JP7215848B2 - Fryer sensor mounting structure - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sensor mounting structure for a fryer that heats cooking oil to deep-fry food to be cooked.

In stores such as restaurants and convenience stores, commercial fryers for frying foods to be cooked have been put into practical use. This fryer comprises an oil tank in which a predetermined amount of cooking oil is stored, and heating means for heating the cooking oil in the oil tank. A fryer using a gas burner disposed outside an oil tank as the heating means is disclosed in Japanese Patent Application Laid-Open No. 2002-200012.

In the fryer of Patent Document 1, the oil tank is installed in the fryer body, and the combustion gas heated by the gas burner disposed inside the fryer body is circulated through the exhaust passage defined outside the oil tank, whereby the oil tank is filled. Heat to warm the cooking oil. The combustion gas that has heated the oil tank is discharged to the outside through the exhaust port. In addition, in a fryer, if the gas burner is burned when there is no cooking oil in part or all of the oil tank, the oil tank will be in a state of empty heating, which is extremely dangerous. is provided.

In the fryer of Patent Document 1, an installation portion recessed in a V shape is formed on the outer wall of the oil tank facing the combustion chamber, and a detection sensor set in the installation portion is attached to the outer wall by a holding member. It is configured to be able to detect the occurrence of dry heating by detecting a temperature change.

Japanese Unexamined Patent Application Publication No. 2017-23340

Here, in order to quickly detect the dry-heating state of the oil tank, it is appropriate to install the detection sensor at a position right above the gas burner where it is most likely to be heated by the gas burner. However, if the installation portion for mounting the detection sensor is set at a position where it is most likely to be heated by the gas burner, the installation portion will reach a high temperature and thermal stress (stress due to elongation of the metal material due to heat) will increase. Therefore, if the installation portion is formed in a V-shape as in the prior art, stress is concentrated on the bottom portion of the installation portion, and there is a risk that the oil tank will crack or break. In addition, in order to prevent damage to the oil tank at the installation part, it is conceivable to move the installation part from the position where it is most likely to be heated by the gas burner. cause delay problems.

That is, the present invention has been proposed in view of the above-mentioned problems inherent in the prior art as described above, in order to preferably solve the problems. An object of the present invention is to provide a sensor mounting structure for a fryer to which a sensor can be mounted.

In order to overcome the above problems and achieve the intended purpose, the fryer sensor mounting structure according to the invention of claim 1 comprises:
A fryer comprising an oil tank for storing cooking oil, a combustion chamber provided with a gas burner for heating the oil tank from the outside, and a temperature sensor for measuring the temperature of the oil tank facing above the gas burner in the combustion chamber. A sensor mounting structure,
a holding member attached to a flat portion formed on the outer surface of the oil tank facing above the gas burner;
a pressing portion provided on the holding member and elastically deformable in directions approaching and separating from the flat portion;
In the temperature sensor, a measurement part for measuring temperature is housed at the tip of a rod-shaped sensor main body,
The pressing portion continuously abuts on the outer surface of the sensor body so as to cover the portion of the sensor body facing the combustion chamber excluding the housing portion of the measuring portion, thereby elastically pressing the sensor body against the flat portion. The gist is that it is configured to be pressed against the target.
According to the first aspect of the invention, the holding member is attached to the flat portion formed in the oil tank, and the holding portion of the holding member presses the temperature sensor against the flat portion for positioning. Therefore, it is possible to prevent the oil tank from being damaged by thermal stress. In other words, the temperature sensor can be installed at a position where the dry-heating state can be detected quickly without damage to the oil tank due to thermal stress, so that the occurrence of dry-heating can be detected early and countermeasures can be taken. . In addition, since the housing portion of the sensor main body for the measuring portion is not covered with the holding portion, the oil tank temperature can be accurately measured by the measuring portion.

In the invention of claim 2,
The pressing portion (33) has a free end extending from a body portion (32) fixed to the flat portion ( 21a ) of the holding member (31), and the temperature sensor (18) is pressed by the pressing portion (33). ) is separated from the outer surface of the oil tank (11) while being pressed against the flat portion (21a).
According to the second aspect of the present invention, since the pressing portion of the holding member that presses the temperature sensor is configured so that the free end is separated from the outer surface of the oil tank in a cantilever manner, the holding member itself thermally expands, causing the temperature sensor to depress the temperature sensor. It is possible to suppress weakening of the pressing force. That is, even if the holding member thermally expands, the free end of the pressing portion does not contact the oil tank, and the pressing force of the pressing portion against the temperature sensor can be maintained. In addition, since the extended end of the pressing portion is spaced from the oil tank, the pressing portion is not deformed in the direction away from the flat portion due to thermal deformation of the oil tank, and the pressing force of the pressing portion against the temperature sensor can be maintained. .

In the invention of claim 3,
The holding portion is inclined so as to separate from the flat portion from one end to the other end in the longitudinal direction of the sensor body in a state in which the sensor body of the temperature sensor is not sandwiched between the flat portion and the flat portion. death,
By inserting the sensor main body from the other end side between the holding part and the flat part, the holding part is elastically deformed and continuously contacts the outer surface so as to cover the part of the sensor main body. This is the gist of it.
According to the third aspect of the invention, the sensor main body of the temperature sensor can be easily inserted between the flat portion and the pressing portion, and the sensor main body can be prevented from being deformed or the like when the sensor main body is inserted. can. Further, since the pressing portion continuously contacts the outer surface of the sensor main body and presses it against the flat portion, the temperature of the oil tank can be accurately measured by the temperature sensor.

In the invention of claim 4,
The gist is that the thickness of the holding member is set to be thinner than the thickness of the oil tank.
In the fourth aspect of the invention, since the thickness of the holding member is made thinner than the thickness of the oil tank, stress is applied to the mounting portion between the oil tank and the holding member due to the difference in thermal expansion caused by the temperature difference between the oil tank and the holding member. When the holding member is damaged before the oil tank, it is possible to prevent the oil tank from being damaged and causing oil leakage.

In the invention of claim 5,
A plate-shaped restricting portion extending along the flat portion is provided, and the tip of the temperature sensor pressed against the flat portion by the pressing portion is positioned by contacting an end surface of the restricting portion that intersects the flat portion. The gist is that it was constructed.
According to the fifth aspect of the invention, since the tip position of the temperature sensor can be defined by the restricting portion, the temperature sensor can be positioned at an appropriate position.

In the invention of claim 6,
The gist is that the thickness of the regulating portion is set to 1/2 or more of the length of the temperature sensor in the pressing direction of the pressing portion.
In the sixth aspect of the present invention, the thickness of the restricting portion is set to 1/2 or more of the length in the pressing direction of the temperature sensor by the pressing portion. However, it is possible to prevent the temperature sensor from being damaged by preventing it from running over the restricting portion.

In the invention of claim 7,
The gist is that the restricting portion is formed integrally with the holding member, and the thickness of the restricting portion is set to be thinner than the thickness of the oil tank.
In the seventh aspect of the present invention, since the restricting portion is formed integrally with the holding member, the measuring portion of the temperature sensor held by the pressing portion can be accurately positioned.

According to the fryer sensor mounting structure according to the present invention, the temperature sensor can be reliably mounted at a position where the dry-heating state can be quickly detected without damaging the oil tank.

1 is a schematic perspective view showing a fryer according to an example; FIG. It is a principal part schematic side view which shows the fryer which concerns on an Example longitudinally. It is the principal part schematic which looked at the holding member attached to the oil tank from the lower side. It is the schematic perspective view which looked the holding member from the upper side. 4 is a cross-sectional view taken along line AA of FIG. 3; FIG. 4 is a cross-sectional view taken along the line BB of FIG. 3; FIG.

Next, preferred embodiments of the fryer sensor mounting structure according to the present invention will be described below with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, the fryer 10 of the embodiment includes a box-shaped oil tank 11 in which cooking oil is stored, a fryer body 12 in which the oil tank 11 is stored, and a combustion chamber 13 inside the fryer body. a gas burner 14 provided, an exhaust passage 15 for circulating the heated air (combustion gas) heated by the gas burner 14 to the outer periphery of the oil tank 11, and a temperature sensor 18 for measuring the temperature of the oil tank 11, Based on the oil tank temperature measured by the temperature sensor 18, it is configured to determine whether or not the oil is boiled dry by a control means (not shown).

The fryer body 12 is configured in a box-like shape with an upward opening, and an upwardly opening oil tank 11 is housed inside the fryer body 12 . The oil tank 11 has a first front wall 20 connected to the front edge of the bottom surface and extending upward. , and a second front wall 22 extending upward is connected to the front end of the extending portion 21 . Side walls 23, 23 (only one of which is shown in FIG. 2) are connected to the left and right side edges of the first front wall 20, the extension part 21, and the second front wall 22 in the width direction, so that the oil tank 11 is deep. Reservoirs 24a, 24b of different lengths are defined. In the embodiment, as shown in FIG. 2, a first storage portion 24a having a large depth is defined behind the first front wall 20, and a second storage portion 24a having a shallow depth is provided frontward of the first front wall 20. A reservoir 24b is defined.

Outside the oil tank 11, as shown in FIG. 2, a passage cover 25 is arranged at a predetermined interval. The passage cover 25 includes a front cover 25a that is spaced forward (outside) from the first front wall 20 of the oil tank 11 and a rear wall 26 that is spaced rearward (outside) from the oil tank 11. a rear cover 25b; a pair of side covers 25c, 25c (only one is shown in FIG. 2) spaced laterally (outside) from the left and right side walls 23, 23 of the oil tank 11; and a bottom cover 25d arranged opposite to the . A combustion chamber 13 is defined in a space surrounded by a front cover 25a, left and right side covers 25c, 25c, and a bottom cover 25d of the passage cover 25, and the first front wall 20 and the extension 21 of the oil tank 11. The gas burner 14 is arranged in the combustion chamber 13 , and the combustion chamber 13 communicates with the exhaust passage 15 . The gas burner 14 is configured to burn gas from a gas supply pipe (not shown) connected to a gas supply source (not shown) to heat the air in the combustion chamber 13 .

An exhaust duct 27 communicating with the exhaust passage 15 is erected at the rear portion of the fryer body 12 (on the rear side of the oil tank 11). The high-temperature combustion gas generated by gas combustion in the gas burner 14 heats the oil tank 11 by exchanging heat with the oil tank 11 when flowing through the exhaust passage 15, and finally It rises in the exhaust duct 27 and is discharged to the outside from the exhaust port 27a.

As the gas burner 14, a naturally aspirated Bunsen burner that uses city gas or LP gas as a combustion source and sucks primary air by gas flow is preferably used. The gas burner 14 includes a plurality of gas distribution pipes 28 extending in the width direction (horizontal direction) of the oil tank 11, and a plurality of combustion nozzles 29 provided on the upper surface of each gas distribution pipe 28 and spaced apart in the width direction. , each combustion nozzle 29 has a gas (flame) outlet 29a directed directly upward (extending portion 21). The gas burner 14 of the embodiment includes two burner portions 30a, 30b each having two gas distribution pipes 28, 28 aligned in the width direction, spaced apart in the front-rear direction with respect to the oil tank 11. As shown in FIG.

The fryer 10 of the embodiment includes the temperature sensor 18 that is used to prevent dry heating caused by gas combustion of the gas burner 14 when the specified amount of cooking oil is not stored in the oil tank 11. there is In the embodiment, a thermocouple temperature sensor is employed as the temperature sensor 18 and the temperature sensor 18 is connected to the control means. In this thermocouple temperature sensor, two metal wires of different materials are connected to form one circuit. When a temperature difference occurs between the two contacts, a voltage is generated in the circuit due to the Seebeck effect, which changes the temperature. configured to measure. The temperature sensor 18 has a sensor main body 18a in which the two metal wires (thermocouples) are covered with a protective tube (sheath) made of a highly heat-resistant material such as inconel, quartz, or ceramic, as shown in FIG. A measuring portion 18b consisting of a thermocouple is housed in the vicinity of the tip of the sensor main body 18a, and the oil tank temperature measured by the measuring portion 18b is input to the control means. The sensor main body 18a is an elongated rod-shaped portion, and has an elliptical cross-sectional shape in the lateral direction (see FIGS. 4 and 5).

As shown in FIG. 2, the temperature sensor 18 is attached to the lower surface (outer surface of the oil tank 11) of the extension part 21 constituting the second storage part 24b of the oil tank 11 via a holding member 31, which will be described later. . Also, the measuring portion 18b of the temperature sensor 18 is positioned substantially directly above the gas burner 14. As shown in FIG. More specifically, as shown in FIG. 2, the measurement unit 18b is located between two burner units 30a and 30b adjacent to each other in the longitudinal direction of the gas burner 14, and measures the flame outlet 29a of the burner units 30a and 30b. It is made to face near directly above. That is, the measuring part 18b is arranged at a position where the gas burner 14 heats the most in the extended part 21 of the oil tank 11 .

Here, the control means is configured to determine whether or not the oil is boiled dry, based on the oil tank temperature measured by the measuring portion 18b of the temperature sensor 18 . Specifically, when the amount of cooking oil in the oil tank 11 decreases and the second reservoir 24b is exposed to the air, or when there is no cooking oil in the oil tank 11, the oil tank heated by the gas burner 14 The extension 21 of 11 rises above the maximum temperature in the presence of cooking oil. Therefore, the maximum temperature in the presence of cooking oil is set as a threshold, and the control means determines that the boil-dry state occurs when the oil tank temperature measured by the measuring unit 18b exceeds the threshold. In addition, the control means is connected to an on-off valve provided in the gas supply pipe, and when the control means determines that it is in an empty-heating state, it closes the on-off valve and the gas burner 14 is configured to control the on-off valve so as to stop the combustion of

A portion of the extended portion 21 of the oil tank 11 where the temperature sensor 18 is installed is formed flat, and a sensor main body 18a of the temperature sensor 18 is attached via a holding member 31 to the flat portion 21a. As shown in FIGS. 3 to 6, the holding member 31 includes a flat plate-shaped main body portion 32 fixed to the flat portion 21a, a holding portion 33 extending in the lateral direction from the longitudinal edge of the main body portion 32, and a holding portion 33. A restricting portion 34 is integrally provided, and the pressing portion 33 and the restricting portion 34 are provided apart from each other in the longitudinal direction of the body portion 32 . The holding member 31 is made of a piece of metal having high heat resistance, and the sensor main body 18a of the temperature sensor 18 is elastically pressed against the flat portion 21a by a pressing portion 33 that is elastically deformable in the direction toward and away from the flat portion 21a. configured as follows. For example, the holding member 31 is recommended to be made of Inconel (nickel-based alloy), which exhibits elasticity even with high heat resistance. Further, the thickness of the holding member 31 (main body portion 32, pressing portion 33, restricting portion 34) is set thinner than the thickness of the oil tank 11 (extending portion 21). In the embodiment, the thickness of the entire holding member 31 is the same.

As shown in FIGS. 4 and 5, the pressing portion 33 of the holding member 31 has a chevron-shaped cross section in the lateral direction. The body portion 32 is positioned and fixed to the flat portion 21a (the oil tank 11) by fixing means (not shown) such as a screw while facing the flat portion 21a. The pressing portion 33 is composed of a first inclined surface portion 33a connected to the holding member 31 and a second inclined surface portion 33b connected to the extended end of the first inclined surface portion 33a. The sensor main body 18a of the temperature sensor 18 is sandwiched between the part 21a. Further, the holding portion 33 holds the sensor main body 18a between the two inclined surface portions 33a, 33b and the flat portion 21a, and the free end, which is the extended end of the second inclined surface portion 33b, is the flat portion 21a (oil tank). 11).

Both ends of the pressing portion 33 in the longitudinal direction are opened in the longitudinal direction with the holding member 31 fixed to the flat portion 21a. , the sensor main body 18a is inserted from the front end side through an opening (hereinafter referred to as a rear end opening) on the rear end side (the other end side) of the holding portion 33, which is separated from the regulating portion 34. As shown in FIG. The tip of the sensor main body 18a protruding from an opening (hereinafter referred to as a front end opening) on the front end side (one end side) of the holding portion 33 close to the restricting portion 34 is located at the restricting portion 34 as shown in FIG. By contacting the end surface (rear end surface) intersecting the flat portion 21a, the sensor main body 18a is positioned in the front-rear direction. Further, with the tip of the sensor body 18a in contact with the end surface of the restricting portion 34, the measuring portion 18b faces the space S between the pressing portion 33 and the restricting portion 34, and the measuring portion 18b (specifically, Specifically, the portion of the sensor main body 18 a in which the measuring portion 18 b is accommodated is configured so as not to be covered with the pressing portion 33 . In other words, the pressing portion 33 continuously abuts the outer surface of the sensor body 18a except for the housing portion of the measuring portion 18b, and presses the sensor body 18a against the flat portion 21a.

The holding portion 33 is separated from the flat portion 21a from the front opening side (one end) to the rear opening side (the other end) in a state where the sensor main body 18a of the temperature sensor 18 is not attached. It is inclined and set so that the rear end opening is larger than the front end opening. With the sensor main body 18a inserted and attached between the pressing portion 33 and the flat portion 21a, the elastically deformed pressing portion 33 continuously contacts the outer surface of the sensor main body 18a over the entire length in the longitudinal direction. configured to be in contact (see FIG. 6). Specifically, as shown in FIG. 5, the sensor main body 18a having an elliptical cross section is positioned between the pressing portion 33 and the flat portion 21a with the short diameter side facing the opposing direction of the pressing portion 33 and the flat portion 21a. The height of the front end opening (the separation height from the predicted position where the sensor main body 18a contacts the inclined surface portions 33a and 33b to the flat portion 21a) is shorter than the minor axis, and the rear end opening (the distance from the predicted position where the sensor main body 18a contacts the inclined surface portions 33a and 33b to the flat portion 21a) is set longer than the minor axis. More specifically, the rear end opening of the pressing portion 33 is wider than the cross section of the sensor main body 18a. That is, when the tip of the sensor main body 18a is inserted between the pressing portion 33 and the flat portion 21a from the rear end opening, it can be inserted without load. In the folded state, the sensor main body 18a can be pressed against the flat portion 21a over the entire length of the pressing portion 33 in the longitudinal direction. Further, the end portion of the pressing portion 33 on the front opening side is set so as to press the sensor main body 18a against the flat portion 21a in the vicinity of the accommodation portion of the measuring portion 18b arranged near the tip of the sensor main body 18a. In the embodiment, the short diameter of the sensor main body 18a is the length in the pressing direction of the pressing portion 33, and the thickness of the restricting portion 34 in surface contact with the flat portion 21a is 1/2 or more of the short diameter of the sensor main body 18a. is set to the thickness of

[Action of Example]
Next, the operation of the fryer sensor mounting structure of the embodiment configured as described above will be described.

In the fryer sensor mounting structure of the embodiment, the pressing portion 33 of the holding member 31 attached to the extension portion 21 of the oil tank 11 is separated from the flat portion 21a from the front end opening toward the rear end opening. Inclined. When the temperature sensor 18 is attached to the oil tank 11, the tip of the sensor main body 18a is inserted into the rear end opening of the holding portion 33, and the front end of the sensor main body 18a comes into contact with the rear end of the restricting portion 34. Positioned by location. That is, the rear end opening of the holding portion 33 is wider than the cross section of the sensor main body 18a, and when the front end of the sensor main body 18a is inserted from the rear end opening between the holding portion 33 and the flat portion 21a, the front end of the sensor main body 18a is inserted into the space between the holding portion 33 and the flat portion 21a. It can be easily inserted without being caught on the end surface of the pressing portion 33, and deformation of the sensor main body 18a can be prevented. In addition, since the pressing portion 33 is formed so as to be continuous over the entire length in the longitudinal direction, when the sensor main body 18a is inserted and removed between the pressing portion 33 and the flat portion 21a, the sensor main body 18a is Since there is no part to catch, damage to the sensor main body 18a can be prevented.

When the sensor main body 18a is inserted between the pressing portion 33 and the flat portion 21a until the tip of the sensor main body 18a abuts on the restricting portion 34, the elastically deformed pressing portion 33 covers the entire longitudinal length of the sensor. Since it contacts the outer surface of the main body 18a and presses it against the flat portion 21a, the sensor main body 18a can be reliably positioned. As shown in FIGS. 4 and 5, the pressing portion 33 is formed to have a chevron cross-section. The main body 18a can be positioned in the horizontal direction. Further, since the restricting portion 34 is formed integrally with the holding member 31 on which the pressing portion 33 is provided, the restricting portion 34 can accurately position the sensor main body 18a in the front-rear direction. That is, the measuring portion 18b housed in the tip portion of the sensor main body 18a can be accurately positioned in the space S between the pressing portion 33 and the restricting portion 34, and the storing portion of the measuring portion 18b can be positioned at the pressing portion. It is possible to avoid being covered with the portion 33 . In addition, since the thickness of the restricting portion 34 that is in surface contact with the flat portion 21a is set to 1/2 or more of the short diameter of the sensor main body 18a, it is inserted between the flat portion 21a and the pressing portion 33 to open the front end. It is possible to prevent the tip of the sensor body 18a extending from the regulating portion 34 from riding on the regulating portion 34, so that the temperature sensor 18 can be accurately positioned without being damaged. In addition, it is possible to prevent the housing portion of the measuring portion 18b from moving away from the outer surface of the oil tank 11 or from facing an area where the temperature becomes higher than intended due to the tip of the sensor main body 18a riding on the restricting portion 34. Thermal deterioration of the measuring portion 18b can be prevented.

In the sensor mounting structure of the embodiment, the holding member 31 is mounted on the flat portion 21a formed at the installation site of the temperature sensor 18 in the oil tank 11 of the fryer 10, and the temperature sensor 18 is mounted by the elastic pressing portion 33 of the holding member 31. The main body 18a is configured to be pressed against the flat portion 21a. That is, since there is no portion where the thermal stress concentrates on the installation portion of the temperature sensor 18 in the oil tank 11, the oil tank 11 can be prevented from being damaged by the thermal stress. Therefore, the temperature sensor 18 can be attached to the position where the gas burner 14 in the oil tank 11 heats the most by the gas burner 14, and the dry-heating state can be quickly detected, and the occurrence of the dry-heating can be quickly grasped and dealt with. can be done.

Further, as shown in FIG. 5, the holding portion 33 for holding the sensor main body 18a of the temperature sensor 18 is cantilevered on the holding member 31 so that the free end thereof is separated from the outer surface of the oil tank 11. It is possible to suppress weakening of the pressing force of the pressing portion 33 against the sensor main body 18a due to thermal expansion of the member itself. That is, it is possible to prevent the pressing portion 33 from being displaced in the direction away from the flat portion 21a due to the thermal expansion of the holding member 31, thereby maintaining the pressing force of the pressing portion 33 against the sensor main body 18a. The outer surface of the accommodation portion of the measuring portion 18b in is brought into contact with the flat portion 21a (the outer surface of the oil tank 11) without fail, so that the oil tank temperature can be measured with high accuracy. Further, since the free end of the pressing portion 33 is separated from the oil tank 11, even if the oil tank 11 is thermally deformed, the pressing portion 33 is not deformed in the direction away from the flat portion 1a. The pressing force of the sensor main body 18a by the pressing portion 33 can be maintained.

As shown in FIG. 6, the holding portion 18b of the sensor body 18a of the temperature sensor 18 is not covered with the pressing portion 33, so that the measuring portion 18b can accurately measure the oil tank temperature. In addition, since the pressing portion 33 presses the sensor main body 18a in the vicinity of the accommodation portion of the measuring portion 18b against the flat portion 21a, it prevents the measuring portion 18b from separating from the oil tank 11 and lowering the measurement accuracy of the oil tank temperature. be able to.

Since the thickness of the holding member 31 is set to be thinner than the thickness of the extending portion 21 of the oil tank 11, the difference in thermal expansion caused by the temperature difference between the oil tank 11 and the holding member 31 causes the main body of the holding member 31 to be deformed. When stress is applied to the fixing portion between the part 32 and the oil tank 11, the holding member 31 is damaged before the oil tank 11, thereby preventing the oil tank 11 from being damaged and causing oil leakage.

[Change example]
The present application is not limited to the configurations of the above-described embodiments, and other configurations can be appropriately adopted.
1. In the embodiment, the holding portion and the regulating portion are integrally formed, but it is possible to employ a configuration in which the regulating portion is fixed to the main body portion of the holding member by fixing means such as screws.
2. In the embodiment, the thickness of the regulating portion is the same as that of the holding member, but the thickness of the regulating portion is 1/2 of the length (minor axis in the embodiment) of the holding portion and the flat portion of the sensor body in the opposing direction. It is possible to employ a configuration in which the thickness is set to the above and is equal to or less than the thickness of the oil tank.
3. In the embodiment, the holding portion is formed to have a mountain-shaped cross section, but any shape such as an arc or a concave shape may be used as long as the temperature sensor can be stably positioned by the holding portion and can be pressed against the flat portion of the oil tank. may

Reference Signs List 11 oil tank, 13 combustion chamber, 14 gas burner, 18 temperature sensor, 18a sensor body, 18b measurement portion, 21a flat portion, 31 holding member, 32 body portion, 33 holding portion, 34 regulation portion

Claims (7)

An oil tank (11) for storing cooking oil, a combustion chamber (13) provided with a gas burner (14) for heating the oil tank (11) from the outside, and the gas burner (14) in the combustion chamber (13). A fryer sensor mounting structure comprising a temperature sensor (18) for measuring the temperature of the oil tank (11) facing above,
a holding member (31) attached to a flat portion (21a) formed on the outer surface of the oil tank (11) facing above the gas burner (14);
a pressing portion (33) which is provided on the holding member (31) and is elastically deformable in directions approaching and separating from the flat portion (21a),
The temperature sensor (18) has a measuring part (18b) for measuring temperature housed in the tip of a rod-shaped sensor body (18a),
The pressing portion (33) is continuous with the outer surface of the sensor body (18a) so as to cover the portion of the sensor body (18a) facing the combustion chamber (13) excluding the portion accommodating the measurement portion (18b). A sensor mounting structure for a fryer, wherein the sensor main body (18a) is elastically pressed against the flat portion (21a) by abutting against the flat portion (21a). The pressing portion (33) has a free end extending from a body portion (32) fixed to the flat portion ( 21a ) of the holding member (31), and the temperature sensor (18) is pressed by the pressing portion (33). ) is separated from the outer surface of the oil tank (11) while being pressed against the flat portion (21a). The holding portion (33) is configured to extend along the longitudinal direction of the sensor body (18a) in a state in which the sensor body (18a) of the temperature sensor (18) is not sandwiched between the flat portion (21a) and the sensor body (18a). sloping away from the flat portion (21a) as it goes from one end to the other end,
By inserting the sensor main body (18a) from the other end side between the holding portion (33) and the flat portion (21a), the holding portion (33) is elastically deformed to cause the sensor main body (18a) to move. 3. The fryer sensor mounting structure according to claim 2, wherein the sensor mounting structure is constructed so as to continuously abut on the outer surface so as to cover a portion thereof . The fryer sensor mounting structure according to any one of claims 1 to 3, wherein the holding member (31) has a thickness smaller than that of the oil tank (11). A flat regulating portion (34) extending along the flat portion (21a) is provided, and the tip of the temperature sensor (18) pressed against the flat portion (21a) by the pressing portion (33) is regulated by the regulating portion (34). 5. The fryer sensor mounting structure according to any one of claims 1 to 4, wherein the sensor mounting structure for a fryer is configured to abut against an end surface of the portion (34) intersecting the flat portion (21a) for positioning. 6. The fryer sensor mounting structure according to claim 5, wherein the thickness of the restricting portion (34) is set to be at least half the length of the temperature sensor (18) in the pressing direction of the pressing portion (33). 7. The fryer according to claim 6, wherein the restricting portion (34) is formed integrally with the holding member (31), and the thickness of the restricting portion (34) is set thinner than the thickness of the oil tank (11). Sensor mounting structure.

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