JP2508791Y2 - Collective starter board - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a collective starter panel, and more particularly to a collective starter panel in which unit units are stacked and stored.

[Prior Art] Generally, in order to supply power to a wiring breaker mounted on a unit unit body, an electric wire is provided between a bus bar provided in a rear space of a rear panel of the unit unit body and the wiring breaker. I am trying to connect with.

FIG. 4 is a perspective view showing a unit board body of a conventional collective starter board, FIG. 5 is a perspective view showing an outline of a unit unit body housed in the unit board body, and FIG. 6 is a unit unit. It is a figure which shows the connection of the electric wire between the circuit breaker installed in a body, and a bus bar.

First, a conventional collective starter board will be described with reference to FIGS. 4 to 6. A door type panel 2 corresponding to each unit is mounted on the front side of the casing 1 of the unit board body, and a unit unit body 3 is housed in the opened portion of the door type panel 2 of the casing 1. The door type panel 2 is formed with notches 6 and 11. The notch hole 6 is for exposing the external operation handle 5 mounted on the front surface of the wiring breaker 4 installed in the unit unit body 3. Further, the notch hole 11 is for exposing the ammeter 8, the push button switch 9 and the indicator lamp 10 which are mounted on the openable / closable instrument mounting plate 7 provided at the lower front surface of the unit unit body 3.

A circuit breaker 4, a magnetic contactor 13, an overcurrent relay 14, etc. are mounted on the rear plate 12 of the unit unit body 3. Back plate 1
A plug-in terminal block 16 equipped with a plug-in connection terminal 15 is mounted on the back side of 2. An opening hole 18 is formed in the back plate 12, and an electric wire 17 that connects the circuit breaker 4 for wiring and the plug-in connection terminal 15 is inserted into the opening hole 18. The electric wire 17 is supported by an electric wire supporting member 19 mounted on the back surface side of the back plate 12, and is connected to the connection terminal 20 of the insertion terminal block 16. A bus bar 21 is arranged in the space inside the unit board body on the back side of the unit unit body 3 so as to extend in the vertical direction. Then, when the unit unit body 3 is stored, the plug-in connection terminal 15 is plugged and connected to the bus bar 21, and power is supplied from the bus bar 21 to the wiring breaker 4.

[Problems to be Solved by the Invention] As described above, the conventional collective starter board has the wiring breaker 4
The electric wire 17 must be connected between the plug-in terminal block 16 and the plug-in terminal block 16, and the supporting of the wiring becomes complicated and the number of wiring man-hours increases. Further, since the electric wire 17 is wired through the opening hole 18, there is a drawback that an accident such as a short circuit is likely to occur due to damage to the electric wire coating.

Therefore, the main object of the present invention is to eliminate the above-mentioned drawbacks and provide an improved collective starter panel so as to eliminate the wiring of the bus bar between the circuit breaker 4 for wiring and the plug-in terminal block 16. It is to be.

[Means for Solving the Problems] This invention is a collective activator panel in which unit units mounted with control devices are stored in a multi-stage stack, and a circuit breaker mounted on the unit unit is provided. In an electrical connection between a bus bar provided in the back surface space of the rear plate of the unit unit body, a plug-in connection terminal that is inserted into and removed from the bus bar, and a stud that is integrally connected to the plug-in connection terminal A leg portion for accommodating a part of the mold terminal conductor and a brim portion provided around the leg portion are integrally formed by a molded insulator, and the leg portion is formed on a rear plate of the unit unit body. The terminal block is equipped with a plug-in terminal block mounted so as to project from the opening to the back side, a molded insulator with a through-hole for accommodating a part of the stud-type terminal conductor of the plug-in terminal block, and a terminal shelf. Power source side terminal conductors and stack The circuit breaker for wiring is integrally connected to the front surface of the plug-in terminal block by connecting one end with the dove type terminal conductor by a terminal screw.

[Operation] In the collective starter board according to the present invention, the bus bar and the plug-in connection terminal are connected and disconnected respectively when the unit unit body is housed in or extracted from the board body. It is possible to make electrical connection by eliminating the electric wire connection with the power supply side terminal.

[Embodiment of the Invention] FIG. 1 is a perspective view showing the relationship between a circuit breaker installed in a unit unit body, a plug-in terminal block and a bus bar in one embodiment of the present invention, and FIG. FIG. 3 is a fragmentary side view showing the electrical connection between a circuit breaker and a bus bar,
The figure is a fragmentary plan view showing the electrical connection between the wiring breaker and the bus bar.

The plug-in terminal block 100 is made of molded insulating material, and the legs 1
Includes 00a and collar portion 100b. The leg portion 100a accommodates a clip-shaped plug-in connection terminal 101 and a part of a stud-type terminal conductor 102 integrally connected to the plug-in connection terminal 101. The collar portion 100b is formed around the upper portion of the leg portion 100a. The leg portion 100a of the plug-in terminal block 100 projects toward the bus bar 21 from the opening hole 120 formed in the rear plate 12 of the unit unit body 3, and the flange portion 100b has the rear plate 1.
Attached to 2.

The tip of the clip-shaped plug-in connection terminal 101 is divided into two contact pieces 101a and 101b. These contact pieces 101a, 10
The 1b is provided with an annular contact spring 103 for applying a contact pressure in a direction in which the bus bar 21 is pressed between a pair of contact pieces 101a, 101a and 101b, 101b facing each other so as to sandwich the bus bar 21. A base end portion of the plug-in connection terminal 101 is integrally connected to a tap hole provided at one end portion of the stud-type terminal conductor 102 by a connection screw 104. A hexagonal portion 102a is provided on the side of the plug-in connection terminal 101 of the stud-type terminal conductor 102,
Rod-shaped conductive parts 10 extending in opposite directions from this part
2b and 102c are integrally formed. The hexagonal part 102a is fitted into a hexagonal fitting hole 100c provided near the flange-shaped part 100b side of the insertion terminal block 100, and serves as a rotation stop.

The closed jacket made of molded insulating material of the circuit breaker 4 for wiring,
A through hole 106 is formed so as to extend from the terminal shelf 105 and the terminal shelf 105 to the back surface side. The through hole 106 accommodates a part of the stud type terminal conductor 102. Attached to the terminal shelf 105 so that the upper surface of the terminal fitting 107 is exposed.
On the upper surface of 07, the power source side terminal conductor of each pole of the wiring breaker 4
108 have been derived.

The protruding portion of the rod-shaped conductive portion 102b of the stud-type terminal conductor 102 is housed in the through-hole 106 of the circuit breaker for wiring from the front surface of the plug-in terminal block 100, and the back surface of the terminal fitting 107 and the stud-type terminal conductor 102 are accommodated.
One end of the stud-type terminal conductor 102 is brought into contact with the terminal metal fitting 107, and the terminal conductor 108 is integrally provided with one end of the stud type terminal conductor 102 by the terminal screw 109 and screwed into the tap hole. Thereby, the circuit breaker 4 for wiring is integrally screw-connected and mounted on the plug-in terminal block 100.

Thus, the bus bar 21 and the power source side terminal conductor 108 of the circuit breaker 4 are electrically connected by the bus bar 21 via the plug-in connection terminal 101 and the stud-type terminal conductor 102. Since each conductive part is stored inside the molded insulator, plug-in terminal block
The opening hole 120 for projecting the leg portion 100a of the unit 100 from the rear plate 12 of the unit unit body 3 to the rear side has the hole edge of the opening hole 120 and the stud-type terminal conductor 1 even if the leg portion 100a has the smallest dimension.
Good insulation with 02 and plug-in connection terminal 10
The insulation between 1 and each layer busbar is also maintained well.

Therefore, the electrical connection or disconnection between the bus bar 21 and the circuit breaker 4 for wiring should be performed safely and easily by inserting / removing the plug connection terminal 101 from the bus bar 21 by storing or extracting the unit unit into the board. You can

[Effects of the Invention] As described above, according to the present invention, the busbar and the plug-in connection terminal are connected and disconnected when the unit unit body is housed in or extracted from the board. The electric wire for connecting between the circuit breaker and the plug-in terminal block can be eliminated, and the number of wiring steps can be eliminated. Moreover, it is possible to easily connect and disconnect the busbar and the circuit breaker for wiring by storing and extracting the unit unit body in the board while maintaining a good insulation state.

[Brief description of drawings]

FIG. 1 is a perspective view showing a relationship between a circuit breaker installed in a unit unit body, a plug-in terminal block and a bus bar according to an embodiment of the present invention. FIG. 2 is a fragmentary side view showing the electrical connection between the wiring breaker and the bus bar. FIG. 3 is a fragmentary plan view showing the electrical connection between the wiring breaker and the busbar. FIG. 4 is a perspective view showing a unit board of a conventional collective starter board. FIG. 5 is a perspective view showing an outline of a unit unit body housed in the unit board body. FIG. 6 is a diagram showing an electric wire connection between a circuit breaker installed in a unit unit body and a bus bar. In the figure, 3 is a unit unit, 4 is a circuit breaker for wiring,
12 is a back plate, 21 is a busbar, 100 is a plug-in terminal block, 100a is a leg part, 100b is a collar-shaped part, 101 is a plug-in connection terminal, 101a and 101b are contact pieces, 103 is a contact spring, 104 is a connection A screw, 105 is a terminal shelf, 106 is a through hole, 107 is a terminal fitting, 108 is a power source side terminal conductor, and 120 is an opening hole.

Claims (1)

(57) [Scope of utility model registration request] 1. A collective activator panel in which unit units to which control devices are mounted are housed in a multi-tiered stack, wherein a wiring breaker mounted to the unit units and a back of the unit units. What is electrically connected with the bus bar provided in the back surface space of a face plate, The plug connection terminal which is inserted / removed with respect to the said bus bar, and the stud type terminal conductor integrally connected with the said plug connection terminal And a collar-shaped portion provided around the leg portion are integrally formed by a molded insulating material, and the leg portion is formed on the back plate of the unit unit body. Plug-in terminal block mounted so as to project from the opening to the back side,
And a terminal insulator on a power source side led out to the terminal shelf and the stud type terminal conductor, the molded insulator having a through hole for accommodating a part of the stud type terminal conductor of the plug-in terminal block, and the terminal shelf. And a circuit breaker integrally connected to the front surface of the plug-in terminal block by connecting one end with a terminal screw, and each of the bus bars when storing or extracting the unit unit body in the panel body. A collective activator panel, characterized in that the plug connection terminal is connected and disconnected.