TWI791083B - A steam cooking rice cooker - Google Patents

Abstract

A steam cooking rice cooker according to the present application includes a main body and a pot, the main body is provided with a steam generating device, the main body is laterally provided with an open space, and a top of the open space is provided with a machine head, and the open space is used for accommodating the pot, the pot includes a pot body and a pot lid, the pot lid is provided with a cooperating portion that is docked with the machine head, the machine head is provided with a steam outlet, the steam outlet is in communication with the steam generating device, and the cooperating portion is provided with a steam inlet, and the steam outlet is used to connect with the steam inlet. The open space allows for easy handling and placement of the pot. The steam is introduced into the pot body through the steam outlet of the machine head, and the steam is diffused in a cooking cavity formed by the pot body and the pot lid, so that the all-directional three-dimensional heating in the cooking cavity can be realized, which evenly heats the pot body, and solves the problem in the prior art that the pot body is unevenly heated because it is only heated at the bottom or the periphery.

Description

A steam cooking rice cooker

The invention relates to the technical field of kitchen appliances, in particular to a steam cooking rice cooker.

Existing rice cooker realizes the function of cooking rice and cooking porridge, and generally adopts the external heating of the inner container, such as bottom heating (heating plate, electromagnetic heating) or surrounding heating (IH electromagnetic heating), and the inner container absorbs heat and transfers it to the inner water and rice until the rice is cooked. The heated parts of the above-mentioned heating method are concentrated in the contact position between the inner pot and the rice, so that the rice in different areas in the inner pot is heated unevenly during heating. In the prior art, there is a structure that feeds steam into the rice cooker. However, the overall structure still uses the existing rice cooker, and most of them only have a steam inlet on the existing cooker cover. It is still inconvenient to take and put the inner pot. It is inconvenient for users to take out the liner after opening the cover.

The object of the present invention is to provide a steam cooking rice cooker, which has a body as a steam heating platform and a pot for cooking. The steam connection between the two is easy to realize and has good sealing performance, which can realize omnidirectional three-dimensional heating in the cooking cavity. .

In order to achieve the above object, the technical solution of the present invention is as follows: a steam cooking rice cooker, including a body and a pot, the body is provided with a steam generating device, an open space is provided on the side of the body, and the top of the open space is provided The machine head, the open space is used to place the pot, the pot includes a pot body and a pot cover, the pot cover is provided with a receiving part docked with the machine head, the machine head is provided with a steam outlet, and the steam outlet communicates with the steam generating device , the receiving part is provided with a steam inlet, and the steam outlet is used for docking with the steam inlet. Access and placement of pans is facilitated by the open space. The limited space of the pot is formed between the head and the bottom at the top of the open space, so that the pot can be pressed tightly between the head and the bottom. The steam is introduced into the pot body through the steam outlet of the machine head, and the steam diffuses in the cooking cavity formed by the pot body and the pot cover, which can realize all-round three-dimensional heating in the cooking cavity, so that the pot body is heated evenly, and solves the problem that the existing technology is only at the bottom or around. The defect that the pot body is heated unevenly.

In some embodiments of the present invention, the head can be stretched up and down, and the head can be stretched to connect and separate the steam outlet and the steam inlet. The body serves as a platform for steam heating, and the steam connection with the pot is realized through the docking of the machine head and the receiving part on the pot cover. When cooking is required, the pot is placed under the machine head, and the machine head is stretched to the working position to complete the docking of the steam outlet and the steam inlet, so as to provide steam to the pot. When the cooking is finished or not cooked, the machine head returns to the position, and the pot can be directly taken out and placed at the position the user wants. The pot after being separated from the body has a good heat preservation performance due to the pot cover, and the temperature of the food will not drop rapidly because it is not heated, and the user experience is good.

In some embodiments of the present invention, a first sealing structure is provided between the steam outlet and the steam inlet, and the first sealing structure seals the gap between the steam outlet and the steam inlet when they are docked. The first sealing structure is arranged between the steam outlet and the steam inlet to prevent steam from leaking after the steam outlet and the steam inlet are connected, so as to improve use safety and energy efficiency.

In some embodiments of the present invention, one of the steam outlet and the steam inlet One can be inserted into the other to achieve docking. There is a gap between the steam outlet and the steam inlet when they are docked. The first sealing structure is located or partially extends into the gap to seal the gap. Since one of the steam outlet and the steam inlet can be inserted into the other to achieve docking, this docking method can adjust the insertion distance, so the docking position of the steam outlet and the steam inlet can be adjusted to a certain extent, which increases the cooking device. applicability and versatility. In addition, there is a gap between the steam outlet and the steam inlet when they are docked, and the first sealing structure is in or partially extends into the gap to seal the gap. The first sealing structure provided ensures that the steam outlet and the steam inlet Good sealing performance can be obtained when the steam inlet is in different docking positions.

In some embodiments of the present invention, the end of the steam inlet or the end of the steam outlet is provided with a mounting part, and the first sealing structure is mounted on the mounting part. The first sealing structure is installed at the end of the steam inlet or the steam outlet, so that the steam inlet and the steam outlet can be sealed at the beginning of docking. Especially, for the case where the docking position of the steam inlet and the steam outlet mentioned in some of the above embodiments is adjustable, the installation position of the first sealing structure increases the adjustable distance of the docking position between the steam inlet and the steam outlet.

In some embodiments of the present invention, the machine head is also provided with a steam discharge inlet, and the receiving part is also provided with a steam discharge outlet. A second sealing structure is provided between the inlet and the steam discharge outlet, and the second sealing structure seals the gap between the steam discharge inlet and the steam discharge outlet when they are docked. The excess steam in the pot is discharged through the steam outlet, so as to avoid the continuous rise of the pressure in the pot and facilitate the continuous introduction of hot steam.

In some embodiments of the present invention, the end of the steam discharge inlet and the steam discharge One of the ends of the outlet is installed with the second sealing structure, while the other forms a flaring portion, and the second sealing structure is pressed against the flaring portion when the machine head is retracted to realize the steam discharge inlet and steam discharge outlet. seal. The sealing between the steam discharge inlet and the steam discharge outlet is realized by pressing the second sealing structure, so as to prevent steam from overflowing from the joint.

In some embodiments of the present invention, the steam inlet is detachably connected with a steam guide tube, and when the steam guide tube is assembled at the steam inlet for cooking, the steam guide tube guides the steam into the pot below the liquid surface. The steam is guided to the bottom of the liquid surface in the pot through the guide tube for heating, so that the liquid can fully absorb the heat of the steam, and the liquid mixture can be fully rolled, shortening the cooking time and improving the heating efficiency.

In some embodiments of the present invention, the steam guiding pipe includes a first steam outlet at the lower end, and at least one second steam outlet at the side. Two steam outlets are set on the steam guide pipe. Since the steam is discharged from top to bottom, if only the first steam outlet at the end discharges steam, the aperture of the first steam outlet is larger, and the steam generates larger bubbles under the liquid surface. After the liquid absorbs the heat carried by the steam, the air bubbles are compressed by cold and burst, which will produce a bursting sound in the liquid, which affects the user experience; therefore, a second steam outlet is set on the side of the steam guide pipe, and the second steam outlet is used as the main steam discharge outlet, since the number of second steam outlets is more than one, the aperture diameter of each corresponding second steam outlet becomes smaller, a large amount of steam is discharged from the second steam outlet, and the steam discharged from the second steam outlet forms a relatively small liquid in the liquid. Small bubbles, the sound of bursting is small.

In some embodiments of the present invention, the steam inlet is located in the middle of the pot cover. The steam enters from the middle position above the pot body, the steam spreads evenly, the food is heated more evenly, and the cooking effect is better.

In some embodiments of the present invention, the pot body is a heat preservation pot body. By insulating the pot body, the heat locking ability of the pot body can be improved, so that the heat energy will not be lost and energy saving.

100‧‧‧body

10‧‧‧open space

200‧‧‧cookware

1‧‧‧machine head

11‧‧‧Steam outlet

12‧‧‧Steam discharge inlet

2. 300‧‧‧pan lid

320‧‧‧Guidance Department

330‧‧‧seal assembly

3‧‧‧pot body

4‧‧‧Commitment department

41. 310‧‧‧Steam inlet

42. 340‧‧‧Steam discharge outlet

43‧‧‧Installation Department

44‧‧‧flaring part

5‧‧‧The first sealing structure

51‧‧‧Into the section

6‧‧‧Interval gap

7‧‧‧Crimping structure

8‧‧‧Second Sealing Structure

81‧‧‧Incline guide

400‧‧‧Steam generating device

500‧‧‧Steam guide pipe

510‧‧‧The first steam outlet

520‧‧‧The second steam outlet

530‧‧‧Anti-back suction hole

Fig. 1 is a schematic diagram of the appearance and structure of an embodiment of a steam cooking rice cooker of the present invention; Fig. 2 is a schematic sectional view of a partial sectional structure of an embodiment of a steam cooking rice cooker of the present invention; Fig. 3 is a schematic view of a steam cooking rice cooker of the present invention A cross-sectional view of the structure when the machine head and the pot cover are not docked in an embodiment; FIG. 4 is a structural cross-sectional view of a steam cooking rice cooker in an embodiment of the present invention when the machine head and the pot cover are docked; FIG. 5 is a view of the structure in FIG. 4 An enlarged view of part A; FIG. 6 is a schematic cross-sectional structural view of an embodiment of a steam cooking rice cooker of the present invention (a rotating cross-sectional view composed of two intersecting cut planes); FIG. 7 is an embodiment of a steam cooking rice cooker of the present invention Figure 8 is a perspective view of another embodiment of a steam cooking rice cooker of the present invention; Figure 9 is a cross-sectional view of another embodiment of a steam cooking rice cooker of the present invention; Figure 10 is a perspective view of another embodiment of a steam cooking rice cooker of the present invention; A perspective view of a pot body of an embodiment of a steam cooking rice cooker; FIG. 11 is a cross-sectional view of a pot body of an embodiment of a steam cooking rice cooker of the present invention (assembled with a steam guide pipe); FIG. 12 is a steam cooking rice cooker of the present invention A cross-sectional view of an embodiment of a steam cooking rice cooker (not equipped with a steam guide pipe); Fig. 13 is a perspective view of a steam guide pipe of an embodiment of a steam cooking rice cooker of the present invention; Fig. 14 is a cross-sectional view of a steam guide pipe of an embodiment of a steam cooking rice cooker of the present invention.

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

This article takes the steam cooking rice cooker as an example to introduce the technical solution and technical effect. Of course, those skilled in the art can understand that the technical solution in this paper is not limited to the application in the steam cooking rice cooker, and can also be used for other steam cooking devices (also It is called steam cooking and heating appliance).

Please refer to Fig. 1-2, the present invention proposes a steam cooking rice cooker, wherein the steam cooking rice cooker in one embodiment includes a body 100 and a pot 200, wherein the body 100 is used as a platform for steam heating, and the pot 200 is used For food that needs to be cooked, such as rice. The body 100 is provided with a steam generating device (not shown in the figure), and the body 100 is provided with an open space 10 laterally. The body 3 and the pot cover 2, the pot cover 2 is provided with a receiving part 4 docked with the machine head 1, the machine head 1 is provided with a steam outlet 11, and the steam outlet 11 communicates with the steam generating device, the receiving part 4 is provided with a steam inlet 41, and the steam outlet 11 is docked with steam inlet 41. Taking and placing the pot 200 can be facilitated through the open space. The limited space of the pot 200 is formed between the machine head 1 and the bottom at the top of the open space 10, so that the pot 200 can be compressed between the machine head 1 and the bottom. Introduce steam into the pot body 3 through the steam outlet 11 of the machine head 1, and the steam diffuses in the cooking cavity formed by the pot body 3 and the pot cover 2, and cooking can be realized All-round three-dimensional heating in the cavity makes the pot body 3 evenly heated, which solves the defect of the prior art that the pot body is only heated at the bottom or around and unevenly heated. With the help of the open space 10 arranged sideways, to facilitate the taking and placement of the pot 200, on the other hand, the limited space of the pot 200 is formed between the head 1 and the bottom of the open space 10 top, so that the pot 200 can be It is compressed between the machine head 1 and the bottom. Preferably, the height of the space from the outside of the open space 10 to the machine head 1 gradually decreases. This setting can facilitate the lateral insertion of the pan 200, and at the same time, it is also beneficial to judge whether the pan 200 is accurately placed on the machine. Directly below the head 1, to improve the user's operating experience.

It can be seen from the above description that when the steam cooking rice cooker is cooking food, the steam outlet 11 and the steam inlet 41 can be connected to introduce steam into the inside of the pot body. 200 for pick and place.

Further, the machine head 1 can be stretched up and down, and the machine head 1 is used to connect with the pot 200 to provide steam for the pot 200 .

The machine head 1 is stretched to connect the steam outlet 11 and the steam inlet 41 . When cooking is required, the pot 200 is placed under the machine head 1, and the machine head 1 is stretched to the working position (generally, the machine head 1 is lowered), and the docking of the steam outlet 11 and the steam inlet 41 is completed, so as to provide steam to the pot 200 . Wherein, the receiving part 4 is located at the middle position of the pot cover 2, so the steam inlet 41 will also be at the middle position of the pot cover 4, so that the steam enters from the middle position above the pot body 3, the steam diffuses evenly, and the heating of the food is also more efficient. Evenly, better cooking results.

Referring to FIG. 3 , a first sealing structure 5 is provided between the steam outlet 11 and the steam inlet 41 , and the first sealing structure 5 can adopt a common sealing structure, such as a sealing ring. The first sealing structure 5 seals the gap between the steam outlet 11 and the steam inlet 41 when the docking is completed (refer to FIG. 5 ), preventing the steam from leaking after the steam outlet 11 and the steam inlet 41 are docked, so as to improve High use safety and energy efficiency.

When the cooking is finished or not cooked, the machine head 1 returns to its position (generally, the machine head 1 rises), and the machine head 1 breaks away from the pot cover 2. At this time, the user can directly take out the pot 200 and place it where the user wants to place it. In addition, the pot 200 separated from the body 100 has a good thermal insulation performance due to the pot cover 2, and will not cause the temperature of the food to drop rapidly because it is not heated. Food, user experience is good.

Among them, the expansion and contraction of the machine head 1 can be driven by a driving method that can realize displacement such as an electric push rod, a screw drive structure, a rack and pinion drive structure, a hydraulic cylinder drive structure, and an air cylinder drive structure, such as the one used in Figure 2 of this embodiment. The screw drive structure realizes expansion and contraction through the drive system composed of motor, screw and nut.

Referring again to FIG. 1 , in some embodiments, the machine head 1 is configured to be pressed against the receiving portion 4 after the steam outlet 11 and the steam inlet 41 are docked so as to press the pot cover 2 to the pot body 3, that is, the machine When the head 1 stretches to the working position, a downward pressure is generated on the receiving part 4, and the pot cover 2 is pressed tightly on the pot body 3 by this pressure, so as to ensure the close fit between the two, and at the same time, the entire pot 200 is Secured by pressure, the pan 200 is prevented from moving during cooking. In addition, when the receiving portion 4 is located in the middle of the pot cover 2, the force of the pot cover 2 placed on the pot body 3 is even and does not deviate.

Referring to Figures 3-4, in some embodiments, one of the steam outlet 11 and the steam inlet 41 can be inserted into the other to achieve docking. The steam outlet 11 can be inserted into the steam inlet 41 as an example for illustration. The advantage of using plug-in docking is that the docking position of the steam outlet 11 and the steam inlet 41 can be adjusted to a certain extent due to the adjustable insertion distance, which increases the applicability and versatility of the cooking device.

Referring to Fig. 5 again, after the steam outlet 11 is inserted into the steam inlet 41, that is, when docking, the steam There is a gap 6 between the steam outlet 11 and the steam inlet 41 , and the gap 6 is the area between the outer surface of the steam outlet 11 and the inner surface of the steam inlet 41 . The first sealing structure 5 is located or partly protrudes into the interval gap 6 , thereby sealing the interval gap 6 , and ensuring that the steam outlet 11 and the steam inlet 41 are in different docking positions to obtain good sealing performance. This embodiment preferably adopts the scheme that the first sealing structure 5 partly extends into the interval gap 6, wherein the protruding part is called the protruding section 51, as shown in Figure 5, the protruding section 51 is squeezed when it acts as a seal. Compression deformation, so as to play a sealing role.

In some of these embodiments, the end of the steam inlet 41 or the end of the steam outlet 11 is provided with a mounting portion 43, the first sealing structure 5 is installed on the mounting portion 43, and the first sealing structure 5 is installed on the end of the steam inlet 41 Or the end of the steam outlet 11, so that the steam inlet 41 and the steam outlet 11 can be sealed when the docking starts. Referring to Figures 3 and 5, the present embodiment is preferably provided with an installation part 43 at the end of the steam inlet 41, that is, the first sealing structure 5 is installed at the end of the steam inlet 41, and the installation part 43 can be as shown in Figure 5 ladder structure. Since the machine head 1 has many structures, involving sensor installation, etc., the first sealing structure 5 is installed on the end of the steam inlet 41, which reduces the installation of the sealing structure on the machine head 1, and can give the machine head 1 other Sufficient installation space for important structures.

As shown in FIG. 3 , for the first sealing structure 5 adopted in this embodiment, the protruding section 51 is opened horizontally toward the steam inlet 41 before the steam outlet 11 is inserted. As shown in FIG. 5 , when the steam outlet 11 is inserted, the protruding section 51 will be pressed downward, so that the protruding section 51 is squeezed at the gap 6 between the steam inlet 41 and the steam outlet 11 . In order to facilitate the insertion of the steam outlet 11 , the first sealing structure 5 has an inclined guide surface that facilitates the insertion of the steam outlet 11 .

The installation of common sealing structures can be embedded, clamped, etc., the first part of this embodiment The installation of a sealing structure 5 preferably adopts a crimping method, as shown in FIGS. Between the parts 43, the crimping structure 7 compresses and fixes the first sealing structure 5 to the mounting part 43, and the crimping structure 7 makes the installation of the first sealing structure 5 more secure. Wherein, the crimping structure can be a structure similar to a sleeve, and the first sealing structure 5 is fixed by being sleeved on the installation part 43, and the crimping structure 7 itself is prevented from falling off by the elastic extrusion force of the first sealing structure 5. , this installation method can facilitate the disassembly and assembly of the crimping structure 7, and facilitate the disassembly and cleaning of the first sealing structure 5 as a whole. In addition, for the situation that the first sealing structure 5 of the present embodiment is installed on the end of the steam inlet 41, because the pot cover 2 is a free part when not cooking, bumping will inevitably occur, while the crimping structure of the present embodiment 7 will partially cover the first sealing structure 5, reducing the situation that the first sealing structure 5 is bumped when the pot lid 2 falls.

In some embodiments, as shown in FIG. 3 and FIG. 6 , the machine body 100 is also provided with a steam recovery device (not shown in the figure), and the machine head 1 is also provided with a steam discharge inlet 12 communicating with the steam recovery device. The part 4 is also provided with a steam discharge outlet 42. When the machine head 1 and the receiving part 4 are docked, the steam discharge inlet 12 and the steam discharge outlet 42 are butted and communicated. The heating steam and the steam generated during the heating process, if the steam is directly discharged into the room, it will have a certain impact on wooden furniture and other electrical equipment. Through the steam recovery structure, the steam can be recovered to prevent the steam from being emitted into the room In the air, the influence of steam on the outside world can be eliminated. In addition, the steam discharge inlet 12 is also provided on the machine head 1 , and the steam discharge outlet 42 is also provided on the receiving portion 4 , which can simplify the structure of the machine body 100 .

In order to prevent steam leakage during the steam discharge process, as shown in Figure 3, a second sealing structure 8 is set between the steam discharge inlet 12 and the steam discharge outlet 42, and the second sealing structure 8 is placed between the steam discharge outlet 42. When the discharge inlet 12 and the steam discharge outlet 42 are docked, the gap between the two is sealed to realize cooking without steam leakage. The second sealing structure 8 can also adopt a sealing ring.

In some preferred embodiments, as shown in FIG. 3 and FIG. 5 , one of the ends of the steam discharge inlet 12 and the end of the steam discharge outlet 42 is installed with the second sealing structure 8 , while the other forms a flaring portion. 44. In the following, the second sealing structure 8 is installed at the end of the steam discharge inlet 12 , and the steam discharge outlet 42 forms a flaring portion 44 as an example for illustration. The installation method of the second sealing structure 8 can adopt the method of partially embedded installation of the second sealing structure 8 in the figure.

Referring to FIG. 2 and FIG. 5 , when the machine head 1 is stretched downward, the machine head 1 is pressed against the flaring portion 44 through the second sealing structure 8 , so as to realize the sealing of the steam discharge inlet 12 and the steam discharge outlet 42 . The sealing process is a pressing process, so the pressing force can be used to complete the function of the machine head 1 to press the pot cover 2 against the pot body 3, and at the same time, press and fix the entire pot 200 to prevent the pot 200 from cooking. move during the process.

In order to enable the second sealing structure 8 to be accurately pressed on the flaring portion 44, as shown in FIG. During the process, the second sealing structure 8 is accurately guided into the flaring portion 44 to prevent the second sealing structure 8 from being deviated from its position and being directly pressed against the end edge of the steam discharge outlet 42 to be crushed.

In addition, in these embodiments, because the second sealing structure 8 needs to withstand pressure, it needs to be exposed so as to accept pressure. If the second sealing structure 8 is installed on the pot cover 2, since the pot cover 2 is in use It may be placed in any possible position, or even fall. In this case, the exposed second sealing structure 8 is more likely to be bumped and ruptured. Installing the second sealing structure 8 on the machine head 1 can avoid The second sealing structure 8 may be bumped by accident able.

In some preferred embodiments, the connection between the steam inlet 41 and the steam outlet 11 is prior to the connection between the steam discharge outlet 42 and the steam discharge inlet 12 . By preferentially connecting the steam inlet 41 with the steam outlet 11 , it is possible to prevent the heating steam from leaking out and affecting the cooking and heating efficiency. Here, prior to the docking, that is, after the steam inlet 41 and the steam outlet 11 are docked, their positions can be adjusted while maintaining the docked state. This position adjustment can be reflected in the plug-in method mentioned in some of the above-mentioned embodiments, or The steam inlet 41 and/or the steam outlet 11 itself has elasticity or stretchability.

In particular, as mentioned in some of the above-mentioned embodiments, the second sealing structure 8 between the steam discharge outlet 42 and the steam discharge inlet 12 is sealed by being compressed by the two. In this case, the steam discharge outlet 42 and the steam discharge inlet 12 are poorly adjustable, so after the steam discharge outlet 42 and the steam discharge inlet 12 are docked, it will mean that the extension and contraction of the machine head 1 is completed, and by prioritizing the docking of the steam inlet 41 and the steam outlet 11, It can be ensured that the steam inlet 41 and the steam outlet 11 must be in a docking state when the above-mentioned machine head 1 is stretched and retracted, which improves the reliability of the whole machine.

For the cooking device, the pot 200 is used for filling food, so it needs to be taken out frequently for cleaning, and the cross section of the pot 200 is mostly circular. When the pot 200 is placed directly under the machine head 1, the pot 200 It is difficult for the user to identify the specific rotation position of the steam channel, so it is necessary to consider the problem of easy connection of two different steam channels. In view of this, referring to FIG. 7 , in some preferred embodiments, the steam outlet 42 is arranged around the steam inlet 41 around the steam inlet 41 , and the second sealing structure 8 is arranged around the steam outlet 11 around the steam outlet 11 . The surrounding structure makes the docking of the machine head 1 and the receiving part 4 not affected by the rotation of the pot 200 itself, and the user only needs to ensure that the pot 200 is directly under the machine head 1, which is easy to operate and has a good user experience .

In order to improve the steam heating effect, this paper also proposes the following improvements.

In some embodiments, as shown in FIG. 8 and FIG. 9 , a steam heating cooking appliance, such as a steam cooking rice cooker, includes a body 100 , a pot body 3 , and a pot cover 300 covering the pot body 3 . It can be seen from Figures 8 to 14 that the whole formed by the pot body 3 and the pot cover 300 is also placed in the open space on the side of the machine body 100, and the machine head is set on the top of the open space, and there must be a receiving part as mentioned above . The body 100 is provided with a steam generating device 400, the pot cover 300 is provided with a steam inlet 310 and a steam discharge outlet 340, the steam inlet 310 is detachably connected with a steam guiding pipe 500, and the steam generated by the steam generating device enters through the steam guiding pipe Pot cooking. The steam is guided to the pot body through the steam guiding pipe 500 for cooking, so that the steam can perform sufficient heat exchange, and the introduced steam is prevented from being discharged without sufficient heat exchange, which affects the heating efficiency. Preferably, the pot cover 300 and the pot body 3 constitute a cooking cavity, and the assembled steam guiding pipe is located in the central area of the pot cover. The steam entering from the steam inlet is introduced into the cooking cavity through the steam guide pipe. Since the steam guide pipe is located in the center of the pot cover, the steam injected from the steam guide pipe first touches the food downwards, then diffuses around, and then diffuses upwards. The steam is discharged from the steam discharge outlet, so that the steam forms convection in the cooking cavity, improves the cooking effect, and realizes that the food can be directly heated for cooking only with the help of steam.

In addition, during the process of steam moving to the steam outlet, part of the steam will bypass the steam outlet and move to the steam inlet due to the inertia and the disturbance of the air flow injected into the steam, and finally participate in the convection flow back together with the incoming steam. ring, improving thermal efficiency.

Further, the steam heating cooking appliance has at least a first cooking mode and a second cooking mode. In the first cooking mode, the steam guiding pipe 500 is separated from the steam inlet, and the steam generates The steam generated by the device enters the pot body from the steam inlet for cooking; in the second cooking mode, the steam guide pipe 500 is assembled on the steam inlet 310, and the steam generated by the steam generating device enters the pot body through the steam guide pipe for cooking.

A detachable steam guide tube 500 is set at the steam inlet 310, and the steam guide tube can be installed or removed according to the specific cooking mode to make full use of the steam; the steam guide tube can be installed at the steam inlet to extend the steam outlet to the pot body After the steam reaches the lower area from the pot body, part of it is absorbed by the liquid placed in the pot body, and part of it rises back to the upper area of the pot body to make full use of the heat energy carried by the steam; remove the steam guide tube from the steam inlet Next, the steam entering from the steam inlet is introduced into the pot body, and the steam slowly enters the lower area of the pot body from the upper area of the pot body, and slowly diffuses the steam from top to bottom, so as to achieve the purpose of cooking with the heat energy carried by the steam.

The first cooking mode and the second cooking mode belong to two different cooking modes. In the first cooking mode, it is only necessary to use steam for heat conduction for cooking, specifically the rice cooking mode; in the second cooking mode, the liquid needs to be The mixture is cooked by tumbling to reduce the cooking time, specifically in the porridge mode; the steam guide tube is used in conjunction with the cooking mode, and the cooking is more targeted and the cooking quality is improved. Of course, it can be understood that in the rice cooking mode, because the pot body is a mixture of rice and water, a steam guide tube is installed for cooking, and the steam guide tube 500 guides steam into the bottom of the pot body.

When the steam guide tube is assembled at the steam inlet for cooking, that is, in the second cooking mode, the steam guide tube 500 guides the steam into the pot below the liquid surface. The second cooking mode is defined as the cooking mode of solid-liquid mixing, as described above as the porridge cooking mode, and the gas outlet of the steam guide pipe is limited below the liquid surface to ensure that the steam discharged from the steam guide pipe emerges from below the liquid surface back discharge, add The hot steam is fully in contact with the liquid to achieve heat exchange and improve the heating efficiency of the liquid.

Further, the steam outlet of the steam guiding pipe is located 1-3 cm below the liquid surface (d1 in Fig. 9). If the steam outlet of the steam guide pipe is located less than 1cm below the liquid surface, when the steam is introduced too fast, the ejected steam will hit the liquid surface, which may cause the liquid at the steam outlet to scatter around, and the steam discharged from the steam outlet cannot fully mix with the liquid. contact, the cooking time is slow; if the steam outlet of the steam guiding pipe is located more than 3cm below the liquid surface, the steam will form a large amount of foam under the liquid surface, and the foam will rise from below the liquid surface to above the liquid surface and burst, causing the inner pot above the liquid surface to burst. A large amount of food to be cooked is adhered to the wall, which affects user experience.

In this scheme, the specific disassembly and assembly structure of the steam guiding pipe is further given.

Referring to FIG. 10 , FIG. 11 and FIG. 12 , the steam inlet 310 is provided with a guiding portion 320 extending toward the bottom of the pot body 3 , and one end of the steam guiding pipe is assembled on the guiding portion 320 . Generally, the steam inlet 310 is a through hole directly opened on the pot cover 300. If the steam guide pipe is directly installed at the through hole, it is inconvenient to assemble. The guide part 320 is extended at the steam inlet, and the guide part is used as the assembly of the steam guide pipe. As a component, the guide pipe 320 can be integrally formed directly with the steam inlet, or the guide part can be fixed to the steam inlet by installing a firmware.

The above-mentioned steam guiding pipe is fixed on the guiding part by means of tight fit, twist buckle or magnetic structure, and the hole diameter of the steam guiding part at the assembly place is greater than or equal to the hole diameter of the lower part of the guiding part.

Tight fit, turnbuckle or magnetic structure are the main structures of the existing assembly, through the above assembly structure, the steam guide pipe can be easily disassembled. When a tight fit is used, the guide tube 320 can be a hose, and the steam guide tube can be assembled on the guide tube through extrusion force; when a turnbuckle or a magnetic structure is used, the guide tube 320 can be a hard tube. A buckle mechanism or a groove is provided correspondingly to facilitate disassembly.

In order to prevent the connection between the steam guide tube and the guide tube from slipping and affecting the discharge of steam after long-term use, it also includes a sealing element 330 that covers the end edge of the guide part, and the sealing element guides all the steam into the steam guide tube. The steam guiding pipe 500 is sheathed on the sealing assembly 330, and the inner wall of the steam guiding pipe closely matches the largest outer wall of the sealing assembly.

Further, referring to FIG. 13 and FIG. 14 , the steam guiding pipe 500 includes a first steam outlet 510 at the lower end, and at least one second steam outlet 520 at the side. Two steam outlets are set on the steam guide pipe. Since the steam is discharged from top to bottom, if only the first steam outlet at the end discharges steam, the aperture of the first steam outlet is larger, and the steam generates larger bubbles under the liquid surface. After the liquid absorbs the heat carried by the steam, the air bubbles are compressed by cold and burst, which will produce a bursting sound in the liquid, which affects the user experience; therefore, a second steam outlet is set on the side of the steam guide pipe, and the second steam outlet is used as the main steam discharge outlet, since the number of second steam outlets is more than one, the aperture diameter of each corresponding second steam outlet becomes smaller, a large amount of steam is discharged from the second steam outlet, and the steam discharged from the second steam outlet forms a relatively small liquid in the liquid. Small bubbles, the sound of bursting is small.

The second steam outlet 520 is a sound-absorbing hole, which is far away from the first steam outlet 510, and the sound-absorbing hole surrounds and penetrates the pipe wall of the steam guiding pipe.

The above-mentioned second steam outlet is set apart from the first steam outlet, and the second steam outlet is arranged around the pipe wall, so as to guide most of the steam to be discharged from the peripheral side of the pipe wall, the discharge efficiency is high, and there is less steam from the first steam outlet. One steam outlet is discharged, even if it is discharged, because the amount of steam is reduced, the foam formed in the liquid is correspondingly less; that is, the corresponding second steam outlet 520 in the present invention is a sound-absorbing hole.

Furthermore, an anti-suckback hole 530 is provided in the upper middle part of the steam guide pipe to prevent The suction hole is far away from the second steam outlet. During the cooking process, steam is continuously injected into the liquid, so that the pressure in the liquid is higher than the pressure in the steam guide tube. If the steam supply is cut off, the pressure in the liquid surface is greater than the pressure in the steam guide tube, and the liquid will flow from Influx into the steam guide tube, and set anti-suckback holes in the upper and middle areas of the steam guide tube, then the influx of liquid will be discharged from the anti-suckback holes, preventing the liquid from pouring into the steam inlet from the steam guide tube without restraint. Pollution is caused to the lid and affects user experience.

In the longitudinal direction, the distance d2 between the lowest end of the anti-suckback hole 530 and the highest end of the second steam outlet 520 is 10-50 mm. This solution defines the distance relationship between the above-mentioned anti-suckback hole and the second steam outlet. If the distance between the lowest end of the anti-suckback hole and the highest end of the second steam outlet is less than 10mm, the liquid will flow from the bottom There is a buffer force when pouring into the steam guide pipe, and the anti-suckback hole has no time to discharge the liquid, and the liquid still pours into the steam inlet from the steam guide pipe, causing pollution to the pot cover; if the lowest end of the anti-suckback hole and the second If the distance between the highest ends of the steam outlet is greater than 50mm, the distance between the two is too large. In addition to the need to lengthen the overall length of the steam guide pipe, the height of the corresponding pot needs to be increased, and the influx of liquid into the steam guide pipe will not exceed 50mm. , that is, the structure with or without anti-suckback holes has no effect on the anti-suckback.

The above-mentioned steam guiding pipe is made of hard plastic. Hard plastic is used to facilitate steam drainage, and prevent the steam guide tube from being bent after being inserted into the liquid and touching hard objects, which is not conducive to steam discharge; in addition, the steam pipe formed by the steam guide tube has the same cross-sectional aperture from top to bottom, and the steam flow rate relatively stable.

Above-mentioned pot body adopts insulation pot body. The use of the heat preservation pot ensures that no matter whether steam heating or other heating methods are used, the heat locking ability of the pot body can be improved, so that the heat energy will not be lost and energy saving.

Wherein the steam cooking rice cooker of each above-mentioned embodiment is preferably used for cooking rice.

The structural features between the above-mentioned embodiments can be combined with each other to obtain other embodiments without conflicts, and the new embodiments obtained do not deviate from the creative spirit of the present invention, and should also belong to the protection of the present invention. Content.

1‧‧‧machine head

10‧‧‧open space

11‧‧‧Steam outlet

12‧‧‧Steam discharge inlet

100‧‧‧body

200‧‧‧cookware

4‧‧‧Commitment department

41‧‧‧Steam inlet

42‧‧‧Steam discharge outlet

Claims (9)

A steam cooking rice cooker, including a body and a pot, is characterized in that: the body is provided with a steam generating device, and an open space is provided on the side of the body, and a machine head is provided on the top of the open space, and the open space is used for For placing the pot, the pot includes a pot body and a pot cover. The pot cover is provided with a receiving part docked with the machine head. The machine head is provided with a steam outlet. The steam outlet communicates with the steam generating device. The steam outlet is used for docking with the steam inlet, and the steam inlet is detachably connected with a steam guide pipe, and the steam guide pipe includes at least one second steam outlet on the side, and the steam guide pipe is located in the center of the pot cover area, the steam is guided to the pot body for cooking through the steam guide pipe. A steam cooking rice cooker according to claim 1, wherein the machine head can be stretched up and down, and the machine head can be stretched to connect and separate the steam outlet and the steam inlet. A steam cooking rice cooker as claimed in item 1, wherein a first sealing structure is provided between the steam outlet and the steam inlet, and the first sealing structure connects the two The gap between them is sealed. A steam cooking rice cooker according to claim 3, wherein one of the steam outlet and the steam inlet can be inserted into the other to achieve docking, and there is a gap between the steam outlet and the steam inlet when they are docked The first sealing structure is located in or partially protrudes into the interval gap to seal the interval gap. A steam cooking rice cooker according to claim 1, wherein, the machine head is also provided with a steam discharge inlet, and the receiving part is also provided with a steam discharge outlet. When the machine head and the receiving part are docked, the steam discharge inlet and the steam discharge Export docking connection. A steam cooking rice cooker as described in claim 5, wherein the steam discharge inlet and the steam discharge A second sealing structure is provided between the outlet and the outlet, and the second sealing structure seals the gap between the steam discharge inlet and the steam discharge outlet when they are docked. A rice cooker for steam cooking according to claim 1, wherein the steam guiding pipe includes a first steam outlet at the lower end. A steam cooking rice cooker according to claim 1, wherein the steam inlet is located in the middle of the pot cover. A steam cooking rice cooker according to Claim 1, wherein the pot body is a heat preservation pot body.

Images