High temperature resistant test box for electronic products

Abstract

The utility model discloses electronic product high temperature resistance test box relates to electronic product test equipment technical field, including the box, the lower end surface four corners of box are all fixedly connected with support leg, the box wall is equipped with U shape ventilation cavity, be equipped with the heating assembly for heating the inside of box in U shape ventilation cavity, the inside of box is connected with the tray frame of sliding, a plurality of product trays are fixedly connected with a plurality of product trays on the tray frame, a plurality of the placing groove for placing electronic product are equipped in product tray. The utility model discloses through setting up U shape ventilation cavity, lower vent and lower vent can form circulating air duct, make the temperature distribution of box interior more uniform, the heat removal component of setting up can make the air exchange channel of box and outside, and then can export the high temperature of box interior fast, and then avoid the problem that the electronic product high temperature air gushes out.

Description

Technical Field

[0001] This utility model relates to the field of electronic product testing equipment technology, specifically to a high-temperature resistance testing chamber for electronic products. Background Technology

[0002] Electronic products refer to devices, instruments, or apparatuses that use electronic information technology as their core, combining electronic components and circuit design to achieve specific functions. They encompass a wide range of categories, from everyday smartphones and laptops to automated control equipment in the industrial field, and precision electronic instruments in aerospace. High-temperature resistance testing is crucial throughout the entire lifecycle of electronic products. On the one hand, high-temperature environments are common scenarios that electronic products may encounter in actual use, such as mobile devices used outdoors in summer and industrial control equipment operating in confined spaces. High-temperature resistance testing can identify potential performance degradation and component damage under high-temperature conditions in advance, ensuring that products can operate stably in high-temperature environments after being launched on the market, thus guaranteeing product quality and user safety.

[0003] In high-temperature resistance testing of electronic products, high-temperature testing equipment is generally used. For example, the existing technology CN217238242U proposes an electronic product aging test device. This device can continuously raise the temperature inside the test chamber, keeping the electronic product in a high-temperature state to achieve high-temperature testing. However, it lacks high-temperature protection measures during use. In high-temperature resistance testing of battery products, the test temperature is generally between 60 and 150 degrees Celsius, depending on the type of product being tested. After the high-temperature test is completed, opening the chamber door will cause hot air to rush out and burn the staff. Therefore, existing testing equipment is generally opened only after a period of cooling to prevent burns. However, because the chamber is a sealed structure, the internal temperature drops slowly, which wastes a lot of time and reduces work efficiency. To address the above problems, we provide a high-temperature resistance test chamber for electronic products. Utility Model Content

[0004] The purpose of this invention is to provide a high-temperature resistance test chamber for electronic products to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A high-temperature resistance test chamber for electronic products includes a chamber body. Support legs are fixedly connected to the four corners of the lower end face of the chamber body. A U-shaped ventilation cavity is provided in the chamber wall, and a heating component for heating the interior of the chamber is installed within the U-shaped ventilation cavity. A tray frame is slidably connected inside the chamber body. Several product trays are fixedly connected to the upper end of the tray frame. Several placement slots for placing electronic products are provided within each product tray, and several ventilation holes are provided at the bottom of each placement slot. A first sealing plate is fixedly connected to the side of the tray frame and product trays away from the chamber body. The first sealing plate has a door lock latch for fixing to the chamber body. External casters are installed on both sides of the lower end of the first sealing plate. Internal rollers are installed on the lower end of the side of the tray frame away from the first sealing plate. Limiting blocks are fixedly connected to the lower ends of both sides of the opening of the chamber body, and the limiting blocks are located between the product trays and the tray frame.

[0007] As a further embodiment of this utility model: the heating component includes an upper air outlet, which is located on the upper surface inside the housing and communicates with a U-shaped ventilation cavity. A lower ventilation opening communicating with the U-shaped ventilation cavity is provided on the lower surface of the housing. An electric heating coil is provided at the upper end of the vertical section of the U-shaped ventilation cavity. A ventilation block is fixedly connected to the U-shaped ventilation cavity below the electric heating coil. A circulation component for circulating hot air is provided inside the ventilation block. A heat exhaust component for discharging hot air from inside the housing is also provided at the lower end of the U-shaped ventilation cavity.

[0008] As a further embodiment of this utility model: the circulation component includes two drive motors, which are fixedly connected to the lower end face of the housing below the ventilation block. Two air ducts are opened inside the ventilation block. The output shafts of the drive motors are fixedly connected to drive shafts, and blades are fixedly connected to the positions where the drive shafts extend into the air ducts.

[0009] As a further embodiment of this utility model: the heat dissipation component includes an air outlet, which is located at the end of the lower end face of the housing away from the ventilation block. An air inlet is located at the end of the lower end face of the housing near the ventilation block. A second sealing plate is rotatably connected to both the air inlet and one side of the U-shaped ventilation cavity. A ventilation frame that cooperates with the second sealing plate is fixedly connected to the position of the second sealing plate inside the U-shaped ventilation cavity. The housing is also provided with a flipping component for driving the two second sealing plates to flip synchronously.

[0010] As a further embodiment of this utility model: the flipping assembly includes a first drive rod, which is fixedly connected to one end of the second closed plate connecting the rotating shaft on one side of the box. A second drive rod is fixedly connected to the position where the second closed plate connecting the rotating shaft on the other side of the box extends out of the box. A synchronous connecting rod is provided between the first drive rod and the second drive rod. The two ends of the synchronous connecting rod are respectively rotatably connected to the first drive rod and the second drive rod. The first drive rod and the second drive rod are arranged in parallel. An electric push rod is rotatably connected to the position of the box above the synchronous connecting rod. The output end of the electric push rod is rotatably connected to the upper end of the second drive rod.

[0011] As a further embodiment of this utility model: the door lock includes a limiting slide, the limiting slide is fixedly connected to both sides of the first sealing plate away from the box body, a sliding rod is slidably connected between the two limiting slides, and inclined hooks are fixedly connected to both ends of the sliding rod. Hook posts matching the inclined hooks are fixedly connected to both sides of the box body near the first sealing plate.

[0012] As a further improvement of this utility model: an observation port is provided on one side of the box, and heat-insulating glass is fixedly connected inside the observation port.

[0013] As a further embodiment of this utility model: a temperature sensor is provided at the lower end of the interior of the box, and a controller is provided on the outer wall of the box near the heat-insulating glass. The drive motor, electric push rod and temperature sensor are all electrically connected to the controller.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model can form a circulating air duct through the U-shaped ventilation cavity, the lower ventilation port and the lower ventilation port, so that the temperature distribution inside the box is more uniform. At the same time, the heat dissipation component can establish an air exchange channel between the box and the outside, so as to quickly dissipate the high temperature inside the box, thereby avoiding the problem of hot air rushing out when taking out electronic products, and improving the cooling speed, avoiding the problem of long waiting time.

[0016] 2. By setting a removable product tray, this utility model makes it convenient for staff to put electronic products in and out, avoiding the problem of needing to manually reach into the test chamber to pick up and put out electronic products in the prior art, making it more convenient to use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the structure of the product tray when it is pulled out in this utility model.

[0019] Figure 3 This is a schematic diagram of the flipping component in this utility model.

[0020] Figure 4 This is a cross-sectional view of the box body in this utility model.

[0021] Figure 5 This is a schematic diagram of the bottom structure of the box in this utility model.

[0022] Figure 6 This is a schematic diagram of the product tray in this utility model.

[0023] Figure 7 This is a cross-sectional view of the ventilation block in this utility model.

[0024] Figure 8 This is a schematic diagram of the internal circulation of hot air in this utility model.

[0025] Figure 9 This is a schematic diagram of the structure of this utility model during heat dissipation.

[0026] The components include: 1. Housing; 2. Controller; 3. Angled hook; 4. Insulated glass; 5. External casters; 6. Limiting slide; 7. First enclosing plate; 8. Hanging post; 9. Product tray; 10. Tray frame; 11. Ventilation hole; 12. First drive rod; 13. Synchronous connecting rod; 14. Second drive rod; 15. Electric push rod; 16. Limiting block; 17. Sliding rod; 18. Upper air outlet; 19. Heating coil; 20. Ventilation block; 21. Temperature sensor; 22. Drive motor; 23. Ventilation frame; 24. Lower vent; 25. Second enclosing plate; 26. Air outlet; 27. U-shaped ventilation cavity; 28. Inner roller; 29. ​​Air inlet; 30. Blades. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-9In this embodiment of the present invention, the high-temperature resistance test chamber for electronic products includes a chamber body 1. Support legs are fixedly connected to the four corners of the lower end face of the chamber body 1. A U-shaped ventilation cavity 27 is provided on the wall of the chamber body 1. A heating component for heating the interior of the chamber body 1 is provided inside the U-shaped ventilation cavity 27. A tray frame 10 is slidably connected inside the chamber body 1. Several product trays 9 are fixedly connected to the upper end of the tray frame 10. Several placement slots for placing electronic products are provided in the product trays 9. Several ventilation holes 11 are provided at the bottom of each placement slot. A first sealing plate 7 is fixedly connected to the side of the tray frame 10 and the product trays 9 away from the chamber body 1. The first sealing plate 7 is provided with a door lock buckle for fixing to the chamber body 1. The first sealing plate 7 is equipped with external casters 5 on both sides of its lower end. The tray frame 10 is equipped with an internal roller 28 on the lower end of the side away from the first sealing plate 7. Limiting blocks 16 are fixedly connected to the lower ends of both sides of the opening of the box 1. The limiting blocks 16 are located between the product tray 9 and the tray frame 10. The product tray 9 can be pulled out by the internal roller 28 and the external casters 5, which makes it convenient to place electronic products. The door lock is used to lock the first sealing plate 7 after the product tray 9 is pushed in, so that the first sealing plate 7 closes the opening of the box 1. The heating component can heat the inside of the box 1 during the test, so that the inside of the box 1 is in a continuous high temperature environment, thereby realizing the high temperature resistance test of the electronic products.

[0029] The heating assembly includes an upper air outlet 18, which is located on the upper surface inside the housing 1 and communicates with a U-shaped ventilation cavity 27. A lower ventilation outlet 24, also communicating with the U-shaped ventilation cavity 27, is located on the lower surface of the housing 1. An electric heating coil 19 is located at the upper vertical section of the U-shaped ventilation cavity 27. A ventilation block 20 is fixedly connected to the U-shaped ventilation cavity 27 below the electric heating coil 19. The ventilation block 20 contains a circulation assembly for circulating hot air. A heat exhaust assembly for discharging hot air from inside the housing 1 is also located at the lower end of the U-shaped ventilation cavity 27. The circulation assembly includes two drive motors 22, which are fixedly connected to the ventilation block 20 on the lower surface of the housing 1. At the lower position, two air ducts are opened in the ventilation block 20. The output shaft of the drive motor 22 is fixedly connected to the drive shaft. Blades 30 are fixedly connected to the position where the drive shaft extends into the air duct. When working, the drive motor 22 drives the blades 30 to rotate. The rotation of the blades 30 generates wind force, which blows the heat generated on the electric heating coil 19 upward to the air outlet 18 and discharges it into the chamber 1 through the air outlet 18 to heat the inside of the chamber 1. At the same time as the blades 30 rotate, a negative pressure zone is generated in the lower ventilation outlet 24, which can draw in the air at the bottom of the chamber 1 and enter the U-shaped ventilation cavity 27 for circulation. The hot air circulation can make the temperature distribution inside the chamber 1 more uniform and avoid the problem of large temperature difference affecting the test results.

[0030] The heat dissipation assembly includes an air outlet 26, which is located on the lower end of the housing 1 away from the ventilation block 20. An air inlet 29 is located on the lower end of the housing 1 near the ventilation block 20. A second sealing plate 25 is rotatably connected to both the air inlet 29 and one side of the U-shaped ventilation cavity 27. A ventilation frame 23, which cooperates with the second sealing plate 25, is fixedly connected to the U-shaped ventilation cavity 27 near the second sealing plate 25. The housing 1 also has a flipping assembly for driving the two second sealing plates 25 to flip synchronously. When it is necessary to adjust the housing... When the heat is dissipated inside the body 1, the heating coil 19 is first turned off to stop the heating. Then, the flipping assembly drives the two second sealing plates 25 to flip, so that the second sealing plates 25 close the ventilation frame 23. At this time, the air outlet 26 and the air inlet 29 are in the open state. Then, under the rotation of the blades 30, the outside air enters from the air inlet 29 and then enters the inside of the box 1 through the U-shaped ventilation cavity 27. Then the air inside the box 1 will be discharged from the air outlet 26. In this way, the heat inside the box 1 can be quickly discharged after the test, avoiding burns to the staff when handling electronic products.

[0031] The flipping assembly includes a first drive rod 12, which is fixedly connected to one end of the second sealing plate 25 connected to the rotating shaft extending out of the housing 1. A second drive rod 14 is fixedly connected to the other end of the second sealing plate 25 connected to the rotating shaft extending out of the housing 1. A synchronous connecting rod 13 is provided between the first drive rod 12 and the second drive rod 14. Both ends of the synchronous connecting rod 13 are rotatably connected to the first drive rod 12 and the second drive rod 14, respectively. The first drive rod 12 and the second drive rod 14 are arranged in parallel. An electric push rod 15 is rotatably connected to the housing 1 above the synchronous connecting rod 13. The output end of the electric push rod 15 is rotatably connected to the upper end of the second drive rod 14. When the second sealing plate 25 needs to be flipped, the electric push rod 15 will push the second drive rod 14 to rotate accordingly. Since the synchronous connecting rod 13, the first drive rod 12, and the second drive rod 14 form a parallelogram structure, the first drive rod 12 will rotate synchronously when the second drive rod 14 rotates, thus driving the two second sealing plates 25 to rotate synchronously by 90 degrees.

[0032] The door lock includes a limiting slide 6, which is fixedly connected to both sides of the first sealing plate 7 away from the box body 1. A sliding rod 17 is slidably connected between the two limiting slides 6. An inclined hook 3 is fixedly connected to both ends of the sliding rod 17. A hook post 8 matching the inclined hook 3 is fixedly connected to both sides of the box body 1 near the first sealing plate 7. When the first sealing plate 7 moves closer to the box body 1, the inclined hook 3 will move upward under the action of the inclined plane. After the first sealing plate 7 is closed in place, the inclined hook 3 will fall and lock onto the hook post 8 under the action of gravity, thereby locking the first sealing plate 7. When unlocking is required, simply pull the sliding rod 17 to move the inclined hook 3 upward.

[0033] An observation port is provided on one side of the enclosure 1, and a heat-insulating glass 4 is fixedly connected inside the observation port. A temperature sensor 21 is provided at the lower end of the interior of the enclosure 1, and a controller 2 is provided on the outer wall of the enclosure 1 near the heat-insulating glass 4. The drive motor 22, the electric push rod 15, and the temperature sensor 21 are all electrically connected to the controller 2. The heat-insulating glass 4 allows staff to observe the electronic equipment inside the enclosure 1 at any time. At the same time, the temperature sensor 21 can monitor the internal temperature of the enclosure 1. When the temperature exceeds the set upper temperature limit, the controller 2 controls the heating component to stop operating. When the temperature is lower than the set lower temperature limit, the heating component restarts. This can control the internal temperature of the enclosure 1 within a certain range and ensure that the high-temperature resistance test of the electronic products can be carried out stably.

[0034] The working principle of this utility model is as follows: In use, the electronic product to be tested is first placed in the product tray 9, and then the product tray 9 is pushed into the housing 1. When the first sealing plate 7 moves towards the housing 1, the inclined hook 3 moves upward under the action of the inclined surface. After the first sealing plate 7 is closed in place, the inclined hook 3 falls down under gravity and locks onto the hook post 8, thus locking the first sealing plate 7. Then, the heating assembly is activated to heat the inside of the housing 1. During heating, the drive motor 22 drives the blades 30 to rotate. The rotation of the blades 30 generates airflow, blowing the heat generated on the heating coil 19 upward through the air outlet 18, and then discharging it into the housing 1 through the air outlet 18 to heat the inside of the housing 1. Simultaneously, the rotation of the blades 30 creates a negative pressure zone at the lower ventilation opening 24, which draws in air from the bottom of the housing 1 and circulates it inside the U-shaped ventilation cavity 27. This hot air circulation keeps the temperature inside the housing 1 warm. The temperature distribution is more uniform. After the test, the heating coil 19 is turned off to stop heating. Then, the flipping component drives the two second sealing plates 25 to flip, so that the second sealing plates 25 close the ventilation frame 23. At this time, the air outlet 26 and the air inlet 29 are open. Then, under the rotation of the blades 30, the outside air enters from the air inlet 29 and then enters the box 1 through the U-shaped ventilation cavity 27. Then, the air inside the box 1 will be discharged from the air outlet 26, so that the heat inside the box 1 can be quickly discharged after the test. After the discharge is completed, the sliding rod 17 is pulled to move the inclined hook 3 upward to unlock it. Then, the product tray 9 is pulled out from the box 1. After being pulled out, the staff can check the condition of the electronic products and then reject the electronic products that fail the high temperature test to ensure that the products can operate stably in high temperature environment after they are put into the market, and to ensure product quality and user safety.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Although this specification describes embodiments, not every embodiment contains only one technical solution. This method of description is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-temperature resistance test chamber for electronic products, comprising a chamber body (1), characterized in that: The lower end face of the box (1) is fixedly connected to four corners of the box. The box (1) is provided with a U-shaped ventilation cavity (27) on the box wall. The U-shaped ventilation cavity (27) is provided with a heating component for heating the inside of the box (1). The box (1) is slidably connected to a tray frame (10). The upper end of the tray frame (10) is fixedly connected to several product trays (9). The product trays (9) are provided with several placement slots for placing electronic products. The bottom of each placement slot is provided with several ventilation holes (11). The tray frame (10) is fixedly connected to the upper end of the tray frame (10). A first sealing plate (7) is fixedly connected to the side of the product tray (9) away from the box (1). The first sealing plate (7) is provided with a door lock buckle that is fixed to the box (1). External casters (5) are installed on both sides of the lower end of the first sealing plate (7). An inner roller (28) is installed on the lower end of the side of the pallet frame (10) away from the first sealing plate (7). Limiting blocks (16) are fixedly connected to the lower ends of both sides of the opening of the box (1). The limiting blocks (16) are located between the product tray (9) and the pallet frame (10).

2. The high-temperature resistance test chamber for electronic products according to claim 1, characterized in that, The heating component includes an upper air outlet (18), which is located on the upper surface inside the housing (1). The upper air outlet (18) is connected to the U-shaped ventilation cavity (27). The lower surface of the housing (1) is provided with a lower ventilation opening (24) connected to the U-shaped ventilation cavity (27). The upper end of the vertical section of the U-shaped ventilation cavity (27) is provided with an electric heating coil (19). A ventilation block (20) is fixedly connected to the U-shaped ventilation cavity (27) below the electric heating coil (19). The ventilation block (20) is provided with a circulation component for circulating hot air. The lower end of the U-shaped ventilation cavity (27) is also provided with a heat exhaust component for exhausting the hot air inside the housing (1).

3. The high-temperature resistance test chamber for electronic products according to claim 2, characterized in that, The circulation component includes two drive motors (22), which are fixedly connected to the lower end face of the housing (1) below the ventilation block (20). The ventilation block (20) has two air ducts. The output shafts of the drive motors (22) are fixedly connected to drive shafts, and blades (30) are fixedly connected to the positions where the drive shafts extend into the air ducts.

4. The high-temperature resistance test chamber for electronic products according to claim 3, characterized in that, The heat dissipation assembly includes an air outlet (26), which is located on the lower end of the housing (1) away from the ventilation block (20). An air inlet (29) is located on the lower end of the housing (1) near the ventilation block (20). A second sealing plate (25) is rotatably connected to both the air inlet (29) and one side of the U-shaped ventilation cavity (27). A ventilation frame (23) that cooperates with the second sealing plate (25) is fixedly connected to the U-shaped ventilation cavity (27) near the second sealing plate (25). The housing (1) is also provided with a flipping assembly for driving the two second sealing plates (25) to flip synchronously.

5. The high-temperature resistance test chamber for electronic products according to claim 4, characterized in that, The flipping assembly includes a first drive rod (12), which is fixedly connected to one end of the second closed plate (25) on one side, through which the connecting shaft passes through the box (1). A second drive rod (14) is fixedly connected to the other side of the box (1), through which the connecting shaft of the second closed plate (25) passes through the box (1). A synchronous connecting rod (13) is provided between the first drive rod (12) and the second drive rod (14). The two ends of the synchronous connecting rod (13) are rotatably connected to the first drive rod (12) and the second drive rod (14) respectively. The first drive rod (12) and the second drive rod (14) are arranged in parallel. An electric push rod (15) is rotatably connected to the box (1) above the synchronous connecting rod (13). The output end of the electric push rod (15) is rotatably connected to the upper end of the second drive rod (14).

6. The high-temperature resistance test chamber for electronic products according to claim 1, characterized in that, The door lock includes a limiting slide (6), which is fixedly connected to both sides of the first sealing plate (7) away from the box (1). A sliding rod (17) is slidably connected between the two limiting slides (6). An inclined hook (3) is fixedly connected to both ends of the sliding rod (17). A hook post (8) matching the inclined hook (3) is fixedly connected to both sides of the box (1) near the first sealing plate (7).

7. The high-temperature resistance test chamber for electronic products according to claim 1, characterized in that, An observation port is also provided on one side of the box (1), and a heat-insulating glass (4) is fixedly connected inside the observation port.

8. The high-temperature resistance test chamber for electronic products according to claim 5, characterized in that, A temperature sensor (21) is provided at the lower end of the interior of the box (1). A controller (2) is provided on the outer wall of the box (1) near the heat-insulating glass (4). The drive motor (22), electric push rod (15) and temperature sensor (21) are all electrically connected to the controller (2).

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