JP6239914B2 - Gas stove - Google Patents

Description

  The present invention is a gas stove.

  Conventionally, a gas stove provided with a temperature sensor that passes through a through-hole penetrating the center of the burner portion, faces upward, is urged by an upward urging force, abuts against the bottom of the cooking container, and detects the temperature thereof. It is known (see, for example, Patent Document 1).

  In the conventional example shown in Patent Document 1, a small-diameter step portion having a small inner diameter is provided in the upper portion of the through hole of the burner portion. The temperature sensor includes a ring-shaped flange that is positioned below the burner cover and extends radially outward from the entire circumference of the temperature sensor. In the state where the temperature sensor is pushed down with the cooking container placed thereon, the collar is separated from the small-diameter step portion of the through-hole, and in the state where the temperature sensor is biased upward without contacting the cooking container. The contact hole is configured to contact the small-diameter step portion of the through hole and close the gap between the through hole and the temperature sensor.

JP 2012-102938 A

  In the conventional example shown in the above-mentioned Patent Document 1, when the cooking container is not placed, the heat shield cover (sensor cover) is applied to the hole of the burner cap constituting the burner portion by the biasing force of the spring. If the urging force is too strong due to, for example, component variations due to contact, the cooking container will rise to the temperature by lifting from the burner head (burner body) that constitutes the burner part on which the burner cap is placed. There is a possibility that the combustion in a state where the sensor is not pushed down may be deteriorated, and there is room for improvement.

  Further, in the conventional example shown in Patent Document 1, when the center of the temperature sensor and the center of the burner cap are eccentric due to, for example, variations during manufacture, the burner cap is the burner head (burner body). Before it is properly placed on the burner, it will contact the sensor cover and the burner cap will not be properly placed on the burner head (burner body), which may worsen the combustion and there is room for improvement. Met.

  The present invention has been invented in view of the above-mentioned conventional problems, and the object of the present invention is to burner covers formed around the temperature sensor in order to prevent foreign substances from entering the gas stove. In a gas stove with a temperature sensor equipped with a collar (shield sensor cover) to close the gap between the cooking pot and the cooking container such as a pan is not designed to push down the temperature sensor (unused state) It is to improve and to suppress the influence of component variations and manufacturing variations, thereby enabling stable combustion.

In order to solve the above-mentioned problem, the present invention passes through a through-hole 50 that vertically passes through the center of an annular burner portion having a flame hole 28 formed on the outer periphery from the bottom to the top and faces upward. A temperature sensor 1 that is energized by the energizing force and abuts against the bottom of the cooking container A to detect its temperature; a burner cover 52 that covers the upper surface of the burner part and includes an insertion port 53 through which the temperature sensor 1 is inserted; The temperature sensor 1 includes a ring-shaped flange 14 that is positioned below the burner cover 52 and extends in the radially outward direction of the temperature sensor 1, and the ring-shaped flange 14. The outer dimension of the burner cover 52 is configured to be larger than the inner diameter dimension of the insertion port 53, and the burner cover 52 is movable in a vertical direction and a horizontal direction with respect to the mounting part provided in the burner part via a predetermined clearance. Concluded Ring-shaped eaves portion 14 by the biasing force in the upward direction is brought into contact with the lower surface of the burner cover 52, the upper surface of the ring-shaped eaves portion 14, the projection 15 is protruded upward, the ring-shaped overhang portion When 14 is close to the lower surface of the burner cover 52, the convex portion 15 is fitted into the insertion port 53, and the upper surface 15a of the convex portion 15 and the upper surface 52a of the burner cover 52 at the periphery of the insertion port 53 are flush with each other. Alternatively, the upper surface 15 a of the convex portion 15 is located above the upper surface 52 a of the burner cover 52 at the periphery of the insertion port 53 .

In this way, by providing the ring-shaped flange 14, the hole around the temperature sensor 1 is closed, so that the appearance design is a beautiful and well-designed burner , and the cooking container A such as a pan is provided. In the state where the temperature sensor 1 is not pushed down, it is possible to suppress entry of foreign matter into the gas stove 2 from the periphery of the temperature sensor 1. Further, since the burner cover 52 is fastened to the mounting portion provided in the burner portion in a vertical direction and a horizontal direction so that the burner cover 52 can be moved in a vertical direction and a horizontal direction, there is no variation in parts or manufacturing variation. Even in such a case, it is possible to prevent the components constituting the burner portion from being displaced due to an excessive external force being applied to the burner portion, so that deterioration of combustion can be prevented.

Furthermore, by providing the projection 15, when the ring-shaped overhanging portion 14 abuts against the lower surface of the burner cover 52, and fitted convex portion 15 into the insertion opening 53 provided in the burner cover 52, the temperature sensor If the upper surface of the peripheral edge of the insertion hole 53 around 1 is closed to be flush with each other , the appearance design becomes more beautiful, and spillage from the cooking container A is suppressed from being stored in the vicinity of the insertion hole 53, so that it is easy to maintain. Will improve. Further, when the cooking container A abuts on the temperature sensor 1 from the lateral direction, the lateral movement of the temperature sensor 1 is restricted by the abutment between the convex portion 15 fitted in the insertion port 53 and the periphery of the insertion port 53. As a result, the attachment of the temperature sensor 1 to the gas stove 2 is prevented from being deformed and the temperature sensor 1 is prevented from being tilted, or foreign matter (moisture) can move in the radially outward direction of the insertion port 53. It is promoted and it becomes possible to prevent the foreign substance from entering the gas stove 2 more reliably.

  Moreover, it is preferable that the heat radiator 17 is formed on the lower surface of the ring-shaped flange portion 14.

  Thus, since the heat radiating body 17 is formed on the lower surface of the ring-shaped flange 14, the cooling of the temperature sensor 1 is promoted, and the temperature of the cooking container A is detected more accurately even when heated by the stove burner 3. It becomes possible to do.

  Moreover, it is preferable that a plurality of grooves 16 be radially engraved on the lower surface of the ring-shaped flange 14 to form the heat radiating body 17.

  In this way, the heat radiating body 17 can be easily formed simply by engraving the plurality of grooves 16 radially on the lower surface of the ring-shaped flange 14.

  In the gas stove of the present invention, the influence of component variations and manufacturing variations is suppressed, and stable combustion becomes possible.

It is a top view of the gas stove of one Embodiment of this invention. It is a sectional side view of the vicinity of the stove burner in embodiment same as the above. It is a sectional side view of the temperature sensor vicinity in the state which the cooking container has not pushed down the temperature sensor in embodiment same as the above. It is side sectional drawing of the temperature sensor vicinity in the state which the cooking container is pushing down the temperature sensor in embodiment same as the above. It is a bottom view of the collar part in embodiment same as the above. It is the perspective view seen from diagonally downward of the burner cap in embodiment same as the above. It is a sectional side view of the temperature sensor vicinity explaining the effect | action in embodiment same as the above. It is a sectional side view of the temperature sensor vicinity explaining the effect | action in other embodiment.

  Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 shows a gas stove 2 having a temperature sensor 1 for detecting the temperature of the pan bottom. The gas stove 2 is provided with a burner opening 22 (see FIG. 2) on a top plate 21 covering the upper surface of the stove body 20. The stove burner 3 disposed in the stove main body 20 faces the burner opening 22. A virtues 23 are placed on the top plate 21 so as to surround the stove burner 3.

  As shown in FIGS. 1 to 4, the stove burner 3 is provided with a temperature sensor 1 for detecting the temperature of the pan bottom, attached to the gas stove 2. In addition, the temperature sensor 1 is provided in the gas stove 2, and is urged | biased upward by the urging means which is not shown consisting of a coil spring.

  And this gas stove 2 heats the cooking container A (refer FIG. 4) mounted on the virtues 23 with the flame of the stove burner 3, and the temperature sensor 1 contacts the bottom part of the cooking container A, and the cooking container A The temperature is detected.

  The gas stove 2 in the present embodiment is a gas table stove with a grill provided with a grill at the center in the left-right direction, and as shown in FIG. 1, a grill door that opens and closes a grill door provided on the front of the grill on the front of the grill. A grill exhaust port 25 for discharging exhaust gas from the grill is provided behind the top plate 21 with a handle 24.

  Further, on the front surface of the gas stove 2, a point fire extinguishing operation unit 26 a for performing point extinguishing of the left stove stove burner 3 a, a point fire extinguishing operation unit 26 b for performing point extinguishing of the right stove stove burner 3 b, and A point fire extinguishing operation part 26c for performing point fire extinguishing of a grill burner provided in a grill (not shown) is provided.

  Note that, as an embodiment, a gas table stove with a grill will be described as an example. However, the present invention is not limited to a gas table stove with a grill, and an opening provided on an upper portion of a gas stove or a kitchen counter without a grill. The present invention can also be applied to a drop-in type gas stove that is installed in the factory.

  As shown in FIG. 2, the stove burner 3 includes a mixing tube 41 that mixes gas as fuel and primary air, an annular burner body 4 that is continuous with the mixing tube 41, and a burner that is placed on the burner body 4. And a cap 5.

  The outer peripheral surface of the burner body 4 is fitted into a burner insertion hole 27 a of a burner ring 27 attached to the burner opening 22 of the top plate 21. On the burner body 4, a burner cap 5 having a large number of flame holes 28 (see FIG. 6) formed on its outer peripheral side surface is detachably mounted, and the burner body 4 and the burner cap 5 constitute a burner part.

  As shown in FIG. 6, the burner cap 5 is formed in a substantially disk shape, and a through hole 50 is provided in the center thereof, and the temperature sensor 1 (FIG. 3) that detects the temperature of the pan bottom in the through hole 50. Etc.) are inserted from bottom to top.

  As shown in FIG. 6, the burner cap 5 has a large number of gas rectifying grooves 51 formed radially on the lower surface, and is supplied from the burner body 4 with the burner cap 5 placed on the burner body 4. The air-fuel mixture passes through the gas rectifying groove 51 and is ejected from the end portion of the gas rectifying groove 51 on the outer peripheral side surface of the burner cap 5 to burn, thereby forming a flame.

  That is, the end of the gas rectifying groove 51 formed radially on the lower surface of the burner cap 5 on the outer peripheral side surface of the burner cap 5 constitutes the flame hole 28. In the present embodiment, the flame hole 28 is provided in the burner cap 5, but it may be provided on the burner body 4 side. Further, around the burner cap 5, a thermocouple (not shown) as a flame detector and a spark plug 29 (see FIG. 2) are arranged.

  As shown in FIGS. 2, 3, and 4, the temperature sensor 1 that detects the temperature of the pan bottom is inserted into the central through hole 50 of the burner cap 5, and there is a gap between the through hole 50. Established. The temperature sensor 1 is arranged such that the upper end is higher than the upper surface of the virtues 23 and comes into contact with the bottom of the cooking container A placed on the virtues 23 to detect the temperature. The temperature sensor 1 is composed of a support pipe 11 erected in the inner space of the burner body 4 and a heat sensitive part 12 provided at the upper end of the support pipe 11.

  The support pipe 11 is fixed to a support plate (not shown) for the stove burner 3. A heat sensitive element (not shown) such as a thermistor for detecting the temperature of the cooking container A is attached inside the heat sensitive part 12 that contacts the bottom of the cooking container A. The detected temperature signal of the cooking container A detected by the heat sensitive unit 12 is input to a control unit (not shown) via a lead wire (not shown). The control unit controls the heating power of the stove burner 3 based on the detected temperature signal of the cooking container A detected by the heat sensitive unit 12.

  The support pipe 11 is urged upward by a coil spring as an urging means (not shown), and when the cooking container A is not placed on the virtues 23, the upper end of the temperature sensor 1 is shown in FIG. That is, the upper end position of the heat sensitive part 12 is located at a cooking container absence position higher than the upper end of the virtues 23. When the cooking container A is placed on the virtues 23, as shown in FIG. 4, the heat sensitive part 12 comes into contact with the bottom of the cooking container A indicated by a broken line in FIG. The upper end of the temperature sensor 1, that is, the upper end position of the heat sensitive part 12 is positioned at a cooking container presence position that is substantially the same height as the upper end of the virtues 23 shown in FIG. 2.

  Incidentally, as shown in FIG. 2, a switch 13 that is turned ON / OFF according to the vertical position of the support pipe 11 is provided, and the temperature sensor 1 is provided according to whether the cooking container A is placed on the virtues 23 or not. Corresponding to the vertical movement, the switch 13 is turned ON / OFF, and an ON / OFF signal of the switch 13 is input to a control unit (not shown). The control unit places the cooking container A on the virtues 23 and does not place it. The control unit performs fire extinguishing and heating power control of the stove burner 3 in accordance with detection of placement or non-placement.

  Here, the gas stove 2 according to the present embodiment is configured such that when the stove burner in which the cooking container A is not disposed on the virtues 23 is not used, foreign matters (see FIG. 7) such as various flying objects B and water droplets W from the cooking container A are burner. The inside of the stove main body 20 is prevented from entering from the through hole 50 provided in the cap 5, and this point will be described below.

  As shown in FIGS. 2 to 4, the upper surface of the burner cap 5 covers the upper surface of the burner cap 5 at a predetermined distance from the burner cap 5, and is located at a position corresponding to the through hole 50 provided in the burner cap 5. A burner cover 52 having an insertion port 53 through which the temperature sensor 1 is inserted is disposed.

  Further, the temperature sensor includes a ring-shaped flange 14 (shield sensor cover) that is positioned below the burner cover 52 and extends in the radially outward direction of the temperature sensor 1, and the outer shape of the ring-shaped flange 14. The dimension is configured to be larger than the inner diameter dimension of the insertion port 53.

  By providing the ring-shaped flange 14, the insertion opening 53 is closed at the periphery of the temperature sensor 1, the appearance design is beautiful and the design is good, and the cooking container A is the temperature sensor 1. It is possible to suppress the flying object B from entering the gas stove 2 from the periphery of the temperature sensor 1 in a state where the pressure is not depressed.

  Further, as shown in FIGS. 3 and 4, when the convex portion 15 protrudes upward on the upper surface of the ring-shaped flange portion 14 and the ring-shaped flange portion 14 comes close to the lower surface of the burner cover 52. Then, the convex portion 15 is fitted into the insertion port 53, and the upper surface 15 a of the convex portion 15 and the upper surface 52 a of the burner cover 52 at the periphery of the insertion port 53 are flush with each other.

  By providing the convex portion 15, when the ring-shaped flange portion 14 comes close to the lower surface of the burner cover 52, the convex portion 15 is inserted into the insertion port 53 provided in the burner cover 52, and the periphery of the temperature sensor 1 is inserted. Since the upper surface of the peripheral edge of the mouth 53 is closed to be flush with each other, the appearance design is beautiful, and spillage from the cooking container A is suppressed from being stored around the insertion opening 53, so that the gas stove 2 can be maintained easily. improves.

  Further, when the cooking container A abuts from the lateral direction of the temperature sensor 1, the lateral movement of the temperature sensor 1 causes the abutment between the outer periphery of the convex portion 15 fitted into the insertion port 53 and the peripheral edge of the insertion port 53. Therefore, the temperature sensor 1 is prevented from being tilted due to deformation of the attachment portion of the temperature sensor 1 to the gas stove 2.

  Note that the burner cover 52 is attached to the burner cover 3 of the burner cover 52 by a fixture so that the burner cover 52 can be moved in the vertical direction and the horizontal direction with respect to a mounting portion (not shown) provided in the burner 3. When the cooking container A is not placed, the outer peripheral upper surface of the ring-shaped flange portion 14 is the lower surface of the burner cover 52 when the cooking container A is not placed. Abut.

  Since the burner cover 52 is provided so as to be movable in the vertical direction and the horizontal direction with respect to the mounting portion provided in the stove burner 3, the outer peripheral upper surface of the ring-shaped flange 14 is urged by the biasing force of the coil spring. Even when there is a variation in parts or manufacturing variations when abutting against the lower surface of 52, the burner cap 5, which is a component constituting the burner, is displaced by applying an excessive external force to the stove burner 3. Therefore, it is possible to prevent the deterioration of combustion due to the deviation of the parts constituting the burner.

  In the present embodiment, as shown in FIG. 5, a radial groove 16 is formed on the lower surface of the ring-shaped flange 14, and the radial groove 16 radiates heat from the ring-shaped flange 14. Promoted, the radial grooves 16 constitute a heat dissipating body 17.

  Since the heat radiating body 17 is formed on the lower surface of the ring-shaped bowl 14, the cooling of the temperature sensor 1 is promoted, and the temperature of the cooking vessel A can be detected more accurately even when heated by the stove burner 3. become.

  In the present embodiment, heat radiation is simply formed by simply forming a plurality of radial grooves 16 on the lower surface of the ring-shaped flange 14, and the manufacturing cost can be reduced.

  In addition, you may comprise the heat radiator 17 by a fin.

  Since it is configured as described above, as shown in FIG. 7, even when the flying object B falls around the temperature sensor 1 in the non-placed state of the cooking container A that is an unused state of the gas stove 2, Since the flying object B is received by the ring-shaped collar 14, the flying object B is prevented from entering the inside of the gas stove 2, and the cooking container A is placed in a state where the cooking container A is used. When the broth spilled from A falls down to the periphery of the temperature sensor 1 along the bottom of the cooking container A, the broth is received by the ring-shaped bowl 14 so that the broth enters the gas stove 2. Is suppressed and the inside of the gas stove 2 is kept clean.

  In addition, when the cooking container A is not placed on the virtues 23, the upper surface 15a of the convex portion 15 projecting from the upper surface of the ring-shaped flange 14 in plan view and the burner cover 52 are not mounted. Since it becomes flush | flush in the periphery of the insertion port 53, the appearance of the gas stove 2 is good.

  More specifically, as shown in FIG. 4, when the gas stove 2 in which the cooking container A is placed is used, the temperature sensor 1 is pushed down by the cooking container A so that the ring-shaped flange 14 becomes the lower surface of the burner cover 52. 4, the air flow F in the stove body 20 flows between the ring-shaped flange 14 and the burner cover 52 through the through-hole 50 as shown by the arrows in FIG. Thus, the temperature sensor 1 is prevented from being overheated by the heat from the stove burner 3, and erroneous detection of the temperature of the cooking container A by the temperature sensor 1 can be prevented.

  Next, another embodiment will be described below with reference to FIG. In the following description, the same components as those in the above embodiment are denoted by the same reference numerals, description thereof is omitted, and different components are mainly described.

  You may comprise so that the convex part 15 may be located a little above the upper surface 52a of the burner cover 52 in the non-mounting state of the cooking container A in which the cooking container A is not mounted on the virtues 23. By configuring in this way, foreign matters such as flying objects B and water droplets W are promoted to move in the radially outward direction of the insertion port 53, and it is possible to more reliably prevent foreign matters from entering the gas stove 2. become.

  As still another embodiment, in any of the above embodiments, the surface of the ring-shaped flange 14 may be subjected to a surface treatment such as a water repellent coating. By comprising in this way, it becomes possible to prevent more reliably the entry of foreign objects such as flying objects B and water droplets W from the insertion port 53 into the instrument.

  In any of the above embodiments, the outer peripheral upper surface of the ring-shaped flange portion 14 abuts the lower surface of the burner cover 52 by the biasing force of the coil spring when the cooking container A is not placed. It is. On the other hand, as still another embodiment, the outer peripheral upper surface of the ring-shaped flange 14 does not contact the lower surface of the burner cover 52 by the biasing force of the coil spring in the non-placed state of the cooking container A, A gap may be formed between the outer peripheral upper surface of the ring-shaped flange 14 and the lower surface of the burner cover 52 so as to be sealed with water so that water does not enter the stove body 20.

DESCRIPTION OF SYMBOLS 1 Temperature sensor 11 Support pipe 12 Heat sensitive part 13 Switch 14 Eaves part 15 Convex part 16 Groove 17 Radiator 2 Gas cooker 20 Stove body 21 Top plate 22 Burner opening 23 Gotoku 24 Grill door handle 25 Grill exhaust port 26a Point-extinguishing operation part 26b Point fire extinguishing operation part 26c Point fire extinguishing operation part 27 Burner ring 27a Burner insertion hole 28 Flame hole 29 Spark plug 3 Stove burner *
3a Stove burner for left stove 3b Stove burner for right stove 4 Burner body (burner section)
41 Mixing tube 5 Burner cap (burner part)
50 Through-hole 51 Gas straightening groove 52 Burner cover 53 Insertion hole A Cooking container B Flying object (foreign matter)
F Air flow W Water drop (foreign matter)

Claims (3)

A through-hole that passes through the center of an annular burner portion with a flame hole formed on the outer periphery passes vertically from bottom to top and faces upward, and is urged by the upward biasing force to hit the bottom of the cooking vessel. A temperature sensor that contacts and detects the temperature;
A gas stove that covers the upper surface of the burner part and has a burner cover that includes an insertion port through which the temperature sensor is inserted,
The temperature sensor includes a ring-shaped flange that is positioned below the burner cover and extends in a radially outward direction of the temperature sensor,
An outer dimension of the ring-shaped flange is configured to be larger than an inner diameter dimension of the insertion port,
The burner cover is fastened through a predetermined clearance by a fixture so that the burner cover can move in the vertical direction and the horizontal direction with respect to the mounting portion provided in the burner portion, and the ring is applied by the upward biasing force. Jo overhang portion is brought into contact with the lower surface of the burner cover,
On the upper surface of the ring-shaped collar part, a convex part projects upward, and when the ring-shaped collar part approaches the lower surface of the burner cover, the convex part fits into the insertion port, and The upper surface of the convex portion and the upper surface of the burner cover at the periphery of the insertion port are flush with each other, or the upper surface of the convex portion is located above the upper surface of the burner cover at the periphery of the insertion port. Gas stove. Gas stove according to claim 1, wherein Rukoto heat radiator formed on the lower surface of the ring-shaped eaves portion. The gas stove according to claim 2, wherein the heat radiator is formed by radially cutting a plurality of grooves on a lower surface of the ring-shaped flange .

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