JPS5816146A - Electric "kotatsu" in frame-work - Google Patents

Abstract

PURPOSE:To improve the usableness of ''kotatsu'' by a method wherein the controlling circuit of a heating elenent and the operating part for instruction are separately provided and the instruction from the operating part to the controlling part is given by way of wireless signal. CONSTITUTION:A transmitting part A containing an oscillator, batteries and a transmitting antenna is arranged within a table board 1 and the operating parts 2 are arranged at a plurality of positions (for example, at four positions) on the sides of the table board 1. The heating element 6 is provided at the center beneath the setting frame 4 of the framed ''kotatsu'' covered with a coverlet 3 placed under the table board 1. The receiving part B containing a receiving antenna, an amplifier, a frequency-to-voltage converter, a detector, a temperature sensor and the controlling circuit of the heating element 6 is arranged near the heating element 6. The frequency of the oscillator in the transmitting part A is changed by operating the operating part 2.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electric Yagura Kotatsu, and its main purpose is to separately provide an operating section for giving instructions to a control circuit for a heating element and a control circuit for the heating element, and to The purpose is to improve usability by wirelessly giving instructions to the control circuit.

Conventionally, the knobs and other controls for adjusting the temperature of electric kotatsu kotatsu were installed near the heating element inside the kotatsu, and in order to adjust the temperature, it was necessary to roll up the kotatsu futon and look inside. .

In addition, if the operation section is located in one place, it is not easy to use.

Incidentally, electric Yagura Kotatsu tables have been devised in which an operating section is provided on the table board, but these have a power cord connected to the operating section of the table board, and the cord gets in the way and is not easy to use.

In addition, electronically controlled remote control types are in use, but these also have many inconveniences as the remote control operation part is placed on the floor such as tatami mats, so there is a risk of it breaking down if stepped on etc. .

The present invention is intended to solve the above-mentioned drawbacks of the conventional art, and embodiments thereof will be described with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a table board, and the chiffle board includes an oscillator 9 and a battery 8 for the oscillator as shown in FIG.
A transmitting section A including a built-in transmitting antenna 10 is installed therein, and furthermore, on the side surface of the table board 1, operating sections 2 for the control circuit of the heating element 6 are provided at a plurality of locations (for example, four locations). By operating the operating section 2, the frequency of the oscillator 9 changes and the signal to the control circuit 16 changes. There is a kotatsu futon 3 under the table board 1. The yagura kotatsu surrounded by the kotatsu futon 3 is constructed as follows.

Legs 5 are screwed to the four corners of the tower 4, and a heating element 6 is provided at the center of the interior of the tower 4. Near the heating element 6 are a receiving antenna 11, an amplifier 12, a frequency-voltage converter 13, and a detector 14 as shown in FIG.
, a temperature sensor 15, and a receiving section B incorporating a heating element control circuit 16 is provided. Further, power is supplied to the heating element 6 of the receiving section B1 via a power cord 7. The transmission and reception of signals from the transmitter A to the receiver B and the control of the seven heat generating bodies 6 are performed as follows.

As shown in FIG. 2, the oscillator 9 oscillates with the battery 8, and the oscillation frequency changes as the user operates the operating section 2. The signal oscillated by the oscillator 9 is input to the amplifier 12 via the transmitting antenna 10 and the receiving antenna 11, and is further input to the frequency-voltage converter 13 (hereinafter f).
-v converter) into a DC voltage corresponding to the oscillation frequency. Reference numeral 13 denotes a temperature sensor 15 provided near the heating element 6, which senses the temperature of the heating element 6, and a detector 14 detects the temperature of the heating element 6. The detector 14 receives the signal from the f-v converter 13 and the temperature sensor 1.
5 and applies a heat generation control signal to the control circuit 16 based on the comparison result.
The power supply to the heating element 6 is controlled based on the signal of C.

As described above, according to the present invention, there is no need to roll up the futon and look for the adjustment knob when adjusting the temperature, and the operation section outside the kotatsu, for example, is provided at multiple locations (for example, 4 locations) on the side of the table board 1. Temperature control can be performed simply by operating the operating section provided, making it easy to operate at any location. In addition, since the power cord is not connected to the table board, it is easy to use, and there is no risk of damage to the remote control operating section placed on the floor by stepping on it, unlike in the case of a remote control type.

Therefore, in the present invention, the heat generation of the heating element inside the kotatsu can be controlled by operating the operating sections provided at multiple locations on the side surface of the table board, and in this way, the operating sections do not get in the way. ,
Since it is placed in an easy-to-use position, it becomes easy to operate the power control of the Yagura Kotatsu, improving usability.

[Brief explanation of the drawing]

FIG. 1 is a partially cross-sectional explanatory diagram of an embodiment of the present invention. FIG. 2 is a block diagram of one embodiment of the control circuit for the Yagura Kotatsu according to the present invention. Code 1: table board, 2: operation unit, 6: heating element, 9: oscillator, 10: transmitting antenna, 11: receiving antenna, 13
: frequency-voltage converter, 14: detector, 15: temperature sensor, 16: power control circuit, A: transmitter, B receiver. Agent Patent Attorney Aihiko Fuku 212

Claims (1)

[Claims] 16. An electric Yagura Kotatsu, characterized in that an operating section for instructing a control circuit of a heating element and a control circuit for the heating element are separately provided, and instructions are wirelessly issued from the operating section to the control circuit.