CN215863553U

CN215863553U - Dry burning prevention structure with safety prompt

Info

Publication number: CN215863553U
Application number: CN202122461072.4U
Authority: CN
Inventors: 柯超
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-12
Filing date: 2021-10-12
Publication date: 2022-02-18
Anticipated expiration: 2031-10-12

Abstract

The present application relates to the technical field of gas cookers, in particular to a dry-burning prevention structure with a safety prompt, which includes a control main board, a first dry-burning prevention sensor, a flameout protection component and an alarm system; the flameout protection component includes a burner, an ion A probe, a capacitor electrically connected to the ion probe, a detection module for detecting the charging and discharging state of the capacitor, and a first solenoid valve arranged on the gas channel of the burner head, when the gas of the burner head burns, the ion probe, the flame and the burner head A conductive loop is formed between the bottom shells and the capacitor is charged; the alarm system is electrically connected to the control board; the first anti-dry-burning sensor is connected in series between the first solenoid valve and the capacitor, and the first anti-dry-burning sensor is connected in parallel with the first The switch is controlled, and when the sensing temperature of the first anti-dry-burning sensor exceeds the threshold value, the first solenoid valve is de-energized and the gas channel of the burner head is closed. The present application enables users to independently activate the anti-dry burning function, and at the same time has the effect of double flameout protection.

Description

Dry burning prevention structure with safety prompt

Technical Field

The application relates to the field of gas cooker technology, in particular to an anti-dry burning structure with a safety prompt.

Background

The traditional dry burning prevention structure is mainly characterized in that a dry burning prevention sensor is connected in series in an flameout protection structure, when the temperature sensed by the dry burning prevention sensor exceeds a threshold value, the dry burning prevention sensor cuts off a circuit of the flameout protection structure, an electromagnetic valve is automatically closed when power is lost, a gas channel of a burner is cut off, and the dry burning prevention function is realized.

But because traditional flame-out protection structure adopts the form of thermocouple more, and the thermocouple makes flame-out protection structure delay flame-out because self characteristic for alarm system has the hysteresis quality, simultaneously because some pans heat conductivity is poor, makes the pan local intensification fast, easily causes the dry combustion method structure erroneous judgement, influences user experience and feels.

SUMMERY OF THE UTILITY MODEL

To the not enough of above-mentioned technique existence, this application provides a take safety prompt's prevent dry combustion method structure.

The application provides a take safety suggestion prevent dry combustion method structure adopts following technical scheme:

an anti-dry burning structure with a safety prompt comprises a control main board, a first anti-dry burning sensor, a flameout protection assembly and an alarm system;

the flameout protection assembly comprises a furnace end, an ion probe arranged in the furnace end, a capacitor arranged in the control mainboard and electrically connected with the ion probe, a detection module arranged on the control mainboard and used for detecting the charge-discharge state of the capacitor, and a first electromagnetic valve arranged on a gas channel of the furnace end, wherein the first electromagnetic valve is electrically connected with the control mainboard;

the alarm system is electrically connected with the control main board;

first prevent dry combustion method sensor is used for responding to the temperature of pan bottom, first prevent dry combustion method sensor establishes ties between first solenoid valve and condenser, first prevent dry combustion method sensor parallel connection has first control switch, and works as when first prevent dry combustion method sensor's induced temperature surpassed the threshold value, first solenoid valve loses the electricity and closes furnace end gas passageway.

Preferably, the flameout protection assembly further comprises a thermocouple arranged in the burner and a second electromagnetic valve used for controlling the communication state of the burner gas channel, the second electromagnetic valve is electrically connected with the thermocouple, and the second electromagnetic valve is electrically connected with the control main board.

Preferably, a second dry-heating preventing sensor is further connected in series between the thermocouple and the second electromagnetic valve.

Preferably, an ignition needle is further arranged in the furnace end, and the ion probe is arranged on the ignition needle.

Preferably, the alarm system comprises a buzzer, a light alarm and a power supply which are electrically connected with the control main board.

Preferably, the second dry burning prevention sensor is connected in parallel with a control switch, and the control switch is used for controlling the communication state between the second dry burning prevention sensor and the second electromagnetic valve.

Preferably, the dry burning prevention sensor is a temperature controller.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the structure that the first anti-dry heating sensor is connected with the first control switch in parallel and the second anti-dry heating sensor is connected with the second control switch in parallel, a user can control whether to start the anti-dry heating function or not by opening and closing the first control switch and the second control switch, so that the cooker avoids a pot heating time period of a pot with slow heat conduction, misjudgment is avoided, and the user experience is improved;

2. through the arrangement of the structure that the ion probe, the capacitor and the detection module are matched with each other, when the furnace end is in flame combustion, the capacitor is in a charging state, when the furnace end is flamed out accidentally, the capacitor is in a discharging or power-off state, when the detection module detects that the capacitor is in the discharging or power-off state, the detection module can quickly respond to control the first electromagnetic valve to close a gas channel, and synchronously generate alarm safety prompts such as sound and light;

3. through the arrangement of the structure that the thermocouple and the second electromagnetic valve are matched with each other, another dry burning prevention function can be formed, and when the dry burning prevention loop with the ion probe fails, the dry burning prevention loop with the thermocouple can play a role in supplementing and correcting.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

Description of reference numerals: 1. a control main board; 2. a first dry-fire prevention sensor; 3. a flameout protection assembly; 31. a furnace end; 32. an ion probe; 33. a capacitor; 34. a detection module; 35. a first solenoid valve; 36. a thermocouple; 37. a second solenoid valve; 4. an alarm system; 41. a buzzer; 42. a lamp tube alarm; 43. a power source; 5. a first control switch; 6. a second dry-fire prevention sensor; 7. an ignition needle; 8. a second control switch.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, a plurality of means is two or more, and greater than, less than, more than, etc. are understood as excluding the present number, and greater than, less than, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless explicitly defined otherwise, the terms "disposed," "mounted," "connected," and the like are to be understood in a broad sense, and for example, may be directly connected or indirectly connected through an intermediate; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be a mechanical connection; either as communication within the two elements or as an interactive relationship of the two elements. The specific meaning of the above-mentioned words in the present invention can be reasonably determined by those skilled in the art in combination with the detailed contents of the technical solutions.

The present application is described in further detail below with reference to fig. 1.

The embodiment of the application discloses a dry burning prevention structure with a safety prompt. Referring to fig. 1, the dry burning prevention structure with safety prompt includes a control main board 1, a first dry burning prevention sensor 2, a flameout protection assembly 3 and an alarm system 4;

the flameout protection assembly 3 comprises a burner 31, an ion probe 32 arranged in the burner 31, a capacitor 33 arranged in the control main board 1 and electrically connected with the ion probe 32, a detection module 34 arranged on the control main board 1 and used for detecting the charge-discharge state of the capacitor 33, and a first electromagnetic valve 35 arranged on a gas channel of the burner 31, wherein the first electromagnetic valve 35 is electrically connected with the control main board 1, when the gas of the burner 31 is combusted, a conductive loop is formed among the ion probe 32, flame and a bottom shell of the burner 31, and the capacitor 33 is charged;

the alarm system 4 is electrically connected with the control mainboard 1;

the first dry burning prevention sensor 2 is used for sensing the temperature of the bottom of the cookware, the first dry burning prevention sensor 2 is connected in series between the first electromagnetic valve 35 and the capacitor 33, the first dry burning prevention sensor 2 is connected in parallel with the first control switch 5, and when the sensing temperature of the first dry burning prevention sensor 2 exceeds a threshold value, the first electromagnetic valve 35 is powered off and the gas channel of the burner 31 is closed.

In the utility model, when the anti-dry burning structure works, when the first anti-dry burning sensor 2 senses that the temperature at the bottom of the pot exceeds the threshold value, the first anti-dry burning sensor 2 cuts off the loop where the ion probe 32 is located, the capacitor 33 is in a non-charging state, the control main board 1 can quickly react, the first electromagnetic valve 35 is controlled to close the gas channel of the burner 31, the flame of the burner 31 is extinguished, and the alarm safety prompts such as sound and light are synchronously sent out. When the cookware is in the stage of heating the cookware and the like, a user can short circuit the first dry burning prevention sensor 2 through the first control switch 5, so that the first dry burning prevention sensor 2 is not connected to a loop, and further, the dry burning prevention function is not started, thereby avoiding misjudgment and improving the user experience.

Specifically, referring to fig. 1, the flameout protection assembly 3 further includes a thermocouple 36 disposed in the burner 31 and a second electromagnetic valve 37 for controlling a communication state of a gas channel of the burner 31, the second electromagnetic valve 37 is electrically connected to the thermocouple 36, and the second electromagnetic valve 37 is electrically connected to the control main board 1. Through the second electromagnetic valve 37 and the thermocouple 36, the thermoelectric potential generated by the heating of the thermocouple 36 is used for maintaining the second electromagnetic valve 37 in the open state, and double protection of flameout protection is realized.

Further, in some embodiments, the first electromagnetic valve 35 and the second electromagnetic valve 37 are one electromagnetic valve, and the electromagnetic valve is connected with the above two control loops, and the control main board 1 can close the electromagnetic valve by determining that the burner 31 is turned off; the thermoelectric force of the thermocouple 36 disappears and the solenoid valve can be closed.

Further, referring to fig. 1, a second dry burning prevention sensor 6 is further connected in series between the thermocouple 36 and the second electromagnetic valve 37, the second dry burning prevention sensor 6 is connected in parallel with a second control switch 8, and the second control switch 8 is used for controlling a communication state between the dry burning prevention sensor and the second electromagnetic valve 37. The second prevents dry combustion method sensor 6 can detect the temperature of pan bottom, realizes the second and prevents dry combustion method function again, and second control switch 8 can short circuit the second simultaneously and prevent dry combustion method sensor 6, makes the second prevent dry combustion method sensor 6 not insert the return circuit, and then does not launch and prevent dry combustion method function to avoid causing the erroneous judgement, improve user experience and feel.

In this embodiment, the burner 31 is further provided with an ignition needle 7, and the ion probe 32 can be arranged on the ignition needle 7, so that the integration level is high, and the whole structure of the burner 31 is compact. Of course, in other embodiments, the ion probe 32 and the ignition needle 7 may be separately disposed on the furnace end 31.

Further, referring to fig. 1, the alarm system 4 includes a buzzer 41, a light alarm and a power supply 43 electrically connected to the control main board 1. The power supply 43 can provide power for the control main board 1, the lamp tube alarm 42 and the buzzer 41, and when the stove is accidentally turned off or the pot is in a dry burning state, the buzzer 41 can give out a sound alarm, and the light alarm can give out corresponding warning light to remind the user.

Further, in this embodiment, the first dry-heating prevention sensor 2 and the second dry-heating prevention sensor 6 are both temperature controllers.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. An anti-dry-burning structure with safety prompt is characterized in that: comprising a control main board (1), a first anti-dry-burning sensor (2), a flameout protection assembly (3) and an alarm system (4);

The flameout protection component (3) comprises a burner head (31), an ion probe (32) arranged in the burner head (31), and an ion probe (32) arranged in the control main board (1) and electrically connected to the ion probe (32). A capacitor (33) that is connected to each other, a detection module (34) arranged on the control main board (1) and used for detecting the charging and discharging state of the capacitor (33), and a first gas channel arranged on the gas channel of the burner head (31). A solenoid valve (35), the first solenoid valve (35) is electrically connected with the control main board (1), when the gas of the burner (31) burns, the ion probe (32), the flame And a conductive loop is formed between the bottom shell of the burner head (31), and the capacitor (33) is charged;

The alarm system (4) is electrically connected with the control main board (1);

The first anti-dry burning sensor (2) is connected in series between the first solenoid valve (35) and the capacitor (33), the first anti-dry burning sensor (2) is connected in parallel with a first control switch (5), and When the sensed temperature of the first dry-burn prevention sensor (2) exceeds a threshold value, the first solenoid valve (35) is de-energized and the gas passage of the burner head (31) is closed.

2 . The dry-burning prevention structure with a safety prompt according to claim 1 , wherein the flame-out protection assembly ( 3 ) further comprises a thermocouple ( 36 ) arranged in the burner head ( 31 ). 3 . and a second solenoid valve (37) for controlling the communication state of the gas passage of the burner head (31), the second solenoid valve (37) is electrically connected with the thermocouple (36), and the second solenoid valve (37) is electrically connected to the thermocouple (36). The valve (37) is electrically connected with the control main board (1).

3. The anti-dry-burning structure with safety prompt according to claim 2, characterized in that: a second anti-dry-burning sensor is also connected in series between the thermocouple (36) and the second solenoid valve (37) (6).

4. The anti-dry burning structure with a safety prompt according to claim 1, characterized in that: the burner head (31) is further provided with an ignition needle (7), and the ion probe (32) is provided in the on the ignition needle (7).

5. The anti-dry burning structure with safety prompt according to claim 1, characterized in that: the alarm system (4) comprises a buzzer (41) electrically connected to the control motherboard (1) , light warning device and power supply (43).

6. The anti-dry-burning structure with a safety prompt according to claim 3, characterized in that: the second anti-dry-burning sensor (6) is connected in parallel with a second control switch (8), and the second control switch (8) is connected in parallel. The switch (8) is used to control the communication state between the anti-dry burning sensor and the second solenoid valve (37).

7. The anti-dry-burning structure with a safety prompt according to claim 3, wherein the first anti-dry-burning sensor (2) and the second anti-drying-burning sensor (6) are thermostats .