CN110671722A

CN110671722A - Gas stove and ignition device thereof

Info

Publication number: CN110671722A
Application number: CN201810720675.1A
Authority: CN
Inventors: 施必德; 苗伟伟; 吴金花
Original assignee: BSH Electrical Appliances Jiangsu Co Ltd; BSH Home Appliances Co Ltd
Current assignee: BSH Electrical Appliances Jiangsu Co Ltd; BSH Home Appliances Co Ltd
Priority date: 2018-07-03
Filing date: 2018-07-03
Publication date: 2020-01-10
Anticipated expiration: 2038-07-03
Also published as: CN110671722B

Abstract

The invention relates to a gas stove and an ignition device of the gas stove. The gas stove (1) comprises a burner (2), the burner (2) is used for heating a pot (300) placed above the burner, and the pot (300) is made of metal; an ignition needle (10) is arranged near the burner (2) and used for igniting fuel gas sprayed out of the burner (2), the pot (300) serves as a receiving end when the ignition needle (10) discharges, and electric sparks or continuous electric arcs are generated between the ignition needle (10) and the pot (300) during ignition. The technical scheme of the invention provides the gas stove with a brand-new ignition mode, and the use safety of the gas stove can be improved.

Description

Gas stove and ignition device thereof

[ technical field ] A method for producing a semiconductor device

The invention relates to the field of gas cookers, in particular to a gas cooker and an ignition device of the gas cooker.

[ background of the invention ]

The ignition scheme related to the gas stove is that an ignition needle is ignited towards a combustor, the combustor is used as a grounding end, and when the ignition is carried out, electric sparks are generated between the ignition needle and the combustor to ignite gas flowing out of the combustor. In yet another ignition scheme, a grounded electrode, such as a metal post or thermocouple, is provided on the burner adjacent to the ignition pin, which discharges toward the grounded electrode to produce an electrical spark between the ignition pin and the ground electrode to ignite the gas.

[ summary of the invention ]

An object of the present invention is to provide a gas range with a new ignition method, which solves at least one of the above technical problems.

Another object of the present invention is to provide an ignition device for a gas range with a new ignition method, which solves at least one of the above problems.

In order to achieve at least one of the above technical objects, the present invention proposes a technical solution, for example, as follows: a gas stove comprises a burner, wherein the burner is used for heating a pot placed above the burner, and the pot is made of metal; an ignition needle is arranged near the burner and used for igniting gas sprayed out of the burner, wherein the pot is used as a receiving end of the ignition needle during discharging, and electric sparks or continuous electric arcs are generated between the ignition needle and the pot during ignition.

Only after the pan is placed above the burner, the ignition can be successfully carried out, and therefore the technical scheme provides the gas stove with a brand-new ignition mode, and the use safety of the gas stove can be improved. The existing related ignition scheme is that flame can be ignited no matter whether a pot is placed above a burner or not, a user risks being injured by electric sparks or electric arcs when the flame is ignited, and the flame on the exposed burner is easier to ignite other objects or burn the user. The above-described aspects of the invention may reduce the risk of an electric spark or arc injuring the user at the time of ignition compared to these related ignition schemes.

Above-mentioned technical scheme can play the effect of child lock, can cooperate the current child lock scheme of gas-cooker, plays double-deck guard action, has strengthened the child lock function of gas-cooker, prevents that children from opening the gas-cooker at will. After the user finishes cooking each time, the cooker is taken away from the gas stove and is stored in a position which cannot be touched by children, so that the gas stove is not ignited, and the use safety of the gas stove is further enhanced.

Because above-mentioned technical scheme is when the pan is not placed the combustor top, can't ignite the gas, also can not be in the continued consumption gas of not placing the condition of pan, it is thus clear that above-mentioned scheme can save the gas to a certain extent. Only after the pot is placed above the burner, the pot can be ignited, and the heat generated by the flame after the gas is ignited is completely used for heating the pot, so that the energy waste is not caused.

In addition, when the ignition needle with what produce between the pan is continuous electric arc, when the ignition, several electric arcs discharge to the pan, and the outward appearance is dazzled cool, provides a unique experience.

In a possible embodiment of the present invention, when the pot is placed above the burner, the pot is grounded, and the pot serves as a ground terminal for discharging the ignition needle.

To achieve the discharge of the ignition needle, the voltage at the discharge end is higher than the voltage at the receiving end, and a voltage difference is generated between the two ends, so that the discharge is achieved between the two end points. The receiving end may be grounded or negatively grounded. When the gas stove of the scheme is used for cooking, the cooker is grounded. Because the pan is supported on the pan frame, the pan is in direct contact with the pan frame, and if the panel of the gas stove is made of metal, the pan frame contacts the panel, and the panel contacts the bottom shell. If the panel is made of glass, the pot frame contacts with a liquid containing disc made of metal, and the liquid containing disc contacts with a burner base arranged on the bottom shell and further contacts with the bottom shell. The existing igniter generally leads out a wire to be fixed on a bottom shell, and the grounding design is realized. Therefore, the cooker is indirectly connected with the bottom shell, so that a complete ignition loop is formed. Therefore, the scheme utilizes the existing structural design to achieve the purpose of striking fire to the cookware, and the electric spark and the electric arc are sufficient in energy due to sufficient discharge. Meanwhile, the gas stove does not need to be changed too much.

In one possible embodiment of the present invention, the ignition needle includes an ignition electrode and an insulating housing wrapped around the ignition electrode, and the ignition electrode includes a discharge end exposed outside the housing.

In one possible embodiment of the present invention, the discharge end extends vertically upward. This is based on the gas burner being mounted in a horizontal plane, i.e. the gas burner panel is parallel to the horizontal plane. If the mounting plane of the burner is not a horizontal plane, the discharge end extends upwards perpendicularly to the mounting plane of the burner, respectively. Thereby, guarantee that discharge end discharges towards the pan, reduce the probability of discharging to the combustor that is located discharge end side.

In one possible embodiment of the invention, the discharge end protrudes above the top of the burner. With the arrangement, no metal part forming the burner is arranged around the discharge end, so that the probability of the discharge end striking fire towards the cookware is improved.

In one possible embodiment of the present invention, an insulating shielding portion is provided at a tip of the ignition needle in a direction toward the burner. Thus, the shield portion prevents the possibility of the discharge end striking sparks toward the burner.

In a possible embodiment of the present invention, in a use state of the gas stove, a distance between the discharge end and an outer surface of the bottom of the pot is 2mm to 7 mm. After the ignition electrode is electrified, instantaneous high potential is generated at the ignition end to break down the air between the metal closest to the ignition end, namely the receiving end, so that electric sparks or electric arcs are formed. The definition of the present solution may increase the possibility of the discharge end of the ignition electrode discharging towards the pot, considering the distance between the discharge end of the ignition needle and the burner.

In one possible embodiment of the present invention, the burner is provided with an ignition hole corresponding to each ignition needle, the ignition hole includes an outlet section, and at least the extension direction of the outlet section of the ignition hole is vertically upward or obliquely upward. This is based on the gas burner being mounted in a horizontal plane, i.e. the gas burner panel is parallel to the horizontal plane, similarly to what has been described above. If the mounting plane of the gas burner is not a horizontal plane, then correspondingly, at least the outlet section of the ignition hole extends upwards or obliquely upwards perpendicular to the mounting plane of the gas burner. Because the discharge end discharges towards the upper cooker, the scheme can ensure that the gas flow which is vertically upwards or obliquely upwards sprayed from the ignition hole is sprayed to the area where the electric spark or the electric arc is located, the probability of meeting the electric spark and the electric arc is higher, the ignition is easy to occur, and the ignition success rate is improved.

In a possible embodiment of the invention, the burner is formed with a notch at the ignition hole, the notch being arranged such that the gas flow of the combustion gases is not blocked in the direction of extension of the outlet section.

In a possible implementation manner of the present invention, the burner includes an inner ring fire cover and an outer ring fire cover surrounding the outer periphery of the inner ring fire cover, and at least one ignition needle is respectively disposed at the inner ring fire cover and the outer ring fire cover. Therefore, the ignition success rate of the combustor is improved, the inner ring fire cover and the outer ring fire cover are ignited through at least one ignition needle respectively, and flame is instantly distributed on the whole combustor. However, in the related art, one of the inner ring fire cover or the outer ring fire cover is ignited, and then the flame is transmitted to the other of the inner ring fire cover or the outer ring fire cover through the flame transfer structure, so that the whole burner is covered, and the time for the flame to be covered in the burner is longer.

In a possible embodiment of the invention, the gas stove comprises six ignition needles, three ignition needles are distributed at the inner ring fire cover, and the distance between any two adjacent ignition needles is the same; three ignition needles are distributed at the outer ring fire cover, and the distance between any two adjacent ignition needles is the same.

Based on the purpose of the invention, the invention also provides an ignition device of a gas stove, which comprises an ignition needle and a pot placed above the burner in the using state of the gas stove, wherein the pot is made of metal, the pot is used as a receiving end when the ignition needle discharges, and electric sparks or continuous electric arcs are generated between the ignition needle and the pot when ignition is carried out.

In one possible embodiment of the present invention, the ignition needle includes an ignition electrode and an insulating housing wrapped around the ignition electrode, and the ignition electrode includes a discharge end exposed outside the housing; the pan is placed when the combustor top, the pan is ground connection, the pan is regarded as discharge end earthing terminal when discharging.

[ description of the drawings ]

Fig. 1 is a partial perspective view of a gas range according to an embodiment of the present invention;

fig. 2 is a partial front view of a gas range according to an embodiment of the present invention;

fig. 3 is a partial sectional view of a gas range according to an embodiment of the present invention.

Reference numerals:

1-gas range; 2-a burner; 3-pot rack; 4-a panel; 5-a bottom shell; 10-an ignition needle; 11-a housing; 21-inner ring fire cover; 22-outer ring fire cover; 100-a discharge end; 200-fire holes; 201-gap; 210, 220-ignition hole; 300-a pot.

[ detailed description ] embodiments

In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.

Referring to fig. 1 to 3, fig. 1 is a partial perspective view of a gas stove according to an embodiment of the present invention; fig. 2 is a partial front view of a gas range according to an embodiment of the present invention; fig. 3 is a partial sectional view of a gas range according to an embodiment of the present invention.

The gas stove 1 comprises a burner 2 for heating a pot 300 placed above, wherein the pot 300 is made of metal; an ignition needle 10 is provided near the burner 2 for igniting the gas ejected from the burner 2. The pot 300 serves as a receiving end for the ignition needle 10 during discharging, and an electric spark or a continuous electric arc is generated between the ignition needle 10 and the pot 300 during ignition.

Specifically, the gas stove 1 comprises a bottom shell 5 and a panel 4 covering the bottom shell 5, the burner 2 protrudes above the panel 4, and a pot holder 3 is arranged on the periphery of the burner 2. The pot holder 3 is used to support the pot 300.

When the pot 300 is placed over the burner 2, the pot 300 is grounded, and the pot 300 serves as a ground terminal when the ignition needle 10 is discharged.

Specifically, the ignition needle 10 includes an ignition electrode and an insulating housing 11 wrapped around the ignition electrode, and the housing 11 of this embodiment is a ceramic housing. The ignition electrode includes a discharge end 100 exposed outside the housing 11. The discharge end 100 protrudes above the top of the burner 2, and the discharge end 100 extends vertically upward.

The burner 2 of the present embodiment includes an inner fire cover 21 and an outer fire cover 22 surrounding the outer periphery of the inner fire cover 21. The inner ring fire cover 21 and the outer ring fire cover 22 are respectively provided with a plurality of fire outlets 200, and the gas sprayed from the fire outlets 200 is ignited to form flame to heat the pot 300.

At least one ignition needle 10 is respectively arranged at the inner ring fire cover 21 and the outer ring fire cover 22. Specifically, in the embodiment, the gas stove 1 comprises six ignition needles 10, three ignition needles 10 are distributed at the inner ring fire cover 21, and the distance between any two adjacent ignition needles 10 is the same; three ignition needles 10 are distributed on the outer ring fire cover 22, and the distance between any two adjacent ignition needles 10 is the same.

The burner 2 is provided with ignition holes corresponding to each ignition needle 10, as shown in fig. 3, the inner ring fire cover 21 is provided with ignition holes 210, the outer ring fire cover 22 is provided with ignition holes 220, and the extension directions of the ignition holes 210 and 220 are inclined upward. The burner 2 is formed with notches 201 at the ignition holes 210, 220, respectively, and the notches 201 are arranged such that the gas flow of the gas is not blocked in the extending direction of the ignition holes. As shown in fig. 3, if the notch 201 is not provided, the gas flow ejected from the ignition holes 210 and 210 is blocked by the edges of the inner ring fire cover and the outer ring fire cover, so that a large amount of gas flow cannot reach the region where the electric spark or the electric arc is generated.

In the use state of the gas range 1 of the present embodiment, the distance between the discharge end 100 and the outer surface of the bottom of the pot 300 is 4mm to 5 mm. In fact, it is feasible that the distance between the discharge end 100 and the outer surface of the bottom of the pot 300 is 2mm to 7mm, and the discharge end can smoothly catch fire.

Therefore, the embodiment provides the gas stove, a brand new ignition mode is adopted, the safety of the gas stove is improved, and gas can be saved.

In addition to the above embodiments, the present invention may be modified and altered to provide further embodiments, for example, the top of the ignition needle 10 is provided with an insulating shielding portion facing the burner 2 to define the ignition direction of the ignition needle and prevent the ignition needle from igniting the burner. For another example, the pore passage of the ignition hole does not extend along a straight line, and the ignition hole includes the outlet section, so that at least the outlet section of the ignition hole extends vertically upward or obliquely upward. Also for example, the burner includes only one ignition needle, provided at the inner ring fire cover 21.

In another embodiment of the present invention, there is provided an ignition device of a gas range 1, the ignition device comprising an ignition needle 10 and a pot 300 placed above a burner 2 in a use state of the gas range 1, the pot 300 being made of metal, the pot 300 serving as a receiving end for discharging the ignition needle 10, and an electric spark or a continuous electric arc being generated between the ignition needle 10 and the pot 300 at the time of ignition.

The ignition needle 10 comprises an ignition electrode and an insulating shell 11 wrapped outside the ignition electrode, wherein the ignition electrode comprises a discharge end 100 exposed outside the shell 11; when the pot 300 is placed above the burner 2, the pot 300 is grounded, and the pot 300 serves as a grounding terminal for the discharging terminal 100 to discharge electricity.

The various embodiments of the individual components described in connection with fig. 1 to 3 may be combined with each other in any given way to achieve the advantages of the invention.

The present invention has been described in relation to the above embodiments, which are only exemplary of the implementation of the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. Rather, it is intended that all such modifications and variations be included within the spirit and scope of this invention.

Claims

1. A gas stove (1) comprises a burner (2), wherein the burner (2) is used for heating a pot (300) placed above the burner, and the pot (300) is made of metal; an ignition needle (10) is arranged near the burner (2) and is used for igniting the gas sprayed by the burner (2),

the pot (300) is used as a receiving end when the ignition needle (10) discharges, and electric sparks or continuous electric arcs are generated between the ignition needle (10) and the pot (300) during ignition.

2. The gas range (1) of claim 1, wherein when the pot (300) is placed over the burner (2), the pot (300) is grounded, and the pot (300) serves as a ground terminal when the ignition needle (10) is discharged.

3. A gas range (1) as claimed in claim 1 or 2, wherein the ignition needle (10) comprises an ignition electrode and an insulating case (11) wrapping the ignition electrode, and the ignition electrode comprises a discharge end (100) exposed outside the case (11).

4. A gas burner (1) according to claim 3, characterized in that the discharge end (100) extends vertically upwards.

5. A gas burner (1) according to claim 3, characterized in that the discharge end (100) protrudes above the top of the burner (2).

6. A gas range (1) as in claim 3, characterized by the ignition needle (10) having its tip provided with an insulating shielding towards the burner (2).

7. A gas burner (1) according to claim 3, characterized in that in the use state of the gas burner (1), the distance between the discharge end (100) and the outer surface of the bottom of the pot (300) is 2-7 mm.

8. Gas burner (1) according to claim 1 or 2, characterized in that the burner (2) is provided with a lighting hole (210, 220) for each lighting needle (10), the lighting hole (210, 220) comprising an outlet section, at least the outlet section of the lighting hole (210, 220) extending in a vertical or obliquely upward direction.

9. Gas burner (1) according to claim 8, characterized in that the burner (2) is formed with a notch (201) at the ignition hole (210, 220), the notch (201) being arranged such that the gas flow of the gas is unobstructed in the direction of extension of the outlet section.

10. The gas range (1) according to claim 1, wherein the burner (2) comprises an inner fire cover (21) and an outer fire cover (22) surrounding the outer periphery of the inner fire cover (21), and at least one ignition needle (10) is arranged at each of the inner fire cover (21) and the outer fire cover (22).

11. The gas stove (1) according to claim 10, characterized by comprising six ignition needles (10), wherein three ignition needles (10) are distributed on the inner ring fire cover (21), and the distance between any two adjacent ignition needles (10) is the same; three ignition needles (10) are distributed at the outer ring fire cover (22), and the distance between any two adjacent ignition needles (10) is the same.

12. An ignition device of a gas stove (1) comprises an ignition needle (10) and a cooker (300) which is placed above a burner (2) in the using state of the gas stove (1), wherein the cooker (300) is made of metal, and is characterized in that,

13. The ignition device of a gas range (1) according to claim 12, wherein the ignition needle (10) comprises an ignition electrode and an insulating case (11) wrapped outside the ignition electrode, the ignition electrode comprising a discharge end (100) exposed outside the case (11); when pan (300) were placed combustor (2) top, pan (300) were ground connection, pan (300) conduct earthing terminal when discharging end (100).