Fluid control valve, refrigerant device, and processing machine

Abstract

The fluid control valve includes a valve member, a valve blocker, and an anti-leaking member. The valve member has a first, a second, and a third cavities communicating with each other. A first connecting portion and a pushing portion are arranged outside the first cavity. The valve blocker is movable in the first cavity to open or to close the second and the third cavities. The anti-leaking member includes a main body and a sealing member. The main body has a support portion to be disposed with the sealing member. An end of the main body is defined as a second connecting portion which is movable along the first connecting portion. The other end of the main body is defined as a dodging portion communicating with the second connecting portion. The two lateral faces of the sealing member are defined as a bearing area and an identification area. The bearing area bears the pushing force from the pushing portion and the identification area is moved to the identification position with respect to the dodging portion so as to notice that the sealing member has firmly sealed the first cavity.

Description

Fluid control valves, refrigerant units and operating machines The present invention provides a fluid control valve that allows for rapid confirmation that the leak preventer has tightly and reliably sealed the first chamber of the valve, thereby improving the leak preventer's performance. Currently, as shown in Figures 1 to 3, the testing machine is equipped with a testing device 12 on the machine base 11. The testing device 12 is equipped with a tester 121 for holding and testing electronic components, and a crimping arm 122 that can be displaced in the YZ direction. The crimping arm 122 is equipped with a temperature controller 123 and a pressure reducer 124. The temperature controller 123 is connected to a refrigerant device 13 independently configured outside the machine base 11. The refrigerant device 130 of the refrigerant device 13 is connected to a fluid control valve, which can be a refrigerant control valve 132, located on the side of the machine base 11 via a first delivery pipe 131. The refrigerant control valve 132 delivers refrigerant to the temperature controller 123 via a second delivery pipe 133. The low-temperature temperature controller 123 can control the temperature of the electronic components of the tester 121 via the pressure reducer 124, so that the electronic components can perform testing operations in a low-temperature environment simulating the future application environment. However, when moving the testing machine, the operator must separate the first delivery pipe 131 of the refrigerant device 13 from the refrigerant control valve 132 and close the refrigerant control valve 132. As shown in Figure 2, the refrigerant control valve 132 has a first chamber 1321, a second chamber 1322 and a third chamber 1323 that are in communication. The third chamber 1323 is connected to the first delivery pipe 131. The second chamber 1322 is also equipped with a connecting pipe 1324 that is connected to the second delivery pipe 133. A movable valve plug 1325 with an O-ring 1326 is placed in the first chamber 1321. The refrigerant control valve 132 is also equipped with a cap 1327 with a thin gasket 1328 inside to close the opening of the first chamber 1321. The operator can first remove the cap 1327 and rotate the valve plug 1325 to move it inward in the first chamber 1321 to close the second chamber 1322 and the third chamber 1323, thereby closing the refrigerant control valve 132. Conversely, as shown in Figure 3, after positioning and testing the machine, the valve plug 1325 can be rotated to move in the opposite direction to open the second chamber 1322 and the third chamber 1323, and the cap 1327 can be screwed onto the outside of the first chamber 1321. A thin gasket 1328 can be used to seal the opening of the first chamber 1321 to prevent refrigerant leakage. However, as shown in Figure 3, under repeated opening and closing operations, the O-ring 1326 of the valve plug 1325 of the refrigerant control valve 132 is prone to wear and deformation due to reciprocating friction within the first chamber 1321. The thin gasket 1328 will also be deformed by pressure damage due to repeated installation and removal of the cover 1327. Under these deformation factors, if the force of the operator in manually locking the cover 1327 is insufficient, the deformed thin gasket 1328 of the cover 1327 may not be able to fit tightly against the opening of the first chamber 1321, causing refrigerant to leak between the first chamber 1321 and the cover 1327. This not only wastes refrigerant energy costs but also requires downtime to deal with the leaked refrigerant, affecting production efficiency. For countries with high environmental protection requirements, the issue of whether leakage prevention is reliable is particularly important. The first objective of this invention is to provide a fluid control valve, comprising a valve, a valve plug, and a leak preventer; the valve has a first chamber and a second chamber communicating along a first axial direction, and a third chamber communicating with the first chamber along a second axial direction; a pushing portion and a first engaging portion are provided outside the first chamber; the valve plug is displaceable within the first chamber of the valve, thereby opening and closing the second and third chambers; the leak preventer comprises a body and a sealing member, the body having a supporting portion inside, one side of the supporting portion defining a second engaging portion, the second engaging portion being displaceable along the first engaging portion of the valve, and the other side of the supporting portion defining... The device has a clearance portion connected to the second joint portion. The sealing member is assembled on the support portion of the body and has a bearing area and an identification area on both sides. The bearing area is relative to the pushing part of the valve, and the identification area is relative to the clearance portion of the body. In this way, the second joint portion of the anti-leak device is displaced along the first joint portion of the valve, so that the bearing area bears the pushing force of the pushing part of the valve and bends and deforms towards the clearance portion, so that the identification area is displaced to a preset identification position, so that the staff can quickly confirm by inspection tools or visual inspection that the anti-leak device has effectively sealed the first chamber of the valve, thereby achieving the practical benefit of effective anti-leakage. The second objective of this invention is to provide a fluid control valve in which the sealing area of ​​the anti-leakage device bends and deforms towards the relief area under the pushing force of the valve's pushing part, causing the identification area to shift to a preset identification position. This allows the operator to quickly confirm that the anti-leakage device has effectively sealed the first chamber of the valve to prevent leakage, eliminating the need for downtime to clean up leaked fluid and achieving practical benefits such as saving fluid energy costs and improving production efficiency. The third objective of this invention is to provide a fluid control valve in which the sealing area of ​​the anti-leakage device bends and deforms towards the relief area under the pushing force of the valve's pushing part, causing the identification area to shift to a preset identification position, so that the operator can quickly confirm that the anti-leakage device has effectively sealed the first chamber of the valve to prevent leakage, thereby effectively preventing the fluid from the fluid control valve from polluting the factory area and improving the environmental quality of the factory area. The fourth objective of this invention is to provide a refrigerant device, comprising a refrigerant mechanism and the fluid control valve of this invention; the refrigerant mechanism is provided with at least one refrigerant reservoir, at least one first conveyor and at least one second conveyor, the refrigerant reservoir being able to supply refrigerant, and the first conveyor being connected to the refrigerant reservoir to convey refrigerant; the fluid control valve of this invention comprises a valve, a valve plug and a leak preventer, the third chamber of the valve being able to connect to the first conveyor of the refrigerant mechanism, and the second chamber being connected to the second conveyor to convey refrigerant, and the fluid control valve being able to reliably control the supply or stoppage of refrigerant. The fifth objective of this invention is to provide a working machine, comprising a machine base, a feeding device, a receiving device, a working device, a refrigerant device of this invention, a transfer device, and a central control device. The feeding device is disposed on the machine base and is provided with at least one feeder for accommodating at least one electronic component to be tested. The receiving device is disposed on the machine base and is provided with at least one receiver for accommodating at least one tested electronic component. The working device is disposed on the machine base and is provided with at least one working device and at least one temperature controller. The working device is used to perform preset operations on the electronic component, and the temperature controller is used to control the temperature of the electronic component. The refrigerant device includes a refrigerant. The invention includes a mechanism and at least one fluid control valve. The refrigerant mechanism is provided with at least one refrigerant reservoir, at least one first conveyor, and at least one second conveyor. The refrigerant reservoir is capable of supplying refrigerant. The first conveyor is connected to the refrigerant reservoir to convey refrigerant. The second conveyor is connected to at least one thermostat to convey refrigerant. The valve of the invention is connected to the first and second conveyors and is capable of supplying or stopping the refrigerant to the at least one thermostat. A transfer device is disposed on the machine base and is provided with at least one transfer device for transferring electronic components. A central control device is used to control and integrate the operation of each device to perform automated operation. To enable your review committee to gain a further understanding of the present invention, a preferred embodiment is described in detail below with reference to the accompanying drawings: Please refer to Figure 4. The fluid control valve 20 of the present invention includes a valve 21, a valve plug 22, and a leak preventer 23. The valve 21 has a first chamber and a second chamber communicating with each other along the first axis A, and a third chamber communicating with the first chamber along the second axis B. The valve 21 also has a push part and a first engagement part outside the first chamber. In this embodiment, the valve 21 is provided with a first valve section 211 and a second valve section 212 along the first axial direction A, and a third valve section 213 of appropriate length along the second axial direction B. The first valve section 211 has a first chamber 214 with a larger diameter recessed at its end along the first axial direction A, and the interior of the first chamber 214 is provided with an internal thread 2141. The second valve section 212 has a second chamber 215 with a smaller diameter recessed at its end along the first axial direction A and communicating with the first chamber 214. The second chamber 215 and the first chamber 214 are designed in a stepped manner. The end of the third valve section 213 has a third chamber 216 that communicates with the first chamber 214 recessed along the second axial direction B. The valve 21 defines a push portion 217 at the end of the first valve section 211. That is, the push portion 217 is defined on the outside of the first chamber 214. Furthermore, the push portion 217 can have an appropriate taper. The valve 21 has a first engagement portion 218 between the push portion 217 and the third valve section 213. In this embodiment, the first engagement portion 218 is an external thread. The valve plug 22 can be displaced in the first chamber 214 of the valve 21, thereby opening and closing the second chamber 215 and the third chamber 216. In this embodiment, one end of the valve plug 22 is provided with a stop portion 221, and the other end is provided with a drive portion 222. The drive portion 222 is a polygonal hole for a drive tool (such as a screwdriver or hex wrench, not shown in the figure) to engage and drive the valve plug 22 to move. The outer ring surface of the valve plug 22 is provided with an external thread 223, which can engage with the internal thread 2141 of the first chamber 214 and move along the first axial direction A, or can disengage from the internal thread 2141 of the first chamber 214 and disengage from the valve 21. At least one O-ring 224 is fitted on the outer ring surface of the valve plug 22 at an appropriate position near the drive portion 222 to assist in preventing leakage. The leak-proof device 23 includes a body 231 and a closure 232. The body 231 has a support portion inside, one side of which defines a second joint portion that can be displaced along the first joint portion 218 of the valve 21, and the other side of which defines a clearance portion that communicates with the second joint portion. In this embodiment, the interior of the main body 231 is provided with a hollow space along the first axial direction A and penetrating the first surface 2311 and the second surface 2312, and a support portion 2314 is radially recessed on the inner wall surface 2313 of the hollow space. Furthermore, the support portion 2314 has a stop surface 2315. According to operational requirements, the main body 231 is provided with a limiting structure on the supporting portion 2314 to limit the closing member 232. The limiting structure is provided with at least one limiting member at a position relative to the stop surface 2315 of the supporting portion 2314. The limiting member can be a limiting surface or a limiting ring, and is not limited to this embodiment. In this embodiment, the limiting structure is provided with a limiting member, which is a limiting surface 2316, at a position relative to the stop surface 2315 of the supporting portion 2314, so that the supporting portion 2314 uses the stop surface 2315 and the limiting surface 2316 to limit the closing member 232. The first surface 2311 of the body 231 is recessed towards the second surface 2312, and a second engaging portion 2317 is provided. The second engaging portion 2317 has an internal thread and can be screwed into or separated from the first engaging portion 218 of the valve 21. The second surface 2312 of the body 231 is recessed towards the first surface 2311, and a clearance portion 2318 communicating with the second engaging portion 2317 is provided. Furthermore, the depth dimension of the clearance portion 2318 is smaller than the depth dimension of the second engaging portion 2317, so as to shorten the actuation sequence of the identification area of ​​the closure 232 to the preset identification position. The closure 232 is made of a soft material and can be bent and deformed elastically. It is assembled on the support part 2314 of the body 231. The closure 232 has a support area 2321 and an identification area 2322. The support area 2321 can withstand the pushing force of the push part 217 of the valve 21. The identification area 2322 can be displaced relative to the clearance part 2318 to the preset identification position C. As shown in Figure 4, in a first embodiment of the closure member 232, a bearing area 2321 is defined on one side of the closure member 232 relative to the pushing portion 217 of the valve 21. The area of ​​the bearing area 2321 is larger than the area of ​​the opening of the first chamber 214 to ensure a secure closure of the first chamber 214. At least one receiving area 2323 is provided around the bearing area 2321 of the closure member 232. The receiving area 2323 can be installed into the receiving portion 2314 of the body 231 and is limited by the stop surface 2315 and the limiting surface 2316 of the receiving portion 2314. The other side of the closure 232 is provided with an identification area 2322 relative to the clearance portion 2318. Furthermore, the identification area is provided with at least one mark. The mark can be a colored coating or a polygonal pattern, etc., which allows workers to more quickly visually identify whether the mark has shifted to a preset identification position C. The preset identification position C can be a position flush with or extending beyond the second surface 2312 of the leak-proof device 23. In this embodiment, the preset identification position C is defined as a position flush with the second surface 2312 of the body 231 of the leak-proof device 23. Depending on the operational requirements, the second chamber 215 of the valve 21 can be equipped with at least one transfer pipe 24, which can transport fluid from the valve 21. Referring to Figure 5, the fluid control valve 20 can control the delivery of fluid, which can be refrigerant or gas, etc. In this embodiment, the fluid control valve 20 is applied to a refrigerant device (not shown in the figure) as a refrigerant control valve, and the fluid is refrigerant. The third valve section 213 of the valve 21 of the fluid control valve 20 can be fitted with the first delivery device 31 of the refrigerant device. The first delivery device 31 can deliver refrigerant from a refrigerant device (not shown in the figure) to the third chamber 216 of the valve 21. The second valve section 212 of the valve 21 can be fitted to the side of the machine base 40 and connected to the second delivery device 32 of the refrigerant device via the adapter pipe 24. The second delivery device 32 can be connected to a thermostat (not shown in the figure), so that the fluid control valve 20 delivers refrigerant to the thermostat via the second delivery device 32. However, when moving the work machine, it is necessary to close the fluid control valve 20 of the refrigerant device. The operator can rotate the body 231 of the anti-leakage device 23. The second joint 2317 of the body 231 is displaced outward along the first axis A on the first joint 218 of the valve 21, so that the operator can use a wrench (not shown) to reach into the first chamber 214 of the valve 21 and insert the driving part 222 of the valve plug 22 to drive it to rotate. The external thread 223 of the valve plug 22 moves along the internal thread 2141 of the valve 21 and moves in the first chamber 214, so that the stop part 221 of the valve plug 22 is embedded and closed in the second chamber 215 of the valve 21. The valve plug 22 itself closes the third chamber 216, thereby closing the fluid control valve 20. Please refer to Figure 6. After the moving machine is completed, the operator uses a wrench (not shown) to rotate the valve plug 22 outward in the first chamber 214 of the valve 21. The valve plug 22 itself moves away from the opening of the third chamber 216 of the valve 21, and the stop part 221 moves away from the opening of the second chamber 215. This allows the valve plug 22 to open the second chamber 215 and the third chamber 216 of the valve 21, so that the second chamber 215 and the third chamber 216 can transport the refrigerant of the first conveyor 31 to the second conveyor 32 and the thermostat (not shown) via the transfer pipe 24. To effectively prevent refrigerant leakage from valve 21, the operator screws the second joint 2317 of the body 231 of the leak preventer 23 onto the first joint 218 of valve 21, and gradually moves the body 231 towards the valve 21 along the first axial direction A. Because the bearing area 2321 of the sealing member 232 is relative to the pushing part 217 of valve 21, during the displacement of the leak preventer 23, the bearing area 2321 of the sealing member 232 will first adhere to the pushing part 217 of valve 21 and the opening of the first chamber 214, and withstand the pushing force of the pushing part 217, thus sealing the valve. As the bearing area 2321 of component 232 gradually bends and deforms towards the relief portion 2318 under the force, the identification area 2322 is displaced along the first axis A towards the relief portion 2318. When the staff uses inspection tools or visual inspection to see that the identification area 2322 of the sealing component 232 is flush with or has exceeded the preset identification position C of the body 231, they can quickly know that the anti-leakage device 23 has reliably and tightly sealed the first chamber 214 of the valve 21, so as to facilitate the process of the fluid control valve 20 transporting refrigerant. It can reliably and effectively prevent leakage, save energy costs and improve the environmental quality of the plant area. Please refer to Figures 7 and 8. The first and second embodiments of the sealing member 232 of the fluid control valve 20 are designed in a similar manner. The difference in the second embodiment is that the identification area 2322 of the sealing member 232 is marked with a color coating 2324. The sealing member 232 is assembled on the support portion 2314 of the body 231. As the support area 2321 of the sealing member 232 gradually bears the push of the push portion 217 of the valve 21 and bends and deforms towards the relief portion 2318 of the body 231, the identification area 2322 is displaced along the first axis A towards the relief portion 2318. This causes the mark 2324 of the identification area 2322 of the sealing member 232 to exceed the preset identification position C of the body 231. After visually observing the mark 2324 of the sealing member 232, the operator can quickly know that the anti-leakage device 23 has effectively and tightly sealed the first chamber 214 of the valve 21 to prevent leakage. Referring to Figure 9, the first embodiment of the closure member 232 of the fluid control valve 20 is largely the same as the third embodiment in design. The difference in the third embodiment is that the identification area 2322 of the closure member 232 has a raised stepped portion 2325, and at least one mark 2327 is provided on the outer ring surface 2326 of the stepped portion 2325. The mark 2327 can be a pattern, a groove, or a color ring, etc. In this embodiment, the closure member 232 has a mark 2327, which is a color ring, on the outer ring surface 2326 of the stepped portion 2325 of the identification area 2322. The sealing member 232 is assembled on the support portion 2314 of the body 231. As the bearing area 2321 of the sealing member 232 gradually bears the push of the valve 21's push portion 217 and bends and deforms toward the relief portion 2318, the identification area 2322 is displaced along the first axis A toward the relief portion 2318, so that the mark 2327 of the identification area 2322 of the sealing member 232 exceeds the preset identification position C of the body 231. After visually observing the mark 2327 of the sealing member 232, the operator can quickly know that the anti-leakage device 23 has effectively and tightly sealed the first chamber 214 of the valve 21 and effectively prevented leakage. Please refer to Figures 4-6 and 10. The electronic component testing machine includes a machine base 40, a feeding device 50, a receiving device 60, a testing device 70, the refrigerant device 30 of this invention, a transfer device 80, and a central control device (not shown). The feeding device 50 is mounted on the machine base 40 and is provided with at least one feeder to accommodate at least one electronic component to be tested. The receiving device 60 is mounted on the machine base 40 and is provided with at least one receiver to accommodate at least one electronic component that has already been tested. The working device 70 is disposed on the machine base 40 and is provided with at least one working device and at least one temperature controller. The working device is used to perform preset operations on the electronic components, and the temperature controller is used to control the temperature of the electronic components. Furthermore, the working device can be a crimping device, a preheating plate, or a stage, etc. In this embodiment, the working device 70 is a testing device, which is provided with a plurality of working devices, including at least one first working device and at least one second working device. The first working device is a tester 71, which is disposed on the machine base 40 for testing electronic components. The second working device is a crimping device 72 that can be displaced in at least one direction for transferring and crimping the electronic components on the tester 71. The testing device is provided with a temperature controller 73 on the crimping device 72 for controlling the temperature of the electronic components. The refrigerant device 30 of the present invention is provided with a refrigerant mechanism and at least one fluid control valve 20. The refrigerant mechanism is provided with at least one refrigerant receiver 33, at least one first conveyor 31 and at least one second conveyor 32. The refrigerant receiver 33 supplies refrigerant, and the first conveyor 31 can be connected to the refrigerant receiver 33 to deliver refrigerant. The at least one fluid control valve 20 is disposed on the side of the machine base 40 and includes a valve 21, a valve plug 22 and a leak preventer 23. The third chamber 216 of the valve 21 is connected to the first conveyor 31, and the second chamber 215 is connected to the second conveyor 32 via a transfer pipe 24. The second conveyor 32 is then connected to the temperature controller 73 of the operating device 70, so that the fluid control valve 20 can control the supply or stop of refrigerant to the refrigerant receiver 33 to the temperature controller 73. The transfer device 80 is mounted on the machine base 40 and is provided with at least one transferor for transferring electronic components. In this embodiment, the first transferor 81 of the transfer device 80 takes out the electronic component to be tested from the feeder of the feeding device 50 and transfers the electronic component to be tested to the second transferor 82. The second transferor 82 carries the electronic component to be tested to one side of the working device 70, so that the crimping device 72 can transfer the electronic component to be tested between the second transferor 82 and the tester 71, and transfer the tested electronic component between the tester 71 and the third transferor 83. The third transferor 83 removes the tested electronic component, so that the fourth transferor 84 can take out the tested electronic component and transfer it to the receiving device 60 for sorting and storage according to the test results. The central control device (not shown) is used to control and integrate the operation of each device to perform automated operation and achieve the practical benefit of improving work efficiency. [Preferred] 1: Machine base 12: Testing device 121: Tester 122: Crimping arm 123: Temperature controller 124: Pressure reducer 13: Refrigerant device 130: Refrigerant receiver 131: First delivery pipe 132: Refrigerant control valve 1321: First chamber 1322: Second chamber 1323: Third chamber 1324: Adapter pipe 1324: Valve plug 1326: O-ring 1327: Cap 1328: Thin gasket 133: Second delivery pipe [Invention] 20: Fluid control valve 21: Valve 211: First valve section 212: Second valve section 213: Third valve section 214: First chamber 2141: Internal thread 215: Second chamber 216: Third chamber 217: Pushing part 218: First joint 22: Valve plug 221: Stopping part 222: Drive part 223: External thread 224: O-ring 23: Leakage preventer 231: Body 2311: First surface 2312: Second surface 2313: Inner wall surface 2314: Support part 2315: Stop surface 2316: Limiting surface 2317: Second joint 2318: Relief part 232: Enclosure 2321: Supporting Area 2322: Identification Area 2323: Loading Area 2324: Marking 2325: Step Section 2326: Outer Circumference 2327: Marking 24: Transfer Pipe A: First Axial Direction B: Second Axial Direction C: Preset Identification Position 31: First Conveyor 32: Second Conveyor 33: Refrigerant 40: Machine Base 50: Feeding Device 60: Receiving Device 70: Working Device 71: Tester 72: Crimping Device 73: Temperature Controller 80: Transfer Device 81: First Transfer Device 82: Second Transfer Device 83: Third Transfer Device 84: Fourth Transfer Device Figure 1: Schematic diagram of a conventional testing machine. Figures 2 and 3: Schematic diagram of the use of a conventional refrigerant control valve. Figure 4: Exploded view of the fluid control valve of the present invention. Figures 5 and 6: Schematic diagram of the use of the fluid control valve of the present invention. Figures 7 and 8: Second embodiment diagram of the sealing member of the present invention. Figure 9: Third embodiment diagram of the sealing member of the present invention. Figure 10: Schematic diagram of the testing machine of the present invention. 20: Fluid control valve 21: Valves 214: First Chamber 215: Second Chamber 216: Third Chamber 217: Top Pushing Section 218: First joint 22: Valve plug 221: Stop section 23: Leakage prevention gear 231:Ontology 2317: Second joint 2318: Abdication Department 232: Enclosure 2321: Receiving Area 2322: Identify Region 24: Transfer of Control A: First axial direction C: Preset identification position 31: First Conveyor 32: Second Conveyor

Claims

1. A fluid control valve includes: a valve assembly: having a first chamber and a second chamber communicating along a first axial direction, and a third chamber communicating along a second axial direction, and having a push portion and a first engagement portion outside the first chamber; a valve plug: capable of displacement within the first chamber of the valve assembly, thereby opening and closing the second chamber and the third chamber; and a leak preventer: including a body and a sealing member, the body having a supporting portion inside, one side of the supporting portion defining a second engagement portion, capable of displacement along the first engagement portion of the valve assembly, the other side of the supporting portion defining a clearance portion communicating with the second engagement portion, the sealing member being assembled to the supporting portion of the body, and having a bearing area and a recognition area, the bearing area being capable of withstanding the pushing force of the push portion of the valve assembly, and the recognition area being capable of displacement relative to the clearance portion to a preset recognition position. As described in claim 1, the fluid control valve of the anti-leakage device has a support portion radially recessed on the inner wall surface of its body, a second engagement portion recessed on the first surface facing the second surface, and a clearance portion communicating with the second engagement portion on the second surface facing the first surface. The fluid control valve as described in claim 1 has a limiting structure on the receiving portion of the body of the anti-leakage device to limit the closure. As described in claim 1, the depth dimension of the clearance portion of the anti-leakage device of the fluid control valve is smaller than the depth dimension of the second engagement portion. As described in claim 1, one side of the closure defines the bearing area at a position relative to the push portion, and at least one mounting area is provided around the bearing area, which is fitted to the mounting portion of the body. The other side of the closure has the identification area relative to the relief portion. The fluid control valve as described in claim 1 has at least one color-coated mark on the identification area of ​​its closure. The fluid control valve as described in claim 1 has a stepped portion protruding in the identification area and at least one mark on the outer circumferential surface of the stepped portion. The preset identification position of the fluid control valve as described in claim 1 can be a position flush with or beyond the second side of the anti-leakage device. A refrigerant device comprising: a refrigerant mechanism having at least one refrigerant reservoir, at least one first conveyor and at least one second conveyor, the refrigerant reservoir being capable of supplying refrigerant, and the first conveyor being connected to the refrigerant reservoir to convey the refrigerant; and at least one fluid control valve as described in claim 1, wherein a third chamber of the valve is connected to the first conveyor and a second chamber is connected to the second conveyor to convey the refrigerant. A testing machine includes: a machine base; a feeding device: disposed on the machine base and equipped with at least one feeder for holding at least one electronic component to be tested; a receiving device: disposed on the machine base and equipped with at least one receiving device for holding at least one tested electronic component; a working device: disposed on the machine base and equipped with at least one working device and at least one temperature controller, the working device for performing preset operations on the electronic component, and the temperature controller for temperature control of the electronic component; at least one refrigerant device as described in claim 9: its second conveyor is connectable to at least one of the temperature controllers, and a fluid control valve is capable of controlling the second conveyor to supply or stop supplying refrigerant to the temperature controller; a transfer device: disposed on the machine base and equipped with at least one transfer device for transferring the electronic component; and a central control device for controlling and integrating the operation of the various devices to perform automated operation.

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