JP2019219157A - Gas cooking stove - Google Patents

Abstract

To provide a gas cooking stove which can inhibit temperature rise of a top plate and a cooking stove burner during heating cooking.SOLUTION: A gas cooking stove includes: a cooking stove burner 100; a top plate 4 in which a burner opening 40 facing an upper end part of the cooking stove burner 100 is opened; and a heat sink 42 attached to a lower surface of a peripheral edge part of the burner opening 40 of at least the top plate 4. A burner body of the cooking stove burner 100 is placed in contact with the heat sink 42.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a gas stove in which a stove burner is exposed from a burner opening provided in a top plate.

  In general, a gas stove includes a case body that is a rectangular box body that is open upward, and a top plate that covers an upper open part of the case body, and one or a plurality of stove burners is housed in the case body. In this type of gas stove, a large number of flame holes are formed by exposing the upper end of the burner main body constituting the stove burner from the burner opening opened in the top plate and mounting the burner head on the upper end. I have. Further, on the upper surface of the peripheral portion of the burner opening, a goto for supporting a cooking vessel such as a pot or a frying pan is installed in a positioned state.

  Conventionally, in order to prevent the top plate from being overheated during cooking by a stove burner, a radiator plate is additionally provided on the lower surface of the top plate. For example, the burner ring is disposed on the upper surface of the peripheral portion of the burner opening of the top plate, and the mounting plate is disposed on the lower surface of the heat sink, and the burner ring and the mounting plate sandwich the peripheral portion of the burner opening from above and below. A gas stove has been proposed in which a radiator plate is additionally provided on the lower surface of a top plate by screwing them in a burner opening in a state (Patent Document 1). According to this gas stove, even if heat is applied to the top plate, the heat of the top plate is radiated through the radiator plate which is fixed in close contact with the lower surface of the peripheral portion of the burner opening of the top plate, Deformation of the top plate due to overheating and burning of spills are suppressed.

JP 2010-48505 A

  However, in the gas stove disclosed in Patent Literature 1, although the top plate can be prevented from being overheated by the radiator plate, the radiator plate is not in contact with the burner main body, so that the temperature rise of the burner main body, which becomes high in temperature, does not increase. Cannot be suppressed by the heat sink. Therefore, boiled-spills that have penetrated into the burner main body are easily burnt in the burner main body. If such burning occurs in the burner main body, the gas passage leading to the flame hole formed at the upper end of the burner main body may be narrowed or blocked.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a gas stove that can suppress a rise in the temperature of a top plate during heating and cooking and can also suppress a rise in the temperature of a stove burner.

The present invention
With a stove burner,
A top plate with a burner opening facing the upper end of the stove burner,
At least a radiator plate attached to the lower surface of the peripheral portion of the burner opening of the top plate,
The stove burner is a gas stove having a burner body that comes into contact with a heat sink.

  According to the gas stove, at least the radiator plate attached to the lower surface of the peripheral portion of the burner opening of the top plate comes into contact with the burner body constituting the stove burner. Burner temperature rise can also be suppressed.

Preferably, in the gas stove,
The stove burner is disposed below the upper burner main body having an upper outer peripheral portion mounted on the upper surface of the peripheral portion of the burner opening of the top plate, and the burner opening of the top plate, and the mixing pipe is extended. A burner main body having a lower burner main body, and a burner head mounted on the upper end of the upper burner main body and forming a large number of flame holes,
The upper burner main body and the lower burner main body are integrally connected in a state where the lower burner main body is in contact with the heat sink.

  According to the gas stove, the burner main body of the stove burner has the divided upper burner main body and lower burner main body, and a flame hole is formed between the upper end portion of the upper burner main body and the burner head. In addition, the lower burner main body disposed below the burner opening of the top plate is integrally connected to the upper burner main body while being in contact with a heat sink attached to the lower surface of the top plate. Therefore, the heat applied to the top plate during cooking can be released from the heat sink attached to the lower surface. Further, since the heat applied to the upper burner main body is thermally conducted to the lower burner main body integrally connected to the upper burner main body, the heat applied to the lower burner main body can be released from the heat sink.

Preferably, in the gas stove,
The lower burner main body has an annular flange portion projecting outward,
The upper surface of the flange portion of the lower burner body makes surface contact with the lower surface of the heat sink.

  According to the gas stove, since the contact area between the lower burner main body and the heat sink can be increased by bringing the flange portion of the lower burner main body into surface contact with the heat sink, the heat applied to the lower burner main body can be radiated. Heat can be smoothly conducted to the plate.

Preferably, in the gas stove,
The upper burner main body has an annular cylindrical portion having an upper end portion on which the burner head is mounted, and a burner ring portion integrally extending outward from the outer peripheral surface of the annular cylindrical portion,
The burner ring portion is placed on the upper surface of the peripheral portion of the burner opening of the top plate,
The upper burner main body and the lower burner main body are integrally connected by a burner ring portion and a flange portion while sandwiching the top plate and the heat sink from above and below.

  According to the above gas stove, the upper burner main body and the lower burner main body are integrally connected with the top plate and the radiator plate sandwiched from above and below by the burner ring portion of the upper burner main body and the flange portion of the lower burner main body. . Accordingly, the stove burner is operated in a state where the lower surface of the burner ring portion of the upper burner body contacts the upper surface of the peripheral portion of the burner opening of the top plate, and the upper surface of the flange portion of the lower burner body makes surface contact with the lower surface of the heat sink. It is fixed to the top plate. Thereby, heat from the upper burner main body is thermally conducted to the top plate and the lower burner main body. Then, the heat applied to the top plate is thermally conducted to the upper surface of the radiator plate through the top plate, and the heat applied to the lower burner body is thermally conducted to the lower surface of the radiator plate through the flange portion. Therefore, even when a thick radiating plate is used, heat conduction to the radiating plate can be separated, so that concentration of heat conduction to a specific portion of the radiating plate can be avoided and the radiating plate can be more smoothly. Heat can be dissipated.

  As described above, according to the gas stove according to the present invention, the heat applied to the top plate during the heating and cooking is radiated through the radiator plate attached to the lower surface. Further, the heat applied to the stove burner is radiated from the burner main body via a radiator plate. Thereby, not only the temperature of the top plate but also the temperature of the stove burner can be lowered, so that deformation of the top plate and scorching of boiling over can be prevented. In addition, even when the spill has penetrated into the stove burner, the occurrence of scorching inside the stove burner can be reduced. Therefore, it is possible to prevent the gas passage leading to the flame hole from being narrowed or blocked by scorching. Therefore, a gas stove having not only stable heating efficiency and combustion performance but also excellent cleaning properties can be provided.

It is an important section expanded sectional view of a gas stove concerning an embodiment of the invention. It is an exploded perspective view of the stove burner of the gas stove according to the embodiment of the present invention. It is explanatory drawing which shows the upper burner main body and the lower burner main body in the state fixed to the top plate of the gas stove concerning embodiment of this invention, and a virtue. It is a principal part expanded sectional view which shows the upper burner main body and the lower burner main body in a state fixed to the top plate of the gas stove according to the embodiment of the present invention, and the virtue.

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

  The gas stove, together with the ignition plug (31) and the flame detector (32), includes a case body (not shown), which is a rectangular box body that houses the stove burner (100), and an upper open part of the case body. And a top plate (4) for coating. The top plate (4) has a burner opening (40) for exposing the upper end of the stove burner (100), and an exhaust port (not shown) at the rear.

  As shown in FIGS. 1 and 2, the stove burner (100) includes a burner head (3), an upper burner main body (1) on which a burner head (3) is mounted at an upper end, fuel gas and primary air. And a lower burner main body (2) extending substantially horizontally, and a burner main body (A) is formed by the upper burner main body (1) and the lower burner main body (2). ) Is formed. A large number of flame holes (33) are provided between the numerous toothed portions (33) provided at the lower end of the outer peripheral wall of the burner head (3) and the upper end of the annular tubular portion (11) of the upper burner body (1). 30) is formed in the circumferential direction so as to face diagonally upward and outward.

  An annular burner cap (44) is placed on the upper surface of the burner head (3). A pan bottom temperature sensor (41) projects upward from a central hole (44a) of the burner cap (44). The upper burner main body (1), the lower burner main body (2), the burner head (3), and the burner cap (44) are made of, for example, an aluminum die-cast member having high thermal conductivity.

  A fixed base (not shown) is installed at a predetermined position in the case body, and the fixed base has a burner support plate (29) connected to the bottom of the lower burner body (2) by screws or the like. Has been erected. Thereby, the stove burner (100) is housed in a state where it is positioned at a predetermined position in the case body.

  The lower burner body (2) includes an outer cylinder (22) in which a flange portion (21) disposed below a peripheral portion of the burner opening (40) of the top plate (4) projects outward. An inner cylinder (23) following the central hole (3a) of the burner head (3). The spark plug (31) and the flame detector (32) penetrate the flange (21) from below and are arranged side by side in the circumferential direction (see FIG. 3). For this reason, the width of the flange (21) from the outer cylinder (22) to the periphery of the burner opening (40) is wider on the side where the spark plug (31) and the flame detector (32) are installed. , On the side where the spark plug (31) and the flame detector (32) are not installed. Accordingly, the outer cylinder (22) is eccentrically positioned with respect to the burner opening (40) and the inner cylinder (23) located substantially concentric with the opening.

  On the inner peripheral surface of the outer cylinder (22), which is located at substantially the same height as the flange (21), three downwardly projecting pieces (20a), (20b), (20c) are provided at equal intervals in the circumferential direction. It protrudes substantially horizontally toward. Regardless of the distance from the inner peripheral surface of the outer cylinder (22) to the outer peripheral surface of the inner cylinder (23), the protruding end of each lower projecting piece portion (20a) (20b) (20c) is attached to the inner cylinder (23). It has a protruding length to reach. A screw hole (28) is formed near the protruding end of each of the lower protruding pieces (20a) (20b) (20c).

  The upper burner main body (1) is integrally formed with an annular cylindrical portion (11) having an upper end on which the tooth profile (33) of the burner head (3) is mounted, and outwardly from the outer peripheral surface of the annular cylindrical portion (11). And an annular burner ring portion (12) that is extended. The upper burner body (1) is placed on the top plate (4) such that the lower surface of the burner ring (12) abuts on the upper surface of the periphery of the burner opening (40) of the top plate (4). You.

  On the lower surface on the inner peripheral side of the burner opening (40) of the burner ring (12), the burner ring (12) is placed on the upper surface of the peripheral portion of the burner opening (40) of the top plate (4). A lower open annular groove (12a) into which the upper open end of the outer cylinder (22) of the lower burner body (2) can be fitted when formed. In addition, through holes (13a) and (13b) are provided at respective positions of the burner ring portion (12) corresponding to the ignition plug (31) and the flame detector (32). Further, a pair of cutouts (14a) (14b) are formed at positions facing the outer peripheral edge of the burner ring portion (12).

  At the lower end portion of the inner peripheral surface of the annular cylindrical portion (11), three upwardly projecting pieces (10a) (10b) (10c) are provided at substantially equal intervals in the circumferential direction and project substantially inward toward the inside. I have. Each of the upper protruding pieces (10a) (10b) (10c) has a through hole (13a) (13b) through which a spark plug (31) and a flame detector (32) are inserted, respectively, and is provided outside the lower burner body (2). When the burner ring (12) of the upper burner body (1) is placed on the upper surface of the top plate (4) with the upper open end of the cylinder (22) fitted in the annular groove (12a). Are provided at positions corresponding to the downward projecting pieces (20a) (20b) (20c). A substantially U-shaped notch (18) that opens toward the tip is formed at the tip of each of the upper protruding pieces (10a) (10b) (10c).

  The top plate (4) is made of, for example, glass. Almost all of the lower surface of the top plate (4) except for the area corresponding to the area where the burner opening (42) and the rear exhaust port are formed, heat radiation made of aluminum heat-off material having high thermal conductivity A plate (42) is attached. An opening (43) having substantially the same diameter as the burner opening (42) is formed in the heat sink (42) at a position corresponding to the burner opening (40).

Next, assembling of the stove burner (100) to the top plate (4) in the present embodiment will be described.
First, the burner support plate (29) to which the lower burner main body (2) is connected is mounted on a fixing base fixed in the case body and is screwed. As a result, the lower burner main body (2) integrally provided with the ignition plug (31) and the flame detector (32) is fixedly positioned at a predetermined position in the case body.

  Next, the upper open portion of the case body is covered with a top plate (4) with a heat sink (42) attached to the lower surface. When the upper open portion of the case body is covered with the top plate (4), a flange portion (21) of the lower burner main body (2) is disposed below a peripheral portion of the burner opening (40), and In the burner opening (40), the inner cylinder (23) of the lower burner main body (2) is located substantially concentric with the burner opening (40), and the flange portion (21) has a heat sink ( The mounting position of the lower burner body (2) in the case body, the size of the flange (21), and the burner on the top plate (4) so that the lower surface of the periphery of the opening (43) of the opening (43) is in surface contact. The opening position of the opening (40) is set.

  Next, the upper burner main body (1) and the lower burner main body (2) are connected in a state where the inner cylinder (23) is exposed substantially concentrically with the burner opening (40) in the burner opening (40). Let it. In the burner opening (40), the spark plug (31) and the flame detector (32) project upward from the case body together with the inner cylinder (23), so that the ignition plug (31) and the flame detector ( The upper burner main body (1) is arranged on the lower burner main body (2) such that the through holes (13a) (13b) provided in the upper burner main body (1) correspond to (32). At this time, the burner ring (12) of the upper burner body (1) abuts on the upper surface of the peripheral portion of the burner opening (40) of the top plate (4), and the outer cylinder (22) of the lower burner body (2). When the upper open end of the lower burner fits into the annular groove (12a) that is open to the lower surface of the upper burner body (1), the lower projecting pieces (20a) (20b) (20c) of the lower burner body (2) The notch (18) of the upper projecting pieces (10a) (10b) (10c) of the upper burner main body (1) is located on the screw hole (28).

  When the upper burner main body (1) is installed as described above, the fixing screw (15) is inserted from above into the notches (18) of the upper projecting pieces (10a) (10b) (10c), Further, the fixing screw (15) is screwed into the screw hole (28) of the downwardly projecting pieces (20a) (20b) (20c) thereunder. Then, as the fixing screw (15) is screwed into the screw hole (28), the burner support plate (29) erected on the fixing base is bent upward, and the lower burner main body (2) is raised accordingly. Therefore, the lower burner main body (2) approaches the upper burner main body (1). When the fixing screw (15) is finally tightened, the burner ring (12) of the upper burner main body (1) and the flange (21) of the lower burner main body (2) cause the burner of the top plate (4). The periphery of the opening (40) is sandwiched from above and below together with the heat sink (42). Further, the upper burner main body (1) and the lower burner main body (2) are integrally connected in a close contact state. As a result, the stove burner (100) is fixed to the periphery of the burner opening (40) of the top plate (4) in a detented state.

  Therefore, in the present embodiment, the outer peripheral portion of the burner ring portion (12) in the upper burner body (1) disposed on the upper surface of the peripheral portion of the burner opening (40) of the top plate (4) corresponds to the upper outer peripheral portion. The outer peripheral portion of the flange portion (21) of the lower burner main body (2) formed and disposed below the peripheral portion of the burner opening (40) of the top plate (4) via the heat sink (42) Form a part.

  When the stove burner (100) is fixed to the top plate (4) as described above, the tooth profile (33) of the burner head (3) is attached to the upper end of the annular tubular portion (11) of the upper burner body (1). ), And set the burner cap (44) on the upper end of the burner head (3).

  In addition, the gotoku (5) is placed so as to surround the burner ring (12) of the upper burner body (1) installed on the top plate (4). As shown in FIG. 3, the virtues (5) are composed of a circular virtues frame (51) placed around the burner ring (12) of the upper burner body (1), and a plurality of Gotoku claws (50). Of the five virtue nails (50), a protruding part (52a) (52a) protruding more inward than the virtue frame (51) is located inside the lower ends of the pair of virtue claws (50a) (50b) located at positions facing each other. 52b) is provided. Therefore, by locking the protruding portions (52a) (52b) into a pair of notches (14a) (14b) provided on the outer peripheral edge of the burner ring portion (12), the ) Is installed on the top plate (4) in a detented state.

  According to the gas stove according to the embodiment of the present invention, the burner body (A) of the stove burner (100) is composed of two parts, an upper burner body (1) and a lower burner body (2). In addition, a fixing screw (15) inserted through a notch (18) of an upper protruding piece (10a) (10b) (10c) protruding inward from an annular cylindrical portion (11) of the upper burner body (1). Into the screw holes (28) of the lower projecting pieces (20a) (20b) (20c) projecting inward from the outer cylinder (22) of the lower burner body (2), The periphery of the burner opening (40) of (4) and the periphery of the opening (43) of the heat sink (42) are the flanges of the burner ring (12) of the upper burner body (1) and the lower burner body (2). The upper burner main body (1) and the lower burner main body (2) are integrally screwed together while being sandwiched from above and below by the part (21). Therefore, in the gas stove according to the present embodiment, when the upper burner main body (1) and the lower burner main body (2) are integrally connected in close contact with each other, the burner ring (12) of the upper burner main body (1) is The upper surface of the top plate (4) is in contact with the upper surface of the top plate (4), the lower surface of the top plate (4) is in surface contact with the upper surface of the heat sink (42), and the upper surface of the flange portion (21) of the lower burner body (2) is in contact with the heat sink (42). ), An assembling mode in which the lower surface is in surface contact is formed.

  On the other hand, as shown in FIG. 4, when the cooking container (45) such as a pot is placed on the gotoku (50) of the gotoku (5) and the stove burner (100) is ignited, the gas blows out from the flame hole (30). The flame heats the bottom (45a) of the cooking vessel (45), and also heats the upper burner body (1), the gotoku (5), and the top plate (4).

  The burner ring section (12) and the gotoku (5) of the upper burner body (1) are placed directly on the upper surface of the top plate (4), but the heat sink (42) is placed on the lower surface of the top plate (4). Is attached, the heat from the burner ring (12) and the goto (5) is conducted to the top plate (4), and the heat applied to the top plate (4) is The heat is conducted from the heat radiating plate (42) to the upper surface of the heat radiating plate (42) through the heat sink and is released into the case body.

  Further, the heat applied to the upper burner body (1) is conducted to the lower burner body (2) integrally connected to the upper burner body (1), and the heat applied to the lower burner body (2). Is thermally conducted to the lower surface of the heat radiating plate (42) through the flange portion (21) and is released into the case body.

  Therefore, according to the gas stove of the present embodiment, a heat sink (42) is additionally provided on the lower surface of the top plate (4), and the lower burner main body (A) constituting the burner main body (A) is provided on the heat sink (42). Since the flange portion (21) of (2) is in direct surface contact, not only the heat of the top plate (4) but also the heat of the stove burner (100) is smoothly conducted to the radiator plate (42). It can be released via the plate (42). Therefore, not only the temperature rise of the top plate (4) but also the temperature rise of the stove burner (100) can be suppressed. Thereby, it is possible to prevent the top plate (4) from being deformed or scorched. Further, even when the spill has penetrated into the stove burner (100), it is possible to suppress the occurrence of burning in the stove burner (100). Thereby, not only the inconvenience of the gas passage leading to the flame hole (30) being narrowed or blocked due to the sticking adherence can be prevented, but also the cleaning property is improved.

  In particular, according to the gas stove of the present embodiment, since the upper surface of the flange portion (21) of the lower burner main body (2) and the lower surface of the heat sink (42) are in surface contact, the lower burner main body (2) Heat can be more smoothly conducted to the heat radiating plate (42).

  The heat applied to the top plate (4) is conducted through the top plate (4) to the upper surface of the radiator plate (42), and the heat applied to the lower burner body (2) is transferred to the flange portion (21). Therefore, even when a thick heat radiating plate (42) is used, heat conduction to the heat radiating plate (42) can be separated. Therefore, it is possible to avoid concentration of heat conduction on a specific portion of the heat radiating plate (42), and it is possible to radiate heat more smoothly from the heat radiating plate (42).

(100) ・ ・ ・ ・ ・ ・ ・ ・ Stove burner
(A) ・ ・ ・ ・ ・ ・ ・ ・ ・ Burner body
(1) ・ ・ ・ ・ ・ ・ ・ ・ ・ Top burner body
(2) ・ ・ ・ ・ ・ ・ ・ ・ ・ Lower burner body
(24) ・ ・ ・ ・ ・ ・ ・ ・ ・ Mixing tube
(3) ・ ・ ・ ・ ・ ・ ・ ・ ・ Burner head
(30) ・ ・ ・ ・ ・ ・ ・ ・ ・ Fire hole
(4) ・ ・ ・ ・ ・ ・ ・ ・ ・ Top plate
(40) ・ ・ ・ ・ ・ ・ ・ ・ ・ Burner opening
(42) ・ ・ ・ ・ ・ ・ ・ ・ ・ Heat sink

Claims (4)

With a stove burner,
A top plate with a burner opening facing the upper end of the stove burner,
At least a radiator plate attached to the lower surface of the peripheral portion of the burner opening of the top plate,
The stove burner is a gas stove having a burner body that comes into contact with a heat sink. The gas stove according to claim 1,
The stove burner is disposed below the upper burner main body having an upper outer peripheral portion mounted on the upper surface of the peripheral portion of the burner opening of the top plate, and the burner opening of the top plate, and the mixing pipe is extended. A burner main body having a lower burner main body, and a burner head mounted on the upper end of the upper burner main body and forming a large number of flame holes,
A gas stove in which the upper burner main body and the lower burner main body are integrally connected while the lower burner main body is in contact with the heat sink. The gas stove according to claim 2,
The lower burner main body has an annular flange portion projecting outward,
A gas stove in which the upper surface of the flange of the lower burner body makes surface contact with the lower surface of the heat sink. The gas stove according to claim 3,
The upper burner main body has an annular cylindrical portion having an upper end portion on which the burner head is mounted, and a burner ring portion integrally extending outward from the outer peripheral surface of the annular cylindrical portion,
The burner ring portion is placed on the upper surface of the peripheral portion of the burner opening of the top plate,
A gas stove in which an upper burner main body and a lower burner main body are integrally connected by a burner ring portion and a flange portion while sandwiching a top plate and a heat sink from above and below.

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