JPH04106406U - electric cooker - Google Patents

Abstract

(57) [Summary] [Purpose] To avoid exposure to strong light from the lamp heater when raising and lowering a pot. [Structure] In an electric cooker having a structure in which the upper part of the lamp heater 3 is covered with a translucent mounting table 2, a pot detection means 7 for detecting the presence or absence of a pot 8 on the mounting table 2 is provided, and the pot 8 is not present. When detected, the output of the lamp heater 3 is automatically reduced. Note that a function of reducing the output regardless of the presence or absence of the pot 8 may be added. [Effect] Even if you raise and lower the pot in a high output state, your eyes will not be exposed to the strong light of the lamp heater, which will prevent you from feeling uncomfortable.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to an electric cooker that uses a lamp heater as a heating source.

0002

[Conventional technology]

The structure uses a lamp heater as a heating source and covers the top with a translucent mounting table. Electric cookers are known (for example, Japanese Patent Laid-Open No. 197723/1999, Japanese Patent Laid-Open No. 2-1977) (See Publication No. 203123, etc.). Halogen lamps are generally used as lamp heaters. The pot placed on the table directly absorbs the infrared rays emitted by the lamp heater. It is heated by the heat conduction from the mounting table.

0003

[Problem that the idea aims to solve]

Lamp heaters emit not only infrared rays but also visible rays, and at high output emits very strong visible light. For this reason, the pot must be raised and lowered under high output conditions. The user will be exposed to a fairly strong beam of light. For this reason, place the pot on the stand. It is common practice to increase the output or lower the output and then lower the pot. However, it is cumbersome to operate the output adjustment knob each time. If you forget to do the following, the strong light will hit your eyes and be uncomfortable.

0004 This idea focuses on these points, and uses a strong lamp heater when raising and lowering the pot. This was done to prevent exposure to light.

[0005]

[Means to solve the problem]

In order to achieve the above-mentioned purpose, the electric cooker of this invention has a pot on the mounting table. A pot detection means for detecting the absence of a pot; and a pot detection means for detecting the absence of a pot. and output control means for reducing the output of the lamp heater. Additionally, a run is performed with or without a pot in the same state as when the absence of a pot is detected. It is also possible to provide output suppressing means for reducing the output of the heater.

[0006]

[Effect]

If there is no pot on the table, the output of the lamp heater will automatically decrease. Do not expose your eyes to the strong light from the lamp heater even when raising and lowering the pot while the power is on. There is no fault. In addition, an output switching function is added by providing output suppression means. Therefore, the output adjustment range is expanded to the low output side.

[0007]

【Example】

Next, one embodiment shown in the drawings will be described. Figure 1 shows an example of a table stove type, where 1 is the cooker body and 2 is the stove. A mounting table 3 is provided inside the main body 1 as a top plate. This is a heater section provided. This heater section 3 includes, for example, a plurality of halogen lamps 4. The upper surface is covered with the mounting table 2, and the lower surface and surrounding area are covered with a heat insulator (not shown). In this embodiment, two heater sections 3 are provided. Also, the mounting table 2 is a translucent material made of a heat-resistant material such as quartz glass.

[0008] 5 is an output regulator, 6 is an output fixing switch, and each heater part 3 is connected to the main body 1. Each is located on the front. 7 is a pair of ultrasonic oscillator 7a and ultrasonic receiver A pot detector 8 is a pot, and the pot detector 7 includes one for each heater section 3. The oscillator 7a is provided in pairs on the front upper part of the cooking device main body 1, and the oscillator 7a is received on the rear upper part. The transmitters 7b are arranged facing each other, and the signal is emitted when the pot 8 is placed on the mounting table 2. The ultrasonic signal 9 from the vibrator 7a is blocked. Note that in this example Although the output regulator 5 is of a rotary type, it may be of other types.

[0009] Reference numeral 11 denotes a control section provided inside the cooking device main body 1, and a schematic diagram of the electric circuit is shown in FIG. A wiring diagram is shown. In the figure, 12 is a control element connected in series to the heater section 3; 3 is a commercial power supply. The control unit 11 is configured using, for example, a microcomputer. The output regulator 5 and output fixing switch 6 are connected to the input side, and the control element 12 gate terminals 12a are connected to the output side, and are further connected to the oscillator 7a of the pot detector 7 and the receiver. A signal device 7b is connected to the control section 11. Although only one of the two heater sections 3 is shown in FIG. 2, the actual In some cases, similar circuits are configured for other heater sections 3 as well.

0010 FIG. 3 shows the set value of the output regulator 5 (rotation angle in this embodiment) and the output of the heater section 3. This is an example of the relationship, and depending on the rotation angle, it changes from off to on as shown by solid line A. Further, the output is configured to vary from the minimum value to the maximum value. Also, pot detection The oscillator 7a of the device 7 oscillates an ultrasonic signal 9 when the output regulator 5 is rotated and turned on. However, when the receiver 7b receives this signal, the output of the heater section 3 is configured to decrease. has been done.

[0011] This decrease in the output of the heater section 3 is caused by the output depending on the set position at that time, as shown by the broken line B. A pattern in which the force value decreases by a predetermined reference value H, as shown by the broken line C, the rotation of the regulator 5 A pattern in which the rate at which the output increases (i.e., the output slope) decreases by a predetermined amount depending on the angle. Then, by combining these two as shown by the broken line D, the minimum output is reduced by the reference value H. There are patterns in which the output gradient also decreases, so if necessary, change one of the patterns. selected. Note that the magnitude of the reference value H corresponds to the minimum output as shown in the figure. The output gradient is not limited to a certain value, but can be set to an appropriate value, and the output gradient is also arbitrary. These output reduction patterns, reference value H, output slope, etc. must be determined in advance. Although the control unit 11 may be configured in this way, appropriate selection means and adjustment procedures may be used. It is also possible to provide stages so that they can be arbitrarily selected during use. Also, the output When the fixed switch 6 is turned on, it stops the above output reduction operation. Yes, if it is turned on, the output will always be in the pattern of solid line A regardless of the presence or absence of pot 8. It's meant to change.

0012 The embodiment has the configuration as described above, and the operation will be explained next. Connect the electric cooker to the commercial power supply 13 and turn the output regulator 5 to turn it on. and when the output fixing switch 6 is turned on, the output is adjusted according to the rotational position of the regulator 5. A signal is output from the control section 11 to the gate terminal 12a of the control element 12 to perform phase control. The heater section 3 heats the mounting table 2 with an output corresponding to the temperature, and the table 2 is placed on it. Heat the heated pot 8.

[0013] In addition, when the output fixed switch 6 is not turned on, the receiver of the pot detector 7 7b does not receive the ultrasonic signal 9 from the oscillator 7a, and the presence of the pot 8 is detected. Therefore, similarly to the above, the heater section 3 operates with a predetermined output according to the rotational position of the regulator 5. Start. On the other hand, the receiver 7b receives the ultrasonic signal 9 and detects that the pot 8 is not present. If the output is lower than the setting value of the regulator 5, depending on the selected pattern. Start operation. Then, when the pot 8 is placed on the mounting table 2, the ultrasonic signal 9 can be received. It is detected that the pot 8 is missing, and the output of the heater section 3 is set by the regulator 5. Cooking starts when the temperature rises to the specified value. Thereafter, when the pot 8 is taken down from the mounting table 2 during cooking, the receiver 7b receives the ultrasonic signal 9. It is detected that there is no pot 8, and the heater section 3 is turned on according to the selected pattern. Output is automatically reduced. Therefore, even if you are cooking at high output, the heater The strong light from the part 3 does not enter the eyes, thereby preventing discomfort.

[0014] In addition, in the embodiment, a transmission type ultrasonic type is used as the pan detector 7, but Reflective types can also be used, and even those that detect the weight of the pot, for example, are completely unnecessary. It is also possible to use other methods. In addition, the output control is performed using semiconductors like the example. Instead of controlling the phase of the element, other measures such as reducing the number of energizations of the halogen lamp 4 can be used. In addition, the pattern of output reduction is also constant as shown by the chain line E in Figure 3. Other methods, such as one that cuts the upper limit above the value, may be adopted. Also, as in the example Instead of inputting the status signal of the fixed output switch 6 to the control unit 11, The output of the ultrasonic oscillator 7a may be blocked by other means such as mechanically shielding the output depending on the operation of the ultrasonic generator 7a. It is also possible to stop the force reduction control.

[0015] In the above embodiment, the output fixed switch 6 is always set to the putter pattern shown in FIG. 3 regardless of the presence or absence of the pot. However, on the contrary, the panel is always selected regardless of whether there is a pot or not. Output is suppressed to the pattern when it is detected that there is no pot like turns B to E It can also be used as a switch for In this case, as switch 6 For example, constant selection of pattern A, output suppression, and 3-position switching without these controls. It is better to use a switch. In this output suppression function, especially in patterns B, C, and D, the base output and output By lowering the force gradient, a two-stage output switching function is added, increasing the output adjustment range. The range has been expanded to the low output side, and the set values of the base output and output slope at the time of output suppression have been expanded. By making it variable, it is easy to finely adjust the output, making the cooker easy to use. can get.

[0016]

[Effect of the idea]

As is clear from the above embodiments, this invention uses a lamp heater as a heating source. A pot detection means is installed in the air cooker, and the output of the lamp heater is reduced when there is no pot. This is how it was done. Therefore, even when raising and lowering the pot under high output conditions, the strong light from the lamp heater is Automatically prevents exposure to eyes and allows cooking without discomfort This is possible. In addition, if there is a means to always suppress the output when there is no pot, the output can be adjusted. It is possible to obtain a cooker with an expanded range and easy fine adjustment of output.

[Brief explanation of drawings]

FIG. 1 is a perspective view of one embodiment of this invention.

FIG. 2 is an electrical circuit diagram of the same embodiment.

FIG. 3 is an operation explanatory diagram illustrating the relationship between the output setting value and the actual output of the same embodiment.

[Explanation of symbols]

1 Cooker body 2 Mounting table 3 Heater part 4 Halogen lamp 5 Output regulator 6 Output fixed switch 7 Pot detector 7a Ultrasonic oscillator 7b Ultrasonic receiver 8 Pot 9 Ultrasonic signal 11 Control section

Claims (2)

[Scope of utility model registration request] Claim 1: An electric cooker having a structure in which the upper part of the lamp heater is covered with a translucent mounting base, comprising: a pan detection means for detecting the presence or absence of a pot on the mounting base; An electric cooking device comprising: output control means for reducing the output of the lamp heater when it is detected that the lamp heater is absent. 2. The electric cooking appliance according to claim 1, further comprising an output suppressing means for reducing the output of the lamp heater to the same state as when the absence of a pot is detected, regardless of the presence or absence of a pot.