An electrical power drawer cabinet detection device

Abstract

The application belongs to the technical field of electric power drawer cabinet, and particularly relates to an electric power drawer cabinet detection device, which comprises a cabinet body, a heat dissipation part, a moisture absorption mechanism, a control mechanism, a back blowing mechanism and a protection mechanism. The cabinet body comprises a mounting box and a frame shell with a built-in detection module, and the mounting box is fixedly installed on the side wall of the frame shell. The heat dissipation part comprises an air suction fan and a mounting cylinder, the mounting cylinder is fixedly installed on the inner wall of the mounting box and extends to the inside of the frame shell at one end, and the air suction fan is fixedly installed on the inner wall of the mounting cylinder. The moisture absorption mechanism comprises a bearing cylinder and a storage cylinder, the storage cylinder is of a hollow structure and is elastically installed on the inner wall of the bearing cylinder, and the bearing cylinder is rotatably installed on the inner wall of the mounting box. The control mechanism is used for controlling the bearing cylinder to rotate along the axis thereof. Air dehumidification is completed through the cooperation of the above-mentioned structures, so that the entry of humid air into the cabinet body is avoided, the electronic components are prevented from being damaged due to dampness, the maintenance workload is significantly reduced, and the continuous high-efficiency moisture absorption capacity of the drying agent is ensured.

Description

Technical Field

[0001] This invention belongs to the field of power drawer cabinet technology, specifically a power drawer cabinet testing device. Background Technology

[0002] As a key power distribution device in the power system, the electronic components inside the power drawer cabinet generate heat during operation and need to be kept at a suitable operating temperature through a heat dissipation system. However, the exchange of air between the inside of the cabinet and the outside air during the heat dissipation process inevitably introduces moisture. Excessive humidity will accelerate the aging of electronic components, reduce insulation performance, and even cause safety accidents.

[0003] For example, CN118712902B discloses a power cabinet with an adjustment function, which includes a cabinet body, a fixed cylinder and a sliding cylinder. The power cabinet with an adjustment function described in this technology allows the airflow drying component to absorb the moisture in the airflow in a timely manner during the process of the external airflow flowing through the sliding cylinder into the cabinet body in a high humidity environment.

[0004] Currently, the common method for humidity control is to place solid desiccants at the air inlet of the cabinet to remove moisture from the air through physical adsorption. However, as the amount of moisture absorbed increases, the desiccant particles are prone to sticking together due to the bridging effect of water molecules, forming clumps. After clumping, the internal pore structure of the desiccant is destroyed, the effective moisture absorption area is greatly reduced, and the moisture absorption efficiency drops sharply. At the same time, clumping may also block the air circulation channel, affect the heat dissipation effect, and further aggravate the deterioration of the environment inside the cabinet.

[0005] Therefore, the present invention provides a power drawer cabinet testing device. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: the power drawer cabinet detection device of the present invention includes a cabinet body, a heat dissipation part, a moisture absorption mechanism, a control mechanism, a back-blowing mechanism and a protective mechanism;

[0008] The cabinet includes a mounting box and a frame shell with a built-in detection module. The mounting box is fixedly installed on the side wall of the frame shell.

[0009] The heat dissipation unit includes an exhaust fan and a mounting cylinder. The mounting cylinder is fixedly installed on the inner wall of the mounting box, and one end extends into the interior of the frame shell. The exhaust fan is fixedly installed on the inner wall of the mounting cylinder.

[0010] The moisture absorption mechanism includes a carrier cylinder and a storage cylinder. The storage cylinder has a hollow structure and is flexibly installed on the inner wall of the carrier cylinder. The carrier cylinder is rotatably installed on the inner wall of the mounting box.

[0011] The control mechanism is used to control the rotation of the bearing cylinder along its own axis;

[0012] The backflush mechanism includes an adjustment box and a transfer ring. The inner cavity of the adjustment box is connected to the inner cavity of the storage cylinder through the transfer ring, and the inner wall of the transfer ring slides against the outer wall of the bearing cylinder.

[0013] The protective mechanism is used to close the port of the bearing cylinder according to the rotation of the bearing cylinder.

[0014] Preferably, an ear plate is fixedly installed on the axial end of the storage cylinder, a connecting pin is slidably installed inside the ear plate, an elastic element for connecting with the ear plate is fixedly installed on the outer wall of the connecting pin, and one end of the connecting pin passes through the ear plate and is fixedly connected to the axial outer wall of the bearing cylinder.

[0015] An extension pocket is fixedly installed on the inner wall of the storage cylinder. The inner cavity of the extension pocket is connected to the inner cavity of the storage cylinder, and multiple extension pockets are evenly arranged in a ring along the axis of the storage cylinder.

[0016] Preferably, the control mechanism includes a drive motor, a drive wheel, and a driven ring. The drive motor is fixedly mounted on the outer wall of the mounting box, and the power output shaft of the drive motor extends into the inner cavity of the mounting box and is fixedly connected to the axial end center position of the drive wheel. The driven ring is fixedly mounted on the radial outer wall of the bearing cylinder, and the drive wheel and the driven ring mesh with each other.

[0017] Preferably, a control plug is elastically installed in the inner cavity of the regulating box, and a one-way air inlet and exhaust nozzle are provided at the bottom of the control plug, with the air inlet and exhaust nozzle having opposite directions of conduction.

[0018] The inner wall of the mounting box is fixedly installed with a connecting pipe. The exhaust nozzle is connected to the connecting pipe through a conduit. The bottom of the connecting pipe is fixedly connected to the outer wall of the adapter ring, and the inner cavities are interconnected.

[0019] Preferably, the output shaft of the drive motor is fixedly mounted with a transmission disc, and a connecting rod is rotatably mounted on the outer wall of the transmission disc. The end of the connecting rod away from the transmission disc is rotatably connected to the bottom surface of the control plug.

[0020] A guide shaft is fixedly installed on the bottom surface of the control plug, and the outer wall of the guide shaft slides against the inner wall of the regulating box.

[0021] Preferably, a sealing plate is fixedly installed on the inner wall of the storage cylinder, and the sealing plate is symmetrically arranged on both sides of the extension pocket;

[0022] An elastic plate is fixedly installed on the inner wall of the storage cylinder, and the other end of the elastic plate extends obliquely to the inner wall of the extension pocket and is set in an arc shape.

[0023] A barrier layer is fixedly installed at the connection point between the inner cavity of the storage cylinder and the inner cavity of the adapter ring.

[0024] Preferably, a support frame is fixedly installed on the inner wall of the outer casing, a connecting shaft is fixedly installed on the outer wall of the support frame, a support plate is fixedly installed on the axial end of the connecting shaft, a force-bearing frame is fixedly installed on the inner wall of the storage cylinder, a force-bearing protrusion is fixedly installed on the outer wall of the support plate, multiple force-bearing protrusions are evenly arranged in a ring along the axis of the connecting shaft, and a pressing block for pressing the force-bearing protrusions is fixedly installed on the outer wall of the force-bearing frame.

[0025] Preferably, the protective mechanism includes a barrier plate, a barrier frame, and a limiting block;

[0026] The baffle plate is movably set on the radial outer wall of the connecting shaft, and the baffle frame is fixedly installed on the inner wall of the bearing cylinder. The edge of the baffle plate has a fan-shaped structure, and the outer wall of the baffle frame has a fan-shaped hole that matches the baffle plate.

[0027] The limiting block is fixedly installed on the outer wall of the barrier frame, and the outer wall of the barrier plate has a notch that matches the limiting block.

[0028] Preferably, an elastic strip is fixedly installed on the inner wall of the barrier plate, and multiple elastic strips are evenly arranged in a ring along the axis of the connecting shaft. A friction plate is fixedly installed on the end of the elastic strip away from the barrier plate, and the outer wall of the friction plate slides against the outer wall of the connecting shaft.

[0029] The beneficial effects of this invention are as follows:

[0030] 1. This invention utilizes the coordinated operation of an exhaust fan and a dehumidification mechanism. When the temperature inside the outer casing is detected to be too high, the exhaust fan activates to expel hot air and introduce outside air. Simultaneously, it drives the desiccant inside the storage cylinder to slide and rotate back and forth. By shaking, the contact area between the desiccant and the air is increased, achieving not only cooling but also simultaneous dehumidification. This prevents humid air from entering the cabinet and causing damage to electronic components. This temperature and humidity linkage control mechanism ensures that the environment inside the cabinet is always maintained within the suitable operating range for electronic components, effectively improving the stability and reliability of the power drawer cabinet and reducing equipment failures caused by abnormal temperature and humidity.

[0031] 2. This invention achieves automatic desiccant regeneration through a combined motion design of a back-blowing mechanism and a storage cylinder. When the desiccant's moisture absorption efficiency decreases, the back-blowing mechanism blows air into the storage cylinder after the bearing cylinder port is sealed. Simultaneously, the storage cylinder rotates along the axis and slides back and forth, causing the desiccant to continuously tumble under the action of airflow, breaking up the accumulated layers and disintegrating the clumps. This allows the airflow to penetrate the desiccant from all directions, quickly removing moisture. At the same time, there is no need for manual disassembly and replacement of the desiccant. Automatic air drying and regeneration can extend the service life of the silica gel desiccant. Compared with traditional manual maintenance methods, this significantly reduces maintenance workload while ensuring that the desiccant maintains its high-efficiency moisture absorption capacity, ensuring that the cabinet remains in a dry environment for a long time. Attached Figure Description

[0032] The invention will now be further described with reference to the accompanying drawings.

[0033] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0034] Figure 2 This is a schematic diagram of the installation of the exhaust fan of the present invention;

[0035] Figure 3 This is a schematic diagram of the internal structure of the mounting box in this invention;

[0036] Figure 4 This is a schematic diagram of the installation of the storage cylinder in this invention;

[0037] Figure 5 This is a schematic diagram of the internal structure of the storage cylinder in this invention;

[0038] Figure 6 This is a schematic diagram of the internal structure of the regulating box in this invention;

[0039] Figure 7 This is a schematic diagram of the barrier frame in this invention;

[0040] Figure 8 This is a schematic diagram of the installation of the force-bearing protrusion in this invention;

[0041] Figure 9 This is a schematic diagram of the friction plate in this invention.

[0042] In the diagram: 1. Frame housing; 2. Exhaust fan; 3. Mounting box; 4. Drive motor; 5. Extension pocket; 6. Storage cylinder; 7. Bearing cylinder; 8. Support frame; 9. Barrier frame; 10. Adjustment box; 11. Connecting pipe; 12. Guide shaft; 13. Adapter ring; 14. Connecting pin; 15. Sealing plate; 16. Barrier layer; 17. Elastic plate; 18. Transmission disc; 19. Connecting rod; 20. Control plug; 21. Force-bearing frame; 22. Force-bearing protrusion; 23. Limiting block; 24. Barrier plate; 25. Support disc; 26. Friction plate; 27. Connecting shaft; 28. Elastic strip; 29. ​​Top pressure block; 30. Mounting cylinder. Detailed Implementation

[0043] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0044] like Figures 1 to 9 As shown in the figure, an electrical drawer cabinet testing device according to an embodiment of the present invention includes a cabinet body, a heat dissipation section, a moisture absorption mechanism, a control mechanism, a back-blowing mechanism, and a protective mechanism;

[0045] The cabinet includes a mounting box 3 and a frame shell 1 with a built-in detection module. The mounting box 3 is fixedly installed on the side wall of the frame shell 1. The frame shell 1 is the frame of the power drawer cabinet. The detection module is used to monitor the internal humidity and temperature in real time.

[0046] In addition, a data acquisition module and a data processing module are installed inside the frame housing 1. The core component of the data processing module is the RN8302 metering dedicated chip. The RN8302 provides the effective values ​​of full-wave, fundamental, and harmonic three-phase voltage and current, with a measurement error of <0.2% within a dynamic range of 2000:1; provides the apparent power of full-wave and fundamental active, reactive, RMS, and PQS, with a measurement error of <0.1% within a dynamic range of 2000:1; provides the full-wave and fundamental power factor, with a measurement error of <0.2%; provides the voltage line frequency, with a measurement error of <0.02%; and provides 6 phase angles, with a measurement error of <0.02°. The network communication module is the CH392 Ethernet protocol stack chip. The CH392 chip has a built-in 10M Ethernet media transmission layer (MAC) and physical layer (PHY), is fully compatible with the IEEE 802.3 protocol, and has built-in Ethernet protocol stack firmware such as IP, DHCP, ARP, ICMP, IGMP, UDP, and TCP to complete Ethernet communication of data.

[0047] The heat dissipation unit includes an exhaust fan 2 and a mounting cylinder 30. The mounting cylinder 30 is fixedly installed on the inner wall of the mounting box 3, and one end extends into the interior of the frame housing 1. The exhaust fan 2 is fixedly installed on the inner wall of the mounting cylinder 30, and the other end of the mounting cylinder 30 extends into the outer side of the mounting box 3. When the detection module detects that the internal temperature of the frame housing 1 is too high (the temperature threshold is set according to the specific internal electronic component operating temperature), the exhaust fan 2 draws in the air inside the frame housing 1 and discharges it, and the external air enters the frame housing 1, thereby reducing the internal temperature of the frame housing 1.

[0048] The moisture absorption mechanism includes a carrier cylinder 7 and a storage cylinder 6. The storage cylinder 6 is a hollow structure and is elastically installed on the inner wall of the carrier cylinder 7. The cavity inside the storage cylinder 6 is used to store desiccant (the desiccant is silica gel desiccant granules that can be reused after air drying). At the same time, the storage cylinder 6 can slide back and forth along the axial direction of the carrier cylinder 7. The storage cylinder 6 is made of breathable material, and in this embodiment, a cardboard cylinder is selected.

[0049] The support cylinder 7 is rotatably installed on the inner wall of the mounting box 3, and the other end of the support cylinder 7 is connected to the external space, thereby realizing the communication between the inner cavity of the frame shell 1 and the external space. When the exhaust fan 2 is working, the external air enters the inner cavity of the frame shell 1 through the support cylinder 7 to achieve cooling.

[0050] The control mechanism controls the rotation of the carrier cylinder 7 along its own axis. When the exhaust fan 2 is working, external air enters the inner cavity of the frame shell 1 through the inner cavity of the storage cylinder 6, dehumidifying the air. The control mechanism controls the storage cylinder 6 to slide back and forth along the axis of the carrier cylinder 7. At the same time, the carrier cylinder 7 rotates along its own axis, driving the storage cylinder 6 to rotate. The two mechanisms work together to control the shaking of the desiccant. The shaking causes the desiccant particles to rub against each other and shift, breaking the stacked structure and increasing the contact area with the air. This exposes more adsorption surface for the particles that were originally wrapped. At the same time, it allows the particles to take turns contacting the high-humidity air, preventing the silica gel at the inlet from becoming saturated too early and improving the overall utilization rate. In addition, mechanical force can be used to break the adhesion between the particles after moisture absorption, preventing clumping and blocking the air passage, maintaining the particles in a loose state, ensuring smooth air circulation, and optimizing dehumidification efficiency.

[0051] In addition, while the storage cylinder 6 rotates along its own axis, it also slides back and forth along the axis of the bearing cylinder 7. This combined motion allows the agglomerated desiccant inside the storage cylinder 6 to be subjected to both the impact force from the axial reciprocating sliding and the centrifugal friction force generated by the rotation. The two mechanical forces superimposed on each other can more effectively break the agglomerated structure formed by the moisture absorption and adhesion of the silica gel particles.

[0052] The backflush mechanism includes an adjustment box 10 and a transition ring 13. The inner cavity of the adjustment box 10 is connected to the inner cavity of the storage cylinder 6 through the transition ring 13. The inner wall of the transition ring 13 is slidably attached to the outer wall of the support cylinder 7. A through hole is provided on the outer wall of the storage cylinder 6 and the support cylinder 7 to connect the inner cavity of the transition ring 13. By compressing the inner cavity space of the adjustment box 10, the air inside the adjustment box 10 is discharged into the inner cavity of the storage cylinder 6 through the transition ring 13, thereby blowing air toward the desiccant.

[0053] The protective mechanism is used to seal the port of the carrier cylinder 7 according to the rotation of the carrier cylinder 7. As the desiccant absorbs moisture, the moisture absorption efficiency of the desiccant gradually decreases. At this time, the end of the carrier cylinder 7 located inside the outer shell 1 is sealed. Then, air is blown into the storage cylinder 6 through the regulating box 10. The airflow carries away the moisture inside the desiccant, thereby maintaining the moisture absorption quality of the desiccant. Compared with manual periodic maintenance, it can reduce the workload. It should be noted that when blowing air into the desiccant, it is necessary to wait for the outside air to dry to prevent the desiccant from continuously absorbing moisture.

[0054] In addition, when the desiccant dehumidifies the air entering the inner cavity of the frame shell 1, the storage cylinder 6 rotates along its own axis while sliding back and forth along the axis of the bearing cylinder 7. This movement mode can pre-break the agglomerates before the desiccant is regenerated and dried, preventing the moisture inside the agglomerates from being difficult to drain during drying. This ensures the moisture absorption efficiency during subsequent air drying and regeneration and reuse. When the desiccant itself is dried, the desiccant particles are continuously tumbling and displacing, breaking the accumulation layer that occurs during air drying. This allows the airflow to penetrate the desiccant filling space in all directions, maintaining the desiccant's drying and dehumidification efficiency. These two processes complement each other.

[0055] An ear plate is fixedly installed at the axial end of the storage cylinder 6. A connecting pin 14 is slidably installed inside the ear plate. An elastic element, which is a spring, is fixedly installed on the outer wall of the connecting pin 14 for connecting with the ear plate.

[0056] One end of the connecting pin 14 passes through the ear plate and is fixedly connected to the axial outer wall of the bearing cylinder 7. After the connecting pin 14 is connected to the bearing cylinder 7, the spring force keeps pressing the ear plate, realizing the sliding connection between the storage cylinder 6 and the bearing cylinder 7. After the storage cylinder 6 slides, the spring force controls the storage cylinder 6 to reset, so that the storage cylinder 6 can slide back and forth along the axis of the bearing cylinder 7.

[0057] An extension pocket 5 is fixedly installed on the inner wall of the storage cylinder 6. The extension pocket 5 is made of breathable material, with one end located inside the storage cylinder 6. When airflow passes through, it increases the contact area between the air and the desiccant, thereby improving the moisture absorption efficiency.

[0058] The inner cavity of the extension pocket 5 is interconnected with the inner cavity of the storage cylinder 6, and multiple extension pockets are evenly arranged in a ring along the axis of the storage cylinder 6 to further increase the contact area between the desiccant and the air. It should be noted that in order to make the desiccant shake when the storage cylinder 6 moves, the filling amount of the desiccant in this embodiment is no more than 70% of the volume of the storage cylinder 6, so as to reserve space for the desiccant to shake.

[0059] In a preferred embodiment of the present invention, the control mechanism includes a drive motor 4, a drive wheel, and a driven ring, wherein the drive wheel is a gear and the driven ring is a gear ring.

[0060] The drive motor 4 is fixedly installed on the outer wall of the mounting box 3. The power output shaft of the drive motor 4 extends into the inner cavity of the mounting box 3 and is fixedly connected to the center position of the axial end of the drive wheel. The drive wheel is controlled to rotate by the drive motor 4. The driven ring is fixedly installed on the radial outer wall of the bearing cylinder 7. The drive wheel and the driven ring mesh with each other. During the rotation of the drive wheel, the bearing cylinder 7 is controlled to rotate by the driven ring.

[0061] A control plug 20 is elastically installed in the inner cavity of the regulating box 10, and the outer wall of the control plug 20 is sealed and fitted to the inner wall of the regulating box 10.

[0062] The bottom of the control plug 20 is provided with a one-way air inlet and an air outlet. The air inlet and the air outlet are in opposite directions. When the control plug 20 slides back and forth, external air enters the inner cavity of the regulating box 10 through the air inlet, and the air in the inner cavity of the regulating box 10 is discharged through the air outlet.

[0063] The inner wall of the mounting box 3 is fixedly installed with a connecting pipe 11. The exhaust nozzle is connected to the connecting pipe 11 through a conduit. The bottom of the connecting pipe 11 is fixedly connected to the outer wall of the adapter ring 13, and the inner cavities are interconnected. By controlling the reciprocating sliding of the control plug 20, the external air is controlled to enter the adapter ring 13 and then discharged into the inner cavity of the storage cylinder 6, thereby achieving the effect of drying the desiccant.

[0064] In a preferred embodiment of the present invention, a transmission disk 18 is fixedly mounted on the output shaft of the drive motor 4. The drive motor 4 controls the rotation of the transmission disk 18. A connecting rod 19 is rotatably mounted on the outer wall of the transmission disk 18. One end of the connecting rod 19 away from the transmission disk 18 is rotatably connected to the bottom surface of the control plug 20. During the rotation of the transmission disk 18, the connecting rod 19 drives the control plug 20 to slide back and forth, thereby controlling the gas to pass through the desiccant.

[0065] To improve the stability of the sliding of the control plug 20, a guide shaft 12 is fixedly installed on the bottom surface of the control plug 20. The outer wall of the guide shaft 12 slides against the inner wall of the regulating box 10 to prevent the control plug 20 from tilting, thereby improving the stability of the sliding of the control plug 20 and maintaining the quality of air delivery.

[0066] A sealing plate 15 is fixedly installed on the inner wall of the storage cylinder 6. The sealing plate 15 is symmetrically arranged on both sides of the extension pocket 5. The sealing plate 15 divides the inside of the storage cylinder 6 into a fan-shaped chamber, thereby preventing the desiccant inside the storage cylinder 6 from being all at the bottom of the storage cylinder 6 during the rotation of the storage cylinder 6, and keeping the desiccant as evenly distributed as possible.

[0067] An elastic plate 17 is fixedly installed on the inner wall of the storage cylinder 6. The other end of the elastic plate 17 extends obliquely to the inner wall of the extension pocket 5 and is set in an arc shape. The elastic plate 17 is an elastic copper plate. When the storage cylinder 6 slides back and forth, the movement of the desiccant is disturbed by the setting of the elastic plate 17, thereby turning the desiccant over and further improving the efficiency of the desiccant movement, thereby improving the drying efficiency of the drying air and the desiccant itself.

[0068] A barrier layer 16 is fixedly installed at the position where the inner cavity of the storage cylinder 6 communicates with the inner cavity of the adapter ring 13. The barrier layer 16 is made of sponge material and is used to prevent desiccant particles from entering the interior of the adapter ring 13.

[0069] In a preferred embodiment of the present invention, a support frame 8 is fixedly installed on the inner wall of the frame shell 1, and a connecting shaft 27 is fixedly installed on the outer wall of the support frame 8. The axis of the connecting shaft 27 coincides with the axis of the bearing cylinder 7.

[0070] A support plate 25 is fixedly installed at the axial end of the connecting shaft 27, a force-bearing frame 21 is fixedly installed on the inner wall of the storage cylinder 6, and a force-bearing protrusion 22 is fixedly installed on the outer wall of the support plate 25. Multiple force-bearing protrusions 22 are evenly arranged in a ring along the axis of the connecting shaft 27. When the bearing cylinder 7 and the storage cylinder 6 rotate, the support plate 25 remains fixed.

[0071] The outer wall of the load-bearing frame 21 is fixedly equipped with a pressing block 29 for pressing the force-bearing protrusion 22. When the bearing cylinder 7 and the storage cylinder 6 rotate, the pressing block 29 presses the force-bearing protrusion 22, which, in conjunction with the elastic force received by the storage cylinder 6, controls the reciprocating sliding of the storage cylinder 6.

[0072] The protective mechanism includes a barrier plate 24, a barrier frame 9, and a limiting block 23. The barrier plate 24 is movably disposed on the radial outer wall of the connecting shaft 27, and the barrier frame 9 is fixedly installed on the inner wall of the bearing cylinder 7. The barrier frame 9 rotates synchronously when the bearing cylinder 7 rotates.

[0073] The edge of the baffle plate 24 is a fan-shaped structure. The outer wall of the baffle frame 9 has a fan-shaped hole that matches the baffle plate 24. After the baffle plate 24 is rotated, the baffle plate 24 closes the fan-shaped hole on the outer wall of the baffle frame 9, thereby closing one end of the bearing cylinder 7. When it is necessary to open the bearing cylinder 7, the baffle plate 24 is rotated in the opposite direction until the baffle frame 9 is opened, so that the airflow can enter the inner cavity of the frame shell 1.

[0074] The limiting block 23 is fixedly installed on the outer wall of the barrier frame 9. The outer wall of the barrier plate 24 has a notch that matches the limiting block 23. There are two limiting blocks 23. When the barrier frame 9 rotates in the forward direction, the limiting block 23 presses against the notch of the barrier plate 24, causing the barrier plate 24 to rotate. At this time, the fan-shaped hole of the barrier frame 9 remains open. When the barrier frame 9 rotates in the reverse direction, the limiting block 23 on the other side presses against the notch on the other side of the barrier plate 24, causing the barrier plate 24 to rotate. At this time, the fan-shaped hole of the barrier frame 9 remains closed.

[0075] An elastic strip 28 is fixedly installed on the inner wall of the barrier plate 24. Multiple elastic strips 28 are evenly arranged in a ring along the axis of the connecting shaft 27. A friction plate 26 is fixedly installed at the end of the elastic strip 28 away from the barrier plate 24. The elastic strip 28 realizes the elastic connection between the friction plate 26 and the barrier plate 24.

[0076] The outer wall of the friction plate 26 slides and fits against the outer wall of the connecting shaft 27. The friction plate 26 maintains the contact between the outer wall of the connecting shaft 27 and the outer wall of the connecting shaft 27 in real time through elasticity.

[0077] During the rotation of the bearing cylinder 7, the resistance of the baffle plate 24 is increased to prevent the baffle frame 9 and the baffle plate 24 from rotating synchronously.

[0078] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0079] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0080] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A power drawer cabinet testing device, characterized in that: It includes the cabinet, heat dissipation unit, moisture absorption mechanism, control mechanism, back-blowing mechanism, and protective mechanism; The cabinet includes a mounting box (3) and a frame shell (1) with a built-in detection module. The mounting box (3) is fixedly installed on the side wall of the frame shell (1). The heat dissipation unit includes an exhaust fan (2) and a mounting cylinder (30). The mounting cylinder (30) is fixedly installed on the inner wall of the mounting box (3), and one end extends into the interior of the frame shell (1). The other end of the mounting cylinder (30) extends into the outer side of the mounting box (3). The exhaust fan (2) is fixedly installed on the inner wall of the mounting cylinder (30). The moisture absorption mechanism includes a carrier cylinder (7) and a storage cylinder (6). The storage cylinder (6) is a hollow structure and is elastically installed on the inner wall of the carrier cylinder (7). The cavity inside the storage cylinder (6) is used to store desiccant. The carrier cylinder (7) is rotatably installed on the inner wall of the mounting box (3). The other end of the carrier cylinder (7) is connected to the external space. The control mechanism is used to control the rotation of the bearing cylinder (7) along its own axis; The backflush mechanism includes an adjustment box (10) and a transition ring (13). The inner cavity of the adjustment box (10) is connected to the inner cavity of the storage cylinder (6) through the transition ring (13). The inner wall of the transition ring (13) is slidably attached to the outer wall of the bearing cylinder (7). The protective mechanism is used to close the port of the bearing cylinder (7) according to the rotation of the bearing cylinder (7); The storage cylinder (6) is fixedly installed with an ear plate at its axial end. A connecting pin (14) is slidably installed inside the ear plate. An elastic element for connecting with the ear plate is fixedly installed on the outer wall of the connecting pin (14). One end of the connecting pin (14) passes through the ear plate and is fixedly connected to the axial outer wall of the bearing cylinder (7). An extension pocket (5) is fixedly installed on the inner wall of the storage cylinder (6). The inner cavity of the extension pocket (5) is connected to the inner cavity of the storage cylinder (6), and multiple extension pockets are evenly arranged in a ring along the axis of the storage cylinder (6). The inner cavity of the regulating box (10) is elastically fitted with a control plug (20), and the bottom of the control plug (20) is provided with a unidirectional air inlet and an air outlet, the air inlet and the air outlet having opposite directions of conduction; The inner wall of the mounting box (3) is fixedly installed with a connecting pipe (11), the exhaust nozzle is connected to the connecting pipe (11) through a conduit, the bottom of the connecting pipe (11) is fixedly connected to the outer wall of the adapter ring (13), and the inner cavities are interconnected.

2. The power drawer cabinet testing device according to claim 1, characterized in that: The control mechanism includes a drive motor (4), a drive wheel and a driven ring. The drive motor (4) is fixedly installed on the outer wall of the mounting box (3). The power output shaft of the drive motor (4) extends to the inner cavity of the mounting box (3) and is fixedly connected to the center position of the axial end of the drive wheel. The driven ring is fixedly installed on the radial outer wall of the bearing cylinder (7). The drive wheel and the driven ring mesh with each other.

3. The power drawer cabinet testing device according to claim 2, characterized in that: The output shaft of the drive motor (4) is fixedly mounted with a transmission disk (18), and a connecting rod (19) is rotatably mounted on the outer wall of the transmission disk (18). The end of the connecting rod (19) away from the transmission disk (18) is rotatably connected to the bottom surface of the control plug (20). The bottom surface of the control plug (20) is fixedly mounted with a guide shaft (12), and the outer wall of the guide shaft (12) slides against the inner wall of the adjustment box (10).

4. The power drawer cabinet testing device according to claim 3, characterized in that: A sealing plate (15) is fixedly installed on the inner wall of the storage cylinder (6), and the sealing plate (15) is symmetrically arranged on both sides of the extension pocket (5); An elastic plate (17) is fixedly installed on the inner wall of the storage cylinder (6). The other end of the elastic plate (17) extends obliquely to the inner wall of the extension pocket (5) and is set in an arc shape. A barrier layer (16) is fixedly installed at the position where the inner cavity of the storage cylinder (6) communicates with the inner cavity of the adapter ring (13).

5. The power drawer cabinet testing device according to claim 4, characterized in that: A support frame (8) is fixedly installed on the inner wall of the outer shell (1). A connecting shaft (27) is fixedly installed on the outer wall of the support frame (8). A support plate (25) is fixedly installed on the axial end of the connecting shaft (27). A force-bearing frame (21) is fixedly installed on the inner wall of the storage cylinder (6). A force-bearing protrusion (22) is fixedly installed on the outer wall of the support plate (25). Multiple force-bearing protrusions (22) are evenly arranged in a ring along the axis of the connecting shaft (27). A pressing block (29) for pressing the force-bearing protrusions (22) is fixedly installed on the outer wall of the force-bearing frame (21).

6. The power drawer cabinet testing device according to claim 5, characterized in that: The protective mechanism includes a barrier plate (24), a barrier frame (9), and a limiting block (23). The barrier plate (24) is movably disposed on the radial outer wall of the connecting shaft (27), the barrier frame (9) is fixedly installed on the inner wall of the bearing cylinder (7), the edge of the barrier plate (24) is a fan-shaped structure, and the outer wall of the barrier frame (9) is provided with a fan-shaped hole that matches the barrier plate (24). The limiting block (23) is fixedly installed on the outer wall of the barrier frame (9), and the outer wall of the barrier plate (24) has a notch that matches the limiting block (23).

7. The power drawer cabinet testing device according to claim 6, characterized in that: An elastic strip (28) is fixedly installed on the inner wall of the barrier plate (24). Multiple elastic strips (28) are evenly arranged in a ring along the axis of the connecting shaft (27). A friction plate (26) is fixedly installed on one end of the elastic strip (28) away from the barrier plate (24). The outer wall of the friction plate (26) slides against the outer wall of the connecting shaft (27).

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