TWI451051B - A gas furnace with a pot bottom temperature sensor - Google Patents

Description

Gas stove with pot bottom temperature sensor Technical field

The invention relates to a gas furnace with a bottom temperature sensor, and the bottom temperature sensor can detect the temperature of the conditioning container.

Background technique

The gas furnace system known in the prior art comprises: a burner of a stove, which is exposed from a top plate covering the upper surface of the main body of the stove, and is provided with a plurality of flame holes on the outer circumference; the fire frame has a plurality of sides from the burner side of the stove a fire holder claw extending from a center of the burner; and a bottom temperature sensor protruding from a central portion of the burner of the stove and detecting a conditioning container placed on the fire frame The temperature is (for example, refer to Patent Document 1).

The bottom temperature sensor disposed in the gas furnace has a pillar that is erected in a space inside the burner surrounded by a ring-shaped burner, and a thermal head that is supported at the front end of the pillar. In order to freely move up and down the author. The thermal head is provided with a potential energy upward with respect to the support by a coil spring or the like, and is provided with a heat sensitive element inside.

Further, when conditioning by such a gas furnace, as shown in Fig. 5(a), the pot Q belonging to the conditioning container is placed on the holder claw 7 of the flame holder 6. At this time, the thermal head 11 of the pan bottom temperature sensor 8 resists the biasing by the coil spring or the like, and is pressed down by the weight of the pan Q. Accordingly, the thermal head 11 is elastically abutted against the bottom surface of the pan Q placed on the flame frame 6, and constitutes a state in which the temperature of the pan Q heated by the oven burner 4 can be detected.

Advanced technical literature Patent literature

[Patent Document 1] Japanese Laid-Open Patent Publication No. Hei 11-83020 (Fig. 1)

Summary of invention

However, as shown in Fig. 5(b), when a small amount of hot water is boiled or the like using a small-capacity and lightweight single-handle pan P, if the single-handle pan P is placed on the fire frame 6, The thermal head 11 cannot be sufficiently underground, and there is a case where the single-handle pan P is inclined.

In general, a coil spring or the like that imparts potential energy to the thermal head 11 is set to a minimum necessary elastic force. However, when the pan body P1 is formed into a very lightweight single-handle P, the handle P2 extending toward one side is biased. The load is likely to be inclined in the direction of the handle P2. When the thermal head 11 is pushed up to the state of the pan body P1 of the single-handle pan P, the single-handle pan P is inclined and the stability cannot be obtained.

In view of the above, an object of the present invention is to provide a gas furnace with a pan bottom temperature sensor, and a gas furnace with a pan bottom temperature sensor, even if a small-capacity and lightweight single-handle pan or the like is used. It can also prevent the conditioning container from being tilted for conditioning.

In order to achieve the above object, the gas furnace of the present invention comprises: a burner of a furnace, which is exposed from a top plate covering the upper surface of the main body of the furnace, and is provided with a plurality of flame holes on the outer circumference; the fire frame has a plurality of combustion from the furnace The flame frame claw protruding from the outer side of the burner toward the center of the burner; and the bottom temperature of the pan The sensor has a thermal head protruding from a central portion of the burner of the stove and freely movable up and down, and detecting the thermal head by elastically abutting against a bottom surface of the conditioning container placed on the fire frame And adjusting the temperature of the container; further comprising: an abutting member, wherein the abutting member is disposed between the bottom temperature sensor and the fire frame, and moves up and down in synchronization with the thermal head of the bottom temperature sensor; And along the outer circumference of the bottom temperature sensor, the bottom surface of the conditioning container is abutted at a predetermined interval and at least three places.

By providing the abutting member, when the conditioning container is placed on the fire frame, the thermal head abuts against the bottom surface of the conditioning container, and the abutting member abuts against the periphery thereof. Thereby, the load of the conditioning container is transmitted through the abutting member, and the heat sensitive head load is surely imparted, and even if it is a conditioning container such as a lightweight single-handle pan, the thermal head can be reliably pressed down. Therefore, the conditioning container can be prevented from being tilted for conditioning.

Moreover, when the conditioning container is extremely lightweight, it is generally considered that the pressure under the thermal head is also insufficient. However, at this time, the conditioning container can be prevented from tilting by stably supporting the conditioning container on the abutting member.

Furthermore, the abutting member of the present invention preferably includes a plurality of arm portions that are formed to extend in a plan view in an extended direction along a direction in which the fire frame claws extend, and radially extend from the pan bottom temperature sensor; And the abutting portion is formed on the upper surface of the arm portion and abuts against the bottom surface of the conditioning container.

Thereby, each arm portion is aligned with the fire frame claw on the same straight line, and the appearance of the arm frame can be obtained, so that the appearance of the abutment member can be prevented from being lowered.

However, in the stove burner, sometimes it corresponds to the position of the firearm claw It is set to set the discharge amount of the mixed gas to be smaller than the small flame holes of the other flame holes. With the small flame hole, the flame corresponding to the position of the flame holder claw is small, and the firing of the flame holder claw can be alleviated.

Further, when the abutting member including the arm portion is provided in a burner having a small flame hole, since the position of each arm portion corresponds to the frame claw, the firing of each arm portion can be reduced, and It suppresses the deterioration of the combustion performance of the burner of the stove caused by the generation of red fire or CO.

Moreover, it is preferable that the abutting member is provided in the heat sensitive head of the pan bottom temperature sensor so as to be detachable. Thereby, the contact member can be detached from the thermal head to easily perform maintenance such as cleaning, or the contact member can be removed from the thermal head when the member is not required to be used without using a lightweight cookware or the like. Conditioning.

Simple illustration

Figs. 1(a) and 1(b) are explanatory views showing a state in which a conditioning container in a gas furnace with a pan bottom temperature sensor according to an embodiment of the present invention is placed.

2(a) and 2(b) are cross-sectional views showing the state in which the abutting member is mounted on the thermal head.

3(a) and 3(b) are explanatory views showing the planar shape of the abutting member.

4(a) to 4(c) are explanatory views showing a modification of the abutting member.

Figs. 5(a) and 5(b) are explanatory views showing the state in which the conditioning container is placed in a gas oven having a pot bottom temperature sensor.

Form for implementing the invention

Embodiments of the present invention will be described based on the drawings. As shown in parts 1(a) and 1(b), the gas furnace 1 of the present embodiment includes a stove body 2; The top plate 3 covers the upper surface of the stove body 2; and the stove burner 4 is exposed from the top plate 3. On the outer circumference of the burner 4, a plurality of flame holes 5 through which a mixed gas can be discharged are formed, and the mixed gas system is composed of a fuel gas and primary air. A fire frame 6 is placed on the top plate 3, and the plurality of fire frame claws 7 of the fire frame 6 extend toward the center of the stove burner 4. The fire holder claw 7 supports the conditioning container P by being supported thereon.

The stove burner 4 is formed in a ring shape, and a pan bottom temperature sensor 8 is provided at a central portion of the inner space. The bottom temperature sensor 8 is attached with an abutting member 9 which is abutted against the bottom surface of the conditioning container P, which will be described later.

The bottom temperature sensor 8 includes a support 10 that is a cylindrical space that is erected in a central portion of the burner 4, and a thermal head 11 that is provided to the support 10 as shown in FIG. 2(a). Above the end, and free to move the author up and down. Although not shown, the thermal head 11 is internally provided with a temperature detecting element such as a thermal resistor that detects the temperature of the bottom surface of the conditioning container P. Further, although not shown, the thermal head 11 has a spring in which a potential energy is applied upward with respect to the support 10 .

The abutting member 9 is configured such that the tubular portion 12 is detachably attached to the thermal head 11 as shown in Fig. 2(a); and the three arm portions 13 are As shown in Fig. 3(a), the tubular portion 12 is radially extended.

As shown in Fig. 3(a), the arm portion 13 is disposed to coincide with an extension line along the extending direction of the frame claw 7 in plan view. As shown in Fig. 2(a), the tubular portion 12 forms the locking groove 14 on the inner surface, and the locking groove 14 is locked with the projection 15 projecting from the outer periphery of the thermal head 11, and is stopped. Thereby, the displacement of the arm portion 13 with respect to the frame claw 7 is prevented.

Further, as shown in Fig. 2(a), the tubular portion 12 covers the thermal head 11, whereby The thermal head 11 is in contact with the bottom surface of the conditioning container P through the tubular portion 12. However, as shown in FIG. 2(b), the opening portion 16 may be formed at the upper end, and the thermal head may be formed. The upper end surface of the 11 is exposed from the opening portion 16 so that the thermal head 11 is in direct contact with the bottom surface of the conditioning container P. Thereby, since the tubular portion 12 is not interposed between the thermal head 11 and the bottom surface of the conditioning container P, the heat from the bottom surface of the conditioning container P can be efficiently conducted to the thermal head 11.

Further, although not shown in detail, in the flame hole 5 of the burner 4, the flame hole 5 located at a position facing the firearm claw 7 is formed such that the discharge amount of the mixed gas is smaller than that of the other flame holes 5. Flame hole. By forming the flame hole 5 located at the position facing the fire frame claw 7 as a small flame hole, the flame which is formed to face the position of the fire frame claw 7 can be formed small, and the firing of the fire frame claw 7 can be alleviated, and the combustion performance can be suppressed. Deterioration.

As shown in Fig. 3(a), the arm portions 13 of the abutting member 9 are disposed so as to be aligned with the extension line along the extending direction of the frame claws 7 in plan view, and thus can be formed to face each other. The flame at the position of the arm portion 13 is small and is made the same as the flame holder claw, and the firing of the arm portion 13 can be alleviated. Further, by aligning the arm portions 13 with the frame claws 7 on the same straight line, it is possible to obtain a sense of appearance with the flame frame 6 and prevent the appearance of the abutment member 9 from being lowered. Further, three or more arm portions 13 may be provided, and as shown in FIG. 3(b), the same number as the fire frame claws 7 may be provided.

Further, as shown in FIGS. 1(a) and 1(b), the arm portions 13 are provided with abutting portions 17 projecting from the upper surface thereof to abut against the bottom surface of the conditioning container P. The abutting portion 17 is located between the bottom temperature sensor 8 and the fire frame, and is preferably provided at the front end of each arm portion 13. By providing the abutting portion 17 protruding on the arm portion 13, the heat conduction from the conditioning container P toward the arm portion 13 can be made smaller, and the pair can be reduced. The influence of the detected temperature on the bottom surface of the conditioning container P according to the thermal head 11.

Next, the action of the abutting member 9 will be described. As shown in Fig. 1(a), when the conditioning container P is placed on the fire holder 6, the bottom surface of the conditioning container P abuts against the cylindrical portion 12 (the thermal head 11) of the abutting member 9 and the thermal head. The outer side of the 11 abuts against the abutment portion 17 of the arm portion 13. Thereby, even if the conditioning container P is a small-capacity and lightweight single-handle pan as illustrated, each arm portion 13 supports the bottom surface of the conditioning container P, and the conditioning container P maintains a horizontal posture. At this time, the load of the conditioning container P is surely supplied to the thermal head 11 of the tubular portion 12 through the respective arm portions 13.

Further, as shown in Fig. 1(b), the thermal head 11 is surely pressed underground, and the conditioning container P is placed in a state of being placed on the fire frame 6 in a stable manner. According to this configuration, by providing the abutting member 9, even if the conditioning container P such as a small-capacity and lightweight single-handle pan is used, the inclination of the conditioning container P as shown in Fig. 5(b) can be prevented, and Conditioning is carried out in a state where the conditioning container P is placed stably on the fire frame 6.

Further, the arm portion 13 of the abutting member 9 is not limited to the shape shown in Figs. 1(a) and 1(b). That is, as shown in FIG. 4(a), a plurality of (two in the drawing) contact portions 18 may be provided in each of the arm portions 13 of the abutting member 9. By doing so, since the abutment with the conditioning container P is increased, the stability of the conditioning container P can be improved.

Further, as shown in Fig. 4(b), an arm portion 19 extending obliquely upward from the lower end side of the tubular portion 12 of the abutting member 9 may be provided. Thereby, since the arm portion 19 is separated from the upper end of the thermal head 11, the heat conduction from the conditioning container P to the arm portion 19 can be suppressed, and the influence on the detection temperature according to the thermal head 11 can be made extremely small.

Further, as shown in FIG. 4(c), the arm portion of the abutting member 9 may be formed. The abutting portion 21 is formed on the upper surface of the entire length of 20 times and abuts against the bottom surface of the conditioning container P. At this time, the heat from the bottom surface of the conditioning container P is transmitted to the entire length of the arm portion 20, and slightly causes an influence on the detection temperature according to the thermal head 11, however, the stability of the conditioning container P can be improved while even The displacement of the conditioning container P relative to the fire frame 6 is produced, and the horizontal posture of the conditioning container P can be surely maintained.

Further, in the above-described embodiment, the abutment member 9 is detachably provided in the pan bottom temperature sensor 8, and the abutment member 9 can be detached from the thermal head 11 to be conditioned when not in use. On the other hand, in addition to this, each of the arm portions 13 may be integrally provided to the thermal head 11 to constitute an abutting member. Thereby, the number of parts can be reduced.

1‧‧‧ gas stove

2‧‧‧ stove body

3‧‧‧ top board

4‧‧‧burner burner

5‧‧‧flame hole

6‧‧‧Fire rack

7‧‧‧ Firearm Claw

8‧‧‧Bottom temperature sensor

9‧‧‧Abutment components

10‧‧‧ pillar

11‧‧‧ Thermal head

12‧‧‧Cylinder

13,19,20‧‧‧arms

14‧‧‧ card ditch

15‧‧‧ protrusion

16‧‧‧ openings

17,18,21‧‧‧Apartment

P‧‧‧Single handle pot (conditioning container)

P1‧‧‧ pot body

P2‧‧‧handle

Q‧‧‧ pots

Figs. 1(a) and 1(b) are explanatory views showing a state in which a conditioning container in a gas furnace with a pan bottom temperature sensor according to an embodiment of the present invention is placed.

2(a) and 2(b) are cross-sectional views showing the state in which the abutting member is mounted on the thermal head.

3(a) and 3(b) are explanatory views showing the planar shape of the abutting member.

4(a) to 4(c) are explanatory views showing a modification of the abutting member.

Figs. 5(a) and 5(b) are explanatory views showing the state in which the conditioning container is placed in a gas oven having a pot bottom temperature sensor.

1‧‧‧ gas stove

2‧‧‧ stove body

3‧‧‧ top board

4‧‧‧burner burner

5‧‧‧flame hole

6‧‧‧Fire rack

7‧‧‧ Firearm Claw

8‧‧‧Bottom temperature sensor

9‧‧‧Abutment components

10‧‧‧ pillar

11‧‧‧ Thermal head

12‧‧‧Cylinder

13‧‧‧ Arms

17‧‧‧Apartment

P‧‧‧Single handle pot (conditioning container)

Claims (3)

A gas stove with a bottom temperature sensor is provided with: a burner of a stove, which is exposed from a top plate covering the upper surface of the stove body, and a plurality of flame holes are arranged on the outer circumference; the fire frame has a plurality of fire frame claws protruding from the outer side of the burner of the stove toward the center of the burner of the stove; and the bottom temperature sensor is provided from the furnace Central part of the burner a thermal head that is freely movable up and down, and detects the temperature of the conditioning container by elastically abutting the thermal head against a bottom surface of the conditioning container placed on the fire frame; Gas stove is more Providing abutting member, and the abutting member is disposed between the bottom temperature sensor and the fire frame, and moves up and down in synchronization with the thermal head of the bottom temperature sensor, and along the bottom temperature sensor Outside the week, separated by a predetermined interval And more than three places abut against the bottom surface of the conditioning container. A gas furnace with a bottom temperature sensor attached to the first aspect of the patent application, wherein the abutting member is provided with: a plurality of arms, which are viewed from above and along the front The extension line of the protruding direction of the fire frame claw is uniform, and is radially extended from the bottom temperature sensor; and the abutting portion is formed on the upper surface of the arm portion and abuts against the bottom surface of the conditioning container By. A gas furnace with a bottom temperature sensor attached to the first or second aspect of the patent application, wherein the abutting member is detachably disposed at the bottom temperature of the pan The thermal head of the sensor.