CN120803125A

CN120803125A - State detection method of heating module, temperature control system and fish tank

Info

Publication number: CN120803125A
Application number: CN202511147459.9A
Authority: CN
Inventors: 段长强
Original assignee: Beijing Yuyi Technology Co ltd
Current assignee: Beijing Yuyi Technology Co ltd
Priority date: 2025-08-15
Filing date: 2025-08-15
Publication date: 2025-10-17

Abstract

The present application discloses a state detection method for a heating module, a temperature control system, and a fish tank, which relate to the field of temperature control technology. The main purpose is to solve the problem that existing fish tanks cannot effectively detect the heating state, which greatly affects the effectiveness of water temperature control. The method comprises: when the heating module arranged in the tank body is heating, obtaining the switch state of the temperature control switch arranged in the heating module, wherein the temperature control switch includes a first temperature control switch arranged at one end of the heating module and a second temperature control switch arranged at the other end of the heating module, one end of which is arranged at the cold water inlet of the tank body, and the other end of which is arranged at the hot water outlet of the tank body, wherein the liquid flowing into the heating module from the cold water inlet is discharged from the hot water outlet after being heated; when the first switch state of the first temperature control switch is circuit disconnection, or the second switch state of the second temperature control switch is communication disconnection, determining that the state detection result is an abnormal heating state, and outputting the state detection result.

Description

State detection method of heating module, temperature control system and fish tank

Technical Field

The application relates to the technical field of temperature control, in particular to a state detection method of a heating module, a temperature control system and a fish tank.

Background

With the diversification development of intelligent household equipment, a fish tank is indispensable as a user for optimizing indoor environments and fish-farming lovers. At present, when the traditional fish tank is used for changing water, a water-airing mode is generally adopted, the fish tank is placed on a balcony to be aired for a few days, so that substances harmful to ornamental fish, such as residual chlorine, in tap water are guaranteed to be completely decomposed, the tap water is enabled to be consistent with the ambient temperature, or the fish tank is heated through a heating module. However, in order to avoid the situation that the water temperature is too high, the heating module needs to be monitored manually in the heating process, so that the heating state cannot be detected effectively, and the effectiveness of water temperature control is greatly affected.

Disclosure of Invention

In view of the above, the present application provides a state detection method of a heating module, a temperature control system and a fish tank, and is mainly aimed at solving the problem that the existing fish tank cannot effectively detect the heating state and greatly affects the effectiveness of water temperature control.

According to one aspect of the present application, there is provided a state detection method of a heating module, including:

When a heating module arranged in a cylinder body heats, acquiring the on-off state of a temperature control switch arranged in the heating module, wherein the temperature control switch comprises a first temperature control switch arranged at one end of the heating module and a second temperature control switch arranged at the other end of the heating module, one end of the temperature control switch is arranged at a cold water inlet of the cylinder body, the other end of the temperature control switch is arranged at a hot water outlet of the cylinder body, and liquid flowing into the heating module from the cold water inlet is heated and then left from the hot water outlet;

when the first switch state of the first temperature control switch is a circuit disconnection or the second switch state of the second temperature control switch is a communication disconnection, determining that the state detection result is an abnormal heating state, and outputting the state detection result.

Further, the heating module comprises a heating element, the temperature sensing surfaces of the first temperature control switch and the second temperature control switch are in contact with the heating element, the electrode ends of the first temperature control switch are respectively connected with a power supply circuit, and the electrode ends of the second temperature control switch are respectively connected with a main control circuit, and the method further comprises:

when the first switch state is circuit communication and the second switch state is communication, determining that the state detection result is a normal heating state, and acquiring a first real-time temperature, a second real-time temperature and a third real-time temperature to perform temperature control based on the first real-time temperature, the second real-time temperature and the third real-time temperature;

the first real-time temperature is the target temperature in the cylinder, the second real-time temperature is the temperature at the cold water inlet, the third real-time temperature is the temperature at the hot water outlet, the first switch state is determined based on the power-on state of the main control circuit, and the second switch state is determined based on the result of collecting the electric signals.

Further, the heating module further includes a third temperature control switch, the third temperature control switch is connected to the power circuit, a target switch temperature of the third temperature control switch is greater than a target switch temperature of the first temperature control switch and the second temperature control switch, and the method further includes:

acquiring a third switch state of the third temperature control switch;

And when the third switch state is a circuit disconnection state, determining that the state detection result is a dry burning state.

Further, before the obtaining the on-off state of the temperature control switch set in the heating module, the method further includes:

Generating a frequency-invariant duty cycle-adjustable pulse width modulated signal based on the first, second, and third real-time temperatures in response to a heating command;

And sending the pulse width modulation signal to a zero-crossing detection assembly so as to control a heating element of the heating module to heat.

Further, the method further comprises:

and when the third real-time temperature is greater than a preset temperature threshold, generating a heating stopping control instruction.

According to another aspect of the present application, there is provided a temperature control system comprising a main controller, a power circuit, a heating module, and a temperature measuring assembly,

The power supply circuit provides power for the main controller and the heating module respectively;

The temperature measuring assembly is used for measuring real-time temperature;

the master controller is used for generating a pulse width modulation signal with an invariable frequency and an adjustable duty ratio based on the real-time temperature, and controlling a heating element of the heating module to heat through the pulse width modulation signal;

and the main controller executes the state detection method of the heating module.

Further, the system also comprises a zero crossing detection device,

The zero-crossing detection equipment is used for controlling the heating element of the heating module to heat based on the pulse width modulation signal.

Further, the system temperature measuring assembly comprises a first temperature measuring element, a second temperature measuring element and a third temperature measuring element, wherein the first temperature measuring element is used for measuring a first real-time temperature in the cylinder body, the second temperature measuring element is used for measuring a second real-time temperature at the cold water inlet, and the third temperature measuring element is used for measuring a third real-time temperature at the hot water outlet.

Further, the system also comprises a display screen, wherein the display screen is used for displaying the determined state detection result.

According to yet another aspect of the present application, there is provided a fish tank comprising a tank body and the temperature control system.

By means of the technical scheme, the technical scheme provided by the embodiment of the application has at least the following advantages:

the embodiment of the application obtains the on-off state of a temperature control switch arranged in a heating module when the heating module arranged in a cylinder body heats, wherein the temperature control switch comprises a first temperature control switch arranged at one end of the heating module and a second temperature control switch arranged at the other end of the heating module, one end of the temperature control switch is arranged at a cold water inlet of the cylinder body, the other end of the temperature control switch is arranged at a hot water outlet of the cylinder body, liquid flowing into the heating module from the cold water inlet is heated and then is reserved from the hot water outlet, when the first on-off state of the first temperature control switch is a circuit disconnection state or the second on-off state of the second temperature control switch is a communication disconnection state, the state detection result is determined to be an abnormal heating state, and the state detection result is output, so that the heating state detection purpose of the heating module in the heating process is realized, the condition of the heating module can be confirmed without manual monitoring, the condition of heating is avoided, and the effectiveness of water temperature control is improved.

The foregoing description is only an overview of the present application, and is intended to be implemented in accordance with the teachings of the present application in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present application more readily apparent.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

Fig. 1 shows a flow chart of a state detection method of a heating module provided by an embodiment of the application;

fig. 2 is a schematic block diagram showing a circuit connection relationship of a heating module of a fish tank according to an embodiment of the present application;

fig. 3 shows a schematic diagram of a PWM signal according to an embodiment of the present application;

fig. 4 shows a schematic diagram of a master control circuit according to an embodiment of the present application;

fig. 5 shows a schematic structural diagram of a temperature control system according to an embodiment of the present application;

fig. 6 shows a schematic diagram of a fish tank according to an embodiment of the present application;

FIG. 7 is a schematic diagram of another fish tank according to the embodiment of the present application;

FIG. 8 shows a schematic block diagram of a heating module provided by an embodiment of the present application;

Fig. 9 is a schematic block diagram showing an exploded state of a heating module of a fish tank according to an embodiment of the present application;

fig. 10 is a schematic structural view showing a water flow state of a heating module of a fish tank according to an embodiment of the present application;

FIG. 11 is a schematic structural view of a heating pipe of a heating module of a fish tank according to an embodiment of the present application;

Fig. 12 is a schematic structural diagram of a heating pipe of a first temperature control switch of a heating module of a fish tank according to an embodiment of the present application;

FIG. 13 is a block diagram showing a construction of a fish tank according to an embodiment of the present application;

Fig. 14 is a schematic structural view showing a heating module and a filtering unit of a fish tank according to an embodiment of the present application;

The device comprises a 110 cylinder body, a 120 cabinet body, a 130 sewage treatment assembly and a 140 water inlet assembly, a 131 sedimentation unit, a 132 purification unit, a 133 conveying unit, a 1311 sedimentation bin, a 1312 inclined plate, a 1321 first purification bin, a 1322 second purification bin, a 1323 plate body, a 1324 third filtration unit, a 1325 fourth filtration unit, a 1326 fifth filtration unit, a 1331 pump bin, a 1332 pump body, a 1333 circulating pipe, a 1334 water inlet pipe, a 141 filtration unit, a 142 external water pipe, a 143 heating module, a 1411 first filtration unit, a 1412 second filtration unit, a 1413 adapter and a 1414 decompression unit, a 1431 heating pipe, a 1432 second temperature measuring element, a 1433 third temperature measuring element, a 1434 first temperature control switch, a 1435 second temperature control switch, a 1436 third shell, a 1437 third temperature control switch, a 14311 pipe body, a 14312 flow guide pipe, a 14313 sealing member, a 14314 input port, a 14315 output port, a 14316 heating element, a 14317, a welding point 14341 electrode and a 14342 contact surface.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The embodiment of the application provides a state detection method of a heating module, as shown in fig. 1, comprising the following steps:

101. When the heating module arranged in the cylinder body heats, the on-off state of the temperature control switch arranged in the heating module is obtained.

The cylinder body is a region for containing water in the fish tank, the heating module is arranged inside the cylinder body and can be an instant heating module, a heating element is arranged in the instant heating module, the instant heating module comprises a graphene heating element, a thick film resistance wire heating element, a flange heating element and the like, the heating element is attached to the stainless steel annular outer wall to form a tubular structure, and a large amount of Joule heat is instantaneously generated by loading high-power alternating current by the heating element, so that water flowing through the stainless steel tube is heated. Meanwhile, a temperature control switch is arranged in the heating module, and a main controller serving as a current execution main body judges the detection result of the heating module by acquiring the switch state.

In the embodiment of the application, the temperature control switch comprises a first temperature control switch arranged at one end of the heating module and a second temperature control switch arranged at the other end of the heating module, and meanwhile, as the cylinder body is provided with a cold water inlet capable of conveying cold water and a hot water outlet capable of conveying hot water into the cylinder body after heating, one end of the instant heater is arranged at the cold water inlet of the cylinder body, and the other end of the instant heater is arranged at the hot water outlet of the cylinder body, so that liquid flowing into the heating module from the cold water inlet is left from the hot water outlet after heating.

In a specific implementation manner, the first temperature control switch and the second temperature control switch are elements comprising a temperature sensing surface and two electrode pins, when the contact surface is in contact with the heating element, after the heating element generates temperature, when the heating element reaches the action temperature of the temperature control switch, the metal sheet in the temperature control switch deforms, so that the communication is disconnected, and the switch is disconnected, otherwise, when the heating element does not reach the action temperature of the temperature control switch, the temperature control switch is always closed.

102. When the first switch state of the first temperature control switch is a circuit disconnection or the second switch state of the second temperature control switch is a communication disconnection, determining that the state detection result is an abnormal heating state, and outputting the state detection result.

In the embodiment of the application, since the heating module comprises the heating element, the temperature sensing surfaces of the first temperature control switch and the second temperature control switch are respectively contacted with the heating element, at the moment, as shown in fig. 2, the electrode ends of the first temperature control switch are respectively connected with the power supply circuit, the electrode ends of the second temperature control switch are respectively connected with the main control circuit, the first temperature control switch or the second temperature control switch can be closed or opened according to the heating temperature of the heating element, so that the main control circuit or the power supply circuit is connected or disconnected, the power supply circuit can be composed of an alternating current power supply with controllable power, and the main control circuit can be composed of a main controller or a main control chip of a current execution main body. Further, the main controller as the current execution subject may determine a state detection result of the instant heating assembly based on the first switch state and/or the second switch state and output the result. The switch state may represent an opened or closed state of the temperature control switch, and since the temperature control switch is connected to the circuit, the switch state may be identified by whether the switch state can receive an electrical signal, and the embodiment of the application is not limited in detail. Specifically, when the first switch state of the first temperature control switch is a circuit disconnection or the second switch state of the second temperature control switch is a communication disconnection, the heating element in the heating module is indicated to have an excessively high temperature and reach an action temperature, so that the switch is disconnected, namely, the state detection result is determined to be an abnormal heating state, and the state detection result is output. The abnormal heating state may be caused by scale, for example, because the heating element in the instant heating component is a heating tube formed by a resistance wire made of metal preferentially, when no scale exists in the heating tube, the heating tube can be heated to the temperature required by the fish tank in a short time, but when the scale should exist in the heating tube and is in the abnormal heating state, the scale affects the heating efficiency, so that the operating temperatures of the first temperature control switch and the second temperature control switch can be adjusted to be consistent with the temperature at which the scale exists for heating, for example, 200 ℃, and the embodiment of the application is not limited in detail.

In some embodiments, the heating element is a heating pipe, the instant heater is vertically placed in the cylinder body, a cold water inlet is arranged at one downward end, a hot water outlet is arranged at the other upward end, mechanical temperature control switches are respectively arranged at the upper end and the lower end, the mechanical temperature control switches are respectively a first temperature control switch and a second temperature control switch, the first temperature control switch is connected in series in the power circuit, and the second temperature control switch is connected in series with a communication line of the main controller. At this time, since the wall temperature of the heating pipe is far higher than the water temperature to be heated in the heating process, the types of the first temperature control switch and the second temperature control switch can be selected according to the action temperature of 120 ℃, 100 ℃ and the like, and the embodiment of the application is not particularly limited.

In some embodiments, since the second temperature control switch is disposed at the hot water outlet, when the second switch state of the second temperature control switch is based on the open circuit of the communication line of the master controller, it indicates that the communication is open, that is, the temperature of the heating element detected by the second temperature control switch reaches the operating temperature of the temperature control switch, and therefore, the switch is open, the master controller of the current executing body may determine that the state detection result is in an abnormal heating state, and effective heating control cannot be implemented.

In some embodiments, since the first temperature control switch is disposed at the cold water inlet and the second temperature control switch is disposed at the hot water outlet, the temperature at the first temperature control switch is generally lower than the temperature at the second temperature control switch, and at this time, during the heating process, the temperature at the second temperature control switch will reach the action temperature of the temperature control switch first, so the master controller will first detect that the second temperature control switch triggers the communication disconnection, i.e. is in the second switch state of communication disconnection, and the master controller generates a stop heating instruction to power off the heating module. However, in some cases, when the second temperature control switch is in an abnormal condition, the second temperature control switch cannot perform communication disconnection, the temperature of the first temperature control switch at the cold water inlet continuously rises until the action temperature of the temperature control switch is reached, the first temperature control switch automatically triggers the circuit to be disconnected, namely, the first switch state of the circuit to be disconnected is achieved, so that the power supply does not supply power to the heating module any more, and secondary overheat protection is formed, so that the abnormal heating state is determined.

In another embodiment of the present application, for further defining and describing, the step of determining the state detection result based on the first switch state and/or the second switch state includes:

When the first switch state is circuit communication and the second switch state is communication, determining that the state detection result is a normal heating state, and acquiring a first real-time temperature, a second real-time temperature and a third real-time temperature to perform temperature control based on the first real-time temperature, the second real-time temperature and the third real-time temperature.

In order to realize temperature control protection of water temperature in a cylinder, when the first temperature control switch and the second temperature control switch are of the same model, as the setting positions of the first temperature control switch and the second temperature control switch are different, the first temperature control switch is connected in series in a power circuit, the corresponding first switch state of the first temperature control switch is determined based on the power-on state of a main control circuit, the second temperature control switch is connected in series with a communication circuit of the main controller, and the corresponding second switch state is determined based on the result of electric signal acquisition.

In some embodiments, when the first switch state is circuit communication and the second switch state is communication, determining that the state detection result is a normal heating state, and acquiring a first real-time temperature, a second real-time temperature and a third real-time temperature to perform temperature control based on the first real-time temperature, the second real-time temperature and the third real-time temperature. The first real-time temperature is the target temperature in the cylinder, the second real-time temperature is the temperature at the cold water inlet, and the third real-time temperature is the temperature at the hot water outlet. When the acquired second real-time temperature is smaller than the target heating temperature, the main controller can continuously heat through temperature control, so that the temperature in the cylinder reaches the standard. At this time, the temperature control may be performed based on the first real-time temperature, the second real-time temperature, and the third real-time temperature.

In another embodiment of the present application, for further defining and describing, the steps further include:

acquiring a third switch state of the third temperature control switch;

In order to avoid the condition of no water dry heating in the cylinder body, so as to ensure the safety and the effectiveness of temperature control, the heating module further comprises a third temperature control switch, the third temperature control switch is connected to the power supply circuit, the third temperature control switch can be arranged between the first temperature control switch and the second temperature control switch, the third temperature control switch is arranged on the heating pipe in the same installation mode as the first temperature control switch and the second temperature control switch, and meanwhile, the target switch temperature of the third temperature control switch is greater than that of the first temperature control switch and the second temperature control switch.

In some embodiments, the main controller obtains a third switch state of the third temperature control switch in the heating process, at this time, in a special case, when the first temperature control switch and the second temperature control switch are abnormal, and after the heating module continues to heat, when the third switch state of the third temperature control switch is detected as a circuit disconnection, which indicates that the temperature of the heating element is too high, there may be a dry heating condition, the third temperature control switch triggers the circuit disconnection after reaching the action temperature, that is, the state detection result is determined as the dry heating state. In addition, the third temperature control switch is connected in series with the power supply circuit, so that the power supply circuit is disconnected, and the heating module is powered off accordingly, thereby achieving the purpose of stopping heating.

In another embodiment of the present application, for further defining and describing, before the step of obtaining the on/off state of the temperature control switch disposed in the heating module, the method further includes:

In order to realize accurate heating control of the water temperature of the fresh water and the target water temperature in the fish tank when the fish tank is changed, the main controller serving as a current execution main body obtains the first real-time temperature, the second real-time temperature and the third real-time temperature, wherein the first real-time temperature, the second real-time temperature and the third real-time temperature can be acquired through the temperature measuring element. At this time, since the heating pipe in the heating module is equivalent to a high-power resistor, for example, under the condition of supplying power at an alternating frequency of 50Hz, 100 sinusoidal half waves are loaded onto the heating element per second to generate heating power, so that the master controller generates a pulse width modulation signal with an invariable duty ratio and adjustable frequency, namely a PWM signal, based on the first real-time temperature, the second real-time temperature and the third real-time temperature, so as to open the gate during a high level period, so that sinusoidal alternating current can be normally loaded onto the heating module through the control circuit, the PWM signal closes the gate during a low level period, and alternating current cannot be loaded onto the heating module. In addition, in the main control circuit comprising the main controller, a zero crossing detection component can be further included, so that the gating switch can only act at the zero crossing point of sinusoidal alternating current, and the gating switch is prevented from being opened or closed at the high-amplitude position of sinusoidal alternating current, high-intensity conduction noise and radiation noise are generated, and the quality of a power supply of a commercial power network or equipment end is interfered.

In some embodiments, to achieve accuracy of temperature control, the period and duty cycle of the PWM signal are set to be precisely matched with the period of the sinusoidal alternating current, and the on/off timing of the zero crossing detection component is precisely controlled. Specifically, as shown in fig. 3, when generating the PWM signal, the minimum value of the high-level duration is preferably 10ms (1 sinusoidal ac half-wave period), and is increased by an integer multiple of 10ms, at this time, it is ensured that the expected consistent integer number of complete sinusoidal half-waves pass through the load in each time of turning on the zero-crossing detection component, so that the power value is accurate and controllable, and the heating effect is stable.

In some embodiments, in order to achieve the fineness of the power control (the number n of gears, i.e., 1 to n times of 10 ms), and the real-time performance of the power adjustment (the frequency of the PWM, i.e., the number of times of power adjustment in a unit time), the higher the PWM frequency, the more sensitive the power adjustment but the fewer the gears, whereas the lower the PWM frequency, the finer the gears but the worse the real-time performance of the power adjustment, therefore, the preferred setting of the PWM signal is 4Hz (25 th) or 5Hz (20 th), and the embodiment of the present application is not limited specifically. In addition, in order to synchronize the phase difference of the PWM signal and the alternating current, the PWM signal is preferably configured such that the high level duration is equal to the alternating current half-wave time of 10ms, or an integer multiple n of 10ms, to ensure that there are only 1 or n zero crossings per 10 ms. Meanwhile, in each PWM signal period, the minimum half-wave power is one, so that the n times of the half-wave power in a single period is realized by controlling the PWM duty ratio to be n times of 10 ms. The control power is the control value of n. For example, the PWM frequency is 4Hz, the period is 250ms, n=250/10=25. I.e. 4 power levels per second can be adjusted, the power levels being subdivided into 25 steps. At this time, if the PWM signal high level is not an integer multiple of 10ms, zero crossing points are lost or increased, the ac half wave number is offset, and the output power fluctuates.

It should be noted that, after the master controller generates the PWM signal based on the first real-time temperature, the second real-time temperature and the third real-time temperature, as in the master control circuit shown in fig. 4, the PWM signal opens the gate during the high level period, so that the sinusoidal ac can be normally loaded onto the heating module through the control circuit, the PWM signal closes the gate during the low level period, and the ac cannot be loaded onto the heating module. Meanwhile, in order to avoid opening or closing gating at a high amplitude position of sinusoidal alternating current, a zero-crossing detection component is arranged in a main control circuit, namely a PWM signal is sent to the zero-crossing detection circuit, so that a gating switch is ensured to act only at a zero-crossing point of sinusoidal alternating current, and a heating element of a heating module is controlled to heat.

In addition, in order to realize intelligent accurate control by temperature change purpose, the temperature measurement subassembly that sets up in the cylinder body can include three temperature measurement component, disposes respectively in cylinder body aquatic and cold water inlet, hot water delivery port department, carries out real-time temperature acquisition to confirm PWM signal based on the PID algorithm. The temperature measuring element may be an NTC temperature sensor, and the PID algorithm may be set based on a temperature control requirement, which is not specifically limited in the embodiment of the present application.

In some embodiments, when the second real-time temperature is lower than the in-cylinder temperature (the acquired first real-time temperature), the main controller starts the heating function of the heating module, takes the real-time temperature difference of the first real-time temperature and the second real-time temperature as one input parameter of the PID algorithm, and calculates the heated third real-time temperature as the input parameter of the other PID algorithm. Meanwhile, the main control circuit adjusts the alternating current power of the heating pipe in real time through the output PWM signal determined by the PID algorithm, so that the third real-time temperature can quickly and accurately track the target water temperature, the purpose of real-time isothermal heating is achieved, and the isothermal output precision is within +/-1 ℃.

In some embodiments, when the first switch state is in circuit communication and the second switch state is in communication, the instant heating module may be controlled to heat continuously based on the PWM signal, which is not limited in the embodiments of the present application.

In order to avoid the failure of temperature control caused by overhigh water temperature in the fish tank due to the added hot water, the main controller collects the third real-time temperature through the temperature measuring element arranged at the hot water outlet and compares the third real-time temperature with a preset temperature threshold value which is preset for the highest heating temperature in the cylinder body. When the third real-time temperature is greater than the preset temperature threshold, the water temperature is too high, and the main controller generates a heating stopping control instruction to control the power circuit to cut off the power.

The embodiment of the application provides a state detection method of a heating module, a temperature control system and a fish tank, wherein when the heating module arranged in a cylinder body heats, the embodiment of the application obtains the on-off state of a temperature control switch arranged in the heating module, wherein the temperature control switch comprises a first temperature control switch arranged at one end of the heating module and a second temperature control switch arranged at the other end of the heating module, one end of the temperature control switch is arranged at a cold water inlet of the cylinder body, the other end of the temperature control switch is arranged at a hot water outlet of the cylinder body, and liquid flowing into the heating module from the cold water inlet is heated and then reserved from the hot water outlet; when the first switch state of the first temperature control switch is circuit disconnection or the second switch state of the second temperature control switch is communication disconnection, determining that the state detection result is an abnormal heating state, outputting the state detection result, realizing the heating state detection purpose of the heating module in the heating process, confirming the heating condition without manual monitoring, avoiding the condition of overhigh water temperature or invalid heating, and improving the effectiveness of water temperature control.

Further, as an implementation of the method shown in fig. 1, an embodiment of the present application provides a temperature control system, as shown in fig. 5, where the system includes:

a main controller 21, a power circuit 22, a heating module 23, and a temperature measuring component 24,

The temperature measuring assembly is used for measuring real-time temperature;

Further, the system also comprises a zero crossing detection device,

The embodiment of the application provides a temperature control system, which comprises a main controller, a power supply circuit, a heating module and a temperature measuring component, wherein the power supply circuit respectively provides power for the main controller and the heating module, the temperature measuring component is used for measuring real-time temperature, the main controller is used for generating a pulse width modulation signal with constant frequency and adjustable duty ratio based on the real-time temperature and controlling a heating element of the heating module to heat through the pulse width modulation signal, the main controller executes the detection method of the water temperature in the fish tank, the heating state detection purpose of the heating module in the heating process is realized, the heating condition can be confirmed without manual monitoring, the water temperature is prevented from being too high or invalid, and the effectiveness of water temperature control is improved.

According to one embodiment of the application, as shown in fig. 6, the fish tank comprises a tank body 31 and the temperature control system 32, so that the purpose of detecting the heating state of the heating module in the water tank in the heating process is realized, the heating condition can be confirmed without manual monitoring, the condition of overhigh or invalid water temperature is avoided, and the effectiveness of water temperature control is improved.

In a specific embodiment, as shown in fig. 7 to 13, the fish tank in the embodiment of the application comprises a tank body, a tank body 110, a cabinet body 120, a sewage treatment assembly 130, wherein the tank body 110 is arranged on the cabinet body 120, the sewage treatment assembly 130 is arranged in the cabinet body 120, the sewage treatment assembly 130 comprises a water inlet pipe 1334 and a circulating pipe 1333, one end of the water inlet pipe 1334 is communicated with the tank body 110, the other end of the water inlet pipe 1334 is communicated with the input end of the sewage treatment assembly 130, one end of the circulating pipe 1333 is communicated with the output end of the sewage treatment assembly 130, the other end of the circulating pipe is communicated with the tank body 110, the water inlet assembly 140 comprises a filtering unit 141, a heating module 143 and an external water pipe 142, the external water pipe 142 is communicated with the filtering unit 141, the output end of the filtering unit 141 is communicated with the heating module 143, and the output end of the heating module 143 is communicated with the output end of the sewage treatment assembly 130. The filter unit 141 further includes an adapter 1413, the adapter 1413 being connected to an input end of the filter unit 141, an external water pipe 142 for connection to the adapter 1413, and a decompression unit 1414, the decompression unit 1414 being disposed between the first filter unit 1411 and the external water pipe 142. The filter unit 141 includes a first filter unit 1411, an external water pipe 142 connected to the first filter unit 1411, and a second filter unit 1412, the output end of the first filter unit 1411 connected to the second filter unit 1412, wherein the first filter unit 1411 includes a first housing and a particulate filter element disposed in the first housing, and wherein the second filter unit 1412 includes a second housing and an activated carbon filter element disposed in the second housing.

The sewage treatment assembly 130 includes a settling unit 131, a purifying unit 132, and a transporting unit 133, which are sequentially connected, the settling unit 131 being for receiving sewage transported through the cylinder 110, the transporting unit 133 being for supplying circulating water obtained after the completion of settling and purifying of the sewage to the cylinder 110, a water inlet pipe being connected to the settling unit 131, and a circulating pipe 1333 being connected to the transporting unit 133. The sewage treatment assembly 130 includes a water inlet pipe 1334 and a circulation pipe 1333, one end of the water inlet pipe 1334 is connected to the cylinder 110, the other end is connected to an input end of the sewage treatment assembly 130,

In this technical scheme, sewage treatment assembly 130 has included the precipitation unit 131 that communicates in proper order, purifying unit 132 and conveying unit 133, water inlet assembly 140 has included filter unit 141 and outside water pipe 142, based on this in the fish bowl use, be used for holding water and raising fish in cylinder block 110, and along with the growth of fish raising time, will produce the dirty in cylinder block 110, if unnecessary fish eats and fish just, and along with supplementing water in cylinder block 110, the dirty in cylinder block 110 can carry sewage treatment assembly 130, sewage can carry to precipitation unit 131 earlier, realize preliminary solid-liquid separation after settling sewage, then liquid is purified through purifying unit 132 again, then liquid can be sent back to cylinder block 110 through conveying unit 133, so can accomplish the sewage circulation treatment of cylinder block 110, can reduce the maintenance frequency of fish bowl. One end of the cylinder opening water supply pipe is communicated with the circulating pipe 1333.

The purifying unit 132 includes a first purifying bin 1321 and a second purifying bin 1322 which are sequentially connected, the first purifying bin 1321 is used for receiving the liquid overflowed from the settling bin 1311, a plate body 1323, a plurality of through holes are formed in the plate body 1323, the plate body 1323 is arranged at the top of the first purifying bin 1321, a third filtering unit 1324, the third filtering unit 1324 is arranged at the connection position of the first purifying bin 1321 and the settling bin 1311, a fourth filtering unit 1325 and a fifth filtering unit 1326, and the fourth filtering unit 1325 and the fifth filtering unit 1326 are arranged at the top of the first purifying bin 1321 in a stacked manner and are positioned at the bottom of the plate body 1323.

According to the fish tank provided by the embodiment of the application, when the fish tank is used for the first time, a user can communicate one end of the water supply pipe for opening the tank to the tap water pipe of the user, then the tap water pipe is started, water of the user can enter the tank body through the water supply pipe for opening the tank, the tank body 110 is filled with external water along with the increase of time, the external water can overflow to the sewage treatment assembly 130, the water can be used for cleaning the tank body 110 and the sewage treatment assembly 130, conditions can be created for the nitrifying system of the sewage treatment assembly 130, water quality parameters can be balanced, the states of equipment and the tank body 110 can be detected, the tank opening process does not depend on the manual transportation of clean water, tap water can be directly communicated into the fish tank, complex operation is not needed, and the use of the fish tank is more convenient.

As shown in fig. 7 to 14, in one possible embodiment, the heating module 143 includes a heating tube 1431, a second temperature measuring element 1432 and a third temperature measuring element 1433, the second temperature measuring element 1432 is disposed at an input end of the heating tube 1431, the third temperature measuring element 1433 is disposed at an output end of the heating tube 1431, the second temperature measuring element 1432 and the third temperature measuring element 1433 are used for detecting a temperature of a liquid flowing through the heating tube 1431, and the first temperature controlling switch 1434 and the second temperature controlling switch 1435 are connected to the heating element 14316 of the heating tube 1431, the first temperature controlling switch 1434 is disposed at the input end of the heating tube 1431, and the second temperature controlling switch 1435 is disposed at the output end of the heating tube 1431.

The heating module 143 provided by the embodiment of the application comprises a heating pipe 1431, a second temperature measuring element 1432, a third temperature measuring element 1433, a first temperature control switch 1434 and a second temperature control switch 1435, wherein the heating module 143 can be used as a part of a fish tank, for example, external water coming from the outside of the fish tank can flow through the heating pipe 1431, then the water is heated through the heating pipe 1431, and the heated water can be supplied into the fish tank after reaching the fish feeding temperature requirement, so that the water does not need to be dried by a user, and the use of the fish tank is more convenient. Through the tubular design of heating pipe 1431, when liquid flows through heating pipe 1431, heating pipe 1431 can exchange heat with liquid, and then just can accomplish the heating of liquid, can accomplish the heating while circulating through tubular design, can accomplish instant heating for heating module 143 is particularly useful as a subassembly of fish bowl.

According to the heating module 143 provided by the embodiment of the application, in the use process, the liquid inlet temperature and the liquid outlet temperature of the heating assembly can be detected through the second temperature measuring element 1432 and the third temperature measuring element 1433 respectively, so that on one hand, the operation power of the heating pipe 1431 is convenient to control, the heating efficiency can be improved while the expected heating temperature can be ensured, the instant heating can be realized, and on the other hand, the influence of the overhigh heating temperature on the fish feeding can be avoided.

According to the heating module 143 provided by the embodiment of the application, through the arrangement of the first temperature control switch 1434 and the second temperature control switch 1435, the heating temperatures at the input end and the output end of the heating pipe 1431 can be sensed respectively, specifically, the first temperature control switch 1434 and the second temperature control switch 1435 can be in temperature sensing surface contact with the heating pipe, when the temperature reaches the metal deformation temperature, the temperature is disconnected, the heating state of the heating module 143 can be detected based on the temperature, if the detection structure temperature of the first temperature control switch 1434 and the second temperature control switch 1435 is too high, the heating module 143 can not meet the heating requirement of water even if the higher operation temperature is adopted, in this case, the heating module 143 may have faults, such as the heating pipe 1431 does not flow through liquid, a phenomenon of heating the inner wall of the heating pipe 1431 occurs, or thicker scale is deposited on the inner wall of the heating pipe 1431, the scale affects the heating of the heating pipe 1431, the detection results of the first temperature control switch 1434 and the second temperature control switch 1435 rise, and the third temperature measurement element 143 does not meet the requirement, in time, and the heating module 143 is safer to use.

According to the heating module 143 provided by the embodiment of the application, the first temperature control switch 1434 is arranged at the input end of the heating pipe 1431, the second temperature control switch 1435 is arranged at the output end of the heating pipe 1431, and in a normal operation state, since the liquid to be heated flows in through the input end of the heating pipe 1431 and flows out of the output end, the detection result of the first temperature control switch 1434 is slightly lower than that of the second temperature control switch 1435, when the heating module 143 is abnormal, the detection result can be captured by the second temperature control switch 1435, the second temperature control switch 1435 can control the heating module 143 to stop operation, and when the control circuit of the second temperature control switch 1435 is abnormal, the temperature of the first temperature control switch 1434 can also be increased along with the increase of the service time of the heating module 143, the first temperature control switch 1434 can be controlled to be turned off again, and double-safety control of the heating module 143 can be realized through the first temperature control switch 1434 and the second temperature control switch 1435, so that the use of the heating module 143 is safer.

It is appreciated that the heating elements 14316, including but not limited to graphene heating element 14316, thick film resistive wire heating element 14316, flange heating element 14316, etc., are attached to the outer wall of the heating tube 1431 to form a tubular structure, and the heating element 14316 instantaneously generates a large amount of joule heat by loading a high-power alternating current so that water flowing in the stainless steel tube is heated.

It will be appreciated that the first and second temperature-controlled switches 1434 and 1435 are elements comprising a temperature sensing surface and two electrode pins 14341, when the contact surface 14342 contacts the heating element 14316, after the heating element 14316 generates temperature, when the heating element 14316 reaches the operating temperature of the temperature-controlled switch, the metal sheet inside the temperature-controlled switch deforms, so that the communication is opened, and the switch is opened, otherwise, when the heating element 14316 does not reach the operating temperature of the temperature-controlled switch, the temperature-controlled switch is always closed.

As shown in fig. 7-14, in one possible embodiment, the heating module 143 further includes a third housing 1436 with the heating tube 1431 disposed within the third housing 1436, wherein the first and second temperature controlled switches 1434, 1435 are each coupled to the third housing 1436 and are coupled to the heating element 14316 of the heating tube 1431 through the third housing 1436.

In this technical solution, a structural component of the heating module 143 is further provided, and the heating module 143 may further include a third housing 1436, and the heating tube 1431 may be packaged by the third housing 1436, while providing mounting positions for the first temperature control switch 1434 and the second temperature control switch 1435.

As shown in fig. 7-14, in one possible embodiment, the heating module 143 further includes a third temperature switch 1437, the third temperature switch 1437 being coupled to the heating element 14316 of the heating tube 1431 and disposed between the first temperature switch 1434 and the second temperature switch 1435.

In this technical solution, considering that the abnormal state of the heating module 143 mainly includes two types, the first type is that along with the increase of the service time of the heating module 143, more scale adheres to the inner wall of the heating tube 1431 of the heating module 143, which affects the heating efficiency, and the detected temperatures of the first temperature control switch 1434 and the second temperature control switch 1435 reach the off temperature of the temperature control switch, but the heating of water still does not reach the requirement, and the other type is that no liquid flows through the heating tube 1431, resulting in dry burning of the heating tube 1431. The heating module 143 provided in the embodiment of the present application can detect and control the abnormality of the heating pipe 1431 caused by the scale through the first temperature control switch 1434 and the second temperature control switch 1435. Further, by setting the third temperature control switch 1437, the dry heating state of the heating tube 1431 can be detected and controlled, so that the heating module 143 is safer to use.

In one possible embodiment, the off temperature of third temperature controlled switch 1437 is greater than the off temperature of first temperature controlled switch 1434 and greater than the off temperature of second temperature controlled switch 1435.

In this technical solution, a relationship among a third temperature control switch 1437, a first temperature control switch 1434 and a second temperature control switch 1435 is further provided, and considering that the first temperature control switch 1434 and the second temperature control switch 1435 are mainly used for detecting heating efficiency and scale adhesion state in the heating pipe 1431, the third temperature control switch 1437 is used for detecting dry heating state of the heating pipe 1431, and the third temperature control switch 1437, the first temperature control switch 1434 and the second temperature control switch 1435 are set to different off temperatures based on the detection, and the off temperatures of the first temperature control switch 1434 and the second temperature control switch 1435 can be the same or similar due to the same detection purpose, and the off temperature of the third temperature control switch 1437 needs to be higher than the first temperature control switch 1434 and the second temperature control switch 1435 to ensure accurate detection of the dry heating state of the heating module 143.

As shown in fig. 7 to 14, in one possible embodiment, the heating module 143 further includes a power circuit 1438 and a master circuit 1439, the second temperature control switch 1435 is connected to the master circuit 1439, the first temperature control switch 1434 is connected to the power circuit 1438, the third temperature control switch 1437 is connected to the power circuit 1438 and/or the master circuit 1439, and the master circuit 1439 is connected to the power circuit 1438, wherein when the second temperature control switch 1435 reaches a first temperature threshold, a first signal is sent to the master circuit 1439 to disconnect the power circuit 1438 through the master circuit 1439, and when the first temperature control switch 1434 reaches the first temperature threshold, to control the power circuit 1438 to disconnect.

In this technical solution, a structural composition of the heating module 143 is further provided, the heating module 143 may include a power circuit 1438 and a main control circuit 1439, the second temperature control switch 1435 is connected to the main control circuit 1439, the first temperature control switch 1434 is connected to the power circuit 1438, based on this, in a normal use process of the heating module 143, since the liquid flows into the heating tube 1431 through the input end and flows out of the heating tube 1431 through the output end, the detection result of the second temperature control switch 1435 should be slightly higher than the detection result of the first temperature control switch 1434, so that the second temperature control switch 1435 will find an abnormality of the heating module 143 first, when the heating temperature of the heating tube 1431 reaches the first temperature threshold, it is explained that even if the heating tube 1431 is heated at a higher temperature, the heating temperature of the liquid still does not reach the heating requirement, under this condition, the second temperature control switch 1435 will first send a low-level first signal, the main control circuit 1439 can control the power supply power through the first signal, the safe use of the heating module 143, and remind the user to maintain the heating module 143, if the heating module 143 is still in a condition of being disconnected under the condition of the first temperature control circuit 1434, if the temperature of the first temperature control circuit 1434 is still can be directly connected to the first temperature control the first temperature threshold, the abnormal condition is still can be achieved, if the power supply is still is directly detected, and the abnormality of the first temperature control module 1434 is directly, and the abnormality condition can be reached, if the condition is directly is detected, and the abnormality condition is directly under the condition conditions, and the condition conditions can be directly conditions can be reached, if the temperature condition according to the power module, if the condition is directly is the power module, and the temperature is directly, and the heating the temperature.

In this embodiment, the third temperature control switch 1437 may be connected to the power circuit 1438 and/or the master control circuit 1439, that is, the third temperature control switch 1437 may be connected to the power circuit 1438 or connected to the master control circuit 1439, or may be connected to the power circuit 1438 or the master control circuit 1439 at the same time, so long as the heating module 143 is powered off.

As shown in fig. 7 to 14, in one possible embodiment, the heating tube 1431 includes a tube body 14311, the heating element 14316 includes a heating line, the heating line is plated on the tube body 14311, the flow guide tube 14312 is disposed in the tube body 14311, an overflow gap is formed between the flow guide tube 14312 and an inner wall of the tube body 14311, and the sealing member 14313 and the sealing member 14313 are disposed at both ends of the tube body 14311.

In this technical solution, a structural composition of a heating tube 1431 is further provided, where the heating tube 1431 may include a tube body 14311, a flow guiding tube 14312 and a sealing element 14313, and after the liquid is supplied into the heating tube 1431, the liquid flows along an overflow gap between the flow guiding tube 14312 and the tube body 14311 under the guiding action of the flow guiding tube 14312, so that the liquid contacts with the heating tube 1431 more tightly based on the flow guiding gap, and heating efficiency can be improved. The heating tube 1431 can be sealed by the sealing element 14313, so that the overflow probability of liquid is reduced.

In this technical solution, the heating element 14316 may include a heating circuit that is plated on the pipe body 14311, the heating circuit may be formed by a welding point 14317, the power circuit 1438 is connected with the welding point 14317 to power on the heating circuit, the heating circuit has a certain resistance value, and the pipe body 14311 can be heated when current flows through the heating circuit.

As shown in fig. 7 to 14, in one possible embodiment, the heating tube 1431 further includes an input port 14314, the input port 14314 being connected to one end of the tube body 14311 for inputting a liquid, the liquid flowing through the tube body 14311 through the overflow gap, an output port 14315, the output port 14315 being connected to one end of the tube body 14311 for outputting the heated liquid, wherein the second temperature measuring element 1432 is connected to the input port 14314, and the third temperature measuring element 1433 is connected to the output port 14315.

In this technical solution, a structural composition of the heating tube 1431 is further provided, the heating tube 1431 may further include an input port 14314 and an output port 14315, so that the arrangement is convenient for supplying water outside the heating module 143, and meanwhile, the supply of heated liquid to the fish tank is convenient, the second temperature measuring element 1432 is connected to the input port 14314, and the third temperature measuring element 1433 is connected to the output port 14315, so that the second temperature measuring element 1432 and the third temperature measuring element 1433 can be relatively far away from the heating element 14316, and the detection results of the second temperature measuring element 1432 and the third temperature measuring element 1433 can be ensured to be more accurate, and the temperature of the liquid can be more accurately represented.

In some examples, the third temperature measuring element may be an NTC temperature sensor, and generally adopts a plurality of packaging forms such as a metal housing and epoxy resin, and different types and sizes of models may be selected according to specific situations.

In the embodiment of the present application, since the heating module 143 includes the heating element 14316, the temperature sensing surfaces of the first temperature control switch 1434 and the second temperature control switch 1435 are respectively contacted with the heating element 14316, at this time, the electrode ends of the first temperature control switch 1434 are respectively connected to the power circuit, the electrode ends of the second temperature control switch 1435 are respectively connected to the main control circuit, and the first temperature control switch 1434 or the second temperature control switch 1435 can be turned on or turned off according to the heating temperature of the heating element 14316, so that the main control circuit or the power circuit is connected or disconnected. Further, the main controller as the current execution subject may determine a state detection result of the instant heating assembly based on the first switch state and/or the second switch state and output the result. The switch state may represent an opened or closed state of the temperature control switch, and since the temperature control switch is connected to the circuit, the switch state may be identified by whether the switch state can receive an electrical signal, and the embodiment of the application is not limited in detail.

It will be appreciated by those skilled in the art that the modules or steps of the application described above may be implemented in a general purpose computing device, they may be concentrated on a single computing device, or distributed across a network of computing devices, they may alternatively be implemented in program code executable by computing devices, so that they may be stored in a memory device for execution by computing devices, and in some cases, the steps shown or described may be performed in a different order than that shown or described, or they may be separately fabricated into individual integrated circuit modules, or multiple modules or steps within them may be fabricated into a single integrated circuit module for implementation. Thus, the present application is not limited to any specific combination of hardware and software.

The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A method for detecting the status of a heating module, comprising:

When the heating module provided in the cylinder body is heating, the switch state of the temperature control switch provided in the heating module is obtained, wherein the temperature control switch includes a first temperature control switch provided at one end of the heating module and a second temperature control switch provided at the other end of the heating module, wherein the one end is provided at the cold water inlet of the cylinder body, and the other end is provided at the hot water outlet of the cylinder body, wherein the liquid flowing into the heating module from the cold water inlet is heated and then discharged from the hot water outlet;

When the first switch state of the first temperature controlled switch is circuit disconnection, or the second switch state of the second temperature controlled switch is communication disconnection, the state detection result is determined to be an abnormal heating state, and the state detection result is output.

2. The method according to claim 1, wherein the heating module includes a heating element, the temperature-sensing surfaces of the first temperature-controlled switch and the second temperature-controlled switch are in contact with the heating element, the electrode ends of the first temperature-controlled switch are respectively connected to a power circuit, and the electrode ends of the second temperature-controlled switch are respectively connected to a main control circuit, and the method further comprises:

When the first switch state is circuit connected and the second switch state is communication connected, determining that the state detection result is a normal heating state, and obtaining a first real-time temperature, a second real-time temperature, and a third real-time temperature, so as to perform temperature control based on the first real-time temperature, the second real-time temperature, and the third real-time temperature;

Among them, the first real-time temperature is the target temperature in the cylinder, the second real-time temperature is the temperature at the cold water inlet, and the third real-time temperature is the temperature at the hot water outlet. The first switch state is determined based on the power-on state of the main control circuit, and the second switch state is determined based on the result of collecting electrical signals.

3. The method according to claim 2, wherein the heating module further comprises a third temperature-controlled switch, the third temperature-controlled switch being connected to the power circuit, the target switching temperature of the third temperature-controlled switch being greater than the target switching temperatures of the first temperature-controlled switch and the second temperature-controlled switch, and the method further comprising:

Acquiring a third switch state of the third temperature controlled switch;

When the third switch state is circuit disconnection, the state detection result is determined to be a dry-burning state.

4. The method according to claim 3, wherein before obtaining the switch status of the temperature control switch provided in the heating module, the method further comprises:

In response to a heating instruction, generating a pulse width modulation signal with a constant frequency and an adjustable duty cycle based on the first real-time temperature, the second real-time temperature, and the third real-time temperature;

The pulse width modulation signal is sent to the zero-crossing detection component to control the heating element of the heating module to heat.

5. The method according to claim 4, further comprising:

When the third real-time temperature is greater than a preset temperature threshold, a heating stop control instruction is generated.

6. A temperature control system, characterized by comprising: a main controller, a power supply circuit, a heating module, and a temperature measurement component,

Wherein, the power supply circuit provides power to the main controller and the heating module respectively;

The temperature measuring component is used to measure the real-time temperature;

The main controller is used to generate a pulse width modulation signal with a constant frequency and adjustable duty cycle based on the real-time temperature, and control the heating element of the heating module to heat through the pulse width modulation signal;

The main controller executes the state detection method of the heating module according to any one of claims 1 to 5.

7. The system according to claim 6, characterized in that the system further comprises: a zero-crossing detection device,

The zero-crossing detection device is used to control the heating element of the heating module to heat based on the pulse width modulation signal.

8. The system according to claim 6 is characterized in that the system temperature measuring component includes a first temperature measuring element, a second temperature measuring element and a third temperature measuring element, the first temperature measuring element is used to measure a first real-time temperature in the cylinder body, the second temperature measuring element is used to measure a second real-time temperature at the cold water inlet, and the third temperature measuring element is used to measure a third real-time temperature at the hot water outlet.

9. The system according to claim 6, characterized in that the system further comprises: a display screen, wherein the display screen is used to display the determined status detection result.

10. A fish tank, comprising: a tank body and the temperature control system according to claim 6.