CN110762560A

CN110762560A - Gas stove

Info

Publication number: CN110762560A
Application number: CN201911036534.9A
Authority: CN
Inventors: 杨杰; 陈迪龙; 郑军妹
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2019-10-28
Filing date: 2019-10-28
Publication date: 2020-02-07

Abstract

A gas cooker comprises a panel (1), a burner (2) provided with an ignition hole (21), a first ignition component (3) and a second ignition component (4); the burner (2) can be movably arranged on the panel up and down; the second ignition assembly (4) comprises a second insulating sleeve (41) and a second ignition needle (42) which are vertically arranged on the combustor, the upper end of the second ignition needle (42) is exposed to the second insulating sleeve (41) and is opposite to an ignition hole (21) on the combustor, and the lower end of the second ignition needle is arranged towards the first ignition assembly (3); first ignition subassembly (3) correspond second ignition subassembly (4) and set up on the panel, and it is including vertical first insulating bush (31) and first ignition needle (32) of setting on the panel, and the lower tip of first ignition needle (32) is connected and is lighted the power, and the upper end can be with the lower extreme looks electrical contact of second ignition needle (42). The combustor movable mounting also can realize the fast and stable ignition on the panel in this application.

Description

Gas stove

Technical Field

The invention belongs to the technical field of cookers, and particularly relates to a gas cooker.

Background

The kitchen range is a kitchen utensil commonly used in families and mostly comprises a panel and a burner arranged on the panel. The ignition structure on the combustor is generally pulse electronic ignition mostly, and a small part adopts piezoelectric ceramic ignition and the like. For example, patent application of invention with application number of cn201711230482.x, a gas stove ignition needle and a burner provided with the ignition needle (application publication number of CN109838816A), discloses a gas stove ignition needle, which is arranged in an annular channel between an inner ring fire cover and an outer ring fire cover of the burner. For another example, patent application CN201710917101.9, entitled "an ignition needle and a gas burner using the same" (application publication No. CN109595587A), discloses an ignition needle disposed on a side wall of an inner ring fire cover of a burner.

The combustor among the prior art is many fixed mounting on the panel, and ignition needle snap-on is on the combustor, and the one end of ignition needle is connected the ignition power, through to combustor fire lid discharge and realize the ignition. Although the burner with the structure can realize stable ignition, the ignition mode is single, the burner is required to be fixedly arranged on the panel, and the burner is not suitable for burners with movable positions.

Disclosure of Invention

The first technical problem to be solved by the invention is to provide a gas cooker which can realize quick and stable ignition even if a burner is movably arranged on a panel, aiming at the current situation of the prior art.

The second technical problem to be solved by the present invention is to provide a gas cooker which can move after the burner is ignited, so as to improve the thermal efficiency, aiming at the current situation of the prior art.

The technical scheme adopted by the invention for solving the first technical problem is as follows: a gas cooker comprises a panel and a burner with an ignition hole; the method is characterized in that:

the burner can be movably arranged on the panel up and down;

the burner is provided with a second ignition assembly, the second ignition assembly comprises a second insulating sleeve vertically arranged on the burner and a second ignition needle penetrating into the second insulating sleeve, and the upper end of the second ignition needle is exposed in the second insulating sleeve and is opposite to an ignition hole in the burner;

the panel is provided with a first ignition component corresponding to the second ignition component, the first ignition component comprises a first insulating sleeve vertically arranged on the panel and a first ignition needle penetrating through the first insulating sleeve, the lower end part of the first ignition needle is electrically connected with the output end of the stove ignition circuit, and the upper end part of the first ignition needle can be electrically contacted with the lower end of the second ignition needle.

The first ignition assembly is fixedly arranged on the panel, and the second ignition needle is electrically contacted with the first ignition needle only after the burner moves downwards and falls onto the panel; therefore, the burner can be ignited on the panel firstly, and then moves upwards after the ignition is successful;

or the first ignition component can be arranged on the panel in a vertically telescopic mode and is always in electrical contact with the second ignition needle. In this way, the burner can achieve ignition at different heights, and also can achieve ignition on the panel.

In order to realize that the first ignition needle and the second ignition needle can be stably and quickly contacted so as to ensure the ignition success rate, the improvement is that the first ignition component is fixedly arranged on the panel; the second ignition assembly is vertically arranged in the mounting hole of the combustor, the lower end surface of the second insulating sleeve or the mounting hole is upwards and inwards concave to form a first notch, and the lower end of the second ignition needle is exposed in the first notch; the upper end part of the first ignition needle can be inserted into the first notch from bottom to top and is contacted with the lower end of the second ignition needle. Therefore, the contact position of the two ignition needles is positioned in the notch, so that the ignition safety is ensured, and the spark splashing is avoided.

In order to further facilitate the insertion of the first ignition needle into the first recess to contact with the second ignition needle, the first recess is further improved to be of a conical structure with the caliber gradually reduced from bottom to top.

In order to form a closed ignition environment and further avoid spark splashing, only the upper end part of the first ignition needle in the first ignition assembly is exposed above the panel; the lower end face of the second insulating sleeve or the mounting hole can abut against the panel or the first insulating sleeve to close the first notch. And only the upper end part of the first ignition needle is exposed above the panel, so that the integral appearance of the cooker can be ensured, and the panel is convenient to clean.

When the height-adjustable festival of first ignition subassembly on the panel, the regulative mode can adopt manual regulation, also can adopt automatically regulated, in this application, for making first ignition subassembly can contact the second ignition subassembly all the time, first ignition subassembly can be according to the high automatic rising ground setting of combustor on the panel.

In order to realize the automatic lifting of the first ignition assembly, the first ignition assembly vertically penetrates through the panel and is arranged on the panel through the limiting piece and the elastic piece;

the limiting part is arranged on the bottom surface of the panel corresponding to the first ignition component and penetrates up and down to form a channel for the first ignition component to move up and down; a step is convexly arranged on the inner wall of the limiting part, and a limiting space for limiting the up-and-down movement distance of the first ignition assembly is formed between the bottom surface of the panel and the step; the outer side wall of the first ignition component is convexly provided with a flange which can be abutted against the bottom surface and the step of the panel;

the elastic element acts on the first ignition component so that the first ignition component always has the tendency of moving upwards;

the first ignition assembly can move downwards along the panel under the action of external force, and moves upwards under the action of the elastic piece after the external force is cancelled so as to reset;

the external force is the pressure exerted on the first ignition assembly by the burner or the second ignition assembly.

The elastic piece can be selected from a spring, a shrapnel and the like.

Thus, when the burner descends, the first ignition component moves downwards to be always in contact with the second ignition component, and when the burner ascends, the first ignition component moves upwards along with the first ignition component.

In order to ensure that the first ignition needle and the second ignition needle can be stably contacted and improve the ignition success rate and the ignition safety, the upper end part of the first insulation sleeve is connected with the second insulation sleeve in an inserting and matching manner, and the upper end part of the first ignition needle is electrically contacted with the lower end of the second ignition needle after the first insulation sleeve and the second insulation sleeve are inserted and connected.

Furthermore, a second notch is formed on the upper end surface of the first insulating sleeve in a downward concave manner, and the upper end part of the first ignition needle is exposed out of the bottom of the second notch; the outer diameter of the bottom of the second insulating sleeve is smaller than the inner diameter of the second notch, the bottom of the second insulating sleeve is inserted into the second notch from top to bottom, and the lower end of the second ignition needle is in contact with the upper end of the first ignition needle and then is located in the second notch. Thus, the second notch acts as a barrier protection against sparks splashing out during ignition.

Similarly, in order to ensure that the second ignition assembly can be accurately inserted into the second recess, the inner wall of the insertion end of the second recess is in a horn shape with the caliber gradually reduced. When the second ignition component is plugged, the second ignition component can slide into the second notch along the second notch as long as the second ignition component is in the range of the bell mouth.

Combustor accessible elevating system in this application can set up on the panel with reciprocating, for the convenience of adjusting the height of combustor, and simplify the structure, the clean panel of being convenient for, so for further solving above-mentioned second technical problem, it is preferred, the panel epirelief is equipped with at least one confession gas and makes progress spun nozzle, the combustor can suspend the top of nozzle, be equipped with the gas mixing chamber that supplies gas and air to get into in this combustor, the entry of gas mixing chamber with the nozzle is relative. Therefore, when the first ignition assembly is fixed on the panel, the first ignition needle and the second ignition needle are contacted to realize ignition when the burner falls on the panel, after the ignition is successful, the burner is suspended again, and the gas and the air sprayed out from the nozzle can continuously enter the burner to enable the burner to be in a normal working state. When the first ignition component is arranged on the panel in a manner of moving up and down, the burner can realize ignition in a complete suspension state, and can also realize ignition when the first ignition component falls on the panel, and the first ignition component is suspended after the first ignition component is successfully ignited. The suspension design of the burner can avoid the heat generated by combustion from being conducted to the panel, so that the temperature of the panel is reduced; meanwhile, the distance between the burner and the pot can be reduced under the suspension state, and the heat efficiency is improved. After the burner is taken away, only part of the discharge assembly and the nozzle are arranged on the panel, so that the panel is convenient to clean.

In order to realize that the burner can be suspended on the panel, the burner is provided with a magnetic part, the panel is correspondingly provided with an electromagnet, and the electromagnet can generate magnetism repulsive to the magnetic part when being electrified, so that the burner moves upwards and is suspended on the panel. The magnetic properties of the electromagnet, and thus the height of the burner, are controlled by controlling the current through the electromagnet.

In order to ensure that the burner can be stably suspended above the nozzles, at least two nozzles are arranged and are symmetrically distributed by taking the first ignition assembly as a center; the inlet of the air mixing cavity and the second ignition assembly are vertically arranged and are positioned in the central axial direction of the burner, and the outer diameter of the second ignition assembly is smaller than the inner diameter of the inlet of the air mixing cavity. Make air and gas can get into the combustor from the center of combustor, avoid the influence of air current to combustor suspension stability, further guaranteed the alignment of first ignition subassembly with the second ignition subassembly.

In order to accurately drop the burner to the central position when the burner is lowered onto the panel, preferably, the cross section of the inner wall of the burner, which forms the inlet of the gas mixing cavity, is annular, and the outer surface of the upper part of each nozzle is provided with a corresponding conical surface and integrally forms a guide conical surface along which the inner wall of the inlet of the gas mixing cavity slides. In this way, the burner can be lowered along the guide cone onto the panel.

In order to ensure normal supplement of primary air during ignition and further ensure the success rate of ignition, the bottom surface of the burner is provided with at least two support legs in a downward protruding mode, the burner contacts the panel through the support legs, a space for supplementing air is formed between the bottom surface of the burner and the panel, and the space is communicated with an inlet of the air mixing cavity. Therefore, when the burner falls onto the panel, the bottom surface of the burner is not contacted with the panel, and a primary air inlet is formed.

Compared with the prior art, the invention has the advantages that: through setting up the combustor activity from top to bottom on the panel, set up the second subassembly of igniteing on the combustor, set up first subassembly of igniteing on the panel, so, just can realize discharging and ignite after first subassembly of igniteing on panel and the second subassembly of igniteing on the combustor contact.

The second ignition assembly in the application can be directly fixed on the panel and also can be arranged on the panel in a vertically telescopic manner; when the second ignition assembly is fixed on the panel, stable ignition can be realized only by dropping the burner onto the panel and contacting the first ignition assembly and the second ignition assembly; when the second ignition assembly can set up on the panel telescopically from top to bottom, the second ignition assembly can carry out altitude mixture control according to the height of combustor, also is the height of first ignition assembly for the second ignition needle contact first ignition needle in the second ignition assembly, and then makes the combustor homoenergetic realize igniteing on each height.

Therefore, the ignition mode of the ignition needle in the prior art is changed, and the installation mode of the combustor is more flexible. And the structure is simple, and the implementation is convenient. Because the height-adjustable of combustor in this application can be according to the height of the shape regulation combustor of pan, makes the combustor be close the bottom of a boiler, and then has improved the thermal efficiency, guarantees to heat fully.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention (a left burner on a stove is located on a panel, and a right burner on the stove is suspended on the panel);

FIG. 2 is a schematic structural view of a burner according to a first embodiment of the present invention (after the burner is removed from the panel);

FIG. 3 is a cross-sectional view of a first embodiment of the invention (burner on panel);

FIG. 4 is a cross-sectional view of a first embodiment of the present invention (burner suspended from a panel);

FIG. 5 is an enlarged view of portion A of FIG. 3;

FIG. 6 is an enlarged view of portion B of FIG. 4;

FIG. 7 is a partial cross-sectional view of a first embodiment of the present invention;

FIG. 8 is a schematic structural view of a second embodiment of the present invention (the burner is not disposed on the left cooker, and the burner is disposed on the panel on the right cooker);

FIG. 9 is a cross-sectional view of a second embodiment of the invention (burner on panel);

FIG. 10 is a cross-sectional view of a second embodiment of the invention (burner suspended from a panel);

FIG. 11 is an enlarged view of portion C of FIG. 9;

FIG. 12 is an enlarged view of portion D of FIG. 10;

FIG. 13 is a schematic structural view of a third embodiment of the present invention (the burner on the left stove is suspended on the panel, and the burner on the right stove is detached from the panel);

FIG. 14 is a partial cross-sectional view of a third embodiment of the invention (burner in suspension);

FIG. 15 is a partially exploded view of a third embodiment of the present invention;

FIG. 16 is an enlarged view of portion F of FIG. 14;

fig. 17 is an enlarged view of a portion E in fig. 13.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

The first embodiment is as follows:

as shown in fig. 1 to 7, a gas cooking appliance according to a first preferred embodiment of the present invention includes a panel 1, a burner 2, a first ignition assembly 3 and a second ignition assembly 4.

Wherein, as shown in fig. 1, the burner 2 can be suspended on the panel 1 up and down, and the suspension height is adjustable.

In order to realize ignition when the burner 2 descends to the panel 1, the second ignition assembly 4 is vertically arranged in the mounting hole 20 of the burner 2, and comprises a second insulating sleeve 41 vertically arranged in the mounting hole 20 on the burner 2 and a second ignition needle 42 vertically penetrating the second insulating sleeve 41, the upper end of the second ignition needle 42 is exposed in the second insulating sleeve 41 and is opposite to the ignition hole 21 at the top of the burner 2, and the lower end of the second ignition needle is arranged towards the first ignition assembly 3; the first ignition component 3 is fixedly mounted on the panel 1 corresponding to the second ignition component 4, the first ignition component 3 comprises a first insulating sleeve 31 vertically arranged on the panel 1 and a first ignition needle 32 penetrating the first insulating sleeve 31, the lower end part of the first ignition needle 32 is electrically connected with the output end of the stove ignition circuit, and the upper end part of the first ignition needle can be electrically contacted with the lower end part of the second ignition needle 42 when the burner 2 descends to the panel 1. Because the combustor 2 ignites when falling onto the panel 1 in the embodiment, at the moment, the combustor 2 is in a static state, so that the contact between the first ignition needle and the second ignition needle is more reliable, and the ignition reliability is ensured.

In this embodiment, only the upper end of the first ignition needle 32 in the first ignition assembly 3 is exposed above the panel 1 (in this embodiment, the height of the first ignition needle 32 exposed on the panel 1 is about 5 mm), the upper end surface of the first insulating sleeve 31 is flush with the upper end surface of the panel 1, the lower end surface of the mounting hole 20 is upwardly and inwardly recessed to form a first recess 411, the first recess 411 is in a tapered structure with a gradually reduced caliber from bottom to top, the lower end surface of the second ignition needle 42 is exposed in the first recess 411 and is flush with the small-caliber end of the first recess 411, and the caliber of the small-caliber end of the first recess 411 is slightly larger than the outer diameter of the upper end of the first ignition needle 32, so that when the burner 2 is completely placed on the panel 1, the upper end of the first ignition needle 32 can be inserted into the first recess 411 from bottom to top and accurately contact the second ignition needle 42. In order to improve the ignition safety and avoid the spark from splashing, the lower end face of the second insulating sleeve 41 can abut on the panel 1 to close the first notch 411. In this way, the first and second ignition needles can achieve discharge ignition in the relatively closed first recess 411.

In order to make the burner 2 can be supplemented with air and gas when falling on the panel 1 and suspending on the panel 1, and the normal suspension of the burner 2 is not affected, two nozzles 11 which are distributed at intervals and used for spraying gas upwards are vertically and convexly arranged on the panel 1, and the nozzles 11 are exposed on the panel 1; the combustor 2 is an integrated piece, the combustor 2 can be suspended above the nozzle 11, a gas mixing cavity 23 for gas and air to enter is vertically arranged in the combustor 2, an inlet 22 of the gas mixing cavity 23 is opposite to the nozzle 11, and the combustor 2 is provided with an ignition hole 24 and an ignition hole 21 which are communicated with the gas mixing cavity 23. Meanwhile, at least two supporting legs 25 are convexly arranged on the bottom surface of the burner 2 downwards, the burner 2 contacts the panel 1 through the supporting legs 25, a space for air supplement is formed between the bottom surface of the burner 2 and the panel 1, and the space is communicated with the inlet 22 of the gas mixing cavity 23. In this way, when the burner 2 is dropped on the panel 1, the gas enters the burner 2 through the nozzle 11 and the inlet 22 of the gas mixing cavity 23, the air enters the burner 2 along with the gas through the space between the bottom of the burner 2 and the panel 1, and the combustion is realized when the first ignition needle 32 discharges; in addition, in the embodiment, the nozzle 11 is exposed on the panel 1, and the first recess 411 on the second insulating sleeve 41 is sealed with the panel 1, so that the sealing surface of the first recess 411 is lower than the air outlet of the nozzle 11, and since the gas is sprayed upwards from the nozzle 11 and a large amount of air is injected from the periphery, the contact position of the first ignition needle and the second ignition needle is almost free of gas, and the ignition safety is ensured. When the combustor 2 moves upwards and is in a suspension state, air and fuel gas energy sources are continuously supplemented into the combustor 2, so that the combustor 2 keeps a working state, at the moment, the combustor 2 can burn in the suspension state, the combustor 2 is enabled to be closer to the bottom of a pot, the heat efficiency is improved, and the heating is ensured to be full; and heat generated by the combustion of the burner 2 can be prevented from being conducted to the panel 1.

In order to stably suspend the burner 2 on the panel 1, the two nozzles 11 are symmetrically distributed on the panel 1 by taking the first ignition assembly 3 as a center, the inlet 22 of the air mixing cavity 23 and the second ignition assembly 4 are positioned in the central axial direction of the burner 2, and the outer diameter of the second ignition assembly 4 is smaller than the inner diameter of the inlet 22 of the air mixing cavity 23. In this way, the inlet 22 of the air mixing chamber 23 surrounds the second ignition module 4, and the nozzle 11 faces the space between the inlet 22 of the air mixing chamber 23 and the second ignition module 4. In order to prevent the nozzle 11 from being blocked by the influence of the overflowing liquid, the position of the top of the combustor 2, which corresponds to the inlet 22 of the gas mixing cavity 23, is of a closed structure, and a fire outlet and an ignition hole are not formed in the closed structure, so that the overflowing liquid is prevented from dropping into the inlet 22 of the gas mixing cavity 23 to block the nozzle; meanwhile, a flow equalizing plate 26 is arranged inside the combustor 2, and the flow equalizing plate 26 is positioned right above the nozzle 11 to prevent the problems of flame separation and the like.

In order to center the burner 2 when it is lowered so that the first and second ignition elements are aligned, the inner wall of the burner 2 forming the inlet 22 of the air mixing chamber 23 has a circular cross-section, and the upper outer surface of each nozzle 11 has a corresponding conical surface 110 and integrally forms a guide cone along which the inner wall of the inlet 22 of the air mixing chamber 23 slides. Thus, when the burner 2 descends and is not centered, the guiding conical surface formed by the nozzle 11 can guide the burner 2 to slide to a proper position, and the burner 2 can accurately descend to a central position when descending by matching with the insertion of the first conical notch 411 on the second insulating sleeve 41 and the first ignition needle 32.

The burner 2 in this embodiment is suspended as follows:

the burner 2 is provided with a magnetic member 27, the panel 1 is correspondingly provided with an electromagnet 12, and the electromagnet 12 can generate magnetism repulsive to the magnetic member 27 when being electrified, so that the burner 2 is suspended on the panel 1. By controlling parameters such as the current flowing through the electromagnet 12, the automatic lifting of the burner 2 can be realized.

The method specifically comprises the following steps: the electromagnet 12 is provided with a ring shape and is arranged below the panel 1 by taking the nozzle 11 as a center; the magnetic member 27 is a high temperature resistant permanent magnet, and is provided at the lower portion of the burner 2 centering on the nozzle 11. And the lower portion of the burner 2 is provided with a heat insulating layer for surrounding the magnetic member 27. Thus, the influence of high temperature on the magnetic member 27 can be avoided. Meanwhile, the electromagnet 12 is arranged below the panel 1, so that the panel 1 is simpler and is convenient to clean. In order to avoid the position deflection of the burner 2 during suspension, the burner also comprises a Hall sensor 5 for sensing the position of the burner 2, a controller connected with the output end of the Hall sensor 5 and at least two electromagnetic pieces for independently adjusting the intensity of magnetic field, wherein the electromagnetic pieces are symmetrically distributed on the electromagnet 12 by taking the nozzle as the center and are connected with the output end of the controller. Therefore, the Hall sensor 5 can sense the position of the burner 2 at any time, and the intensity of the electromagnetic field is adjusted according to the change of the position of the burner 2, so that the position stability of the suspension burner 2 is ensured.

The nozzle 11 is connected with an air pipe 6 for conveying gas, and the air pipe 6, the panel 1 and the like are made of non-magnetic materials, so that the interference to a magnetic field is avoided. The fire power of the burner 2 is determined by the gas ejection amount of the nozzle 11, and can be controlled by a motor or a proportional valve, and the operation interface is controlled by a magnetic control knob or a projection.

Adopt suspension design's combustor 2 conveniently to realize in the time of 2 altitude mixture control on the combustor, combustor 2 can be directly tak away from panel 1 when out of work, and at this moment, only remain nozzle 11 and first ignition subassembly 3 on the panel 1, and then the panel 1 of being convenient for is clean. Please refer to fig. 1 and 2. The cooking appliance of the embodiment also comprises a pan support 7, and the pan support 7 is arranged on the panel 1 and positioned around the burner 2. To further facilitate cleaning of the panel 1, the pan support 7 rests on the panel 1 and can be removed directly from the panel 1 when cleaning is required.

In the present embodiment, the mounting structure of the first ignition element 3 and the nozzle 11 on the panel 1 is: the first ignition component 3 is connected to the panel 1 through the mounting seat 8, the mounting seat 8 is integrally T-shaped, the middle part of the mounting seat is provided with an insertion hole 81 for inserting the lower part of the first ignition component 3, and two sides of the mounting seat are provided with threaded holes 82. The nozzle 11 is T-shaped, the lower part of the nozzle passes through the panel 1 and is connected with the thread hole 82 in a threaded mode, the upper part of the nozzle 11 can abut against the panel 1, and in order to facilitate the connection of the nozzle 11 with the mounting seat 8, the upper part of the nozzle 11 is provided with an octagonal edge. Further, the nozzle 11, the panel 1, the first ignition module 3, and the mount 8 are connected together.

Example two:

as shown in fig. 8 to 12, a second preferred embodiment of the gas cooking appliance of the present invention is substantially the same as the first preferred embodiment, and the difference is mainly that in the second preferred embodiment, the top of the first insulating sleeve 31 in the first ignition assembly 3 is exposed above the panel 1, the top surface of the first insulating sleeve 31 is recessed downwards to form a cavity 311, the first ignition pin 32 is exposed in the cavity 311, and the first ignition pin 32 is located at a position lower than the top surface of the first insulating sleeve 31, so that the first ignition pin 32 is accommodated in the cavity 311. The lower end of the second ignition pin 42 of the second ignition assembly 4 is exposed downward out of the second insulating sleeve 41, so that when the burner 2 is dropped onto the panel 1, the second ignition pin 42 can contact the first ignition pin 32, and the contact point is located in the cavity 311. In order to further improve the ignition safety, when the burner 2 is dropped on the panel 1, the position of the bottom surface of the burner 2 corresponding to the concave cavity 311 can cover the concave cavity 311, so that the first ignition needle and the second ignition needle are in a relatively closed environment when in contact, and the sparks are prevented from splashing.

In the embodiment, the mounting seat 8 is directly fixed at the bottom of the panel 1.

Example three:

as shown in fig. 13 to 17, a third preferred embodiment of the gas cooking appliance of the present invention is substantially the same as the first embodiment, except that the first ignition assembly 3 is telescopically disposed on the panel 1 and electrically contacts with the second ignition pin 42 all the time.

The method specifically comprises the following steps: the second ignition assembly 4 comprises a second insulating sleeve 41 vertically arranged in the mounting hole 20 of the burner 2 and a second ignition needle 42 penetrating the second insulating sleeve 41, the upper end of the second ignition needle 42 is exposed to the second insulating sleeve 41 and is opposite to the ignition hole 21 on the burner 2, and the lower end of the second ignition needle is arranged towards the first ignition assembly 3; the second insulating sleeve 41 is made of high temperature resistant ceramic.

First ignition module 3 vertically passes panel 1 after can set up on panel 1 with stretching out and drawing back from top to bottom, first ignition module 3 including vertical setting on panel 1 and can be relative to panel 1 first insulation cover 31 that reciprocates and vertically wear to establish in first insulation cover 31 and along with first ignition needle 32 of first insulation cover 31 removal, the lower tip of first ignition needle 32 is connected with the ignition power supply, upper end can be with the lower extreme looks electrical contact of above-mentioned second ignition needle 42.

As shown in fig. 14 and 16, in the present embodiment, the connection structure between the first ignition module 3 and the panel 1 is: the first ignition module 3 is installed on the panel 1 to be automatically lifted according to the height of the burner 2. The method specifically comprises the following steps:

the first ignition component 3 is arranged on the panel 1 through a limiting piece 9 and an elastic piece 10;

the limiting piece 9 is arranged on the bottom surface of the panel 1 corresponding to the first ignition component 3, and the limiting piece 9 penetrates up and down to form a channel 90 for the first ignition component 3 to move up and down; a step 91 is convexly arranged on the inner wall of the limiting part 9, and a limiting space 92 for limiting the up-and-down movement distance of the first ignition component 3 is formed between the bottom surface of the panel 1 and the step 91; the outer side wall of the first ignition component 3 is convexly provided with a flange 33 which can be abutted against the bottom surface of the panel 1 and the step 91;

the elastic part 10 is a spring which is sleeved on the first ignition component 3, and the upper end and the lower end of the spring are respectively abutted against the flange 33 and the limiting part 9, so that the first ignition component 3 always has the tendency of moving upwards; the elastic resistance provided by the spring in the embodiment does not obstruct the normal lifting of the burner 2;

the first ignition module 3 can move downwards along the panel 1 when the burner 2 descends and is pressed by the lower end surface of the mounting hole 20, and moves upwards under the action of the elastic element 10 when the burner 2 ascends to reset; and thus can be in electrical contact with the second ignition module 4 on the burner 2 all the time during the lifting and lowering of the burner 2.

In order to realize the stable contact between the second ignition needle 42 and the first ignition needle 32 and ensure the ignition success rate, the upper end part of the first insulating sleeve 31 is connected with the lower end part of the second insulating sleeve 41 in an inserting manner, and the upper end part of the first ignition needle 32 is contacted with the lower end part of the second ignition needle 42 after the first insulating sleeve and the second insulating sleeve are inserted. Specifically, a second notch 311 is formed by downward and inwardly recessing the upper end surface of the first insulating sleeve 31, the inner wall of the insertion end of the second notch 311 is in a trumpet shape with the caliber gradually reduced, and the upper end part of the first ignition needle 32 is exposed at the bottom of the second notch 311; the outer diameter of the lower end of the second insulating sleeve 42 is smaller than the inner diameter of the second recess 311, and the second insulating sleeve is inserted into the second recess 311 from top to bottom, and the lower end of the second ignition pin 42 is in contact with the upper end of the first ignition pin 32 and then is located in the second recess 311. In the plugged state, the lower end surface of the mounting hole 20 abuts on the upper end surface of the second notch 311 to partially close the second notch 311. In this embodiment, the depth of the inward recess of the second recess 311 is at least 3mm greater than the length of the first ignition needle 32 in the second recess 311 to further prevent spark splash during discharge.

As shown in fig. 13, in use, the burner 2 floats in the air, the first ignition module 3 is in contact with the second ignition module 4 all the time as the burner 2 ascends, the first ignition module 3 is discharged and ignited, and the burner 2 can burn in a floating state. When the burner 2 is lowered onto the panel 1 after use, the first ignition element 3 is moved down accordingly. When the panel 1 needs to be cleaned, the burner 2 and the pot support 7 are taken down, and only the nozzle 11 and the local first ignition assembly 3 are left on the panel 1, so that the panel 1 is convenient to clean.

Claims

1. A gas cooker comprises a panel (1) and a burner (2) provided with an ignition hole (21); the method is characterized in that:

the burner (2) can be movably arranged on the panel (1) up and down;

the combustor (2) is provided with a second ignition assembly (4), the second ignition assembly (4) comprises a second insulating sleeve (41) vertically arranged on the combustor (2) and a second ignition needle (42) penetrating through the second insulating sleeve (41), and the upper end of the second ignition needle (42) is exposed in the second insulating sleeve (41) and is opposite to an ignition hole (21) in the combustor (2);

the panel ignition device is characterized in that a first ignition component (3) is arranged on the panel (1) corresponding to the second ignition component (4), the first ignition component (3) comprises a first insulating sleeve (31) vertically arranged on the panel (1) and a first ignition needle (32) penetrating through the first insulating sleeve (31), the lower end part of the first ignition needle (32) is electrically connected with the output end of an ignition circuit of the stove, and the upper end part of the first ignition needle can be electrically contacted with the lower end of the second ignition needle (42).

2. Gas hob according to claim 1, characterized in that: the first ignition component (3) is fixedly arranged on the panel (1), and the second ignition needle (42) is electrically contacted with the first ignition needle (3) only after the burner (2) moves downwards and falls onto the panel (1);

or the first ignition component (3) can be arranged on the panel (1) in a vertically telescopic manner and is always in electric contact with the second ignition needle (42).

3. A gas hob according to claim 2, characterized in that: the first ignition component (3) is fixedly arranged on the panel (1); the second ignition assembly (4) is vertically arranged in a mounting hole (20) of the combustor (2), the lower end of the second insulating sleeve (41) or the mounting hole (20) is upwards and inwards concave to form a first notch (411), and the lower end of the second ignition needle (42) is exposed in the first notch (411); the upper end part of the first ignition needle (32) can be inserted into the first notch (411) from bottom to top and is contacted with the lower end of the second ignition needle (42).

4. A gas hob according to claim 3, characterized in that: the first notch (411) is of a conical structure with the caliber gradually reduced from bottom to top.

5. A gas hob according to claim 3, characterized in that: only the upper end part of a first ignition needle (32) in the first ignition component (3) is exposed on the panel (1); the lower end face of the second insulating sleeve (41) or the mounting hole (20) can abut on the panel (1) or the first insulating sleeve (31) to close the first notch (411).

6. A gas hob according to claim 2, characterized in that: the first ignition assembly (3) can be arranged on the panel (1) in a manner of automatically lifting according to the height of the burner (2);

the first ignition assembly (3) vertically penetrates through the panel (1) and is arranged on the panel (1) through the limiting piece (9) and the elastic piece (10);

the limiting piece (9) is arranged on the bottom surface of the panel (1) corresponding to the first ignition component (3), and the limiting piece (9) penetrates up and down to form a channel (90) for the first ignition component (3) to move up and down; a step (91) is convexly arranged on the inner wall of the limiting piece (9), and a limiting space (92) for limiting the up-and-down movement distance of the first ignition component (3) is formed between the bottom surface of the panel (1) and the step (91); a flange (33) which can be abutted against the bottom surface of the panel (1) and the step (91) is convexly arranged on the outer side wall of the first ignition component (3);

the elastic element (10) acts on the first ignition module (3) so that the first ignition module (3) always has a tendency to move upwards;

the first ignition component (3) can move downwards along the panel (1) under the action of external force, and moves upwards under the action of the elastic piece (10) after the external force is removed to reset;

the external force is the pressure exerted on the first ignition assembly (3) by the burner (2) or the second ignition assembly (4).

7. Gas hob according to claim 6, characterized in that: the upper end part of the first insulating sleeve (31) is connected with the second insulating sleeve (41) in an inserting and matching mode, and the upper end part of the first ignition needle (32) is electrically contacted with the lower end of the second ignition needle (42) after the first insulating sleeve and the second insulating sleeve are inserted and connected.

8. Gas hob according to claim 7, characterized in that: a second notch (311) is formed in the upper end surface of the first insulating sleeve (31) in a downward concave manner, and the upper end part of the first ignition needle (32) is exposed out of the bottom of the second notch (311); the outer diameter of the bottom of the second insulating sleeve (41) is smaller than the inner diameter of the second notch (311), the bottom of the second insulating sleeve (41) is inserted into the second notch (311) from top to bottom, and the lower end of the second ignition needle (42) is in contact with the upper end of the first ignition needle (32) and then is located in the second notch (311).

9. A gas hob according to any one of the claims 1 to 8, characterized in that: the gas burner is characterized in that at least one nozzle (11) for upwards spraying gas is convexly arranged on the panel (1), the burner (2) can be suspended above the nozzle (11), a gas mixing cavity (23) for gas and air to enter is arranged in the burner (2), and an inlet (22) of the gas mixing cavity (23) is opposite to the nozzle (11).

10. Gas hob according to claim 9, characterized in that: the combustor (2) is provided with a magnetic part (27), the panel (1) is correspondingly provided with an electromagnet (12), and the electromagnet (12) can generate magnetism repulsive to the magnetic part (27) when being electrified, so that the combustor (2) moves upwards and is suspended on the panel (1).

11. Gas hob according to claim 9, characterized in that: the number of the nozzles (11) is at least two, and the nozzles are symmetrically distributed by taking the first ignition component (3) as a center; an inlet (22) of the air mixing cavity (23) and the second ignition assembly (4) are vertically arranged and are positioned in the central axial direction of the combustor (2), and the outer diameter of the second ignition assembly (4) is smaller than the inner diameter of the inlet (22) of the air mixing cavity (23).

12. Gas hob according to claim 11, characterized in that: the section of the inner wall of the combustor (2) forming the inlet (22) of the air mixing cavity (23) is annular, the outer surface of the upper part of each nozzle (11) is provided with a corresponding conical surface (110) and integrally forms a guide conical surface along which the inner wall of the inlet (22) of the air mixing cavity (23) slides.

13. Gas hob according to claim 9, characterized in that: the bottom surface of the combustor (2) is provided with at least two supporting legs (25) in a downward protruding mode, the combustor (2) is in contact with the panel (1) through the supporting legs (25), a space for air supplement is formed between the bottom surface of the combustor (2) and the panel (1), and the space is communicated with the inlet (22) of the air mixing cavity (23).