JPH0614833U - Ventilation unit for boxes - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] To make it possible to easily construct an intake or exhaust device with a minimum number of members in a box ventilation device such as a distribution box. [Composition] The louver 3, the fan 4, and the filter 5 are formed so as to be commonly used by mutual screw fitting, and the intake louver and the exhaust fan are easily configured by appropriately combining them according to the purpose of use. Makes it easy to attach to the box.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a box ventilation unit that can be used as an intake louver or an exhaust fan when combined to continuously cool a box such as a distribution box that requires heat dissipation.

[0002]

[Prior art]

 Conventionally, a ventilation device has been mainly used for cooling a control device that generates heat such as an inverter or a sequencer, or a distribution box or the like that stores a stabilizer or a transformer of a lighting fixture for discharge. As shown in FIG. 5, they are provided with an intake port 12 for introducing outside air to the lower part of the side plate 11 of the box body 10, and an exhaust port 13 for exhausting air inside the box body on the upper side plate, respectively. The axial fan 14 is continuously operated to forcibly send the air inside the box body 10 to the outside to radiate heat. As shown in FIGS. 6 and 7, the intake port 12 is provided with a square louver 15 or a round louver 16 made of metal or synthetic resin, and the square louver 15 is provided in the box body 10 according to its shape. The round louver 16 was screwed into the ring 20 on the back of the side plate 11 by being fastened to the hole formed in the side plate 11 with bolts and nuts 18 and 19. As shown in FIG. 8, the exhaust port 13 is provided with an axial flow fan 14 made of metal or synthetic resin, and a fin guard 21 for preventing foreign matter is combined with the surface of the axial flow fan 14. , 16 were fixed to the holes 22 formed in the side plate 11 with the screw 23 together with the fin guard 21.

[0003]

[Problems to be solved by the device]

 The conventional ventilator described above is inefficient and inefficient because the side plates of the box are perforated and fastened with screws, and the components of the ventilator are dedicated to intake and exhaust, respectively. Since there is no commonality between the two, the number of parts is large, which makes parts management difficult and causes high costs.

[0004]

[Means for Solving the Problems]

 In view of the above-mentioned problems of the prior art, the present invention intends to make the constituent members into a unit so that the constituent members can be commonly used for intake or exhaust with a minimum combination of constituent parts, and facilitates the assembling work. In addition, the present invention provides a ventilation unit for a box body that enables cost reduction. Its structure is a louver member in which a first fitting screw is engraved on an annular body at the rear of the main body and an annular ring at the front of the main body. A fan member in which a second fitting screw to be screwed into the first fitting screw is engraved on the body, and a fitting screw having the same shape and size as the first fitting screw is engraved on the annular body at the rear of the main body; A ventilation unit for a box body, which comprises a filter member having a second fitting screw screwed into the first fitting screw, which is engraved on an annular body at the front of the main body.

[0005]

[Action]

 The air intake louver can be easily formed by sandwiching the box plate and screwing the first fitting screw of the rear annular body of the louver member and the second fitting screw of the front annular body of the filter member. Be done. Also, sandwiching the plate of the box body, the first fitting screw of the rear annular body of the louver member and the second fitting screw of the front annular body of the fan member are screwed together, and further the rear portion of the main body of the fan unit is When the first fitting screw and the second screw fitting of the front annular body of the filter member are screwed together, the exhaust fan is easily formed.

[0006]

【Example】

 Hereinafter, an embodiment of a box ventilation unit according to the present invention will be described with reference to the accompanying drawings. In FIG. 1, reference numeral 1 is a side plate of the box, and 2 is a mounting hole for the ventilation unit. The louver unit 3 as a louver member is a round louver made of synthetic resin, the surface of which is a net shape, and the inner wall is engraved with a female screw 3a as a first fitting screw (see FIG. 3). Has been done. Further, the fan unit 4 as a fan member is a round shape made of synthetic resin, and an annular body 4b is projectingly provided on the front part of the main body 4a, and an outer thread of the annular body 4b is screwed to the female screw 3a. 4c is engraved, and a female screw 4d (see FIG. 3) having the same shape and size as the female screw 3a is engraved on the inner wall of the annular body at the rear portion of the main body 4a. A fan 4e (see FIG. 3) is built in the main body 4a, and a connection code 4f is attached to the outside of the main body 4a. The filter unit 5 as a filter member is a round shape made of synthetic resin, and an annular body 5b is projectingly provided on the front part of the main body 5a, and the outer periphery of the annular body 5b is screwed to the female screw 3a or the female screw 4d. A male screw 5c is engraved, and a filter 5d (see FIG. 3) is provided on the rear portion of the main body 5a. The above three components of the louver unit 3, the fan unit 4 and the filter unit 5 constitute a box ventilation unit. A cylindrical rainproof hood 6 having an opening on one side is formed so that it can be attached to the louver unit 3, and is provided for outdoor use.

The box ventilation unit configured as described above is attached and used as follows depending on the application. That is, when the intake louver is formed and attached to the box body, as shown in FIG. 2, the louver unit 3 is inserted into the attachment hole 2 of the side plate 1, and the female screw 3a of the louver unit 5 is inserted into the female screw 3a. It is enough to screw. When forming an exhaust fan and attaching it to the box, insert the louver unit 3 into the attachment hole 2 of the side plate 1 and attach the male screw of the fan unit 4 to the female screw 3a as shown in FIG. 4c may be screwed together, and the female screw 4d of the fan unit 4 may be screwed with the male screw 5c of the filter unit 5. In this way, the installation work can be done simply and efficiently because it is only necessary to fit the screws. When the box with the exhaust fan is installed outdoors, as shown in FIG. 4, the waterproof packing 7 is sandwiched between the side plate 1 and the rainproof hood 6 to prevent the louver unit 3 from being damaged. The rain hood 6 is attached, and the male screw 4c of the fan unit 4 is screwed into the female screw 3 on the rear inner wall of the louver unit 3 protruding to the rear of the rain hood 6 as described above, and then assembled in the same manner as described above. Just go. The exhaust fan shown in FIG. 3 can be used as an intake fan if it is attached to the inside and outside of the side plate 1 oppositely.

In the above embodiment, female screws as first fitting screws are provided at the rear part of the louver unit and the rear part of the fan unit, and male screws as second fitting screws are provided at the front part of the fan unit and the front part of the filter unit. Although the screws are engraved and screwed together, on the contrary, male screws as the second fitting screws are attached to the rear part of the louver unit and the rear part of the fan unit, and the front part of the fan unit and the filter unit. A female screw as a first fitting screw may be engraved on the front part and screwed together.

[0009]

[Effect of device]

 As described above, the box ventilation unit according to the present invention comprises a louver member, a fan member, and a filter member, and is a so-called unitized unit that can be appropriately combined and shared by screw fitting. Therefore, it is possible to meet various uses such as intake, exhaust, indoor or outdoor with a small number of constituent members. However, the assembly work is simple and can be carried out efficiently, and there are merits in parts management, and overall cost reduction is possible, and its practical value is great.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an embodiment of a box ventilation unit according to the present invention.

FIG. 2 is a longitudinal sectional view of an intake louver formed by combining the box ventilation units.

FIG. 3 is a vertical cross-sectional view of an exhaust fan formed by combining the box ventilation units.

FIG. 4 is a vertical cross-sectional view of an exhaust fan with a rainproof hood attached thereto.

FIG. 5 is a perspective view of a distribution box equipped with a conventional ventilation device.

FIG. 6 is an exploded perspective view of a conventional intake rectangular louver attached to an intake port.

FIG. 7 is an exploded perspective view of a conventional intake round louver attached to an intake port.

FIG. 8 is an exploded perspective view of a conventional exhaust fan attached to an exhaust port.

[Explanation of symbols]

1 ... Side plate, 2 ... Mounting hole, 3 ... Louver unit, 3a ... Female screw, 4 ... Fan unit, 4a ...
Main body, 4b ··· ring body, 4c ·· male screw, 4d ·· female screw, 4e · · fan, 4f · · connection cord, 5 · · filter unit, 5a · · main body, 5b · · annular ring, 5c
..Male screws, 5d ... Filters, 6 ... Rainproof hoods,
7. Waterproof packing.

Claims (1)

[Scope of utility model registration request] A louver member having a first fitting screw engraved on an annular body at the rear of the main body, a second fitting screw screwed to the first fitting screw on the annular body at the front of the main body, and a circle at the rear of the main body. A fan member in which a fitting screw having the same shape and dimensions as the first fitting screw is engraved on the ring body, and a second fitting screw that is screwed into the first fitting screw on the annular body at the front of the main body. Ventilation unit for boxes, which consists of a filter member engraved with.