Electric heater, electric heater control method and device

Abstract

The present invention discloses an electric heater, a control method and a device for an electric heater, wherein the control method of the electric heater can obtain whether there is a safety hazard when the electric heater is in use by obtaining the current distance between the electric heater and a target after the heating load of the electric heater is started; when the current distance is less than a preset distance threshold, it is considered that there is a safety hazard when the electric heater is in use, and at this time it is necessary to control the heating load of the electric heater to stop heating and control the heat dissipation load of the electric heater to dissipate heat, thereby dissipating the heat generated by the heating load of the electric heater as soon as possible, and further, in the process of heat dissipation of the heat dissipation load, the actual temperature of the air outlet is obtained, and when the actual temperature is less than the preset temperature threshold, it is determined that the initial heat dissipation is completed, that is, it is determined when the initial heat dissipation of the heat dissipation load is completed, thereby avoiding the heat dissipation load from working continuously and preventing the electric heater from excessively dissipating heat, which in turn causes the user's perceived temperature to drop and the user's experience to be poor.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical equipment, and in particular to an electric heater, and a control method and device for the electric heater. Background Art

[0002] With the rapid development of the economy, heating products have provided a comfortable space for human life, such as electric heaters, which can make cold environments warm. However, electric heaters are heating appliances and generate high temperatures. When the electric heater is close to the user, the heat generated by the heater can cause harm to users with limited mobility, such as the elderly and infants, because they cannot change the distance between the electric heater and the user. Furthermore, if the electric heater falls on the user, the user cannot lift the heater up, and the continued heating of the electric heater can cause continuous damage to the user, even causing damage to the user's life and property. Summary of the Invention

[0003] In view of this, embodiments of the present invention provide an electric heater, a control method and a device for the electric heater, so as to solve the potential safety hazards when a user with limited mobility uses the electric heater.

[0004] According to the first aspect, an embodiment of the present invention provides a control method for an electric heater, comprising the following steps: after the heating load of the electric heater is started, obtaining the current distance between the electric heater and the target; when the current distance is less than a preset distance threshold, controlling the heating load of the electric heater to stop heating and controlling the heat dissipation load of the electric heater to perform preliminary heat dissipation; when the heat dissipation load performs preliminary heat dissipation, obtaining the actual temperature of the air outlet; when the actual temperature is less than the preset temperature threshold, determining that the preliminary heat dissipation is completed.

[0005] Specifically, controlling the heat dissipation load of the electric heater to perform preliminary heat dissipation includes: obtaining the state parameters of the heat dissipation load; judging whether the heat dissipation load is in a working state according to the state parameters; when the heat dissipation load is in the working state, controlling the heat dissipation load to continue working to perform the preliminary heat dissipation; when the heat dissipation load is not in the working state, starting the heat dissipation load to perform the preliminary heat dissipation.

[0006] Specifically, after determining that the initial heat dissipation is completed, the control method of the electric heater also includes: obtaining the continuous working time of the heating load; when the continuous working time is greater than a preset time threshold, controlling the heat dissipation load to perform supplementary heat dissipation; when the continuous working time is less than or equal to the time threshold, controlling the heat dissipation load to stop heat dissipation.

[0007] Specifically, controlling the heat dissipation load to perform supplementary heat dissipation includes: obtaining an operating parameter used to reflect the heat storage amount of the heating load; determining a first duration for the heat dissipation load to perform the supplementary heat dissipation based on the operating parameter; and controlling the heat dissipation load to continue working for the first duration to perform the supplementary heat dissipation.

[0008] When the working parameters used to reflect the heat storage of the heating load are the continuous working time of the heating load and the gear position of the heating load during heating, determining the first time period for the heat dissipation load to perform the supplementary heat dissipation according to the working parameters includes: subtracting the time threshold from the continuous heating time to obtain the heat storage time; calculating the product of the heat storage time, the gear position and a preset first constant to obtain the first time period; or; when the working parameters used to reflect the heat storage of the heating load are the continuous working time of the heating load and the power of the heating load during heating, determining the first time period for the heat dissipation load to perform the supplementary heat dissipation according to the working parameters includes: subtracting the time threshold from the continuous heating time to obtain the heat storage time; calculating the product of the heat storage time, the power and a preset second constant to obtain the first time period.

[0009] Specifically, the working parameter used to reflect the heat storage amount of the heating load is the gear position of the heating load during heating; determining the first duration for the heat dissipation load to perform the supplementary heat dissipation based on the working parameter includes: multiplying the gear position by a preset constant to obtain the first duration for the heat dissipation load to perform the supplementary heat dissipation.

[0010] Specifically, obtaining the current distance between the electric heater and the target includes: obtaining a voltage signal in the electric heater; and determining the current distance between the electric heater and the target according to the voltage signal.

[0011] According to the second aspect, an embodiment of the present invention also provides a control device for an electric heater, comprising a first acquisition module, a heat dissipation module and a second acquisition module; after the heating load of the electric heater is started, the first acquisition module is used to obtain the current distance between the electric heater and the target; when the current distance is less than a preset distance threshold, the heat dissipation module is used to control the heating load of the electric heater to stop heating and control the heat dissipation load of the electric heater to perform preliminary heat dissipation; the second acquisition module is used to obtain the actual temperature of the air outlet; when the actual temperature is less than the preset temperature threshold, the heat dissipation module is used to determine that the preliminary heat dissipation is ended.

[0012] According to the third aspect, an embodiment of the present invention also provides an electric heater, which includes a temperature sensor and a controller. The temperature sensor is arranged at the air outlet of the electric heater and is used to obtain the actual temperature of the air outlet; the temperature sensor and the controller are communicatively connected to each other, and computer instructions are stored in the controller. The controller executes the computer instructions to execute the control method of the electric heater described in the first aspect.

[0013] Specifically, the electric heater further includes a voltage acquisition module for acquiring the voltage of the heating load during heating; the voltage acquisition module is in communication connection with the controller.

[0014] According to a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable the computer to execute the control method of the electric heater described in the first aspect.

[0015] The electric heater, electric heater control method and device provided by the embodiments of the present invention can obtain whether there are safety hazards when the electric heater is in use by obtaining the current distance between the electric heater and the target after the heating load of the electric heater is started; when the current distance is less than a preset distance threshold, it is considered that there are safety hazards when the electric heater is in use, and at this time it is necessary to control the heating load of the electric heater to stop heating and control the heat dissipation load of the electric heater to dissipate heat, thereby dissipating the heat generated by the heating load of the electric heater as soon as possible, and further, in the process of heat dissipation of the heat dissipation load, the actual temperature of the air outlet is obtained, and when the actual temperature is less than the preset temperature threshold, it is determined that the preliminary heat dissipation is completed, that is, it is determined when the preliminary heat dissipation of the heat dissipation load is completed, thereby avoiding the heat dissipation load from working continuously and preventing the electric heater from excessively dissipating heat, which in turn causes the user's perceived temperature to drop and the user experience to be poor.

[0016] Furthermore, by judging the heating time and gear position, the heat dissipation time can be extended to perform supplementary heat dissipation, thereby avoiding the problem of the temperature of the electric heater continuing to rise after the initial heat dissipation due to the heat storage of the heating load, thereby posing a safety hazard. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The features and advantages of the present invention will be more clearly understood by referring to the accompanying drawings, which are schematic and should not be construed as limiting the present invention in any way. In the accompanying drawings:

[0018] Figure 1 Schematic diagram of the flow of the electric heater control method in Example 1 of the present invention;

[0019] Figure 2 This is a flow chart of an example of an electric heater control method in embodiment 1 of the present invention;

[0020] Figure 3 Schematic diagram of the structure of the electric heater control device in Example 2 of the present invention;

[0021] Figure 4 This is a schematic structural diagram of the electric heater in Example 3 of the present invention. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of the present invention.

[0023] It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0024] Example 1

[0025] Embodiment 1 of the present invention provides a method for controlling an electric heater. Figure 1 FIG. 1 is a flow chart of the electric heater control method in Example 1 of the present invention, as shown in FIG. Figure 1 As shown, the electric heater control method of embodiment 1 of the present invention includes the following steps:

[0026] S101: After the heating load of the electric heater is started, a current distance between the electric heater and a target is obtained.

[0027] The electric heater is provided with a heating load and a heat dissipation load. The function of the heating load is to generate heat, and the function of the heat dissipation load is to dissipate the heat generated by the heating load to the space to be heated. For example, the heating load can be a heating coil, and the heat dissipation load can be a fan.

[0028] In the first embodiment of the present invention, the target can be understood as a living being that uses electricity for heating, such as a person using an electric heater.

[0029] As a first specific implementation, a distance sensor, such as an infrared distance sensor, may be provided on the electric heater to obtain the current distance between the electric heater and the target through the infrared distance sensor.

[0030] As a second specific implementation method, the following method can be used to obtain the current distance between the electric heater and the target: control the electric heater to generate a real-time electromagnetic field; based on the real-time electromagnetic field, obtain the real-time voltage value corresponding to the real-time capacitance value formed by the electric heater and the target; based on the real-time voltage value, judge the real-time distance between the target and the electric heater.

[0031] This is because when the electric heater generates a real-time electromagnetic field, since the target is a conductor, interaction will occur between the target and the electric heater. Specifically, when the target approaches the electric heater, a real-time capacitance value will be formed between the electric heater and the target, so that the corresponding real-time voltage value can be obtained based on the real-time capacitance value.

[0032] The above-mentioned second specific implementation method controls the electric heater to generate a real-time electromagnetic field, and based on the real-time electromagnetic field, obtains the real-time voltage value corresponding to the real-time capacitance value formed by the electric heater and the target, and then judges the real-time distance between the target and the electric heater according to the real-time voltage value. The interaction between the conductor characteristics of the target and the real-time electromagnetic field generated by the electric heater is used to judge whether the target is close to the electric heater. Compared with the first specific implementation method, the second specific implementation method can comprehensively and multi-angle detect whether the target is close to the electric heater, thereby improving the detection accuracy.

[0033] Specifically, controlling the electric heater to generate a real-time electromagnetic field includes: determining a real-time transmission signal corresponding to a transmission frequency; and controlling the electric heater to generate the real-time electromagnetic field corresponding to the real-time transmission signal.

[0034] After determining the transmission frequency, the signal can be transmitted according to the determined transmission frequency, and the transmitted signal is a real-time transmission signal. The transmission frequency can be a fixed frequency or a variable frequency. When the transmission frequency is a variable frequency, it is necessary to set a sampling period and a number of samples. The transmission frequency is less than the ratio of 1 to a first value, and the first value is the ratio of the number of samples to the sampling period. For example, when f represents the variable transmission frequency, N represents the number of samples, and T represents the sampling period, the first value is N / T, and f<1 / (N / T).

[0035] Specifically, obtaining the real-time voltage value corresponding to the real-time capacitance value formed by the electric heater and the target includes: determining the corresponding real-time capacitance value and the voltage value corresponding to the real-time capacitance value based on multiple capacitance changes formed by the electric heater and the target; wherein the corresponding real-time capacitance value is the value obtained by adding the calibrated capacitance value and each capacitance change, and the calibrated capacitance value is the capacitance value formed by the electric heater and the living body when the distance between the living body and the electric heater is greater than or equal to the first calibrated distance; each voltage value is the ratio of the current value corresponding to the real-time transmission signal to the first value, and the first value is the product of the corresponding real-time capacitance value and the transmission frequency; the real-time voltage value is obtained according to the preset sampling period, the preset sampling number and the corresponding voltage value.

[0036] In embodiment 1 of the present invention, when the target is not close to the electric heater, a calibrated voltage value is formed between the target and the electric heater. When the target gradually approaches the electric heater, a corresponding capacitance change will be generated between the target and the electric heater based on the calibrated voltage value. Therefore, after multiple capacitance changes are formed between the electric heater and the target, the corresponding real-time capacitance value is the value obtained by adding the calibrated capacitance value and each capacitance change. For example, C0 represents the calibrated voltage value, ΔC represents the capacitance change, and the real-time capacitance value C=C0+ΔC.

[0037] Among them, the calibrated voltage value is a pre-set voltage value, and the pre-set voltage value can be measured in advance through experiments. Specifically, in the experiment, the voltage value formed between the living body and the electric heater when the distance between the living body and the electric heater is greater than or equal to the first calibration distance can be determined as the calibrated voltage value.

[0038] In embodiment 1 of the present invention, the transmission signal includes a current value, and each real-time capacitance value corresponds to a voltage value. Therefore, each voltage value is the ratio of the current value corresponding to the real-time transmission signal to a first value, and the first value is the product of the corresponding real-time capacitance value and the transmission frequency. For example, U represents the voltage value, C represents the real-time capacitance value, I represents the current value corresponding to the real-time transmission signal, and f represents the transmission frequency. Then the first value = C×f, and U = I / (C×f).

[0039] In embodiment 1 of the present invention, voltage values ​​corresponding to a preset number of samples can be sampled according to a preset sampling period, and the voltage values ​​of the preset number of samples can be averaged to obtain a real-time voltage value. For example, the preset sampling period is T, and the preset number of samples is N, then N voltage values ​​are sampled, and the real-time voltage value can be obtained by averaging the N voltage values.

[0040] S102: When the current distance is less than a preset distance threshold, the heating load of the electric heater is controlled to stop heating and the heat dissipation load of the electric heater is controlled to perform preliminary heat dissipation.

[0041] Among them, the distance threshold can be considered as the safe use distance of the electric heater, that is, when the distance between the electric heater and the target is greater than or equal to the distance threshold, there is no safety hazard when the electric heater is used; when the distance between the electric heater and the target is less than the distance threshold, there is a safety hazard when the electric heater is used.

[0042] When the current distance is less than the preset distance threshold, that is, there is a safety hazard when the electric heater is in use, it is necessary to control the heating load of the electric heater to stop heating and control the heat dissipation load of the electric heater to dissipate heat; thereby, the heat generated by the heating load of the electric heater can be dissipated as soon as possible to prevent the heat of the electric heater from causing harm to the user when there is a safety hazard during use.

[0043] S103: When the heat dissipation load performs preliminary heat dissipation, obtaining the actual temperature of the air outlet.

[0044] Specifically, a temperature sensor may be provided at the air outlet of the electric heater, and the actual temperature of the air outlet may be obtained through the temperature sensor.

[0045] S104: When the actual temperature is lower than a preset temperature threshold, it is determined that the preliminary heat dissipation is completed.

[0046] The temperature threshold can be considered to be a temperature at which a user does not feel a burning sensation when touching the heater at close range. When the heating load of the electric heater stops heating and the heat dissipation load of the electric heater begins to dissipate heat, the temperature at the air outlet of the electric heater is the highest temperature in the electric heater. When the highest temperature in the electric heater does not cause a burning sensation when touching the heater at close range, the initial heat dissipation of the electric heater can be considered to have ended.

[0047] Furthermore, after determining that the initial heat dissipation is completed, it also includes: obtaining the continuous working time of the heating load; when the continuous working time is greater than a preset time threshold, controlling the heat dissipation load to perform supplementary heat dissipation; when the continuous working time is less than or equal to the time threshold, controlling the heat dissipation load to stop heat dissipation.

[0048] This is because, when the continuous working time of the heating load is greater than the time threshold, it can be considered that the heating load has entered the heat storage state. After the initial heat dissipation is completed, the heat storage in the heating load will cause the temperature of the heating load to continue to rise, which will cause the electric heater to still have safety hazards during use, so additional heat dissipation is required. When the continuous working time of the heating load is less than or equal to the time threshold, at this time, the heating load has not reached the heat storage state, so there is no need for additional heat dissipation. At this time, it is necessary to control the heat dissipation load to stop heat dissipation to prevent the heat dissipation from continuing to be dissipated through the radiator after the initial heat dissipation of the electric heater is completed, which will cause the temperature of the radiator to continue to drop, thereby causing the user's perceived temperature to drop, resulting in a poor user experience.

[0049] For example, the duration threshold may be Zmin, that is, when the continuous heating duration of the heating load is greater than Zmin, the heating load starts to store heat.

[0050] Specifically, controlling the heat dissipation load to perform supplementary heat dissipation can be accomplished by: obtaining an operating parameter reflecting the heat storage capacity of the heating load; determining a first duration for the heat dissipation load to perform supplementary heat dissipation based on the operating parameter; and controlling the heat dissipation load to continue operating for the first duration to perform supplementary heat dissipation. This allows the duration of supplementary heat dissipation to be determined, ensuring that the supplementary heat dissipation occurs within the specified duration. This also prevents excessive heat dissipation from the electric heater, which could result in a drop in perceived temperature and a poor user experience.

[0051] Specifically, the operating parameters used to reflect the heat storage amount of the heating load include the continuous working time of the heating load and any one of the following: the gear position of the heating load during heating, and the power of the heating load during heating.

[0052] When the operating parameters used to reflect the amount of heat stored by the heating load are the continuous operating time of the heating load and the gear position of the heating load during heating, determining the first time period for the heat dissipation load to perform the supplementary heat dissipation based on the operating parameters includes: subtracting the time threshold from the continuous heating time period to obtain a heat storage time period; and calculating the product of the heat storage time period, the gear position, and a preset first constant to obtain the first time period.

[0053] When the operating parameters used to reflect the heat storage capacity of the heating load are the continuous operating time of the heating load and the power of the heating load during heating, determining the first duration for the supplementary heat dissipation of the heat dissipation load based on the operating parameters includes: subtracting the duration threshold from the continuous heating time to obtain the heat storage time; and calculating the product of the heat storage time, the power, and a preset second constant to obtain the first duration. This is because different heating levels within the same time period have different power outputs, resulting in different heat storage capacities. This can prevent excessively long heat dissipation times at low levels and excessively short heat dissipation times at high levels.

[0054] For example, if the current working gear is heating gear 1 and the heating time lasts for more than Z minutes, the countdown will be automatically set for a minute to supplement the heat dissipation; when it is set to heating gear 2 and the heating time lasts for more than Z minutes, the countdown will be automatically set for 2 minutes to supplement the heat dissipation; when it is set to heating gear 2 and the heating time lasts for more than Z minutes, the countdown will be automatically set for 3 minutes to supplement the heat dissipation... and so on.

[0055] Figure 2FIG. 1 is a flow chart of an example of an electric heater control method in embodiment 1 of the present invention. Figure 2 As shown, after the heating load of the electric heater starts working, it is determined whether the user is close to the electric heater. When the user is close to the electric heater, the heating load is stopped and the heat dissipation load is used for heat dissipation; when the temperature of the air outlet of the electric heater reaches A℃, it is determined whether the continuous heating time of the heating load is greater than or equal to Zmin. When the continuous heating time of the heating load is less than Zmin, the heat dissipation load is controlled to end the heat dissipation work; when the continuous heating time of the heating load is greater than or equal to Zmin, the time for the heat dissipation load to supplement the heat dissipation is determined according to the gear position of the heating load during heating. For example, when the heating gear is gear 1, a min is used for supplementary heat dissipation; when the heating gear is gear 2, 2a min is used for supplementary heat dissipation; when the heating gear is gear 3, 3a min is used for supplementary heat dissipation. When the supplementary heat dissipation ends, the heat dissipation load is controlled to end the heat dissipation work.

[0056] It can be seen that the control method of the electric heater provided in Example 1 of the present invention can obtain whether there are safety hazards when the electric heater is in use by obtaining the current distance between the electric heater and the target after the heating load of the electric heater is started; when the current distance is less than the preset distance threshold, it is considered that there are safety hazards when the electric heater is in use. At this time, it is necessary to control the heating load of the electric heater to stop heating and control the heat dissipation load of the electric heater to dissipate heat, thereby dissipating the heat generated by the heating load of the electric heater as soon as possible. Furthermore, in the process of heat dissipation of the heat dissipation load, the actual temperature of the air outlet is obtained, and when the actual temperature is less than the preset temperature threshold, it is determined that the preliminary heat dissipation is completed, that is, it is determined when the preliminary heat dissipation of the heat dissipation load is completed, thereby avoiding the heat dissipation load from working continuously and preventing the electric heater from excessively dissipating heat, which in turn causes the user's perceived temperature to drop and the user experience to be poor.

[0057] Furthermore, by judging the heating time and gear position, the heat dissipation time can be extended to perform supplementary heat dissipation, thereby avoiding the problem of the temperature of the electric heater continuing to rise after the initial heat dissipation due to the heat storage of the heating load, thereby posing a safety hazard.

[0058] Example 2

[0059] Corresponding to the first embodiment of the present invention, the second embodiment of the present invention provides a control device for an electric heater. Figure 3 FIG. 1 is a structural diagram of an electric heater control device in Example 2 of the present invention, as shown in FIG. Figure 3 As shown, the electric heater control device according to the second embodiment of the present invention includes a first acquisition module 10 , a heat dissipation module 20 , and a second acquisition module 30 .

[0060] After the heating load of the electric heater is started, the first acquisition module 10 is used to obtain the current distance between the electric heater and the target;

[0061] a heat dissipation module 20, configured to control the heating load of the electric heater to stop heating and control the heat dissipation load of the electric heater to perform preliminary heat dissipation when the current distance is less than a preset distance threshold;

[0062] When the heat dissipation load is performing preliminary heat dissipation, the second acquisition module 30 is used to obtain the actual temperature of the air outlet;

[0063] When the actual temperature is lower than a preset temperature threshold, the heat dissipation module 20 is configured to determine that the preliminary heat dissipation is finished.

[0064] Among them, the heat dissipation module 20 is specifically used to: obtain the state parameters of the heat dissipation load; determine whether the heat dissipation load is in a working state according to the state parameters; when the heat dissipation load is in the working state, control the heat dissipation load to continue working to perform the preliminary heat dissipation; when the heat dissipation load is not in the working state, start the heat dissipation load to perform the preliminary heat dissipation.

[0065] After determining that the initial heat dissipation is completed, the heat dissipation module 20 is also used to: obtain the continuous working time of the heating load; when the continuous working time is greater than a preset time threshold, control the heat dissipation load to perform supplementary heat dissipation; when the continuous working time is less than or equal to the time threshold, control the heat dissipation load to stop heat dissipation.

[0066] The heat dissipation module 20 is specifically configured to: determine a first duration for the heat dissipation load to perform the supplementary heat dissipation according to the heat storage amount of the heating load; and control the heat dissipation load to continue working for the first duration for the supplementary heat dissipation.

[0067] The heat dissipation module 20 is more specifically configured to: obtain a gear position of the heating load during heating; and obtain the first duration of the supplementary heat dissipation of the heat dissipation load by multiplying the gear position by a preset constant.

[0068] The first acquisition module 10 is specifically configured to: acquire a voltage signal from the electric heater; and determine a current distance between the electric heater and a target according to the voltage signal.

[0069] The specific details of the above electric heater control device can be referred to Figures 1 to 2 The corresponding descriptions and effects in the embodiments shown can be understood and will not be repeated here.

[0070] Example 3

[0071] The embodiment of the present invention also provides an electric heater, such as Figure 4As shown, the electric heater includes a temperature sensor 40 and a controller. The temperature sensor 40 is arranged at the air outlet of the electric heater to obtain the actual temperature of the air outlet; the temperature sensor 40 and the controller are connected to each other for communication.

[0072] like Figure 4 As shown, the controller includes a processor 41 and a memory 42 , wherein the processor 41 and the memory 42 may be connected via a bus or other means.

[0073] The processor 41 may be a central processing unit (CPU). The processor 41 may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or a combination of the above chips.

[0074] The memory 42 is a non-transitory computer-readable storage medium that can be used to store non-transitory software programs, non-transitory computer executable programs and modules, such as the program instructions / modules corresponding to the control method of the electric heater in the embodiment of the present invention (for example, Figure 3 The processor 41 executes various functional applications and data processing of the processor by running the non-transient software programs, instructions, and modules stored in the memory 42, thereby implementing the control method of the electric heater in the above method embodiment.

[0075] The memory 42 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and application programs required for at least one function; the data storage area may store data created by the processor 41, etc. In addition, the memory 42 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some embodiments, the memory 42 may optionally include a memory remotely located relative to the processor 41, and these remote memories may be connected to the processor 41 via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0076] The one or more modules are stored in the memory 42 and when executed by the processor 41, perform the following steps: Figures 1 to 3The control method of the electric heater in the illustrated embodiment.

[0077] The specific details of the above electric heaters can be found in Figures 1 to 4 The corresponding descriptions and effects in the embodiments shown can be understood and will not be repeated here.

[0078] Those skilled in the art will appreciate that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program. The program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods. The storage medium can be a magnetic disk, an optical disk, a read-only memory (ROM), a random access memory (RAM), a flash memory, a hard disk drive (HDD), or a solid-state drive (SSD). The storage medium can also include a combination of the above-mentioned types of memory.

[0079] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention. Such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A method for controlling an electric heater, characterized in that: include: After the heating load of the electric heater is started, the current distance between the electric heater and the target is obtained; When the current distance is less than a preset distance threshold, controlling the heating load of the electric heater to stop heating and controlling the heat dissipation load of the electric heater to perform preliminary heat dissipation; When the heat dissipation load performs preliminary heat dissipation, obtaining the actual temperature of the air outlet; When the actual temperature is lower than a preset temperature threshold, it is determined that the preliminary heat dissipation is completed; After determining that the preliminary heat dissipation is completed, the method further includes: Obtaining the continuous working time of the heating load; When the continuous working time is longer than a preset time threshold, controlling the heat dissipation load to perform supplementary heat dissipation; When the continuous working time is less than or equal to the time threshold, controlling the heat dissipation load to stop heat dissipation; The controlling the heat dissipation load to perform supplementary heat dissipation includes: Obtaining an operating parameter for reflecting the heat storage amount of the heating load; determining a first duration for the heat dissipation load to perform the supplementary heat dissipation according to the operating parameters; The heat dissipation load is controlled to continue operating for the first time period to perform the supplementary heat dissipation.

2. The method according to claim 1, characterized in that The controlling the heat dissipation load of the electric heater to perform preliminary heat dissipation includes: Obtaining state parameters of the heat dissipation load; determining whether the heat dissipation load is in a working state according to the state parameter; When the heat dissipation load is in the working state, controlling the heat dissipation load to continue working to perform the preliminary heat dissipation; When the heat dissipation load is not in the working state, the heat dissipation load is started to perform the preliminary heat dissipation.

3. The method according to claim 1, wherein: When the operating parameters used to reflect the amount of heat stored by the heating load are the continuous working time of the heating load and the gear position of the heating load during heating, determining the first time duration for the heat dissipation load to perform the supplementary heat dissipation according to the operating parameters includes: The heat storage time is obtained by subtracting the time threshold from the continuous heating time; Calculating the product of the heat storage time, the gear position, and a preset first constant to obtain the first time; or; When the operating parameters used to reflect the heat storage amount of the heating load are the continuous working time of the heating load and the power of the heating load during heating, determining the first time duration for the heat dissipation load to perform the supplementary heat dissipation according to the operating parameters includes: The heat storage time is obtained by subtracting the time threshold from the continuous heating time; The product of the heat storage time, the power and a preset second constant is calculated to obtain the first time.

4. The method according to claim 1, wherein The obtaining of the current distance between the electric heater and the target comprises: obtaining a voltage signal from the electric heater; A current distance between the electric heater and a target is determined according to the voltage signal.

5. A control device for an electric heater, characterized in that: include: a first acquisition module, after the heating load of the electric heater is started, the first acquisition module being used to acquire a current distance between the electric heater and the target; a heat dissipation module, configured to control the heating load of the electric heater to stop heating and control the heat dissipation load of the electric heater to perform preliminary heat dissipation when the current distance is less than a preset distance threshold; When the heat dissipation load performs preliminary heat dissipation, the second acquisition module is used to obtain the actual temperature of the air outlet; When the actual temperature is lower than a preset temperature threshold, the heat dissipation module is configured to determine that the preliminary heat dissipation is completed; After determining that the initial heat dissipation is completed, the heat dissipation module is further configured to: obtain a continuous working time of the heating load; when the continuous working time is greater than a preset time threshold, control the heat dissipation load to perform supplementary heat dissipation; when the continuous working time is less than or equal to the time threshold, control the heat dissipation load to stop heat dissipation; The heat dissipation module is specifically used to: obtain working parameters used to reflect the heat storage of the heating load; determine a first duration for the heat dissipation load to perform the supplementary heat dissipation according to the working parameters; and control the heat dissipation load to continue working for the first duration to perform the supplementary heat dissipation.

6. An electric heater, characterized in that: include: A temperature sensor is provided at the air outlet of the electric heater and is used to obtain the actual temperature of the air outlet; The temperature sensor and the controller are communicatively connected to each other, the controller stores computer instructions, and the controller executes the control method of the electric heater according to any one of claims 1 to 4 by executing the computer instructions.

7. The electric heater according to claim 6, characterized in that Also includes: A voltage acquisition module is used to acquire the voltage of the heating load during heating; the voltage acquisition module is in communication with the controller.

8. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable the computer to execute the control method for the electric heater according to any one of claims 1 to 4.

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