JP2016114296A - Inspection method of detection device for heating cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inspection method of a detection device for a heating cooker capable of performing an operation inspection favorably in a state where an ambient air temperature of the detection device for a heating cooker is changed from a normal temperature, while achieving simplification of equipment for the inspection and shortening of inspection time.SOLUTION: In an inspection method of a detection device for a heating cooker, a detection body 22 provided so that it can change the position between a projection position and a retreat position for retreating by a contact with an object to be heated is provided at a cylindrical support body 21, and at an outer peripheral part of the cylindrical support body 21, a lead switch 24 and a magnet 25 for applying a magnetic field are provided in an opposing state in the circumferential direction, and a shielding member 26 in which the position can be changed between a shielding action position for shielding a magnetic force of the magnet 25 and a shielding release position according to the movement of the detection body 22 is provided. In a state where a bias magnetic field Jb is applied for changing the intensity of a magnetic field Ja of the magnet 25 applied to the lead switch 24, the detection body 22 is switched between the projection position and the retreat position, and the switching of the lead switch 24 between a closed state and an open state is confirmed.SELECTED DRAWING: Figure 7

Description

The present invention is a cylindrical shape provided in a state where the cylinder axis of the heated object existence side end portion adjacent to the existence area of the article to be heated is aligned with the exit / entry direction in which the article to be heated enters and exits the existence area. A support;
Positioned on the heated object existence side end portion at a protruding position that protrudes into the existence area by movement in the direction along the cylinder axis and a retreat position that retreats by contact with the heated object that enters the existence area A detector that can be changed and is provided in a state of being biased back to the protruding position;
A temperature detection unit that is mounted on the detection body and detects a temperature of a contact portion with an object to be heated in the detection body;
Applying a magnetic field to the reed switch and the reed switch provided on the outer peripheral portion of the cylindrical support body facing away from the portion where the detection body is mounted in the circumferential direction of the cylindrical support body A magnet to play,
The inside of the cylindrical support is moved along the longitudinal direction of the cylindrical support to a shielding action position for shielding the magnetic force of the magnet and a shielding release position for releasing the shielding, and the reed switch is closed. A shielding member that switches between a state and an open state;
An interlocking connecting portion that interlocks and connects the detection body and the shielding member, and switches the shielding member between the shielding action position and the shielding release position in accordance with the movement of the detection body between the protruding position and the retraction position. It is related with the inspection method of the detection apparatus for cooking-by-heating equipment provided.

  Such a detection device for a heating cooker is provided, for example, on an upper surface portion of a gas stove while moving an object to be heated such as a pot heated by a stove burner equipped on the upper surface portion of a gas stove as a heating cooker in the vertical direction. By switching between the state placed on the five virtues and the state lifted above the five virtues, the detection body is repositioned to the retracted position and the protruding position, and the shielding member is repositioned to the shielding action position and the shielding release position. Thus, the presence or absence of the object to be heated can be detected by switching the reed switch between the closed state and the open state, and the temperature detection unit equipped on the detection body allows the object to be heated to be detected. The temperature can be detected (see, for example, Patent Document 1 (paragraphs [0019] to [0021] and FIGS. 12 to 15).)

  By the way, as the form of changing the position of the shielding member to the shielding action position and the shielding release position as the detection body is changed to the protruding position and the retracted position, the shielding member is used when the detecting body is at the protruding position. Contrary to the form in which the shielding member is positioned in the shielding release position when the detection body is in the retracted position and the detection body is in the shielding position, the shielding member is in the shielding release position when the detection body is in the protruding position. And the shielding member is located at the shielding action position when the detection body is in the retracted position.

  In addition, there are two types of reed switches: a normally open reed switch that closes when the magnetic field of the magnet acts, and a normally closed reed switch that opens when the magnetic field of the magnet acts. A normally open type reed switch is used as a reed switch in such a form that the shielding member is positioned at the shielding action position when the body is in the protruding position and the shielding member is positioned at the shielding release position when the detection body is at the retracted position. In many cases, the reed switch is operated to be closed when the detection body is pressed by the object to be heated and moved to the retracted position.

JP 2006-34783 A

In the manufacturing stage, the detection device for a cooking device performs an operation test to check whether the reed switch is properly switched between the closed state and the open state while changing the position of the detection body between the protruding position and the retracted position. It will be.
If the operation inspection is simply performed at room temperature (for example, 20 ° C.), the heating cooker is in an operating state, and the ambient temperature of the heating cooker detection device is high (for example, about 60 ° C.). When the temperature rises, it cannot be confirmed whether or not the heating cooker detection device operates properly.

  Further, for example, when starting to use a heating cooker in a cold district or the like, the ambient temperature of the heating cooker detection device may be low (for example, 0 ° C.). , 20 ° C.), it is not possible to confirm that the cooking device detection device operates properly.

  That is, the magnetic permeability of the magnetic material constituting the reed switch decreases as the temperature rises above room temperature (for example, 20 ° C.), and the moving value and the open value of the reed switch increase. Since the magnetic force that is applied decreases as the temperature rises above room temperature (for example, 20 ° C.), the detection device for the heating cooker is appropriate if the operation inspection is simply performed at room temperature (for example, 20 ° C.). It will not be possible to confirm whether or not it will work.

  In addition, the magnetic permeability of the magnetic material constituting the reed switch increases as the temperature drops from room temperature (for example, 20 ° C.), and the moving value and the open value of the reed switch are lowered. Since the magnetic force increases as the temperature drops below normal temperature (for example, 20 ° C.), the detection device for the heating cooker operates properly if the operation inspection is simply performed at normal temperature (for example, 20 ° C.). It is impossible to confirm whether or not to do.

  Therefore, when performing the operation inspection, it is conceivable to raise the ambient temperature of the heating cooker detection device to a high temperature (eg, about 60 ° C.) or to lower the temperature to a low temperature (eg, 0 ° C.). In this case, there is a disadvantage that a large-scale temperature adjustment facility is required to change the ambient temperature of the heating cooker detection device, and it takes time to change the ambient temperature of the cooking device detection device. Therefore, there is an inconvenience that the inspection time of the operation inspection becomes long.

  The present invention has been made in view of the above circumstances, and its purpose is to reduce the ambient temperature of the detection device for a heating cooker while simplifying the equipment for inspection and shortening the inspection time. It is the point which provides the inspection method of the detection apparatus for heating cookers which can perform the operation | movement inspection in the state equivalent to the state changed from normal temperature favorably.

In the inspection method of the detection device for a heating cooker according to the present invention, the cylindrical axis of the heated object existence side end portion adjacent to the existence area of the article to be heated is placed in the entrance / exit direction where the article to be heated enters and exits the existence area. A cylindrical support provided in a lined state;
Positioned on the heated object existence side end portion at a protruding position that protrudes into the existence area by movement in the direction along the cylinder axis and a retreat position that retreats by contact with the heated object that enters the existence area A detector that can be changed and is provided in a state of being biased back to the protruding position;
A temperature detection unit that is mounted on the detection body and detects a temperature of a contact portion with an object to be heated in the detection body;
Applying a magnetic field to the reed switch and the reed switch provided on the outer peripheral portion of the cylindrical support body facing away from the portion where the detection body is mounted in the circumferential direction of the cylindrical support body A magnet to play,
The inside of the cylindrical support is moved along the longitudinal direction of the cylindrical support to a shielding action position for shielding the magnetic force of the magnet and a shielding release position for releasing the shielding, and the reed switch is closed. A shielding member that switches between a state and an open state;
An interlocking connecting portion that interlocks and connects the detection body and the shielding member, and switches the shielding member between the shielding action position and the shielding release position in accordance with the movement of the detection body between the protruding position and the retraction position. And a detection method for a heating cooker detecting device provided with
With the bias magnetic field changing the strength of the magnetic field applied to the reed switch applied, the detector is switched between the projecting position and the retracted position, and the reed switch is closed and opened. The point is to confirm the switching.

  That is, according to the above characteristic configuration, the strength of the magnetic field applied to the reed switch by the magnet is changed to a strength corresponding to a temperature different from the ambient temperature of the detection device for the cooking device by the bias magnetic field. In this state, it is possible to perform an operation test for confirming whether the reed switch can be appropriately switched between the closed state and the open state while changing the position of the detection body between the protruding position and the retracted position.

  In other words, when performing an operation test corresponding to a state in which the ambient temperature of the detection device for a heating cooker is higher than normal temperature, the magnetic field strength of the magnet applied to the reed switch is reduced by the bias magnetic field. In this state, an operation inspection is performed to check whether the reed switch can be properly switched between the closed state and the open state while changing the position of the detection body between the protruding position and the retracted position.

  In addition, when performing an operation inspection corresponding to a state where the ambient temperature of the detection device for a heating cooker is lower than normal temperature, the magnetic field strength of the magnet applied to the reed switch is increased with a bias magnetic field. In this state, an operation inspection is performed to check whether the reed switch can be properly switched between the closed state and the open state while changing the position of the detection body between the protruding position and the retracted position.

  In order to generate a bias magnetic field, an electric magnetic field generator is used. However, since such a magnetic field generator is less expensive than a temperature control facility, a facility for inspection is used. In addition, since the electric magnetic field generator is in a state where it immediately generates a magnetic field when energized, the inspection time can be shortened.

  In short, according to the characteristic configuration of the present invention, the state corresponding to the state in which the ambient temperature of the detection device for the cooking device is changed from the normal temperature while simplifying the equipment for inspection and shortening the inspection time. The test | inspection method of the detection apparatus for heating cookers which can perform the operation | movement test | inspection well in can be provided.

A further characteristic configuration of the inspection method of the detection device for a heating cooker of the present invention is:
The cylindrical support is formed in an L shape having a bent middle portion in the longitudinal direction,
The interlocking connecting portion is disposed inside the cylindrical support body, and the shielding member is moved to the shielding action position and the shielding release position along with the movement of the detection body between the projecting position and the retraction position. It is composed of a flexible cord-like body that is pushed and pulled.
The reed switch and the magnet are provided on an outer peripheral portion of a separated side portion farther from the heated object existing side end portion than the intermediate portion of the cylindrical support.

  That is, according to the further characteristic configuration of the present invention, since the cylindrical support body is formed in an L shape, the cylindrical support body can be disposed in various spaces in the heating cooker, Moreover, since the reed switch and the magnet are provided on the outer peripheral portion of the separation side portion that is farther from the heated object existence side end portion than the intermediate portion in the cylindrical support, the separation side portion is the heated object existence side end. Due to the fact that it is harder to be heated by a heating part such as a cooker that heats the object to be heated than the part, even when the separated side part becomes hot during the operation state of the heating cooker, This is advantageous in reducing the degree of heat loss of the reed switch and the magnet.

  The interlocking connecting portion is disposed inside the cylindrical support body, and can push and pull the shielding member to the shielding action position and the shielding release position in accordance with the movement of the detection body between the protruding position and the retracted position. Since it is composed of a cord-like body having flexibility, the shielding member is appropriately formed in accordance with the movement between the projecting position and the retraction position of the detection body even though the cylindrical support body is formed in an L shape. Can be changed to a shielding action position and a shielding release position.

  Therefore, according to the further characteristic structure of this invention, the operation | movement test | inspection of the detection apparatus for heating cooking appliances which is excellent in installation property and advantageous in avoiding a heat loss can be performed favorably.

A further characteristic configuration of the inspection method of the detection device for a heating cooker of the present invention is:
The bias magnetic field reduces the strength of the magnetic field applied to the reed switch.

  That is, according to the further characteristic configuration of the present invention, the bias magnetic field reduces the strength of the magnetic field applied to the reed switch by the magnet. When the ambient temperature of the cooking device detection device rises to a high temperature, it can be properly confirmed whether or not the cooking device detection device operates properly.

  Therefore, according to the further characteristic configuration of the present invention, when the ambient temperature of the cooking device detection device rises to a high temperature, it is possible to appropriately confirm whether or not the cooking device detection device operates properly. it can.

A further characteristic configuration of the inspection method of the detection device for a heating cooker of the present invention is:
The bias magnetic field increases the strength of the magnetic field applied to the reed switch.

  That is, according to a further characteristic configuration of the present invention, the bias magnetic field increases the magnetic field strength of the magnet applied to the reed switch by the magnet. When the ambient temperature of the heating cooker detection device is considerably low, such as a time point before operating the cooking cooker, it can be appropriately confirmed whether or not the heating cooker detection device operates properly.

  Therefore, according to the further characteristic configuration of the present invention, when the ambient temperature of the heating cooker detection device is considerably low, it can be appropriately confirmed whether or not the heating cooker detection device operates properly.

A further characteristic configuration of the inspection method of the detection device for a heating cooker of the present invention is:
The bias magnetic field is applied by a Helmholtz coil.

  That is, according to the further characteristic configuration of the present invention, since the bias magnetic field is applied by the Helmholtz coil, the bias magnetic field is formed in a state in which the magnetic strength in the direction orthogonal to the direction of the magnetic force lines is made uniform. Therefore, even if the position of the reed switch and the magnet changes in the direction perpendicular to the direction of formation of the magnetic field lines in the bias magnetic field, the magnetic field strength of the magnet applied to the reed switch can be changed appropriately. It is possible to appropriately confirm whether or not the heating cooker detection device operates properly without accurately positioning the reed switch and the magnet with respect to the bias magnetic field.

  Therefore, according to the further characteristic configuration of the present invention, an appropriate operation test can be performed without accurately positioning the reed switch and the magnet with respect to the bias magnetic field.

Gas stove perspective view Longitudinal side view of the mounting part of the stove burner The perspective view which shows the support structure of a grill pan Top view of the state where the grill pan is stored in the grill cabinet Longitudinal side view of detection device for cooking device Longitudinal side view of detection device for cooking device The figure which shows the test | inspection state of the detection apparatus for heating cookers Graph showing the relationship between magnet's magnetic force and temperature Graph showing the relationship between reed switch sensitivity and temperature

Embodiment
Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Overall configuration of gas stove)
As shown in FIG. 1, the gas stove as a heating cooker is configured to include a pair of left and right stove burners 1 on the upper surface of the stove body H, and a grill G (see FIG. 3) inside the stove body H. Has been.
This gas stove is configured as a so-called built-in type that is inserted and assembled from above into a stove mounting opening formed in the kitchen counter, and is placed on the kitchen counter at the upper peripheral edge of the stove body H. A buttock is formed.

A glass top plate 2 is mounted on the top of the stove body H, and a grill exhaust port 3 for discharging cooking exhaust of the grill G is formed at a rear side portion of the top plate 2.
On the top plate 2, five victories 4 for placing a heated object K such as a pan heated by the stove burner 1 are provided corresponding to each of the left and right stove burners 1.

As shown in FIGS. 1 and 2, a stove sensor SC serving as a heating cooker detection device S is provided at the center of the stove burner 1.
In the present embodiment, as will be described later, a grill sensor SG is mounted on the grill G as the cooking device detection device S (see FIGS. 3 and 4).
Incidentally, the stove sensor SC detects the presence of a pan or the like as the object to be heated K and the bottom wall temperature of the object to be heated K, but the grill sensor SG is the grill pan 9 as the object to be heated K. And the ambient temperature of the sensor mounting portion are detected.

A pair of left and right stove operating tools 5 for the left and right stove burners 1 are provided on the front side of the top plate 2 mounted on the top of the stove body H so as to be freely detachable upward. A grill setting operation unit 6 for the grille G is provided at a right side of the grille G so as to be opened and closed by swinging back and forth with the lower side as a fulcrum.
FIG. 1 illustrates the open state of the grill setting operation unit 6.

Each of the pair of stove control tools 5 has various commands such as commands for ignition and extinguishing, commands for target heating power, commands for automatic temperature cooking to maintain the target temperature by front and rear, left and right slide operations, and left and right rotation operations. It is configured to command information.
The grill setting operation unit 6 includes a plurality of command switches. By operating these command switches, ignition and extinguishing commands, a target heating power command, and a target temperature are maintained with respect to a grill burner A for cooking that will be described later. It is configured to command various command information such as a command for automatic temperature cooking.

(Comrobana configuration)
As shown in FIG. 2, the stove burner 1 includes a cylindrical burner main body 1A and a mixing tube 1B connected to the burner main body 1A. The burner main body 1A has a circumferential direction. A flame hole F is formed. That is, the stove burner 1 is configured to have a flame hole F in an annular shape.

The stove burner 1 is configured as a so-called Bunsen burner that burns fuel gas using primary air mixed with the fuel gas and secondary air supplied from the outside.
That is, when the fuel gas is jetted and supplied from the jet nozzle 7 to the end of the mixing tube portion 1B, the primary air is sucked into the mixing tube portion 1B by the ejector action, and the primary air and the fuel gas are mixed into the mixing tube. As the fluid flows through the inside of the part 1B, it is mixed, and the mixed gas is supplied to the flame hole F described above to perform primary combustion.
Then, air flowing along the upper surface of the top plate 2, air flowing from the lower side of the top plate 2 through the inside of the burner body 1A to the upper side is supplied as secondary air to the combustion flame, and secondary combustion is performed. Will be done.

Incidentally, the stove sensor SC is arranged inside the burner main body 1A and is configured to be cooled by air flowing upward through the burner main body 1A.
The details of the stove sensor SC will be described later.

(Grill configuration)
As shown in FIGS. 3 and 4, the grill G is provided with a grill box 8 formed in a cylindrical shape having a front portion opened as an inlet / outlet UA for cooking and a back portion opened as an outlet UB for discharging cooking exhaust. A cooking container support L, which is provided and supports a grill pan 9 (an example of a cooking container) and has a grill door 10 (see FIG. 1) at its front end, can be moved back and forth through the entrance / exit UA. Is provided.

  3 and 4 exemplify a state where the ceiling wall of the grill cabinet 8 is removed, and cooking exhaust exhausted from the grill cabinet 8 through the discharge port UB is provided at the rear of the grill cabinet 8. Is connected to the grill exhaust port 3 described above, but the description of the exhaust tube is omitted in FIGS.

A lower burner 12 is provided at the bottom of the grill cabinet 8, and an upper burner is provided at the ceiling of the grill cabinet 8, although not shown. That is, in this embodiment, the lower burner 12 and the upper burner are provided as the grill burner A for cooking.
The lower burner 12 is configured by diverting the above-described stove burner 1, and is configured as a so-called Bunsen burner.

  As shown in FIG. 3, a plate-like cover body 13 that covers the bottom wall portion of the grill cabinet 8 from above is provided so as to cover the lower burner 12, and the lower burner 12 passes through the opening in the center of the cover body 13. It is provided in a state of protruding upward.

  As shown in FIG. 3, a slide rail type rail mechanism B that extends and contracts in a posture in which the longitudinal direction is directed to the front-rear direction of the grill cabinet 8 is provided on each of the bottom side portions of the left and right side wall portions 8s of the grill cabinet 8. A door support plate 14 for mounting the grill door 10 is attached to the front end of the rail mechanism B, which is disposed below the body 13, and the grill door 10 is applied to the front side of the door support plate 14. In the state, it is configured to be mounted on the door support plate 14.

  As shown in FIG. 3, the container support frame 15 formed by bending a rod-like material in a form for placing and supporting the front edge portion and the rear edge portion of the grill pan 9 has a front end portion with respect to the door support plate 14. It is provided in a state in which it is supported so as to be swingable up and down, and the mounted portion 15 a at the rear end portion is slidably mounted on the rail frame 16 provided on the upper portion of the cover body 13.

That is, the cooking container support portion L is configured with the container support frame 15 and the grill door 10 for placing and supporting the grill pan 9 as main parts, and the door support plate 14 and the container support frame 15 for mounting the grill door 10 are provided. The left and right slide rail type rail mechanisms B are configured to be supported with respect to the grill box 8 so as to be freely retractable.
In addition, in the state which stored the cooking container support part L in the grill warehouse 8, the grill door 10 will close the entrance / exit UA of the grill warehouse 8. FIG.

(Structure of stove sensor)
As shown in FIGS. 5 and 6, the cylindrical support 21 in the stove sensor SC heats the cylindrical axis of the heated object existing side end portion adjacent to the existing area of the heated object K such as a pan. The object K is provided in a state along the direction of entering / exiting the existence area.

  That is, in this embodiment, as shown in FIG. 2, the existence area of the object to be heated K corresponds to an area on the upper side of Gotoku 4, and the existence area is heated such as a pot. Since the object K moves in and out while being moved in the vertical direction, the cylindrical axis of the heated object existence side end portion 21A adjacent to the existence region in the cylindrical support 21 is aligned in the vertical direction. A cylindrical support 21 is installed.

Moreover, the cylindrical support body 21 is formed in an L shape with its middle portion in the longitudinal direction bent so that it can be installed in a state where interference with the grill cabinet 8 and the like is avoided.
That is, the cylindrical support body 21 is formed in a form including the above-described heated object presence side end portion 21A and the separated side portion 21B positioned farther from the heated object existence side end portion 21A than the bent middle portion. The cylindrical axis of the heated object existence side end portion 21A is in a state along the vertical direction as described above, and the cylindrical axis of the separation side portion 21B is in a state along the horizontal direction. Has been.

  A protruding position where the detector 22 protrudes into the existence region by the movement of the heated object existence side end portion 21A along the cylindrical axis direction of the heated object existence side end portion 21A of the cylindrical support body 21 (FIG. 2, FIG. 5) and a retreating position (see FIG. 6) that retreats by contact with the heated object K that enters the existence area, and is provided in a state in which it can be repositioned and returned to the protruding position. .

The detection body 22 is equipped with a temperature detection section 23 that detects the temperature of the contact portion 22 </ b> T with the object K to be heated in the detection body 22.
A state in which the outer peripheral portion of the tubular support 21 that is away from the portion where the detector 22 is mounted, in the present embodiment, is opposed to the outer peripheral portion of the separated portion 21B in the circumferential direction of the tubular support 21. A reed switch 24 and a magnet 25 for applying a magnetic field to the reed switch 24 are provided. Of course, the magnet 25 is a permanent magnet.

Further, the inside of the cylindrical support 21 is arranged in a longitudinal direction of the cylindrical support 21 between a shielding action position (see FIG. 5) for shielding the magnetic force of the magnet 25 and a shielding release position (see FIG. 6) for releasing the shielding. A cylindrical shielding member 26 is provided that moves along the direction and switches the reed switch 24 between a closed state and an open state.
And the interlocking connection part R which connects the detection body 22 and the shielding member 26 interlock | cooperates, and switches the shielding member 26 to a shielding action position and a shielding release position with the movement of the protrusion position of the detection body 22 and a retraction position. Is provided.

Therefore, the stove sensor SC detects the presence or absence of the object to be heated K by closing or opening the reed switch 24, and determines the temperature of the contact portion 22T of the detection body 22 that contacts the object to be heated K. The temperature detection unit 23 detects the temperature of the bottom of K.
Incidentally, the detection information of the reed switch 24 and the detection information of the temperature detection unit 23 are input to an operation control unit (not shown) that controls the operation of the gas stove, and are used as control information for controlling the combustion of the stove burner 1. It will be.

(Details of stove sensor)
The cylindrical support 21 is made of a nonmagnetic material such as stainless steel (for example, SUS304).
As shown in FIGS. 5 and 6, the detection body 22 is externally fitted to a two-stage cylindrical main body portion 22A composed of a small diameter portion and a large diameter portion, and a large diameter portion of the main body portion 22A. A bottomed cylindrical tip member 22B that closes the tip end opening of 22A, and a flanged cylindrical sensor support portion 22C that is secured to the tip end portion of the main body portion 22A. Yes.
And the contact part 22T with the to-be-heated material K is comprised in the front end surface part of the bottomed cylindrical tip member 22B.

  A ring having an outer diameter that is larger than the inner diameter of the small diameter portion and slightly smaller than the inner diameter of the large diameter portion in the main body portion 22A of the detection body 22 at the end of the cylindrical support body 21 on the side where the detection body 22 is mounted. A coil spring 28 that biases the detection body 22 upward is disposed between the sensor support section 22C of the detection body 22 and the spring reception section 27 in a compressed state. .

  That is, when the step portion between the small diameter portion and the large diameter portion of the main body portion 22A is received by the spring receiving portion 27, the detection body 22 is in the protruding position described above, and the coil spring 28 is provided at the protruding position. As the heated object K such as a pan is placed on the virtues 4, it is configured to move back to the retracted position against the biasing force of the coil spring 28. ing.

  The temperature detector 23 is applied to the back surface of the contact portion 22T of the detector 22 and is held by a heat resistant resin filled in the sensor support portion 22C. It is stored in. The temperature detection unit 23 is configured using a temperature detection element such as a thermistor.

A temperature detection lead wire 29 extending from the temperature detection unit 23 is extended through the inside of the cylindrical support 21, and a temperature detection connector for connecting to the operation control unit is provided at the end of the temperature detection lead wire 29. 30 is provided.
The temperature detection lead wire 29 is covered with a heat-resistant tube 29A having heat resistance composed of a glass braided tube or the like.

  One end portion of a cord-like body 31 composed of a piano wire or the like is connected to the sensor support portion 22C of the detection body 22, and this cord-like body 31 extends through the inside of the cylindrical support body 21, and the cord A shielding member 26 is connected to the other end of the body 31. That is, the interlocking connecting portion R is configured by the cord-like body 31.

The cord 31 moves along the longitudinal direction of the cylindrical support 21 while curving along the bent shape of the cylindrical support 21 as the detector 22 moves in the vertical direction. Thus, the shield member 26 is configured to be moved along the longitudinal direction of the cylindrical support 21 with the movement of the cord-like body 31.
The shielding member 26 is formed in a cylindrical shape having a size covering the heat-resistant tube 29A of the temperature detection lead wire 29.

  As shown in FIG. 5, when the detection body 22 is located at the protruding position, the shielding member 26 is located at a shielding action position corresponding to between the reed switch 24 and the magnet 25, and the detection body 22 is heated. When retracted from the projecting position to the retracted position by contact with K, the shield member 26 is located at the shield release position that deviates from the position corresponding to between the reed switch 24 and the magnet 25, as shown in FIG. It is configured as follows.

In the present embodiment, the reed switch 24 is configured as a normally open type (normally open type) and is configured to be operated in a closed state (ON state) by a magnetic field applied by a magnet 25. .
That is, the reed switch 24 of the present embodiment has a moving value of 10 to 30 AT (ampere turn) and an open value of 5 AT (ampere turn) when the ambient temperature is normal temperature (for example, 20 ° C.).
When the ambient temperature is normal temperature (for example, 20 ° C.), a magnetic field of 20 AT (ampere turn) from the magnet 25 to the reed switch 24 when the shielding member 26 is located at the shielding release position (see FIG. 6). Is applied and a magnetic field of 1 AT (ampere turn) is applied from the magnet 25 to the reed switch 24 when the shielding member 26 is located at the shielding action position (see FIG. 5).

  Incidentally, in the present embodiment, the reed switch 24 is configured to be operated in a closed state (ON state) by a magnetic field having a magnetic field line along the cylindrical axis direction (longitudinal direction) of the cylindrical support 21. Therefore, the magnet 25 is installed in a state in which the N magnetic pole 25 n and the S magnetic pole 25 s at both ends are arranged along the cylindrical axis direction (longitudinal direction) of the cylindrical support 21, and the cylindrical axis direction of the cylindrical support 21 A magnetic field having magnetic lines of force along the (longitudinal direction) is applied to the reed switch 24.

  In addition, when using the reed switch of the form operated as the reed switch 24 by the magnetic field which has a magnetic force line along the radial direction of the cylindrical support body 21, the magnet 25 has N magnetic pole 25n and S magnetic pole 25s of both ends. It will be installed in a state of being aligned along the radial direction of the cylindrical support 21.

  Therefore, when the shielding member 26 is positioned at the shielding action position between the reed switch 24 and the magnet 25, the reed switch 24 is in an open state (OFF state), and conversely, the shielding member 26 is moved to the reed switch 24. The reed switch 24 is configured to be in a closed state (ON state) when positioned at a shield release position that is out of a position corresponding to between the magnet 25 and the magnet 25.

  A presence / absence detection lead wire 32 extending from the reed switch 24 extends along the cylindrical support 21, and a presence / absence detection connector 33 for connecting to the operation control unit is provided at an end of the presence / absence detection lead wire 32. Is provided.

(Cooking container detection configuration)
As shown in FIG. 3 and FIG. 4, the grill sensor 9 serving as the heating cooker detection device S is in a state where the cooking container support L is stored in the grill cabinet 8, that is, the grill plate 9 is inside the grill cabinet 8. In a state of being housed in the grill pan 9, the grill pan 9 is provided in contact with the rear end portion.
The grill sensor SG is configured in the same manner as the stove sensor SC. Therefore, the same reference numerals are given to the same members, and detailed description is omitted, and the installation configuration of the grill sensor SG will be described. .

That is, as shown in FIG. 3 and FIG. 4, a pair of left and right rear plates 8r forming a rear wall is provided at the rear part of the grill cabinet 8, and the rear plate 8r corresponding to the left side of these rear plates 8r A cylindrical sensor support frame 34 is provided, and a grill sensor SG is provided so as to be inserted through the inside of the sensor support frame 34.
In addition, the lower side part of the discharge port UB which discharges | emits cooking exhaust_gas | exhaustion is formed between a pair of right and left rear plates 8r.

The sensor support frame 34 is provided in a state of passing through the rear plate 8r in a horizontal posture along the inside / outside direction of the grill cabinet 8, and the heated object presence side end portion 21A of the cylindrical support 21 grills the cylinder axis. It is mounted inside the sensor support frame 34 in a state where it is directed in the horizontal direction along the front-rear direction of the cabinet 8.
That is, since the grill pan 9 as the heated object K is moved along the horizontal direction along the front-rear direction of the grill warehouse 8, the heated object existing side end portion 21A of the cylindrical support 21 is The shaft center is arranged in the moving direction of the grill pan 9.

  And the detection body 22 of the sensor SG for grills is located in the state which protrudes in the inside of the grill warehouse 8 rather than the cylindrical part 34A inside the cylindrical part 34A which protrudes in the inside of the grill warehouse 8 of the sensor support frame 34. The detection body 23 is configured to move backward by contact with the rear end of the grill pan 9 in a state where the grill pan 9 is housed inside the grill cabinet 8.

  That is, the inner side portion of the grill box 8 with respect to the cylindrical portion 34A of the sensor support frame 34 becomes an existence region where the grill pan 9 as the heated object K moves in and out while moving in the front-rear direction of the grill box 8, and is detected. The body 22 is configured to change its position to a protruding position that protrudes into the existence area and a retracted position that retreats by contact with the grill pan 9.

  As shown in FIG. 4, in a state where the detection body 22 is in contact with the rear end portion of the grill pan 9, the peripheral edge portion of the contact portion 22 </ b> T of the detection body 22 is in contact with the rear end portion of the grill pan 9. Since the center portion in the radial direction of the contact portion 22T to which the temperature detection portion 23 is applied is not in contact with the grill pan 9, the temperature detection portion 23 is installed at the location where the grill sensor SG is installed. Will be detected.

As shown in FIGS. 3 and 4, the reed switch 24 and the magnet 25 are held by a detection unit holder 35 supported by the stove body H.
Incidentally, the detection information of the reed switch 24 and the detection information of the temperature detection unit 23 are input to an operation control unit (not shown) that controls the operation of the gas stove. For example, when the grill pan 9 is not present, It is used as control information for controlling the combustion of the grill burner A, such as checking the combustion.

(Inspection method of detection device for cooking device)
Next, an inspection method of the heating cooker detection device S will be described with the stove sensor SC as a representative.
As shown in FIG. 7, a Helmholtz coil M is provided as an electric magnetic generator that applies a bias magnetic field that changes the strength of the magnetic field of the magnet 25 applied to the reed switch 24. An indicator N that displays the open / closed state of the reed switch 24 is connected to the presence / absence detection connector 33 at the end of the extending presence / absence detection lead 32.

The Helmholtz coil M is configured to include a pair of coil portions Cm arranged in the longitudinal direction (axial direction) of the cylindrical support 21 in a form of being supported by a common support base Dm.
And the electric power supply part MD which supplies electric power (direct current) to these pair of coil parts Cm, and can change and set supply electric power and the electricity supply direction is provided.
In the present embodiment, the Helmholtz coil M is illustrated as having a pair of coil portions Cm, but three or more coil portions Cm are arranged in the longitudinal direction (axial direction) of the cylindrical support 21. You may use what is provided with the form arranged in order.

  The Helmholtz coil M has a pair of coil portions Cm positioned at both sides of the reed switch 24 and the magnet 25 mounted on the cylindrical support 21 in the longitudinal direction (axial direction) of the cylindrical support 21, and The pair of coil portions Cm are disposed in the cylindrical support 21 so as to surround the reed switch 24 and the magnet 25 when viewed in the direction along the longitudinal direction (axial direction) of the cylindrical support 21.

  Incidentally, since the pair of coil portions Cm are arranged so as to surround the reed switch 24 and the magnet 25 mounted on the cylindrical support body 21, the reed switch 24 and the magnet mounted on the cylindrical support body 21 are arranged. The outer diameter corresponding to the outer circumference of 25 is formed in a state having a sufficiently larger inner diameter.

  The generated magnetic field JA generated by the magnet 25 and the magnetic field Ja applied to the reed switch 24 by the generated magnetic field JA are along the longitudinal direction (axial direction) of the cylindrical support 21 and in the opposite direction. Exists. Further, the bias magnetic field Jb applied by the Helmholtz coil M is configured to be in a direction along the longitudinal direction (axial direction) of the cylindrical support 21.

Incidentally, when the intensity of the magnetic field Ja applied to the reed switch 24 is decreased, the bias magnetic field Jb is a magnetic field opposite to the direction of the magnetic field Ja applied to the reed switch 24 as shown in FIG. When forming and increasing the strength of the magnetic field Ja applied to the reed switch 24, although not illustrated, a magnetic field having the same direction as the direction of the magnetic field Ja applied to the reed switch 24 is formed.
Note that the direction of the magnetic field of the bias magnetic field Jb can be set by changing the energization direction with respect to the coil portion Cm.

  When the operation test of the stove sensor SC is performed, the detection body 22 is switched between the projecting position and the retracted position with the bias magnetic field Jb applied, and the reed switch 24 is closed and opened. The switching will be confirmed.

  In other words, since the magnetic permeability of the magnetic material constituting the reed switch 24 decreases as the temperature rises above room temperature (for example, 20 ° C.), the moving value and the open value of the reed switch 24 are for the stove. As the ambient temperature of the sensor SC rises from room temperature (for example, 20 ° C.), the magnetic force formed by the magnet 25 rises from room temperature (for example, 20 ° C.). It decreases with it.

For example, when the ambient temperature of the stove sensor SC rises from 20 ° C. (normal temperature) to 60 ° C., the moving value of the reed switch 24 increases by 3 percent from 10-30 AT (ampere turns), and 10.3-30 .9AT (ampere turn), and the sensitivity of the reed switch 24 is reduced by 3% as shown in FIG.
Further, when the ambient temperature of the stove sensor SC rises from 20 ° C. (normal temperature) to 60 ° C., as shown in FIG. 8, the strength (magnetic force) of the magnetic field formed by the magnet 25 decreases by 7%. The magnetic field applied to the reed switch 24 by the magnet 25 is reduced from 20 AT (ampere turn) to 18.6 AT (ampere turn).

  Therefore, when the ambient temperature of the stove sensor SC rises from 20 ° C. (normal temperature) to 60 ° C., the reed switch 24 is changed from the closed state to the open state when the shielding member 26 is changed from the shielding release position to the shielding action position. Although it can be appropriately operated, it is difficult to operate the reed switch 24 from the open state to the closed state when the shielding member 26 is changed from the shielding action position to the shielding release position.

  In addition, since the magnetic permeability of the magnetic material constituting the reed switch 24 increases as the temperature drops from room temperature (for example, 20 ° C.), the moving value and the open value of the reed switch 24 are increased around the stove sensor SC. The temperature decreases as the temperature drops from room temperature (for example, 20 ° C.), and the strength (magnetic force) of the magnetic field formed by the magnet increases as the temperature drops from room temperature (for example, 20 ° C.). It will be.

That is, when the ambient temperature of the stove sensor SC is lowered from 20 ° C. (normal temperature), the moving value of the reed switch 24 is lowered and the sensitivity of the reed switch 24 is raised (see FIG. 9).
Further, when the ambient temperature of the stove sensor SC falls from 20 ° C. (room temperature), the strength of the magnetic field (magnetic force) formed by the magnet 25 increases as shown in FIG. The magnetic field applied to 24 varies from 20 AT (ampere turn) to an increased value.

  Therefore, when the ambient temperature of the stove sensor SC falls from, for example, 20 ° C. (room temperature) to 0 ° C., the reed switch 24 is closed from the open state when the shielding member 26 is repositioned from the shielding action position to the shielding release position. Although it can be appropriately operated depending on the state, it is difficult to operate the reed switch 24 from the closed state to the open state when the shielding member 26 is repositioned from the shielding release position to the shielding action position.

  Therefore, when performing an operation test corresponding to a state where the ambient temperature of the stove sensor SC is higher than normal temperature (for example, 20 ° C.), a magnetic field applied to the reed switch 24 by the magnet 25 with the bias magnetic field Jb. In the case where the strength of Ja is decreased and an operation inspection corresponding to a state where the ambient temperature of the stove sensor SC is lower than the normal temperature is performed, the bias 25 is applied to the reed switch 24 by the magnet 25 with the magnetic field Jb. Whether or not the reed switch 24 is appropriately switched between the closed state and the open state while changing the position of the detection body 22 between the protruding position and the retracted position with the strength of the magnetic field Ja being increased. Will be confirmed.

In other words, the bias magnetic field Jb changes the strength and direction of the magnetic field applied to the reed switch 24 by the magnet 25 according to the change in the ambient temperature of the stove sensor SC and the sensitivity of the reed switch 24 and the magnet 25. Whether or not the reed switch 24 is appropriately switched between the closed state and the open state while changing the position of the detection body 22 between the protruding position and the retracted position in a state where the strength and direction are set according to the magnetic force. An operation inspection will be performed to confirm the above.
Incidentally, the strength and direction of the bias magnetic field Jb generated by the Helmholtz coil M are changed by changing the magnitude and energization direction of the power supplied from the power supply unit MD to the pair of coil units Cm.

[Another embodiment]
Next, another embodiment is listed.
(1) In the above embodiment, the case where the bias magnetic field Jb is applied by the Helmholtz coil M has been exemplified. For example, an electromagnet is disposed on the side of the magnet 25 and the bias magnetic field Jb is applied by this electromagnet. For example, the specific configuration for applying the bias magnetic field Jb can be variously changed.

(2) In the above embodiment, when the ambient temperature of the cooking device detection device S rises from normal temperature (for example, 20 ° C.) to a high temperature (for example, 60 ° C.), and the ambient temperature of the cooking device for detection device S However, the case where the operation test is performed for any of the cases where the temperature is lowered from room temperature (for example, 20 ° C.) to the low temperature (for example, 0 ° C.) is illustrated, but the ambient temperature of the heating cooker detection device S is room temperature (for example, , 20 ° C.) when the ambient temperature of the heating cooker detection device S decreases from room temperature (eg, 20 ° C.) to a low temperature (eg, 0 ° C.), compared to when the temperature rises from high temperature (eg, 60 ° C.). Therefore, as an operation test, the ambient temperature of the heating cooker detection device S is increased from a normal temperature (for example, 20 ° C.) to a high temperature (for example, 60 ° C.). Only do Unishi may be.

(3) In the above-described embodiment, the case where the intensity and direction of the bias magnetic field Jb can be changed and set is exemplified. However, for example, the ambient temperature of the heating cooker detection device S is predicted to be high from normal temperature (for example, 20 ° C.). In the case where only the operation inspection is performed when the temperature rises to (for example, 60 ° C.), the ambient temperature of the heating cooker detection device S is predicted to be high from the normal temperature (for example, 20 ° C.) (for example, 60 ° C.). However, the present invention may be implemented in such a manner that only the bias magnetic field Jb corresponding to the rise is generated.

(4) In the above embodiment, the case where the temperature detection unit 23 provided in the grill sensor SG detects the ambient temperature at the location where the grill sensor SG is installed has been illustrated, but the center of the contact portion 22T of the detection body 22 is illustrated. A portion may be brought into contact with the grill pan 9 so that the temperature detector 23 can detect the temperature of the grill pan 9.

(5) In the above embodiment, the case where the cylindrical support body 21 of the detection device S for a heating cooker is formed in an L shape is exemplified, but also when the cylindrical support body 21 is formed in a linear shape, The present invention is applicable.

(6) In the above embodiment, the case where the interlocking connecting portion R is configured by the cord-like body 31 with a flexible linear material that can accurately push and pull the shielding member 26 is exemplified. The shield member 26 may be supported by the heat-resistant tube 29A that covers the lead wire 29, and the interlocking connecting portion R may be configured by the heat-resistant tube 29A.

(7) In the above embodiment, as the reed switch 24, a normally open type reed switch that is closed when the magnetic field of the magnet 25 acts is exemplified. However, as the reed switch 24, the reed switch 24 opens when the magnetic field of the magnet 25 acts. You may use the normally closed reed switch which will be in a state.
In this case, the detection body 22 is positioned so that the shielding member 26 is positioned at the shielding release position when the detection body 22 is in the protruding position, and is positioned at the shielding action position when the detection body 22 is in the retracted position. And the shielding member 26 are interlocked to each other, and the reed switch 24 may be operated to be closed when the detection body 22 is pressed by the article to be heated K and moved to the retracted position.

(8) In the above embodiment, the grill pan 9 is exemplified as the heated object K heated by the grill G. However, as the heated object K heated by the grill G, various objects such as a container with a lid are available. Is applicable.

(9) In the above embodiment, the gas stove provided with the grill G is exemplified as the cooking device provided with the detection device S for the heating cooker. However, the inspection method of the present invention is a gas stove not equipped with the grill G, a grill dedicated machine, etc. The inspection method of the present invention can be applied to various cooking devices including the cooking device detection device S.

  Note that the configurations disclosed in the above-described embodiments (including other embodiments, the same applies hereinafter) can be applied in combination with the configurations disclosed in the other embodiments as long as no contradiction arises. The embodiment disclosed in this specification is an exemplification, and the embodiment of the present invention is not limited to this. The embodiment can be appropriately modified without departing from the object of the present invention.

21 cylindrical support body 22 detection body 22T contact part 23 temperature detection part 24 reed switch 25 magnet 26 shielding member 31 cord-like body Ja magnetic field Jb bias magnetic field K object to be heated M Helmholtz coil R interlocking connection part

Claims (5)

A cylindrical support provided in a state in which the cylindrical axis of the heated object existence side end portion adjacent to the existence area of the article to be heated is provided in a state where the article to be heated is placed in and out of the existence area;
Positioned on the heated object existence side end portion at a protruding position that protrudes into the existence area by movement in the direction along the cylinder axis and a retreat position that retreats by contact with the heated object that enters the existence area A detector that can be changed and is provided in a state of being biased back to the protruding position;
A temperature detection unit that is mounted on the detection body and detects a temperature of a contact portion with an object to be heated in the detection body;
Applying a magnetic field to the reed switch and the reed switch provided on the outer peripheral portion of the cylindrical support body facing away from the portion where the detection body is mounted in the circumferential direction of the cylindrical support body A magnet to play,
The inside of the cylindrical support is moved along the longitudinal direction of the cylindrical support to a shielding action position for shielding the magnetic force of the magnet and a shielding release position for releasing the shielding, and the reed switch is closed. A shielding member that switches between a state and an open state;
An interlocking connecting portion that interlocks and connects the detection body and the shielding member, and switches the shielding member between the shielding action position and the shielding release position in accordance with the movement of the detection body between the protruding position and the retraction position. And an inspection method for a detection device for a heating cooker provided with
With the bias magnetic field changing the strength of the magnetic field applied to the reed switch applied, the detector is switched between the projecting position and the retracted position, and the reed switch is closed and opened. Inspection method of detection device for cooking device to confirm switching. The cylindrical support is formed in an L shape having a bent middle portion in the longitudinal direction,
The interlocking connecting portion is disposed inside the cylindrical support body, and the shielding member is moved to the shielding action position and the shielding release position along with the movement of the detection body between the projecting position and the retraction position. It is composed of a flexible cord-like body that is pushed and pulled.
The detection device for a heating cooker according to claim 1, wherein the reed switch and the magnet are provided on an outer peripheral portion of a separation side portion that is farther from the heated object existence side end portion than the intermediate portion of the cylindrical support. Inspection method.   The inspection method of the detection apparatus for a heating cooker according to claim 1 or 2, wherein the intensity of the magnetic field applied to the reed switch is decreased by the bias magnetic field.   The inspection method of the detection apparatus for a heating cooker according to claim 1 or 2, wherein the intensity of the magnetic field applied to the reed switch is increased by the bias magnetic field.   The inspection method of the detection apparatus for heating cookers according to any one of claims 1 to 4, wherein the bias magnetic field is applied by a Helmholtz coil.

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