A test apparatus for discrete devices
Patent Information
- Application Number
- CN202522193977.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-16
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-10-16
AI Technical Summary
[0004]为了克服现有分立器件从低温箱转移到测试座上存在一定的温度变化时间，这可能导致器件的实际测试温度偏离设定温度，从而影响测试结果的准确性的情况，本申请提供一种分立器件的测试设备
[0021]综上所述，本申请包括以下至少一种有益技术效果：通过保温框箱隔离了分立器件在其高温或低温处理前后与外界环境的直接接触。具体而言，加热箱用于提供高温环境，冷却箱用于提供低温环境，保温框箱则在处理和测试之间作为分立器件的中转站，维持其处理后的温度稳定性。移动板及其夹持滑板用于固定分立器件，确保其在高温或低温处理前后不变形。平移电机和平移螺杆的作用是驱动杆架在滑框中移动，分别将分立器件送入加热箱或冷却箱进行处理，然后带回保温框箱中。升降电机和升降螺杆则负责驱动移动板上下移动，将处理后的分立器件从加热箱或冷却箱运送至测试座进行性能测试。在高温或低温处理前，分立器件被夹持固定在移动板上，然后通过平移机构送入加热箱或冷却箱进行处理；处理后，由平移机构带回保温框箱，再通过升降机构上移至测试座进行测试，从而避免了分立器件在温度转移过程中的温度变化，确保了测试时温度的准确性。
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Figure CN224840412U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of discrete device testing components, and in particular to a testing device for discrete devices. Background Technology
[0002] In the semiconductor industry, discrete devices are gaining increasing importance due to their crucial roles in a wide range of applications, including power management, signal processing, power control, amplification, and switching. These devices typically require long-term functional testing in harsh high and low temperature environments to ensure their performance stability and reliability.
[0003] Traditional testing methods typically involve testing at low temperatures first, and then switching to high temperatures. However, during this process, there is a certain time for temperature change as the device is transferred from the low-temperature chamber to the test fixture. This may cause the actual test temperature of the device to deviate from the set temperature, thus affecting the accuracy of the test results. Utility Model Content
[0004] To overcome the problem that existing discrete devices experience a certain temperature change time when transferred from the cryogenic chamber to the test socket, which may cause the actual test temperature of the device to deviate from the set temperature and thus affect the accuracy of the test results, this application provides a test device for discrete devices.
[0005] The testing equipment for discrete devices provided in this application adopts the following technical solution: A testing device for discrete devices includes an insulated box with an opening on its front side. Doors are rotatably connected to both sides of the opening. A heating chamber and a cooling chamber are respectively fixedly connected to the symmetrical vertical ends of the two sides of the insulated box. Heating and cooling components are respectively fixed to the inner walls of the heating and cooling chambers. A test seat is fixedly through the top surface of the insulated box. A clamping assembly is installed inside the insulated box, and a sliding frame is horizontally fixed to the lower inside of the box. The clamping assembly includes a rod and a movable plate. The rod is vertically installed inside the insulated box, and its bottom end is horizontally slidably assembled into the sliding frame. Two movable plates are symmetrically arranged, and a hole frame is horizontally fixed between the two movable plates. The hole frame is vertically slidably assembled onto the rod. Two clamping slide plates are symmetrically arranged on the vertical end of the movable plate away from the rod, and these two clamping slide plates are horizontally slidably assembled onto the movable plate. Clamping seats for clamping discrete devices are fixed to adjacent vertical end faces of the two clamping slide plates.
[0006] By adopting the above technical solution, the insulated frame box is mainly used to provide a temperature-controlled testing environment. Its front opening facilitates the insertion of discrete components to be tested, and it is sealed by doors on both sides. The heating and cooling chambers provide heating and cooling functions respectively, with temperature regulation achieved through heating and cooling components on the inner walls, ensuring precise temperature control during testing. The test seat is used to fix and support the discrete components. The clamping assembly, through the cooperation of the rod and the moving plate, can move up and down inside the insulated frame box to accurately clamp the discrete components. The sliding frame provides horizontal sliding support for the rod, ensuring stable movement. The hole frame connects the two moving plates, allowing them to move synchronously. The clamping slide and clamping seat are used to precisely fix the discrete components to be tested. The sliding frame and rod enable the clamping assembly to move up and down within the insulated frame box. The clamping seat on the clamping assembly can hold the discrete components. Then, the temperature is controlled by the heating and cooling components of the heating and cooling chambers. Finally, the discrete components are placed on the test seat for testing, ensuring that the various performance tests of the discrete components are completed in a temperature-controlled environment.
[0007] Optionally, a slider is horizontally fixed on the bottom surface of the rod frame, and the slider is horizontally slidably assembled in the slide frame.
[0008] By adopting the above technical solution, the frame is horizontally slidably installed in the sliding frame by a slider fixed on the bottom surface, and can move horizontally inside the insulation box.
[0009] Optionally, a translation motor is horizontally fixed at one end of the lower side of the interior of the insulation box, and a translation screw is horizontally fixed at the output end of the translation motor.
[0010] By adopting the above technical solution, the translation motor is horizontally fixed at one end of the lower side of the insulation box, and its output end is fixed with a translation screw to drive the screw to perform linear motion in the horizontal direction; the screw barrel is horizontally fixed on the bottom surface of the frame and forms a threaded connection with the translation screw, so that the frame can achieve reciprocating movement in the horizontal direction through the rotational movement of the screw.
[0011] Optionally, a screw cylinder is horizontally fixed on the bottom surface of the frame, and the translation screw is threaded through and assembled in the screw cylinder.
[0012] By adopting the above technical solution, when the translation motor starts, the translation screw fixedly connected to its output end begins to rotate. Since a threaded connection is formed between the screw barrel and the translation screw, the rotational motion of the translation screw is converted into linear motion of the rod frame along the horizontal direction of the sliding frame, thereby realizing the horizontal translation of the rod frame inside the insulation box. This design allows for precise control of the rod frame's position.
[0013] Optionally, a lifting screw is vertically rotatably connected inside the frame, and a lifting motor is vertically fixed at the top of the frame, with the output end of the lifting motor fixed at the top of the lifting screw.
[0014] By adopting the above technical solution, the frame serves as a supporting structure, providing stable support. The lifting motor provides power, driving the lifting screw to rotate, thereby causing the moving plate to rise or fall vertically. Driven by the lifting screw, the moving plate moves vertically along the screw holes within the frame, achieving height adjustment.
[0015] Optionally, a screw hole is provided through the middle of the frame between the two movable plates, and the screw hole is threaded through and assembled with the lifting screw.
[0016] By adopting the above technical solution, the perforated frame provides a precise guide path for the moving plate, ensuring its stability and reliability during lifting. Overall, the device uses a lifting motor to drive the lifting screw to rotate, causing the moving plate to lift and lower under the guidance of the perforated frame, achieving height adjustment and making it suitable for scenarios requiring vertical height adjustment.
[0017] Optionally, a slide bar is horizontally fixed on the vertical end face of the movable plate away from the rod frame, and the slide bar of the movable plate is slidably assembled with the clamping slide plate. Both sides of the vertical end face of the movable plate away from the rod frame are vertically fixed with baffles, and clamping springs are horizontally fixed on the baffles, with the other end of the clamping springs fixed on the clamping slide plate.
[0018] By adopting the above technical solution, the slider serves as a guide structure for the moving plate, ensuring its smooth movement along a predetermined direction. The baffle and clamping spring work together; when the moving plate moves relative to the frame, the clamping spring drives the clamping slide plate to clamp the workpiece, thus achieving workpiece gripping and fixation. Specifically, when the moving plate moves towards the workpiece, the slider on it slides into contact with the clamping slide plate, causing the clamping slide plate to move in the same direction and, under the action of the baffle and clamping spring, tightly clamp the workpiece, achieving precise positioning and stable fixation, ensuring the workpiece's stability in subsequent operations.
[0019] Optionally, both the heating chamber and the cooling chamber are fitted with insulation sleeves on their outer walls.
[0020] By adopting the above technical solution, insulation jackets are respectively installed on the outer walls of the heating chamber and the cooling chamber. The heating chamber provides a high-temperature environment to heat the material and maintain it at the required high temperature; the cooling chamber provides a low-temperature environment to cool the material and maintain it at the required low temperature. The function of the insulation jackets is to reduce heat loss, increase the effective operating temperature of the heating and cooling chambers, thereby maintaining the internal temperature more efficiently and reducing energy consumption. The working principle is that the heating chamber heats the material to the required temperature, and the insulation jacket reduces heat loss to maintain the high-temperature environment; the cooling chamber cools the material to the required low temperature, and the insulation jacket reduces cold loss to maintain the low-temperature environment, thus ensuring the efficiency and stability of the heating and cooling processes.
[0021] In summary, this application includes at least one of the following beneficial technical effects: The insulated frame isolates discrete components from direct contact with the external environment before and after high-temperature or low-temperature treatment. Specifically, the heating chamber provides a high-temperature environment, the cooling chamber provides a low-temperature environment, and the insulated frame acts as a transfer station for the discrete components between treatment and testing, maintaining their temperature stability after treatment. The moving plate and its clamping slide are used to fix the discrete components, ensuring they do not deform before or after high-temperature or low-temperature treatment. The translation motor and translation screw drive the rod frame to move within the slide frame, respectively sending the discrete components into the heating chamber or cooling chamber for treatment, and then bringing them back to the insulated frame. The lifting motor and lifting screw drive the moving plate to move up and down, transporting the treated discrete components from the heating chamber or cooling chamber to the test stand for performance testing. Before high-temperature or low-temperature treatment, discrete components are clamped and fixed on a moving plate, and then sent into a heating or cooling chamber for treatment via a translation mechanism. After treatment, the translation mechanism takes them back to the insulated box, and then the lifting mechanism moves them to the test stand for testing. This avoids temperature changes in discrete components during the temperature transfer process and ensures the accuracy of the temperature during testing. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a schematic diagram of the overall structure of the embodiment of this application in an exploded state; Figure 3 This is a schematic diagram of the structure of the insulated box in the disassembled state according to an embodiment of this application; Figure 4 This is a schematic diagram of the clamping component in an exploded state according to an embodiment of this application; Figure 5 This is a schematic diagram of the structure of the movable plate in the disassembled state according to an embodiment of this application.
[0023] Explanation of reference numerals in the attached drawings: 1. Insulated box; 11. Sliding frame; 12. Translation screw; 13. Translation motor; 14. Test seat; 15. Box door; 2. Heating box; 3. Cooling box; 4. Clamping assembly; 41. Rod frame; 42. Lifting motor; 43. Lifting screw; 44. Slider; 45. Screw barrel; 46. Moving plate; 461. Sliding bar; 462. Baffle; 463. Clamping spring; 47. Hole frame; 471. Screw hole; 48. Clamping slide plate; 49. Clamping seat; 5. Insulation sleeve. Detailed Implementation
[0024] The present application will be further described in detail below with reference to the accompanying drawings.
[0025] This application discloses a testing device for discrete devices. (Refer to...) Figure 1 , Figure 2 , Figure 3 and Figure 4 A testing device for discrete devices includes an insulated box 1 with an opening at its front end. Doors 15 are rotatably connected to both sides of the opening. A heating chamber 2 and a cooling chamber 3 are respectively fixedly connected to the symmetrical vertical ends of the two sides of the insulated box 1. Heating components and cooling components are respectively fixed to the inner walls of the heating chamber 2 and the cooling chamber 3. A test seat 14 is fixedly fixed through the top surface of the insulated box 1. A clamping assembly 4 is provided inside the insulated box 1, and a sliding frame 11 is horizontally fixed to the lower inside of the insulated box 1. The clamping assembly 4 includes a rod 41. The movable plate 46 and the rod frame 41 are vertically arranged inside the heat preservation box 1, and the bottom end of the rod frame 41 is horizontally slidably assembled in the slide frame 11. Two movable plates 46 are symmetrically arranged, and a hole frame 47 is horizontally fixed between the two movable plates 46. The hole frame 47 is vertically slidably assembled on the rod frame 41. Two clamping slide plates 48 are symmetrically arranged on the vertical end face of the movable plate 46 away from the rod frame 41. The two clamping slide plates 48 are horizontally slidably assembled on the movable plate 46, and a clamping seat 49 for clamping discrete devices is fixed on the adjacent vertical end face of the two clamping slide plates 48.
[0026] By adopting the above technical solution, the insulated box 1 is mainly used to provide a temperature-controllable testing environment. Its front opening facilitates the access of discrete components to be tested, and it is sealed by the doors on both sides. The heating box 2 and cooling box 3 provide heating and cooling functions respectively. Temperature regulation is achieved through heating and cooling components on the inner wall to ensure precise temperature control during the testing process. The test seat 14 is used to fix and support the discrete components. The clamping component 4 can move up and down inside the insulated box 1 through the cooperation of the rod 41 and the moving plate 46 to achieve precise clamping of the discrete components. The sliding frame 11 provides horizontal sliding support for the rod 41 to ensure its stable movement. The hole frame 47 connects the two moving plates 46 so that they move synchronously. The clamping slide plate 48 and the clamping seat 49 are used to accurately fix the discrete components to be tested. The clamping assembly 4 moves up and down within the insulated box 1 via the sliding frame 11 and the rod frame 41. The clamps on the clamping assembly 4 can hold the discrete components. Then, the temperature is controlled by the heating and cooling components of the heating box 2 and the cooling box 3. Finally, the discrete components are placed on the test seat 14 for testing, ensuring that the performance of the discrete components is tested under temperature control.
[0027] Reference Figure 4A slider 44 is horizontally fixed to the bottom surface of the rod frame 41, and the slider 44 is horizontally slidably assembled in the slide frame 11. The rod frame 41 is horizontally slidably installed in the slide frame 11 by the slider 44 fixed to the bottom surface, and can move horizontally inside the insulation box 1. A translation motor 13 is horizontally fixed to one end of the lower side of the interior of the insulation box 1, and a translation screw 12 is horizontally fixed to the output end of the translation motor 13. The translation motor 13 is horizontally fixed to one end of the lower side of the insulation box 1, and its output end is fixed to the translation screw 12, which is used to drive the screw to perform horizontal linear motion; the screw barrel 45 is horizontally fixed to the bottom surface of the rod frame 41 and forms a threaded connection with the translation screw 12, so that the rod frame 41 can achieve horizontal reciprocating movement through the rotational movement of the screw. The screw barrel 45 is horizontally fixed to the bottom surface of the rod frame 41, and the translation screw 12 is threaded through and assembled in the screw barrel 45. When the translation motor 13 starts, the translation screw 12, which is fixedly connected to its output end, begins to rotate. Since a threaded connection is formed between the screw barrel 45 and the translation screw 12, the rotational motion of the translation screw 12 is converted into linear motion of the rod 41 along the horizontal direction of the slide frame 11, thereby achieving horizontal translation of the rod 41 inside the insulation box 1. This design allows for precise control of the position of the rod 41.
[0028] Reference Figure 4 A lifting screw 43 is vertically rotatably connected inside the frame 41, and a lifting motor 42 is vertically fixed to the top of the frame 41, with the output end of the lifting motor 42 fixed to the top of the lifting screw 43. The frame 41 serves as a support structure, providing stable support. The lifting motor 42 provides power to drive the lifting screw 43 to rotate, thereby causing the moving plate 46 to rise or fall vertically. Driven by the lifting screw 43, the moving plate 46 moves vertically along the screw hole 471 inside the frame 47, achieving height adjustment. A screw hole 471 is provided through the middle of the frame 47 between the two moving plates 46, and the screw hole 471 is threaded through and assembled with the lifting screw 43. The frame 47 provides a precise guide path for the moving plate 46, ensuring the stability and reliability of the moving plate 46 during the lifting process. Overall, the device drives the lifting screw 43 to rotate via the lifting motor 42, causing the moving plate 46 to move up and down under the guidance of the hole frame 47, thus achieving height adjustment and making it suitable for scenarios that require vertical height adjustment.
[0029] Reference Figure 4 and Figure 5A slide bar 461 is horizontally fixed to the vertical end face of the movable plate 46 away from the rod 41, and the slide bar 461 of the movable plate 46 is slidably assembled with the clamping slide plate 48. Baffles 462 are vertically fixed to both sides of the vertical end face of the movable plate 46 away from the rod 41, and clamping springs 463 are horizontally fixed on the baffles 462, with the other end of the clamping springs 463 fixed to the clamping slide plate 48. The slide bar 461 serves as a guide structure for the movable plate 46, ensuring that the movable plate 46 moves smoothly in a predetermined direction. The baffles 462 and the clamping springs 463 work together; when the movable plate 46 moves relative to the rod 41, the clamping springs 463 drive the clamping slide plate 48 to clamp the workpiece, thereby achieving the gripping and fixing of the workpiece. The specific working principle is as follows: when the moving plate 46 moves towards the workpiece, the slide bar 461 on it slides into contact with the clamping slide plate 48, causing the clamping slide plate 48 to also move in the same direction, and under the action of the baffle 462 and the clamping spring 463, it tightly clamps the workpiece, achieving precise positioning and stable fixation, and ensuring the stability of the workpiece in subsequent operations.
[0030] Reference Figure 3 Both the heating chamber 2 and the cooling chamber 3 are fitted with insulation sleeves 5 on their outer walls. The heating chamber 2 provides a high-temperature environment to heat the material and maintain it at the required high temperature; the cooling chamber 3 provides a low-temperature environment to cool the material and maintain it at the required low temperature. The function of the insulation sleeves 5 is to reduce heat loss, increase the effective operating temperature of the heating chamber 2 and the cooling chamber 3, thereby maintaining the internal temperature more efficiently and reducing energy consumption. The working principle is as follows: the heating chamber 2 heats the material to the required temperature, and the insulation sleeves 5 reduce heat loss to maintain the high-temperature environment; the cooling chamber 3 cools the material to the required low temperature, and the insulation sleeves 5 reduce cold loss to maintain the low-temperature environment, thus ensuring the efficiency and stability of the heating and cooling processes.
[0031] The implementation principle of a test device for discrete devices according to an embodiment of this application is as follows: First, during testing, open the door of the insulation box 1. According to the high-temperature testing requirements of discrete components, squeeze and clamp the discrete components onto the clamping slide plate 48 of the moving plate 46 near the heating box 2. Similarly, according to the low-temperature testing requirements of discrete components, squeeze and clamp the discrete components onto the clamping slide plate 48 of the moving plate 46 near the cooling box 3. Before testing, according to the high-temperature or low-temperature testing requirements, start the heating box 2 or cooling box 3 to preheat or precool the heating box 2 or cooling box 3 and the insulation box 1. Then, start the translation motor 13 to drive the translation screw 12 to rotate, and drive the rod frame 41 to move towards the heating box 2 or cooling box 3 in the slide frame 11, so as to insert the clamped discrete components into the heating box 2 or cooling box 3 for high-temperature or low-temperature testing of discrete components. Then, during testing, the translation motor 13 is started to drive the translation screw 12 to rotate, and the drive rod 41 is pulled out from the heating box 2 or cooling box 3 in the slide frame 11. Then, the lifting motor 42 is started to drive the lifting screw 43 to rotate, and the vertical drive moving plate 46 clamps the discrete device after high temperature or low temperature treatment and moves it vertically upward, so that the discrete device is inserted into the test seat 14 for performance testing. Thus, when the discrete device after high temperature or low temperature treatment is taken out during testing, it runs to the heat preservation box 1 for testing, thereby avoiding the device temperature from changing rapidly when the device treated under high temperature and low temperature conditions is transferred to the external test seat 14, causing the actual test temperature of the device to deviate from the set temperature and affecting the device detection accuracy.
[0032] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A testing device for discrete devices, characterized in that, The device includes an insulated box (1), with an opening on the front end face of the insulated box (1), and doors (15) rotatably connected to both sides of the opening. A heating box (2) and a cooling box (3) are respectively fixedly connected to the symmetrical vertical end faces of the insulated box (1), and heating components and cooling components are respectively fixed on the inner walls of the heating box (2) and the cooling box (3). A test seat (14) is fixedly fixed through the top surface of the insulated box (1). A clamping component (4) is provided inside the insulated box (1), and a sliding frame (11) is horizontally fixed on the lower side inside the insulated box (1). The clamping component (4) includes a rod frame (41) and a moving plate (46). The rod frame (41) is vertically arranged inside the heat-insulating frame box (1), and the bottom end of the rod frame (41) is horizontally slidably assembled in the sliding frame (11). Two movable plates (46) are symmetrically arranged, and a hole frame (47) is horizontally fixed between the two movable plates (46). The hole frame (47) is vertically slidably assembled on the rod frame (41). Two clamping slide plates (48) are symmetrically arranged on the vertical end face of the movable plate (46) away from the rod frame (41). The two clamping slide plates (48) are horizontally slidably assembled on the movable plate (46), and a clamping seat (49) for clamping discrete devices is fixed on the adjacent vertical end face of the two clamping slide plates (48).
2. The testing equipment for discrete devices according to claim 1, characterized in that: A slider (44) is horizontally fixed on the bottom surface of the rod frame (41), and the slider (44) is horizontally slidably assembled in the slide frame (11).
3. The testing equipment for discrete devices according to claim 2, characterized in that: A translation motor (13) is horizontally fixed at one end of the lower side of the interior of the heat-insulating box (1), and a translation screw (12) is horizontally fixed at the output end of the translation motor (13).
4. The testing equipment for discrete devices according to claim 3, characterized in that: A screw cylinder (45) is horizontally fixed on the bottom surface of the rod frame (41), and the translation screw (12) is threaded through and assembled in the screw cylinder (45).
5. The testing equipment for discrete devices according to claim 1, characterized in that: The rod frame (41) is vertically rotatably connected to a lifting screw (43), and a lifting motor (42) is vertically fixed at the top of the rod frame (41), with the output end of the lifting motor (42) fixed at the top of the lifting screw (43).
6. The testing equipment for discrete devices according to claim 5, characterized in that: A screw hole (471) is provided in the middle of the hole frame (47) between the two movable plates (46), and the screw hole (471) is threaded through and assembled with the lifting screw (43).
7. The testing equipment for discrete devices according to claim 1, characterized in that: A slide bar (461) is horizontally fixed on the vertical end face of the movable plate (46) away from the rod (41), and the slide bar (461) of the movable plate (46) is slidably assembled with the clamping slide plate (48). Both sides of the vertical end face of the movable plate (46) away from the rod (41) are vertically fixed with baffles (462), and a clamping spring (463) is horizontally fixed on the baffle (462), and the other end of the clamping spring (463) is fixed on the clamping slide plate (48).
8. The testing equipment for discrete devices according to claim 1, characterized in that: Both the heating box (2) and the cooling box (3) are fitted with heat insulation sleeves (5).