A switching power supply aging test device facilitating positioning of unqualified products

Abstract

This invention relates to the field of switching power supply technology and discloses an aging test device for switching power supplies that facilitates the location of defective products. The device includes multiple mounting plates, a lifting assembly, and a pressing assembly. Each mounting plate has multiple equidistantly distributed placement housings on its upper surface, and each mounting plate also has a limiting plate at its bottom. Multiple equidistantly distributed rectangular slots are formed between each mounting plate and the limiting plate, with these slots located at the bottom of the placement housings. Each placement housing contains a placement plate. In this invention, the internal reset spring of the lifting assembly drives the placement plate to move upwards along the rectangular slots when a defect is detected or the test ends. Combined with the limiting effect of the limiting plates, this facilitates quick and easy identification of defective products and convenient handling. A voltage sensor monitors the real-time operating status of the switching power supply, ensuring test accuracy. The pressing plate of the pressing assembly automatically presses the connecting wire harness for separation, eliminating the need for manual plugging and unplugging, reducing operational steps, and preventing damage to the interface and wire harness.

Description

Technical Field

[0001] This invention belongs to the field of switching power supply technology, and more specifically, relates to a switching power supply aging test device that facilitates the location of defective products. Background Technology

[0002] As the core power supply component of electronic devices, the stability and reliability of switching power supplies directly affect the performance of end products. Therefore, aging tests are an indispensable and crucial step in the switching power supply production process.

[0003] However, in the existing system, after testing, distinguishing between non-conforming and conforming products relies on manual inspection or displaying the product number on the device and then searching for it. This can easily lead to misjudgment when identifying non-conforming products, and the search is also quite troublesome.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows: A switching power supply aging test device for easy positioning of defective products includes multiple mounting plates, a lifting component, and a pressing component. Each mounting plate has multiple placement housings arranged at equal intervals on its upper part. Each mounting plate also has a limiting plate at its bottom. Multiple rectangular slots are arranged at equal intervals between each mounting plate and the limiting plate, and the rectangular slots are located at the bottom of the placement housing. Each placement housing has a placement plate inside its inner cavity. Each mounting plate also has multiple voltage sensors arranged at equal intervals on its upper part. The mounting plate also has multiple power supplies and connecting wire harnesses arranged at equal intervals. The lifting assembly includes multiple inner reset springs, one end of each inner reset spring is respectively disposed on the inner wall of the rectangular slot, and the inner reset spring is used to drive the placement plate to move upward. A switching power supply body is respectively disposed above each placement plate. The pressing assembly includes multiple pressing plates, each of which is used to press the connecting wire harness.

[0006] In a preferred embodiment of the present invention, each mounting plate is provided with a mounting bracket around its perimeter, and the bottom mounting plate at the bottom is provided with a support leg around its perimeter. The four support legs are symmetrical to each other in pairs, and the four mounting brackets are symmetrical to each other in pairs.

[0007] In a preferred embodiment of the present invention, a plurality of internal reset springs are provided at the bottom of the inner cavity of each rectangular slot, and a magnet is provided at the end of each internal reset spring away from the rectangular slot.

[0008] In a preferred embodiment of the present invention, each of the rectangular slots is further provided with a mounting frame, and each mounting frame has slots on its opposite side walls, and an electromagnet is provided in the slot, and the electromagnet and the magnet attract each other.

[0009] In a preferred embodiment of the present invention, each sliding rod is connected to a magnet at one end of the rectangular slot cavity, each sliding rod moves through the placement housing, each sliding rod has a placement plate at its upper end, each placement plate fits into the placement housing cavity, and the placement plate and placement housing are also provided with an installation slot.

[0010] In a preferred embodiment of the present invention, each of the two opposite outer walls of the placement housing is provided with a movable groove, each movable groove is symmetrical to the other, each movable groove is slidably provided with a movable slider in its inner cavity, each movable slider is symmetrical to the other, each movable slider is provided with an external return spring at its bottom, and one end of each external return spring away from the movable slider is provided in the inner cavity of the movable groove.

[0011] In a preferred embodiment of the present invention, each of the housings is further provided with two mounting blocks on each of its two upper side walls. Each mounting block is symmetrical to the other two. Each mounting block has a connecting plate on one of its opposite side walls. Each connecting plate is symmetrical to the other two. Each connecting plate has a fixing plate on one of its opposite side walls. Each fixing plate is symmetrical to the other two.

[0012] In a preferred embodiment of the present invention, each of the fixed plates has a mounting bearing on one of its two opposite side walls. Each of the mounting bearings is symmetrical to each other. Each of the mounting bearings has a rotating rod inside it. Each of the rotating rods is symmetrical to each other. A rocker plate is provided between each of the rotating rods, and the rocker plate fits onto the top of the switching power supply body.

[0013] In a preferred embodiment of the present invention, each of the rotating rods is provided with a rotating rod at one end, each of the rotating rods is movably inserted through the fixed plate, and each of the rotating rods is provided with a cam at the end away from the rotating rod.

[0014] In a preferred embodiment of the present invention, a drive rod is fitted to the bottom of each cam, a side wall of each drive rod is mounted on a movable slider, a connecting plate is provided at the bottom of the end of each drive rod away from the cam, and a pressing plate is provided between each pair of connecting plates.

[0015] Compared with the prior art, the present invention has the following advantages: This invention utilizes multiple mounting plates paired with equidistantly distributed placement housings to simultaneously support multiple switching power supply units for aging tests, significantly improving testing efficiency. The internal reset spring of the lifting component drives the placement plate to move upward along the rectangular slot when a test fails or ends. Combined with the limiting plate's limiting function, this facilitates quick and easy identification of defective products and convenient handling. A voltage sensor monitors the operating status of the switching power supply unit in real time, ensuring testing accuracy. The pressing plate of the pressing component automatically presses the connecting wire harness to achieve separation, eliminating the need for manual plugging and unplugging, reducing operational steps, and preventing damage to the interface and wire harness.

[0016] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0017] In the attached diagram: Figure 1 A three-dimensional structural diagram of a switching power supply aging test device for easy location of defective products; Figure 2 A schematic diagram of the mounting frame structure for a switching power supply aging test device that facilitates the location of defective products; Figure 3 This is a schematic diagram of the structure above the mounting plate of a switching power supply aging test device that facilitates the location of defective products. Figure 4 A bottom view of the mounting plate structure of a switching power supply aging test device for easy positioning of defective products; Figure 5 A cross-sectional view of the mounting plate of a switching power supply aging test device for easy location of defective products; Figure 6 A schematic diagram of the placement board structure of a switching power supply aging test device for easy positioning of defective products; Figure 7 An aging test device for switching power supplies that facilitates the location of defective products. Figure 6 Enlarged structural diagram at point A in the middle; Figure 8 A cross-sectional view of the mounting frame of a switching power supply aging test device for easy location of defective products; Figure 9 A magnified schematic diagram of the housing structure of a switching power supply aging test device for easy location of defective products; Figure 10 An aging test device for switching power supplies that facilitates the location of defective products. Figure 9 Enlarged structural diagram at point B; Figure 11 An aging test device for switching power supplies that facilitates the location of defective products. Figure 10 Enlarged structural diagram at point C; Figure 12 This is a bottom view of the housing structure of a switching power supply aging test device for easy positioning of defective products.

[0018] In the picture: 1. Mounting bracket; 11. Mounting plate; 12. Support leg; 13. Limiting plate; 14. Rectangular slot; 15. Housing placement; 151. Mounting slot; 16. Switching power supply body; 17. Power supply; 18. Voltage sensor; 19. Connecting harness; 2. Placement plate; 21. Sliding rod; 211. Mounting frame; 212. Magnet; 213. Inner return spring; 214. Electromagnet; 3. Mounting block; 31. Connecting plate; 311. Fixing plate; 312. Mounting bearing; 313. Rotating rod; 32. Rocker; 33. Rotating rod; 331. Cam; 332. Drive rod; 333. Connecting plate; 334. Pressing plate; 34. Moving slide; 341. Moving slider; 342. External return spring. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention.

[0020] Example 1: like Figures 1 to 12As shown, a switching power supply aging test device for easy positioning of defective products includes multiple mounting plates 11, a lifting assembly, and a pressing assembly. Multiple placement housings 15 are equidistantly arranged on top of each mounting plate 11. A limiting plate 13 is also provided at the bottom of each mounting plate 11. Multiple rectangular slots 14 are equidistantly arranged between each mounting plate 11 and the limiting plate 13, with the rectangular slots 14 located at the bottom of the placement housing 15. A placement plate 2 is provided inside the cavity of each placement housing 15. A pressing assembly is also provided on top of each mounting plate 11. There are multiple voltage sensors 18 arranged at equal intervals, and multiple power supplies 17 and connecting wire harnesses 19 arranged at equal intervals are also provided on the mounting plate 11; the lifting assembly includes multiple inner return springs 213, one end of each inner return spring 213 is respectively provided on the inner wall of the rectangular slot 14, and the inner return spring 213 is used to drive the placement plate 2 to move upward. A switching power supply body 16 is respectively provided above each placement plate 2; the pressing assembly includes multiple pressing plates 334, each pressing plate 334 is used to press the connecting wire harness 19. Multiple mounting plates 11, combined with equidistantly distributed placement housings 15, can simultaneously support multiple switching power supply bodies 16 for aging tests, significantly improving testing efficiency. The inner reset spring 213 of the lifting component can drive the placement plate 2 to move upward along the rectangular slot 14 when the test fails or ends. Combined with the limiting effect of the limiting plate 13, it facilitates quick and easy identification of unqualified products and makes picking and placing convenient. The voltage sensor 18 monitors the working status of the switching power supply body 16 in real time, ensuring test accuracy. The pressing plate 334 of the pressing component can automatically press the connecting wire harness 19 to achieve separation without manual plugging and unplugging, reducing operation steps and avoiding damage to the interface and wire harness.

[0021] like Figures 1 to 6 As shown in the specific embodiment, each mounting plate 11 is provided with a mounting bracket 1 around its perimeter, and the bottom mounting plate 11 is provided with support legs 12 around its bottom perimeter. The four support legs 12 are symmetrically arranged in pairs, and the four mounting brackets 1 are also symmetrically arranged in pairs. In this configuration, the mounting brackets 1 are used to fix and support the multi-layer mounting plates 11, forming a multi-layer aging test structure that can simultaneously accommodate multiple sets of switching power supply bodies 16 for batch testing, greatly improving testing efficiency. The support legs 12 are symmetrically distributed under the bottom mounting plate 11, providing a stable support foundation for the entire device, preventing the device from shaking or tipping over due to vibration, center of gravity shift, etc. during the aging test, and ensuring the stability and safety of the test process. The symmetrical layout of the mounting brackets 1 and support legs 12 can also optimize the space utilization of the device, making the placement, wiring, and testing operations of the switching power supply body 16 more orderly and convenient.

[0022] Example 2: The difference between the above embodiments and this embodiment is that: Figures 1 to 8As shown, an aging test device for switching power supplies that facilitates the location of defective products is provided. Each rectangular slot 14 has multiple internal reset springs 213 at its bottom, and a magnet 212 is attached to the end of each internal reset spring 213 furthest from the rectangular slot 14. The multiple internal reset springs 213 are evenly distributed at the bottom of the rectangular slot 14, providing an upward elastic reset force for the magnet 212, sliding rod 21, and placement plate 2. When the electromagnet 214 is de-energized and loses its attraction, the elastic potential energy of the internal reset springs 213 can quickly push the magnet 212 vertically upward, thereby causing the sliding rod 21 and placement plate 2 to move upward synchronously, achieving automatic lifting of the defective switching power supply body 16. This facilitates quick location and identification of defective products by personnel. The even arrangement of multiple springs also ensures balanced force on the magnet 212, avoiding problems such as jamming or offset during the upward movement.

[0023] like Figures 1 to 8 As shown in the specific embodiment, each rectangular slot 14 is further provided with a mounting frame 211 inside. Each mounting frame 211 has slots on its opposite side walls, and an electromagnet 214 is installed inside each slot. The electromagnet 214 and the magnet 212 attract each other. In this configuration, the mounting frame 211 provides a stable mounting carrier for the electromagnet 214, ensuring precise alignment of the electromagnet 214 and the magnet 212, guaranteeing stable and reliable attraction after power-on. When the electromagnet 214 is powered on, it generates magnetic force to attract the magnet 212, fixing the placement plate 2 in the test position. This ensures the switching power supply body 16 remains stable during the aging test, preventing loose power supply connections or test data deviations due to vibration or displacement. After power is cut off, the magnetic force disappears, and the internal reset spring 213 automatically resets and lifts the device. The control logic is simple, and the switching between positioning and reset can be achieved without complex mechanical structures.

[0024] like Figures 1 to 8 As shown, further, each sliding rod 21 has a magnet 212 connected to one end of its inner cavity in the rectangular slot 14. Each sliding rod 21 moves through the placement housing 15, and a placement plate 2 is provided at the upper end of each sliding rod 21. Each placement plate 2 fits into the inner cavity of the placement housing 15, and mounting slots 151 are also provided on the placement plate 2 and the placement housing 15. In this configuration, the sliding rod 21 moves through the placement housing 15, providing vertical guidance for the up-and-down movement of the placement plate 2, limiting the horizontal displacement of the placement plate 2, and ensuring its movement trajectory is accurate and stable. The fit between the placement plate 2 and the inner cavity of the placement housing 15 further improves the movement stability of the placement plate 2, and at the same time, it can provide initial positioning for the switching power supply body 16, preventing the switching power supply body 16 from shaking during testing. The mounting slots 151 provide space for the placement and positioning of the switching power supply body 16, and also provide operating space for the connection of the connecting wire harness 19 to the switching power supply body 16, preventing the wire harness from being squeezed, bent, or damaged, and ensuring the reliability of the power supply connection.

[0025] like Figures 1 to 6 and Figures 9 to 12 As shown, further, each of the opposite outer walls of the housing 15 is provided with a sliding groove 34, each sliding groove 34 is symmetrical to each other, and a sliding block 341 is slidably arranged in the inner cavity of each sliding groove 34, each sliding block 341 is symmetrical to each other, and an external return spring 342 is provided at the bottom of each sliding block 341, with one end of each external return spring 342 away from the sliding block 341 located in the inner cavity of the sliding groove 34. In this configuration, the movable slide 34 provides a vertical sliding guide for the movable slider 341, ensuring that the movable slider 341 drives the drive rod 332 to move smoothly in the vertical direction, avoiding deviation and jamming. The external return spring 342 provides an upward return force for the movable slider 341. When the downward thrust of the cam 331 disappears, the external return spring 342 can quickly push the movable slider 341, drive rod 332 and pressing plate 334 to reset, preparing for the linkage action of the next test. The movable slide 34 and the movable slider 341 are symmetrically arranged, so that the force on both sides of the drive rod 332 is even, further improving the stability and synchronization of the pressing component action.

[0026] Example 3: The difference between the above embodiments and this embodiment is that: Figures 1 to 6 and Figures 9 to 12 As shown, a switching power supply aging test device for easy positioning of defective products is provided. Each housing 15 has two mounting blocks 3 on each of its two upper side walls. Each mounting block 3 is symmetrical to the others. A connecting plate 31 is provided on the opposite side wall of each pair of mounting blocks 3. Each connecting plate 31 is symmetrical to the others. Fixing plates 311 are provided on the opposite side walls of each connecting plate 31. The mounting blocks 3 are symmetrically fixed to the upper sides of the housing 15, providing a stable mounting base for the connecting plates 31 and fixing plates 311, ensuring the accurate and secure positioning of the rocker arm 32's rotational support structure. The symmetrical arrangement of the connecting plates 31 and fixing plates 311 ensures balanced force distribution at the rocker arm 32's rotational support point, improving the stability of the rocker arm 32 during rotation. This installation structure is compact, does not occupy the internal space of the housing 15 for the switching power supply, and facilitates the coordinated operation of the rocker arm 32 with the switching power supply body 16 and the test plug, achieving optimized structural and functional adaptation.

[0027] like Figures 1 to 6 and Figures 9 to 12As shown, in a specific embodiment, each fixed plate 311 has a mounting bearing 312 on each of its two opposite side walls. Each mounting bearing 312 is symmetrical to each other. Each mounting bearing 312 has a rotating rod 313 inside it. Each rotating rod 313 is symmetrical to each other. Each rotating rod 313 has a rocker plate 32 between each pair of rotating rods 313. The rocker plate 32 fits onto the top of the switching power supply body 16. In this setup, the mounting bearing 312 provides low-resistance rotational support for the rotating rod 313, ensuring that the rocker arm 32 can rotate flexibly and sensitively when the switching power supply body 16 moves upward or the test plug is pressed. The rocker arm 32 fits into the upper part of the switching power supply body 16, ensuring that the rocker arm 32 can be accurately pushed to rotate when the switching power supply body 16 moves upward. At the same time, when the test plug is pressed on the surface of the rocker arm 32, the rocker arm 32 can stably bear the pressure of the plug, ensuring that the switching power supply body 16 can supply power for testing normally. The rotation of the rocker arm 32 can synchronously drive the rotating rod 313 to rotate, providing power for the subsequent rotation of the cam 331, realizing the linkage control of "switching power supply lifting, rocker arm rotation, and wiring harness separation", simplifying the device structure and improving the degree of automation.

[0028] like Figures 1 to 6 and Figures 9 to 12 As shown, each rotating rod 313 is further provided with a rotating rod 33 at one end, and each rotating rod 33 is movably inserted through the fixed plate 311. A cam 331 is provided at the end of each rotating rod 33 away from the rotating rod 313. In this configuration, the rotating rod 33 movably inserts through the fixed plate 311, precisely transmitting the rotational motion of the rotating rod 313 to the cam 331, achieving synchronous linkage between the flipping of the rocker 32 and the rotation of the cam 331. The eccentric structure design of the cam 331 can convert the rotational motion into a vertical linear thrust, providing a downward driving force for the drive rod 332. This transmission structure requires no additional power source, relying solely on the flipping of the rocker 32 for drive, reducing device energy consumption. Simultaneously, it boasts high transmission efficiency and fast response, ensuring that the action of the pressing component is synchronized with the lifting action of the switching power supply.

[0029] like Figures 1 to 6 and Figures 9 to 12As shown, each cam 331 is further provided with a drive rod 332 attached to its bottom, and one side wall of each drive rod 332 is provided on the movable slider 341. A connecting plate 333 is provided at the bottom of the end of each drive rod 332 away from the cam 331, and a pressing plate 334 is provided between each pair of connecting plates 333. In this configuration, the drive rod 332 is tightly fitted to the bottom of the cam 331, ensuring that the cam 331 can continuously and stably push the drive rod 332 downward when rotating. The drive rod 332 is connected to the movable slider 341, and with the guidance of the movable slide groove 34, the drive rod 332 moves vertically downward to avoid deviation. The connecting plate 333 synchronously transmits the power of the drive rods 332 on both sides to the pressing plate 334, so that the pressing plate 334 presses the connecting wire harness 19 downward precisely, realizing the quick and reliable separation of the connecting wire harness 19 from the upward-moving switching power supply body 16, avoiding damage to the wire harness, and at the same time keeping the unqualified switching power supply body 16 in a disconnected state, making it easy for staff to remove it directly, improving the convenience and safety of the testing operation.

[0030] The implementation principle of the switching power supply aging test device for easy location of defective products according to the present invention is as follows: First, the operator places the switching power supply body 16, which needs to undergo aging testing, into the inner cavity of the placement housing 15 on the mounting plate 11. Then, the operator connects the connecting wire harness 19 on the power supply 17 to the switching power supply body 16 and presses the placement plate 2, causing the placement plate 2 to move the sliding rod 21 downward, aligning the magnet 212 and the electromagnet 214. The operator then controls the operation of the power supply 17 to supply power to the switching power supply body 16, and the electromagnet 214 works to attract the magnet 212. At the same time, the operator connects the plug of the device to be used to the switching power supply body 16, with the end of the plug pressed against the surface of the rocker plate 32, so that the switching power supply body 16 can work. During operation, the voltage sensor 18 can detect the switching power supply body 16 during the operation process. When the switching power supply body 16 is found to be defective, the power supply body 16 will be de-energized, and the electromagnet 214 will also be de-energized. When the electromagnet 214 is de-energized, it will lose its attraction to the magnet 212. Therefore, the magnet 212 can move vertically upward with the assistance of the inner reset spring 213. When the magnet 212 moves vertically upward, it can push the sliding rod 21 to move vertically upward, thereby pushing the placement plate 2 to move vertically upward. When the placement plate 2 moves vertically upward, it can drive the switching power supply body 16 to move vertically upward. When the switching power supply body 16 moves vertically upward, it can ensure that when a defect is detected, it is easy for the staff to find the defective switching power supply body 16. When the switching power supply body 16 moves vertically upward, it can push the rocker 32 to flip. When the rocker 32 flips, it can push the plug set on the top of the switching power supply body 16 to move, so that the plug can be separated from the switching power supply body 16 (the rocker 32 flips because there are rotating rods 313 at both ends of the rocker 32, and there are mounting bearings 312 on the rotating rods 313, so as to ensure that the rocker 32 can rotate when it is under force). When the rocker arm 32 rotates, it drives the rotating rod 313 to rotate, which in turn drives the rotating rod 33 to rotate. When the rotating rod 33 rotates, it drives the cam 331 to rotate. When the cam 331 rotates, it pushes the drive rod 332 to move vertically downward with the assistance of the moving slide 34 and the moving slider 341. When the drive rod 332 moves downward, it drives the connecting plate 333 to move vertically downward. When the connecting plate 333 moves vertically downward, it drives the pressing plate 334 to move vertically downward. Therefore, the pressing plate 334 can press the connecting wire harness 19, separating it from the upward-moving switching power supply body 16. This ensures that when a defective product is detected, the staff can directly remove the switching power supply body 16. When the test is completely successful, the staff will cut off the power supply 17, so that the electromagnet 214 loses its magnetic force, thus completing the above steps and making it easy for the staff to remove the switching power supply body 16 directly.

[0031] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A switching power supply aging test device for easy positioning of defective products, comprising multiple mounting plates (11), a lifting assembly, and a pressing assembly, characterized in that: Each mounting plate (11) is provided with a plurality of equally spaced placement housings (15) above it. Each mounting plate (11) is also provided with a limiting plate (13) at its bottom. Each mounting plate (11) and the limiting plate (13) are provided with a plurality of equally spaced rectangular slots (14), and the rectangular slots (14) are located at the bottom of the placement housing (15). Each placement housing (15) is provided with a placement plate (2) in its inner cavity. Each mounting plate (11) is also provided with a plurality of equally spaced voltage sensors (18) above it. The mounting plate (11) is also provided with a plurality of equally spaced power supplies (17) and connecting wire harnesses (19). The lifting assembly includes multiple inner reset springs (213), one end of each inner reset spring (213) is respectively disposed on the inner wall of the rectangular slot (14), and the inner reset spring (213) is used to drive the placement plate (2) to move upward. A switching power supply body (16) is respectively disposed above each placement plate (2). The pressing assembly includes multiple pressing plates (334), each of which is used to press the connecting wire harness (19).

2. The switching power supply aging test device for facilitating the location of defective products according to claim 1, characterized in that, Each of the mounting plates (11) is provided with a mounting bracket (1) around its perimeter, and the bottom of the mounting plate (11) is provided with a support leg (12) around its perimeter. The four support legs (12) are symmetrical to each other in pairs, and the four mounting brackets (1) are symmetrical to each other in pairs.

3. The switching power supply aging test device for facilitating the location of defective products according to claim 1, characterized in that, Each of the rectangular slots (14) has multiple inner reset springs (213) at the bottom of its inner cavity, and each inner reset spring (213) has a magnet (212) at one end away from the rectangular slot (14).

4. The switching power supply aging test device for facilitating the location of defective products according to claim 3, characterized in that, Each of the rectangular slots (14) is further provided with an installation frame (211). Each of the two opposite side walls of the installation frame (211) is provided with a slot, and an electromagnet (214) is provided in the slot. The electromagnet (214) and the magnet (212) attract each other.

5. The switching power supply aging test device for facilitating the location of defective products according to claim 3, characterized in that, Each of the rectangular slots (14) is also provided with a sliding rod (21) in its inner cavity, and a magnet (212) is provided at one end of the sliding rod (21). Each sliding rod (21) moves through the placement housing (15). Each sliding rod (21) is provided with a placement plate (2) at its upper end. Each placement plate (2) fits into the inner cavity of the placement housing (15), and an installation slot (151) is also provided on the placement plate (2) and the placement housing (15).

6. The switching power supply aging test device for facilitating the location of defective products according to claim 5, characterized in that, Each of the two opposite outer walls of the housing (15) is provided with a sliding groove (34), each sliding groove (34) is symmetrical to each other, and a sliding block (341) is slidably arranged in the inner cavity of each sliding groove (34), each sliding block (341) is symmetrical to each other, and an external return spring (342) is provided at the bottom of each sliding block (341), with one end of each external return spring (342) away from the sliding block (341) located in the inner cavity of the sliding groove (34).

7. The switching power supply aging test device for facilitating the location of defective products according to claim 5, characterized in that, Each of the housings (15) is also provided with two mounting blocks (3) on each of the two upper side walls. Each mounting block (3) is symmetrical to each other. Each mounting block (3) has a connecting plate (31) on one side wall opposite to each other. Each connecting plate (31) is symmetrical to each other. Each connecting plate (31) has a fixing plate (311) on one side wall opposite to each other. Each fixing plate (311) is symmetrical to each other.

8. The switching power supply aging test device for facilitating the location of defective products according to claim 7, characterized in that, Each of the fixed plates (311) has a mounting bearing (312) on each of its two opposite side walls. Each of the mounting bearings (312) is symmetrical to each other. Each of the mounting bearings (312) has a rotating rod (313) inside it. Each of the rotating rods (313) is symmetrical to each other. Each of the rotating rods (313) has a rocker plate (32) between each pair of them. The rocker plate (32) fits above the switching power supply body (16).

9. The switching power supply aging test device for facilitating the location of defective products according to claim 8, characterized in that, Each of the rotating rods (313) has a rotating rod (33) at one end, and each of the rotating rods (33) is movably inserted through the fixed plate (311). Each of the rotating rods (33) has a cam (331) at the end away from the rotating rod (313).

10. A switching power supply aging test device for facilitating the location of defective products according to claim 9, characterized in that, Each cam (331) has a drive rod (332) attached to its bottom. One side wall of each drive rod (332) is mounted on the movable slider (341). A connecting plate (333) is provided at the bottom of the end of each drive rod (332) away from the cam (331). A pressing plate (334) is provided between each pair of connecting plates (333).

Images