JPH01195683A - Electric cooking heater - Google Patents

Abstract

PURPOSE:To make it possible to distinguish a complicated operation state at a glance by constituting a display means displaying a conduction rate set by a set means by a liquid crystal. CONSTITUTION:When a conduction rate of the electric heating elements 6 and 7 is set by a set means of the conduction rate, a display means 9 made of a liquid crystal display element displays the conduction rate to conduct the electric heating elements 6 and 7. Further, when conduction is stopped, the display means 9 displays matters to be attended such as 'Attention to a burn'. That is to say, a present operation state of an electric cooking heater can be displayed by the liquid crystal. Thereby, a complicated operation state can be distinguished at a glance.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to an electric cooking heater for general household use.

Conventional technology Conventional electric shoe heaters used a watt controller to set the energization rate of the electric heating element, but recently microcomputers have been used to turn on and off relays, triacs, etc. Electric heating heaters have begun to be manufactured in which the time can be set from the outside and the set level can be displayed using a light emitting display element such as an I4D. Figure 6 shows
This figure shows an example of the structure of such an electric heating heater.

In FIG. 6, 1 is a microcomputer, 12 is an energization rate setting means connected to the microphone/viewer 1, 3 is an LED used as an energization rate display means, 4 is an electric heating element, and 6 is a triac. There is.

FIG. 6 shows a perspective view of an electric heating heater such as that shown in FIG. 2 is an energization rate setting means connected to the microcomputer/computer, and 3 is an LED used as an energization rate display means.

Problems to be Solved by the Invention However, in the electric shoe heater configured as described above, the energization rate is displayed by the LED 3, so the operating state can be determined by turning on or off the LED 3. There was one, and I had to read a sign printed nearby to decipher its meaning.

Therefore, there is a limit to displaying complicated operating states.

The present invention has been made to solve these problems, and it is an object of the present invention to provide an electric heating heater that allows complicated operating conditions to be determined at a glance.

Means for Solving the Problems In order to solve the above problems, the electric shoe heater of the present invention includes an electric heating element, a setting means for setting the energization rate of the electric heating element, and a energization rate set by the setting means. and a display means for displaying the above-mentioned information. The display means for displaying the IL rate is composed of liquid crystal.

Furthermore, the present invention provides a display means for displaying the energization rate of the electric heating element, which includes a printed circuit board on which an LED is mounted, and a box-shaped frame that is attached to the printed circuit board so as to surround the LED described in 111I, and that has an opening in nII. body and this frame [111
A liquid crystal display device consisting of a liquid crystal display element installed in the opening, and a diffuser plate located between the liquid crystal display element and the LED described in 1jIJ and installed in the frame described in 1) II. be.

Function According to the above structure, since the display means for displaying the energization rate set by the setting means is constituted by a liquid crystal, the current operating state of the electric shoe heater can be displayed by the liquid crystal, and as a result, the complicated The operating status can also be determined at a glance.

Also, since liquid crystal display elements do not emit light like LEDs,
When used in a dark place such as a kitchen, it becomes difficult to read, but since the liquid crystal display element receives LED light from the back, the display on the liquid crystal display element can be easily checked even in a dark place. This makes it possible to realize an electric heating cooker that is easy to use.

Embodiment Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings.

FIG. 1 is a block diagram showing a part of an electric heating element according to an embodiment of the present invention. In FIG. 1, 6.7 is an electric heating element, 8 is an electric heating element 6. 7 is a setting means for setting the energization rate; 9 is a display means comprising a liquid crystal display element for displaying the energization rate of the electric heating element 6.7 set by the setting means 8; 10 is a display means for setting the energization rate of the electric heating element 6 by the setting means 8. A control circuit that turns on and off the relay and triac at a energization rate of .7, 11.12 is the triac, 13゜1
4 indicates a contact point of a relay.

FIG. 2 shows a perspective view of the electric heating element. In FIG. 2, 6.7 is an electric heating element, 8 is a setting means for setting the energization rate of the electric heating element 6.7, and 9 is a indicates display means for displaying the energization rate of the electric heating element 6.7 set by the setting means 8.

Figure 3 shows a partial sectional view of the electric footwear heater, and Figure 4 shows an exploded view of the display means of the electric footwear heater. The main body of the electric shoe 15 has electronic components and a plurality of diode-type LEDs 16 at the front inside the main body 15.
A printed circuit board 18 on which 17 is mounted is disposed. 19
is a box-shaped frame with openings on the front and rear surfaces, and a plurality of locking claws 20 are integrally formed at the upper and lower parts of the rear opening of this frame 19, and the locking claws 20 of The frame 19 is attached to the printed circuit board 18 by being inserted into and engaged with a hole 21 provided correspondingly to the printed circuit board 18. In this case, the frame 19 is formed in a size that can surround the plurality of LEDs 16, 17. Also, nij note frame 1
A reflective liquid crystal display element (LCD) 9 is installed in the front opening of 9.
is installed, and this liquid crystal display element 9 and the LED 16
．． A diffuser plate 22 is installed on the frame 19 so as to be located on the back side of the liquid crystal display element 9 between the liquid crystal display element 9 and the liquid crystal display element 9 . This diffuser plate 22 is formed of a glass plate or a resin plate colored white. Reference numeral 23 denotes a glass plate for protecting the liquid crystal display element 9, and this glass plate 23 is disposed in the front opening 15a of the packing main body 15, facing the liquid crystal display element 9. 8 is a setting means for setting the energization rate of the electric heating element 6.7, 24 is a microcomputer, and 110 is a control circuit.

The operation of the above configuration will be explained first.

When the energization rate of the electric heating element 6.7 is set by the energization rate setting means 8, the energization rate is displayed on the display means 9 consisting of a liquid crystal display element as shown in FIG. Power is applied. Further, when the navigation is stopped, precautions such as caution against burns are displayed on the display means 9 as shown in FIG.

By adopting the configuration shown in FIGS. 3 and 4, the liquid crystal display element 9 can receive light from the LEDs 18 and 17 from behind, so that it can effectively display images even in dark places. It is.

Note that the diffuser plate 22 has the effect of making the light from the LEDs 6.17 uniform.

Effects of the Invention As described above, according to the present invention, since the display means for displaying the energization rate set by the setting means is constituted by a liquid crystal, the current operating state of the electric heating heater can be displayed by the liquid crystal. As a result, even complex operating conditions can be determined at a glance.

Furthermore, since the liquid crystal display element of the present invention receives the LED light from the back side, the illumination by the LED allows
The display on the liquid crystal display element can be easily confirmed even in a dark place, and as a result, an electric heating heater that is easy to use can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an electric footwear heater showing an embodiment of the present invention, FIG. 2 is a perspective view of the electric footwear heater, FIG. 3 is a partial sectional view of the electric footwear heater, and FIG. 4 5 is a circuit diagram showing an example of a conventional electric heating heater, and FIG. 6 is a perspective view showing an example of the electric heating heater. 6.7...Electric heating element, 8. ... Setting means for energization rate, 9 ... Display means (liquid crystal display element), 16
゜17...LED, 18...Printed circuit board, 19...frame, 22...diffusion plate. Name of agent: Patent attorney Sano Nakao and 1 other person6,
L-tyc central focal body 6.7 --- eπ natural body 8 --- 1 energizing means 2 q-11 details gL (liquid crystal 1 Rin 4) 2nd Figure 8 σ 8-11 Setting means for continuous electricity (?--Neiyaku (Oya Katamoto 6) /6', +7-- LED 18--Psonto base handling 19--One frame ・Ne Figure 3 22-You Fig. 5

Claims (2)

[Claims] (1) It has an electric heating element, a setting means for setting the energization rate of the electric heating element, and a display means for displaying the energization rate set by the setting means, and the display means for displaying the energization rate is a liquid crystal display. An electric cooking heater characterized by comprising: (2) The display means for displaying the energization rate of the electric heating element is LE
A printed circuit board on which D is mounted, a box-shaped frame mounted on the printed circuit board so as to surround the LED and having an open front, a liquid crystal display element installed in the front opening of the frame, and Claim 1: A liquid crystal display device comprising a liquid crystal display element and a diffuser plate installed on the frame body and located between a liquid crystal display element and the LED.
Electric cooking heater as described in section.