JP2011096589A - Cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cooker provided with a display unit which can express a change in operating state or the like of a heating unit by character by use of LED which allows reduction in cost, and is provided in an acceptable manner as a design of top plate. <P>SOLUTION: The cooker includes: a top plate 3 having an LED unit 7 provided on the lower surface; and a heating unit 5 provided below the top plate 3. The LED unit 7 includes a filter 8 and an LED chamber 10 having a light emitting section composed of an LED 9 located below the filter 8. The filter 8 includes a character A which selectively interrupts either one of lights differed in wavelength which are emitted from the light emitting section, and the filter 8 is disposed adjacently to the reverse side of the top plate 3. Light of either wavelength is emitted from the light emitting section, and a state of the heating unit is displayed on the top plate 3 by the character A interrupted by the emitted light of the wavelength and the light not interrupted. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a cooking device, and more particularly, to a cooking device capable of displaying the operation state of the cooking device, alerting, and the like using characters and colors using a special filter. is there.

  Conventionally, an LED (Light Emitting Diode) is generally used as a light emitting unit for displaying an operation state of an electromagnetic induction heating unit of a cooking device (see, for example, Patent Document 1).

Japanese Patent No. 2822608 (page 2 to page 3, FIGS. 1 and 2)

When an LED is used for the light emitting part as in Patent Document 1, changes in the operation state of the heating cooker cannot be represented by characters, and therefore changes in the operation state of the heating part are difficult to understand.
In addition, an LCD that displays an operation state or the like with characters can be used as the light emitting unit, but there is a problem that the cost increases.

  The present invention has been made to solve the above-described problems, and uses a low-cost LED, and can represent changes in the operating state or the like of the heating unit with characters, as a design of the top board. It is another object of the present invention to provide a cooking device having a preferable display unit.

The heating cooker according to the present invention is
A top plate with an LED unit on the bottom surface;
A heating unit provided at the bottom of the top plate,
The LED unit includes a filter and an LED chamber having a light-emitting portion that is located at the bottom of the filter and is made of LEDs.
The filter is provided close to the back surface of the top plate by providing letters on the filter to selectively block any of the different wavelengths of light emitted from the light emitting section.
Light of any wavelength is emitted from the light emitting unit, and the state of the heating unit is displayed on the top plate by letters blocked by the emitted light and light not blocked.

  According to the present invention, since the LED is used as the light emitting unit, the cost can be kept low, and the change in the operating state of the heating unit can be displayed with characters, and further, when the LED emits light and when it does not emit light. In any case, it is possible to provide a cooking device having a display area that is preferable as a top plate design.

It is a top view of the heating cooker which concerns on Embodiment 1 of this invention. It is a longitudinal cross-sectional view of FIG. It is the longitudinal cross-sectional view which expanded the principal part of FIG. It is action | operation explanatory drawing of the special filter of the heating cooker of FIG. It is action | operation explanatory drawing of the special filter of the heating cooker of FIG. It is a top view of the heating cooker which concerns on Embodiment 2 of this invention. It is effect | action explanatory drawing of the display surface of the heating cooker of FIG.

Embodiment 1 FIG.
1 and 2, a top plate 3 made of heat-resistant glass is provided in an upper opening 2 of an appliance body 1 of an electromagnetic induction heating cooker (hereinafter simply referred to as a heating cooker). On the surface of the top plate 3, there are provided placing parts 4 a to 4 b (hereinafter simply referred to as 4) of heated objects at the front left and right and the rear center, and electromagnetic induction heating parts 5 a to 5 are provided on the respective back sides. 5c (hereinafter simply referred to as 5) is provided. In addition, electromagnetic induction heating parts 5a-5b (henceforth a heating part only) are good also considering the one part as a heating part by a heater.

  Further, display surfaces 6a to 6c (display areas) (hereinafter simply referred to as 6) for displaying the operation states of the electromagnetic induction heating units 5a to 5c in the vicinity of the placement units 4a to 4b on the surface of the top plate 3, respectively. There is). The left display surface 6a is provided on the left side in front of the mounting portion 4a, the right display surface 6b is provided on the right side in front of the mounting portion 4b, and the rear display surface 6c is in front of the mounting portion 4c ( It is provided slightly behind the display surfaces 6a and 6b. These display surfaces 6a to 6c are formed so as to be easily discriminated. On the back side of the display surfaces 6a to 6c, LED units 7a to 7c (hereinafter simply referred to as 7) for displaying the states of the electromagnetic induction heating units 5a to 5c detected by a temperature sensor (not shown) in characters and colors. May be provided).

  As shown in FIG. 3, the LED unit 7 is provided with a special filter 8 (8a to 8c), which is disposed in the vicinity of the back surface of the display surface 6 to display the operation state with characters and colors. It comes to call attention over. Below the special filter 8, an LED chamber 10 (10a to 10c) having LEDs 9 (9a to 9c) as light emitting portions is provided. The LED 9 includes, for example, a first LED 91 that emits blue light and a second LED 92 that emits orange light. In this case, the first LED 91 may emit light in green.

The special filter 8 is configured such that characters and colors displayed on the filter 8 are changed by light from the first LED 91 (blue light) and light from the second LED 92 (orange light). It is designed to call attention by displaying the operation status.
More specifically, the special filter 8 is provided with a letter (described by printing or the like) that blocks any of the different wavelengths of light emitted from the first and second LEDs 91 and 92. An operation state or the like is displayed on the display surface 6 by characters that block light and light that is not blocked by the characters. When the first LED 91 (blue light) is lit, the blue light is blocked by the blue blocking character 91A and the characters are displayed, and the portion B (backlight portion) other than the character A is blocked from the blue light. It passes blue without turning blue. When the second LED 92 (orange light) is turned on, the orange light is blocked by the orange blocking character 92A and characters are displayed, and the portion B (backlight portion) other than the characters is orange. Since the light passes through without being blocked, it becomes orange.
In this case, the character and backlight lighting specifications may be reversed. For example, only characters necessary for blue light may be displayed in blue.
When the LED 9 is not lit, the display surface 6 is black and the characters of the special filter 8 are not visible. In this case, emphasizing the design, the display surface 6 may be the same pattern as the top 3 or may be a mirror display.

  More specifically, as shown in FIGS. 4 and 5, the blue cut-off character 91A (“waiting for heating”) and the orange cut-off character 92A (“heating IH”) are displayed on one special filter 8. Are listed. Then, as shown in FIG. 4A, when the blue light a, b, and c emitted from the first LED 91 are passed through the special filter 8, the light b passes through the special filter 8, and the light b is orange. Passing through the color blocking character 92A, the light C is blocked by the blue blocking character 91A ("waiting for heating"). Therefore, as shown in FIG. 4B, the blue blocking character 91A ("waiting for heating") Is displayed as a character, and the other part B (the part through which light b) passes is blue.

  On the other hand, as shown in FIG. 5A, when the red light D, E, and F emitted from the second LED 92 are passed through the special filter 8, the light D passes through the special filter 8, and the light H is orange. The light is blocked by the color blocking character 92A (“heating IH”), and the light passes through the blue blocking character 91A. Therefore, as shown in FIG. 5B, the orange blocking character 92A (“IH is heating”). ) Are displayed as characters, and the other part B (the part through which light D and F pass) is orange. Note that the blue blocking character 91A ("Waiting for heating") and the orange blocking character 92A ("IH being heated") are shown separated on the same filter surface, but are partially overlapped. There may be.

In the above description, two LEDs 9 (first and second LEDs 91 and 92) that emit blue and orange light are disposed in the LED chamber 10, respectively, but blue and orange light are selectively used. One LED 9 capable of emitting light may be disposed. In addition, the LED 9 emits blue and orange two-color light, but other colors may be used, and three-color light emission or more.
The special filter 8 is preferably made of a heat-resistant material so that it can withstand high temperatures near the top plate 3.

Next, the operation will be described.
When the cooking device is not energized, the display surface 6 is all black and no operating characters are visible. When a body to be heated (not shown) is placed on the placement section 4 and a predetermined applied voltage is applied to the heating section 5 by applying current, the body to be heated is heated by electromagnetic induction.
During heating standby, as shown in FIG. 4, the backlight portion B of the display surface 6 is blue, and “waiting for heating” is displayed. On the other hand, during heating, as shown in FIG. 5, the backlight portion B of the display surface 6 is orange and is displayed as “IH being heated”.
In some cases, the LED 9 may be blinked to indicate that the operating state is at a level that should be further noted.

  According to the first embodiment, since the special filter 8 as described above is used, even when the LED 9 is used, different states can be displayed on the same display surface 6, and the LCD is used. Cost can be reduced compared to the case. And since the color of a character and a backlight can be changed corresponding to an operation state, a state display can be clarified and attention can be drawn. At this time, since the display surface 6 is enlarged so as to be easily discriminated, attention can be drawn regardless of the viewing angle. Further, when the LED 9 is not lit, the display surface 6 is black, so that it is possible to clearly distinguish between lighting and non-lighting. Also, the display surface 6 has the same pattern as the top plate 3 or a mirror display. In this case, the display area can be incorporated into a part of the design of the top surface 3, and the design is improved.

Embodiment 2. FIG.
In the first embodiment, the display surfaces 6a to 6c are individually arranged in the vicinity of the placement units 4a to 4c. However, in the second embodiment, the operation states of the three heating units 5a to 5c can be displayed in one place. It is a thing.
In FIG. 6, the display surface 61 is provided in front of the rear mounting portion 4c, and is divided into left, right, and rear display surfaces 61a to 61c, which correspond to the respective display surfaces 61a to 61c. The LED unit 71 divided into three chambers (LED chambers 101a to 101c) is attached. And the special filters 81a-81c are provided in the upper part of each LED chamber 101a-101c, and are arrange | positioned adjacent to the back surface of the partitioned display surfaces 61a-61c. Each of the partitioned LED chambers 101a to 101c is provided with LEDs 9a to 9c. Each of the LEDs 9a to 9c emits blue light and the second LED that emits orange light. LED92.

Next, the operation will be described.
For example, when the left, right, and rear heating units 5a, 5b, and 5c are not energized, as shown in FIG. 7 (a), the left, right, and rear compartment display surfaces 61a, 61b, 61c is all black and no characters can be seen.

Further, for example, when the right heating unit 5b is in a heating standby state and the left and rear heating units 5a and 5c are not energized, as shown in FIG. The backlight of is blue and is displayed as “Waiting for right IH heating”, and the display surfaces 61a and 61c in the left and rear compartments are black and characters cannot be seen.
The backlight of the display surface 61b in the right section is blue and “right IH heating standby” is displayed because the blue light emitted from the first LED 91 of the LED 9b is blocked by the blue blocking character 91A. This is because the characters “Waiting for right IH heating” are displayed, and the portion B (backlight portion) other than the characters passes blue without being blocked and becomes blue.

Further, for example, when the left heating unit 5a is in a heating standby state, the right heating unit 5b is in a heating state, and the rear heating unit 5c is not energized, as shown in FIG. The backlight of the display surface 61a in the left section is blue and is displayed as “Waiting for left IH heating”, and the backlight of the display surface 61b in the right section is orange and is displayed as “Heating right IH”. The display surface 61c of the section is black and characters cannot be seen.
The backlight of the display surface 61a of the left section is blue and “Left IH heating standby” is displayed for the same reason as above. In addition, the backlight of the display surface 61b in the right section is orange and “right IH is being heated” is displayed because the orange light emitted from the second LED 92 of the LED 9b is the orange blocking character 92A. This is because the characters “Heating right IH” are displayed and the portion B (backlight portion) other than the characters passes through without being blocked and becomes orange.

  For example, when the left electromagnetic induction heating unit 5a is in a heated state, the right electromagnetic induction heating unit 5b is not energized, and the rear electromagnetic induction heating unit 5c is in a heating standby state, FIG. As shown in (d), the backlight of the display surface 61a in the left section is orange and is displayed as “heating left IH”, the display surface 61b in the right section is black, and no characters can be seen. The backlight of the display surface 61c of the section is blue and is displayed as “waiting for subsequent IH heating”. The backlight of the display surface 61a in the left section is orange and displayed as “Left IH heating”, and the backlight of the display surface 61c in the rear section is blue and “Waiting for rear IH heating” is displayed. For the same reason as before.

  In the second embodiment, the operation states of the three electromagnetic induction heating units 5a to 5c can be displayed at one place. In addition, since the backlight colors of the display surfaces 61a to 61c of the LED unit 71 can be changed, the number of characters that can be expressed as the entire display surface 61 can be increased.

  In the above description, the cooking device provided with the electromagnetic induction heating unit has been described, but the present invention can also be implemented in a cooking device in which all the heating units are heaters.

  3 Top plate, 4 Placement part, 5 Heating part (Electromagnetic induction heating part), 6, 61 Display surface (display area), 7, 71 LED unit, 8, 81 Special filter (filter), 9 LED (light emitting part) 10, 101 LED room, 91 1st LED (light-emitting part), 91A Blue cut-off character, 92 2nd LED (light-emitting part), 92A Orange cut-off character, A character, B Backlight part.

Claims (14)

A top plate with an LED unit on the bottom surface;
A heating unit provided at the bottom of the top plate,
The LED unit includes a filter, and an LED chamber having a light emitting portion that is located under the filter and includes LEDs,
The filter is provided close to the back surface of the top plate by providing a character that selectively blocks any of the light of different wavelengths emitted from the light emitting unit,
The light emitting unit emits light of any wavelength, and the state of the heating unit is displayed on the top plate by letters blocked by the emitted light and non-blocked light. To cook. The light emitting part is a two-color light emission of a wavelength consisting of orange and blue, and forms an orange cut-off character and a blue cut-off character that cut off either the orange or blue light on the filter,
The light emitting unit emits light of an orange wavelength, and a first status display is displayed on the filter by an orange blocking character blocked by the orange wavelength light and an orange backlight not blocked by the orange wavelength light. Done
The light emitting unit emits light having a blue wavelength, and a second state display is performed on the filter by a blue blocking character blocked by the light having the blue wavelength and a blue backlight not blocked by the light. The cooking device according to claim 1.   The cooking device according to claim 1 or 2, wherein each of the cut-off characters is partially overlapped on the filter surface. The top plate provided with the LED unit includes a display area of the LED unit,
The filter of the LED unit is disposed in proximity to the back surface of the display area of the top plate, and the display character displays the blocking character and the light not blocked by the blocking character. The cooking device according to any one of 3 above.   The cooking area according to any one of claims 1 to 4, wherein the display area of the LED unit is black, the same pattern as the top plate, or a mirror display when the light emitting unit is not lit. vessel.   The cooking device according to any one of claims 1 to 5, wherein the filter is made of a heat-resistant material.   The cooking device according to any one of claims 1 to 6, wherein the light emitting unit includes two LEDs, and each LED emits light having a different wavelength.   The cooking device according to any one of claims 1 to 6, wherein the light emitting unit includes one LED, and the one LED emits light having different wavelengths.   The cooking device according to any one of claims 1 to 8, wherein the LED blinks and lights up.   The cooking device according to claim 1, wherein the LED unit is provided in the vicinity of the heating unit.   The cooking device according to claim 10, wherein the heating unit is provided at least at two positions on the left and right sides of the front side of the top surface, and LED units are provided in front of the heating unit.   The cooking device according to claim 11, wherein the LED unit includes one LED chamber, and a light emitting unit including LEDs is provided in the one LED chamber.   The cooking device according to claim 10, wherein the heating unit is provided at least at two positions on the left and right sides of the front side of the top surface, and an LED unit is provided in front of the center.   The cooking device according to claim 13, wherein the LED unit is partitioned into a plurality of LED chambers, and a light-emitting unit including LEDs is provided for each chamber.

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