A visualization device for a vapor chamber with coexisting evaporation and condensation

Abstract

The present invention relates to the technical field of steam chamber visualization devices, and specifically provides a steam chamber visualization device with coexisting evaporation and condensation, which includes a heating module, a cooling module, and a visualization module. The visualization module includes a heat-insulating base, an evaporation plate, a transparent cover, and a condensation plate. Axial ends of the transparent cover are respectively used to connect with the evaporation plate and the condensation plate. The transparent cover, the evaporation plate, and the condensation plate enclose and form a steam chamber for injecting a working fluid liquid. Among them, the working fluid liquid flows into the steam chamber through a vacuum liquid injection hole. After starting the heating module, the working fluid liquid is heated by the heating module and evaporates. The cooling module provides condensation conditions for the steam. After the steam rises to the condensation plate, it condenses into droplets and flows back into the steam chamber to re-boil to form an evaporation-condensation cycle. Through the transparent cover, the evaporation and condensation processes in the steam chamber can be observed simultaneously, which is beneficial to expanding the observation range.

Description

Technical Field

[0001] The present invention relates to the technical field of vapor chamber visualization devices, and more particularly, to a vapor chamber visualization device with coexisting evaporation and condensation. Background Art

[0002] As an efficient passive enhanced heat transfer component, the vapor chamber has great application prospects in the fields of electronics, aerospace, military, nuclear power, etc. However, boiling and condensation phase change phenomena occur simultaneously inside it, and the heat and mass transfer mechanism is complex. Currently, most research predicts the working state of the vapor chamber through numerical simulation combined with the test method of the packaged vapor chamber.

[0003] Currently, most observations during the operation of the visualization observation device focus on the evaporation end or the condensation end of the vapor chamber, without considering the coexistence of evaporation and condensation. This makes the observation record results relatively single, the reference of test data incomplete, and the observable range and characteristics incomplete. Summary of the Invention

[0004] The present invention aims to solve the problem that most observations during the operation of the existing visualization observation device focus on the evaporation end or the condensation end of the vapor chamber, resulting in relatively single observation record results, incomplete observable range and characteristics.

[0005] To solve the above problems, the present invention proposes the following technical solutions:

[0006] A vapor chamber visualization device with coexisting evaporation and condensation includes a heating module, a cooling module, and a visualization module. The visualization module includes an adiabatic base, an evaporation plate, a transparent cover, and a condensation plate. Axial ends of the transparent cover are respectively used to connect with the evaporation plate and the condensation plate. The transparent cover, the evaporation plate, and the condensation plate enclose and form a vapor chamber for injecting a working fluid liquid. A vacuum injection hole is provided on the condensation plate, and the working fluid liquid is injected into the vapor chamber through the vacuum injection hole.

[0007] One end of the evaporation plate away from the transparent cover is used to connect with the adiabatic base; the heating module is arranged on the adiabatic base, and the heating module is used to connect with the evaporation plate through the adiabatic base.

[0008] The cooling module is arranged above the visualization module, and the cooling module is used to connect with the condensation plate.

[0009] The vapor chamber visualization device with coexisting evaporation and condensation provided by the present invention has the following beneficial effects compared with the prior art, but is not limited to:

[0010] The working fluid liquid flows into the steam chamber from the vacuum liquid injection hole. The heating module is started, and the working fluid liquid is heated by the heating module and evaporated. The cooling module provides the condensation condition for the steam. After the steam rises to the condensation plate, it condenses into liquid droplets and flows back into the steam chamber to re-boil, forming an evaporation-condensation cycle. Through the transparent cover, the evaporation and condensation processes in the steam chamber can be observed simultaneously. Among them, the vacuum liquid injection hole is used for evacuating the steam chamber and filling the working fluid liquid. The heating module provides heat flow for the evaporation and boiling phase change of the working fluid liquid in the steam chamber. The cooling module provides convective cooling for the condensation of the working fluid liquid in the steam chamber. The heating module is connected to the evaporation plate through an adiabatic base, which is convenient for the heating module to heat the evaporation plate. The condensation module is connected to the condensation plate. This structure is convenient for the coexistence of evaporation and condensation of the working fluid liquid in the steam chamber. The transparent cover is beneficial to observing and recording the coexistence of evaporation and condensation. It can be observed circumferentially around the transparent cover located on the side wall, which is beneficial to expanding the observation range and ensuring the integrity of the observation characteristics and recorded data.

[0011] Preferably, the visualization device for the steam chamber with coexisting evaporation and condensation further includes an angle rotation module. The angle rotation module includes a limit support, an angle operating member, and a rotation transition disk. The angle operating member is arranged on the limit support. One side of the rotation transition disk is connected to the angle operating member, and the angle operating member is used to control the rotation of the rotation transition disk.

[0012] The other side of the rotation transition disk is used to be connected to the visualization module to drive the visualization module to rotate around the axis of the rotation transition disk.

[0013] Preferably, the angle operating member includes a graduated disk, a fixing frame, and a rotating shaft. The fixing frame is used to be fixedly connected to the limit support. One side of the fixing frame is used to install the graduated disk, and the side wall of the graduated disk is rotationally connected to the rotating shaft through a bearing.

[0014] A through hole is provided on the fixing frame. The rotating shaft passes through the through hole, and one end of the rotating shaft located on one side of the fixing frame and away from the graduated disk is connected to the rotation transition disk.

[0015] Preferably, the cooling module includes a cooling copper cavity. The cooling copper cavity is a trough-shaped structure with an open upper end. The inner cavity of the cooling copper cavity is used to hold the coolant.

[0016] The inner wall of the cooling copper cavity is provided with a liquid injection channel. The liquid injection channel is provided with a first vacuum liquid injection port at one end of the side wall of the cooling copper cavity, and a second vacuum liquid injection port at one end of the bottom of the cooling copper cavity. The second vacuum liquid injection port is aligned with the vacuum liquid injection hole on the condensation plate. The liquid injection channel is connected to the vacuum liquid injection hole to communicate with the steam cavity to form a vacuum liquid injection path.

[0017] Preferably, the cooling module further includes turbulator fins, a constant temperature water tank, a first cold water pipe, a second cold water pipe, and a variable frequency pump. A plurality of the turbulator fins are arranged in the inner cavity of the cooling copper cavity;

[0018] The cooling copper cavity is provided with a liquid inlet hole and a liquid outlet hole. The water outlet of the constant temperature water tank is connected to the liquid inlet hole through the first cold water pipe, and the water inlet of the constant temperature water tank is connected to the liquid outlet hole through the second cold water pipe. The variable frequency pump is arranged on the first cold water pipe.

[0019] Preferably, the steam cavity visualization device with coexisting evaporation and condensation further includes a pressing module and a mounting rack. The pressing module includes a screw press rod and a pressing seat. The pressing seat is fixedly arranged at the upper end of the cooling copper cavity through bolts and covers the opening of the inner cavity of the cooling copper cavity. The upper end of the screw press rod is used for threaded connection to the mounting rack, and the lower end of the screw press rod is used for connection to the pressing seat.

[0020] Preferably, the heating module includes a heating rod, indium foil, and a heat insulation cover. A through hole is provided in the middle of the adiabatic base. The heating rod is used for being inserted into the through hole. The indium foil is filled between the lower end surface of the evaporation plate and the upper end surface of the heating rod; the heat insulation cover covers the outside of the heating rod.

[0021] Preferably, the steam cavity visualization device with coexisting evaporation and condensation further includes a vacuum liquid injection module. The vacuum liquid injection module includes an air extraction pipeline, a main extraction valve, an ionization gauge, a molecular pump, a resistance gauge, and a dry pump. The dry pump and the molecular pump are sequentially connected through the air extraction pipeline. The tail end of the air extraction pipeline is used for connection to the second vacuum liquid injection port. The resistance gauge, the ionization gauge, and the main extraction valve are all arranged on the air extraction pipeline.

[0022] Preferably, the steam cavity visualization device with coexisting evaporation and condensation further includes a data acquisition module. The data acquisition module includes a thermocouple and a temperature acquisition instrument. The thermocouples are arranged on the lower end surface of the cooling copper cavity and inside the adiabatic base, and the thermocouples are used for connection to the temperature acquisition instrument.

[0023] Preferably, the data acquisition module further includes a computer, a light source, a bracket, and a camera. The computer is used to connect to the camera. The light source and the camera are mounted on one side of the visualization module through the bracket, so that the camera is used to collect images when the visualization module is working. Description of the Drawings

[0024] Figure 1 It is a schematic diagram of the overall structure of the vapor chamber visualization device with coexisting evaporation and condensation according to an embodiment of the present invention;

[0025] Figure 2 It is a schematic diagram of the overall structure of the angle rotation module, visualization module, cooling copper cavity, heating module, and pressing module according to an embodiment of the present invention;

[0026] Figure 3 It is a schematic diagram of the exploded structure of the visualization module according to an embodiment of the present invention;

[0027] Figure 4 It is a schematic diagram of the structure of the cooling copper cavity according to an embodiment of the present invention;

[0028] Figure 5 It is a schematic diagram of the bottom surface structure of the cooling copper cavity according to an embodiment of the present invention;

[0029] Figure 6 It is a schematic diagram of the cross-sectional structure of the cooling copper cavity according to an embodiment of the present invention;

[0030] Figure 7 It is a schematic diagram of the overall cross-sectional structure of the visualization module, cooling copper cavity, heating module, and pressing module according to an embodiment of the present invention.

[0031] Description of the Reference Numerals:

[0032] 1 Heating module, 11 Heating rod, 12 Heat preservation cover, 2 Cooling module, 20 Cooling copper cavity, 200 Liquid injection channel, 201 Liquid inlet hole, 202 Liquid outlet hole, 203 Limiting hole, 204 Thermocouple limiting groove, 21 First vacuum liquid injection port, 22 Second vacuum liquid injection port, 23 Turbulence fins, 24 Constant temperature water tank, 25 First cold water pipe, 26 Second cold water pipe, 27 Variable frequency pump, 28 Flowmeter, 29 Valve, 3 Visualization module, 30 Steam cavity, 31 Heat insulation base, 32 Evaporation plate, 33 Transparent cover, 34 Condensation plate, 35 Vacuum liquid injection hole, 36 Sealing ring, 37 Heat insulation ring, 38 Thermocouple hole, 4 Angle rotation module, 41 Limiting support, 42 Angle operating part, 421 Index plate, 422 Fixed frame, 43 Rotation transition plate, 5 Pressing module, 51 Screw pressing rod, 52 Pressing seat, 53 Turntable, 6 Mounting frame, 61 First fixing plate, 62 Second fixing plate, 63 Third fixing plate, 64 Fixed seat, 65 Column, 66 Nut, 7 Vacuum liquid injection module, 71 Air extraction pipeline, 72 Main extraction valve, 73 Ionization gauge, 74 Molecular pump, 75 Resistance gauge, 76 Dry pump, 8 Data acquisition module, 81 Bracket, 82 Temperature acquisition instrument, 83 Computer, 84 Light source, 85 Camera, 86 Thermocouple, 9 DC power supply. Specific implementation mode

[0033] The following further describes the implementation mode of the present application in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0034] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0035] It should be noted that in the coordinate system XYZ provided in this article, the positive direction of the X-axis represents the right side, the reverse direction of the X-axis represents the left side, the positive direction of the Y-axis represents the front, the reverse direction of the Y-axis represents the rear, the positive direction of the Z-axis represents the upper side, and the reverse direction of the Z-axis represents the lower side; the meanings represented by the Z-axis, X-axis, and Y-axis are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0036] Refer to Figures 1-7, a vapor chamber visualization device with coexisting evaporation and condensation provided by the present invention includes a heating module 1, a cooling module 2, and a visualization module 3. The visualization module 3 includes a heat-insulating base 31, an evaporation plate 32, a transparent cover 33, and a condensation plate 34. Axial ends of the transparent cover 33 are respectively used to connect with the evaporation plate 32 and the condensation plate 34. The transparent cover 33, the evaporation plate 32, and the condensation plate 34 enclose to form a vapor chamber 30 for injecting a working fluid liquid. A vacuum injection hole 35 is provided on the condensation plate 34, and the working fluid liquid is injected into the vapor chamber 30 through the vacuum injection hole 35;

[0037] Refer to Figures 1-2 , one end of the evaporation plate 32 away from the transparent cover 33 is used to connect with the heat-insulating base 31; the heating module 1 is arranged on the heat-insulating base 31, and the heating module 1 is used to connect with the evaporation plate 32 through the heat-insulating base 31;

[0038] The cooling module 2 is arranged above the visualization module 3, and the cooling module 2 is used to connect with the condensation plate 34.

[0039] Refer to Figure 3 , specifically, the visualization module 3 further includes a sealing ring 36 and a heat-insulating ring 37. A sealing ring 36 is arranged between the evaporation plate 32 and the transparent cover 33, and a sealing ring 36 is also arranged between the condensation plate 34 and the transparent cover 33. Annular channels are provided on both the evaporation plate 32 and the condensation plate 34 for placing the sealing ring 36 to seal the cavity. The arrangement of the sealing ring 36 is used to strengthen the sealing performance of the vapor chamber 30.

[0040] The heat-insulating ring 37 is fixedly arranged at the upper end of the condensation plate 34 and is located between the cooling module 2 and the condensation plate 34, and is used to limit the transparent cover 33 and has a certain heat-insulating effect to keep the condensation plate 34 warm and insulated.

[0041] Among them, the transparent cover 33 is a glass ring, and the transparent cover 33 can withstand a steam pressure of 5 Mpa, can effectively simulate the high steam pressure conditions under high heat flux density, and can visually study the phase change behaviors such as bubbles and droplets during the evaporation and condensation processes in the cavity of the vapor chamber 30.

[0042] In this embodiment, the working fluid liquid flows into the steam chamber 30 from the vacuum liquid injection hole 35. The heating module 1 is started, and the working fluid liquid is heated by the heating module 1 and evaporated. The cooling module 2 provides a condensation condition for the steam. After the steam rises to the condensation plate 34, it condenses into droplets and flows back into the steam chamber 30 to re-boil, forming an evaporation-condensation cycle. Through the transparent cover 33, the evaporation and condensation processes in the steam chamber 30 can be observed simultaneously. Among them, the vacuum liquid injection hole 35 is used for evacuating the steam chamber 30 and filling the working fluid liquid. The heating module 1 provides a heat flow for the evaporation and boiling phase change of the working fluid liquid in the steam chamber 30. The cooling module 2 provides convective cooling for the condensation of the working fluid liquid in the steam chamber 30. The heating module 1 is connected to the evaporation plate 32 through the adiabatic base 31, which is convenient for the heating module 1 to heat the evaporation plate 32. The condensation module is connected to the condensation plate 34. This structure facilitates the coexistence of evaporation and condensation of the working fluid liquid in the steam chamber 30. Through the transparent cover 33, it is beneficial to observe and record the coexistence of evaporation and condensation. The transparent cover 33 located on the side wall can be observed circumferentially for one week, which is beneficial to expanding the observation range and ensuring the integrity of the observation features and recorded data.

[0043] Refer to Figures 1-2 , preferably, the steam chamber visualization device with coexisting evaporation and condensation further includes an angle rotation module 4. The angle rotation module 4 includes a limit support 41, an angle operating member 42, and a rotation transition disk 43. The angle operating member 42 is arranged on the limit support 41. One side of the rotation transition disk 43 is connected to the angle operating member 42. The angle operating member 42 is used to control the rotation of the rotation transition disk 43.

[0044] The other side of the rotation transition disk 43 is used to be connected to the visualization module 3 to drive the visualization module 3 to rotate around the axis of the rotation transition disk 43.

[0045] In this embodiment, the limit support 41 has a supporting function. The visualization module 3 is fixed on the rotation transition disk 43. The angle operating member 42 is used to control the rotation of the rotation transition disk 43 to drive the visualization module 3 to rotate, thereby realizing the inclination rotation of the visualization module 3 within a 360° range, and providing visual observation of the steam chamber 30 under the action of the anti-gravity range.

[0046] Refer to Figure 2, Preferably, the angle operating member 42 includes a dividing plate 421, a fixing frame 422 and a rotating shaft. The fixing frame 422 is used for fixedly connecting with the limit support 41. One side of the fixing frame 422 is used for installing the dividing plate 421. The side wall of the dividing plate 421 is rotationally connected to the rotating shaft through a bearing;

[0047] A through hole is provided on the fixing frame 422. The rotating shaft passes through the through hole, and one end of the rotating shaft located on one side of the fixing frame 422 and away from the dividing plate 421 is connected to the rotating transition disk 43.

[0048] Specifically, the angle rotation module 4 further includes a driving rotating gear, a driven rotating gear, an operating rod and an operating disk. A rotating hole is provided on the side wall of the fixing frame 422. The operating rod is rotationally connected to the rotating hole through a bearing. One end of the operating rod is a driving end, and the other end is a connecting end. The connecting end is located outside the fixing frame 422 and is connected to the operating disk; the driving end is located inside the fixing frame 422 and close to the through hole. The driving rotating gear is fixedly arranged on the driving end, and the driven rotating gear is fixedly arranged on the rotating shaft. The driven rotating gear is used for meshing with the driving rotating gear.

[0049] In this embodiment, the arrangement of the dividing plate 421, the fixing frame 422 and the rotating shaft enables the rotating transition disk 43 to rotate. By rotating the operating disk, the operating rod and the driving rotating gear are driven to rotate, and then the driven rotating gear and the rotating shaft are driven to rotate, so as to drive the rotating transition disk 43 and the visualization module 3 to rotate. In this structure, the rotating angle of the rotating transition disk 43 is controlled by the angle operating member 42, which is beneficial to simulating the working conditions of the steam cavity at different inclination angles.

[0050] Refer to Figure 4 , Preferably, the cooling module 2 includes a cooling copper cavity 20. The cooling copper cavity 20 is a trough-shaped structure with an open upper end. The inner cavity of the cooling copper cavity 20 is used for containing a coolant;

[0051] Refer to Figure 6 , A liquid injection channel 200 is provided on the inner wall of the cooling copper cavity 20. A first vacuum liquid injection port 21 is provided at one end of the liquid injection channel 200 located on the side wall of the cooling copper cavity 20. A second vacuum liquid injection port 22 is provided at one end of the liquid injection channel 200 located at the bottom of the cooling copper cavity 20. The second vacuum liquid injection port 22 is aligned with the vacuum liquid injection hole 35 on the condensation plate 34. The liquid injection channel 200 is connected to the vacuum liquid injection hole 35 to form a vacuum liquid injection passage communicating with the steam cavity 30.

[0052] In this embodiment, the liquid injection channel 200, the first vacuum liquid injection port 21, the second vacuum liquid injection port 22, and the vacuum liquid injection hole 35 are used for evacuating the steam chamber 30 and filling the working fluid liquid. After the filling of the working fluid liquid is completed, the heating module 1 is started first. The working fluid liquid in the steam chamber 30 is heated by the heating module 1 and evaporated. The coolant passes through the cooling copper cavity 20 to provide a condensation condition for the steam. The steam rises to the condensation plate 34 and condenses into droplets, which then flow back to the steam chamber 30 to be evaporated or boiled again to form an evaporation-condensation cycle. The evaporation and condensation processes inside the cavity can be observed simultaneously through the transparent cover 33.

[0053] Refer to Figure 1 , Figures 4-6 , preferably, the cooling module 2 further includes flow disturbance fins 23, a constant temperature water tank 24, a first cold water pipe 25, a second cold water pipe 26, and a variable frequency pump 27. A plurality of the flow disturbance fins 23 are arranged in the inner cavity of the cooling copper cavity 20;

[0054] The cooling copper cavity 20 is provided with a liquid inlet hole 201 and a liquid outlet hole 202. The water outlet of the constant temperature water tank 24 is connected to the liquid inlet hole 201 through the first cold water pipe 25, and the water inlet of the constant temperature water tank 24 is connected to the liquid outlet hole 202 through the second cold water pipe 26. The variable frequency pump 27 is arranged on the first cold water pipe 25.

[0055] Specifically, the cooling module 2 further includes a flow meter 28 and a valve 29. Both the flow meter 28 and the valve 29 are arranged on the first cold water pipe 25. The flow meter 28 is used to monitor the water supply situation of the constant temperature water tank 24, and the valve 29 is used to control the water supply.

[0056] In this embodiment, the liquid inlet hole 201 is used to connect the first cold water pipe 25 with the inner cavity of the cooling copper cavity 20, and the liquid outlet hole 202 is used to connect the second cold water pipe 26 with the inner cavity of the cooling copper cavity 20. A circulation path is formed by connecting the constant temperature water tank 24, the first cold water pipe 25, the cooling copper cavity 20, and the second cold water pipe 26. The constant temperature water tank 24 and the first cold water pipe 25 cooperate to provide coolant for the cooling copper cavity 20. The flow disturbance fins 23 are beneficial to making the convective heat transfer in the cooling copper cavity 20 more sufficient.

[0057] Refer to Figure 7 , preferably, the heating module 1 includes a heating rod 11, indium foil, and a heat insulation cover 12. A through hole is provided in the middle of the adiabatic base 31. The heating rod 11 is used to be inserted into the through hole. The indium foil is filled between the lower end surface of the evaporation plate 32 and the upper end surface of the heating rod 11; the heat insulation cover 12 covers the outside of the heating rod 11.

[0058] Specifically, the adiabatic base 31, the evaporation plate 32, the transparent cover 33, and the condensation plate 34 are coaxially arranged.

[0059] In this embodiment, the setting of the heating rod 11 can provide a stable heat flow for the working fluid liquid in the cavity to reach the evaporation or boiling state. The setting of the indium foil helps to reduce the contact thermal resistance between the heating rod 11 and the evaporation plate 32. The heating rod 11 provides heating power through the DC power supply 9, and the DC power supply 9 can adjust and output a stable programmed current.

[0060] Refer to Figure 1 , preferably, the steam chamber visualization device with coexisting evaporation and condensation further includes a vacuum liquid injection module 7. The vacuum liquid injection module 7 includes an air extraction pipeline 71, a main extraction valve 72, an ionization gauge 73, a molecular pump 74, a resistance gauge 75, and a dry pump 76. The dry pump 76 and the molecular pump 74 are sequentially connected through the air extraction pipeline 71. The tail end of the air extraction pipeline 71 is used to connect to the second vacuum liquid injection port 22. The resistance gauge 75, the ionization gauge 73, and the main extraction valve 72 are all arranged on the air extraction pipeline 71.

[0061] In this embodiment, when performing the vacuum pumping operation, first open the main extraction valve 72, ensure that the valve 29 of the air extraction pipeline 71 is in the correct state, start the dry pump 76, open the resistance gauge 75. After the vacuum degree is lower than 5 Pa, open the molecular pump 74 to further pump vacuum. After the vacuum degree reaches the required value and stabilizes, open the ionization gauge 73, and then the working fluid liquid can be filled into the cavity of the steam chamber 30.

[0062] Refer to Figures 1-2 , preferably, the steam chamber visualization device with coexisting evaporation and condensation further includes a pressing module 5 and a mounting bracket 6. The pressing module 5 includes a screw press rod 51 and a pressing seat 52. The pressing seat 52 is fixedly arranged at the upper end of the cooling copper cavity 20 through bolts and covers the opening of the inner cavity of the cooling copper cavity 20. The upper end of the screw press rod 51 is used for threaded connection to the mounting bracket 6, and the lower end of the screw press rod 51 is used to connect to the pressing seat 52.

[0063] Specifically, the mounting bracket 6 includes four columns 65, threads are provided on the columns 65, and a fixing base 64 and three fixing plates are fixedly arranged on the four columns 65 from bottom to top through the nuts 66. The three fixing plates are, from bottom to top, a first fixing plate 61, a second fixing plate 62, and a third fixing plate 63. The first fixing plate 61 is used to mount the heating module 1. A first hole is provided in the middle of the first fixing plate 61. The electric heating rod is connected to the DC power supply 9 through an electric wire, and the first hole is used for the electric wire to pass through. The second fixing plate 62 is used to mount the visualization module 3 and the cooling copper cavity 20 of the cooling module 2. A second hole is provided in the middle of the second fixing plate 62. The lower end of the heat insulation base 31 is inserted into the second hole for fixation. The cooling copper cavity 20 is fixed to the heat insulation ring 37 by bolts, and a limiting hole 203 matching the column 65 is provided through the cooling copper cavity 20. The limiting hole 203 is used for the column 65 to pass through. Threaded holes are provided on the third fixing plate 63, threads are provided on the outer wall of the screw press rod 51, and the screw press rod 51 is threadedly connected to the third fixing plate 63 through the threaded holes. One end of the screw press rod 51 away from the pressing seat 52 is connected with a turntable 53. By rotating the turntable 53, the screw press rod 51 is driven to rotate to press the pressing seat 52 and the cooling copper cavity 20.

[0064] In this embodiment, through the mounting bracket 6, the lower end of the cooling copper cavity 20 abuts against the upper end of the condensation plate 34, and the heating module 1, the visualization module 3, the cooling copper cavity 20, and the pressing module 5 are connected into one body. Among them, the screw press rod 51 provides sufficient pressing force for the visualization module 3 to form a good sealing environment, and at the same time can reduce the contact thermal resistance between the evaporation plate 32, the condensation plate 34 and the adjacent heating module 1. In addition, the screw press rod 51 can also simulate the working state of the steam cavity 30 in actual application, that is, the load-bearing performance of the steam cavity 30 will also be verified. In this way, the measured data can more truly restore the comprehensive performance of the steam cavity 30.

[0065] Refer to Figure 1 , preferably, the steam cavity visualization device with coexisting evaporation and condensation further includes a data acquisition module 8. The data acquisition module 8 includes a thermocouple 86 and a temperature acquisition instrument 82. The thermocouple 86 is provided on both the lower end face of the cooling copper cavity 20 and the inside of the heat insulation base 31. The thermocouple 86 is used to be connected to the temperature acquisition instrument 82.

[0066] Specifically, three thermocouple holes 38 are provided on the side wall of the adiabatic base 31, and the thermocouple holes 38 are used to place the thermocouple 86; five thermocouple limiting grooves 204 are provided on the lower end surface of the cooling copper cavity 20, and the thermocouple limiting grooves 204 are used to install the thermocouple 86. The vertices of the five thermocouple limiting grooves 204 are equally spaced, facilitating the measurement of the temperature of the condensation plate 34 to analyze its uniformity.

[0067] In this embodiment, the temperature of the thermocouple 86 is recorded and stored in real time by the temperature acquisition instrument 82.

[0068] Referring to Figure 1 , preferably, the data acquisition module 8 further includes a computer 83, a light source 84, a bracket 81 and a camera 85. The computer 83 is used to connect to the camera 85. The light source 84 and the camera 85 are mounted on one side of the visualization module 3 through the bracket 81, so that the camera 85 is used to collect the images when the visualization module 3 is working.

[0069] In this embodiment, the light source 84 provides sufficient brightness for the visualization module 3, and the camera 85 collects the images obtained by the visualization module 3 into the computer 83.

[0070] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will all fall within the protection scope of the present invention.

Claims

1. A visualization device for a vapor chamber with coexisting evaporation and condensation, characterized in that, it includes a heating module (1), a cooling module (2), a visualization module (3) and an angle rotation module (4). The visualization module (3) includes a heat-insulating base (31), an evaporation plate (32), a transparent cover (33) and a condensation plate (34). Axial ends of the transparent cover (33) are respectively used for connecting with the evaporation plate (32) and the condensation plate (34). The transparent cover (33), the evaporation plate (32) and the condensation plate (34) enclose a vapor chamber (30) for injecting a working fluid liquid. A vacuum liquid injection hole (35) is arranged on the condensation plate (34), and the working fluid liquid is injected into the vapor chamber (30) through the vacuum liquid injection hole (35); One end of the evaporation plate (32) away from the transparent cover (33) is used for connecting with the heat-insulating base (31); the heating module (1) is arranged on the heat-insulating base (31), and the heating module (1) is used for connecting with the evaporation plate (32) through the heat-insulating base (31); The cooling module (2) is arranged above the visualization module (3), and the cooling module (2) is used for connecting with the condensation plate (34); The angle rotation module (4) includes a limit support (41), an angle operating member (42) and a rotation transition disk (43). The angle operating member (42) is arranged on the limit support (41). One side of the rotation transition disk (43) is connected with the angle operating member (42), and the angle operating member (42) is used for controlling the rotation of the rotation transition disk (43); The other side of the rotation transition disk (43) is used for connecting with the visualization module (3) to drive the visualization module (3) to rotate around the axis of the rotation transition disk (43).

2. The visualization device for a vapor chamber with coexisting evaporation and condensation according to claim 1, characterized in that, the angle operating member (42) includes a graduated disk (421), a fixed frame (422) and a rotating shaft. The fixed frame (422) is used for fixedly connecting with the limit support (41). One side of the fixed frame (422) is used for installing the graduated disk (421), and the side wall of the graduated disk (421) is rotationally connected with the rotating shaft through a bearing; A through hole is arranged on the fixed frame (422). The rotating shaft passes through the through hole, and one end of the rotating shaft located on one side of the fixed frame (422) and away from the graduated disk (421) is connected with the rotation transition disk (43).

3. The visualization device for a vapor chamber with coexisting evaporation and condensation according to claim 1, characterized in that, the cooling module (2) includes a cooling copper cavity (20). The cooling copper cavity (20) is a trough-shaped structure with an open upper end. The inner cavity of the cooling copper cavity (20) is used for containing a coolant; The inner wall of the cooling copper cavity (20) is provided with a liquid injection channel (200). The liquid injection channel (200) is provided with a first vacuum liquid injection port (21) at one end of the side wall of the cooling copper cavity (20), and the liquid injection channel (200) is provided with a second vacuum liquid injection port (22) at one end of the bottom of the cooling copper cavity (20). The second vacuum liquid injection port (22) is aligned with the vacuum liquid injection hole (35) on the condensation plate (34). The liquid injection channel (200) is connected to the vacuum liquid injection hole (35) to communicate with the steam cavity (30) to form a vacuum liquid injection path.

4. The steam cavity visualization device with coexisting evaporation and condensation according to claim 3, characterized in that the cooling module (2) further includes turbulator fins (23), a constant temperature water tank (24), a first cold water pipe (25), a second cold water pipe (26) and a variable frequency pump (27). A plurality of the turbulator fins (23) are arranged in the inner cavity of the cooling copper cavity (20); the cooling copper cavity (20) is provided with a liquid inlet hole (201) and a liquid outlet hole (202). The water outlet of the constant temperature water tank (24) is connected to the liquid inlet hole (201) through the first cold water pipe (25), and the water inlet of the constant temperature water tank (24) is connected to the liquid outlet hole (202) through the second cold water pipe (26). The variable frequency pump (27) is arranged on the first cold water pipe (25).

5. The steam cavity visualization device with coexisting evaporation and condensation according to claim 3, characterized in that it further includes a pressing module (5) and a mounting frame (6). The pressing module (5) includes a screw press rod (51) and a pressing seat (52). The pressing seat (52) is fixedly arranged at the upper end of the cooling copper cavity (20) through bolts and covers the opening of the inner cavity of the cooling copper cavity (20). The upper end of the screw press rod (51) is used for threaded connection to the mounting frame (6), and the lower end of the screw press rod (51) is used for connection to the pressing seat (52).

6. The steam cavity visualization device with coexisting evaporation and condensation according to claim 1, characterized in that the heating module (1) includes a heating rod (11), indium foil and a heat preservation cover (12). A through hole is arranged in the middle of the heat insulation base (31). The heating rod (11) is used for being inserted into the through hole. The indium foil is filled between the lower end surface of the evaporation plate (32) and the upper end surface of the heating rod (11); the heat preservation cover (12) covers the outside of the heating rod (11).

7. The steam cavity visualization device with coexisting evaporation and condensation according to claim 3, characterized in that It further includes a vacuum liquid injection module (7), and the vacuum liquid injection module (7) includes an air extraction pipeline (71), a main extraction valve (72), an ionization gauge (73), a molecular pump (74), a resistance gauge (75) and a dry pump (76). The dry pump (76) and the molecular pump (74) are sequentially connected through the air extraction pipeline (71). The tail end of the air extraction pipeline (71) is used to be connected to the second vacuum liquid injection port (22). The resistance gauge (75), the ionization gauge (73) and the main extraction valve (72) are all arranged on the air extraction pipeline (71).

8. The vapor chamber visualization device with coexisting evaporation and condensation according to claim 3, characterized in that, it further includes a data acquisition module (8), and the data acquisition module (8) includes a thermocouple (86) and a temperature acquisition instrument (82). The thermocouple (86) is arranged on the lower end surface of the cooling copper chamber (20) and inside the adiabatic base (31). The thermocouple (86) is used to be connected to the temperature acquisition instrument (82).

9. The vapor chamber visualization device with coexisting evaporation and condensation according to claim 8, characterized in that, the data acquisition module (8) further includes a computer (83), a light source (84), a bracket (81) and a camera (85). The computer (83) is used to be connected to the camera (85). The light source (84) and the camera (85) are mounted on one side of the visualization module (3) through the bracket (81), so that the camera (85) is used to acquire the image when the visualization module (3) is working.

Images