Cooking utensils

Abstract

The present invention discloses a cooking utensil, comprising: an outer shell and an inner liner, wherein the inner liner has a containing cavity for placing food, and a heat dissipation duct is constructed between the inner liner and the outer shell; a fan connected to the outer shell, wherein the air outlet of the fan is located in the heat dissipation duct; and an air guide member located in the heat dissipation duct, wherein the air guide member is used to limit the flow direction of the heat dissipation airflow blown out by the fan. The fan draws air from the outside of the outer shell to form a heat dissipation airflow, and the heat dissipation airflow flows in the heat dissipation duct between the outer shell and the inner liner to cool the heat-generating components of the cooking utensil. The air guide member is used to limit the flow direction of the heat dissipation airflow, and more heat dissipation airflow is directed to high-temperature parts to prevent heat accumulation and local overheating. The heat dissipation effect of the cooking utensil is uniform, and the stable operation of the cooking utensil is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen equipment, in particular to a cooking utensil. Background Art

[0002] At present, most cooking appliances used in kitchens, such as microwave ovens and ovens, are heated by electricity. Usually, the cooking appliances draw air from the outside through cooling fans to blow air to the heat-generating components inside the cooking appliances to dissipate heat. However, the cooling airflow in the cooking appliances is currently chaotic and the cooling effect is uneven, resulting in heat accumulation in some areas of the cooking appliances and excessively high temperatures, which affects the operation of the cooking appliances. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a cooking utensil provided with an air guide to control the flow direction of the heat dissipation airflow and improve the uniformity of heat dissipation.

[0004] The cooking utensil according to an embodiment of the present invention comprises: an outer shell and an inner pot, wherein the inner pot has a containing cavity for placing food, and a heat dissipation duct is constructed between the inner pot and the outer shell; a fan connected to the outer shell, and an air outlet end of the fan is located in the heat dissipation duct; an air guide member is located in the heat dissipation duct, and the air guide member is used to limit the flow direction of the heat dissipation airflow blown out by the fan.

[0005] The cooking appliance according to the embodiment of the present invention has at least the following beneficial effects: the fan draws air from the outside of the outer shell to form a heat dissipation airflow, the heat dissipation airflow flows in the heat dissipation air duct between the outer shell and the inner pot to cool the heat-generating components of the cooking appliance, the air guide member is used to limit the flow direction of the heat dissipation airflow, and more heat dissipation airflow is directed to high-temperature parts to prevent heat accumulation and local overheating, and the heat dissipation effect of the cooking appliance is uniform, ensuring the stable operation of the cooking appliance.

[0006] According to some embodiments of the present invention, the inner tank is connected to a first heating element, the fan and the first heating element are located on a side of the inner tank, and the air guide element includes a first air guide strip, which is located below the first heating element so that part of the heat dissipation airflow flows to the first heating element.

[0007] According to some embodiments of the present invention, an air outlet is provided at the bottom of the housing, and the first air guide strip is located between the air outlet and the fan.

[0008] According to some embodiments of the present invention, the inner tank is connected to a second heating element, which is located above the first heating element. The air guide element includes a second air guide strip, which is located above the first heating element so that part of the heat dissipation airflow flows to the second heating element.

[0009] According to some embodiments of the present invention, the second heating element is located between the second air guide strip and the fan.

[0010] According to some embodiments of the present invention, the inner tank is connected to a heat insulation cover, the heat insulation cover covers the second heating element, and one end of the heat insulation cover facing the fan has a first opening connected to the heat dissipation duct.

[0011] According to some embodiments of the present invention, the second heating element and the heat insulation cover are located on the top surface of the inner tank on the side facing the fan, and the air guide member includes a third air guide strip, which partially blocks the heat dissipation air duct above the top surface of the inner tank.

[0012] According to some embodiments of the present invention, one end of the third air guide strip facing away from the heat insulation cover is bent and faces the fan.

[0013] According to some embodiments of the present invention, the air guide member further includes a fourth air guide strip, and the fourth air guide strip and the third air guide strip are disposed at two ends of the heat insulation cover.

[0014] According to some embodiments of the present invention, the air guide is a metal sheet or a sponge strip.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Additional aspects and advantages of the present invention will become apparent and readily understood from the following description of embodiments in conjunction with the accompanying drawings, in which:

[0017] Figure 1 It is a schematic diagram of the main structure of the cooking utensils in some embodiments of the present invention;

[0018] Figure 2 A top view of a cooking appliance according to some embodiments of the present invention;

[0019] Figures 3 to 5 Schematic diagram of an exploded view of a cooking appliance according to some embodiments of the present invention.

[0020] The figures are as follows:

[0021] Housing 100, air outlet 101, heat dissipation duct 110;

[0022] Inner liner 200, accommodating cavity 201, first heating element 210, second heating element 220, heat shield 230, first opening 231, second opening 232;

[0023] Fan 300;

[0024] The air guide member 400 , the first air guide strip 410 , the second air guide strip 420 , the third air guide strip 430 , and the fourth air guide strip 440 . DETAILED DESCRIPTION

[0025] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0026] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In the description of the present invention, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0028] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0029] At present, cooking appliances draw air from the outside through cooling fans and blow air into the cooking appliances to dissipate heat so as to remove the heat of heating devices and electrical components. However, the flow direction of the cooling airflow in the cooking appliances is chaotic, and part of the cooling airflow is directly discharged without passing through the heating devices or electrical components, resulting in uneven cooling effect, which causes heat accumulation in some areas of the cooking appliances and excessively high temperatures, affecting the operation of the cooking appliances.

[0030] Reference Figures 1 to 3The embodiment of the present invention provides a cooking utensil, comprising: an outer shell 100 and an inner liner 200, wherein the inner liner 200 is arranged inside the outer shell 100, and the inner liner 200 has a receiving cavity 201, and food is placed in the receiving cavity 201 for heating and cooking. Taking a microwave-steam-bake integrated cooking utensil as an example, the microwave-steam-bake integrated cooking utensil has three functions of microwave heating, steam heating and baking heating, and has many heat-generating components which are dispersedly arranged, and requires uniform and efficient heat dissipation. A heat dissipation duct 11 is constructed between the inner liner 200 and the outer shell 100 of the cooking utensil. 0; the fan 300 is connected to the housing 100, and the air outlet end of the fan 300 is located in the heat dissipation duct 110 to blow heat dissipation airflow into the heat dissipation duct 110, and the heat dissipation airflow takes away the excess heat of the heat-generating components to achieve cooling; an air guide 400 is installed in the heat dissipation duct 110, and the air guide 400 is used to limit the flow direction of the heat dissipation airflow blown by the fan 300, so that more heat dissipation airflow flows to the heat-generating components, thereby improving the heat dissipation speed and uniformity. It can be understood that the air guide 400 can be one or more, depending on the distribution positions of the heat-generating components.

[0031] When the cooking appliance is running, the fan 300 draws air from the outside of the outer shell 100 to form a heat dissipation airflow, and the heat dissipation airflow flows in the heat dissipation air duct 110 between the outer shell 100 and the inner pot 200 to cool the heat-generating components of the cooking appliance. The air guide 400 is used to limit the flow direction of the heat dissipation airflow, and more heat dissipation airflow is guided to the high-temperature parts where the heat-generating components are located, thereby eliminating local overheating due to heat accumulation. The heat dissipation effect of the cooking appliance is uniform, ensuring the stable operation of the cooking appliance.

[0032] Reference Figure 1 , Figure 3 and Figure 4According to some embodiments of the present invention, the inner pot 200 is connected to the first heating element 210, the fan 300 and the first heating element 210 are located on the same side of the inner pot 200, and the air guide 400 includes a first air guide strip 410, and the first air guide strip 410 is located below the first heating element 210 to divert part of the heat dissipation airflow to the first heating element 210. It can be understood that the first heating element 210 is a microwave generator (such as a magnetron) for generating microwaves to heat the food in the accommodating cavity 201, the fan 300 and the first heating element 210 are located on the same side of the inner pot 200, and the first heating element 210 is arranged in the air outlet direction of the fan 300, and the heat dissipation airflow blown by the fan 300 flows directly to the first heating element 210, which has an efficient and direct heat dissipation effect. Since the heat dissipation air duct 110 surrounds the inner pot 200, the heat dissipation airflow blown by the fan 300 is quickly dispersed, which is not conducive to the cooling of the first heating element 210, so the first air guide strip 410 is arranged below the first heating element 210, and the first air guide strip 410 is used to heat the food in the accommodating cavity 201. The air strip 410 reduces the amount of heat dissipation airflow flowing from the heat dissipation air duct 110 below the first heating element 210, and promotes more heat dissipation airflow to flow through the first heating element 210, thereby improving the cooling effect on the first heating element 210. The length direction of the first air guide strip 410 is roughly along the direction from the fan 300 to the first heating element 210. The first air guide strip 410 does not completely close the heat dissipation air duct 110 below the first heating element 210. The first air guide strip 410 blocks about 70% of the area of ​​the heat dissipation air duct 110, ensuring that part of the heat dissipation airflow still flows from the heat dissipation air duct 110 below the first heating element 210 to cool the inner liner 200 and other components. The first air guide strip 410 can be set on the bottom surface of the inner liner 200, and the first air guide strip 410 extends toward the bottom of the outer shell 100. The first air guide strip 410 can also be set on the side of the inner liner 200 where the first heating element 210 is installed, both of which can promote more heat dissipation airflow to flow through the first heating element 210.

[0033] Reference Figure 1 , Figure 3 and Figure 4 According to some embodiments of the present invention, it is understood that the fan 300 is usually installed on the rear panel of the housing 100, and the rear panel is provided with an air suction hole for the fan 300 to draw in the outside air. A plurality of air outlet holes 101 are provided at the bottom of the housing 100. The heat dissipation airflow blown out by the fan 300 flows through the heat dissipation air duct 110 and is finally discharged from the air outlet hole 101. The first air guide strip 410 is arranged between the air outlet hole 101 and the fan 300, which greatly reduces the amount of heat dissipation airflow directly discharged from the air outlet hole 101, and promotes most of the heat dissipation airflow to flow to the first heating element 210, thereby improving the heat dissipation capacity. It is understood that the bottom of the housing 100 is provided with a surrounding edge surrounding the plurality of air outlet holes 101. The first air guide strip 410 cooperates with the surrounding edge to further reduce the heat dissipation airflow directly flowing to the air outlet hole 101, thereby improving the utilization efficiency of the heat dissipation airflow.

[0034] Reference Figure 1 , Figure 3 and Figure 5 According to some embodiments of the present invention, it can be understood that the inner tank 200 is also connected to a second heating element 220, which is a heating pipe assembly. The heating pipe assembly provides heat to the accommodating cavity 201 to bake food. The shell of the heating pipe assembly is also heated to a high temperature, and the heat dissipation gas is used to cool the shell of the heating pipe assembly. The second heating element 220 is located above the first heating element 210, and the two are separated by a certain distance to reduce heat accumulation. The air guide member 400 includes a second air guide strip 420, and the second air guide strip 420 is located above the first heating element 210 to allow part of the heat dissipation airflow to flow to the second heating element 220. Since the first heating element 210 is arranged in the air outlet direction of the fan 300, and the second heating element 220 is located above the first heating element 210, the second heating element 220 deviates from the air outlet direction of the fan 300. In order to encourage more heat dissipation airflow to be diverted to the second heating element 220, the second air guide strip 420 is arranged above the first heating element 210. It can be seen that the second air guide strip 420 intersects with the air outlet direction of the fan 300, and it is a better solution that the second air guide strip 420 is perpendicular to the air outlet direction of the fan 300. The blocking effect of the second air guide strip 420 is utilized to make part of the heat dissipation airflow divert and flow through the second heating element 220, thereby improving the cooling effect on the second heating element 220 and preventing the area where the second heating element 220 is located from overheating. Similarly, the second air guide strip 420 does not completely close the heat dissipation air duct 110 above the first heat generating element 210. The second air guide strip 420 blocks about 70% of the area of ​​the heat dissipation air duct 110, ensuring that some heat dissipation airflow still flows through the heat dissipation air duct 110 above the first heat generating element 210 to cool the inner tank 200 and other components.

[0035] Reference Figure 1 According to some embodiments of the present invention, the second heat generating element 220 is located between the second air guide strip 420 and the fan 300, and the second air guide strip 420 is arranged at a side position close to the second heat generating element 220. The heat dissipation airflow turned by the second air guide strip 420 blows directly toward the second heat generating element 220, and the heat dissipation airflow can fully contact the second heat generating element 220, thereby improving the heat dissipation effect.

[0036] Reference Figure 1 , Figure 3 and Figure 5According to some embodiments of the present invention, the inner tank 200 is connected to a heat insulation cover 230, and the heat insulation cover 230 covers the outside of the second heating element 220. The function of the heat insulation cover 230 is to isolate the second heating element 220 and prevent the high temperature of the second heating element 220 from being transmitted to the outer shell 100. Therefore, the heat insulation cover 230 surrounds the second heating element 220, and there is a gap between the heat insulation cover 230 and the second heating element 220. By using air insulation, the end of the heat insulation cover 230 facing the fan 300 has a first opening 231 connected to the heat dissipation duct 110. The heat dissipation airflow turned by the second air guide strip 420 flows through the outer wall of the heat insulation cover 230 to take away heat and reduce the temperature of the heat insulation cover 230. On the other hand, the heat dissipation airflow enters the gap between the heat insulation cover 230 and the second heating element 220 from the first opening 231, replaces the air in the gap, and also helps to reduce the temperature of the heat insulation cover 230. The second air guide strip 420 guides part of the heat dissipation airflow to the heat insulation cover 230 , which is helpful to eliminate the heat accumulation at the location of the heat insulation cover 230 , prevent local overheating, and greatly improve the heat dissipation speed and uniformity.

[0037] Reference Figure 1 and Figure 2 According to some embodiments of the present invention, the second heating element 220 and the heat shield 230 are located on the top surface of the inner tank 200 on the side facing the fan 300. The heat dissipation airflow blown out by the fan 300 is mainly divided into two streams under the action of the first air guide strip 410 and the second air guide strip 420, one stream blows toward the first heating element 210, and the other stream blows toward the second heating element 220. The second heating element 220 and the heat shield 230 are arranged at a position close to the fan 300 to prevent the heat dissipation air blowing toward the second heating element 220 from The airflow flows through the first heating element 210, preventing the heat dissipation airflow from heating up, and ensuring the cooling effect on the second heating element 220; the air guide member 400 also includes a third air guide strip 430, which partially blocks the heat dissipation air duct 110 above the top surface of the inner liner 200. The heat dissipation airflow after passing through the first heating element 210 flows to the heat dissipation air duct 110 above the top surface of the inner liner 200. The heat dissipation airflow is guided to the heat insulation cover 230 by the blocking of the third air guide strip 430, further improving the cooling of the heat insulation cover 230. It can be understood that, referring to Figure 4 A second opening 232 is provided on the side of the heat insulation cover 230 facing the third air guide strip 430. The heat dissipation airflow guided by the third air guide strip 430 can enter the gap between the heat insulation cover 230 and the second heating element 220 from the second opening 232, taking away the heat of the heat insulation cover 230 and the shell of the second heating element 220, which helps to reduce the temperature of the heat insulation cover 230.

[0038] Reference Figure 1 and Figure 2According to some embodiments of the present invention, one end of the third air guide strip 430 away from the heat insulation cover 230 is bent and toward the fan 300. The bent third air guide strip 430 helps to drive the heat dissipation airflow to turn, reduce flow resistance, reduce the speed loss of the heat dissipation airflow, and ensure the flow rate of the heat dissipation airflow through the heat insulation cover 230; considering that the third air guide strip 430 does not completely close the heat dissipation air duct 110 above the top surface of the inner liner 200, the bent third air guide strip 430 can guide more heat dissipation airflow to flow to the heat insulation cover 230, which helps to improve the heat dissipation effect of the heat insulation cover 230.

[0039] Reference Figure 1 and Figure 2 According to some embodiments of the present invention, the air guide member 400 further includes a fourth air guide strip 440, and the fourth air guide strip 440 and the third air guide strip 430 are disposed at both ends of the heat shield 230. An air guide channel is formed between the fourth air guide strip 440 and the third air guide strip 430, which guides the heat dissipation airflow to the heat shield 230, thereby ensuring that the heat shield 230 is cooled as a whole and the heat dissipation effect is more uniform. It is understandable that sufficient space is reserved at both ends of the third air guide strip 430 for the heat dissipation airflow to pass through, thereby reducing the flow resistance of the heat dissipation airflow and ensuring that the heat dissipation airflow has a sufficient flow rate.

[0040] Reference Figure 1 and Figure 3 According to some embodiments of the present invention, the air guide member 400 is a metal sheet, which can be fixed to the inner pot 200 or the outer shell 100 by welding or by screws; or the air guide member 400 is a sponge strip, which has a small specific gravity and helps to reduce the weight of the cooking utensil, and the sponge strip can be bonded to the inner pot 200 or the outer shell 100 by glue.

[0041] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A cooking utensil, characterized in that: include: shell; An inner liner has a containing cavity, and a heat dissipation duct is constructed between the inner liner and the outer shell; A fan connected to the housing, wherein an air outlet of the fan is located in the heat dissipation duct; An air guide member, located in the heat dissipation air duct, and used to limit the flow direction of the heat dissipation airflow blown out by the fan; The inner tank is connected to a first heating element, the fan and the first heating element are located on a side of the inner tank, the air guide member includes a first air guide strip, the first air guide strip is located below the first heating element so that part of the heat dissipation airflow flows to the first heating element, an air outlet is provided at the bottom of the outer shell, the first air guide strip is located between the air outlet and the fan, the inner tank is connected to a second heating element, the second heating element is located above the first heating element, the air guide member includes a second air guide strip, the second air guide strip is located above the first heating element so that part of the heat dissipation airflow flows to the second heating element, and the second heating element is located between the second air guide strip and the fan.

2. The cooking device according to claim 1, characterized in that: The inner tank is connected to a heat insulation cover, the heat insulation cover covers the second heating element, and one end of the heat insulation cover facing the fan has a first opening connected to the heat dissipation duct.

3. The cooking device according to claim 2, characterized in that: The second heating element and the heat insulation cover are located on the top surface of the inner tank on a side facing the fan, and the air guide member includes a third air guide strip, which partially blocks the heat dissipation air duct above the top surface of the inner tank.

4. The cooking device according to claim 3, characterized in that: One end of the third air guide strip facing away from the heat insulation cover is bent and faces the fan.

5. The cooking device according to claim 3, characterized in that: The air guide member further includes a fourth air guide strip, and the fourth air guide strip and the third air guide strip are disposed at two ends of the heat insulation cover.

6. The cooking device according to any one of claims 1 to 5, characterized in that: The air guide member is a metal sheet or a sponge strip.

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