CN117889461A

CN117889461A - Smokeless multi-fuel portable stove with reversible cooking accessory

Info

Publication number: CN117889461A
Application number: CN202310017372.4A
Authority: CN
Inventors: 科内尔·S·班纳
Original assignee: Salary Fuel Co ltd
Current assignee: Salary Fuel Co ltd
Priority date: 2022-10-14
Filing date: 2023-01-06
Publication date: 2024-04-16
Also published as: US20240125478A1; WO2024081880A1

Abstract

The invention provides a portable stove. The stove includes a body having: an outer wall; a base having a collapsible leg attached thereto; and a top having an opening to which a reversible cooking accessory can be attached, the cooking accessory having an outward orientation and an inward orientation. Inside the wall of the stove body are an electronics housing, an electric fan with adjustable speed above the electronics housing, a shield above the electric fan, a detachable ash tray above the shield, and a combustion chamber with a grate above the ash tray. The cooking accessory further includes a mounting ring and a collapsible arm connected by a collar. The collar protrudes upwardly from the stove in the outward orientation and into the stove in the inward orientation. The mounting ring has a rounded edge. Each foldable arm has a support side with a claw catch and an angled top end.

Description

Smokeless multi-fuel portable stove with reversible cooking accessory

Technical Field

The present disclosure relates generally to portable cooktops and, more particularly, to smokeless multi-fuel portable cooktops with reversible cooking accessories.

Background

It is a fundamental human need to be able to prepare food and to boil water in a safe and easy way. This need requires that the stove permits the use of various fuel sources to cook and prepare food in a more flexible manner in a variety of environments.

Disclosure of Invention

A problem with many stoves that can accommodate a variety of cooking vessels and that can be used indoors and outdoors is that they can be limited to specific fuels, which can be expensive or difficult to transport. On the other hand, where it is capable of containing a temporary fuel source (e.g., shoots, leaves, sticks, wood particles, etc.), it may not generate enough heat to function properly, or it may generate a significant amount of smoke that is detrimental to both the health of the user and the nutritional value of the food being cooked.

To address these and other shortcomings, various embodiments of the present disclosure provide a smokeless multi-fuel portable stove with a reversible cooking structure.

Drawings

Fig. 1-2 are perspective views of a smokeless multi-fuel portable stove in accordance with embodiments of the present technology.

Fig. 3 is a cross-sectional view of a smokeless multi-fuel portable stove in accordance with an embodiment of the present technique.

Fig. 4 is an exploded view of a smokeless multi-fuel portable stove in accordance with an embodiment of the present technology.

Fig. 5-6 are detailed views of a reversible cooking accessory for a smokeless multi-fuel portable stove in accordance with embodiments of the present technique.

Fig. 7 is a detailed perspective view of a mounting ring in accordance with an embodiment of the present technique.

Detailed Description

Fig. 1 illustrates an example of a smokeless multi-fuel portable stove 100 having a reversible cooking accessory 104, in accordance with an embodiment of the present technique. The stove 100 comprises a body 101 having a top and a bottom, and foldable legs 102 attached to the bottom. The stove body 101 may have a rectangular cross-section to make the stove 100 more convenient to store. The body 101 further includes an outer wall having a vent 115, which vent 115 may allow for air intake for a fan illustrated in the following figures. Each collapsible leg 102 has an extended position as illustrated in fig. 1. With the collapsible leg 102 in the extended position, the bottom of the body 101 has a gap 103 separating it from the surface on which the stove stands. This gap 103 may be between five and twenty percent of the height of the stove body and may allow oxygen to enter the fan while also preventing foreign matter (e.g., dust, ash, grit, etc.) from entering the fan. A reversible cooking accessory 104 may be attached to an opening at the top of the stove body 101. Reversible cooking accessory 104 has collar 105 and foldable arms 106 connected to collar 105. The reversible cooking accessory may be attached to an opening at the top of the stove body 101 in a first position such that it has an outward orientation, as illustrated in fig. 1, with collar 105 protruding upward from the stove top and foldable arms extending away from the opening so as to support a wider cooking container (e.g., pan, basin, wok, bowl, kettle, pan, etc.) than the collar. In addition, the collar may have ventilation holes to assist in air flow.

Fig. 2 illustrates an example of a smokeless multi-fuel portable stove 200 having a reversible cooking accessory in accordance with an embodiment of the present technique. In this example, the stove legs 202 are in a folded position, creating a shorter profile (e.g., by reducing the gap between the bottom of the body 201 and the surface on which the stove stands), and enabling more convenient storage of the portable stove 200. Additionally, reversible cooking accessory 204 may be attached to an opening at the top of stove body 201 in a second position such that it has an inward orientation, as illustrated in fig. 2. In this inward orientation, the collar protrudes into the stove body and the foldable arms fold within the circumference of the stove top opening such that the arms occupy space within the collar. This orientation may further reduce the profile of the stove 200 and aid storage, or enable the arm to support a cooking container (e.g., cup, mug, bottle, cylinder, etc.) that is narrower than the collar. In this orientation, the time to boil water can be greatly reduced. Details of the reversible cooking accessory are illustrated and described with reference to the subsequent figures.

Fig. 3 is a cross-sectional view of a smokeless multi-fuel portable stove 300 having a reversible cooking accessory in accordance with an embodiment of the present technique. Within the stove body 301 is an electronics housing 307 located at the bottom of the stove body. Above the electronics 307 is an electric fan 308 with an electrical connection to the electrical circuitry of the electronics 307, which controls the speed of the fan. The circuit may include a rheostat having a user interface positioned on an outer wall of the stove body. A shield 309 is located above the fan 308, and a removable ash tray 310 is positioned above the shield 309. Above the ash tray is a combustion chamber 311 with a grate 312 that allows ash to fall into the ash tray 310, allowing the fire to continue burning with improved efficiency as fuel is consumed. The ash pan 310 may also function as a firebox in which fires (e.g., liquids, gels, volcanic rocks (volcanic rock), paraffin, granular fires, cubes (cubes), grass, cotton balls, fire, etc.) may be ignited in order to burn fuel placed on the grate 312. The firebox may have its own oxygen apertures (e.g., in one or more of its sidewalls, as illustrated in fig. 3), which may allow the fire to begin with fewer fires within the firebox in the combustion chamber 311. These holes may improve the supply of oxygen to the flame to assist in the initiation of the fire and to provide adequate fuel consumption.

The electronics housing 307 may include an external power connector (e.g., A DC barrel port, USB-C port, type-A port, type-B port, mini (mini) port, micro (micro) port, USB 3.X port, high current or sleep charge (sleep-and-charge port) port, or high retention connector (high-retention connector), etc.), A battery compartment (e.g., for holding one or more user-replaceable and/or rechargeable batteries), and an external hatch configured to provide access to the battery compartment through the bottom of the stove. In addition, the external power connector may be configured to draw power for an electric fan of the stove from a power source connected to the input port and/or to recharge a battery in the battery compartment, or to provide power to an output port of an electrical component connected to the output port. In some embodiments, a single port may provide both input and output features (e.g., with appropriate circuitry for detecting the voltage and/or current of the connected device), while in other embodiments dedicated and separate input and output ports may be supplied.

The shield 309 may have a conical shape configured to create a vortex airflow within the stove body (with air from the fan). This air flow allows the stove to cook food or to boil water while burning fuel (e.g., wood chip particles, twigs, branches, leaves, any biomass material, etc.) with a relatively low specific energy, thereby providing a thermally uniform fire at low cost. Of course, the stove 300 may also use canned fuel (CANNED HEAT) as fuel, so the stove 300 may be operated indoors or under a shelter.

Between the shield and the ash tray is a space to optionally provide insulation to protect the electronic components at the bottom of the chamber from the heat of the upper combustion chamber. In addition to this insulating property, the space may also provide positive pressure to force air up around the combustion chamber and thereby create ventilation that may increase the cooking temperature of the stove.

Fig. 4 is an exploded view of a smokeless multi-fuel portable stove 400 having a reversible cooking accessory in accordance with an embodiment of the present technique. From this view, the inner wall 413 of the combustion chamber is visible, which will contain the fuel to be combusted. This inner wall has ventilation holes allowing air exchange with the interior of the stove body. The stove body may further comprise an intermediate wall 414 between an outer wall 415 of the body and an inner wall 413 of the combustion chamber. The intermediate wall may also have ventilation holes. These holes may be strategically placed throughout the interior of the stove 400 so that a chimney effect occurs and higher temperatures are reached, as will be seen in a forging furnace, for example. In addition, the electric fan 408, the shield 409, the ash tray 410 and the combustion chamber may all be contained within this intermediate wall 414. This "triple wall construction" prevents the exterior and bottom of the stove body from overheating to the touch. Also visible is a mounting ring 416, which mounting ring 416 is the portion of the cooking accessory that allows it to be removably attached to an opening at the top of the portable stove 400. Collar 405 may be connected to mounting ring 416 and to foldable arm 406. In addition, this range 400 may include an on/off indicator light that may be used to indicate to a user whether the electric fan is energized, whether the electric fan is charged from an external source, whether the portable range is supplying power to an external electrical component, and so on. The ash tray 410 may have a handle accessible from the outer wall 415 of the stove 400 that will enable a user to extract the ash tray 410 from the stove 400 and properly discard ash that has been collected therein.

Fig. 5 is a detailed view of a reversible cooking accessory 504 in an inward orientation in accordance with an embodiment of the present technique. From this view, which is directed inward, it is apparent that the reversible cooking accessory 504 has a foldable arm 506, the foldable arm 506 having an angled top 517. In the inward orientation, the angled tips 517 are coplanar with one another and are thus configured to act as coplanar supports for the cooking container that are narrower than the collar 505 of the reversible cooking accessory 504 when in the inward orientation. In addition, when oriented inwardly, the reversible cooking accessory 504, when supported by the collapsible arms 506, has a gap from the bottom of the combustion chamber to the bottom of the narrow cooking container that measures between one and one-half inches. This gap maximizes heat when using canned fuel for indoor use.

The angled top ends 517 of the foldable arms 506 may each have an angle between forty degrees and eighty degrees, as measured from a back side opposite the support side with the claw catch. This angle may be designed to allow the top end 517 to form a surface coplanar with the bottom of the narrower cooking container and to assist in supporting the narrower container when the arms are folded into their inward position.

Fig. 6 is a detailed view of a reversible cooking accessory 604 in an outward orientation in accordance with an embodiment of the present technique. From this view, which is directed outwardly, it is apparent that the foldable arms 606 of the reversible cooking accessory 604 each have a support side 618 with a claw catch. These support sides 618 with the clasps are configured to contact the bottom of a wider cooking container (e.g., pan, bowl, wok, etc.), such that the clasps are configured to assist in holding the wider container over the stove and prevent lateral displacement thereof.

Fig. 7 is a detailed perspective view of a mounting ring 716 in accordance with an embodiment of the present technique. From this view, it is apparent that the mounting ring 716 has one or more notches 719 and a rounded edge 720. Each notch 719 allows the ring 716 to be secured to a vertical retaining member (e.g., screw, post, rivet, etc.) at the opening of the stove body. The rounded edge 720 is configured to create a downward air flow and redirect the fumes back into the stove body. This rounded edge may force the exhaust gas downward for secondary combustion, which generates higher heat with less fuel, while increasing the air pressure within the stove to also eliminate smoke. To produce this effect, the rounded edge 720 may have an angle between twenty and forty degrees relative to the top.

As used herein (including in the claims), an "or" as used in an item list (e.g., an item list starting with a phrase such as "at least one of" or "one or more of" etc.) indicates an inclusive list, such that a list of at least one of, e.g., A, B or C means a or B or C or AB or AC or BC or ABC (i.e., a and B and C). Furthermore, as used herein, the phrase "based on" should not be understood to refer to a set of closed conditions. For example, an exemplary step described as "based on condition a" may be based on both condition a and condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase "based on" should be interpreted in the same manner as the phrase "based at least in part on".

As used herein, the terms "vertical," "cross," "upper," "lower," "above," and "below" may refer to the relative directions or positions of features in a semiconductor device in view of the orientation shown in the figures. For example, "upper" or "uppermost" may refer to a feature that is located closer to the top of the page than another feature. However, these terms should be broadly construed to include semiconductor devices having other orientations, such as inverted or tilted orientations, wherein top/bottom, above/below, up/down, and left/right sides are interchangeable depending on the orientation.

It should be noted that the methods described above describe possible embodiments, and that the operations and steps may be rearranged or otherwise modified, and that other embodiments are possible. Furthermore, embodiments from two or more of the methods may be combined.

From the foregoing, it will be appreciated that specific embodiments of the invention have been described herein for purposes of illustration, but that various modifications may be made without deviating from the scope of the invention. Rather, in the foregoing description, numerous specific details are discussed in order to provide a thorough and informative description of embodiments of the present technology. One skilled in the relevant art will recognize, however, that the disclosure may be practiced without one or more of the specific details. In other instances, well-known structures or operations normally associated with memory systems and devices are not shown or described in detail to avoid obscuring other aspects of the technology. In general, it should be understood that various other devices, systems, and methods besides those specific embodiments disclosed herein may be within the scope of the present technology.

Claims

1. A portable stove, comprising:

A body, comprising:

An outer wall having a vent hole,

The bottom part of the bottom part is provided with a plurality of grooves,

A collapsible leg attached to the bottom,

A top having an opening;

a reversible cooking accessory having an outward orientation and an inward orientation, the reversible cooking accessory comprising:

A collar projecting upwardly from the stove top in the outward orientation to support a cooking container wider than the collar and projecting into the stove body in the inward orientation for storing and supporting a cooking container narrower than the collar,

A mounting ring for removably attaching the accessory to the opening at the top of the stove body, the ring having a rounded edge for generating a downward air flow and redirecting smoke back into the stove body, and

A foldable arm having a support side with a claw and an angled top end, the arm extending away from the opening in the outward orientation such that the support side is configured to contact a bottom of the wider cooking container such that the claw is configured to assist in holding the wider container over the stove, and the arm being folded in the inward orientation within a circumference of the stove top opening such that the arm occupies space within the collar and the angled top end of the arm is coplanar with the bottom of the narrower cooking container and configured to act as a support for the bottom of the narrower cooking container,

Wherein the collar connects the arm to the mounting ring;

an electronics housing located inside the stove body and at the bottom, the electronics housing comprising:

An external power connector is provided with a connector for the external power,

Battery case, and

An external hatch configured to provide access to the battery compartment through the bottom of the stove;

An electric fan above the electronics housing, the fan comprising:

An electrical connection connected to a circuit that controls the speed of the fan;

a shield above the fan;

a removable ash tray over the shield;

a combustion chamber above the ash tray, the combustion chamber comprising:

a grate allowing ash to fall into the ash tray, and

An inner wall having a vent hole;

Wherein the electric fan, the shield, the ash tray, the fire box, and the combustion chamber are inside the wall of the stove body.

2. The stove of claim 1, wherein the stove body has a rectangular cross-section.

3. The stove of claim 1, wherein each of the collapsible legs has a collapsed position and an extended position, and in the extended position the legs create a gap below the stove bottom of between five and twenty percent of the height of the stove body.

4. The stove of claim 1, wherein the collar has a vent.

5. The stove of claim 1, wherein the shield has a conical shape configured to create a swirling airflow within the stove body.

6. The stove of claim 1, wherein the circuitry that controls the speed of the fan includes a rheostat having a user interface positioned at the outer wall of the stove body.

7. The stove of claim 1, wherein the external power connector includes a USB-C port.

8. The stove of claim 1, wherein the external power connector includes the input port configured to draw power from a power source connected to the input port to an electric fan of the stove, and the output port configured to provide power to an electrical component connected to the output port.

9. The stove of claim 1, wherein the stove body further comprises an intermediate wall between the outer wall of the body and the inner wall of the combustion chamber, the intermediate wall having a vent, and wherein the electric fan, the shield, the ash tray, and the combustion chamber are contained within the intermediate wall of the stove body.

10. The stove of claim 1, wherein the stove has an on/off indicator light.

11. The stove of claim 1, wherein the ash pan has a handle accessible on the outer wall of the stove.

12. The stove of claim 1, wherein the angled tips of the foldable arms each have an angle between forty and eighty degrees, as measured from a back side opposite the support side with a claw, designed to allow the tips to form a surface coplanar with the bottom of the narrower cooking container and to assist in supporting the narrower cooking container when the arms are folded into the inward position.

13. The range of claim 1, wherein the inward orientation of the reversible cooking accessory has a gap from the bottom of the combustion chamber to a bottom of a cooking container supported by the collapsible arm, the gap measured between one and one-half inches.

14. The stove of claim 1, wherein the mounting ring has a recess to allow the ring to be secured to a vertical retaining element at the opening of the stove body.

15. The stove of claim 1, wherein the rounded edge has an angle between twenty and forty degrees relative to the top.

16. A portable stove, comprising:

A housing, comprising:

The bottom part of the bottom part is provided with a plurality of grooves,

A collapsible leg attached to the bottom,

A top portion having an opening,

An outer wall having a vent hole,

An intermediate wall having a vent hole;

An electronics housing located at an interior of the intermediate wall and at the bottom of the housing, the electronics housing comprising:

the electrical power connector is provided with a plurality of electrical connectors,

Battery case, and

A hatch configured to provide access to the battery compartment through the bottom of the stove;

a fan above the housing, the fan comprising:

Adjustable speed, and

a conical shield above the fan;

A detachable fire box above the shield, the detachable fire box configured to hold fire material;

a combustion chamber above the firebox, the combustion chamber comprising a grate configured to hold fuel and an inner wall having ventilation holes; and

A separable holder above the combustion chamber having a cup orientation and a pan orientation, the separable holder comprising:

A collar having a vent hole, the collar protruding upwardly from the stove top in the pan orientation and protruding into the stove outer housing in the cup orientation,

A ring for attaching the holder to the stove top in the cup orientation or the pan orientation, the ring having a recess and an edge angled over the opening of the stove top, and

Arms, each arm having a support side with a claw and an angled top end, the arms folding outwardly from the collar in the pan orientation such that the support side with a claw is upward, and the arms folding into the collar in the cup orientation such that the support side with a claw is downward,

Wherein the collar connects the arm to the ring,

Wherein the fan, shield and firebox are located inside the intermediate wall of the housing.

17. The stove of claim 16, wherein each of the collapsible legs has a collapsed position and an extended position, and in the extended position the legs create a gap below the stove bottom of between five and twenty percent of the height of the stove outer housing.

18. The range of claim 16, wherein the angled top end of each arm has an angle between forty and eighty degrees, as measured from a back side opposite the support side with a claw, the angle designed to allow the top end to form a surface coplanar with the bottom of the narrower cooking container and to assist in supporting the narrower cooking container when the arm is folded into the cup position.

19. The stove of claim 16, wherein the edge of the ring has an angle between twenty and forty degrees relative to the top.

20. The stove of claim 16, in which the power connector includes the input port configured to draw power from a power source connected to the input port to a fan of the stove, and the output port configured to provide power to an electrical component connected to the output port.