A temperature control system for a constant temperature bathtub

Abstract

The present invention provides a temperature control system for a constant-temperature bathtub, which includes a plurality of pressure detection points arranged in an array on the inner wall of the side end face and the lower end face of the bathtub. A heating module is arranged between two adjacent pressure detection points. The pressure detection points on each end face of the bathtub form a pressure detection group for that end face. Five groups of pressure detection groups are used to synchronously detect the pressure detection points in the constant-temperature bathtub, and the detected pressure signal data is fed back to the temperature control unit. At the same time, the data of the pressure detection points in each group of pressure detection groups are arranged to construct a pressure source center point. The temperature control unit forms pressure distribution signal data according to the distribution of the received pressure signal data. After comparing the pressure source center point with the pressure distribution signal data, a temperature control start list is established. Taking the pressure detection point closest to the pressure source center point as the center point, the heating modules are networked in a ring to form a temperature control ring, and a plurality of temperature control rings are sequentially formed outward around the center point.

Description

Technical Field

[0001] The present invention belongs to the field of bathtub temperature control, and particularly relates to a temperature control system for a constant temperature bathtub. Background Art

[0002] With the continuous development of science and technology, constant temperature bathtubs have been widely used in fields such as laboratories, hospitals, and industrial production. A constant temperature bathtub is a device that can control temperature and can heat or cool substances at a constant temperature to meet the needs of experiments or production. However, due to some drawbacks of traditional constant temperature bathtub temperature control systems, such as large temperature fluctuations, low control accuracy, high energy consumption, etc., there is an urgent need for a more advanced temperature control system to solve these problems.

[0003] Currently, traditional constant temperature bathtub temperature control systems mainly use the PID control algorithm to achieve temperature control. The PID control algorithm is a classic control algorithm that continuously adjusts the output of the controller to make the actual output value of the system as close as possible to the set value. However, due to the limitations of the PID control algorithm itself, the traditional constant temperature bathtub temperature control system has the following main drawbacks.

[0004] The traditional constant temperature bathtub temperature control system has the problem of large temperature fluctuations. Since the PID control algorithm has poor dynamic response ability to the system, when affected by external disturbances, it is easy to cause temperature fluctuations in the system, seriously affecting the stability and reliability of experiments or production. The control accuracy of the traditional constant temperature bathtub temperature control system is relatively low. The PID control algorithm often needs to continuously adjust the output of the controller during the temperature control process, which requires continuous correction of the system, resulting in low control accuracy and unable to meet the experimental or production requirements with high temperature control requirements. Therefore, there is an urgent need for an integrated overall control of the bathtub temperature control system. Summary of the Invention

[0005] The present invention proposes a temperature control system for a constant temperature bathtub. This temperature control system for the constant temperature bathtub solves the technical problem of uneven temperature distribution inside the constant temperature bathtub. By setting pressure detection points and heating modules, the system can real-time monitor the pressure distribution inside the constant temperature bathtub, construct pressure distribution signal data based on the pressure signal data, thereby establishing a temperature control start list and forming a temperature control ring through circular networking to achieve precise control of the temperature inside the constant temperature bathtub. This system can also timely turn off the heating module when detecting temperature fluctuations to ensure the stability of the temperature inside the constant temperature bathtub. This technology solves the problems such as poor use effect and energy waste caused by uneven temperature inside the constant temperature bathtub, and improves the use experience and energy utilization efficiency of the constant temperature bathtub.

[0006] The technical solution of the present invention is realized as follows: A temperature control system for a constant temperature bathtub includes a plurality of pressure detection points arranged in an array on the inner wall of the side end face and the inner wall of the lower end face of the bathtub. A heating module is arranged between two adjacent pressure detection points. The pressure detection points on each end face of the bathtub form a pressure detection group for the end face. The pressure detection points in the constant temperature bathtub are detected synchronously by 5 groups of pressure detection groups, and the detected pressure signal data is fed back to the temperature control unit. At the same time, the pressure detection point data in each group of pressure detection groups is arranged to construct a pressure source center point. The temperature control unit forms pressure distribution signal data according to the distribution of the received pressure signal data. After comparing the pressure source center point with the pressure distribution signal data, a temperature control start list is established. The heating modules are circularly networked outward with the pressure detection point closest to the pressure source center point as the center point to form a temperature control ring. A number of temperature control rings are formed successively outward around the center point. The temperature outside the temperature control ring towards the center point increases successively. A fluctuation threshold of the pressure source center point is set in each group of pressure detection groups. When it is detected that the fluctuation threshold exceeds the set threshold, the heating module is turned off until the pressure source center of the pressure detection group is re-determined and a temperature control ring is re-established for heating.

[0007] The main difference between the temperature control system of this constant temperature bathtub and the prior art lies in its intelligent control solution that combines pressure detection points, heating modules, and temperature control units to achieve precise control and uniform distribution of the internal temperature of the constant temperature bathtub. Compared with the traditional temperature control system of a constant temperature bathtub, this technical solution has the following significant difference points:

[0008] The system realizes real-time monitoring and precise control of the internal temperature of the constant temperature bathtub by arranging pressure detection points and heating modules in an array on the inner wall of the side end face and the inner wall of the lower end face of the bathtub. Compared with the traditional constant temperature bathtub control system, it is more intelligent and efficient. By arranging the pressure detection point data in each group of pressure detection groups, a pressure source center point is constructed, and combined with the distribution of the pressure signal data to form pressure distribution signal data, thereby establishing a temperature control start list, and circularly networking the heating modules to form a temperature control ring. This enables the system to more accurately determine the temperature distribution and achieve more precise temperature control.

[0009] The system sets the fluctuation threshold of the pressure source center point in each group of pressure detection groups. When it detects that the fluctuation threshold exceeds the set threshold, it turns off the heating module until the pressure source center is re-determined and then re-establishes the temperature control ring for heating. This function can effectively avoid the problems of energy waste and temperature instability caused by excessive temperature fluctuations. The system forms a temperature control ring by networking the heating modules in a circular pattern outward with the pressure detection point closest to the pressure source center point as the center point, and several temperature control rings are formed in sequence outward around the center point. The temperature of the temperature control rings increases sequentially towards the outside of the center point. This circular networking design enables the system to more efficiently achieve uniform distribution and precise control of the temperature inside the constant temperature bathtub.

[0010] As a preferred embodiment, heat-resistant materials are laid on the outer end faces around the bathtub. The heat-resistant materials are preferably aluminum strips, and the positions of the heating modules are fixed by the aluminum strips.

[0011] As a preferred embodiment, a temperature display control panel is provided on the upper end face of one side wall of the bathtub. Temperature is displayed through the temperature control panel, and a temperature range is set through the temperature control panel. The temperature control panel is connected to the heating module to control the heating module to keep the water temperature in the bathtub within the temperature range.

[0012] As a preferred embodiment, the heating module uses a carbon fiber heating plate. A fiber heating cable is arranged in the carbon fiber heating plate. The carbon fiber heating cable is composed of several heating wires with the same resistance value connected in parallel, and the carbon fiber heating cable is powered by a 220V power supply.

[0013] As a preferred embodiment, a trigger threshold is set for the bottom pressure detection group of the bathtub. When the bottom pressure detection group detects that the pressure exceeds the set threshold, a trigger signal is sent to the 220V power supply, and the 220V power supply starts to supply energy to the heating module.

[0014] As a preferred embodiment, liquid level monitoring contacts are provided on the side end faces of the inner wall of the bathtub. The liquid level monitoring points are linked with the heating module. When the water level exceeds the set liquid level monitoring points, a trigger signal is sent to the heating module, and the heating module can only start heating after receiving the trigger signal.

[0015] After adopting the above technical solutions, the beneficial effects of the present invention are as follows: Through the intelligent pressure detection and temperature control design, this technical solution realizes the precise control and uniform distribution of the temperature inside the constant temperature bathtub, and has higher temperature control accuracy and energy efficiency performance compared with traditional technologies. Therefore, this technical solution can significantly improve the use experience and energy utilization efficiency of the constant temperature bathtub. At the same time, the circular networking temperature control ring design of the system also helps to reduce temperature fluctuations and avoid energy waste caused by temperature instability, thereby further improving the overall use effect and energy utilization efficiency. Brief Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 It is a system block diagram of the present invention. Detailed Embodiments

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0019] Embodiment:

[0020] As Figure 1 shown, a temperature control system for a constant temperature bathtub includes a plurality of pressure detection points arranged in an array on the inner wall of the side end face and the lower end face of the bathtub. A heating module is arranged between adjacent two pressure detection points. The pressure detection points on each end face of the bathtub form a pressure detection group on that end face. The pressure detection points in the constant temperature bathtub are detected synchronously by 5 groups of pressure detection groups, and the detected pressure signal data is fed back to the temperature control unit. At the same time, the data of the pressure detection points in each group of pressure detection groups are arranged to construct a pressure source center point. The temperature control unit forms pressure distribution signal data according to the distribution of the received pressure signal data. After comparing the pressure source center point with the pressure distribution signal data, a temperature control start list is established. Taking the pressure detection point closest to the pressure source center point as the center point, the heating modules are networked in a ring to form a temperature control ring. A number of temperature control rings are formed successively outward around the center point. The temperature outside the temperature control ring towards the center point increases successively. A fluctuation threshold of the pressure source center point is set in each group of pressure detection groups. When it is detected that the fluctuation threshold exceeds the set threshold, the heating module is turned off until the pressure source center of the pressure detection group is re-determined and a temperature control ring is re-established for heating.

[0021] The working principle of the temperature control system of this constant-temperature bathtub is based on intelligent pressure detection and temperature control design. First, the system arranges multiple pressure detection points in an array on the inner wall of the side end face and the inner wall of the lower end face of the bathtub, and sets heating modules between adjacent two pressure detection points to form pressure detection groups. The pressure detection points in the constant-temperature bathtub are detected synchronously by 5 groups of pressure detection groups, and the detected pressure signal data is fed back to the temperature control unit.

[0022] After the temperature control unit receives the pressure signal data, the system simultaneously arranges the pressure detection point data in each group of pressure detection groups to construct a pressure source center point, and forms pressure distribution signal data according to the distribution of the received pressure signal data. Then, after comparing the pressure source center point with the pressure distribution signal data, a temperature control start list is established.

[0023] Taking the pressure detection point closest to the pressure source center point as the center point, the system forms a temperature control ring by networking the heating modules in a ring shape outward. Several temperature control rings are formed in sequence outward around the center point, and the temperature outside the temperature control rings towards the center point increases in turn. A fluctuation threshold of the pressure source center point is set in each group of pressure detection groups respectively. When it is detected that the fluctuation threshold exceeds the set threshold, the heating module is turned off until the pressure source center is re-determined and a temperature control ring is re-established for heating.

[0024] The outer end faces around the bathtub are covered with heat-resistant materials, and the heat-resistant materials are preferably aluminum strips. The positions of the heating modules are fixed by the aluminum strips. In the traditional technology, the fixing method of the outer end faces around the bathtub may not be firm enough, and it is easy to loosen due to temperature changes and humidity, affecting the fixing and performance of the heating modules. However, using aluminum strips as heat-resistant materials for fixing can effectively improve the stability and heat resistance of the system, ensure the firm position of the heating modules, and are not easily affected by the external environment. Aluminum strips have good thermal conductivity, and can conduct the heat generated by the heating modules to the outer end face of the bathtub more effectively, improving the heating efficiency and making the temperature control more accurate and efficient. Aluminum strips have good corrosion resistance and durability, can maintain stable performance for a long time, are not easy to rust or damage in a humid environment, and extend the service life of the system. Using aluminum strips as heat-resistant materials for the outer end faces around the bathtub and fixing the positions of the heating modules by the aluminum strips can improve the stability, heat resistance, thermal conductivity and durability of the system, and at the same time reduce the installation cost. It is an innovative design based on the existing technology, which is beneficial to improving the overall performance and reliability of the temperature control system of the constant-temperature bathtub.

[0025] On the upper end surface of one side wall of the bathtub, there is a temperature display control panel. Temperature is displayed through the temperature control panel, and a temperature range is set through the temperature control panel. The temperature control panel is connected to the heating module to control the heating module to keep the water temperature in the bathtub within the set temperature range. Compared with the prior art, the upper end surface of one side wall of the bathtub is provided with a temperature display control panel, and temperature is displayed and a temperature range is set through this panel, which has the following significant differences and functions:

[0026] In the traditional technology, temperature control usually needs to be carried out through external devices or operation panels, with high operation complexity and poor user experience. By setting a temperature display control panel on the upper end surface of one side wall of the bathtub, temperature control becomes more intuitive and convenient, improving the user's operation experience and comfort. By setting a temperature range through the temperature display control panel, users can more accurately control the water temperature in the bathtub to meet different needs. This design can improve the accuracy and flexibility of temperature setting, enabling users to enjoy the bathtub usage experience more personalized. Connecting the temperature control panel to the heating module realizes the integrated design of the temperature control system, simplifies the system structure, reduces external cables and connectors, improves the reliability and stability of the system, and at the same time reduces the maintenance cost. The temperature display control panel can display the water temperature in the bathtub in real time and control the heating module according to the temperature range set by the user to realize the real-time monitoring and adjustment of the water temperature. This design can ensure that the water temperature in the bathtub always remains within the range expected by the user, improving the comfort and safety of use. By setting a temperature display control panel on the upper end surface of one side wall of the bathtub and connecting it to the heating module, the user-friendliness, temperature setting accuracy and integration degree of the system can be improved, and at the same time, the real-time monitoring and adjustment of the water temperature in the bathtub can be realized. It is an innovative design based on the prior art, which is beneficial to improving the overall performance and user experience of the temperature control system of the constant temperature bathtub.

[0027] The heating module uses a carbon fiber heating plate. A fiber heating cable is arranged in the carbon fiber heating plate. The carbon fiber heating cable is composed of a number of heating wires with the same resistance value connected in parallel. The carbon fiber heating cable is powered by a 220V power supply. Compared with the prior art, the design of using the carbon fiber heating plate and the fiber heating cable as the heating module has the following significant differences and effects: The carbon fiber heating plate is powered by the carbon fiber heating cable. Compared with traditional heating elements, such as resistance wires or metal heaters, the carbon fiber heating plate has a higher energy conversion efficiency, can heat more quickly and evenly, and reduces energy waste. The carbon fiber heating plate is powered by a low-voltage 220V power supply. Compared with traditional heating elements powered by high voltage, it is safer and more reliable, reducing the risks of electric shock and fire. A fiber heating cable is arranged in the carbon fiber heating plate. Through the layout of the fiber heating cable, more uniform heating can be achieved, avoiding the problems of too high or too low local temperature of traditional heating elements, and improving the uniformity of the water temperature in the bathtub.

[0028] The carbon fiber heating cable is composed of a number of heating wires with the same resistance value connected in parallel. This design reduces the wear between the heating wires, extends the service life, and reduces the equipment maintenance cost. Using the carbon fiber heating plate and the fiber heating cable as the heating module can improve the energy utilization efficiency, safety, and heating uniformity, while reducing the equipment maintenance cost. It is an innovative design based on the prior art, which is beneficial to improving the overall performance and reliability of the temperature control system of the constant temperature bathtub.

[0029] The bottom pressure detection group of the bathtub sets a trigger threshold. When the bottom pressure detection group detects that the pressure exceeds the set threshold, it sends a trigger signal to the 220V power supply, and the 220V power supply starts to supply energy to the heating module. Compared with the prior art, this passage describes a new trigger mechanism between the bottom pressure detection group of the bathtub and the 220V power supply. In traditional bathtubs, the heating module is usually started and stopped manually by the user or at a preset time. However, this new design uses the bottom pressure detection group to automatically detect the water pressure in the bathtub. Once the water pressure exceeds the set threshold, a trigger signal will be sent to the 220V power supply, thereby starting the heating module to supply energy.

[0030] The difference of this new design lies in its automatic trigger mechanism. By the bottom pressure detection group to monitor the water pressure situation in real time, it can control the start of the heating module more intelligently, avoiding the trouble of manual operation by the user, and improving safety and comfort. The function of this setting is to reduce the operation cost and time of the user on the basis of ensuring the constant water temperature of the bathtub, and improve the use experience. Therefore, this automatic trigger mechanism allows users to enjoy a comfortable bathtub experience more conveniently, while also reducing energy waste.

[0031] A liquid level monitoring contact is provided on the side end surface of the inner wall of the bathtub. The liquid level monitoring point is linked with the heating module. When the water level exceeds the set liquid level monitoring point, a trigger signal is sent to the heating module, and the heating module can only start heating after receiving the trigger signal. Compared with the prior art, this passage describes a new mechanism in which the liquid level monitoring contact provided on the side end surface of the inner wall of the bathtub is linked with the heating module. The traditional bathtub heating module usually heats according to a preset temperature or manual operation. However, this new design monitors the water level situation in real time through the liquid level monitoring contact. Once the water level exceeds the set monitoring point, a trigger signal will be sent to the heating module to start heating.

[0032] The difference of this new design lies in the linkage between its water level monitoring contact and the heating module, enabling the heating module to control the heating according to the actual water level situation, rather than simply relying on the preset temperature. This can more intelligently control the start of the heating module, avoid overheating or insufficient water temperature, and improve the use safety and comfort. The function of this setting is to accurately control the start and stop of the heating module based on the actual water level situation while ensuring the constant water temperature of the bathtub, improving the heating efficiency and reducing energy waste. Therefore, the design of the linkage between the automatic liquid level monitoring contact and the heating module allows users to more conveniently enjoy a comfortable bathtub experience, while also improving safety and energy-saving effects.

[0033] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A temperature control system for a constant temperature bathtub, characterized in that: The inner wall of the side end face and the inner wall of the lower end face of the bathtub are arrayed with a plurality of pressure detection points, a heating module is arranged between two adjacent pressure detection points, and the pressure detection points of each end face of the bathtub form a pressure detection group of the end face, and the pressure detection points in the constant temperature bathtub are synchronously detected by 5 groups of pressure detection groups, and the detected pressure signal data are fed back to the temperature control unit, and the pressure detection point data in each group of pressure detection groups are arranged at the same time to construct the center point of the pressure source, and the temperature control unit forms the pressure distribution signal data according to the distribution of the received pressure signal data, and after checking the center point of the pressure source with the pressure distribution signal data, a temperature control start list is established, and the heating modules are annularly networked outwardly to form a temperature control ring with the pressure detection point closest to the center point of the pressure source as the center point of the circle as the center point of the circle, and a plurality of temperature control rings are formed outwardly around the center point of the circle, and the temperature of the temperature control ring increases in sequence toward the outside of the center point of the circle, and a fluctuation threshold of the center point of the pressure source is set in each group of pressure detection groups, and when it is detected that the fluctuation threshold exceeds the set threshold, the heating module is turned off until the pressure detection group re-determines the center of the pressure source and then re-establishes the temperature control ring for heating; A temperature display control panel is provided on the upper end surface of one side wall of the bathtub, and the temperature is displayed and the temperature range is set through the temperature control panel. The temperature control panel is connected to the heating module to control the heating module to control the water temperature in the bathtub within the temperature range; The bottom pressure detection group of the bathtub is set with a trigger threshold. When the bottom pressure detection group detects that the pressure exceeds the set threshold, a trigger signal is sent to the 220V power supply, and the 220V power supply starts to supply energy to the heating module.

2. A temperature control system for a constant temperature bathtub as claimed in claim 1, characterized in that: The outer end surfaces around the bathtub are covered with a heat-resistant material, and the heat-resistant material is an aluminum strip, and the position of the heating module is fixed by the aluminum strip.

3. A temperature control system for a constant temperature bathtub as claimed in claim 1, characterized in that: The heating module adopts a carbon fiber heating plate, in which a fiber heating cable is arranged. The fiber heating cable is composed of a plurality of heating wires with the same resistance connected in parallel, and the fiber heating cable is powered by a 220V power supply.

4. A temperature control system for a constant temperature bathtub as claimed in claim 1, characterized in that: A liquid level monitoring contact is arranged on the side end surface of the inner wall of the bathtub, and the liquid level monitoring contact is linked with the heating module. When the water level exceeds the set liquid level monitoring contact, a trigger signal is sent to the heating module. The heating module can only heat after receiving the trigger signal.

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