Electric heater temperature control method and electric heater

Abstract

The invention discloses an electric heater temperature control method and an electric heater, and the method comprises the steps: if a user instruction containing a target temperature is received, heating is carried out at a first preset power; the current environment temperature is obtained, whether the current environment temperature is equal to the first preset temperature or not is judged, and the first preset temperature is larger than the target temperature; if the current environment temperature is equal to the first preset temperature, heating lasts for first target time at second preset power, and the second preset power is smaller than the first preset power; the current environment temperature is obtained again, and whether the current environment temperature obtained again is equal to the target temperature or not is judged; and if the current environment temperature obtained again is equal to the target temperature, heating is conducted at the preset variable power. According to the method, the user comfort can be improved, and the power consumption of the electric heater is reduced.

Description

Technical Field

[0001] This invention relates to the field of electric heater technology, and in particular to an electric heater temperature control method and an electric heater. Background Technology

[0002] An electric heater is a heating device that converts electrical energy into heat energy, transferring heat through radiation, convection, or contact. It is suitable for indoor spaces such as homes and offices. Most electric heaters on the market can heat to a preset temperature, bringing the room to a comfortable temperature. However, due to differences in heating methods and system temperature control logic, the process, human sensation, and time required to reach the same preset temperature will vary. Currently, most electric heaters control the temperature by controlling the overall on / off state of the heating module, i.e., an on-off-on-off... working mode. While this method achieves temperature control, the temperature fluctuation range is large, leading to significant changes in indoor temperature, which can cause discomfort. Summary of the Invention

[0003] This invention provides a method for temperature control of an electric heater and an electric heater, aiming to solve the problem of discomfort caused by significant temperature fluctuations in existing electric heaters.

[0004] In a first aspect, embodiments of the present invention provide a method for temperature control of an electric heater, the method comprising: if a user instruction containing a target temperature is received, then operating the heater at a first preset power for heating; acquiring the current ambient temperature and determining whether the current ambient temperature is equal to the first preset temperature, wherein the first preset temperature is greater than the target temperature; if the current ambient temperature is equal to the first preset temperature, then operating the heater at a second preset power for heating for a first target time, wherein the second preset power is less than the first preset power; acquiring the current ambient temperature again and determining whether the acquired current ambient temperature is equal to the target temperature; if the acquired current ambient temperature is equal to the target temperature, then operating the heater at a preset variable power for heating.

[0005] Furthermore, the first preset power is the rated power of the electric heater.

[0006] Furthermore, after obtaining the current ambient temperature again and determining whether the obtained current ambient temperature is equal to the target temperature, the method further includes: if the obtained current ambient temperature is greater than the target temperature, then the obtained current ambient temperature is used as the first preset temperature, and heating is performed at the first preset power; then the method returns to the step of obtaining the current ambient temperature and determining whether the current ambient temperature is equal to the first preset temperature.

[0007] Furthermore, after receiving the user instruction containing the target temperature, the method further includes: obtaining the initial ambient temperature, and calculating the first preset temperature and the first target time based on the initial ambient temperature and a preset algorithm.

[0008] Further, the step of operating the heating function with a preset variable power includes: operating the heating function with a first power for a first preset time; operating the heating function with a second power for a second preset time, wherein the second power is greater than the first power and the second preset time is less than the first preset time; and returning to the step of operating the heating function with the first power for the first preset time.

[0009] Furthermore, the second power is twice the first power.

[0010] Secondly, the present invention also provides an electric heater for performing the method described in the first aspect above. The electric heater includes: a first heating module and a second heating module, both the first heating module and the second heating module including a first heating module and a second heating module, wherein the first heating module and the second heating module have the same heating power; and a temperature control circuit connected to the first heating module and the second heating module, the temperature control circuit being used to control the first heating module and the second heating module to generate heat.

[0011] Furthermore, the temperature control circuit includes a main control module, a power drive module, and a switching element. The power drive module is connected to the first heating module and the second heating module through the switching element, and the main control module is connected to the switching element. The power drive module generates a drive current, and the first heating module and the second heating module generate heat by means of the drive current. The main control module controls the switching element to open and close the circuit from the power module to the first heating module and the second heating module.

[0012] Furthermore, it also includes a temperature sensing element, which is connected to the main control module and is used to detect the ambient temperature.

[0013] Furthermore, both the first heating module and the second heating module are graphene evaporators.

[0014] This invention provides a temperature control method for an electric heater and an electric heater. The method includes: if a user command containing a target temperature is received, then heating is performed at a first preset power; the current ambient temperature is acquired, and it is determined whether the current ambient temperature is equal to the first preset temperature, wherein the first preset temperature is greater than the target temperature; if the current ambient temperature is equal to the first preset temperature, then heating is performed at a second preset power for a first target time, wherein the second preset power is less than the first preset power; the current ambient temperature is acquired again, and it is determined whether the acquired current ambient temperature is equal to the target temperature; if the acquired current ambient temperature is equal to the target temperature, then heating is performed at a preset variable power. This method, when applied to an electric heater, allows users to experience a more gentle temperature, providing greater comfort. It also allows for power adjustment based on actual human needs, resulting in a lower overall heating temperature and reduced power consumption. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 An electrical schematic diagram of an electric heater provided for an embodiment of the present invention; Figure 2 The diagrams showing the relationship between temperature and time, and the relationship between time and power, provided in this embodiment of the invention, illustrate the working principle of an electric heater. Figure 3 This is a flowchart illustrating the steps of the method provided in an embodiment of the present invention; Figure 4 This is a flowchart illustrating the steps of the method provided in an embodiment of the present invention; Figure 5 This is a flowchart illustrating the sub-steps of the method provided in an embodiment of the present invention; Figure 6 This is a flowchart illustrating the steps of the method provided in an embodiment of the present invention.

[0017] Figure label: 10. First heating module; 20. Second heating module; 1. First heating module; 2. Second heating module; 30. Temperature control circuit; 40. Temperature sensor. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0020] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0021] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0022] As used in this specification and the appended claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if [described condition or event] is detected" may be interpreted, depending on the context, as "once determined," "in response to determination," "once [described condition or event] is detected," or "in response to detection of [described condition or event]."

[0023] To facilitate understanding of the present invention, the electric heater provided in the embodiments of the present invention will first be described. (Refer to...) Figure 1 and Figure 2 This invention provides an electric heater, comprising: a first heating module 10 and a second heating module 20, wherein both the first heating module 10 and the second heating module 20 include a first heating module 1 and a second heating module 2, wherein the first heating module 1 and the second heating module 2 have the same heating power; and a temperature control circuit 30 connected to the first heating module 1 and the second heating module 2, the temperature control circuit 30 being used to control the first heating module 1 and the second heating module 2 to generate heat.

[0024] In specific implementation, the electric heater mainly includes a first heating module 10, a second heating module 20, and a temperature control circuit 30. The first heating module 10 and the second heating module 20 have identical structures and are both used for heating. Both the first heating module 10 and the second heating module 20 are composed of a first heating module 1 and a second heating module 2. The first heating module 1 and the second heating module 2 can be structures that enable heating, such as heating tubes or heating wires. The first heating module 1 and the second heating module 2 have the same heating power, and in actual operation, they generate the same amount of heat. The temperature control circuit 30 is the core of the heating control. It connects to the first heating module 1 and the second heating module 2 and controls their heating. The temperature control circuit 30 can control a single module to heat or control multiple modules to heat simultaneously.

[0025] Specifically, the first heating module 10 and the second heating module 20 are responsible for heating two different areas. For example, the first heating module 10 is responsible for heating the left area, and the second heating module 20 is responsible for heating the right area. Therefore, the heating mode of the electric heater can be divided into three main modes: L mode, R mode, and L+R mode. L mode indicates that the first heating module 10 is working, R mode indicates that the second heating module 20 is working, and L+R mode indicates that the first heating module 10 and the second heating module 20 work together.

[0026] The L mode can be divided into three sub-modes: L0, L1, and L2. In L0 mode, the first heating module 1 and the second heating module 2 under the first heating module 10 work together. In L1 mode, the first heating module 1 under the first heating module 10 works alone. In L2 mode, the second heating module 2 under the first heating module 10 works alone.

[0027] The R mode can be divided into three heating sub-modes: R0, R1, and R2. R0 mode indicates that the first heating module 1 and the second heating module 2 under the second heating module 20 work together; R1 mode indicates that the first heating module 1 under the second heating module 20 works alone; and R2 mode indicates that the second heating module 2 under the second heating module 20 works alone.

[0028] The L+R mode can be divided into: (1) L0+R0 mode; (2) L1+R1 mode, L1+R2 mode, L2+R1 mode, L2+R2 mode.

[0029] Since the heating power of the first heating module 1 and the second heating module 2 is the same, and assuming that the heating power of both the first heating module 1 and the second heating module 2 is P / 2, then the power distribution of each heating mode of the electric heater is as follows: In L mode and R mode alone, the heating power is P; in L1 mode, L2 mode, R1 mode and R2 mode, the heating power is P / 2. In L+R mode, the heating power of L0+R0 mode is 2P; the heating power of the other modes, L1+R1, L1+R2, L2+R1 and L2+R2, is P.

[0030] In practical applications, the temperature control circuit 30 can adjust different heating modes according to the above relationships to provide heating, thereby meeting the user's heating needs, such as... Figure 1 As shown, the first heating module 10 has two input terminals X4 and N2 and one output terminal X1. The two input terminals X4 and N2 are respectively connected to the inputs of the first heating module 1 and the second heating module 2 under the first heating module 10. The output terminal X1 is simultaneously connected to the outputs of the first heating module 1 and the second heating module 2. Terminals X4 and N2 can be turned on and off independently. The second heating module 20 also has two input terminals N1 and X3 and one output terminal X2. The two input terminals N1 and X3 are respectively connected to the inputs of the first heating module 1 and the second heating module 2 under the second heating module 20. The output terminal X2 is simultaneously connected to the outputs of the first heating module 1 and the second heating module 2. Terminals X3 and N1 can be turned on and off independently. The temperature control circuit 30 controls the on and off of X4, N2, X3, and N1 to allocate the above-mentioned heating modes to meet the user's heating needs.

[0031] In one embodiment, the temperature control circuit 30 includes a main control module, a power drive module, and a switching element. The power drive module is connected to the first heating module 1 and the second heating module 2 through the switching element, and the main control module is connected to the switching element. The power drive module generates a drive current, and the first heating module 1 and the second heating module 2 rely on the drive current for heating. The main control module controls the switching element to open and close the circuit from the power module to the first heating module 1 and the second heating module 2.

[0032] In a specific implementation, the temperature control circuit 30 may include a main control module, a power drive module, and switching elements. The power drive module is connected to the first heating module 1 and the second heating module 2 via the switching elements. Specifically, the power drive module generates the drive current required for the first heating module 1 and the second heating module 2 to heat up. The first heating module 1 and the second heating module 2 rely on the drive current for heating. The current generated by the power drive module needs to be input to the first heating module 1 and the second heating module 2 via the switching elements. The switching elements can be relays, and the number of switching elements is set according to the number of heating modules. Each switching element is connected to one heating module. Figure 1As shown, the switching element is specifically connected to the circuit of terminals X4, N2, X3, and N1. The main control module is connected to the switching element and can control it to perform switching actions, thereby controlling the switching element to switch the circuit from the power module to the first heating module 1 and the second heating module 2. When the main control module controls the switching element to be off, the circuit of the first heating module 1 and the second heating module 2 is disconnected, there is no driving current, and therefore the first heating module 1 and the second heating module 2 do not work. Only when the main control module controls the switching element to be on, the circuit of the first heating module 1 and the second heating module 2 is formed, and then the first heating module 1 and the second heating module 2 heat normally.

[0033] In one embodiment, a temperature sensing element 40 is also included, which is connected to the main control module and is used to detect the ambient temperature.

[0034] In a specific implementation, the electric heater may also include a temperature sensing element 40, which is a temperature sensor used to detect the ambient temperature of the environment in which the electric heater is located. The temperature sensing element 40 is connected to the main control module and can transmit the detected ambient temperature data back to the main control module. Thus, the main control module can adjust the heating power of the first heating module 10 and the second heating module 20 according to the ambient temperature data to achieve intelligent temperature control.

[0035] In one embodiment, both the first heating module 1 and the second heating module 2 are graphene evaporators.

[0036] In practice, both the first heating module 1 and the second heating module 2 employ graphene evaporators. Graphene can efficiently convert electrical energy into heat energy and dissipate heat in the form of far-infrared radiation.

[0037] In summary, the electric heater of this invention, through the combined operation of the first heating module and the second heating module, can allocate heating power according to user needs to meet the user's heating requirements. Please see Figure 3 , Figure 3 This is a flowchart illustrating the electric heater temperature control method provided in an embodiment of the present invention. The electric heater applied to the above embodiments has already been described in detail above, and for the sake of brevity, it will not be described again here. The electric heater temperature control method will now be described in detail. Figure 3 As shown, the electric heater temperature control method includes steps S110-S150.

[0038] S110. If a user command containing the target temperature is received, then heating is performed at the first preset power.

[0039] In practice, when a person is first covered with a blanket, the temperature inside the blanket is the same as the room temperature. At this time, the required room temperature is higher. After falling into a deep sleep, the temperature inside the blanket gradually rises, and the required room temperature decreases. The whole process lasts about 4 hours.

[0040] Before going to sleep, users can set a target temperature on the control panel of the electric heater. The heater then starts working, and this target temperature, denoted as Ta, represents the desired room temperature for the user to enter deep sleep. Upon receiving the user's command containing the target temperature Ta, the heater system operates at a first preset power. Specifically, the system achieves heating by controlling the first and second heating modules under the first and second heating modules. Let the power of both the first and second heating modules be P, then the power of both the first and second heating modules is P / 2. If the first preset power is 2P, then the system controls both heating modules under the first and second heating modules to operate, with a power of 2P. If the first preset power is P, then the system controls only one heating module under the first and second heating modules to operate, with a power of P. Alternatively, the system can control the first heating module to operate at full power, also with a power of P. In this embodiment, the first preset power can be set to 2P, so that the first heating module and the second heating module can work together at full power to heat the room, which can rapidly raise the indoor temperature.

[0041] In one embodiment, such as Figure 4 As shown, after receiving the user command containing the target temperature, the process further includes step S111.

[0042] S111. Obtain the initial ambient temperature, and calculate the first preset temperature and the first target time based on the initial ambient temperature and the preset algorithm.

[0043] In practice, after receiving a user command containing the target temperature, the system detects and obtains the initial ambient temperature through the heater's temperature sensor. The initial ambient temperature is the natural ambient temperature before the heater starts heating, denoted as T0. The system calculates a first preset temperature and a first target time based on the initial ambient temperature T0 and a preset algorithm, denoted as T1 and t1 respectively. The lower the initial ambient temperature, the higher the heat exchange between the indoor and outdoor environments during heater operation. To ensure stable operation and cooling duration during the later cooling phase, the initial ambient temperature T0 is combined with the preset algorithm to calculate the first preset temperature T1 and the first target time t1. The preset algorithm is designed based on actual heater experimental data. The first preset temperature T1 is used as a judgment condition in the following steps, and the first target time t1 is used to control the heater's heating time in the following steps.

[0044] S120. Obtain the current ambient temperature and determine whether the current ambient temperature is equal to a first preset temperature, wherein the first preset temperature is greater than the target temperature.

[0045] In practice, after receiving a user instruction to operate at a first preset power for heating, the system uses the heater's temperature sensor to detect the ambient temperature in real time, obtains the current ambient temperature, and determines whether the current ambient temperature is equal to the first preset temperature. The first preset temperature T1 is greater than the user-set target temperature Ta, and is automatically generated by the system based on the initial ambient temperature and a preset algorithm. In practice, the first preset temperature T1 is typically 4°C higher than the user-set target temperature Ta. For example, if the user sets the target temperature Ta to 22°C, then the first preset temperature T1 is typically 26°C.

[0046] S130. If the current ambient temperature is equal to the first preset temperature, then the heating is carried out at the second preset power for a first target time, wherein the second preset power is less than the first preset power.

[0047] In practice, if the system determines that the current ambient temperature has reached the first preset temperature T1, it means that the ambient temperature has exceeded the user-set target temperature Ta by a certain value due to the operation of the electric heater. At this time, the system operates at a second preset power for heating for the first target time. The second preset power is less than the first preset power. Specifically, the second preset power can be set to half of the first preset power. For example, if the first preset power is 2P, then the second preset power can be P. The system controls the first and second heating modules to work together at the second preset power for the first target time. The first preset temperature T1 is automatically generated by the system based on the initial ambient temperature and a preset algorithm. If the current ambient temperature has not yet reached the first preset temperature T1, the electric heater system continues to maintain the current heating power. The system heats by operating at a second preset power, which is lower than the first preset power. Due to the reduced power, the room temperature will slowly decrease after the first target time t1.

[0048] Furthermore, the first preset power is the rated power of the electric heater.

[0049] In practice, the first preset power is set to the rated power of the electric heater. Therefore, when the user turns on the electric heater, the system controls the first heating module and the second heating module to run at full load at rated power to heat the room. This can quickly raise the indoor temperature to the first preset temperature T, so that the room temperature reaches the first preset temperature T1 in a short time. Then, the cooling phase begins. Since the outdoor heat exchange efficiency is higher than the electric heater's heat production efficiency, after reaching the first preset temperature T1, the system switches to the second preset power to heat the room. The room temperature will gradually decrease until it reaches the user's target temperature Ta. The entire cooling phase can last for about 4 hours, which meets the user's heating needs when entering a deep sleep state.

[0050] S140. Obtain the current ambient temperature again, and determine whether the newly obtained current ambient temperature is equal to the target temperature.

[0051] In practice, after the temperature reaches the first preset temperature T1, the system operates at a second preset power, which is lower than the first preset power, to generate heat. Due to the reduced power and the higher heat exchange efficiency of the outdoor unit compared to the electric heater, the room temperature gradually decreases. After the electric heater operates at the second preset power for the first target time t1, the indoor temperature will drop to a certain temperature T2. At this point, the system uses the heater's temperature sensor to re-obtain the current ambient temperature; T2 is equivalent to the current ambient temperature. Therefore, the re-obtained current ambient temperature can be represented by T2. The system then determines whether the re-obtained current ambient temperature T2 reaches the user-set target temperature Ta, thereby verifying whether the cooling effect meets expectations.

[0052] S150. If the current ambient temperature is obtained again and equal to the target temperature, then heating is performed at a preset variable power.

[0053] In practice, the system determines that the current ambient temperature T2 has reached the target temperature Ta. This means that after the electric heater operates at the second preset power for the first target time t1, the indoor temperature will drop to the target temperature Ta set by the user. At this time, the system operates at a preset variable power to provide heating. The preset variable power is a power that jumps back and forth. For example, if P represents the power, then the preset variable power can be a power that changes in a recurring cycle like P-2P-P-2P... By operating at the preset variable power to provide heating, the indoor ambient temperature is kept fluctuating around the target temperature Ta, which meets the user's heating needs for sleep. Because the cooling process is relatively long, the change in indoor temperature is not obvious in a short period of time, and the user feels a relatively mild temperature, thus making the user feel comfortable.

[0054] In one embodiment, such as Figure 5 As shown, the heating operation with preset variable power includes steps S151-S153.

[0055] S151, operate at the first power for heating for a first preset time; S152. Heat at the second power for a second preset time, wherein the second power is greater than the first power and the second preset time is less than the first preset time; S153, Return to the step of operating at the first power for heating for a first preset time.

[0056] In practice, the preset variable power consists of a first power and a second power, which are two different power levels, with the second preset power being greater than the first preset power. When the system determines that the current ambient temperature equals the target temperature, the system first operates at the first power for a first preset time, then operates at the second power for a second preset time, where the second preset time is shorter than the first preset time. Then, it returns to operating at the first power for the first preset time, repeating this process. This achieves the goal of controlling the electric heater to repeatedly change its power for heating, keeping the indoor temperature fluctuating around the target temperature Ta, thus meeting the user's heating needs during sleep.

[0057] Furthermore, the second power is twice the first power.

[0058] In practice, the second power is set to twice the first power. Assuming the second power is 2P and the first power is P, when the system operates at power P for heating, the outdoor heat exchange efficiency is higher than the electric heater's heat production efficiency, and the room temperature will gradually decrease. However, when operating at power 2P for heating, the time is shorter, and the room temperature will show a downward trend. Eventually, the room temperature can drop to the user's set target temperature Ta. By operating the heating in the manner of power P-2P-P-2P-P..., the fluctuation of the indoor temperature can be reduced, making it closer to the target temperature Ta, thus improving the user's comfort.

[0059] In one embodiment, such as Figure 6 As shown, after step S150, steps S160-S170 are also included.

[0060] S160. If the current ambient temperature is obtained again and is greater than the target temperature, the current ambient temperature obtained again shall be used as the first preset temperature, and the heating shall be performed with the first preset power. S170. Return to the step of obtaining the current ambient temperature and determining whether the current ambient temperature is equal to the first preset temperature.

[0061] In practice, the system determines that the newly acquired ambient temperature T2 is greater than the target temperature Ta. This indicates that although the indoor temperature has decreased after the electric heater has been operating at the second preset power for the first target time t1, it has not reached the user-set target temperature Ta. To prevent the electric heater from cooling down too quickly, it needs to maintain its heating state. Therefore, the system directly uses the newly acquired ambient temperature T2 as the previous first preset temperature T1, that is, it uses the newly acquired ambient temperature T2 as the new judgment condition and operates at the first preset power for heating. Subsequently, the system returns to step S120 above, acquires the current ambient temperature, and determines whether the current ambient temperature is equal to the first preset temperature, which is the newly set T2. Then, it executes the steps after S120 sequentially until the final detected ambient temperature T2 is equal to Ta.

[0062] Figure 2 The diagram illustrates the relationship between temperature and time, and the relationship between time and power, when the method is applied to an electric heater. Figure 2 As shown, T0 is the initial ambient temperature, Ta is the target temperature, and T1 is the first preset temperature. Based on the initial ambient temperature T0 and the target temperature Ta, the system automatically generates the first preset temperature T1. Let the first preset power be 2P and the second preset power be P. When heating begins, the electric heater operates at the first preset power 2P. After the temperature rises to the first preset temperature T1, due to the thermal inertia of the electric heater's mechanical heating, the temperature will continue to rise to Tm1. Then, the system switches the electric heater to operate at the second preset power P. At this time, the heat exchange rate between the indoor and outdoor environments is higher than the heating rate of the electric heater. Therefore, the indoor ambient temperature slowly decreases to T2 after the first preset time t1, with a cooling rate of approximately 1℃ / hour. T2 < T1. After the temperature drops to T2, the indoor ambient temperature is still higher than the target temperature Ta. At this time, the system operates at power P for a period of time, and the temperature drops to Tn1. Then, the system controls the electric heater to heat up to T2 again at power 2P, repeating the above process until the ambient temperature drops to the target temperature Ta. Once the target temperature Ta is reached, the system continuously adjusts the electric heater, switching between 2P and P modes to maintain the ambient temperature around the target temperature Ta, thereby meeting the user's heating needs.

[0063] In summary, the method of this invention, when applied to an electric heater, allows users to experience a gentler temperature and greater comfort. Furthermore, the power can be adjusted according to the actual needs of the human body, resulting in a lower overall heating temperature and reduced power consumption of the electric heater.

[0064] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A method for temperature control of an electric heater, characterized in that, The method includes: If a user command containing the target temperature is received, heating will be performed at the first preset power. The current ambient temperature is obtained, and it is determined whether the current ambient temperature is equal to a first preset temperature, wherein the first preset temperature is greater than the target temperature; If the current ambient temperature is equal to the first preset temperature, then the heating is carried out at the second preset power for a first target time, wherein the second preset power is less than the first preset power; The current ambient temperature is obtained again, and it is determined whether the newly obtained current ambient temperature is equal to the target temperature. If the current ambient temperature is obtained again and equal to the target temperature, then heating is performed at a preset variable power.

2. The method according to claim 1, characterized in that, The first preset power is the rated power of the electric heater.

3. The method according to claim 1, characterized in that, After obtaining the current ambient temperature again and determining whether the newly obtained current ambient temperature is equal to the target temperature, the method further includes: If the current ambient temperature is obtained again and is greater than the target temperature, the current ambient temperature obtained again will be used as the first preset temperature, and the heating will be performed at the first preset power. Return to the step of obtaining the current ambient temperature and determining whether the current ambient temperature is equal to the first preset temperature.

4. The method according to claim 1, characterized in that, After receiving the user command containing the target temperature, the process also includes: Obtain the initial ambient temperature, and calculate the first preset temperature and the first target time based on the initial ambient temperature and a preset algorithm.

5. The method according to claim 4, characterized in that, The heating function, which operates at a preset variable power, includes: Heat at the first power for a first preset time; The heating is carried out at a second power for a second preset time, wherein the second power is greater than the first power and the second preset time is less than the first preset time; Return to the step of operating at the first power for heating for a first preset time.

6. The method according to claim 5, characterized in that, The second power is twice the first power.

7. An electric heater, characterized in that, For performing the electric heater temperature control method according to any one of claims 1-6, the electric heater comprising: A first heating module and a second heating module, both the first heating module and the second heating module include a first heating module and a second heating module, wherein the heating power of the first heating module and the second heating module is the same; A temperature control circuit is connected to the first heating module and the second heating module, and the temperature control circuit is used to control the first heating module and the second heating module to generate heat.

8. The electric heater according to claim 7, characterized in that, The temperature control circuit includes a main control module, a power drive module, and a switching element. The power drive module is connected to the first heating module and the second heating module through the switching element, and the main control module is connected to the switching element. The power drive module is used to generate a drive current, and the first heating module and the second heating module rely on the drive current to generate heat. The main control module is used to control the switching element to switch the circuit from the power module to the first heating module and the second heating module.

9. The electric heater according to claim 8, characterized in that, It also includes a temperature sensor, which is connected to the main control module and is used to detect the ambient temperature.

10. The electric heater according to claim 7, characterized in that, Both the first heating module and the second heating module are graphene evaporators.

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