JPH0463985B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a hot air type electric kotatsu that uses a fan to send hot air into the kotatsu body.

(b) Conventional technology Conventional hot air type electric kotatsu was developed by Jikosho, for example.
As disclosed in Publication No. 46-31430, since the electric heating element is arranged on the outside of the U-shaped support that supports the electric motor, elongated foreign objects from the outside can pass through the protective guard. When inserted, this foreign object directly hits the naked electric heating element and may damage or scratch the electric heating element.

(c) Problems to be Solved by the Invention The purpose of the present invention is to prevent the heater, motor, and fan from being directly hit by foreign objects that enter through the protective guard.

(d) Means for Solving the Problems The present invention provides a structure in which a frame is combined to form a frame space, a wind guide plate provided in the frame space, and a space provided on the lower surface of the wind guide plate. It consists of a support plate attached to the wind guide plate and a protective guard provided on the lower surface of the support plate. A fan is rotatably supported on a shaft protruding from the upper part, and a rod-shaped heater is disposed between the fan and a support plate, and a rod-shaped heater is disposed on the support plate and is located below the heater to supply hot air. A delivery opening for delivery is formed.

(E) Function A support plate attached to the wind guide plate prevents foreign objects from entering through the protective guards on the motor, fan, and heater from being directly hit.

(F) Embodiment 1 is a frame, 2 and 2 are a plurality of support legs fixed to the corners of the frame, and 3 is a flat heater unit, which together form the kotatsu body.
The heater unit is composed of the members described below. 4 is a decorative board provided on the upper surface; 5 is a wind guide plate provided on the lower surface of the decorative board and whose outer periphery is inclined downward; 6 is a plurality of mounting pieces 7a, 7a extending upward at approximately 90-degree intervals; , 7b, 7b and a horizontal mounting portion 8 in the center thereof, the mounting pieces 7a,
7b is fixed. at least two of the mounting pieces
The sheets 7a and 7a are set to have wide dimensions. 9 is a motor fixed to the upper surface of the horizontal mounting part 8;
A fan 10 is pivotally supported on a shaft 30 protruding from the upper part of the fan 10.
drive the rotation. 11, 11 is a ceramic pipe located between the outer side of the fan 10 and the support plate 6, that is, the mounting pieces 7a, 7b, and fixed to the lower surface of the wind guide plate 5. Heater wires (not shown) are installed inside the ceramic pipe. These rod-shaped heaters are arranged in parallel with each other with the fan 10 at the center. Reference numeral 12 denotes a protective guard having an intake part 13 made of a mesh in the center and a discharge part 15 made of a plurality of elongated holes 14, 14 radially bored in the outer part thereof; 16, 16 the frame; The mounting rods 17, 17, 17, 17 of the body 1 are screws for fixing the mounting pieces 7a, 7a, 7b, 7b to the lower surface of the wind guide plate 5.

A delivery opening 31 for sending hot air is formed between the mounting piece 7a and the mounting piece 7b when they are fixed to the wind guide plate 5. Further, the wide mounting pieces 7a, 7a are attached to the heaters 11, 11.
It is arranged to face the central part, which generates a large amount of heat.

According to this configuration, the support plate 6 fixed to the wind guide plate 5 supports the motor 9, and also supports the motor 9, the fan 10, and the heater 1.
1 and 11 from below, these parts can be protected from direct hits from foreign objects such as rods that enter through the protective guard 12.

Moreover, since the support plate 6 is located on the lower surface of the heaters 11, 11, the radiant heat from the heaters 11, 11 is actively blocked by the support plate 6, that is, the mounting pieces 7a, 7b. This prevents the heaters 11, 11 from increasing the local temperature of the protective guard or heating the user's feet. The reason why the heating effect inside the kotatsu body does not decrease even if the radiant heat of the heaters 11 and 11 is actively blocked is because the fan 1
This is because warm air is forced to be sent into the kotatsu body through the delivery opening 31 using the 0.

(G) Effects of the Invention Since the present invention has such a configuration, it is possible to support the motor with the support plate, and it is also possible to prevent foreign objects from entering the motor, fan, and heater from entering directly. . Furthermore, the support plate can also prevent local heating of the user due to radiant heat from the heater. The radiant heat of the heater is radiated from the delivery opening, accelerating the temperature rise below the heater unit, and the local radiant heat of the heater is appropriately blocked by the support plate and made uniform.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of the hot air type electric kotatsu of the present invention, FIG. 2 is a sectional view of the heater unit, FIG. 3 is a partial sectional view of the lower surface of the heater unit, and FIG. 4 is an exploded perspective view. 3... Heater unit, 5... Wind guide plate, 6
...Support plate, 9...Motor, 10...Fan,
11, 11... Heater, 12... Protective guard,
31... Delivery opening.

Claims (1)

[Claims] 1. A beam that is combined to form a frame space, a wind guide plate provided in the frame space, a support plate attached to the wind guide plate with a gap on the lower surface of the wind guide plate, and the support plate. a protective guard provided on the lower surface of the plate, a motor is placed on the upper surface of the support plate within the above-mentioned interval, a fan is pivotally supported on a shaft protruding from the upper part of the motor, and A hot air blower characterized in that a rod-shaped heater is disposed between the fan and the support plate, and a delivery opening is formed in the support plate located below the heater to send out hot air. Type electric kotatsu.