A ceramic ferrite composite substrate detection mechanism

Abstract

This invention proposes a testing mechanism for ceramic ferrite composite substrates, comprising a main body with a sealed chamber installed in the center. The sealed chamber houses a heating mechanism and a cooling mechanism for adjusting the internal temperature. The heating mechanism is horizontally oriented, while the cooling mechanism is vertically oriented. An insulated chamber is installed inside the sealed chamber, containing a vision camera. The interior of the insulated chamber and the interior of the cooling mechanism are connected via a non-powered, controllable component, including a connecting pipe linking the insulated chamber and the cooling mechanism. This invention utilizes a vortex tube to provide cold air and a combination of a fan and an electric heating element to provide hot air. This allows for separate cold and hot air testing as needed, with a wide temperature adjustment range. This enables testing under high and low temperature cycling conditions, as well as high and low temperature cycling shock conditions, resulting in broader and more comprehensive data collection on the stability of the composite substrate, thus allowing for better assessment of the substrate's quality based on the test data.

Description

Technical Field

[0001] This invention relates to the field of substrate testing, and more particularly to a testing mechanism for ceramic ferrite composite substrates. Background Technology

[0002] Ceramic ferrite composite substrates (usually referring to gyromagnetic ferrite / dielectric ceramic heterocomposite substrates) are functional multilayer composite materials used in high-frequency microwave devices. They combine gyromagnetic ferrite (providing magnetism and gyromagnetic effects) with dielectric ceramics (providing high dielectric constant and low loss), and are primarily used in circulators, isolators, phase shifters, and other devices in 5G / 6G communications to achieve miniaturization, high stability, and low signal loss. To ensure product quality, ceramic ferrite composite substrates undergo various tests during the production process, including microstructure, magnetic properties, dielectric properties, mechanical properties, thermal properties, reliability, and packaging testing.

[0003] Reliability testing includes tests for high and low temperature cycling, thermal shock, and high frequency vibration. High and low temperature cycling and thermal shock testing are generally integrated into one machine. Both thermal shock and cycling use heating to reach the required temperature. However, the temperature range and heating time requirements for thermal shock are different from those for cycling. Specifically, heating needs to be faster, the upper limit of temperature is higher, and the temperature fluctuation range is smaller.

[0004] The CN 119164451 B publication describes a testing device for manganese-zinc ferrite cores. This device utilizes a combination of a fan and an external unit to blow air into a protective enclosure. It provides a high-temperature environment when blowing hot air and a low-temperature environment when blowing cold air. When used with a CCD camera, it effectively solves the technical problems raised. However, upon reviewing the entire publication, this applicant did not find any specific protection measures for the CCD camera. During high-temperature testing, the CCD camera is in a high-temperature environment, which obviously reduces its operational stability and lifespan. While adding a fan directly to the CCD camera for heat dissipation can ensure its operation, this component stacking method directly increases equipment cost and the complexity of the equipment's control logic, leading to increased power consumption and other parameters. Furthermore, it does not link to low-temperature environment testing, failing to utilize residual heat during low-temperature testing. Summary of the Invention

[0005] The technical problem to be solved by this invention is to overcome the defects of the existing technology. To solve the above technical problem, the technical solution adopted by this invention is: A ceramic ferrite composite substrate testing mechanism includes a body, in which a sealed box is installed in the middle. A heating mechanism and a cooling mechanism for adjusting the internal temperature of the sealed box are installed on the sealed box. The heating mechanism is arranged horizontally, and the cooling mechanism is arranged vertically. An insulation box is installed inside the sealed box, and a vision camera is installed inside the insulation box. The interior of the insulation box and the interior of the cooling mechanism are connected by a non-powered controllable component, which includes a connecting pipe connecting the insulation box and the cooling mechanism.

[0006] The heating mechanism includes an electric heating tube. Through openings are provided on the left and right sides of the sealed box. The electric heating tube is installed on the left through opening of the sealed box, and a fan is installed on the right through opening of the sealed box. A circulation pipe is installed between the fan and the left through opening of the sealed box.

[0007] The refrigeration mechanism includes a vortex tube. A fixed plate is installed inside the machine body above the sealed box. The vortex tube is installed in the middle of the fixed plate. The bottom cold air outlet of the vortex tube extends through the top of the sealed box to the inside of the sealed box. The top air inlet of the vortex tube is connected to an air inlet pipe. The air inlet pipe is connected to the output end of the air pressure pump inside the bottom of the machine body. A ventilation pipe is installed on the top of the sealed box.

[0008] The connecting pipe includes a connecting pipe 1 and a connecting pipe 2 installed on the rear side of the insulation box. The top ends of the connecting pipe 1 and the connecting pipe 2 are fixed to the ventilation pipe. The connecting pipe 1, the connecting pipe 2 and the ventilation pipe are interconnected. A guide slope is fixed inside the ventilation pipe between the connecting pipe 1 and the connecting pipe 2.

[0009] The insulated box has a double-layered glass panel installed on the front and a double-layered heat-insulating back panel installed on the rear. Insulation cotton is installed inside the insulated box between the double-layered heat-insulating back panel and the double-layered glass panel. A perforated box is installed inside the insulation cotton. The perforated box is four-sided and has open holes inside and out. A vision camera is installed inside the perforated box. Connecting pipe one and connecting pipe two are inserted at the upper and lower ends of the double-layered heat-insulating back panel. The perforated box, connecting pipe one, connecting pipe two and ventilation pipe are interconnected.

[0010] The fixed plate is equipped with a movable plate below it, and a flange plate is fixed on the vortex tube above the movable plate. The flange plate is fixed to the movable plate. An electric cylinder is installed on the fixed plate on the left side of the vortex tube. The bottom output end of the electric cylinder is fixed to the movable plate. Positioning rods are installed at the four corners of the top of the movable plate. The positioning rods pass through the four corners of the fixed plate to form a sliding plug-in connection.

[0011] The sealed box contains a testing platform installed at the bottom center, a substrate placement platform installed at the top of the testing platform, a positioning groove pre-set at the top center of the substrate placement platform, a composite substrate body placed in the positioning groove, copper sheets embedded in the substrate placement platforms on the left and right sides of the positioning groove, and a temperature sensor 1 embedded in the center of the substrate placement platform, with the detection end of the temperature sensor 1 in contact with the bottom surface of the composite substrate body.

[0012] Temperature sensor 2 is installed in the middle of the rear side inside the enclosed box. A heat-conducting block is installed at the bottom of the vortex tube. A threaded sleeve is fixed on the top of the heat-conducting block. Multiple through holes with equal spacing are opened on the outside of the heat-conducting block. The through holes are connected to the inside of the threaded sleeve. The cold air outlet at the bottom of the vortex tube is threadedly connected to the threaded sleeve. A pressure sensor is threadedly connected to the heat-conducting block on the outside of the threaded sleeve.

[0013] The hot air outlet of the vortex tube is connected to a hot air exhaust pipe. A first connection port is opened in the middle of the top of the sealed box, and a second connection port is opened on the top of the sealed box behind the first connection port. The vortex tube extends through the first connection port into the sealed box, and the ventilation pipe is installed with the second connection port.

[0014] The unit is equipped with a mixing chamber inside the rear of the sealed box. A hot air exhaust pipe extends into the mixing chamber, and a ventilation pipe is connected to the interior of the mixing chamber. A baffle valve is installed on the ventilation pipe at the front of the mixing chamber, and an air outlet connected to the mixing chamber is pre-set at the rear of the unit.

[0015] Compared with the prior art, the beneficial effects of the present invention include: 1. In this invention, two connecting pipes are provided to connect the heat insulation box containing the vision camera to the ventilation pipe of the refrigeration mechanism. During refrigeration, excess cold air inside the sealed box can enter the heat insulation box through the connecting pipes. While the heat insulation box blocks a certain amount of heat inside the sealed box through its own material, the internal cold air takes over the heat blocking, thereby reducing the rate and magnitude of temperature rise inside the heat insulation box. This provides a relatively stable operating temperature for the internal vision camera, thus ensuring its stable and reliable use.

[0016] 2. This invention uses a vortex tube to provide cold air and a combination of a fan and an electric heating tube to provide hot air. Cold and hot tests can be performed separately as needed, and the temperature is highly adjustable. This allows for testing under high and low temperature cycling conditions, as well as testing under high and low temperature cycling shock conditions. This results in a wider and more comprehensive collection of stability test data for the composite substrate, thus enabling better judgment of the quality of the composite substrate based on the test data.

[0017] 3. The present invention uses a vortex tube to provide cold air, which only requires continuous input of compressed air. It does not require a complex refrigerant refrigeration system, which simplifies the structure and reduces equipment costs. Moreover, it does not require the addition of refrigerant, making subsequent maintenance convenient and simple.

[0018] 4. In this invention, an electric cylinder is used to move the vortex tube up and down, thereby bringing it closer to or away from the composite substrate. With the use of a heat-conducting block, the direct impact of cold energy on the composite substrate can be reduced, and stress is less likely to be generated inside the substrate, thus avoiding damage caused by testing.

[0019] 5. In this invention, the temperature sensor on the substrate placement stage directly contacts the bottom of the composite substrate, thereby directly measuring the temperature of the composite substrate, which can more accurately reflect the test conditions. At the same time, the copper sheet set on the substrate placement stage meets the requirements for detecting the dielectric constant of the composite substrate under high and low temperature environments.

[0020] 6. In this invention, a mixing box is used to connect the hot air discharged from the vortex tube and the excess cold air from the sealed box, so that they are mixed to form a temperature value close to room temperature, and then directly discharged into the room, so as to avoid the hot and cold air being blown directly onto nearby equipment, instruments or other devices and affecting the use of other devices.

[0021] 7. In this invention, the refrigeration mechanism and the heating mechanism are used with a temperature sensor to perform high temperature, low temperature or high and low temperature cycle detection. The pressure sensor is used with a heat-conducting block to perform compressive strength detection. At the same time, the vision camera can simultaneously perform appearance property detection. It has multiple detection items and is a multi-purpose device. Attached Figure Description

[0022] The disclosure of this invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings, the same reference numerals are used to refer to the same parts. Wherein: Figure 1 This is a front view of the present invention; Figure 2 This is a rear view of the present invention; Figure 3 This is a schematic diagram of the fan configuration in this invention; Figure 4 This is a schematic diagram of the arrangement of the electric heating element in this invention; Figure 5 This is a schematic diagram of the vortex tube arrangement in this invention; Figure 6 This is a schematic diagram of the circulation pipe arrangement in this invention; Figure 7 This is a cross-sectional view of the heat-conducting block in this invention; Figure 8 This is a schematic diagram of the copper sheet arrangement in this invention; Figure 9 This is a schematic diagram of the wind-guiding slope configuration in this invention; Figure 10 This is a schematic diagram of the setup of the visual camera in this invention.

[0023] Reference numerals: 1. Body; 2. Enclosed box; 3. Testing table; 4. Substrate placement table; 5. Positioning groove; 6. Copper sheet; 7. Through port; 8. Fan; 9. Circulation pipe; 10. Heating element; 11. Eddy current tube; 12. Flange plate; 13. Heat-conducting block; 14. Threaded sleeve; 15. Through hole; 16. Air inlet pipe; 17. Hot air exhaust pipe; 18. Movable plate; 19. Fixed plate; 20. Electric cylinder; 21. Positioning rod; 22. Ventilation pipe; 23. Temperature sensor one; 24. 25. Temperature sensor 2; 26. Interface 1; 27. Interface 2; 28. Mixing box; 29. ​​Slide valve; 30. Air outlet; 31. Protective net; 32. Box door; 33. Industrial computer; 34. Composite substrate body; 35. Pressure sensor; 36. Insulation box; 37. Double-layer glass panel; 38. Double-layer heat insulation back panel; 39. Insulation cotton; 40. Hollow box; 41. Vision camera; 42. Connecting pipe 1; 43. Connecting pipe 2; 44. Air guide slope; 45. Bracket. Detailed Implementation

[0024] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0025] According to one embodiment of the present invention, Figures 1-10 As shown.

[0026] A ceramic ferrite composite substrate testing mechanism includes a body 1, with an industrial control computer 32 mounted on the top front of the body 1. A sealed box 2 is installed in the center of the interior of the body 1. The sealed box 2 has an opening on its front, and a lockable door 31 is installed at the opening via a hinge. A transparent observation window made of acrylic material is fixed in the center of the door 31. Through-holes 7 are provided on the left and right sides of the sealed box 2. An electric heating element 10 (Φ8mm, voltage adapted to 220V) is bolted to the left through-hole 7. A fan 8 (25W power) is bolted to the right through-hole 7. A circulation pipe 9 is bolted between the fan 8 and the left through-hole 7.

[0027] A vortex tube 11 is installed on the top of the sealed enclosure 2, and the cold air outlet at the bottom of the vortex tube 11 extends into the interior of the sealed enclosure 2. An air inlet 16 is connected to the air inlet at the top of the vortex tube 11, and the air inlet 16 is connected to the output end of an air pressure pump (not shown) inside the bottom of the main body 1. A hot air outlet 17 is connected to the hot air outlet of the vortex tube 11. A first connection port 25 is opened in the middle of the top of the sealed enclosure 2, and a second connection port 26 is opened on the top of the sealed enclosure 2 behind the first connection port 25. The vortex tube 11 extends into the sealed enclosure 2 through the first connection port 25, and a ventilation pipe 22 is bolted to the top of the second connection port 26, and the ventilation pipe 22 is connected to the interior of the sealed enclosure 2.

[0028] A bracket 44 is welded and fixed to the upper middle of the rear side inside the enclosed box 2. A heat insulation box 35 is bolted to the top of the bracket 44. A vision camera 40 is installed inside the heat insulation box 35. A connecting pipe 1 41 and a connecting pipe 2 42 are installed on the rear side of the heat insulation box 35. The top ends of the connecting pipe 1 41 and the connecting pipe 2 42 are welded and fixed to the ventilation pipe 22. The connecting pipe 1 41, the connecting pipe 2 42 and the ventilation pipe 22 are interconnected. A wind guide slope 43 is welded and fixed inside the ventilation pipe 22 between the connecting pipe 1 41 and the connecting pipe 2 42.

[0029] During testing, open the chamber door 31, place the ceramic ferrite composite substrate to be tested inside the sealed chamber 2, and close and lock the chamber door 31. After turning on the fan 8 and the heating element 10, the fan 8 draws air from the circulation pipe 9 and performs work on it, causing air to be blown into the sealed chamber 2 from the right through-hole 7. At the same time, air inside the sealed chamber 2 enters the circulation pipe 9 from the left through-hole 7, forming an internal air circulation between the sealed chamber 2 and the circulation pipe 9 under the drive of the fan 8. When the air flows through the heating element 10, it carries away the heat it generates, forming circulating hot air to heat the composite substrate inside the sealed chamber 2.

[0030] When the pneumatic pump is started and compressed gas is input into the vortex tube 11, cold air is blown out from the cold air outlet at the bottom of the vortex tube 11 based on the Rank-Helix effect. Since the bottom of the vortex tube 11 is located inside the sealed chamber 2, the cold air acts on the sealed chamber 2, causing its temperature to drop. The composite substrate undergoes sequential thermal cycling tests inside the sealed chamber 2 to test its high and low temperature reliability. During the test, the vision camera 40 continuously captures images of the substrate, allowing for manual or machine vision identification of whether damage has occurred based on the images.

[0031] When cold air is introduced into the sealed box 2 through the vortex tube 11, the sealed box 2 receives external air input from the air pressure pump, and excess cold air inside is discharged outward through the ventilation pipe 22, forming a stable internal and external air pressure. When the cold air flows through the ventilation pipe 22, due to the presence of the guide slope 43, the inlet of the connecting pipe 41 is located on the windward side, and the inlet of the connecting pipe 42 is located on the leeward side. When the air flows quickly through the guide slope 43, a certain downward pressure is generated on the windward side, and a certain upward lift is generated on the leeward side. The cold air is more likely to enter the connecting pipe 41 and then enter the connected insulation box 35, thus providing insulation. Cooling is carried out inside the hot box 35. When high-temperature testing is performed, the fan 8 operates in the closed box 2 and the circulation pipe 9 to generate internal circulating air. The heat insulation box 35 is located far away, and the airflow is relatively stable. The cold air inside the heat insulation box 35 is easy to keep inside. In this way, when the heat in the closed box 2 acts on the heat insulation box 35, the remaining cold air inside can be used to offset some of the heat, thereby delaying and reducing the temperature rise inside the heat insulation box 35. This provides a lower operating temperature for the vision camera 40 installed inside, so as to maintain its stable operation. The cold air used is the excess cold air reused during low-temperature environment testing.

[0032] like Figure 10 As shown, a double-layered glass panel 36 is installed on the front side of the heat insulation box 35, and a double-layered heat insulation back panel 37 is installed on the rear side of the heat insulation box 35. Insulation cotton 38 is installed inside the heat insulation box 35 between the double-layered heat insulation back panel 37 and the double-layered glass panel 36. A perforated box 39 is installed inside the insulation cotton 38. The perforated box 39 is arranged with four sides and is perforated and connected inside and out. A vision camera 40 is installed inside the perforated box 39. Connecting pipe 1 41 and connecting pipe 2 42 are inserted at the upper and lower ends of the double-layered heat insulation back panel 37. The perforated box 39, connecting pipe 1 41, connecting pipe 2 42 and ventilation pipe 22 are interconnected inside. The double-layer glass panel 36, the double-layer heat insulation back panel 37, and the heat insulation cotton 38 are all used to insulate the vision camera 40. The cold air entering from the first connecting pipe 41 can flow around the vision camera 40 in the hollow box 39 and then flow out from the second connecting pipe 42, so that a stable passage is formed inside, ensuring that excess cold air can enter the heat insulation box 35 during each low-temperature environment test.

[0033] A mixing chamber 27 is installed inside the body 1 at the rear of the sealed box 2, and a hot air exhaust pipe 17 extends into the mixing chamber 27. A slide valve 28 is bolted to the ventilation pipe 22 at the front of the mixing chamber 27, and the mixing chamber 27 is internally connected to the ventilation pipe 22. An air outlet 29 connected to the mixing chamber 27 is pre-set at the rear of the body 1, and a protective net 30 is bolted to the air outlet 29. When the vortex tube 11 is working, the air pump continuously supplies air and inputs gas into the sealed box 2. Therefore, a channel for communication between the sealed box 2 and the outside is required to maintain a basically stable internal air pressure and avoid continuous pressure rise. When the vortex tube 11 is working, the slide valve 28 is opened simultaneously, so that the sealed box 2, the ventilation pipe 22 and the mixing chamber 27 are connected, and excess gas in the sealed box 2 can be discharged from the air outlet 29 through this path. The mixing chamber 27 is connected to both the hot air exhaust pipe 17 and the ventilation pipe 22, allowing the hot air discharged from the hot air outlet of the vortex pipe 11 and the excess cold air discharged from the enclosed chamber 2 to mix within the mixing chamber 27 before being discharged from the air outlet 29. This ensures that the outlet air temperature is close to room temperature, preventing adverse effects on nearby equipment from the separate discharge of hot or cold air. Simultaneously, during high-temperature environment testing, the slide valve 28 is closed, creating a relatively enclosed space in the ventilation pipe 22 with one end blocked and the other entering. This makes it difficult for the internal cold air to be expelled by the hot air, allowing the cold air inside the insulation chamber 35 to remain stably.

[0034] like Figure 8 As shown, a testing platform 3 is installed in the middle of the bottom inner side of the sealed box 2. A substrate placement platform 4 is installed on the top of the testing platform 3. A positioning groove 5 is pre-set in the middle of the top of the substrate placement platform 4. The positioning groove 5 is customized according to the shape of the composite substrate. When testing the composite substrate, a substrate placement platform 4 with the corresponding shape of the positioning groove 5 is selected, and the composite substrate body 33 is placed in the positioning groove 5. A temperature sensor 23 is embedded in the middle of the substrate placement platform 4, and its detection end is in contact with the bottom surface of the composite substrate body 33. Copper sheets 6 are embedded in the substrate placement platforms 4 on the left and right sides of the positioning groove 5. The high and low temperature reliability test of the composite substrate body 33 first relies on the temperature inside the sealed box 2 to act on the composite substrate body 33 through heat conduction. Then, the temperature sensor 23 measures the temperature from the bottom surface of the composite substrate body 33. Based on the measured temperature, the output power of the hot end control valve of the eddy current tube 11 or the electric heating tube 10 is adjusted to adjust the temperature inside the sealed box 2 to the required testing range. The positioning groove 5 provides positioning for the composite substrate body 33. After placement, its left and right bottom surfaces contact the copper sheet 6. After the copper sheet 6 is connected to the test circuit, the dielectric constant can be measured in real time during high and low temperature testing, thereby detecting the thermal shock stability of the composite substrate.

[0035] A fixed plate 19 is installed inside the body 1 above the enclosed box 2, and a movable plate 18 is installed below the fixed plate 19. A vortex tube 11 is fitted into the middle of the fixed plate 19. A flange plate 12 is fixed to the vortex tube 11 above the movable plate 18, and the flange plate 12 is bolted to the movable plate 18. An electric cylinder 20 is bolted to the fixed plate 19 on the left side of the vortex tube 11. The electric cylinder 20 has an effective stroke of 12cm and an accuracy of ±0.01mm. The bottom output end of the electric cylinder 20 abuts against the movable plate 18 and is fixed with bolts. Positioning rods 21 are bolted to the four corners of the top of the movable plate 18. The positioning rods 21 pass through the four corners of the fixed plate 19 and form a sliding connection. Although the airflow velocity at the cold air outlet of the vortex tube 11 varies with the inlet pressure, the overall velocity is low. The electric cylinder 20 allows for control during cold testing, pushing the movable plate 18 downwards, which in turn drives the vortex tube 11 downwards via the flange plate 12, bringing the cold air outlet closer to the composite substrate body 33 and thus increasing the cooling speed. Since the vortex tube 11 can move up and down, the air intake pipe 16 must be a flexible hose or used in conjunction with a corrugated pipe to ensure a continuous and stable compressed air input while the vortex tube 11 is moving.

[0036] Temperature sensor 24 is installed in the middle of the rear side inside the sealed box 2. Both temperature sensor 24 and temperature sensor 23 have a resistance of 100kΩ and an operating range of -50℃ to 200℃. A heat-conducting block 13 is installed at the bottom of the eddy tube 11. A threaded sleeve 14 is integrally formed and fixed to the top of the heat-conducting block 13. Multiple through holes 15 are evenly spaced on the outer side of the heat-conducting block 13, and these through holes 15 communicate with the interior of the threaded sleeve 14. The cold air outlet at the bottom of the eddy tube 11 is threadedly connected to the threaded sleeve 14. Temperature sensor 24 is used to detect the ambient temperature inside the sealed box 2, distinguishing it from the temperature of the composite substrate body 33 detected by temperature sensor 23. The eddy tube 11 cools relatively quickly, while the composite substrate body 33 has relatively low thermal conductivity. Direct blowing of cold air may lead to uneven temperature distribution and unnecessary thermal stress. After the heat-conducting block 13 is installed, the electric cylinder 20 operates to cause the heat-conducting block 13 to adhere to the top surface of the composite substrate body 33. Cold air enters the interior of the heat-conducting block 13 and is discharged into the sealed box 2 through the through hole 15. Instead of directly blowing on the composite substrate body 33, cooling is achieved through solid-state heat conduction between the heat-conducting block 13 and the composite substrate body 33. Although the cooling rate is slightly lower than that of direct cold air blowing, this method allows for more uniform cooling of the composite substrate body 33 and reduces the generation of thermal stress.

[0037] A pressure sensor 34 is threadedly connected to the heat-conducting block 13 on the outer side of the threaded sleeve 14. The pressure range is 0-20 MPa, and the output end of the pressure sensor 34 extends downward through the heat-conducting block 13. During testing, the heat-conducting block 13 is in direct contact with the composite substrate body 33. At this time, the output of the electric cylinder 20 can be controlled. Combined with the detection of the pressure sensor 34 output end on the composite substrate body 33, the pressure of the heat-conducting block 13 on the composite substrate body 33 is detected, thereby performing a compressive strength test.

[0038] The technical scope of this invention is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the protection scope of this invention.

Claims

1. A ceramic ferrite composite substrate testing mechanism, comprising a body (1), characterized in that, A closed box (2) is installed in the middle of the body (1). A heating mechanism and a cooling mechanism for adjusting the internal temperature of the closed box (2) are installed on the closed box (2). The heating mechanism is arranged horizontally and the cooling mechanism is arranged vertically. A heat insulation box (35) is installed inside the closed box (2). A vision camera (40) is installed inside the heat insulation box (35). The inside of the heat insulation box (35) is connected to the inside of the cooling mechanism through a non-powered controllable component. The non-powered controllable component includes a connecting pipe connecting the heat insulation box (35) and the cooling mechanism.

2. The ceramic ferrite composite substrate testing mechanism according to claim 1, characterized in that, The heating mechanism includes an electric heating tube (10), and through openings (7) are provided on the left and right sides of the sealed box (2). The electric heating tube (10) is installed on the through opening (7) on the left side of the sealed box (2), and a fan (8) is installed on the through opening (7) on the right side of the sealed box (2). A circulation pipe (9) is installed between the fan (8) and the through opening (7) on the left side of the sealed box (2).

3. The ceramic ferrite composite substrate testing mechanism according to claim 1, characterized in that, The refrigeration mechanism includes a vortex tube (11), a fixing plate (19) is installed inside the body (1) above the sealed box (2), the vortex tube (11) is installed in the middle of the fixing plate (19), the bottom cold air outlet of the vortex tube (11) passes through the top of the sealed box (2) and extends to the inside of the sealed box (2), the top air inlet of the vortex tube (11) is connected to an air inlet pipe (16), the air inlet pipe (16) is connected to the output end of the air pressure pump inside the bottom of the body (1), and a ventilation pipe (22) is installed on the top of the sealed box (2).

4. The ceramic ferrite composite substrate testing mechanism according to claim 3, characterized in that, The connecting pipe includes a first connecting pipe (41) and a second connecting pipe (42) installed on the rear side of the heat insulation box (35). The top ends of the first connecting pipe (41) and the second connecting pipe (42) are fixed to the ventilation pipe (22). The first connecting pipe (41), the second connecting pipe (42) and the ventilation pipe (22) are interconnected. A guide slope (43) is fixed inside the ventilation pipe (22) between the first connecting pipe (41) and the second connecting pipe (42).

5. The ceramic ferrite composite substrate testing mechanism according to claim 4, characterized in that, The front side of the heat insulation box (35) is equipped with a double-layer glass panel (36), and the rear side of the heat insulation box (35) is equipped with a double-layer heat insulation back plate (37). The heat insulation box (35) between the double-layer heat insulation back plate (37) and the double-layer glass panel (36) is equipped with insulation cotton (38). The hollow box (39) is installed inside the insulation cotton (38). The hollow box (39) is four-sided and hollowed out and connected inside and outside. The visual camera (40) is installed inside the hollow box (39). The connecting pipe one (41) and the connecting pipe two (42) are inserted at the upper and lower ends of the double-layer heat insulation back plate (37). The hollow box (39), the connecting pipe one (41), the connecting pipe two (42) and the ventilation pipe (22) are interconnected inside.

6. The ceramic ferrite composite substrate testing mechanism according to claim 1, characterized in that, A movable plate (18) is installed below the fixed plate (19). A flange plate (12) is fixed on the vortex tube (11) above the movable plate (18). The flange plate (12) is fixed to the movable plate (18). An electric cylinder (20) is installed on the fixed plate (19) to the left of the vortex tube (11). The bottom output end of the electric cylinder (20) is fixed to the movable plate (18). Positioning rods (21) are installed at the four corners of the top of the movable plate (18). The positioning rods (21) pass through the four corners of the fixed plate (19) to form a sliding plug-in connection.

7. The ceramic ferrite composite substrate testing mechanism according to claim 6, characterized in that, The sealed box (2) has a detection platform (3) installed in the middle of the bottom. The detection platform (3) has a substrate placement platform (4) installed on the top. The substrate placement platform (4) has a positioning groove (5) in the middle of the top. The composite substrate body (33) is placed in the positioning groove (5). Copper sheets (6) are embedded in the substrate placement platforms (4) on the left and right sides of the positioning groove (5). A temperature sensor (23) is embedded in the middle of the substrate placement platform (4). The detection end of the temperature sensor (23) is in contact with the bottom surface of the composite substrate body (33).

8. The ceramic ferrite composite substrate testing mechanism according to claim 7, characterized in that, Temperature sensor 2 (24) is installed in the middle of the rear side inside the enclosed box (2). A heat-conducting block (13) is installed at the bottom of the vortex tube (11). A threaded sleeve (14) is fixed on the top of the heat-conducting block (13). Multiple through holes (15) with equal spacing are opened on the outside of the heat-conducting block (13). The through holes (15) are connected to the inside of the threaded sleeve (14). The cold air outlet at the bottom of the vortex tube (11) is threaded to the threaded sleeve (14). A pressure sensor (34) is threaded on the heat-conducting block (13) outside the threaded sleeve (14).

9. The ceramic ferrite composite substrate testing mechanism according to claim 3, characterized in that, The hot air outlet of the vortex tube (11) is connected to a hot air exhaust pipe (17). A first interface (25) is opened in the middle of the top of the sealed box (2). A second interface (26) is opened on the top of the sealed box (2) behind the first interface (25). The vortex tube (11) extends through the first interface (25) into the sealed box (2). The ventilation pipe (22) is installed with the second interface (26).

10. A ceramic ferrite composite substrate testing mechanism according to claim 9, characterized in that, A mixing chamber (27) is installed inside the body (1) on the rear side of the enclosed box (2). A hot air exhaust pipe (17) extends into the mixing chamber (27). A ventilation pipe (22) is connected to the interior of the mixing chamber (27). A slide valve (28) is installed on the ventilation pipe (22) on the front side of the mixing chamber (27). An air outlet (29) connected to the mixing chamber (27) is pre-set on the rear side of the body (1).

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