JPH0670406U - Auxiliary relay unit for distribution panel with agreement size - Google Patents

Abstract

(57) [Summary] [Purpose] To simplify and streamline the production of distribution boards. [Structure] Inside the housing 2 molded in the same external shape as that of the agreement type wiring circuit breaker for the power distribution board, each component CX, TX, which constitutes an auxiliary relay circuit for the distribution board, D, F, S
The auxiliary relay circuit section is unitized as a single component, and is closely mounted on the agreement type wiring breaker for the light distribution board.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an auxiliary relay unit for a distribution board, which is mounted on the distribution board and is used for turning on and off an electromagnetic switch or the like.

[0002]

[Prior art]

 In recent years, distribution boards have not only been equipped with distribution board circuit breakers, but have also been installed with a mixture of auxiliary relay circuit sections that are relay circuits for controlling, for example, electromagnetic switches for motor operation. Is starting to appear.

FIG. 4 is a diagram showing an example of an auxiliary relay circuit and related circuits. The auxiliary relay circuit 21 includes a closing relay CX, a trip (disconnection) relay TX, a counter electromotive force preventing diode D, and an operation mode switching switch S for selecting two operation modes of "automatic" and "test". An "ON" signal by the ON switch I for turning ON / OFF the motor 23, etc. as necessary from the automatic control device 22 using a computer F etc. Upon receiving the "OFF" signal from the switch O, the relay switch controls the motor operating electromagnetic switch MX of the motor control circuit 24.

FIG. 5 is a diagram showing a configuration of a conventional distribution board in which a collective type circuit breaker for a light distribution board (hereinafter, simply referred to as a collective breaker) is used. As shown in FIG. 5, a board 26 of the distribution board 25 is provided with a breaker mounting rail for a contract type wiring for a light distribution board (hereinafter, abbreviated as a contract type breaker mounting rail) 27. A required number of type breakers 28 are mounted on the agreement type breaker mounting rail 27.

Then, as shown in FIG. 5, when it is necessary to mount the auxiliary relay circuit 21 on the distribution board 25, the auxiliary relay circuit 21 of FIG. 4 is mounted on the substrate 26 of the distribution board 25. Each of the above-mentioned constituent parts is individually assembled. In FIG. 5, the operation mode changeover switch S is not shown, and a state in which the mounting frame B of the operation mode changeover switch S is attached to the substrate 26 is shown.

An opening 30 for operating the operation mode changeover switch S is cut out in the protective plate 29. The opening 31 is a cutout for operating the agreement breaker 28, and the opening 32 is a cutout for operating the main breaker 33.

[0007]

[Problems to be solved by the device]

 As described above, when it is necessary to mount the auxiliary relay circuit 21 on the distribution board 25, conventionally, each component constituting the auxiliary relay circuit 21 can be individually mounted on the board 26 of the distribution board 25. As a result, the number of parts to be assembled to the board 26 is inevitably increased, and it takes time and effort to assemble each part to the board 26.

Further, as shown in FIG. 5, it is necessary to open an opening 30 for the operation mode switching switch S in the protection plate 29 on the front surface of the distribution board 25, but avoiding misalignment or the like related to this. This requires considerable consideration in processing, which causes considerable manufacturing complexity.

It is an object of the present invention to provide an auxiliary relay unit for a distribution board of a contract type, which can solve the above-mentioned problems and can simplify and improve the efficiency of manufacturing the distribution board. .

[0010]

[Means for Solving the Problems]

 The present invention accommodates and mounts each component that forms an auxiliary relay circuit for a distribution board inside a casing whose external dimensions are similar to those of the agreement type wiring breaker for a light distribution board. In this way, an auxiliary relay unit for distribution board is formed.

[0011]

[Action]

 In the present invention, the auxiliary relay circuit section for the distribution board is unitized as a single part, and the agreement type wiring breaker for the lighting distribution board is installed on the rail I try to implement them closely.

[0012]

【Example】

 1A and 1B are views showing an auxiliary relay unit for a distribution board of a contract type, which is an embodiment of the present invention. FIG. 1A is a top view and FIG. FIG. 9B is a sectional view taken along line AA ′ in FIG. In addition, FIG. 2 is a diagram showing an example of the circuit of the auxiliary relay unit for the distribution board, which has the same contract size.

The auxiliary relay unit 1 for the distribution board of the agreement type size is mounted on the substrate 3 fixed inside the insulative housing 2 formed by molding a resin material or the like. A closing relay CX, a tripping (cutting) relay TX, a counter electromotive force prevention diode D that form an auxiliary relay circuit as shown in Fig. 6 are mounted, and the operation mode changeover switch S and main control circuit fuse F are also mounted. It is attached to the nameplate 4 mounted on top and is formed as one single piece of agreement size.

As shown in the cross-sectional view of FIG. 1B, the auxiliary relay unit 1 for the distribution board of the contract type has the external dimensions defined by the so-called JISC8370. Molded in the same way as the external dimensions of the circuit breaker (contractor type circuit breaker) 14 (Fig. 3), and in the vicinity of the bottom of the circuit breaker mounting rail (contractor type circuit breaker mounting rail) A notch 5 is provided which can be attached to 12 (FIG. 3).

In FIG. 2, terminals are common (usually negative power supply) terminals, terminals are “input” signal receiving terminals, terminals are “off” signal receiving terminals, terminals are operating power supply terminals, terminals are “off” terminals, and The terminals are “on” terminals, and these terminals to terminals are arranged as terminals 6 on the side surface of the housing 2 of the auxiliary relay unit 1 for a distribution board, as shown in FIG. The collar portion 7 on the side surface of the housing 2 is provided to protect the terminal 6.

A lid 8 is detachably attached to the top of the housing 2 of the auxiliary relay unit 1 for the distribution board. Note that FIG. 1A is shown with the lid portion 8 removed for convenience of explanation.

FIG. 3 is a view showing a distribution board on which the auxiliary relay unit 1 for distribution board having a contract type is mounted.

On the board 10 of the distribution board 9, each component constituting the distribution board 9, such as a main circuit breaker 11, a consensus circuit breaker mounting rail 12 arranged in two rows, a terminal board 13, and the like, are mounted. A required number of agreement type circuit breakers 14 are attached to the agreement type circuit breaker mounting rail 12.

The agreement type circuit breaker mounting rail 12 is expected to have a space for mounting the agreement type sized auxiliary relay unit 1 for the distribution board, which is formed as a single component in another preceding step. As shown in FIG. 3, the auxiliary relay unit 1 for the distribution board having the agreement type size is mounted on the agreement type circuit breaker mounting rail 12 in close proximity to the required number of agreement type circuit breakers 14.

An opening 16 for operating the main circuit breaker 11 is provided in the protection plate 15 on the front surface of the distribution board 9, and an operation mode switching of the agreement type circuit breaker 14 and the auxiliary relay unit 1 for the distribution board. Two openings 17 for operating the switch S are cut out.

As described above, the auxiliary relay circuit unit for controlling the motor operating electromagnetic switch for turning on and off the motor is automatically installed in the distribution board 9 from the automatic control device using a computer or the like. In order to support the case of mixed installation, a closing relay CX, a tripping (cutting) relay TX, a back electromotive force prevention diode D, an operation mode changeover switch S, and a main control circuit that compose an auxiliary relay circuit. Each part of the Fuse F is unitized into a housing 2 with the same external dimensions as the collective type circuit breaker (contractor type circuit breaker) 14 for electric light distribution board specified in JISC83 70, and as a single component. By configuring, the mounting space of the auxiliary relay circuit section in the distribution board 9 can be saved, the distribution board 9 can be downsized, and the auxiliary relay circuit section can be installed in a separate line in the previous process in advance. At 1 Since it can be formed as a single component, it is possible to reduce the number of assembly parts of the distribution board 9, that is, the number of assembly steps, and it is possible to realize an excellent economic effect in the manufacturing work of the distribution board 9 as a whole.

[0022]

[Effect of device]

 As described above, according to the present invention, the auxiliary relay circuit for the distribution board is provided inside the casing whose external dimensions are the same as those of the agreement type wiring breaker for the electric distribution board. It is formed by accommodating and mounting each component, and thus the auxiliary relay circuit section is unitized as a single unit and mounted closely to the agreement type wiring breaker for the light distribution board. By doing so, the manufacturing of the distribution board can be simplified and made more efficient.

[Brief description of drawings]

FIG. 1 is a view showing an auxiliary relay unit for a distribution board of a contract type, which is an embodiment of the present invention.

FIG. 2 is a diagram showing, as an example, a circuit of an auxiliary relay unit for a distribution board, which is also a contract type.

FIG. 3 is a diagram showing a distribution board on which an auxiliary relay unit for distribution board of the same contract size is mounted.

FIG. 4 is a diagram showing an example of a control circuit and related circuits.

FIG. 5 is a diagram showing a conventional distribution board.

[Explanation of symbols]

1 Auxiliary relay unit for distribution board of agreement type size 2 Housing 3 Board 4 Name plate 5 Notch 6 Terminal 7 Collar part 8 Lid part 9 Distribution board 10 Board 11 Main circuit breaker 12 Electric light distribution board agreement type wiring Circuit breaker mounting rail (Contractor type circuit breaker mounting rail) 13 Terminal plate 14 Contract type wiring circuit breaker for light distribution board (contract type circuit breaker) 15 Protective plate 16 Opening 17 Opening CX closing relay D Reverse voltage prevention diode F Fuse S Operation mode selection switch TX Tripping (cutting) relay

Claims (1)

[Scope of utility model registration request] 1. A component which forms an auxiliary relay circuit for a distribution board is housed and mounted in a housing whose external dimensions are formed in a shape similar to that of a collective type circuit breaker for a distribution board for a light distribution board. An auxiliary relay unit for a distribution panel of a contract size, which is characterized by being formed as described above.