Detection device and test handler

Abstract

The application relates to a detection device and a test sorting machine, which comprises a main body provided with a detection flow channel; the detection flow channel comprises a liquid inlet flow channel, an air inlet flow channel and a common inlet flow channel; a switching valve is movably arranged on the main body and can be moved relative to the main body to make the liquid inlet flow channel and the air inlet flow channel selectively communicate with one end of the common inlet flow channel, and the other end of the common inlet flow channel is used for communicating with the liquid inlet of a detection object; the detection flow channel further comprises a common outlet flow channel, one end of the common outlet flow channel is used for communicating with the liquid outlet of the detection object, and the other end of the common outlet flow channel is used for communicating with the outside; a detection object is configured to obtain at least one of the pressure difference between the liquid inlets and outlets of the detection object, the temperature difference of different regions of the detection object and the surface temperature of the detection object at multiple time points when the detection object is supplied with cooling liquid through the flow channel in the main body.

Description

Technical Field

[0001] This invention relates to the field of semiconductor testing technology, and in particular to a testing device and a test sorting machine. Background Technology

[0002] With the increasing integration of electronic devices, the power and heat flux density of chips have increased significantly. Traditional heat dissipation technologies are difficult to cool high-power and high-heat-fluid-density chips in a timely manner due to their long heat transfer paths and high thermal resistance. Therefore, microchannel embedded chips (advanced semiconductor chips that integrate micron-level fluid channel structures inside the chip body through micro-nano fabrication processes, allowing coolant to directly dissipate heat inside the chip) have emerged.

[0003] Because microchannel embedded chips contain microchannels, the precision etching or micromilling of these microchannels requires highly advanced techniques. Defects in these microchannels can lead to coolant leaks and blockages, causing the microchannel embedded chip to fail to meet heat dissipation requirements. Traditional technologies lack detection equipment to assess the presence of defects in the microchannels of microchannel embedded chips, thus limiting their further development. Summary of the Invention

[0004] Therefore, it is necessary to provide a detection device and test sorting machine that can detect whether there are defects in the microchannels of microchannel embedded chips, so as to facilitate the further development of microchannel embedded chips.

[0005] A detection device, comprising:

[0006] The main body has a detection channel inside; the detection channel includes a liquid inlet channel, an air inlet channel, and a common inlet channel.

[0007] A switching valve is movably mounted on the main body so that it can move relative to the main body to selectively connect one of the liquid inlet channel and the air inlet channel to one end of the common inlet channel, and the other end of the common inlet channel is used to connect to the liquid inlet of the test piece.

[0008] The detection channel also includes a common outlet channel, one end of which is used to connect with the liquid outlet of the test piece, and the other end is used to connect with the outside.

[0009] The test piece is configured to, when supplying coolant to the test piece through the flow channel in the main body, acquire at least one of the following: the pressure difference between the inlet and outlet of the test piece, the temperature difference between different regions of the test piece, and the surface temperature of the test piece at multiple times.

[0010] In one embodiment, the detection element includes a differential pressure detection element, which includes a first pressure sensor and a second pressure sensor both mounted on the main body. The first pressure sensor is used to acquire the pressure of the common inlet channel to characterize the pressure of the liquid inlet of the test piece, and the second pressure sensor is used to acquire the pressure of the common outlet channel to characterize the pressure of the liquid outlet of the test piece.

[0011] and / or

[0012] The detection element includes a temperature detection element, which includes a first temperature sensor and a second temperature sensor. The first temperature sensor is used to detect the surface temperature of the liquid inlet area of ​​the test element, and the second temperature sensor is used to detect the surface temperature of the liquid outlet area of ​​the test element.

[0013] In one embodiment, the detection channel further includes an outflow channel and a liquid outflow channel, both of which are connected to the end of the common outflow channel used for communication with the outside.

[0014] In one embodiment, the main body is provided with a gas-liquid separator, the common outlet channel is connected to the inlet of the gas-liquid separator, and the gas-liquid separator has an exhaust port and a liquid outlet;

[0015] The liquid outlet channel is connected to the liquid drain port, and the gas outlet channel is connected to the gas exhaust port.

[0016] In one embodiment, the main body includes a crimping assembly for crimping the test piece onto a test holder for high and low temperature performance testing; the crimping assembly is provided with corresponding detection channels and switching valves;

[0017] and / or

[0018] The main body includes a test stand for placing the test piece for crimping by a crimping assembly to perform high and low temperature performance testing on the test piece; the test stand is provided with corresponding detection channels and switching valves.

[0019] In one embodiment, the crimping assembly has a crimping surface for crimping the test piece, the common inlet channel and the common outlet channel respectively include a first common inlet channel and a first common outlet channel, the first common inlet channel and the first common outlet channel respectively have a first common inlet and a first common outlet communicating with the test piece; the first common inlet and the first common outlet are both disposed on the crimping surface;

[0020] and / or

[0021] The crimping assembly includes a crimping head and a suction nozzle. The suction nozzle is mounted on the crimping head for adsorbing the test piece. The crimping head is used to crimp the test piece onto the test seat for testing. The detection channel and the switching valve are both located on the crimping head.

[0022] In one embodiment, the test fixture has a bearing surface for supporting the test piece and a first side surface intersecting the bearing surface;

[0023] The common inlet channel includes a second common inlet channel and / or a third common inlet channel, and the common outlet channel includes a second common outlet channel and / or a third common outlet channel; the second common inlet channel and the third common inlet channel respectively have a second common inlet and a third common inlet connected to the device under test, and the second common outlet channel and the third common outlet channel respectively have a second common outlet and a third common outlet connected to the device under test;

[0024] The second common inlet and the second common outlet are located on the bearing surface, and the third common inlet and the third common outlet are located on the first side surface;

[0025] The switching valve moves relative to the test seat to connect one of the liquid inlet channel and the air inlet channel to a corresponding common inlet channel.

[0026] In one embodiment, the test fixture includes a base and two clamping members, which are movably mounted on the base along a first direction to clamp the test piece close to each other or loosen the test piece away from each other; the first direction intersects the pressing direction of the pressing assembly pressing the test piece.

[0027] The clamping surface of each clamping member at one end in the first direction for clamping the test piece is the first side surface;

[0028] The second common inlet channel and the second common outlet channel are disposed on the base, the third common inlet channel is disposed on one of the clamping members, and the third common outlet channel is disposed on another clamping member;

[0029] The liquid inlet channel, the air inlet channel, and the switching valve are all located on the base.

[0030] In one embodiment,

[0031] The common inlet channel includes the second common inlet channel and the third common inlet channel, and the common outlet channel includes the second common outlet channel and the third common outlet channel;

[0032] The switching valve is movable relative to the test seat to switch between a first state and a second state;

[0033] When the switching valve is in the first state, it blocks the third common inlet channel, and the switching valve moves relative to the test seat to allow the liquid inlet channel and the air inlet channel to be selectively connected to the second common inlet channel;

[0034] When the switching valve is in the second state, it blocks the second common inlet channel. The movement of the switching valve relative to the test seat causes the liquid inlet channel and the air inlet channel to be selectively connected to the third common inlet channel.

[0035] In one embodiment, the switching valve has a first valve port and a second valve port that are circumferentially spaced and connected thereto, and a third valve port and a fourth valve port that are circumferentially spaced and connected thereto; the first valve port and the third valve port are axially spaced along the switching valve, and the second valve port and the fourth valve port are axially spaced along the switching valve.

[0036] The switching valve rotates circumferentially relative to the test seat to switch between the first state and the second state;

[0037] When the switching valve is in the first state and the second state, the switching valve moves along its axial direction relative to the test seat so that the liquid inlet channel is connected to the corresponding common inlet channel through the first valve port and the second valve port, and the air inlet channel is connected to the corresponding common inlet channel through the third valve port and the fourth valve port.

[0038] A testing and sorting machine includes a feeding device, a conveying device, a testing device, and a receiving device, wherein the testing device includes the aforementioned detection device;

[0039] The feeding device is used to provide the test piece to the conveying device, the conveying device is used to transport the test piece provided by the feeding device, the testing device is used to receive the test piece transported by the conveying device and test it, and the conveying device can also transport the tested test piece to the receiving device for collection.

[0040] Compared with the prior art, this application has the following beneficial effects:

[0041] 1. The second end of the common inlet channel can be connected to the liquid inlet of the device under test (DUT), and the third end of the common outlet channel can be connected to the liquid outlet of the DUT. Coolant flows from the inlet channel to the common inlet channel, and from the common inlet channel to the channel within the DUT. The coolant flowing through the DUT channel finally flows to the common outlet channel and from the common outlet channel to the outside. During the flow of coolant within the DUT, the testing device detects the DUT to determine whether there are defects in the channels. Therefore, the testing device provided in this application can effectively detect whether there are defects in the channels of the DUT, thereby ensuring that the channel performance of the DUT meets the requirements and facilitating the further development of DUTs such as microchannel embedded chips.

[0042] 2. After the channel performance test of a test component is completed, the switching valve is operated to connect the inlet air channel and the common inlet air channel. At this time, the gas flows from the inlet air channel to the common inlet air channel, and then from the common inlet air channel into the channel of the test component, blowing the residual coolant in the channel towards the common outlet air channel. Finally, the gas and residual coolant flow to the outside through the common outlet air channel. In this way, coolant residue in the test component is avoided from causing contamination. Furthermore, the residual coolant in the test component can be recycled after being blown out by the gas, achieving the effect of cost saving. Attached Figure Description

[0043] Figure 1 A structural diagram of the detection device provided in an embodiment of this application when it is connected to the inlet and outlet of the test piece;

[0044] Figure 2 for Figure 1 The diagram shown illustrates the structure of the detection device when it is separated from the test piece.

[0045] Figure 3 for Figure 1 Top view of the structure shown;

[0046] Figure 4 for Figure 3 A cross-sectional view of the AA surface of the structure shown;

[0047] Figure 5 for Figure 1 Side view of the structure shown;

[0048] Figure 6 for Figure 5 A cross-sectional view of the BB surface of the structure shown;

[0049] Figure 7 for Figure 2 Exploded view of the structure shown;

[0050] Figure 8 for Figure 1The pressure head of the detection device shown can display a perspective view of the internal structure;

[0051] Figure 9 for Figure 8 The isometric view of the indenter shown;

[0052] Figure 10 A structural diagram of a testing device provided in another embodiment of this application when it carries a test piece;

[0053] Figure 11 for Figure 10 Exploded view of the detection device shown;

[0054] Figure 12 for Figure 10 The diagram shows the structure of the base and switching valve of the detection device shown.

[0055] Figure 13 for Figure 12 The base shown allows for a perspective view of the internal structure. Figure 13 (The central inlet channel is connected to the second common inlet channel).

[0056] Figure 14 for Figure 10 Side view of the detection device shown;

[0057] Figure 15 for Figure 14 A cross-sectional view of the EE surface of the detection device shown;

[0058] Figure 16 for Figure 10 A cross-sectional view of the detection device shown;

[0059] Figure 17 for Figure 11 Assembly diagram of the detection device shown;

[0060] Figure 18 for Figure 14 A cross-sectional view of the DD side of the detection device shown;

[0061] Figure 19 for Figure 17 Top view of the detection device shown ( Figure 19 The first temperature sensor and the second temperature sensor are mounted on the middle base.

[0062] Figure 20 Perspective view of a detection device provided in another embodiment of this application ( Figure 20 (The central inlet channel and the third common inlet channel are connected).

[0063] Figure 21 A structural diagram of a type of test piece used by the testing device provided in this application;

[0064] Figure 22 for Figure 10 The diagram shows the structure of the switching valve of the detection device shown.

[0065] Figure 23 for Figure 10 Top view of the structure shown;

[0066] Figure 24 for Figure 23 A cross-sectional view of the CC plane of the structure shown.

[0067] Explanation of reference numerals in the attached figures:

[0068] 1000, Detection device; 100, Main body; 10, Detection channel; 11, Liquid inlet channel; 12, Air inlet channel; 13, Common inlet channel; 13a, First common inlet channel; 1321a, First common inlet; 13b, Second common inlet channel; 1321b, Second common inlet; 13c, Third common inlet channel; 1321c, Third common inlet; 14, Common outlet channel; 14a, First common outlet channel; 1411a, 14b, First common outlet; 14c, Second common outlet; 1411b, Second common outlet; 14c, Third common outlet; 1411c, Third common outlet; 15, Outlet gas channel; 16, Outlet liquid channel; 20, Gas-liquid separator; 21, Gas-liquid separation chamber; 22, Return gas pipe; 200, Switching valve; 201, First valve port; 202, Second valve port; 203, Third valve port; 204, Fourth valve port; 301, First pressure sensor Device; 302, Second pressure sensor; 401, First temperature sensor; 402, Second temperature sensor; 500, Crimping assembly; 501, Crimping surface; 502, First insertion part; 503, Second insertion part; 504, Crimping head; 5041, Tray; 5042, Crimping part; 5043, Through hole; 505, Nozzle; 600, Test seat; 601, Base; 6011, Bearing surface; 6012, Third insertion part; 60 13. Fourth insertion part; 6014. Placement groove; 6015. Seat body; 6016. First pipe; 6017. Second pipe; 6018. Mounting groove; 6019. First transition flow channel; 6010. Second transition flow channel; 602. Clamping element; 6021. Slide rod; 6022. Clamping block; 6023. First side; 6024. Fifth insertion part; 2000. Test piece; 2001. Liquid inlet; 2002. Liquid outlet. Detailed Implementation

[0069] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0070] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0071] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0072] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0073] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0074] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0075] See Figure 1 and Figure 2 One embodiment of this application provides a detection device 1000, which is used to detect a test piece 2000. Specifically, the detection device 1000 can detect whether there are defects in the channels included in the test piece 2000 itself, such as whether there are problems such as coolant leakage and blockage in the channels of the test piece 2000, so as to ensure that the channel performance of the test piece 2000 meets the requirements, thereby enabling the test piece 2000 to meet the heat dissipation requirements.

[0076] Optionally, the device under test 2000 is a microchannel embedded chip, and the detection device 1000 is used to detect whether there are defects in the microchannels of the microchannel embedded chip, to ensure that the performance of the microchannels in the microchannel embedded chip meets the requirements, thereby enabling the microchannel embedded chip to meet the heat dissipation requirements. It should be understood that in some other embodiments, the type of device under test 2000 is not limited, and any device under test 2000 whose channel performance needs to be tested can be used.

[0077] See Figures 3-6 The detection device 1000 includes a main body 100, within which a detection channel 10 is provided. The detection channel 10 includes a liquid inlet channel 11, an air inlet channel 12, and a common inlet channel 13. The two ends of the common inlet channel 13 are a first end 131 and a second end 132, respectively, and the first end 131 and the second end 132 are connected. The detection device 1000 also includes a switching valve 200, which is movably mounted on the main body 100 to allow movement relative to the main body 100, enabling selective connection of either the liquid inlet channel 11 or the air inlet channel 12 to the first end 131 of the common inlet channel 13, and the second end 132 to connect to the liquid inlet 2001 of the test piece 2000 (see reference). Figure 2 Connect.

[0078] The coolant inlet channel 11 is used for liquid inlet, allowing external coolant to flow into it. The coolant inlet channel 11 can be deionized water or fluorinated liquid, etc., and is not limited thereto. Furthermore, the type of coolant inlet channel 11 can be the same as or different from the type of coolant used in the test component 2000 during normal operation. The air inlet channel 12 is used for air inlet, allowing external gas to flow into it. The gas inlet channel 12 can be air, etc., and is not limited thereto. The common inlet channel 13 is a shared channel for both coolant and gas to flow into the test component 2000.

[0079] Since the switching valve 200 is movably mounted on the main body 100, when the switching valve 200 moves relative to the main body 100, it allows one of the liquid inlet channel 11 and the gas inlet channel 12 to connect with the common inlet channel 13. That is, at any given time, only one of the liquid inlet channel 11 and the gas inlet channel 12 is connected to the common inlet channel 13. When the liquid inlet channel 11 is connected to the common inlet channel 13, the gas inlet channel 12 is not connected to it; when the gas inlet channel 12 is connected to the common inlet channel 13, the liquid inlet channel 11 is not connected to it. In this way, under the control of the switching valve 200, coolant and gas will not be simultaneously introduced into the test piece 2000. This ensures that when the channel performance of the test piece 2000 is tested, only coolant is introduced into it, reducing the adverse effects of gas being simultaneously introduced into the test piece 2000 on the test results.

[0080] Further reading Figure 4 The detection channel 10 also includes a common outlet channel 14, with a third end 141 and a fourth end 142 at its two ends, which are connected. The third end 141 is used to connect with the liquid outlet 2002 of the test piece 2000 (see...). Figure 2 The fourth end 142 is used to connect with the outside. The common outlet channel 14 is a common channel for coolant and gas flowing out from the test piece 2000.

[0081] The detection device 1000 further includes a detection element configured to acquire at least one of the following when coolant is supplied to the test piece 2000 through the flow channel in the main body 100: the pressure difference between the inlet and outlet of the test piece 2000, the temperature difference between different regions of the test piece 2000, and the surface temperature of the test piece 2000 at multiple times. Specifically, the pressure difference between the inlet and outlet of the test piece 2000 is the pressure difference between the inlet 2001 and outlet 2002 of the test piece 2000; the temperature difference between different regions of the test piece 2000 is the temperature difference between different regions of the test piece 2000; and the surface temperature of the test piece 2000 at multiple times is the surface temperature of the test piece 2000 at at least two times. Optionally, the detection element may acquire any one, any two, or all three of the pressure difference between the inlet and outlet of the test piece 2000, the temperature difference between different regions of the test piece 2000, and the surface temperature of the test piece 2000 at multiple times.

[0082] In the above configuration, when testing the test piece 2000, the second end 132 of the common inlet channel 13 is connected to the liquid inlet 2001 of the test piece 2000, and the third end 141 of the common outlet channel 14 is connected to the liquid outlet 2002 of the test piece 2000. Operating the switching valve 200 connects the inlet channel 11 with the common inlet channel 13. At this time, coolant flows from the inlet channel 11 to the common inlet channel 13, and from the common inlet channel 13 to the channel in the test piece 2000. The coolant flowing through the channel in the test piece 2000 finally flows to the common outlet channel 14 and from the common outlet channel 14 to the outside. During the flow of coolant in the test piece 2000, the detection device performs detection on the test piece 2000. For example, the detection device can detect the pressure difference between the inlet and outlet of the test piece 2000, the temperature difference between different areas of the test piece 2000, and the surface temperature of the test piece 2000 at multiple times. After obtaining the detection data, the detection device compares the detection data with the target data to determine whether there are defects in the channels of the test piece 2000. Therefore, the detection device 1000 provided in this embodiment can effectively detect whether there are defects in the channels of the test piece 2000, thereby ensuring that the channel performance of the test piece 2000 meets the requirements, which is beneficial to the further development of the test piece 2000, such as microchannel embedded chips.

[0083] Typically, coolant is pumped into the inlet channel 11 at a rated flow rate via an external pump to facilitate testing whether the pressure difference between the inlet and outlet of the test component 2000 meets the requirements. Furthermore, when the test component is used to detect the temperature difference between different areas of the test component 2000 and the surface temperature of the test component 2000 at multiple times, the initial temperature of the test component 2000 is controlled to be higher than the temperature of the coolant to determine whether the heat dissipation performance of the channels in the test component 2000 meets the requirements. The initial temperature is selected as needed.

[0084] After the channel performance test of a test component 2000 is completed, the switching valve 200 is operated to connect the inlet air passage 12 and the common inlet air passage 13. At this time, gas flows from the inlet air passage 12 to the common inlet air passage 13, and from the common inlet air passage 13 to the channel in the test component 2000, blowing the residual coolant in the channel towards the common outlet air passage 14. Finally, the gas and residual coolant flow to the outside through the common outlet air passage 14. In this way, coolant residue in the test component 2000 is avoided from causing contamination of the test component 2000. Furthermore, the residual coolant in the test component 2000 can be recycled after being blown out by the gas, which also achieves the effect of saving costs. As can be seen, the detection device 1000 provided in this application embodiment, since both the liquid inlet channel 11 and the air inlet channel 12 are integrated on the main body 100, can not only detect the channel performance of the test piece 2000, but also blow out the residual coolant inside the test piece 2000 without transferring it after the channel performance is detected. Compared with the method of transferring the tested test piece 2000 to another station to blow out the coolant inside, the detection efficiency is greatly improved.

[0085] In some embodiments, see further reference. Figure 4 The detection element includes a differential pressure detection element, which comprises a first pressure sensor 301 and a second pressure sensor 302 mounted on the main body 100. The first pressure sensor 301 is used to acquire the pressure of the common inlet channel 13 to characterize the pressure at the liquid inlet 2001 of the test piece 2000, and the second pressure sensor 302 is used to acquire the pressure of the common outlet channel 14 to characterize the pressure at the liquid outlet 2002 of the test piece 2000. Based on the pressures acquired by the first pressure sensor 301 and the second pressure sensor 302, the differential pressure between the liquid inlet and outlet of the test piece 2000 can be obtained, and the channel performance of the test piece 2000 can be determined by using the differential pressure between the liquid inlet and outlet of the test piece 2000.

[0086] Further reading Figure 4 and Figure 5 The detection device also includes temperature detection devices, which include a first temperature sensor 401 and a second temperature sensor 402. The first temperature sensor 401 is used to detect the surface temperature of the inlet 2001 area of ​​the test piece 2000, and the second temperature sensor 402 is used to detect the surface temperature of the outlet 2002 area of ​​the test piece 2000. Based on the temperatures detected by the first temperature sensor 401 and the second temperature sensor 402, the temperature difference between the inlet and outlet areas of the test piece 2000 can be obtained, thereby determining whether the temperature uniformity of the surface of the test piece 2000 meets the requirements, and thus judging the channel performance of the test piece 2000.

[0087] It should be noted that since the first temperature sensor 401 is used to detect the surface temperature of the liquid inlet 2001 area of ​​the test piece 2000, and the second temperature sensor 402 is used to detect the surface temperature of the liquid outlet 2002 area of ​​the test piece 2000, the surface temperature of the area at multiple different times can be detected by the first temperature sensor 401 or the second temperature sensor 402. Based on the surface temperature of the corresponding area at different times, the temperature drop rate of the area can be obtained, thereby determining whether the surface temperature drop rate of the test piece 2000 meets the requirements, and thus judging the channel performance of the test piece 2000.

[0088] It is conceivable that in some other embodiments, the detection element may include only a temperature detection element or only a differential pressure detection element, and the temperature detection element and the differential pressure detection element may also be set in other ways, such as setting the differential pressure detection element as a differential pressure gauge, directly obtaining the pressure difference between the inlet and outlet of the test piece 2000 through the differential pressure gauge, setting the temperature detection element to include only the first temperature sensor 401 or the second temperature sensor 402, or setting the temperature sensor included in the temperature detection element in other areas of the test piece 2000, etc.

[0089] In some embodiments, see Figure 7 and Figure 8 The detection channel 10 also includes an outlet flow channel 15 and an outlet flow channel 16, both of which are connected to the fourth end 142. In this way, the coolant flowing from the test piece 2000 flows out through the outlet flow channel 16, and the gas flowing from the test piece 2000 flows out through the outlet flow channel 15, facilitating the separation of coolant and gas for the recycling of coolant and / or gas.

[0090] Further reading Figure 4 and Figure 8 The main body 100 is equipped with a gas-liquid separator 20, with the fourth end 142 connected to the inlet of the gas-liquid separator 20. The gas-liquid separator 20 has an exhaust port and a liquid outlet. The liquid outlet channel 16 is connected to the liquid outlet, and the gas outlet channel 15 is connected to the exhaust port. The gas-liquid separator 20 can completely separate coolant and gas, facilitating the recycling of coolant and / or gas. Furthermore, since the gas-liquid separator 20 is integrated inside the main body 100, a separate gas-liquid separation device for separating coolant and gas is avoided, simplifying the structural design.

[0091] For details, please refer to [link / reference]. Figure 4 and Figure 8 The gas-liquid separator 20 has a gas-liquid separation chamber 21, which includes the aforementioned inlet, exhaust port, and liquid outlet. The gas-liquid separator 20 also includes a return gas pipe 22, which is disposed inside the gas-liquid separation chamber 21. One end of the return gas pipe 22 is connected to the top of the gas-liquid separation chamber 21, and the other end of the return gas pipe 22 forms the aforementioned exhaust port.

[0092] With the above configuration, when the gas-liquid mixture enters the gas-liquid separation chamber 21, the lighter gas moves upward and enters the return gas pipe 22, and flows from the return gas pipe 22 to the outlet gas channel 15 for discharge, while the heavier coolant is discharged from the drain port. The gas-liquid separator 20 has a simple structure and is conducive to the separation of coolant and gas.

[0093] In order to balance the internal and external pressure chambers, a pressure equalization hole is provided on the return gas pipe 22, which is connected to the gas-liquid separation chamber 21.

[0094] In some embodiments, see further reference. Figure 1 The main body 100 includes a crimping assembly 500, which is used to crimp the test piece 2000 onto the test holder 600 (hereinafter) to ensure tight contact between the test piece 2000 and the test holder 600. The test holder 600 is used to perform high and low temperature performance testing on the test piece 2000. The crimping assembly 500 is provided with a detection channel 10 and a switching valve 200. The detection channel 10 and the switching valve 200 are correspondingly arranged, that is, the switching valve 200 provided on the crimping assembly 500 can move relative to the crimping assembly 500 so that the liquid inlet channel 11 and the gas inlet channel 12 of the corresponding detection channel 10 can be selectively connected to the common inlet channel 13 of the corresponding detection channel 10. Furthermore, when the crimping assembly 500 is provided with a detection channel 10, a gas-liquid separator 20 may also be provided on it.

[0095] As can be seen, the crimping assembly 500 provided in this application embodiment can not only detect the channel performance of the test piece 2000, but also crimp the test piece 2000 onto the test base 600 to test the working performance, reliability and stability of the test piece 2000 in high temperature and low temperature environments.

[0096] It should be noted that, since the test socket 600 is used to perform high and low temperature performance tests on the test piece 2000, the test socket 600 is typically equipped with an interface for electrical connection with the test piece 2000. Furthermore, since the test socket 600 can test the high and low temperature performance of the test piece 2000, it also has the function of testing the performance of the test piece 2000 at room temperature.

[0097] It should be noted that the crimping assembly 500 can first crimp the test piece 2000 for high and low temperature performance testing, and then test the channel performance of the test piece 2000.

[0098] Typically, the crimping assembly 500 is equipped with a cooling channel and a heating element. The cooling channel circulates a cooling medium to cool the crimping assembly 500, while the heating element heats the crimping assembly 500. The heating element and the cooling medium circulating in the cooling channel counteract each other to control the temperature of the crimping assembly 500. Thus, when the crimping assembly 500 presses against the test piece 2000 for high and low temperature performance testing, the crimping assembly 500 remains at a controlled temperature, ensuring accurate temperature control of the test piece 2000 and thus guaranteeing the effectiveness of the high and low temperature performance testing.

[0099] See Figure 9 The crimping assembly 500 has a crimping surface 501 for crimping the test piece 2000. The test piece 2000 is crimped through the crimping surface 501, and temperature is conducted between the crimping surface 501 and the test piece 2000 so that the test holder 600 can perform high and low temperature performance tests on the test piece 2000.

[0100] Further reading Figure 4 and Figure 9 A common inlet channel 13 on the crimping assembly 500 is defined as a first common inlet channel 13a, and the second end 132 of the first common inlet channel 13a has a first common inlet 1321a. A common outlet channel 14 on the crimping assembly 500 is defined as a first common outlet channel 14a, and the third end 141 of the first common outlet channel 14a has a first common outlet 1411a. The first common inlet 1321a is used to communicate with the liquid inlet 2001 of the test piece 2000, and the first common outlet 1411a is used to communicate with the liquid outlet 2002 of the test piece 2000. Both the first common outlet 1411a and the first common inlet 1321a are located on the crimping surface 501.

[0101] Since both the first common outlet 1411a and the first common inlet 1321a are located on the crimping surface 501, the testing device 1000 is adapted to test the channel performance of the test piece 2000, where both the inlet 2001 and the outlet 2002 face the crimping surface 501. Typically, the crimping surface 501 is the lower surface of the crimping assembly 500, which presses the test piece 2000 downwards for high and low temperature performance testing. In this embodiment, since both the first common outlet 1411a and the first common inlet 1321a are located on the crimping surface 501, the testing device 1000 is adapted to test the channel performance of the test piece 2000, where both the inlet 2001 and the outlet 2002 are located on its top surface.

[0102] The first common outlet 1411a and the first common inlet 1321a can be recessed, protruded or flush on the pressing surface 501. Regardless of the method used, the placement of the first common outlet 1411a and the first common inlet 1321a will not interfere with the pressing surface 501 pressing the test piece 2000.

[0103] For some specific implementation methods, please refer to [link / reference]. Figure 9 The crimping assembly 500 has a first insertion portion 502 and a second insertion portion 503 protruding from the crimping surface 501. A first common inlet 1321a is located in the first insertion portion 502, and a first common outlet 1411a is located in the second insertion portion 503. At this time, both the first common inlet 1321a and the first common outlet 1411a protrude from the crimping surface 501. The first insertion portion 502 can be inserted into the liquid inlet 2001 of the test piece 2000, and the second insertion portion 503 can be inserted into the liquid outlet 2002 of the test piece 2000. This allows for convenient and quick connection between the first common inlet 1321a and the liquid inlet 2001 of the test piece 2000, as well as between the first common outlet 1411a and the liquid outlet 2002 of the test piece 2000. Simultaneously, it ensures a sealing effect between the connected ports.

[0104] It is conceivable that in some other embodiments, the first common outlet 1411a and the first common inlet 1321a may not be located on the crimping surface 501, but may be located on other surfaces of the crimping assembly 500. Alternatively, the first common outlet 1411a may include multiple first sub-ports, and the first common inlet 1321a may include multiple second sub-ports, with some of the first sub-ports and some of the second sub-ports located on the crimping surface 501, and the remaining first sub-ports and the remaining second sub-ports located on other surfaces of the crimping assembly 500. This is not limited here. In other embodiments, the arrangement of the first common outlet 1411a and the first common inlet 1321a may be adapted according to the location of the liquid inlet 2001 and the liquid outlet 2002.

[0105] In this embodiment, the switching valve 200 may have two interconnected valve ports. When the switching valve 200 moves relative to the pressing assembly 500, the two valve ports may be connected to the first end 131 of the liquid inlet channel 11 and the first common inlet channel 13a, respectively. At this time, the liquid inlet channel 11 and the first common inlet channel 13a are connected, while the air inlet channel 12 is not connected to the first common inlet channel 13a. Alternatively, the two valve ports may be connected to the first end 131 of the air inlet channel 12 and the first common inlet channel 13a, in which case the liquid inlet channel 11 and the first common inlet channel 13a are not connected. Of course, the switching valve 200 may also be configured in other ways, as long as it achieves the effect of selectively connecting either the liquid inlet channel 11 or the air inlet channel 12 to the first end 131 of the first common inlet channel 13a.

[0106] Optionally, the crimping assembly 500 not only crimps the test piece 2000 and tests the channel performance of the test piece 2000, but it can also pick up the test piece 2000 and transfer it onto the test socket 600. (Continue reading...) Figure 5 To facilitate the pickup and transfer of the test piece 2000, the crimping assembly 500 includes a crimping head 504 and a suction nozzle 505. The crimping surface 501, the detection channel 10, the switching valve 200, and the gas-liquid separator 20 are all located on the crimping head 504. The suction nozzle 505 is mounted on the crimping head 504 to adsorb the test piece 2000. Thus, when high and low temperature performance testing of the test piece 2000 is required, the suction nozzle 505 picks up the test piece 2000 and transfers it to the test holder 600 for testing. Multiple suction nozzles 505 can be arranged at intervals around the outer periphery of the crimping surface 501 to ensure effective adsorption of the test piece 2000.

[0107] Generally, the pressure head 504 is equipped with a vacuum passage, and the suction nozzle 505 is connected to the vacuum generator through the vacuum passage on the pressure head 504. When the vacuum generator is working, it generates a negative pressure inside the suction nozzle 505, and the suction nozzle 505 adsorbs the test piece 2000 under the action of the negative pressure.

[0108] In some implementations, see further reference. Figure 1 , Figure 2 and Figure 4 The pressure head 504 includes a separate tray 5041 and a pressing part 5042. The pressing surface 501, the detection flow channel 10, the switching valve 200, and the gas-liquid separator 20 are all located on the pressing part 5042. (Continue reading...) Figure 7 The tray 5041 has a through hole 5043, and a crimping part 5042 passes through the through hole 5043. The workpiece to be tested 2000 extends into the through hole 5043 for crimping by the crimping part 5042, or the crimping part 5042 extends out of the through hole 5043 to crimp the workpiece to be tested 2000. A vacuum passage is provided on the tray 5041, and the suction nozzle 505 is connected to the tray 5041. This facilitates the processing and manufacturing of the pressure head 504.

[0109] In this embodiment, the differential pressure detection element is disposed on the crimping portion 5042. Since the temperature detection element is used to detect the surface temperature of the test piece 2000, placing it on the crimping assembly 500 is inconvenient for detecting the surface temperature of the test piece 2000. Typically, the temperature detection element is disposed on an external structure such as the test base 600. When the crimping assembly 500 places the test piece 2000 on the external structure such as the test base 600, the temperature detection element comes into contact with the surface of the test piece 2000, thereby enabling the detection of its surface temperature. It should be noted that... Figure 4 The term "temperature sensor" only indicates its position relative to the device under test (DUT) 2000. In reality, the temperature sensor is not installed on the DUT 2000 but on an external structure.

[0110] In other embodiments, see Figures 10-13 The main body 100 includes a test seat 600, which has a detection channel 10 and a switching valve 200. The detection channel 10 and the switching valve 200 are correspondingly arranged, that is, the switching valve 200 on the test seat 600 can move relative to the test seat 600 so that the liquid inlet channel 11 and the air inlet channel 12 of the corresponding detection channel 10 can be selectively connected to the common inlet channel 13 of the corresponding detection channel 10.

[0111] For some specific implementation methods, please refer to [link / reference]. Figure 11 The test holder 600 has a bearing surface 6011 for supporting the test piece 2000. (See also...) Figures 13-17 The common inlet channel 13 includes a second common inlet channel 13b, and the common outlet channel 14 includes a second common outlet channel 14b. The second end 132 of the second common inlet channel 13b has a second common inlet 1321b, and the third end 141 of the second common outlet channel 14b has a second common outlet 1411b. Both the second common inlet 1321b and the second common outlet 1411b are located on the bearing surface 6011. The switching valve 200 moves relative to the test seat 600 to selectively connect either the liquid inlet channel 11 or the air inlet channel 12 to the second common inlet channel 13b.

[0112] Figure 13 The central inlet channel 11 is connected to the second common inlet channel 13b, and the green arrow indicates the direction of coolant flow. Figure 13 As can be seen, the coolant flows through the inlet channel 13 to the second common inlet channel 13b and enters the test piece 2000. The coolant flowing out of the test piece 2000 then flows through the second common outlet channel 14b to the gas-liquid separator 20, and finally flows out through the outlet channel 16.

[0113] Since both the second common outlet 1411b and the second common inlet 1321b are located on the bearing surface 6011, the detection device 1000 is adapted to detect the channel performance of the test piece 2000, where both the inlet 2001 and outlet 2002 face the bearing surface 6011. Typically, the bearing surface 6011 is the upper surface of the base 601, so the detection device 1000 is adapted to detect the channel performance of the test piece 2000, where both the inlet 2001 and outlet 2002 are located on its bottom surface.

[0114] For other specific implementations, see [link to relevant documentation]. Figures 18-20The test seat 600 has a first side surface 6023 intersecting with the bearing surface 6011. A common inlet channel 13 includes a third common inlet channel 13c, and a common outlet channel 14 includes a third common outlet channel 14c. The second end 132 of the third common inlet channel 13c has a third common inlet 1321c, and the third end 141 of the third common outlet channel 14c has a third common outlet 1411c. Both the third common inlet 1321c and the third common outlet 1411c are located on the first side surface 6023. A switching valve 200 moves relative to the test seat 600 to selectively connect either the liquid inlet channel 11 or the air inlet channel 12 to the third common inlet channel 13c.

[0115] Figure 20 The central inlet channel 11 is connected to the third common inlet channel 13c; the green arrow indicates the direction of coolant flow. Figure 20 As can be seen, the coolant flows through the inlet channel 13 to the third common inlet channel 13c and enters the test piece 2000. The coolant flowing out of the test piece 2000 then flows through the third common outlet channel 14c to the gas-liquid separator 20, and finally flows out from the outlet channel 16.

[0116] Since both the third common inlet 1321c and the third common outlet 1411c are located on the first side 6023, the detection device 1000 is adapted to detect the channel performance where both the inlet 2001 and the outlet 2002 are located on the side of the test piece 2000. Figure 21 The 2000 test pieces were inspected.

[0117] For further details on specific implementation methods, please refer to [link / reference]. Figure 20 The test fixture 600 is provided with a second common inlet channel 13b and a third common inlet channel 13c, as well as a second common outlet channel 14b and a third common outlet channel 14c. At this time, the switching valve 200 moves relative to the test fixture 600, causing the liquid inlet channel 11 and the air inlet channel 12 to selectively connect with one of the second common inlet channel 13b and the third common inlet channel 13c, while the other of the two channels remains blocked and cannot connect with either the liquid inlet channel 11 or the air inlet channel 12. This facilitates the testing of the test piece 2000 whose inlet port 2001 and outlet port 2002 are located at different positions.

[0118] Optionally, please continue reading Figure 10 and Figure 11 The test fixture 600 includes a base 601 and two clamping members 602. The two clamping members 602 are movably mounted on the base 601 along a first direction so that they can clamp the test piece 2000 close to each other or loosen the test piece 2000 by moving away from each other. The first direction intersects with the pressing direction of the pressing assembly 500 pressing the test piece 2000. Specifically, the first direction is perpendicular to the pressing direction.

[0119] Each clamping member 602 has a clamping surface 6023 at one end in the first direction for clamping the test piece 2000. A second common inlet channel 13b and a second common outlet channel 14b are provided on the base 601. A third common inlet channel 13c is provided on one clamping member 602, and a third common outlet channel 14c is provided on another clamping member 602. The liquid inlet channel 11, the air inlet channel 12, the switching valve 200, the air outlet channel 15, the liquid outlet channel 16, and the gas-liquid separator 20 are all provided on the base 601.

[0120] With the above configuration, when performing high and low temperature performance tests and channel performance tests on the test piece 2000, the clamping member 602 can clamp the test piece 2000 from both sides in the first direction, thereby reducing the displacement of the clamping member 602 on the base 601 and ensuring the test effect. It is understood that in some other embodiments, the test base 600 may omit the clamping member 601, in which case the bearing surface 6011 and the first side surface 6023 are both formed on the base 601.

[0121] The second common outlet 1411b and the second common inlet 1321b can be recessed, protruded, or flush with the bearing surface 6011. Regardless of the method used, the placement of the second common outlet 1411b and the second common inlet 1321b will not interfere with the bearing surface 6011 bearing the test piece 2000 and the test seat 600 testing the test piece 2000.

[0122] For some specific implementation methods, please refer to [link / reference]. Figure 17 The base 601 has a third insertion portion 6012 and a fourth insertion portion 6013 protruding from the bearing surface 6011. A second common inlet 1321b is located in the third insertion portion 6012, and a second common outlet 1411b is located in the fourth insertion portion 6013. Both the second common inlet 1321b and the second common outlet 1411b protrude from the bearing surface 6011. The third insertion portion 6012 can be inserted into the liquid inlet 2001 of the test piece 2000, and the fourth insertion portion 6013 can be inserted into the liquid outlet 2002 of the test piece 2000. This allows for convenient and quick communication between the second common inlet 1321b and the liquid inlet 2001 of the test piece 2000, as well as between the second common outlet 1411b and the liquid outlet 2002 of the test piece 2000, while also ensuring a sealing effect between the connected ports.

[0123] Usually, continue reading Figure 12The base 601 has a placement groove 6014, in which the test piece 2000 is placed. A bearing surface 6011 is formed on the bottom wall of the placement groove 6014. Two clamping members 602 are respectively installed on the two opposite side walls of the placement groove 6014 along a first direction. The placement groove 6014 facilitates the accommodating and limiting of the test piece 2000, and also facilitates the installation of the clamping members 602 and the base 601.

[0124] Optionally, please continue reading Figure 11 and Figure 17 The clamping member 602 includes a slide rod 6021 and a clamping block 6022. The slide rod 6021 is movably mounted on the base 601 along a first direction. The clamping block 6022 is connected to the slide rod 6021. When the slide rod 6021 moves relative to the base 601 along the first direction, the two clamping blocks 6022 move closer to each other to clamp the test piece 2000 or move away from each other to release the test piece 2000. The third common inlet channel 13c and the third common outlet channel 14c are each provided with two clamping blocks 6022.

[0125] Furthermore, the third common outlet 1411c and the third common inlet 1321c can be recessed, protruded, or flush with the corresponding first side 6023. Regardless of the method used, the placement of the third common outlet 141c1 and the third common inlet 1321c will not interfere with the clamping of the test piece 2000 by the first side 6023.

[0126] For some specific implementation methods, please refer to [link / reference]. Figure 17 The clamping block 6022 has a fifth insertion portion 6024 protruding from the first side 6023. A third common outlet 1411c is located at the fifth insertion portion 6024 of one clamping block 6022, and a third common inlet 1321c is located at the fifth insertion portion 6024 of the other clamping block 6022. The fifth insertion portions 6024 on the two clamping blocks 6022 can be inserted into the liquid inlet 2001 and the liquid outlet 2002 of the test piece 2000, respectively, so as to realize the connection between the third common inlet 1321c and the liquid inlet 2001 of the test piece 2000 and the third common outlet 1411c and the liquid outlet 2002 of the test piece 2000, while ensuring the sealing effect between the connected ports.

[0127] Furthermore, the switching valve 200 is movable relative to the base 601 to switch between a first state and a second state. See also... Figure 13 When the switching valve 200 is in the first state, it blocks the third common inlet channel 13c, and the switching valve 200 can move relative to the base 601 to allow either the liquid inlet channel 11 or the air inlet channel 12 to connect with the second common inlet channel 13b. (See also...) Figure 20When the switching valve 200 is in the second state, it blocks the second common inlet channel 13b, and the switching valve 200 can move relative to the base 601 to allow the liquid inlet channel 11 and the air inlet channel 12 to be selectively connected to the third common inlet channel 13c.

[0128] The above setup allows for the detection of a test piece 2000 with its inlet 2001 and outlet 2002 located on the bottom surface. This is achieved by connecting the inlet 2001 and outlet 2002 to the second common inlet 1321b and the second common outlet 1411b, respectively. The switching valve 200 is then operated in its first state, and its movement relative to the base 601 while in the first state allows the inlet flow channel 11 and the inlet flow channel 12 to sequentially connect to the second common inlet flow channel 13b. When it is necessary to test the test piece 2000 whose inlet 2001 and outlet 2002 are located on the side, connect its inlet 2001 and outlet 2002 to the third common inlet 1321c and the third common outlet 1411c respectively, operate the switching valve 200 to the second state, and operate its movement relative to the base 601 when the switching valve 200 is in the second state so that the inlet flow channel 11 and the inlet flow channel 12 are connected to the third common inlet flow channel 13c in sequence.

[0129] As can be seen, in the above embodiments, the movement of the switching valve 200 relative to the base 601 not only allows one of the second common inlet channel 13b and the third common inlet channel 13c to be in a blocked state while the other is in a connectable state, but also allows one of the liquid inlet channel 11 and the air inlet channel 12 to be connected to the common inlet channel 13 which is in a connectable state. This simplifies the structure and enables quick switching of the channels, improving detection efficiency. It is conceivable that in some other embodiments, a different structure could be provided so that one of the second common inlet channel 13b and the third common inlet channel 13c is in a blocked state while the other is in a connectable state. In this case, the switching valve 200 only has the function of allowing one of the liquid inlet channel 11 and the air inlet channel 12 to be connected to the common inlet channel 13 which is in a connectable state.

[0130] Specifically, see Figure 22 The switching valve 200 has a cylindrical structure. It has a first valve port 201 and a second valve port 202 spaced apart circumferentially, and the first valve port 201 and the second valve port 202 are interconnected. Furthermore, the switching valve 200 also has a third valve port 203 and a fourth valve port 204 spaced apart circumferentially, and the third valve port 203 and the fourth valve port 204 are interconnected. The first valve port 201 and the third valve port 203 are opposite each other and spaced apart along the axial direction of the switching valve 200, and the second valve port 202 and the fourth valve port 204 are opposite each other and spaced apart along the axial direction of the switching valve 200.

[0131] The switching valve 200 can switch between a first state and a second state when it rotates circumferentially relative to the base 601. When the switching valve 200 is in the first state or the second state, the switching valve 200 moves axially relative to the base 601 such that the liquid inlet channel 11 is connected to the corresponding common inlet channel 13 through the first valve port 201 and the second valve port 202, and the air inlet channel 12 is connected to the corresponding common inlet channel 13 through the third valve port 203 and the fourth valve port 204.

[0132] See Figure 13 , Figure 13 The switching valve 200 is in the first state. When the switching valve 200 is in the first state, it moves axially relative to the base 601. The liquid inlet channel 11 is connected to the first valve port 201, and the second valve port 202 is connected to the second common inlet channel 13b. Therefore, the liquid inlet channel 11 is connected to the second common inlet channel 13b. At this time, the air inlet channel 12 is not connected to the third valve port 203, and the second common inlet channel 13b is not connected to the fourth valve port 204. Coolant can enter the second common inlet channel 13b through the liquid inlet channel 11 to supply coolant to the test piece 2000. The coolant in the test piece 2000 flows to the gas-liquid separator 20 through the second common outlet channel 14b to facilitate the testing of the channel performance of the test piece 2000.

[0133] When the switching valve 200 is in the first state, the switching valve 200 is moved axially relative to the base 601. The inlet flow channel 12 is connected to the third valve port 203, and the fourth valve port 204 is connected to the second common inlet flow channel 13b. At this time, the liquid inlet flow channel 11 is not connected to the first valve port 201, and the second common inlet flow channel 13b is not connected to the second valve port 202. Gas can enter the second common inlet flow channel 13b through the inlet flow channel 12 to ventilate the test piece 2000. The gas in the test piece 2000 flows to the gas-liquid separator 20 through the second common outlet flow channel 14b to blow out the residual coolant in the test piece 2000.

[0134] Since the second common inlet 1321b and the second common outlet 1411b are located on the bearing surface 6011, when the switching valve 200 is in the first state, it is adapted to test the channel performance of the test piece 2000, where both the inlet 2001 and the outlet 2002 are located on the bottom surface of the test piece 2000.

[0135] See Figure 20 , Figure 20The switching valve 200 is in the second state. When the switching valve 200 is in the second state, the switching valve 200 is moved axially relative to the base 601, the liquid inlet channel 11 is connected to the second valve port 202, and the first valve port 201 is connected to the third common inlet channel 13c. At this time, the inlet flow channel 12 is not connected to the fourth valve port 204, and the third common inlet channel 13c is not connected to the third valve port 203. The inlet flow channel 12 is not connected to the third common inlet channel 13c. Coolant can enter the third common inlet channel 13c through the liquid inlet channel 11 to supply coolant to the test piece 2000. The coolant in the test piece 2000 flows to the gas-liquid separator 20 through the third common outlet channel 14c to facilitate the testing of the channel performance of the test piece 2000.

[0136] When the switching valve 200 is in the second state, the switching valve 200 is moved axially relative to the base 601. The inlet flow channel 12 is connected to the fourth valve port 204, and the third valve port 203 is connected to the third common inlet flow channel 13c. At this time, the liquid inlet flow channel 11 is not connected to the second valve port 202, and the third common inlet flow channel 13c is not connected to the first valve port 201. Gas can enter the third common inlet flow channel 13c through the inlet flow channel 12 to ventilate the test piece 2000. The gas in the test piece 2000 flows to the gas-liquid separator 20 through the third common inlet flow channel 13c to blow out the residual coolant in the test piece 2000.

[0137] Since the third common inlet 1321c and the third common outlet 1411c are located on the first side 6023, when the switching valve 200 is in the second state, it is adapted to test the channel performance where both the liquid inlet 2001 and the liquid outlet 2002 are located on the side of the test piece 2000.

[0138] The switching valve 200, with the above-described configuration, not only has a simple structure but also enables convenient and quick connection of the corresponding flow channels. It should be understood that in other embodiments, the switching valve 200 can be configured in other ways, as long as any configuration that enables connection of the corresponding flow channels and facilitates the testing of the channel performance of the test piece 2000 is acceptable.

[0139] In this embodiment, see Figure 18 , Figure 23 and Figure 24Since the clamping member 602 is movably mounted on the base 601, and the switching valve 200 is also mounted on the base 601, in order to facilitate the connection between the liquid inlet channel 11 or the air inlet channel 12 and the third common inlet channel 13c and to ensure the sealing during connection, the base 601 is usually provided with a first transition channel 6019. The air inlet channel 12 or the liquid inlet channel 11 is connected to the third common inlet channel 13c through the first transition channel 6019. When the switching valve 200 is rotated circumferentially relative to the base 601 to the second state, and then the switching valve 200 is moved axially relative to the base 601, one of the liquid inlet channel 11 and the air inlet channel 12 can be connected to the first transition channel 6019, and then connected to the third common inlet channel 13c through the first transition channel 6019.

[0140] Furthermore, please continue to refer to Figure 18 To facilitate the connection between the common outlet channel 14 on the clamping member 602 and the gas-liquid separator 20 on the base 601, a second transition channel 6010 is also provided on the base 601. The second common outlet channel 14c is connected to the gas-liquid separator 20 through the second transition channel 6010.

[0141] Optionally, please continue reading Figure 18 The base 601 includes a seat body 6015, a first pipe 6016, and a second pipe 6017. The liquid inlet channel 11, the air inlet channel 12, the liquid outlet channel 16, the air outlet channel 15, the gas-liquid separator 20, and the switching valve 200 are all located on the seat body 6015. The placement groove 6014, the bearing surface 6011, the first insertion part 502, and the second insertion part 503 are also located on the seat body 6015.

[0142] Both the first pipe 6016 and the second pipe 6017 are connected to the base 6015. The first pipe 6016 and the base 6015 together form the first transition channel 6019, and the second pipe 6017 and the base 6015 together form the second transition channel 6010. The base 6015 is provided with two opposing mounting slots 6018, and the first pipe 6016 and the second pipe 6017 are respectively located in the two opposing mounting slots 6018. The clamping blocks 6022 of the two clamping members 602 are respectively accommodated in the two mounting slots 6018. The first pipe 6016 and the second pipe 6017 are respectively movably inserted into the two clamping blocks 6022 along the first direction to realize the communication between the first transition channel 6019 and the third common inlet channel 13c and the second transition channel 6010 and the third common outlet channel 14c. It is conceivable that in other embodiments, the structure of the base 601 is not limited to the above-described manner, and other methods that can achieve the corresponding functions can also be used. The choice can be made as needed, and no limitation is made here.

[0143] It should be noted that, since the clamping member 602 is a movable part relative to the base 601, it is inconvenient to install the differential pressure detection element. Typically, the differential pressure detection element is installed on the base 601 and the pressure difference between the first transition channel 6019 and the second transition channel 6010 is used to characterize the pressure difference between the third common inlet channel 13c and the third common outlet channel 14c, thereby characterizing the inlet and outlet pressure difference of the test component 2000. Specifically, when the differential pressure detection element includes a first pressure sensor 301 and a second pressure sensor 302, both the first pressure sensor 301 and the second pressure sensor 302 are installed on the base 6015. The first pressure sensor 301 detects the pressure in the first transition channel 6019 to characterize the pressure within the third common inlet channel 13c, and the second pressure sensor 302 detects the pressure in the second transition channel 6010 to characterize the pressure within the third common outlet channel 14c, thus obtaining the inlet and outlet pressure difference of the test component 2000.

[0144] An embodiment of this application also provides a test sorting machine, including a feeding device, a conveying device, a testing device, and a receiving device, wherein the testing device includes the aforementioned detection device 100.

[0145] The feeding device provides the test piece 2000 to the conveying device, which in turn transports the test piece 2000 provided by the feeding device. The testing device receives the test piece 2000 transported by the conveying device and tests it. The conveying device can also transport the tested test piece 2000 to the receiving device for collection. Since the above-mentioned testing device 100 has beneficial effects, the testing and sorting machine including the above-mentioned testing device 100 has the same beneficial effects, which will not be described in detail here.

[0146] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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.

[0147] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A detection device, characterized in that, include: The main body (100) has a detection channel (10) inside; the detection channel (10) includes a liquid inlet channel (11), an air inlet channel (12) and a common inlet channel (13). A switching valve (200) is movably mounted on the main body (100) so that it can move relative to the main body (100) to allow the liquid inlet channel (11) and the air inlet channel (12) to be selectively connected to one end of the common inlet channel (13), the other end of which is used to connect to the liquid inlet (2001) of the test piece (2000); The detection channel (10) also includes a common outlet channel (14), one end of which is used to connect with the liquid outlet (2002) of the test piece (2000), and the other end is used to connect with the outside. The test piece is configured to, when supplying coolant to the test piece (2000) through the flow channel in the body (100), acquire at least one of the following: the pressure difference between the inlet and outlet of the test piece (2000), the temperature difference between different regions of the test piece (2000), and the surface temperature of the test piece (2000) at multiple times.

2. The detection device according to claim 1, characterized in that, The detection element includes a differential pressure detection element, which includes a first pressure sensor (301) and a second pressure sensor (302) both mounted on the main body (100). The first pressure sensor (301) is used to acquire the pressure of the common inlet channel (13) to characterize the pressure of the liquid inlet (2001) of the test piece (2000), and the second pressure sensor (302) is used to acquire the pressure of the common outlet channel (14) to characterize the pressure of the liquid outlet (2002) of the test piece (2000). and / or The detection element includes a temperature detection element, which includes a first temperature sensor (401) and a second temperature sensor (402). The first temperature sensor (401) is used to detect the surface temperature of the inlet (2001) area of ​​the test piece (2000), and the second temperature sensor (402) is used to detect the surface temperature of the outlet (2002) area of ​​the test piece (2000).

3. The detection device according to claim 1, characterized in that, The detection channel (10) also includes an outlet air channel (15) and an outlet liquid channel (16), both of which are connected to the end of the common outlet channel (14) used for communication with the outside.

4. The detection device according to claim 3, characterized in that, The main body (100) is provided with a gas-liquid separator (20), the common outlet channel (14) is connected to the inlet of the gas-liquid separator (20), and the gas-liquid separator (20) has an exhaust port and a liquid outlet; The liquid outlet channel (16) is connected to the liquid outlet, and the gas outlet channel (15) is connected to the gas outlet.

5. The detection device according to any one of claims 1-4, characterized in that, The main body (100) includes a crimping assembly (500), which is used to crimp the test piece (2000) onto the test holder (600) for high and low temperature performance testing; the crimping assembly (500) is provided with a corresponding detection channel (10) and a switching valve (200). and / or The main body (100) includes a test seat (600), which is used to place the test piece (2000) for crimping by the crimping assembly (500) to perform high and low temperature performance testing on the test piece (2000); the test seat (600) is provided with a corresponding detection channel (10) and a switching valve (200).

6. The detection device according to claim 5, characterized in that, The crimping assembly (500) has a crimping surface (501) for crimping the test piece (2000). The common inlet channel (13) and the common outlet channel (14) respectively include a first common inlet channel (13a) and a first common outlet channel (14a). The first common inlet channel (13a) and the first common outlet channel (14a) respectively have a first common inlet (1321a) and a first common outlet (1411a) communicating with the test piece (2000). The common inlet (1321a) and the common outlet (1411a) are both provided on the crimping surface (501). and / or The crimping assembly (500) includes a crimping head (504) and a suction nozzle (505). The suction nozzle (505) is mounted on the crimping head (504) for adsorbing the test piece (2000). The crimping head (504) is used to crimp the test piece (2000) onto the test seat (600) for testing. The detection channel (10) and the switching valve (200) are both located on the crimping head (504).

7. The detection device according to claim 5, characterized in that, The test stand (600) has a bearing surface (6011) for bearing the test piece (2000) and a first side surface (6023) intersecting the bearing surface (6011). The common inlet channel (13) includes a second common inlet channel (13b) and / or a third common inlet channel (13c), and the common outlet channel (14) includes a second common outlet channel (14b) and / or a third common outlet channel (14c); the second common inlet channel (13b) and the third common inlet channel (13c) respectively have a second common inlet (1321b) and a third common inlet (1321c) communicating with the test piece (2000), and the second common outlet channel (14b) and the third common outlet channel (14c) respectively have a second common outlet (1411b) and a third common outlet (1411c) communicating with the test piece (2000). The second common inlet (1321b) and the second common outlet (1411b) are provided on the bearing surface (6011), and the third common inlet (1321c) and the third common outlet (1411c) are provided on the first side surface (6023). The switching valve (200) moves relative to the test seat (600) to connect the liquid inlet channel (11) and the air inlet channel (12) to a corresponding common inlet channel (13).

8. The detection device according to claim 7, characterized in that, The test fixture (600) includes a base (601) and two clamping members (602). The two clamping members (602) are movably mounted on the base (601) along a first direction so as to clamp the test piece (2000) close to each other or loosen the test piece (2000) away from each other. The first direction intersects with the pressing direction of the pressing assembly (500) pressing the test piece (2000). The clamping surface of each clamping member (602) for clamping the test piece (2000) at one end in the first direction is the first side surface (6023). The second common inlet channel (13b) and the second common outlet channel (14b) are provided on the base (601), the third common inlet channel (13c) is provided on one of the clamping members (602), and the third common outlet channel (14c) is provided on another clamping member (602); The liquid inlet channel (11), the air inlet channel (12), and the switching valve (200) are all located on the base (601).

9. The detection device according to claim 7, characterized in that, The common inlet channel (13) includes the second common inlet channel (13b) and the third common inlet channel (13c), and the common outlet channel (14) includes the second common outlet channel (14b) and the third common outlet channel (14c). The switching valve (200) is movable relative to the test seat (600) to switch between a first state and a second state; When the switching valve (200) is in the first state, it blocks the third common inlet channel (13c), and the switching valve (200) moves relative to the test seat (600) to allow the liquid inlet channel (11) and the air inlet channel (12) to connect with the second common inlet channel (13b) in one of them. When the switching valve (200) is in the second state, it blocks the second common inlet channel (13b). The switching valve (200) moves relative to the test seat (600) to allow the liquid inlet channel (11) and the air inlet channel (12) to connect with the third common inlet channel (13c).

10. The detection device according to claim 9, characterized in that, The switching valve (200) has a first valve port (201) and a second valve port (202) that are circumferentially spaced and connected thereto, and a third valve port (203) and a fourth valve port (204) that are circumferentially spaced and connected thereto; the first valve port (201) and the third valve port (203) are axially spaced along the switching valve (200), and the second valve port (202) and the fourth valve port (204) are axially spaced along the switching valve (200); The switching valve (200) rotates circumferentially relative to the test seat (600) to switch between the first state and the second state; When the switching valve (200) is in the first state and the second state, the switching valve (200) moves along its axial direction relative to the test seat (600) such that the liquid inlet channel (11) is connected to the corresponding common inlet channel (13) through the first valve port (201) and the second valve port (202), and the inlet flow channel (12) is connected to the corresponding common inlet channel (13) through the third valve port (203) and the fourth valve port (204).

11. A testing and sorting machine, characterized in that, It includes a feeding device, a conveying device, a testing device, and a receiving device, wherein the testing device includes the detection device as described in any one of claims 1-10; The feeding device is used to provide the test piece (2000) to the conveying device. The conveying device is used to transport the test piece (2000) provided by the feeding device. The testing device is used to receive the test piece (2000) transported by the conveying device and test it. The conveying device can also transport the tested test piece (2000) to the receiving device for collection.

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