KR20170002457U

KR20170002457U - Electric watt meter box

Info

Publication number: KR20170002457U
Application number: KR2020150008601U
Authority: KR
Inventors: 박철규
Original assignee: (주)세진상아
Priority date: 2015-12-29
Filing date: 2015-12-29
Publication date: 2017-07-07
Also published as: KR200484332Y1

Abstract

The present invention relates to an electric meter box. The present invention relates to an electronic apparatus having an external casing in which a storage space is formed, an internal housing (10) installed in the storage space and forming a work space in a rear portion thereof, And a distribution load line (BC, BC ') distributed from the terminal block assembly (100, 130) installed on the outer surface of the inner housing (10) And at least one breaker 50, 50 'connected to a power load line extending from the watt hour meter 30, 30'. The terminal block assemblies 100 and 130 include a main block 100 connected to main trunks MC1 and MC2 for supplying external power, and a main block 100 electrically connected to both ends of the main block 100, And a side block 130 to which a plurality of distribution load lines BC and BC 'are connected to distribute the power of the power meters MC1 and MC2 to the watt-hour meters 30 and 30'. The terminal block assemblies 100 and 130 are mounted on the electric meter main body in such a manner that the main block 100 to which the main trunk lines MC1 and MC2 are connected is connected to the distribution load lines BC and BC ' And the side blocks 130. Therefore, only the main trunk MC1 and MC2 need to be connected to the main block 100 by the operator when the electric meter box is installed.

Description

Electric watt meter box

The present invention relates to an electric meter main body, and more particularly, to an electric meter main body in which an external power source can be connected to an electric power meter by using an internal terminal block assembly.

During the construction of the building where electricity is used, a meter box is installed between the outside of the building and the inside of the building. The meter box is internally equipped with a watt hour meter for measuring the amount of electricity supplied to the interior of the building, a circuit breaker for interrupting the overload in the building, a meter, and a communication terminal.

In addition, a power distributor is installed in order to distribute the power from the power line supplying power to the watt hour meter, and the power split by the power distributor is supplied to the watt hour meter through the power line for branching.

Generally, when a building is constructed, only a power line and a meter box are supplied to the outer wall of the concrete. After that, in order to branch the power line for the internal construction work, the middle portion of the power line is torn away, The power line and the branch power line are pressed against each other.

However, since the connection operation is performed in the relatively small space of the metering chamber, the workability is very low. In particular, when there are many power lines for branching from the power line, the working time can be greatly increased according to the skill of the operator. In addition, the operator must connect the power line while checking the power distribution design of the meter box. The more power lines for branching, the greater the possibility of being connected differently.

Further, when a terminal block for distributing a power supply line applied from the outside is used, a terminal block is added in the meter box, thereby increasing the total area occupied by the meter box.

Korean Patent No. 10-1068743

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide an electrical connection between a distributor and a watt hour meter inside a meter box through a terminal block assembly.

Another object of the present invention is to provide a terminal block assembly on the backside of an inner housing provided inside a metering chamber so that the total area of the metering chamber is not increased.

According to an aspect of the present invention, there is provided a portable terminal including an outer casing having a housing space therein, an inner housing disposed in the housing space and having a work space formed in the rear thereof, A watt-hour meter installed on an outer surface of the inner housing and connected to a distribution load line distributed from the terminal block assembly to measure an amount of power, and a watt- A main block connected to a main trunk for supplying external power; a main block provided on both sides of the main block and electrically connected to the main trunk line, For distributing power to the watt hour meter It includes a side block which is connected to the load line.

Wherein a pair of side blocks of the terminal block assembly are fixed to a back surface of the inner housing, the main block is coupled between the pair of side blocks, and a bus bar connected to the main trunk is provided in the main block, And are electrically connected by contacting a pair of side blocks.

The main block includes a block housing having a main passage hole through which the main trunk passes, and a block housing installed in the block housing to surround the main passage hole, electrically connected to the main trunk and at least partially exposed to the outside, A pair of bus bars in contact with the block, and a main fastener fastened to the block housing and pressing the main trunk toward the bus bar.

Wherein the bus bar is bent to correspond to the main passage hole, the main line passes through the bent portion of the bus bar, the main fastener protrudes in the direction of the main passage hole, Lt; / RTI >

A block cover is coupled to an upper portion of the main block, and a portion of the bus bar is exposed upwardly through a skin formed on the block cover.

The pair of side blocks are formed with distribution holes to which a plurality of distribution load lines are connected, and one end of the distribution load line inserted into the distribution holes is fixed by side fasteners fixed to the side blocks.

At least a part of the side block is inserted into the side housing, and a part of the side block protruded to one side of the side housing is brought into contact with the bus bar of the main block.

The main fastening holes of the main block are provided along the longitudinal direction of the main passage hole through which the main trunk passes.

The electric meter according to the present invention as described above has the following effects.

In the present invention, the terminal block assembly is provided in the electric meter box. The terminal block assembly is divided into a main block to which the main trunk line is connected and a side block to which the distribution load line is connected. Therefore, . Therefore, the worker does not need to work for connecting the power line (main trunk line) and the distribution line (distribution load line) one by one, so that the workability is improved.

In particular, since the main block of the terminal block assembly is detachable from the side block and the inner housing, an operator can further facilitate the work of connecting the main trunk to the main block.

In addition, since the terminal block assembly is installed on the rear surface of the inner housing in the present invention, the terminal block assembly does not increase the total area of the meter housing, thus enabling miniaturization of the electric meter housing.

In addition, in the present invention, the connection between the main trunk line and the distribution load line is made stable by the close contact between the bus block and the side block of the main block generated during the assembly process of the main block. Therefore, It also has the advantage of reduced workload and parts count.

When the electric meter box according to the present invention is installed, since the terminal block assembly is located on the backside of the inner housing, only the watt hour meter and the breaker are exposed when viewed from the front. Thus, the user or the operator can more intuitively identify And the usage amount can be easily checked. Since the terminal block assembly in which the power is branched is not exposed, the possibility that a large number of wires are separated or damaged is reduced.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing a structure in which an outer casing is removed in an embodiment of an electric meter according to the present invention; FIG.
Fig. 2 is a rear view showing the back surface structure of the inner housing constituting the embodiment of the present invention; Fig.
3 is an exploded perspective view showing the configuration of an inner housing and a terminal block assembly constituting the embodiment of the present invention.
4 is a perspective view showing a configuration of a main block of a terminal block assembly constituting an embodiment of the present invention;
5 is a front view showing a configuration of a main block of a terminal block assembly constituting the embodiment of the present invention;

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the understanding why the present invention is not conceived.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) can be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be "connected," "coupled," or "connected. &Quot;

As shown in the drawing, the electric meter main body according to the present invention has an outer casing and a skeleton formed by an outer casing (not shown) in which a storage space is formed. The outer casing may be combined with a cover capable of selectively opening the accommodating space, or may be made of a partly transparent material.

An inner housing (10) is provided in the storage space of the outer casing. The inner housing 10 is made of an insulating material such as synthetic resin, and the inner housing 10 is formed in a substantially plate-like shape. The inner housing 10 may be assembled to an outer casing by a fastening bracket 11 or directly fixed to a wall or the like on which the electric meter box is installed. Electricity meters 30 and 30 'and breakers 50 and 50', which will be described below, are installed on the front surface of the inner housing 10, and terminal block assemblies 100 and 130 are installed on the rear surface of the inner housing 10.

The internal housing 10 is provided with a watt-hour meter 30, 30 'and a breaker 50, 50'. The watt-hour meters 30 and 30 'are installed on the outer surface of the inner housing 10 and are connected to the terminal block assemblies 100 and 130 to measure the amount of external power supplied to the building. The external power is transmitted from the watt hour meter 30 or 30 'to the circuit breaker 50 or 50'. That is, the watt-hour meters 30 and 30 'and the breakers 50 and 50' are electrically connected to each other to distribute the power delivered from the outside to each interior of the building. In this embodiment, the watt-hour meters 30 and 30 'and the breakers 50 and 50' are each formed as a pair, but the number of the watt-hour meters 30 and 30 'and the breakers 50 and 50' Or more.

Although not shown, the power supplied from the terminal block assemblies 100 and 130 is transmitted to the power supply terminals of the watt-hour meters 30 and 30 ', and the load-side terminals of the watt-hour meters 30 and 30' The power side terminal is connected. The load side terminals of the circuit breakers 50 and 50 'are connected to the indoor wiring in each indoor space of the building to supply power. Reference symbols BC and BC 'denote distribution load lines connecting the side blocks 130 of the terminal block assemblies 100 and 130 and the power source side terminals of the watt-hour meters 30 and 30', and B1 to BC4 And BC1 'to BC4' denote individual lines constituting a distribution load line, respectively.

The watt-hour meters 30 and 30 'and the breakers 50 and 50' are installed on the entire outer surface of the inner housing 10 and the terminal block assemblies 100 and 130 are installed on the back surface of the inner housing 10. As shown in FIG. 2, the terminal block assemblies 100 and 130 are installed on the rear surface of the inner housing 10. Therefore, the terminal block assemblies 100 and 130 are not exposed when viewed from the front.

The terminal block assemblies 100 and 130 are used for dividing power supplied from the outside and transferring them to different spaces. As shown in FIGS. 2 and 3, the terminal block assemblies 100 and 130 may be configured as separate modules. The terminal block assemblies 100 and 130 are detachably installed in a work space formed on the back surface of the inner housing 10 and can be fixed to the work space after being separated if necessary.

The terminal block assemblies 100 and 130 include a main block 100 and a side block 130. The main block 100 is connected to the main trunk lines MC1 and MC2 for supplying external power and the side blocks 130 are connected to the distribution load lines BC and BC2 electrically connected to the main trunk lines MC1 and MC2. ). The main block 100 and the side blocks 130 are parts that can be separated from each other and the main block 100 and the part 135 of the side block 130 are in contact with each other and electrically connected to each other. That is, the side blocks 130 of the terminal block assemblies 100 and 130 are fixed to the back surface of the inner housing 10, and the main block 100 is coupled between the side blocks 130. The main block 100 Are provided with bus bars 110 connected to the main trunks MC1 and MC2 and are electrically connected to the side blocks 130 by contacting them.

4, the main block 100 includes a block housing 101 in which a main passage hole 113 through which the main trunks MC1 and MC2 pass is formed, Form its skeleton and appearance. The block housing 101 is made of an insulating material such as synthetic resin. A block cover 103 is provided at an upper portion of the block housing 101. The block cover 103 is coupled to an upper portion of the block housing 101 to shield most of the bus bars 110. [ Reference numeral 102 denotes a fastening hole through which a fastener 107 (see FIG. 5) is inserted into the fastening hole 102 to fix the main block 100 to the inner housing 10. Reference numeral 109 denotes a fastening bolt for fastening the block cover 103 to the main housing 101.

The main block 100 is provided with a main fastening hole 108. The main fastener 108 is fastened to the block housing 101 and presses the main trunks MC1 and MC2 toward the bus bar 110. [ That is, when the main fastener 108 is fastened, the diameter of the main passage hole 113 is narrowed, so that the distance between the main trunk MC1, MC2 passing through the main passage hole 113 and the bus bar 110 And are electrically connected to each other. The bus bar 110 may be electrically connected to the main trunk line MC1 or MC2 in the main passage hole 113 with the cover removed. 5 shows a state in which a part of the main fastening hole 108 protrudes in the direction of the main passage hole 113. As shown in Fig.

A plurality of main fastening holes 108 may be formed along the connecting direction of the main trunk MC1 and MC2, that is, the longitudinal direction of the main hole 113. In this embodiment, two main hole holes 113 Four main fasteners 108 are provided. The main fastener 108 has a polygonal head portion and can be tightened or released using a tool. In this embodiment, a hexagonal-shaped groove is formed in the head portion.

The main block 100 is provided with a bus bar 110. The bus bar 110 is formed of a metal plate having high electrical conductivity and is electrically connected between the main trunk lines MC1 and MC2 and the side block 130. [ The bus bars 110 are mounted on the main block 100 and the two main trunks MC1 and MC2 are connected to the pair of bus bars 110 respectively. Referring to FIG. 5, the left bus bar 110 and the right bus bar 110 are made of separate water, and the two are spaced apart from each other.

As shown in FIG. 4, only a part of the bus bar 110 is exposed to the outside of the main block 100, and the remaining part is shielded by the block cover 103. That is, a portion of the bus bar 110 is exposed upward through a plurality of notches (not shown) formed on the block cover 103. The exposed portion of the bus bar 110 is exposed to the outside of the side block 130, So as to perform an electrical connection function. In this embodiment, two bus bars 110 are formed in two exposed portions.

The bus bar 110 is fixed by a connecting member 112. In FIG. 4, a connecting member 112 having a bolt structure is shown fixed to the bus bar 110. The connection member 112 may be connected to the bus bar 110 to fix the bus bar 110 to the main housing 101. The connection member 112 may be formed by connecting the side block 130 and the bus bar 110 You can also lock between the two. The connecting member 112 is not necessarily limited to a bolt structure, and may be a simple bar type or a connecting terminal. The main block 100 may be in close contact with the side block 130 without the connecting member 112 so that the bus bar 110 and the side block 130 are electrically connected.

The bus bar 110 is bent to correspond to the main passage hole 113 and the main trunks MC1 and MC2 pass through the bent portion of the bus bar 110. [ In this embodiment, a portion of the bus bar 110 is bent in a shape corresponding to the main passage hole 113 and is seated in the main passage hole 113.

3, the main block 100 is shown as being spaced apart from the side blocks 130. As shown in FIG. As shown in the figure, a side block 130 is disposed under the main block 100. The side block 130 is made of a metal having high electrical conductivity, and the exposed portion of the bus bar 110 And are electrically connected to each other. The side block 130 is connected to the bus bar 110 and a plurality of distribution load lines BC and BC 'are connected.

The side blocks 130 are formed as a pair, and the main block 100 is positioned between the pair of side blocks 130. Accordingly, the two bus bars 110 of the main block 100 are in contact with and electrically connected to the respective side blocks 130, respectively. The pair of side blocks 130 are formed with distribution holes (not designated by reference numerals) to which a plurality of distribution load lines BC and BC 'are connected and the distribution load lines BC and BC' May be fixed by a side fastener 138 which is fixed to the side block 130.

The side block 130 is surrounded by the side housing 131. At least a part of the side block 130 is inserted into the side housing 131 and the remaining part 135 is exposed to the outside. 100, respectively. The block housing 101 is an insulating material and prevents the side block 130 from interfering with other conductive parts. In FIG. 3, the pair of side blocks 130 protrude in a direction opposite to each other, and a part thereof is exposed from the side housing 131.

A plurality of distribution load lines BC and BC 'are connected to the side block 130. The distribution load lines BC and BC 'are connected to the side block 130 at one side and connected to the watt-hour meters 30 and 30' at the other ends to transmit external power to the watt-hour meters 30 and 30 ' . The number of the distribution load lines BC and BC 'varies according to the number of the watt-hour meters 30 and 30' and the number of the breakers 50 and 50 '. In FIG. 3, a total of four watt-hour meters 30 and 30' An example in which four distribution load lines BC and BC 'are respectively connected to the pair of side blocks 130 for connection to the main body 100 are shown.

Hereinafter, the assembly and operation of the electric meter box according to the present invention will be described in detail.

At the initial stage of the building installation, external power is not connected to the terminal block assemblies 100 and 130 provided inside the electric meter box, or external power is not branched. Therefore, a separate operation is performed to connect the terminal assemblies 100 and 130.

For reference, the distribution load lines BC and BC 'are installed in the electric meter box according to the present invention. More precisely one end of the distribution load lines BC and BC 'is connected to the distribution holes formed in the side blocks 130 of the terminal block assemblies 100 and 130 and the other ends of the distribution load lines BC and BC' 30 ', respectively. Accordingly, the watt-hour meter 30, 30 'and the terminal block assemblies 100, 130 are electrically connected by the distribution load lines BC, BC'. In this state, after the electric meter box is supplied to a building or the like where the electric meter box is to be installed, main trunks MC1 and MC2 for supplying external power to the electric meter box are connected.

To do so, the operator first removes the terminal assembly 100, 130 located on the back surface of the inner housing 10 from the inner housing 10 after removing the outer casing. More precisely, the main block 100 of the terminal block assemblies 100 and 130 is separated from the inner housing 10. Main trunks MC1 and MC2 are connected to the main block 100 of the terminal block assemblies 100 and 130. For this, a part of the coating of the main trunk MC1 and MC2 is removed, and then the part where the coating is removed is positioned in the main passage hole 113 of the main block 100. [

When the main fastener 108 of the main block 100 is coupled with the main trunk MC1 and MC2 passing through the main passage hole 113, (MC1, MC2) toward the bus bar (110). Thus, the main trunk lines MC1 and MC2 and the bus bar 110 are electrically connected. When the main fastener 108 is tightened by using a tool, the main trunnions MC1 and MC2 are pressed strongly in the direction of the bus bar 110, so that the coupling between the main trunks MC1 and MC2 can be firmly performed.

Next, the combining process of the side block 130 and the main block 100 is continued. The main block 100 is coupled to the side block 130 with the block cover 103 of the main block 100 facing the side block 130. [ More specifically, as shown in FIG. 3, the bus bar 110 of the main block 100 is formed so that a part 135 of the side block 130 protruding outside the side housing 131 can be in close contact with the bus bar 110 And the side block 130 are opposed to each other so that the main block 100 is coupled to the inner housing 10 in the backward direction.

When the main block 100 is brought into close contact with the side block 130 and the main block 100 is assembled to the main housing by inserting the fastening holes 107 into the fastening holes 102 of the main block 100, The block 100 and the side block 130 are strongly adhered to each other. Alternatively, the main block 100 and the side blocks 130 may be directly coupled to each other using the connecting member 112. The connecting member 112 may include an exposed portion 135 of the side block 130, And passes through the exposed portions of the bus bar 110 to assemble them.

Accordingly, the main block 100 and the side blocks 130 are electrically connected to each other. At the same time, since the bus bars 110 of the main block 100 are connected to the main trunk lines MC1 and MC2 and the side blocks 130 are connected to the distribution load lines BC and BC ' (MC1 and MC2) - bus bar 110 - side block 130 - distribution load line BC and BC '- watt hour meter 30 and 30'. Then, the transmitted external power source is measured while passing through the watt-hour meters 30 and 30 ', and is supplied to each space or household in the building via the circuit breakers 50 and 50'.

When the electric meter box according to the present invention is installed, since the terminal block assemblies 100 and 130 are located on the back surface of the inner housing 10, only the electric power meters 30 and 30 'and the breakers 50 and 50' . Therefore, the user or the operator can more easily identify and maintain the watt-hour meter 30, 30 'and the breaker 50, 50' or the amount of usage, and the terminal assembly 100, 130 where the power is branched is not exposed, The possibility of the wires of the power source being separated or damaged is reduced.

The electric meter box of the present invention has the detachable main block 100 installed after the distribution load lines BC and BC 'are connected between the terminal block assemblies 100 and 130 and the electric power meters 30 and 30' And the main block 100 is connected to the inner housing 10 after the main trunk lines MC1 and MC2 are connected to the main trunk line MC1 and MC2. In maintenance, the main block 100 may be removed from the electric meter box, or the side block 130 may be removed from the side housing 131 and then reinstalled.

It should be understood that the present invention is not necessarily limited to these embodiments because all of the elements constituting the embodiment according to the present invention are described as being combined or operated as a single unit. That is, within the scope of the present invention, all of the components may be selectively coupled to one or more of them. Furthermore, the terms "comprises", "comprising", or "having" described above mean that a component can be implanted unless otherwise specifically stated, But should be construed as including other elements. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted to be consistent with the contextual meanings of the related art, and are not to be construed as ideal or overly formal, unless expressly defined in the art.

The description above is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed in this specification are intended to illustrate and not to limit the technical idea of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas which are within the scope of the same should be interpreted as being included in the scope of the present invention.

10: inner housing 30: watt hour meter
50: breaker 100: main block
108: Main fastener 110: Bus bar
130: side block 131: side housing
MC1, MC2: Main trunk BC, BC ': Distribution load line

Claims

An outer casing in which a storage space is formed,
An inner housing installed in the storage space and forming a work space in the rear,
A terminal block assembly installed in a work space of the inner housing and supplying external power to the distributor,
A watt hour meter installed on an outer surface of the inner housing and connected to a distribution load line distributed from the terminal block assembly to measure an amount of electric power,
And at least one circuit breaker connected to a power load line extending from the watt hour meter,
The terminal block assembly
A main block connected to a main trunk for supplying external power,
And a side block which is provided on both sides of the main block and is electrically connected to the main block and to which a plurality of distribution load lines for distributing power of the main trunk to the watt hour meter are connected.

[2] The apparatus of claim 1, wherein a pair of side blocks of the terminal block assembly are fixed to a rear surface of the inner housing, the main block is coupled between the pair of side blocks, And an electric meter connected to the pair of side blocks and electrically connected to the pair of side blocks.

3. The apparatus according to claim 1 or 2, wherein the main block
A block housing having a main passage through which the main trunk passes,
A pair of bus bars installed in the block housing to surround the main passage holes and electrically connected to the main trunk and at least partially exposed to the outside to contact the side blocks,
And a main fastening fastened to the block housing to press the main trunk toward the bus bar.

[5] The apparatus of claim 3, wherein the bus bar is formed to be bent to correspond to the main passage hole, the main line passes through a bent portion of the bus bar, the main fastener protrudes in the main passage hole direction, And an electric meter for pressing the main trunk toward the bus bar.

4. The electric meter according to claim 3, wherein a block cover is coupled to an upper portion of the main block, and a part of the bus bar is exposed upward through a skin formed on the block cover.

4. The apparatus according to claim 3, wherein the pair of side blocks are formed with distribution holes to which a plurality of distribution load lines are connected, and one end of the distribution load line inserted into the distribution holes is fixed to the side blocks by side fasteners Electric meter.

The electric meter according to claim 6, wherein the side block is inserted at least partially into the side housing, and a part of the side block protruded to one side of the side housing contacts the bus bar of the main block.

4. The electric meter according to claim 3, wherein a plurality of main fasteners of the main block are provided along the longitudinal direction of the main passage through which the main trunk passes.