JP2020134048A - Temperature detection device for cooking apparatus - Google Patents

Abstract

To provide a high-reliability temperature detection device for cooking apparatus capable of suppressing fixture of a lead wire which outputs a temperature signal from a temperature detection body (temperature sensor), and a fixed-side support caused by a boiled-over cooking liquid from a cooking instrument.SOLUTION: A bevel-shaped flange part 56a of which the diameter at a lower side is larger than that at an upper side is provided in a lower end of a cylindrical fixed-side support 56 in which a lead wire (lead wire for temperature sensor) 15 outputting a temperature signal from a temperature detection body (temperature sensor) 57 penetrates, and a cylindrical suspension part 56 extending downward from a lower end of the flange part is provided. A boiled-over cooking liquid is guided through a top face of the bevel-shaped flange part and an outer peripheral surface of the cylindrical suspension part to a lower end of the cylindrical suspension part and made fall downward from the lower end of the cylindrical suspension part, thereby preventing the lead wire and the fixed-side support from being fixed by the cooking liquid.SELECTED DRAWING: Figure 2

Description

The present invention relates to a temperature detecting device for a cooking device, and more particularly to a temperature detecting device used to detect the temperature of a cooking tool (pot or the like) placed on a cooking device such as a gas stove.

Conventionally, a cooking device such as a gas stove is provided with a temperature detecting device that contacts the bottom surface of a cooking container (cooking tool) such as a pot and detects the temperature.

As a temperature detecting device for such a cooking device, for example, there is a temperature detecting device as disclosed in Patent Document 1.

The temperature detection device for a cooking device of Patent Document 1 includes a tubular fixed-side support fixed to a fixed portion of the cooking device and a contact body thermally coupled to a temperature sensor (thermista). A moving side support which is a side support and is provided so as to be movable up and down with respect to the fixed side support, and an urging means for urging the moving side support upward with respect to the fixed side support. The abutting body that comes into contact with the bottom surface of the cooking container heated by the cooking equipment moves up and down following the vertical movement of the cooking container within the vertical movement movable range of the moving side support, and moves up and down on the bottom surface of the cooking container. It is configured so that the temperature of the cooking container can be detected by abutting.

In the temperature detection device of Patent Document 1, a lead wire (lead wire for thermistor) connecting the temperature sensor (thermistor) and the control unit is arranged in a tubular fixed side support body, and is tubular. The thermistor lead wire is pulled out from the lower end of the fixed side support to the outside of the tubular fixed side support.

Therefore, as the moving side support moves up and down, the thermistor lead wire slides with the lower end peripheral edge of the tubular fixed side support.

Japanese Unexamined Patent Publication No. 2015-124934

In the temperature detection device of Patent Document 1 configured as described above, it is conceivable that when a spill occurs from the cooking container, the spilled broth adheres to the vicinity of the lower end portion of the tubular fixed-side support.

When the thermistor lead wire moves up and down with the vertical movement of the moving side support due to the vertical movement of the cooking container, the broth adhering to the vicinity of the lower end of the tubular fixed side support is discharged from the fixed side support. There is a risk of entry between the inner peripheral surface and the thermistor lead wire.

Therefore, when the broth that has entered between the thermistor lead wire and the fixed side support (inner peripheral surface) dries, the thermistor lead wire and the fixed side support are fixed by the dried broth. There is a problem.

Then, when the lead wire for the thermistor and the fixed side support are fixed, the moving side support having a contact body with the cooking container at the upper end moves up and down following the vertical movement of the cooking container. There is a disadvantage that the temperature of the cooking container cannot be detected.

The present invention solves the above-mentioned problems, and even when a spill occurs from a cooking tool (pot or the like), the broth outputs a temperature signal from a temperature detector (temperature sensor) on a lead wire and a fixed side. For highly reliable cooking equipment that can suppress adhesion to the vicinity of the lower end of the support and prevent the lead wire and the fixed-side support from sticking to each other due to the broth. It is an object of the present invention to provide a temperature detection device.

In order to solve the above problems, the temperature detection device for cooking equipment of the present invention is used.
(A) A fixed-side support that is fixed to an arbitrary fixing part of the cooking equipment and extends in the vertical direction,
(B) A tubular moving-side support that is fitted and inserted outside the fixed-side support and supported so as to be vertically movable.
(C) An abutting body arranged at the upper end of the moving side support and configured to always abut on the bottom surface of the cooking utensil by moving up and down following the vertical movement of the cooking utensil.
(D) A temperature detector disposed on the lower surface side of the abutting body in such a manner as to thermally bond with the abutting body.
(E) A lead wire for outputting a temperature signal from the temperature detector.
The fixed-side support is formed in a tubular shape, and the lead wire is arranged so as to vertically penetrate the inside of the fixed-side support.
When the side of the lead wire connected to the temperature detector is one end side and the side opposite to the side connected to the temperature detector is the other end side,
A temperature detection device for cooking equipment, wherein the other end side of the lead wire is arranged so as to be drawn out to the outside of the fixed side support via the lower end of the fixed side support.
The fixed-side support is provided with an umbrella-shaped collar having a larger diameter at the lower end than at the upper end, and a tubular hanging portion extending downward from the lower end of the collar. It is characterized by having.

In the temperature detection device for cooking equipment of the present invention, it is preferable that the surface of the tubular hanging portion is coated with a resin having water repellency.

Further, it is preferable that the resin is a resin having both water repellency and oil repellency.

The resin is preferably a fluororesin.

The temperature detection device for the cooking equipment of the present invention is configured as described above, and the fixed-side support is provided with an umbrella-shaped collar having a larger diameter at the lower end than at the upper end. Since it has a tubular hanging part that extends downward from the lower end of the brim, if a spill occurs from the cooking utensil, the spilled broth will have a larger diameter at the bottom than at the top. The broth that flows down from the lead wire in the direction away from the lead wire by the brim and flows down to the lower end of the brim on the umbrella flows down the outer peripheral surface of the tubular hanging portion that extends downward from the lower end of the brim. ..

Then, the broth that reaches the lower end of the tubular hanging portion is larger than the horizontal distance from the inner peripheral surface of the fixed-side support to the lead wire (lead wire for the temperature sensor) above the umbrella-shaped collar. It drops (drops) downward due to its own weight from the lower end of the tubular hanging portion that is separated from the lead wire (lead wire for temperature sensor) by a large distance (existing at a distant position in the horizontal direction).

Therefore, (a) the accumulation of broth in the lower part of the fixed-side support is suppressed, and (b) the broth flowing down the inclined upper surface of the collar portion wraps around to the inner peripheral side of the tubular droop. In addition to being suppressed, (c) the adhesion of the broth to the lead wire (lead wire for temperature sensor) is also suppressed.

As a result, even if a spill occurs from the cooking utensil, the broth adheres to the lead wire (lead wire for the temperature sensor) that outputs the temperature signal from the temperature detector (temperature sensor) and near the lower end of the fixed side support. However, it is possible to prevent the lead wire for the temperature sensor and the fixed-side support from sticking to each other due to the broth, and it is possible to provide a highly reliable temperature detection device for cooking equipment.

From the viewpoint that the broth flows smoothly down the outer peripheral surface of the tubular plumb bob due to its own weight, and the droplets of the broth easily fall down from the lower end of the tubular plumb bob due to its own weight, the tubular plumb bob is It is desirable that the axis is oriented in the vertical direction (vertical direction) (that is, the inner and outer peripheral surfaces of the peripheral wall are oriented in the vertical direction (vertical direction)).

Further, when at least the surface of the tubular hanging portion is coated with a resin having water repellency, the broth that has flowed down to the lower end of the tubular hanging portion easily falls downward through the inclined upper surface of the collar portion. Therefore, it is more reliably suppressed from wrapping around to the inner peripheral surface side of the tubular hanging portion. Therefore, we provide a highly reliable temperature detection device for cooking equipment that can more reliably prevent the lead wire (lead wire for temperature sensor) and the fixed side support from sticking to each other due to boiling water. can do.

Further, when a resin having both water repellency and oil repellency is used as the above resin, even when the broth contains oil, the broth that flows down to the lower end of the tubular droop through the inclined upper surface of the collar portion. Since it easily falls downward, it is suppressed from wrapping around to the inner peripheral surface side of the tubular hanging part, and it is certain that the lead wire (lead wire for temperature sensor) and the fixed side support are fixed by the broth. It is possible to provide a highly reliable temperature detection device for cooking equipment that can be suppressed.

In addition, since fluororesin has both high water repellency and oil repellency at the same time, by coating the tubular hanging portion with fluororesin, sufficient water repellency and oil repellency are imparted to the tubular hanging portion. This makes it possible to further demonstrate the present invention.

It is sectional drawing which shows the main part of the gas stove provided with the temperature detection device for the cooking apparatus which concerns on embodiment of this invention. (A) is a figure which shows the main part structure of the temperature detection apparatus for cooking equipment which concerns on embodiment of this invention, and is a partial notch which shows the state which shows the state which the moving side support is located at the uppermost part of the moving range. It is a front view, and (b) is a partially cutout front view which shows the state which the moving side support moved downward in the moving range.

Hereinafter, embodiments of the present invention will be shown, and the features thereof will be described in detail.

FIG. 1 is a cross-sectional view showing a main part of a gas stove provided with a temperature detection device for cooking equipment according to an embodiment of the present invention.

Further, FIG. 2A shows a state in which the moving side support of the temperature detection device for cooking equipment according to the embodiment of the present invention is located at the uppermost position, and FIG. 2B shows the moving side support moving downward. It is a partial notch front view which shows the state which was done.

As shown in FIG. 1, the temperature detection device 1 for the cooking device of this embodiment is arranged in the burner portion of the gas stove (cooking device) and is used to detect the temperature of the cooking tool (pot or the like) 2. It is a temperature detection device.

Since the configuration of the gas stove and its burner portion is already well known, the detailed structure is shown in FIG. 1 by omitting the illustration.

Some gas stoves are provided with one burner section, two burner sections arranged in the horizontal direction, or more burner sections (not shown), but here, one equipped with a temperature detection device 1. The structure of the burner portion will be described below.

As shown in FIG. 1, in the burner portion, an annular burner base 41 is connected to the tip of the mixing pipe 33. Further, an annular burner cap 5 is detachably placed on the upper portion of the burner base 41. An insertion hole 4 is provided at substantially the center of the burner base 41 and the burner cap 5 so as to penetrate vertically.

A groove is formed on the peripheral edge of the burner cap 5, and when the burner cap 5 is placed on the burner base 41, a plurality of flame openings that form an outward flame between the burner base 41 and the burner cap 5. (Not shown) are configured to be formed at intervals along the circumferential direction.

Further, the burner cap 5 is provided so as to be located substantially at the center of the burner opening formed in the top plate 11 of the gas stove, and the cooking utensil 2 is attached to the top plate 11 on the periphery of the burner opening. The five primes 12 for mounting are provided.

Next, with reference to FIGS. 2 (a) and 2 (b), the temperature detecting device 1 for cooking equipment provided in the stove portion will be described.

As shown in FIGS. 2 (a) and 2 (b), the temperature detection device 1 of this embodiment has a cylindrical fixed-side support 56 that is vertically fixed in the stove body and is vertically and vertically mounted on the fixed-side support 56. It is provided with a cylindrical moving-side support 53 that is fitted and mounted so as to be slidable.

A temperature sensor fixing member 62 provided with a flange portion 62a and a tubular storage portion 62b hanging downward from the lower surface of the flange portion on the lower surface side of the contact body 51 provided at the upper end of the moving side support 53. Is arranged, and a temperature detector (thermistor as a temperature sensor in this embodiment) 57 is incorporated in the tubular storage portion 62b of the temperature sensor fixing member 62.

The temperature detector (thermistor) 57 is connected to the control unit (valve control device) 50 (FIG. 1) in the main body of the stove via the lead wire (lead wire for the temperature sensor in this embodiment) 15. For example, when it is detected that the temperature of the abutting body 51 rises above a set value, the gas valve is automatically closed to prevent empty heating.

Further, as shown in FIGS. 2 (a) and 2 (b), the moving side support 53 is configured in a multi-cylindrical shape in which an outer cylinder (covering protection cylinder) 63 is integrated, and is an urging means (this). In the embodiment, it is urged upward by an urging means composed of a compression coil spring (54), and a washer 65 is fitted into the upper end of the fixed side support 56 and fixed by caulking.

In the state shown in FIG. 2A in which the moving side support 53 is located at the uppermost position in the moving range (that is, the moving side support 53 is at the uppermost position in the range in which the moving side support 53 can move up and down). The washer 65 is configured to come into contact with the small diameter portion 53a provided on the lower end side of the moving side support 53 to restrict the upward movement of the moving side support 53.

Then, in a state where the moving side support 53 is moved downward in the moving range shown in FIG. 2B, between the washer 65 and the small diameter portion 53a provided on the lower end side of the moving side support 53. A gap will be formed.

<Characteristic configuration>
Next, the characteristic configuration of the temperature detection device 1 for the cooking equipment of this embodiment will be described.

As described above, the temperature detection device 1 for cooking equipment according to the present embodiment is a lead wire (lead wire for temperature sensor) that outputs a temperature signal from the temperature detector (thermistor which is a temperature sensor in this embodiment) 57. ) 15.

Further, the fixed side support 56 is formed in a tubular shape, and a lead wire (lead wire for a temperature sensor) 15 is arranged so as to vertically penetrate the inside of the fixed side support 56.

The temperature sensor lead wire 15 has one end side of the temperature sensor lead wire 15 connected to the temperature detector (thermistor) 57, and the side opposite to the side connected to the temperature detector (thermistor) 57. When the other end side is set, the other end side of the temperature sensor lead wire 15 is arranged so as to be pulled out to the outside of the fixed side support 56 via the lower end of the fixed side support 56.

Then, as shown in FIGS. 1, 2 (a) and 2 (b), the fixed side support 56 is provided with an umbrella-shaped collar portion 56a at the lower end thereof, the diameter of which is larger in the lower part than in the upper part. ..

Further, at the lower end of the flange portion 56a, a tubular hanging lower portion 56b extending downward from the lowermost end portion of the collar portion 56a is provided.

In the present invention, the tubular hanging portion 56b is formed in a cylindrical shape, and its axial center (and inner peripheral surface) is configured to face in the vertical direction (vertical direction).

The temperature detection device 1 for cooking equipment according to the present embodiment is configured as described above, and the fixed side support 56 is at the lower end thereof, and the umbrella-shaped collar portion 56a having a larger diameter at the lower end than at the upper end. In addition to the above, it also has a tubular hanging portion 56b that extends downward from the lower end of the collar portion 56a, so that even if a spill occurs from the cooking utensil 2, the broth will have an umbrella-shaped collar portion. The 56a causes the lead wire (lead wire for temperature sensor) 15 to flow down in a direction away from the lead wire (lead wire) 15.

Then, the broth that has reached the lower end of the umbrella-shaped collar portion 56a flows downward along the outer peripheral surface of the tubular hanging portion 56b extending from the collar portion 56a. At this time, since the outer peripheral surface of the tubular hanging portion 56b is a vertical surface, the broth smoothly flows down the outer peripheral surface of the tubular hanging portion 56b and reaches the lower end of the tubular hanging portion 56b.

Then, the broth that has reached the lower end of the tubular lower portion 56b falls downward from the lower end of the tubular lower portion 56b due to its own weight. At this time, the lower end of the tubular hanging portion 56b is a fixed-side support 56 whose horizontal distance to the lead wire (lead wire for temperature sensor) 15 passing through the inside is above the umbrella-shaped flange portion 56a. Since it is larger than the horizontal distance from the inner peripheral surface to the lead wire (lead wire for temperature sensor) 15, the probability that the broth adheres to the lead wire (lead wire for temperature sensor) 15 is greatly reduced.

As a result, (a) the accumulation of broth in the lower part of the fixed side support 56 is suppressed, and (b) the broth flowing down the inclined upper surface of the collar portion 56a and the outer peripheral surface of the tubular hanging portion 56b is generated. It is suppressed that the tubular lower portion 56b wraps around to the inner peripheral side, and (c) the broth is prevented from adhering to the lead wire (lead wire for temperature sensor) 15.

As a result, even when a spill occurs from the cooking utensil 2, it is possible to suppress and prevent the temperature sensor (thermistor) lead wire 15 and the fixed side support 56 from sticking to each other due to the broth. It is possible to realize a temperature detection device for cooking equipment with high performance.

In the temperature detection device 1 for cooking equipment according to the present embodiment, from the viewpoint of making it easier for the broth to flow down the upper surface of the umbrella-shaped collar 56a, the tubular fixed side support of the umbrella-shaped collar 56a is provided. It is desirable that the inclination θ (see FIG. 2A) of the body 56 with respect to the axis X (see FIG. 2A) is in the range of 20 ° or more and 45 ° or less.

Further, from the viewpoint of promoting and securing a stable downward flow of the broth, the tubular hanging portion 56b preferably has a length L (see FIG. 2A) of about 5 mm.

Further, from the viewpoint of preventing the broth falling from the tubular hanging portion 56b from adhering to the lead wire (lead wire for temperature sensor) 15, the inner diameter D1 of the lower end portion (tip portion) of the tubular hanging portion 56b (FIG. 2). (See (a)) is configured to be 6 mm or more larger than the inner diameter D0 of the straight body portion (see FIG. 2 (a)) above the umbrella-shaped collar portion 56a of the fixed side support 56. Is desirable. However, if the inner diameter D1 of the tubular hanging portion 56b becomes too large, it may interfere with other members. Therefore, normally, the inner diameter D1 of the tubular hanging lower portion 56b is 6 mm to more than the inner diameter D0 of the straight body portion. It is preferable that the size is increased by about 10 mm.

Further, in the temperature detection device 1 for cooking equipment according to the present embodiment, the surface of the tubular hanging portion 56b is made of a water-repellent resin (fluororesin in the present embodiment) 60 (see FIG. 2A). It is covered.

Further, the fluororesin 60 used in the present embodiment is not only a water-repellent resin (water-repellent resin) but also an oil-repellent resin (oil-repellent resin).

Since the surface of the tubular hanging portion 56b is covered with a water-repellent resin (fluororesin) 60 as in the present embodiment, the upper surface of the umbrella-shaped flange portion 56a and the outer periphery of the tubular hanging portion 56b It is suppressed that the broth that has flowed down the surface accumulates in the lower part of the fixed side support 56 and wraps around to the inner peripheral side of the tubular hanging portion 56b, and the broth is a lead wire (lead wire for temperature sensor). ) 15 is more reliably suppressed from adhering to.

Therefore, it is necessary to more reliably prevent the lead wire (lead wire for temperature sensor) 15 arranged so as to pass through the inside of the fixed side support 56 and the fixed side support 56 from being fixed by the broth. It becomes possible to provide a highly reliable temperature detector for cooking equipment.

Further, as described above, since the fluororesin has water repellency and high oil repellency, even when the spilled broth contains oil, the broth is placed on the lower part of the fixed side support 56. Accumulation and wraparound to the inner peripheral side of the tubular hanging portion 56b are suppressed, and adhesion of the broth to the lead wire (lead wire for temperature sensor) 15 is more reliably suppressed.

Therefore, even when the broth contains oil, it is possible to further sufficiently prevent the lead wire (lead wire for temperature sensor) 15 and the fixed side support 56 from sticking to each other in the broth, which is reliable. It is possible to realize a temperature detection device for expensive cooking equipment.

Various fluororesins having both water repellency and oil repellency are known, but in the present invention, there are no particular restrictions on the types.

It is also possible to use a resin other than the fluororesin as the water-repellent resin and the oil-repellent resin.

The present invention is not limited to the above embodiment, and various modifications can be added within the scope of the present invention.

1 Temperature detector for cooking equipment 2 Cooking utensils (pots, etc.)
3 Fixing part of gas stove 4 Insertion hole 5 Burner cap 11 Top plate 12 Gotoku 15 Lead wire (lead wire for temperature sensor)
33 Mixing pipe 41 Burner base 50 Control unit (valve control device)
51 Contact body 53 Moving side support 53a Small diameter part of moving side support 54 Compression coil spring (urging means)
56 Fixed side support 56a Umbrella collar 56b Cylindrical hanging 57 Temperature detector (temperature sensor) (Thermistor)
60 Fluororesin (resin with water repellency and oil repellency)
62 Temperature sensor fixing member 62a Flange part 62b Cylindrical storage part 63 Outer cylinder (cover protection cylinder)
65 washer (magnet)
70 coil

Claims (4)

(A) A fixed-side support that is fixed to an arbitrary fixing part of the cooking equipment and extends in the vertical direction,
(B) A tubular moving-side support that is fitted and inserted outside the fixed-side support and supported so as to be vertically movable.
(C) An abutting body arranged at the upper end of the moving side support and configured to always abut on the bottom surface of the cooking utensil by moving up and down following the vertical movement of the cooking utensil.
(D) A temperature detector disposed on the lower surface side of the abutting body in such a manner as to thermally bond with the abutting body.
(E) A lead wire for outputting a temperature signal from the temperature detector.
The fixed-side support is formed in a tubular shape, and the lead wire is arranged so as to vertically penetrate the inside of the fixed-side support.
When the side of the lead wire connected to the temperature detector is one end side and the side opposite to the side connected to the temperature detector is the other end side,
A temperature detection device for cooking equipment, wherein the other end side of the lead wire is arranged so as to be drawn out to the outside of the fixed side support via the lower end of the fixed side support.
The fixed-side support is provided with an umbrella-shaped collar portion having a larger diameter at the lower end than the upper end, and a tubular hanging portion extending downward from the lower end of the flange portion. A temperature detector for cooking equipment, characterized by being equipped. The temperature detection device for a cooking device according to claim 1, wherein the surface of the tubular hanging portion is coated with a resin having water repellency. The temperature detecting device for cooking equipment according to claim 2, wherein the resin is a resin having both water repellency and oil repellency. The temperature detection device for cooking equipment according to claim 2 or 3, wherein the resin is a fluororesin.

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