Temperature control system and test sorting equipment

Abstract

The utility model relates to a temperature control system and a test sorting device, comprising a temperature control module comprising a first compressor, a first heat exchanger, a first throttling element, a load heat exchanger and a second heat exchanger; the heat exchange module comprises a second compressor, a first condenser, a second throttling element and a first heat exchanger which are sequentially communicated to form a first circulation loop; the switching mechanism is used for switching the temperature control system between a heating mode and a refrigerating mode; when the temperature control system is in a refrigeration mode, the first compressor, the first heat exchanger, the first throttling element and the load heat exchanger are sequentially communicated to form a refrigeration circulation loop; when the temperature control system is in a heating mode, the first compressor, the load heat exchanger, the first heat exchanger, the first throttling element and the second heat exchanger are sequentially communicated to form a heating circulation loop; the refrigerating circulation loop and the heating circulation loop are both thermally coupled with the first circulation loop through the first heat exchanger, and the heating circulation loop is thermally coupled with the communicating pipeline through the second heat exchanger.

Description

TECHNICAL FIELD

[0001] The utility model relates to temperature control technical field especially relates to a temperature control system and test sorting equipment. BACKGROUND

[0002] With the development of economy and social progress, electronic components (such as chips) are more and more widely used in people's life. Electronic components need to be tested on test sorting equipment before leaving the factory to test their stability and reliability under high and low temperature environments.

[0003] At present, test sorting equipment includes a refrigeration system and a heating system arranged independently of each other. The refrigeration system acts as a cold source, and the heating system acts as a heat source. The cold source and the heat source control the temperature of electronic components through cold and hot confrontation. This temperature control method requires adjusting the cooling logic of the refrigeration system and the heating logic of the heating system at the same time. The control logic is relatively complex, and the cooperation of the refrigeration system and the heating system is prone to cause temperature fluctuation and unstable temperature control problems. UTILITY MODEL CONTENTS

[0004] Therefore, it is necessary to provide a temperature control system and test sorting equipment with simple control logic and stable temperature control to solve the problems of complex control logic and unstable temperature control of the traditional temperature control method.

[0005] A temperature control system comprises:

[0006] A temperature control module comprises a first compressor, a first heat exchanger, a first throttling device, a load heat exchanger and a second heat exchanger. The load heat exchanger is used for heat exchange with electronic components.

[0007] A heat exchange module comprises a second compressor, a first condenser, a second throttling device and the first heat exchanger connected in sequence to form a first circulation loop.

[0008] A switching mechanism is used to switch the temperature control system between heating mode and refrigeration mode.

[0009] When the temperature control system is in the refrigeration mode, the first compressor, the first heat exchanger, the first throttling device and the load heat exchanger are connected in sequence to form a refrigeration circulation loop. When the temperature control system is in the heating mode, the first compressor, the load heat exchanger, the first heat exchanger, the first throttling device and the second heat exchanger are connected in sequence to form a heating circulation loop.

[0010] The refrigeration cycle circuit and the heating cycle circuit are both thermally coupled with the first cycle circuit through the first heat exchanger, the first cycle circuit comprising a communication pipeline communicated between an output end of the second compressor and an input end of the second throttling device, and the heating cycle circuit is thermally coupled with the communication pipeline through the second heat exchanger.

[0011] In one of the embodiments, the communication pipeline is located between an output end of the first condenser and an input end of the second throttling device.

[0012] In one of the embodiments, the switching mechanism comprises a four-way valve, the four-way valve comprising a first valve port, a second valve port, a third valve port and a fourth valve port, the first valve port and the second valve port being connected with an output end and an input end of the first compressor respectively, the third valve port being connected with the first heat exchanger and the second heat exchanger, and the fourth valve port being connected with the load heat exchanger.

[0013] When the temperature control system is in the refrigeration mode, the first valve port is communicated with the third valve port, and the second valve port is communicated with the fourth valve port, so as to form the refrigeration cycle circuit; when the temperature control system is in the heating mode, the first valve port is communicated with the fourth valve port, and the second valve port is communicated with the third valve port, so as to form the heating cycle circuit.

[0014] In one of the embodiments, the temperature control module further comprises a first pipeline, a second pipeline and a third pipeline, the first pipeline connecting the first compressor and an input end of the first heat exchanger, the second pipeline connecting the input end of the first heat exchanger and the load heat exchanger, and the third pipeline connecting an output end of the first throttling device and the second heat exchanger.

[0015] When the temperature control system is in the refrigeration mode, the first pipeline is turned on, and the second pipeline and the third pipeline are turned off, the first compressor, the first pipeline, the first heat exchanger, the first throttling device and the load heat exchanger are sequentially communicated to form the refrigeration cycle circuit; when the temperature control system is in the heating mode, the first pipeline is turned off, and the second pipeline and the third pipeline are turned on, the first compressor, the load heat exchanger, the second pipeline, the first heat exchanger, the first throttling device, the third pipeline and the second heat exchanger are sequentially communicated to form the heating cycle circuit.

[0016] In one of the embodiments, the switching mechanism comprises a first control valve, the first control valve being installed on the first pipeline for controlling on-off of the first pipeline.

[0017] and / or

[0018] The switching mechanism further comprises a second control valve installed on the second pipeline for controlling the opening and closing of the second pipeline;

[0019] and / or

[0020] The switching mechanism further comprises a third control valve installed on the third pipeline for controlling the opening and closing of the third pipeline.

[0021] In one of the embodiments, the temperature control module further comprises a fourth pipeline and a third throttling device, the fourth pipeline connecting the input end of the first heat exchanger and the output end of the first compressor, and the third throttling device being arranged on the fourth pipeline.

[0022] When the temperature control system is in the heating mode, the third throttling device is connected in parallel with the load heat exchanger, and the opening degree of the third throttling device is adjustable to control the flow rate of the refrigerant entering the load heat exchanger.

[0023] In one of the embodiments, the temperature control module further comprises a fifth pipeline and a first one-way valve, the fifth pipeline connecting the output end of the second heat exchanger and the input end of the first compressor, and the first one-way valve being arranged on the fifth pipeline to prevent the reverse flow of the refrigerant from the first compressor to the second heat exchanger.

[0024] In one of the embodiments, the temperature control module further comprises a sixth pipeline and a second one-way valve, the sixth pipeline connecting the load heat exchanger and the output end of the first throttling device, and the second one-way valve being arranged on the sixth pipeline to prevent the reverse flow of the refrigerant from the load heat exchanger to the first throttling device.

[0025] In one of the embodiments, the temperature control module further comprises a second pipeline and a third pipeline, one end of the second pipeline being connected with the input end of the first heat exchanger, and the other end being connected with the sixth pipeline, one end of the third pipeline being connected with the sixth pipeline, and the other end being connected with the second heat exchanger.

[0026] The second pipeline and the sixth pipeline have a first intersection point, the third pipeline and the sixth pipeline have a second intersection point, and the second one-way valve is located between the first intersection point and the second intersection point.

[0027] When the temperature control system is in the heating mode, the first compressor, the load heat exchanger, the second pipeline, the first heat exchanger, the first throttling device, the third pipeline and the second heat exchanger are sequentially connected to form the heating circulation loop.

[0028] A test sorting device comprising a temperature control system as described above.

[0029] In the aforementioned temperature control system and testing and sorting equipment, when low-temperature control of electronic components is required, the control switching mechanism switches the temperature control system to cooling mode, the cooling loop operates, and the load heat exchanger acts as an evaporator for cooling the electronic components. Conversely, when high-temperature control of electronic components is required, the control switching mechanism switches the temperature control system to heating mode, the heating loop operates, and the load heat exchanger acts as a condenser for heating the electronic components. Compared to the existing technology that uses a combination of cooling and heating systems (requiring simultaneous adjustment of both cooling and heating logic) to control the high and low temperatures of electronic components, this application only requires control of the temperature control system's switching mechanism, resulting in simpler control logic. Furthermore, the temperature control system of this application can achieve high and low temperature control of electronic components on its own. Compared to the existing technology that uses a combination of cooling and heating systems, it is less prone to temperature fluctuations, provides more stable temperature control, and consumes less energy, making it more energy-efficient. Attached Figure Description

[0030] Figure 1 This is a refrigerant flow diagram of a temperature control system in cooling mode according to an embodiment of this application;

[0031] Figure 2 for Figure 1 The diagram shows the refrigerant flow direction when the temperature control system is in heating mode.

[0032] in, Figure 1 and Figure 2 The green arrow indicates that refrigerant is flowing in the pipeline, and the direction of the arrow indicates the direction of refrigerant flow.

[0033] Explanation of reference numerals in the attached figures:

[0034] 100. Temperature control system; 10. Temperature control module; 11. First compressor; 12. First heat exchanger; 13. First throttling element; 14. Load heat exchanger; 15. Second heat exchanger; 16. First dryer filter; 17. First pipeline; 18. Second pipeline; 19. Third pipeline; 110. Fourth pipeline; 120. Third throttling element; 130. Fifth pipeline; 140. Sixth pipeline; 20. Heat exchange module; 21. Second compressor; 22. First condenser ; 23. Second throttling element; 24. Connecting pipe; 25. Second dryer filter; 31. Four-way valve; 311. First valve port; 312. Second valve port; 313. Third valve port; 314. Fourth valve port; 32. First control valve; 33. Second control valve; 34. Third control valve; 35. First check valve; 36. Second check valve; A. Refrigeration cycle loop; B. Heating cycle loop; C. First cycle loop; E. First junction point; F. Second junction point. Detailed Implementation

[0035] In order to make the above object, characteristics and advantages of the present application more apparent, concrete embodiments of the present application will be described in detail with reference to the drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different manners without departing from the spirit of the present application. Those skilled in the art will appreciate the scope of the present application and can make similar modifications without departing from the spirit of the present application. Therefore, the present application is not limited by the embodiments disclosed below.

[0036] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements indicated thereby must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0037] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated thereby. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0038] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0040] It should be noted that when an element is referred to as "fixed to" or "provided on" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for illustrative purposes and are not the only embodiment.

[0041] Referring to Figure 1 and Figure 2 , an embodiment of the present application provides a temperature control system 100, comprising a temperature control module 10 and a heat exchange module 20. The heat exchange module 20 can exchange heat with the temperature control module 10, and the temperature control module 10 is used to exchange heat with electronic components to control the temperature of the electronic components.

[0042] The temperature control module 10 comprises a first compressor 11, a first heat exchanger 12, a first throttling device 13, a load heat exchanger 14 and a second heat exchanger 15. The load heat exchanger 14 is used to exchange heat with the electronic components. The heat exchange module 20 comprises a second compressor 21, a first condenser 22, a second throttling device 23 and the above-mentioned first heat exchanger 12 which are sequentially communicated to form a first circulation loop C.

[0043] Specifically, the temperature control system 100 further comprises a switching mechanism, which is used to switch the temperature control system 100 between a refrigeration mode and a heating mode. Referring to Figure 1 When the temperature control system 100 is in the refrigeration mode, the switching mechanism makes the first compressor 11, the first heat exchanger 12, the first throttling device 13 and the load heat exchanger 14 sequentially communicate to form a refrigeration circulation loop A. Referring to Figure 2 When the temperature control system 100 is in the heating mode, the switching mechanism makes the first compressor 11, the load heat exchanger 14, the first heat exchanger 12, the first throttling device 13 and the second heat exchanger 15 sequentially communicate to form a heating circulation loop B.

[0044] The refrigeration cycle loop A and the heating cycle loop B are both thermally coupled with the first cycle loop C through the first heat exchanger 12. That is, the refrigerants in the refrigeration cycle loop A and the heating cycle loop B can exchange heat with the refrigerant in the first cycle loop C through the first heat exchanger 12. Optionally, the first heat exchanger 12 is a double-channel heat exchanger. When the temperature control system 100 is in the refrigeration mode, the refrigerant of the refrigeration cycle loop A flows in one channel of the first heat exchanger 12, and the refrigerant of the first cycle loop C flows in the other channel. When the temperature control system 100 is in the heating mode, the refrigerant of the heating cycle loop B flows in one channel of the first heat exchanger 12, and the refrigerant of the first cycle loop C flows in the other channel.

[0045] The first cycle loop C includes a communication pipeline 24 which is communicated between the output end of the second compressor 21 and the input end of the second throttling device 23, and the heating cycle loop B is thermally coupled with the communication pipeline 24 through the second heat exchanger 15. That is, the refrigerant in the heating cycle loop B can exchange heat with the refrigerant in the communication pipeline 24 through the second heat exchanger 15. Optionally, the second heat exchanger 15 is a double-channel heat exchanger. The refrigerant of the heating cycle loop B flows in one channel of the second heat exchanger 15, and the refrigerant of the first cycle loop C flows in the other channel.

[0046] When the low-temperature control of the electronic components is needed, the control switching mechanism is controlled to make the temperature control system 100 in the refrigeration mode, and the refrigeration cycle loop A is formed, and the first cycle loop C is in working condition with the refrigeration cycle loop A. When the first cycle loop C is working, the refrigerant circulates in the second compressor 21, the first condenser 22, the second throttling device 23 and the first heat exchanger 12, and exchanges heat with the refrigerant in the refrigeration cycle loop A when the refrigerant flows through the first heat exchanger 12, so as to reduce the temperature of the refrigerant in the refrigeration cycle loop A. When the refrigeration cycle loop A is working, the refrigerant circulates in the first compressor 11, the first heat exchanger 12, the first throttling device 13 and the load heat exchanger 14, and exchanges heat with the electronic components when the refrigerant flows through the load heat exchanger 14, so as to control the low temperature of the electronic components. Since the first heat exchanger 12 is the evaporator of the first cycle loop C and the condenser of the refrigeration cycle loop A, the first heat exchanger 12 is an evaporative condenser at this time, and the first cycle loop C is a high-temperature stage cycle loop, and the refrigeration cycle loop A is a low-temperature stage cycle loop.

[0047] When high temperature control of the electronic components is needed, the switching mechanism is controlled to make the temperature control system 100 in the heating mode, at this time the heating cycle loop B is formed, and the first cycle loop C and the heating cycle loop B are in working state. When the first cycle loop C is working, the refrigerant circulates and flows in the second compressor 21, the first condenser 22, the second throttling device 23 and the first heat exchanger 12. When the heating cycle loop B is working, the refrigerant circulates and flows in the first compressor 11, the load heat exchanger 14, the first heat exchanger 12, the first throttling device 13 and the second heat exchanger 15. The refrigerant exchanges heat with the electronic components when flowing through the load heat exchanger 14 to control the high temperature of the electronic components, and the refrigerant exchanges heat with the refrigerant in the communication pipeline 24 when flowing through the second heat exchanger 15. In this way, the temperature control module 10 improves the supercooling degree of the heat exchange module 20, thereby improving the refrigerating capacity of the first cycle loop C. The first heat exchanger 12 is used as the evaporator of the first cycle loop C and the condenser of the heating cycle loop B, at this time the first heat exchanger 12 is an evaporative condenser. Since the second heat exchanger 15 is used as the evaporator of the heating cycle loop B and the condenser of the first cycle loop C, at this time the second heat exchanger 15 is also an evaporative condenser.

[0048] The temperature control system 100 provided by the embodiment of the present application can switch to the heating mode when high temperature control of the electronic components is needed, and the heating cycle loop B is working, and the load heat exchanger 14 is used as the condenser to heat the electronic components. Compared with the prior art, in which the high and low temperature control of the electronic components is realized by cooperation of the refrigeration system and the heating system (the cooling logic of the refrigeration system and the heating logic of the heating system need to be adjusted at the same time), the present application only needs to control the switching mechanism of the temperature control system 100, and the control logic is simple. At the same time, the temperature control system 100 of the present application can realize the high and low temperature control of the electronic components itself, and compared with the prior art, the temperature fluctuation is not easy to cause, the temperature control is more stable, the energy consumption is smaller, and the energy saving is better.

[0049] It should be noted that the temperature control system 100 provided by the present application can be realized by adding the switching mechanism and the second heat exchanger 15 on the basis of the high temperature stage refrigeration module of the existing complex refrigeration system, and is easy to implement.

[0050] Specifically, continuing to refer to Figure 1 and Figure 2The communication pipeline 24 is located between the output end of the first condenser 22 and the input end of the second throttling device 23. It is conceived that in other embodiments, the communication pipeline 24 can also be located between the output end of the second compressor 21 and the input end of the first condenser 22, which is not limited herein.

[0051] Optionally, the temperature control module 10 further comprises a first drying filter 16, which is arranged between the first heat exchanger 12 and the first throttling device 13, for drying and filtering the refrigerant flowing from the first heat exchanger 12 to the first throttling device 13. The heat exchange module 20 comprises a second drying filter 25, which is arranged between the first condenser 22 and the second throttling device 23, for drying and filtering the refrigerant flowing from the first condenser 22 to the second throttling device 23.

[0052] In some embodiments, the switching mechanism comprises a four-way valve 31, which comprises a first valve port 311, a second valve port 312, a third valve port 313 and a fourth valve port 314. The first valve port 311 and the second valve port 312 are connected to the output end and the input end of the first compressor 11 respectively. The third valve port 313 is connected to the first heat exchanger 12 and the second heat exchanger 15. The fourth valve port 314 is connected to the load heat exchanger 14. Specifically, continuing to refer to Figure 1 When the temperature control system 100 is in the refrigeration mode, the first valve port 311 and the third valve port 313 are communicated, and the second valve port 312 and the fourth valve port 314 are communicated, to form a refrigeration cycle loop A; continuing to refer to Figure 2 When the temperature control system 100 is in the heating mode, the first valve port 311 and the fourth valve port 314 are communicated, and the second valve port 312 and the third valve port 313 are communicated, to form a heating cycle loop B.

[0053] It is to be noted that since the first heat exchanger 12 and the second heat exchanger 15 are both connected to the third valve port 313. However, when the first valve port 311 and the third valve port 313 are communicated, the refrigerant will not flow from the output end of the first compressor 11 to the second heat exchanger 15. And when the second valve port 312 and the third valve port 313 are communicated, the refrigerant will not flow from the second heat exchanger 15 to the first heat exchanger 12.

[0054] It is to be noted that in other embodiments, the four-way valve 31 can also be replaced by other valves, such as a five-way valve or two three-way valves, which is not limited herein. In the specific embodiment, the switching mechanism selects the four-way valve 31, which can simplify the structure of the temperature control system 100.

[0055] In some embodiments, the temperature control module 10 comprises a first pipe 17, a second pipe 18 and a third pipe 19. The first pipe 17 connects the first compressor 11 and the input end of the first heat exchanger 12, the second pipe 18 connects the input end of the first heat exchanger 12 and the load heat exchanger 14, and the third pipe 19 connects the output end of the first throttling device 13 and the second heat exchanger 15.

[0056] Continuing to refer to Figure 1 When the temperature control system 100 is in the cooling mode, the first pipe 17 is turned on, the second pipe 18 and the third pipe 19 are turned off, and the first compressor 11, the first pipe 17, the first heat exchanger 12, the first throttling device 13 and the load heat exchanger 14 are sequentially connected to form a cooling cycle loop A. Continuing to refer to Figure 2 When the temperature control system 100 is in the heating mode, the first pipe 17 is turned off, the second pipe 18 and the third pipe 19 are turned on, and the first compressor 11, the load heat exchanger 14, the second pipe 18, the first heat exchanger 12, the first throttling device 13, the third pipe 19 and the second heat exchanger 15 are sequentially connected to form a heating cycle loop B.

[0057] By providing that the temperature control module 10 comprises the first pipe 17, the second pipe 18 and the third pipe 19, the connection between the structures of the temperature control module 10 is facilitated, and at the same time, the switching between the cooling mode and the heating mode of the temperature control system 100 is facilitated.

[0058] One end of the first pipe 17 is connected to the input end of the first heat exchanger 12, and the other end is connected to the third valve port 313. The switching mechanism comprises a first control valve 32 installed on the first pipe 17 for controlling the on-off of the first pipe 17. In this way, when the third valve port 313 is in communication with the second valve port 312, the first pipe 17 is turned off by operating the first control valve 32, at which time the first heat exchanger 12 is disconnected from the third valve port 313, and the refrigerant cannot flow from the second heat exchanger 15 to the first heat exchanger 12. The first control valve 32 can be an electromagnetic valve or a manual valve.

[0059] The switching mechanism further comprises a second control valve 33 installed on the second pipe 18 for controlling the on-off of the second pipe 18. Furthermore, the switching mechanism further comprises a third control valve 34 installed on the third pipe 19 for controlling the on-off of the third pipe 19.

[0060] By providing the first control valve 32, the second control valve 33 and the third control valve 34, the switching between the cooling mode and the heating mode of the temperature control system 100 is facilitated.

[0061] It is conceivable that in other embodiments, the first control valve 32, the second control valve 33 and the third control valve 34 can be omitted, and other ways are adopted to control the opening and closing of the first pipeline 17, the second pipeline 18 and the third pipeline 19, which are not limited herein.

[0062] In some embodiments, the temperature control module 10 further comprises a fourth pipeline 110 and a third throttling device 120, the fourth pipeline 110 is connected to the input end of the first heat exchanger 12 and the output end of the first compressor 11, and the third throttling device 120 is arranged on the fourth pipeline 110. Specifically, one end of the fourth pipeline 110 is connected to the second pipeline 18, and the other end is connected to the fourth valve port 314. Continue to refer to Figure 2 When the temperature control system 100 is in the heating mode, the third throttling device 120 is connected in parallel with the load heat exchanger 14, and the opening degree of the third throttling device 120 is adjustable to control the flow of refrigerant of the load heat exchanger 14, thereby realizing stable control of the load temperature.

[0063] Specifically, the third throttling device 120 can adopt the following control logic to adjust the flow of refrigerant entering the load heat exchanger 14:

[0064] The high-temperature production temperature required by the electronic components is obtained, and the required value of the exhaust temperature of the first compressor 11 is calculated to obtain the operating frequency of the first compressor 11. The opening degree of the third throttling device 120 is adjusted to control the flow of refrigerant entering the load heat exchanger 14, thereby realizing stable adjustment of the load temperature.

[0065] Optionally, the third throttling device 120 can be a capillary tube, an electronic expansion valve, etc., which are not limited herein.

[0066] In some embodiments, the temperature control module 10 further comprises a fifth pipeline 130, and the switching mechanism further comprises a first one-way valve 35, the fifth pipeline 130 is connected to the output end of the second heat exchanger 15 and the input end of the first compressor 11, and the first one-way valve 35 is arranged on the fifth pipeline 130 to prevent the refrigerant from flowing back to the second heat exchanger 15 through the first compressor 11. Specifically, the end of the fifth pipeline 130 away from the second heat exchanger 15 is connected to the first pipeline 17, and the connection point of the fifth pipeline 130 and the first pipeline 17 is located between the first control valve 32 and the third valve port 313. Since the first one-way valve 35 is arranged on the fifth pipeline 130, when the first valve port 311 and the third valve port 313 are communicated, the refrigerant will not flow to the second heat exchanger 15 through the output end of the first compressor 11.

[0067] It is conceivable that in other embodiments, the temperature control module 10 can also omit the first one-way valve 35, and a control valve is arranged on the fifth pipeline 130 to control the opening and closing of the fifth pipeline 130 to prevent the refrigerant from flowing to the second heat exchanger 15 through the output end of the first compressor 11.

[0068] The temperature control module 10 further comprises a sixth pipeline 140, and the switching mechanism further comprises a second one-way valve 36. The sixth pipeline 140 is connected to the load heat exchanger 14 and the output end of the first throttling device 13, and the second one-way valve 36 is arranged on the sixth pipeline 140. When the temperature control system 100 is in the heating mode, the arrangement of the second one-way valve 36 prevents the refrigerant from flowing from the load heat exchanger 14 to the first throttling device 13, thereby ensuring the stability of the temperature control. When the temperature control module 10 is in the refrigeration mode, the second one-way valve 36 allows the refrigerant to flow from the first throttling device 13 to the load heat exchanger 14.

[0069] Further, referring to Figure 2 , the second pipeline 18 is connected to the load heat exchanger 14 through the sixth pipeline 140, and the third pipeline 19 is connected to the first throttling device 13 through the sixth pipeline 140. Specifically, the second pipeline 18 and the sixth pipeline 140 have a first intersection point E, the third pipeline 19 and the sixth pipeline 140 have a second intersection point F, and the second one-way valve 36 is arranged on the portion of the sixth pipeline 140 between the first intersection point E and the second intersection point F. In this way, when the temperature control system 100 is in the heating mode, the second one-way valve 36 does not interfere with the formation of the heating cycle loop B, and can also prevent the refrigerant from flowing in the reverse direction from the load heat exchanger 14 to the first throttling device 13.

[0070] It is conceivable that in other embodiments, the temperature control module 10 can also omit the second one-way valve 36, and instead arrange a control valve on the sixth pipeline 140 to control the opening and closing of the sixth pipeline 140, thereby preventing the refrigerant from flowing from the load heat exchanger 14 to the first throttling device 13.

[0071] The working principle of the above-mentioned temperature control system 100 is as follows:

[0072] Referring to Figure 1 , when the use temperature T of the load heat exchanger 14 is low, the first cycle loop C works. The first valve port 311 of the four-way valve 31 is in communication with the third valve port 313, the second valve port 312 is in communication with the fourth valve port 314, the first control valve 32 is open, and the second control valve 33 and the third control valve 34 are both closed. At this time, the refrigeration cycle loop A works, the third throttling device 120 does not participate in the adjustment, the load heat exchanger 14 exchanges heat with the electronic components, and the electronic components are controlled at a low temperature.

[0073] Referring to Figure 2When the use temperature T of the load heat exchanger 14 is high, the first circulation loop C works. The first valve port 311 of the four-way valve 31 communicates with the fourth valve port 314, the second valve port 312 communicates with the third valve port 313, the first control valve 32 is closed, the second control valve 33 and the third control valve 34 are both opened, at this time, the heating circulation loop B works, the third throttling device 120 participates in the adjustment of the refrigerant flow, the load heat exchanger 14 exchanges heat with the electronic components, and the electronic components are controlled at high temperature.

[0074] Another embodiment of the present application also provides a test sorting device comprising the temperature control system 100. Since the temperature control system 100 has the beneficial effects, correspondingly, the test sorting device comprising the temperature control system 100 has the same beneficial effects, which will not be described in detail here.

[0075] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described in detail, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present application.

[0076] The above-mentioned embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it should not be understood as the limitation of the scope of the present application. It should be pointed out that, for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A temperature control system, characterized in that, include: The temperature control module (10) includes a first compressor (11), a first heat exchanger (12), a first throttling element (13), a load heat exchanger (14), and a second heat exchanger (15); the load heat exchanger (14) is used for heat exchange with electronic components; The heat exchange module (20) includes a second compressor (21), a first condenser (22), a second throttling element (23), and the first heat exchanger (12) connected in sequence to form a first circulation loop (C); A switching mechanism is used to switch the temperature control system between heating mode and cooling mode; When the temperature control system is in the cooling mode, the first compressor (11), the first heat exchanger (12), the first throttling device (13), and the load heat exchanger (14) are connected in sequence to form a cooling cycle loop (A); when the temperature control system is in the heating mode, the first compressor (11), the load heat exchanger (14), the first heat exchanger (12), the first throttling device (13), and the second heat exchanger (15) are connected in sequence to form a heating cycle loop (B). The refrigeration cycle (A) and the heating cycle (B) are both thermally coupled to the first cycle (C) through the first heat exchanger (12). The first cycle (C) includes a connecting pipe (24) connecting the output end of the second compressor (21) and the input end of the second throttling device (23). The heating cycle (B) is thermally coupled to the connecting pipe (24) through the second heat exchanger (15).

2. The temperature control system according to claim 1, characterized in that, The connecting pipe (24) is located between the output end of the first condenser (22) and the input end of the second throttling device (23).

3. The temperature control system according to claim 1, characterized in that, The switching mechanism includes a four-way valve (31), which includes a first valve port (311), a second valve port (312), a third valve port (313), and a fourth valve port (314). The first valve port (311) and the second valve port (312) are respectively connected to the output end and the input end of the first compressor (11). The third valve port (313) is connected to the first heat exchanger (12) and the second heat exchanger (15). The fourth valve port (314) is connected to the load heat exchanger (14). When the temperature control system is in the cooling mode, the first valve port (311) is connected to the third valve port (313), and the second valve port (312) is connected to the fourth valve port (314) to form the cooling cycle loop (A); when the temperature control system is in the heating mode, the first valve port (311) is connected to the fourth valve port (314), and the second valve port (312) is connected to the third valve port (313) to form the heating cycle loop (B).

4. The temperature control system according to any one of claims 1-3, characterized in that, The temperature control module (10) further includes a first pipeline (17), a second pipeline (18) and a third pipeline (19). The first pipeline (17) is connected to the input end of the first compressor (11) and the first heat exchanger (12). The second pipeline (18) is connected to the input end of the first heat exchanger (12) and the load heat exchanger (14). The third pipeline (19) is connected to the output end of the first throttling device (13) and the second heat exchanger (15). When the temperature control system is in the cooling mode, the first pipe (17) is open, the second pipe (18) and the third pipe (19) are closed, and the first compressor (11), the first pipe (17), the first heat exchanger (12), the first throttling device (13) and the load heat exchanger (14) are connected in sequence to form the cooling cycle loop (A); when the temperature control system is in the heating mode, the first pipe (17) is closed, the second pipe (18) and the third pipe (19) are open, and the first compressor (11), the load heat exchanger (14), the second pipe (18), the first heat exchanger (12), the first throttling device (13), the third pipe (19) and the second heat exchanger (15) are connected in sequence to form the heating cycle loop (B).

5. The temperature control system according to claim 4, characterized in that, The switching mechanism includes a first control valve (32), which is installed on the first pipeline (17) and is used to control the opening and closing of the first pipeline (17); and / or The switching mechanism further includes a second control valve (33), which is installed on the second pipeline (18) and is used to control the opening and closing of the second pipeline (18); and / or The switching mechanism also includes a third control valve (34), which is installed on the third pipeline (19) and is used to control the opening and closing of the third pipeline (19).

6. The temperature control system according to any one of claims 1-3, characterized in that, The temperature control module (10) further includes a fourth pipeline (110) and a third throttling device (120). The fourth pipeline (110) is connected to the input end of the first heat exchanger (12) and the output end of the first compressor (11). The third throttling device (120) is located in the fourth pipeline (110). When the temperature control system is in the heating mode, the third throttling element (120) is connected in parallel with the load heat exchanger (14), and the opening degree of the third throttling element (120) is adjustable to control the flow rate of refrigerant entering the load heat exchanger (14).

7. The temperature control system according to any one of claims 1-3, characterized in that, The temperature control module (10) also includes a fifth pipeline (130) and a first check valve (35). The fifth pipeline (130) is connected to the output end of the second heat exchanger (15) and the input end of the first compressor (11). The first check valve (35) is located on the fifth pipeline (130) to prevent refrigerant from flowing back to the second heat exchanger (15) via the first compressor (11).

8. The temperature control system according to any one of claims 1-3, characterized in that, The temperature control module (10) also includes a sixth pipeline (140) and a second one-way valve (36). The sixth pipeline (140) is connected to the output end of the load heat exchanger (14) and the first throttling device (13). The second one-way valve (36) is located on the sixth pipeline (140) to prevent refrigerant from flowing back to the first throttling device (13) through the load heat exchanger (14).

9. The temperature control system according to claim 8, characterized in that, The temperature control module (10) further includes a second pipeline (18) and a third pipeline (19). One end of the second pipeline (18) is connected to the input end of the first heat exchanger (12), and the other end is connected to the sixth pipeline (140). One end of the third pipeline (19) is connected to the sixth pipeline (140), and the other end is connected to the second heat exchanger (15). The second pipeline (18) and the sixth pipeline (140) have a first junction point (E), the third pipeline (19) and the sixth pipeline (140) have a second junction point (F), and the second check valve (36) is located between the first junction point (E) and the second junction point (F); When the temperature control system is in the heating mode, the first compressor (11), the load heat exchanger (14), the second pipeline (18), the first heat exchanger (12), the first throttling device (13), the third pipeline (19) and the second heat exchanger (15) are connected in sequence to form the heating cycle loop (B).

10. A testing and sorting device, characterized in that, Including the temperature control system as described in any one of claims 1-9.

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