JP2009236449A - Gas stove - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To bring a pot bottom temperature sensor abutting on a bottom face center part of a cooking vessel without forming a burner in an annular shape in a gas stove equipped with the burner 2 projecting above a top panel 1, a trivet 4 disposed on the top panel 1, and the pot bottom temperature sensor 5 abutting on the bottom face of the cooking container placed on the trivet 4. <P>SOLUTION: The trivet 4 includes a central connecting part 41 positioned above the burner 2, and a plurality of trivet claws 42 extending in the radial direction from the central connecting part 41. The central connecting part 41 of the trivet 4 is recessed further downward than an upper edge of a portion of the trivet claws 42 on which the cooking container is placed, and the pot bottom temperature sensor 5 is mounted on the central connecting part 41. A hollow part for inserting a signal line 52 from the pot bottom temperature sensor 5 is formed in a predetermined trivet claw 42A. A connecting part 6 for separably connecting the signal line 52 to a signal line 53 provided in a stove body 3 is provided to a portion of the top panel 1 where a leg part 43 of the predetermined trivet claw 42A is seated. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention detects the temperature of the cooking container by contacting the burner protruding above the top plate covering the upper surface of the stove body, the virtues arranged on the top plate, and the bottom surface of the cooking container placed on the virtues The present invention relates to a gas stove including a pan bottom temperature sensor.

  Conventionally, in a gas stove provided with a pan bottom temperature sensor, a burner is formed in an annular shape, and the pan bottom temperature sensor is erected in the inner circumferential space of the burner (see, for example, Patent Document 1). According to this, the pan bottom temperature sensor is located at the center of the burner. And since a cooking container is mounted in Gotoku so that it may become concentric with a burner, a pot bottom temperature sensor contacts the bottom center part of a cooking container, and can detect the temperature of a cooking container appropriately.

However, in this case, since the burner is formed in an annular shape, the boiled juice may fall into the stove body through the inner circumferential space of the burner.
JP-A-11-94245

  This invention makes it the subject to provide the gas stove which made the bottom | bottom bottom temperature sensor contact | abut to the bottom face center part of a cooking vessel, without forming a burner annularly in view of the above point.

  In order to solve the above problems, the present invention relates to a burner protruding above the top plate covering the top surface of the stove body, the five victories arranged on the top plate, and the bottom surface of the cooking container placed on the five victories. In a gas stove comprising a pan bottom temperature sensor that detects the temperature of a cooking container in contact with the gas stove, the Gotoku comprises a central coupling part located above the burner and a plurality of five virtue claws extending radially outward from the central coupling part It is characterized in that the central joint portion of the virtues is recessed below the upper edge of the portion of the virtuos claw where the cooking container is placed, and a pan bottom temperature sensor is attached to the central joint portion.

  According to the present invention, since the pan bottom temperature sensor is attached to the central coupling portion of the virtues, the pan bottom temperature sensor abuts on the bottom center portion of the cooking vessel placed on the virtues, and the temperature of the cooking vessel is appropriately detected. Is done. And it is not necessary to form a burner cyclically | annularly, and it can prevent that boiled juice falls in a stove main body via the inner peripheral space of a burner.

  Further, in the present invention, a hollow portion through which the signal line from the pan bottom temperature sensor is inserted is formed in a predetermined virtuosity claw among the plurality of virtuosity claws, and a leg portion at a radially outer end of the predetermined virtuosity claw is seated It is desirable that a connecting portion for detachably connecting the signal line inserted into the hollow portion and the signal line provided in the stove main body is provided in the top plate portion. According to this, the signal line is not exposed to the outside above the top plate, the signal line is protected and the appearance is improved. In addition, the signal line on the virtuosity side and the signal line in the stove body are separated at the connection part, so when cleaning the top plate, etc., the virtues can be removed without being restrained by the signal lines, and the maintainability is also good. Become.

  In this case, it is desirable to permit combustion in the burner only when the signal line inserted through the hollow portion and the signal line provided in the stove body are connected. According to this, the burner burns in a state where both signal lines are not connected due to a wrong set of five virtues, that is, in a state where control based on the temperature detected by the pan bottom temperature sensor is not performed, and overheating of the cooking container occurs. Can be prevented.

  Referring to FIG. 1, reference numeral 1 denotes a glass top plate that covers the upper surface of a stove main body 3 (see FIG. 2) of a gas stove, and 2 denotes a burner. As shown in FIG. 2, the burner 2 is composed of a mixing tube 21 installed in the stove body 3, a burner body 22 protruding above the top plate 1, and a burner head 23 placed on the burner body 22. Has been.

  The mixing tube 21 is placed and fixed on a frame 3 a provided on the bottom of the stove body 3. A gas nozzle (not shown) facing the upstream end of the mixing tube 21 is provided in the stove body 3, and a mixed gas (mixed gas) of fuel gas ejected from the gas nozzle and primary air sucked from the upstream end of the mixing tube 21 is provided. ) Is generated in the mixing tube 21. The downstream end portion of the mixing tube 21 is bent upward, and the cylindrical portion 22a suspended from the burner body 22 is fitted to the downstream end portion of the mixing tube 21 from above through the opening 1a formed in the top plate 1. . In addition, the ring-shaped packing 1b which dams the spilled juice which falls on the top plate 1 and tries to penetrate | invade the opening 1a is attached to the periphery of the opening 1a.

  A large number of tooth forms are erected on the outer peripheral portion of the upper surface of the burner body 22, and a flame hole 24 is formed by a gap between these tooth forms. Then, the air-fuel mixture from the mixing tube 21 is ejected from the flame hole 24 through the space between the burner body 22 and the burner head 23, and the five virtues on the top plate 1 are generated by the flame generated by the combustion of the ejected air-fuel mixture. The cooking container P placed on 4 is heated.

  The five virtues 4 have a central coupling portion 41 located above the burner 2 and a plurality (six in this embodiment) of five virtue claws 42 extending radially outward from the central coupling portion 41. Leg portions 43 extending downward are formed at the radially outer ends of the five virtue claws 42. The virtues 4 are seated on the upper surface of the top board 1 at the leg portions 43 of the virtuosity claws 42.

  By the way, when the flame of the burner 2 touches the five virtue claws 42, a combustion failure occurs. Therefore, a convex portion 23a is formed on the lower surface of the portion of the burner head 23 located in the same orientation as each of the five virtue claws 42, and the tooth profile height of the portion of the burner body 22 located in the same orientation as each of the five virtue claws 42 is projected. It is lowered by the portion 23a. As a result, the flame holes located in the same direction as the five virtue claws 42 become small flame holes 24 ′, and the flames do not touch the respective virtue claws 42. In addition, it is also possible to make the part of the burner body 22 in the same direction as the five virtue claws 42 into a flameless hole part in which no flame hole exists.

  The central coupling portion 41 of the virtues 4 is recessed below the upper edge of the portion of the virtuos claw 42 on which the cooking container P is placed. The pan bottom temperature sensor 5 is attached to the central coupling portion 41. The pan bottom temperature sensor 5 includes a cap 51 that is biased upward by an internal spring, and a thermal element such as a thermistor is attached to the lower surface of the upper plate portion of the cap 51. When the cooking container P is placed on the virtues 4, the cap 51 comes into contact with the bottom surface of the cooking container P and is pushed down. Thereby, the cap 51 is pressed against the bottom surface of the cooking container P by the biasing force of the spring, and the temperature of the cooking container P is detected by the thermal element.

  Here, in order to appropriately detect the temperature of the cooking container P, it is necessary to bring the pan bottom temperature sensor 5 into contact with the center of the bottom surface of the cooking container P. If the pan bottom temperature sensor 5 is attached to the central coupling portion 41 of the virtues 4 as in the present embodiment, the pan bottom temperature sensor 5 inevitably comes into contact with the bottom central portion of the cooking container P. Therefore, it is not necessary to form a burner in an annular shape and install a pot bottom temperature sensor in the inner circumferential space of the burner, and to prevent the simmered juice from falling into the stove body 3 through the inner circumferential space of the burner. it can.

  Further, as described above, the small flame hole 24 ′ is provided in the portion of the burner body 22 that has the same orientation as the five virtue claws 42, or a flameless hole portion, so that no flame touches the respective virtue claws 42. Therefore, it is possible to suppress the pan bottom temperature sensor 5 from being affected by heat from the flame due to heat conduction through the five virtue claws 42. The virtues 5 are preferably made of ceramics so that the heat conduction to the pot bottom temperature sensor 5 through the virtues claw 42 can be more effectively prevented.

  Further, a hollow portion 44 extending from the central coupling portion 41 to the lower end of the leg portion 43 is formed in a predetermined virtuosity claw 42A among the plurality of virtuosity claws 42 of the virtues 4. The signal line 52 from the pan bottom temperature sensor 5 is inserted into the hollow portion 44. According to this, the signal line 52 is not exposed to the outside on the top board 1, and the signal line 52 is protected and the appearance is improved.

  In addition, a signal line 52 inserted into the hollow portion 44 and a signal line 53 provided in the stove main body 3 are separably connected to a portion of the top plate 1 on which a leg portion 43 of a predetermined virtuosity claw 42A is seated. A connecting portion is provided. In the present embodiment, the connection portion is constituted by a plug 6 that protrudes on the top plate 1 through a through hole 1 c formed in the top plate 1. The plug 6 includes a terminal piece 6a having a spring property provided at the bottom of a concave hole opened on the upper end surface, and the signal line 53 on the stove body 3 side is connected to the terminal piece 6a. The hollow portion 44 of the predetermined five virtue claws 42 </ b> A is formed so as to be fitted to the plug 6 at the lower end portion of the leg portion 43. The plug receiver 7 is mounted in the hollow portion 44 at the lower end of the leg portion 43. The plug receiver 7 includes a terminal pin 7a that is inserted into the concave hole of the plug 6 and abuts against the terminal piece 6a, and the signal line 52 on the side of the virtues 4 is connected to the terminal pin 7a.

  Thus, if the virtues 4 are placed on the top plate 1 so that the lower ends of the leg portions 43 of the predetermined virtuosity claw 42A are fitted to the plug 6, the signal lines 52 on the virtues 4 side are connected to the terminal pins 7a and the terminal pieces. The signal from the pan bottom temperature sensor 5 is input to a controller (not shown) in the stove main body 3 via the signal line 53 in the stove main body 3 via 6a. Further, since the signal line 52 on the side of the virtues 4 and the signal line 53 in the stove body 3 can be freely separated, the virtues 4 are not restrained by the signal lines 53 in the stove body 3 when cleaning the top plate 1 or the like. It can be removed and maintainability is improved.

  Further, in the present embodiment, the iron piece 45 is attached to the lower end of the leg portion 43 of the virtuosity claw 42B located on the opposite side in the radial direction across the predetermined virtuosity claw 42A and the central coupling portion 41, and the leg portion 43 is seated. A magnet 8 is attached to the lower surface of the top plate 1 by bonding or the like. According to this, the leg portion 43 of the predetermined virtuosity claw 42A is positioned by fitting to the plug 6, and the leg portion 43 of the virtuosity claw 42B is attracted and held in place by the magnet 8, so that the positioning of the virtues 4 is performed. Be certain.

  By the way, if the signal line 52 on the side of Gotoku 4 and the signal line 53 in the stove main body 3 are not connected due to an erroneous setting of Gotoku 4, control based on the temperature detected by the pan bottom temperature sensor 5 will not be performed. Therefore, the controller determines whether or not the signal line 52 on the Gotoku 4 side and the signal line 53 in the stove body 3 are connected, and only when both the signal lines 52 and 53 are connected, the burner 2 burns. To allow. More specifically, in addition to an ignition switch that is turned on by an ignition operation to an ignition circuit that connects the ignition plug for the burner 2 and an igniter, a switch that is turned on when it is determined that both signal lines 52 and 53 are connected. When the signal lines 52 and 53 are not connected, spark discharge at the spark plug is not performed even if the ignition operation is performed. In addition, an electromagnetic valve that opens when it is determined that both signal lines 52 and 53 are connected to the gas supply path of the burner 2 is provided, and when both signal lines 52 and 53 are not connected, the burner No gas may be supplied to 2.

  In any case, the burner 2 does not burn when the signal lines 52 and 53 are not connected. Therefore, it is possible to prevent the burner 2 from burning without causing control based on the temperature detected by the pan bottom temperature sensor 5 to cause overheating of the cooking container P.

  As mentioned above, although embodiment of this invention was described with reference to drawings, this invention is not limited to this. For example, in the above embodiment, the connecting portion between the signal line 52 on the Gotoku 4 side and the signal line 53 in the stove body 3 is configured by the plug 6, but the top plate 1 on which the leg part 43 of a predetermined Gotoku claw 42A is seated. Part of this part is hollowed out, and conductive glass is fitted therein, and the connecting portion is configured so that the signal line 52 on the Gotoku 4 side and the signal line 53 in the stove body 3 are connected via the conductive glass. It is also possible to do.

The perspective view of the principal part of the gas stove of embodiment of this invention. Sectional drawing cut | disconnected by the II-II line | wire of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Top plate, 2 ... Burner, 3 ... Stove body, 4 ... Gotoku, 41 ... Central joint part, 42 ... Gotoku nail, 42A ... Predetermined 5 virtue nail, 43 ... Leg part, 44 ... Hollow part, 5 ... Pan bottom temperature Sensor: 52 ... Signal line on the virtually side, 53 ... Signal line in the stove body, 6 ... Plug (connection part).

Claims (3)

A burner that protrudes above the top plate that covers the top surface of the stove body, five virtues arranged on the top plate, and a bottom temperature sensor that detects the temperature of the cooking vessel by contacting the bottom surface of the cooking vessel placed on the virtue In a gas stove comprising
The five virtues are configured to include a central coupling portion located above the burner and a plurality of five virtue claws extending radially outward from the central coupling portion,
A gas stove characterized in that a central joint portion of Gotoku is recessed below the upper edge of the part of the Gotoku nail where the cooking container is placed, and a pan bottom temperature sensor is attached to the central joint portion.   A portion of the top plate in which a hollow portion through which the signal line from the pan bottom temperature sensor is inserted is formed in a predetermined virtuosity claw among the plurality of virtuosity claws, and a leg portion at a radially outer end of the predetermined virtuosity claw is seated The gas stove according to claim 1, further comprising a connecting portion that detachably connects a signal line inserted through the hollow portion and a signal line provided in the stove body.   The combustion in the burner is permitted only when the signal line inserted through the hollow portion and the signal line provided in the stove body are connected. Gas stove.

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