JPS611923A - Cooking apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Industrial Application Field The present invention places food in a heating chamber, detects changes in water vapor, hot air, evaporated gas, etc. emitted from the food according to the degree of heating of the food using an atmosphere sensor, The present invention relates to a cooking device that automatically cooks food by controlling heating time, heating power, heating capacity, etc. in order to achieve the best heating state of the food according to the detected information.

Structure of the conventional example and its problems For example, in the conventional high-frequency heating cooker shown in FIG. A blower 3 that sends air into the heating chamber that houses the heating chamber, a waveguide 4 that guides the high-frequency electromagnetic field generated from the magnetron tube 2 to the heating chamber, and a ventilation hole 6 on the ceiling of the heating chamber to the outside of the cooking device. It consists of an exhaust guide 7 that guides the air coming out of the heating chamber, and an atmosphere sensor 8 that detects water vapor, hot air, evaporation residue, etc. contained in the air coming out of the heating chamber.
As shown in the figure, it is fixed to the exhaust guide Y near the ventilation hole 6. Depending on the degree of heating of the food 6, the food atmosphere in the heating chamber changes in water vapor, hot air, evaporated gas, etc., passes through the ventilation hole 6 provided in the ceiling of the heating chamber, hits the atmosphere sensor 8, and then flows along the exhaust guide. and is released outside the cooker.

In this way, the atmosphere sensor 8 detects the heating state of the food 6 using air as a medium. This high-frequency heating cooker controls the heating time and heating power based on the information obtained from the atmosphere sensor 8 to achieve the best heating state of the food 5.

Here, FIGS. 3 and 4 show how the atmosphere sensor 8 is fixed to the exhaust guide. The atmosphere sensor 8 has four electrodes 9 and holds a sensor element 11 covered with a wire mesh 10 for protecting the sensor part. Fixed. In order to fix this atmosphere sensor 8 to the exhaust guide 7, a fixing pin 13 and two screws 14° are used, and it is fixed near the ventilation hole 6 on the ceiling of the heating chamber.

In the case of this method of mounting the atmosphere sensor 8, since the fixed contact 13 and the atmosphere sensor 8 are separated, bring the atmosphere sensor 8 and place it at the position of the hole 16 of the exhaust guide. Furthermore, the mounting bracket 13 was brought in and placed after aligning it with the soil of the atmosphere sensor 8, which involved bringing and placing two items in the same position. This is called duplication of the same work, and when producing equipment in large quantities, it is a problem that hinders efficiency and shortening of production time.

Furthermore, when the atmosphere sensor 8 is placed and fixed with the mounting bracket 13, a gap is likely to be formed between the atmosphere sensor 8 and the exhaust guide 7, and depending on the type of food heated in the heating chamber,
There were cases where the air leaked into the exhaust gas through the gap in the atmosphere sensor and reached the charged parts of the electrical components that control the operation of the high-frequency heating device. If the exhaust air reaches the charged parts of electrical parts in this way, there is a risk of deterioration of the insulation, resulting in electrical leakage or electric shock during operation of the equipment.

OBJECTS OF THE INVENTION The present invention solves the above-mentioned drawbacks of the conventional art.It is an object of the present invention to eliminate the need for a separate fixing bracket by simply bringing the atmosphere sensor I to a predetermined position on the exhaust guide I, and to fix the atmosphere sensor The purpose is to avoid creating a gap between the finish and the exhaust guide.

Structure of the Invention In order to achieve the above object, the atmosphere sensor of the present invention has the following features:
It consists of a base to which an electrode connected to the sensor element is fixed, a net that protects the sensor element and allows the atmosphere to be ventilated, and a metal hook to which both the base and the net d are fixed. The hook has a ring-shaped step pusher for positioning the net, a claw for positioning the base, and a bending flange provided in a direction perpendicular to the claw.

Further, the exhaust guide to which the atmosphere sensor is attached is provided with a step pusher B that matches the shape and dimensions of the step pusher provided for positioning and fixing the net.

Furthermore, you can see the notch marks of the claws for fixing the base, which was provided by cutting out the hook, and the atmosphere sensor is attached to the exhaust guide by passing the fixing screw of the atmosphere sensor through the notch marks.

With the above-described configuration, the atmosphere sensor is fixed to the exhaust guide without the need for a fixing force for wires, so there is an effect that the number of parts and the number of assembly steps can be reduced compared to the conventional method. In addition, because the shapes and dimensions of the step pushers A and B provided on both the handle and the exhaust guide match, alignment when placing the atmosphere sensor on the exhaust guide can be easily performed, reducing assembly time. effective. Furthermore, because the shapes and dimensions of the step pusher and the step pusher B match, there will be no gap between the exhaust guide and the atmosphere sensor, and there is a risk that steam gas etc. discharged from the inside of the refrigerator will reach the live parts inside the device. It has the effect of disappearing.

Further, by providing a flange that is perpendicular to the claw, there is an effect that the close contact and airtightness between the step pusher and the step pusher B are not deteriorated even if the hook is fixed on both sides.

In addition, the claws created by cutting out a part of the hook fix the base, and the cutout marks serve as hooks for fixing with screws, so it is said that one material processing has two functions. Therefore, one function generally performs one processing, but one processing has two functions, which has the effect of reducing material processing costs.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 6, an atmosphere sensor 8 has an inorganic ceramic base 1 that fixes a metal electrode 9 connected to a sensor element.
6, a metal net 10 having holes of φ3 or less that protect the sensor element and allow ventilation of air coming out of the heating chamber, and a metal hook 17 that fixes between the base 16 and the net 10. , a step press A18 provided on the hook 17 for positioning and fixing the net 1o, a positioning claw 19 on the base 16, and a flange 20 made by bending at right angles to the claw 19, etc. In the figure, the metal exhaust guide 7 that fixes the atmosphere sensor 8 has a step pusher B21 whose shape and dimensions match the step pusher A18 provided on the hook 17, and a notch cut out to make a claw 19 with the hook 17. It is configured to have a tightening hole for a screw 23 having a hit equal to the pinch size of each of the two notch marks 22.

As shown in FIG. 7, by fitting the step pusher 18 provided on the counter 20 in close contact with the exhaust guide 70 step pusher B21, positioning can be easily performed. Exhaust air can be prevented from leaking to the opposite side of the base 160.

The inorganic ceramic base 16 is positioned and held down at two locations by the claws 19, and furthermore, the flanges 20 provided at two symmetrical positions on the metal hook 1 are always in contact with the faces of the claws 19 in the direction perpendicular to the base 16, thereby ensuring positioning. ing.

The flange/20 provided on the hook 17 is longer than or equal to the pitch dimension at the two notch marks 220 created to make the claw 19, and the pitch dimension at the two notch marks 22 is the same as that of the screw 2.
The tightening force fixed at No. 3 is transmitted through the No. 7 flange 20 and is reliably transmitted to the fitting portion of the step pusher A18 and step pusher B21.

As described above, according to this embodiment, by using inorganic ceramic for the base 16, it can be used in a high-temperature cooker such as an electric oven. Since the ventilation holes of the mesh 1o are smaller than φ3, the ambient temperature of the sensor element can be maintained stably.
7 is used for both fixing the net 1o and the base 16 and fixing it to the exhaust guide 7, which reduces man-hours and the number of parts.
Since the dimensions of both the and stepped pusher B21 are matched,
This has the effect of improving the airtightness when the exhaust guide of the atmosphere sensor 8 is fixed, the ease of alignment, and the improvement of workability.

Effects of the Invention As described above, according to the present invention, the following effects can be obtained.

(1) By fixing the net and further fixing it to the exhaust guide, Kanag has reduced the number of parts by using two metal fittings.
Although there was a problem with workability, it is possible to reduce the number of parts, reduce man-hours, and improve workability.

(2) By providing a step pusher B on the exhaust guide that matches the fitting dimension with the step pusher for positioning the net provided on the hook, the airtightness of the fitting part between the two is improved, and the inside of the exhaust guide is Exhaust air from the flowing heating chamber due to food heating will no longer reach the live parts of the electrical components.

(3) By providing bent flanges at two places on the hook, the tightening pressure when tightening screws is evenly transmitted to the step pusher and step pusher B through the flanges, maintaining the tightness of the mating part. let

(4) Providing 7 lunges prevents deformation of the counter, leaves no distortion in the part of the pusher, and does not deteriorate airtightness.

(5) Since the notch marks of the tabs provided on the hook are used for screw tightening, the overall dimensions when cutting the hook from the raw material can be effectively reduced, allowing for effective use of resource materials.
Works as a resource saver.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway exploded perspective view of a conventional high-frequency heating cooker, Fig. 2 is a sectional view of a cooker using a conventional atmosphere sensor, and Fig. 3 is a cutaway view of the main part with a conventional atmosphere sensor installed. FIG. 4 is a component configuration diagram according to FIG. 3 showing a conventional example, and FIG. 6 is an exploded configuration diagram of an atmosphere sensor according to an embodiment of the present invention.
The figure is an installation configuration diagram of an atmosphere sensor according to an embodiment of the present invention, and FIG. 7 is a sectional view showing the attachment of the atmosphere sensor of the present invention. 7... Exhaust guide, 9... Electrode, 1o...
... Net, 17 ... Kanag, 16 ... Base,
19...Tsume, 20...7 Ranno, 18...
・Step push A121・・・Step push B, 23...
···Screw. Name of agent: Patent attorney Toshio Nakao and 1 other person
″″

Claims (4)

[Claims] (1) A heating chamber for storing and heating food, an exhaust guide for guiding and discharging air from the heating chamber, an atmosphere sensor element for detecting the atmospheric condition inside the exhaust guide, and a heating chamber for supporting and fixing the atmosphere sensor element. It includes an electrode that conducts electricity, a base that arranges and fixes a plurality of electrodes, a net that protects the sensor element and allows the atmosphere to pass through, and a hook that fixes the base and the net. The cooking device has a structure in which the base is fixed to the base, and the screw is applied to the notch provided in the handle to fix it to the exhaust guide. (2) The ring is provided with an annular step corresponding to the part that holds down the net, and the exhaust guide is provided with a step with dimensions that allow the step provided on the ring to fit and match.Claim 1 Cooking device described in section. (3) The cooker according to claim 1, wherein the cooker is provided with bending flanges at two locations. (4) The claw is formed by cutting out two parts of the hook and protruding by bending it, and the cutout mark for the claw is used as a hook for a screw when fixing it to the exhaust guide.Claim 1
Cooking device described in section.