CN112178699B - Burner of gas stove, gas stove and ignition device of gas stove - Google Patents
Burner of gas stove, gas stove and ignition device of gas stove Download PDFInfo
- Publication number
- CN112178699B CN112178699B CN201910602147.0A CN201910602147A CN112178699B CN 112178699 B CN112178699 B CN 112178699B CN 201910602147 A CN201910602147 A CN 201910602147A CN 112178699 B CN112178699 B CN 112178699B
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- ignition
- burner
- flame
- needle
- ignition needle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/08—Arrangement or mounting of burners
- F24C3/085—Arrangement or mounting of burners on ranges
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/10—Arrangement or mounting of ignition devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/12—Arrangement or mounting of control or safety devices
- F24C3/126—Arrangement or mounting of control or safety devices on ranges
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Combustion (AREA)
Abstract
The embodiment of the invention relates to a burner of a gas stove, the gas stove and an ignition device of the gas stove. The burner (1) of the gas stove comprises a burner body (2), an ignition device (3) and a flame detection device (4), wherein the ignition device (3) comprises an ignition needle (10) with an ignition part (100), the ignition part (100) is used for igniting fuel gas, the ignition needle (10) is provided with a first position and a second position, and when the flame detection device (4) detects a flame signal of the burner body (2), the ignition needle (10) is positioned at the first position, and the ignition part (100) avoids flame; when the flame detection device (4) does not detect a flame signal of the burner body (2), the ignition needle (10) is located at the second position, and the ignition part (100) is suitable for igniting the burner body (2). The scheme can avoid the problem of carbon deposition at the top end of the ignition needle.
Description
[ field of technology ]
The invention relates to the field of gas stoves, in particular to a burner of a gas stove with an ignition needle, the gas stove comprising the burner and an ignition device of the gas stove.
[ background Art ]
Chinese patent No. CN102109179B discloses a gas burner ignition needle and gas burner using the ignition needle. The ignition needle (1, 1 ') comprises an electrode (3, 3') and a ceramic shell (2, 2 ') wrapped outside the electrode, and is characterized in that the ceramic shell (2, 2') is provided with an electrode ignition direction limiting part (4, 23 ') at the top of the ceramic shell to limit the ignition direction of the electrode (3, 3'), so that the ignition position and the ignition direction of the ignition needle can be realized according to specific design requirements, the ignition action can be executed more accurately, and the ignition efficiency is improved.
[ invention ]
It is an object of the present invention to provide an improved burner for a gas range, a gas range comprising the burner and an ignition device for a gas range.
Another object of the present invention is to provide a burner for a gas range that protects an ignition needle when the burner burns.
An embodiment of the invention relates to a burner of a gas stove, comprising a burner body, an ignition device and a flame detection device, wherein the ignition device comprises an ignition needle with an ignition part, the ignition part is used for igniting gas, the ignition needle is provided with a first position and a second position, when the flame detection device detects a flame signal of the burner body, the ignition needle is positioned at the first position, and the ignition part avoids flame; when the flame detection device does not detect the flame signal of the burner body, the ignition needle is positioned at the second position, and the ignition part is suitable for igniting the burner body.
The technical effect of the scheme is that when the flame detection device detects the flame signal of the burner body, namely the burner burns, the ignition needle is located at the first position, and the ignition part avoids the flame. Thus, the ignition needle can avoid the problem that the ignition part is difficult to ignite due to carbon deposition at the top end caused by long-term contact with flame. Simultaneously, the ignition part avoids flame, can vacate more spaces, the combustion space will increase, the secondary air flow area increases, promotes the more abundant burning of gas. When the flame detection position does not detect the flame signal of the burner body, namely the burner is normally turned off or unexpected flameout occurs, the ignition needle is positioned at the second position, namely the ignition position, so that preparation is made for re-ignition after the next normal ignition or unexpected flameout of the burner.
On the other hand, in the burner body with the flame transfer groove, the existence of the ignition needle is easy to interfere with the flame transfer flame so as to cause the contact with the yellow flame. The clear provision of a yellow flame in the household gas range standard GB16410 is not allowed, which also presents a certain difficulty for the design of the burner. By adopting the technical scheme, when the burner burns normally, the ignition needle moves to the first position to avoid flame, so that the ignition needle can avoid the problem of contacting with yellow flame caused by interference with flame.
The "the ignition needle is located at the first position, and the ignition portion is kept away from the flame" includes, but is not limited to, at least two cases: in one of these cases, when the ignition needle is in the first position, the ignition portion is moved away from the flame zone so that the flame does not burn to the ignition portion. Alternatively, when the ignition needle is in the first position, the ignition portion is positioned in a protective cover that shields the ignition portion from contact with the flame. The term "the ignition portion avoids the flame" is understood to mean that the ignition portion does not contact the flame, that is, the flame does not burn to the ignition portion.
The ignition needle in the scheme can be any igniter which can be used for igniting fuel gas, such as a high-voltage pulse ignition needle or a hot-face igniter. The ignition portion is, for example, an electrode head portion of an ignition needle for discharge.
The flame detection device in the foregoing embodiment may be any detection device such as a thermocouple or an ion flame detector that can be used to detect whether the flame of the burner body is burning or extinguishing.
In one or more embodiments, the ignition device further comprises a protective cover in which the ignition portion is located when the ignition needle is in the first position; when the ignition needle is positioned at the second position, the ignition part is exposed out of the protective cover.
The setting of safety cover on the one hand can help the ignition portion to avoid contacting the flame when the combustor body fires. For smaller or flat burners, it is not sufficient for the ignition portion to be able to avoid the flame itself in the first position, and the protective cover can cover the ignition portion from contact with the flame in the first position.
On the other hand, the ignition part is arranged in the protective cover, so that the ignition part can be protected, and the ignition needle is prevented from being collided or damaged in the cooking process, so that the service life of the ignition needle is prolonged.
In one or more embodiments, the ignition needle is resiliently movable up and down in its axial direction so as to reach the first position and the second position.
In one or more embodiments, the ignition device includes a ferromagnetic member fixed to the ignition needle, a spring, and an electromagnet, the spring being located between the ferromagnetic member and the electromagnet; the electromagnet generates magnetic attraction force on the ferromagnetic piece when being electrified, and the ferromagnetic piece drives the ignition needle to move to one of the first position and the second position; when the electromagnet is powered off, the magnetic attraction force of the electromagnet on the ferromagnetic piece disappears, and the ignition needle moves to the other of the first position and the second position under the action of the restoring force of the spring. Wherein the ferromagnetic member is a ferromagnetic metal member. The movement of the ignition needle can be realized through the electrifying and the outage of the electromagnet, and the control is simple. When the electromagnet is electrified, the ferromagnetic piece and the electromagnet attract each other to enable the ferromagnetic piece to drive the ignition needle to move, and at the moment, the spring is compressed; when the electromagnet is powered off, the ignition needle moves back to the original position under the action of the restoring force of the spring.
In one or more embodiments, the spring is sleeved on the ignition needle.
In one or more embodiments, the electromagnet is mounted on a mount that is secured to the burner body. Furthermore, the fixing seat can be used for fixing the ignition needle, so that the whole ignition device is assembled together, and the fixing seat is installed, so that the ignition device is installed in place.
In one or more embodiments, the ignition device comprises a limiting piece for limiting the ignition needle at the second position, the ignition needle comprises a flange matched with the limiting piece, and the limiting piece is fixed on the fixing seat at intervals, or is formed at the bottom of the protective cover. Therefore, the ignition position of the ignition needle is accurately limited by the limiting piece, and the distance between the ignition part and the burner body is ensured to be an effective ignition distance, so that successful ignition can be realized.
In one or more embodiments, when the flame detection device detects a flame signal of the burner body, the electromagnet is electrified to generate magnetic attraction force on the ferromagnetic piece, the ferromagnetic piece drives the ignition needle to move downwards to the first position, and the spring is compressed; when the flame detection device does not detect the flame signal of the burner body, the electromagnet is powered off, the magnetic attraction force on the ferromagnetic piece is eliminated, and the ignition needle moves upwards to the second position under the action of the restoring force of the spring. When the ignition needle moves down to the first position, space can be vacated for flame, so that the combustion space of the burner body is increased, the secondary air flow area is increased, more sufficient combustion of fuel gas is promoted, and the burnout rate of the fuel gas is improved. Moreover, the ignition needle moves down to a lower position of the burner, which itself is also an enhanced protection.
In one or more embodiments, the protective cover is directly or indirectly secured to the burner body and/or at least an inner wall of the protective cover is made of an insulating material.
In one or more embodiments, the protective cover is an annular cover with openings at the top and bottom. The ignition needle can thus pass through the protective cover, so that the ignition part can be exposed outside the protective cover or be located in the protective cover when the ignition needle is moved.
Still another embodiment of the present invention provides a gas cooker, which includes the burner of the gas cooker according to any one of the above embodiments.
In one or more embodiments, the gas stove includes a control device, the ignition device and the flame detection device are respectively connected with the control device, and the control device is used for controlling the ignition needle to be located at the first position or the second position according to whether the flame detection device detects a flame signal. When the flame is normally burnt after the burner is successfully ignited, the flame detection device detects a flame signal, and the control device transmits a corresponding instruction to the ignition device, so that the ignition needle moves to a first position, and the ignition part of the ignition needle is hidden in the protective cover after leaving the flame; when the burner is normally turned off or accidentally turned off, the flame detection device cannot detect a flame signal, the control device controls the ignition device to move the ignition needle to the second position, for example, through a program, and the ignition needle is at the ignition position at the moment, so that the ignition part is suitable for igniting the burner body and is ready for the next normal ignition.
In one or more embodiments, the ignition device is connected in series in a circuit in which the flame detection device is located. Taking a flame detection device as a thermocouple for example, when flame burns normally, the thermocouple generates an electromotive force, and current flows through a loop where the thermocouple is located, and the current enables the ignition device to maintain the ignition needle at the first position. When the flame is extinguished, the temperature of the thermocouple is lower and lower, the electromotive force in the loop is gradually reduced until the current in the loop can not enable the ignition device to maintain the ignition needle at the first position, and the ignition needle automatically returns to the second position.
Another aspect of the embodiments of the present invention relates to an ignition device for a gas cooker, comprising an ignition needle with an ignition portion for igniting gas, wherein the ignition needle has a first position and a second position in a use state of the gas cooker; when the ignition needle is positioned at the first position, the ignition part avoids flame when the gas stove burns; the ignition portion is adapted to ignite the gas range when the ignition needle is located at the second position.
The use state of the gas stove comprises a combustion state of the gas stove and a closing state of the gas stove. It is also understood that the gas range is in a use state of the gas range after being installed.
When the ignition needle is positioned at the second position, the ignition needle is positioned at the ignition position, and the ignition part can ignite the gas stove after the user gives an ignition instruction.
The ignition needle in the scheme can avoid flame when the gas stove burns, and the problem that the ignition part is difficult to ignite due to carbon deposition at the top end caused by long-term contact with flame is avoided. Simultaneously, the ignition part avoids flame, can vacate more spaces, the combustion space is increased, the secondary air flow area is increased, and the gas of the gas stove is promoted to be burnt more fully.
In one or more embodiments, the ignition device further comprises a protective cover in which the ignition portion is located when the ignition needle is in the first position; when the ignition needle is positioned at the second position, the ignition part is exposed out of the protective cover.
In one or more embodiments, the ignition device includes a ferromagnetic member fixed to the ignition needle, a spring mounted on the burner body, and an electromagnet between the ferromagnetic member and the electromagnet; the electromagnet generates magnetic attraction force on the ferromagnetic piece when being electrified, and the ferromagnetic piece drives the ignition needle to move to one of the first position and the second position; when the electromagnet is powered off, the magnetic attraction force of the electromagnet on the ferromagnetic piece disappears, and the ignition needle moves to the other of the first position and the second position under the action of the restoring force of the spring.
It should be noted that the features of the dependent claims may be combined with each other and with the features of the independent claims in any way without departing from the concept of the present invention.
[ description of the drawings ]
Fig. 1 is a perspective view of a burner of a gas range according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a burner of a gas range according to an embodiment of the present invention when an ignition pin is positioned at a first position;
FIG. 3 is a cross-sectional view of a burner of a gas range according to an embodiment of the present invention when an ignition pin is positioned at a second position;
fig. 4 is a perspective view of an ignition device according to a first embodiment of the present invention;
fig. 5 is a front view of the ignition device of the first embodiment of the present invention with the ignition needle in the first position;
fig. 6 is a front view of the ignition device of the first embodiment of the present invention with the ignition needle in the second position;
fig. 7 is a perspective view of an ignition device according to a second embodiment of the present invention;
fig. 8 is an enlarged partial cross-sectional view of an ignition device according to a second embodiment of the present invention.
Reference numerals:
1-a burner; 2-a burner body; 3-ignition means; 4-flame detection means; 10-ignition needle; 20-a fire cover base; 21-an inner ring fire cover; 22-an outer ring fire cover; 30-protecting cover; 30 A-A connection; 31-a ferromagnetic member; 32-a spring; 33-an electromagnet; 34-fixing seat; 35-limiting piece; 36-connecting ribs; a 100-ignition section; 101-an ignition electrode; 102-a ceramic housing; 110-flange; 200-a fire hole; 201-ignition holes.
[ detailed description ] of the invention
For a further understanding of the objects, construction, features, and functions of the invention, reference should be made to the following detailed description of the preferred embodiments.
Referring to fig. 1 to 3, fig. 1 is a perspective view illustrating a burner of a gas stove according to an embodiment of the present invention; FIG. 2 is a cross-sectional view of a burner of a gas range according to an embodiment of the present invention when an ignition pin is positioned at a first position; fig. 3 is a cross-sectional view of a burner of a gas range according to an embodiment of the present invention when an ignition pin is positioned at a second position.
The burner 1 of the gas range of the present embodiment includes a burner body 2, an ignition device 3, and a flame detection device 4.
The burner body 2 includes a fire cover base 20, and an inner ring fire cover 21 and an outer ring fire cover 22 on the fire cover base 20. The outer ring fire cover 22 is provided around the outer periphery of the inner ring fire cover 21. The inner ring fire cover 21 and the outer ring fire cover 22 are respectively provided with a plurality of fire outlet holes 200 for the fuel gas to flow out, and the fuel gas flowing out of the fire outlet holes 200 is ignited to form flames.
The ignition device 3 comprises an ignition needle 10 with an ignition portion 100, the ignition portion 100 being used for igniting the fuel gas.
The ignition needle 10 of the present embodiment is a high-voltage pulse ignition needle, and as shown in fig. 2, it includes an ignition electrode 101 and a ceramic housing 102 that is wrapped around the ignition electrode 101, and the top of the ignition electrode 101 is exposed outside the ceramic housing 102 to form an ignition portion 100. At the time of ignition, the ignition portion 100 generates an instantaneous high potential, and breaks down the air between metals in the vicinity of the ignition hole 201 in the burner body 2 to form an electric spark, thereby igniting the gas ejected from the ignition hole 201.
The flame detection device 4 of the present embodiment is a thermocouple. The thermocouple and a solenoid valve (not shown) are connected in series to form a circuit for flameout protection. When the flame generated by the burner body 2 burns to the thermocouple, the thermocouple generates induced electromotive force, so that the opening of the electromagnetic valve can be maintained. When the flame of the burner body 2 is extinguished, the electromotive force of the thermocouple is rapidly reduced, and the solenoid valve cannot be maintained open, so that the solenoid valve closes the fuel gas.
The ignition needle 10 of the present embodiment has a first position and a second position. When the flame detection device 4 detects the flame signal of the burner body 2, the ignition needle 10 is located at the first position, the ignition portion 100 is kept away from the flame, and as shown in fig. 2, the ignition portion 100 is much lower than the ignition hole 201 and the flame outlet hole 200, and therefore, the flame burnt by the flame outlet hole 200 and the ignition hole 201 does not contact the ignition portion 100. When the flame detection means 4 does not detect a flame signal of the burner body 2, the ignition needle 10 is in the second position and the ignition portion 100 is adapted to ignite the burner body 2. As shown in fig. 3, at this time, the ignition needle 10 is positioned at the ignition position, and the ignition portion 100 is aligned with the ignition hole 201, so that the ignition portion 100 is adapted to ignite the burner body 2, ready for ignition.
In addition, the ignition device 3 of the embodiment shown in fig. 1 further includes a protection cover 30, and when the ignition needle 10 is located at the first position, the ignition portion 100 is located in the protection cover 30, so that the ignition portion 100 is further protected from the ignition of the flame completely. When the ignition needle 10 is in the second position, the ignition portion 100 is exposed outside the protection cover 30, so that the ignition portion 100 is adapted to ignite the burner body 2.
In the embodiment shown in fig. 1, the protective cover 30 is fixed to the fire cover base 20 by a connecting portion 30 a. The protective cover 30 is an annular cover which is opened up and down.
The protective cover 30 and the fire cover base 20 of the present embodiment are integrally formed, and the protective cover 30 is made of aluminum or copper, which is the same material as the fire cover base 20. The inner wall surface of the protective cap 30 is coated with an insulating layer such as a ceramic polymer insulating coating or the like to prevent the ignition needle 10 from being erroneously operated to discharge toward the protective cap in the first position.
The ignition device of the first embodiment will be described in detail below with reference to the accompanying drawings. Referring to fig. 4 to 6, fig. 4 is a perspective view of an ignition device according to a first embodiment of the present invention; fig. 5 is a front view of the ignition device of the first embodiment of the present invention with the ignition needle in the first position; fig. 6 is a front view of the ignition device of the first embodiment of the present invention when the ignition needle is in the second position.
The ignition needle 10 of the present embodiment is elastically movable up and down in the axial direction thereof so as to be able to reach the first position and the second position.
The ignition device 3 of the present embodiment further includes a ferromagnetic member 31, a spring 32, and an electromagnet 33. The ferromagnetic member 31 may be made of a ferromagnetic metal material. The ferromagnetic member 31 of the present embodiment is a member made of iron. The ferromagnetic member 31 is fixed on the ignition needle 10, and the spring 32 is sleeved on the ignition needle 10 and is positioned between the ferromagnetic member 31 and the electromagnet 33.
The electromagnet 33 is mounted on a fixing seat 34, and the fixing seat 34 is fixed on the burner body 2.
The ignition device 2 further comprises a stop 35 for limiting the ignition needle 10 in the second position. The limiting piece 35 is fixed on the fixing seat 34 at intervals through two connecting ribs 36. The ignition needle 10 includes a flange 110 for cooperating with the stop 35 to limit the ignition needle 10 to the second position.
As shown in fig. 5, when the flame detecting device 4 detects the flame signal of the burner body 2, the electromagnet 33 is energized to generate magnetic attraction force on the ferromagnetic member 31, the ferromagnetic member 31 drives the ignition needle 10 to move downward to the first position, and the spring 32 is compressed. Since the ignition needle 10 moves down a certain distance at this time, the ignition portion 100 is much lower than the flame to avoid the flame. As shown in fig. 6, when the flame signal of the burner body 2 is not detected by the flame detection device 4, the electromagnet 33 is powered off and the magnetic attraction force to the ferromagnetic member 31 is eliminated, the ignition needle 10 moves upward under the restoring force of the spring 32 until the flange 110 abuts against the stopper 35, so that the ignition needle 10 is located at the second position, and at this time, the ignition portion 100 just faces the ignition hole 201, so as to be suitable for igniting the burner body 2.
The ignition device 3 of the present embodiment is connected in series in the circuit in which the flame detection device 4 is located in the use state. Thus, when the flame detecting device 4 detects the flame signal of the burner body 2, the flame detecting device 4, i.e. the thermocouple, generates an electromotive force, the current flows through the circuit in which the flame detecting device 4 is located, the electromagnet 33 is energized to generate a magnetic attraction force on the ferromagnetic member 31, the ferromagnetic member 31 drives the ignition needle 10 to move downward to the first position, and the spring 32 is compressed. When the flame is extinguished, the temperature of the thermocouple is lower and lower, and the electromotive force in the loop is gradually reduced until the current in the loop makes the electromagnet 33 unable to maintain the ignition needle 10 at the first position against the magnetic attraction of the ferromagnetic member 31, and the ignition needle 10 automatically moves up under the restoring force of the spring 32 and returns to the second position under the limit of the limit member 35.
The same or similar structures as those of the ignition device of the first embodiment in the embodiment shown in fig. 2 and fig. 3 are denoted by the same reference numerals, and the functions and actions thereof are the same, and are not described again here.
Next, an ignition device according to a second embodiment of the present invention will be described. Referring to fig. 7 and 8, fig. 7 is a perspective view of an ignition device according to a second embodiment of the present invention; fig. 8 is an enlarged partial cross-sectional view of an ignition device according to a second embodiment of the present invention.
The same or similar structures of the ignition device in the second embodiment are denoted by the same reference numerals, and the functions thereof are the same or similar, and are not described herein again, please refer to the previous description. Unlike the first embodiment, the stopper 35 of the present embodiment is formed at the bottom of the protection cover 30. The boot 30 has openings at the top and bottom, but the opening at the bottom is smaller than the opening at the top. The rim of the opening in the bottom of the protective cover 30 forms a stop 35. The ignition needle 10 moves up until the flange 110 of the ignition needle 10 abuts against the stopper 35 by the restoring force of the spring 32, thereby restricting the ignition needle 10 to the second position.
Of course, the protective cover 30 of the present embodiment is to be fixed, but is not shown in fig. 7 and 8. In practice, the protective cover 30 may be fixed to the fire cover base 20 or to the bottom case of the gas stove. The protective cover 30 of the present embodiment is made of ceramic.
Further embodiments of the present invention relate to a gas cooker comprising the burner 1 of the gas cooker of any of the above embodiments.
In one embodiment, the gas stove further comprises a control device, wherein the ignition device 3 and the flame detection device 4 are respectively connected with the control device, and the control device is used for controlling the ignition needle 10 to be positioned at the first position or the second position according to whether the flame detection device 4 detects a flame signal. The control device is preset with a related program, and the ignition needle 10 is controlled to be positioned at the first position when the flame detection device 4 detects the flame signal of the burner body 2 through program control; when the flame detection means 4 does not detect a flame signal of the burner body 2, the ignition needle 10 is controlled to be located at the second position.
Still further embodiments of the present invention provide an ignition device 3 for a gas range, which includes an ignition needle 10 with an ignition portion 100, the ignition portion 100 for igniting gas. The ignition needle 10 has a first position and a second position in a use state of the gas range. When the ignition needle 10 is located at the first position, the ignition portion 100 avoids flame when the gas range is burned. The ignition portion 100 is adapted to ignite the gas range when the ignition needle 10 is in the second position.
In one embodiment, the ignition device 3 further comprises a protective cover 30, and the ignition portion 100 is located in the protective cover 30 when the ignition needle 10 is located in the first position; when the ignition needle 10 is in the second position, the ignition portion 100 is exposed outside the protection cover 30.
The ignition device 3 comprises a ferromagnetic piece 31, a spring 32 and an electromagnet 33, wherein the ferromagnetic piece 31 is fixed on the ignition needle 10, and the spring 32 is sleeved on the ignition needle 10 and is positioned between the ferromagnetic piece 31 and the electromagnet 33.
The electromagnet 33 generates a magnetic attraction force on the ferromagnetic member 31 when energized, and the ferromagnetic member 31 drives the ignition needle 10 to move to one of the first position and the second position. The magnetic attraction force of the electromagnet 33 to the ferromagnetic member 31 disappears when the power is turned off, and the ignition needle 10 moves to the other of the first position and the second position by the restoring force of the spring 32.
The various embodiments of the individual components described in connection with fig. 1-8 may be combined with each other in any given manner to achieve the advantages of the present invention.
The invention has been described with respect to the above-described embodiments, however, the above-described embodiments are merely examples of practicing the invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Claims (12)
1. Burner (1) for a gas range, comprising a burner body (2), an ignition device (3) and a flame detection device (4), the ignition device (3) comprising an ignition needle (10) with an ignition portion (100), the ignition portion (100) being intended to ignite a gas, characterized in that,
the ignition needle (10) has a first position and a second position,
when the flame detection device (4) detects a flame signal of the burner body (2), the ignition needle (10) is positioned at the first position, and the ignition part (100) avoids flame;
when the flame detection device (4) does not detect a flame signal of the burner body (2), the ignition needle (10) is located at the second position, and the ignition part (100) is suitable for igniting the burner body (2).
2. Burner (1) for gas ranges according to claim 1, characterized in that said ignition means (3) further comprise a protective cover (30),
when the ignition needle (10) is positioned at the first position, the ignition part (100) is positioned in the protective cover (30);
when the ignition needle (10) is positioned at the second position, the ignition part (100) is exposed out of the protective cover (30).
3. Burner (1) of a gas range according to claim 1, characterized in that said ignition needle (10) is elastically movable up and down along its axial direction (A-A) in order to reach said first position and said second position.
4. Burner (1) of a gas range according to claim 2, characterized in that said ignition device (3) comprises a ferromagnetic piece (31), a spring (32) and an electromagnet (33), said ferromagnetic piece (31) being fixed to said ignition needle (10), said spring (32) being located between said ferromagnetic piece (31) and said electromagnet (33);
the electromagnet (33) generates magnetic attraction force on the ferromagnetic piece (31) when being electrified, and the ferromagnetic piece (31) drives the ignition needle (10) to move to one of the first position and the second position; the electromagnet (33) loses magnetic attraction to the ferromagnetic member (31) when the electromagnet is deenergized, and the ignition needle (10) moves to the other of the first position and the second position by the restoring force of the spring (32).
5. Burner (1) for gas ranges according to claim 4, wherein said electromagnet (33) is mounted on a fixed seat (34), said fixed seat (34) being fixed to said burner body (2).
6. Burner (1) according to claim 5, wherein said ignition device (3) comprises a stop (35) for limiting said ignition needle (10) in said second position, said ignition needle (10) comprising a flange (110) cooperating with said stop (35), said stop (35) being fixed at intervals on said fixed seat (34) or said stop (35) being formed at the bottom of said protective cover (30).
7. Burner (1) for gas cookers, as claimed in claim 4, characterized in that,
when the flame detection device (4) detects a flame signal of the burner body (2), the electromagnet (33) is electrified to generate magnetic attraction force on the ferromagnetic piece (31), the ferromagnetic piece (31) drives the ignition needle (10) to move downwards to the first position, and the spring (32) is compressed;
when the flame detection device (4) does not detect the flame signal of the burner body (2), the electromagnet (33) is powered off and the magnetic attraction force on the ferromagnetic piece (31) disappears, and the ignition needle (10) moves upwards to the second position under the action of the restoring force of the spring (32).
8. Burner (1) of a gas range according to claim 2, characterized in that the protective cover (30) is directly or indirectly fixed to the burner body (2) and/or at least the inner wall of the protective cover (30) is made of an insulating material.
9. Burner (1) of a gas range according to claim 2, characterized in that the protective cover (30) is an annular cover with openings (301, 302) at the top and bottom.
10. A gas stove, characterized by comprising a burner (1) of a gas stove according to any one of claims 1-9.
11. A gas stove according to claim 10, characterized in that it comprises control means, said ignition means (3) and said flame detection means (4) being connected to said control means, respectively, said control means being adapted to control said ignition needle (10) to be in said first position or said second position depending on whether said flame detection means (4) detects a flame signal.
12. A gas cooker according to claim 10, characterized in that the ignition device (3) is connected in series in the circuit in which the flame detection device (4) is located.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910602147.0A CN112178699B (en) | 2019-07-05 | 2019-07-05 | Burner of gas stove, gas stove and ignition device of gas stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910602147.0A CN112178699B (en) | 2019-07-05 | 2019-07-05 | Burner of gas stove, gas stove and ignition device of gas stove |
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| Publication Number | Publication Date |
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| CN113048518A (en) * | 2021-03-31 | 2021-06-29 | 蓝山县鸿坤金属制品有限公司 | Ignition device of gas stove |
| CN114508858A (en) * | 2022-02-22 | 2022-05-17 | 杭州老板电器股份有限公司 | Ignition needle assembly, gas water heater and control method of gas water heater |
| CN116857680B (en) * | 2023-07-19 | 2024-04-26 | 浙江意米特电器有限公司 | Gas stove, burner and ignition device thereof |
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| CH240540A (en) * | 1944-08-02 | 1945-12-31 | Faeh Josef | Device on gas burners for electrical ignition of the gas flowing out of the burner when the burner is started up. |
| CN86202223U (en) * | 1986-04-08 | 1987-02-25 | 伍尚魁 | Piezoelectric ceramic automatic igniter for gas stove |
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| CN207893802U (en) * | 2017-12-28 | 2018-09-21 | 浙江苏泊尔家电制造有限公司 | Igniting needle assemblies, burner and gas-cooker |
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| CN112178699A (en) | 2021-01-05 |
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