JPH0112116Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The present invention relates to a ventilation fan installed for air conditioning purposes in offices, conference rooms, hospitals, etc.

Configuration of conventional example and its problems As shown in FIGS. 1 to 4, a conventional ventilation fan has an outside air intake port 102 and an indoor air discharge port 103 on one side outdoors, and an outside air outlet 103 on the other side indoors. A box-shaped ventilation fan body 101 provided with an outlet 104 and an indoor air suction port 105, a heat exchanger 106 provided within the body 101, and a ventilation fan body 101 disposed to exhaust indoor air to the outdoors via the heat exchanger 106. an exhaust blower 107 installed, an intake blower 108 installed to draw outside air into the room via the heat exchanger 106, and a duct connection installed at the discharge ports 103, 104 and the intake ports 102, 105. It is composed of a flange 109, a filter storage section 110 provided inside the main body of the suction ports 102 and 105, and an inspection port 112 for taking out the filter 111 when cleaning the filter 111. In this conventional ventilation fan, the filter 111 is housed inside the suction ports 102 and 105 of the main body 101, so when cleaning the filter 111 for each engine, the inspection port 112 is opened and the filter 111 is cleaned.
11 had to be taken out, making the work extremely difficult. Furthermore, there is a drawback that air may flow into the main body 101 from the outside due to a work error such as forgetting to close the inspection port 112, and the ventilation fan may not be able to fully demonstrate its original performance.

Purpose of the invention The present invention aims to eliminate these conventional drawbacks, and is to improve work efficiency by making it easier to clean the filter from the outside of the ventilation fan body, and to remove the opening in the ventilation fan body to take out the filter. The purpose is to prevent a decrease in ventilation capacity due to work errors such as forgetting to close the opening, and to reduce costs.

Structure of the invention In order to achieve the above object, the ventilation fan according to the invention has a suction port and a discharge port, and a box-shaped ventilation fan body to which a duct can be connected to the suction port and the discharge port. A filter storage part is provided between the duct connecting member and the ventilation fan main body, into which a filter can be removably inserted from the outside of the ventilation fan.

DESCRIPTION OF EMBODIMENTS Examples of the present invention will be described below with reference to FIGS. 5 to 8. Reference numeral 1 denotes a box-shaped ventilation fan body, in which an outside air inlet 2 and an indoor air outlet 3 are provided on one side outdoors, and an outside air outlet 4 and an indoor air inlet 5 are provided on the other side indoors. It is being 6 is a heat exchanger provided in the main body 1; 7 is an exhaust blower provided to exhaust indoor air to the outside through the heat exchanger 6; 8 is an exhaust blower that exhausts outside air into the room via the heat exchanger 6. This is an intake blower installed to take in air. Reference numeral 9 denotes a duct connecting flange provided at the discharge ports 3 and 4. Reference numeral 10 denotes a duct connection port provided between the outside air suction port 2 and the indoor air suction port 5, in which a filter housing portion 11 and a flange portion (duct connection member) 12 for duct connection are integrally formed. Reference numeral 13 denotes a filter to be stored in the filter storage part 11, and a gasket 14 is provided at one end to prevent air from leaking when the filter is stored.
is attached. 15 is a handle provided on the filter.

In the above configuration, when the filter 13 becomes clogged with dust, etc., the filter 13 is pulled out from the filter storage part 11 by the handle 15, and the filter 13 is cleaned to remove the dust and the like. Next, when installing the filter 13, store the filter 13 in the filter storage section, and then
A gasket 14 provided at one end of the filter storage section 3 is attached in close contact with the entrance of the filter storage section 11 to prevent air from leaking. As described above, by using the duct connection port 10 in which the filter storage part 11 and the duct connection flange part 12 are integrally formed, the filter 13 can be simply pulled out from the filter storage part 11 after installing the ventilation fan main body 1. This filter 13 can be easily cleaned, and the cleaning work efficiency can be greatly improved. Further, it is no longer necessary to provide an opening in the ventilation fan body 1 to take out the filter 13, which prevents a decrease in ventilation capacity due to work errors and at the same time reduces costs.

Effects of the Invention As is clear from the above explanation, according to the present invention, cleaning can be done easily by simply pulling out the filter, and it has the effect of greatly improving the workability of cleaning. In addition, there is no need to provide an opening in the ventilation fan body to take out the filter, which has the effect of preventing a decrease in ventilation capacity due to work errors and reducing costs.

[Brief explanation of drawings]

Fig. 1 is a plan view of a conventional ventilation fan, Fig. 2 is a front view of the same ventilation fan, Fig. 3 is a plan view of the duct connection flange and filter storage part of the ventilation fan, Fig. 4 is a front view of the same, and Fig. 5 is a plan view of the ventilation fan. The figure is a plan view of one embodiment of the ventilation fan according to the present invention, FIG. 6 is a front view of the same ventilation fan, and FIG.
The figure is a plan view of the duct connection port of the ventilation fan, and FIG. 8 is a front view of the same. 1... Ventilation fan body, 2, 5... Suction port, 3, 4
...Discharge port, 9...Flange for duct connection, 11
... Filter storage section, 12 ... Flange section (duct connection member), 13 ... Filter.

Claims (1)

[Scope of utility model registration request] A box-shaped ventilation fan main body is provided which has an inlet and an outlet, and a duct can be connected to the inlet and the outlet, and a filter is inserted from outside the ventilation fan between the duct connecting member provided at the inlet and the ventilation fan main body. A ventilation fan with a filter storage section that can be removably inserted.