Cross-environment-temperature constant-temperature box and control method and device for cross-environment-temperature constant-temperature box

Abstract

The invention relates to the technical field of temperature and humidity control, and discloses a trans-ambient temperature constant-temperature box, which comprises a temperature and humidity adjusting device arranged in an inner cavity of the constant-temperature box and comprising a refrigeration module, a heating module, a humidification module and a dehumidification module which can be independently controlled; wherein all the modules share a fan, and the heating module, the refrigerating module, the dehumidifying module and the humidifying module are sequentially arranged in the air outlet direction of the air duct; the controller is configured to control the working state of each module of the temperature and humidity adjusting device based on the environment temperature and humidity in the constant temperature box and set parameters; wherein the heating module and the refrigerating module do not work at the same time, and the humidifying module and the dehumidifying module do not work at the same time. According to the cross-environment-temperature constant-temperature box, control over temperature and humidity is relatively independent, and modules with mutually exclusive functions do not operate at the same time. Therefore, high energy consumption during balanced temperature and humidity control is avoided. The invention further discloses a control method and device for the trans-ambient temperature constant temperature box.

Description

Technical Field

[0001] This application relates to the field of temperature and humidity control technology, such as a trans-ambient temperature constant temperature chamber, a control method and device for the trans-ambient temperature constant temperature chamber. Background Technology

[0002] In applications involving cross-ambient temperature (CA) or cross-ambient temperature and humidity (CA) control, high-precision and stable temperature and humidity control is achieved through balanced temperature and humidity control methods, such as incubators and test chambers. In these environments, high precision is required for parameters like temperature fluctuation (control accuracy ±0.1℃), and the equipment operates continuously 24 / 7, with users unable to independently select cooling or heating modes. Under uncontrolled external conditions, even with built-in ambient temperature sensors, the limited accuracy prevents the equipment from autonomously selecting cooling or heating modes. While a cooling system designed in a constantly on mode can achieve the minimum temperature and maximum cooling capacity requirements, and heating compensation is used when higher temperatures are needed, this approach solves the temperature accuracy and mode selection issues but consumes extremely high energy.

[0003] In temperature and humidity control scenarios spanning multiple ambient temperatures and humidity levels, equipment is required to control humidity levels above, below, or equal to the ambient temperature / humidity. This equipment needs to have cooling, heating, humidification, and dehumidification functions, with high precision required for temperature and humidity control, such as constant temperature and humidity chambers. This scenario typically employs a simple refrigeration system (single evaporator) that simultaneously cools and dehumidifies. This refrigeration system is often designed with fixed cooling capacity and temperature to achieve the product's designed minimum temperature and maximum dehumidification capacity. When higher temperatures and humidity are required, heating elements and a humidification device (using a built-in water pan and heating element) are used to balance the temperature and humidity, thus stabilizing the desired values. This simultaneous cooling, heating, dehumidification, and humidification in this scenario results in extremely high energy consumption. Furthermore, the heating device needs to operate under high load for extended periods, especially under high humidity conditions, posing significant safety hazards.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0005] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0006] This disclosure provides a trans-annular temperature constant temperature chamber, a control method and apparatus for the trans-annular temperature constant temperature chamber, to solve the problem of high energy consumption.

[0007] In some embodiments, the trans-annular temperature control chamber includes: The temperature and humidity control device is located inside the constant temperature chamber and includes independently controllable cooling, heating, humidifying, and dehumidifying modules. Each module shares a fan, and the heating, cooling, dehumidifying, and humidifying modules are arranged sequentially along the air outlet direction of the air duct. The controller is configured to control the operating status of each module of the temperature and humidity control device based on the ambient temperature and humidity inside the constant temperature chamber and set parameters. The heating and cooling modules do not operate simultaneously, nor do the humidifying and dehumidifying modules operate concurrently.

[0008] In some embodiments, the method includes: When the constant temperature chamber is powered on or the set parameters are updated, the target power of the temperature and humidity control device and the corresponding target module are determined based on the real-time environmental parameters and set parameters inside the chamber; the target module is controlled to operate at the corresponding target power; wherein, the target module includes a cooling module or a heating module, and / or, the target module includes a humidification module or a dehumidification module; the target power is the sum of the output power and the initial power, the output power is calculated based on the real-time environmental parameters and set parameters, the initial power is the intermediate value of the power output module, and the actual output power corresponding to the intermediate value is zero; the cooling module and the heating module share the first power output module, and the humidification module and the dehumidification module share the second power output module.

[0009] In some embodiments, the apparatus includes a processor and a memory storing program instructions, the processor being configured to, when executing the program instructions, perform the aforementioned control method for a trans-annular temperature control chamber.

[0010] The cross-ring temperature constant temperature chamber, control method and device for the cross-ring temperature constant temperature chamber provided in this disclosure can achieve the following technical effects: The cooling, heating, humidifying, and dehumidifying modules are all independently controlled but share a common fan. This allows for relatively independent temperature and humidity control, and prevents mutually exclusive modules from operating simultaneously. This avoids the high energy consumption associated with balanced temperature and humidity control systems.

[0011] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0012] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein: Figure 1 This is a schematic diagram of a trans-annular temperature constant temperature chamber provided in an embodiment of this disclosure; Figure 2 This is a partially enlarged schematic diagram of the trans-annular temperature constant temperature chamber provided in this embodiment of the present disclosure at point A; Figure 3 This is a schematic diagram showing the correspondence between the output power and the target power of the power output module provided in this embodiment of the disclosure; Figure 4 This is a schematic diagram of a control method for a cross-temperature constant temperature chamber provided in an embodiment of this disclosure; Figure 5 This is a schematic diagram of another control method for a cross-ring temperature constant chamber provided in an embodiment of this disclosure; Figure 6 This is a schematic diagram of another control method for a cross-ring temperature constant chamber provided in an embodiment of this disclosure; Figure 7 This is a schematic diagram of a control device for a cross-temperature constant temperature chamber provided in an embodiment of this disclosure; Figure 8 This is a schematic diagram of another trans-annular temperature constant temperature chamber provided in an embodiment of this disclosure. Detailed Implementation

[0013] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0014] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0015] Unless otherwise stated, the term "multiple" means two or more.

[0016] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0017] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0018] The term "correspondence" can refer to an association or binding relationship. The correspondence between A and B means that there is an association or binding relationship between A and B.

[0019] Combination Figure 1 and Figure 2 As shown, the cross-ambient temperature control chamber includes a temperature and humidity regulating device and a controller 20. The temperature and humidity regulating device is located inside the chamber and includes independently controllable cooling module 12, heating module 13, humidifying module 14, and dehumidifying module 15, as well as a fan 11. All modules share the fan 11, and the heating module 12, cooling module 13, dehumidifying module 14, and humidifying module 15 are arranged sequentially along the air outlet direction of the air duct. The controller 20 is configured to control the operating status of each module of the temperature and humidity regulating device based on the ambient temperature and humidity inside the chamber and set parameters. During the operation of the cross-ambient temperature control chamber, the heating module and cooling module do not operate simultaneously, nor do the humidifying module and dehumidifying module operate simultaneously.

[0020] The trans-annular temperature control chamber is also equipped with sensors 30, including temperature and humidity sensors, for real-time monitoring of the temperature and humidity inside the chamber. The controller 20 controls each module based on the detection values ​​from the sensors 30.

[0021] Each module is sequentially arranged in the air duct and shares a common fan. To minimize the impact of the dehumidification module on temperature during dehumidification, the dehumidification area of ​​the dehumidification module is much smaller than the cooling area of ​​the refrigeration module, and the dehumidification temperature of the dehumidification module is much lower than the cooling temperature of the refrigeration module. This ensures that the sensible heat impact of the dehumidification module at its maximum dehumidification capacity on the air inside the chamber is less than 10% or less of the sensible heat impact of the refrigeration module. Thus, the effective dehumidification area of ​​the dehumidification module is significantly reduced relative to the cooling area, and the low dehumidification temperature (below the dew point temperature) concentrates the cooling capacity in condensation dehumidification. When air flows through the dehumidification module, the airflow layer in contact with the module is rapidly cooled below the dew point temperature, and moisture condenses (latent heat takes effect). Other airflows in the airflow quickly pass over the dehumidification module, without sufficient heat exchange with its surface, resulting in almost no temperature change in this part of the airflow (i.e., very small sensible heat change). In this way, the impact of the dehumidification module on the temperature inside the chamber is minimized.

[0022] The humidification module may also affect the internal temperature of the chamber during humidification. To reduce this effect, the humidification efficiency can be adjusted to delay its impact on temperature. Furthermore, in this embodiment, the humidification module is located at the air outlet to ensure rapid diffusion of humidifying steam or water mist, thereby improving humidification utilization. In this way, by delaying the humidification efficiency and improving humidification utilization, the impact of humidification on temperature is minimized.

[0023] Furthermore, the heating, cooling, dehumidifying, and warming modules all employ stepless adjustment to ensure minimal temperature and humidity fluctuations during temperature and humidity control, thus maintaining a relatively constant temperature and humidity level. This avoids problems such as excessively large temperature and humidity response amplitudes, leading to unstable or fluctuating temperature and humidity control, frequent mode switching, and an inability to maintain constant temperature and humidity.

[0024] In this embodiment, the cooling module, heating module, humidification module, and dehumidification module are all independently controlled but share a common fan. This ensures relatively independent temperature and humidity control, and prevents mutually exclusive modules from operating simultaneously (i.e., when the heating module is working, the cooling module is not working; or when the cooling module is working, the heating module is not working; when the humidification module is working, the dehumidification module is not working; or when the dehumidification module is working, the humidification module is not working). This avoids the high energy consumption associated with balanced temperature and humidity control.

[0025] Optionally, the dehumidification module 14 includes a dehumidifier 141 and an airflow regulating hood 142. The dehumidifier 141 is configured, under the control of the controller 20, to keep its surface temperature below the current dew point temperature inside the constant temperature chamber when the dehumidification module is operating. The airflow regulating hood 142 covers the dehumidifier 141; the airflow regulating hood 142 has an opening 143 to allow the dehumidifier 141 to contact the airflow in the duct for dehumidification.

[0026] Here, to further reduce the impact of dehumidification on temperature, the airflow through the dehumidification module is limited. Specifically, an airflow regulating hood is installed over the dehumidifier in the dehumidification module. This hood has openings to allow the airflow passing through the openings to contact the dehumidifier surface for dehumidification. Understandably, the airflow regulating hood reduces the airflow in contact with the dehumidifier, further minimizing the sensible heat effect during dehumidification (i.e., reducing the impact on temperature). Furthermore, the dehumidifier can be a semiconductor refrigeration dehumidifier, a heat exchanger for compressor-based dehumidification, an adsorption dehumidification membrane, etc.

[0027] Optionally, the opening 143 of the air volume regulating hood 142 is adjustable in area; and one end of the air volume regulating hood is provided with a drain outlet 144 to drain condensate.

[0028] Here, the opening area of ​​the airflow regulating hood is adjustable, for example, based on the dehumidification airflow or whether the real-time ambient humidity is close to the set humidity. For instance, at low airflow, the opening area is reduced; at high airflow, the opening area is increased. At low airflow, the opening area is reduced because the airflow through the airflow regulating hood is small and the velocity is slow, resulting in a longer contact time with the dehumidifier. This ensures sufficient time for the airflow to be cooled below the dew point temperature, guaranteeing sufficient latent heat exchange for effective condensation. Because the airflow is small, the total amount of air cooled is small, thus having minimal impact on the sensible heat inside the chamber. At high airflow, the opening area is increased because the airflow through the airflow regulating hood is large and the velocity is fast, resulting in a shorter contact time with the dehumidifier but a larger airflow. Although only a portion of the water vapor condenses (the degree of cooling per unit volume of air is low), the large airflow still achieves dehumidification with minimal impact on the temperature inside the chamber. In addition, a drain outlet is provided at one end of the airflow regulating cover to drain the cooling water generated by condensation in a timely manner.

[0029] Optionally, the heating module can be a voltage- or PWM-controlled electric heater or a semiconductor heater. The cooling module can be a semiconductor cooling module, a compressor cooling module, or a Stirling cooling module; the humidification module can be a steam humidifier, an atomizing humidifier, or an electrode humidifier.

[0030] Combination Figure 3 As shown, this disclosure provides a control method for a trans-ambient temperature control chamber, including: S101, when the constant temperature chamber is powered on or the set parameters are updated, the constant temperature chamber determines the target power of the temperature and humidity control device and the corresponding target module based on the real-time environmental parameters and set parameters inside the chamber.

[0031] The target module includes either a cooling module or a heating module, and / or, a humidification module or a dehumidification module. The target power is the sum of the output power and the initial power. The output power is calculated based on real-time environmental parameters and set parameters. The initial power is the median value of the output power of the power output module; the actual output power corresponding to this median value is zero. The cooling and heating modules share a first power output module, and the humidification and dehumidification modules share a second power output module.

[0032] S102, the constant temperature chamber control target module operates according to the corresponding target power.

[0033] Here, the real-time environmental parameters inside the chamber include real-time temperature and real-time humidity, and the set parameters include set temperature and set humidity. In this embodiment, the cooling module and heating module, and the humidifying module and dehumidifying module are independent of each other in hardware structure. However, in software control, the cooling module and heating module share a first power output module, and the humidifying module and dehumidifying module share a second power output module. The initial power of the first power output module / second power output module is the median value of the corresponding module's output power, and the actual output power corresponding to this median value is zero. The minimum value of the power output module is the lower limit of the power output. The maximum value is the upper limit of the power output. Therefore, for the first power output module, if cooling is defined as negative heating, the output power between the lower limit and the median value corresponds to the power of the cooling module. The output power between the median value and the upper limit of the power output corresponds to the power of the heating module. Conversely, if heating is defined as negative cooling, the output power between the lower limit and the median value corresponds to the power of the heating module, and the output power between the median value and the upper limit of the power output corresponds to the power of the cooling module. Similarly, the output power of the second power output module of the humidification module and the correspondence between the humidification module and the dehumidification module can be determined.

[0034] Thus, when the real-time temperature is greater than / less than the set temperature (or the absolute value of the difference between the two is greater than the fluctuation threshold, which is set based on the control accuracy of the constant temperature chamber, such as a temperature fluctuation threshold of 0.1℃), the first power output module calculates the output power to obtain the target power (i.e., the target heating amount, defined as negative heating when cooling is defined). Based on the target power, the target module to be executed can be determined. If the target power is between the middle value and the upper limit of the power output, the target module is the heating module; otherwise, it is the cooling module. Similarly, when the real-time humidity is greater than / less than the humidity temperature (or the absolute value of the difference between the two is greater than the fluctuation threshold, which is set based on the control accuracy of the constant temperature chamber), the second power output module calculates the output power to obtain the target power (i.e., the target dehumidification amount, defined as negative dehumidification when humidification is defined). Based on the target power, the target module to be executed can be determined. If the target power is between the middle value and the upper limit of the power output, the target module is the dehumidification module; otherwise, it is the humidification module. Then, the real-time environmental parameters and set parameters inside the chamber are periodically compared to determine the target power, and based on the target power, it is determined whether to keep the currently running module or switch to another module. In this way, mutually exclusive modules will not run simultaneously, which helps reduce energy consumption.

[0035] In existing technologies, the operating module is determined based on ambient temperature, setpoint, and current value, and the power is calculated and adjusted according to the corresponding algorithm within the operating module. Taking temperature regulation as an example, it is necessary to determine whether a cooling or heating module is operating, and then perform power calculations based on either a cooling power algorithm or a heating power algorithm. That is, when switching operating modes, the seamless transition of the algorithm to temperature must be handled. For example, when a PID algorithm switches from cooling to heating, it needs to prevent integral saturation or reset the integral term; otherwise, it will cause huge control overshoot. However, the embodiments of this disclosure integrate mode switching and temperature / humidity control algorithms. For both temperature and humidity regulation, only one algorithm runs. That is, whether heating or cooling, the same algorithm is used for calculation. This eliminates the problem of needing to switch algorithms when switching modes and algorithms, greatly simplifying the control logic and improving execution efficiency.

[0036] The control method for a cross-temperature constant temperature chamber provided in this disclosure determines the target module and corresponding target power of the temperature and humidity regulating device based on real-time environmental parameters and set parameters within the chamber. Specifically, the cooling and heating modules share a first power output module, while the humidification and dehumidification modules share a second power output module. Thus, only one algorithm runs for both temperature and humidity regulation, greatly simplifying the control logic and improving execution efficiency. Furthermore, the non-simultaneous operation of mutually exclusive modules effectively reduces energy consumption.

[0037] Optionally, the power output module in step S101 is obtained in the following way: The power output control of the cooling module and the heating module is integrated into the first power output module; wherein, the minimum value of the first power output module corresponds to 100% of the actual cooling output power, and the maximum value corresponds to 100% of the actual heating output power.

[0038] The power output control of the dehumidification module and the humidification module is integrated into the second power output module; wherein, the minimum value of the second power output module corresponds to 100% of the actual output power of humidification, and the maximum value corresponds to 100% of the actual output power of dehumidification.

[0039] Here, the minimum value of the first power output module corresponds to 100% of the actual output power of the cooling module, and the maximum value corresponds to 100% of the actual output power of the heating module. Let the minimum value of the first power output module be 0, the maximum value be 100, and the intermediate value be 50. Then, the target power for the heating module is the sum of the initial power and the output power, and the target power for the cooling module is the sum of the initial power and the negative output power.

[0040] For example, in combination Figure 3As shown in the diagram (the left axis represents the output power of the power output module, and the right axis represents the target power), at power-on, the current ambient temperature Pv = 25℃, and the set temperature Sv = 37℃. Since Sv - Pv > 0, the target module is a heating module, and the calculated output power is P1. The target power P = P1 + P0 ≥ 50, where P0 is the initial power. The linearly corresponding first power output module (right axis) has a positive value, indicating it is actually in heating mode. Furthermore, the larger the difference between Pv and Sv, the larger P1, and the larger P, resulting in a greater heating capacity. At power-on, the current ambient temperature Pv = 25℃, and the set temperature Sv = 10℃. Since Sv - Pv < 0, the target module is a cooling module, and the calculated output power is -P1 (i.e., P1 multiplied by -1, taking the negative value). -P1 < 0, and the target power P = -P1 + P0 < 50. The linearly corresponding power output module (right axis) has a negative value, indicating it is actually in cooling mode. Furthermore, the larger the difference between Pv and Sv, the larger P1 is, and the smaller -P1+P0=P is, the greater the corresponding cooling capacity.

[0041] Similarly, the minimum value of the second power output module corresponds to 100% of the actual output power of the humidification module, and the maximum value corresponds to 100% of the actual output power of the dehumidification module. Let the minimum value of the second power output module be 0, the maximum value be 100, and the intermediate value be 50. Then, the target power for the dehumidification module is the sum of the initial power and the output power, and the target power for the humidification module is the sum of the initial power and the negative output power.

[0042] In this way, the cooling and heating modules, as well as the dehumidifying and humidifying modules, are each controlled by a unified positive and negative power output device. This means the first / second power output module doesn't need to worry about cooling or heating, dehumidifying or humidifying; it only needs to output a unified power. The actual state of each module is controlled based on the positive or negative value of the power output. This helps save computing resources and results in shorter execution paths and higher efficiency.

[0043] Combination Figure 4 As shown, this disclosure provides another control method for a trans-ambient temperature control chamber, including: S101, when the constant temperature chamber is powered on or the set parameters are updated, the constant temperature chamber determines the target power of the temperature and humidity control device and the corresponding target module based on the real-time environmental parameters and set parameters inside the chamber.

[0044] The target module includes a cooling module or a heating module, and / or, the target module includes a humidification module or a dehumidification module; the target power is the sum of the output power and the initial power, the output power is calculated based on real-time environmental parameters and set parameters, and the initial power is the intermediate value of the power output module, the actual output power corresponding to the intermediate value is zero; the cooling module and the heating module share the first power output module, and the humidification module and the dehumidification module share the second power output module.

[0045] S102, the constant temperature chamber control target module operates according to the corresponding target power.

[0046] S203, assuming the target module includes a dehumidification module, the real-time temperature inside the chamber reaches a stable condition, and the dehumidification module is in operation, if the first difference between the set temperature and the real-time temperature inside the chamber is greater than a first threshold, the constant temperature chamber determines the compensation power of the temperature control module based on the current output power of the first power output module and the first compensation coefficient. The temperature control module includes a heating module or a cooling module.

[0047] S204, the constant temperature chamber determines the compensation power of the dehumidification module based on the current output power of the second power output module and the second compensation coefficient.

[0048] S205, the constant temperature chamber control temperature adjustment module and dehumidification module operate at the corresponding compensated power.

[0049] Among them, the first compensation coefficient is greater than 1, and the larger the first difference, the larger the first compensation coefficient.

[0050] Here, to further reduce the impact of the dehumidification process on the internal ambient temperature and ensure priority for internal temperature control while the dehumidification module is operating, corresponding control logic is implemented. Power adjustments are made to offset temperature fluctuations caused by dehumidification. Specifically, after the internal real-time temperature reaches a stable condition, if the dehumidification module's operation causes significant fluctuations in the internal real-time temperature (i.e., the first difference between the set temperature and the internal real-time temperature exceeds a first threshold), the compensation power for both the temperature control module and the dehumidification module is determined (dehumidification generally causes a temperature drop, so the temperature control module's power needs to be adjusted for temperature compensation). The compensation power for the temperature control module is calculated based on the current output power of the first power output module and the first compensation coefficient. Understandably, when the dehumidification module is running, the operating temperature control module could be either a heating module or a cooling module. When the temperature control module is a heating module, the temperature drop caused by dehumidification requires the heating module to provide higher power to compensate for the cooling effect. When the temperature control module is a cooling module, the temperature drop caused by dehumidification requires the cooling module to reduce its power to suppress the temperature drop inside the chamber. Therefore, the current output power of the first power output module is multiplied by the first compensation coefficient and then added to the initial power to obtain the compensation power of the temperature control module.

[0051] Simultaneously, based on the current power of the second power output module and the second compensation coefficient, the compensation power of the dehumidification module is calculated. If the compensation power of the dehumidification module is less than the actual output power before compensation, i.e., the target power, the power of the dehumidification module is reduced to minimize its impact on the internal temperature. Thus, if the temperature drop caused by dehumidification exceeds the preset range, the power of both the temperature and humidity modules is adjusted simultaneously to prioritize maintaining a relatively constant internal temperature and achieve a dynamic balance between humidity and temperature.

[0052] It should be noted that when the first difference between the set temperature and the real-time temperature inside the chamber is less than or equal to the first threshold, the target power of the temperature control module is still calculated based on the first power output module mentioned above for stable temperature regulation. That is, normal temperature adjustment compensates for small temperature drops, thereby avoiding over-control and ensuring the stability of the constant temperature chamber control system.

[0053] Furthermore, in some examples, the actual output power can be adjusted based on the actual output power of the temperature control module and the second compensation coefficient. In this case, when the temperature control module is a heating module, the first compensation coefficient is greater than 1, and the larger the first difference, the larger the first compensation coefficient; when the temperature control module is a cooling module, the first compensation coefficient is less than 1, and the larger the first difference, the smaller the first compensation coefficient.

[0054] Optionally, in S203, the constant temperature chamber determines the compensation power of the heating module based on the current output power of the first power output module and the first compensation coefficient, including: The constant temperature chamber calculates the product of the current output power of the first power output module and the first compensation coefficient.

[0055] The constant temperature chamber uses the product and the sum of the initial power as the compensation power.

[0056] Among them, the first compensation coefficient is greater than 1, and the larger the first difference, the larger the first compensation coefficient.

[0057] Here, the compensation power of the temperature control module is obtained by multiplying the current output power of the first power output module by the first compensation coefficient and then adding it to the initial power.

[0058] When the temperature control module is a heating module, the current output power of the first power output module is multiplied by a first compensation coefficient to further increase the output power of the first power output module. This increases the actual output power of the heating module, and the increased power is used to offset temperature fluctuations outside the dehumidification range. The first compensation coefficient can be a fixed coefficient or a coefficient that dynamically changes with the first difference. In this scenario, the larger the first difference, the larger the first compensation coefficient (the first compensation coefficient is greater than 1), to better compensate for the temperature drop caused by dehumidification.

[0059] When the temperature control module is a cooling module, the calculation of the compensation power is the same as that for the heating module. However, in this scenario, the current output power of the first power output module multiplied by the first compensation coefficient is close to the initial power, based on... Figure 3It can be seen that the output power of the first power output module is approximately close to the initial power, and the corresponding actual output power is smaller. Therefore, the compensation power of the cooling module is reduced compared to the target power (i.e., the current actual output power), thus reducing the actual output power of the cooling module to curb a significant drop in temperature. Furthermore, the larger the first difference, the larger the first compensation coefficient. Thus, when dehumidification causes a significant drop in temperature, the power of the temperature control module and the dehumidification module is adjusted to prioritize maintaining the temperature within a reasonable range.

[0060] For example, when the target modules are a cooling module and a dehumidifying module, the first compensation coefficient corresponding to the first difference is a1 > 1; the current power of the first power output module is P1', and the compensation power P' = -P1' × a1 + P0 < 50. Because a1 > 1, the compensation power is smaller than the power before compensation, meaning the actual output power of the cooling module decreases. Similarly, when the target modules are a heating module and a dehumidifying module, the current power of the first power output module is P1', and the compensation power P' = P1' × a1 + P0 < 50. Because a1 > 1, the compensation power is larger than the power before compensation, meaning the actual output power of the heating module increases.

[0061] Optionally, in step S204, the constant temperature chamber determines the compensation power of the dehumidification module based on the current output power of the second power output module and the second compensation coefficient, including: The constant temperature chamber uses the sum of the current output power of the second power output module, the product of the second compensation coefficient, and the initial power as the compensation power of the dehumidification module.

[0062] The second compensation coefficient is less than 1, and the larger the first difference, the smaller the second compensation coefficient.

[0063] Here, the current output power of the second power output module is corrected based on a second compensation coefficient to reduce dehumidification efficiency. The second compensation coefficient is less than 1, meaning the corrected power is lower than the target power (actual output power), thus suppressing dehumidification efficiency and reducing its excessive impact on temperature. The larger the first difference, the smaller the second compensation coefficient. This means a greater impact on the internal temperature and a greater suppression of dehumidification power. In this way, through power compensation of the heating module and power suppression of the dehumidification module, the relative stability of the internal temperature is ensured.

[0064] Combination Figure 5 As shown, this disclosure provides another control method for a trans-ambient temperature control chamber, including: S101, when the constant temperature chamber is powered on or the set parameters are updated, the constant temperature chamber determines the target power of the temperature and humidity control device and the corresponding target module based on the real-time environmental parameters and set parameters inside the chamber.

[0065] The target module includes a cooling module or a heating module, and / or, the target module includes a humidification module or a dehumidification module; the target power is the sum of the output power and the initial power, the output power is calculated based on real-time environmental parameters and set parameters, and the initial power is the intermediate value of the power output module, the actual output power corresponding to the intermediate value is zero; the cooling module and the heating module share the first power output module, and the humidification module and the dehumidification module share the second power output module.

[0066] S102, the constant temperature chamber control target module operates according to the corresponding target power.

[0067] S303, when the target module includes the humidification module, the real-time temperature inside the chamber reaches a stable condition, and the humidification module is in operation, if the first difference between the set temperature and the real-time temperature inside the chamber is less than the second threshold, the constant temperature chamber determines the compensation power of the temperature control module based on the current output power of the first power output module and the third compensation coefficient.

[0068] S304, the constant temperature chamber determines the compensation power of the humidification module based on the current output power of the second power output module and the fourth compensation coefficient.

[0069] S305, the constant temperature chamber control humidity module and humidification module operate at the corresponding compensated power.

[0070] The temperature control module includes either a heating module or a cooling module.

[0071] Here, after the internal temperature reaches a stable state, the humidification module remains operational, which may cause fluctuations in the internal temperature (isothermal humidification generally causes a temperature increase). If the operation of the humidification module causes significant fluctuations and a temperature increase in the internal temperature (i.e., the first difference between the set temperature and the internal temperature is less than the second threshold, which is negative), the compensation power for the temperature control module and the humidification module is determined separately. Specifically, the compensation power for the temperature control module is calculated based on the current output power of the first power output module and the third compensation coefficient. Understandably, while the humidification module is running, the operating temperature control module may be either a heating module or a cooling module. When the temperature control module is a heating module, the temperature increase caused by humidification requires the heating module to reduce its power to suppress the temperature rise. When the temperature control module is a cooling module, the temperature rise caused by humidification requires the cooling module to increase its power to compensate for the temperature increase inside the chamber. The calculation principle for the compensation power is the same as described above and will not be explained in detail here.

[0072] Simultaneously, based on the current output power of the second power output module and the fourth compensation coefficient, the compensation power of the humidification module is calculated. If the compensation power of the humidification module is less than the target power, the power of the humidification module is reduced to minimize its impact on the internal temperature. In this embodiment, when calculating the actual output power of the humidification module, the current output power of the second power output module needs to be multiplied by -1 (see above). Thus, if the temperature drop caused by humidification exceeds the preset range, the power of both the temperature module and the humidification module is adjusted simultaneously to prioritize maintaining a relatively constant internal temperature and achieve a dynamic balance between humidity and temperature.

[0073] It should be noted that when the first difference is greater than or equal to the second threshold, temperature stabilization is achieved based on the target power calculated by the first power output module. This means that a small temperature drop is compensated for by normal temperature adjustment, thus avoiding over-control and ensuring the stability of the constant temperature chamber control system. Furthermore, isenthalpic humidification generally causes a temperature decrease (in which case the second difference is positive, and the judgment condition becomes the second difference being greater than the third threshold, which is positive). In this scenario, the compensation power of the temperature control module is determined. The principle is the same as described above and will not be repeated here. The third compensation coefficient, fourth compensation coefficient, and compensation power can all be found in the calculation or determination method for the dehumidification module operation described above. All compensation coefficients are positive.

[0074] Combination Figure 6 As shown, this disclosure provides a control device 100 for a cross-temperature incubator, including a processor 101 and a memory 102. Optionally, the device may further include a communication interface 103 and a bus 104. The processor 101, communication interface 103, and memory 102 can communicate with each other via the bus 104. The communication interface 103 can be used for information transmission. The processor 101 can call logical instructions in the memory 102 to execute the control method for the cross-temperature incubator described in the above embodiment.

[0075] Furthermore, the logical instructions in the aforementioned memory 102 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium.

[0076] The memory 102, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the methods in the embodiments of this disclosure. The processor 101 executes functional applications and data processing by running the program instructions / modules stored in the memory 102, thereby implementing the control method for the cross-temperature constant temperature chamber in the above embodiments.

[0077] The memory 102 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created based on the use of the terminal device. Furthermore, the memory 102 may include high-speed random access memory and may also include non-volatile memory.

[0078] Combination Figure 7 As shown, this disclosure provides a trans-annular temperature constant temperature chamber 200, including: a temperature and humidity regulating device disposed in the inner cavity of the constant temperature chamber, including independently controllable refrigeration module, heating module, humidification module, and dehumidification module; and the aforementioned control device 100 for the trans-annular temperature constant temperature chamber. The control device 100 for the trans-annular temperature constant temperature chamber is installed on the body of the trans-annular temperature constant temperature chamber. The installation relationship described herein is not limited to placement inside the body of the trans-annular temperature constant temperature chamber, but also includes installation and connection with other components of the trans-annular temperature constant temperature chamber 200, including but not limited to physical connection, electrical connection, or signal transmission connection. Those skilled in the art will understand that the control device 100 for the trans-annular temperature constant temperature chamber can be adapted to feasible trans-annular temperature constant temperature chamber bodies, thereby realizing other feasible embodiments.

[0079] This disclosure provides a computer-readable storage medium storing computer-executable instructions configured to execute the above-described control method for a cross-temperature constant temperature chamber.

[0080] The technical solutions of this disclosure can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes one or more instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in this disclosure. The aforementioned storage medium can be a non-transitory storage medium, such as a USB flash drive, external hard drive, read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk, etc., and other media capable of storing program code.

[0081] The foregoing description and accompanying drawings fully illustrate embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the terminology used in this application is for describing embodiments only and is not intended to limit the claims. As used in the description of embodiments and claims, the singular forms “a,” “an,” and “the” are intended to equally include the plural forms unless the context clearly indicates otherwise. Similarly, the term “and / or” as used in this application means including one or more of the associated listed items and all possible combinations thereof. Additionally, when used in this application, the term "comprise" and its variations "comprises" and / or "comprising" refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Without further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes said element. In this document, each embodiment may focus on the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, the relevant parts can be referred to the description of the method section.

[0082] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this disclosure. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0083] The methods and products disclosed in the embodiments herein (including but not limited to devices and equipment) can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For instance, the division of units may be merely a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be electrical, mechanical, or other forms. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to implement this embodiment according to actual needs. In addition, the functional units in the embodiments of this disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0084] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than that shown in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks may also occur in a different order than disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. Each block in a block diagram and / or flowchart, and combinations of blocks in a block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

Claims

1. A trans-ambient temperature control chamber, characterized in that, include: The temperature and humidity control device is located inside the constant temperature chamber and includes independently controllable cooling, heating, humidification and dehumidification modules. Each module shares a fan, and the heating, cooling, dehumidification and humidification modules are arranged sequentially along the air outlet direction of the air duct. The controller is configured to control the working status of each module of the temperature and humidity regulating device based on the ambient temperature and humidity inside the constant temperature chamber and the set parameters; wherein the heating module and the cooling module do not work at the same time, and the humidification module and the dehumidification module do not work at the same time.

2. The constant temperature chamber according to claim 1, characterized in that, The dehumidification module includes: The dehumidifier is configured to, when the dehumidification module is working, be controlled by the controller to keep the surface temperature of the dehumidifier below the current dew point temperature inside the constant temperature chamber. An airflow regulating cover is installed over the dehumidifier; the airflow regulating cover has an opening to allow the dehumidifier to come into contact with the airflow in the duct for dehumidification.

3. The constant temperature chamber according to claim 2, characterized in that, The opening area of ​​the air volume regulating cover is adjustable; and one end of the air volume regulating cover is provided with a drain outlet to drain condensate.

4. A control method for a trans-ambient temperature control chamber, based on the temperature control chamber according to any one of claims 1 to 3, characterized in that, The control method includes: When the constant temperature chamber is powered on or the set parameters are updated, the target power of the temperature and humidity control device and the corresponding target module are determined based on the real-time environmental parameters and set parameters inside the chamber. The target module is controlled to operate at the corresponding target power. The target module includes a cooling module or a heating module, and / or, the target module includes a humidification module or a dehumidification module; the target power is the sum of the output power and the initial power, the output power is calculated based on real-time environmental parameters and set parameters, and the initial power is the intermediate value of the power output module, the actual output power corresponding to the intermediate value is zero; the cooling module and the heating module share the first power output module, and the humidification module and the dehumidification module share the second power output module.

5. The method according to claim 4, characterized in that, The power output module is obtained through the following methods: The power output control of the cooling module and the heating module is integrated into the first power output module; wherein, the minimum value of the first power output module corresponds to 100% of the actual cooling output power, and the maximum value corresponds to 100% of the actual heating output power; The power output control of the dehumidification module and the humidification module is integrated into the second power output module; wherein, the minimum value of the second power output module corresponds to 100% of the actual output power of humidification, and the maximum value corresponds to 100% of the actual output power of dehumidification.

6. The method according to claim 4, characterized in that, When the target module includes a dehumidification module, after controlling the target module to operate at the corresponding target power, the following is also included: When the real-time temperature inside the chamber reaches a stable condition and the dehumidification module is operating, if the first difference between the set temperature and the real-time temperature inside the chamber is greater than a first threshold, then the compensation power of the temperature control module is determined based on the current output power of the first power output module and the first compensation coefficient; and... The compensation power of the dehumidification module is determined based on the current output power of the second power output module and the second compensation coefficient. The temperature control module and the dehumidification module are controlled to operate at their corresponding compensated power. The temperature control module includes either a heating module or a cooling module.

7. The method according to claim 6, characterized in that, Based on the current output power of the first power output module and the first compensation coefficient, the compensation power of the temperature control module is determined, including: Calculate the product of the current output power of the first power output module and the first compensation coefficient; The sum of the product and the initial power is used as the compensation power; Among them, the first compensation coefficient is greater than 1, and the larger the first difference, the larger the first compensation coefficient.

8. The method according to claim 6, characterized in that, Based on the current output power of the second power output module and the second compensation coefficient, the compensation power of the dehumidification module is determined, including: The product of the current output power of the second power output module and the second compensation coefficient, plus the sum of the initial power, is used as the compensation power of the dehumidification module. The second compensation coefficient is less than 1, and the larger the first difference, the smaller the second compensation coefficient.

9. The method according to claim 4, characterized in that, When the target module includes a humidification module, after controlling the target module to operate at the corresponding target power, the following is also included: When the real-time temperature inside the chamber reaches a stable condition and the humidification module is running, if the first difference between the set temperature and the real-time temperature inside the chamber is less than the second threshold, then the compensation power of the temperature control module is determined based on the current output power of the first power output module and the third compensation coefficient; and... The compensation power of the humidification module is determined based on the current output power of the second power output module and the fourth compensation coefficient. The temperature control module and humidification module are controlled to operate at their corresponding compensated power. The temperature control module includes either a heating module or a cooling module.

10. A control device for a trans-ambient temperature control chamber, comprising a processor and a memory storing program instructions, characterized in that, The processor is configured to execute, when running the program instructions, the control method for a trans-ambient temperature control chamber as described in any one of claims 4 to 9.

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