Temperature control device and water temperature constant system

Abstract

The utility model provides a temperature control device and a water temperature constant system, which can still quickly adjust the water temperature according to the current temperature and the target temperature under the influence of the outside. The temperature control device comprises a first temperature sensor used for detecting the current temperature of liquid in contact with the first temperature sensor; the heating module is connected with the first temperature sensor and used for heating the liquid to the target temperature when the current temperature is lower than the preset target temperature; and the cooling module is independent of the heating module, is connected with the first temperature sensor, and is used for cooling the liquid to a target temperature when the current temperature is higher than a preset target temperature.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of constant temperature equipment, in particular to a temperature control device and a water temperature constant system. BACKGROUND

[0002] In the field of semiconductor, the performance of semiconductor devices may be degraded or failed due to the influence of environmental temperature during long-term use. Therefore, the temperature stability of semiconductor devices is usually tested for a long time in a constant temperature environment provided by an instrument or device capable of constant water temperature, so as to evaluate the reliability of the devices under the preset working temperature condition. Although the existing instrument or device capable of constant water temperature can provide a constant temperature environment, when the existing instrument or device capable of constant water temperature is affected by the outside world, the accuracy of the result of the temperature stability test of the semiconductor device is affected. CONTENT OF THE INVENTION

[0003] One advantage of the present application is to provide a temperature control device and a water temperature constant system, which can still adjust the water temperature quickly according to the current temperature and the target temperature under the influence of the outside world.

[0004] Another advantage of the present application is to provide a temperature control device and a water temperature constant system, wherein in order to achieve the above-mentioned advantage, expensive materials or complex structures are not required in the present application. Therefore, the scheme provided by the present application can successfully and effectively solve the above-mentioned problems, not only providing a simple temperature control device and a water temperature constant system, but also increasing the practicability and reliability of the temperature control device and the water temperature constant system.

[0005] Therefore, in order to achieve the above-mentioned at least one advantage or other advantages and purposes of the present application, the present application provides a temperature control device, comprising:

[0006] a first temperature sensor for detecting the current temperature of the liquid in contact with the first temperature sensor;

[0007] a heating module connected with the first temperature sensor, for heating the temperature of the liquid to the target temperature when the current temperature is lower than the target temperature;

[0008] a cooling module, which is independent of the heating module and connected with the first temperature sensor, for cooling the liquid to the target temperature when the current temperature is higher than the target temperature.

[0009] In this way, by controlling the heating or cooling of the liquid by the heating module and the cooling module respectively, compared with a solution in which the heating module and the cooling module are not independent of each other (i.e. one module controls the heating or cooling of the liquid), the present solution can control the power of the heating of the liquid and the efficiency of the cooling of the liquid according to different environments and different target temperatures, so as to more flexibly maintain the temperature of the liquid, thereby providing a more stable constant temperature environment.

[0010] According to an embodiment of the present application, the heating module comprises a heating controller and a heating assembly, one end of the heating controller is connected with the heating assembly, and the other end of the heating controller is connected with the first temperature sensor, the heating controller is used for receiving the current temperature detected by the first temperature sensor, and controlling the heating power of the heating assembly according to the current temperature and the target temperature, so as to make the current temperature tend to the target temperature.

[0011] In this way, the heating controller can control the heating power of the heating assembly according to the current temperature detected by the first temperature sensor and the target temperature.

[0012] According to an embodiment of the present application, the heating assembly is a heating coil.

[0013] In this way, compared with some conventional heating methods, the heating coil not only has high energy conversion efficiency, can achieve high heating effect with less energy consumption, and has a high upper limit of the heating power, can quickly convert electrical energy into heat energy, so as to heat the water to the required temperature in a short time, which is very effective for application scenarios that require hot water quickly. And heating water by using a heating coil can usually achieve precise temperature regulation through electronic control, which can help the temperature control device to control the current temperature of the liquid to be closer to the target temperature. In addition, the heating coil device is compact in design and occupies small space, which can make the temperature control device smaller in size, and can be more suitable for environments with strict size requirements.

[0014] According to an embodiment of the present application, the cooling module comprises a cooling controller and a cooling assembly, one end of the cooling controller is connected with the cooling assembly, and the other end of the cooling controller is connected with the first temperature sensor, the cooling controller is used for receiving the current temperature detected by the first temperature sensor, and controlling the cooling efficiency of the cooling assembly according to the current temperature and the target temperature, so as to make the current temperature tend to the target temperature.

[0015] In this way, the cooling controller can control the cooling efficiency of the cooling assembly according to the current temperature detected by the first temperature sensor and the target temperature.

[0016] According to one embodiment of the present application, the cooling assembly is a cooling coil.

[0017] In this way, because the material of the cooling coil has good heat conduction properties, the liquid in the temperature control device and the cold water from the outside can directly exchange heat, and then the heat in the liquid can be effectively transferred away by the cold water through the flow of the cold water, so as to quickly reduce the temperature of the liquid, so as to achieve the purpose of making the current temperature tend to the target temperature. In addition, the cooling coil has simple structure, relatively easy maintenance, stable operation, and low probability of failure, so that the use of the cooling coil can improve the reliability of the temperature control device. In addition, the flow and temperature of the cold water can be adjusted according to the needs of different environments, so as to achieve different cooling effects, and thus meet different environmental requirements.

[0018] According to one embodiment of the present application, the temperature control device is also provided with a temperature protection circuit, the temperature protection circuit comprising a temperature control module, a relay module, and a power supply module, the first end of the relay module being connected with the temperature control module, the second end of the relay module being connected with the power supply module, and the third end of the relay module being connected with the heating assembly, the temperature control module being used to disconnect the second end of the relay module from the third end when the current temperature is greater than the preset protection temperature threshold, and cut off the power supply of the heating assembly by the power supply module.

[0019] In this way, the temperature protection circuit provided in the present application is used to monitor the current temperature of the liquid, and when the current temperature is greater than the preset protection temperature threshold, the power supply of the heating module is cut off, so as to prevent the current temperature of the liquid from being too high and thus affecting the service life of the water circulation system, and reduce the safety hazards caused by the current temperature of the liquid being too high.

[0020] According to one embodiment of the present application, the temperature control module comprises the second temperature sensor and a protection control unit, the protection control unit being connected with the relay module and the second temperature sensor, the protection control unit being used to receive the temperature data of the current liquid detected by the second temperature sensor, and control whether the power supply of the heating module is cut off by the relay module according to the temperature data and the preset protection temperature threshold.

[0021] In this way, the protection control unit can control whether the power supply of the heating module is cut off by the relay module according to the temperature data of the current liquid detected by the second temperature sensor and the preset protection temperature threshold, so as to prevent the current temperature of the liquid from being too high and thus affecting the service life of the water circulation system, and reduce the safety hazards caused by the current temperature of the liquid being too high.

[0022] According to one embodiment of the present application, the protection control unit comprises a protection controller, a voltage driving module, and a relay module comprising a first relay, a contactor, and a second relay connected in sequence. The protection controller is connected to the second temperature sensor at one end and to the first end of the first relay at the other end. The voltage driving module is connected to the second end of the first relay. The third end of the first relay is connected to the first end of the contactor. The second end of the contactor is connected to the power supply module. The third end of the contactor is connected to the first end of the second relay. The second end of the second relay is connected to the heating assembly.

[0023] In this way, when the current temperature of the liquid exceeds the protection temperature, the protection controller controls the first relay to disconnect the power supply module from the contactor, thereby cutting off the power supply of the heating module, to prevent the current temperature of the liquid from being too high and adversely affecting the service life of the water circulation system, and to reduce the safety hazards caused by the current temperature of the liquid being too high.

[0024] According to one embodiment of the present application, the temperature control device further comprises a touch screen connected to the heating controller and the cooling controller, for displaying the temperature control process in the form of a curve.

[0025] In this way, the touch screen can be used to set the target temperature, and the target temperature can be conveniently and quickly modified without the need to modify the code of the controller to modify the target temperature. Moreover, the temperature control process is displayed on the touch screen in the form of a curve, which can more intuitively reflect the process of the temperature control device maintaining the temperature of the liquid.

[0026] According to another aspect of the present application, the present application further provides a water temperature maintaining system, which comprises:

[0027] the temperature control device described above;

[0028] a host computer connected to the temperature control device for controlling the temperature control device.

[0029] Beneficial effects: In the temperature control device, the heating module and the cooling module are independent of each other, so that the heating module and the cooling module can operate independently according to actual needs without interfering with each other, thereby improving the response speed and control accuracy of the system. When heating is needed, the heating module can be quickly started without the intervention of the cooling module. Similarly, when cooling is needed, the cooling module can work immediately without being affected by the heating module. This independence not only reduces energy waste, but also reduces equipment wear and tear, improves the reliability and stability of the temperature control device. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the accompanying drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative effort.

[0031] Figure 1 A module schematic diagram of a thermostat provided by an embodiment of the present application;

[0032] Figure 2 A module schematic diagram of a thermostat provided by another embodiment of the present application;

[0033] Figure 3 A module schematic diagram of a thermostat provided by another embodiment of the present application;

[0034] Figure 4 A module schematic diagram of a thermostat provided by another embodiment of the present application.

[0035] The accompanying drawings are as follows: 10, temperature control device; 11, first temperature sensor; 12, heating module; 121, heating controller; 122, heating assembly; 13, cooling module; 131, cooling controller; 132, cooling assembly; 14, temperature protection circuit; 141, temperature control module; 1411, second temperature sensor; 1412, protection control unit; 14121, protection controller; 14122, voltage driving module; 142, relay module; 1421, first relay; 1422, contactor; 1423, second relay; 143, power supply module; 15, touch screen. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, a large number of specific details are set forth in order to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0037] The inventor found that when the existing instrument or device capable of constant water temperature is affected by the outside world, the switching of the existing constant water temperature instrument or device to the water temperature adjustment mode will have hysteresis, which will affect the accuracy of the results of the temperature stability test of the semiconductor device. In order to solve this problem, the present application provides a temperature control device 10 and a water temperature constant system, which can still quickly adjust the water temperature according to the current temperature and the target temperature under the influence of the outside world.

[0038] In particular, refer to the accompanying drawings Figure 1 One embodiment of the present application provides a temperature control device 10, comprising:

[0039] a first temperature sensor 11, a heating module 12, and a cooling module 13.

[0040] More specifically, the first temperature sensor 11 is configured to detect the current temperature of the liquid in contact with the first temperature sensor 11; the heating module 12 is connected to the first temperature sensor 11 and configured to heat the liquid to a target temperature when the current temperature is lower than the target temperature; and the cooling module 13 is independent of the heating module 12 and connected to the first temperature sensor 11, and configured to cool the liquid to the target temperature when the current temperature is higher than the target temperature.

[0041] It should be noted that the target temperature is a pre-set value stored in the cooling module 13 and the heating module 12, and the cooling module 13 and the heating module 12 are independently set. According to the current temperature of the liquid detected by the first temperature sensor 11 and the target temperature, the heating module 12 and the cooling module 13 control the heating or cooling of the liquid respectively, so that the heating module 12 and the cooling module 13 can operate independently according to the actual demand without interference, thereby improving the response speed and control accuracy of the temperature control device 10. When the temperature of the liquid needs to be raised, the heating module 12 can be quickly started without the intervention of the cooling module 13; similarly, when the temperature of the liquid needs to be lowered, the cooling module 13 can work immediately without being affected by the heating module 12. Such independence not only reduces energy waste, but also reduces equipment wear and tear, improves response rate, and improves the reliability and stability of the temperature control device 10.

[0042] It should be noted that the heating module 12 and the cooling module 13 are independent of each other, so that the temperature control device 10 can simultaneously heat and cool the liquid. Specifically, the heating module 12 and the cooling module 13 receive the temperature value of the first temperature sensor 11 in real time, and the temperature value of the first temperature sensor 11 is the current temperature of the liquid. When the current temperature of the liquid tends to the target temperature of the liquid, the heating module 12 and the cooling module 13 in the temperature control device 10 can simultaneously heat and cool the liquid. Based on the target temperature value, the current temperature of the liquid is dynamically regulated to make the current temperature of the liquid tend to the target temperature of the liquid. Of course, those skilled in the art can know that the target temperature value can be set by the upper computer and transmitted to the cooling module 13 and the heating module 12, or the target temperature value can be set by a person to the cooling module 13 and the heating module 12, as long as the cooling module 13 and the heating module 12 can receive the target temperature value. Exemplarily, when the current temperature of the liquid tends to the target temperature of the liquid, if the ambient temperature decreases, the current temperature of the liquid decreases, the heating module 12 increases the heating power or the cooling module 13 reduces the cooling efficiency, or both, so that the current temperature of the liquid again tends to the target temperature of the liquid. Similarly, when the current temperature of the liquid tends to the target temperature of the liquid, if the ambient temperature increases, the current temperature of the liquid increases, the heating module 12 can reduce the heating power or the cooling module 13 can increase the cooling efficiency, or both, so that the current temperature of the liquid again tends to the target temperature of the liquid.

[0043] It should be noted that, as shown in Figure 2 in one of the embodiments of the present application, the heating module 12 includes a heating controller 121 and a heating assembly 122. One end of the heating controller 121 is connected with the heating assembly 122, and the other end of the heating controller 121 is connected with the first temperature sensor 11. The heating controller 121 is used to receive the current temperature of the liquid detected by the first temperature sensor 11, and control the heating power of the heating assembly 122 according to the current temperature and the target temperature, so that the current temperature of the liquid tends to the target temperature. In this way, the heating controller 121 can control the heating power of the heating assembly 122 according to the current temperature detected by the first temperature sensor 11 and the preset target temperature.

[0044] It is worth noting that the heating assembly 122 is a heating coil, compared with some traditional heating methods, the heating coil not only has high energy conversion efficiency, can achieve high heating effect with less energy consumption, and the upper limit of the heating power of the heating coil is high, can quickly convert electrical energy into heat energy, so as to heat the liquid to the required temperature in a short time, which is very effective for application scenarios that need to quickly reach the target temperature. And the heating controller 121 is connected with the heating coil, and precise temperature regulation is realized by controlling the heating controller 121, which can help the temperature control device 10 to control the current temperature of the liquid to be closer to the target temperature. In addition, the heating coil device is designed compactly, occupies small space, can make the volume of the temperature control device 10 smaller, and can be more suitable for environments with strict volume requirements.

[0045] Further, as shown in Figure 2 The cooling module 13 includes a cooling controller 131 and a cooling assembly 132, one end of the cooling controller 131 is connected with the cooling assembly 132, and the other end of the cooling controller 131 is connected with the first temperature sensor 11. The cooling controller 131 is used to receive the current temperature detected by the first temperature sensor 11, and control the cooling efficiency of the cooling assembly 132 according to the current temperature and the target temperature, so that the current temperature tends to the target temperature. In this way, the cooling controller 131 can control the cooling efficiency of the cooling assembly 132 according to the current temperature detected by the first temperature sensor 11 and the preset target temperature.

[0046] It is worth noting that the cooling assembly 132 is a cooling coil, because the material made into the cooling coil has good thermal conductivity, so that the liquid in the temperature control device 10 and the cold water outside can directly exchange heat, and then by means of the flow of cold water, the heat in the liquid can be effectively transferred away through the cold water, thereby quickly reducing the temperature of the liquid, so as to achieve the purpose of making the current temperature tend to the target temperature. And the structure of the cooling coil is simple, the maintenance is relatively easy, the operation is stable, and the probability of failure is small, so using the cooling coil can improve the reliability of the temperature control device 10. In addition, the cooling controller 131 is connected with the cooling coil, and the cooling controller 131 can adjust the flow of cold water according to the needs of different environments, so as to achieve different cooling effects, and thus meet different environmental requirements. Of course, those skilled in the art can know that the cooling coil can also be internally provided with refrigerant, and the cooling controller 131 receives the current temperature detected by the first temperature sensor 11, controls, and then controls the refrigerant flow of the cooling coil to achieve the purpose of quickly reducing the temperature of the liquid.

[0047] In one embodiment, as shown in Figure 3As shown, the temperature control device 10 is further provided with a temperature protection circuit 14 for cutting off the power supply of the heating module 12 when the current temperature is greater than the preset protection temperature threshold. In the embodiment, the heating module 12 includes a heating controller 121 and a heating assembly 122, one end of the heating controller 121 is connected with the heating assembly 122, and the other end of the heating controller 121 is connected with the first temperature sensor 11. The temperature protection circuit 14 includes a temperature control module 141, a relay module 142, and a power supply module 143. The first end of the relay module 142 is connected with the temperature control module 141, the second end of the relay module 142 is connected with the power supply module 143, and the third end of the relay module 142 is connected with the heating assembly 122. The temperature control module 141 outputs a control signal to the heating assembly 122 through the first end and the third end of the relay module 142 in sequence. The power supply module 143 outputs a power supply voltage to the heating assembly 122 through the second end and the third end of the relay module 142 in sequence. If the current temperature is greater than the preset protection temperature threshold, the temperature control module 141 controls the second end and the third end of the relay module 142 to be disconnected, so that the power supply voltage output by the power supply module 143 cannot be transmitted to the heating assembly 122, thereby achieving rapid cutting off of the power supply of the heating module 12 and stopping the heating assembly 122 from outputting heat energy from the power supply.

[0048] It should be noted that the temperature protection circuit 14 is used to monitor the current temperature of the liquid and cut off the power supply of the heating module 12 when the current temperature is greater than the preset protection temperature threshold, so as to prevent the current temperature of the liquid from being too high and affecting the service life of the water circulation system, and reduce the safety hazards caused by the current temperature of the liquid being too high.

[0049] For example, by providing the temperature protection circuit 14, the safety protection of the temperature control device 10 can be more perfect. In the case of heating abnormality, when the liquid is overheated, not only can the heating assembly 122 be controlled to stop heating by the heating controller 121, but also the power supply of the heating assembly 122 can be cut off by the temperature protection circuit 14, so as to stop heating and prevent the heating assembly 122 from continuously heating the liquid when the heating controller 121 is out of control, so as to prevent the liquid temperature from being too high and causing safety hazards.

[0050] Further, as shown in Figure 4 The temperature control module 141 includes a second temperature sensor 1411 and a protection control unit 1412. The protection control unit 1412 is connected with the relay module 142 and the second temperature sensor 1411. The protection control unit 1412 is used to receive the current temperature of the liquid detected by the second temperature sensor 1411 and output a control signal to the relay module 142 according to the current temperature and the preset protection temperature threshold, so as to control whether the relay module 142 is disconnected from the heating assembly 122.

[0051] It should be noted that the protection control unit 1412 can control whether the relay module 142 cuts off the connection with the heating assembly 122 according to the current temperature of the liquid detected by the second temperature sensor 1411 and the preset protection temperature threshold, thereby disconnecting the power supply module 143 from the power supply connection of the heating module 12, preventing the current temperature of the liquid from being too high and adversely affecting the service life of the water circulation system, and reducing the safety hazards caused by the current temperature of the liquid being too high.

[0052] Specifically, the protection control unit 1412 includes a protection controller 14121 and a voltage driving module 14122, and the relay module 142 includes a first relay 1421, a contactor 1422, and a second relay 1423 connected in sequence. The protection controller 14121 is connected to the second temperature sensor 1411 at one end and connected to the first end of the first relay 1421 at the other end. The voltage driving module 14122 is connected to the second end of the first relay 1421. The third end of the first relay 1421 is connected to the first end of the contactor 1422. The second end of the contactor 1422 is connected to the power supply module 143. The third end of the contactor 1422 is connected to the first end of the second relay 1423. The second end of the second relay 1423 is connected to the heating assembly 122. In this embodiment, the first relay 1421 is a normally closed relay. The second temperature sensor monitors the current temperature of the liquid in real time. The protection controller 14121 receives the current temperature transmitted by the second temperature sensor and compares the current temperature with the preset protection temperature threshold. If the current temperature is lower than the preset protection temperature threshold, the voltage driving module 14122 outputs a voltage signal through the first relay 1421 to the contactor 1422. The coil of the contactor 1422 receives the voltage signal and is attracted, i.e., the third end of the contactor 1422 is connected to the first end of the second relay 1423. The power supply voltage of the power supply module 143 is supplied to the heating assembly 122 through the second end and the third end of the contactor 1422 and the second relay 1423, thereby achieving power supply to the heating assembly.

[0053] If the current temperature is higher than the preset protection temperature threshold, the protection controller 14121 controls the first relay 1421 to disconnect the third end of the first relay 1421 from the first end of the contactor 1422. The voltage driving module 14122 cannot output a voltage signal through the first relay 1421 to the contactor 1422. The coil of the contactor 1422 does not receive the voltage signal, disconnecting the third end of the contactor 1422 from the first end of the second relay 1423. The power supply voltage of the power supply module 143 cannot be supplied to the heating assembly 122 through the second end and the third end of the contactor 1422 and the second relay 1423, thereby achieving power supply cut-off to the heating assembly.

[0054] In particular, the temperature data of the current liquid detected by the second temperature sensor 1411 is equivalent to the current temperature of the liquid in contact with the first temperature sensor 11, that is, the temperature data is the current temperature, only the current temperature detected by different temperature sensors is distinguished, and because the distance from the heating assembly 122 and the cooling assembly 132 is different, the temperature of the liquid at different positions is also different, so based on the previous results of using the temperature control device 10, the first temperature sensor 11 and the second temperature sensor 1411 are arranged at the average temperature of the liquid, that is, the temperature of the liquid at this position is the average of the temperature of all liquids, and the current temperature of the liquid measured by the first temperature sensor 11 and the second temperature sensor 1411 is equivalent.

[0055] In another embodiment of the temperature control device 10 provided in the present application, only one temperature sensor is included, that is, after the temperature sensor detects the current temperature of the liquid, the current temperature is transmitted to the heating module 12, the cooling module 13, and the protection controller 14121.

[0056] It is worth noting that the heating controller 121, the cooling controller 131, and the protection controller 14121 are PLC controllers or temperature controllers.

[0057] It should be noted that both PLC (Programmable Logic Controller) and temperature controller are devices used for automation control, but their functions and application scenarios are different. PLC controller has programmability and can be programmed according to specific application requirements to adapt to various complex control tasks, and PLC controller has strong expansibility and can support modular expansion, which can conveniently add input / output modules, communication modules, etc. to adapt to different expansion requirements, but the cost of PLC controller is relatively high; the use of temperature controller is simple, and users only need to set the target temperature, without complex programming, and the cost of temperature controller is generally lower, which is suitable for environments that only need basic temperature control. In addition, the installation of temperature controller is usually simple and does not require complex wiring and debugging. However, the function of temperature controller is single and only used for temperature control, and the expansibility is poor. According to the different advantages and disadvantages of PLC controller or temperature controller, the more suitable controller type is selected according to different requirements, not only using PLC controller or temperature controller, which takes into account the advantages of low cost and high reliability.

[0058] It is worth noting that, as shown in Figures 2 to 4 The temperature control device 10 is also provided with a touch screen 15, which is connected with the heating controller 121 and the cooling controller 131, for setting the target temperature, and the temperature control process is displayed in the form of a curve on the touch screen 15.

[0059] It should be noted that the touch screen 15 determines the temperature control process according to the current temperature of the liquid transmitted by the first temperature sensor 11 to the heating controller 121 and the cooling controller 131, and presents the process in the form of a curve, which can more intuitively reflect the process of the temperature control device 10 maintaining the temperature of the liquid.

[0060] In other embodiments of the present application, a water temperature maintaining system is also provided, which comprises:

[0061] The temperature control device 10 described above;

[0062] A host computer connected with the temperature control device 10, used for controlling the temperature control device 10.

[0063] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there can be a middle component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or there can be a middle component. The terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar expressions used in the description of the present application are for illustrative purposes only and do not indicate the only implementation.

[0064] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, device, product or equipment including a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed or can optionally include other steps or units inherent to the process, method, product or equipment.

[0065] In the present application, unless otherwise explicitly specified and limited, the "on", "under", "above" and "over" of the first feature on the second feature can be that the first feature is in direct contact with the second feature, or the first feature is indirectly in contact with the second feature through an intermediate medium. Moreover, the "on", "above" and "over" of the first feature on the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The "under", "below" and "under" of the first feature on the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0066] Unless otherwise defined, all technical and scientific terms used in the specification of the present application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application solely for the purpose of describing a specific embodiment of the present application, and is not intended to be limiting of the present application. As used in the description of the application, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0067] The technical features of the above embodiments can be combined without changing the basic principles of the present application. In order to make the description simple, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combinations of the technical features do not contradict, they should be considered as within the scope of the present application.

[0068] The above embodiments only express several embodiments of the present application, and the description is specific and detailed, but it should not be understood as limiting the scope of the patent application. It should be pointed out that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the scope of protection of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A temperature control device, characterized by, The temperature control device comprises: a first temperature sensor for detecting a current temperature of liquid in contact with the first temperature sensor; a heating module connected to the first temperature sensor for heating the temperature of the liquid to a target temperature when the current temperature is lower than the target temperature; a cooling module independent of the heating module and connected to the first temperature sensor for cooling the liquid to the target temperature when the current temperature is higher than the target temperature; the heating module comprises a heating controller and a heating assembly, one end of the heating controller is connected to the heating assembly, and the other end of the heating controller is connected to the first temperature sensor, the heating controller is used to receive the current temperature detected by the first temperature sensor, and control the heating power of the heating assembly according to the current temperature and the target temperature, so that the current temperature tends to the target temperature.

2. The temperature control device of claim 1, wherein The heating assembly is a heating coil.

3. The temperature control device of claim 1, wherein, the cooling module comprises a cooling controller and a cooling assembly, one end of the cooling controller is connected to the cooling assembly, and the other end of the cooling controller is connected to the first temperature sensor, the cooling controller is used to receive the current temperature detected by the first temperature sensor, and control the cooling efficiency of the cooling assembly according to the current temperature and the target temperature, so that the current temperature tends to the target temperature.

4. The temperature control device of claim 3, wherein The cooling assembly is a cooling coil.

5. The temperature control device of claim 3, wherein The temperature control device further comprises a temperature protection circuit, the temperature protection circuit comprises a temperature control module, a relay module, and a power supply module, the first end of the relay module is connected to the temperature control module, the second end of the relay module is connected to the power supply module, and the third end of the relay module is connected to the heating assembly, the temperature control module is used to disconnect the second end and the third end of the relay module when the current temperature is greater than a preset protection temperature threshold, and cut off the power supply of the heating assembly by the power supply module.

6. The temperature control device of claim 5, wherein, The temperature control module comprises a second temperature sensor and a protection control unit, the protection control unit is connected to the relay module, and the protection control unit is connected to the second temperature sensor, the protection control unit is used to receive the temperature data of the current liquid detected by the second temperature sensor, and control whether the power supply of the heating module is cut off by the relay module according to the temperature data and the preset protection temperature threshold.

7. The temperature control device of claim 6, wherein The protection control unit comprises a protection controller and a voltage driving module, the relay module comprises a first relay, a contactor, and a second relay connected in sequence, one end of the protection controller is connected to the second temperature sensor, the other end of the protection controller is connected to the first end of the first relay, the voltage driving module is connected to the second end of the first relay, the third end of the first relay is connected to the first end of the contactor, the second end of the contactor is connected to the power supply module, the third end of the contactor is connected to the first end of the second relay, and the second end of the second relay is connected to the heating assembly.

8. The temperature control device of claim 7, wherein, The temperature control device is also provided with a touch screen connected with the heating controller and the cooling controller, for displaying the temperature control process in the form of a curve.

9. A water temperature constant system characterized by, The water temperature constant system comprises: The temperature control device according to any one of claims 1-8; A host computer connected with the temperature control device, for controlling the temperature control device.

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