Heat exchange system and testing and sorting equipment

Abstract

The utility model relates to a heat exchange system and a testing and sorting device, including: a heat exchange circuit, including a heat exchanger, the heat exchanger is used to exchange heat with a test piece to control the temperature of the test piece; a liquid storage mechanism, which is independently arranged from the heat exchange circuit, and the air inlet and the liquid replenishing port of the liquid storage mechanism are both connected to the heat exchange circuit; the liquid storage mechanism has an exhaust port, and the gas in the heat exchange circuit can flow to the liquid storage mechanism through the air inlet and be discharged through the exhaust port; the heat exchange medium in the liquid storage mechanism can flow to the heat exchange circuit through the liquid replenishing port to replenish the heat exchange circuit. Since the liquid storage mechanism exists independently from the heat exchange circuit, after the gas in the heat exchange circuit is emptied and the heat exchange circuit is filled with the heat exchange medium, when the heat exchange circuit is working, the heat exchange medium in the liquid storage mechanism will not participate in the circulation of the heat exchange medium in the heat exchange circuit, and will not affect the heat exchange efficiency of the heat exchange circuit.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature control, in particular to a heat exchange system and testing and sorting equipment. Background Art

[0002] With the development of economy and the progress of society, electronic components are widely used in various fields. Before electronic components are put into use, their reliability and stability need to be tested under various ambient temperatures. The testing of electronic components is often completed by testing and sorting equipment, and the sorting test equipment often uses a heat exchange system to control the temperature of electronic components.

[0003] In the conventional technology, the heat exchange system includes a liquid storage tank, a pipeline and a heat exchanger which are connected in sequence to form a closed loop. The heat exchange medium can flow in the closed loop. When the heat exchange medium flows into the flow channel of the heat exchanger, it can exchange heat with the electronic components to control the temperature of the electronic components. The liquid storage tank can not only add liquid to the closed loop, but also exhaust the gas in the closed loop before operation, so that the heat exchange medium can circulate in the closed loop.

[0004] In the above method, the heat exchange medium must pass through the liquid storage tank when circulating. At this time, the liquid storage tank directly participates in the circulation of the heat exchange medium. When the liquid storage tank directly participates in the circulation, a large amount of liquid in the liquid storage tank will affect the heat exchange efficiency of the heat exchange system; at the same time, when the liquid storage tank directly participates in the circulation, it is necessary to apply insulation measures to the liquid storage tank to ensure that the liquid storage tank does not frost or condense under low temperature conditions, resulting in higher costs. Utility Model Content

[0005] Based on this, it is necessary to provide a heat exchange system and testing and sorting equipment that can improve the above problems.

[0006] A heat exchange system, comprising:

[0007] A heat exchange circuit, comprising a heat exchanger, wherein the heat exchanger is used to exchange heat with the test piece to control the temperature of the test piece;

[0008] The liquid storage mechanism is independently arranged from the heat exchange circuit, and the air inlet and the liquid replenishing port of the liquid storage mechanism are both connected to the heat exchange circuit; the liquid storage mechanism has an exhaust port, and the gas in the heat exchange circuit can flow to the liquid storage mechanism through the air inlet and be discharged through the exhaust port; the heat exchange medium in the liquid storage mechanism can flow to the heat exchange circuit through the liquid replenishing port to replenish the heat exchange circuit with liquid.

[0009] In one embodiment, the heat exchange circuit further includes an inlet pipeline and a return pipeline connected to each other, the inlet pipeline is connected to the input end of the heat exchanger, and the return pipeline is connected to the output end of the heat exchanger; the air inlet and the liquid replenishing port are both connected to the inlet pipeline or the return pipeline;

[0010] The heat exchange circuit is provided with a refrigeration module, and the refrigeration module is used to reduce the temperature of the heat exchange medium in the return liquid pipeline and then flow to the inlet liquid pipeline.

[0011] In one embodiment, the heat exchange circuit further includes a gas collecting mechanism, which is disposed on the liquid inlet pipeline or the liquid return pipeline, and is used to separate the heat exchange medium in the heat exchange circuit from gas and liquid;

[0012] The gas collecting mechanism is connected to the gas inlet to discharge the gas in the heat exchange circuit into the liquid storage mechanism; the liquid replenishing port is connected to the liquid inlet pipeline or the liquid return pipeline to enable the liquid storage mechanism to replenish heat exchange medium into the heat exchange circuit.

[0013] In one of the embodiments, the heat exchange circuit further includes a power pump, which is disposed on the liquid inlet pipeline or the liquid return pipeline and is used to provide power for the heat exchange medium to flow in the heat exchange circuit.

[0014] In one of the embodiments, the power pump is disposed on the liquid return pipeline, and the air inlet and the liquid replenishing port are both connected to a portion of the liquid return pipeline located between the power pump and the heat exchanger.

[0015] In one embodiment, the heat exchange system further includes a first pipeline and a first one-way valve, the first pipeline being connected between the air inlet of the liquid storage mechanism and the heat exchange circuit, the first one-way valve being arranged on the first pipeline and allowing the gas in the heat exchange circuit to flow into the liquid storage mechanism; and / or

[0016] The heat exchange system also includes a second pipeline and a second one-way valve. The second pipeline is connected between the liquid replenishing port of the liquid storage mechanism and the heat exchange circuit. The second one-way valve is arranged on the second pipeline and allows the heat exchange medium in the liquid storage mechanism to flow into the heat exchange circuit.

[0017] In one embodiment, the heat exchange system further includes a bypass pipeline, the liquid storage mechanism further includes a communication port, and the bypass pipeline connects the communication port of the liquid storage mechanism with the heat exchange circuit;

[0018] The positions of the liquid replenishing port, the communicating port and the air inlet on the liquid storage mechanism are successively increased.

[0019] In one embodiment, the air inlet is located at the top of the liquid storage mechanism, the liquid replenishing port is located at the bottom of the liquid storage mechanism, and the communication port is located in the middle of the liquid storage mechanism.

[0020] In one embodiment, the liquid storage mechanism further has a liquid adding port, and the liquid adding port and the exhaust port are independent of each other, or the liquid adding port and the exhaust port are shared.

[0021] A testing and sorting device comprises the heat exchange system as described above.

[0022] In the above-mentioned heat exchange system and test sorting equipment, the gas in the heat exchange circuit can flow to the liquid storage mechanism through the air inlet and be discharged through the exhaust port of the liquid storage mechanism. The heat exchange medium in the liquid storage mechanism can flow to the heat exchange circuit through the liquid filling port due to the pressure difference, so that the heat exchange medium can fill the heat exchange circuit, thereby ensuring the temperature control effect of the test piece. At the same time, since the liquid storage mechanism exists independently of the heat exchange circuit, after the gas in the heat exchange circuit is emptied and the heat exchange circuit is filled with the heat exchange medium, when the heat exchange circuit is working, the heat exchange medium in the liquid storage mechanism will not participate in the circulation of the heat exchange medium in the heat exchange circuit, and will not affect the heat exchange efficiency of the heat exchange circuit; and since the heat exchange medium in the liquid storage mechanism does not participate in the circulation of the heat exchange medium in the heat exchange circuit, the liquid storage mechanism will not frost under low temperature conditions, so there is no need to apply a large number of insulation measures for the liquid storage mechanism to keep it warm, reducing the preparation cost of the heat exchange system. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure of a heat exchange system provided in one embodiment of the present application;

[0024] Figure 2 A schematic diagram of the structure of a heat exchange system provided in another embodiment of the present application;

[0025] Figure 3 A schematic structural diagram of a heat exchange system provided in yet another embodiment of the present application.

[0026] Description of reference numerals:

[0027] 100. heat exchange system; 10. heat exchange circuit; 11. heat exchanger; 12. liquid inlet pipeline; 13. liquid return pipeline; 20. liquid storage mechanism; 21. air inlet; 22. liquid replenishing port; 23. exhaust port; 24. connecting port; 25. liquid filling port; 30. refrigeration module; 40. heating module; 50. gas collecting mechanism; 51. liquid inlet; 52. liquid outlet; 53. air outlet; 60. first pipeline; 70. first one-way valve; 80. second pipeline; 90. second one-way valve; 110. bypass pipeline; 120. power pump; 130. liquid level sensor. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean 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, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0034] See also Figure 1 In one embodiment of the present application, a heat exchange system 100 is provided, which is used to perform heat exchange with a device under test to control its temperature. Specifically, the device under test is a chip, and the heat exchange system 100 is used to perform heat exchange with the chip to control the temperature of the chip. Of course, in other embodiments, there is no limitation on the type of device under test for which the heat exchange system 100 is used to control the temperature, such as the device under test can also be other types of electronic components.

[0035] The heat exchange system 100 includes a heat exchange circuit 10, and the heat exchange circuit 10 includes a heat exchanger 11. The heat exchanger 11 is used to exchange heat with the test piece to control the temperature of the test piece. Specifically, when the temperature of the test piece needs to be controlled, the test piece is pressed onto the heat exchanger 11. When the heat exchange medium in the heat exchange circuit 10 flows through the heat exchanger 11, it can exchange heat with the test piece through the heat exchanger 11 to control the temperature of the test piece.

[0036] The heat exchange system 100 also includes a liquid storage mechanism 20, which is independently arranged from the heat exchange circuit 10. That is, the liquid storage mechanism 20 is not a part of the heat exchange circuit 10, but exists independently of the heat exchange circuit 10. Among them, the liquid storage mechanism 20 is used to store heat exchange medium. The liquid storage mechanism 20 has an air inlet 21 and a liquid replenishing port 22, and both the air inlet 21 and the liquid replenishing port 22 are connected to the heat exchange circuit 10. In this way, the liquid storage mechanism 20 is connected in parallel with the heat exchange circuit 10. Furthermore, the liquid storage mechanism 20 also has an exhaust port 23, and the gas in the heat exchange circuit 10 can flow to the liquid storage mechanism 20 through the air inlet 21 and be discharged through the exhaust port 23, and the heat exchange medium in the liquid storage mechanism 20 can flow to the heat exchange circuit 10 through the liquid replenishing port 22 to replenish the heat exchange circuit 10.

[0037] In the heat exchange system 100 provided in the embodiment of the present application, the gas in the heat exchange circuit 10 can flow to the liquid storage mechanism 20 through the air inlet 21 and be discharged through the exhaust port 23 of the liquid storage mechanism 20, and the heat exchange medium in the liquid storage mechanism 20 can flow to the heat exchange circuit 10 through the liquid replenishing port 22 due to the pressure difference, thereby ensuring that the heat exchange medium fills the heat exchange circuit 10, thereby ensuring the temperature control effect on the test piece. At the same time, since the liquid storage mechanism 20 exists independently of the heat exchange circuit 10, after the gas in the heat exchange circuit 10 is emptied and the heat exchange circuit 10 is filled with heat exchange medium, when the heat exchange circuit 10 is working, the heat exchange medium in the liquid storage mechanism 20 will not participate in the circulation of the heat exchange medium in the heat exchange circuit 10, and will not affect the heat exchange efficiency of the heat exchange circuit 10; and since the heat exchange medium in the liquid storage mechanism 20 does not participate in the circulation of the heat exchange medium in the heat exchange circuit 10, the liquid storage mechanism 20 will not frost under low temperature conditions, and therefore, there is no need to apply a large number of insulation measures to keep the liquid storage mechanism 20 warm, thereby reducing the preparation cost of the heat exchange system 100.

[0038] It should be noted here that when the heat exchange circuit 10 is working, the heat exchange medium in the liquid storage mechanism 20 will not participate in the circulation of the heat exchange medium in the heat exchange circuit 10, which means that when the heat exchange circuit 10 is working, if its operating temperature remains unchanged, the heat exchange medium in the liquid storage mechanism 20 will not participate in the circulation of the heat exchange medium in the heat exchange circuit 10. Only in special circumstances can the liquid storage mechanism 20 replenish the pipeline or store the expansion liquid. For example, when the pipeline of the heat exchange circuit 10 leaks, the liquid storage mechanism 20 can replenish the liquid in the heat exchange circuit 10 so that the equipment has a certain downtime buffer time. Or when the liquid in the heat exchange circuit 10 expands, the liquid storage mechanism 20 can store the liquid that flows out of the heat exchange circuit 10 due to the expansion of the pipeline.

[0039] In some embodiments, see Figure 2The heat exchange circuit 10 also includes a liquid inlet pipeline 12 and a liquid return pipeline 13. The liquid inlet pipeline 12 is connected to the input end of the heat exchanger 11, and the liquid return pipeline 13 is connected to the output end of the heat exchanger 11. The air inlet 21 and the liquid replenishment port 22 of the liquid storage mechanism 20 are both connected to the liquid inlet pipeline 12 or the liquid return pipeline 13. The heat exchange circuit 10 also includes a refrigeration module 30, which is used to reduce the temperature of the heat exchange medium in the liquid return pipeline 13 and then flow to the liquid inlet pipeline 12. In this way, the heat exchange medium in the liquid return pipeline 13 is cooled by the refrigeration module 30 and then flows to the liquid inlet pipeline 12, and then flows from the liquid inlet pipeline 12 to the heat exchanger 11, and heat exchanges with the test piece in the heat exchanger 11. After exchanging heat with the test piece in the heat exchanger 11, the heat exchange medium flows to the return liquid pipeline 13, flows from the return liquid pipeline 13 to the refrigeration module 30 for further cooling, and then flows to the inlet liquid pipeline 12 again after cooling, and the cycle is repeated in sequence, thereby controlling the temperature of the test piece.

[0040] Specifically, the refrigeration module 30 is a part of the heat exchange circuit 10, and the two ends of the liquid inlet pipeline 12 are respectively connected to the output end of the refrigeration module 30 and the input end of the heat exchanger 11, and the two ends of the liquid return pipeline 13 are respectively connected to the output end of the heat exchanger 11 and the input end of the refrigeration module 30. In this way, the heat exchange medium flows to the liquid inlet pipeline 12 after being cooled in the refrigeration module 30, and flows from the liquid inlet pipeline 12 to the heat exchanger 11, and exchanges heat with the test piece in the heat exchanger 11. After the heat exchange medium exchanges heat with the test piece in the heat exchanger 11, it flows to the liquid return pipeline 13, flows from the liquid return pipeline 13 to the refrigeration module 30 to be cooled again, and flows to the liquid inlet pipeline 12 again after being cooled, and the cycle is repeated in sequence, thereby controlling the temperature of the test piece.

[0041] It is conceivable that in some other embodiments, the refrigeration module 30 may also exist independently of the heat exchange circuit 10. In this case, the heat exchange medium flows in the flow channel of the heat exchange circuit 10, and when the heat exchange medium flows to the refrigeration module 30, the refrigeration module 30 indirectly cools the heat exchange medium by cooling the flow channel wall of the heat exchange circuit 10.

[0042] It should be noted that the heat exchange circuit 10 can control the low temperature of the test piece by providing a refrigeration module 30. Figure 2 and Figure 3 In other embodiments, when high temperature control of the test piece is required, a heating module 40 is provided in the heat exchange circuit 10, and the heating module 40 is used to heat the heat exchange medium to cooperate with the refrigeration module 30 to control the high temperature of the test piece.

[0043] Further, the heat exchange system 100 also includes a refrigeration device (not shown in the figure), and the refrigeration device includes the above-mentioned refrigeration module 30. Specifically, the refrigeration device also includes a compressor, a condenser and a throttle valve, and the above-mentioned refrigeration module 30 serves as an evaporator of the refrigeration device. The refrigeration device is thermally coupled with the heat exchange circuit 10 through the refrigeration module 30. When the refrigeration device is working, the compressor sucks the high-temperature and low-pressure refrigerant gas output from the output end of the refrigeration module 30, compresses the refrigerant into a high-temperature and high-pressure refrigerant gas, and discharges it from the output end of the compressor to the condenser. When the refrigerant passes through the condenser, it is condensed into a medium-temperature and high-pressure refrigerant liquid by the condenser, and is expanded and reduced in pressure by the throttle valve to be a low-temperature and low-pressure refrigerant liquid, and finally input into the refrigeration module 30 from the input end of the refrigeration module 30. When the low-temperature and low-pressure liquid refrigerant enters the refrigeration module 30, it exchanges heat with the heat exchange medium to cool the heat exchange medium, and the refrigerant with a higher temperature flows to the compressor, and the heat exchange medium with a lower temperature flows to the liquid inlet pipeline 12.

[0044] In some embodiments, see Figure 3 The heat exchange circuit 10 further includes a gas collecting mechanism 50, which is arranged on the liquid inlet pipeline 12 or the liquid return pipeline 13, and is used to separate the gas and liquid of the heat exchange medium in the heat exchange circuit 10. The gas collecting mechanism 50 is connected to the gas inlet 21 of the liquid storage mechanism 20, so as to discharge the gas in the heat exchange circuit 10 into the liquid storage mechanism 20. The liquid replenishing port 22 of the liquid storage mechanism 20 is connected to the liquid inlet pipeline 12 or the liquid return pipeline 13, so that the liquid storage mechanism 20 replenishes the heat exchange medium into the heat exchange circuit 10. Since the gas collecting mechanism 50 can separate the gas and liquid of the heat exchange medium in the heat exchange circuit 10, it is convenient to separate the gas in the heat exchange circuit 10 from the heat exchange medium, and the gas finally gathers in the liquid storage mechanism 20 and is discharged through its exhaust port 23, so as to facilitate the emptying of the gas in the heat exchange circuit 10, so that the heat exchange medium fills the entire heat exchange circuit 10, thereby ensuring the temperature control effect of the test piece.

[0045] Specifically, the gas collecting mechanism 50 has a liquid inlet 51, a liquid outlet 52 and a gas outlet 53. The liquid inlet 51 and the liquid outlet 52 are both connected to the liquid inlet pipeline 12 or the liquid return pipeline 13, and the gas outlet 53 is connected to the gas inlet 21 of the liquid storage mechanism 20. Among them, the position of the gas outlet 53 is higher than the positions of the liquid inlet 51 and the liquid outlet 52. The heat exchange medium in the liquid inlet pipeline 12 or the liquid return pipeline 13 can flow into the gas collecting mechanism 50 through the liquid inlet 51. Due to the difference in density between gas and liquid, the gas floats to achieve gas-liquid separation of the heat exchange medium. That is, the gas collecting mechanism 50 can separate the gas in the heat exchange medium, and the heat exchange medium flows out of the gas collecting mechanism 50 through the liquid outlet 52, and the separated gas flows from the gas outlet 53 to the liquid storage mechanism 20.

[0046] In some specific embodiments, the gas collecting mechanism 50 is a gas collecting cylinder, that is, the gas collecting mechanism 50 is a cylindrical structure. Of course, in some other embodiments, the shape of the gas collecting mechanism 50 is not limited, such as the gas collecting mechanism 50 can also be a gas collecting tank, in which case the gas collecting mechanism 50 is a tank-shaped structure.

[0047] It is conceivable that in some other embodiments, the heat exchange circuit 10 may also omit the gas collecting mechanism 50, and in this case the gas inlet 21 of the liquid storage mechanism 20 is directly connected to the liquid inlet pipeline 12 or the liquid return pipeline 13 through a pipeline.

[0048] In some embodiments, the liquid storage mechanism 20 is a liquid storage tank, a liquid storage barrel or a liquid storage box. Of course, in some other embodiments, the liquid storage mechanism 20 can also be arranged in other ways, which are not limited here.

[0049] Continue reading Figure 1 and Figure 3 The heat exchange system 100 also includes a first pipeline 60 and a first one-way valve 70. The first pipeline 60 is connected between the air inlet 21 of the liquid storage mechanism 20 and the heat exchange circuit 10. The first one-way valve 70 is arranged on the first pipeline 60 and allows the gas in the heat exchange circuit 10 to flow into the liquid storage mechanism 20. In some specific embodiments, when the air inlet 21 is connected to the return liquid pipeline 13 of the heat exchange circuit 10 through the air collecting mechanism 50, the first pipeline 60 is connected between the air inlet 21 of the liquid storage mechanism 20 and the air outlet 53 of the air collecting mechanism 50, and the first one-way valve 70 allows the gas in the heat exchange circuit 10 to flow to the liquid storage mechanism 20 through the air collecting mechanism 50. The first one-way valve 70 can prevent the heat exchange medium in the liquid storage mechanism 20 from flowing to the air collecting mechanism 50 through the first pipeline 60, thereby avoiding the occurrence of liquid sealing when too much liquid is added to the liquid storage mechanism 20, and ensuring that the gas in the return liquid pipeline 13 can flow to the liquid storage mechanism 20 through the air collecting mechanism 50 and be discharged to the outside.

[0050] Further, the heat exchange system 100 further includes a second pipeline 80 and a second one-way valve 90. The second pipeline 80 is connected between the liquid infusion port 22 of the liquid storage mechanism 20 and the heat exchange circuit 10. The second one-way valve 90 is disposed on the second pipeline 80 and allows the heat exchange medium in the liquid storage mechanism 20 to flow into the heat exchange circuit 10. In some specific embodiments, when the liquid infusion port 22 is connected to the liquid return line 13 of the heat exchange circuit 10, the second pipeline 80 is connected between the liquid infusion port 22 of the liquid storage mechanism 20 and the liquid return line 13, the second one-way valve 90 allows the heat exchange medium in the liquid storage mechanism 20 to flow into the liquid return line 13 of the heat exchange circuit 10, and the second one-way valve 90 can prevent the heat exchange medium in the liquid return line 13 from flowing back into the liquid storage mechanism 20 through the second pipeline 80.

[0051] In some embodiments, the heat exchange system 100 further includes a bypass line 110, and the liquid storage mechanism 20 further includes a connecting port 24. The bypass line 110 connects the connecting port 24 of the liquid storage mechanism 20 with the heat exchange circuit 10 to allow the heat exchange medium to flow between the liquid storage mechanism 20 and the heat exchange circuit 10. Among them, the positions of the liquid replenishing port 22, the connecting port 24 and the air inlet 21 on the liquid storage mechanism 20 increase in sequence. In some specific embodiments, when the connecting port 24 is connected to the liquid return line 13 of the heat exchange circuit 10, the bypass line 110 is connected between the connecting port 24 of the liquid storage mechanism 20 and the liquid return line 13. By setting the heat exchange system 100 to also include a bypass pipeline 110, when the first one-way valve 70 is blocked, the gas separated by the gas collecting mechanism 50 can flow to the liquid storage mechanism 20 through the bypass pipeline 110, and when the second one-way valve 90 is blocked, the liquid in the liquid storage mechanism 20 can flow to the return liquid pipeline 13 through the bypass pipeline 110, so as to prevent the one-way valve from being blocked and causing gas or liquid to be unable to flow and cause equipment damage. For example, the setting of the bypass pipeline 110 can prevent the liquid in the heat exchange circuit 10 from expanding and bursting under high temperature conditions, and can prevent the liquid in the heat exchange circuit 10 from being sucked empty by the power pump (120) (described below) under low temperature conditions.

[0052] In some specific embodiments, the bypass line 110 is connected to the portion of the second line 80 between the second check valve 90 and the liquid return line 13, that is, the bypass line 110 is indirectly connected to the liquid return line 13 through the second line 80. Of course, in some other embodiments, the bypass line 110 can also be directly connected to the liquid return line 13, which is not limited here.

[0053] It should be noted here that in some other embodiments, there is no limitation on which part of the heat exchange circuit 10 the air inlet 21 , the liquid replenishing port 22 and the connecting port 24 of the liquid storage mechanism 20 are connected to. For example, the air inlet 21 , the liquid replenishing port 22 and the connecting port 24 of the liquid storage mechanism 20 can also be connected to the liquid inlet pipeline 12 of the heat exchange circuit 10 .

[0054] In some embodiments, continue to refer to Figure 3 The liquid storage mechanism 20 further includes a liquid adding port 25, which is independent of the exhaust port 23. With this arrangement, when it is necessary to add heat exchange medium to the liquid storage mechanism 20, it can be added directly through the liquid adding port 25, and the addition of heat exchange medium does not affect the discharge of gas from the exhaust port 23.

[0055] In some other embodiments, the liquid filling port 25 and the exhaust port 23 may be shared to facilitate the processing and manufacturing of the liquid storage mechanism 20 .

[0056] Specifically, the heat exchange system 100 further includes a liquid level sensor 130, which is used to detect the liquid level height in the liquid storage mechanism 20 so that the liquid level in the liquid storage mechanism 20 is maintained between the highest liquid level and the lowest liquid level. For example, in one specific embodiment, the volume of the liquid storage mechanism 20 is 15L, and the liquid level sensor 130 controls the liquid level height in the liquid storage mechanism 20 so that the liquid level volume in the liquid storage mechanism 20 is maintained at 3L-13L. Of course, in some other specific embodiments, the volume of the liquid storage mechanism 20 is not limited, and the volume of the liquid stored in the liquid storage mechanism 20 is not limited.

[0057] Optionally, the air inlet 21, the air outlet 23 and the liquid filling port 25 are all opened at the top of the liquid storage mechanism 20, specifically, the air inlet 21, the air outlet 23 and the liquid filling port 25 are all opened at the top surface of the liquid storage mechanism 20. The liquid replenishing port 22 is opened at the bottom of the liquid storage mechanism 20, specifically, the liquid replenishing port 22 is opened at the bottom surface of the liquid storage mechanism 20. The connecting port 24 is opened in the middle part of the liquid storage mechanism 20, specifically, the connecting port 24 is opened on the side of the liquid storage mechanism 20. In this way, it is convenient for the gas in the heat exchange circuit 10 to be discharged to the liquid storage mechanism 20 through the air inlet 21, and then discharged to the outside through the liquid storage mechanism 20, and it is also convenient for the heat exchange medium in the liquid storage mechanism 20 to flow into the heat exchange circuit 10 through the liquid replenishing port 22; at the same time, when the first one-way valve 70 or the second one-way valve 90 is blocked, it is convenient for the gas or liquid in the heat exchange circuit 10 to enter the liquid storage mechanism 20 through the connecting port 24, and it is convenient for the liquid in the liquid storage mechanism 20 to flow into the heat exchange circuit 10 through the connecting port 24.

[0058] It is conceivable that in other embodiments, the specific positions of the air inlet 21, the exhaust port 23, the liquid replenishing port 22, the connecting port 24 and the liquid adding port 25 on the liquid storage mechanism 20 are not limited, as long as the corresponding ports can achieve the corresponding functions.

[0059] In some embodiments, continue to refer to Figure 1-Figure 3 The heat exchange circuit 10 further includes a power pump 120, which is disposed on the liquid inlet pipeline 12 or the liquid return pipeline 13 and is used to provide power for the heat exchange medium to flow in the heat exchange circuit 10. In this way, when the gas in some curved pipelines or pipelines higher than the exhaust port 23 of the liquid storage mechanism 20 cannot be discharged, the power pump 120 is started after the liquid in the heat exchange circuit 10 reaches the minimum operating standard of the power pump 120, and the liquid flows in the heat exchange circuit 10 to converge the remaining gas in the pipeline into the gas collecting mechanism 50.

[0060] Further, the power pump 120 is arranged on the liquid return pipeline 13, and the air inlet 21 and the liquid replenishing port 22 of the liquid storage mechanism 20 are both connected to the portion of the liquid return pipeline 13 located between the power pump 120 and the heat exchanger 11. Further, the connecting port 24 of the liquid storage mechanism 20 is also connected to the portion of the liquid return pipeline 13 located between the power pump 120 and the heat exchanger 11. At this time, the air inlet 21, the liquid replenishing port 22 and the connecting port 24 are all connected to the liquid inlet end of the power pump 120. In this way, the liquid storage mechanism 20 is located upstream of the power pump 120. When the power pump 120 is shut down, the liquid storage mechanism 20 can keep a certain pressure at the liquid inlet end of the power pump 120, reduce the starting pressure of the power pump 120 to prevent impact to protect the power pump 120, and then prevent the liquid from flowing back from the liquid outlet end of the power pump 120 to the liquid inlet end, causing the power pump 120 to be stuck. At the same time, the liquid storage mechanism 20 and the air collecting mechanism 50 are both located upstream of the power pump 120, so as to avoid buffering of the liquid pressure by the liquid storage mechanism 20 and the air collecting mechanism 50, thereby facilitating the control of the pressure at the liquid outlet of the power pump 120 (if the liquid storage mechanism 20 and the air collecting mechanism 50 are arranged at the liquid outlet of the power pump 120, then the pressure of the liquid flowing out of the liquid outlet of the power pump 120 will be buffered by the buffering effect of the liquid storage mechanism 20 and the air collecting mechanism 50, thereby causing the pressure of the liquid to be uncontrollable).

[0061] Another embodiment of the present application further provides a test sorting device, including the above-mentioned heat exchange system 100. Since the heat exchange system 100 has beneficial effects, the test sorting device has corresponding beneficial effects, which will not be described in detail here.

[0062] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A heat exchange system, characterized in that: include: A heat exchange circuit (10) comprises a heat exchanger (11), wherein the heat exchanger (11) is used to exchange heat with the object to be tested so as to control the temperature of the object to be tested; The liquid storage mechanism (20) is independently arranged from the heat exchange circuit (10), and the air inlet (21) and the liquid replenishing port (22) of the liquid storage mechanism (20) are both in communication with the heat exchange circuit (10); the liquid storage mechanism (20) has an exhaust port (23), and the gas in the heat exchange circuit (10) can flow to the liquid storage mechanism (20) through the air inlet (21) and be discharged through the exhaust port (23); the heat exchange medium in the liquid storage mechanism (20) can flow to the heat exchange circuit (10) through the liquid replenishing port (22) to replenish the heat exchange circuit (10).

2. The heat exchange system according to claim 1, characterized in that: The heat exchange circuit (10) further comprises a liquid inlet pipeline (12) and a liquid return pipeline (13) which are connected to each other, wherein the liquid inlet pipeline (12) is in communication with an input end of the heat exchanger (11), and the liquid return pipeline (13) is in communication with an output end of the heat exchanger (11); the air inlet (21) and the liquid replenishment port (22) are both in communication with the liquid inlet pipeline (12) or the liquid return pipeline (13); The heat exchange circuit (10) is provided with a refrigeration module (30), and the refrigeration module (30) is used to reduce the temperature of the heat exchange medium in the liquid return pipeline (13) so that the heat exchange medium flows toward the liquid inlet pipeline (12).

3. The heat exchange system according to claim 2, characterized in that: The heat exchange circuit (10) further comprises a gas collecting mechanism (50), wherein the gas collecting mechanism (50) is arranged on the liquid inlet pipeline (12) or the liquid return pipeline (13), and the gas collecting mechanism (50) is used to separate the gas and liquid of the heat exchange medium in the heat exchange circuit (10); The gas collecting mechanism (50) is connected to the gas inlet (21) so as to discharge the gas in the heat exchange circuit (10) into the liquid storage mechanism (20); the liquid replenishing port (22) is connected to the liquid inlet pipeline (12) or the liquid return pipeline (13) so that the liquid storage mechanism (20) replenishes the heat exchange medium into the heat exchange circuit (10).

4. The heat exchange system according to claim 2 or 3, characterized in that: The heat exchange circuit (10) further comprises a power pump (120), which is arranged on the liquid inlet pipeline (12) or the liquid return pipeline (13) and is used to provide power for the heat exchange medium to flow in the heat exchange circuit (10).

5. The heat exchange system according to claim 4, characterized in that: The power pump (120) is arranged on the liquid return pipeline (13), and the air inlet (21) and the liquid replenishment port (22) are both connected to the portion of the liquid return pipeline (13) located between the power pump (120) and the heat exchanger (11).

6. The heat exchange system according to claim 1, characterized in that: The heat exchange system further comprises a first pipeline (60) and a first non-return valve (70), wherein the first pipeline (60) is connected between the air inlet (21) of the liquid storage mechanism (20) and the heat exchange circuit (10), and the first non-return valve (70) is arranged on the first pipeline (60) and allows the gas in the heat exchange circuit (10) to flow into the liquid storage mechanism (20); and / or The heat exchange system further comprises a second pipeline (80) and a second one-way valve (90); the second pipeline (80) is connected between the liquid replenishing port (22) of the liquid storage mechanism (20) and the heat exchange circuit (10); the second one-way valve (90) is arranged on the second pipeline (80) and allows the heat exchange medium in the liquid storage mechanism (20) to flow into the heat exchange circuit (10).

7. The heat exchange system according to claim 6, characterized in that: The heat exchange system further comprises a bypass pipeline (110), the liquid storage mechanism (20) further comprises a communication port (24), and the bypass pipeline (110) connects the communication port (24) of the liquid storage mechanism (20) with the heat exchange circuit (10); The positions of the liquid replenishing port (22), the communication port (24) and the air inlet (21) on the liquid storage mechanism (20) are successively higher.

8. The heat exchange system according to claim 7, characterized in that: The air inlet (21) is located at the top of the liquid storage mechanism (20), the liquid replenishing port (22) is located at the bottom of the liquid storage mechanism (20), and the communication port (24) is located in the middle of the liquid storage mechanism (20).

9. The heat exchange system according to claim 1, characterized in that: The liquid storage mechanism (20) further comprises a liquid adding port (25), wherein the liquid adding port (25) and the exhaust port (23) are independent of each other, or the liquid adding port (25) and the exhaust port (23) are shared.

10. A test sorting device, characterized in that: Comprising the heat exchange system as described in any one of claims 1-9.

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