JPH0810771Y2 - Control box - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a control box for a refrigeration system for a marine container.

[Prior Art] An example of a conventional control box is shown in FIGS.
It is shown in the figure. The box body 21 is divided into an upper stage side and a lower stage side by a partition plate 22, a substrate 23 covering the front surface on the upper stage side, and a substrate 24 covering the front surface on the lower stage side.
Are connected to the box body 21 via hinges 25 fixed to the lower ends thereof so as to be openable and closable. The upper substrate 23 has two layers, and a controller 26 is attached to each layer. Further, on the rear surface of the lower side substrate 24 and the back plate 27, accessory devices 28 such as contactors, relays, changeover switches and other controllers are attached. Thus, the control box is downsized. In the figure, 29 is a substrate
A thumbscrew for fixing 23 and 24 to the box body 21.

[Problems to be solved by the device]

In the above conventional control box, since the box body 21 is divided into the upper side and the lower side, the front surface area on the upper side is limited. Alternatively, the number of layers must be increased, which increases the cost and makes it difficult to inspect the controller 26. Further, there has been a problem such as a decrease in reliability such as a contact failure due to an increase in the number of connections between boards (for example, connectors).

Further, in order to inspect the accessory device 28 on the lower side (operation check, current measurement, etc.), it is necessary to open the board 24 each time. The wiring connecting the accessory devices 28 attached to the plate 27 becomes long and complicated, and the cost is increased.

[Means for solving the problem]

 The present invention takes the following measures to solve the above problems.

That is, as a control box, a box-shaped box body having an open surface at one end, a board that is hingedly attached to the side surface of the open part of the box body and covers a part of the open surface, and a back surface of the board. Attached to the controller, the controller attached to the inside of the surface of the box body facing the board that does not face the board, the accessory of the controller requiring inspection, and the inside of the box body, Provide the accessory device of the above controller.

[Action]

By the above means, the board to which the controller is attached can be attached to the open surface portion of the box body with a large area required for the controller. Further, since the accessory device of the controller that needs inspection is exposed to the outside, the operation check and the like are performed without opening the substrate.

As described above, a control box that is small and easy to check can be obtained.

〔Example〕

An embodiment of the present invention will be described with reference to FIGS.
1 is a front view of the control box, and FIG. 2 is a first view.
It is a II-II sectional view of a figure.

In FIG. 1, a box-shaped box body 1 having one end open is provided. The board 2 is attached to one side surface of the open portion of the box body 1 so as to be openable and closable by a hinge 3, and is fixed by a thumbscrew 4 via a screw shaft attached to the other side surface. Further, the size of the substrate 2 is smaller than the size of the open end surface of the box body 1 by a predetermined amount, and covers the upper half of the box body 1.

The controller 5 is attached to the back surface of the substrate 2 in a single layer. On the inner surface of the closed end surface 6 of the box body 1 facing the board 2, an accessory device 7a requiring inspection of the controller 5 is attached to a portion not facing the board 2. An accessory device 7b of the controller 5 is attached to the inner surface of the box body 1.

In the above configuration, the board 2 can have a large area on the open end surface of the box body 1, and as a result, when mounting a required amount of the controller 5, the board 2 does not need to be mounted in a number of layers, and the controller 2 can be mounted. The inspection work of 5 can be easily performed. Further accessories 7
Wiring (not shown) for connecting a and 7b to each other is shortened, so that wiring can be done in an orderly manner.

Further, since the accessory 7a requiring inspection is exposed to the outside and attached to the closed end surface 6, the operation check or the like can be performed without opening the substrate 2.

[Effect of device]

As described above, the control box of the present invention covers a part of the open end surface of the box body, and the controller is attached to the back surface of the board that is openably and closably attached. Since other accessory devices are attached to the inner surface of the box body on the surface that does not face the board, the board can have a large area on the front surface of the box body. Since it is not necessary to mount a substrate by forming a large number of layers as in the conventional case, the controller can be easily inspected. Further, since the connection wiring between the accessory devices is shortened, the wiring can be ordered and the cost can be reduced. Further, since the operation check work of the auxiliary equipment which needs inspection can be performed from the outside, the work time can be shortened.

[Brief description of drawings]

1 is a front view of a control box according to an embodiment of the present invention, FIG. 2 is a sectional view taken along the line II-II of FIG. 1 of the same embodiment, and FIG. 3 is a front view of a conventional control box.
FIG. 4 is a sectional view taken along the line IV-IV in FIG. 3 of the prior art. 1 ... Box body, 2 ... Board, 3 ... Hinge, 4 ...
… Thumbscrew, 5 …… Controller, 6 …… Closed end face, 7a ……
Accessories that require inspection, 7b ... Auxiliary equipment.

Claims (1)

[Scope of utility model registration request] 1. A box-shaped box body having an open surface at one end, a hinge opening / closing type attached to the side surface of the open portion of the box body, and a part of the open surface, and a back surface of the board. The controller to be attached, an accessory of the controller that needs to be inspected and is attached to a portion of the inner surface of the box body facing the board that does not face the board, and the accessory attached to the inner surface of the box body. A control box comprising a controller accessory device.