KR100630497B1 - connector and switch board utilizing the same - Google Patents

Abstract

According to the present invention, the main body having a first and a second support portion spaced apart from each other by a predetermined interval;

A screw coupling part which is slidably installed on the first support part of the main body, and has a knob fixed to one end and a terminal terminal inserted into the other end thereof, and a pressure jaw for pressing the lead terminal to a side adjacent to the screw coupling part; With a fixed member

A coupling hole for screwing the screw coupling portion is formed in the second support portion on the side corresponding to the screw coupling portion of the fixing member, and is provided with a terminal coupling portion installed on the second support portion to fix the supply terminal. It is done.

Switchgear, breaker, control lever

Description

Connector and switch board utilizing the same

1 is a perspective view of a switchboard according to the present invention;

2 is a perspective view showing a state in which the door of the switchboard is open;

3 is a perspective view showing an extractor breaker,

Figure 4 is a partial ablation perspective view showing the breaker operating state,

5 is a perspective view of a connection terminal,

Figure 6 is a cross-sectional view showing an auxiliary operation button for operating the earth leakage breaker.

<Explanation of symbols for the main parts of the drawings>

10; switchboard

20; breaker

40; Connection terminal

The present invention relates to a switchboard, and more particularly, to a switchboard having an improved opening and closing structure of a circuit breaker and a door installed between a main power supply terminal and a lead terminal to control power.

In general, a power distribution panel, a distribution panel, a distribution panel, and the like are electrical facilities for safely supplying relatively high power, and include a cabinet having a space portion and a door connected to the cabinet and hinged to the cabinet to block the space from the outside. A substrate is provided in the space portion, and a circuit breaker, a connection terminal for drawing out, and an outlet are installed in the substrate.

In order to operate the breaker inside the switchboard or the power switchboard or to check the operation state of the breaker, there is a need to open and check the door of the cabinet. In particular, it is preferable to operate and operate a breaker in order to connect a terminal for drawing out the switchboard of the cabinet and a terminal of the load side, and it is not easy to check whether the breaker is operated. And when the door is opened in a state in which the breaker installed inside the switchboard is not operated, it can cause a fatal damage to the operator by the high pressure current.

In view of this point, Korean Patent Publication No. 2003-068842 discloses a circuit breaker and a door interlock device of a switchboard.

The disclosed door interlock device is installed in the door of the breaker chamber in which the breaker is installed and the door handle is fixed to the rear end and rotatably installed in the case, and one side of the engaging pin is caught when the breaker is in the retracted position. It consists of an interlock lever that fits into the groove and restrains the handle of the door.

Since the interlock device as described above cannot directly view the operation state of the circuit breaker, a malfunction may occur when the handle is operated.

Registered Utility Model No. 20-313639 discloses an example of an external handle operating device of a breaker.

An external handle operating device of the disclosed breaker includes a base coupled to an outer case of the breaker, a lever hinged to the base and pivoted, and coupled to a rear end of the lever to rotate as the lever moves to rotate the handle of the breaker. Contains the clip.

It is difficult to check the operating state of the circuit breaker operating inside the case, but has a structure to block the circuit breaker by installing a lever rotated to the outer case of the breaker as described above. In addition, there is no configuration in which the operation of the breaker and the opening and closing device of the door are linked.

On the other hand, the switchboard is provided with a connection terminal for drawing power, an example of this connection terminal is disclosed in registered Utility Model No. 20-0176372. The disclosed connection terminal is fastened to form a major hole on both sides of the support coated with some insulating material, the bolt is fixed on one side so that the protrusion bar integral with the bolt inside the protrusion of the support, the other side of the protrusion inside the protrusion It is formed to idle the tightening member having a concave concave portion and the outer side is provided with a nut for raising and lowering the bolt.

The connecting terminal configured as described above is provided with a tightening member is idling at the end of the bolt, but the pressing force is made by the bolt screwed with the bolt should be relatively high in the structural strength of the support. In addition, since the tightening member should be rotatably installed at the end of the bolt, the relative structure is complicated, and the tightening member is moved forward and backward by using the bolt supported on the protrusion, so that the bolt is fully retracted with respect to the protrusion when the connecting terminal is separated. There is a hassle to do.

The present invention is to solve the problems as described above, it is possible to operate the circuit breaker from the outside of the cabinet, the object is to provide a switchboard that can observe the operating state of the circuit breaker from the outside.

Another object of the present invention is to provide a connection terminal that can significantly reduce the working time according to the operation for connecting the terminal.

Still another object of the present invention is to provide a switchgear capable of opening and closing a door of a cabinet in which a breaker is incorporated in connection with the operation of the breaker.

Connection terminal of the present invention for achieving the above object,

A main body having first and second support portions spaced apart from each other by a predetermined distance;

A screw coupling part which is slidably installed on the first support part of the main body, and has a knob fixed to one end and a terminal terminal inserted into the other end thereof, and a pressure jaw for pressing the lead terminal to a side adjacent to the screw coupling part; With a fixed member

A coupling hole for screwing the screw coupling portion is formed in a second support portion on a side corresponding to the screw coupling portion of the fixing member, and is provided with a terminal coupling portion installed on the second support portion to fix the supply terminal.

In the present invention, the fixing member between the knob and the first support portion is provided with a spring so that the fixing member is elastically biased toward the knob side.

Switchboard for achieving the above object,

A cabinet having an inner space, a door hinged to the cabinet and sealing the inner space;

A breaker in which a main body is installed in the cabinet and an operation lever protrudes out of the cabinet;

Opening and closing means for selectively opening and closing the door according to whether the breaker is operated according to the operation of the breaker's operation lever;

Is installed in the cabinet is characterized in that it comprises at least one connection terminal connected to the withdrawal terminal of the breaker for supplying power to the outside.

In the present invention, the cabinet door is further provided with a viewing window for checking the operating state of the cabinet, at least one earth leakage breaker is installed in the cabinet and the auxiliary operation button for operating the earth leakage breaker is It is installed on the door.

Hereinafter, a preferred embodiment of a switchboard using a connection terminal according to the present invention with reference to the accompanying drawings in detail as follows.

1 and 2 show an embodiment of the switchboard 10 according to the present invention.

Referring to the drawings, the switchboard 10 includes a cabinet 12 having an internal space 11 and a door 13 hinged to the cabinet 12 to seal the internal space 11. . The upper part of the cabinet 12 may be provided with a roof for preventing water from flowing into the inner space 11 when installed in the open area.

A panel (not shown) is provided inside the cabinet 12, and a panel circuit breaker 20 is installed between a main terminal for supplying power and a supply terminal to control power. The breaker 20 is configured such that an operating lever 20a for operating the breaker 20 is drawn out of the side surface of the cabinet 12 to operate the breaker 20 from the outside of the cabinet 12. The withdrawal position of the operation lever 20a of the circuit breaker 20 is not limited to the above embodiment and may be variously modified according to the characteristics of the circuit breaker.

The circuit breaker 20 is rotatably installed in the housing 21 as shown in FIGS. 3 and 4, and the connecting terminals 22a, 22b, and 22c protruding to both sides of the outer circumferential surface are rotated. A supply and withdrawal connector installed at upper and lower portions of the member 23 and the housing 21 and selectively coupled to and separated from the connecting terminals 22a, 22b, and 22c when the rotating member 23 is rotated forward and backward. 24a, 24b, 24c, 25a, 25b, and 25c, and an operating lever 21a connected to the rotating member 23 and drawn out of the cabinet 12. The circuit breaker is not limited to the above-described embodiment and may be any structure as long as the circuit can connect the supply and the drawout connectors to each other.

On the other hand, the substrate is provided with at least one earth leakage breaker 30, a plurality of connection terminals 40 and the outlet 50 for discharging the power supplied from the drawing connector to the outside. In addition, the door 13, which is rotatably installed in the cabinet 12, opens and closes the door 13 to open when the breaker 20 is operated by rotating the operation lever 21a so that the supply of electric power is cut off. 60, and an auxiliary operation button 31 for operating the earth leakage breaker 30.

As shown in FIG. 5, the connection terminal 40 includes a main body 41 having first and second support portions 41a and 41b spaced apart from each other by a predetermined interval, and a first support portion 41a of the main body 41. It is provided with a fixing member 42 to be slidable. At one end of the fixing member 42, that is, the outer end thereof, a knob 43 for rotating the fixing member 42 is installed, and at the other end thereof, a screw coupling part 44 into which the drawing terminal 100 is inserted. The pressing jaw 45 for pressurizing the terminal terminal is provided on the side adjacent to the screw engaging portion 44. In addition, a coupling hole 46 screwed with the screw coupling part 44 is formed in the second support part 41b corresponding to the screw coupling part 44, and a terminal coupling part (b) is formed in the second support part 41b. 47). The terminal coupling portion 47 is screwed with a coupling rod 47a fixed to or extending from the second support portion 41b and at least one nut 47b screwed to the coupling rod 47a. The drawing terminal is not limited to the above-described embodiment and may be any structure as long as the drawing terminal can draw power.

The opening and closing means 60 detects the operation of the operation lever 21 of the circuit breaker 20 and opens and closes the door 13 in association with the circuit breaker 20. The rotating member 23 or the operation of the circuit breaker 20 is performed. Detection sensor 61 for detecting the blocking state of the breaker 20 by detecting the rotation of the lever (21a), and the switch 62 for operating the electrical signal of the sensor 61 to open and close the door (13) ). The switch 62 is installed at the edge of the door 13, and the lock member 62a, which is drawn in and out from the edge of the door 13, and the solenoid 62b which moves the lock member 62a back and forth. Equipped. The detection sensor 61 may be formed of a proximity sensor, a limit switch, or a light emitting sensor, but is not limited thereto, and may be any structure capable of detecting an operation state of the breaker by detecting an operation state of the operation lever 21. Do.

On the other hand, the auxiliary operation button 31 installed on the door 13 to operate the ground fault interrupter 30, the cover 31a and the ground fault breaker are installed on the inner surface of the door 13 as shown in FIG. An operation rod 31b installed on the cover 31a so as to be able to move forward and backward, and a button 31c installed on an end of the operation rod 31b and positioned on an outer circumferential surface of the door 13; And a spring 31d supported by the cover 31a to elastically bias the working rod forward. The auxiliary operation button for operating the ground fault circuit breaker 30 is not limited to the above-described embodiment, and any structure may be used as long as the ground fault circuit breaker 30 can be operated.

Perspective windows 15 and 25 are formed in the door 13 and the breaker, respectively, to observe the operating state of the breaker 20. At this time, the see-through window formed on the see-through window 25 and the door 13 of the breaker 20 is preferably located on the same line to observe the operating state of the breaker 20 from the outside. Reference numeral 48 is a spring.

Referring to the operation of the switchboard having a connection terminal according to the present invention configured as described above are as follows.

In the switchboard 10 according to the present invention, the circuit breaker 20 is installed inside the cabinet 12, and the operation lever 21 is drawn out from the cabinet 12 to the outside so that the operation can be performed externally. Since it can be observed through the see-through windows (15, 25) can prevent the safety accident due to the operation check failure of the breaker (20).

In particular, the breaker 20 is operated by the door opening and closing means 60 of the door 13 of the switchboard 10 so as to be opened only when the power supply is cut off. That is, when the operation lever 21a of the breaker 20 is operated, the power cut-off state of the breaker 20 is detected by the detection sensor 61 based on the operation state of the operation lever 21a. The solenoid 62b of the switch 62 installed in the door 13 is activated based on the detected signal. The operation of the solenoid 62b causes the locking member 62a to be retracted to release the locking state of the door 13 to the cabinet 12. Therefore, the door 13 is not opened when the operation lever 21a is not operated and power supply is not interrupted by the breaker 20.

On the other hand, since the auxiliary operation button 31 of the earth leakage breaker 30 is installed in the door 13, the operation rod 31b is retracted by pressing the auxiliary operation button 31 without opening the door 13, and the earth leakage breaker The button at 30 can be pressed to operate.

As described above, power may be drawn using the connection terminal 40 in the state in which the door 13 is opened. First, in order to draw power using the connection terminal 40, the knob 43 is rotated to separate the screw coupling portion 44 from the screw coupling hole 46. At this time, when the screw coupling hole 46 and the screw coupling portion 44 is separated from the spring 48 which is supported by the fixing member 42 and is installed between the knob 43 and the first support portion 41a. By this, the fixing member 42 is retracted. In this state, the lead terminal 100 is coupled to the screw coupling portion 44, and the screw coupling portion 44 into which the lead terminal 100 is inserted using the knob 43 is coupled to the coupling hole 46. Screw in. At this time, the coupling hole 46 and the screw coupling portion 44 are coupled to each other, so that the pressing jaw 45 is in close contact with the second support portion 41b and the lead terminal 100 interposed therebetween is supported by the second support portion ( 41b). In this case, the drawing terminal 100 is connected to the board by the terminal coupling part 47 fixed to the board and the power supply terminal can be prevented from shaking the power drawing terminal with respect to the board.

As described above, the withdrawal terminal and the switchboard having the same are connected to the operation lever and the operation protruding out of the cabinet to open and close the door and visually observe the opening and closing state of the breaker. Safety accidents can be prevented. In addition, it is easy to draw power by improving the operating force and durability of the drawer installed in the switchgear, it is possible to operate the earth leakage breaker from the outside of the cabinet can increase the response in an emergency.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent embodiments are possible.

Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

Claims (6)

A main body having first and second support portions spaced apart from each other by a predetermined distance; A screw coupling part which is slidably installed on the first support part of the main body, and has a knob fixed to one end and a terminal terminal inserted into the other end thereof, and a pressure jaw for pressing the lead terminal to a side adjacent to the screw coupling part; With a fixed member The second support portion on the side corresponding to the screw coupling portion of the fixing member is formed with a coupling hole for screwing the screw coupling portion, characterized in that the second support portion is provided with a terminal coupling portion for fixing the supply terminal Connection terminal. The method of claim 1, A connecting terminal between the knob and the first support portion is provided with a spring, characterized in that the fixing member is elastically biased toward the knob side. A cabinet having an inner space, a door hinged to the cabinet and sealing the inner space; A breaker in which a main body is installed in the cabinet and an operation lever protrudes out of the cabinet; Opening and closing means for selectively opening and closing the door according to whether the breaker is operated according to the operation of the breaker's operating lever; At least one connection terminal installed inside the cabinet and connected to a drawing terminal of the breaker to supply power to the outside; And an earth leakage circuit breaker installed inside the cabinet, and an auxiliary operation button installed on the door to operate the earth leakage circuit breaker. The method of claim 3, wherein Switchboard, characterized in that the cabinet door is further provided with a viewing window for checking the operating state of the cabinet. The method of claim 3, wherein The opening and closing means includes a detection sensor for detecting an operation state of the operation lever of the circuit breaker, and a locking member which is moved back and forth by the solenoid to open and close the door based on a signal monitored by the detection sensor. Switchboard. delete

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