.

The first protrusion and the second protrusion are in the form of a semicircular protrusion, and the first protrusion and the second protrusion correspond to a form in which semicircular protrusions are connected to each other in a mutually continuous manner, Wherein a curved first concave portion is formed at a connection point between the protrusion and the second protrusion and a second protrusion is formed at a connection point between the vertical plate portion and the first protrusion, And a terminal block in which a concave portion is formed.

According to another aspect of the present invention, there is provided a protective cover according to the first aspect, wherein one side of the protective cover part includes a convex part, the convex part is in the form of a semi-circular protruding part, And the second concave portion is coupled with the convex portion formed at one side of the protective cover portion to provide a two-step open.

According to the present invention as described above, it is possible to provide a terminal block for power distribution, which is connected to the circuit breaker, and which can easily and safely branch a plurality of power sources.

Further, in the present invention, the entire width of the terminal block can be easily adjusted by including the dummy block fastened to the housing of the terminal block, so that a single terminal block can be commonly applied to circuit breakers having various widths .

In addition, in the present invention, the protection cover portion is detached from the other upper end of the housing, and the protection cover portion is opened by a two-step opening, whereby the protection cover portion can be prevented from being unintentionally closed have.

1B is a side view showing a connection state between a terminal block for power distribution and a circuit breaker according to the present invention. FIG. 1C is a side view FIG. 4 is an exploded perspective view showing a connection state of a power distribution terminal block and a circuit breaker according to the invention.
FIG. 2A is an assembled perspective view illustrating a terminal block according to the first embodiment of the present invention, and FIG. 2B is an exploded perspective view illustrating a terminal block according to the first embodiment of the present invention.
FIG. 3A is an assembled perspective view illustrating a terminal block according to a second embodiment of the present invention, and FIG. 3B is an exploded perspective view illustrating a terminal block according to a second embodiment of the present invention.
4A and 4B are schematic views for explaining the separation or fastening of the housing and the protective cover portion of the terminal block according to the present invention.
5 is a view showing the kind of a circuit breaker sold on the market.
FIG. 6A is a view showing an example of a terminal block implementing various widths by applying a dummy block, and FIG. 6B is a view illustrating an example of applying various widths of terminal blocks to various widths of circuit breakers.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. &Quot; and / or "include each and every combination of one or more of the mentioned items. ≪ RTI ID = 0.0 >

Although the first, second, etc. are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are used only to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may be the second component within the technical scope of the present invention.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. The terms " comprises "and / or" comprising "used in the specification do not exclude the presence or addition of one or more other elements in addition to the stated element.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

The terms spatially relative, "below", "beneath", "lower", "above", "upper" And can be used to easily describe a correlation between an element and other elements. Spatially relative terms should be understood in terms of the directions shown in the drawings, including the different directions of components at the time of use or operation. For example, when inverting an element shown in the figures, an element described as "below" or "beneath" of another element may be placed "above" another element . Thus, the exemplary term "below" can include both downward and upward directions. The components can also be oriented in different directions, so that spatially relative terms can be interpreted according to orientation.

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

1B is a side view showing a connection state between a terminal block for power distribution and a circuit breaker according to the present invention. FIG. 1C is a side view FIG. 4 is an exploded perspective view showing a connection state of a power distribution terminal block and a circuit breaker according to the invention.

1A to 1C, a connection state 10 of a terminal block for power distribution and a breaker according to the present invention includes a breaker 100 and a terminal block 200 for power distribution connected to the breaker 100 do.

Hereinafter, the terminal block 200 for power distribution will be abbreviated as a terminal block.

The circuit breaker 100 includes an input terminal 120 located at one side of the breaker body and an output terminal 140 located at the other side of the breaker body.

More specifically, the input terminal portion 120 includes a first input terminal portion 120a, a second input terminal portion 120b positioned adjacent to the first input terminal portion 120a, and a second input terminal portion 120b adjacent to the second input terminal portion 120b. And a third input terminal portion 120c positioned on the same side.

The output terminal portion 140 includes a first output terminal portion 140a, a second output terminal portion 140b positioned adjacent to the first output terminal portion 140a, and a second output terminal portion 140b adjacent to the second output terminal portion 120b. And a third output terminal part 140c.

In this case, although the input terminal portion and the output terminal portion are shown as three in the figure, the input terminal portion and the output terminal portion may be at least one.

The circuit breaker according to the present invention includes a terminal cover unit 130 covering the output terminal unit 140. The terminal cover unit 130 covers the output terminal unit 140, It is possible to protect the connection part of the connection piece (to be described later) connected to the output terminal part.

Further, the switch unit 110 includes a switch unit 110 located in a predetermined region of the circuit breaker body.

The construction of the above-described circuit breaker is self-evident in the art, and a detailed description thereof will be omitted below.

1A to 1C, a terminal block 200 according to the present invention includes a first terminal block 210a connected to the first output terminal portion 140a, a second terminal block 210b connected to the second output terminal portion 140b, A second terminal block 210b positioned adjacent to the first terminal block 210a and a second terminal block 210b connected to the third output terminal portion 140c and positioned adjacent to the second terminal block 210b, 3 terminal block 210c.

In this case, although the terminal block is shown as three in the figure, in the present invention, the terminal block may be at least one or more, and may be appropriately determined by the user depending on the number of the output terminal portions.

Hereinafter, the terminal block according to the present invention will be described in more detail. In the following description, the first terminal block 210a will be described. The second terminal block and the third terminal block may be the same as the first terminal block.

FIG. 2A is an assembled perspective view illustrating a terminal block according to the first embodiment of the present invention, and FIG. 2B is an exploded perspective view illustrating a terminal block according to the first embodiment of the present invention.

Referring to FIGS. 2A and 2B, a terminal block 210a according to the first embodiment of the present invention includes a housing having an inner space, and the housing includes a first housing 220a and a first housing 220a And a second housing 230b coupled to the second housing 230b.

In the present invention, an inner space is formed by the engagement of the first housing 220a and the second housing 230b.

The terminal block 210a according to the first embodiment of the present invention includes a power distributor 230 disposed in an inner space formed by coupling the first housing 220a and the second housing 230b do.

The power distribution unit 230 includes a connection terminal 231 disposed at one side of the internal space and a distribution terminal unit 240 disposed at the other side of the internal space. And the distribution terminal unit 240 are electrically connected to each other.

The connecting piece 231 includes a connecting piece body portion 231a and a connecting piece extending portion 231b extending from the connecting piece body portion 231a and the width of the connecting piece extending portion 231b, And is narrower than the width of the body portion 231a.

The connecting piece extension portion 231b includes a coupling hole 232 and may be electrically connected to the output terminal portion of FIG. 1 through the coupling hole.

At this time, connection of the connection piece extension part and the output terminal part may be connected through a known screw connection, but the connection method of the connection piece extension part and the output terminal part is not limited in the present invention.

As shown in the drawing, the distribution terminal unit 240 may include a first distribution terminal unit 240a, a second distribution terminal unit 240b positioned adjacent to the first distribution terminal unit 240a, And a third distribution terminal portion 240c positioned adjacent to the second distribution terminal portion 240b.

In the present invention, the plurality of distribution terminal portions 240 may be formed in a stepped shape. That is, as shown in the figure, the second distribution terminal portion 240b is connected to the lower end of the first distribution terminal portion 240a And the third distribution terminal portion 240c may be positioned in a stepped manner continuously at the lower end of the second distribution terminal portion 240b.

Through the stepwise arrangement of the plurality of distribution terminal portions, the number of power sources to be distributed can be increased while minimizing the size of the terminal block.

2A and 2B, a terminal block 210a according to the first embodiment of the present invention is hinged to one upper end of the housing, and is coupled to or separated from the other upper end of the housing. (250).

That is, one side of the protective cover unit 250 is hinged to one end of the housing and rotates around the hinge shaft. Through the rotation of the protective cover unit 250 about the hinge shaft, And can be fastened or separated from the other upper end of the housing. Such separation or fastening will be described later.

Meanwhile, as shown in FIG. 2A, the width of the terminal block may be A's width.

That is, as described above, the terminal block 210a according to the first embodiment of the present invention includes a housing having an inner space, and the housing includes a first housing 220a, a first housing 220a, And the width of the terminal block may be determined by a sum of the width of the first housing 220a and the width of the second housing 230b.

1A to 1C, the terminal block may include a plurality of terminal blocks, and the terminal block may be electrically connected to the output terminal portion 140 of the circuit breaker 100, The total width occupied by the terminal block must be narrower or equal to the total width occupied by the output terminal portion of the circuit breaker in order to be fastened to the output terminal portion of the circuit breaker.

That is, when the entire width occupied by the terminal block is wider than the entire width occupied by the output terminal portion of the circuit breaker, the width occupied by the terminal block is wider than the width occupied by the circuit breaker. Therefore, A larger space is required than the space of FIG.

Therefore, in the present invention, the entire width of the terminal block is narrower than or equal to the total width occupied by the output terminal portion of the circuit breaker, so that the terminal block can be installed within a range of the width occupied by the circuit breaker.

For example, assuming that the number of the terminal blocks is N, the total width of A × N, which is a product of A, which is the width of each terminal block, and N, which is the number of terminal blocks, Must be narrower or equal to the total width occupied by the output terminal portion of the circuit breaker.

In the present invention, the width A of the terminal block can be determined through the width of the housing, i.e., the first housing and the second housing.

On the other hand, the total width of the output terminal portion of the circuit breaker varies depending on the type of the circuit breaker.

5 is a view showing the kind of a circuit breaker sold on the market.

Referring to Fig. 5, the breaker may be classified as a breaker having a width of 75 mm, 90 mm and 105 mm, depending on the kind.

In this case, as shown in FIG. 5, since each of the breakers has three output terminals, three terminal blocks can be connected to the output terminal.

Therefore, in order to install three terminal blocks on a circuit breaker having a width of 75 mm, the width A of the housing of each terminal block must be 25 mm.

That is, in the present invention, the width of the housing of each terminal block is determined in consideration of the total width occupied by the output terminal portion of the circuit breaker and the number of output terminal portions of the circuit breaker, Or the width of the entire area of the area.

In order to be able to install three terminal blocks on a circuit breaker having a width of 90 mm, the width A of the housing of each terminal block must be 30 mm. In order to be able to install three terminal blocks on a circuit breaker having a width of 105 mm The width A of the housing of each terminal block should be 35 mm.

In this case, the width of the housing of the terminal block should be made suitable for circuit breakers of various widths, which means that each housing must be manufactured for application to each breaker.

This is because, in manufacturing the housing, each housing must be manufactured by a separate mold and a manufacturing process, so that the manufacturing cost can be increased.

Therefore, in the present invention, the following terminal block is further developed so that a single terminal block can be commonly applied to circuit breakers having various widths.

FIG. 3A is an assembled perspective view illustrating a terminal block according to a second embodiment of the present invention, and FIG. 3B is an exploded perspective view illustrating a terminal block according to a second embodiment of the present invention. The terminal block according to the second embodiment of the present invention may be the same as the first embodiment described above except for the following.

Referring to FIGS. 3A and 3B, a terminal block 210a according to a second embodiment of the present invention includes a housing having an inner space, and the housing includes a first housing 220a and a first housing 220a And a second housing 230b coupled to the second housing 230b.

In the present invention, an inner space is formed by the engagement of the first housing 220a and the second housing 230b.

The terminal block 210a according to the second embodiment of the present invention includes a power distributor 230 disposed in an inner space formed by the engagement of the first housing 220a and the second housing 230b do.

Since the configuration of the power distributor 230 is the same as that of the first embodiment, detailed description thereof will be omitted below.

The distribution terminal unit 240 may include a plurality of distribution terminal units 240 and may include a first distribution terminal unit 240a, a second distribution terminal unit 240b positioned adjacent to the first distribution terminal unit 240a, And a third distribution terminal portion 240c positioned adjacent to the second distribution terminal portion 240b.

Since the configuration of the distribution terminal unit 240 is the same as that of the first embodiment, detailed description thereof will be omitted.

The terminal block 210a according to the second embodiment of the present invention includes a protective cover part 250 hinged to one end of the housing and fastened or separated from the other end of the housing.

Since the structure of the protective cover part 250 is the same as that of the first embodiment, a detailed description thereof will be omitted.

3A and 3B, a terminal block 210a according to a second embodiment of the present invention includes a dummy block (not shown) disposed between the first housing 220a and the second housing 230b 260).

That is, one side of the dummy block 260 is coupled to the first housing 220a, and the other side of the dummy block 260 is coupled to the second housing 220b.

At this time, the dummy block 260 may have a width of W, and the entire width of the terminal block is determined by the width of the dummy block 260 and the width of the housing of the terminal block.

That is, as shown in FIG. 3A, the terminal block according to the second embodiment of the present invention can be manufactured with a width of B including the width of W, which is the width of the dummy block.

In this case, the terminal block according to the first embodiment corresponds to the width of A, and the sum of the width A of the terminal block and the width W of the dummy block according to the first embodiment is smaller than the sum of the width A of the terminal block according to the first embodiment, The width B of the width W becomes.

As described above, for example, in order to install three terminal blocks on a circuit breaker having a width of 75 mm, the width A of the housing of each terminal block must be 25 mm, and three In order to be able to install the terminal block, the width A of the housing of each terminal block must be 30 mm. In order to install three terminal blocks on the circuit breaker having the width of 105 mm, the width A of the housing of each terminal block must be 35 mm .

However, when the dummy block as described above is used, the terminal block used for the circuit breaker having a width of 75 mm can be commonly applied to circuit breakers having widths of 90 mm and 105 mm.

More specifically, when the width of the dummy block is 5 mm, one dummy block having a width of 5 mm is applied to the terminal block used for the circuit breaker having the width of 75 mm, , It is possible to commonly apply a terminal block used for a circuit breaker having a width of 75 mm to a circuit breaker having a width of 90 mm.

When the width of the dummy block is 5 mm, two dummy blocks having a width of 5 mm are applied to the terminal block used for the circuit breaker having the width of 75 mm, The terminal block used for a circuit breaker with a width of 75 mm can be commonly applied to a circuit breaker having a width of 105 mm.

As described above, in the second embodiment of the present invention, the entire width of the terminal block can be easily adjusted by including the dummy block, so that a single terminal block is commonly applicable to circuit breakers having various widths.

FIG. 6A is a view showing an example of a terminal block implementing various widths by applying a dummy block, and FIG. 6B is a view illustrating an example of applying various widths of terminal blocks to various widths of circuit breakers.

As shown in FIG. 6A, a terminal block of 25 mm is implemented through a housing of a terminal block without a dummy block applied, and a terminal block having a width of 30 mm is implemented by applying one dummy block. By applying two blocks, a terminal block with a width of 35 mm can be implemented.

Further, as shown in Fig. 6B, terminal blocks having widths of 25 mm, 30 mm and 35 mm of Fig. 6A can be connected to the circuit breakers having various widths, respectively.

Hereinafter, the separation or fastening between the housing and the protective cover will be described.

4A and 4B are schematic views for explaining the separation or fastening of the housing and the protective cover portion of the terminal block according to the present invention.

4A and 4B, the terminal block 210a according to the present invention includes a protection cover part 250 hinged to one end of the housing and fastened or separated from the other end of the housing.

One end 253 of the protective cover 250 is hinged to an upper end of the housing 220a and rotates about the hinge shaft 227. The hinge shaft 227 The other side 251 of the protective cover part 250 can be fastened to or separated from the other upper end 221 of the housing 220a.

The other side 251 of the protective cover 250 includes a coupling protrusion 252. The other side upper end 221 of the housing 220a includes a coupling groove 222, (Z in Fig. 4B) by tightly fitting the housing cover 222 to the housing and the protective cover portion (BB 'region).

In addition, in the present invention, the protection cover portion is detached from the other upper end of the housing, and the protection cover portion is opened by a two-step opening. That is, as shown in FIG. 4A, It is possible to open one opening at an angle of 120 ° and open at a two-step opening at an angle of 120 °.

However, the angles of 100 ° and 120 ° are illustrative, and the angle is not limited in the present invention, but it is preferable that the angle is determined within the range of the obtuse angle.

4A and 4B, one end (not shown) of the housing 220a includes a horizontal plate portion 223, a vertical plate portion 224 extending from the horizontal plate portion 223, And includes a first protrusion 226 extending from the vertical plate portion 224 and a second protrusion 225 continuously disposed with the first protrusion 226.

The first protrusion 226 and the second protrusion 225 are in the form of semi-circular protrusions, and the first protrusion 226 and the second protrusion 225 are formed in a half A curved first concave portion is formed at a connection point between the first protrusion 226 and the second protrusion 225. The first protrusion 226 and the second protrusion 225 are connected to each other.

A second concave portion in which a curved shape and a straight line shape are continuously arranged is formed at a connection point between the vertical plate portion 224 and the first projection 226, A curved concave portion is formed by the projecting portion and a linear concave portion is formed by a straight plate (not shown) extending from the vertical plate portion 224, The second concave portion can be formed by connecting the concave portion of the rectilinear shape to the concave portion.

One side of the protective cover unit 250 includes a convex portion X and the convex portion X has a semi-circular protrusion.

At this time, in the present invention, the convex portion X formed on one side of the protective cover portion 250 is coupled with the first concave portion to make one-end open, and one side of the protective cover portion 250 The convex portion X formed in the second concave portion is coupled with the second concave portion so that the second concave portion is opened.

4A, a convex portion X formed on one side of the protective cover portion 250 is curved at a connection point between the first protrusion 226 and the second protrusion 225, 4B, a first convex portion is formed at one side of the protective cover portion 250, and a second convex portion is formed at one side of the protective cover portion 250, ) Portion X is located at the connection point between the vertical plate portion 224 and the first projection portion 226 and is located in a second concave portion of a shape in which a linear shape is continuously arranged It is possible to open two steps at an angle of 120 °.

In the present invention, such a two-stage open structure is for convenience of operation.

For example, the breaker and the terminal block according to the present invention are often installed on a wall.

That is, assuming that the terminal block is installed on the wall surface, the protective cover may be closed again in the single-stage open structure.

Therefore, in the present invention, when the protective cover portion is opened at an angle of about 120 degrees, which is a two-stage open structure, there is no case where the protective cover portion is closed again. Even if the protective cover portion is closed, It is possible to prevent the protective cover from unintentionally being closed.

4B, the horizontal plate portion 223 of the housing may serve as a stopper to prevent the protective cover from being opened beyond an angle of 120 DEG.

As described above, according to the present invention, it is possible to provide a terminal block for power distribution, which is connected to the circuit breaker, and which can easily and safely branch a plurality of power sources.

Further, in the present invention, the entire width of the terminal block can be easily adjusted by including the dummy block fastened to the housing of the terminal block, so that a single terminal block can be commonly applied to circuit breakers having various widths .

In addition, in the present invention, the protection cover portion is detached from the other upper end of the housing, and the protection cover portion is opened by a two-step opening, whereby the protection cover portion can be prevented from being unintentionally closed have.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

Claims (7)

A terminal block comprising a housing,
Wherein one upper end of the housing includes a horizontal plate portion, a vertical plate portion extending from the horizontal plate portion, a first projection extending from the vertical plate portion, and a second projection continuously arranged with the first projection,
The first protrusion and the second protrusion being in the form of semi-circular protrusions,
Wherein the first protrusion and the second protrusion correspond to a shape in which the semicircular protrusions are connected to each other, a first concave portion in a curved shape is formed at a connection point between the first protrusion and the second protrusion,
Wherein a second concave portion is formed at a connection point between the vertical plate portion and the first projection portion in such a manner that a curve shape and a straight line shape are continuously arranged. The method according to claim 1,
The housing includes a first housing and a second housing coupled with the first housing,
A power distributor disposed in an inner space formed by the engagement of the first housing and the second housing;
A protective cover hinged to one end of the housing and fastened or separated from the other end of the housing; And
And a dummy block disposed between the first housing and the second housing. 3. The method of claim 2,
Wherein one side surface of the dummy block is fastened to the first housing and the other side surface of the dummy block is fastened to the second housing. 3. The method of claim 2,
Wherein the power distribution unit includes a connection piece disposed on one side of the inner space and a distribution terminal part disposed on the other side of the inner space,
Wherein the connecting piece includes a connecting piece body portion and a connecting piece extending portion extending from the connecting piece body portion. 5. The method of claim 4,
The distribution terminal portion includes a first distribution terminal portion, a second distribution terminal portion positioned adjacent to the first distribution terminal portion, and a third distribution terminal portion positioned adjacent to the second distribution terminal portion,
Wherein the second distribution terminal portion is disposed in a stepped shape at a lower end of the first distribution terminal portion and the third distribution terminal portion is located at a lower end of the second distribution terminal portion in a stepped manner. delete 3. The method of claim 2,
One side of the protective cover portion includes a convex portion, the convex portion is in the form of a semi-circular protrusion,
A convex portion formed on one side of the protective cover portion and a first concave portion formed by the convex portion formed on one side of the protective cover portion are combined with each other, Terminal block with two open ends combined.

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