KR20170033720A - Busbar connector having a fork shape and Isolating assembly combined with this connector - Google Patents

Abstract

Disclosed are a fork-shaped connector for a bus bar, and an insulation assembly assembled with the fork-shaped connector. According to the present invention, the fork-shaped connector for a bus bar, which is electrically connected to one side of a bus bar installed inside a cabinet of a distribution board and transmits and receives electricity, comprises: a fork-shaped terminal which includes a pair of fork-shaped members configured such that the one side of the bus bar is inserted into a space between ends of the fork-shaped members so as to be accommodated in the space and configured to face each other, and which transmits and receives electricity to and from the bus bar; an insulation housing which surrounds and insulates an outside of the fork-shaped terminal, in which an opening is formed in a surface of one end of the insulation housing, and in which guide cut recessions configured to guide insertion of the bus bar is formed in the other end of the insulation housing configured to mount and fasten the fork-shaped terminal and configured such that the bus bar is inserted into the other end of the insulation housing; an insulation cover which selectively opens and closes the opening; and elastic parts which are disposed between the fork-shaped terminal and the insulation housing and which elastically support the fork-shaped members in directions so that the fork-shaped members face each other. According to the present invention, one side of the bus bar can be easily inserted and accommodated by using the disclosed structure of the fork-shaped terminal even when the one side of the bus bar is not accurately disposed at a coupling location, a contact surface disposed between the one side of the bus bar and the fork-shaped terminal can be constantly maintained by using elastic force of the elastic parts, and the elastic parts can be prevented from being separated by using the elastic force of the elastic parts, thereby providing convenience of coupling and implementing stable supply of power.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a fork-type connector for a bus bar, and a busbar connector having a fork shape and an isolating assembly combined with the connector,

More particularly, the present invention relates to a fork-type connector for a bus bar and more particularly to an insulated combiner for a bus bar, which can easily be fitted and accommodated without one side of the bus bar being placed at the correct joining position, (3 contact points or 4 contact points) can be easily made, so that the efficiency of power take-out and input can be improved, and a fork-type connector for a bus bar can be provided. Insulating coupling body.

The switchgear is a device that distributes and opens the power supplied from the power plant. It houses the main circuit breaker and monitoring control device in the closed enclosure to prevent the electric shock, so that it can monitor, protect, and operate the power system according to the requirements of the user do. These switchboards vary in the type and size of products according to the rating of the storage equipment, the safety protection class, and the applicable standard.

In the switchboard, a plurality of bus bars are installed to distribute the power supplied from the outside by connecting the respective circuit breakers to each other electrically. In order to reduce the power loss due to the transmission, the bus bars are made of pure copper It is generally manufactured by extrusion molding in a predetermined standard (IEC, JIS, KS).

Properly insulated work is necessary because the surface of the busbar, which is made of pure copper and has excellent electrical conductivity, is left exposed in the air as it presents a high voltage electric shock to workers who repair or inspect the switchboard.

However, in order to prevent the danger of electric shock accident, the insulation work for the installed bus bar should be performed after the power is cut off through the breaker installed in the switchboard. In the case of a large-scale factory equipped with many mechanical devices, There is a problem that an economical loss due to re-operation and a failure of a mechanical device are caused.

Also, in areas that are not adequately insulated, high voltage or unstable power supplied from the transformer may cause strong sparks. At this time, there is a risk that a strong impact is applied to the busbar, resulting in breakage or short-circuiting between busbars.

The connector which is directly connected to the bus bar or disconnected directly is connected to the unit side such as a circuit breaker or a protection relay in the switchboard or the load side through a wire or the like to transfer or release the power supplied from the bus bar .

At this time, the insulation of the connector is equally important since the live wire work, in which the operator directly connects or disconnects the bus bar with a large current (approximately 400A), is a very dangerous operation that can cause sparks.

In addition, the conventional connector which is directly connected to the three-phase three-wire or three-phase four-wire bus bar is an integral type in which the contact terminals of three or four contact points are arranged in parallel so that it is difficult to replace and repair the partial switch, there was.

Further, since the electric wire connection between the connector and the load is made by electric welding or silver welding, there is a problem that the electric wire replacement can not be performed quickly and easily, thereby hindering the operation convenience.

In order to solve the problems of the conventional connector, various connector connecting methods and structures have been proposed. Korean Patent No. 10-1336968 discloses a case in which a circuit breaker and various unit devices are horizontally disposed inside a case, The case can be minimized by disposing a large number of cases on the case, and the circuit breaker is turned on / off by a handle provided on the case front, And a multi-stacked multi-switchgear which can prevent a plurality of switchboards.

Specifically, the vertical terminal block included in the drawer unit for the branch circuit breaker has a structure that performs the same function as the connector directly connected to the branch bus bar and has a four-contact integral structure. The above-described conventional problem is inherently difficult. In addition, there is no adequate means for ensuring a reliable insulation at the point where the busbar is electrically connected to the vertical terminal block (connector).

Korean Registered Patent No. 10-1336968 (Notification date: December 3, 2013)

It is an object of the present invention to provide a fork bar type for a bus bar which can be easily fitted and accommodated even if one side of the bus bar is not located at the correct joining position, and the contact surface between one side of the bus bar and the fork- Connector.

Further, the present invention provides a fork-type connector for a bus bar which can easily increase or decrease the number of contacts (three contacts or four contacts) through rapid assembly when necessary, thereby improving the efficiency of power draw.

The above object is achieved by a connector for electrically connecting with one side of a bus bar provided inside an enclosure of an ASSEMBLY and drawing out and receiving electric power, comprising a pair of fork members facing each other so that one side of the bus bar is inserted A fork-shaped terminal electrically connected to the bus bar; A fork-shaped terminal is fixed in a state where an opening is formed in one surface of one end of the fork-shaped terminal, and a guide incision groove for guiding insertion of the busbar is formed at the other end of the fork- An insulating housing; An insulating lid part for opening and closing the opening part; And an elastic body provided between the fork-shaped terminal and the insulating housing to elastically support the fork-shaped members toward the mutually facing directions.

The fork-shaped terminal includes an insertion space formed by spacing apart the fork-shaped member at a predetermined interval so that one side of the fork-shaped member is inserted into one end of the fork-shaped terminal, A contact terminal having a receiving space formed by being concavely formed in a surface thereof; And a pull-out member having the fork-like member closely coupled to the other end thereof.

Wherein the contact terminal includes at least one cutting hole formed along the bus bar insertion direction at the free end of the contact terminal and a bent portion bent outward at the free end of the contact terminal, At least one fastening hole for screw connection with the insulating housing, and a wire coupling hole adapted to engage with the external lead-out inlet wire.

Wherein the insulating housing includes: a front housing having the contact cutting groove formed therein for receiving the contact terminal therein and having a wider width toward the bus bar; And a rear housing extending from the rear of the front housing and having a seating portion for supporting one side of the outgoing inlet in a state where the opening is formed on one side of the rear housing.

The elastic body includes a fixing protrusion formed in a leaf spring shape and formed at one end to be fitted into a fixing hole formed at one side of the contact terminal; A pressing portion formed at the other end in a shape corresponding to the shape of the bent portion; And an elastic support portion bent toward the inner side surface of the front housing between the fixing protrusion and the pressing portion to elastically support the contact terminal toward the insertion space.

The insulated lid portion is formed with rail grooves on both sides of the side portions along the longitudinal direction, and the rear housing is provided with rails corresponding to the rail grooves along the longitudinal direction, and the insulated lid portion is slid in the longitudinal direction along the rail So that the opening can be opened and closed.

The connection between the insulating cover and the rear housing may be made by at least one hook formed on either side of the insulating lid and the hook fastening hole corresponding to the hook on the other side.

An insulating coupling body formed by coupling a fork-type connector for a bus bar according to any one of claims 1 to 7 and an insulation block used for insulation of a bus bar provided inside a housing of an electric distribution board, A side plate having an opened hole; An outer boundary wall protruding inward from an inner surface of the side plate; An outer engaging portion spaced apart from the outer boundary wall and protruding inward from an inner side surface of the side plate; And an opening / closing door rotatably coupled to the side plate to open / close the opening hole. When the pair of insulating blocks are assembled to face each other, the outer boundary wall is engaged with the outer engaging portion of another insulating block, Characterized in that the bus bar is accommodated and shielded, and at least one fork-shaped connector for the bus bar is inserted into the opening and closing door to electrically communicate with the bus bar of the insulating space Can be achieved.

An inner boundary wall positioned between the outer boundary wall and the outer coupling section and protruding inward from an inner surface of the side plate; And an inner engaging portion located between the outer and inner side walls and protruding inward from an inner side of the side plate, wherein when the pair of insulating blocks are assembled to face each other, And three insulated spaces, each of which is accommodated in each of the three busbars, are coupled to the inner engaging portion of the block.

Wherein the opening hole and the opening and closing door are respectively formed between the outer boundary wall and the inner engaging portion, between the inner engaging portion and the inner boundary wall, between the inner boundary wall and the outer engaging portion, A first door positioned inside the side plate and hinged adjacent to an edge of the opening hole to open and close half of the opening hole; a second door positioned inside the side plate and adjacent to an edge of the opening hole at a side opposite to the first door, A second door that is coupled to open and close half of the opening hole and first and second elastic members that elastically support the first and second doors in a direction in which the first and second doors block the opening hole, .

According to the present invention, even if one side of the bus bar is not positioned at the correct coupling position through the proposed structure of the fork-shaped terminal, it can be easily fitted and accommodated and the contact surface between the one side of the bus bar and the fork- So that it is possible to provide a fork-type connector for a bus bar in which convenience of connection and stable supply of electric power can be provided.

In addition, in order to directly connect the three-phase three-wire or three-phase four-wire busbars, the connectors are individually manufactured by a single contact method instead of the conventional one-piece type connector in which contact terminals of three or four contact points are arranged in parallel. It is possible to provide a fork-type connector for a bus bar which can easily increase and decrease the number of contact points through which electric power can be drawn and extracted.

In addition, the risk of electric shock and electric fire can be solved through the insulating housing completely blocking the outside of the fork-type terminal through which the large current is energized and preventing unintentional contact with the operator and external contact, It is possible to provide a fork-type connector for a bus bar which can quickly and easily be replaced or repaired with an external input / output line while insulating or shielding the fork-type terminal through opening / closing.

Further, it is also possible to form a connector-type insulating coupling body formed by combining a fork-type connector for a bus bar and a door-type insulating block for a busbar, and in a state where the busbar is completely insulated or shielded, various unit units such as a breaker or a protection relay in the switchboard, It is possible to provide a coupled insulated joint capable of performing safer and more efficient live work.

1 is a perspective view of a fork-type connector for a bus bar according to an embodiment of the present invention.
2 is an exploded perspective view of FIG.
FIG. 3 is a cross-sectional view taken along line AA of FIG.
4 is a perspective view of a connector-coupled insulating coupling body formed by coupling the connector and the insulating block of FIG. 1;
5 is an exploded perspective view of Fig.
Fig. 6 is a plan view of a fork-type connector for a bus bar mounted in a draw-in unit used in a power distribution box; Fig.
7 is a front view showing an electric distribution box in which the inlet / outlet unit is installed;
Fig. 8 is a plan sectional view taken along line BB of Fig. 7 after the inlet / outlet unit of Fig. 6 is installed in Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, the well-known functions or constructions are not described in order to simplify the gist of the present invention.

Fig. 1 is a perspective view of a fork-type connector for a bus bar according to an embodiment of the present invention, Fig. 2 is an exploded perspective view of Fig. 1, Fig. 3 is a cross- Fig. 5 is an exploded perspective view of Fig. 4, and Fig. 6 is a plan view of a fork-type connector for a bus bar attached to a draw- 7 is a front view showing the power distribution box in which the draw-out unit is installed, and Fig. 8 is a plan sectional view taken along line BB of Fig. 7 after the draw-in and out unit of Fig. 6 is installed in Fig.

The X, Y, and Z axes shown in the drawings are arbitrarily set for convenience of explanation. The X axis indicates the front (arrow side), the rear (opposing arrow) direction, the Y axis indicates the left and right directions, , And downward direction. In the following description, words indicating respective directions are based on this.

( For booth bar  Fork-type connector)

The fork-type connector 100 for a bus bar according to the present invention is electrically connected to one side of a bus bar B installed inside a wiring line or an electric distribution board 10 branched from a transformer, Connector.

The fork-type connector 100 for a bus bar directly connected to one side of the bus bar B is connected to various unit units such as a breaker or a protective relay in the switchboard 10 or a load side through a wire or the like, And serves to transfer or release power supplied from the bar (B).

In addition, through the structure of the forked terminal 110, the one side of the bus bar B can be easily fitted and accommodated without being positioned at the correct coupling position, and the elastic force of the elastic body 140 can be transmitted to one side of the bus bar B Since the contact surface between the fork-type terminals 110 can be maintained constant, the convenience of connection and the stable supply of electric power can be achieved.

The conventional connector is an integral connector in which contact terminals of three or four contact points are arranged in parallel for direct connection with a three-phase three-wire or three-phase four-wire bus bar (B) However, since the fork-type connector 100 for a bus bar according to the present invention is individually manufactured in a one-contact manner, the number of contacts can be easily increased or decreased through rapid assembly if necessary, Can be improved.

In addition, the risk of electric shock and electric fire can be solved through the insulating housing 120, which completely surrounds the outside of the fork-type terminal 110 through which the large current is energized, thereby preventing unintentional contact with the operator and contact with the outside And the external I / O cable 20 can be quickly and easily replaced or repaired while insulating or shielding the fork-type terminal 100 through the easy opening and closing of the insulating cover 130. [ This can greatly enhance the convenience of live wire operations and the like.

Although the fork-type connector 100 for a bus bar according to the present invention can be used as it is, the connector block 100 is assembled with a plurality of insulating blocks 200 to be described later, So that the bus bar B is insulated or shielded.

The bus bar B in the description of the present invention is a conductor similar to a pure copper material used in the cabinet 10 and can be connected to the connector 100 as long as the cross- It is also acceptable.

The fork-type connector 100 for a bus bar according to the present invention includes the fork-type terminal 110, the insulating housing 120, the insulating cover 130, the elastic body 140, and the like .

A detailed description of each of the above-described configurations is as follows.

The fork-type terminal 110 is electrically connected to the bus bar B through which a large current flows. The fork-type terminal 110 is connected to various unit units such as a breaker or a protective relay in the switchboard 10, The power is transmitted or released from the power supply side.

The fork-shaped terminals 110 are formed in such a manner that a pair of fork-like members 211 having a curved one end and a flat end of the other end face each other, and one side of the busbars B is formed as a curved fork- And is structured such that it can be inserted into the one end portion and accommodated therein.

The fork-type terminal 110 may be any material that can be energized, but is preferably made of pure copper having a very high electrical conductivity as the bus bar B for smooth energization with the bus bar (B) .

At this time, the fork-type terminal 110 is manufactured in such a manner that the width and thickness of the fork-shaped terminal 110 are varied in the lateral direction (Y-axis direction) in accordance with the current capacity to be handled, The utilization can be increased.

That is, the fork-type terminal 110 which handles a large capacity current has a large width and a large thickness, so that smooth power supply can be achieved. In the case of a small capacity current, the width and thickness can be made small.

However, in the embodiment of the present invention, the width and thickness of the fork-type terminal 110, which handles a current capacity of 400 A, are formed to be approximately 3 cm and 3 mm. In the case of the current capacity of 150 A, 1.5 cm and 3 m, respectively. At this time, the insulating housing 120 and the insulating lid 130, which will be described later, are also deformed to a size corresponding to the size of the fork type terminal 110.

As described above, through the fork-shaped terminals 110 of the individualized standard, the power supply is appropriately and smoothly performed at the appropriate place, and the space utilization in the switchboard 10 is increased.

The fork type terminal 110 according to the embodiment of the present invention includes a bent contact terminal 112 formed at one end and a flat plate shaped outgoing input terminal 113 formed at the other end.

At this time, the contact terminal 112 includes an insertion space S2 in which the fork members 111A and 111B are spaced apart from each other by a predetermined distance so as to insert one side of the bus bar B, (S3) in which fork members (111A, 111B) are concavely formed outside (the direction in which the fork members face each other) so that one side of the fork member (B) is received.

The width of the insertion space S2 is set to be slightly larger than the thickness of the bus bar B so that a certain level of contact force by the contact terminal 112 can be applied to the surface of the bus bar B to be inserted. It is necessary to form it small. This is to ensure uniform and stable energization between the contact terminal 112 and the bus bar B.

The width of the accommodating space S3 is formed to be slightly larger than the thickness of the bus bar B so that the movement of the bus bar B is not blocked by the contact terminal 112 deformed while the bus bar B is fitted . This is because if the width of the accommodation space S3 is formed to be equal to or smaller than the thickness of the bus bar B, the movement of the bus bar B toward the accommodation space S3 is not smooth.

2 and 3, the contact terminal 112 according to the embodiment of the present invention includes at least one cut-out hole 112A formed along the inserting direction of the bus bar B at the free end thereof, And a bent portion 112B that is bent outward at a free end of the contact terminal 112 (in a direction in which the forked members face each other).

The cutout hole 112A is a structure for increasing the surface area in which the contact terminal 112 and the air are in contact with each other. The cutout hole 112A is provided for smoothly dissipating heat generated when the high current is conducted to the contact terminal 112, Even if the surface shape of the bus bar B is somewhat irregular, the bending portion 112B is deformed differentially along the cut-off hole 112A in order to maintain a constant contact force therebetween.

For reference, the relation between the resistance and the temperature of the bus bar B and the contact terminal 112 to be energized increases as the temperature increases. In general metal, the resistance value increases in proportion to the temperature.

This can be expressed as follows. R (increased resistance) = Ro (1 + aT), where a is a constant that varies with the type of metal. Therefore, heat dissipation is essential for smooth power supply.

The bent portion 112B guides the insertion direction of the bus bar B so that the one side of the bus bar B or the fork connector 100 for the bus bar can be easily fitted into the contact terminal 112 even if the fork- It is a structure designed to perform the role of

One side of the bus bar B and the fork-type connector 100 for the bus bar can be easily coupled through the cut-out hole 112A and the bent portion 112B, and the uniform contact force between the bus bar B and the fork- Lt; / RTI >

The outgoing input terminal 113 is a component located behind the contact terminal 112 which is energized with one side of the bus bar B and is fixed to one end of the external input / output electric wire 20, Like flat members 111A and 111B are tightly coupled to each other.

Various unit units such as a breaker or a protective relay in the switchboard 10 connected to the other end of the external input / output line 20 through the outgoing input / output terminal 113 having one end of the external input / output line 20 fixed thereto, So that power can be drawn out from the bar (B).

As shown in FIGS. 2 and 3, the outgoing feeder 113 according to the embodiment of the present invention includes at least one fastening hole 113A for screw connection with an insulating housing 120 to be described later, And an electric wire coupling hole 113B provided to engage with the extraction electric wire 20.

At this time, it is preferable that the fastening holes 113A through which the bolts pass through are formed symmetrically so that the withdrawing fastener 113 is bolted to the insulating housing 120 with a uniform force, It is needless to say that the number of the feed outlets 113 can be appropriately increased or decreased to a level proportional to the size of the outgoing feeder 113,

The wire coupling hole 113B through which the bolt penetrates is formed in the central region of the outgoing input 113 and the wire bracket 20A and the outgoing input end 113 provided at the end of the external input and output electric wire 20 are bolted together .

In this case, the bolt-nut coupling method between the external drawing input / output line 20 and the forked type terminal 110 improves the coupling method which was difficult to repair or replace like the conventional electric welding or silver welding, It is possible to facilitate the work in the switchboard 10.

Moreover, the insulation cover 130 can be easily opened and closed, and the insulation or shielding of the outgoing feeder 113 can be selectively and quickly exchanged or repaired with ease.

The insulating housing 120 is a component for insulating the fork-type terminal 110 in such a manner as to surround the outer periphery of the fork-type terminal 110. The fork-type terminal 110 is formed in a state in which the opening S1 is formed on one surface of the one end. And a guide cutout groove 124 for guiding the insertion of the bus bar B is formed at the other end where the bus bar B is inserted.

The insulating housing 120 may be made of a synthetic resin having excellent insulation, heat resistance, and rigidity, and an engineering plastic. The insulating housing 120 may be made of polytetrafluoroethylene (PTFE), polychlorotrifluoroethylene (PCTFE), polyvinylidene Polyvinylidene Fluoride (PVDF), Poly Phenylene Sulfide (PPS), Polyether ether ketone (PEEK), Mono Cast Nylon (MC), Polyacetal (POM) , Polyamide, and the like, are preferably injected and manufactured integrally.

The insulating housing 120 according to an embodiment of the present invention includes a front housing 122, a rear housing 123, a guide cutout groove 124, a seating portion 125, and the like.

The front housing 122 is a component for receiving and inserting the contact terminal 112 therein. The front housing 122 has a guide cutout groove 124 that widens toward the bus bar B side. At this time, the end portion of the front housing 122 may be formed so as to be narrowed toward the bus bar B side so as to be easily inserted into the opening / closing door 280 of the insulating block 200 to be described later.

The rear housing 123 is a component extending from the rear of the front housing 122 to pass through the forked terminal 110 and to insulate one side of the inlet and outlet terminal 113. An opening S1 is formed on one surface of the rear housing 123 A seat part 125 for supporting one side of the input / output terminal 113 is provided.

In this case, the opening S1 is formed in such a manner that the above-mentioned input / output terminal 113 is easily exposed to the outside, so that it is possible to easily replace or repair the external input / output electric wire 20, Any structure or form can be used so long as it can slide and move easily.

The seating part 125 is a component that firmly seats the input / output terminal 113 so as to prevent the input / output terminal 113 from being shaken in one direction, and has a structure corresponding to one surface of the input / output terminal 113 as shown in FIG. do.

The connection between the insulative housing 120 and the forked terminal 110 according to the embodiment of the present invention is such that the outgoing inlet 113 of the forked terminal 110 is inserted into the front housing 122, Through the slit hole (126A) formed in the seat (125), and then the outgoing inlet (113) is supported by the seat (125).

At this time, the blocking wall 126 is provided between the front housing 122 and the rear housing 123 to isolate or shield the contact terminal 112 from the outgoing inlet 113, It is possible to prevent breakage or the like of each component.

An extended fixing portion 129 may be further formed between the front housing 122 and the rear housing 123 so as to extend outward and include an extended fixing hole 129A at the center thereof. This is for fixing the connector 100 according to the present invention with a bolt or the like to the rear surface of the lead-in and-out unit 30 (unit unit of the switchboard, see Fig.

The insulating cover 130 has a structure for opening and closing the opening S1 of the insulating housing 120. When the opening and closing of the insulating housing 120 is opened, And facilitates repairing. In the closed state, it is a component that insulates or shields the lead-out voltage terminal 113 from the outside.

In order to smoothly open and close the opening S1 smoothly, the insulating lid 130 is formed with rail grooves 132 on both sides of the side portions along the longitudinal direction thereof. At this time, the rear housing 123 is provided with a rail 127 corresponding to the rail groove 132 along the longitudinal direction thereof.

The insulating lid 130 is slid forward (X-axis arrow direction) from the rear by the rail groove 132 and the rail 127 and is engaged with the rear housing 123, Respectively.

At least one hook 134A is provided on either side of the insulating lid 130 and the rear housing 123 to provide a firm and quick coupling and separation between the insulating lid 130 and the rear housing 123. On the other side, A hooking hole 134B is provided.

The hook 134A according to the embodiment of the present invention is formed with one front side of the insulating lid 130 and two rear side symmetrical to each other, 123. Thus, the insulating cover 130 can not be easily detached from the rear housing 123 even in the case of a right and left torsional shock through the hook 134A and the hooking hole 134B formed at both ends in a three-point coupling structure.

Of course, the number of the hooks 134A and the number of the hooking holes 134B to be coupled therewith is only one example, and can be appropriately changed if necessary. However, in order to facilitate assembly and separation, It is preferable to set the formation position to be symmetrical.

The elastic member 140 is provided between the forked terminal 110 and the insulating housing 120 (specifically, the front housing 122) so as to elastically support the forked members 111A and 111B toward each other, to be.

The elastic body 140 according to the embodiment of the present invention is formed in the form of a leaf spring, and the elastic body 140 is provided at one end of the elastic body 140, A pressing portion 144 is formed at the other end of the elastic body 140 so as to correspond to the shape of the bent portion 112B, . The elastic supporting portion 146 is formed between the fixing protrusion 142 and the pressing portion 144 so as to elastically support the contact terminal 112 toward the insertion space S2 toward the inner side surface of the front housing 122.

At this time, due to the shape of the fixing protrusion 142 and the pressing portion 144 fitted to the fixing hole 116, the elastic body 140 is not easily released to the outside even when it is subjected to an impact such as a spark generated in the contact terminal 112.

The elastic body 140 can exert a uniform and stable elastic supporting force through the elastic supporting portion 146 which is in contact with the inner side surface of the front housing 122. The elastic body 140 is located outside the inner space of the front housing 122 So that the forked terminal 110 with the elastic body 140 interposed therebetween is easily fitted into the front housing 122 and assembled.

As a result, the elastic body 140 composed of the above-described structure, that is, the elastic body 140 formed by the organic bonding of the fixing protrusions 142, the pressing portions 144 and the elastic supporting portions 146 is prevented from being separated from the elastic body 140, Shaped terminal 110 and the front housing 122 without interfering with the assembly of the fork-type terminal 110 and the front housing 122 even in a state where the elastic support force is applied to the fixing hole 116 of the contact terminal 112. [

(Connector-coupled insulator)

As shown in Figs. 4 to 8, the above-described fork-type connector 100 for a bus bar according to the present invention and the bus bar B provided inside the housing 11 of the switchboard 10 And the connection with the insulating block 200 results in the connector-joined insulating coupling body 300.

Although the fork-type connector 100 for a bus bar as described above can be used as it is, the connector 100 can be integrally assembled with a plurality of insulating blocks 200 to be described later, (B) from the bus bar (B), thereby allowing the electric power to be safely drawn in and out from the bus bar (B).

An insulating block 200 (hereinafter referred to as a door-type insulating block for a bus bar) to be assembled with the fork-type connector 100 for a bus bar according to the present invention will now be described.

The door type insulating block 200 for a bus bar according to the present invention can be used for insulation of a bus bar provided inside a housing 11 such as a motor control board (MCC) or an electric distribution board 10, And is constructed so as to completely enclose the bus bar B as an insulator so as to exclude the possibility of the contact of the bus bar B by a user and the possibility of a short circuit. That is, it is possible to prevent unintentional contact of the user and contact with the outside, thereby eliminating the risk of electric shock and electric fire.

In addition, the door-type insulating block 200 for a bus bar according to the present invention can easily couple with the fork-type connector 100 for a bus bar which is electrically connected to the bus bar B while effectively shielding the bus bar B And the fork-type connector 100 for the bus bar are coupled to each other.

However, the door-type insulating block 200 for a bus bar according to the present invention is not made so that the bus bar B itself is completely surrounded by the door-shaped insulating block 200 for a bus bar, And then assembled together to form a finished insulation block assembly.

The enclosure 11 described in the present invention refers to a box-shaped body constituting the switchboard 10 and the like. The enclosure 11 can be divided into an enclosure forming the outside and an enclosure provided inside the enclosure.

The door-type insulating block 200 for a bus bar according to the present invention is assembled such that a pair of them face each other (rotationally symmetrical with respect to a vertical axis) to form one insulating block assembly, Thereby forming a completed insulating block assembly. However, the door-type insulating block 200 (shape having the opening hole 211) for the busbar explained in the present invention does not necessarily have to be assembled with each other, but the door-type insulating block 200 for a busbar according to the present invention The opening hole 211 and the opening / closing door 280) may be assembled together with the insulating block 200a of the excluded type.

The shape in which the opening hole 211 and the opening and closing door 280 are provided is referred to as a door type insulating block 200 for a bus bar and the shape in which the opening hole 211 is not provided is referred to as a ' Is referred to as an insulating block 200a for a bar, and a case including all of them is referred to as an insulating block 200, 200a.

On the other hand, an insulating space S is formed inside the door-shaped insulating block 200 for a pair of busbars, and each of the busbars B is accommodated on the insulating space S.

The number and arrangement of the insulating blocks 200 and 200a may vary depending on the size of the switchboard 10 to be applied and the arrangement of the busbars B and the various sizes and shapes of the switchboards 10 The assembled shape can be made in conformity with the above.

To this end, the door-type insulating block 200 for a bus bar according to the present invention includes a side plate 210, an outer boundary wall 220, an outer coupling portion 230, and an opening and closing door 280. And may further include an inner boundary wall 240 and an inner coupling portion 250.

As described above, the door-type insulating block 200 for a bus bar according to the present invention may be installed in various positions and orientations in accordance with the arrangement direction of the bus bars B installed in the switchboard 10, For convenience, the direction will be described with reference to a state in which the side of the side plate 210, which will be described later, is positioned parallel to the vertical direction (a state in which the longitudinal direction of the bus bar B faces the vertical direction).

In the door-type insulating block 200 for a booth bar according to the present invention, the side plate 210, the outer boundary wall 220, the outer coupling portion 230, the inner boundary wall 240 and the inner coupling portion 250 are formed separately from each other But it is preferable that they are integrally formed with each other, and it is preferable that they are formed by injection molding.

The door-type insulating block 200 for a bus bar may be made of synthetic resin having insulation, engineering plastic, or the like, and may be made of various materials having excellent heat resistance and rigidity. For this purpose, the door-type insulating block 200 for a bus bar may be formed of at least one of polytetrafluoroethylene (PTFE), polychlorotrifluoroethylene (PCTFE), polyvinylidene fluoride (PVDF), polyphenylene A polyether ether ketone, a mono cast nylon, a polyacetal (POM), a polyoxymethylene (POM), a polyamide, or the like.

The side plates 210 are formed as a flat plate as a whole and are preferably formed in the shape of a rectangular plate for easy assembly of the insulating blocks 200 and 200a. The length (lateral length) of the side plate 210 may be varied depending on the mounting configuration of the bus bar B and the distance between the phases of the bus bars B by voltage defined by the Korea Electric Industrial Cooperative Association Length.

That is, the side plate 210 according to the embodiment of the present invention is formed into a plate shape having a length (left and right length) of at least 19.5 cm on the basis of three-phase three lines in consideration of the distance between phases when the nominal voltage is 6600 V , And a length of at least 26 cm (left and right length) in case of 3-phase 4-wire.

The side plates 210 can be manufactured by subdividing the height of the bus bars B so that proper insulation work can be smoothly performed through vertical assembly of the bus bars B exposed in various lengths.

That is, as an example, the height of each side plate 210 can be selectively set in a range of 10 cm to 20 cm. However, the embodiment according to the present invention can ensure the convenience and efficiency of assembling work and the stability in the assembled state, and can smoothly form the branching point of the bus bar B. The opening hole 211, It is preferable to have a height of 10 cm to 15 cm for easy connection of the connector through the connector.

In addition, the thickness of the side plate 210 is made to be a thickness proportional to the magnitude of the large current flowing in the bus bar B, thereby securing the insulating property. However, the embodiment of the present invention forms the side plate 210 with a thickness of about 10T (10 mm).

The side plate 210 is provided with an opening hole 211.

The opening hole 211 is formed to penetrate through the side plate 210. The opening shape may be circular, polygonal, or the like, but is preferably formed in a rectangular shape. The edges of the opening hole 211 Are preferably parallel to the respective edges of the side plates 210. [

The horizontal width and the vertical height of the insulating space S formed by the door type insulating block 200 for a pair of bus bars are 57 mm * 100 mm, the width of the opening hole 211 in the horizontal direction, The height is preferably 42 mm * 46 mm.

On both sides of the side plate 210, coupling plates 212 extending outwardly can be formed, and fastening holes 112a through which fastening means such as bolts can pass can be formed. The door-type insulating block 200 for a busbar according to the present invention is connected to the wiring board via a coupling plate 212. The busbar 200 is mounted on one side of the wiring line, specifically, inside the cabinet 10 As shown in Fig. The height and thickness of the coupling plate 212 are preferably equal to the height and thickness of the side plate 210.

A reinforcing portion protruding in a concavo-convex form may be formed on the surface of the side plate 210 to increase the bending or twisting strength of the side plate 210.

The outer boundary wall 220 is formed to protrude inward from the inner surface of the side plate 210. The side on which the outer side wall 220 is formed in the side plate 210 is defined as the inner side of the side plate 210 (and the door type insulating block 200 for the bus bar), and the opposite side is defined by the side plate 210 (For example, the door-type insulating block 200 for a bar).

The outer boundary wall 220 may be formed in the form of a flat plate as a whole and is preferably formed in the shape of a rectangular plate for the convenience of assembly. The plane formed by the outer boundary wall 220 is orthogonal to the plane formed by the side plate 210 desirable. The upper and lower edges of the outer boundary wall 220 are aligned with the upper and lower edges of the side plate 210, respectively.

The thickness of the outer boundary wall 220 is set to a thickness proportional to the magnitude of the large current flowing through the bus bar B, thereby ensuring insulation. In the embodiment of the present invention, the thickness is approximately 10T (10 mm) And the thickness of the inner coupling part 230 and the inner coupling part 250 may be the same as the thickness of the outer boundary wall 220. [

The outer engaging portion 230 is spaced apart from the outer boundary wall 220 and is formed to protrude inwardly from the inner side surface of the side plate 210.

The outer coupling portion 230 may be formed in a flat plate shape and may be formed in the shape of a rectangular plate for the convenience of assembly. The outer coupling portion 230 may have a surface Is preferably orthogonal to the plane formed by the side plate 210. The upper and lower edges of the outer coupling portion 230 are aligned with the upper and lower edges of the side plate 210, respectively.

The length of the outer coupling portion 230 (the length from the side plate 210 to the end of the outer coupling portion 230) is determined by the length of the outer boundary wall 220 (the length from the side plate 210 to the end of the outer boundary wall 220) It is preferable that the outer joint part 230 is made as short as possible within a range in which the first fitting groove 121 to be described later can be formed.

The door-type insulating block 200 for a bus bar according to the present invention may include a side plate 210, an outer boundary wall 220, an outer joint portion 230, and an inner side wall portion 240 without an inner boundary wall 240 and an inner side coupling portion 250. [ And an opening and closing door 280. At this time, the door-type insulating block 200 for a bus bar is formed to surround only one bus bar B. That is, one insulating space S may be provided when the door-shaped insulating block 200 for a pair of busbars is assembled facing each other.

However, since the busbars B of a plurality of (three-phase three-wire or three-phase four-wire) busbars B are provided together in consideration of the characteristics of the MCC, It is preferable that the insulation block 250 is formed to include three insulation spaces S when the pair of insulation blocks are assembled facing each other.

The inner side wall 240 protrudes inward from the inner side surface of the side plate 210. The inner boundary wall 240 is located between the outer boundary wall 220 and the outer coupling section 230 while the inner boundary wall 240 is formed near the outer coupling section 230.

The inner boundary wall 240 may be formed as a flat plate as a whole and is preferably formed in the shape of a rectangular plate for the convenience of assembly. The inner boundary wall 240 may be formed so that the plane formed by the inner boundary wall 240 is orthogonal to the plane formed by the side plate 210 desirable. The upper and lower edges of the inner side wall 240 are aligned with the upper and lower edges of the side plate 210, respectively.

The inner boundary wall 240 may have the same shape and size as the outer boundary wall 220.

The inner coupling portion 250 is spaced apart from the inner boundary wall 240 and protrudes inward from the inner surface of the side plate 210 and is located between the outer boundary wall 220 and the inner boundary wall 240.

In the door-type insulating block 200 for a bus bar according to the present invention, the intervals of the outer boundary wall 220, the inner coupling portion 250, the inner boundary wall 240, and the outer coupling portion 230 are preferably the same .

The inner engaging part 250 may be formed in a flat plate shape and may be formed in a rectangular plate shape for the convenience of assembly. The inner engaging part 250 may have a surface (a direction in which the inner engaging part 250 protrudes Is preferably orthogonal to the plane formed by the side plate 210. The upper and lower edges of the inner coupling portion 250 are aligned with the upper and lower edges of the side plate 210, respectively.

The length of the inner coupling portion 250 (the length from the side plate 210 to the inner coupling portion 250) is determined by the length of the inner side wall 240 (the length from the side plate 210 to the end of the inner side wall 240) But it is preferable that the inner engaging part 250 is made as short as possible within a range in which the second fitting groove 241 to be described later can be formed.

The inner coupling portion 250 may have the same shape and size as the outer coupling portion 230.

The above-described opening hole 211 is formed between the outer boundary wall 220 and the inner coupling portion 250, between the inner coupling portion 250 and the inner boundary wall 240, between the inner boundary wall 240 and the outer coupling portion 230, And the opening and closing door 280 is configured to open and close the opening hole 211, respectively.

The opening and closing door 280 is formed in a shape corresponding to the opening hole 211. When the opening hole 211 is formed in a rectangular shape, the opening and closing door 280 is also preferably formed in a rectangular shape, It is a matter of course that each corner is parallel to each corner of the opening hole 211.

The opening and closing door 280 is rotatably coupled to the side plate 210 and is hinged at the inner side of the side plate 210 and is directed inward on the outer side surface of the side plate 210 ) Toward the inside to open the opening hole 211. As shown in Fig.

At this time, it is preferable that the opening / closing door 280 is slightly larger than the opening hole 211, so that the opening / closing door 280 is prevented from deviating to the outside of the opening hole 211.

In the door-type insulating block 200 for a bus bar according to the present invention, the opening and closing door 280 is preferably divided into a first door 180a and a second door 280b.

The first door 280a is hinged adjacent to the edge of the opening hole 211 to open and close half of the opening hole 211. [

The second door 180b is hinged adjacent to the edge of the opening hole 211 on the opposite side of the first door 280a to open and close half of the opening hole 211 as well.

When the first door 280a and the second door 280b are closed, the respective ends of the first door 280a and the second door 280b come into close contact with each other or come very close to each other. And the boundary of the second door 280b crosses the center of the opening hole 211. [

The opening and closing door 280 is divided into the first door 280a and the second door 280b so that the end portion of the fork connector 100 for the bus bar (the contact terminal 112 side) 280a and the second door 280b to easily enter the insulating space S and the fork-type connector 100 for the bus bar can be easily brought into contact with the bus bar B .

The first door 280a and the second door 280b are preferably parallel to each other so that the rotation axis of the first door 280a and the second door 280b are parallel to the surface of the partition wall. As shown in Fig.

The first elastic body 281 and the first elastic body 181 are formed so that the first door 280a covers the opening hole 211, And the second elastic body 282 resiliently supports the second door 280b in a direction in which the second door 280b shields the opening hole 211 .

The first and second elastic bodies 281 and 282 may have the same shape as a conventional coil spring and may be coupled to the rotating shafts of the first door 280a and the second door 280b, The first door 280a and the second door 280b are brought into close contact with the inner surface of the side plate 210 so that the state in which the opening hole 211 is shielded can be maintained . The first and second elastic members 281 and 282 are connected to the first door 280a and the second door 280b in a state where an external force for opening the first door 280a and the second door 280b is removed, Can be rotated in the direction of shielding the opening hole 211 to block the exposure of the bus bar B through the opening hole 211.

When the door-type insulating block 200 for a bus bar according to the present invention is provided as a pair and then assembled to face each other to form an insulating block assembly, The outer boundary wall 220 is coupled to the outer coupling portion 230 of the other insulation block 200 and 200a while the inner boundary wall 240 is coupled to the other insulation block 200 and 200a, Is coupled to the inner coupling portion 250 of the block 200, 200a. That is, the outer boundary wall 220, the inner coupling portion 250, the inner boundary wall 240, and the outer coupling portion 230 provided in any one of the door- The inner joint part 230, the inner joint part 250 and the outer joint part 220 of the insulating block 200 are connected to each other to form four partitions.

In the present invention, the outer side wall 220 and the outer side coupling portion 230 are coupled to each other, and the inner side wall 240 is coupled to the inner side coupling portion 250 to be referred to as an inner side wall.

When the pair of insulating blocks 200 and 200a are assembled to face each other, two outer side walls 220 and 230 and two inner side walls 240 and 250 are provided, and both the outer side wall and the inner side wall have partition walls And each of the partition walls has the same size and shape.

When the door-shaped insulating block 200 for a bus bar according to the present invention is assembled to form an insulating block assembly, the barrier ribs are disposed between a plurality of the busbars B arranged side by side and the busbars B outside So that insulation between phases is achieved.

The plurality of bus bars B are isolated and accommodated in the insulating block assembly 200 as the partition walls form the insulating space S together with the side plates 210. As each of the bus bars B is isolated and accommodated, a strong spark between the adjacent bus bars B due to the unstable power supply can be prevented, and a strong shock to the bus bar B Breakage and short-circuiting between the bus bars B can be prevented.

The barrier ribs according to the present invention are basically formed at predetermined intervals along the longitudinal direction of the side plate 210. The spacing between the barrier ribs at this time is determined by the installation mode of the bus bar B and the voltage- May be formed at various intervals in accordance with the distance between the bars (B).

For example, in the case where the three-phase three-wire type bus bars B are installed at intervals of 65 mm, four partitions are formed at 65 mm intervals so as to isolate and accommodate the bus bars B, 5, the partition walls are formed at intervals of 65 mm so as to isolate and accommodate the busbars B, respectively. In the latter case (three-phase four-wire type), a separate member forming a partition wall is further provided between the inner side wall 240 and the inner side coupling portion 250.

The length of the outer coupling portion 230 (the length from the side plate 210 to the end of the outer coupling portion 230) of the door-shaped insulation block 200 for a busbar according to the present invention is smaller than the length of the outer boundary wall 220 (The length from the side plate 210 to the end of the inner boundary portion 220) of the inner coupling portion 250 is shorter than the length of the inner coupling portion 250 Length is shorter than the length of the inner boundary wall 240 (the length from the side plate 210 to the end of the inner boundary wall 240).

As a result, when the door-shaped insulating blocks 200 for a pair of busbars are assembled to face each other, the assembled positions of the respective partition walls form a zigzag shape, so that even if a strong torsional stress or shear stress acts, The assembly 200 is not easily detached.

One of the ends of the outer side wall 220 and the outer side coupling part 230 may be provided with a first protrusion 224 protruding in a direction away from the side plate 210, And a first fitting groove 221 having a concave shape corresponding to the first fitting protrusion 231 is formed in the other.

That is, the first fitting protrusions 231 provided in any one of the door-shaped insulating blocks 200 for busbars are inserted into the first fitting grooves 221 provided in the door-shaped insulating block 200 for the other busbar do. It is preferable that the first fitting protrusion 231 is fitted in the first fitting groove 221 and that the first fitting protrusion 231 is fitted into the first fitting groove 221, Does not mean only that the external shape of the protrusion 231 is physically completely matched but means that the clearance is minimized to the extent that frictional force is generated at the contact surfaces of both sides and the external force is not easily exerted.

In the door-type insulating block 200 for a bus bar according to the present invention, a first fitting groove 221 is formed on an outer boundary wall 220 and a first fitting protrusion 231 is formed on an outer fitting portion 230 The coupling point between the outer side wall 220 and the outer side coupling part 230 can be positioned closer to the side plate 210 and the first fitting protrusion 231 and the first fitting groove 221 It is possible to prevent the occurrence of a relatively large clearance at the coupling point of the magnetic disk.

The inner side wall 240 and the inner side coupling part 250 are formed with a first side wall 210 and a second side wall 210. The inner side wall 240 and the inner side coupling part 250 may be coupled to each other, And a second fitting groove 241 having a concave shape corresponding to the second fitting protrusion 251 is formed in the other of the fitting protrusions 251.

That is, the second fitting protrusions 251 provided in any one of the door-shaped insulating blocks 200 for busbars are inserted into the second fitting grooves 241 provided in the door-shaped insulating block 200 for the other busbar do. Also, the second fitting protrusion 251 is preferably fitted in the second fitting groove 241.

In the door-type insulating block 200 for a bus bar according to the present invention, a second fitting groove 241 is formed on the inner side wall 240, a second fitting protrusion 251 is formed on the inner fitting portion 250, The coupling point between the inner boundary wall 240 and the inner coupling part 250 can be positioned closer to the side plate 210 and the second fitting protrusion 251 and the second fitting groove 250 It is possible to prevent a relatively large clearance from occurring at the coupling point of the first and second clutches 241 and 241.

It is preferable that each of the first fitting groove 221 and the second fitting groove 241 is formed such that one of the upper and lower ends 221a and 241a is open and the other of the upper and lower ends is shielded The sides 221a and 241a on which the upper and lower coupling grooves 270 are formed and the sides 221b and 241b on which the upper and lower coupling protrusions 260 are formed are preferably shielded.

Accordingly, when the door-shaped insulating blocks 200 for a pair of busbars are assembled to each other, the first fitting protrusions 231 can be inserted into the first fitting groove 221 in a sliding manner, The door-shaped insulating block 200 for a pair of busbars can be inserted into the second fitting groove 241 in a sliding manner from one side of the second fitting groove 241, Directional movement can be prevented from each other and stable coupling can be achieved.

If the first and second fitting grooves 221 and 241 are both shielded at the upper and lower ends of the first fitting protrusion 231, Since the second fitting protrusions 251 must be inserted only in one direction and the second fitting protrusions 251 should be inserted only in the horizontal direction in the second fitting groove 241, a considerable concentration is required for assembly and it is difficult to assemble and inconvenience to the operator In consideration of this problem, the present invention allows easy and stable assembly between the door-type insulating blocks 200 for a bus bar.

In the door-type insulating block 200 for a bus bar according to the present invention, the upper and lower coupling protrusions 260 and the upper and lower coupling grooves 270 are provided for the laminated coupling of the door-type insulation block 200 for a bus bar.

The upper and lower coupling protrusions 260 protrude from upper edges of the side plate 210, the outer boundary wall 220, the outer coupling portion 230, the inner boundary wall 240 and the inner coupling portion 250, 270 are formed in a shape corresponding to the upper and lower coupling protrusions 260 at the lower edges of the side plate 210, the outer boundary wall 220, the outer coupling portion 230, the inner boundary wall 240 and the inner coupling portion 250, .

When the two insulating blocks 200 and 200a are assembled to each other in the vertical direction along the longitudinal direction of the bus bar B, the upper and lower coupling protrusions 260 are inserted into the upper and lower coupling grooves 270 of the other insulation block So that stable coupling of the door-type insulating block 200 for the bus bar stacked up and down can be achieved.

The upper and lower coupling protrusions 260 are divided into a plurality of portions along the upper edge of the side plate 210, the outer boundary wall 220, the outer coupling portion 230, the inner boundary wall 240 and the inner coupling portion 250, The inner side wall 240 and the inner side coupling part 250 may be integrally connected to each other at a point where the side plate 210, the outer side wall 220, the outer side coupling part 230, the inner side wall 240 and the inner side coupling part 250 are connected to each other. .

The upper and lower coupling grooves 270 may also be divided into a plurality of portions along the bottom edges of the side plate 210, the outer boundary wall 220, the outer coupling portion 230, the inner boundary wall 240, and the inner coupling portion 250 However, it is preferable that the side plate 210, the outer boundary wall 220, the outer coupling portion 230, the inner boundary wall 240, and the inner coupling portion 250 are integrally connected without being disconnected at the points where they are connected to each other .

6 is a plan view of a fork-type connector 100 for a bus bar mounted on a draw-in unit 30 inserted in the cabinet 10. In order to be applied to the three-phase three-line bus bar B, The fork-type connector 100 has a structure in which a portion of the contact terminal 112 protrudes outward in the lateral direction. Also, the fork-type connector 100 for the three right-side busbars has a structure in which the contact terminal portion 112 protrudes outward in the longitudinal direction and is coupled with the unit unit.

This drawing-out unit 30 is inserted into the drawing-out unit engaging space L where the insulating block 200 of the cabinet 10 shown in FIG. 7 is located.

8 is a plan sectional view after the drawing-out unit 30 is inserted into the drawing-out unit engaging space L of Fig. 7. The drawing shows a T-shaped booth fixed inside the insulating block 200 located at the center of the distributing box 10, One side of the bar B is fastened and electrically connected to the contact terminal 112 of the fork-type connector 100 for the three left side bus bars.

As described above, according to the door-type insulating block 200 for a bus bar according to the present invention, it is possible to form an assembled insulating block which is assembled to be applied to the switchboard 10 of various sizes and which is firmly coupled, The insulating space S is communicated with the outside through the opening and closing door 280 and the bus bar (not shown) through the fork-type connector 100 for the bus bar It is possible to provide a door-type insulating block 200 for a bus bar which can stably and firmly be insulated even when the bus bars B are brought into contact with each other.

In addition, the door-type insulating block 200 for a bus bar, which is simple and easy to assemble, is modularized in accordance with various installation standards related to the bus bar B, thereby making it possible to mass- Insulation work on the bus bar (B) can be made easily, quickly and safely without power interruption.

The connector-assembled insulator assembly 300 formed by combining the fork-like connector 100 for a bus bar and the door-shaped insulation block 200 for a bus bar according to the present invention as described above can be manufactured by completely insulating or shielding the bus bar B A more secure and efficient live operation can be achieved by allowing the electric power to be drawn and received from various unit units such as a breaker or a protection relay in the switchboard 10 or the load side.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is obvious to those who have. Accordingly, such modifications or variations should not be individually understood from the technical spirit and viewpoint of the present invention, and modified embodiments should be included in the claims of the present invention.

10: Switchboard 11: Enclosure
20: external drawing input / output line 30:
100: Fork-type connector for busbar
110: fork type terminal 111: fork type member
112: contact terminal 112A: incision ball
112B: Bending section 113:
113A: fastening ball 113B: wire connecting ball
120: insulated housing 122: front housing
123: rear housing 124: guiding incision groove
125: seat part 127: rail
130: Insulation cover 132: Rail groove
134A: hook 134B: hook hook ball
140: Elastic body 142: Fixing projection
144: pressing portion 146: elastic supporting portion
200: insulation block 210: side plate
220: outer boundary wall 230: outer coupling portion
240: inner side wall 250: inner side coupling part
280: opening / closing door 300: connector coupling type insulating coupling body

Claims (10)

A connector electrically connected to one side of a bus bar provided inside the enclosure of the switchboard to draw out the electricity,
A fork-shaped terminal made of a pair of fork-like members which are opposed to each other so that one side of the one side of the bus bar is inserted and accommodated therein,
A fork-shaped terminal is fixed in a state where an opening is formed in one surface of one end of the fork-shaped terminal, and a guide incision groove for guiding insertion of the busbar is formed at the other end of the fork- An insulating housing;
An insulating lid part for opening and closing the opening part; And
And an elastic body provided between the fork-shaped terminal and the insulating housing to elastically support the fork-shaped members toward the mutually facing directions. The method according to claim 1,
The fork-
An insertion space formed at a predetermined distance apart from the fork member so that one side of the booth bar is inserted into one end of the insertion space and the fork member being recessed outwardly so as to accommodate one side of the booth bar, A contact terminal having a receiving space; And
And a forked member having the forked member closely coupled to the other end of the forked member. 3. The method of claim 2,
The contact terminal includes:
At least one cutting hole formed along the bus bar insertion direction at the free end of the contact terminal and a bent portion bent outward at the free end of the contact terminal,
Wherein the withdrawing < RTI ID =
At least one fastening hole provided for screwing with the insulating housing, and a wire coupling hole provided so as to engage with the external lead-out electric wire. The method of claim 3,
Wherein the insulating housing comprises:
A front housing having the contact cutting groove formed therein to receive the contact terminal therein and to have a wider width toward the bus bar; And
And a rear housing extending from a rear side of the front housing, the rear housing having a seating part for supporting one side of the drawer in a state where the opening is formed on one side of the rear housing. 5. The method of claim 4,
The elastic body may be,
And is in the form of a leaf spring,
A fixing protrusion formed at one end to fit into a fixing hole formed at one side of the contact terminal;
A pressing portion formed at the other end in a shape corresponding to the shape of the bent portion; And
And an elastic support portion bent toward the inner side surface of the front housing between the fixing protrusion and the pressing portion to elastically support the contact terminal toward the insertion space. 6. The method of claim 5,
The insulated lid portion
Rail grooves are formed on the lower surfaces of both side portions along the longitudinal direction,
The rear housing includes:
A rail corresponding to the rail groove is provided along the longitudinal direction,
Wherein the insulating lid slides along the rail longitudinally to open and close the opening. The method according to claim 6,
And the insulating cover portion and the rear housing are coupled,
Wherein at least one of the hooks is formed on one of the sides and the hooking hole is engaged with the hook on the other side. An insulating coupling body comprising a fork-type connector for a bus bar according to any one of claims 1 to 7 and an insulating block used for insulating the bus bar provided inside the enclosure of the cabinet,
A side plate having a plate shape and provided with an opened hole;
An outer boundary wall protruding inward from an inner surface of the side plate;
An outer engaging portion spaced apart from the outer boundary wall and protruding inward from an inner side surface of the side plate; And
And an opening / closing door rotatably coupled to the side plate to open / close the opening hole,
Wherein when the pair of insulating blocks are assembled to face each other, the outer boundary wall is joined with the outer coupling portion of another insulating block to form an insulating space in which the busbars are accommodated and shielded, and at least one fork- Wherein the insulated space is inserted into the opening and closing door to electrically communicate with the bus bar of the insulating space. 9. The method of claim 8,
An inner boundary wall positioned between the outer boundary wall and the outer coupling section and protruding inward from an inner surface of the side plate; And
And an inner engaging portion located between the outer side wall and the inner side wall and protruding inward from an inner side surface of the side plate,
Wherein when the pair of insulating blocks are assembled so as to face each other, the inner boundary wall is combined with the inner coupling portion of the other insulating block so that three insulating spaces are accommodated in which the three bus bars are accommodated. A connector-coupled insulation bond. 3. The method of claim 2,
The opening hole and the opening /
The inner boundary wall and the outer coupling portion, and between the outer boundary wall and the inner coupling portion, between the inner coupling portion and the inner boundary wall,
Wherein the opening /
A first door located on the inner side of the side plate and hinged adjacent to an edge of the opening hole to open and close half of the opening hole and a second door which is located on the inner side of the side plate and which is opposite to the edge of the opening hole A second door hinged adjacent to the first door to open and close half of the opening hole and first and second elastic members that elastically support the first and second doors in a direction in which the first and second doors block the opening hole Wherein the first and second connection terminals are electrically connected to each other.

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