Cooling plate of pressure cooker and pressure cooker

Abstract

The present invention provides a cooling plate of a pressure cooker and the pressure cooker, the pressure cooker comprising a pot cover and a cooling plate, the cooling plate being connected to the pot cover via a connecting piece, the cooling plate forming a curved surface structure and / or the cooling plate being designed to be multiple so as to increase the heat exchange area between the cooling plate and the steam in the pressure cooker. Optionally, the present invention comprises multiple cooling plates, including a first cooling plate and a second cooling plate, the first cooling plate being formed with multiple holes, the second cooling plate being formed with multiple holes, the first and second cooling plates being arranged roughly in parallel, the two being fixed together, and the multiple holes on the first cooling plate being staggered with the multiple holes on the second cooling plate. The present invention optimizes the shape and structure of the cooling plate, thereby increasing the steam cooling contact area, effectively preventing food from spraying out, and shortening the pressure release time.

Description

Technical Field

[0001] The invention relates to a cooling plate of a pressure cooker and the pressure cooker, in particular to a cooling plate of a pressure cooker with a quick cooling function and the pressure cooker. Background Art

[0002] After the food in the pressure cooker is heated to produce high-pressure steam, the exhaust valve opens and begins to discharge the high-pressure steam to achieve the purpose of pressure relief. Due to the excessive pressure in the pot, the current pressure relief time is too long (20-30 minutes), affecting the user experience.

[0003] The investigation found that a pressure cooker currently available on the market uses a top water-cooled insulation cover plate for rapid cooling (see Chinese patent document CN104545427A), but its internal structure is complex and the cooling cavity needs to occupy the inner cover space.

[0004] Chinese patent document CN205053753U discloses a pressure cooker with a relatively simple structure. It uses a special disc on the insulation cover for cooling, but the cooling cavity also takes up space when in use, causing the pot body to become larger. Summary of the invention

[0005] In view of this, the present invention provides a cooling plate of a pressure cooker and a pressure cooker. The present invention realizes rapid cooling by increasing the contact area between the cooling plate and the steam. The present invention adopts a curved cooling plate to effectively prevent food from spraying out and increase the contact area for steam cooling. The single-layer cooling plate is changed to a double-layer to increase the contact area for steam cooling. The above method solves the problem that the internal pressure of the existing pressure cooker is too high after cooking food, and it takes a long time to release the pressure before it can be opened for eating, which takes up the overall cooking time and affects the user experience.

[0006] Specifically: a cooling plate of a pressure cooker, the pressure cooker comprises a pot cover and a cooling plate, the cooling plate is connected to the pot cover via a connecting piece, the cooling plate is formed with a curved surface structure and / or the cooling plate is designed to be multiple to increase the heat exchange area between the cooling plate and the steam in the pressure cooker.

[0007] Preferably, a plurality of air holes are formed on part or all of the cooling plates.

[0008] Preferably, the cooling plate is formed into a curved structure, and a plurality of arc-shaped air holes are formed thereon.

[0009] Preferably, there are multiple cooling plates, including a first cooling plate and a second cooling plate. The first cooling plate is formed with multiple holes, and the second cooling plate is formed with multiple holes. The first and second cooling plates are arranged roughly in parallel and fixed together, and the multiple holes are staggered.

[0010] Preferably, there are multiple cooling plates, including a first cooling plate and a second cooling plate. The size of the first cooling plate is larger than that of the second cooling plate. The second cooling plate has no holes. The first cooling plate is provided with multiple holes, and the edge portion of the first cooling plate that is larger than the second cooling plate has no holes.

[0011] Preferably, the first cooling plate is formed into a curved structure, and the second cooling plate is formed into a flat structure.

[0012] Preferably, the connecting piece includes a telescopic rod and a knob, wherein the knob is located on the pot cover, and the telescopic rod can be driven to move up and down by the knob, thereby driving the cooling plate to move up and down.

[0013] In addition, the present invention further provides a pressure cooker, which comprises the cooling plate of the present invention.

[0014] Preferably, the pot cover also includes an exhaust valve, which includes a two-layer structure, a lower layer being a filtering structure, and an upper layer being an exhaust structure.

[0015] Preferably, the pot cover is made of a material that easily expands when heated.

[0016] Beneficial effects:

[0017] Due to the optimization of the shape and structure of the cooling plate, the steam cooling contact area is increased, which effectively blocks food from spraying out and shortens the pressure release time.

[0018] It is to be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail its exemplary embodiments with reference to the accompanying drawings. The accompanying drawings described below are only some embodiments of the present disclosure, and it is clear to a person skilled in the art that other accompanying drawings can be obtained from these accompanying drawings without creative work.

[0020] Figure 1 A three-dimensional schematic diagram of a cooling plate of a pressure cooker according to a first embodiment of the present invention.

[0021] Figure 2 A schematic front view of a cooling plate of a pressure cooker according to a first embodiment of the present invention.

[0022] Figure 3 A three-dimensional schematic diagram of a cooling plate of a pressure cooker according to a second embodiment of the present invention.

[0023] Figure 4 A schematic front view of a cooling plate of a pressure cooker according to a second embodiment of the present invention.

[0024] Figure 5A three-dimensional schematic diagram of a cooling plate of a pressure cooker according to a third embodiment of the present invention.

[0025] Figure 6 A schematic front view of a cooling plate of a pressure cooker according to a third embodiment of the present invention.

[0026] Figure 7 A three-dimensional schematic diagram of a cooling plate of a pressure cooker according to a fourth embodiment of the present invention.

[0027] Figure 8 A schematic front view of a cooling plate of a pressure cooker according to a fourth embodiment of the present invention.

[0028] Among them, 1-pot cover, 2-cooling plate, 21-first cooling plate, 22-second cooling plate, 23-hole, 3-knob, 4-exhaust valve, 5-connecting piece. DETAILED DESCRIPTION

[0029] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be comprehensive and complete and will fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar parts, and thus their repeated description will be omitted.

[0030] In addition, the described features, structures or characteristics may be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one or more of the specific details, or other methods, components, devices, steps, etc. may be adopted. In other cases, known methods, devices, implementations or operations are not shown or described in detail to avoid blurring the various aspects of the present disclosure.

[0031] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities may be implemented in software form, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0032] It should be understood that although the terms first, second, third, etc. may be used herein to describe various structures, these structures should not be limited by these terms. These terms are used to distinguish one structure from another structure. Therefore, the first structure discussed below can be referred to as the second structure without departing from the teachings of the disclosed concepts. As used herein, the term "and / or" includes any one of the associated listed items and all combinations of one or more.

[0033] Those skilled in the art will appreciate that the drawings are merely schematic diagrams of example embodiments, and the modules or processes in the drawings are not necessarily necessary for implementing the present disclosure, and therefore cannot be used to limit the protection scope of the present disclosure.

[0034] The following is combined with Figure 1-8 The contents of the specific implementation modes of the present invention are described in detail:

[0035] like Figure 1-8 The present invention provides a cooling plate 2 of a pressure cooker, the pressure cooker comprising a pot cover 1 and a cooling plate 2, the cooling plate 2 being connected to the pot cover 1 via a connecting piece 5, the cooling plate 2 being formed with a curved surface structure and / or being designed as a plurality of cooling plates 2 to increase the heat exchange area between the cooling plate 2 and the steam in the pressure cooker. A plurality of air holes 23 are formed on part or all of the cooling plates 2.

[0036] Embodiment 1

[0037] like Figure 1 As shown in FIG. 2 , the pressure cooker of the present invention comprises a pot cover 1 and a cooling plate 2. The flat cooling plate 2 is changed into a curved surface to increase the contact area of ​​steam cooling. The curved air outlet 23 has the effect of blocking food while allowing steam to pass through. The cooling plate 2 is connected to the pot cover 1 and is built into the pot cover 1 .

[0038] The cooling plate 2 is formed into a curved structure, and a plurality of arc-shaped air holes 23 are formed thereon.

[0039] Embodiment 2

[0040] like Figure 3 As shown in FIG. 4 , the cooling plate 2 includes a first cooling plate 21 (upper plate), a second cooling plate 22 (lower plate), and a connecting piece 5. The single-layer cooling plate 2 is changed into a double-layer cooling plate. The lower plate blocks most of the food and allows steam to pass through. The upper plate is parallel to the lower plate in the vertical direction but at different angles, so that the air holes 23 of the upper and lower plates are staggered. The upper plate blocks the remaining food and allows steam to continue to pass through.

[0041] There are multiple cooling plates 2, including a first cooling plate 21 and a second cooling plate 22. The first cooling plate 21 is formed with multiple holes 23, and the second cooling plate 22 is formed with multiple holes 23. The first and second cooling plates 22 are arranged roughly in parallel and fixed together, and the multiple holes 23 are staggered with the multiple holes 23.

[0042] Embodiment 3

[0043] like Figure 5 As shown in Figure 6, the pressure cooker cooling plate 2 includes an upper plate, a lower plate, and a connecting piece 5. The single-layer cooling plate 2 is changed into a double-layer one. The lower plate without holes 23 is slightly smaller than the upper plate, blocking most of the food and allowing the steam to rise from the edge of the lower plate. The upper plate is larger than the edge of the lower plate without holes 23, blocking the remaining food, and the vent holes 23 continue to pass the steam.

[0044] That is, there are multiple cooling plates 2, including a first cooling plate 21 and a second cooling plate 22. The size of the first cooling plate 21 is larger than that of the second cooling plate 22. The first cooling plate 21 has no hole 23. The first cooling plate 21 is provided with multiple holes 23, and the edge portion of the first cooling plate 21 that is larger than the second cooling plate 22 has no hole 23.

[0045] Embodiment 4

[0046] The pressure cooker cooling plate 2 is different from the case 3 in that the upper plate is curved to increase the steam cooling contact area and allow the steam to pass through quickly. The first cooling plate 21 is formed into a curved structure, and the second cooling plate 22 is a flat structure.

[0047] For the first, second, third and fourth embodiments, the cooling plate 2 is connected to the pot cover 1 and built into the pot cover 1. The connecting part between the pot cover 1 and the upper plate and the lower plate is a telescopic rod, and a knob 3 is arranged on the pot cover 1. When in use, the knob 3 is rotated, and the upper plate and the lower plate move downward with the telescopic rod spirally. When the lid is opened, the knob 3 is rotated, and the upper plate and the lower plate rise with the telescopic rod spirally. For example, a commonly used spiral matching method is adopted, such as the telescopic rod includes a circular cylindrical shell and a rod, the rod can rotate relative to the spiral cylinder (thread matching), the rod can be moved to the inside of the shell by rotation, and extended from the shell by rotation, thereby realizing the above-mentioned function. That is, the connecting member 5 includes a telescopic rod and a knob 3, and the knob 3 is located on the pot cover 1. The telescopic rod can be driven to move up and down by the knob 3, thereby driving the cooling plate 2 to move up and down.

[0048] In addition, the present invention further provides a pressure cooker, which comprises the cooling plate 2 of the present invention.

[0049] The present invention can optionally enlarge the exhaust valve 4 on the pot cover 1 and design it into a two-layer structure, the lower layer only filters food, and the upper layer has large holes 23 for exhaust, so that rapid exhaust can be achieved. That is, on the basis of the existing exhaust valve 4, a filtering structure is added to its lower part to block food, and the size of the exhaust hole 23 of the existing exhaust valve 4 can be appropriately increased to accelerate exhaust.

[0050] Optionally, the pot cover 1 is made of a material that is easily expanded when heated. When excessively high-temperature and high-pressure steam is generated in the pot, the heated area of ​​the pot cover 1 increases, and the temperature drops rapidly.

[0051] Optionally, the pot cover 1 is designed to be suspended, and a blocking cover for food to flow out is designed in the pot. When the steam pressure reaches a stable value, the pot cover 1 automatically suspends, the exhaust surface area increases, and the temperature drops quickly. For example, the food blocking cover in the pot is designed to be semicircular, with small holes all over the surface (which can be similar to the small holes on the surface of gauze), connected to the pot cover 1, and the connection method is the same as the above-mentioned cooling plate, wherein the pot cover 1 structure is designed to be similar to the floating structure of the float valve, and after the steam pressure value reaches a stable value, the electromagnetically controlled pot cover is suspended. The electromagnetically controlled pot cover 1 method can adopt the following electric pressure cooker exhaust control method. After the food cooking stage is completed, when the lid is opened when the pressure needs to be reduced, the button is pressed manually (it can also be automatically controlled), the electromagnet of the electromagnetic valve is energized, and the iron core moves during the movement of the pot cover 1 to suspend and exhaust, and the steam escapes into the air through the exhaust hole, and the pressure is automatically reduced. At the same time, the solenoid valve and the pressure detection circuit form a closed loop. When a part of the steam is discharged, the pressure in the pot decreases, the pressure sensor receives a signal, the pressure control switch is disconnected, there is no current in the solenoid valve, the electromagnet returns to its original position, and no more exhaust is performed until the pressure rises again to enter the next cycle, realizing the function of intermittent pressure relief.

[0052] The pressure cooker of the present invention may be an electric pressure cooker.

[0053] Beneficial effects:

[0054] The present invention has at least the following beneficial effects:

[0055] The present invention provides a cooling plate 2 of a pressure cooker and a pressure cooker, the pressure cooker comprising a pot cover 1 and a cooling plate 2, the cooling plate 2 being connected to the pot cover 1 via a connector 5, the cooling plate 2 being formed with a curved surface structure and / or the cooling plate 2 being designed as a plurality to increase the heat exchange area between the cooling plate 2 and the steam in the pressure cooker. The present invention optimizes the shape and structure of the cooling plate 2, thereby increasing the steam cooling contact area, effectively preventing food from spraying out, and shortening the pressure release time. Compared with a top water-cooled heat-insulating cover plate, the cooling plate 2 of the pressure cooker of the present invention has a simple structure design, does not require a water cooling device, and occupies a small space of the pot cover 1.

[0056] The exemplary embodiments of the present disclosure are specifically shown and described above. It should be understood that the present disclosure is not limited to the detailed structures, configurations or implementations described herein; on the contrary, the present disclosure is intended to cover various modifications and equivalent configurations included in the spirit and scope of the appended claims.

Claims

1. A cooling plate (2) for a pressure cooker, the pressure cooker comprising a pot cover (1) and a cooling plate (2), the cooling plate (2) being connected to the pot cover (1) via a connecting piece (5), characterized in that: The cooling plate (2) is built into the pot cover (1), the cooling plate (2) is formed with a curved surface structure and / or the cooling plate (2) is designed to be multiple so as to increase the heat exchange area between the cooling plate (2) and the steam in the pressure cooker; The connecting member (5) comprises a telescopic rod and a knob (3); the knob (3) is located on the pot cover (1); the cooling plate (2) is connected to the telescopic rod; the knob (3) can drive the telescopic rod to move up and down, thereby driving the cooling plate (2) to move up and down; When in use, the knob (3) is rotated, and the cooling plate (2) moves downward along with the telescopic rod in a spiral motion; when the pot lid (1) is opened, the knob (3) is rotated, and the cooling plate (2) moves upward along with the telescopic rod in a spiral motion.

2. The cooling plate (2) according to claim 1, characterized in that: A plurality of air holes (23) are formed on part or all of the cooling plate (2).

3. The cooling plate (2) according to any one of claims 1 and 2, characterized in that: The cooling plate (2) is a single piece and is formed into a curved surface structure, on which a plurality of arc-shaped air holes (23) are formed.

4. The cooling plate (2) according to any one of claims 1 and 2, characterized in that: The cooling disk (2) is multiple, including a first cooling disk (21) and a second cooling disk (22). The first cooling disk (21) is formed with multiple holes (23), and the second cooling disk (22) is formed with multiple holes (23). The first and second cooling disks (22) are arranged roughly in parallel and fixed together. The multiple holes (23) on the first cooling disk (21) and the multiple holes (23) on the second cooling disk (22) are staggered.

5. The cooling plate (2) according to claim 1, characterized in that: The cooling disk (2) is multiple, including a first cooling disk (21) and a second cooling disk (22); the size of the first cooling disk (21) is larger than the size of the second cooling disk (22); the second cooling disk (22) has no hole (23); the first cooling disk (21) is provided with multiple holes (23); and the edge portion of the first cooling disk (21) that is larger than the second cooling disk (22) has no hole (23).

6. The cooling plate (2) according to claim 1, characterized in that: The cooling disk (2) is multiple, including a first cooling disk (21) and a second cooling disk (22); the first cooling disk (21) is formed with multiple holes (23), and the second cooling disk (22) is free of holes (23); the two are fixed together, and the first cooling disk (21) is formed into a curved structure.

7. A pressure cooker, characterized in that: The pressure cooker comprises a cooling plate (2) as described in any one of claims 1 to 6.

8. The pressure cooker according to claim 7, characterized in that: The pressure cooker comprises a pot cover (1), the pot cover (1) also comprises an exhaust valve (4), the exhaust valve (4) comprises a two-layer structure, the lower layer is a filtering structure, and the upper layer is an exhaust structure.

9. The pressure cooker according to claim 7, characterized in that: The pot cover (1) is made of a material that is easily expanded when heated.

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