Dual-chamber air conditioner

Abstract

This disclosure relates to a dual-cavity air conditioner, comprising: a first cavity having a first air inlet and a first air outlet, the first cavity being equipped with a first circulating fan and a first temperature regulating component; and a second cavity having a second air inlet and a second air outlet, the second air inlet being connected to the first air outlet, the second cavity being equipped with a second circulating fan and a second temperature regulating component. External air intake or user cavity return air first enters the first cavity for mixing and temperature regulation, maintaining the air temperature within the first cavity at a relatively stable state. The air intake of the second cavity is taken from the first cavity. Because the first cavity has effectively isolated and regulated external temperature fluctuations, the air temperature entering the second cavity is relatively stable. Through further circulation, mixing, and temperature regulation within the second cavity, the final air temperature exiting from the second air outlet of the second cavity is extremely stable, i.e., with minimal temperature fluctuation.

Description

Technical Field

[0001] This disclosure relates to the field of air conditioning technology, specifically to a dual-chamber air conditioner. Background Technology

[0002] With the development of high-precision machining and measurement technologies, related instruments and equipment require a stable temperature environment to ensure that their deformation range is controlled within a certain range. Currently, high-precision air conditioners can ideally achieve a temperature fluctuation of ±0.02℃ at the air outlet. However, this is only achievable under specific conditions, such as when the ambient temperature is relatively stable (typically requiring a temperature fluctuation within ±1℃) and the temperature fluctuation of the controlled equipment is small. Such air conditioners have weak resistance to environmental interference. Once the ambient temperature fluctuation exceeds a certain range, such as >±1℃, or the temperature of the controlled equipment changes rapidly, it is impossible to guarantee that the air outlet temperature fluctuation is controlled within ±0.02℃. Summary of the Invention

[0003] The purpose of this disclosure is to provide a dual-chamber air conditioner to at least partially solve the problems existing in the related art.

[0004] To achieve the above objectives, this disclosure provides a dual-chamber air conditioner, comprising: The first cavity has a first air inlet and a first air outlet. The first cavity is provided with a first circulating fan and a first temperature regulating component. The first circulating fan is used to circulate and mix the air in the first cavity, and the first temperature regulating component is used to regulate the temperature of the air in the first cavity. The second cavity has a second air inlet and a second air outlet. The second air inlet is connected to the first air outlet. The second cavity is equipped with a second circulating fan and a second temperature regulating component. The second circulating fan is used to circulate and mix the air in the second cavity, and the second temperature regulating component is used to regulate the temperature of the air in the second cavity.

[0005] According to some possible embodiments, the circulating air volume N1 of the first circulating fan per unit time and the air intake volume N2 of the first air inlet per unit time satisfy: N1≥N2; and / or, the circulating air volume N3 of the second circulating fan per unit time and the air intake volume N4 of the second air inlet per unit time satisfy: N3≥N4.

[0006] According to some possible embodiments, the circulating air volume N1 of the first circulating fan per unit time and the air volume N2 of the first air inlet per unit time satisfy: N1≥5 N2; and / or, the circulating air volume N3 of the second circulating fan per unit time and the air intake volume N4 of the second air inlet per unit time satisfy: N3≥5 N4.

[0007] According to some possible embodiments, the circulating air volume N1 of the first circulating fan per unit time and the air volume N2 of the first air inlet per unit time satisfy: N1 ≥ 10 N2; and / or, the circulating air volume N3 of the second circulating fan per unit time and the air intake volume N4 of the second air inlet per unit time satisfy: N3≥10 N4.

[0008] According to some possible embodiments, the first temperature control component exchanges heat with the circulating air in the first cavity through a liquid medium; and / or the second temperature control component directly contacts and exchanges heat with the circulating air in the second cavity.

[0009] According to some possible embodiments, the first temperature control assembly includes a coil disposed within the first cavity, the coil being used to supply the flow of the liquid medium. In the location of the coil, the flow direction of the liquid medium is opposite to the air circulation direction.

[0010] According to some possible embodiments, the first cavity has a first air duct for air circulation, the first air duct being provided with a first baffle to mix air in a plane perpendicular to the air flow direction; and / or, the second cavity has a second air duct for air circulation, the second air duct being provided with a second baffle to mix air in a plane perpendicular to the air flow direction.

[0011] According to some possible embodiments, a first temperature sensor is provided at the first air outlet, and a second temperature sensor is provided at the second air outlet. The dual-cavity air conditioner also includes a controller, which is used to control the first temperature regulating component and the second temperature regulating component according to the test temperatures of the first temperature sensor and the second temperature sensor.

[0012] According to some possible embodiments, the difference between the first set temperature of the air in the first cavity and the second set temperature of the air in the second cavity is greater than or equal to 0.1°C.

[0013] According to some possible embodiments, the first air inlet is located upstream of the first circulating fan and close to the air inlet end of the first circulating fan, and the guiding direction of the first air inlet and the air flow direction in the first cavity form an acute angle to each other; and / or, the second air inlet is located upstream of the second circulating fan and close to the air inlet end of the second circulating fan, and the guiding direction of the second air inlet and the air flow direction in the second cavity form an acute angle to each other.

[0014] The above technical solution provides a dual-cavity air conditioner. External air intake or customer cavity return air first enters the first cavity for mixing and temperature regulation, effectively creating a large buffer space to maintain a relatively stable air temperature within the first cavity. The second cavity receives air from the first cavity. Because the first cavity effectively isolates and regulates external temperature fluctuations, the air temperature entering the second cavity is relatively stable. Further circulation, mixing, and temperature regulation within the second cavity ensures that the air exiting from the second outlet of the second cavity has a very stable temperature, with minimal temperature fluctuations, before being supplied to the user cavity. This solution solves the problem of fluctuating outlet air temperature caused by ambient temperature variations in precision air conditioners. Furthermore, through the dual-cavity design and internal circulation, it eliminates the need for return air, thus resolving the dependence of traditional precision air conditioners on return air for intake.

[0015] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of airflow in a dual-cavity air conditioner as exemplarily shown in this disclosure; Figure 2 yes Figure 1 The diagram shows the temperature / volume distribution of a dual-cavity air conditioner. Figure 3 yes Figure 1 The diagram shows the control logic of a dual-chamber air conditioner.

[0017] Explanation of reference numerals in the attached figures 1-First cavity; 101-First air inlet; 102-First air outlet; 21-First circulating fan; 22-Second circulating fan; 31-First temperature control component; 311-Coil; 32-Second temperature control component; 4-Second cavity; 401-Second air inlet; 402-Second air outlet; 51-First temperature sensor; 52-Second temperature sensor; 6-Controller; 61-First-level PID controller; 62-Second-level PID controller; 7-User cavity; 8-Display panel. Detailed Implementation

[0018] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0019] In this disclosure, unless otherwise stated, the terms "inner" and "outer" are used in relation to the structure of the relevant components themselves. For example, the first temperature regulating component is used to regulate the temperature of the air "inner" of the first cavity, which means that it regulates the average temperature of the air inside the accommodating space of the first cavity. The term "downstream" is used in relation to the direction of airflow. For example, the coil is located "downstream" of the first air inlet and is set close to the first air inlet, which means that the air entering from the first air inlet can flow to the downstream coil position to complete heat exchange.

[0020] In this disclosure, the terms "first," "second," etc., are used to distinguish one element from another and do not indicate any order or importance. When the following description relates to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0021] Reference Figures 1-3 This disclosure provides a dual-cavity air conditioner, including a first cavity 1 and a second cavity 4. The first cavity 1 has a first air inlet 101 and a first air outlet 102, and the second cavity 4 has a second air inlet 401 and a second air outlet 402. The second air inlet 401 is connected to the first air outlet 102. The first air inlet 101 is used for the inflow of fresh air or return air, and the second air outlet 402 is used to connect to the user cavity 7, so that fresh air or return air can enter the first cavity 1 through the first air inlet 101, enter the second cavity 4 through the first air outlet 102 and the second air inlet 401, and then enter the user cavity 7 through the second air outlet 402 to achieve temperature regulation. The first cavity 1 is equipped with a first circulating fan 21 and a first temperature regulating component 31. The first circulating fan 21 is used to circulate and mix the air in the first cavity 1, so that the fresh air or return air entering from the first air inlet 101 mixes with the original air in the first cavity 1. The first temperature regulating component 31 is used to regulate the temperature of the air in the first cavity 1, for example, by heating or cooling. The second cavity 4 is equipped with a second circulating fan 22 and a second temperature regulating component 32. The second circulating fan 22 is used to circulate and mix the air in the second cavity 4, so that the air entering from the second air inlet 401 mixes with the original air in the second cavity 4. The second temperature regulating component 32 is used to regulate the temperature of the air in the second cavity 4, for example, by heating or cooling.

[0022] This disclosure does not limit the aforementioned circulating fan, which can be used in conjunction with the specific structure within the corresponding cavity to create circulating airflow inside, thereby ensuring thorough mixing of the internal air. Furthermore, in this disclosure, the cavity can be a receiving space formed by a hexahedral shell, or it can be the internal space of a circulating duct; this disclosure does not limit this, as long as it is used in conjunction with a circulating fan to create circulating airflow.

[0023] It should be noted that this disclosure does not limit the number of the first temperature regulating component 31 and the second temperature regulating component 32. They can be one, two, etc., and the specific number and arrangement can be adapted to the requirements.

[0024] By using the above technical solution, a dual-cavity air conditioner is provided. External air intake or return air from the customer cavity 7 first enters the first cavity 1 for mixing and temperature regulation, effectively creating a large buffer space to maintain a relatively stable air temperature within the first cavity 1. The second cavity 4 receives air from the first cavity 1. Because the first cavity 1 effectively isolates and regulates external temperature fluctuations, the air temperature entering the second cavity 4 is relatively stable. Through circulation, mixing, and temperature regulation within the second cavity 4, the air temperature exiting from the second air outlet 402 of the second cavity 4 becomes extremely stable, with minimal temperature fluctuation, before being supplied to the user cavity 7. This solution solves the problem of fluctuating outlet air temperature caused by ambient temperature variations in precision air conditioners. Furthermore, through the dual-cavity design and internal circulation, it eliminates the need for return air, thus resolving the problem of traditional precision air conditioners relying on return air for intake.

[0025] In embodiments of this disclosure, the dual-cavity air conditioner may further include a first fan disposed at the first air inlet 101, thereby allowing external fresh air or return air to enter the first cavity 1 through the first air inlet 101, thus creating a pressure difference, which in turn drives the air in the first cavity 1 to flow into the second cavity 4, and out through the second air outlet 402 in an amount equal to that of the first air inlet 101. Alternatively, in some other embodiments, the dual-cavity air conditioner may further include a second fan disposed at the second air outlet 402, which causes the air in the second cavity 4 to flow out through the second air outlet 402, thereby driving an equal amount of fresh air or return air into the first air inlet 101 of the first cavity 1. Of course, in some other embodiments, the aforementioned first fan and second fan may be provided simultaneously.

[0026] To ensure that the air entering the two cavities from their respective air inlets is fully mixed with the original air inside the cavities, resulting in a uniform temperature field without localized overcooling / overheating and reducing air temperature fluctuations, in some embodiments of this disclosure, the circulating air volume N1 of the first circulating fan 21 and the intake air volume N2 of the first air inlet 101 per unit time can satisfy: N1 ≥ N2. The circulating air volume N3 of the second circulating fan 22 and the intake air volume N4 of the second air inlet 401 per unit time can satisfy: N3 ≥ N4.

[0027] In some other embodiments, to further reduce air temperature fluctuations, the circulating air volume N1 of the first circulating fan 21 per unit time and the air intake volume N2 of the first air inlet 101 per unit time can satisfy: N1 ≥ 5 N2. The circulating air volume N3 of the second circulating fan 22 per unit time and the air intake volume N4 of the second air inlet 401 per unit time can satisfy: N3≥5 N4.

[0028] In some other embodiments, the circulating air volume N1 of the first circulating fan 21 per unit time and the air intake volume N2 of the first air inlet 101 per unit time can satisfy: N1 ≥ 10 N2. The circulating air volume N3 of the second circulating fan 22 and the air intake volume N4 of the second air inlet 401 per unit time can satisfy: N3 ≥ 10 N4.

[0029] To further illustrate that configuring the recirculating airflow to be greater than the intake airflow facilitates thorough mixing of the air within the cavity, resulting in more uniform temperature and reduced air temperature fluctuations, see reference [reference needed]. Figure 2 This disclosure provides a specific embodiment in which the inlet air temperature of the first air inlet 101 is T1=22.5℃ and the inlet air velocity is V1=100m³ / h; the liquid outlet temperature of the first temperature regulating component 31 is T2=18.4℃ and the liquid inlet temperature is T3=18.0℃; the average air temperature of the first cavity 1 is T4=21.7℃ and the circulation velocity of the first circulating fan 21 is V2=1000 m³ / h; the inlet air temperature of the second air inlet 401 is T5=21.8℃ and the inlet air velocity is V3=100m³ / h; the temperature of the second temperature regulating component 32 is T6=40.0℃; the average air temperature of the second cavity 4 is T7=22℃ and the circulation velocity of the second circulating fan 22 is V2=1000 m³ / h; the outlet air temperature of the second air outlet 402 is T8=22.0℃ and the outlet air velocity is V5=100m³ / h. The following section will calculate the temperature fluctuation after air mixing based on this embodiment.

[0030] Regarding the first cavity 1, 1000 m 3 / h flow rate of 21.7℃ air with 100 m 3 The temperature of the mixture after mixing is calculated using the heat balance of the air mixture at a flow rate of / h at 22.5℃: (1000 21.7 + 100 22.5) / (1000 + 100) = 21.77℃ (rounded to two decimal places); similarly, 1000 m 3 / h flow rate of 21.7℃ air with 100 m 3 The temperature of the mixture after mixing air at a flow rate of / h and a temperature of 23℃ is calculated using the heat balance of the air mixture: 21.82℃; similarly. 1000m 3 / h flow rate of 21.7℃ air with 100 m 3A mixture of 22°C air at a flow rate of [flow rate] / h is used. Using the heat balance of the air mixture, the temperature after mixing is calculated to be 21.73°C. Therefore, if the inlet air temperature fluctuation is 22.5 ± 0.5°C, then 100m [flow rate]... 3 / h flow rate of air intake and 1000 m³ in the first chamber 1 3 The mixing of air at a flow rate of / h and a temperature of 21.7℃ can ensure that the average temperature of the first chamber 1 is T4 = 21.77 ± 0.05℃. Therefore, by setting the circulating airflow of the first chamber 1 to ten times the inlet airflow, the inlet air temperature fluctuation can be significantly reduced (e.g., by more than 80%), ensuring that the inlet air temperature fluctuation of the second chamber 4 is less than 0.05℃.

[0031] Next, the second cavity 4 is calculated using the two limiting values ​​of T5 (21.73℃ and 21.82℃) mentioned above. 1000 m 3 / h flow rate of 22°C air with 100 m 3 A mixture of air at a flow rate of / h and a temperature of 21.73℃, calculated above, results in a mixed temperature of 21.9755℃; 1000 m 3 / h flow rate of 22°C air with 100 m 3 With air mixed at a flow rate of 21.82℃ per hour, the calculated temperature after mixing is 21.9836℃. It is clear that, without considering external interference (heat transfer between the cavity and the outside environment), the average temperature of the second cavity 4 can be guaranteed to be T7 = 21.9796 ± 0.0040℃, achieving high-precision control and ultra-low temperature fluctuations. It should be noted that the above describes the natural mixing situation without the addition of a temperature control component. Adding the aforementioned temperature control component in conjunction with active temperature control can achieve even higher temperature accuracy.

[0032] This disclosure does not limit the first temperature regulating component 31, see reference. Figure 2 In this embodiment, the first temperature regulating component 31 can exchange heat with the circulating air in the first cavity 1 through a liquid medium (such as cooling water). That is, the heat source or cold source of the first temperature regulating component 31 first exchanges heat with the liquid medium, and then exchanges heat with the circulating air through the liquid medium. This design takes advantage of the large heat capacity of the liquid medium to achieve the purpose of small temperature fluctuation. By combining the large heat capacity with the aforementioned large circulating air volume, the fluctuation of the inlet air temperature can be effectively attenuated.

[0033] Reference Figure 2In this embodiment, the second temperature control component 32 can directly exchange heat with the circulating air in the second cavity 4. That is, the heat source or cold source of the second temperature control component 32 directly exchanges heat with the circulating air. The second temperature control component 32 can be a heating rod, heating plate, heating wire, heating fins, the hot end of a semiconductor cooling chip, etc. This design utilizes the advantage of air's low heat capacity to achieve a fast response, compensating for the slow response and long cycle caused by the liquid medium in the first cavity 1. This disclosure utilizes two temperature control systems arranged in a dual-cavity configuration, specifically a two-stage temperature control system combining liquid and gas. Water has a high heat capacity, resulting in a slow response, long cycle, and sluggishness, while air has a low heat capacity, fast response, short cycle, and high sensitivity. First, coarse temperature adjustment and stabilization are performed using water, and then fine adjustment is performed using air. The two cycles are decoupled to avoid crosstalk problems. By complementing the characteristics of the two systems, both over-adjustment and slow response problems can be overcome.

[0034] Regarding the specific structure of the first temperature regulating component 31, please refer to... Figure 2 In this embodiment, the first temperature control component 31 may include a coil 311 disposed within the first cavity 1, the coil 311 being used to supply liquid medium flow. Wherein, at the location of the coil 311, the flow direction of the liquid medium may be opposite to the air circulation direction. Here, "flow direction of the liquid medium" refers to its overall direction along the air circulation path, for example, it may specifically be as follows: Figure 2 The image shows a repeated, meandering extension in the left-right direction, but its overall flow direction is... Figure 2 The airflow is from bottom to top, while the direction of the circulating air at that location is... Figure 2 The flow path is from top to bottom. This design ensures that the circulating air and liquid medium maintain a large temperature difference throughout the flow path, enabling forced convection for sufficient heat exchange and higher heat exchange efficiency. Specifically, the process could be as follows: the initial temperature of the incoming air is higher than the temperature of the liquid medium in coil 311, and heat is transferred to the liquid medium, causing the return water temperature of coil 311 to be higher than the inlet water temperature.

[0035] In some embodiments of this disclosure, the liquid medium can be cooling water, and the coil 311 can be located downstream of and close to the first air inlet 101. The first cavity 1 can also include a liquid collection device disposed below the coil 311. With this design, the air entering from the first air inlet 101 can quickly reach the coil 311 for heat exchange, and condensate can form on the coil 311. The condensate can be drained away through a pipe, thereby achieving the function of dehumidifying and regulating the temperature of the air intake.

[0036] In some embodiments of this disclosure, to further enhance the mixing effect of the circulating air in the first cavity 1, the first cavity 1 may have a first air duct for air circulation. The first air duct may be equipped with a first baffle to mix the air in a plane perpendicular to the airflow direction. The first baffle may be, for example, a spiral blade, an obliquely perforated diverter plate, etc., as long as it can mix the air at different positions within the cross-section of the first air duct, avoiding the situation of "layered circulation" of air during the circulation process, that is, the gas at different positions in the cross-sectional direction is independent and does not mix with each other. Similarly, to further enhance the mixing effect of the circulating air in the second cavity 4, the second cavity 4 may have a second air duct for air circulation. The second air duct may be equipped with a second baffle to mix the air in a plane perpendicular to the airflow direction. The second baffle may be, for example, a spiral blade, an obliquely perforated diverter plate, etc., as long as it can mix the air at different positions within the cross-section of the second air duct, avoiding the situation of "layered circulation" of air during the circulation process, that is, the gas at different positions in the cross-sectional direction is independent and does not mix with each other. It should be noted that the "air duct" here can be formed by the cavity itself, or it can be additionally arranged inside the cavity.

[0037] This disclosure does not limit the first temperature regulating component 31 and the second temperature regulating component 32; the foregoing solutions are merely illustrative. For example, in some other embodiments, the first temperature regulating component 31 can be a primary heating element, and the second temperature regulating component 32 can be a secondary cooling element. In some low-flow-rate scenarios, the temperature regulating component can use the cold or hot end of a semiconductor cooling chip. Alternatively, it can also be... Figure 2 The heater in the system can be replaced with an inverter compressor for precise cooling. Alternatively, the heater can be replaced with a heat pump. Or, in... Figure 2 In one embodiment, the waste heat from the refrigerant used in the first stage of refrigeration can also be used for the second stage of heating.

[0038] Reference Figure 3 In some embodiments of this disclosure, a first temperature sensor 51 may be provided at the first air outlet 102, and a second temperature sensor 52 may be provided at the second air outlet 402. The dual-cavity air conditioner may also include a controller 6, which is used to control the first temperature regulating component 31 and the second temperature regulating component 32 according to the test temperatures of the first temperature sensor 51 and the second temperature sensor 52. In this embodiment, the controller 6 can be connected to the display panel 8 via integrated communication, thereby facilitating the monitoring, feedback, data analysis, alarm, and input of control commands of the air conditioner through the display panel 8.

[0039] exist Figure 3In the illustrated embodiment, controller 6 may be equipped with two-stage PID (Proportional-Integral-Derivative) controllers, which are connected to the control panel via integrated communication. The first-stage PID controller 61 receives a signal from the first temperature sensor 51, compares the target temperature with the real-time temperature, and outputs a signal to the first temperature regulating component 31. This adjusts the water flow rate of the first temperature regulating component 31 to stabilize the air temperature within the first cavity 1. Alternatively, the output signal from the first-stage PID controller 61 can control the output power of the first temperature regulating component 31, further improving the temperature stability of the first-stage temperature control. The second-stage PID controller 62 receives a signal from the second temperature sensor 52, outputs a signal to the second temperature regulating component 32 within the second cavity 4, compares the target temperature with the real-time temperature, and outputs a signal to the second temperature regulating component 32. This adjusts the power of the second temperature regulating component 32 to stabilize the air temperature.

[0040] In this disclosure, the difference between the first set temperature of the air in the first cavity 1 and the second set temperature of the air in the second cavity 4 can be greater than or equal to 0.1℃, for example, 0.1℃ or 0.2℃. Here, "set temperature" refers to the target average temperature of the air in the corresponding cavity. This design takes into account that even the highest precision AA-level temperature sensors currently available have a temperature measurement error as high as 0.1℃. When the difference between the first temperature of the air in the first cavity 1 and the second temperature of the air in the second cavity 4 is less than 0.1℃, the temperature difference obtained by the first temperature sensor 51 and the second temperature sensor 52 may deviate from the control basis of the controller 6 due to measurement error, thus causing control misalignment. This solution can isolate the absolute error of the sensors, always ensuring that the temperature difference obtained by the temperature sensors can meet the control basis of the controller 6, avoiding control system failure, and achieving ultra-precision temperature control without being limited by probe measurement error.

[0041] This disclosure does not limit the location of the air inlet. For example, in some embodiments, the first air inlet 101 can be located upstream of and near the air inlet end of the first circulating fan 21, so that the air from the first air inlet 101 can merge with the circulating air in the first cavity 1 and pass through the first circulating fan 21 immediately, thereby enhancing the mixing effect. Similarly, in some embodiments, the second air inlet 401 can be located upstream of and near the air inlet end of the second circulating fan 22, so that the air from the second air inlet 401 can merge with the circulating air in the second cavity 4 and pass through the second circulating fan 22 immediately, thereby enhancing the mixing effect.

[0042] In some embodiments of this disclosure, the guiding direction of the first air inlet 101 and the flow direction of the air inside the first cavity 1 form an acute angle with each other. Here, the "guiding direction" refers to the flow direction of the air flowing in through the first air inlet 101; the "flow direction of the air inside the first cavity 1" refers to the flow direction of the circulating air inside the first cavity 1 at the position corresponding to the first air inlet 101. The two form an acute angle with each other, such as 80°, 50°, 20°, etc., so that the air from the first air inlet 101 can converge in the direction of the circulating air as much as possible, reducing the shear force of the air from the first air inlet 101 on the circulating air inside the first cavity 1, and avoiding affecting the air circulation effect inside the first cavity 1. Similarly, in some other embodiments, the guiding direction of the second air inlet 401 and the flow direction of the air inside the second cavity 4 form an acute angle with each other. Here, "direction of airflow" refers to the direction of airflow entering through the second air inlet 401; "direction of airflow within the second cavity 4" refers to the direction of airflow within the second cavity 4 corresponding to the position of the second air inlet 401. The two directions form acute angles, such as 80°, 50°, or 20°, so that the air from the second air inlet 401 can converge along the direction of airflow as much as possible, reducing the shear force of the air from the second air inlet 401 on the circulating air within the second cavity 4, and avoiding affecting the air circulation effect within the second cavity 4.

[0043] In some embodiments of this disclosure, the inlet end of the circulating fan may be provided with a manifold sleeve whose inner diameter gradually decreases along the airflow direction. The smaller inner diameter end is connected to the air inlet end of the circulating fan, while the larger inner diameter end abuts against the inner wall of the air duct used for air circulation. This allows the air in the air duct to flow through the manifold sleeve to the circulating fan, avoiding the generation of eddies around the inlet end of the circulating fan, which would affect the air mixing effect.

[0044] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0045] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0046] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A dual-chamber air conditioner, characterized in that, include: The first cavity has a first air inlet and a first air outlet. The first cavity is provided with a first circulating fan and a first temperature regulating component. The first circulating fan is used to circulate and mix the air in the first cavity, and the first temperature regulating component is used to regulate the temperature of the air in the first cavity. The second cavity has a second air inlet and a second air outlet, the second air inlet being connected to the first air outlet. The second cavity is equipped with a second circulating fan and a second temperature regulating component. The second circulating fan is used to circulate and mix the air within the second cavity. The second temperature regulating component is independent of the first temperature regulating component and is used to regulate the temperature of the air within the second cavity. The circulating air volume N1 of the first circulating fan per unit time and the air intake volume N2 of the first air inlet per unit time satisfy: N1≥N2; and / or, the circulating air volume N3 of the second circulating fan per unit time and the air intake volume N4 of the second air inlet per unit time satisfy: N3≥N4.

2. The dual-chamber air conditioner according to claim 1, characterized in that, The circulating air volume N1 of the first circulating fan per unit time and the air intake volume N2 of the first air inlet per unit time satisfy: N1≥5 N2; and / or, the circulating air volume N3 of the second circulating fan per unit time and the air intake volume N4 of the second air inlet per unit time satisfy: N3≥5 N4.

3. The dual-chamber air conditioner according to claim 2, characterized in that, The circulating air volume N1 of the first circulating fan per unit time and the air intake volume N2 of the first air inlet per unit time satisfy: N1≥10 N2; and / or, the circulating air volume N3 of the second circulating fan per unit time and the air intake volume N4 of the second air inlet per unit time satisfy: N3≥10 N4.

4. The dual-chamber air conditioner according to any one of claims 1-3, characterized in that, The first temperature control component exchanges heat with the circulating air in the first cavity through a liquid medium; and / or, the second temperature control component directly contacts and exchanges heat with the circulating air in the second cavity.

5. The dual-chamber air conditioner according to claim 4, characterized in that, The first temperature control assembly includes a coil disposed within the first cavity, the coil being used to supply the flow of the liquid medium. In the location of the coil, the flow direction of the liquid medium is opposite to the air circulation direction.

6. The dual-chamber air conditioner according to any one of claims 1-3, characterized in that, The first cavity has a first air duct for air circulation, and the first air duct is provided with a first baffle to mix air in a plane perpendicular to the air flow direction; and / or, the second cavity has a second air duct for air circulation, and the second air duct is provided with a second baffle to mix air in a plane perpendicular to the air flow direction.

7. The dual-chamber air conditioner according to claim 1, characterized in that, A first temperature sensor is provided at the first air outlet, and a second temperature sensor is provided at the second air outlet. The dual-cavity air conditioner also includes a controller, which is used to control the first temperature regulating component and the second temperature regulating component according to the test temperatures of the first temperature sensor and the second temperature sensor.

8. The dual-chamber air conditioner according to claim 1 or 7, characterized in that, The difference between the first set temperature of the air in the first cavity and the second set temperature of the air in the second cavity is greater than or equal to 0.1℃.

9. The dual-chamber air conditioner according to claim 1, characterized in that, The first air inlet is located upstream of the first circulating fan and close to the air inlet end of the first circulating fan, and the guiding direction of the first air inlet and the air flow direction in the first cavity form an acute angle with each other; and / or, the second air inlet is located upstream of the second circulating fan and close to the air inlet end of the second circulating fan, and the guiding direction of the second air inlet and the air flow direction in the second cavity form an acute angle with each other.

Images