KR102036574B1 - Connector for power distributor - Google Patents

Abstract

An objective of the present invention is to provide a connector for a power distributor which is conveniently and easily assembled, and prevents a connection fault and an escape of a connection terminal while in use. The achieve the objective, the connector for a power distributor comprises: a housing having a container-type insertion unit penetrated horizontally and formed on one side thereof, a wire connection unit formed on the other side thereof and penetrated horizontally, whose upper surface is opened, and a vertically long fixing guide formed on both sides of an inner wall of the wire connection unit; a pair of connection terminals vertically symmetrically inserted into the housing, and provided with a connection plate formed on one end thereof, a connection pin formed on the other end thereof and elastically spread by elasticity and connected when a busbar is inserted, and a fixing groove formed on an edge of both sides of the connection plate; an elastic member to enclose and support both sides of the connection pin of the connection terminals, and generate an elastic force to return the connection pin spread when the busbar is inserted to an original state; a holder inserted into the fixing groove and the fixing guide to maintain a state where the connection terminals and the elastic member are fixed in the housing; and a cover to open and close the opened upper surface of the wire connection unit.

Description

Connector for power distributor {

The present invention relates to a connector for a power splitter, and more particularly, a power splitter of a motor control center that can be easily and easily assembled without a separate assembly tool or parts, and can prevent connection failure and detachment due to external force. It relates to a connector for.

In general, a motor control center (control panel or switchboard) is installed in various industrial facilities such as factories, buildings, hospitals, and multi-unit houses to safely protect electric motors and related load devices. It serves various control functions such as monitoring and blocking distribution and overcurrent flow.

As an example of such a motor control center, Korean Patent Publication No. 10-0776713 is equipped with various motor control parts such as voltage drop and current transformer, switchgear, relay, automatic breaker, fuse, timer, electronic over current relay (ECOR), and the like. A number of MCC units are each housed in a multi-layer cabinet for easy maintenance and replacement of the parts, and when the MCC unit is pulled forward, the primary and secondary connectors for power supply are simultaneously installed in the main booth. Disclosed is a structure in which the bar is electrically separated and drawn out to the front of the cabinet.

As another example, Korean Patent Publication No. 10-0961777 discloses a cabinet having a main busbar built in the rear, and a drawer type inserted into and withdrawn from the cabinet, and converted to a secondary side and The main busbar and the power distribution module mounted on the rear of the MCC unit, the power distribution module that distributes the primary side power supplied from the main busbar, the secondary side power output from the MCC unit, and the secondary side power output from the MCC unit. Disclosed is a structure including a connector for electrically connecting a to a wire.

Here, the connector is connected to various unit units such as a breaker or a protection relay in the control center, or a load side and a wire to distribute power supplied from the busbar.

Meanwhile, as shown in FIG. 1, the connector 1 for the power distributor of the motor control center according to the related art is inserted into and fixed to the body portion 10 and the body portion 10 and the elasticity of the finger member 22. It consists of a plurality of connection clips 20 for maintaining the electrical connection state with the busbar by the action.

And the body portion 10 is formed with a fixing hole 16 for fixing the connection clip 20, the connection clip 20 is provided with a fixing bolt 25 for screwing into the fixing hole (16). have.

By the way, when the connecting clip 20 is in contact with the busbar in a slightly crooked state occurs, the slip occurs, due to this, there is a limit that the electrical contact failure and current resistance, short, etc. occurs, the safety falls.

In addition, there is a problem that the assembly process is quite difficult and inconvenient due to the nature of the method of screwing with the fixing bolt 25 when fixing the connection clip 20 to the body portion 10.

Here, the above-described background or the prior art is merely to help the present inventors understand or understand the technical meaning of the present invention as information obtained in the process of deriving the present invention, and the technology to which the present invention belongs before the application of the present invention. It does not mean that the technology is widely known in the field.

KR 10-0500864 B1 (2005.07.04) KR 20-0304739 B1 (2003.02.05) KR 10-1338129 B1 (2013.12.02) KR 10-0961777 B1 (2010.05.28) KR 10-1594012 B1 (2016.02.04) KR 10-1609852 B1 (2016.03.31) KR 10-1551908 B1 (2015.09.03) KR 10-1551907 B1 (2015.09.03) KR 10-2017-0033720 A (2017.03.27)

Accordingly, the present inventors can easily and easily assemble without the need for a separate assembly tool or parts by devising in view of solving the limitations and problems of the power distribution connector of the existing motor control center while comprehensively considering the above-mentioned matters. In addition, the company intends to develop a connector for a power distributor of a motor control center with a new structure that can prevent the connection terminal from being loose due to external force during use or disconnection from the busbar. The invention of the present invention was invented as a result of constant research.

Therefore, the technical problem and object to be solved by the present invention is to provide a connector for a power splitter that is easy to assemble and prevent connection defects and departures due to external force.

The technical problems and objects to be solved by the present invention are not limited to the technical problems and objects mentioned above, and other technical problems and objects not mentioned will be clearly understood by those skilled in the art from the following description.

Specific means according to an embodiment of the present invention for achieving the above object and to solve the technical problem, the cylindrical insert portion which passes from side to side on one side, the busbar insertion groove is formed in the center of the insert portion, Longitudinal locking grooves are formed on both sides of the inner wall of the insertion part at regular intervals vertically and vertically, and a wire connection part is formed on the other side and the upper surface is opened, and the fixing guide is vertically long on both sides of the inner wall of the wire connection part. And a connecting pin which is inserted symmetrically into the inside of the housing, is connected to each other, and a connecting plate is formed at one end thereof, and is connected elastically by elasticity when the busbar is fitted at the other end thereof. A pair of through-holes are formed at the center of the plate and the fixing grooves are formed at both edges of the connecting plate. A fastening member and an elastic member which is inserted so as not to escape the locking groove while supporting both of the connecting pins of the connecting terminal, and generates an elastic force for returning the connecting pin that is opened when the busbar is fitted; A holder for keeping the connection terminal and the elastic member fixed to the inside of the housing by being inserted into the fixing guide and the fixing groove, and both ends of the housing and the housing are connected by pin joints, and rotate about the pin to connect the wire connecting portion. A connector for power distributor, characterized by including a cover for opening and closing the opened upper surface of the present invention.

As a result, the present invention can be easily and easily assembled without a separate assembly tool or parts, and also prevents connection failure due to loose connection terminals due to frequent external force or disconnection from the busbar to cut off the power supply. .

In addition, in a preferred embodiment of the present invention, a contact portion is formed on the upper end of the holder, and the contact portion is formed at least one or more escape preventing protrusions causing contact interference with the tip of the insertion portion is that the holder is easily separated from the housing You can prevent it.

In addition, in a preferred embodiment of the present invention, a contact portion is formed on an upper end of the holder, and a push protrusion portion that causes contact interference with the contact portion is formed on one lower surface of the cover so that the cover rotates about the pin so that the cover The holder may be prevented from being separated from the housing when the opened upper surface of the wire connection part is closed.

In addition, in a preferred embodiment of the present invention, the pressing protrusion is formed to press the contact portion of the holder naturally when the cover is rotated about the pin to close the open upper surface of the wire connecting portion by the principle of lever more stably The holder can keep the connection terminal fixed to the housing.

In addition, in a preferred embodiment of the present invention, the locking projection is formed on the other end of the cover, and the locking projection is inserted into both ends of the upper end of the wire connecting portion to form a locking hole for maintaining the locked state, so that the connecting terminal in the housing It is possible to prevent the departure.

Embodiments of the present invention, which have a means and a configuration for achieving the above object and technical problem, are a separate assembly tool or component because the structure is to press and fix the holder in the state in which the connection terminal is inserted into the housing Simple and easy to combine and assemble without

In addition, it is a structure for supporting and fixing the connection terminal double, unlike the conventional, the fixed part is damaged due to external force and the connection terminal is loose, which can prevent connection failure occurs or easily separated from the busbar to block the power supply. The electrical safety can be improved.

In addition, in the process of closing the cover, the lever naturally presses the holder on the principle of the lever and keeps the pressed state so that the connection terminal can be more stably fixed to the housing.

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

1 is an exploded view showing a connector for a power splitter according to the related art.
2 is an exploded perspective view illustrating a connector for a power splitter according to an exemplary embodiment of the present invention.
3 is an exploded perspective view of a cover of components of a connector for a power splitter according to an exemplary embodiment of the present invention.
4 is a perspective view illustrating a housing among components of a connector for a power splitter according to an exemplary embodiment of the present invention.
5 is an enlarged longitudinal sectional view showing a state in which a cover is closed in a connector for a power splitter according to an exemplary embodiment of the present invention.
6 is an enlarged longitudinal sectional view showing a state in which a cover is opened in a connector for a power splitter according to an exemplary embodiment of the present invention.
7 is a locally enlarged longitudinal sectional view showing an operating state of a connector for a power splitter according to an exemplary embodiment of the present invention.

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

Prior to this, terms to be described below are defined in consideration of functions in the present invention, which clearly indicates that the concept is to be interpreted in a concept consistent with the technical spirit of the present invention and commonly used or commonly recognized in the art.

In addition, when it is determined that the detailed description of known functions or configurations related to the present invention may obscure the gist of the present invention, the detailed description thereof will be omitted.

The accompanying drawings are exaggerated or simplified in order to explain and explain the structure and operation of the technology for convenience and clarity, and it is to be understood that each component does not exactly match the actual size and shape.

In addition, as used herein, the term and / or means a combination of a plurality of related items or any item of a plurality of related items, and when a part includes any component, this is a particularly opposite description. Unless otherwise indicated, it does not exclude other components, which means that other components may be further included.

In other words, it means that there is a feature, number, steps, actions, components, parts or a combination thereof described in the present specification, one or more other features or numbers, step action components, parts or a combination thereof It should be understood that they do not exclude the presence or the possibility of adding them.

In addition, the terms "unit" and "unit" mean a module form that functions as a unit or a role that processes at least one function or any certain operation desired in a system, and is a combination of hardware or software or a combination of hardware and software. It can be implemented as a device or an assembly capable of performing independent operations or the like through means.

Terms such as top, bottom, top, bottom, or top, bottom, top, bottom, etc. are used for convenience to distinguish relative positions in each component. For example, the upper part of the drawing may be named and the lower part of the bottom.

In addition, terms such as first and second may be used to describe various components. That is, terms such as first and second may be used only for the purpose of distinguishing one component from other components. For example, the first component may be referred to as the second component without departing from the scope of the present invention, and the second component may also be referred to as the first component.

As shown in Figure 2 to Figure 6 the main configuration of the connector for the power splitter according to the embodiment of the present invention is largely the housing 110, the connection terminal 120, the elastic member 130, the holder 140 and the cover ( 150).

The housing 110 mounts and protects a terminal part including the connecting terminal 120 and the elastic member 130 therein, and is formed with a cylindrical insert 111 which passes through from side to side. Busbar insertion grooves 112 are formed in the center of the front end to guide the busbars to be fitted, and the locking grooves 113 long to the left and right at both sides of the inner wall of the insertion part 111 are spaced up and down at regular intervals. Formed.

In addition, the inner part of the insertion part 111 is integrally formed with the support part 114 which can stably support the center part of the connection terminal 120 which is symmetrically overlapped.

And the other end of the housing 110, that is, the wire connecting portion 115 which passes through the left and right and is opened on the opposite side to the inserting portion 111 is formed integrally with the inserting portion 111, the wire connecting portion 115 Longitudinal fixing guides 116 are formed on both sides of the inner wall.

In addition, both ends of the upper end of the front of the wire connecting portion 115 is formed so that both ends of the cover 150 can be connected to the pin joint, that is, a pin hole 117 into which the pin 151 of the cover is fitted, and the wire connecting portion ( 115, lock holes 118 into which the locking protrusion 153 of the cover 150 is fitted are formed at both upper ends of the rear side.

In addition, both ends of the upper end of the wire connecting portion 115 is elastically opened by elasticity when contacted with the locking protrusion 153 of the cover 150 so that the locking protrusion 153 may naturally ride down and fit into the locking hole 118. It is formed with an oblique inclined surface.

Here, the housing 110 is made of an insulating material such as synthetic resin, and the plurality of inserting portions 111 and the wire connecting portions 115 may be integrally formed as one form so that the plurality of terminal portions are arranged side by side.

That is, four inserting portions 111 and wire connecting portions 115 may be formed integrally with each other in the horizontal direction for the purpose of electrically connecting the main bus bars on the R, S, T, and N phases.

The connection terminal 120 is formed in a pair and inserted up and down symmetrically into the inside of the housing 110. The connection plate 121 which is in close contact with both inner walls of the wire connection portion 115 is in a plate shape on one side in the longitudinal direction. The connecting pins 122 are formed on the other side (opposite side) and connected to each other while being elastically opened by elasticity when the busbars are fitted.

In addition, a through hole 123 is formed in the center of the connecting plate 121 to easily and easily connect a terminal such as an electric wire or a cable with a bolt and a nut, and the fixing grooves are formed at both edges of the connecting plate 121. 124 is formed.

In addition, the connection pin 122 is provided with a mounting groove (unsigned) for a stable coupling with the elastic member 130.

Here, the connection terminals 120 can maintain a more firmly coupled state and a more stable connection state by inserting bolts and tightening nuts into the through holes 123 drilled in each of them to connect the wires in the overlapped state so as to overlap each other.

The connection terminal 120 is preferably formed of a metallic material or an alloy such as copper or aluminum having excellent mechanical strength, heat resistance, and electrical conductivity.

The elastic member 130 generates elastic force for retracting the connection pin 122 that is opened when the busbar is fitted, and is caught while supporting both sides of the connection pin 122 of the connection terminal 120. It is fitted so as not to be out of the groove 113.

In addition, the elastic member 130 is mounted with a gap between the engaging groove 113 to prevent contact failure when the busbar is inserted between the gap of the connecting pin 122.

That is, the elastic member 130 is formed in the form of a snap ring (U) shaped split ring having one side of the round shape has a spring action and both ends facing each other are coupled to the side of the connection terminal 120 Thereby, the distance between the connection terminals 130 is automatically adjusted by the elastic action to maintain a solid contact state with the terminal or the busbar of the terminal block.

The holder 140 serves to maintain a state in which the connection terminal 120 and the elastic member 130 are fixed inside the housing 110. The holder 140 passes the fixing guide 116 and the fixing groove 124 at the same time. It is formed so that it can be plugged in by force fit method.

At least one separation preventing protrusion 141 causing contact interference with a tip of the insertion portion 111 of the housing 110 is formed at an upper end of the holder 140.

That is, the departure preventing protrusion 141 serves to prevent the holder 140 from being inadvertently detached from the housing 110.

In addition, the upper end of the holder 140 is integrally formed with the pressing portion 152 of the cover 150 and the contact portion 142 causing contact interference.

The cover 150 opens and closes the opened upper surface of the wire connection part 115, and both ends of the pinhole 117 of the housing 110 are connected to each other by pin joints.

In addition, the lower surface of the cover 150 is integrally formed with the pressing portion 152 causing contact interference with the contact portion 142.

That is, the cover 150 rotates around the pin 151 to open and close the opened upper surface of the wire connection part 115, and in particular, when the closing protrusion 152 causes contact interference with the contact part 142 of the holder. Prevents 140 from leaving housing 110.

In addition, opposite ends of the cover 150 are integrally formed with locking projections 153 which are elastically fitted in the locking holes 118 of the wire connecting portion 115 and maintain their closed state.

Since the connector for the power splitter according to the embodiment of the present invention configured as described above is a structure for fixing the connection terminal 120 to the housing 110 by the holder 140, it is easily and easily combined and without a separate assembly tool or parts. Can be assembled.

Therefore, when the load capacity is increased due to the change in power usage, the plurality of connection terminals 120 may be easily and easily stacked and combined at regular intervals.

In addition, even if it is shocked from the outside or the connection and disconnection operation frequently, the portion fixing the connection terminal 120 is not easily broken, the connection terminal 120 is loose, thereby preventing unstable connection or connection failure, further busbar It can be easily separated from the power supply to prevent the power supply from being cut off.

In addition, as shown in FIG. 7, the cover 150 naturally not only presses the holder 140 but also the locking hole of the wire connection 115 in the process of closing the housing 110 with the cover 150. 118, the locking protrusion 153 of the cover 150 is inserted into the lock (closed) state so that the holder 140 can be prevented from being separated from the housing 110 and the connection terminal 120 is more stable. As a result, the state fixed to the housing 110 can be maintained.

That is, even when the holder 140 is not completely fitted in the housing 110 due to the mechanical property of pressing the holder 140 with a finger and assembling the fixing guide 116 and the fixing groove 124 in a fitting manner during assembly, the cover 150 The pin 51 of the supporting point and the role of the supporting point, and the pressing protrusion 152 serves as the role and the role of the operation point, so that the holder 140 can be easily and reliably inserted simply by closing the cover 150.

On the other hand, the present invention is not limited by the above-described embodiments and the accompanying drawings, and various modifications and applications that are not illustrated within the scope not departing from the technical spirit of the present invention, as well as of each component It is apparent to those skilled in the art that the present invention may be widely applied by changing to other embodiments equivalent to substitution.

Therefore, the contents related to the modification and application of the technical features of the present invention should be interpreted as being included in the technical spirit and scope of the present invention.

110: housing 111: insertion part
112: busbar insertion groove 113: locking groove
114: support portion 115: wire connection portion
116: fixing guide 117: pinhole
118: locking hole 120: connection terminal
121: connecting plate 122: connecting pin
123: through hole 124: fixing groove
130: elastic member 140: holder
141: release preventing protrusion 142: contact portion
150: cover 151: pin
152: push protrusion 153: locking projection

Claims (4)

A tubular insertion portion 111 is formed on one side and communicates with the left and right, and the busbar insertion groove 112 is formed in the center of the tip of the insertion portion 111, and the wire connecting portion 115 is connected to the left and right and opened on the other side. A housing 110 having a fixing guide 116 extending vertically on both sides of the inner wall of the wire connection unit 115;
Hanging grooves 113 formed on both sides of the inner wall of the insertion portion 111 formed long left and right at regular intervals up and down;
The connecting pins 122 are inserted symmetrically into the inside of the housing 110, and the connecting plates 121 are formed at one end thereof, and the connecting pins 122 connected to each other are elastically opened by elasticity when the busbars are fitted at the other ends. And a pair of connection terminals 120 having a through hole 123 for connecting electric wires at a center of the connection plate 121, and fixing grooves 124 formed at both edges of the connection plate 121. ;
A support part 114 formed at an inner center of the insertion part 111 to support a center portion of the connection terminal 120 which is symmetrically overlapped with each other;
Resilient force to be inserted so as not to escape the locking groove 113 while supporting both sides of the connecting pin 122 of the connecting terminal 120, and to return the connecting pin 122 to the original when the busbar is fitted An elastic member 130 generating a;
A holder 140 inserted into the fixing guide 116 and the fixing groove 124 to maintain the connection terminal 120 and the elastic member 130 fixed inside the housing 110;
At least one separation preventing protrusion (141) formed at an upper end of the holder (140) and causing contact interference with the tip of the insertion portion (111) of the housing (110) to prevent it from being separated from the housing (110);
A contact part 142 formed on an upper end of the holder 140;
A cover 150 which is connected to both ends of the housing 110 by a pin joint and rotates around the pin 151 to open and close the opened upper surface of the wire connection unit 115; And
The cover 140 is integrally formed on one lower surface of the cover 150, and the holder 140 rotates when the cover 150 rotates around the pin 151 to close the opened upper surface of the wire connection part 115. A pressing protrusion 152 causing contact interference with the contact portion 142 to prevent the housing 110 from being separated;
Connector for power distributor comprising a.
delete delete The method of claim 1,
Locking projections 153 are formed at both ends of the cover 150,
The connector for power distribution is formed with a locking hole 118 is inserted into both sides of the upper end of the wire connecting portion 115 to maintain a locked state.

Images