JPS6349645Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a hot air kotatsu that discharges hot air into the kotatsu.

(b) Conventional technology In conventional hot air kotatsu, the motor is mounted on the top of the mounting plate and electric components such as heaters and thermostats are mounted on the bottom of the mounting plate, so a through hole is provided in the mounting plate and the motor is connected to the hole. It is necessary to insert a lead wire. Further, the mounting plate is made of a metal plate in order to prevent damage due to thermal influence from the heater and to support heavy components such as the motor. As a result, the inner periphery of the through hole provided in the mounting plate becomes a sharp edge, and the sheathing of the lead wire inserted therein may come into contact with the sharp edge and be damaged. If the lead wire sheathing is damaged, a dangerous situation such as a short circuit and electric shock to the user will occur.

(c) Purpose of the invention The present invention is capable of removing the covering of the lead wire by inserting the protruding part integrally provided on the resin wind barrel into the through hole of the mounting plate and inserting the lead wire into the introduction hole of the protruding part. The purpose is to provide a hot air kotatsu that can be used safely and prevents damage.

(d) Structure of the invention The present invention includes a mounting metal plate with a through hole in a part, a fan and a heater inside, an introduction hole, and a cylindrical protrusion to be inserted into the through hole. The fan is comprised of a wind cylinder made of resin, a motor for rotating the fan, and a lead wire connected to the motor or the heater and inserted into the introduction hole.

(e) Embodiment An embodiment of the present invention will be described based on FIGS. 1 to 3. Reference numeral 1 denotes a kotatsu main body in which a warm air unit, which will be described later, is installed between a top plate 2 and a lower plate 5 provided with an intake hole 3 and a hot air outlet 4, and has leg parts 6, 6.

Next, the warm air unit 7 will be explained. Reference numeral 8 denotes a rectangular mounting metal plate with a through hole 9 provided in a part thereof, a motor mounting plate 10 having a square cross section is fixed to the upper surface, and a suction hole 11 for sucking air is provided below the motor mounting plate. There is. Reference numeral 12 denotes a blowing portion 16 having a circular blowing portion 13, a cylindrical ventilation portion 14, and a blowing outlet 15.
and a cylindrical protrusion 18 having an introduction hole 17 on one side of the air blower 13 are integrally formed, the protrusion 18 protrudes downward from the lower surface of the wind barrel 12. Since it is inserted into the through hole 9 of the mounting metal plate 8, the position of the wind barrel 12 can be easily determined during the process of fixing the wind barrel 12 to the mounting plate 8. 19 is the motor mounting plate 1
a motor having a shaft 20 mounted on the top of the motor;
Reference numeral 1 denotes a fan installed in the ventilation section 13 and fixed to the shaft 20, which is rotated by the motor 19 and blows air toward the ventilation section 14. 22 is a thermistor heater fixed below the ventilation section 14;
The cold air sent from the fan is changed into warm air and sent to the blowing section 16. Reference numeral 23 denotes a power supply connection portion fixed to one side of the mounting metal plate 8, and connection terminals 24, 24
has. Reference numeral 25 denotes a temperature adjustment section adjacent to the power supply connection section 23 and fixed to the mounting metal plate 8, which has a temperature adjustment dial 26 and a thermostat 27, and can adjust the amount of power supplied to the thermistor heater 22. 28 is a terminal located near the protrusion 18 and fixed to the upper surface of the mounting metal plate 8; , a lead wire 30, the other end of which is connected to the terminal 28;
is inserted into the introduction hole 17 of the terminal 2, and one end is inserted into the introduction hole 17 of the terminal 2.
8 and the other end connected to the motor 19, and the portion of the lead wire located inside the introduction hole 17 is protected by the protrusion 18 and is connected to the through hole 9 of the mounting metal plate 8. It does not come into contact with the inner circumference of the

When power is supplied to the power supply connection part 23, the fan 21 rotates, and the air inside the kotatsu body 1 is sucked into the hot air unit 7 along the path indicated by arrow A in FIG. The air is converted into warm air by the thermistor heater 22 and is discharged into the kotatsu body 1 along the path indicated by arrow B.

(f) Effects of the invention The present invention is a resin-made wind barrel that is integrally equipped with a mounting metal plate with a through hole in a part, and a cylindrical protrusion that houses a fan and a heater and has an introduction hole on one side. and a motor for rotating the fan, and a lead wire connected to the motor or the heater and inserted through the upper and lower surfaces of the mounting metal plate, wherein the protrusion is inserted into the through hole and the lead wire is connected to the motor or the heater and inserted through the upper and lower surfaces of the mounting metal plate. Since the wire is inserted into the introduction hole, the sheathing of the lead wire will not be damaged, and dangerous situations such as short circuit and electric shock to the user will be eliminated. Further, there is an effect that the position of the wind barrel can be easily determined in the process of fixing the wind barrel to the mounting metal plate.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of the hot air kotatsu of the present invention, FIG. 2 is a bottom view of the hot air unit, and FIG. 3 is a sectional view of the main parts of the hot air unit. 8...Mounting metal plate, 9...Through hole, 16...Wind barrel, 17...Introduction hole, 18...Protrusion, 19...
Motor, 21...Fan, 22...Heater, 30
……Lead.

Claims (1)

[Scope of utility model registration request] A mounting metal plate with a through hole in a part, a resin wind body integrally equipped with a cylindrical protrusion that houses a fan and a heater and has an introduction hole on one side, and a motor that rotates the fan. , and a lead wire connected to the motor or the heater and inserted through the upper and lower surfaces of the mounting metal plate, wherein the protrusion is inserted into the through hole and the lead wire is inserted into the introduction hole. A warm air kotatsu featuring