JPH02282655A - Electric hot blower - Google Patents

Abstract

PURPOSE:To securely hold a reserve filter and prevent a temperature rise at the top of the main body by providing a storage space between the heater unit and the electrical equipment, and storing an air cleaner and an identical reserve filter therein. CONSTITUTION:Electrical equipment such as the power switch 5, etc., is disposed at the top of the main body casing 1, and a filter set comprising a dust filter and a deodorizing filter is disposed in the air intake 7 in the rear of the main body casing 1. A storage space 9 for a reserve filter set 6b is disposed between the power switch 5 and the heater unit 2. A prolonged operation causes heat to be transmitted from the heater unit 5 to its surroundings, however, because the reserve filter set 6b serves as heat insulating material, the heat transmission is thereby reduced substantially. Therefore, the top of the main body casing 1 does not become hot, preventing the thermal deterioration of the switch 5, further, as the reserve filter does not require to be stored in a separate location, its accidental disposition or misplacement can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an electric hot air fan with an air cleaning filter.

BACKGROUND OF THE INVENTION In recent years, hot air fans have been used that are equipped with an air purifying filter that can purify and maintain indoor air when heating a room in winter. Conventionally, this type of electric hot air fan uses an air cleaning filter set consisting of a dust filter for dust collection and a deodorizing filter mainly made of activated carbon for deodorizing. After 2 years of use, the deodorizing effect wears off and the filter must be replaced with a new one, which was replaced with a spare filter cent included in the main unit's packaging case.

Problems to be Solved by the Invention However, with such a conventional configuration, when the filter set is replaced after six months to one year of use, the spare filter set is already discarded together with the packaging case. There are many cases where the filter set is lost because the user forgets where it is stored, and the problem is that the spare filter set is not used effectively. In addition, when the heater unit is energized, heat is transferred to the electrical equipment located above the heater unit and the top of the main unit, which tends to shorten the life of the electrical components and cause thermal instability. , a heat insulating material is inserted between the heater unit and the top of the main body case, but this has had the problem of increasing the number of parts and man-hours, resulting in an increase in manufacturing costs.

The present invention solves these problems by making it possible to reliably store the attached filter set, making it usable when necessary, and reducing the temperature rise in the upper part of the main unit without using any heat insulating material. The purpose of the present invention is to provide an electric hot air fan with an air purifying function that can suppress the amount of air that is being generated.

Means to Solve the Problem In order to solve this problem, the present invention provides a heater unit and a blower motor built into the main body case.

A warm air generating device consisting of a fan, an air purifying filter in an inlet opened on the back side of the main body case, an electrical device disposed on the upper part of the main body case, and a space between the heater unit and the electrical device. The air purifier has a storage section provided therein, and the storage section is configured to store a spare filter that is the same as the air purifying filter.

With this configuration, the spare filter set is stored in the housing of the main body case, so it cannot be lost, and the amount of heat transferred from the heater unit to the upper part of the main body case is insulated by the spare filter set. This will result in a significant decline.

EXAMPLE Hereinafter, an example of the present invention will be described based on FIGS. 1 and 2. As shown in the figure, a main body case 1 includes a heater unit 2 as a hot air generator. Air blower motor 3
and a built-in ventilation blade 4. The main body case 1
The upper part of the main body case 71 is equipped with electrical equipment such as an operation switch 6, and the rear suction lower part of the main body case 71 is equipped with a filter set 6a consisting of a dust collecting filter and a deodorizing filter. The front surface of the main body case 1 has a blowout grille 8 that blows out hot air that has passed through the heater unit 2.

A storage section 9 is provided between the operation switch 5 and the heater unit 2, in which a preliminary filter set 6b is stored.

The operation of the electric hot air fan of this embodiment configured as described above will be described below. First, when warm air operation is selected with the operation switch 6, the heater unit 2 and the blower motor 3 are energized, and the rotation of the blower blades 4 causes the airflow sucked from the rear suction lower of the main body case 1 to flow through the filter cellar. ) 6a, the air is collected and deodorized, heated by the heater unit 2, and blown out from the blow-off grill 8 as warm air.

Next, when the operation continues for a long time, heat is transferred from the heater unit 2 to the surrounding area, and also in the direction of the operation switch 5 located above the main body case 1.
A storage section 9 is provided between the and the operation switch 5, and a preliminary filter 6b is usually stored therein, so the preliminary filter 6b acts as a heat insulator, and heat transfer is greatly reduced in this section. reduced. Therefore, the heat from the heater unit 2 is transferred to the operation switch 6 above the main body case 1.
The amount of heat transferred to the vicinity is reduced, and it is possible to prevent the upper part of the main body case 1 from becoming high temperature and to prevent thermal deterioration of the operation switch 6.

As described above, according to this embodiment, the preliminary filter set 6
b is housed in the storage section 9 provided between the heater unit 2 and the operation switch 6, thereby greatly suppressing the heat emitted from the heater unit 2 from being transmitted to the upper part of the main body case 1, and providing a heat insulating material. It is possible to suppress the temperature rise to the inner part and the upper part of the product body, thereby preventing a reduction in the lifespan of the operating element and the inner part and thermal instability. Further, since the spare filter set 6b is housed in the main body case 1, there is no need to store and manage it in a separate location, and it is possible to prevent the filter set from being disposed of or lost.

Effects of the Invention As is clear from the description of the embodiments above, the present invention provides a housing section in which a preliminary filter can be stored between the heater unit of the main body case and the electrical equipment, thereby reducing heat transfer from the heater unit. This is an excellent electrical system that can suppress the temperature rise of the electrical equipment and the top of the main body case without installing a heat insulator that is blocked by a spare filter, and also prevents the loss of the spare filter. This realizes a hot air fan.

[Brief explanation of drawings]

Fig. 1 is a sectional view of an electric hot air fan according to an embodiment of the present invention;
The figure is a perspective view of the same. 1...Body case, 2...Heater unit 1.3...Blower motor, 4...Blower blade, 5...Operation switch ( electrical equipment), 6a
...Filtercera 1-c air si filter), 6
b... Preliminary filter set (preliminary filter), 7.
...Suction port, 9...Storage section. Name of agent: Patent attorney Shigetaka Kurino and 1 other person1-
11 Honzumi, 1-su 2-11 Bitayu 21-Y 3-tJi for 7-Dato Crying Banmushi Cυ--・+41F0Leda'-J shi (Go Bei) it
L shoes 7---II soaking 80

Claims (1)

[Claims] A hot air generator consisting of a heater unit, a blower motor, and a fan built into the main body case, an air purifying filter at the suction port opened on the back side of the main body case, and an electrical equipment arranged on the upper part of the main body case. and a storage section provided between the heater unit and the electrical equipment, and the storage section stores a preliminary filter that is the same as the air purifying filter.