Anti-dry-burning evaporator, control method of anti-dry-burning evaporator and steaming oven

Abstract

The invention provides an anti-dry-burning evaporator and a control method of the anti-dry-burning evaporator, and belongs to the technical field of household appliances. The anti-dry-burning evaporator comprises an evaporator main body, a communicating pipe, a switch device and an air pressure detection device; a residual water outlet is formed in the bottom of the evaporator main body; the switch device is arranged at the residual water outlet and is used for opening or closing the residual water outlet; one end of the communicating pipe is arranged inside the evaporator main body, and the other end is arranged outside the evaporator main body; the air pressure detection device is arranged at the other end of the communicating pipe. According to the evaporator, the bottom residual water discharging opening is specially designed, and a corresponding switch device is arranged, so that residual water accumulated in the evaporator main body can be timely and effectively discharged after the evaporator stops running, and various adverse effects caused by water stagnation are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to an anti-dry-burning evaporator, a control method for the anti-dry-burning evaporator, and a steam oven. Background Art

[0002] Evaporators are widely used as essential heat exchange equipment. However, during periods of downtime or maintenance, a certain amount of water often accumulates inside the evaporator. This long-term presence of water can lead to a range of problems, such as water quality deterioration, scaling, corrosion, and even microbial growth. These can severely impact the evaporator's heat exchange efficiency and service life, while also increasing safety risks during restart.

[0003] Furthermore, traditional evaporators are often designed and used without effective prevention and control measures for dry-burn conditions. This can lead to dry-burn conditions, potentially causing equipment damage, safety hazards, and energy waste. This is especially true when the water level in the evaporator is too low or completely empty. If the evaporator continues to operate, dry-burn conditions are likely to occur, shortening the evaporator's service life and potentially causing equipment failure and safety incidents. Summary of the Invention

[0004] In view of the above problems, the present invention aims to provide an anti-dry-burn evaporator capable of reducing scale deposition in the evaporator.

[0005] In a first aspect, an anti-dry burning evaporator is provided, comprising: an evaporator body, a connecting pipe, a switch device and an air pressure detection device;

[0006] The evaporator body has a water inlet and a steam outlet, and a residual water outlet is provided at the bottom;

[0007] The evaporator body is connected to the water tank;

[0008] The switch device is arranged at the residual water outlet, and is used to open or close the residual water outlet;

[0009] One end of the communication pipe is arranged inside the evaporator body and close to the bottom of the evaporator body, and the other end is arranged outside the evaporator body;

[0010] The air pressure detection device is arranged at the other end of the connecting pipe.

[0011] Furthermore, the connecting pipe includes: a connecting pipe and a connecting hose;

[0012] One end of the connecting pipe is inserted into the interior of the evaporator body and close to the bottom of the evaporator body, and the other end is arranged outside the evaporator body and connected to one end of the connecting hose;

[0013] The other end of the connecting hose is connected to the air pressure detection device.

[0014] Furthermore, one end of the connecting pipe is close to the residual water outlet.

[0015] Furthermore, one end of the connecting pipe is configured to be in the shape of an inverted trumpet that is smaller at the top and larger at the bottom.

[0016] Furthermore, the evaporator body includes a box body and a heating device;

[0017] The box body has the water inlet, the steam outlet, and the residual water outlet is provided at the bottom;

[0018] The water inlet of the box body is connected to the water tank;

[0019] The box and the heating device.

[0020] Furthermore, it also includes a temperature detection device; the temperature detection device is installed on the evaporator body.

[0021] Furthermore, it also includes a controller, which is connected to the temperature detection device and the heating device.

[0022] In a second aspect, a control method for an anti-dry-burning evaporator is provided, which is applied to the anti-dry-burning evaporator described in the above technical solution.

[0023] Acquire the working state of the evaporator and the temperature and water level in the evaporator body; the working state of the evaporator includes a first working state, a second working state, a third working state and a fourth working state;

[0024] Based on the first working state, controlling the opening or closing of the heating device, the water inlet and the residual water outlet;

[0025] Controlling the opening or closing of the water inlet and the heating device based on the second operating state and the temperature in the evaporator body; or controlling the opening or closing of the water inlet and the heating device based on the second operating state and the water level in the evaporator body;

[0026] Based on the third working state and the water level in the evaporator body, controlling the opening or closing of the water inlet and the heating device;

[0027] Based on the fourth working state, the remaining water outlet is controlled to be opened or closed.

[0028] Furthermore, the first working state is a stop state, the second working state is a work pause state, the third working state is a steam generation state, and the fourth working state is a drainage state.

[0029] Furthermore, the controlling of opening or closing of the heating device, the water inlet, and the residual water outlet based on the first working state includes:

[0030] Based on the first working state, the heating device is turned off, the water inlet is controlled, and the residual water outlet is controlled.

[0031] Furthermore, the controlling of opening or closing of the water inlet and the heating device based on the second working state and the temperature in the evaporator body includes:

[0032] Based on the second working state, closing the water inlet;

[0033] When the temperature in the evaporator body is higher than a first temperature threshold, the heating device is turned off.

[0034] Furthermore, the controlling of opening or closing of the water inlet and the heating device based on the second working state and the water level in the evaporator body includes:

[0035] Based on the second working state, closing the water inlet;

[0036] When the water level in the evaporator body is equal to a first water level threshold, the heating device is turned off.

[0037] Furthermore, the controlling of opening or closing of the water inlet and the heating device based on the second working state and the water level in the evaporator body includes:

[0038] Based on the second working state, closing the water inlet;

[0039] When the water level in the evaporator body is greater than a first water level threshold, the heating device is turned on to maintain the temperature in the evaporator body at a first preset temperature threshold.

[0040] Furthermore, the water inlet and the heating device are controlled to be opened or closed based on the third working state and the water level in the evaporator body; including:

[0041] When the water level in the evaporator body is equal to a first water level threshold, opening the water inlet;

[0042] After a first preset time, when the water level in the evaporator body is greater than a second water level threshold, closing the water inlet;

[0043] After the first preset time, when the water level in the evaporator body is greater than the first water level threshold and less than the second water level threshold, the water inlet and the heating device are closed.

[0044] Furthermore, after the first preset time, when the water level in the evaporator body is greater than the first water level threshold and less than the second water level threshold, closing the water inlet and the heating device; and then further comprising:

[0045] When the temperature in the evaporator body is lower than a second temperature threshold, turning on the heating device;

[0046] When the temperature in the evaporator body is greater than a second temperature threshold, it is determined that the generator is in a dry-burning state.

[0047] Furthermore, when the temperature in the evaporator body is greater than a second temperature threshold, determining that the hair extender is in a dry-burning state; and then further comprising:

[0048] The water inlet is opened, and after a second preset time, when the temperature in the evaporator body is greater than the second temperature threshold, it is confirmed that the hair extender is in a water shortage state.

[0049] Furthermore, the controlling of opening or closing of the residual water outlet based on the fourth working state includes:

[0050] Based on the fourth working state, the residual water outlet is opened.

[0051] In a third aspect, a steam oven is provided, comprising the anti-dry burning evaporator as described in the above technical solution or the control method of the anti-dry burning evaporator as described in the above technical solution.

[0052] The embodiments of the present invention have the following advantages or beneficial effects:

[0053] 1. The evaporator is specially designed with a residual water outlet at the bottom and is equipped with a corresponding switch device so that after the evaporator stops running, the residual water accumulated inside the evaporator body can be discharged promptly and effectively, thereby avoiding various adverse effects caused by water stagnation;

[0054] 2. Control methods, including but not limited to the first through fourth operating modes, implement refined regulation based on temperature and water level information under different conditions. For example, flexible control of the heating device's on / off state under different operating conditions ensures an appropriate amount of water is always maintained within the evaporator. Simultaneously, by adjusting the on / off status of the water inlet and residual water outlet, the risk of dry-burning can be effectively avoided while maintaining efficient and stable system operation, significantly enhancing the overall safety performance and service life of the evaporator. This design and control strategy aims to establish a comprehensive evaporator safety assurance system that fully adapts to the needs of modern intelligent and automated applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the accompanying drawings.

[0056] Figure 1 is a schematic diagram of an anti-dry-burn evaporator according to an exemplary embodiment;

[0057] Figure 2 is a flow chart showing a method for controlling a dry-burn prevention evaporator according to an exemplary embodiment;

[0058] Figure 3 FIG. 1 is a control flow chart of an anti-dry-burn evaporator according to an exemplary embodiment.

[0059] The description of the accompanying drawings is as follows:

[0060] 1. Evaporator body; 2. Connecting pipe; 3. Air pressure detection device;

[0061] 11. Box body; 12. Residual water outlet; 13: Heating device; 14. Water inlet; 15. Steam outlet; 16. Temperature detection device;

[0062] 21. Connecting pipe; 12. Connecting hose. DETAILED DESCRIPTION

[0063] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Like reference numerals in the figures represent like or similar structures, and thus their detailed description will be omitted.

[0064] The terms "a", "an", "the", and "said" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.

[0065] Figure 1 FIG. 1 is a schematic diagram of an anti-dry burning evaporator according to an exemplary embodiment. Figure 1 As shown, an anti-dry burning evaporator according to an embodiment of the present invention comprises an evaporator body 1 , a connecting pipe 2 , a switch device and an air pressure detection device 3 .

[0066] The evaporator body 1 includes a box body 11 and a heating device 13 .

[0067] The box body 11 is a sealed box body 11, which can be a cuboid or a polyhedron. The specific shape can be determined according to the design of the steam oven and the installation position and installation space of the evaporator. The box body 11 has a cavity inside, which can be used to store water and steam.

[0068] The housing 11 has a water inlet 14 and a steam outlet 15. The water inlet 14 is connected to the water tank via a pipe, while the steam outlet 15 is connected to the interior of the steam oven via a pipe. In a preferred embodiment, both the water inlet 14 and the steam outlet 15 are located at the top of the housing 11. This design prevents the water inlet 14 and the steam outlet 15 from contacting the water surface, facilitating water addition and steam discharge.

[0069] The bottom of the box body 11 is provided with a residual water outlet 12, which is used to drain all the residual water inside the box body 11 when the evaporator is in the drainage state after the operation is completed, thereby reducing the deposition of scale in the box body 11. Therefore, the residual water outlet 12 must be set at the lowest position of the bottom of the box body 11.

[0070] The box body 11 is also connected to a heating device 13. Specifically, the heating device 13 is installed on the bottom and / or side wall of the box body 11 and is located inside or outside the box body 11.

[0071] In a preferred embodiment, the heating device 13 is installed on the outer surface of the bottom of the box body 11 .

[0072] In practical applications, the heating device 13 is generally an electric heating device 13. The structure and installation method of the electric heating device 13 are prior art and will not be described in detail here.

[0073] A through-hole is provided in the housing 11 for inserting the connecting pipe 2. One end of the connecting pipe 21 passes through the through-hole, allowing one end of the connecting pipe 21 to be inserted inside the housing 11 and the other end to be positioned outside the housing 11. A sealing structure is also provided at the through-hole to prevent steam from escaping through the gap between the through-hole and the connecting pipe 2. This sealing structure is conventional and will not be described in detail here.

[0074] Since the sealing structure may also have a reduced sealing effect after long-term use, affecting the sealing performance, the connecting pipe 2 and the box body 11 may be welded to form an integrated structure.

[0075] Of course, even after welding, the connecting pipe 2 and the housing 11 may still break at the weld, affecting the sealing. Therefore, the connecting pipe 2 and the housing 11 can be integrally formed using a process such as injection molding. This eliminates the need for sealing structures or welds between the connecting pipe 2 and the housing 11, preventing steam leakage between the connecting pipe 2 and the housing 11.

[0076] An air pressure detection device 3 is connected to the other end of the connecting pipe 21. In a preferred embodiment, the air pressure detection device 3 can be an air pressure sensor.

[0077] During use, water is added to the housing 11 via the water tank and piping, and the heating device 13 heats the housing 11 and the water within it, raising the water temperature and generating water vapor. The water vapor can then enter the steam oven through the steam outlet 15 and flow through the connecting pipe 2 until it reaches the air pressure detection device 3. The water and water vapor within the housing 11 compress the air in the air cavity within the housing 11, exerting pressure on the air pressure detection device 3. This pressure detection device 3 can then determine the water level based on the detected air pressure data. This process prevents the effects of water flow fluctuations and oil contamination on water level detection, improving the accuracy of water level detection.

[0078] In a preferred embodiment, the connecting pipe 2 includes a connecting pipe 21 and a connecting hose 22. One end of the connecting pipe 21 is inserted into the evaporator body 1, and the other end is arranged outside the evaporator body 1 and connected to one end of the connecting hose 22; the other end of the connecting hose 22 is connected to the air pressure detection device 3.

[0079] One end of the connecting pipe 21 is located near the bottom of the evaporator body 1 and is designed in an inverted trumpet shape, smaller at the top and larger at the bottom. When the water level in the tank 11 drops, gravity causes the water in the connecting pipe 2 to drain smoothly and quickly, preventing water from remaining in the connecting pipe 2 and affecting the stability of air pressure measurement.

[0080] A switch device is provided at the residual water outlet 12 for opening or closing the residual water outlet 12. When the evaporator is operating, the switch device closes the residual water outlet 12, forming a cavity in the evaporator body 1 to store water and water vapor. When the evaporator is draining, the switch device opens the residual water outlet 12 to drain the water from the evaporator.

[0081] In addition, a temperature detection device 16 is included, which can be a temperature sensor installed inside and / or outside the housing 11 to detect the temperature of the housing 11 and the water therein. The temperature sensor is also electrically connected to a controller, which is connected to the heating device 13 and the switch device. The controller controls the heating device 13 and the switch device to turn on or off. The model and installation method of the temperature sensor can be determined based on the specific structure of the evaporator and the sensor. As long as the temperature sensor can be securely mounted on the housing 11 and can accurately measure the water temperature within the housing 11, it will be sufficient.

[0082] A steam oven according to an embodiment of the present invention includes an anti-dry burn evaporator as described in the above embodiment. The evaporator, also known as a steam generator, converts water into steam through an electric heating element, providing the high temperature and humid heat environment required for steaming food.

[0083] A steam oven is a modern kitchen appliance that integrates the functions of a steamer and an oven. Its structure mainly includes the following parts and their respective functions:

[0084] Box body 11: Shell: Usually made of high-quality stainless steel or thin steel plate, which ensures strength while preventing heat loss and is easy to clean.

[0085] Insulation material: The interior of the box 11 is often filled with thermal insulation materials, such as air interlayers or expanded perlite, to maintain a stable temperature inside the box 11 and reduce heat transfer to the external environment.

[0086] Inner liner: The inner liner is generally made of food-grade stainless steel, which is corrosion-resistant and easy to clean, ensuring food safety and hygiene.

[0087] The interior space is designed to accommodate food containers of different sizes and shapes, and some also have adjustable shelves to suit cooking needs at different heights.

[0088] Electric heating elements: upper and lower heating tubes: Steam ovens are usually equipped with two or more sets of upper and lower electric heating elements, which can work independently or collaboratively to generate hot air circulation and achieve baking function.

[0089] Water tank and water supply system: Water tank: used to store water for supply to the steam generator.

[0090] Water inlet pipe and steam outlet: The system connects the water tank and the steam generator, allowing water to enter smoothly and be converted into steam, and distributed to the interior of the box 11 through specific pipes or outlets.

[0091] Oven door and observation window: The oven door is usually equipped with high-temperature resistant glass, through which users can observe the cooking process without having to open the oven door and affect the internal temperature.

[0092] The doors seal well, sometimes with magnetic seals or other sealing devices, to ensure that steam and heat do not escape significantly.

[0093] Temperature control and timing device: Temperature control system: including electronic or mechanical temperature control elements, accurately monitoring and adjusting the internal temperature of the box 11 to ensure constant and accurate cooking results.

[0094] Timer: Allows the user to preset cooking time and auto shut-off function at the end.

[0095] Other additional functional components: Hot air circulation fan: helps to evenly distribute heat in the box 11 to ensure that all parts of the food are heated uniformly.

[0096] Steam circulation system: Some high-end models have a negative pressure steam circulation system, which uses a fan to evenly disperse the steam throughout the cavity to achieve a three-dimensional direct steam injection function.

[0097] Real-time monitoring and intelligent control system: The touch screen or display can display temperature and humidity data in real time. Some advanced steam ovens can also support remote control and program settings.

[0098] In summary, the steam oven integrates the main hardware facilities required for both steaming and baking cooking methods, and is equipped with corresponding temperature control, timing and safety protection mechanisms, allowing users to complete a variety of complex cooking tasks on one device.

[0099] Figure 2 is a flow chart showing a method for controlling a dry-burn prevention evaporator according to an exemplary embodiment; Figure 3 FIG. 1 is a control flow chart of an anti-dry burning evaporator according to an exemplary embodiment. Figure 2 and Figure 3 As shown, a control method for an anti-dry-burning evaporator according to an embodiment of the present invention is applied to the anti-dry-burning evaporator according to the above embodiment, comprising the following steps:

[0100] Step S1: Obtain the working state of the evaporator and the temperature and water level in the evaporator body; the working state of the evaporator includes a first working state, a second working state, a third working state and a fourth working state.

[0101] Among them, the first working state is a stop state, the second working state is a work pause state, the third working state is a steam generation state, and the fourth working state is a drainage state.

[0102] Step S2: Based on the first working state, control the opening or closing of the heating device, the water inlet and the residual water outlet.

[0103] Specifically, based on the first working state, the heating device is turned off, the water inlet is controlled, and the residual water outlet is controlled.

[0104] That is, when the evaporator is in a stopped state, the heating device is turned off, the water inlet is controlled, and the residual water outlet is controlled.

[0105] Step S3: Based on the second working state and the temperature in the evaporator body, control the opening or closing of the water inlet and the heating device; or, based on the second working state and the water level in the evaporator body, control the opening or closing of the water inlet and the heating device.

[0106] Step S31: Specifically, based on the second working state, close the water inlet.

[0107] When the temperature in the evaporator body is higher than a first temperature threshold, the heating device is turned off.

[0108] The first temperature threshold is 85° C. That is, when the evaporator is in a suspended state, the water inlet is closed; and when the temperature inside the evaporator body is higher than 85° C., the heating device is turned off.

[0109] Step S32: Specifically, based on the second working state, close the water inlet.

[0110] When the water level in the evaporator body is equal to the first water level threshold, the heating device is turned off.

[0111] The first water level threshold is 0. That is, when the evaporator is in a suspended state, the water inlet is closed; and when there is no water in the evaporator, the heating device is turned off.

[0112] Step S33: Specifically, based on the second working state, close the water inlet.

[0113] When the water level in the evaporator body is greater than a first water level threshold, the heating device is turned on to maintain the temperature in the evaporator body at a first preset temperature threshold.

[0114] The first water level threshold is 0, and the first preset temperature threshold is 85°C. That is, when there is water in the evaporator and the water level in the evaporator body is greater than 0, the heating device is turned on to maintain a constant temperature of 85°C in the evaporator body. This is intended to shorten the steam generation time during startup.

[0115] Step S4: Based on the third working state and the water level in the evaporator body, control the opening or closing of the water inlet and the heating device.

[0116] Step S41: when the water level in the evaporator body is equal to the first water level threshold, opening the water inlet;

[0117] After a first preset time, when the water level in the evaporator body is greater than a second water level threshold, closing the water inlet;

[0118] After the first preset time, when the water level in the evaporator body is greater than the first water level threshold and less than the second water level threshold, the water inlet and the heating device are closed.

[0119] The first water level threshold is 0, and the second water level threshold is 2. That is, when the water level in the evaporator body is equal to 0, the water inlet is opened;

[0120] After the first preset time, when the water level in the evaporator body is greater than 2, the water inlet is closed;

[0121] After the first preset time, when the water level in the evaporator body is greater than 0 and less than 2, the water inlet and the heating device are closed.

[0122] Step S42: After step S41, the following steps are also included:

[0123] When the temperature in the evaporator body is lower than a second temperature threshold, turning on the heating device;

[0124] When the temperature in the evaporator body is greater than a second temperature threshold, it is determined that the generator is in a dry-burn state.

[0125] The second temperature threshold is 125° C. That is, when the temperature inside the evaporator body is less than 125° C., the heating device is turned on; when the temperature inside the evaporator body is greater than 125° C., the hair extender is determined to be in a dry-burning state.

[0126] Step S43: After step S42, the following steps are also included:

[0127] The water inlet is opened, and after a second preset time, when the temperature in the evaporator body is greater than a second temperature threshold, it is confirmed that the generator is in a water shortage state.

[0128] The second temperature threshold is 125° C. That is, when the water inlet is opened and the temperature inside the evaporator body is greater than 125° C. after the second preset time, the hair dryer is confirmed to be in a water shortage state.

[0129] The water shortage at this time includes water shortage in the evaporator body and water shortage in the water tank.

[0130] Step 5: Based on the fourth working state, control the opening or closing of the residual water outlet.

[0131] Specifically, based on the fourth working state, the residual water outlet is opened to discharge the residual water accumulated inside the evaporator body, thereby avoiding various adverse effects caused by water stagnation.

[0132] Among them, steps S2 to S5 are parallel steps and there is no order of precedence.

[0133] A steam oven according to an embodiment of the present invention implements the control method for the anti-dry-burning evaporator according to the above embodiment.

[0134] In the embodiments of the present invention, the term "plurality" refers to two or more, unless otherwise specified. Terms such as "installed," "connected," and "fixed" should be interpreted broadly. For example, "connected" can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art will understand the specific meanings of these terms in the embodiments of the present invention based on specific circumstances.

[0135] In the description of the embodiments of the present invention, it should be understood that the terms "upper" and "lower" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the embodiments of the present invention.

[0136] Throughout this specification, terms such as "one embodiment" and "a preferred embodiment" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0137] The above is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations are possible in the present invention. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. Anti-dry burning evaporator, characterized in that, include: Evaporator main body (1), connecting pipe (2), switch device and air pressure detection device (3); The evaporator body (1) has a water inlet (14), a steam outlet (15), and a residual water outlet (12) is provided at the bottom thereof; The evaporator body (1) is connected to a water tank; The switch device is arranged at the residual water outlet (12) and is used to open or close the residual water outlet (12); One end of the connecting pipe (2) is arranged inside the evaporator body (1) and close to the bottom of the evaporator body (1), and the other end is arranged outside the evaporator body (1); The air pressure detection device (3) is arranged at the other end of the connecting pipe (2).

2. The anti-dry burning evaporator according to claim 1, characterized in that: The connecting pipe (2) comprises: a connecting pipe (21) and a connecting hose (22); One end of the connecting pipe (21) is inserted into the interior of the evaporator body (1) and is close to the bottom of the evaporator body (1), and the other end is arranged outside the evaporator body (1) and is connected to one end of the connecting hose (22); The other end of the connecting hose (22) is connected to the air pressure detection device (3).

3. The anti-dry burning evaporator according to claim 1, characterized in that: One end of the connecting pipe (2) is close to the residual water outlet (12).

4. The anti-dry burning evaporator according to claim 1, characterized in that: One end of the connecting pipe (21) is configured in an inverted trumpet shape with a smaller top and a larger bottom.

5. The anti-dry burning evaporator according to claim 1, characterized in that: The evaporator body (1) comprises a box (11) and a heating device (13); The box body (11) has the water inlet (14), the steam outlet (15), and the residual water outlet (12) is provided at the bottom; The water inlet (14) of the box body (11) is connected to the water tank; The box (11) is connected to the heating device (13).

6. The anti-dry burning evaporator according to claim 5, characterized in that: It also includes a temperature detection device (16); the temperature detection device (16) is installed on the evaporator body (1).

7. The anti-dry burning evaporator according to claim 6, characterized in that: It also includes a controller connected to the temperature detection device (16) and the heating device (13).

8. A control method for an anti-dry-burn evaporator, applied to the anti-dry-burn evaporator according to any one of claims 1 to 7, characterized in that: Acquire the working state of the evaporator and the temperature and water level in the evaporator body; the working state of the evaporator includes a first working state, a second working state, a third working state and a fourth working state; Based on the first working state, controlling the opening or closing of the heating device, the water inlet and the residual water outlet; Controlling the opening or closing of the water inlet and the heating device based on the second operating state and the temperature in the evaporator body; or controlling the opening or closing of the water inlet and the heating device based on the second operating state and the water level in the evaporator body; Based on the third working state and the water level in the evaporator body, controlling the opening or closing of the water inlet and the heating device; Based on the fourth working state, the remaining water outlet is controlled to be opened or closed.

9. The method according to claim 8, characterized in that The first working state is a stop state, the second working state is a work pause state, the third working state is a steam generation state, and the fourth working state is a drainage state.

10. The method according to claim 8 or 9, characterized in that The controlling the opening or closing of the heating device, the water inlet, and the residual water outlet based on the first working state includes: Based on the first working state, the heating device is turned off, the water inlet is controlled, and the residual water outlet is controlled.

11. The method according to claim 8 or 9, characterized in that The controlling of opening or closing of the water inlet and the heating device based on the second working state and the temperature in the evaporator body comprises: Based on the second working state, closing the water inlet; When the temperature in the evaporator body is higher than a first temperature threshold, the heating device is turned off.

12. The method according to claim 8 or 9, characterized in that The controlling of opening or closing of the water inlet and the heating device based on the second working state and the water level in the evaporator body comprises: Based on the second working state, closing the water inlet; When the water level in the evaporator body is equal to a first water level threshold, the heating device is turned off.

13. The method according to claim 8 or 9, characterized in that The controlling of opening or closing of the water inlet and the heating device based on the second working state and the water level in the evaporator body comprises: Based on the second working state, closing the water inlet; When the water level in the evaporator body is greater than a first water level threshold, the heating device is turned on to maintain the temperature in the evaporator body at a first preset temperature threshold.

14. The method according to claim 8 or 9, characterized in that controlling the opening or closing of the water inlet and the heating device based on the third working state and the water level in the evaporator body; include When the water level in the evaporator body is equal to a first water level threshold, opening the water inlet; After a first preset time, when the water level in the evaporator body is greater than a second water level threshold, closing the water inlet; After the first preset time, when the water level in the evaporator body is greater than the first water level threshold and less than the second water level threshold, the water inlet and the heating device are closed.

15. The method according to claim 14, characterized in that After the first preset time, when the water level in the evaporator body is greater than the first water level threshold and less than the second water level threshold, closing the water inlet and the heating device; and then further comprising: When the temperature in the evaporator body is lower than a second temperature threshold, turning on the heating device; When the temperature in the evaporator body is greater than a second temperature threshold, it is determined that the generator is in a dry-burning state.

16. The method according to claim 15, characterized in that When the temperature in the evaporator body is greater than a second temperature threshold, determining that the hair extender is in a dry-burning state; and then further comprising: The water inlet is opened, and after a second preset time, when the temperature in the evaporator body is greater than the second temperature threshold, it is confirmed that the hair extender is in a water shortage state.

17. The method according to claim 8 or 9, characterized in that Based on the fourth working state, controlling the opening or closing of the residual water discharge outlet; include; Based on the fourth working state, the residual water outlet is opened.

18. A steam oven, characterized in that: The invention comprises the anti-dry burning evaporator according to any one of claims 1 to 7 or the control method of the anti-dry burning evaporator according to any one of claims 8 to 17.

Images