Low-voltage drawer cabinet mutual inductor integrated device

Abstract

The application discloses a low-voltage drawer cabinet mutual inductor integrated device and belongs to the low-voltage drawer cabinet field.The low-voltage drawer cabinet mutual inductor integrated device comprises a cabinet body, a device cavity and a drawer cabinet mounting cavity are formed in the cabinet body by a partition plate one, a plurality of mounting cavity units are formed in the drawer cabinet mounting cavity by a partition plate two, one drawer structure is arranged in each mounting cavity unit and can be pulled out, first air ducts and second air ducts are formed on the two sides of the drawer cabinet mounting cavity, air outlet structures communicated with the first air ducts and air inlet structures communicated with the second air ducts are arranged on one side of the mounting cavity unit, and adjusting structures for adjusting the opening degrees are arranged at the air inlet structures.The low-voltage drawer cabinet mutual inductor integrated device can precisely control the air volume according to the differentiated heat production of each drawer unit by adopting independent air ducts matched with the air inlet opening degree adjustable structures, and the problems of uneven heat dissipation and energy waste of traditional unified air cooling are solved.

Description

Technical Field

[0001] This invention relates to the field of low-voltage drawer cabinets, and particularly to an integrated device for a low-voltage drawer cabinet current transformer. Background Technology

[0002] Low-voltage switchgear is a key piece of equipment in power distribution systems. Its internal drawer units typically house different types, quantities, and power levels of electrical equipment, such as circuit breakers, contactors, instrument transformers, and smart meters, depending on actual power demand. These electrical devices all generate heat during operation, and their heat generation power and heat density distribution vary significantly. For example, a drawer equipped with a high-current instrument transformer and a smart control module generates far more heat than a drawer with only a few small signal terminals.

[0003] Currently, most common low-pressure drawer cabinet cooling methods employ a uniform forced-air cooling system, which involves installing fans at the top or bottom of the cabinet to create a general ventilation path from bottom to top or top to bottom. This system lacks targeted adjustment and cannot provide differentiated cooling based on the real-time heat generation (i.e., heat load) of the equipment in each drawer. For drawers with high heat generation, the uniform airflow may be insufficient, leading to overheating, aging, or even malfunction of the equipment; for drawers with low heat generation, excessive cooling airflow results in energy waste. Summary of the Invention

[0004] This invention provides an integrated device for low-voltage drawer cabinet current transformers, which can solve the problems of uneven heat dissipation and energy waste caused by uniform air cooling in the prior art.

[0005] A low-voltage drawer cabinet integrated current transformer device includes a cabinet body. The cabinet body is divided into an equipment cavity and a drawer cabinet mounting cavity by a partition. The drawer cabinet mounting cavity is further divided into multiple mounting cavity units by a partition, each mounting cavity unit containing a pull-out drawer structure. A first air duct and a second air duct are formed on both sides of the drawer cabinet mounting cavity. One side of each mounting cavity unit has an air outlet structure communicating with the first air duct and an air inlet structure communicating with the second air duct. An air inlet cavity and an air outlet cavity are formed at the bottom and top of the cabinet body, respectively. The side walls of the air inlet cavity and the air outlet cavity have suction holes and exhaust holes, respectively. A centrifugal fan is installed in the air inlet cavity, and an opening communicating with the second air duct is provided at the top of the air inlet cavity. An exhaust fan is installed in the air outlet cavity via a fan bracket. An adjustment structure for adjusting the opening degree is provided at the air inlet structure.

[0006] Furthermore, there are two air inlet structures, located at the top and bottom of the mounting cavity unit respectively, and the height of the air outlet structure is between the two air inlet structures. The air inlet and air outlet structures have the same structure, each including multiple rectangular holes equidistantly arranged in the horizontal direction. The adjustment structure is installed on the inner or outer wall of the mounting cavity unit. The adjustment structure includes a baffle plate with multiple rectangular holes equidistantly arranged in the horizontal direction. A driving component for driving the baffle plate to move in the horizontal direction and a support plate for guiding the baffle plate to move in the horizontal direction are also provided. The bottom end of the baffle plate abuts against the upper surface of the support plate, and the opposite sides of the support plate and the baffle plate are provided with mutually cooperating guide grooves and guide rails.

[0007] Furthermore, the inner bottom plate of the drawer structure is provided with guide grooves corresponding to the air inlet and air outlet, and an air filter is detachably connected to the outside of the air intake hole of the air inlet cavity; the exhaust hole of the air outlet cavity is provided with louvers that can adjust the air direction.

[0008] Furthermore, a calibration component is provided to calibrate the outlet temperature at the corresponding air outlet structure of each mounting cavity unit; the calibration component includes a heat-sensing module, an indicator module, and a calibration module; the calibration module is installed at the top of the first air duct; the heat-sensing module and the indicator module are installed on the inner and outer walls of the mounting cavity unit; the heat-sensing module is a chamber, the indicator module includes a piston cylinder, a piston is installed inside the piston cylinder, an indicator rod is connected to the piston, and the piston cylinder is connected to the chamber; the calibration module includes a calibration box, and the bottom of the calibration box is provided for the indicator rod to pass through. The calibration box has a circular hole. An image acquisition module and a background plate are respectively installed on two opposite inner walls of the calibration box. The image acquisition module is a camera. A supplementary lighting lamp is also installed inside the calibration box. The top of the calibration box is connected to a movable plate via a guide telescopic component. The center of the upper surface of the movable plate is connected to a T-shaped rod via a hanging rope. A spring connects the T-shaped rod and the inner top side of the calibration box. A pressure sensor is connected to the inner top side of the calibration box opposite the top of the T-shaped rod. A guide block that cooperates with an indicator rod is provided on the outer wall of the drawer cabinet mounting cavity. The indicator rod passes through the guide block.

[0009] Furthermore, a dehumidifying roller is placed at the opening, the dehumidifying roller including an end cap and a cylinder body, the cylinder body having several through holes on its periphery; a fixed shaft and a tube body are fixed to the bottom side of the cylinder body, the annular space formed by the tube body and the fixed shaft is filled with desiccant; vent holes are evenly distributed on the periphery of the tube body; at least two fastening bolts are provided through the end cap, the fixed shaft has threaded holes for threaded connection with the fastening bolts; an arc-shaped sleeve is fitted onto the outer wall of the tube body, the two open ends of the arc-shaped sleeve are provided with counterweight side arms, and an air inlet duct is formed between the two counterweight side arms; vent holes are evenly distributed on the arc-shaped sleeve, the two sides of the counterweight side arms respectively cooperate with the inner wall of the cylinder body and the outer wall of the tube body.

[0010] Furthermore, the top of the cabinet is provided with a storage cavity for storing the dehumidifying roller, and a storage mechanism is fixedly installed on the inner wall of the storage cavity; the storage mechanism includes an alternately arranged first inclined plate and a second inclined plate, the first inclined plate and the second inclined plate are inclined in opposite directions, and the minimum distance between the first inclined plate and the second inclined plate is slightly larger than the outer diameter of the dehumidifying roller; the bottom end of the lowest second inclined plate is located directly above the second air duct.

[0011] Furthermore, a discharge mechanism is provided directly above the second air duct; the discharge mechanism includes a rotating shaft rotatably mounted above the second air duct via a bearing seat, two baffle groups are provided around the rotating shaft, the baffle groups include two baffles at both ends of the rotating shaft, a gear is provided at one end of the rotating shaft, a T-shaped rail is installed on the side wall of the storage cavity, an electric slider is provided on the T-shaped rail, a rack is fixed on the electric slider, and the rack and gear mesh; a baffle plate inserted between the two baffles is fixed on the bottom side of the lowest first inclined plate.

[0012] Furthermore, a storage cavity for storing the used dehumidifying roller is formed on one side of the air inlet cavity, and the air inlet cavity is located directly below the second air duct; a top plate is provided on the top of the air inlet cavity, the top plate is inclined and extends to the interior of the storage cavity at its lower end, and the opening is made on the top plate; an elastic ejection mechanism and a blocking mechanism are installed above the top plate; the blocking mechanism includes a T-shaped rail two fixed to the bottom side of the drawer cabinet mounting cavity, an electric slider two is provided on the T-shaped rail two, a stop block is fixed on the electric slider two, and the stop block abuts against the outer wall of the dehumidifying roller; the elastic ejection mechanism includes at least two spring telescopic members horizontally arranged on the inner wall of the cabinet, and a push plate is provided at the end of the spring telescopic member.

[0013] Furthermore, guide plate one and guide plate two are respectively provided on the bottom side walls of the second air duct. Both guide plate one and guide plate two are inclined and their inclination directions are opposite. Guide plate one is located directly above the stop block, and guide plate two is located directly above the push plate.

[0014] Furthermore, it also includes a controller, which is connected to the calibration component blocking mechanism, the centrifugal fan and the unloading mechanism, and a humidity sensor disposed at any position in the second air duct, which is connected to the controller.

[0015] This invention adopts an independent air duct with an adjustable air inlet opening structure, which can accurately control the air volume according to the different heat generation of each drawer unit, solve the problems of uneven heat dissipation and energy waste of traditional uniform air cooling, and improve the accuracy and energy efficiency of heat dissipation; it integrates an automatic storage, unloading, replacement and waste collection mechanism for dehumidifying rollers, and works in conjunction with humidity sensor linkage control to continuously ensure a dry environment inside the cabinet, realize automated maintenance of dehumidifying components, and reduce labor costs. Attached Figure Description

[0016] Figure 1 A schematic diagram of the integrated low-voltage drawer cabinet current transformer device is provided for this invention;

[0017] Figure 2 Provided for the present invention Figure 1 The main view;

[0018] Figure 3 Provided for the present invention Figure 1 A sectional view;

[0019] Figure 4 Provided for the present invention Figure 3 Enlarged view of a portion of point A in the middle;

[0020] Figure 5 Provided for the present invention Figure 3 Enlarged view of a section at point B in the middle;

[0021] Figure 6 A schematic diagram of the dehumidifying drum assembly is provided for this invention;

[0022] Figure 7 This invention provides a calibration component installation status diagram;

[0023] Figure 8 Provided for the present invention Figure 7 Side view;

[0024] Figure 9 A schematic diagram showing the cooperation between the heat sensing module and the indicator module is provided for this invention;

[0025] Figure 10 A schematic diagram of the calibration module is provided for this invention;

[0026] Figure 11 A schematic diagram of the regulating junction structure is provided for this invention.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1-Cabinet body, 2-Drawer structure, 3-Dehumidifying roller, 11-Storage cavity, 12-Drawer cabinet mounting cavity, 13-Second air duct, 14-First air duct, 15-Storage cavity, 16-Air inlet cavity, 17-Push plate, 18-Baffle, 19-Spindle, 31-Cylinder body, 32-End cap, 33-Arc-shaped sleeve, 34-Counterweight side support, 35-Fixed shaft, 36-Tube body, 37-Desiccant, 40-Heat sensing module, 50-Indicator module, 51-Piston cylinder, 53-Indicator rod, 60-Calibration module, 61-Calibration box, 62-Round hole, 63-Image acquisition module, 64-Background plate, 65-Supplemental lighting, 66-Moving plate, 67-Guide telescopic Components: 68-Hanging rope, 69-T-shaped rod, 101-Air outlet cavity, 1021-First inclined plate, 1022-Second inclined plate, 103-Exhaust hole, 104-Fan bracket, 105-Rectangular hole one, 106-Wind deflector, 1061-Rectangular hole two, 107-Support plate, 108-Drive component, 131-Guide plate one, 132-Guide plate two, 161-Suction hole, 162-Top plate, 163-Opening, 171-Spring telescopic component, 172-T-shaped rail two, 1713-Stop block, 191-Gear, 192-Stop rod, 193-Rack, 194-T-shaped rail one, 311-Through hole, 690-Pressure sensor, 691-Spring. Detailed Implementation

[0029] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0030] like Figures 1 to 11 As shown in the figure, the present invention provides an integrated device for low-voltage drawer cabinet transformers, which aims to solve the problem that existing low-voltage drawer cabinets using uniform forced air cooling cannot accurately and on demand dissipate the heat generated by different electrical devices such as transformers and circuit breakers in each drawer unit in real time, thereby avoiding local overheating or energy waste.

[0031] The device of this invention includes a cabinet 1. The interior of the cabinet 1 is divided into an equipment cavity and a drawer cabinet mounting cavity 12 by multiple partitions. The drawer cabinet mounting cavity 12 is further divided into multiple independent mounting cavity units by partitions. Each mounting cavity unit contains a removable drawer structure 2 for installing electrical components. This modular design, aimed at achieving centralized management and independent maintenance of the equipment, utilizes a removable drawer structure for partitioned arrangement, thus improving the flexibility of equipment installation and facilitating subsequent inspection and maintenance.

[0032] To facilitate heat dissipation, such as Figure 1-3On the left and right sides of the drawer cabinet installation cavity 12, a first air duct 14 and a second air duct 13 are formed, respectively, and each installation cavity unit is provided with an air outlet structure communicating with the first air duct 14 on one side and an air inlet structure communicating with the second air duct 13 on the other side, the number of air inlet structures is two, and the two air inlet structures are located at the top and bottom positions of the installation cavity unit, respectively, and the height of the air outlet structure is between the two air inlet structures. Realize the independent air circulation path for each drawer unit, the present application adopts the structure of setting independent air inlet and outlet on both sides of the installation cavity unit and communicating with the two side air ducts, which achieves the technical effect of directing the cooling air flow through each drawer interior to realize precise heat dissipation. At the same time, the bottom and top of the cabinet body 1 form an air inlet cavity 16 and an air outlet cavity 101, respectively, the side wall of the air inlet cavity 16 is provided with a suction hole 161, and the side wall of the air outlet cavity 101 is provided with an exhaust hole 103; in order to realize the suction and exhaust of the whole air flow; in order to drive the cooling air to circulate in the system, a centrifugal fan is installed in the air inlet cavity 16, and the top of the air inlet cavity 16 is provided with an opening 163 communicating with the second air duct 13, and an exhaust fan is installed in the air outlet cavity 101 through a fan support 104.

[0033] The present application adopts a three-point layout of upper and lower double air inlets and a single air outlet in the middle, which achieves the technical effect of making cold air enter from the upper and lower ends, fully flowing through the equipment and then being concentratedly discharged from the middle, avoiding air flow short circuit and heat dissipation dead angle.

[0034] The air inlet structure and the air outlet structure are the same structure, both including a plurality of rectangular holes one 105 arranged at equal intervals along the horizontal direction; in order to solve the problem that different drawers require different cooling air volume due to different heat generation of internal equipment, the present application adopts an independent adjustable adjusting structure at each drawer air inlet, such as Figure 11 , the adjusting structure includes a baffle plate 106, which is provided with a rectangular hole two 1061 corresponding to the rectangular hole one 105 of the air inlet; the baffle plate 106 is driven by a driving member 108 and slides horizontally along a support plate 107, and the opposite sides of the support plate 107 and the baffle plate 106 are provided with guiding sliding grooves and guiding sliding rails matched with each other; realizing stepless and linear adjustment of air volume, the present application adopts a horizontally slidable multi-hole baffle plate to shield the air inlet, and adjusts the air volume by changing the overlapping area of the openings.

[0035] In order to improve the heat dissipation efficiency and protect the internal equipment, a flow guide groove corresponding to the air inlet and the air outlet is arranged on the inner bottom plate of the drawer structure 2, and an air filter is detachably connected outside the suction hole 161 of the air inlet cavity 16; a louver is arranged at the exhaust hole 103 of the air outlet cavity 101 to adjust the air direction; the air inlet filter prevents dust from entering, and the air outlet louver controls the exhaust direction, which achieves the effect of improving the reliability of the system.

[0036] In order to accurately monitor the heat dissipation state of each drawer, the present application adopts a calibration assembly based on the principle of thermal expansion and contraction of gas, like Figure 7-8 The calibration assembly comprises a heat sensing module 40 installed at the corresponding air outlet of each installation cavity unit, an indication module 50, and a calibration module 60 located at the top of the first air duct 14, and the heat sensing module 40 and the indication module 50 are installed on the inner and outer side walls of the installation cavity unit.

[0037] As shown in Figure 9 The heat sensing module 40 is a cartridge body, the indication module 50 comprises a piston cylinder 51, a piston is arranged in the piston cylinder 51, an indication rod 53 is connected to the piston, and the piston cylinder 51 is in communication with the cartridge body.

[0038] As shown in Figure 10 The calibration module 60 comprises a calibration box body 61, a circular hole 62 for the indication rod 53 to pass through is arranged at the bottom of the calibration box body 61, image acquisition modules 63 and background plates 64 are respectively arranged on two opposite inner walls of the calibration box body 61, the image acquisition modules 63 are cameras, and a light supplementing illuminating lamp 65 is further arranged in the calibration box body 61; a guide block matched with the indication rod 53 is arranged on the outer wall of the installation cavity 12 of the drawer cabinet, and the indication rod 53 penetrates through the guide block.

[0039] When the heat generated by the equipment in the drawer causes the temperature of the discharged air to rise, the temperature of the gas in the heat sensing module 40 also rises, and the gas expands due to heat; the expansion of the gas in the heat sensing module generates pressure, which drives the piston in the piston cylinder 51 to move, and the movement of the piston is upwardly extended by a certain length through the indication rod 53 connected thereto, the length of the indication rod 53 extending out is directly proportional to the expansion degree of the gas in the heat sensing module, and the expansion degree is directly related to the temperature change; therefore, the temperature of the air outlet is ultimately converted into the physical signal of the length of the indication rod 53 extending out.

[0040] The indication rod 53 extends upwardly, penetrates through the guide block, and is finally inserted into the calibration module 60 located at the top of the first air duct 14; when the indication rod 53 extends into the box body, the top end thereof forms a clear image on the background plate. The camera captures the position image of the top end of the indication rod 53; the longer the indication rod 53 extends, the higher the position thereof in the image. Through the image processing algorithm, the length of the indication rod 53 extending out can be accurately calculated, so as to deduce the corresponding air outlet temperature value. The light supplementing illuminating lamp 65 ensures clear imaging.

[0041] In order to control the start of the image acquisition module 63, as shown in Figure 10The movable plate 66 is connected to the T-shaped rod 69 through a lifting rope 68 at the center of the upper surface of the movable plate 66, and the spring 691 is connected between the T-shaped rod 69 and the inner top side of the calibration box 61; when the top end of the indicating rod 53 abuts against the movable plate 66, the movable plate 66 moves upward along the guide expansion piece 67, at this time, under the action of the spring 691, the T-shaped rod 69 moves upward and abuts against the pressure sensor 690 at the end, and when the pressure sensor 690 detects a signal, the image acquisition module 63 is started; the indicating rods of all the drawers are concentrated to a calibration module for processing, so that the wiring is simplified and the cost of the multi-channel independent electronic temperature sensor is reduced; the heat sensing and indicating part does not need power supply and circuit, and the reliability is high, and is especially suitable for the power distribution cabinet environment with strong electromagnetic interference.

[0042] In order to prevent the humid air from entering the cabinet body and damaging the electrical equipment, and realize automatic replacement of the drying agent, the dehumidification roller 3 is placed at the opening 163 at the top of the air inlet cavity 16, the inside of the dehumidification roller 3 is filled with the drying agent 37, the top of the cabinet body is provided with the storage cavity 11 for storing the standby dehumidification roller 3, the storage mechanism adopts the first inclined plate 1021 and the second inclined plate 1022 which are alternately inclined, the inclined directions of the first inclined plate 1021 and the second inclined plate 1022 are opposite, and the minimum distance between the first inclined plate 1021 and the second inclined plate 1022 is slightly greater than the dehumidification roller 3; one side of the air inlet cavity 16 is provided with the storage cavity 15 for collecting the waste dehumidification roller 3, the replaceable dehumidification roller 3 is arranged on the air inlet path, and the automatic mechanism for storing at the top and collecting at the bottom is provided, so that the technical effects of continuously dehumidifying the cooling air, conveniently replacing the dehumidification roller 3 after the drying agent is invalid, and maintaining the dry environment in the cabinet are achieved.

[0043] In order to conveniently control the dehumidification roller 3 on the storage mechanism to fall as needed, the unloading mechanism is arranged directly above the second air duct 13, like Figure 4 The unloading mechanism comprises a rotating shaft 19 rotatably installed above the second air duct 13 through a bearing seat, two stop rod groups are arranged on the circumferential side of the rotating shaft 19, the stop rod group comprises two stop rods 192 arranged at both ends of the rotating shaft 19, a gear 191 is arranged at one end of the rotating shaft 19, a T-shaped rail one 194 is installed on the side wall surface of the storage cavity 11, an electric sliding block one is arranged on the T-shaped rail one 194, a rack 193 is fixed on the electric sliding block one, and the rack 193 and the gear 191 are engaged; the bottom side of the first inclined plate 1021 located at the lowermost position is fixed with a baffle plate 18 inserted between the two stop rods 192, the rotating shaft 19 and the stop rod 192 are driven to rotate by the rack 193 driving the gear 191, and the dehumidification roller 3 at the lowermost position in the storage cavity is released.

[0044] The standby dehumidification roller 3 is arranged in order on the alternate inclined plates of the storage mechanism, and the lowermost roller is supported by the baffle 18 and a pair of blocking rods 192. The baffle 18 is inserted into the gap between the two blocking rods 192 to form a physical block. When it is detected that the adsorption performance of the current working dehumidification roller decreases or reaches the predetermined replacement time, the controller starts the electric sliding block one on the T-shaped rail one 194 to drive the rack 193 to move horizontally, and the linear motion of the rack 193 drives the gear 191 engaged therewith to rotate, thereby driving the rotating shaft 19 and the plurality of blocking rod groups thereon to rotate, and the blocking rods 192 rotate to release the mutual clamping relationship with the baffle 18. The lowermost dehumidification roller 3 is separated from the baffle 18 and the rotating blocking rods 192 under the action of gravity and falls vertically into the second air duct 13 directly below; during operation, the control rack 193 moves horizontally to the left, and the blocking rod group loses the blocking of the dehumidification roller 3; at this time, another blocking rod group will be clamped between the two dehumidification rollers 3 about to fall and adjacent thereto, thereby preventing multiple dehumidification rollers 3 from falling at the same time. After one operation is completed, the control rack 193 moves horizontally to the right to drive the rotating shaft 19 to rotate and return to the initial state, and at this time, the end of one set of blocking rod groups abuts against the dehumidification roller 3 about to fall.

[0045] The controller is further connected with the calibration assembly blocking mechanism, the centrifugal fan and the unloading mechanism, and a humidity sensor is arranged at any position in the second air duct 13. The humidity sensor is connected with the controller, and the humidity sensor continuously monitors the humidity of the cooling air entering the inside of the cabinet body. The controller compares the humidity value with the preset upper limit of humidity. When the monitored humidity continuously exceeds the set upper limit, the controller determines that the currently working dehumidification roller 3 has been saturated and failed, and cannot effectively dehumidify, and needs to be replaced.

[0046] During the replacement process, the blocking mechanism is controlled to move away from the elastic ejection mechanism, and cooperates with the elastic ejection mechanism to push the failed old roller out of the working position opening 163 to the storage cavity 15, and the blocking mechanism returns to the original state. The unloading mechanism is started to release a standby new dehumidification roller.

[0047] In order to facilitate the collection of the waste dehumidification roller 3, the storage cavity 15 for storing the waste dehumidification roller 3 is formed on one side of the air inlet cavity 16, and the air inlet cavity 16 is located directly below the second air duct 13. A top plate 162 is arranged at the top of the air inlet cavity 16, the top plate 162 is arranged obliquely and extends to the inside of the storage cavity 15 at the lower end, and an opening 163 is formed on the top plate 162

[0048] In order to control the dehumidification roller 3 to fall from the second air duct 13 downwardly and then fall into the opening 163, an elastic ejection mechanism and a blocking mechanism are installed above the top plate 162. For example Figure 5The blocking mechanism comprises a T-shaped rail two 172 fixed on the bottom side of the drawer cabinet installation cavity 12, an electric sliding block two is arranged on the T-shaped rail two 172, and a blocking block 1713 is fixed on the electric sliding block two and abuts against the outer wall surface of the dehumidification roller 3; the elastic ejection mechanism comprises at least two spring telescopic members 171 arranged horizontally on the inner wall surface of the cabinet body, and the end portion of the spring telescopic member 171 is provided with a push plate 17; before the dehumidification roller 3 reaches the predetermined position, the blocking mechanism is in a working state. The electric sliding block two drives the blocking block 1713 to extend and cross one side edge of the opening 163, thereby physically blocking the dehumidification roller 3 and making the dehumidification roller 3 stop near the upper side of the opening 163, and the dehumidification roller 3 presses and controls the spring telescopic member 171 to be compressed; when the electric sliding block two drives the blocking block 1713 to move away from the elastic ejection mechanism, under the spring-back effect of the spring telescopic member 171, the elastic ejection mechanism ejects the dehumidification roller 3 stopped at the opening 163, and since the top plate 162 is inclined to one side of the storage cavity 15, the ejected dehumidification roller 3 rolls into the storage cavity 15 along the inclined top plate 162 under the action of gravity and is collected.

[0049] In order to avoid that the dehumidification roller 3 directly impacts on the elastic ejection mechanism and the blocking mechanism and causes damage to the two when the dehumidification roller 3 falls from the second air duct 13 downward, guide plates one 131 and two 132 are arranged on the bottom of the second air duct 13 and opposite to the side walls, respectively; the guide plates one 131 and two 132 are both arranged to be inclined, and the inclined directions of the two are opposite; the guide plate one 131 is located directly above the blocking block 1713, and the guide plate two 132 is located directly above the push plate 17; the vertically falling roller is guided, slowed down and changed in direction, and is rolled to the middle area of the bottom of the air duct. The guide plate one 131 guides the roller to the side of the blocking block 1713, and the guide plate two 132 guides the roller to the side of the push plate 17.

[0050] As Figure 6 The dehumidification roller 3 comprises an end cover 32 and a roller body 31, a plurality of through holes 311 are arranged on the circumferential side of the roller body 31, a fixed shaft 35 and a pipe body 36 are fixed on the bottom side of the roller body 31, the annular space formed by the pipe body 36 and the fixed shaft 35 is filled with a desiccant 37, and the pipe body 36 and the roller body 31 form an annular movable cavity; the humid air enters from the outside through the through holes of the roller body 31, is dried after flowing through the desiccant 37 area, the contact area and the contact time of the humid air and the desiccant 37 are prolonged, the airflow uniformly penetrates the desiccant layer, and the technical effects of efficient and sufficient dehumidification are achieved, and the airflow short circuit is avoided to cause incomplete local dehumidification.

[0051] The pipe body 36 is evenly provided with air holes one on the side; the outer wall of the pipe body 36 is sleeved with an arc-shaped sleeve 33, both open ends of the arc-shaped sleeve 33 are provided with counterweight side helps 34, and the air inlet duct is formed between the two counterweight side helps 34; the arc-shaped sleeve 33 is evenly provided with air holes two, and the two sides of the counterweight side help 34 are matched with the inner wall of the cylinder body 31 and the outer wall of the pipe body 36 respectively; no matter what the posture of the dehumidification roller 3 is, there is always a stable air inlet opening towards the airflow, which achieves the technical effect that the airflow must be forced to enter from the specified channel, flow through the desiccant core area and then be discharged, and ensures that the reliability and efficiency of the dehumidification process are not affected by the slight change of the installation angle or position of the roller.

[0052] At least two fastening bolts are provided on the end cover 32 in a penetrating manner, and the fixing shaft 35 is provided with threaded holes which are threadedly connected with the fastening bolts; such an assembled structure makes the replacement of the desiccant 37 or the maintenance of the whole roller very convenient. When the desiccant is invalid, the bolts of the end cover 32 can be unscrewed, and the desiccant can be replaced or regenerated. This achieves the technical effect of reducing the long-term use cost and realizing the maintenance and reuse of the core functional components, and avoids the one-time scrapping of the whole dehumidification module.

[0053] The above only discloses several specific embodiments of the present application, but the embodiments of the present application are not limited to this. Any changes that can be thought of by those skilled in the art should fall within the protection scope of the present application.

Claims

1. A low-voltage drawer cabinet current transformer integrated device, characterized in that, The cabinet includes a cabinet body (1), which is divided into an equipment cavity and a drawer cabinet installation cavity (12) by a partition. The drawer cabinet installation cavity (12) is divided into multiple installation cavity units by a partition, and each installation cavity unit can be equipped with a drawer structure (2) that can be pulled out. The drawer cabinet mounting cavity (12) has a first air duct (14) and a second air duct (13) formed on both sides respectively. The mounting cavity unit has an air outlet structure connected to the first air duct (14) and an air inlet structure connected to the second air duct (13) on one side. The bottom and top of the cabinet (1) are respectively formed with an air inlet cavity (16) and an air outlet cavity (101), and the side walls of the air inlet cavity (16) and the air outlet cavity (101) are respectively provided with an air intake hole (161) and an air exhaust hole (103). A centrifugal fan is installed in the air inlet cavity (16), and an opening (163) is provided at the top of the air inlet cavity (16) to connect with the second air duct (13); an exhaust fan is installed in the air outlet cavity (101) through a fan bracket (104); The air inlet structure is equipped with an adjustment mechanism for adjusting the opening degree.

2. The integrated low-voltage drawer cabinet current transformer device as described in claim 1, characterized in that, The number of air inlet structures is two, and the two air inlet structures are located at the top and bottom of the mounting cavity unit, respectively. The height of the air outlet structure is between the two air inlet structures. The air inlet structure and the air outlet structure have the same structure, both including multiple rectangular holes (105) arranged at equal intervals along the horizontal direction. The adjustment structure is installed on the inner or outer wall of the mounting cavity unit. The adjustment structure includes a baffle plate (106), and a plurality of rectangular holes (1061) are provided at equal intervals along the horizontal direction on the baffle plate (106). It is also provided with a drive member (108) for driving the wind deflector (106) to move in the horizontal direction, and a support plate (107) for guiding the wind deflector (106) to move in the horizontal direction. The bottom end of the wind deflector (106) abuts against the upper surface of the support plate (107). The support plate (107) and the wind deflector (106) are provided with mutually cooperating guide grooves and guide rails on their opposite sides.

3. The integrated low-voltage drawer cabinet current transformer device as described in claim 2, characterized in that, The drawer structure (2) has an internal bottom plate with a guide groove corresponding to the air inlet and air outlet. An air filter is detachably connected to the outside of the air intake hole (161) of the air inlet cavity (16). An adjustable louver is provided at the exhaust hole (103) of the air outlet cavity (101).

4. The integrated low-voltage drawer cabinet current transformer device as described in claim 2, characterized in that, It is also equipped with a calibration component to calibrate the outlet temperature at the corresponding outlet structure of each mounting cavity unit; The calibration components include a thermal sensing module (40), an indicator module (50), and a calibration module (60). The calibration module (60) is installed on top of the first air duct (14); The heat-sensing module (40) and the indicator module (50) are installed on the inner and outer walls of the mounting cavity unit; The heat-sensing module (40) is a chamber, and the indicator module (50) includes a piston cylinder (51), a piston is provided inside the piston cylinder (51), an indicator rod (53) is connected to the piston, and the piston cylinder (51) is connected to the chamber. The calibration module (60) includes a calibration box (61). The bottom of the calibration box (61) is provided with a circular hole (62) for the indicator rod (53) to pass through. The two opposite inner walls of the calibration box (61) are respectively provided with an image acquisition module (63) and a background plate (64). The image acquisition module (63) is a camera. The calibration box (61) is also provided with a supplementary lighting lamp (65). The top of the calibration box (61) is connected to a movable plate (66) via a guide telescopic component (67). The center of the upper surface of the movable plate (66) is connected to a T-shaped rod (69) via a hanging rope (68). A spring (691) is connected between the T-shaped rod (69) and the inner top side of the calibration box (61). A pressure sensor (690) is connected to the inner top side of the calibration box (61) directly opposite the top of the T-shaped rod (69). The outer wall of the drawer cabinet mounting cavity (12) is provided with a guide block that cooperates with the indicator rod (53), and the indicator rod (53) passes through the guide block.

5. The integrated low-voltage drawer cabinet current transformer device as described in claim 1, characterized in that, A dehumidifying roller (3) is placed at the opening (163). The dehumidifying roller (3) includes an end cap (32) and a cylinder (31). Several through holes (311) are provided on the periphery of the cylinder (31). The bottom side of the cylinder (31) is fixed with a fixed shaft (35) and a tube (36), and the annular space formed by the tube (36) and the fixed shaft (35) is filled with a desiccant (37). The tube body (36) has a vent hole evenly distributed around its perimeter; at least two fastening bolts are provided through the end cap (32), and the fixed shaft (35) is provided with a threaded hole that is threadedly connected to the fastening bolts; An arc-shaped sleeve (33) is fitted onto the outer wall of the tube body (36). The two open ends of the arc-shaped sleeve (33) are provided with counterweight side arms (34), and an air inlet duct is formed between the two counterweight side arms (34). The arc-shaped sleeve (33) is evenly distributed with two ventilation holes, and the two sides of the counterweight side arm (34) are respectively matched with the inner wall surface of the cylinder (31) and the outer wall surface of the tube (36).

6. The integrated low-voltage drawer cabinet current transformer device as described in claim 5, characterized in that, The top of the cabinet (1) is provided with a storage cavity (11) for storing the dehumidifying roller (3), and a storage mechanism is fixedly installed on the inner wall of the storage cavity (11). The storage mechanism includes alternating first inclined plate (1021) and second inclined plate (1022), wherein the first inclined plate (1021) and second inclined plate (1022) are inclined in opposite directions, and the minimum distance between the first inclined plate (1021) and second inclined plate (1022) is slightly larger than the outer diameter of the dehumidifying drum (3); The bottom of the second inclined plate (1022) is located directly above the second air duct (13).

7. The integrated low-voltage drawer cabinet current transformer device as described in claim 6, characterized in that, An unloading mechanism is provided directly above the second air duct (13); The unloading mechanism includes a rotating shaft (19) rotatably mounted above the second air duct (13) via a bearing seat. Two baffle groups are provided around the rotating shaft (19). The baffle groups include two baffles (192) at both ends of the rotating shaft (19). A gear (191) is provided at one end of the rotating shaft (19). A T-shaped rail (194) is installed on the side wall of the storage cavity (11). An electric slider is provided on the T-shaped rail (194). A rack (193) is fixed on the electric slider. The rack (193) and the gear (191) mesh with each other. A baffle (18) is fixed on the bottom side of the first inclined plate (1021) at the bottom. It is inserted between the two baffles (192).

8. The integrated low-voltage drawer cabinet current transformer device as described in claim 6 or 7, characterized in that, The air inlet cavity (16) has a storage cavity (15) on one side for storing the waste dehumidifying roller (3), and the air inlet cavity (16) is located directly below the second air duct (13); The air inlet cavity (16) is provided with a top plate (162) at the top. The top plate (162) is inclined and extends to the interior of the storage cavity (15) at its lower end. The opening (163) is formed on the top plate (162). An elastic ejection mechanism and a blocking mechanism are installed above the top plate (162); The blocking mechanism includes a T-shaped rail (172) fixed to the bottom side of the drawer cabinet mounting cavity (12), an electric slider (2) is provided on the T-shaped rail (172), and a stop block (1713) is fixed on the electric slider (2), the stop block (1713) abuts against the outer wall of the dehumidifying roller (3); The elastic ejection mechanism includes at least two spring telescopic members (171) horizontally arranged on the inner wall of the cabinet, and a push plate (17) is provided at the end of the spring telescopic member (171).

9. The integrated low-voltage drawer cabinet current transformer device as described in claim 8, characterized in that, The bottom of the second air duct (13) is provided with guide plate one (131) and guide plate two (132) on opposite side walls. Both guide plate one (131) and guide plate two (132) are inclined and their inclination directions are opposite. The first guide plate (131) is located directly above the stop block (1713), and the second guide plate (132) is located directly above the push plate (17).

10. The integrated low-voltage drawer cabinet current transformer device as described in claim 8, characterized in that, It also includes a controller, which is connected to the blocking mechanism, the centrifugal fan and the unloading mechanism, and a humidity sensor located at any position in the second air duct (13), which is connected to the controller.

Images