A heat energy inner circulation energy gathering cover on an electric steamer and the electric steamer

Abstract

The application provides a heat energy internal circulation energy collecting cover on an electric steamer and the electric steamer, aiming at solving the problem that the electric steamer in the prior art takes a long time from starting heating to generating steam and consumes a large amount of energy due to a large amount of heated water. The heat energy internal circulation energy collecting cover on the electric steamer comprises an outer cover and an inner valve arranged in the outer cover, a steam cavity is formed between the inner valve and the outer cover at the upper part, and an excessive water cavity is formed at the lower part; the inner valve comprises a steam groove, a water guide channel and a heating cavity from top to bottom in sequence, and the water guide channel is communicated with the steam groove and the heating cavity; the outer cover is provided with a first steam outlet hole communicated with the steam cavity, the steam groove is provided with a first steam outlet hole communicated with the steam cavity and the steam groove and an overflow hole communicated with the steam groove and the excessive water cavity; and the inner valve is provided with a second water inlet hole communicated with the excessive water cavity and the heating cavity. The application can quickly generate steam for heating food.

Description

Technical Field

[0001] This invention belongs to the field of electric steamer technology, specifically relating to a heat energy internal circulation energy-concentrating cover for an electric steamer and the electric steamer itself. Background Technology

[0002] An electric steamer works by heating water in a pot to turn it into high-temperature steam, which is then used to steam food placed inside. Because electric steamers can heat food evenly, preventing it from being undercooked, their use is becoming increasingly widespread.

[0003] Currently, electric steamers typically heat all the water stored in the pot. Due to the large amount of water being heated, it takes a long time for the water to start heating and generate a large amount of steam. Furthermore, because of the large amount of water being heated and boiled, the energy consumption is also very high. Summary of the Invention

[0004] This invention provides a heat energy internal circulation energy-concentrating cover for an electric steamer and an electric steamer, aiming to solve the problem that existing electric steamers consume a lot of energy and have a long time to generate steam from the start of heating due to the large amount of water required.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0006] In a first aspect, the present invention provides a thermal energy internal circulation energy-concentrating cover for an electric steamer, comprising an outer cover and an inner valve disposed within the outer cover, wherein a steam chamber is formed at the upper part and a transition water chamber is formed at the lower part between the inner valve and the outer cover, and the steam chamber and the transition water chamber are in communication; the outer cover is provided with a first water inlet hole for injecting water into the transition water chamber.

[0007] The inner valve includes, from top to bottom, a steam tank, a water guide channel, and a heating chamber, with the water guide channel connecting the steam tank and the heating chamber.

[0008] The outer cover is provided with a first steam outlet that connects to the steam chamber; the steam tank is provided with a second steam outlet that connects the steam chamber and the steam tank, and an overflow hole that connects the steam tank and the transition water chamber; the inner valve is provided with a second water inlet that connects the transition water chamber and the heating chamber.

[0009] A further embodiment: The steam tank includes a steam hood and an overflow tank that is larger at the top and smaller at the bottom. The steam hood is located on the upper side of the opening of the overflow tank; the second steam outlet is located on the steam hood, and the overflow outlet is located on the overflow tank.

[0010] Based on the above technical solution, the steam hood is used to release the steam generated by the vaporization of heated boiling water; the overflow hole is set on the overflow tank, so that when the water inside the inner valve is heated to boiling, the boiling water will flow out from the overflow hole on the overflow tank and enter the transition water chamber. The boiling water flowing out from the overflow hole will circulate into the transition water chamber, which can raise the temperature of the water in the transition water chamber to achieve preheating, thereby realizing the internal circulation utilization of the heat energy of the boiling water and saving energy consumption.

[0011] A further embodiment: The steam hood is a circular hood with a closed top, and there are several second steam outlets, which are evenly arranged around the side of the steam hood.

[0012] Based on the above technical solution, the steam hood is set as a circular hood with the top closed, and several second steam outlets are evenly arranged around the side of the steam hood, so that the water vapor inside the steam hood can be evenly dispersed to the surroundings.

[0013] A further solution: The overflow trough is a funnel shape with a larger upper end and a smaller lower end. A partition is provided between the overflow trough and the outer cover. The partition is located between the overflow hole and the second steam outlet. The partition divides the space between the inner valve and the outer cover into an upper steam chamber and a lower transition water chamber.

[0014] Based on the above technical solution, a partition is set between the overflow tank and the outer cover to divide the space between the inner valve and the outer cover into an upper steam chamber and a lower transition water chamber; at the same time, the partition separates the overflow hole and the second steam outlet, so that most of the water vapor in the steam cover will be emitted upward through the steam chamber, and a small part will enter the lower transition water chamber.

[0015] A further embodiment: an annular plate is provided between the outer cover and the steam cover, and the first steam outlet is disposed on the annular plate; the steam chamber is located between the annular plate and the partition.

[0016] Based on the above technical solution, a steam chamber is formed between the annular plate, the partition plate, the inner surface of the outer cover, and the outer surface of the steam hood.

[0017] A further solution: The bottom of the outer cover is provided with an annular seat, and the first water inlet hole is disposed on the annular seat.

[0018] Based on the above technical solution, the first water inlet is set on the annular seat at the bottom of the outer cover, which can make the water level inside and outside the cover the same, so that the water in the external water storage area can be quickly replenished into the transition water cavity through the first water inlet.

[0019] A further embodiment: The heating chamber is a flat, funnel-shaped structure with a small upper end and a large lower end, and a valve seat is provided at the bottom of the heating chamber, with the second water inlet hole located on the valve seat.

[0020] Based on the above technical solution, the heating chamber is a flat, funnel-shaped chamber with a small upper end and a large lower end, which allows it to hold a small amount of water, facilitating rapid boiling and steam generation.

[0021] A further embodiment: the water guiding channel is a water guiding pipe, the upper end of the water guiding pipe is connected to the lower end of the steam tank, and the lower end of the water guiding pipe is connected to the upper end of the heating cover.

[0022] Based on the above technical solution, the water guide channel is set as a water guide pipe in order to keep a small amount of water in the inner valve, so as to facilitate rapid boiling and steam generation.

[0023] In a second aspect, the present invention provides an electric steamer, including a steamer lid, a steamer body, a steam rack, a heating plate, and a heat energy internal circulation energy-concentrating cover on the electric steamer according to the first aspect. The steamer lid is disposed on the upper side of the steamer body, and the steam rack is disposed inside the steamer body and above the outer cover. A water storage cavity is provided between the outer cover and the inner wall of the steamer body. A first water inlet connects the water storage cavity and the transition water cavity.

[0024] The steam rack is provided with a third steam outlet, which is connected to the first steam outlet.

[0025] The heating plate is located on the main body of the steamer and at the bottom of the heating cavity.

[0026] Based on the above technical solution, a third steam outlet is provided on the steaming rack to connect with the first steam outlet and distribute steam onto the food on the steaming rack.

[0027] Thirdly, the present invention provides an electric steamer, including a steamer lid, a steamer body, a drip tray, a steaming rack, a heating plate, and a heat energy internal circulation energy-concentrating cover on an electric steamer according to the first aspect. The steamer lid is disposed on the upper side of the steamer body, and the drip tray is disposed inside the steamer body and above the outer cover.

[0028] A water storage cavity is provided between the outer cover and the inner wall of the steamer body; the first water inlet connects the water storage cavity and the transition water cavity;

[0029] The juice receiving tray is provided with a juice receiving groove, the steaming rack is located above the juice receiving groove and the edge of the steaming rack is set at the groove opening of the juice receiving groove, the juice receiving tray is provided with a return groove surrounding the outside of the groove opening of the juice receiving groove, and a juice return hole is provided between the return groove and the juice receiving groove to connect the juice receiving groove and the return groove; the juice receiving groove is provided with a juice receiving tray steam outlet that connects the juice receiving groove and the first steam outlet, and the juice receiving tray steam outlet is located above the bottom of the juice receiving groove;

[0030] The steam rack is provided with a fourth steam outlet that connects to the juice receiving tank;

[0031] The heating plate is located inside the main body of the steamer and at the bottom of the heating chamber.

[0032] Based on the above technical solution, a drip tray is set up to collect dripping juice from the steaming rack and water droplets after steam condensation; a juice return hole is set up so that when water droplets fall from the edge of the steaming rack into the return groove, they can flow into the drip collecting groove through the juice return hole.

[0033] The beneficial effects of this invention are as follows:

[0034] 1. The present invention forms a steam chamber in the upper part and a transition water chamber in the lower part between the inner valve and the outer cover. The inner valve includes a steam tank, a water guide channel and a heating chamber from top to bottom. When heating, only a small amount of water inside the heating chamber needs to be heated. Since the amount of water heated is small, the water can be quickly heated to boiling to generate steam, which can save the time of cooking food in the electric steamer.

[0035] 2. This invention provides an overflow hole on the steam tank that connects the steam tank and the transition water chamber. When the water inside the inner valve is heated to boiling, the water flows out from the overflow hole on the overflow tank and into the transition water chamber. The boiling water flowing out from the overflow hole circulates into the transition water chamber, which can raise the temperature of the water in the transition water chamber to achieve preheating. This enables the internal circulation of the heat energy of the boiling water, saving energy. When the water volume in the heating chamber decreases due to evaporation, the water in the transition water chamber can flow into the heating chamber through the second inlet hole.

[0036] 3. This invention provides a first steam outlet on the outer cover that connects to the steam chamber, and a second steam outlet on the steam tank that connects the steam chamber and the steam tank. The steam chamber is also connected to the transition water chamber. This allows the steam generated by heating the water in the inner valve to enter the steam chamber through the second steam outlet. Most of the steam in the steam chamber is released into the steam pot lid through the first steam outlet on the outer cover for cooking food. A small portion of the steam in the steam chamber forms water droplets that circulate into the transition water chamber below, realizing the recycling of the steam's thermal energy and thus achieving internal circulation of the steam's thermal energy, thereby saving energy consumption.

[0037] 4. The present invention has a first water inlet hole on the outer cover for injecting water into the transition water chamber. The first water inlet hole can connect to the water storage chamber outside the outer cover, so that when the water volume in the transition water chamber decreases, the water in the water storage chamber can flow into the transition water chamber.

[0038] 5. The water channel of the present invention is only used to connect the heating chamber and the steam tank, and the water volume inside is small. Therefore, the total amount of water that needs to be boiled is reduced during heating. Attached Figure Description

[0039] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is an exploded schematic diagram of a thermal energy internal circulation energy-concentrating cover and an electric steamer according to the present invention.

[0041] Figure 2 This is a cross-sectional schematic diagram of a heat energy internal circulation energy-concentrating cover and an electric steamer according to the present invention.

[0042] Figure 3 This is a schematic diagram of a heat energy internal circulation energy-concentrating cover and a steaming rack for an electric steamer according to the present invention.

[0043] Figure 4 This is a schematic diagram of a heat energy internal circulation energy-concentrating cover and an outer cover of an electric steamer according to the present invention.

[0044] Figure 5 This is a schematic diagram of the internal heat circulation energy-concentrating cover and the inner valve of an electric steamer according to the present invention.

[0045] Figure 6 This is an exploded schematic diagram of the heat energy internal circulation energy-concentrating cover on an electric steamer and the drip tray used in the electric steamer according to the present invention.

[0046] Figure 7 This is a cross-sectional schematic diagram of the heat energy internal circulation energy-concentrating cover on an electric steamer and the drip tray used in the electric steamer according to the present invention.

[0047] Figure 8 This is a schematic diagram of a heat energy internal circulation energy-concentrating cover and a juice receiving tray of an electric steamer according to the present invention.

[0048] Figure 9 This is a schematic diagram of the heat energy internal circulation energy-concentrating cover on an electric steamer, as well as the drip tray and steaming rack of the electric steamer according to the present invention.

[0049] Explanation of the labels in the diagram:

[0050] 1-Steamer lid; 11-Edge of steamer lid; 2-Steamer body; 21-Groove in steamer body; 3-Steamer rack; 31-Steamer rack cover; 32-Third steam outlet; 33-Fourth steam outlet; 34-Annular locking block; 4-Heating plate; 41-Upper surface of heating plate; 5-Outer cover; 511-Annular plate; 512-First steam outlet; 513-Annular seat; 514-First water inlet; 6-Inner valve; 611-Steam cover; 612-Second steam outlet; 613-Overflow trough; 614-Overflow hole; 615-Water guide pipe; 616-Water guide channel; 617-Heating cover; 618-Heating chamber; 619-Valve seat; 620-Second water inlet; 621-Baffle plate; 7-Steam chamber; 8-Transition water chamber; 9-Water storage chamber; 10-Juice receiving tray; 101-Steam outlet of juice receiving tray; 102-Annular groove; 103-Juice receiving trough; 104-Return trough; 105-Juice return hole; 106-Annular boss. Detailed Implementation

[0051] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the protection scope of the present invention.

[0052] Example 1

[0053] like Figures 1 to 5 As shown, this embodiment provides a thermal energy internal circulation energy-concentrating cover for an electric steamer, including an outer cover 5 and an inner valve 6 disposed inside the outer cover 5. A steam chamber 7 is formed in the upper part and a transition water chamber 8 is formed in the lower part between the inner valve 6 and the outer cover 5, and the steam chamber 7 and the transition water chamber 8 are in communication. The space between the inner valve 6 and the outer cover 5 forms a steam chamber 7 in the upper part and a transition water chamber 8 in the lower part. The outer cover 5 is provided with a first water inlet hole 514 for injecting water into the transition water chamber 8.

[0054] The inner valve 6 includes, from top to bottom, a steam tank, a water guide channel 616, and a heating chamber 618. The water guide channel 616 connects the steam tank and the heating chamber 618.

[0055] The outer cover 5 is provided with a first steam outlet 512 that connects to the steam chamber 7, the steam tank is provided with a second steam outlet 612 that connects the steam chamber 7 and the steam tank and an overflow hole 614 that connects the steam tank and the transition water chamber 8; the inner valve 6 is provided with a second water inlet 620 that connects the transition water chamber 8 and the heating chamber 618.

[0056] In this embodiment, as Figure 2 and Figure 5As shown, the steam tank includes a steam hood 611 and an overflow tank 613, which is larger at the top and smaller at the bottom. The steam hood 611 is located on the upper side of the opening of the overflow tank 613. The first steam outlet 612 is located on the steam hood 611, and the overflow hole 614 is located on the overflow tank 613. The steam hood 611 is used to release the steam from the vaporization of heated boiling water outward through the first steam outlet 612 into the steam chamber 7, and then release it outward through the first steam outlet 512 on the outer cover of the steam chamber 7. The overflow hole 614 is located on the overflow tank 613 and can control the water volume in the inner valve 6 to keep it at a small volume, which is conducive to rapid boiling. The overflow tank 613, which is larger at the top and smaller at the bottom, facilitates the rapid dissipation of water vapor.

[0057] The steam hood 611 and the overflow tank 613 can be fixedly connected or integrally formed.

[0058] As an optional embodiment of the steam hood 611, the steam hood 611 is a circular hood closed at the top, with a plurality of first steam outlet holes 612 evenly arranged around the side of the steam hood 611. The lower end of the steam hood 611 has an opening that directly communicates with the opening of the overflow tank 613. The first steam outlet holes 612 located on the side of the steam hood 611 can be configured as arc-shaped holes to facilitate steam dissipation. This allows the water vapor inside the steam hood 611 to be evenly dispersed in all directions.

[0059] As an optional embodiment of the overflow trough 613, the overflow trough 613 is funnel-shaped, wider at the top and narrower at the bottom. A partition 621 is provided between the overflow trough 613 and the outer cover. The partition 621 is located between the overflow hole 614 and the first steam outlet 612. The partition 621 divides the space between the inner valve 6 and the outer cover 5 into an upper steam chamber 7 and a lower transition water chamber 8. The partition 621 can be annular and can be integrally formed with the overflow trough 613 on the outer edge of the overflow trough 613. A channel for steam passage is provided between the outer edge of the partition 621 and the inner surface of the outer cover 5. This channel can be relatively small, so that most of the water vapor in the steam cover 611 will be emitted upward through the steam chamber 7, and a small portion will enter the lower transition water chamber 8.

[0060] In this embodiment, as Figure 2 , Figure 4 and Figure 5As shown, an annular plate 511 is provided between the outer cover 5 and the steam cover 611, and the first steam outlet 512 is disposed on the annular plate 511; the steam chamber 7 is located between the annular plate 511 and the partition plate 621. The annular plate 511 can be disposed on the upper inner edge of the outer cover 5, and it can be integrally formed with the outer cover 5. The steam chamber 7 is formed between the lower surface of the annular plate 511, the upper surface of the partition plate 621, the inner surface of the outer cover 5, and the outer surface of the steam cover 611. The transition water chamber 8 is formed between the lower surface of the partition plate 621, the upper surface of the heating cover 617, the inner surface of the outer cover 5, the overflow trough 613, and the outer surface of the water guide pipe. Several first steam outlets 512 can be provided and are evenly distributed on the annular plate 511. The annular plate 511 is sealed to the top of the steam cover 611.

[0061] In this embodiment, the bottom of the outer cover 5 is provided with an annular seat 513. The annular seat 513 can be configured as an annular protrusion surrounding the outer side of the bottom of the outer cover 5, and the first water inlet 514 is disposed on the annular seat 513. Several first water inlets 514 can be provided, evenly distributed on the annular seat 513. The first water inlets 514 are used to connect the transition water chamber 8 and the water storage area outside the outer cover 5, facilitating the replenishment of water from the water storage area to the transition water chamber 8 through the first water inlets 514. Simultaneously, the first water inlets 514 being located at the bottom of the outer cover 5 ensures that the water levels inside and outside remain consistent.

[0062] In this embodiment, as Figure 2 and Figure 5 As shown, to maintain a small water volume in the inner valve 6 for rapid boiling and steam generation, the heating chamber 618 is a flat, funnel-shaped chamber with a smaller upper end and a larger lower end. "Flat" means that the height of the funnel-shaped heating chamber is very small, thus the amount of water that can be stored in the heating chamber 618 is small, resulting in a short time from the start of heating to boiling. The heating chamber 618 can be formed by the space inside the heating cover 617. The heating cover is shaped as a flat funnel with a smaller upper end and a larger lower end. A valve seat 619 is provided at the bottom of the heating chamber 617, and the second water inlet 620 is disposed on the valve seat 619. The valve seat 619 can be annular, and several second water inlets 620 can be provided, evenly distributed on the valve seat 619. The second water inlets 620 are used to replenish the heating chamber 618 with water from the transition water chamber 8 when the water in the heating chamber 618 boils and generates steam, reducing the water volume.

[0063] In this embodiment, as a specific implementation of the water guiding channel 616, the water guiding channel 616 is a water guiding pipe 615. The upper end of the water guiding pipe 615 is connected to the lower end of the steam tank, and the lower end of the water guiding pipe 615 is connected to the upper end of the heating cover 617. The water guiding pipe 615 can also be integrally formed with the steam tank and the heating cover 617. The water guiding channel 616 is set as a water guiding pipe 615 to maintain a small water volume in the inner valve 6, facilitating rapid boiling and steam generation.

[0064] Example 2

[0065] Based on the above embodiments, such as Figures 1 to 5 As shown, this embodiment provides an electric steamer, including a steamer lid 1, a steamer body 2, a steam rack 3, a heating plate 4, and a heat energy internal circulation energy-concentrating cover on the electric steamer of one embodiment. The steamer lid 1 is disposed on the upper side of the steamer body 2, and the steam rack 3 is disposed inside the steamer body 2 and above the outer cover 5. A water storage cavity 9 is provided between the outer cover and the inner wall of the steamer body. The first water inlet hole connects the water storage cavity 9 and the transition water cavity 8.

[0066] The steamer lid 1 and the steamer body 2 are assembled into a whole. The edge of the steam rack 3 is engaged with the annular seat in the groove 21 of the steamer body, and the edge of the steamer lid rests against the outer edge of the steam rack. A space for cooking food is formed between the upper side of the steam rack 3 and the steamer lid 1; a space for steam generation is formed between the lower side of the steam rack 3 and the bottom of the steamer body 2.

[0067] The steam rack 3 is provided with a third steam outlet 32, which is connected to the first steam outlet 512. A circular steam rack cover 31 is located in the middle of the steam rack 3, positioned higher than the steam rack 3. Several third steam outlets 32 are provided on the side of the steam rack cover 31. The steam inside the cover is ultimately released into the steam pot through the third steam outlets 32 to heat the food inside.

[0068] In one preferred embodiment, a steaming rack cover 31 can be placed above the outer cover 5. In this case, the steam emitted from the first steam outlet on the outer cover can quickly be emitted onto the food on the steaming rack through the third steam outlet 32 ​​on the side of the steaming rack cover. Furthermore, a certain gap is provided between the lower surface of the upper cover of the steaming rack cover 31 and the upper end of the outer cover 5, and a cavity is formed within this gap. Both the third steam outlet and the first steam outlet are connected to this cavity, so that the steam emitted from the first steam outlet can reach the third steam outlet 32 ​​through this gap.

[0069] The heating plate 4 is located inside the main body 2 of the steamer and at the bottom of the heating chamber. The outer cover 5 and the inner valve 6 are located above the heating plate 4. The upper surface 41 of the heating plate is located at the bottom of the heating chamber 618. Thus, the heating plate 4 only needs to heat the core heating area of ​​the upper surface 41 of the heating plate to quickly generate steam.

[0070] Example 3

[0071] Based on Example 1, such as Figures 6 to 9 As shown, this embodiment provides an electric steamer, including a steamer lid 1, a steamer body 2, a drip tray 10, a steaming rack 3, a heating plate 4, and a heat energy internal circulation energy-concentrating cover on an electric steamer as described in Embodiment 1. The steamer lid 1 is disposed on the upper side of the steamer body 2, and the drip tray 10 is disposed inside the steamer body 2 and located above the outer cover 5.

[0072] The steamer lid 1 and the steamer body 2 are assembled into a single unit. The outer edge of the reflux groove of the drip tray is engaged with the annular retainer at the groove opening of the steamer body 21, and the edge of the steamer lid rests against the reflux groove. A space for cooking food is formed between the upper side of the steam rack 3 and the steamer lid 1; a space for steam generation is formed between the lower side of the steam rack 3 and the bottom of the steamer body 2.

[0073] A water storage cavity 9 is provided between the outer cover 5 and the inner wall of the steamer body 2; the first water inlet 514 connects the water storage cavity 9 and the transition water cavity 8.

[0074] The drip tray 10 is provided with a drip groove 103, and the steaming rack 3 is located above the drip groove 103 with its edge set at the opening of the drip groove 103.

[0075] Among them, such as Figure 8 and Figure 9 As shown, in one specific embodiment of connecting the steaming rack 3 and the drip tray 10, the edge of the steaming rack 3 is provided with an annular locking block 34, and the opening of the drip tray 103 is provided with an annular locking groove 102. By locking the annular locking block 34 into the annular locking groove 102, the steaming rack 3 is installed on the drip tray 10.

[0076] The juice receiving tray 10 is provided with a return groove 104 surrounding the outside of the opening of the juice receiving trough 103, and a juice return hole 105 connecting the juice receiving trough 103 and the return groove 104 is provided between the return groove 104 and the juice receiving trough 103.

[0077] Among them, such as Figure 8 and Figure 9As shown, in one specific embodiment of the reflux trough 104, the reflux trough 104 can be configured as an annular step shape that is lower than the opening of the juice receiving trough 103 and surrounds the outer surface of the juice receiving tray 10. The outer edge of the reflux trough 104 is provided with an annular baffle to prevent backflow. The juice in 104 flows out, so that when water droplets on the edge of the steaming rack 3 fall onto the reflux trough 104, they can only flow back into the juice receiving trough 103 along the juice return hole 105.

[0078] The juice receiving tank 103 is provided with a juice receiving plate steam outlet 101 that connects the juice receiving tank 103 and the first steam outlet 512, and the juice receiving plate steam outlet 101 is located above the bottom of the juice receiving tank 103.

[0079] Among them, such as Figure 6 , Figure 8 and Figure 9 As shown, in a preferred embodiment, a juice receiving tray 10 can be fitted onto an outer cover 5. A hollow annular protrusion 106 is provided inside the juice receiving groove 103. The annular protrusion 106 is fitted onto the outer cover 5, and a cavity is provided between the lower surface of the upper cover of the annular protrusion 106 and the upper end of the outer cover 5. This arrangement allows steam to quickly dissipate from the first steam outlet into the juice receiving groove, thereby quickly reaching the food. A steam outlet 101 for the juice receiving tray is located on the side of the annular protrusion 106. The height of the steam outlet 101 is higher than the bottom of the juice receiving groove 103 to prevent juice in the juice receiving groove 103 from flowing down to the energy-concentrating cover device below. Several steam outlets 101 can be provided, evenly arranged around the side of the annular protrusion 106. The steam outlet 101 of the juice receiving tray is connected to the cavity, and the first steam outlet is connected to the cavity. The steam emitted from the first steam outlet 512 can reach the steam outlet 101 of the juice receiving tray through the cavity, and then be emitted from the steam outlet 101 of the juice receiving tray into the juice receiving tank 103.

[0080] The steam rack 3 is provided with a fourth steam outlet 33 that connects to the juice receiving tank 103; several fourth steam outlets 33 can be provided and evenly distributed on the steam rack 3, so that the steam emitted through the first steam outlet 512 reaches the juice receiving tank 103 and is then emitted to the food through the fourth steam outlet 33 on the steam rack 3.

[0081] The heating plate 4 is located inside the main body 2 of the steamer and at the bottom of the heating chamber 618. The outer cover 5 and the inner valve 6 are located above the heating plate 4. The upper surface 41 of the heating plate is located at the bottom of the heating chamber 618. Thus, the heating plate 4 only needs to heat the core heating area of ​​the upper surface 41 of the heating plate to quickly generate steam.

[0082] The drip tray 10 is provided to collect dripping juice from the steam rack 3 and water droplets after steam condensation; the dripping water return hole 105 is provided so that when water droplets from the edge of the steam rack 3 fall into the return groove 104, they can flow into the dripping water collection groove 103 through the dripping water return hole 105.

[0083] The working principle will be explained further below:

[0084] In this invention, after the outer cover 5 and the inner valve 6 are installed inside the main body of the steamer, a large-capacity water storage cavity 9 is formed between the outer cover 5 and the inner wall of the main body of the steamer, and a relatively sealed transition water cavity 8 is formed between the outer cover 5 and the inner valve 6. Inside the inner valve 6, the heating cavity 618 and the upper surface of the heating plate form a core heating area, so that the heating plate only needs to heat a small amount of water in the core heating area. Since the amount of water heated is small, steam can be generated quickly.

[0085] The generated steam enters the steam chamber 7 through the first steam outlet 612 on the steam cover 611. Most of the steam in the steam chamber 7 enters the third steam outlet on the steam rack through the first steam outlet on the outer cover 5, and is then released into the steam pot lid for cooking food. A small portion of the steam in the steam chamber 7 forms water droplets and circulates into the lower transition water chamber 8, thereby realizing the recycling of heat energy and saving energy consumption.

[0086] When the water in the inner valve 6 boils, the water will flow out from the overflow hole 614 on the overflow tank 613 and into the transition water chamber 8. The boiling water flowing out from the overflow hole 614 will circulate into the transition water chamber 8, which can raise the temperature of the water in the transition water chamber 8 and achieve preheating, thereby realizing the recycling of heat energy and saving energy consumption. When the amount of water in the heating chamber 618 decreases due to evaporation, the water in the transition water chamber 8 can flow into the heating chamber 618 through the second water inlet hole 620.

[0087] This invention is not limited to the above-mentioned optional embodiments. Under the premise of non-contradiction, the various solutions can be combined arbitrarily. Anyone can derive other forms of products under the guidance of this invention. However, no matter what changes are made in their shape or structure, all technical solutions that fall within the scope of the claims of this invention are within the protection scope of this invention.

Claims

1. A heat energy inner cycle concentrator on an electric steamer, characterized in that, The steam cavity is formed between the outer cover and the inner valve at the upper part, and the excessive water cavity is formed at the lower part, and the steam cavity and the excessive water cavity are communicated; the outer cover is provided with a first water inlet hole for injecting water into the excessive water cavity; The inner valve comprises a steam groove, a water guide channel and a heating cavity from top to bottom, and the water guide channel communicates the steam groove and the heating cavity; The outer cover is provided with a first steam outlet hole communicating with the steam cavity, the steam groove is provided with a second steam outlet hole communicating with the steam cavity and the steam groove and an overflow hole communicating with the steam groove and the excessive water cavity; the inner valve is provided with a second water inlet hole communicating with the excessive water cavity and the heating cavity.

2. A heat energy inner circulating energy collector for an electric steamer as claimed in claim 1, wherein, The steam groove comprises a steam cover and an overflow groove with a large upper end and a small lower end, and the steam cover is arranged on the upper side of the groove opening of the overflow groove; the second steam outlet hole is arranged on the steam cover, and the overflow hole is arranged on the overflow groove.

3. A heat energy inner circulating energy collector for an electric steamer as claimed in claim 2, wherein, The steam cover is a circular cover with a closed upper end, and the second steam outlet hole has a plurality of second steam outlet holes which are uniformly arranged on the side surface of the steam cover.

4. A heat energy inner circulating energy collector for an electric steamer as claimed in claim 2, wherein, The overflow groove is a horn shape with a large upper end and a small lower end, and a partition plate is arranged between the overflow groove and the outer cover, the partition plate is located between the overflow hole and the second steam outlet hole, and the partition plate divides the space between the inner valve and the outer cover into the steam cavity at the upper part and the excessive water cavity at the lower part.

5. A heat energy inner circulating energy collector for an electric steamer as claimed in claim 4, wherein, An annular plate is arranged between the outer cover and the steam cover, and the first steam outlet hole is arranged on the annular plate; the steam cavity is located between the annular plate and the partition plate.

6. A heat energy inner circulating energy collector for an electric steamer as claimed in claim 3, wherein, The bottom of the outer cover is provided with an annular seat, and the first water inlet hole is arranged on the annular seat.

7. A heat energy inner circulating energy collector for an electric steamer as claimed in claim 1, wherein, The heating cavity is a flat horn shape with a small upper end and a large lower end, the bottom of the heating cavity is provided with a valve seat, and the second water inlet hole is arranged on the valve seat.

8. A heat energy inner circulating energy collector for an electric steamer as claimed in claim 1, wherein, The water guide channel is a water guide pipe, the upper end of the water guide pipe is connected with the lower end of the steam groove, and the lower end of the water guide pipe is connected with the upper end of the heating cavity.

9. An electric steamer characterized by comprising: The steam cover, the main body of the steamer, the steaming rack, the heating disc and the heat energy inner circulation energy gathering cover of any one of claims 1 to 8 are arranged on the electric steamer, the steam cover is arranged on the upper side of the main body of the steamer, the steaming rack is arranged in the main body of the steamer and located above the outer cover; a water storage cavity is arranged between the outer cover and the inner wall of the main body of the steamer; the first water inlet hole communicates the water storage cavity and the excessive water cavity; The steaming rack is provided with a third steam outlet hole, and the third steam outlet hole is communicated with the first steam outlet hole; The heating disc is located in the main body of the steamer and at the bottom of the heating cavity.

10. An electric steamer characterized by comprising: The steam cover, the main body of the steamer, the juice receiving disc, the steaming rack, the heating disc and the heat energy inner circulation energy gathering cover of any one of claims 1 to 8 are arranged on the electric steamer, the steam cover is arranged on the upper side of the main body of the steamer, and the juice receiving disc is arranged in the main body of the steamer and located above the outer cover; A water storage cavity is arranged between the outer cover and the inner wall of the main body of the steamer; the first water inlet hole communicates the water storage cavity and the excessive water cavity; The juice receiving disc is provided with a juice receiving groove, the steaming rack is located above the juice receiving groove and the edge of the steaming rack is arranged at the groove opening of the juice receiving groove, the juice receiving disc is provided with a reflux groove which surrounds the outside of the groove opening of the juice receiving groove, a juice reflux hole which connects the juice receiving groove and the reflux groove is arranged between the juice receiving groove and the reflux groove, the juice receiving groove is provided with a juice receiving disc steam outlet hole which connects the juice receiving groove and the first steam outlet hole, and the juice receiving disc steam outlet hole is located above the groove bottom of the juice receiving groove; The steaming rack is provided with a fourth steam outlet hole which connects the juice receiving groove; The heating disc is located in the main body of the steamer and at the bottom of the heating cavity.

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