Stove and ignition control method

Abstract

The invention belongs to the technical field of kitchen equipment, and discloses a stove and an ignition control method. The stove comprises an ignition needle, a combustor, an auxiliary gas outlet piece and a valve assembly, a gas mixing cavity is formed in the combustor, an ignition hole communicated with the gas mixing cavity is formed in the combustor, and the ignition hole faces the ignition needle; an auxiliary gas outlet hole is formed in the auxiliary gas outlet piece, and the auxiliary gas outlet hole is formed towards the ignition hole and the ignition needle; the valve assembly is communicated with the gas mixing cavity or the auxiliary gas outlet hole in a switchable mode so as to introduce fuel gas into the gas mixing cavity or the auxiliary gas outlet hole. When ignition fails due to blockage of the ignition hole, the valve assembly is switched to be communicated with the auxiliary air outlet hole so as to introduce fuel gas to the auxiliary air outlet piece, the ignition needle is started at the moment, flames can be ignited on the outer side of the combustor, the flames can burn impurities at the ignition hole so that the impurities at the ignition hole can be carbonized, and the problem that the ignition hole is blocked is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen equipment, and in particular to a stove and an ignition control method. Background Art

[0002] With the continuous development of the kitchen appliance market, customer complaints about burner ignition failure and fire failure in stoves have increased year by year. Through analysis of complaints, most ignition failure and fire failure are caused by ignition hole blockage, which is not easy for users to identify, leading to user complaints. In particular, when the inner ring fire cover is locked or cannot be removed after long-term use, users cannot clean the fire hole of the inner ring fire cover, which causes certain troubles to the user's actual use experience.

[0003] The prior art generally prevents the soup from contacting the ignition hole by setting a soup-proof eave or other protective structures, thereby preventing the ignition hole from being blocked. However, this method has protection defects, and the ignition hole is still blocked. Summary of the invention

[0004] The object of the present invention is to provide a stove and an ignition control method, which can solve the problem that the ignition hole is blocked and the ignition cannot be ignited.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A cooking appliance, comprising:

[0007] Ignition needle;

[0008] A burner, wherein a gas mixing chamber is disposed in the burner, and an ignition hole communicating with the gas mixing chamber is disposed on the burner, and the ignition hole faces the ignition needle;

[0009] An auxiliary gas outlet member, wherein the auxiliary gas outlet member is provided with an auxiliary gas outlet hole, and the auxiliary gas outlet hole is arranged toward the ignition hole and the ignition needle;

[0010] The valve assembly is switchably connected to the gas mixing chamber or the auxiliary gas outlet hole to pass the gas to the gas mixing chamber or the auxiliary gas outlet hole.

[0011] As an optional solution of the above-mentioned stove, the ignition hole and the ignition needle are arranged along the radial direction of the burner, and along the radial direction of the burner, the auxiliary air outlet piece is located between the ignition hole and the ignition needle, and along the circumferential direction of the burner, the auxiliary air outlet piece is staggered with the ignition needle and the ignition hole, respectively.

[0012] As an optional solution of the above-mentioned stove, there are at least two ignition holes, and at least two of the ignition holes are arranged at intervals along the circumference of the burner. Along the circumference of the burner, the ignition needle and all the ignition holes are located on the same side of the auxiliary air outlet.

[0013] As an optional solution of the above stove, the dimension of the auxiliary air outlet along the radial direction of the burner is defined as a width dimension, and the width dimension gradually increases along the flow direction of the airflow in the auxiliary air outlet.

[0014] As an optional solution of the above stove, the stove further includes an air blowing component, and the air blowing component is connected to the auxiliary air outlet hole to blow air toward the ignition hole.

[0015] As an optional solution of the above stove, the valve assembly includes a valve body and a main passage and a secondary passage respectively connected to the valve body, the main passage is connected to the gas mixing chamber, and the secondary passage is connected to the auxiliary gas outlet;

[0016] The air blowing assembly comprises a fan, and the fan is connected to the auxiliary air outlet member.

[0017] As an optional solution of the above-mentioned stove, the air blowing assembly further includes an air collecting member, and the air collecting member is respectively connected to the auxiliary air outlet member, the secondary passage and the fan.

[0018] An ignition control method is applied to the above-mentioned cooker, and the ignition control method comprises:

[0019] After executing the ignition operation, determine whether the ignition is successful;

[0020] If not, the valve assembly is switched to communicate with the auxiliary air outlet, and the ignition needle is started to generate flame to burn the foreign matter at the ignition hole.

[0021] As an optional solution of the above ignition control method, the ignition control method further includes:

[0022] After the valve assembly is switched to communicate with the auxiliary air outlet and maintained for a first preset time, the valve assembly is closed and blows air toward the ignition hole and the ignition needle through the auxiliary air outlet.

[0023] As an optional solution of the above ignition control method, before the valve assembly is switched to communicate with the auxiliary air outlet, the method further includes:

[0024] A first reminder procedure is executed to prompt the user to start the ignition needle.

[0025] Beneficial effects of the present invention:

[0026] In the stove provided by the present invention, when the ignition hole is blocked and ignition fails, the valve assembly is switched to be connected with the auxiliary gas outlet to supply gas to the auxiliary gas outlet. At this time, the ignition needle is started to ignite a flame on the outside of the burner. The flame can burn impurities at the ignition hole to carbonize the impurities at the ignition hole, thereby solving the problem of ignition hole blockage.

[0027] After burning the impurities at the ignition hole, the valve assembly switches to communicate with the gas mixing chamber. By introducing fuel gas into the gas mixing chamber, the fuel gas can push the carbonized impurity debris in the ignition hole out to further clean the ignition hole.

[0028] The stove also includes an air blast assembly, which is connected to the auxiliary air outlet. The air blast assembly can drive the air flow through the auxiliary air outlet of the auxiliary air outlet piece and blow it toward the ignition hole and the ignition needle. By blowing, the impurities in the ignition hole and between the ignition hole and the ignition needle after combustion are blown away to ensure successful ignition.

[0029] The ignition control method provided by the present invention can ignite the gas from the outside of the burner through the cooperation of the auxiliary air outlet hole and the ignition needle, and burn the impurities at the ignition hole to carbonize the impurities. This can effectively solve the problem of the fire hole of the user's fire cover being difficult to clean, greatly reduce the customer complaint rate, and improve the product usage experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a structural schematic diagram of a cooker provided in Embodiment 1 of the present invention;

[0031] Figure 2 is an exploded view of the cooker provided in Embodiment 1 of the present invention;

[0032] Figure 3 is a schematic structural diagram of the cooker provided in the first embodiment of the present invention when the panel is not assembled;

[0033] Figure 4 yes Figure 3 A partial enlarged view of the middle A;

[0034] Figure 5 is a schematic diagram of the structure of a panel provided in Embodiment 1 of the present invention;

[0035] Figure 6 is a first flow chart of an ignition control method provided in Embodiment 2 of the present invention;

[0036] Figure 7 This is a second flow chart of the ignition control method provided in the second embodiment of the present invention.

[0037] In the figure:

[0038] 100, stove body; 110, panel; 111, display panel; 112, knob; 113, avoidance hole; 114, installation hole; 120, chassis; 200, ignition needle; 300, burner; 310, gas distributor; 320, outer ring fire cover; 330, inner ring fire cover; 331, ignition hole; 340, ejector assembly; 400, auxiliary air outlet; 410, auxiliary air outlet; 500, thermocouple; 600, water tray; 710, main control board; 720, auxiliary control board; 800, valve assembly; 810, valve body; 820, main passage; 830, auxiliary passage; 900, air blast assembly; 910, mounting frame; 920, fan; 930, air collecting piece. DETAILED DESCRIPTION

[0039] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0040] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0042] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0043] Embodiment 1

[0044] This embodiment provides a stove, such as Figure 1 As shown, the stove includes a stove body, a burner 300, an ignition needle 200 and a valve assembly 800. The ignition needle 200, the burner 300 and the valve assembly 800 are all arranged on the stove body. A gas mixing cavity is arranged in the burner 300. The burner 300 is provided with an ignition hole 331 connected to the gas mixing cavity (see Figure 4 ), the ignition hole 331 is arranged toward the ignition needle 200; the valve assembly 800 can be connected with the gas mixing chamber in the burner 300, and is used to introduce fuel gas into the burner 300; after the ignition needle 200 is started, sparks can be generated to ignite the fuel gas to form a flame.

[0045] Alternatively, if Figure 1 As shown, the stove body includes a chassis 120 and a panel 110 arranged on the chassis 120. An installation cavity is enclosed between the chassis 120 and the panel 110. The valve assembly 800 and part of the burner 300 are located in the installation cavity to improve the modularity of the stove and protect the burner 300 and the valve assembly 800.

[0046] Optionally, the cooker further comprises a knob 112, one end of which is connected to the valve assembly 800, and the other end of which extends out of the mounting cavity through a mounting hole 114 on the panel 110. The knob 112 can move relative to the cooker body 100 to drive the valve assembly 800 to open and close; and the knob 112 is electrically connected to the ignition needle 200, so that when the knob 112 rotates relative to the cooker body 100, the ignition needle 200 is activated to generate sparks, thereby igniting the gas.

[0047] In some embodiments, the knob 112 can rotate relative to the stove body 100 and move vertically. When the knob 112 is pressed down and rotated, the valve assembly 800 is opened and the ignition needle 200 is activated.

[0048] It should be noted here that the knob 112, valve assembly 800 and ignition needle 200 are all prior arts in the field. The present invention can adopt any structure and connection method of the knob 112, valve assembly 800 and ignition needle 200 in the prior art, as long as the user can control the opening and closing of the valve assembly 800 and the start and stop of the ignition needle 200 through the knob 112, and no specific limitation is made in the present invention.

[0049] In the existing stoves, the ignition hole 331 on the burner 300 is easily clogged, and most of the ignition failures and the phenomenon of not being able to keep the fire are caused by the blockage of the ignition hole 331. Although the current burner 300 is provided with a series of structural improvements such as a soup-proof eaves to prevent the soup from clogging the ignition hole 331, there are still protection defects, and the problem of the ignition hole 331 being blocked cannot be solved.

[0050] To solve the above problems, Figure 1-Figure 4 As shown, the stove in this embodiment also includes an auxiliary gas outlet member 400, on which an auxiliary gas outlet hole 410 is provided, and the auxiliary gas outlet hole 410 is arranged toward the ignition hole 331 and the ignition needle 200; the valve assembly 800 can be switched to communicate with the gas mixing chamber or the auxiliary gas outlet hole 410 to pass gas to the gas mixing chamber or the auxiliary gas outlet hole 410. When the ignition hole 331 is blocked and causes ignition failure, the valve assembly 800 switches to communicate with the auxiliary gas outlet hole 410 to pass gas to the auxiliary gas outlet member 400. At this time, the ignition needle 200 is started, and a flame can be ignited on the outside of the burner 300. The flame can burn impurities at the ignition hole 331 to carbonize the impurities at the ignition hole 331 to solve the problem of ignition hole 331 being blocked.

[0051] It is understandable that the impurities blocking the ignition hole 331 are generally combustibles, which can be carbonized through combustion to prevent the impurities from continuing to block the ignition hole 331. The user does not need to manually disassemble the burner 300 and clean the ignition hole 331. The operation is convenient and efficient, which is conducive to improving the user experience.

[0052] After burning the impurities at the ignition hole 331 , the valve assembly 800 is switched to communicate with the gas mixing chamber. By introducing fuel gas into the gas mixing chamber, the fuel gas can push the carbonized impurity debris in the ignition hole 331 out to further clean the ignition hole 331 .

[0053] In some embodiments, the burner 300 includes a gas distributor seat 310, an inner ring fire cover 330 and an outer ring fire cover 320. The inner ring fire cover 330 and the outer ring fire cover 320 are both arranged on the gas distributor seat 310, and respectively enclose an outer ring gas mixing chamber and an inner ring gas mixing chamber with the gas distributor seat 310, and the outer ring gas mixing chamber is sleeved outside the inner ring gas mixing chamber. Among them, the ignition hole 331 is arranged on the inner ring fire cover 330, and correspondingly, the ignition needle 200 and the auxiliary gas outlet 400 pass through the gas distributor seat 310 and are located between the inner ring fire cover 330 and the outer ring fire cover 320.

[0054] The air outlet range of the auxiliary air outlet 410 covers the ignition hole 331 and the ignition needle 200. On the one hand, it ensures that the gas flowing out of the auxiliary air outlet 410 can be ignited by the ignition needle 200 faster and more quickly to avoid leakage of the gas; on the other hand, it can ensure that the flame formed after the gas at the auxiliary air outlet 410 is ignited can contact the ignition hole 331 to burn impurities in the ignition hole 331.

[0055] In some embodiments, Figure 4As shown, the ignition needle 200 and the ignition hole 331 are arranged along the radial direction of the burner 300 (specifically, the radial direction of the inner ring fire cover 330), so that the ignition needle 200 and the ignition hole 331 are arranged opposite to each other, so that the spark generated by the ignition needle 200 can ignite the gas flowing out of the ignition hole 331; along the radial direction of the burner 300, the auxiliary gas outlet 400 is located between the ignition hole 331 and the ignition needle 200, so that the auxiliary gas outlet 400 is relatively close to the ignition needle 200 and the ignition hole 331. The auxiliary air outlet piece 400 is small, which facilitates the cooperation between the auxiliary air outlet piece 400 and the ignition hole 331 and the ignition needle 200 respectively; along the circumference of the burner 300 (specifically, the circumference of the inner ring fire cover 330), the auxiliary air outlet piece 400 is staggered with the ignition hole 331 and the ignition needle 200 respectively, that is, the auxiliary air outlet hole 410 is not directly opposite to the ignition hole 331 and the ignition needle 200 along the radial direction of the burner 300, thereby avoiding the auxiliary air outlet piece 400 interfering with the cooperation between the ignition needle 200 and the ignition hole 331.

[0056] In some embodiments, in order to ignite more efficiently, the number of ignition holes 331 is set to at least two, and at least two ignition holes 331 are arranged at intervals along the circumference of the burner 300 to avoid the situation where ignition cannot be achieved when only a single ignition hole 331 is set.

[0057] It is understandable that ignition failure will occur only when all ignition holes 331 are blocked. By providing at least two ignition holes 331, the probability of ignition failure can be reduced to improve the reliability of the burner 300.

[0058] Exemplarily, the number of the ignition holes 331 may be two, three, four or more, which is not specifically limited in the present invention.

[0059] In order to allow the gas flowing out of the auxiliary gas outlet 400 to burn toward the ignition hole 331 and be ignited by the ignition needle 200, in some embodiments, along the circumference of the inner ring fire cover 330, the ignition needle 200 and all the ignition holes 331 are located on the same side of the auxiliary gas outlet 410, so that the gas flowing out of the auxiliary gas outlet 410 can flow to the ignition needle 200 and the ignition hole 331.

[0060] In some embodiments, the plurality of ignition holes 331 are symmetrically arranged relative to the ignition needle 200 along the circumference of the inner ring ignition cover 330, that is, the axis of the ignition needle 200 is substantially the symmetry axis of the plurality of ignition needles 200. This arrangement prevents the distance between the ignition needle 200 and each ignition hole 331 from being too large, and facilitates the ignition needle 200 to ignite the gas flowing out of any ignition hole 331.

[0061] In order to make the gas flowing out of the auxiliary gas outlet 410 burn toward the ignition hole 331 and be ignited by the ignition needle 200, in some embodiments, the dimension of the auxiliary gas outlet 410 along the radial direction of the burner 300 is defined as the width dimension, and the width dimension gradually increases along the flow direction of the airflow in the auxiliary gas outlet 410. In other words, the dimension of the auxiliary gas outlet 410 along the radial direction of the inner ring fire cover 330 changes gradually, and the dimension of the auxiliary gas outlet 410 at one end close to the inside of the auxiliary gas outlet 400 is small, and the dimension of the auxiliary gas outlet 410 at one end close to the outside of the auxiliary gas outlet 400 is large, so that the airflow flowing out of the auxiliary gas outlet 410 is outward-expanding, and can better cover the area where the ignition hole 331 and the ignition needle 200 are located.

[0062] In order to better solve the problem of clogging of the ignition hole 331, the cooker further includes an air blowing assembly 900, which is connected to the auxiliary air outlet 410. The air blowing assembly 900 can drive the air flow through the auxiliary air outlet 410 of the auxiliary air outlet member 400 and blow toward the ignition hole 331 and the ignition needle 200. This arrangement can blow away the impurities burned in the ignition hole 331 and between the ignition hole 331 and the ignition needle 200 by blowing to ensure successful ignition.

[0063] In some embodiments, Figure 2 and Figure 3 As shown, the valve assembly 800 includes a valve body 810 and a main passage 820 and a secondary passage 830 respectively connected to the valve body 810, the main passage 820 is connected to the gas mixing chamber, and the secondary passage 830 is connected to the auxiliary gas outlet 400; the air blowing assembly 900 includes a fan 920, and the fan 920 is connected to the auxiliary gas outlet 400. When the impurities in the ignition hole 331 have been burned and carbonized, the fan 920 is started to send airflow into the auxiliary gas outlet 400 to purge the ignition hole 331 through the auxiliary gas outlet 410.

[0064] To simplify the structure, in some embodiments, the air blowing assembly 900 further includes an air collecting member 930, which is respectively connected to the auxiliary air outlet member 400, the secondary passage 830 and the fan 920. When the valve body 810 is connected to the secondary passage 830, the gas enters the auxiliary air outlet member 400 after passing through the secondary passage 830 and the air collecting member 930; when the impurities in the ignition hole 331 have been burned and carbonized, the fan 920 is started to send the air flow through the air collecting member 930 into the auxiliary air outlet member 400, so as to purge the ignition hole 331 through the auxiliary air outlet hole 410. By providing the air collecting member 930, it is convenient for the fan 920 and the secondary passage 830 to be connected to the auxiliary air outlet member 400, and the connection structure is simplified.

[0065] Optionally, the gas collecting member 930 may be a structure having an inner cavity, such as a box or a three-way pipe, as long as the auxiliary gas outlet member 400, the fan 920 and the secondary passage 830 can be connected.

[0066] In some embodiments, the blowing assembly 900 further includes a mounting frame 910 , which is disposed in the chassis 120 , and the fan 920 and the air collecting member 930 are both disposed on the mounting frame 910 , and the mounting frame 910 is used to fix the fan 920 and the air collecting member 930 .

[0067] Optionally, the mounting frame 910 and the chassis 120 may be connected by fasteners such as screws, or may be fixed by snapping or welding.

[0068] In order to determine whether the ignition is successful, the stove also includes a thermocouple 500, which is arranged on one side of the ignition hole 331. The valve assembly 800 also includes a solenoid valve that controls whether the valve body 810 is connected to the main passage 820. The thermocouple 500 is electrically connected to the solenoid valve, and the solenoid valve is in a normally closed state. After ignition, when the thermocouple 500 detects that the ambient temperature rises, the thermocouple 500 sends an electrical signal to keep the solenoid valve open, so that the valve body 810 is connected to the main passage 820. This process is called the thermocouple 500 successfully sucking the valve. Correspondingly, when the thermocouple 500 detects that the ambient temperature has not changed after ignition, the thermocouple 500 will not suck the valve, and the solenoid valve will remain closed.

[0069] Optionally, the thermocouple 500 and the valve assembly 800 may be electrically connected via a control assembly, and the thermocouple 500 detects the temperature and sends an electrical signal to the control assembly. After receiving the electrical signal, the control assembly controls the solenoid valve in the valve assembly 800 to open or close.

[0070] It should be noted here that the thermocouple 500 and the valve assembly 800 are both prior arts in the art. The present invention can adopt a thermocouple 500 and a valve assembly 800 with any structure and connection relationship in the prior art, which will not be introduced here.

[0071] In some embodiments, the burner 300 also includes an ejector assembly 340, which connects the main passage 820 and the gas mixing chamber. The ejector assembly 340 can pass the gas and adsorbed air into the gas mixing chamber so that the gas in the gas mixing chamber can be mixed with the air to ensure sufficient combustion of the gas.

[0072] It should be noted here that the ejection assembly 340 is a prior art in the art, and the present invention can adopt an ejection assembly 340 of any structure in the prior art, which will not be introduced here.

[0073] In some embodiments, the cooker further includes a water receiving tray 600, which is disposed on the panel 110, and the gas distributor 310 in the burner 300 is located above the water receiving tray 600. The connection position between the gas distributor 310 in the burner 300 and the ejection assembly 340 passes through the water receiving tray 600 and the avoidance hole 113 on the panel 110 in sequence, so as to connect the ejection assembly 340 in the installation cavity with the gas distributor 310 above the water receiving tray 600. The water receiving tray 600 can receive the soup spilled on the burner 300 during cooking, and prevent the soup from entering the installation cavity, thereby preventing the soup from contacting the electrical components in the installation cavity, and ensuring the safety and reliability of the cooker.

[0074] In some embodiments, the stove further includes a display panel 111 , which is disposed on the panel 110 , and is used to display information about blockage of the ignition hole 331 and to remind the user to start the ignition needle 200 to burn impurities in the ignition hole 331 .

[0075] Optionally, the display panel 111 is electrically connected to the control component, and the control component determines whether the ignition hole 331 is blocked according to whether the solenoid valve is successfully sucked. After the ignition hole 331 is blocked, the control component controls the display panel 111 to display information that the ignition hole 331 is blocked, reminding the user to clean the ignition hole 331, so as to remind the user to press down the rotary knob 112 to start the ignition needle 200 to discharge, and then ignite the gas flowing out of the auxiliary gas outlet 410.

[0076] Alternatively, if Figure 2 , Figure 3 and Figure 5 As shown, the control assembly includes a main control board 710 and a sub-control board 720 which are electrically connected. The sub-control board 720 is electrically connected to the display board 111 , and the main control board 710 is electrically connected to the thermocouple 500 , the valve assembly 800 , and the ignition needle 200 , respectively.

[0077] Embodiment 2

[0078] This embodiment provides an ignition control method, which can be applied to the stove in the first embodiment, and can realize automatic cleaning of the ignition hole 331 without disassembling the burner 300. The operation is convenient and the normal use of the stove is ensured.

[0079] Specifically, Figure 6 As shown, the ignition control method includes:

[0080] S1: After executing the ignition operation, determine whether the ignition is successful;

[0081] If the ignition is successful, the ignition hole 331 is not blocked and the cooker can work normally; if the ignition is unsuccessful, the ignition hole 331 is blocked and needs to be cleaned to avoid delaying the normal use of the user.

[0082] S2: If not, the valve assembly 800 is switched to communicate with the auxiliary air outlet 410 and the ignition needle 200 is activated to generate a flame to burn the foreign matter at the ignition hole 331 .

[0083] If ignition fails, it is determined that the ignition hole 331 is blocked. The valve assembly 800 is used to switch the valve path, allowing the gas to flow out through the auxiliary gas outlet 410 and to be ignited by the ignition needle 200 to burn the impurities in the ignition hole 331 through flames, carbonize the impurities, and solve the problem of blockage of the ignition hole 331.

[0084] In some embodiments, in step S1, whether the ignition is successful can be determined by detecting whether the thermocouple 500 has successfully sucked the valve.

[0085] Specifically, the thermocouple 500 cooperates with the solenoid valve in the valve assembly 800 that controls whether the valve body 810 and the main passage 820 are on and off. When the thermocouple 500 detects an increase in the ambient temperature, it is determined that the ignition is successful and the flame increases the ambient temperature. At this time, the electrical signal generated by the thermocouple 500 is transmitted to the main control board 710, and the main control board 710 controls the solenoid valve to remain in an open state, completing the thermocouple 500 valve suction; conversely, if the thermocouple 500 does not detect an increase in the ambient temperature, it is determined that no flame is generated near the thermocouple 500, and the solenoid valve is maintained in a normally closed state.

[0086] In some embodiments, the ignition operation in step S1 refers to that the user presses down and rotates the knob 112, the valve body 810 opens under the action of the knob 112, and the ignition needle 200 starts to generate sparks.

[0087] In some embodiments, Figure 7 As shown, in order to ensure that the flame fully burns the impurities in the ignition hole 331, in step S2, the valve assembly 800 is switched to connect with the auxiliary air outlet 410 and maintains the first preset time to ensure that the flame has sufficient burning time, thereby solving the problem of ignition hole 331 being blocked.

[0088] Optionally, the first preset time length can be 20-60s, preferably 40-60s, to ensure that the impurities are fully burned. Exemplarily, typical non-limiting values ​​of the first preset time length are 20s, 25s, 30s, 35s, 40s, 45s, 50s, 55s, 60s.

[0089] In some embodiments, before step S2, the method further includes:

[0090] The first reminder procedure is executed to prompt the user to start the ignition needle 200 .

[0091] Optionally, executing the first reminder program includes reminding the user that the ignition hole 331 is clogged by text, voice, light or buzzer, and reminding the user that the ignition needle 200 needs to be started to clean the ignition hole 331 .

[0092] To ensure the cleaning effect of the ignition hole 331, in some embodiments, after step S2, the following steps are further included:

[0093] S3: The valve assembly 800 is closed, and air is blown toward the ignition hole 331 and the ignition needle 200 through the auxiliary air outlet hole 410 .

[0094] By blowing air toward the ignition hole 331 and the ignition needle 200 through the auxiliary air outlet 410, the burnt and carbonized debris at the ignition hole 331 and the ignition needle 200 can be swept away by the airflow, thereby further cleaning the ignition hole 331 and the ignition needle 200 to ensure smooth ignition.

[0095] In some embodiments, in order to ensure the purging effect, the duration of blowing toward the ignition hole 331 and the ignition needle 200 through the auxiliary air outlet 410 is a second preset duration to ensure sufficient purging time and improve the cleaning effect of the ignition hole 331.

[0096] Optionally, the second preset time length can be 10-60s, preferably 30-60s, to ensure that the impurities are blown away. Exemplarily, typical non-limiting values ​​of the second preset time length are 10s, 15s, 20s, 25s, 30s, 35s, 40s, 45s, 50s, 55s, and 60s.

[0097] In some embodiments, after step S2 or step S3, the method further includes:

[0098] S4: Go to step S1.

[0099] By igniting again and judging whether the ignition is successful, it is detected whether the ignition hole 331 is cleaned. If the ignition hole 331 is still blocked, the ignition hole 331 is cleaned again according to the above steps; if the ignition is successful, the cooker can be used normally.

[0100] It should be noted that during the re-ignition process, the valve assembly 800 is switched to a state of communication with the gas mixing chamber so as to allow gas to be introduced into the gas mixing chamber through the main passage 820. During this process, the gas flows through the gas mixing chamber to the ignition hole 331, and the gas can push the carbonized impurities and debris in the ignition hole 331 out to further clean the ignition hole 331.

[0101] In some embodiments, between step S3 and step S4, the following steps are further included:

[0102] The second reminder procedure is executed to remind the user that the ignition hole 331 has been cleaned and the ignition operation can be performed.

[0103] Optionally, executing the second reminder program includes reminding the user through text, voice, light or buzzer that the ignition hole 331 has been cleaned, and reminding the user that the ignition needle 200 needs to be started to ignite.

[0104] In some embodiments, before step S2, the method further includes:

[0105] The number of unsuccessful ignitions within the third preset time period is determined. If the number is greater than the preset number, a third reminder program is executed to remind the user to check whether the ignition needle 200 is powered.

[0106] Optionally, executing the third reminder procedure includes reminding the user to check whether the ignition needle 200 is powered by text, voice, light or buzzer.

[0107] Optionally, the third preset time length may be 3-5 minutes, preferably 4-5 minutes, so as to avoid long-term and multiple cleaning of the ignition hole 331 due to power feeding of the ignition needle 200 .

[0108] Optionally, the preset number of times may be 2-5 times, preferably 2-3 times, to avoid long-term and multiple cleaning of the ignition hole 331 due to power feeding of the ignition needle 200 .

[0109] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A cooking appliance, characterized in that: include: Ignition needle (200); A burner (300), wherein a gas mixing chamber is provided in the burner (300), and an ignition hole (331) communicating with the gas mixing chamber is provided on the burner (300), and the ignition hole (331) faces the ignition needle (200); An auxiliary gas outlet member (400), wherein the auxiliary gas outlet member (400) is provided with an auxiliary gas outlet hole (410), and the auxiliary gas outlet hole (410) is arranged toward the ignition hole (331) and the ignition needle (200); The valve assembly (800) is switchably connected to the gas mixing chamber or the auxiliary gas outlet hole (410) to pass the gas to the gas mixing chamber or the auxiliary gas outlet hole (410).

2. The cooker according to claim 1, characterized in that: The ignition hole (331) and the ignition needle (200) are arranged along the radial direction of the burner (300); along the radial direction of the burner (300), the auxiliary gas outlet piece (400) is located between the ignition hole (331) and the ignition needle (200); along the circumferential direction of the burner (300), the auxiliary gas outlet piece (400) is staggered with the ignition needle (200) and the ignition hole (331), respectively.

3. The cooker according to claim 1, characterized in that: At least two ignition holes (331) are provided, and at least two ignition holes (331) are arranged at intervals along the circumference of the burner (300). Along the circumference of the burner (300), the ignition needle (200) and all the ignition holes (331) are located on the same side of the auxiliary air outlet hole (410).

4. The cooker according to claim 1, characterized in that: The dimension of the auxiliary air outlet hole (410) along the radial direction of the burner (300) is defined as a width dimension, and the width dimension gradually increases along the flow direction of the airflow in the auxiliary air outlet hole (410).

5. The cooker according to any one of claims 1 to 4, characterized in that: The stove further comprises an air blowing assembly (900), wherein the air blowing assembly (900) is in communication with the auxiliary air outlet hole (410) so as to blow air toward the ignition hole (331).

6. The cooker according to claim 5, characterized in that: The valve assembly (800) comprises a valve body (810) and a main passage (820) and a secondary passage (830) respectively connected to the valve body (810), the main passage (820) being connected to the gas mixing chamber, and the secondary passage (830) being connected to the auxiliary gas outlet member (400); The air blowing assembly (900) comprises a fan (920), and the fan (920) is connected to the auxiliary air outlet member (400).

7. The cooker according to claim 6, characterized in that: The air blowing assembly (900) further comprises an air collecting member (930), wherein the air collecting member (930) is respectively connected to the auxiliary air outlet member (400), the secondary passage (830) and the fan (920).

8. An ignition control method, characterized in that: Applied to the cooker according to any one of claims 1 to 7, the ignition control method comprises: After executing the ignition operation, determine whether the ignition is successful; If not, the valve assembly (800) is switched to communicate with the auxiliary air outlet hole (410), and the ignition needle (200) is activated to generate a flame to burn the foreign matter at the ignition hole (331).

9. The ignition control method according to claim 8, characterized in that: The ignition control method further comprises: After the valve assembly (800) is switched to communicate with the auxiliary air outlet hole (410) and maintained for a first preset time, the valve assembly (800) is closed and blows air toward the ignition hole (331) and the ignition needle (200) through the auxiliary air outlet hole (410).

10. The ignition control method according to claim 8, characterized in that: Before the valve assembly (800) is switched to communicate with the auxiliary air outlet hole (410), the method further includes: A first reminder procedure is executed to prompt the user to start the ignition needle (200).

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