CN107642778B - Fire cover and burner - Google Patents
Fire cover and burner Download PDFInfo
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- CN107642778B CN107642778B CN201710901137.8A CN201710901137A CN107642778B CN 107642778 B CN107642778 B CN 107642778B CN 201710901137 A CN201710901137 A CN 201710901137A CN 107642778 B CN107642778 B CN 107642778B
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- 238000001514 detection method Methods 0.000 claims abstract description 32
- 230000000149 penetrating effect Effects 0.000 claims abstract description 9
- 238000002485 combustion reaction Methods 0.000 claims description 19
- 239000000919 ceramic Substances 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 98
- 239000002737 fuel gas Substances 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 239000004047 hole gas Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000237983 Trochidae Species 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000003915 liquefied petroleum gas Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Gas Burners (AREA)
Abstract
The invention discloses a fire cover, a burner and a gas stove. The fire cover comprises an annular upper cover, an annular outer side wall downwards extending from the outer edge of the annular upper cover, a plurality of detection fire holes penetrating through the annular outer side wall and a fire transfer hole wall penetrating through the inner side of the fire cover and the annular outer side wall so as to form a fire transfer hole communicated with the inner side and the outer side of the fire cover. The annular upper cover and the annular outer side wall form at least part of the boundary of the mixed gas chamber of the fire cover. The fire cover is continuously distributed on the inner surface of the fire transfer hole along the orthographic projection of the fire cover from top to bottom in the axial direction and covers the inner surface of the fire transfer hole. When the fire cover, the burner and the gas stove are opened for small fire, flames are arranged in the fire transmission holes, the flames in the fire transmission holes are not easy to be extinguished due to environmental interference, and the flames can be transmitted to keep the detection fire holes and the burner stable and continuously burning when the small fire is generated.
Description
Technical Field
The invention relates to a gas stove technology, in particular to a fire cover and a burner.
Background
When the gas stove in the related art is started to be on a small fire, the flame of the fire hole of the fire cover corresponding to the temperature detection device is small, and the fire is easy to be extinguished due to the interference of the environment. The gas stove stops the fire after the temperature detection device detects that the inner ring flame is flameout, and the small fire of the gas stove can not be ensured to continuously and stably burn.
Disclosure of Invention
Embodiments of the present invention provide a fire cover, a burner, and a gas stove.
The fire cover comprises an annular upper cover, an annular outer side wall, a detection fire hole and a fire transfer hole wall, wherein the annular outer side wall extends downwards from the outer edge of the annular upper cover, the detection fire hole penetrates through the annular outer side wall, and the fire transfer hole wall penetrates through the inner side of the fire cover and the annular outer side wall so as to form the fire transfer hole communicated with the inner side and the outer side of the fire cover. The annular upper cover and the annular outer side wall form at least part of the boundary of the mixed gas chamber of the fire cover. The fire cover is continuously distributed on the inner surface of the fire transfer hole along the orthographic projection of the axis of the fire cover from top to bottom and covers the inner surface of the fire transfer hole.
In certain embodiments, the fire cover is integrally formed and is annular.
In certain embodiments, the detection fire hole is disposed below the fire hole proximate to the fire hole.
In certain embodiments, the cross-section of the fire transfer holes comprises a circle or square.
In certain embodiments, the fire transfer hole wall comprises an upper arching wall. And an arc-shaped concave is formed on the upper arch wall close to the inner side of the fire cover.
In certain embodiments, the fire cover is formed with an inner fire hole extending through the fire passing hole wall.
In certain embodiments, the fire cover is formed with a plurality of main fire holes penetrating the annular outer sidewall and communicating with the mixed gas chamber. The plurality of main fire holes are distributed at equal intervals in the circumferential direction of the annular outer side wall and have the same height.
In certain embodiments, the fire cover is formed with an annular recess on an outer surface of the annular outer sidewall. The inner wall of the annular recess is provided with a secondary fire hole penetrating through the outer side wall of the annular recess.
In certain embodiments, the annular recess is located above the plurality of main fire holes and passes through the fire transfer holes.
In certain embodiments, the fire cover comprises a ceramic fire cover.
The burner comprises a gas distribution plate, the fire cover in any one of the embodiments, and a central fire cover arranged on the gas distribution plate and positioned on the inner side of the fire cover. The fire cover is arranged on the gas distribution plate. The center fire cover and the gas distribution plate define a center mixed gas chamber. The central mixed gas chamber receives mixed gas and supplies the mixed gas to the central fire cover for combustion.
In certain embodiments, the burner includes an outer annular flame cover disposed on the gas distribution plate and located outside the flame cover. The outer ring fire cover and the gas distribution plate define an outer ring mixed gas chamber. The outer ring mixed gas chamber receives mixed gas and supplies the mixed gas to the outer ring fire cover for combustion.
The gas stove comprises a stove top shell and the burner of the embodiment. The burner is disposed on the cooktop housing.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
fig. 1 is a schematic plan view of a gas range according to an embodiment of the present invention;
FIG. 2 is a schematic perspective view of a fire cover according to an embodiment of the present invention;
FIG. 3 is a schematic plan view of a fire cover according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of the fire cover of FIG. 3 in the direction IV-IV;
FIG. 5 is a schematic cross-sectional view of the fire cover of FIG. 3 taken along the V-V direction;
FIG. 6 is a schematic perspective view of a burner according to an embodiment of the present invention;
FIG. 7 is a schematic plan view of a burner according to an embodiment of the present invention from one perspective;
FIG. 8 is a schematic cross-sectional view of the combustor of FIG. 7 along the direction VIII-VIII; and
fig. 9 is a schematic cross-sectional view of the burner of fig. 7 in the direction IX-IX.
The main reference symbols illustrate:
the gas range 1000, burner 100, fire cover 10, annular upper cover 12, annular outer sidewall 14, detection fire hole 142, primary fire hole 144, annular recess 146, secondary fire hole 1462, fire hole wall 16, fire hole 162, upper arch wall 164, arcuate recess 1642, inner fire hole 166, mixed gas chamber 18, gas distributor plate 20, central fire cover 30, central mixed gas chamber 32, outer annular fire cover 40, outer annular mixed gas chamber 42, cooktop housing 200.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.
Referring to fig. 1, a fire cover 10 of an embodiment of the present invention may be applied to a burner 100 of an embodiment of the present invention, and the burner 100 of an embodiment of the present invention may be applied to a gas cooker 1000 of an embodiment of the present invention. Alternatively, the burner 100 of the embodiment of the present invention may include the fire cover 10 of the embodiment of the present invention, and the gas range 1000 of the embodiment of the present invention may include the burner 100 of the embodiment of the present invention.
However, it should be understood that the fire cover 10 of the present embodiment may not be limited to application to the burner 100 of the present embodiment, but may be applied to other suitable burners 100. The burner 100 according to the embodiment of the present invention may be applied not only to the gas range 1000 according to the embodiment of the present invention but also to other combustion environments.
The gas range 1000 of the embodiment of the present invention further includes a cooktop case 200, and the burner 100 is disposed on the cooktop case 200.
The burner 100 of the embodiment of the present invention further includes a gas distribution plate 20 and a center fire cover 30, and the fire cover 10 and the center fire cover 30 are disposed on the gas distribution plate 20. The center fire cover 30 is provided inside the fire cover 10.
Referring to fig. 2 and 3, the fire cover 10 of the embodiment of the present invention includes an annular upper cover 12, an annular outer side wall 14 extending downward from an outer edge of the annular upper cover 12, a detection fire hole 142 penetrating the annular outer side wall 14, and a fire transfer hole wall 16 penetrating the inner side of the fire cover 10 and the annular outer side wall 14 to form a fire transfer hole 162 communicating the inner side and the outer side of the fire cover 10. The annular upper cover 12 and the annular outer side wall 14 form at least part of the boundary of the mixing gas chamber 18 of the fire cover 10. The fire cover 10 is continuously distributed on the inner surface of the fire transfer hole 162 along the front projection of the fire cover 10 from top to bottom in the axial direction and covers the inner surface of the fire transfer hole 162.
In the flame cover 10, the burner 100, and the gas range 1000 according to the embodiment of the present invention, the flame cover 10 is annular and is used as the inner ring flame cover 10. A temperature detecting means is often provided at a corresponding position of the detecting fire hole 142 of the fire cover 10. The temperature detecting means detects whether the flame of the detecting flame holes 142 of the flame cover 10 is extinguished to control whether the valve for transmitting the mixed gas is closed. When the flame of the fire hole 142 is extinguished, the temperature detected by the temperature detecting device is reduced, the temperature detecting device sends out a flameout signal to control the valve for transmitting the mixed gas to be closed, and the mixed gas is prevented from leaking into the air when the flameless combustion is performed, so that potential safety hazards are avoided. In the case of a small fire, the flame in the detection fire hole 142 is small and is easily extinguished by environmental influence. However, since the fire cover 10 is formed with the fire transfer hole 162, the fire transfer hole 162 can transfer the flame of the center fire cover 30 to the detection fire hole 142, so that the detection fire hole 142 is re-burned, and the flameout signal of the temperature detection device is not triggered, thereby ensuring stable combustion of the small fire of the burner 100. The orthographic projections of the fire cover 10 on the inner surface of the fire transfer hole 162 from top to bottom along the axis of the fire cover 10 are continuously distributed and cover the inner surface of the fire transfer hole 162 to indicate that the fire cover 10 forms a shielding effect on the fire transfer hole 162, so that water drops in the combustion environment can be prevented from dripping into the fire transfer hole 162 or crosswind is blown through the fire transfer hole 162 to cause the fire transfer hole 162 to lose the fire transfer function. Therefore, the stability of the light-fire combustion of the burner 100 can be improved.
The inner side of the inner edge of the annular upper cover 12 close to the axis direction of the fire cover 10 is the inner side of the fire cover 10, and the outer side of the outer edge of the annular upper cover 12 far from the axis direction of the fire cover 10 is the outer side of the fire cover 10. The central fire cover 30 is arranged on the inner side of the fire cover 10, so that the flames of the central fire cover 30 are more concentrated, and the central fire cover is beneficial to concentrated heating in the case of small fire.
In some embodiments, the mixed gas comprises a mixed gas formed by mixing a combustible gas such as natural gas, biogas or liquefied petroleum gas with air.
In certain embodiments, the fire cover 10 is integrally formed.
For example, the fire cover 10 is directly cast. Thus, first, without assembling, the production efficiency can be improved, and second, since there is no assembling structure, the structure of the fire cover 10 is stable.
In some embodiments, the fire cover 10 is annular in shape. Correspondingly, the annular upper cover 12 is in a circular annular sheet shape, and the annular outer side wall 14 is in a circular annular cylinder shape.
Specifically, the annular upper cover 12 covers the annular outer side wall 14 in a top-down projection along the axis of the fire cover 10, so that the downward and inward portions of the annular upper cover 12 and the annular outer side wall 14 are the interior of the fire cover 10, and the fire cover 10 and the gas distributing plate 20 can form a mixed gas chamber 18 in the interior of the fire cover 10 after being matched.
In certain embodiments, the detection fire hole 142 is disposed below the fire hole 162 proximate to the fire hole 162.
In this way, the detecting fire hole 142 is close to the fire transmitting hole 162, when the flame of the detecting fire hole 142 is accidentally extinguished due to environmental interference, the detecting fire hole 162 can be ignited again in time, so that the problem that the detecting fire hole 142 is not ignited again in time or the flame in the detecting fire hole 162 is too small to be transmitted to the detecting fire hole 142 to trigger a flameout signal of the temperature detecting device to cause the flame to stop of the burner 100 is avoided.
It will be appreciated that the mixed gas passes generally upwardly after exiting the detection fire hole 142, such that the detection fire hole 142 is below the pass fire hole 162, facilitating the pass fire hole 162 to pass the mixed gas of the flame ignition detection fire hole 142.
Specifically, the detecting fire holes 142 may be plural and distributed in an array. In this way, the range of the flame detected by the temperature detecting device is relatively large, so that the flame of the detecting fire hole 142 is prevented from being deviated from the corresponding position due to the influence of the environment, so that the flame cannot be detected by the temperature detecting device, and the gas stove 1000 stops.
In some embodiments, the detection fire holes 142 are substantially circular in cross-section and substantially the same size.
It will be appreciated that the circular shaped test fire holes 142 are easily formed and facilitate the transfer of the mixed gas. The sizes of the mixed fuel gas output of the detection fire holes 142 are basically the same, and the sizes of the flames formed after the mixed fuel gas transmitted by the detection fire holes 142 is ignited are basically the same, so that the flames of the detection fire holes 142 are more uniform, and the temperature detection device is favorable for detecting the flames of the detection fire holes 142.
In certain embodiments, the cross-section of the flame transfer holes 162 comprises a circle or square.
It will be appreciated that in operation, the fire cover 10 of the present embodiment has a flame in the flame transfer hole 162 and can be re-ignited through the flame transfer hole 162 after detecting that the flame in the flame hole 142 is extinguished. The cross-section of the flame transfer holes 162 is circular or square in shape and is relatively simple to manufacture and facilitates flame combustion within the flame transfer holes 162.
Referring to fig. 3, 4 and 5 together, in some embodiments, the firestop wall 16 includes an upper arching wall 164. The upper arching wall 164 is formed with an arcuate recess 1642 adjacent to the inside of the fire cover 10.
It will be appreciated that the inner side of the fire cover 10 of the burner 100 is provided with the central fire cover 30, and the opening of the fire transfer hole 162 of the fire cover 10 at the inner side of the fire cover 10 may be obstructed by the central fire cover 30 to affect the air circulation in the fire transfer hole 162. As such, upper arching wall 164 allows a portion of fire transfer apertures 162 to be taller than annular upper cover 12 and center fire cover 30, facilitating air circulation. The arc-shaped recess 1642 enlarges the opening of the fire transfer hole 162, which is communicated with the outside, inside the fire cover 10, and increases the air circulation of the fire transfer hole 162, so that enough air in the fire transfer hole 162 supports the flame combustion in the fire transfer hole 162.
Of course, in other embodiments, the concave shape of the upper arching wall 164 on the inside of the fire cover 10 may not be limited to the embodiments discussed above, but may take on suitable shapes, such as square, triangular, or other shapes, as desired. It will be appreciated that the depression of the upper arching wall 164 adjacent the inner side of the fire cover 10 should facilitate the circulation of air within the fire holes 162.
In certain embodiments, the fire cover 10 is formed with an inner fire hole 166 extending through the fire passing hole wall 16.
In this way, the inner flame hole 166 can guide the mixed fuel gas to the flame transfer hole 162, provide the mixed fuel gas for flame combustion in the flame transfer hole 162, and facilitate the flame transfer of the center flame cover 30 to the detection flame hole 142 by the flame transfer hole 162, so as to keep the flame of the detection flame hole 142 continuously burning when the burner 100 works, and not trigger the flameout signal of the temperature detection device, thereby ensuring stable combustion of the small flame of the burner 100.
Referring again to fig. 2, in certain embodiments, the fire cover 10 is formed with a plurality of primary fire holes 144 extending through the annular outer sidewall 14 and communicating with the mixed gas chamber 18, the plurality of primary fire holes 144 being equally spaced circumferentially about the annular outer sidewall 14 and being substantially identical in height.
In this way, the plurality of main fire holes 144 are distributed such that the flames transferred out of the main fire holes 144 are uniformly distributed around the outer circumference of the fire cover 10, which is advantageous for uniform heating. The plurality of primary fire holes 144 are substantially the same in height so that the mixture fires at substantially the same height, and the flame sizes distributed circumferentially along the annular outer side wall 14 are substantially the same, again facilitating uniform heating of the object.
In some embodiments, the plurality of primary fire holes 144 are substantially circular in cross-section and substantially the same size.
It will be appreciated that the circular main fire holes 144 are easy to form and facilitate the transfer of the mixed gas. The sizes of the mixed fuel gas output of the main fire holes 144 are basically the same, and the sizes of the flames formed by the ignited mixed fuel gas transmitted by the main fire holes 144 are basically the same, so that the flames of the fire cover 10 are more uniform, and the uniform heating of objects is facilitated.
In certain embodiments, the fire cover 10 is formed with an annular recess 146 on the outer surface of the annular outer sidewall 14. The inner wall of the annular recess 146 is formed with a secondary fire hole 1462 penetrating the annular outer side wall 14.
It will be appreciated that the plurality of main fire holes 144 are equally spaced in the circumferential direction of the fire cover 10, and the respective main fire holes 144 are equally spaced and have equal heights, so that it is not easy to transfer flames. The annular recess 146 is continuously distributed around the circumference of the fire cover 10 such that the annular recess 146 can transfer flames to the main fire hole 144 when the mixed gas is transferred out of the main fire hole 144. The auxiliary fire holes 1462 can be communicated with the mixed gas chamber 18, and can guide the mixed gas to the annular recess 146 to provide the mixed gas for the fire transmission of the annular recess 146, so that the annular recess 146 is beneficial to rapidly transmitting flame to ignite the flame of the main fire hole 144.
Specifically, the auxiliary fire holes 1462 may be plural and uniformly distributed along the circumferential direction of the annular recess 146. As such, the plurality of secondary flame holes 1462 enable the mixed fuel gas to be supplied to respective portions of the annular recess 146, which is also advantageous for the annular recess 146 to transmit flame.
In certain embodiments, the annular recess 146 is located above the main fire hole 144 and through the fire transfer hole 162.
Thus, the mixed gas is transferred out of the main fire hole 144 and then moves upwards, and when the mixed gas is transferred out of the main fire hole 144, the annular recess 146 is positioned above the main fire hole 144, so that flame can be transferred to the main fire hole 144 through the annular recess 146. The annular recess 146 passes through the fire transfer hole 162 such that the fire transfer hole 162 communicates with the annular recess 146, such that the annular recess 146 can transfer flames in the fire transfer hole 162 to the main fire hole 144, facilitating ignition of the fire cover 10.
In certain embodiments, the fire cover 10 comprises a ceramic fire cover 10.
As such, the fire cover 10 is within the flame when the burner 100 is burning. The ceramic fire cover 10 is resistant to high temperature, and is not easily deformed by high temperature generated by combustion in the burner 100. The ceramic fire cover 10 is not easily oxidized, which is beneficial to prolonging the service life of the burner 100.
Referring to fig. 6, 7 and 8, the central burner cap 30 and the gas distribution plate 20 of the burner 100 according to the embodiment of the present invention define a central mixed gas chamber 32, and the central mixed gas chamber 32 receives the mixed gas and supplies the mixed gas to the central burner cap 30 for combustion.
In this way, the gas separation plate 20 can control the direction of the mixed gas, and the arrow direction shown in fig. 8 is the direction of the mixed gas. When the burner 100 is in the light fire mode, the gas distribution plate 20 delivers the mixed gas to the central mixed gas chamber 32. The central fire cover 30 is formed with a plurality of fire holes communicating the central mixed gas chamber 32 with the outside, and mixed gas can be transferred to the upper side of the central fire cover 30 through the fire holes of the central fire cover 30 for combustion. The fire holes of the central fire cover 30 are concentrated, so that the flames above the central fire cover 30 are concentrated, and the central fire cover is beneficial to intensively heating objects in case of small fire.
The gas distribution plate 20 is matched with the fire cover 10, a flange is arranged on the gas distribution plate 20, and the flange can enable the detection fire hole 142 of the fire cover 10 to be communicated with the central mixed gas chamber 32, so that mixed gas can be transmitted to the fire cover 10 for combustion through the detection fire hole 142. So that the detection fire hole 142 is kept burning at a small fire without triggering a flameout signal of the temperature detection device, thereby ensuring stable burning of the burner 100 at a small fire.
Likewise, the flange on the gas distribution plate 20 enables the inner fire holes 166 of the fire cover 10 to communicate with the central mixed gas plenum 32 and the fire transfer holes 162. In this way, when the burner 100 is in the light fire mode, the mixed fuel gas can be transmitted to the fire transfer hole 162 through the inner fire hole 166 for burning, which is beneficial to the fire transfer of the fire transfer hole 162.
Referring to fig. 8 and 9 together, when the burner 100 is in the medium-fire mode, the gas distributing plate 20 transmits the mixed gas to the central mixed gas chamber 32 and the mixed gas chamber 18 and to the central fire cover 30 and the fire cover 10, so that the fire cover 10 and the central fire cover 30 burn simultaneously, which expands the range of flame combustion and is beneficial to increasing the heating area for rapid heating.
In certain embodiments, the burner 100 includes an outer annular flame cover 40 disposed on the gas distribution plate 20 and located outside of the flame cover 10. The outer ring fire cover 40 and the gas distribution plate 20 define an outer ring mixed gas chamber 42. The outer ring mixed gas chamber 42 receives mixed gas supplied to the outer ring fire cover 40 for combustion.
In this way, the outer ring fire cover 40 is formed with a plurality of fire holes communicating the outer ring mixed gas chamber 42 with the outside, and the mixed gas can be transferred to the outer ring fire cover 40 through the fire holes of the outer ring fire cover 40 to be burned. The diameter of the outer ring fire cover 40 is larger, the gas distribution plate 20 can control the transmission direction of the mixed gas, when the burner 100 starts the big fire mode, the gas distribution plate 20 transmits the mixed gas to the outer ring mixed gas chamber 42, the mixed gas chamber 18 and the central mixed gas chamber 32, so that the outer ring fire cover 40, the fire cover 10 and the central fire cover 30 burn together, the flame burning range is greatly enlarged, and the heating area is also increased so as to heat quickly.
Referring again to fig. 1, in some embodiments, the gas cooker 1000 further includes a cooktop housing 200. The burner 100 is disposed on the cooktop housing 200.
In this way, the hob housing 200 can support the burner 100 and the objects to be heated, and can simply fix and protect the burner 100. The hob housing 200 may also fix and protect other elements of the gas cooker 1000 (such as gas pipes, ignition devices, temperature detection devices, on-off valves, etc.), so that the gas cooker 1000 can work normally.
Specifically, the gas stove 1000 may be a single-hole gas stove, a double-hole gas stove, or other multi-hole gas stoves.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. A fire cover for a burner, the fire cover comprising:
an annular upper cover;
an annular outer sidewall extending downwardly from an outer edge of the annular upper cover, the annular upper cover and the annular outer sidewall forming at least a partial boundary of a mixed gas chamber of the flame cover;
a detection fire hole penetrating through the annular outer side wall; and
the fire passing hole wall penetrates through the inner side of the fire cover and the annular outer side wall to form a fire passing hole communicated with the inner side and the outer side of the fire cover, and orthographic projections of the fire cover on the inner surface of the fire passing hole along the axis of the fire cover from top to bottom are continuously distributed and cover the inner surface of the fire passing hole;
the fire transfer hole wall comprises an upper arch wall, and an arc-shaped recess is formed on the upper arch wall, which is close to the inner side of the fire cover;
the fire cover is formed with a plurality of main fire holes penetrating through the annular outer side wall and communicated with the mixed gas chamber.
2. The fire cover of claim 1, wherein said plurality of main fire holes are equally spaced circumferentially about said annular outer sidewall and are substantially the same in height.
3. The fire cover of claim 2 wherein said fire cover is formed with an annular recess in an outer surface of said annular outer sidewall, an inner wall of said annular recess being formed with a secondary fire hole extending through said annular outer sidewall.
4. A fire cover as claimed in claim 3 wherein said annular recess is located above said plurality of main fire holes and through said fire transfer holes.
5. The fire cover of claim 1 wherein said fire cover comprises a ceramic fire cover.
6. A burner, the burner comprising:
an air distribution plate;
a fire cover as claimed in any one of claims 1 to 5, disposed on the gas distribution tray; and
the central fire cover is arranged on the gas distribution plate and positioned at the inner side of the fire cover, the central fire cover and the gas distribution plate define a central mixed gas chamber, and the central mixed gas chamber receives mixed gas and supplies the mixed gas to the central fire cover for combustion.
7. The burner of claim 6, wherein the burner comprises a burner disposed on the gas distribution plate
And an outer ring fire cover positioned outside the fire cover, wherein the outer ring fire cover and the gas distribution plate define an outer ring mixed gas chamber,
the outer ring mixed gas chamber receives mixed gas and supplies the mixed gas to the outer ring fire cover for combustion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710901137.8A CN107642778B (en) | 2017-09-28 | 2017-09-28 | Fire cover and burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710901137.8A CN107642778B (en) | 2017-09-28 | 2017-09-28 | Fire cover and burner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107642778A CN107642778A (en) | 2018-01-30 |
| CN107642778B true CN107642778B (en) | 2024-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710901137.8A Active CN107642778B (en) | 2017-09-28 | 2017-09-28 | Fire cover and burner |
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| CN (1) | CN107642778B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443883B (en) * | 2018-04-08 | 2024-03-08 | 广东美的厨房电器制造有限公司 | Fire cover, burner and gas cooker |
| CN109000254B (en) * | 2018-09-04 | 2023-09-08 | 佛山市顺德区美的洗涤电器制造有限公司 | Gas-distributing disc structure, burner and gas stove |
| CN111256131B (en) * | 2018-11-30 | 2021-11-02 | 宁波方太厨具有限公司 | Fire cover for gas stove |
| CN112146092B (en) * | 2019-06-27 | 2021-08-20 | 宁波方太厨具有限公司 | Stove burner |
| CN110345479A (en) * | 2019-07-12 | 2019-10-18 | 宁波方太厨具有限公司 | Fire cover for kitchen range |
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|---|---|
| CN107642778A (en) | 2018-01-30 |
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