Cooling box and electric pressure cooker

Abstract

The present application provides a cooling box and an electric pressure cooker. A cooling box is used to cooperate with the lid assembly of the electric pressure cooker to reduce the temperature of the lid assembly. The cooling box includes a receiving cavity for receiving a cooling substance. The lower side of the cooling box is attached to the lid assembly. The upper side of the cooling box is provided with a filling port for injecting the cooling substance into the receiving cavity. The upper side of the cooling box is further provided with a handle portion for facilitating the taking and placing of the cooling box. The handle portion has a surface convenient for fingers to hold, and the surface is provided with concave holes and is convenient for heat dissipation of the handle portion. The handle portion is used for holding by hand to facilitate the taking and placing of the cooling box.

Description

Technical Field

[0001] This application relates to the field of small household appliances, and particularly to a cooling box and an electric pressure cooker. Background Art

[0002] In order to adapt to people's fast-paced modern life, kitchen cooking appliances are developing in the direction of being fast and convenient. Among them, electric pressure cookers are widely loved by people because they can cook quickly and the nutrients of the cooked food are less lost. Moreover, they have become one of the electrical appliances with rapid growth in the household appliance industry due to saving time, electricity, and being convenient and fast. However, after quickly cooking delicious food, the traditional electric pressure cooker cannot be quickly opened because of the high temperature and high pressure inside, which has become the biggest trouble for users of electric pressure cookers. U.S. Patent Publication No. 20180328645 discloses a cooling box. The cooling box is placed on the lid of the electric pressure cooker to reduce the temperature of the lid. However, the cooling box has no handle, which is inconvenient to take and place. Summary of the Invention

[0003] This application provides a cooling box and an electric pressure cooker, which are convenient to take and place the cooling box.

[0004] This application provides a cooling box, which is used to cooperate with the lid assembly of an electric pressure cooker to reduce the temperature of the lid assembly. The cooling box includes a receiving cavity for receiving a cooling substance. The lower side of the cooling box is attached to the lid assembly. The upper side of the cooling box is provided with an injection port for injecting the cooling substance into the receiving cavity. The upper side of the cooling box is further provided with a handle part for facilitating the taking and placing of the cooling box. The handle part has a surface convenient for fingers to hold. The surface is provided with concave holes and is convenient for the handle part to dissipate heat.

[0005] Further, the concave holes penetrate through the handle part for fingers to pass through, so as to facilitate the taking and placing of the cooling box.

[0006] Further, the cooling box includes an upper cover and a lower cover fixed together. The lower cover is attached to the lid assembly. The upper cover is integrally formed and fixed to the lower cover by air rubber. The handle part is arranged on the upper cover. The part of the handle part for fingers to pass through is annular. The width of the annular part in the penetrating direction of the fingers is more than 10 millimeters.

[0007] Further, the air rubber is resistant to thermal shock temperature greater than or equal to -20 degrees Celsius and less than or equal to 300 degrees Celsius.

[0008] Further, the cooling box includes at least one rib part located in the concave hole to enhance the strength of the handle part.

[0009] Further, the rib parts are provided in plurality, and the plurality of rib parts are arranged in a cross pattern.

[0010] Further, two of the plurality of rib portions pass through the center of the concave hole and are vertically arranged.

[0011] Further, the cooling box includes an upper cover and a lower cover fixed together, the lower cover is attached to the pot lid assembly, the upper cover includes a main body portion for enclosing the receiving cavity, the handle portion includes a transition portion extending from the main body portion and a hand-held portion extending from the transition portion, the concave hole is provided in the hand-held portion, the main body portion forms a flared shape that enlarges downward, the transition portion protrudes obliquely upward, and the handle portion extends upward beyond the upper end of the main body portion.

[0012] Further, the transition portion makes the distance between the inner surface of the concave hole and the outer surface of the main body portion greater than 5 millimeters.

[0013] Further, the upper cover includes a water level line provided on the main body portion, and the water level line is close to the handle portion.

[0014] The present application also provides an electric pressure cooker, including a pot body, a pot lid assembly assembled to the pot body, and the above-mentioned cooling box, and at least a part of the cooling box is attached to the surface of the pot lid assembly.

[0015] Further, the pot lid assembly includes a base portion and a hand-held portion extending from the base portion, a space is formed between the base portion and the hand-held portion, and at least a part of the cooling box is located in the space.

[0016] The cooling box of the present application includes a handle portion to facilitate taking and placing the cooling box. At the same time, the handle portion is provided with a concave hole, which is beneficial to reducing the temperature of the handle portion and preventing scalding the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a perspective view of the electric pressure cooker of the present application, wherein the cooling box is not assembled to the pot lid assembly.

[0018] Figure 2 is a side view of the cooling box of the present application.

[0019] Figure 3 is Figure 2 an exploded view of the cooling box shown in

[0020] Figure 4 is Figure 2 a schematic cross-sectional view of the cooling box shown in

[0021] Figure 5 is Figure 4 an enlarged view of the circled part of the schematic cross-sectional view shown in

[0022] Figure 6 is a side view of another embodiment of the cooling box of the present application. Detailed implementation manners

[0023] Here, the exemplary implementation manners will be described in detail, and examples thereof are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary implementation manners do not represent all implementation manners consistent with the present application. On the contrary, they are merely examples of devices consistent with some aspects of the present application as detailed in the appended claims.

[0024] The terms used in the present application are only for the purpose of describing specific implementation manners and are not intended to limit the present application. Unless otherwise defined, the technical terms or scientific terms used in the present application should have the ordinary meanings understood by those of ordinary skill in the art to which the present application belongs. The terms "first", "second" and similar words used in the specification and claims of the present application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "a" or "an" do not indicate a quantity limitation, but indicate that there is at least one. "Plurality" or "several" means two or more. Unless otherwise specified, words such as "front part", "rear part", "lower part" and / or "upper part" are only for convenience of description and are not limited to one position or a spatial orientation. The words such as "include" or "comprise" mean that the elements or objects appearing before "include" or "comprise" cover the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. The words such as "connect" or "couple" are not limited to physical or mechanical connections, and may include electrical connections, whether direct or indirect. The singular forms "a", "the" and "said" used in the specification and appended claims of the present application are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0025] See Figure 1As shown, the electric pressure cooker of the present application includes a pot body 1, a lid assembly 2, and a cooling box 3. The pot body 1 includes an outer shell 10, a heat preservation cover (not shown) located inside the outer shell 10, and a pot liner (not shown) placed inside the heat preservation cover. The heat preservation cover is made of a metal material. The pot liner is used to hold food. The lid assembly 2 includes a base 20 and a hand-held portion 21 extending from the base 20. A space 210 is formed between the base 20 and the hand-held portion 21. The hand-held portion 21 is for an operator to hold, so as to facilitate assembling the lid assembly 2 to the pot body 1 and removing the lid assembly 2 from the pot body 1. The cooling box 3 is at least located inside the space 210 to fix the cooling box 3 to the lid assembly 2.

[0026] Referring to Figures 2 to 5 As shown, the cooling box 3 includes an upper cover 30 and a lower cover 31 assembled together. The upper cover 30 and the lower cover 31 enclose a receiving cavity 33. The receiving cavity 33 is used to receive a cooling substance. At least a part of the lower cover 31 is attached to the lid assembly 2. The lower cover 31 is made of a heat-conducting metal material, such as aluminum alloy, etc., so as to conduct the heat of the lid assembly 2 to the cooling substance through the lower cover 31 to reduce the heat of the lid assembly 2. The cooling substance can be water, ice cubes, etc. Water is preferably frozen to enhance the cooling effect. The receiving cavity 33 includes a first receiving cavity 330 surrounded by the upper cover 30 and a second receiving cavity 331 surrounded by the lower cover 31.

[0027] The upper cover 30 is made of a heat-insulating plastic flexible material, such as aerogel rubber, to prevent the upper cover 30 from overheating and causing scalding. The aerogel rubber can withstand thermal shock temperatures greater than or equal to -20 °C and less than or equal to 300 °C. At the same time, the upper cover 30 can be deformed under force, which can prevent the cooling substance from solidifying and damaging the upper cover 30. For example, when water freezes, it can cause damage to the upper cover 30. Moreover, the upper cover 30 can be deformed under force, which also facilitates its assembly into the space 210 of the pot lid assembly 2, and the pot lid assembly 2 can firmly hold the cooling box 3. The upper cover 30 includes a main body portion 301 that encloses the first receiving cavity 330, a handle portion 303 and a holding portion 302 that extend from the main body portion 301, and a water level line 304 that is provided on the main body portion 301 and is close to the handle portion 303. The water level line 304 prevents the water in the receiving cavity 33 from overflowing due to excessive amount. The main body portion 301 is formed in a flared shape that widens downward, and includes opposite first and second ends 3010 and 3011. The second end 3011 encloses an opening 3013 facing the lower cover 31. The first end 3010 encloses an injection port 3012 that is generally elliptical in shape. The cross-sectional area of the opening 3013 is larger than the cross-sectional area of the injection port 3012. The opening 3013 and the injection port 3012 communicate with the first receiving cavity 330. The injection port 3012 is used for filling the cooling substance into the receiving cavity 33.

[0028] The handle portion 303 is close to the first end 3010, and the handle portion 303 facilitates the user to pick up and place the cooling box 3. The handle portion 303 includes a transition portion 3030 extending from the main body portion 301 and a ring-shaped hand-held portion 3031 extending from the transition portion 3030. The hand-held portion 3031 is provided with a concave hole 30310. The transition portion 3030 protrudes obliquely upward, and the handle portion 303 extends upward beyond the upper end of the main body portion 301. The width of the ring-shaped portion in the penetrating direction of the fingers is greater than or equal to 10 mm to increase the strength of the hand-held portion 3031. The transition portion 3030 makes the distance between the inner surface of the concave hole 30310 and the outer surface of the main body portion 301 greater than 5 mm to reduce the heat of the hand-held portion 3031 and prevent scalding the operator. The hand-held portion 3031 has a surface convenient for the fingers to pick up. The concave hole 30310 is provided on the surface, so that the hand-held portion 3031 is ring-shaped. The concave hole 30310 allows the fingers to pass through to hook the hand-held portion 3031, making it more convenient to exert force when picking up and placing the cooling box 3 and preventing the cooling box 3 from falling; at the same time, the concave hole 30310 is also beneficial for heat dissipation to reduce the temperature of the hand-held portion 3031 and prevent scalding the operator. The top end of the hand-held portion 3031 is higher than the first end 3010, so that the hand-held portion 3031 is away from the main body portion 301 to reduce the heat of the hand-held portion 3031 and prevent scalding the operator. A depression 30301 is provided at approximately the middle position of the transition portion 3030 to reduce the thickness of the transition portion 3030, which is beneficial for heat dissipation and prevents the hand-held portion 3031 from scalding the operator; at the same time, the depression 30301 does not weaken the connection strength between the transition portion 3030 and the main body portion 301 and the hand-held portion 3031, preventing the handle portion 303 from breaking.

[0029] The holding portion 302 is close to the second end 3011. The holding portion 302 is formed by extending from the main body portion 301 horizontally to one side. The holding portion 302 includes a connecting portion 3021 connected to the main body portion 301 and an abutting portion 3022 extending vertically from the connecting portion 3021.

[0030] The lower cover 31 includes a bottom wall 310, a side wall 311 extending from the bottom wall 310, and a fixing portion 312 extending from the side wall 311. The bottom wall 310 and the side wall 311 define the second receiving cavity 331. The second end 3011 of the upper cover 30 is located within the second receiving cavity 331 and is in contact with the side wall 311, effectively ensuring the sealing performance of the cooling box and preventing water leakage. The shape of the bottom wall 310 is the same as the shape of the surface of the pot lid assembly 2, effectively ensuring the close contact between the bottom wall 310 and the pot lid assembly 2 and further effectively ensuring the heat conduction effect of the bottom wall 310. The fixing portion 312 includes a first abutting portion 3120 that arches upward from the side wall 311 and a covering portion 3122 extending from the first abutting portion 3120. The first abutting portion 3120 is in close contact with the connecting portion 3021, effectively ensuring the sealing performance of the cooling box and preventing water leakage. The abutting portion 3022 is located within the accommodating portion 3123 defined by the covering portion 3122 and the covering portion 3122 is in contact with the abutting portion 3022, effectively ensuring the sealing performance of the cooling box, preventing water leakage and enhancing the aesthetics of the cooling box. In the illustrated embodiment, the covering portion 3122 is in contact with the abutting portion 3022 and is not in contact with the connecting portion 3021. In other embodiments, the covering portion 3122 may not be in contact with the abutting portion 3022, and may only be in contact with the connecting portion 3021 or be in contact with both the abutting portion 3022 and the connecting portion 3021 at the same time, all of which can achieve the purpose of sealing and waterproofing.

[0031] In the illustrated embodiment, the upper cover 30 is made of air rubber. Compared with the lower cover 31 made of metal, the heat conductivity of the upper cover 30 is reduced, which can not only prevent the upper cover 30 from overheating and causing burns, but also reduce costs. The upper cover 30 can also be made of other non-metallic materials, such as plastics.

[0032] See Figure 6 As shown, in another embodiment, the cooling box 3 of the present application includes at least one rib portion 30311 located within the concave hole 30310 to strengthen the strength of the hand-held portion 3031 and prevent the hand-held portion 3031 from deforming or breaking. The plurality of rib portions 30311 can be arranged in parallel or crosswise. In one embodiment, two of the rib portions 30311 pass through the center of the hand-held portion 3031 and are perpendicularly arranged, which is beneficial to processing and manufacturing. When taking and placing the cooling box 3, fingers can pass through the concave hole 30310 to hook the hand-held portion 3031 or fingers can pinch the hand-held portion 3031 to take and place the cooling box 3.

[0033] The cooling box of the present application includes a handle portion 303. The handle portion 303 is provided with a concave hole 30310 to facilitate gripping the handheld portion 3031. At the same time, the concave hole 30310 is beneficial to reducing the temperature of the handle portion 303 and preventing scalding the operator. Moreover, the concave hole 30310 allows fingers to pass through to hook the handle portion 303, making it more convenient and labor-saving to pick up and place the cooling box. The top end of the handheld portion 3031 is higher than the first end 3010, so that the handheld portion 3031 is away from the main body portion 301 to reduce the heat of the handheld portion 3031 and prevent scalding the operator. The cooling box includes an upper cover 30 and a lower cover 31 made of different materials. The thermal conductivity of the lower cover 31 is greater than that of the upper cover 30, which can prevent the upper cover 30 from overheating and causing scalding, and can also reduce costs. The upper cover 30 is made of a heat-insulating plastic flexible material, such as aerogel rubber, to prevent the upper cover 30 from overheating and causing scalding. At the same time, the upper cover 30 can be deformed to prevent the cooling substance from damaging the upper cover 30 after solidification. For example, the upper cover 30 may be damaged when water freezes. The cooling box is assembled into the space 210 formed between the handheld portion 21 and the base portion 20 of the pot lid assembly 2, which can effectively hold the cooling box without the need for an additional holding structure, and the operation is simple and convenient.

[0034] The above is only a preferred embodiment of the present application and does not impose any form of limitation on the present application. Although the present application has been disclosed above in a preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the disclosed technical content without departing from the technical solution of the present application. However, as long as it does not depart from the technical solution of the present application, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present application still fall within the scope of the technical solution of the present application.

Claims

1. A cooling box, which is used to cooperate with the lid assembly of an electric pressure cooker to reduce the temperature of the lid assembly, and is characterized in that, The cooling box includes a receiving cavity for receiving a cooling substance. The lower side of the cooling box is attached to the pot lid assembly. The upper side of the cooling box is provided with a filling port for injecting the cooling substance into the receiving cavity. The upper side of the cooling box is also provided with a handle part for facilitating the taking and placing of the cooling box. The handle part has a surface convenient for fingers to hold. The surface is provided with concave holes and is conducive to heat dissipation of the handle part. The cooling box includes an upper cover and a lower cover fixed together. The lower cover is attached to the pot lid assembly. The upper cover includes a main body part for enclosing the receiving cavity. The handle part includes a transition part extending from the main body part and a hand-held part extending from the transition part. The concave holes are arranged on the hand-held part. The main body part forms a flared shape that enlarges downward. The transition part protrudes obliquely upward, causing the handle part to extend upward beyond the upper end of the main body part.

2. The cooling box according to claim 1, characterized in that, The concave holes penetrate through the handle part for fingers to pass through, facilitating the taking and placing of the cooling box.

3. The cooling box according to claim 2, wherein The lower cover is attached to the pot lid assembly. The upper cover is integrally formed and fixed to the lower cover by air rubber. The handle part is arranged on the upper cover. The part of the handle part through which fingers pass is annular, and the width of the annular part in the penetration direction of the fingers is more than 10 millimeters.

4. The cooling box according to claim 3, wherein, The air rubber is resistant to thermal shock temperatures greater than or equal to -20 degrees Celsius and less than or equal to 300 degrees Celsius.

5. The cooling box according to claim 1, characterized in that, The cooling box includes at least one rib part located in the concave holes to enhance the strength of the handle part.

6. The cooling box according to claim 5, characterized in that, The rib parts are arranged in multiple numbers, and the multiple rib parts are arranged in a cross pattern.

7. The cooling box according to claim 6, characterized in that, Two of the multiple rib parts pass through the center of the concave holes and are vertically arranged.

8. The cooling box according to claim 1, characterized in that The transition part makes the distance between the inner surface of the concave hole and the outer surface of the main body part greater than 5 millimeters.

9. The cooling box according to claim 1, wherein The upper cover includes a water level line arranged on the main body part, and the water level line is close to the handle part.

10. An electric pressure cooker, characterized in that, It includes a pot body, a pot lid assembly assembled to the pot body, and the cooling box according to any one of claims 1 to 9. At least part of the cooling box is attached to the surface of the pot lid assembly.

11. The electric pressure cooker according to claim 10, wherein, The pot lid assembly includes a base part and a hand-held part extending from the base part. A space is formed between the base part and the hand-held part, and at least part of the cooling box is located in the space.

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