Air fryer capable of accurately measuring temperature

By setting a leak hole near the temperature sensor probe of the air fryer, the problem of evaporation of water accumulation at the bottom of the inner cavity affecting the accuracy of temperature measurement, achieving more accurate temperature measurement and better food heating effects.

CN222942190UActive Publication Date: 2025-06-06JOYOUNG CO LTD
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Patent Information

Application Number
CN202420831213.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-19
Publication Date
2025-06-06
Estimated Expiration
2034-04-19

AI Technical Summary

Technical Problem

The heating structure and temperature sensing probe at the bottom of the air fryer body are affected by the steam generated by the evaporation of water at the bottom of the inner cavity, resulting in inaccurate temperature measurement, affecting the heating effect of food.

Method used

A water leakage hole is set near the temperature sensor probe to discharge water accumulation at the bottom to eliminate the influence of steam on the temperature sensor probe. The distance between the leakage hole and the temperature sensor probe is between 10-25mm to avoid interference from outside cold air and steam.

Benefits of technology

By setting the leak hole, ensure the temperature measurement accuracy of the temperature sensor probe, improve the cooking effect of the heating component on the bottom of the food, and reduce heat loss and noise.

✦ Generated by Eureka AI based on patent content.

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Abstract

The air fryer comprises a machine shell, a bottom shell arranged at the bottom of the machine shell and a fryer body, an inner cavity is defined by the machine shell and the bottom shell, an opening is formed in one side of the inner cavity so that the fryer body can enter and exit from the inner cavity through the opening, a heating assembly is arranged at the bottom of the inner cavity, and the heating assembly is arranged in the inner cavity. The heating assembly comprises a reflecting plate, a heating pipe and a temperature sensing probe used for controlling the temperature of the heating pipe, the temperature sensing probe is arranged on the side wall of the reflecting plate in a protruding mode, a water leakage hole is formed in the bottom wall of the reflecting plate, the distance between the water leakage hole and the temperature sensing probe is d, and the value range of d is 10-25 mm. The water leakage hole is formed near the temperature sensing probe and used for discharging accumulated water at the bottom, so that the influence of steam generated by water vapor evaporation on temperature measurement of the temperature sensing probe is eliminated.
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Description

Technical Field

[0001] The utility model relates to the field of kitchen appliances, in particular to an air fryer with accurate temperature measurement. Background Art

[0002] An air fryer is a kitchen appliance that uses a heating component to form a hot air circulation to bake food. By setting the corresponding heating temperature and time, the food is baked after the machine finishes working.

[0003] In order to improve the baking effect of the bottom of the food, a heating element can also be set at the bottom of the cooking cavity of the air fryer. By heating the bottom of the food through the heating element, the uniform heating effect in the cooking cavity can be improved, which is conducive to shortening the heating time and improving the taste of the food. Furthermore, in order to control the operation of the heating element, a thermostat is usually configured for temperature control. However, the applicant found that in the scheme of setting the lower heating component, water is easily accumulated at the bottom of the inner cavity (it may be that the steam in the cooking cavity is not discharged in time when the air fryer is used, and condensation drips along the side wall, or it may be that the water at the bottom is not cleaned up in time after the machine was used last time). When the machine is working, these accumulated water is heated into steam, and the steam moves to the surface of the thermostat, which is easy to affect the accuracy of the temperature measurement of the thermostat, causing the heating tube to trip prematurely or too late, which will affect the heating effect of the food.

[0004] For example, the existing Chinese patent CN219742494U discloses an air fryer, in which a lower heating tube and a temperature sensing probe are provided at the bottom of the body. This solution has the technical problems described above. When the water vapor at the bottom of the body evaporates, the steam will affect the accuracy of the temperature measurement of the temperature sensing probe, making it difficult to effectively exert the heating effect of the lower heating tube on the food. Utility Model Content

[0005] In order to solve the technical problem in the prior art that the temperature sensing probe of the heating structure at the bottom of the air fryer body is affected by the steam generated by the evaporation of water vapor at the bottom of the inner cavity, resulting in inaccurate temperature measurement, the utility model provides an air fryer with accurate temperature measurement, by arranging a water leakage hole near the temperature sensing probe for draining the accumulated water at the bottom, so as to eliminate the influence of the steam generated by the evaporation of water vapor on the temperature measurement of the temperature sensing probe.

[0006] The utility model discloses an air fryer with accurate temperature measurement, comprising a casing, a bottom casing arranged at the bottom of the casing and a fryer, wherein the casing and the bottom casing are enclosed to form an inner cavity, an opening is arranged on one side of the inner cavity so that the fryer can enter and exit the inner cavity through the opening, a heating component is arranged at the bottom of the inner cavity, the heating component comprises a reflecting plate, a heating tube and a temperature sensing probe for controlling the temperature of the heating tube, the temperature sensing probe is protrudingly arranged on the side wall of the reflecting plate, a water leakage hole is arranged on the bottom wall of the reflecting plate, a distance d between the water leakage hole and the temperature sensing probe is taken as d, and the value range of d is 10-25mm.

[0007] The air fryer with accurate temperature measurement of the utility model also has the following additional technical features:

[0008] The bottom shell is provided with a drainage hole connected to the outside, and the drainage hole is connected to the water leakage hole and is staggered.

[0009] The reflecting plate is provided with a first water guiding flange extending toward the bottom shell at the edge of the water leakage hole.

[0010] A heat preservation cover is provided below the reflection plate, and the heat preservation cover is provided with a through hole which is connected with and directly opposite to the water leakage hole, and the diameter of the through hole is not less than the diameter of the water leakage hole.

[0011] The heat-insulating cover is provided with a second water-conducting flange extending toward the bottom shell at the through hole.

[0012] A heat-insulating gap is provided between the bottom of the reflecting plate and the bottom of the heat-insulating cover.

[0013] The diameter of the water leakage hole ranges from 3 to 8 mm.

[0014] The heating tube comprises a first heating part and a second heating part which are symmetrically arranged, and the temperature sensing probe is arranged between the first heating part and the second heating part.

[0015] The temperature sensing probe is arranged at the same height as the first heating part and the second heating part.

[0016] Along the direction from the temperature sensing probe to the water leakage hole, the bottom wall of the reflecting plate is inclined downward.

[0017] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0018] 1. The air fryer with accurate temperature measurement of the present invention improves the heating effect of the bottom of food by the heating component at the bottom of the inner cavity. In order to solve the technical problem that water accumulates at the bottom of the inner cavity and the steam generated by the evaporation of the accumulated water affects the accurate temperature sensing of the temperature sensing probe when the machine is working, a water leakage hole is set on the bottom wall of the reflecting plate, which can be used to drain the accumulated water in time. Moreover, the water leakage hole is set in a suitable range close to the temperature sensing probe, which is conducive to the timely discharge of the accumulated water near the temperature sensing probe, thereby avoiding the interference of the steam generated by the evaporation of water vapor, ensuring the accurate temperature sensing of the temperature sensing probe, and improving the cooking effect of the heating component on the bottom of the food.

[0019] By limiting the distance d, it can be avoided that when the distance d is too small, the cold wind from the outside passes through the leaking hole and affects the temperature measurement of the temperature sensing probe. At the same time, it can be avoided that when the distance d is too large, steam is easily generated near the temperature sensing probe and affects the temperature measurement. The accuracy and reliability of the temperature measurement of the temperature sensing probe can be improved as a whole.

[0020] 2. In order to drain the accumulated water on the reflective plate to the external environment and avoid direct connection between the inner cavity and the outside world, so that the hot air in the inner cavity is easily lost through the water leakage hole and the drain hole, and to prevent the cold air from the outside from easily entering the inner cavity through the water leakage hole and the drain hole and affecting the heating effect of the inner cavity, as a preferred embodiment, the bottom shell is provided with a drain hole connected to the outside world, and the drain hole is connected to the water leakage hole and staggered. Based on the connection and staggered setting of the drain hole and the water leakage hole, the heat loss of the inner cavity can be reduced while ensuring smooth drainage, and it is also conducive to reducing the transmission of noise.

[0021] 3. In order to improve the drainage efficiency and prevent some water from remaining in the bottom shell for a long time, which may cause odor and be difficult to clean, as a preferred embodiment, the reflector is provided with a first water guide flange extending toward the bottom shell at the edge of the water leakage hole. The first water guide flange can play a role in drainage and prevent water from splashing when leaking and being difficult to flow around the drainage hole, causing some water to remain in the bottom shell, which is conducive to fully draining the water.

[0022] 4. In order to reduce the heat loss of the reflector, improve the reflection efficiency of the reflector, and reduce the influence of the ambient temperature on the temperature sensing of the temperature sensor, as a preferred embodiment, a heat preservation cover is provided below the reflector, and the heat preservation cover is provided with a through hole connected to and facing the water leakage hole, and the diameter of the through hole is not less than the diameter of the water leakage hole. The heat preservation cover is provided to enable the heat energy of the reflector to fully act on the food, which can improve the heating efficiency, and the larger through hole can avoid water leakage at the connection position between the water leakage hole and the through hole, which can ensure that the accumulated water is completely discharged.

[0023] Furthermore, in order to improve the drainage efficiency and avoid water splashing around the drainage hole when water leaks down, so that some water remains in the bottom shell, in one embodiment, the thermal insulation cover is provided with a second water guide flange extending toward the bottom shell at the through hole. The second water guide flange can play a role in drainage, so that water can gather and flow to the vicinity of the drainage hole, thereby ensuring that the accumulated water is completely discharged.

[0024] Furthermore, in order to reduce the heat loss of the reflector, reduce the heat loss of the heating pipe, and improve the accuracy of the temperature sensing of the temperature sensing probe, in one embodiment, a heat insulation gap is provided between the bottom of the reflector and the bottom of the heat preservation cover. The heat insulation gap is conducive to enhancing the heat insulation effect of the heat preservation cover.

[0025] 5. When the leakage hole is too small, water blockage may occur and affect the drainage efficiency. When the leakage hole is too large, it may be affected by the external ambient temperature and affect the temperature sensing accuracy of the temperature sensor. As a preferred embodiment, the diameter of the leakage hole ranges from 3 to 8 mm.

[0026] 6. In order to further improve the accuracy of the temperature sensing probe in sensing the temperature of the heating tube, as a preferred embodiment, the heating tube includes a first heating part and a second heating part that are symmetrically arranged, and the temperature sensing probe is arranged between the first heating part and the second heating part. By optimizing the positional relationship between the temperature sensing probe and the heating tube, the heated area of ​​the temperature sensing probe surface can be increased, and the heating is more uniform, which is conducive to improving its temperature sensing accuracy.

[0027] Furthermore, in one embodiment, the temperature sensing probe is arranged at the same height as the first heating part and the second heating part, which is helpful to shorten the temperature sensing path and make the temperature sensing more timely and accurate.

[0028] 7. In order to ensure that the accumulated water near the temperature probe can flow to the water leakage hole quickly for discharge, as a preferred embodiment, the bottom wall of the reflective plate is tilted downward along the direction from the temperature probe to the water leakage hole. That is, by setting the temperature probe at a high position and the water leakage hole at a low position, when there is accumulated water near the temperature probe, the accumulated water can flow to the water leakage hole quickly along the terrain difference and then be discharged. In this way, when the machine is working, the steam from the evaporation of water vapor can prevent the temperature probe from being disturbed, ensuring the reliability of the temperature probe in accurately measuring the temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0030] Figure 1 This is a schematic diagram of the structure of an air fryer shell according to one embodiment of the present application.

[0031] Figure 2 This is a schematic structural diagram of a bottom case and a heating component in one embodiment of the present application.

[0032] Figure 3 for Figure 2 Schematic diagram of the top view of the heat generating component structure.

[0033] Figure 4 It is a schematic cross-sectional view of the drainage structure on the bottom shell according to one embodiment of the present application.

[0034] Figure 5 for Figure 4 A magnified schematic diagram of the structure in the middle.

[0035] Reference numerals:

[0036] 10. Casing; 11. Bottom shell; 12. Inner cavity; 13. Heating component; 131. Reflecting plate; 132. Heating tube; 133. Temperature sensor; 14. Leakage hole; 111. Drain hole; 112. Water guide cavity; 141. First water guide flange; 15. Insulation cover; 151. Through hole; 152. Second water guide flange; 153. Insulation gap; 1321. First heating part; 1322. Second heating part; 1323. Notch. DETAILED DESCRIPTION

[0037] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0038] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0039] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0040] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships 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 referred device or element 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.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0042] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through a transition structure, but are only connected to form a whole through a connecting structure. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0043] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0044] like Figures 1 to 5 As shown, the present application provides an air fryer with accurate temperature measurement, comprising a casing 10, a bottom casing 11 arranged at the bottom of the casing 10, and a fryer, the casing 10 and the bottom casing 11 enclose an inner cavity 12, one side of the inner cavity 12 is provided with an opening to allow the fryer to enter and exit the inner cavity 12 through the opening, a heating component 13 is provided at the bottom of the inner cavity 12, the heating component 13 comprises a reflecting plate 131, a heating tube 132 and a temperature sensing probe 133 for controlling the temperature of the heating tube 132, the temperature sensing probe 133 is protrudingly arranged on the side wall of the reflecting plate 131, the bottom wall of the reflecting plate 131 is provided with a water leakage hole 14, the distance between the water leakage hole 14 and the temperature sensing probe 133 is d, and the value range of d is 10-25mm.

[0045] The air fryer with accurate temperature measurement of the present invention improves the heating effect of the bottom of food by the heating component 13 at the bottom of the inner cavity 12. In order to solve the technical problem that water accumulates at the bottom of the inner cavity 12 and the steam generated by the evaporation of the accumulated water affects the accurate temperature sensing of the temperature sensing probe 133 when the machine is working, a water leakage hole 14 is set on the bottom wall of the reflecting plate 131, which can be used to drain the accumulated water in time. Moreover, the water leakage hole 14 is set in a suitable range close to the temperature sensing probe 133, which is conducive to the timely discharge of the accumulated water near the temperature sensing probe 133, thereby avoiding the interference of the steam generated by the evaporation of water vapor, ensuring that the temperature sensing probe 133 accurately senses the temperature, and improving the cooking effect of the heating component 13 on the bottom of food.

[0046] By limiting the distance d, it can be avoided that when the distance d is too small, the cold wind from the outside passes through the leakage hole 14 and affects the temperature measurement of the temperature sensing probe 133. At the same time, it can be avoided that when the distance d is too large, steam is easily generated near the temperature sensing probe 133 and affects the temperature measurement, which can improve the accuracy and reliability of the temperature measurement of the temperature sensing probe 133 as a whole.

[0047] like Figure 1 As shown, the air fryer includes a casing 10 and a bottom casing 11 arranged at the bottom of the casing 10, the casing 10 is covered on the top of the bottom casing 11, the casing 10 and the bottom casing 11 are enclosed to form an inner cavity 12, and an opening is provided at the lower end of one side of the casing 10 for the frying pot or frying basket assembly to horizontally enter and exit the inner cavity 12, wherein a hot air assembly is provided above the inner cavity 12, the hot air assembly can blow air downward to heat the food from the top, and the heating assembly 13 below can blow air upward to heat the food from the bottom, which is beneficial to heating the upper and lower sides of the food, can form uniform heating, improve heating efficiency, and achieve the effect of not turning the food over. During the use of the machine, if there is steam in the cooking cavity in the inner cavity 12 that is not discharged in time, the steam will flow along the side wall of the cooking cavity to form condensed water, which will drip onto the reflective plate 131 to form accumulated water; or, if the accumulated water at the bottom of the machine is not cleaned in time after the last use, it will also cause water to accumulate on the reflective plate 131. When the heating tube 132 is working, the accumulated water will be heated to produce steam. If the steam surrounds the temperature sensing probe 133, it will inevitably affect the temperature sensing of the temperature sensing probe 133. In order to solve this problem, the water leakage hole 14 is used to drain the accumulated water, so that the steam after the accumulated water is heated and evaporated can be prevented from interfering with the temperature measurement of the temperature sensing probe 133.

[0048] like Figures 1 to 3 As shown, since the temperature sensing probe 133 is arranged on the side wall of one side of the reflective plate 131, in order to reasonably arrange the water leakage hole 14, the water leakage hole 14 is located inside the temperature sensing probe 133 and a distance d is maintained between the two, and the distance d refers to the distance between the center of the water leakage hole 14 and the end of the temperature sensing probe 133. The water leakage hole 14 can be arranged in a certain offset with the temperature sensing probe 133, or can be arranged directly opposite to it, according to actual needs.

[0049] When draining, the accumulated water flows downward from the water leakage hole 14 to the bottom shell 11, and then is drained to the outside through the drainage structure on the bottom shell 11. In order to drain the accumulated water on the reflector 131 to the external environment while preventing the inner cavity 12 from being directly connected to the outside, causing the hot air in the inner cavity 12 to easily flow out through the water leakage hole 14 and the drainage hole 111, and to prevent the cold air from the outside from easily entering the inner cavity 12 through the drainage hole 111 and the water leakage hole 14 and affecting the heating effect of the inner cavity 12, as a preferred embodiment, the bottom shell 11 is provided with a drainage hole 111 connected to the outside, and the drainage hole 111 is connected to the water leakage hole 14 and is staggered. Figure 4 As shown, based on the fact that the drainage hole 111 and the leakage hole 14 are connected and staggered, the heat loss of the inner cavity 12 can be reduced while ensuring smooth drainage, and it is also beneficial to reduce the external transmission of noise.

[0050] In order to improve the drainage efficiency and prevent some water from remaining in the bottom shell 11 for a long time, which may cause odor and be difficult to clean, as a preferred embodiment, the reflector 131 is provided with a first water guide flange 141 extending toward the bottom shell 11 at the edge of the water leakage hole 14. Figure 5 As shown, the first water guide flange 141 can play a role in drainage, and at the same time can prevent water from splashing when leaking and being difficult to flow to the drainage hole 111, causing some water to remain in the bottom shell 11, which is conducive to fully draining the accumulated water. Figure 4 As shown, a water guiding cavity 112 is provided on the bottom shell 11, and the projection of the water leakage hole 14 falls within the range of the water guiding cavity 112. The drainage hole 111 is arranged on the side of the water guiding cavity 112 away from the water leakage hole 14. The water leakage hole 14 and the water guiding cavity 112 have a certain height difference. Preferably, the first water guiding flange 141 can extend into the water guiding cavity 112 so as to guide the accumulated water to quickly and completely flow into the water guiding cavity 112, and finally be discharged from the drainage hole 111.

[0051] In order to reduce the heat loss of the reflector 131, improve the reflection efficiency of the reflector 131, and reduce the influence of the ambient temperature on the temperature sensing probe 133, as a preferred embodiment, a heat preservation cover 15 is provided below the reflector 131, and the heat preservation cover 15 is provided with a through hole 151 connected to and facing the water leakage hole 14, and the diameter of the through hole 151 is not less than the diameter of the water leakage hole 14. Figure 4 As shown, by providing the heat-insulating cover 15, the heat energy of the reflector 131 can be fully applied to the food, thereby improving the heating efficiency. By providing a larger through hole 151, water leakage at the connection position between the water leakage hole 14 and the through hole 151 can be avoided, thereby ensuring that the accumulated water is completely discharged. The through hole 151 and the water leakage hole 14 can be connected by docking or plugging. For example, Figure 5As shown, when the water leakage hole 14 is provided with a first water guiding flange 141 , the first water guiding flange 141 can be inserted into the through hole 151 , so as to prevent part of the water from leaking into the heat preservation cover 15 .

[0052] Furthermore, in order to improve the drainage efficiency and prevent water from splashing around the drainage hole 111 and causing some water to remain in the bottom shell 11, in one embodiment, the thermal insulation cover 15 is provided with a second water guide flange 152 extending toward the bottom shell 11 at the through hole 151. Figure 5 As shown, the second water guide flange 152 can play a role in drainage, so that water can gather and flow to the vicinity of the drainage hole 111, thereby ensuring that the accumulated water is completely discharged. The bottom shell 11 is provided with a water guide cavity 112, for example, and the projection of the through hole 151 falls within the range of the water guide cavity 112. The second water guide flange 152 can be arranged above the water guide cavity 112 or the second water guide flange 152 can extend into the water guide cavity 112.

[0053] Furthermore, in order to reduce the heat loss of the reflector 131, reduce the heat loss of the heating tube 132, and improve the accuracy of the temperature sensing of the temperature sensing probe 133, in one embodiment, a heat insulation gap 153 is provided between the bottom of the reflector 131 and the bottom of the heat preservation cover 15. Figure 4 As shown, the heat insulating gap 153 is conducive to enhancing the heat insulating effect of the heat preservation cover 15. Further, a heat insulating gap is also provided between the heat preservation cover 15 and the bottom shell 11, which is conducive to reducing the heat loss of the reflective plate 131 to improve the heating efficiency of the bottom of the food.

[0054] Regarding the leakage hole 14, a suitable opening size should be set for each leakage hole 14. When the leakage hole 14 is too small, water blockage may occur and affect the drainage efficiency, while when the leakage hole 14 is too large, it may be affected by the external environment temperature and affect the accuracy of the temperature sensing probe 133. As a preferred embodiment, the diameter of the leakage hole 14 is in the range of 3-8 mm.

[0055] In order to further improve the accuracy of the temperature sensing probe 133 in sensing the temperature of the heating tube 132, as a preferred embodiment, the heating tube 132 includes a first heating part 1321 and a second heating part 1322 that are symmetrically arranged, and the temperature sensing probe 133 is arranged between the first heating part 1321 and the second heating part 1322. Figure 2As shown, by optimizing the positional relationship between the temperature sensing probe 133 and the heating tube 132, the heated area of ​​the surface of the temperature sensing probe 133 can be increased, and the heating is more uniform, which is beneficial to improving its temperature sensing accuracy. The heating tube 132 is, for example, in a concave shape. Since a notch 1323 is formed between the first heating part 1321 and the second heating part 1322, the temperature sensing probe 133 is arranged to face the notch 1323 so that the first heating part 1321 and the second heating part 1322 on both sides can transfer heat to the temperature sensing probe 133 in a timely manner. Compared with the circular heating tube 132, the heated area of ​​the temperature sensing probe 133 is smaller, which is not conducive to uniform temperature sensing. Of course, the shape of the heating tube 132 is not limited to Figure 2 As shown in the example, any common form of the heating tube 132 can be applied to the present application.

[0056] Furthermore, in one embodiment, the temperature sensing probe 133 is arranged at the same height as the first heating part 1321 and the second heating part 1322. This is beneficial to shorten the temperature sensing path and make the temperature sensing more timely and accurate.

[0057] In order to ensure that the accumulated water near the temperature probe 133 can flow to the water leakage hole 14 quickly for discharge, as a preferred embodiment, the bottom wall of the reflecting plate 131 is tilted downward along the direction from the temperature probe 133 to the water leakage hole 14. That is, by setting the temperature probe 133 at a high position and the water leakage hole 14 at a low position, when there is accumulated water near the temperature probe 133, the accumulated water can flow to the water leakage hole 14 quickly along the terrain difference and then be discharged, so that the machine can be free from the interference of the steam of evaporating water vapor on the temperature probe 133 when working, ensuring the reliability of the accurate temperature measurement of the temperature probe 133. Specifically, the bottom wall of the reflecting plate 131 on the side where the water leakage hole 14 is located is tilted from the outside to the inside to form a certain tilt angle, which is conducive to guiding water to flow quickly to the water leakage hole 14. The inclined wall can be set only on the side where the water leakage hole 14 is located, or it can also be set along the circumference of the reflecting plate 131. This application does not make too many restrictions.

[0058] The technical solution protected by the present utility model is not limited to the above-mentioned embodiments. It should be pointed out that the combination of the technical solution of any embodiment with the technical solution of one or more other embodiments is within the protection scope of the present utility model. Although the present utility model has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to it based on the present utility model. Therefore, these modifications or improvements made without departing from the spirit of the present utility model are within the scope of protection claimed by the present utility model.

Claims

1. An air fryer with accurate temperature measurement, comprising a casing, a bottom casing arranged at the bottom of the casing, and a fryer, wherein the casing and the bottom casing enclose an inner cavity, and an opening is arranged on one side of the inner cavity so that the fryer can enter and exit the inner cavity through the opening, characterized in that: A heating component is provided at the bottom of the inner cavity, and the heating component includes a reflecting plate, a heating tube and a temperature sensing probe for controlling the temperature of the heating tube. The temperature sensing probe is protruded on the side wall of the reflecting plate, and a water leakage hole is provided on the bottom wall of the reflecting plate. The distance between the water leakage hole and the temperature sensing probe is d, and the value range of d is 10-25mm.

2. The air fryer with accurate temperature measurement according to claim 1, characterized in that: The bottom shell is provided with a drainage hole connected to the outside, and the drainage hole is connected to the water leakage hole and is staggered.

3. The air fryer with accurate temperature measurement according to claim 1, characterized in that: The reflecting plate is provided with a first water guiding flange extending toward the bottom shell at the edge of the water leakage hole.

4. The air fryer with accurate temperature measurement according to claim 1, characterized in that: A heat preservation cover is provided below the reflection plate, and the heat preservation cover is provided with a through hole which is connected with and directly opposite to the water leakage hole, and the diameter of the through hole is not less than the diameter of the water leakage hole.

5. The air fryer with accurate temperature measurement according to claim 4, characterized in that: The heat-insulating cover is provided with a second water-conducting flange extending toward the bottom shell at the through hole.

6. The air fryer with accurate temperature measurement according to claim 4, characterized in that: A heat-insulating gap is provided between the bottom of the reflecting plate and the bottom of the heat-insulating cover.

7. The air fryer with accurate temperature measurement according to claim 1, characterized in that: The diameter of the water leakage hole ranges from 3 to 8 mm.

8. The air fryer with accurate temperature measurement according to claim 1, characterized in that: The heating tube comprises a first heating part and a second heating part which are symmetrically arranged, and the temperature sensing probe is arranged between the first heating part and the second heating part.

9. The air fryer with accurate temperature measurement according to claim 8, characterized in that: The temperature sensing probe is arranged at the same height as the first heating part and the second heating part.

10. The air fryer with accurate temperature measurement according to claim 1, characterized in that: Along the direction from the temperature sensing probe to the water leakage hole, the bottom wall of the reflecting plate is inclined downward.

Citation Information

Patent Citations

  • Air fryer bottom heating structure

    CN219742494U