Temperature control apparatus and control method

Abstract

The application provides a temperature control device and a control method. The temperature control device comprises a shell, a wind channel in the shell, a first sub-wind channel and a second sub-wind channel, a first guide member or a second guide member, a fan, a heat exchange member and a heating member in the first sub-wind channel, and an electric control module for controlling the heat exchange member, the heating member, the first guide member and the second guide member. The special design of the heating element and the wind channel guide structure in the temperature control device can adaptively judge the temperature rising and falling treatment and the change of the flow direction of the gas according to the different air inlet temperatures when the device is in different ambient temperatures, and the degree of automation is high and the energy saving effect is obvious. Meanwhile, the uniformity of the air flow temperature and the flow rate of the air outlet can be effectively improved, and the precise control of the temperature of the temperature control environment can be realized.

Description

TECHNICAL FIELD

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

[0002] With the development of data centers and the diversification of equipment rooms, the heat generated by servers and other equipment in the equipment room will fluctuate more greatly. The heat generated by equipment room equipment is different at different times and in different spaces, which puts forward higher requirements for the temperature control self-adaptive ability of data center temperature control equipment.

[0003] In the process of implementing the present application, the inventors have found that at least the following problems exist in the prior art:

[0004] The existing temperature control equipment has a fixed and single way of heating and cooling gas, which cannot provide different control schemes to meet the needs of different times and different spaces under different environmental temperatures, and cannot meet the constant temperature demand. SUMMARY

[0005] To solve the existing technical problems, the present application provides a temperature control device and a control method that can meet more constant temperature demand.

[0006] To achieve the above purpose, the technical scheme of the embodiments of the present application is as follows:

[0007] In a first aspect, the embodiments of the present application provide a temperature control device, comprising a shell, the shell is provided with an air inlet and an air outlet, and the shell is provided with an air duct communicating with the air inlet and the air outlet; the air duct comprises a first sub-air duct and a second sub-air duct, the first sub-air duct communicates with the air inlet, the second sub-air duct communicates with the air outlet, and the first sub-air duct communicates with the second sub-air duct through a first flow guide or a second flow guide; a fan, a heat exchange element and a heating element are sequentially arranged in the first sub-air duct, and the outflow side of the fan and the outflow side of the heat exchange element are respectively provided with a first temperature sensor and a second temperature sensor;

[0008] The temperature control device further comprises an electric control module, which is configured to control the heating or cooling of the gas flowing through the heat exchange element according to the measured temperature of the first temperature sensor, and control the start-stop of the heating element, the opening and closing of the first flow guide and the opening and closing of the second flow guide according to the measured temperature of the second temperature sensor.

[0009] In one embodiment, the first flow guide and the second flow guide are adjacent and form a preset included angle, so that when the first flow guide is closed, the airflow in the first sub-air duct can be converged to the second flow guide and generate disturbance.

[0010] In one of the embodiments, the first and second flow guides are both structures with flow guide louvers that can be actively rotated, and the electric control module controls the rotation of the flow guide louvers of the first and second flow guides to achieve the passing or blocking of the gas.

[0011] In one of the embodiments, the second sub-air duct is provided with a flow mixing member for homogenizing the temperature of the flowing gas, the flow mixing member is in a flat plate structure and includes four flow mixing areas separated by crosses, and a plurality of air slots are arranged in parallel and at intervals on each of the flow mixing areas, and the air slots on adjacent two flow mixing areas are arranged vertically.

[0012] In one of the embodiments, the air outlet is provided with a flow uniformizing member for homogenizing the flow velocity of the flowing gas, and the flow uniformizing member is in a flat plate structure with uniform through holes.

[0013] In one of the embodiments, the heat exchange member is a finned heat exchanger, and the housing is further provided with a pipeline water control module for controlling the temperature of the liquid entering the finned heat exchanger.

[0014] In one of the embodiments, the heating member is a coil electric heater.

[0015] In one of the embodiments, the housing is a cabinet enclosed by thermal insulation materials, the air inlet is arranged on a side plate of the cabinet, the air outlet is arranged on a back plate adjacent to the side plate of the cabinet, the fan is installed on the inner side of the side plate, and the heat exchange member and the heating member are arranged in parallel to the side plate in the cabinet.

[0016] In a second aspect, the embodiments of the present application provide a temperature control method based on the temperature control device of any one of the first aspect, and the control method includes the following steps:

[0017] S1: Real-time monitoring of the air inlet airflow temperature by the first temperature sensor, and the electric control module controls the heat exchange member to heat or cool the flowing gas according to the air inlet airflow temperature;

[0018] S2: Real-time monitoring of the airflow temperature out of the heat exchange member by the second temperature sensor, and the electric control module controls the start and stop of the heating member, the opening and closing of the first flow guide, and the opening and closing of the second flow guide according to the airflow temperature out of the heat exchange member.

[0019] In one of the embodiments, the step S1 includes the following steps:

[0020] S101: If the air inlet airflow temperature is greater than or equal to the preset target temperature, the electric control module controls the heat exchange member to cool the flowing gas;

[0021] S102: If the temperature of the air flow at the air inlet is less than the preset target temperature, the electric control module controls the heat exchange element to heat the air flowing therethrough.

[0022] In one of the embodiments, the step S2 comprises the following steps:

[0023] S201: If the temperature of the air flow at the air inlet is greater than or equal to the preset target temperature, the electric control module controls the heating element to be closed, the first flow guide element to be opened, and the second flow guide element to be closed.

[0024] S202: If the temperature of the air flow at the air inlet is less than the preset target temperature, the electric control module controls the heating element to be started, the first flow guide element to be closed, and the second flow guide element to be opened.

[0025] In a third aspect, the embodiments of the present application provide a temperature control method for controlling the air flowing into an air inlet, then sequentially flowing through a heat exchange element, a heating element, a first flow guide element or a second flow guide element, a mixing element, and a uniform flow element, and finally flowing out of an air outlet to reach a target temperature T X , the temperature control method comprising the following steps:

[0026] setting a target temperature T X and a target temperature range Δt;

[0027] monitoring a first temperature T1 of the air flowing into the air inlet, and determining the relationship between the first temperature T1 and the target temperature T X ;

[0028] if T1 > T X + Δt, starting the heat exchange element to cool the air flowing therethrough;

[0029] if T1 < T X - Δt, starting the heat exchange element to heat the air flowing therethrough;

[0030] monitoring a second temperature T2 of the air flowing out of the heat exchange element, and determining the relationship between the second temperature T2 and the target temperature T X ;

[0031] if T2 ≥ T X - Δt, closing the heating element and opening the first flow guide element;

[0032] if T2 < T X - Δt, starting the heating element, closing the first flow guide element, and opening the second flow guide element.

[0033] In one of the embodiments, the target temperature range Δt < 2 (°C).

[0034] The temperature control device and control method of this application have at least the following beneficial effects: the overall structure is simple, it is applicable to a wide range of environments requiring temperature control, and it has strong scalability; through the special design of the internal heating element and air duct guide structure of the temperature control device, the device can adaptively judge the gas temperature rise and fall and change the flow direction according to different inlet air temperatures when it is under different ambient temperatures, with a high degree of autonomy and obvious energy-saving effect; at the same time, it can effectively improve the uniformity of air outlet air temperature and flow rate, and realize precise control of the temperature of the environment requiring temperature control. Attached Figure Description

[0035] Figure 1 This is a three-dimensional structural diagram of a temperature control device according to an embodiment of this application, taken from one direction.

[0036] Figure 2 for Figure 1 A three-dimensional structural diagram of the temperature control equipment from another direction;

[0037] Figure 3 for Figure 1 A top-view diagram of the internal structure of a medium-temperature control device;

[0038] Figure 4 for Figure 3 Schematic diagram of the structure of the intermediate flow mixing component;

[0039] Figure 5 This is a schematic flowchart of a temperature control method according to an embodiment of this application;

[0040] Figure 6 This is a schematic flowchart of a temperature control method according to another embodiment of this application.

[0041] The components in the diagram are labeled as follows: housing 10; air inlet 11; air outlet 12; first sub-air duct 13; second sub-air duct 14; cabinet door 15; partition 16; fan 20; heat exchanger 30; heating element 40; first flow guide 50; second flow guide 60; mixing element 70; flow equalization element 80; electrical control module 90; pipeline water control module 100. Detailed Implementation

[0042] The technical solution of this application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to limit the implementation of this application.

[0044] In the description of this application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0045] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0046] This application provides a temperature control device that can be installed in an environment requiring temperature control. It continuously outputs a stable airflow with consistent temperature and velocity to regulate the temperature of the environment, thereby meeting the temperature control requirements of various devices within that environment. Please refer to... Figures 1 to 3 The temperature control device includes a housing 10, an air inlet 11 and an air outlet 12 on the housing 10, and an air duct connecting the air inlet 11 and the air outlet 12 inside the housing 10.

[0047] The housing 10 can be a rectangular cabinet formed by insulation material. The air inlet 11 is located on the side panel of the cabinet, and the air outlet 12 can be located on the back panel of the cabinet adjacent to the side panel. For ease of understanding, ... Figure 3 Taking the display angle of the temperature control equipment as an example, the side of the housing 10 facing the observer is defined as the top side of the housing 10, the side of the housing 10 with the air inlet 11 is defined as the left side of the housing 10, the side of the housing 10 with the air outlet 12 is defined as the rear side of the housing 10, the side opposite to the top side of the housing 10 is defined as the bottom side of the housing 10, the side opposite to the left side of the housing 10 is defined as the right side of the housing 10, and the side opposite to the rear side of the housing 10 is defined as the front side of the housing 10. That is, the airflow receives the gas in the environment to be temperature controlled from the air inlet 11 on the left side of the housing 10 and enters the housing 10, and the gas inside the housing 10 is delivered into the environment to be temperature controlled from the air outlet 12 on the rear side of the housing 10. Preferably, the front side of the housing 10 may be provided with an openable cabinet door 15 for easy maintenance of the components inside the housing 10.

[0048] The air duct comprises a first sub-air duct 13 and a second sub-air duct 14, the first sub-air duct 13 is communicated with the air inlet 11, the second sub-air duct 14 is communicated with the air outlet 12, the first sub-air duct 13 is communicated with the second sub-air duct 14 through the first flow guide 50 or the second flow guide 60. The first flow guide 50 and the second flow guide 60 both have two states of opening and closing, by controlling the opening and closing of the first flow guide 50 and the second flow guide 60, the gas in the first sub-air duct 13 can selectively flow into the second sub-air duct 14 through the first flow guide 50 or the second flow guide 60. Wherein, the first flow guide 50 and the second flow guide 60 are adjacent and form a preset included angle, so that when the first flow guide 50 is closed, the gas flow in the first sub-air duct 50 can be converged to the second flow guide 60 and disturbed.

[0049] Specifically, a plurality of partitions 16 can be arranged in the shell 10, the partitions 16 cooperate with the side wall of the shell 10 to form the first sub-air duct 13 and the second sub-air duct 14. One of the partitions 16 extends from the rear side of the shell 10 to the front side of the shell 10 to separate the first sub-air duct 13 and the second sub-air duct 14, one end of the first flow guide 50 is connected with the partition 16 and the other end is inclined to the right side of the shell 10, the second flow guide 60 is connected to the other end of the first flow guide 50 and is arranged parallel to the direction from the left side to the right side of the shell 10, so that the first sub-air duct 13 is formed between the air inlet 11 on the left side of the shell 10 and the first flow guide 50, and the second sub-air duct 14 is formed between the second flow guide 60 and the air outlet 12 on the rear side of the shell 10. At this time, the first flow guide 50 and the second flow guide 60 are arranged at an obtuse angle, and the second flow guide 60 has a spacing between the front side of the shell 10 through which the gas can pass, when the first flow guide 50 is closed, the gas flowing to the first flow guide 50 can be guided to the space between the second flow guide 60 and the front side of the shell 10, because the cross-sectional size of the first sub-air duct 13 is larger and the cross-sectional size between the second flow guide 60 and the front side of the shell 10 is smaller, the gas is extruded to a certain extent when the flow direction changes, and the disturbance effect of the gas can fully exchange heat and mix temperature, so that the gas temperature is uniformized. The partition 16 is preferably a polyurethane foaming layer structure, which has good heat insulation performance, can make the gas in the first sub-air duct 13 and the second sub-air duct 14 exchange heat independently, and avoid the influence of secondary heat exchange of other components in the shell 10 on the gas in the first sub-air duct 13 and the second sub-air duct 14, so as to affect the temperature of the air inlet and outlet of the equipment.

[0050] In the shown embodiment, the first flow guide 50 and the second flow guide 60 can each be a structure with actively rotatable flow guide louvers, which are provided with a plurality of actively rotatable louvers arranged in parallel. When the plurality of louvers are rotated to abut against each other at the side edges of adjacent louvers, the gas cannot pass through, and the flow guide louvers are in a closed state. When the plurality of louvers are rotated to form slots between adjacent louvers, the gas can pass through the slots, and the flow guide louvers are in an open state, thereby achieving the blocking or connecting effect of the gas. Of course, in other embodiments, the first flow guide 50 and the second flow guide 60 can also be provided as the same baffle plate rotatable about an axis. When the baffle plate is rotated to extend along the front-rear direction of the shell 10, the second sub-air duct 14 is in communication with the first sub-air duct 13 in the front-rear direction of the shell 10. When the baffle plate is rotated to extend along the left-right direction of the shell 10, the second sub-air duct 14 is in communication with the first sub-air duct 13 in the left-right direction of the shell 10, thereby achieving the blocking or connecting of the gas. Specifically, the structure with actively rotatable flow guide louvers has a window frame, and a plurality of rotatable louvers are arranged in parallel in the window frame, i.e., the end portion of the louver is provided with a rotating shaft, and the louver is rotatably connected to the window frame through the rotating shaft. There is also a reciprocating rod, which connects all the louvers. When the reciprocating rod moves, the louvers will swing, so that the louvers can be rotated to a preset position. There is also a motor driving mechanism, such as a motor, a crank, and a connecting rod, which is connected to the reciprocating rod and can drive the reciprocating rod to move reciprocally, so that the louvers are rotated to the preset position, thereby achieving the blocking or connecting effect of the gas. The structure with electrically swingable flow guide louvers can also be other structures that can achieve the same function, which is not limited here.

[0051] The first sub-air duct 13 is sequentially provided with a fan 20, a heat exchange member 30, and a heating member 40. The fan 20 provides power for the gas flowing in the shell 10, i.e., the fan 20 can provide power for the gas to flow out of the air outlet. The heat exchange member 30 and the heating member 40 are used for cooling or heating treatment of the flowing gas. The fan 20 can be fixedly arranged in the inner side of the side plate on the left side of the shell 10 and correspond to the air inlet 11. The heat exchange member 30 and the heating member 40 are arranged in the cabinet parallel to the side plate on the left side of the shell 10.

[0052] More specifically, the fan 20 is preferably a centrifugal fan 20, which has the characteristics of large air volume, low noise, stable operation, etc. The outlet side and the suction side of the fan 20 each have sufficient space to meet the air volume requirement of the equipment air duct.

[0053] The heat exchange member 30 is preferably a liquid-cooled finned heat exchanger. The housing 10 is further provided with a pipeline water control module 100, and the heat exchange member 30 is in communication with the pipeline water control module 100. The pipeline water control module 100 can control the flow of chilled water in the heat exchanger pipe, so that the temperature of the air flow outside the heat exchanger pipe is reduced to a certain set temperature; or the pipeline water control module 100 can heat the chilled water in the pipe, so that the temperature of the air flow outside the heat exchanger pipe is raised to a certain set temperature.

[0054] The heating member 40 is preferably a coil pipe type electric heater, which can electrically heat the gas cooled or heated to a certain set temperature by the heat exchange member 30, and control the heating power to make the overall average temperature of the gas meet the set requirements.

[0055] The second sub-air duct 14 is provided with a mixing flow member 70 and a uniform flow member 80. The mixing flow member 70 can be arranged in the middle of the second sub-air duct 14 to homogenize the temperature of the gas flowing therethrough; and the uniform flow member 80 can be arranged at the air outlet 12 to homogenize the flow rate of the gas flowing therethrough. Both the mixing flow member 70 and the uniform flow member 80 can be in a flat plate structure, and the size of the uniform flow member 80 can be adapted to the cross-sectional size of the second sub-air duct 14. The mixing flow member 70 covers the air outlet 12, so that all the gas in the second sub-air duct 14 flows through the mixing flow member 70 and the uniform flow member 80, thereby improving the uniformity of the temperature and flow rate of the air outlet 12.

[0056] In the illustrated embodiment, referring to Figure 4 , the mixing flow member 70 can be provided with four mixing flow zones, which are separated in a cross shape, and each of the mixing flow zones is provided with a plurality of air slots arranged in parallel and at intervals, and the air slots in adjacent two mixing flow zones are arranged vertically. In this way, the temperature and flow rate of the gas flowing through the mixing flow member 70 can be mixed and distributed through the air slots arranged in different directions on the plurality of mixing flow zones, thereby improving the uniformity of the gas temperature.

[0057] The uniform flow member 80 can be provided with a plurality of air holes, and the plurality of air holes are uniformly distributed on the uniform flow member 80 and have the same size and shape. In this way, the flow resistance of the air holes with the same size and shape and uniformly distributed is provided to homogenize the flow rate of the gas flowing therethrough, thereby making the air outlet uniform at each part of the air outlet 12.

[0058] It should be noted that in the selection of the heat exchange member 30 and the heating member 40, the heat exchange member 30 can also be selected from a heat storage type heat exchanger, a mixed type heat exchanger, etc., and the heating member 40 can also be selected from a hollow plate heater, a wire mesh heater, etc., as long as the temperature regulation requirements are met. In addition, the structures of the uniform flow member 80 and the mixing flow member 70 are not fixed forms, and according to the different design of the air duct structure, the number, size and shape of the air holes and air slots of the uniform flow member 80 and the mixing flow member 70 can be designed accordingly, as long as the uniformity of the temperature and flow rate of the gas is met.

[0059] The temperature control device further comprises an electric control module 90, and a first temperature sensor and a second temperature sensor are respectively arranged on the air outlet side of the fan 20 and the air outlet side of the heat exchange member 30, and the electric control module 90 is electrically connected with the fan 20, the heat exchange member 30, the heating member 40, the first temperature sensor, the second temperature sensor, the first flow guide member 50 and the second flow guide member 60. The electric control module 90 is configured to control the heat exchange member 30 to heat or cool the gas flowing therethrough according to the measured temperature of the first temperature sensor, and control the start-stop of the heating member 40, the opening and closing of the first flow guide member 50 and the opening and closing of the second flow guide member 60 according to the measured temperature of the second temperature sensor.

[0060] To enable the temperature control device to be self-adapted to different external temperatures to maintain the stability of the output air flow temperature, please refer to Figure 5 The embodiment of the present application also provides a temperature control method based on the above-mentioned temperature control device, and the control method comprises the following steps:

[0061] S1: The air flow temperature at the air inlet 11 is monitored in real time by the first temperature sensor, and the electric control module 90 controls the heat exchange member 30 to heat or cool the gas flowing therethrough according to the air flow temperature at the air inlet 11;

[0062] S2: The air flow temperature flowing out of the heat exchange member 30 is monitored in real time by the second temperature sensor, and the electric control module 90 controls the start-stop of the heating member 40, the opening and closing of the first flow guide member 50 and the opening and closing of the second flow guide member 60 according to the air flow temperature flowing out of the heat exchange member 30.

[0063] The step S1 specifically comprises:

[0064] S101: If the air flow temperature at the air inlet 11 is greater than or equal to a preset target temperature, the electric control module 90 controls the heat exchange member 30 to start to cool the gas flowing therethrough;

[0065] S102: If the air flow temperature at the air inlet 11 is less than the preset target temperature, the electric control module 90 controls the heat exchange member 30 to heat the gas flowing therethrough.

[0066] Under the working of the fan 20, the ambient air enters the first sub-air duct 13 from the air inlet 11, the first temperature sensor arranged at the air outlet side of the fan 20 monitors the temperature of the gas entering the first sub-air duct 13 in real time and transmits to the electric control module 90, the electric control module 90 monitors and judges according to the air flow temperature of the air inlet 11. When the air flow temperature of the air inlet 11 is greater than or equal to the preset target temperature (the preset target temperature is generally the middle value of the required temperature range of the temperature-controlled environment), the pipeline water control module 100 can control the flow of chilled water in the pipe to make the gas flowing through the heat exchange with the heat exchange element 30 to be cooled; when the air flow temperature of the air inlet 11 is less than the preset target temperature, the pipeline water control module 100 can heat the chilled water in the pipe and then control the water flow in the pipe to make the gas flowing through the heat exchange with the heat exchange element 30 to be heated.

[0067] The step S2 specifically comprises:

[0068] S201: If the air flow temperature flowing through the heat exchange element 30 is greater than or equal to the preset target temperature, the electric control module 90 controls the heating element 40 to be closed, the first flow guide element 50 to be opened, and the second flow guide element 60 to be closed.

[0069] S202: If the air flow temperature flowing through the heat exchange element 30 is less than the preset target temperature, the heating element 40 is controlled to be started, the first flow guide element 50 is controlled to be closed, and the second flow guide element 60 is controlled to be opened.

[0070] The gas in the first sub-air duct 13 flows through the heat exchange element 30, and the second temperature sensor arranged on the heat exchange element 30 monitors the air flow temperature flowing through the heat exchange element 30 in real time and transmits to the electric control module 90, the electric control module 90 monitors and judges according to the air flow temperature flowing through the heat exchange element 30. When the air flow temperature flowing through the heat exchange element 30 is greater than or equal to the preset target temperature, the electric control module 90 controls the heating element 40 to be closed, the first flow guide element 50 to be opened, and the second flow guide element 60 to be closed. Since the heat exchange element 30 is a liquid-cooled finned heat exchanger, the change of the air temperature rising and falling is relatively stable and will not produce large fluctuations, at this time the gas can directly enter the second sub-air duct 14 from the first flow guide element 50, the mixing element 70 and the flow uniformizing element 80 in the second sub-air duct 14 can further improve the temperature and uniformity of the flow rate of the gas flowing through, and finally the gas flows out from the air outlet 12 to the target point, completing the whole temperature control process.

[0071] When the temperature of the gas flowing through the heat exchange element 30 is less than the preset target temperature, the electric control module 90 controls the heating element 40 to start, and the heating element 40 compensates and heats the gas flowing through the heat exchange element 30. Since the heating element 40 is an electric heater, the gas temperature changes greatly, and the overall temperature field will be uneven. The mixing element 70 has limited temperature balancing capacity, and if the gas directly enters the second sub-air duct 14 from the first guide element 50, the air temperature at each outlet of the air outlet 12 will be uneven, affecting the temperature control effect. At this time, the electric control module 90 controls the first guide element 50 to close and the second guide element 60 to open. The gas is guided to the front side of the shell 10 between the first guide element 50 and the second guide element 60 to change direction and compress when flowing to the first guide element 50. The gas is mixed in temperature during the change of flow direction and extrusion, and a vortex is formed in front of the second guide element 60. At this time, the disturbance effect of the gas is obvious, which can make the gas temperature uniform. Then the gas enters the second sub-air duct 14 from the second guide element 60, and the mixing element 70 and the flow equalizing element 80 in the second sub-air duct 14 can further improve the uniformity of the temperature and flow rate of the flowing gas. Finally, the gas flows out through the air outlet 12 to the target point, completing the entire temperature control process.

[0072] Since the required temperature of the environment to be temperature-controlled is generally a range value, in order to reduce energy consumption, a certain range of the preset target temperature can be given, so that the temperature control device outputs the gas temperature within the required temperature range of the environment to be temperature-controlled. Based on this, please refer to Figure 6 , the embodiment of the application also provides a temperature control method for controlling the gas entering the air inlet 11, sequentially passing through the heat exchange element 30, the heating element 40, the first guide element 50 or the second guide element 60, the mixing element 70, and the flow equalizing element 80, and then flowing out from the air outlet to reach the target temperature T X , the temperature control method comprises the following steps:

[0073] setting a target temperature T X and a target temperature range Δt;

[0074] monitoring the first temperature T1 of the gas entering the air inlet, and judging the relationship between the first temperature T1 and the target temperature T X ;

[0075] if T1>T X +Δt, the heat exchange element is started to cool the gas flowing through;

[0076] if T1 X -Δt, the heat exchange element is started to heat the gas flowing through;

[0077] monitoring the second temperature T2 of the gas leaving the heat exchange element, and judging the relationship between the second temperature T2 and the target temperature T X ;

[0078] if T2≥TX -Δt, then the heating element is started, the first flow guide is closed, and the second flow guide is opened.

[0079] If T2 X -Δt, then the heating element is started, the first flow guide is closed, and the second flow guide is opened.

[0080] Preferably, the target temperature range Δt < 2 (°C).

[0081] In summary, the temperature control device and control method of the present application, through the special design of the internal heating element and the air duct structure, can adaptively judge the temperature rising and falling treatment and the flow direction change of the gas according to the different air inlet temperature when the device is in different ambient temperature, and has high degree of autonomy and obvious energy saving effect. At the same time, it can effectively improve the uniformity of the air flow temperature and flow rate of the air outlet 12, and realize the precise control of the temperature of the temperature-controlled environment.

[0082] It should be noted that in this document, the terms "comprising", "including", or any other variant thereof are intended to cover non-exclusive inclusions, so that processes, methods, articles or devices including a series of elements not only include those elements, but also include other elements not explicitly listed, or include elements inherent to such processes, methods, articles or devices. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0083] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A temperature control device, comprising a housing, wherein the housing has an air inlet and an air outlet, and an air duct communicating with the air inlet and the air outlet is provided inside the housing, characterized in that, The air duct includes a first sub-air duct and a second sub-air duct. The first sub-air duct is connected to the air inlet, and the second sub-air duct is connected to the air outlet. The first sub-air duct is connected to the second sub-air duct through a first guide member or a second guide member. The first guide member is disposed opposite to the air inlet, and the second guide member is disposed opposite to the air outlet. There is a gap between the second guide member and the housing on the side opposite to the air outlet that allows gas to pass through. The first guide member and the second guide member are adjacent to each other and form a preset angle so that when the first guide member is closed, the airflow in the first sub-air duct can be converged to the second guide member and a disturbance can be generated. A fan, a heat exchanger and a heating element are sequentially arranged in the first sub-air duct. A first temperature sensor and a second temperature sensor are respectively provided on the air outlet side of the fan and the air outlet side of the heat exchanger. The temperature control device further includes an electronic control module, which is configured to: control the heat exchanger to heat or cool the flowing gas according to the measured temperature of the first temperature sensor, and control the start and stop of the heating element, the opening and closing of the first flow guide and the opening and closing of the second flow guide according to the measured temperature of the second temperature sensor.

2. The temperature control device according to claim 1, characterized in that, Both the first and second flow guides have structures with actively rotatable flow guide louvers. The electronic control module controls the rotation of the flow guide louvers of the first and second flow guides to allow or block the passage of gas.

3. The temperature control device according to claim 1, characterized in that, The second sub-duct is equipped with a mixing element to homogenize the temperature of the flowing gas. The mixing element has a flat plate structure and includes four mixing zones divided by a cross. Each mixing zone has multiple parallel and spaced air slots. The air slots on two adjacent mixing zones are arranged vertically.

4. The temperature control device according to claim 1, characterized in that, The air outlet is equipped with a flow equalization component to homogenize the flow velocity of the passing gas. The flow equalization component has a flat plate structure with uniform through holes.

5. The temperature control device according to claim 1, characterized in that, The heat exchanger is a finned heat exchanger, and the housing is also equipped with a pipeline water control module, which controls the temperature of the liquid entering the finned heat exchanger.

6. The temperature control device according to claim 1, characterized in that, The heating element is a coil-type electric heater.

7. The temperature control device according to claim 1, characterized in that, The housing is a cabinet made of thermal insulation material. The air inlet is located on the side panel of the cabinet, the air outlet is located on the back panel of the cabinet adjacent to the side panel, the fan is installed inside the side panel, and the heat exchanger and the heating element are arranged in the cabinet parallel to the side panel.

8. A temperature control method, characterized in that, Based on the temperature control device as described in any one of claims 1-7, the control method includes the following steps: S1: The temperature of the airflow at the inlet is monitored in real time by the first temperature sensor, and the electronic control module controls the heat exchanger to heat up or cool down the airflow based on the airflow temperature at the inlet. S2: The temperature of the airflow exiting the heat exchanger is monitored in real time by the second temperature sensor. The electronic control module controls the start and stop of the heating element, the opening and closing of the first guide element and the opening and closing of the second guide element according to the temperature of the airflow exiting the heat exchanger.

9. The temperature control method according to claim 8, characterized in that, Step S1 includes the following steps: S101: If the airflow temperature at the inlet is greater than or equal to the preset target temperature, the electronic control module controls the heat exchanger to start and cool the flowing gas. S102: If the airflow temperature at the inlet is lower than the preset target temperature, the electronic control module controls the heat exchanger to heat the flowing gas.

10. The temperature control method according to claim 9, characterized in that, Step S2 includes the following steps: S201: If the temperature of the airflow passing through the heat exchanger is greater than or equal to the preset target temperature, the electronic control module controls the heating element to close, the first guide element to open, and the second guide element to close. S202: If the temperature of the airflow passing through the heat exchanger is less than the preset target temperature, the electronic control module controls the heating element to start, the first guide to close, and the second guide to open.

11. A temperature control method, characterized in that, Based on the temperature control device according to any one of claims 1-7, the temperature control method includes the following steps: Setting a target temperature T X and a target temperature range Δt; monitoring a first temperature T1 of the gas entering the air inlet, judging the relationship between the first temperature T1 and a target temperature T X ; If T1 > T X + Δt, the heat exchange element is started to cool the gas flowing therethrough. If T1 < T X - Δt, the heat exchange element is activated to heat the gas flowing therethrough. monitoring a second temperature T2 of the gas leaving the heat exchanging member, and determining the relationship between the second temperature T2 and the target temperature T X ; If T2≥T X -Δt, then turn off the heating element and turn on the first flow directing element. If T2 < T X - At, then start the heating element, close the first flow guide, open the second flow guide.

12. The temperature control method according to claim 11, characterized in that, The target temperature range Δt < 2 (°C).

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