JPH08210647A - Gas control device - Google Patents

Abstract

PURPOSE: To control the heating power of a burner with a simple construction without using an AC power source and reduce cost by a common use of components by installing a solenoid ON/OFF valve to the upstream of a control valve of a main gas line and connecting a bypass line provided with an orifice to the control valve in parallel. CONSTITUTION: A solenoid valve 18, a main valve shaft 20 mounted with a main valve 19 are laid out on the same axial line in a valve main body 17. A flow out hole 24, which allows the gas passing through the main valve 19 to flow out, is bored on the top of the valve main body 17. A main gas line 27, which supplies gas flowing out from the flow out hole 24 to a gas burner, is formed in the flow out hole 24. A control unit 26 provided with a control valve 28 is removably connected on the way of the main gas line 27 where the control valve 28 is designed to control the amount of feed gas to the burner. A solenoid ON/OFF valve 30 is mounted on the upstream of the control valve 28 of the gas main line 27 while a bypass line 34 provided with an orifice is connected to the ON/OFF valve 30 in parallel thereto.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a gas control device for controlling gas supply to a stove burner.

[0002]

2. Description of the Related Art For the purpose of preventing a fire from occurring in the cooking of deep-fried foods such as tempura, the one in which the temperature of the pot bottom is detected by a temperature sensor to adjust the heating power of the burner is disclosed in, for example, Japanese Unexamined Patent Publication No. 4-356619. Similarly, a safety valve and a solenoid valve for controlling thermal power are provided in the gas passage to the burner, and these valves and the like are operated by using an AC power source.

[0003]

On the other hand, the blinking operation of the burner is performed by using the ignition and fire extinguishing button 6 which does not use an AC power source and which is mechanically operated in the same manner as an instrument of a dry battery specification. The safety valve and the solenoid valve use an AC power source to supply power in terms of power consumption.

For this reason, it is necessary to wire a cord for AC power supply around the main body of the cooker, and particularly in the case of a gas table or the like, the slack of the power cord makes contact with the high temperature part of the appliance and causes burnout. There is a problem that installation is restricted due to lack of outlets.

Therefore, the present invention is intended to adjust the heating power of a burner with a relatively simple structure without using an AC power source and to reduce the cost by sharing parts.

[0006]

According to the present invention, an electromagnetic safety valve and a main valve shaft equipped with a main valve are arranged on the same axis in a valve body, and a gas passing through the main valve is provided on an upper surface of the valve body. To form a main gas flow path for supplying the gas flowing out from the outflow hole to the burner at the outflow hole portion, and the gas supply amount to the burner is provided in the middle of the main gas flow path. In the case where a control unit equipped with a control valve for control is detachably connected, an electromagnetic on-off valve is installed upstream of the control valve in the main gas flow path, and a bypass passage with an orifice is connected in parallel to this on-off valve. It consists of

Further, according to the present invention, an operating lever for driving and operating the main valve shaft and the like is axially slidably mounted on the same axis as the main valve shaft of the valve body, and is linked to the ignition operation of the operating lever. And an interlocking mechanism for opening and closing the electromagnetic on-off valve.

[0008]

[Operation] By providing an electromagnetic opening / closing valve and a bypass passage in the adjusting unit, the valve body that has been used in the past can be diverted as it is to adjust the thermal power, and the cost can be greatly reduced and the battery power source can be reduced. It can also be driven by.

The interlocking mechanism interlocks with the ignition operation of the operating lever to open the electromagnetic on-off valve to open the electromagnetic on-off valve at the time of ignition of the burner to supply the maximum gas flow rate to the burner. While ensuring performance,
The ignition operation and the opening operation of the electromagnetic opening / closing valve can be properly performed at the timing by operating the operation lever, and the power consumption of the electromagnetic opening / closing valve can be reduced.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described first with reference to FIG. 1. (1) is a cooktop body of a gas table cooker, which is a top plate.
The stove parts (3) and (4) are attached to the left and right of (2),
A burner (6) for a stove, which has a built-in grill (5) between these stove sections and is attached to the stove section (3) in the embodiment.
Is a high-calorie burner of around 4,000 kcal, for example, and a burner (7) for the stove attached to the stove part (4)
Is a standard burner of about 2,000 kcal.

Reference numeral (8) is an operation panel mounted on the front surface of the stove body (1), which is located in front of the stove portions (3) and (4) and is slid to the left and right to operate the burner for the stove.
(6) (7) and the operation knobs (9), (10) and (11) for adjusting the heating power of the grill burner (not shown) in the grill (5) are mounted and located below these operation knobs. The ignition knobs (12), (13) and (14) for performing the blinking operation of the stove burners (6) and (7) and the grill burner by the push and push operation are arranged.

Further, for example, a temperature sensor (15) for detecting the temperature of the food to be cooked, which uses a thermistor or the like, is arranged at the substantially central portion of the burner (6) for the stove, and the operation panel (8) Above, for example, the ignition knob (12), a mode setting switch (16) for setting and inputting a cooking mode such as grilled food cooking, stir-fried food cooking, and fried food cooking is arranged.

FIG. 2 shows a valve device for flashing the burner (6) for the stove. The solenoid valve (18) and the main valve (19) are provided in the valve body (17) formed by aluminum die casting. And a main valve shaft (20) integrally mounted with the main valve shaft are slidably mounted in the axial direction, and one end of the main valve shaft is attached to the valve shaft (2
1) Face the tip and project the other end to the front of the valve body (17), and integrate the ignition valve (22) between the main valve (19) and the other end of the main valve shaft (20). The main gas outlet hole (24) through which the gas that has passed through the valve body (23) of the electromagnetic safety valve (18) and the main valve (19) flows out, and the main valve (19) and the ignition valve. An ignition gas outflow hole (25) through which the gas passing through the portion (22) flows out is opened.

Reference numeral (26) is an adjusting unit connected to the opening surfaces of the main gas outflow hole (24) and the ignition gas outflow hole (25) of the valve body (17) and communicates with the main gas outflow hole (24). Arrange a control valve (28) for thermal power adjustment in the downstream part of the main gas flow path (27)
And a gas outlet (29) for mounting a gas nozzle for gas ejection (not shown) is provided downstream of this control valve, and a solenoid valve (30) is provided upstream of the control valve (28) of the main gas flow path (27). Are installed.

The solenoid on-off valve (30) is the main gas flow path.
The auxiliary valve shaft (33) is connected to the auxiliary valve (32) that opens and closes the auxiliary valve seat (31) formed in the middle of (27), and the tip of this auxiliary valve shaft is connected to the adjustment unit (26). It projects to the front.

Further, the adjusting unit (26) has a bypass passage for bypassing the electromagnetic opening / closing valve (30) of the main gas passage (27).
(34) is formed, and in this bypass passage, the flow rate of gas passing through the passage is set in advance (for example, 2, 4
An orifice (35) that restricts the flow rate to around 00 kcal is provided, and one end communicates with the ignition gas outflow hole (25) of the valve body (17) and the other end communicates with the gas outlet (29). The ignition gas flow path (36) is formed.

(37) is an operating lever which is mounted on the front surface of the valve body (17) on the same axis as the main valve shaft (20) and is slidable in the axial direction. For example, a heart-shaped guide groove (38) is formed, and the tip of the pin (39) is inserted into this guide groove, and this pin and the guide groove (3
In combination with 8), push-push operation is performed by pushing the operation lever (37) in the axial direction.

Further, an operating portion (41) for driving the interlocking lever (40) mounted on the protruding portion of the sub valve shaft (33) at the time of ignition operation is integrally formed at an appropriate position of the operating lever (37), Operating lever (3
By pushing the 7) to the ignition position (pushing the main valve shaft (20) to the valve open set position of the electromagnetic safety valve (18)), the tip of the interlocking lever (40) is driven by the operating part (41). , The interlocking lever (40) abuts the locking ring (42) mounted on the sub valve shaft (33) and slides the sub valve shaft (33) in the axial direction to open the solenoid valve (30).
Open the auxiliary valve (32) of.

FIG. 3 shows a combustion control circuit (43) for controlling combustion of the stove burners (6) and (7) and the grill burner. For example, an arithmetic circuit (44) composed of a microcomputer is shown. A flame detection circuit (46) that detects the electromotive force of a thermocouple (45) that is heated by the combustion flames of the burners (6) and (7) to generate an electromotive force and outputs a flame presence signal to the input, A switch detection circuit (49) for detecting an open / closed state of an ignition switch (47) and a cock switch (48) for detecting an ignition operation and a fire extinguishing operation by the ignition knobs (12), (13), (14), and the mode setting switch. A mode setting circuit (50) that detects the input operation of (16) and detects the set cooking mode, and a temperature detection circuit (51) that detects the temperature of the cooking object from the output of the temperature sensor (15).
And a safety valve drive circuit (54) for connecting the power supply circuit (53), etc., which supplies a power source configured by the dry battery (52) and detects the power supply voltage, and operates the electromagnetic safety valve (18) to the output.
Similarly, an on-off valve drive circuit (55) that also operates the electromagnetic on-off valve (30), an igniter drive circuit (57) that operates an igniter (56) that ignites by generating discharge in the combustion section of each burner, etc. Are connected.

In addition, the arithmetic circuit (44) is ignited by the outputs of the switch detection circuit (49) and the flame detection circuit (46) to burner burner (6) for a predetermined time (for example, a preset time). A timer circuit (58) for outputting an off signal to the opening / closing valve drive circuit (55) after 10 minutes) is provided.

The operation of the burner (6) for the stove will now be described. When the ignition operation is performed by pushing the ignition knob (12), the arithmetic circuit (44) receives the output from the switch detection circuit (49). Is detected and the igniter drive circuit (57) operates the igniter (56), and the safety valve drive circuit (54) and the open / close valve drive circuit (55) respectively operate the electromagnetic safety valve (18) and the electromagnetic open / close valve (3).
(0) is supplied with electric power for holding the valve open, and the main gas outflow hole (24) and ignition gas outflow hole (25) of the valve body (17) and the main gas flow path (27) of the adjustment unit (26) Gas is supplied from the gas outlet (29) to the stove burner (6) through the bypass passage (34) and the ignition gas flow path (36) to ignite the burner.

During the ignition operation of the ignition knob (12), the operation lever (37) slides in the axial direction by pushing the ignition knob, and the main shaft valve (20) slides by the operation lever, so that the electromagnetic safety valve When the valve body (23) of (18) is set to open, the main valve
(19) is opened, gas is supplied from the main gas outflow hole (24), and the ignition valve portion (22) is also opened to supply gas from the ignition gas outflow hole (25).

Further, by the ignition operation of the operation lever (37),
The auxiliary valve shaft (33) slides through the interlocking lever (40) to open and set the auxiliary valve (32) of the solenoid valve (30), and
The gas supplied from (4) is supplied to the gas outlet (29) through the main gas flow path (27) and the bypass passage (34) and the post-regulation valve (28), and at the same time, the ignition gas outflow hole (25 The gas supplied from () is supplied to the gas outlet (29) through the ignition gas flow path (36).

On the other hand, when the burner (6) for the stove is ignited, the arithmetic circuit (44) detects this by the output of the flame detection circuit (46), and the holding power to the electromagnetic safety valve (18) and the electromagnetic on-off valve (30). When the flame detection circuit (46) outputs a signal indicating no flame, the power supply to the electromagnetic safety valve (18) and the electromagnetic on-off valve (30) is stopped to prevent the spouting of raw gas. To do.

When the burner 6 for the stove is started to burn for a predetermined time, an off signal is output from the timer circuit 58 to close the electromagnetic on-off valve 30 through the on-off valve drive circuit 55. Burner for the stove via the bypass passage (34) only
Supply gas to (6).

As a result, even if the control valve (28) is fully opened and the burner (6) for the stove burns at the maximum heating power, the timer circuit (58) forcibly reduces the heating power of the burner after a lapse of a predetermined time. By doing so, the burner for the stove of the stove body (1)
Even if the house wall is adjacent to the (6) side, the occurrence of fire due to the temperature rise of the wall surface is prevented.

In the above embodiment, the timer circuit (58) reduces the heating power of the burner (6) for a predetermined time after ignition of the stove burner (6). The temperature of the object may be detected, and when the temperature of the object to be cooked exceeds a predetermined temperature, the electromagnetic opening / closing valve (30) may be closed to reduce the heat power.

[0028]

According to the structure of the present invention, the adjusting unit
By providing an electromagnetic on-off valve and a bypass passage that bypasses this on-off valve, it is possible to add a thermal power control function without using an AC power source with a relatively simple structure, and the cock body that was used in the past is almost unchanged. By using it, the cost can be greatly reduced.

Further, according to the present invention, by providing the interlocking mechanism for opening and closing the electromagnetic opening / closing valve in conjunction with the ignition operation of the operating lever, the timing of the ignition operation of the operating lever and the opening operation of the electromagnetic opening / closing valve can be made uniform. Therefore, the ignition performance can be maintained.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment according to the present invention.

FIG. 2 is a side elevational cross-sectional view of the valve device according to a partially broken view.

FIG. 3 is a block diagram of a combustion control circuit of the same.

[Explanation of symbols]

 6 Burner for stove 7 Burner for stove 17 Valve body 18 Electromagnetic safety valve 19 Main valve 20 Main valve shaft 24 Main gas outlet hole 26 Control unit 27 Main gas flow path 28 Control valve 30 Electromagnetic on-off valve 34 Bypass passage 35 Orifice 37 Operation lever 40 Interlocking lever

Front Page Continuation (72) Inventor Mitsunori Ishimura 3-201 Minamiyoshikata, Tottori City, Tottori Sanyo Denki Co., Ltd. (72) Yoshihito Taga 3-201 Minamiyoshikata, Tottori City, Tottori Prefecture Sanyo Denki Co., Ltd.

Claims (2)

[Claims] 1. An electromagnetic safety valve and a main valve shaft equipped with a main valve are arranged on the same axis in a valve body, and an outflow hole for letting out gas passing through the main valve is provided on an upper surface of the valve body. A control valve that opens a main gas flow path for supplying the gas flowing out from the outflow hole to the burner in the outflow hole portion, and adjusts the gas supply amount to the burner in the middle of the main gas flow path. In the case of detachably connecting a control unit having a solenoid valve, an electromagnetic opening / closing valve is mounted upstream of the control valve in the main gas flow path, and a bypass passage having an orifice is connected in parallel to the opening / closing valve. A gas control device. 2. An operation lever for driving and operating the main valve shaft and the like is axially slidably mounted on the same axis as the main valve shaft of the valve body, and is interlocked with ignition operation of the operation lever. The gas control device according to claim 1, further comprising an interlocking mechanism for opening and closing the electromagnetic on-off valve.