Energy gathering cover and gas stove

Abstract

The energy gathering cover comprises a cover body, an annular cavity is formed in the center of the cover body, and a plurality of air supplementing channels which extend in the radial direction and are used for supplementing secondary air are formed in the bottom of the cover body; an air inlet of the air supply channel is positioned on the outer side of the bottom of the cover body for external air to flow in; an air outlet of the air supply channel is located in the inner side of the bottom of the cover body and communicates with the annular cavity. Therefore, a channel is provided for supplementing air while heat is stored, and the combustion efficiency is improved.

Description

[Technical field]

[0001] The present application relates to the field of stoves, and in particular to an energy-gathering hood and a gas stove. [Background technology]

[0002] Gas stoves are commonly used burners in households. In addition to heating the pots and pans placed on them, the heat generated by the gas stove also heats the air around the gas stove. The heated air can flow freely, thus taking away the heat, greatly reducing the thermal efficiency of the gas stove.

[0003] Some gas stoves will set a focusing hood around the burner to form a physical barrier between the flame and the outside air, thereby reducing the outward flow of air between the inner side of the focusing hood and the flame, which can improve the thermal efficiency of the gas stove. However, due to the obstruction of the focusing ring, some fuels are difficult to get enough air during the combustion process, which can easily cause incomplete combustion of the fuel in the gas stove and high smoke from the gas stove.

[0004] Therefore, it is necessary to provide a kind of energy-gathering hood structure which can both preserve heat and supplement sufficient air for combustion.

[0005] Unless there is sufficient evidence to support it, the prior art described herein does not mean that the prior art is known to ordinary technicians in the field involved in this application before the filing date of this application. [Summary of the invention]

[0006] One purpose of the embodiments of the present application is to provide an improved energy gathering hood in view of at least one of the above technical problems and / or other possible technical problems not mentioned in the present application.

[0007] An embodiment of the present application provides an energy-gathering hood, including a hood body, a ring-shaped cavity formed in the center of the hood body, and a plurality of air supply channels extending radially for supplying secondary air are provided at the bottom of the hood body; an air inlet of the air supply channel is located on the outer side of the bottom of the hood body for the inflow of external air; an air outlet of the air supply channel is located on the inner side of the bottom of the hood body and is connected to the ring-shaped cavity.

[0008] In this way, heat is preserved while providing a channel for supplementary air, thereby improving combustion efficiency.

[0009] In one or some embodiments, the air supplement channel is at least partially formed by the bottom of the cover body being concave upward.

[0010] In one or some embodiments, the air supplement channel is inclined upward from the outer side of the bottom of the cover body to the inner side of the bottom along the radial direction. This structure of the air supplement channel, which is low outside and high inside, keeps the heat in the cover body to the greatest extent and helps to guide the supplementary air flow to the outer ring fire outlet hole.

[0011] In one or some embodiments, the radial cross section of the air supplement channel is semi-elliptical or approximately semi-elliptical; and the major axis and minor axis of the radial cross section extend in the horizontal direction and the vertical direction respectively. In this way, while ensuring a certain amount of air supplement, the top of the air supplement channel can be lower, which helps to reduce heat loss.

[0012] In one or some embodiments, the air supplement channel further comprises a bottom wall arranged corresponding to the concave portion of the bottom of the cover body; the air supplement channel is surrounded by the bottom wall and the concave portion of the bottom of the cover body. Through the design in this embodiment, the air supplement channel forms a complete circumference in its length direction, which helps to better guide the supplementary air to the fire outlet.

[0013] In one or some embodiments, the radial cross-section of the gas supplement channel is elliptical or approximately elliptical; and the major axis and the minor axis of the radial cross-section extend in the horizontal direction and the vertical direction respectively.

[0014] In one or some embodiments, the bottom wall and the cover body are integrally formed.

[0015] In one or some embodiments, the air supplement channels are evenly distributed along the circumference of the mask body.

[0016] An embodiment of the present application provides a gas stove with an energy-gathering hood as described in any of the above embodiments, including a panel and a burner, wherein the hood body is arranged on the panel and surrounds the burner, and the burner includes: an inner ring fire cover; an outer ring fire cover, located at the periphery of the inner ring fire cover; outer fire holes, which are arranged on the outer ring wall of the outer ring fire cover at intervals along the circumferential direction; and the air outlet is connected to the outer fire hole area.

[0017] In one or some embodiments, the radial distance between the air outlet and the outer fire hole is 10-20 mm.

[0018] It should be noted here that the directional expressions appearing in this application, unless otherwise specified, are based on the usual usage status of the gas stove.

[0019] It should be pointed out here that the “first” and “second” appearing in this specification are only used for descriptive purposes and are not used to indicate relative importance; moreover, they are not a definition of the quantity of the features they define; in addition, they are not a definition of the logical or sequential relationship of the features they define.

[0020] The above invention content of the present application is not intended to describe all possible implementations of the present application. Throughout the application, guidance is provided by listing examples in many places, and these examples can be used in various possible combinations.

Brief Description of the Drawings

[0021] The following drawings are only used to illustrate and explain the present application, and do not limit the scope of the present application, wherein:

[0022] Figure 1 It is a structural cross-sectional view of an energy-gathering cover embodiment of the present application;

[0023] Figure 2 This is a structural stereogram of an energy-gathering cover embodiment of the present application;

[0024] Figure 3 It is a structural schematic diagram of an energy-gathering hood and a gas stove embodiment of the present application;

[0025] Figure 4 is a structural cross-sectional view of another energy-gathering cover embodiment of the present application;

[0026] Figure 5 is a structural cross-sectional view of another energy-gathering cover embodiment of the present application;

[0027] Figure 6 It is a structural stereogram of another energy-gathering cover embodiment of the present application.

[0028] Reference numerals:

[0029] 1-hood body, 2-air supply channel, 21-air inlet, 22-air outlet, 23-bottom wall, 3-panel, 4-outer ring fire cover, 41-outer fire hole. [Specific implementation method]

[0030] In order to make the purpose, scheme and beneficial effects of the present application more clear, the present application is further described below in conjunction with the accompanying drawings and preferred embodiments.

[0031] An embodiment of an energy-gathering cover proposed in the present application is as follows: Figure 1 and Figure 2 As shown, it includes a cover body 1, an annular cavity is formed in the center of the cover body 1, and a plurality of air supply channels 2 extending radially for supplying secondary air are provided at the bottom of the cover body 1; an air inlet 21 of the air supply channel 2 is located on the outside of the bottom of the cover body 1 for the inflow of external air; an air outlet 22 of the air supply channel 2 is located on the inside of the bottom of the cover body 1 and is connected to the annular cavity.

[0032] Specifically, Figure 3 As shown, the energy-gathering hood is applied to a gas stove, which includes a panel 3 and a burner 4. The hood body 1 is arranged on the panel 3 and surrounds the burner. The burner includes: an inner ring fire cover; an outer ring fire cover 4, which is located on the periphery of the inner ring fire cover; outer fire holes 41, which are arranged on the outer ring wall of the outer ring fire cover 4 at intervals along the circumferential direction; and the air outlet 22 is connected to the outer fire hole 41 area.

[0033] In the existing conventional design, in order to ensure sufficient combustion, a gap is usually left between the energy collecting hood and the panel 3 to allow air to pass through, but if the gap is too large, the heat collecting ability of the energy collecting hood will be weakened to a certain extent. In order to balance the maintenance of heat and the improvement of combustion efficiency, the present application adds a number of radially extending air supply channels 2 for supplementing secondary air at the bottom of the cover body 1 of the energy collecting hood. The setting of the air inlet 21 of the air supply channel 2 effectively increases the air intake area, or reduces the gap between the cover body 1 and the panel 3 when the air intake area remains unchanged, thereby providing a channel for supplementary air while preserving heat and improving combustion efficiency.

[0034] Further, the air supplement channel 2 is at least partially formed by the bottom of the cover body 1 being concave upward. In an optional embodiment, the cover body 1 includes a side wall and a bottom of the cover body, the air inlet 21 is opened on the side wall of the cover body 1 and serves as the starting point of the air supplement channel 2, and the bottom of the cover body 1 is concave upward to form the air supplement channel 2 and terminates at the inner edge of the bottom.

[0035] Furthermore, if Figure 4 As shown, the air supply channel 2 is radially inclined upward from the bottom outer side to the bottom inner side of the cover body 1. Usually, the outer fire hole 41 is higher than the bottom of the energy focusing ring. This structure of the air supply channel 2, which is low outside and high inside, keeps the heat in the cover body 1 to the greatest extent and helps guide the supplementary air flow to the outer fire hole 41.

[0036] A. First Implementation Method:

[0037] In one embodiment, Figure 1 As shown, the radial cross-section of the air supply channel 2 is semi-elliptical or approximately semi-elliptical, and the gap between the cover body 1 and the panel 3 is connected to the air supply channel 2, and they are used together to supply secondary air.

[0038] Furthermore, the major axis and minor axis of the radial cross section extend in the horizontal direction and the vertical direction respectively, so that, under the condition of a certain air intake area, the height of the air supply channel 2 can be lower, and the vertex of the air outlet 22 can be farther from the outer fire hole 41. The reason for this design is that the energy collecting cover is usually made of metal material, and the heat dissipation speed is fast. When the air outlet 22 is too close to the outer fire hole 41, it will absorb more heat and dissipate it to the outside. Therefore, this design ensures the air intake while taking into account the preservation of heat, achieving a win-win situation.

[0039] B. Second Implementation Method:

[0040] In one embodiment, Figure 5 and Figure 6As shown, the air supplement channel 2 further includes a bottom wall 23 corresponding to the concave portion of the bottom of the cover body 1; the air supplement channel is surrounded by the bottom wall 23 and the concave portion of the bottom of the cover body 1. In this way, the air supplement channel 2 forms a complete circumference in its length direction, which helps to better guide the supplementary air to the outer fire hole 41.

[0041] Furthermore, the radial cross section of the air supply channel 2 is elliptical or approximately elliptical, and the major axis and minor axis of the radial cross section extend in the horizontal direction and the vertical direction respectively. The intake air volume and heat are also taken into consideration, which will not be repeated here.

[0042] Furthermore, the bottom wall 23 is integrally formed with the cover body 1 to facilitate casting.

[0043] In an optional embodiment, the air supply channels 2 are evenly distributed along the circumference of the cover body 1. In this way, the flames in all directions are even and stable, which helps to improve the cooking effect.

[0044] In an optional embodiment, the radial distance between the air outlet 22 and the outer fire hole 41 is 10-20 mm, and this distance takes into account both heat retention and combustion efficiency.

[0045] The components of different embodiments may be combined with each other in any feasible manner to achieve the purpose of this application.

[0046] It should be noted that the present application should not be understood as being limited to the above-described implementation methods, but should be understood as covering all possible implementations determined by the claims of the present application in combination with the disclosure of the specification. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application shall fall within the protection scope of the technical solution of the present application.

Claims

1. An energy-gathering cover, comprising a cover body, wherein an annular cavity is formed in the center of the cover body, and characterized in that: The bottom of the cover body is provided with a plurality of air supply channels extending radially for supplying secondary air; The air inlet of the air supply channel is located at the bottom outer side of the cover body to allow external air to flow in; The air outlet of the air supplement channel is located at the inner side of the bottom of the cover body and communicates with the annular cavity; The air supplement channel is at least partially formed by the bottom of the cover body being concave upwards; The radial cross section of the air supplement channel is semi-elliptical or approximately semi-elliptical; and The major axis and minor axis of the radial cross section extend in the horizontal direction and the vertical direction, respectively.

2. The energy collecting cover according to claim 1, characterized in that: The air supplement channel is inclined upward along the radial direction from the outer side of the bottom of the cover body to the inner side of the bottom.

3. The energy collecting cover according to claim 1, characterized in that: The air supplement channel also includes a bottom wall arranged corresponding to the concave portion of the bottom of the cover body; The air supplement channel is formed by the bottom wall and the concave portion of the bottom of the cover body.

4. The energy collecting cover according to claim 3, characterized in that: The radial cross section of the air supplement channel is elliptical or approximately elliptical; and The major axis and minor axis of the radial cross section extend in the horizontal direction and the vertical direction, respectively.

5. The energy collecting cover according to claim 3, characterized in that: The bottom wall and the cover body are integrally formed.

6. The energy concentrating cover according to claim 1, characterized in that: The air supplement channels are evenly distributed along the circumference of the cover body.

7. A gas stove using the energy-gathering cover according to any one of claims 1 to 6, comprising a panel and a burner, wherein the cover is arranged on the panel and surrounds the burner, and the burner comprises: Inner ring fire cover; An outer ring fire cover is located outside the inner ring fire cover; External fire holes are arranged on the outer ring wall of the outer ring fire cover at intervals along the circumferential direction; Features: The air outlet is in communication with the outer fire hole region.

8. The gas stove according to claim 7, characterized in that: The radial distance between the air outlet and the outer fire hole is 10-20 mm.

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