Bath heater and control method
By installing a temperature sensor and detection components inside the bathroom heater's air duct, the area of the air vent is automatically adjusted according to temperature and air pressure, solving the problems of yellowing of the bathroom heater's air outlet and inaccurate temperature control, and achieving precise control of the air outlet temperature and improved safety.
Patent Information
- Application Number
- CN202511863357.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-10
- Publication Date
- 2026-02-27
AI Technical Summary
Existing bathroom heaters are prone to yellowing of the air outlet in high temperature and high humidity environments, and cannot automatically adjust the air outlet information according to the air outlet temperature. When the temperature sensor fails, it cannot control the air outlet temperature.
A temperature sensor is installed inside the air duct or at the air outlet of the bathroom heater. An air vent is provided on the temperature sensor or between it and the side wall of the air duct. The temperature sensor adjusts the area of the air vent according to temperature changes. Combined with the detection component, the air pressure and air vent area are monitored in real time, and the working status of the fan and heating component is automatically adjusted.
It achieves precise control of the air outlet temperature, avoids yellowing of the air outlet, improves the safety and heating efficiency of the bathroom heater, and enhances its intelligence and applicability.
Smart Images

Figure CN121576640A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of household appliances, in particular to a bathroom heater and a control method. BACKGROUND
[0002] The bathroom heater integrates the functions of blowing and heating, and specifically includes a shell and an air duct arranged in the shell, the air duct having an air outlet for communicating with the outside to supply air into the bathroom. The shell and the air outlet of the existing bathroom heater are usually made of ABS resin, PVC or aluminum alloy. These materials are prone to yellowing in the high-humidity and high-temperature environment of the bathroom, affecting the service life of the product.
[0003] To prevent the air outlet from yellowing due to high temperature, the existing bathroom heater usually only uses a temperature sensor to control the temperature of the air outlet below a set temperature. Once the temperature sensor fails, the temperature of the air outlet will not be controlled, which is prone to yellowing.
[0004] In addition, the existing bathroom heater cannot automatically adjust the air outlet information according to the air outlet temperature when there is no air outlet swing leaf and the working gear of the fan is unchanged. SUMMARY
[0005] The main purpose of the present application is to provide a bathroom heater and a control method, aiming to solve the technical problem that the existing bathroom heater cannot accurately control the temperature of the air outlet by only using a temperature sensor for temperature control.
[0006] To achieve the above-mentioned purpose, the present application provides a bathroom heater, which comprises a shell assembly, a fan assembly, a heating assembly and a temperature sensing body, the shell assembly is provided with an air duct and an air outlet, the fan assembly is connected with the air outlet through the air duct, and the heating assembly is located in the air duct. The temperature sensing body is located in the air duct or at the air outlet, the temperature sensing body is used for sensing temperature changes and adjusting the size according to the temperature changes, an air vent is arranged on the temperature sensing body or between the temperature sensing body and the side wall of the air duct, and the area of the air vent changes with the size of the temperature sensing body.
[0007] In an embodiment, when the temperature sensing body is located in the air duct, the temperature sensing body is arranged between the heating assembly and the air outlet.
[0008] In an embodiment, the temperature sensing body is a shape memory alloy or a bimetallic strip.
[0009] In an embodiment, the temperature sensing body is in the form of a louver, and the blades of the louver deform according to the temperature changes to adjust the area of the air vent.
[0010] In an embodiment, the bathroom heater further comprises a detection assembly arranged in the air duct. The detection component is configured to detect the air pressure in the air duct and / or the area of the air vent.
[0011] In an embodiment, the detection component comprises an air pressure detection component arranged on the air duct between the outlet of the fan component and the heating component. The air pressure detection component is configured to detect the air pressure in the air duct.
[0012] In an embodiment, the detection component comprises an air vent area detection component. The air vent area detection component is configured to detect the area of the air vent.
[0013] In an embodiment, the air vent area detection component comprises a camera component configured to capture an image of the air vent to obtain the area of the air vent according to the image of the air vent.
[0014] In an embodiment, the camera component is further configured to capture an image of the temperature sensing body to determine whether the temperature sensing body has a fault according to the image of the temperature sensing body.
[0015] In an embodiment, the air vent area detection component comprises a sensor component configured to detect the displacement of the temperature sensing body to obtain the area of the air vent according to the displacement.
[0016] In addition, to achieve the above object, the present application further provides a control method of a bath heater, the bath heater comprising a housing component, a fan component, a heating component, a temperature sensing body, and a detection component, the housing component being provided with an air duct and an air outlet, the temperature sensing body being provided with an air vent or the temperature sensing body and a side wall of the air duct being provided with an air vent. The control method comprises: controlling the fan component and the heating component to be turned on after the bath heater starts the heating function; obtaining detection information of the detection component; automatically adjusting the working state of the fan component and / or the heating component according to the detection information.
[0017] In an embodiment, the detection component comprises an air pressure detection component. The step of automatically adjusting the working state of the fan component and / or the heating component according to the detection information comprises: obtaining the air pressure in the air duct detected by the air pressure detection component according to the detection information; automatically adjusting the working state of the fan component and / or the heating component according to the air pressure.
[0018] In an embodiment, the step of automatically adjusting the working state of the fan assembly and / or the heating assembly according to the wind pressure comprises: when the wind pressure is greater than or equal to a preset wind pressure threshold, increasing the working gear of the fan assembly and / or decreasing the heating power of the heating assembly.
[0019] In an embodiment, after the step of when the wind pressure is greater than or equal to a preset wind pressure threshold, increasing the working gear of the fan assembly and / or decreasing the heating power of the heating assembly, the method further comprises: when the working gear is a target gear and the heating power is a target power, obtaining a first duration that the wind pressure is greater than or equal to the preset wind pressure threshold; when the first duration is equal to a preset time length, turning off the heating assembly or controlling the bathroom heater to stop working.
[0020] In an embodiment, the bathroom heater further comprises a temperature sensor configured to detect the air outlet temperature of the air outlet; the step of automatically adjusting the working state of the fan assembly and / or the heating assembly according to the wind pressure comprises: when the air outlet temperature is less than a set temperature and the wind pressure is less than a preset wind pressure threshold, increasing the heating power of the heating assembly or decreasing the working gear of the fan assembly; when the air outlet temperature is less than a set temperature and the wind pressure is greater than or equal to a preset wind pressure threshold, controlling the heating power of the heating assembly to remain unchanged and decreasing the working gear of the fan assembly.
[0021] In an embodiment, the detection assembly comprises an air vent area detection assembly; the step of automatically adjusting the working state of the fan assembly and / or the heating assembly according to the detection information comprises: obtaining, according to the detection information, the area of the air vent detected by the air vent area detection assembly; automatically adjusting the working state of the fan assembly and / or the heating assembly according to the area.
[0022] In an embodiment, the step of automatically adjusting the working state of the fan assembly and / or the heating assembly according to the area comprises: when the area is less than or equal to a first preset range, increasing the working gear of the fan assembly and / or decreasing the heating power of the heating assembly.
[0023] In an embodiment, after the step of when the area is less than or equal to a first preset range, increasing the working gear of the fan assembly and / or decreasing the heating power of the heating assembly, the method further comprises: acquiring a second duration when the area is less than or equal to a first preset range, while the working gear is the target gear and the heating power is the target power; turning off the heating assembly or controlling the bath heater to stop working when the second duration is equal to a preset time length.
[0024] In an embodiment, the bath heater further comprises a temperature sensor configured to detect an air outlet temperature of the air outlet. The step of automatically adjusting the working state of the fan assembly and / or the heating assembly according to the area comprises: increasing the heating power of the heating assembly or decreasing the working gear of the fan assembly when the air outlet temperature is less than a set temperature and the area is greater than a second preset range; controlling the heating power of the heating assembly to remain unchanged and decreasing the working gear of the fan assembly when the air outlet temperature is less than the set temperature and the area is less than or equal to the first preset range, wherein the first preset range is less than the second preset range.
[0025] In an embodiment, the bath heater further comprises a temperature sensor configured to detect an air outlet temperature of the air outlet. After the step of acquiring the detection information of the detection assembly, the method further comprises: performing the step of automatically adjusting the working state of the fan assembly and / or the heating assembly according to the detection information when the air outlet temperature is greater than or equal to the set temperature.
[0026] In an embodiment, after the step of controlling the fan assembly to be turned on, the method further comprises: acquiring a wind pressure in the air duct and an area of the air vent; controlling the working gear of the fan assembly to operate at a target working gear when the wind pressure is greater than or equal to an abnormal value or the area of the air vent is less than a preset value; when the operating time is equal to a target time and the wind pressure is greater than or equal to the abnormal value, or when the operating time is equal to the target time and the area of the air vent is less than the preset value, not turning on the heating assembly, generating an abnormal prompt, and controlling the bath heater to shut down; performing the step of controlling the heating assembly to be turned on when the operating time is equal to the target time and the wind pressure is less than the abnormal value, or when the operating time is equal to the target time and the area of the air vent is greater than or equal to the preset value.
[0027] The one or more technical solutions provided in the application, the bath heater comprises a shell assembly, a fan assembly, a heating assembly and a temperature sensing body, the shell assembly is provided with an air duct and an air outlet, the fan assembly is communicated with the air outlet through the air duct, and the heating assembly is located in the air duct; the temperature sensing body is located in the air duct or at the air outlet, the temperature sensing body is used for sensing temperature change and adjusting size according to temperature change, an air vent is arranged on the temperature sensing body or between the temperature sensing body and the side wall of the air duct, and the area of the air vent changes with the size change of the temperature sensing body. The temperature sensing body can automatically adjust its form according to the temperature, and then change the opening degree of the air vent, so as to flexibly regulate the air flow in the air duct, thereby accurately controlling the temperature of the air outlet. The heating efficiency of the bath heater is improved through the intelligent adjustment mechanism. BRIEF DESCRIPTION OF DRAWINGS
[0028] The drawings incorporated into the specification and forming a part thereof show embodiments consistent with the present application and, together with the specification, serve to explain the principles of the application.
[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below, and obviously, other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.
[0030] Figure 1 A structural schematic diagram provided for the bath heater embodiment one of the present application; Figure 2 Another structural schematic diagram provided for the bath heater embodiment one of the present application; Figure 3 A structural schematic diagram provided for the bath heater embodiment two of the present application; Figure 4 A flowchart provided for the control method embodiment one of the bath heater of the present application; Figure 5 A flowchart provided for the control method embodiment two of the bath heater of the present application; Figure 6 A flowchart provided for the control method embodiment three of the bath heater of the present application; Figure 7 A brief flowchart provided for the control method embodiment one of the bath heater of the present application.
[0031] Explanation of the reference signs: The shell assembly 10, the fan assembly 20, the heating assembly 30, the temperature sensing body 40, the controller 50, the air duct 11, the air outlet 12 and the detection assembly 60.
[0032] The object, functional characteristics and advantages of the present application will be further explained in conjunction with the embodiments, with reference to the accompanying drawings. DETAILED DESCRIPTION
[0033] It should be understood that the specific embodiments described herein are merely intended to explain the technical solutions of the present application, and are not intended to limit the present application.
[0034] In order to better understand the technical solutions of the present application, the specific embodiments will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0035] The main solution of the embodiment of the present application is: the bath heater includes: a shell assembly, a fan assembly, a heating assembly and a temperature sensing body, the shell assembly is provided with an air duct and an air outlet, the fan assembly is connected with the air outlet through the air duct, and the heating assembly is located in the air duct; the temperature sensing body is located in the air duct or at the air outlet, the temperature sensing body is used for sensing temperature change and adjusting size according to temperature change, an air vent is provided on the temperature sensing body or between the temperature sensing body and the side wall of the air duct, and the area of the air vent changes with the size change of the temperature sensing body.
[0036] In order to prevent the air outlet from yellowing due to high temperature, the prior art usually only uses a temperature sensor to control the temperature of the air outlet below the set temperature, and once the temperature sensor fails, the temperature of the air outlet will not be controlled, which is easy to cause yellowing. In addition, the existing bath heater cannot automatically adjust the air outlet information according to the air outlet temperature under the conditions of no air outlet swing leaf and unchanged fan working position.
[0037] The present application provides a solution, which sets a temperature sensing body in the air duct or at the air outlet of the bath heater, and an air vent is provided on the temperature sensing body or between the temperature sensing body and the side wall of the air duct, so that the air volume of the bath heater can be automatically adjusted according to the temperature, without the need of air outlet swing leaf, and the structure is simpler and the cost is lower.
[0038] It should be noted that the execution subject of the embodiment can be a computing service device with data processing, network communication and program running functions, such as a tablet computer, a personal computer, a mobile phone, etc., or an electronic device capable of realizing the above functions, a controller in a bath heater, etc. The controller in the bath heater will be taken as an example to describe the embodiment and the following embodiments.
[0039] Based on this, the embodiment of the present application provides a bath heater, which refers to Figure 1 , Figure 1 The structure of the first embodiment of the bath heater of the present application is shown in the figure.
[0040] In this embodiment, the bath heater includes a shell assembly 10, a fan assembly 20, a heating assembly 30, a temperature sensing body 40 and a controller 50.
[0041] The shell assembly 10 is provided with an air duct 11 and an air outlet 12, the fan assembly 20 is connected with the air outlet 12 through the air duct 11, and the heating assembly 30 is located in the air duct 11. The temperature sensing body 40 is located in the air duct 11, and the temperature sensing body 40 is used for sensing temperature change and adjusting size according to temperature change.
[0042] In a specific implementation, when the temperature sensing body 40 is located in the air duct 11, the temperature sensing body 40 is arranged between the heating assembly 30 and the air outlet 12.
[0043] As shown in Figure 2 , Figure 2 is another structural schematic diagram of the shower heater, Figure 2 , the temperature sensing body 40 is located at the air outlet 12.
[0044] The temperature sensing body 40 or the temperature sensing body 40 and the side wall of the air duct 11 are provided with a vent (not shown in the figure), and the area of the vent changes with the size change of the temperature sensing body 40. The controller 50 is electrically connected with the fan assembly 20, the heating assembly 30 and the temperature sensing body 40 respectively, and the controller 50 is used for controlling the fan assembly 20 and the heating assembly 30 to start after the shower heater starts the heating function, obtaining detection information related to the state of the temperature sensing body 40, and automatically adjusting the working state of the fan assembly 20 and / or the heating assembly 30 according to the detection information. By sensing the temperature through the temperature sensing body 40 and automatically adjusting the area of the vent, the outlet air temperature is adjusted, without the need of outlet air swing leaf, the structure is simple and the cost is low, and the problem of yellowing of the air outlet caused by too high temperature can be avoided, the safety and reliability of the shower heater are improved.
[0045] It should be noted that the temperature sensing body 40 can expand and contract with heat and cold, so that the temperature sensing body 40 can change its size when the temperature is different, and then change the size of the vent.
[0046] The shower heater in the embodiment comprises a shell assembly 10, a fan assembly 20, a heating assembly 30 and a temperature sensing body 40. The shell assembly 10 is provided with an air duct 11 and an air outlet 12. The fan assembly 20 is connected with the air outlet 12 through the air duct 11. The heating assembly 30 is located in the air duct 11. The temperature sensing body 40 is located in the air duct 11 or at the air outlet 12. The temperature sensing body 40 is used for sensing temperature change and adjusting size according to temperature change. The temperature sensing body 40 or the temperature sensing body 40 and the side wall of the air duct 11 are provided with a vent, and the area of the vent changes with the size change of the temperature sensing body 40. The temperature sensing body 40 can automatically adjust its form according to the temperature, and then change the opening degree of the vent, so as to flexibly regulate the air flow in the air duct 11, thereby accurately controlling the temperature of the air outlet. The intelligent adjustment mechanism improves the heating efficiency of the shower heater.
[0047] In an implementation, the temperature sensing body is a shape memory alloy or a bimetallic strip.
[0048] It should be noted that both the shape memory alloy and the bimetallic strip can achieve precise and reversible thermal expansion and contraction or deformation. The shape memory alloy has a large deformation amount and is sensitive to reaction, and is suitable for scenarios requiring large-area changes of the air vent. The bimetallic strip has low cost and high reliability, and is suitable for adjusting the size of the gap by bending. Therefore, the specific material of the temperature sensing body can be set according to the requirements.
[0049] In an implementation, the temperature sensing body is in the form of a louver. The blades of the louver deform according to the temperature change to adjust the area of the air vent.
[0050] It should be noted that the temperature sensing body in the form of a louver has a unique design. The blades of the louver can deform with the change of temperature. When the temperature rises, the deformation of the blades reduces the opening degree of the window, thereby increasing the area of the air vent, so that more airflow can pass through. Conversely, when the temperature decreases, the blades will contract or adjust back to the original angle, reducing the area of the air vent and limiting the passage of airflow. This design not only achieves precise adjustment of the area of the air vent, but also enhances the intelligence and automation level of the bathroom heater. Through the temperature sensing body in the form of a louver, the bathroom heater can more accurately perceive the temperature change and respond quickly to ensure that the temperature of the air outlet always remains within a comfortable and safe range, achieving stepless adjustment.
[0051] Based on the first embodiment of the bathroom heater of the present application, in the second embodiment of the bathroom heater of the present application, the same or similar contents as the above embodiment one can refer to the above description, and will not be described in detail hereinafter. On this basis, please refer to Figure 3 , the bathroom heater further comprises a detection assembly 60.
[0052] The detection assembly 60 is arranged in the air duct 11, and the detection assembly 60 is used to detect the air pressure in the air duct and / or the area of the air vent.
[0053] It should be noted that the introduction of the detection assembly 60 further enhances the intelligent control capability of the bathroom heater. By detecting the air pressure in the air duct 11 and the area of the air vent in real time, the detection assembly 60 can provide accurate data support for the controller 50, so that the controller 50 can make more fine adjustments to the working states of the fan assembly 20 and the heating assembly 30 according to these detection information. At the same time, the setting of the detection assembly 60 also enables the bathroom heater to automatically adapt to different working environments according to the actual use, thereby improving the applicability and stability of the bathroom heater.
[0054] In an embodiment, the detecting assembly 60 comprises a wind pressure detecting assembly arranged on the air duct 11 between the outlet of the fan assembly 20 and the heating assembly 30. The wind pressure detecting assembly is configured to detect the wind pressure in the air duct 11.
[0055] It should be noted that the wind pressure detecting assembly is configured to detect the wind pressure in the air duct in real time, so that the controller 50 of the shower can automatically adjust the working state of the fan assembly 20 and / or the heating assembly 30 according to the wind pressure. For example, when the wind pressure is greater than a certain threshold, the working gear of the fan assembly 20 is raised and the heating power of the heating assembly 30 is reduced, or only the working gear of the fan assembly 20 is raised, and the heating power of the heating assembly 30 can also be reduced.
[0056] It should be noted that the wind pressure detecting assembly can be a wind pressure sensor, and the optimal position of the wind pressure sensor is the air duct between the outlet of the fan assembly 20 and the heating assembly 30, which can most directly reflect the resistance change of the entire air duct system and the data is most representative.
[0057] In an embodiment, in addition to controlling the fan assembly 20 and / or the heating assembly 30 by the wind pressure, the fan assembly 20 and / or the heating assembly 30 can also be controlled according to the size of the air vent, so the detecting assembly 60 can also comprise an air vent area detecting assembly; the air vent area detecting assembly is configured to detect the area of the air vent.
[0058] It should be noted that the air vent area detecting assembly is configured to detect the size of the air vent, and the air vent area detecting assembly can be arranged on the air vent or on the temperature sensor 40 to detect the area of the air vent. After obtaining the area of the air vent, the controller 50 of the shower can automatically adjust the working state of the fan assembly 20 and / or the heating assembly 30 according to the area of the air vent. For example, when the area of the air vent is less than or equal to a certain area range, the working gear of the fan assembly 20 is raised and the heating power of the heating assembly 30 is reduced, or only the working gear of the fan assembly 20 is raised, and the heating power of the heating assembly 30 can also be reduced.
[0059] In an embodiment, the air vent area detecting assembly comprises a camera assembly, and the camera assembly is configured to capture the image of the air vent to obtain the area of the air vent according to the image of the air vent.
[0060] It should be noted that the camera assembly can be a camera, such as a 2D camera, which can capture the image of the air vent and analyze the image to determine the size of the air vent.
[0061] In an embodiment, the camera assembly is further configured to capture an image of the temperature sensing body, and determine whether the temperature sensing body has a fault based on the image of the temperature sensing body.
[0062] It should be understood that the camera assembly can also capture image data of the temperature sensing body, and identify the image data of the temperature sensing body to detect whether the temperature sensing body is stuck or damaged, and timely detect whether the temperature sensing body has a fault, thereby improving the control effect of the bathroom heater.
[0063] In an embodiment, the sensor assembly can be used instead of the camera to reduce the detection cost. Therefore, the air outlet area detection assembly further comprises a sensor assembly configured to detect a displacement of the temperature sensing body to obtain the area of the air outlet based on the displacement.
[0064] It should be understood that the sensor assembly can be a linear displacement sensor or a Hall sensor. The sensor assembly is used instead of the camera to detect the displacement of the temperature sensing body, thereby converting the deformation of the temperature sensing body into linear or angular displacement. The displacement of the temperature sensing body is directly read by the sensor assembly, and the displacement is calculated by the controller of the bathroom heater, thereby indirectly and accurately obtaining the area of the air outlet. Compared with image processing, the detection of the sensor assembly is more reliable and has a lower cost.
[0065] The detection assembly 60 arranged in the air duct 11 is used to detect the air pressure in the air duct 11 and / or the area of the air outlet. The working state of the fan assembly 20 and / or the heating assembly 30 can be automatically adjusted based on the detected information, thereby effectively avoiding the safety hazard caused by excessively high temperature.
[0066] The present application also provides a control method of a bathroom heater. The bathroom heater comprises the housing assembly, the fan assembly, the heating assembly, the temperature sensing body, and the detection assembly described above. The housing assembly is provided with an air duct and an air outlet. The temperature sensing body is provided with an air outlet or between the temperature sensing body and the side wall of the air duct.
[0067] Based on this, the present application provides a control method of a bathroom heater. For details, refer to Figure 4 , Figure 4 FIG. 1 is a flowchart of a first embodiment of the control method of the bathroom heater.
[0068] In this embodiment, the control method of the bathroom heater comprises steps S10-S30. Step S10: After the bathroom heater starts the heating function, the fan assembly and the heating assembly are turned on.
[0069] It should be noted that when the bath heater starts the heating function, the fan assembly and the heating assembly can be opened in turn. After the fan assembly is opened, the air pressure detected by the detection assembly and the area of the air vent can be obtained, so as to determine whether the bath heater is abnormal according to the air pressure or the area of the air vent. If it is abnormal, the heating assembly can not be opened. Therefore, after the fan assembly is opened, the air pressure in the air duct and the area of the air vent are obtained. When the air pressure is greater than or equal to an abnormal value or the area of the air vent is less than a preset value, the working gear of the fan assembly is controlled to run at a target working gear. When the running time is equal to a target time and the air pressure is greater than or equal to the abnormal value, or when the running time is equal to the target time and the area of the air vent is less than the preset value, the heating assembly is not opened, an abnormal prompt is generated, and the bath heater is controlled to shut down. When the running time is equal to the target time and the air pressure is less than the abnormal value, or when the running time is equal to the target time and the area of the air vent is greater than or equal to the preset value, the step of controlling the heating assembly to be opened is performed.
[0070] It can be understood that after the fan assembly is opened, the air pressure in the air duct can be detected by the air pressure detection assembly in the detection assembly, and the area of the air vent can be detected by the air vent area detection assembly in the detection assembly. If the detected air pressure is greater than or equal to a preset abnormal value, or the area of the air vent is less than a preset value, it may indicate that the air duct is blocked, the temperature sensor fails, or other abnormal conditions. At this time, the controller controls the fan assembly to run at a target working gear for a period of time. The target working gear is the maximum gear of the fan assembly, and the target time can be set according to the actual situation, for example, 10s, 15s, etc. After the running time reaches the target time, if the air pressure is still greater than or equal to the abnormal value, or the area of the air vent is still less than the preset value, it is determined that the bath heater is abnormal, the heating assembly is not opened, and an abnormal prompt information is generated, and the bath heater is controlled to shut down to avoid safety accidents caused by abnormal conditions. If the air pressure is less than the abnormal value and the area of the air vent is greater than or equal to the preset value when the running time reaches the target time, it indicates that the air duct and the temperature sensor are working normally. At this time, the step of controlling the heating assembly to be opened is performed, so that the bath heater can normally perform the heating work.
[0071] Step S20: Obtain the detection information of the detection assembly.
[0072] It should be noted that after the fan assembly and the heating assembly are turned on, the detection assembly will continue to detect information related to the state of the temperature-sensing body. These detection information includes the air pressure in the air duct and the area of the air vent, etc. The air pressure detection assembly will monitor the change of the air pressure in the air duct in real time and transmit the air pressure data to the controller, and the air vent area detection assembly will obtain the area information of the air vent through the camera assembly or the sensor assembly, and also feed back the data to the controller. After receiving these detection information, the controller will comprehensively analyze and process, so as to accurately adjust the working state of the fan assembly and the heating assembly according to the information subsequently.
[0073] In a possible implementation, the bathroom heater further comprises a temperature sensor for detecting the air outlet temperature of the air outlet, and after step S20, further comprising: When the air outlet temperature is greater than or equal to the set temperature, the step of automatically adjusting the working state of the fan assembly and / or the heating assembly according to the detection information is performed.
[0074] It should be noted that the set temperature can be a temperature set by the user in advance, or a default temperature value set when the bathroom heater is manufactured. When the temperature sensor detects that the air outlet temperature of the air outlet is greater than or equal to the set temperature, it indicates that the current air outlet temperature can be too high, and at this time the controller will perform the step of automatically adjusting the working state of the fan assembly and / or the heating assembly according to the detection information. For example, if it is detected that the air pressure is large and the air vent area is small, it indicates that the airflow in the air duct is seriously blocked, and the controller will control the fan assembly to increase the working gear to enhance the air supply capacity, and at the same time appropriately reduce the heating power of the heating assembly to avoid the air outlet temperature from further rising; if the air pressure is normal but the air vent area is small, the controller can only reduce the heating power of the heating assembly; if the air pressure and the air vent area are both in the normal range, but the air outlet temperature is still close to the set temperature, the controller will also appropriately reduce the power of the heating assembly to ensure that the air outlet temperature is maintained within a safe and comfortable range. In this way, the working state of each component of the bathroom heater can be flexibly and accurately adjusted according to the actual detection of multiple information, effectively avoiding the safety hazards caused by the high air outlet temperature, and improving the user experience.
[0075] Step S30: automatically adjusting the working state of the fan assembly and / or the heating assembly according to the detection information.
[0076] Specifically, after obtaining the detection information such as the air pressure in the air duct and the area of the air vent, the controller analyzes and judges the information according to the preset algorithm and logic. If it is detected that the air pressure is too high, it may mean that there is a large resistance in the air duct or the air vent area is too small to limit the airflow circulation. At this time, the controller will adjust the fan assembly to reduce its working gear and reduce the air output to reduce the air pressure in the air duct. At the same time, considering that the air pressure may be too high due to factors such as the heating assembly power being too large causing air to expand when heated, the controller may also simultaneously reduce the heating power of the heating assembly to avoid further exacerbating the pressure change in the air duct due to the temperature being too high. Conversely, when the air pressure is detected to be too low, it may indicate that the working gear of the fan assembly is too low or the air vent area is too large, and the airflow flows smoothly. At this time, the controller will appropriately increase the working gear of the fan assembly to increase the air volume to ensure the heating effect of the bathroom heater. If the air pressure is too low due to the abnormal increase in the air vent area, the controller will also adjust the heating assembly accordingly to ensure that the temperature at the air outlet is stable within a comfortable range.
[0077] In a specific implementation, the air outlet temperature is below 35℃, the air vent area is in a first range, and the air pressure is the smallest at this time. When the air outlet temperature is between 35℃ and 45℃, the air vent area is in a second range. When the air outlet temperature is between 46℃ and 55℃, the air vent area is in a third range. When the air outlet temperature is above 55℃, the air vent area is in a fourth range, and the air pressure is the largest at this time. Among them, the first range is larger than the second range, the second range is larger than the third range, and the third range is larger than the fourth range.
[0078] The embodiment provides a control method of a bathroom heater. The bathroom heater comprises a shell assembly, a fan assembly, a heating assembly, a temperature sensor and a detection assembly. The shell assembly is provided with an air duct and an air outlet. An air vent is arranged on the temperature sensor or between the temperature sensor and the side wall of the air duct. The control method comprises the following steps: after the bathroom heater starts the heating function, the fan assembly and the heating assembly are controlled to be turned on; detection information of the detection assembly is obtained; and the working state of the fan assembly and / or the heating assembly is automatically adjusted according to the detection information. The fan assembly and the heating assembly are automatically turned on by the controller without manual intervention, and the use convenience is improved. The fan assembly and the heating assembly work cooperatively to quickly generate hot air and deliver the hot air to the air outlet through the air duct, and the bathroom heating time is shortened. The temperature sensor senses the temperature change in real time, the air outlet temperature is controlled by adjusting the area of the air vent, and equipment damage or safety hazards caused by the temperature being too high are avoided. The detection assembly obtains information such as the air pressure and the area of the air vent, and the controller dynamically adjusts the working state of the fan and the heating assembly according to the data, so that precise temperature control is realized.
[0079] In the second embodiment of the control method of the bath heater, the same or similar contents as the first embodiment of the control method of the bath heater can be referred to the foregoing description, and will not be described hereinafter. On this basis, please refer to Figure 5 The step S30 comprises steps S301-S302. In the embodiment, the detection component comprises a wind pressure detection component.
[0080] The step S301 comprises obtaining the wind pressure in the air duct detected by the wind pressure detection component according to the detection information.
[0081] In the embodiment, the wind pressure detection component is used to detect the wind pressure in the air duct, and thus the real-time wind pressure in the air duct can be obtained according to the detection information.
[0082] The step S302 comprises automatically adjusting the working state of the fan component and / or the heating component according to the wind pressure.
[0083] It can be understood that the working gear of the fan component and / or the heating power of the heating component can be adjusted according to the size of the wind pressure, for example, the size of the wind pressure is compared with the set threshold value, so as to determine whether the working gear of the fan component and / or the heating power of the heating component need to be adjusted.
[0084] In an embodiment, the step S302 can comprise a step A11: when the wind pressure is greater than or equal to a preset wind pressure threshold value, the working gear of the fan component is increased and / or the heating power of the heating component is decreased.
[0085] It should be noted that the preset wind pressure threshold value is a wind pressure reference value set in the controller in advance. When the wind pressure detected by the wind pressure detection component is greater than or equal to the preset wind pressure threshold value, it indicates that the air flow in the air duct is possibly hindered to a certain extent, or the heat generated by the heating component causes the air to expand and the wind pressure to rise. At this time, the controller will issue an instruction to increase the working gear of the fan component, so that the fan operates at a higher speed to increase the air supply amount, so as to improve the air flow condition in the air duct. Further, in order to prevent the situation that the outflow temperature is too high or the equipment is damaged due to the too high wind pressure and the too large heating power, the controller will also decrease the heating power of the heating component to reduce the heat generation. Through such an adjustment mode, the bath heater can still maintain a relatively stable and safe working state when the wind pressure is abnormal.
[0086] In a feasible real-time manner, after step A11, further comprising: when the working gear is the target gear and the heating power is the target power, acquiring a first duration that the air pressure is greater than or equal to the preset air pressure threshold; when the first duration is equal to a preset time length, shutting down the heating assembly or controlling the bath heater to stop working.
[0087] It should be noted that after the gear of the fan is adjusted and the power of the heating assembly is adjusted, it is still necessary to determine whether the working gear of the fan or the heating power reaches the limit, the target gear is the maximum gear of the working gear, and the target heating power is the minimum power of the target heating assembly.
[0088] When the working gear of the fan assembly is raised to the target gear and the heating power of the heating assembly is reduced to the target power, the controller starts the timing function to acquire a first duration that the air pressure is greater than or equal to a preset air pressure threshold. The preset time length is a time reference value set in advance in the controller, and the specific value can be flexibly adjusted according to the actual use and safety requirements of the bath heater. When the first duration reaches the preset time length, it indicates that there is an abnormal situation in the current air duct, which may be a serious blockage or other faults. Even if the fan assembly and the heating assembly have been adjusted, the air pressure condition cannot be effectively improved. In order to avoid equipment damage or safety accidents caused by long-term abnormal working, the controller will take timely measures to shut down the heating assembly to stop heat generation, or control the entire bath heater to stop working, thereby ensuring the safety of the bath heater and the user.
[0089] In a feasible implementation, the bath heater further comprises a temperature sensor configured to detect the outlet air temperature of the air outlet.
[0090] Therefore, step S302 can further comprise steps A12-A13: Step A12: when the outlet air temperature is less than the set temperature and the air pressure is less than the preset air pressure threshold, increasing the heating power of the heating assembly or reducing the working gear of the fan assembly. It should be noted that if the outlet air temperature is less than the set temperature and the air pressure is also less than the preset air pressure threshold, it indicates that the current outlet air temperature of the bath heater is insufficient, and the airflow in the air duct is relatively smooth without obvious obstruction. In order to improve the outlet air temperature, the controller can issue an instruction to increase the heating power of the heating assembly to increase the heat generation, thereby increasing the outlet air temperature; or the controller can also reduce the working gear of the fan assembly to reduce the air supply, so that the heat is more fully accumulated in the air duct, thereby improving the outlet air temperature. Through such an adjustment mode, the bath heater can more effectively improve the heating effect under the premise of meeting the safe working condition.
[0091] Step A13: when the air outlet temperature is less than the set temperature and the air pressure is greater than or equal to the preset air pressure threshold, the heating power of the heating assembly is maintained unchanged and the working gear of the fan assembly is reduced.
[0092] It should be noted that if the air outlet temperature is less than the set temperature but the air pressure is greater than or equal to the preset air pressure threshold, it indicates that the current bath heater air outlet temperature is insufficient, and there may be a certain degree of obstruction in the air duct, causing poor airflow circulation. In this case, if the heating power of the heating assembly is simply increased, the airflow in the air duct may not be smooth, so that the heat cannot be effectively dissipated in time, which may cause local temperature to be too high, and thus cannot effectively improve the air outlet temperature, and may also cause damage to the equipment. Therefore, the controller controls the heating power of the heating assembly to be maintained unchanged to avoid a series of problems caused by the increase of the power; at the same time, the working gear of the fan assembly is reduced to reduce the air supply, so that the airflow in the air duct can be relatively slowed down, so that the heat can be more fully accumulated and transmitted in the air duct, which helps to improve the air outlet temperature to a certain extent, and reduces the adverse effects caused by the high air pressure on the equipment, so as to ensure the safe and stable operation of the bath heater. Through such an adjustment strategy, the working state of the fan assembly and the heating assembly can be accurately adjusted according to the actual conditions of the air outlet temperature and the air pressure, so as to achieve better heating effect and equipment protection.
[0093] The detection assembly of the present embodiment includes an air pressure detection assembly, and the air pressure in the air duct detected by the air pressure detection assembly is obtained according to the detection information; and the working state of the fan assembly and / or the heating assembly is automatically adjusted according to the air pressure. Through the above steps, the working gear of the fan assembly and the heating power of the heating assembly can be flexibly and accurately adjusted according to the real-time air pressure in the air duct, so that the bath heater can maintain good working performance under different working conditions, and provide comfortable and safe heating experience for users.
[0094] Based on the first embodiment of the control method of the bath heater of the present application, in the third embodiment of the control method of the bath heater of the present application, the same or similar contents as the above-mentioned first embodiment of the control method of the bath heater can be referred to the above description, and will not be described hereinafter. On this basis, please refer to Figure 6 , step S30 includes steps S301'~S302': In the present embodiment, the detection assembly includes a vent area detection assembly.
[0095] Step S301': the area of the vent detected by the vent area detection assembly is obtained according to the detection information.
[0096] In specific implementation, the vent area detection assembly is used to detect the area of the vent, so that the area of the vent can be obtained according to the detection information.
[0097] Step S302': automatically adjusting the working state of the fan assembly and / or the heating assembly according to the area.
[0098] It can be understood that the working gear of the fan assembly and / or the heating power of the heating assembly can be adjusted according to the size of the area, for example, comparing the size of the area with the set area range to determine whether the working gear of the fan assembly and / or the heating power of the heating assembly needs to be adjusted.
[0099] In a possible implementation, step S302' can include step B11: when the area is less than or equal to a first preset range, increasing the working gear of the fan assembly and / or reducing the heating power of the heating assembly.
[0100] It should be noted that the first preset range is the fourth range described above. If the area of the air vent is less than or equal to the fourth range, it indicates that the air vent is relatively narrow at this time, and the airflow is hindered when passing through, and the air pressure in the air duct may be correspondingly increased, and the air volume may be insufficient, affecting the heating effect and air circulation of the bathroom heater. In this case, the controller will issue an instruction to increase the working gear of the fan assembly, so that the fan operates at a higher speed to increase the air supply to improve the airflow condition in the air duct.
[0101] Further, in order to prevent the situation that the air outlet temperature is too high or the equipment is damaged due to the narrow air vent and the excessive heating power, the controller will also reduce the heating power of the heating assembly to reduce the generation of heat. Through such an adjustment mode, the bathroom heater can still maintain a relatively stable and safe working state when the area of the air vent is abnormal.
[0102] In a possible implementation, after step B11, it further includes: when the working gear is the target gear and the heating power is the target power, acquiring a second duration that the area is less than or equal to the first preset range; when the second duration is equal to a preset time length, turning off the heating assembly or controlling the bathroom heater to stop working.
[0103] It should be noted that after adjusting the gear of the fan and the power of the heating assembly, it is also necessary to determine whether the working gear of the fan or the heating power reaches the limit. The target gear is the maximum gear of the working gear, and the target heating power is the minimum power of the target heating assembly.
[0104] When the working gear of the fan assembly is raised to the target gear and the heating power of the heating assembly is reduced to the target power, the controller starts a timing function to obtain a second duration during which the area of the air vent is less than or equal to the first preset range. The preset duration is a time reference value set in advance in the controller, and the specific value can be flexibly adjusted according to the actual use of the bathroom heater and safety requirements. When the second duration reaches the preset duration, it indicates that there is an abnormal situation in the current air duct, which may be a serious blockage or other faults. Even if the fan assembly and the heating assembly have been adjusted, the small area of the air vent cannot be effectively improved. In order to avoid equipment damage or safety accidents caused by long-term abnormal operation, the controller will take measures to shut down the heating assembly, stop heat generation, or control the entire bathroom heater to stop working to ensure the safety of the bathroom heater and the user.
[0105] In an available implementation, the bathroom heater further comprises a temperature sensor configured to detect the outlet temperature of the air outlet.
[0106] Therefore, the step S302' can further comprise steps B12-B13: Step B12: when the outlet temperature is less than the set temperature and the area is greater than the second preset range, increasing the heating power of the heating assembly or reducing the working gear of the fan assembly. It should be noted that the second preset range is the third range described above.
[0107] If the outlet temperature is less than the set temperature and the area is greater than the second preset range, it indicates that the outlet temperature of the current bathroom heater is insufficient, but the air vent is relatively open, and the airflow is less hindered. The air pressure in the air duct can be relatively normal. In order to improve the outlet temperature, the controller can issue an instruction to increase the heating power of the heating assembly to increase the generation of heat, thereby increasing the outlet temperature; or the controller can also reduce the working gear of the fan assembly to reduce the air supply, so that the heat is more fully accumulated in the air duct, thereby improving the outlet temperature. Through such an adjustment mode, the heating effect of the bathroom heater can be more effectively improved while ensuring smooth airflow in the air duct.
[0108] Step B13: when the outlet temperature is less than the set temperature and the area is less than or equal to the first preset range, the heating power of the heating assembly is maintained unchanged and the working gear of the fan assembly is reduced, wherein the first preset range is less than the second preset range.
[0109] If the outlet air temperature is less than the set temperature and the area of the air vent is less than or equal to the first preset range, it indicates that the current bath heater outlet air temperature is insufficient, and the air vent is relatively narrow, and the airflow is hindered when passing through, and there may be airflow stagnation in the air duct. In this case, if the heating power of the heating assembly is simply increased, the airflow in the air duct may be limited, so that the heat cannot be dissipated in time, causing local temperature to be too high, which not only cannot effectively improve the outlet air temperature, but also may cause damage to the equipment. Therefore, the controller controls the heating power of the heating assembly to remain unchanged to avoid problems caused by power increase; at the same time, the working gear of the fan assembly is reduced to reduce the air supply, so that the airflow in the air duct is relatively slowed down, so that the heat can be more fully accumulated and transmitted in the air duct, which helps to improve the outlet air temperature to a certain extent, and reduces the adverse effects of the narrow air vent and high air pressure on the equipment, and ensures the safe and stable operation of the bath heater. Through such an adjustment strategy, the working state of the fan assembly and the heating assembly can be accurately adjusted according to the actual conditions of the outlet air temperature and the area of the air vent, so as to achieve better heating effect and equipment protection.
[0110] The detection assembly in the embodiment includes an air vent area detection assembly; the area of the air vent detected by the air vent area detection assembly is obtained according to the detection information; and the working state of the fan assembly and / or the heating assembly is automatically adjusted according to the area. Through the above steps, the working gear of the fan assembly and the heating power of the heating assembly can be flexibly and accurately adjusted according to the real-time area of the air vent, so that the bath heater can maintain good working performance under different working conditions, and provide comfortable and safe heating experience for users.
[0111] For example, in order to help understand the implementation process of the control method of the bath heater obtained after the above embodiment one, please refer to Figure 7 , Figure 7 A brief flowchart of a control method of a bath heater is provided, specifically: after the bath heater starts the heating function, the fan assembly and the heating assembly are started, and the size of the air pressure or the area of the air vent is collected by the detection assembly, to determine whether the air pressure is greater than or equal to a preset air pressure threshold, or whether the area of the air vent is less than or equal to a set value, i.e. the first preset range, if yes, the working state of the heating assembly and / or the fan assembly is adjusted.
[0112] It should be noted that the above examples are only used to understand the present application and do not limit the control method of the bath heater of the present application, and more simple transformations based on this technical concept are within the protection scope of the present application.
[0113] The above merely describes some embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation, direct / indirect application in other related technical fields, or the like, which is made based on the technical concept of the present application and the content of the specification and drawings, is included in the patent protection scope of the present application.
Claims
1. A bathroom heater, characterized in that, The bathroom heater includes: a housing assembly, a fan assembly, a heating assembly, and a temperature sensor. The housing assembly is provided with an air duct and an air outlet. The fan assembly is connected to the air outlet through the air duct. The heating assembly is located inside the air duct. The temperature sensor is located inside the air duct or at the air outlet. The temperature sensor is used to sense temperature changes and adjust its size according to the temperature changes. An air vent is provided on the temperature sensor or between the temperature sensor and the side wall of the air duct. The area of the air vent changes with the size of the temperature sensor.
2. The bathroom heater as described in claim 1, characterized in that, When the temperature sensor is located inside the air duct, the temperature sensor is positioned between the heating component and the air outlet.
3. The bathroom heater as described in claim 1, characterized in that, The temperature sensor is a shape memory alloy or a bimetallic sheet.
4. The bathroom heater as described in claim 1, characterized in that, The temperature sensor is in the shape of a louver, and the louver blades deform according to temperature changes to adjust the area of the vent.
5. The bathroom heater as described in any one of claims 1 to 4, characterized in that, The bathroom heater also includes a detection component, which is disposed within the air duct. The detection component is used to detect the air pressure in the air duct and / or the area of the air inlet.
6. The bathroom heater as described in claim 5, characterized in that, The detection component includes a wind pressure detection component, which is disposed on the air duct between the outlet of the fan component and the heating component; The wind pressure detection component is used to detect the wind pressure inside the air duct.
7. The bathroom heater as described in claim 5, characterized in that, The detection components include a vent area detection component; The vent area detection component is used to detect the area of the vent.
8. The bathroom heater as described in claim 7, characterized in that, The vent area detection component includes a camera component, which is used to acquire images of the vent to obtain the area of the vent based on the images.
9. The bathroom heater as described in claim 8, characterized in that, The camera component is also used to acquire images of the temperature sensor to determine whether the temperature sensor is faulty based on the images.
10. The bathroom heater as described in claim 7, characterized in that, The vent area detection component includes a sensor component, which is used to detect the displacement of the temperature sensing element in order to obtain the vent area based on the displacement.
11. A method for controlling a bathroom heater, characterized in that, The bathroom heater includes: a housing assembly, a fan assembly, a heating assembly, a temperature sensor, and a detection assembly. The housing assembly is provided with an air duct and an air outlet, and the temperature sensor is provided with a vent on the side wall of the air duct or between the temperature sensor and the side wall of the air duct. The control method includes: After the bathroom heater starts its heating function, the fan assembly and the heating assembly are turned on. Obtain the detection information of the detection component; The operating status of the fan assembly and / or the heating assembly is automatically adjusted based on the detection information.
12. The method as described in claim 11, characterized in that, The detection components include a wind pressure detection component; The step of automatically adjusting the operating state of the fan assembly and / or the heating assembly based on the detection information includes: The wind pressure inside the duct detected by the wind pressure detection component is obtained based on the detection information. The operating status of the fan assembly and / or the heating assembly is automatically adjusted according to the wind pressure.
13. The method as described in claim 12, characterized in that, The step of automatically adjusting the operating state of the fan assembly and / or the heating assembly according to the wind pressure includes: When the wind pressure is greater than or equal to a preset wind pressure threshold, the operating level of the fan assembly is increased and / or the heating power of the heating assembly is reduced.
14. The method as described in claim 13, characterized in that, After the step of increasing the operating level of the fan assembly and / or decreasing the heating power of the heating assembly when the wind pressure is greater than or equal to a preset wind pressure threshold, the method further includes: When the working position is the target position and the heating power is the target power, obtain the first duration during which the wind pressure is greater than or equal to the preset wind pressure threshold. When the first duration equals the preset duration, the heating component is turned off or the bathroom heater is controlled to stop working.
15. The method as described in claim 12, characterized in that, The bathroom heater also includes a temperature sensor, which is used to detect the air temperature at the air outlet. The step of automatically adjusting the operating state of the fan assembly and / or the heating assembly according to the wind pressure includes: When the outlet air temperature is lower than the set temperature and the air pressure is lower than the preset air pressure threshold, the heating power of the heating component is increased or the operating speed of the fan component is reduced. When the outlet air temperature is lower than the set temperature and the air pressure is greater than or equal to the preset air pressure threshold, the heating power of the heating component is kept constant and the operating speed of the fan component is reduced.
16. The method as described in claim 11, characterized in that, The detection components include a vent area detection component; The step of automatically adjusting the operating state of the fan assembly and / or the heating assembly based on the detection information includes: The area of the vent is obtained by the vent area detection component based on the detection information. The operating status of the fan assembly and / or the heating assembly is automatically adjusted according to the area.
17. The method as described in claim 16, characterized in that, The step of automatically adjusting the operating state of the fan assembly and / or the heating assembly according to the area includes: When the area is less than or equal to a first preset range, the operating level of the fan assembly is increased and / or the heating power of the heating assembly is decreased.
18. The method as described in claim 17, characterized in that, After the step of increasing the operating level of the fan assembly and / or decreasing the heating power of the heating assembly when the area is less than or equal to a first preset range, the method further includes: When the working level is the target level and the heating power is the target power, a second duration is obtained in which the area is less than or equal to the first preset range; When the second duration equals the preset duration, the heating component is turned off or the bathroom heater is controlled to stop working.
19. The method as described in claim 16, characterized in that, The bathroom heater also includes a temperature sensor, which is used to detect the air temperature at the air outlet. The step of automatically adjusting the operating state of the fan assembly and / or the heating assembly according to the area includes: When the outlet air temperature is lower than the set temperature and the area is greater than the second preset range, the heating power of the heating component is increased or the operating level of the fan component is reduced. When the outlet air temperature is less than the set temperature and the area is less than or equal to the first preset range, the heating power of the heating component is kept constant and the operating level of the fan component is reduced, wherein the first preset range is less than the second preset range.
20. The method as described in claim 11, characterized in that, The bathroom heater also includes a temperature sensor, which is used to detect the air temperature at the air outlet. After the step of obtaining the detection information of the detection component, the method further includes: When the outlet air temperature is greater than or equal to the set temperature, the step of automatically adjusting the working state of the fan assembly and / or the heating assembly based on the detection information is executed.
21. The method as described in claim 11, characterized in that, After the step of controlling the start-up of the fan assembly, the method further includes: Obtain the air pressure inside the air duct and the area of the air inlet; When the wind pressure is greater than or equal to the abnormal value or the area of the vent is less than the preset value, the working speed of the fan assembly is controlled to operate at the target working speed. When the running time is equal to the target time and the wind pressure is greater than or equal to the abnormal value, or when the running time is equal to the target time and the area of the vent is less than the preset value, the heating component is not turned on, an abnormal prompt is generated and the bathroom heater is turned off. When the running time is equal to the target time and the wind pressure is less than the abnormal value, or when the running time is equal to the target time and the area of the vent is greater than or equal to a preset value, the step of controlling the heating component to turn on is executed.