Cooking utensil with self-cleaning heating tube

By setting up water channels and steam nozzles inside the heating element of the air fryer, high-temperature steam and blower components are used to clean the oil stains on the heating element, solving the problem of inconvenient cleaning of the heating element and improving cleaning efficiency and user experience.

CN223715575UActive Publication Date: 2025-12-26NINGBO LICHU INTELLIGENT TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202421484813.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-26
Publication Date
2025-12-26
Estimated Expiration
2034-06-26

AI Technical Summary

Technical Problem

The heating element of existing air fryers is prone to accumulating oil stains after prolonged use, making cleaning inconvenient and reducing the user experience.

Method used

A water passage is set inside the heating element, and the water flow direction is controlled by a reversing solenoid valve. High-temperature steam is sprayed through a steam nozzle to clean the heating element, and the cleaning efficiency is improved by combining it with a blower assembly.

Benefits of technology

It achieves self-cleaning of the heating element, improves cleaning convenience and user experience, simplifies the water circuit structure, and reduces manufacturing costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223715575U_ABST
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Abstract

The utility model discloses a cooking utensil with a self-cleaning heating tube, which comprises a cooking main body, a cooking cavity is formed in the cooking main body, and the heating tube for heating is arranged in the cooking cavity; a water passing channel used for conveying hot water is formed in the heating pipe, a steam nozzle used for cleaning the heating pipe is arranged in the cooking cavity, and the output end of the water passing channel is connected with the steam nozzle.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of cooking utensils, and particularly relates to a cooking utensil with self-cleaning heating pipes. BACKGROUND

[0002] Air fryers have multiple functionalities in roasting food. They can not only roast pizzas, egg tarts, chicken wings, cakes, and sweet potatoes, but also have precise temperature control, making the food crispy on the outside and tender on the inside. Unlike traditional electric ovens, air fryers need to be adjusted in terms of temperature and material ratio. However, some advanced air fryers have built-in menus, and users only need to choose the corresponding mode without frequent temperature adjustments. This convenience makes air fryers a multifunctional assistant in home kitchens.

[0003] The air fryer in the prior art generally heats food through a heating pipe, but over time, the oil stains generated during the cooking process will adhere to the heating pipe, requiring regular cleaning of the heating pipe. However, since the heating pipe is placed inside the air fryer body, cleaning is not convenient, reducing the user experience. SUMMARY

[0004] To solve the technical problems in the background art, the utility model provides a cooking utensil with self-cleaning heating pipes.

[0005] The technical solution adopted by the utility model to solve the technical problems is as follows:

[0006] A cooking utensil with self-cleaning heating pipes, comprising a cooking body, a cooking cavity is formed in the cooking body, and a heating pipe for heating is arranged in the cooking cavity;

[0007] A water passage for conveying hot water is formed in the heating pipe, and a steam nozzle for cleaning the heating pipe is arranged in the cooking cavity, and the output end of the water passage is connected to the steam nozzle.

[0008] Preferably, a reversing electromagnetic valve is arranged in the cooking body, and the output end of the water passage is connected to the steam nozzle through the reversing electromagnetic valve. Through the above improvement, the reversing electromagnetic valve can control the flow direction of water in the heating pipe, so that water can not only be input into the steam nozzle to clean the heating pipe, but also be input into other structures.

[0009] Preferably, the heating pipe comprises an outer pipe and a heating inner pipe arranged in the outer pipe, and the water passage is formed between the outer pipe and the heating inner pipe. Through the above improvement, water enters between the outer pipe and the heating inner pipe, is heated by the heating inner pipe, and is then input into the steam nozzle, thereby generating high-temperature steam to act on the oil stains on the heating pipe, improving the cleaning effect.

[0010] Preferably, one end of the outer tube is formed with a water inlet pipe for water placement, and the other end constitutes a water outlet pipe for water discharge, and the water outlet is connected with the steam nozzle. Through the above improvement, water can be placed into the heating pipe through the water inlet pipe, and the heated water enters the reversing electromagnetic valve from the water outlet pipe, and then is injected into the steam nozzle by the reversing electromagnetic valve, so that the whole waterway is connected.

[0011] Preferably, a blowing assembly is arranged above the heating pipe, a blowing channel is formed between the blowing assembly and the heating pipe, and the steam nozzle is located above the heating pipe and away from the blowing channel. Through the above improvement, the blowing efficiency of the heating pipe is improved, and the blowing channel is prevented from being blocked by the steam nozzle.

[0012] Preferably, the cooking main body is further provided with a water tank, the water tank is connected with the water inlet end of the heating pipe, and the water outlet end of the heating pipe is connected with the reversing electromagnetic valve. Through the above improvement, the water in the water tank is input into the heating pipe, and then is input into the steam nozzle by the reversing electromagnetic valve after being heated.

[0013] Preferably, a curved spray part is formed on the steam nozzle, and the spray part is arranged towards the center of the heating pipe. Through the above improvement, the cleaning effect is improved.

[0014] Preferably, a guide arc surface is formed on the side of the outer tube. Through the above improvement, the high-temperature steam can fall along the guide arc surface after contacting the oil stains, so that the cleaning effect of the heating pipe is realized.

[0015] Preferably, the steam nozzle is made of heat-resistant material. Through the above improvement, the service life of the steam nozzle is improved.

[0016] Preferably, the heating pipe is arranged in a winding manner, and water gaps are formed between the heating pipes. Through the above improvement, the high-temperature steam sprayed by the steam nozzle can pass through the water gaps, so that the cleaning effect is improved.

[0017] Compared with the prior art, the utility model has the advantages and beneficial effects that:

[0018] By arranging the water passage in the heating pipe, the heated water enters the steam nozzle through the water passage, the high-temperature steam is sprayed on the heating pipe by the steam nozzle, and the oil stains on the heating pipe are dissolved in the high-temperature steam, so that the cleaning of the heating pipe is realized. Not only the convenience of cleaning the heating pipe is improved, but also the user's use experience is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure schematic view of the utility model;

[0020] Figure 2The utility model discloses a cooking main body internal structure schematic view.

[0021] Figure 3 The utility model discloses a whole structure's sectional view.

[0022] Figure 4 The utility model discloses a cooking cavity internal structure schematic view.

[0023] In the figure: 1, cooking main body;2, cooking cavity;3, heating tube;4, water passage;5, steam nozzle;6, reversing electromagnetic valve;101, outer tube;102, heating inner tube;103, water inlet pipe;104, drain pipe;105, blow assembly;106, air supply channel;107, water tank;108, injection part;109, guide camber;110, water passage gap; DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be apparently and completely described below with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative work belong to the range of protection of the utility model.

[0025] It should be understood that although the terms upper, middle, lower, top end, one end and the like appear in the present text to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish the elements from each other for the sake of understanding, and are not used to define any directional or sequential limitation.

[0026] As Figures 1-4 shown, a kind of heating tube self-cleaning cooking utensil, including cooking main body 1, cooking main body 1 is constituted with cooking cavity 2 in, and cooking cavity 2 is provided with heating tube 3 for heating in.

[0027] Specifically, heating tube 3 is formed with water passage 4 for conveying hot water in, and cooking cavity 2 is provided with steam nozzle 5 for cleaning heating tube, and the output end of water passage 4 is connected steam nozzle 5.

[0028] In the daily use process, heating tube 3 needs to be cleaned, water can be injected into the water passage 4 in heating tube 3, and the heated water enters steam nozzle 5 through water passage 4, high-temperature steam is sprayed on heating tube 3 using steam nozzle 5, so that the oil stain on heating tube 3 is dissolved in high-temperature steam, thereby realizing the cleaning of heating tube 3, which not only improves the convenience of cleaning heating tube 3, but also improves the user's experience.

[0029] As Figures 1-4As shown, a further explanation of the water circuit connection of the steam nozzle 5 in this embodiment is provided. The cooking body 1 is equipped with a reversing solenoid valve 6, and the output end of the water passage 4 is connected to the steam nozzle 5 through the reversing solenoid valve 6. The reversing solenoid valve 6 can be used to control the flow direction of water in the heating tube 3, so that water can not only be input into the steam nozzle 5 to clean the heating tube 3, but also input into other structures.

[0030] Furthermore, the cooking body 1 is also equipped with a water tank 107, and the water tank 107 is connected to the water inlet of the heating element 3, and the water outlet of the heating element 3 is connected to the reversing solenoid valve 6.

[0031] The water tank 107 injects water into the heating element 3 through a water pump, and the reversing solenoid valve 6 can control the hot water to enter the steam nozzle 5 for cleaning, or inject the hot water into other areas inside the cooking body 1 for hot water use. The cooking body 1 is also equipped with a coffee brewing area, where hot water can be input to make the cooking appliance more versatile.

[0032] Specifically, the water tank 107 can be connected to a coffee machine or a water dispenser, thus sharing a single water circuit. The water circuit structure inside the appliance is simpler, which not only reduces the manufacturing cost of the entire structure but also improves the convenience for users.

[0033] As a further explanation of the implementation of the heating tube 3 in this embodiment, the heating tube 3 includes an outer tube 101 and a heating inner tube 102 placed inside the outer tube 101, and a water passage 4 is formed between the outer tube 101 and the heating inner tube 102.

[0034] During the entire water circuit process, water enters between the outer pipe 101 and the heating inner pipe 102. After being heated by the heating inner pipe 102, it is input into the steam nozzle 5, thereby generating high-temperature steam to act on the oil stains on the heating pipe 3, thus improving the cleaning effect.

[0035] Specifically, one end of the outer pipe 101 forms an inlet pipe 103 for water supply, and the other end forms a drain pipe 104 for water discharge. The drain outlet is connected to the steam nozzle 5. Water can be placed into the heating tube 3 through the inlet pipe 103. After being heated, the water enters the reversing solenoid valve 6 through the drain pipe 104, and then is injected into the steam nozzle 5 through the reversing solenoid valve 6, thus realizing the connection of the entire water circuit.

[0036] Preferably, the outer tube 101 has a guide arc surface 109 formed on its periphery, so that the high-temperature steam can fall along the guide arc surface 109 after contacting the oil stains, thereby achieving a cleaning effect on the heating tube 3.

[0037] As preferred, the heating pipes 3 are arranged in a winding manner, and water passing gaps 110 are formed between the heating pipes 3, so that the high-temperature steam sprayed by the steam nozzles 5 can pass through the water passing gaps 110, thereby improving the cleaning effect.

[0038] As shown in Figures 1-4 Further explanation about the installation position of the steam nozzles 5 in the embodiment, a blowing assembly 105 is arranged above the heating pipes 3, a blowing channel 106 is formed between the blowing assembly 105 and the heating pipes 3, and the steam nozzles 5 are located above the heating pipes 3 and away from the blowing channel 106.

[0039] Since the steam nozzles 5 are away from the blowing channel 106, the blowing assembly 105 will not block the action on the heating pipes 3, thereby improving the blowing efficiency of the heating pipes and ensuring the heating effect.

[0040] In addition, a curved spray part 108 is formed on the steam nozzle 5, and the spray part 108 is arranged towards the center of the heating pipe 3, so that the high-temperature steam generated by the steam nozzle 5 is directly sprayed towards the center of the heating pipe 3, and the entire surface of the heating pipe 3 can be sprayed by the high-temperature steam, thereby greatly improving the cleaning effect.

[0041] Preferably, the steam nozzle 5 is made of heat-resistant material, thereby prolonging the service life of the steam nozzle 5.

[0042] The specific embodiment is only an explanation of the present application, and is not a limitation of the present application. Those skilled in the art can make modifications to the embodiment without creative contribution after reading the specification, as long as the modifications are within the scope of the claims of the present application and are protected by the patent law.

Claims

1. A cooking appliance with self-cleaning of a heat pipe, characterized in that, The cooking main body (1) is internally provided with a cooking cavity (2), and a heating tube (3) for heating is arranged in the cooking cavity (2); A water passing channel (4) for conveying hot water is formed in the heating tube (3), and a steam nozzle (5) for cleaning the heating tube is arranged in the cooking cavity (2), and the output end of the water passing channel (4) is connected with the steam nozzle (5).

2. The cooking appliance of claim 1, wherein the heating tube is formed of a material having a thermal expansion coefficient of 10 ppm or less. 5 A reversing electromagnetic valve (6) is arranged in the cooking main body (1), and the output end of the water passing channel (4) is connected with the steam nozzle (5) through the reversing electromagnetic valve (6).

3. The cooking appliance of claim 1, wherein the heating tube is formed of a material having a thermal expansion coefficient of 10 ppm or less. 3 The heating tube (3) comprises an outer tube (101) and a heating inner tube (102) arranged in the outer tube (101), and the water passing channel (4) is formed between the outer tube (101) and the heating inner tube (102).

4. The cooking appliance of claim 3, wherein the heating tube is formed of a material having a thermal expansion coefficient of 10 ppm or less. 5 One end of the outer tube (101) is formed with a water inlet pipe (103) for water arrangement, and the other end is formed with a water outlet pipe (104) for water discharge, and the water outlet pipe (104) is connected with the steam nozzle (5).

5. The cooking appliance of claim 1, wherein the heating tube is formed of a material having a thermal expansion coefficient of 10 ppm or less. A blowing assembly (105) is arranged above the heating tube (3), a blowing channel (106) is formed between the blowing assembly (105) and the heating tube (3), and the steam nozzle (5) is located above the heating tube (3) and away from the blowing channel (106).

6. The cooking appliance of claim 1, wherein the heating tube is formed of a material having a thermal expansion coefficient of 10 ppm or less. The cooking main body (1) is further provided with a water tank (107), and the water tank (107) is connected with the water inlet end of the heating tube (3), and the water outlet end of the heating tube (3) is connected with the reversing electromagnetic valve (6).

7. The cooking appliance of claim 1, wherein the heating tube is formed of a material having a thermal expansion coefficient of 10 ppm or less. The steam nozzle (5) is provided with a curved spray part (108), and the spray part (108) is arranged towards the center of the heating tube (3).

8. The cooking appliance of claim 3, wherein the heating tube is formed of a material having a thermal expansion coefficient of 10 ppm or less. The outer tube (101) is formed with a guide camber (109) on the side.

9. The cooking appliance of claim 1, wherein the heating tube is formed of a material having a thermal conductivity of 200 W / mK or more. The steam nozzle (5) is made of heat-resistant material.

10. The cooking appliance of claim 1, wherein, The heating tube (3) is arranged in a winding manner, and water passing gaps (110) are formed between the heating tubes (3).