JPH0719638B2 - Electric heating appliances - Google Patents

Description

TECHNICAL FIELD The present invention relates to an electric heating appliance such as an electric carpet or an electric blanket.

2. Description of the Related Art A conventional stepwise control is disclosed in Japanese Patent Application No. 59-197195 relating to a toilet device in the invention of the same applicant as the present invention.

FIG. 4 is a perspective view of the toilet device, and 39 is an operation panel. FIG. 5 is an enlarged view of the operation panel 39. The shower strength / drying temperature is controlled in seven steps by adjusting the strong switch 45 and the weak switch 46, and the control value is the level indicator 47. Is displayed in.

Problems to be Solved by the Invention However, in the case of the above-mentioned stepwise temperature control, if the number of steps is increased and the adjustment width is reduced, the operation of setting the temperature at an appropriate temperature is troublesome, and the number of parts also increases, It also increases the cost. On the contrary, if the number of steps is decreased and the adjustment range is increased, there is a problem that an appropriate temperature cannot be obtained.

Means for Solving the Problems An electric heating appliance that performs temperature control stepwise, and the adjustment temperature width is configured to be narrower than other portions in the central portion of the adjustment range by the temperature adjustment means.

Action In an electric heating appliance, in particular, the temperature change near the body temperature is best felt, so that the electric heater for performing the stepwise temperature control of the present invention, the central portion of the adjustment range by the temperature adjusting means, that is, the set temperature close to the body temperature. In the above, by making the adjustment temperature width narrower than the other portions, it is possible to provide an electric heating appliance with good operability, in which the appropriate temperature value can be set immediately without increasing the number of steps.

Example Hereinafter, an electric carpet, which is an electric heating appliance according to an example of the present invention, will be described with reference to the drawings.

In FIG. 2, reference numeral 1 denotes a main body having a heating element 2, and the main body 1
At the end, there is a control unit 3 for controlling the temperature of the heating element 2. FIG. 3 is a detailed view of the control unit 3. By operating the weak switch 4 and the strong switch 5 for temperature adjustment, the temperature setting and the display of the level indicator 6 are changed stepwise. Generally, in a contact heating appliance such as an electric carpet, when the temperature setting is changed by 2 to 3 ° C., a difference in temperature starts to be felt.

FIG. 1 is a graph showing the set temperature at each scale of the level indicator 6 from weak to strong, which is normally used "4".
The adjustment temperature range was set at 3 ° C near the scale and 6 ° C at the other parts, and the temperature adjustment range was made narrower at the central part than at other parts to enable fine temperature adjustment. For example, when the adjustment temperature range is 6 ° C. in all steps, the control is performed in 6 steps, but since the temperature range is wide, an appropriate temperature cannot be obtained especially in the central portion which is usually used. Further, when the adjustment temperature range is 3 ° C., an appropriate temperature can be obtained, but the control increases to 13 steps, the operability decreases, the number of parts increases, and the cost becomes high.

In this embodiment, the contradictory problems are solved by setting the adjustment temperature range as described above.

EFFECTS OF THE INVENTION In the present invention, the adjustment temperature range is narrower in the central portion of the adjustment range by the adjusting means for performing temperature control stepwise, so that the minimum number of steps and good operability are provided. Can be obtained.

[Brief description of drawings]

FIG. 1 is a diagram showing a relationship between a temperature setting scale and a set temperature of an electric heating apparatus according to an embodiment of the present invention, FIG. 2 is a perspective view of the electric heating apparatus, and FIG. FIG. 4 is a perspective view of a conventional toilet device, and FIG. 5 is an enlarged plan view of an operation panel of the toilet device. 3 ... control unit, 4 ... weak switch, 5 ... strong switch,
6 ... Level indicator.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Toshihiro Horikawa 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) Reference JP 57-11487 (JP, A) (JP, U)

Claims (3)

[Claims] 1. A main body having a heating element, an adjusting means for stepwise controlling the temperature of the main body, and a control means for controlling the temperature of the heating element by the adjusting means, the adjusting range by the adjusting means. In the central part of the electric heating appliance, the adjusted temperature range is narrower than other parts. 2. The electric heating appliance according to claim 1, wherein the main body is used in contact with the human body, and the control temperature range in the central portion is set to 2 to 3 ° C. 3. The electric heating appliance according to claim 2, wherein the central portion of the adjusting range by the adjusting means is substantially equal to the body temperature.