Aging cabinet for power supply

Abstract

The invention belongs to the technical field of power supply aging cabinets, and particularly relates to an aging cabinet for a power supply, which comprises an aging cabinet main body, a plurality of support plates distributed in a matrix manner are arranged in the aging cabinet main body, detection trays are detachably mounted on the support plates, and the detection trays mounted on the support plates are electrically connected with the aging cabinet main body. An air inlet filtering assembly and an exhaust fan are mounted at the top of the aging cabinet main body, the air inlet filtering assembly and the exhaust fan are matched to circulate air inside and outside the aging cabinet main body and keep the inside of the aging cabinet main body at a target temperature, and the air inlet filtering assembly comprises a round box. The positions of the second semicircular filtering part and the third semicircular filtering part are regularly exchanged, back flushing dredging can be carried out after dust is filtered for a period of time, and the back-blown dust is discharged out of the aging cabinet main body again, so that the dust is prevented from entering the aging cabinet main body.

Description

Technical Field

[0001] This invention relates to the field of power supply aging cabinet technology, and more particularly to an aging cabinet for power supplies. Background Technology

[0002] Switching power supplies, as efficient and reliable power converters, are an essential component of modern electronic devices, widely used in computers, communication equipment, industrial automation, and smart grids. In smart grid systems, from smart meters and data acquisition terminals to power monitoring and communication equipment, all rely heavily on switching power supplies for stable, low-loss power conversion. To ensure the reliability and performance of switching power supplies during long-term operation, rigorous aging tests must be conducted before products leave the factory.

[0003] As the core equipment for aging tests, the uniformity of temperature distribution inside the aging chamber is a crucial technical indicator for evaluating equipment performance, directly impacting the aging results of power supply products placed in different areas. Typically, the aging chamber needs to maintain a constant temperature. Therefore, during the aging process, when the internal temperature rises, it needs to exchange with external cool air to achieve cooling. To ensure the cleanliness of the cool air entering the aging chamber and prevent dust contamination of the power supply products and the testing environment, filtration is usually required. However, common filter methods experience a decline in filtration efficiency and permeability after a period of use, necessitating frequent manual maintenance. Given the increasing demands for long-term power supply stability and low maintenance costs in smart grid equipment, existing aging chambers cannot perform normal cool air filtration and exchange during maintenance, thus affecting test continuity and result consistency. Therefore, this paper proposes an aging chamber for power supplies. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, this invention proposes an aging cabinet for power supplies.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an aging cabinet for power supplies, comprising an aging cabinet body, wherein multiple carrier plates are arranged in a matrix within the aging cabinet body, and a test tray is detachably mounted on each carrier plate. The test tray mounted on the carrier plate is electrically connected to the aging cabinet body. An air intake filter assembly and an exhaust fan are installed on the top of the aging cabinet body. The air intake filter assembly and the exhaust fan cooperate to circulate the air inside and outside the aging cabinet body and maintain the target temperature inside the aging cabinet body. The air intake filter assembly includes a circular box, on which an exhaust pipe communicating with the interior of the aging cabinet body is provided. A filter cylinder is movably installed inside the circular box, and an air extraction mechanism is provided inside the filter cylinder.

[0006] Preferably, the testing tray includes a tray body, on which multiple sets of AC sockets and DC sockets are arranged in a linear distribution.

[0007] Preferably, the circular box is provided with an exhaust port, an air inlet 1, and an air inlet 2. The air inlets 1 and 2 are arranged with their openings facing downwards and are distributed on both sides of the exhaust pipe. The exhaust port is located directly above the exhaust pipe. The top inner wall of the aging cabinet body is provided with an air inlet and an air outlet. The exhaust pipe is connected to the air inlet, and the exhaust fan is connected to the air outlet.

[0008] Preferably, the filter cylinder is sealed at both ends, and the filter cylinder is provided with a semi-circular filter part one, a semi-circular filter part two, a semi-circular filter part three, and a semi-circular filter part four. An annular ring is embedded and rotatably installed on the side of the filter cylinder near the air inlet. Two symmetrically distributed electric push rods are fixedly installed through the circular box on the side near the air inlet, and the piston rod ends of the two electric push rods are fixedly connected to the annular ring.

[0009] Preferably, the inner wall of the circular box is provided with multiple spiral guide grooves arranged in a circumferential array, and multiple spiral guide ribs adapted to the multiple spiral guide grooves are fixedly installed on the outer side of the filter cylinder.

[0010] Preferably, a prism is rotatably mounted through the axis of the circular box, a motor is fixedly mounted on the side of the circular box away from the air inlet, the output shaft of the motor is fixedly connected to the end of the prism, the prism passes through the filter cylinder and is movably connected to the filter cylinder, and the air extraction mechanism is slidably sleeved on the prism and rotates synchronously with the prism.

[0011] Preferably, the air extraction mechanism includes a first circular plate, a second circular plate, and an annular plate. The annular plate is located between the first and second circular plates. The first and second circular plates are rotatably connected to the inner walls on both sides of the filter cylinder. A plurality of second centrifugal fan blades arranged in a circumferential array are fixedly installed between the first and the annular plates. A plurality of first centrifugal fan blades arranged in a circumferential array are fixedly installed between the second and the annular plates. The first and second centrifugal fan blades are arranged in opposite directions.

[0012] Preferably, both the first circular plate and the second circular plate have a groove at their center, and the prism passes through the two grooves and is slidably connected to the inner walls of the two grooves.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] This invention achieves alternating switching between filtration and backflushing functions by incorporating two semi-circular filter sections (Self-Circular Filter Section 2 and Semi-Circular Filter Section 3) in the air intake filtration structure of the aging chamber, which can be periodically repositioned. When one set of semi-circular filter sections adsorbs a certain amount of dust under normal air intake filtration conditions, its position is reversed, placing it in the backflushing airflow path. The reverse airflow then cleans the filter media, blowing away the dust adhering to the filter section. Simultaneously, the dust dislodged by the backflushing is directly discharged to the outside of the aging chamber through an independent dust exhaust channel, rather than falling into the interior of the aging chamber or the testing area. This design avoids the problem of decreased air permeability and filtration performance due to filter media clogging, and fundamentally eliminates secondary pollution of the internal environment of the aging chamber and the tested power supply product by dust during the cleaning process.

[0015] Against the backdrop of smart grid equipment placing higher demands on the long-term reliability, test consistency, and low maintenance intervention of power supply products, this invention achieves maintenance-free operation of the filter structure, and does not affect the normal filtration and exchange of cold air during backflushing and unblocking, ensuring the uniformity of temperature and constant temperature control capability inside the aging cabinet, significantly improving the continuity and reliability of aging tests, and reducing the frequency and cost of manual maintenance. It is especially suitable for aging test scenarios of smart grid power supply products with high requirements for cleanliness and operational stability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an aging cabinet for power supplies proposed in this invention.

[0017] Figure 2 This is a partial structural schematic diagram of an aging cabinet for power supplies proposed in this invention.

[0018] Figure 3 This is a schematic diagram of the structure of a test tray in an aging cabinet for power supplies, as proposed in this invention.

[0019] Figure 4 A side view of an air intake filter assembly in an aging cabinet for power supplies, as proposed in this invention. Figure 1 ;

[0020] Figure 5 A side view of an air intake filter assembly in an aging cabinet for power supplies, as proposed in this invention. Figure 2 ;

[0021] Figure 6 This is a schematic diagram of the structure of a filter cartridge for an aging cabinet of a power supply proposed in this invention;

[0022] Figure 7 This is a schematic diagram of the air extraction mechanism in an aging cabinet for power supplies proposed in this invention.

[0023] Figure 8This is a schematic diagram of the operation of an air intake filter assembly in an aging cabinet for power supplies, as proposed in this invention. Figure 1 ;

[0024] Figure 9 This is a schematic diagram of the operation of an air intake filter assembly in an aging cabinet for power supplies, as proposed in this invention. Figure 2 .

[0025] In the diagram: 1. Main body of aging cabinet; 2. Carrier plate; 3. Test tray; 4. Air intake filter assembly; 5. Exhaust fan; 6. Air inlet; 7. Air outlet;

[0026] 31. Tray body; 32. AC socket; 33. DC socket;

[0027] 41. Round box; 411. Exhaust vent; 412. Air inlet one; 413. Air inlet two; 414. Exhaust duct; 415. Spiral guide groove;

[0028] 42. Filter cylinder; 421. Spiral guide rib; 422. Semicircular filter section one; 423. Semicircular filter section two; 424. Semicircular filter section three; 425. Semicircular filter section four;

[0029] 43. Air extraction mechanism; 431. Circular plate one; 432. Circular plate two; 433. Annular plate; 434. Centrifugal fan blade one; 435. Centrifugal fan blade two;

[0030] 44. Prism; 45. Motor; 46. Ring; 47. Electric actuator. Detailed Implementation

[0031] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please refer to Figures 1-9 The present invention provides a technical solution: an aging cabinet for power supply, comprising an aging cabinet body 1, wherein multiple carrier plates 2 are arranged in a matrix within the aging cabinet body 1, and a test tray 3 is detachably mounted on the carrier plate 2. The test tray 3 mounted on the carrier plate 2 is electrically connected to the aging cabinet body 1. An air intake filter assembly 4 and an exhaust fan 5 are installed on the top of the aging cabinet body 1. The air intake filter assembly 4 and the exhaust fan 5 cooperate to circulate the air inside and outside the aging cabinet body 1 and maintain the target temperature inside the aging cabinet body 1. The air intake filter assembly 4 includes a circular box 41, on which an exhaust pipe 414 communicating with the inside of the aging cabinet body 1 is provided. A filter cylinder 42 is movably installed inside the circular box 41, and an air extraction mechanism 43 is provided inside the filter cylinder 42.

[0033] The testing tray 3 includes a tray body 31, on which multiple sets of AC sockets 32 and DC sockets 33 are arranged in a linear pattern.

[0034] The aging cabinet body 1, carrier plate 2, and test tray 3 in this embodiment can refer to the previous generation aging cabinet of Shenzhen Changbao Electromechanical Equipment Co., Ltd. The previous generation aging cabinet has applied for a utility model patent and has been authorized, with application number CN201720550196.0.

[0035] The round box 41 is provided with an exhaust port 411, an air inlet 1 412 and an air inlet 2 413. The air inlets 1 412 and 2 413 are arranged with their openings facing downwards and are distributed on both sides of the exhaust pipe 414. The exhaust port 411 is located directly above the exhaust pipe 414. The top inner wall of the aging cabinet body 1 is provided with an air inlet 6 and an air outlet 7. The exhaust pipe 414 is connected to the air inlet 6 and the exhaust fan 5 is connected to the air outlet 7.

[0036] The filter cylinder 42 is sealed at both ends. The filter cylinder 42 is provided with a semi-circular filter part 1 422, a semi-circular filter part 2 423, a semi-circular filter part 3 424 and a semi-circular filter part 425. An annular ring 46 is embedded and rotatably installed on the side of the filter cylinder 42 near the air inlet 6. Two symmetrically distributed electric push rods 47 are fixedly installed through the round box 41 on the side near the air inlet 6. The piston rod ends of the two electric push rods 47 are fixedly connected to the annular ring 46.

[0037] The inner wall of the circular box 41 is provided with multiple spiral guide grooves 415 arranged in a circular array, and multiple spiral guide ribs 421 adapted to the multiple spiral guide grooves 415 are fixedly installed on the outer side of the filter cylinder 42.

[0038] Furthermore, during the extension and retraction of the two electric actuators 47, the filter cylinder 42 will move along the axis inside the circular box 41 through the annular ring 46. With the cooperation of multiple sets of spiral guide ribs 421 and spiral guide grooves 415, the filter cylinder 42 will rotate during the movement along the axis. During the rotation of the filter cylinder 42 along the axis, the edge of the second air inlet 413 will scrape the outer side of the second semicircular filter section 423, while the edge of the first air inlet 412 will scrape the outer side of the fourth semicircular filter section 425. This ensures that the dust on the outer side of the second semicircular filter section 423 and the fourth semicircular filter section 425 can be cleaned by scraping before backflushing.

[0039] With the cooperation of multiple sets of spiral guide ribs 421 and spiral guide grooves 415, when the filter cartridge 42 is stationary, even if the air pumping mechanism 43 rotates within it, it will not cause the filter cartridge 42 to rotate.

[0040] A prism 44 is rotatably mounted through the axis of the circular box 41. A motor 45 is fixedly mounted on the side of the circular box 41 away from the air inlet 6. The output shaft of the motor 45 is fixedly connected to the end of the prism 44. The prism 44 passes through the filter cylinder 42 and is movably connected to the filter cylinder 42. The air extraction mechanism 43 is slidably sleeved on the prism 44 and rotates synchronously with the prism 44.

[0041] The air extraction mechanism 43 includes a first circular plate 431, a second circular plate 432, and an annular plate 433. The annular plate 433 is located between the first circular plate 431 and the second circular plate 432. The first circular plate 431 and the second circular plate 432 are rotatably connected to the inner walls on both sides of the filter cylinder 42, respectively. A plurality of second centrifugal fan blades 435 arranged in a circumferential array are fixedly installed between the first circular plate 431 and the annular plate 433. A plurality of first centrifugal fan blades 434 arranged in a circumferential array are fixedly installed between the second circular plate 432 and the annular plate 433. The first centrifugal fan blades 434 and the second centrifugal fan blades 435 are arranged in opposite directions.

[0042] Furthermore, such as Figure 7 As shown, during the counterclockwise rotation of the air extraction mechanism 43, multiple counterclockwise rotating centrifugal fan blades 435 can gather external air towards the center and allow the air to pass through the annular plate 433 and enter between the circular plate 432 and the annular plate 433. Multiple counterclockwise rotating centrifugal fan blades 434 can throw the air at the center away from the center.

[0043] like Figure 7 As shown, during the clockwise rotation of the air extraction mechanism 43, multiple clockwise rotating centrifugal fan blades 434 can gather external air towards the center and allow the air to pass through the annular plate 433 and enter between the circular plate 431 and the annular plate 433. Multiple clockwise rotating centrifugal fan blades 435 can throw the air at the center away from the center.

[0044] Both circular plate 431 and circular plate 432 have a ridge groove at their center, and the prism 44 passes through the two ridge grooves and is slidably connected to the inner wall of the two ridge grooves.

[0045] Furthermore, through the cooperation of prism 44 and prism groove, it is ensured that circular plate 431 and circular plate 432 can move along the axis on prism 44, and when prism 44 rotates, circular plate 431 and circular plate 432 can rotate synchronously with prism 44.

[0046] In this embodiment: During testing, the power supply to be aged is connected to the AC socket 32 ​​and DC socket 33 of the same group on the tray body 31 through wires. The AC socket 32 ​​supplies power to the power supply to be aged, and the DC socket 33 performs aging on the power supply to be aged. At this time, a circuit is formed between the aging cabinet body 1, the AC socket 32, the DC socket 33 and the power supply to be aged. If the aging cabinet body 1 detects that the circuit is unobstructed, it indicates that the internal wiring of the power supply to be aged is normally connected. If a short circuit / open circuit is detected, it indicates that the internal wiring of the power supply to be aged is abnormal.

[0047] When the power supply is aged inside the aging cabinet body 1 through the carrier plate 2, the external cold air is filtered and delivered into the aging cabinet body 1 through the air intake filter assembly 4, while the exhaust fan 5 exhausts the hot air inside the aging cabinet body 1, thereby ensuring that the aging cabinet body 1 always maintains a suitable target aging temperature.

[0048] like Figure 4 and Figure 8 As shown, when the filter cartridge 42 is located at the leftmost position inside the circular box 41, the motor 45 and the annular ring 46 drive the air extraction mechanism 43 to rotate counterclockwise. At this time, the counterclockwise rotating centrifugal fan blades 435 draw in the external cold air from the air inlet 413 and after being filtered by the semi-circular filter section 423, it is delivered to the space between the circular plate 432 and the annular plate 433. At this time, the counterclockwise rotating centrifugal fan blades 434 discharge the cold air between the circular plate 432 and the annular plate 433 through centrifugal force and discharge it through the exhaust pipe 414 and the exhaust port 411. The cold air discharged through the exhaust pipe 414 enters the interior of the aging cabinet body 1.

[0049] like Figure 4 and Figure 9 As shown, when the second semicircular filter section 423 filters external cold air for a long time and dust adheres to it, the piston rods of the two electric push rods 47 are controlled to retract. The two electric push rods 47 pull the filter cylinder 42 from the leftmost side to the rightmost side inside the circular box 41 through the annular ring 46. During this process, through the cooperation of multiple sets of spiral guide grooves 415 and spiral guide ribs 421, the filter cylinder 42 will rotate 90 degrees as it moves along the axis. At this time, the second semicircular filter section 423 will flip up and connect with the exhaust port 411, while the third semicircular filter section 424 will flip down and connect with the first air inlet 412. At this time, the motor 45 simultaneously drives the prism 44 to reverse.

[0050] like Figure 4 and Figure 9As shown, the motor 45 drives the prism 44 to rotate clockwise, which will cause the air extraction mechanism 43 to rotate clockwise. When the filter cylinder 42 is located at the rightmost side inside the circular box 41, the motor 45 and the annular ring 46 drive the air extraction mechanism 43 to rotate clockwise. The clockwise rotating centrifugal fan blades 434 draw in the external cold air from the air inlet 412 and after being filtered by the semi-circular filter section 424, it is delivered to the space between the circular plate 431 and the annular plate 433. At this time, the clockwise rotating centrifugal fan blades 435 discharge the cold air between the circular plate 431 and the annular plate 433 through centrifugal force and discharge it through the exhaust pipe 414 and the exhaust port 411. The cold air discharged through the exhaust pipe 414 enters the interior of the aging cabinet body 1, and the other part of the cold air discharged from the exhaust port 411 will back-blown and unclog the semi-circular filter section 423.

[0051] In summary, as the filter cartridge 42 moves back and forth, the cold air discharged from the exhaust port 411 will back-blown and clear the semi-circular filter section 3 424 and the semi-circular filter section 2 423, thereby ensuring that the semi-circular filter section 2 423 and the semi-circular filter section 3 424 remain unobstructed and have a better filtration effect.

[0052] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An aging cabinet for power supplies, comprising an aging cabinet body (1), characterized in that: The aging cabinet body (1) is provided with multiple carrier plates (2) arranged in a matrix. The carrier plates (2) are detachably mounted with test trays (3). The test trays (3) mounted on the carrier plates (2) are electrically connected to the aging cabinet body (1). The top of the aging cabinet body (1) is equipped with an air intake filter assembly (4) and an exhaust fan (5). The air intake filter assembly (4) and the exhaust fan (5) work together to circulate the air inside and outside the aging cabinet body (1) and maintain the target temperature inside the aging cabinet body (1). The air intake filter assembly (4) includes a round box (41). The round box (41) is provided with an exhaust pipe (414) that communicates with the inside of the aging cabinet body (1). The round box (41) is movably installed with a filter cylinder (42). The filter cylinder (42) is provided with an air extraction mechanism (43).

2. The aging cabinet for power supplies according to claim 1, characterized in that: The detection tray (3) includes a tray body (31), on which multiple sets of AC sockets (32) and DC sockets (33) are arranged in a linear distribution.

3. An aging cabinet for a power supply according to claim 1, characterized in that: The round box (41) is provided with an exhaust port (411), an air inlet 1 (412) and an air inlet 2 (413). The air inlets 1 (412) and 2 (413) are arranged with their openings facing downwards and are distributed on both sides of the exhaust pipe (414). The exhaust port (411) is located directly above the exhaust pipe (414). The top inner wall of the aging cabinet body (1) is provided with an air inlet (6) and an air outlet (7). The exhaust pipe (414) is connected to the air inlet (6), and the exhaust fan (5) is connected to the air outlet (7).

4. An aging cabinet for a power supply according to claim 1, characterized in that: The filter cylinder (42) is sealed at both ends. The filter cylinder (42) is provided with a semi-circular filter part one (422), a semi-circular filter part two (423), a semi-circular filter part three (424) and a semi-circular filter part four (425). An annular ring (46) is embedded and rotated on the side of the filter cylinder (42) near the air inlet (6). Two symmetrically distributed electric push rods (47) are fixedly installed through the side of the round box (41) near the air inlet (6). The piston rod ends of the two electric push rods (47) are fixedly connected to the annular ring (46).

5. An aging cabinet for a power supply according to claim 4, characterized in that: The inner wall of the circular box (41) is provided with a plurality of spiral guide grooves (415) arranged in a circular array, and the outer side of the filter cylinder (42) is fixedly installed with a plurality of spiral guide ribs (421) that are adapted to the plurality of spiral guide grooves (415).

6. An aging cabinet for a power supply according to claim 1, characterized in that: A prism (44) is rotatably mounted through the axis of the circular box (41). A motor (45) is fixedly mounted on the side of the circular box (41) away from the air inlet (6). The output shaft of the motor (45) is fixedly connected to the end of the prism (44). The prism (44) passes through the filter cylinder (42) and is movably connected to the filter cylinder (42). The air extraction mechanism (43) is slidably sleeved on the prism (44) and rotates synchronously with the prism (44).

7. An aging cabinet for a power supply according to claim 6, characterized in that: The air extraction mechanism (43) includes a circular plate (431), a circular plate (432), and an annular plate (433). The annular plate (433) is located between the circular plate (431) and the circular plate (432). The circular plate (431) and the circular plate (432) are rotatably connected to the inner walls on both sides of the filter cylinder (42). A plurality of centrifugal fan blades (435) arranged in a circular array are fixedly installed between the circular plate (431) and the annular plate (433). A plurality of centrifugal fan blades (434) arranged in a circular array are fixedly installed between the circular plate (432) and the annular plate (433). The centrifugal fan blades (434) and the centrifugal fan blades (435) are arranged in opposite directions.

8. An aging cabinet for a power supply according to claim 7, characterized in that: Both circular plate one (431) and circular plate two (432) have a ridge groove at their center, and the prism (44) passes through the two ridge grooves and is slidably connected to the inner walls of the two ridge grooves.

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