CN105186334A - Automatic cooling ring main unit - Google Patents

Abstract

The automatic cooling and cooling ring network cabinet includes a rectangular parallelepiped cabinet body. The cabinet body is composed of a left panel, a right panel, a top panel, a bottom panel, a rear side panel and a cabinet door. There are partitions, louvers are respectively set on the left side and the right side, the left vertical plate and the right vertical plate are arranged between the top plate and the bottom plate, the left vertical plate and the left vertical plate are parallel and adjacent, and the right vertical plate is connected to the right The boards are parallel and adjacent, the left vertical board and the right vertical board are uniformly provided with ventilation holes, the right side of the left vertical board and the left side of the right vertical board are respectively equipped with electrical components; there is an air volume rotation adjustment mechanism between the center of the top board and the center of the bottom board , the upper surface of the top plate is provided with a refrigeration air supply device communicated with the air volume rotation adjustment mechanism. The invention has the advantages of simple structure, easy operation, good heat dissipation effect, low energy consumption, strong reliability, and good dustproof effect. The structure of multiple adjustments to the air supply volume can keep the electrical components in the cabinet at a good working temperature, thereby prolonging the electrical life. Component life.

Description

Automatic cooling cooling ring network cabinet

technical field

The invention relates to an electrical device, in particular to an automatic cooling type ring network cabinet.

Background technique

The ring network cabinet is a group of high-voltage switchgear installed in the steel plate metal cabinet or made into an assembled spaced ring network power supply unit. Its core part uses electrical components such as load switches and fuses. It has simple structure, small size, and low price. Low, can improve power supply parameters and performance, and power supply security and other advantages. It is widely used in distribution stations and box-type substations of load centers such as urban residential quarters, high-rise buildings, large public buildings, factories and enterprises.

The heat generated by the electrical components installed in the ring network cabinet needs to be discharged continuously to ensure the normal operation of the electrical components. At present, the heat dissipation method and structure of the electrical components in the ring network cabinet have the following defects: 1. Since the ring network cabinet is generally high in height, vertical ventilation is adopted, the air path is long, and the cold air at the end of the air path has been blocked. Heating, so the temperature in the ring network cabinet is still high, and the heat dissipation effect is poor, resulting in shortened service life of electrical components; 2. There is more dust at the air inlet of the air path, so that the wind entering the ring network cabinet carries more dust; 3. 1. After the electrical components are used for a long time, dust is easy to accumulate in the depressions and irregular protrusions of the electrical components, which reduces the service life of the electrical components and forms a safety hazard (possibly causing a short circuit); 4. The air volume of the air circuit is not adjusted. Mechanism, large energy consumption, low cooling efficiency.

Contents of the invention

In order to solve the deficiencies in the prior art, the present invention provides an automatic cooling ring main unit with good cooling effect, adjustable cooling air volume, less dust carried in the cooling air, low energy consumption, and high cooling and heat dissipation efficiency.

In order to solve the above-mentioned technical problems, the present invention adopts the following technical scheme: the automatic cooling type ring network cabinet includes a cabinet in the shape of a cuboid, and the cabinet is composed of a left side panel, a right side panel, a top panel, a bottom panel, a rear side panel and a cabinet door. Composition, there is a horizontal partition between the left side board and the right side board, there are louvers respectively on the left side board and the right side board, a left vertical board and a right vertical board are arranged between the top board and the bottom board, and the left vertical board and the The left side board is parallel and adjacent, the right vertical board is parallel and adjacent to the right side board, the left vertical board and the right vertical board are uniformly provided with ventilation holes, and the right side of the left vertical board and the left side of the right vertical board are respectively equipped with electrical components ; There is an air volume rotation adjustment mechanism between the center of the top plate and the center of the bottom plate;

The air volume rotation adjustment mechanism includes an outer sleeve, an inner sleeve and a servo motor. The upper and lower ends of the outer sleeve are fixedly connected to the top plate and the bottom plate respectively. The inner sleeve is coaxially arranged in the outer sleeve, and the servo motor is located in the outer sleeve and fixed on the bottom plate The main shaft of the servo motor is coaxially connected with a mounting column through a coupling. The inner diameter of the mounting column is equal to the inner diameter of the inner sleeve. The lower end of the inner sleeve is inserted into the mounting column and contacts the coupling. The space is fixed and connected by mounting screws along the horizontal radial direction; the outer casing is uniformly provided with outer arc holes, and the inner casing is evenly provided with inner arc holes, both of which are horizontally arranged and aligned One correspondence; there is a gap between the inner wall of the outer casing and the outer wall of the inner casing, the inner wall of the outer casing is provided with a positioning ring and a sliding sleeve located on the upper side of the positioning ring, the outer wall of the sliding sleeve is tightly matched with the inner wall of the outer casing, and the inner wall of the sliding sleeve and the inner Casing outer wall clearance fit;

The upper surface of the top plate is provided with a cooling and air supply device and a mounting frame. The cooling and air supply device includes a housing in which a box and a refrigeration compressor, a condenser, a condensing radiator, a throttle valve, and an air volume adjustment are arranged on the top of the box. Motor and turbo fan, the box is equipped with an evaporator and a damper for adjusting the size of the cross-sectional area of the ventilation in the box. The middle of the damper is vertically equipped with a rotating shaft connected to the box. The air volume is adjusted. The condenser is arranged on the condenser, and the heat dissipation air inlet window adjacent to the refrigeration compressor and the heat dissipation air outlet window adjacent to the condensation radiator are arranged on the shell. The refrigeration compressor, condenser, throttle valve, evaporator and refrigeration compressor are arranged in sequence. The second time is connected through a pipeline, the housing is provided with a cooling air inlet connected to the air inlet of the turbo fan, and the box body is provided with an air inlet connected with the air outlet of the turbo fan, and the damper is located between the air inlet and the evaporator; One end adjacent to the evaporator is connected with a wind guide cover, and the outlet of the wind guide cover is connected with a flexible hose protruding from the housing. The flexible hose is equipped with a clamp-type wind speed adjustment mechanism, and a straight pipe joint is detachably connected to the mounting frame. The straight pipe joint is arranged vertically, the upper end of the straight pipe joint is connected with the flexible hose through the elbow joint, and the upper end of the inner sleeve extends into the straight pipe joint coaxially through the top plate, and there is a rotation between the straight pipe joint and the inner sleeve. Sealing structure; the top plate is provided with a sealing ring for sealing the outer wall of the inner casing;

The clamp-type wind speed adjustment mechanism includes a fixed plate arranged vertically. One side of the fixed plate is provided with an adjusting motor and a square tube arranged vertically. The power output end of the adjusting motor is connected to a gear. There is a box outside, the square tube is slidingly connected with a rack, the side of the square tube is provided with a gap communicating with the inside of the square tube, one side of the gear extends into the gap and meshes with the rack, and the upper end of the rack is connected axially There is a push-pull rod, the upper end of the push-pull rod is connected with a sliding frame, the upper part of the fixed plate is hinged with the rear splint and the front splint, the rear guide rail is provided on the front side of the lower end of the rear splint, the front guide rail is provided on the rear side of the lower end of the front splint, and the rear guide rail and the lower end of the front guide rail are provided. The distance between the rear guide rail and the upper end of the front guide rail is greater than the distance between the upper ends of the rear guide rail and the front guide rail. The rear guide rail and the front guide rail are symmetrical and have the same structure with respect to the vertical front and back. The rear side of the carriage is provided with two rear sliders that slide along the rear guide rail. The front side of the carriage There are two front sliders that slide along the front guide rail. The middle part of the front surface of the rear guide rail is provided with a guide bar along the length direction. Shaped rear clamping ring, the top of the front splint is hinged with a semicircular front clamping ring, the openings of the front clamping ring and the rear clamping ring are set opposite to each other, the flexible hose is clamped between the rear clamping ring and the front clamping ring, and the rear splint It is connected with the front splint by a tension spring, and the tension spring is located on the lower side of the hinge point between the rear splint and the fixed plate;

The rotary sealing structure includes an upper limit ring on the outside of the upper end of the inner sleeve and a lower limit ring on the lower end of the straight pipe joint. The lower limit ring is detachably connected to the straight pipe joint through fastening screws. The upper limit ring and the lower limit ring There is a sealing sleeve made of polyurethane material between them, and the sealing sleeve is in sliding and sealing cooperation with the outer wall of the inner casing and the inner wall of the straight pipe joint respectively.

The inner wall of the inner casing is provided with at least two reinforcing ribs along the axial direction.

The outer surface of the shell is provided with slide rails located on the left and right sides of the cooling air inlet. Corresponding to the filter screen connected by sliding and sealing, the mesh on the filter screen gradually becomes smaller from top to bottom. The lower limit block between the lower ends, the lower part of the slide plate and the surface of the housing are snap-fitted through plastic buckles.

By adopting the above technical scheme, the present invention also includes the following technical features: the outer surface of the left side plate and the outer surface of the right side plate are respectively provided with a left dust suction device and a right dust suction device at the shutter, and the left dust suction device and the right dust suction device The structure is the same and the left and right are symmetrical; the left dust collection device includes a suction hood with a small left and a large right. The right end of the suction hood is fixed on the left plate. Ventilation valve; there is a rotary dust blowing mechanism on the top of the electrical component. The rotary dust blowing mechanism includes a rotary motor, a micro air compressor and a nozzle. The rotary motor is set on the electrical component. Connection, the outlet of the miniature air compressor is connected with the inlet of the nozzle through a high-pressure pipe, and the jet port of the nozzle is obliquely downward toward the upper surface of the electrical component.

The heat dissipation principle of the present invention is as follows: turn on the turbo fan, the dust or dust carried in the cold wind is pre-filtered by the filter screen, after the air in the box is cooled, the turbo fan blows into the box, the air flow is cooled by the evaporator, and the cold air passes through the wind guide Covers, flexible hoses, elbow joints, inner sleeves, inner arc holes, and outer arc holes enter around the electrical components to cool and dissipate the electrical components. The heat emitted by the electrical components flows through the air holes and louvers with the air It is discharged into the suction hood, and then discharged through the one-way ventilation valve on the suction hood.

The air volume adjustment motor drives the air door to rotate through the rotating shaft, and the air door rotation can adjust the ventilation cross-sectional area of the box, thereby adjusting the air volume of the cold air and achieving the purpose of adjusting the cooling effect.

The refrigeration principle of the refrigeration air supply device is as follows: the refrigeration compressor compresses the refrigerant from a low-temperature and low-pressure gas into a high-temperature and high-pressure gas, and then condenses it into a liquid at room temperature and high pressure through the condenser. After being throttled by the throttle valve, it becomes a liquid at low temperature and low pressure. . The low-temperature and low-pressure liquid refrigerant is sent into the evaporator, absorbs heat and evaporates in the evaporator to become high-temperature and low-pressure steam, and is sent to the refrigeration compressor again to complete the refrigeration cycle.

Concrete structural feature of the present invention has following beneficial effect:

1. The setting of the filter screen can filter the outside air once, and the clean air enters the refrigeration air supply device to be refrigerated; the mesh holes on the filter screen gradually become smaller from top to bottom and the slide plate is slidably connected to the slide rail, so that Adjust the corresponding position between the filter screen and the cooling air inlet to adjust the air volume passing through the filter screen, and initially adjust the cooling effect.

2. A temperature sensor for monitoring the temperature inside the cabinet is also installed in the cabinet. When the temperature inside the cabinet is low or high, the servo motor can be started and/or the motor can be adjusted to adjust the exhaust air volume; when the servo motor is started, the drive inside When the sleeve rotates, since the length of the inner sleeve is equivalent to the height of the cabinet body, the reinforcing ribs set on the inner wall of the inner sleeve can enhance the torque of the inner sleeve, and the rotation of the inner sleeve can adjust the distance between the inner arc hole and the outer arc hole. The size of the coincidence, thereby adjusting the size of the exhaust air volume; when the adjustment motor is started, the rear clamp ring and the front clamp ring will clamp the flexible hose, and the exhaust air volume can be adjusted through the distance between the rear clamp ring and the front clamp ring. The specific adjustment process is as follows: by manipulating and adjusting the motor, the motor drives the gear to rotate, the gear drives the rack meshed with it to move to the right or left along the square tube, and the push-pull rod coaxial with the rack pushes or pulls the sliding frame upwards or downwards. Moving down, under the action of the tension spring, the rear slider on the rear splint and the front slider on the front splint always slide along the rear guide rail and the front guide rail respectively. When the push-pull rod is pushed upward, the sliding frame moves upward, and the rear guide rail and The distance between the front guide rails increases, and under the action of the lever principle, the rear clamp ring on the upper end of the rear splint and the front clamp ring on the upper end of the front splint clamp the flexible hose, the cross-sectional area of the flexible hose becomes smaller, and the ventilation volume decreases , in the same way, when the push-pull rod is pulled down, the cross-sectional area of the flexible hose becomes larger, and the exhaust air volume increases, so that the exhaust air volume in the cabinet can be adjusted, thereby achieving the effect of adjusting the good heat dissipation in the cabinet.

3. After the present invention has operated for a period of time, a layer of dust will adhere to the upper surface of the electrical components, start the rotating motor and the miniature air compressor, and the rotating motor will drive the transmission shaft, the miniature air compressor and the nozzle to rotate 360°, and the micro air compressor will produce The high-pressure airflow is ejected from the nozzle, and the dust on the surface of the electrical components is blown up; at the same time, the exhaust fan is started, and the exhaust fan sucks out the dust raised on the electrical components through the air holes and the louvers; The role of internal air intake.

4. The sealing sleeve made of polyurethane in the rotating sealing structure not only has a good sealing effect, but also is smooth and has good wear resistance; the upper limit ring and the lower limit ring are used to limit the position of the sealing sleeve. When the sealing sleeve needs to be replaced, it can be Unscrew the fastening screw, take off the lower limit ring to take out the sealing sleeve and install a new sealing sleeve.

5. The lower end of the inner casing is inserted into the mounting column and is in contact with the coupling. The inner casing and the mounting column are fixedly connected by mounting screws along the horizontal radial direction, which not only supports the gravity of the inner casing itself, but also It can provide transmission torque for the inner casing.

6. The sliding sleeve plays the role of limiting the inner casing from tilting, and can be replaced when worn out. The positioning ring is used to limit the sliding sleeve from moving downward.

To sum up, the present invention has simple structure, easy operation, good heat dissipation effect, low energy consumption, strong reliability and good dustproof effect, and the electrical components in the cabinet can be kept in good working condition by multiple adjustments to the structure of the air supply volume. temperature, thereby prolonging the service life of electrical components.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is an enlarged view of the rotary sealing structure in Fig. 1;

Fig. 3 is an enlarged view of place A in Fig. 1;

Fig. 4 is the enlarged view of place B in Fig. 1;

Fig. 5 is an enlarged left view of the clamp-type wind speed regulating mechanism in Fig. 1;

Fig. 6 is a schematic structural view of the rear guide rail in Fig. 5;

Fig. 7 is a schematic structural view of the rear slider in Fig. 5;

Fig. 8 is a schematic diagram of the shape and structure of the refrigeration air supply device in Fig. 1;

FIG. 9 is a schematic diagram of the internal structure of FIG. 8 .

Detailed ways

As shown in Figures 1-9, the automatic cooling cooling type ring network cabinet of the present invention includes a cabinet in the shape of a cuboid, and the cabinet consists of a left side panel 1, a right side panel 2, a top panel 3, a bottom panel 4, and a rear side panel. 5 and a cabinet door (not shown in the figure), a partition 6 is arranged horizontally between the left side panel 1 and the right side panel 2, shutters 7 are respectively arranged on the left side panel 1 and the right side panel 2, and the left side panel 1 The inner wall and the right side board 2 The inner wall is provided with a cleaning structure at the shutter 7, and the left vertical board 8 and the right vertical board 9 are arranged between the top board 3 and the bottom board 4, and the left vertical board 8 is parallel to and adjacent to the left side board 1 , the right vertical plate 9 is parallel and adjacent to the right vertical plate 2, the left vertical plate 8 and the right vertical plate 9 are uniformly provided with exhaust holes 10, the right side of the left vertical plate 8 and the left side of the right vertical plate 9 are respectively provided with electrical components 11.

An air volume rotation adjustment mechanism is provided between the center of the top plate 3 and the center of the bottom plate 4; the air volume rotation adjustment mechanism includes an outer sleeve 12, an inner sleeve 13 and a servo motor 14, and the upper and lower ends of the outer sleeve 12 are fixedly connected to the top plate 3 and the base plate 4 respectively. The inner casing 13 is coaxially arranged in the outer casing 12, the servo motor 14 is located in the outer casing 12 and fixed on the base plate 4, the main shaft of the servo motor 14 is coaxially connected with a mounting column 16 through a coupling 15, and the mounting column The inner diameter of 16 is equal to the inner diameter of the inner sleeve 13, the lower end of the inner sleeve 13 is inserted in the installation column 16 and contacts with the coupling 15, and the installation screw 17 along the horizontal radial direction is passed between the inner sleeve 13 and the installation column 16 Fixed connection; the outer casing 12 is uniformly provided with an outer arc-shaped hole 18, and the inner casing 13 is evenly provided with an inner arc-shaped hole 19, and the outer arc-shaped hole 18 and the inner arc-shaped hole 19 are all horizontally arranged and correspond to each other; There is a gap between the inner wall of the tube 12 and the outer wall of the inner sleeve 13, and the inner wall of the outer sleeve 12 is provided with a positioning ring 20 and a sliding sleeve 21 located on the upper side of the positioning ring 20, and the outer wall of the sliding sleeve 21 is tightly matched with the inner wall of the outer sleeve 12. The inner wall of the sleeve 21 is in clearance fit with the outer wall of the inner casing 13 .

The upper surface of the top plate 3 is provided with a refrigeration air supply device 22 and a mounting frame 23. The refrigeration air supply device 22 includes a housing 53, and the housing 53 is provided with a box body 60 and a refrigeration compressor 61 and a condenser 62 positioned at the top of the box body 60. , condensing radiator 63, throttle valve 64, air volume adjustment motor 65 and turbo blower 66, the box body 60 is provided with an evaporator 67 and a damper 68 for adjusting the size of the ventilation cross-sectional area in the box body 60, and the damper 68 middle part is vertically arranged There is a rotating shaft 69 rotatably connected to the box body 60, the main shaft of the air volume regulating motor 65 is connected to the rotating shaft 69, the condensing radiator 63 is arranged on the condenser 62, and the housing 53 is provided with a cooling air intake adjacent to the refrigeration compressor 61. Window 70 and the cooling outlet window 71 adjacent to the condensing radiator 63, the refrigeration compressor 61, the condenser 62, the throttle valve 64, the evaporator 67 and the refrigeration compressor 61 are connected through pipelines in sequence, and the housing 53 is provided with The cooling air inlet 72 connected to the air inlet of the turbo fan 66, the box body 60 is provided with the air inlet connected to the air outlet of the turbo fan 66, and the damper 68 is positioned between the air inlet and the evaporator 67; One end of the air guide cover 73 is connected, and the outlet of the wind guide cover 73 is connected with a flexible hose 24 protruding from the housing 53. The flexible hose 24 is provided with a clamp-type wind speed adjustment mechanism 25, and the mounting bracket 23 is detachably connected with a Straight pipe joint 26, the straight pipe joint 26 is vertically arranged, the upper end of the straight pipe joint 26 is connected with the flexible hose 24 through the elbow joint 27, and the upper end of the inner sleeve 13 extends coaxially into the straight pipe joint 26 through the top plate 3, A rotary sealing structure 28 is provided between the straight pipe joint 26 and the inner casing 13 ; and a sealing ring 29 is provided on the top plate 3 to seal the outer wall of the inner casing 13 .

The clamp-type wind speed regulating mechanism 25 includes a fixed plate 30 arranged vertically, and the surface of one side of the fixed plate 30 is provided with an adjusting motor 31 and a square tube 32 arranged in the vertical direction. 32 side parts are provided with box body 59 outside gear 33 and regulating motor 31, and rack 34 is slidably connected in square tube 32, and square tube 32 side parts are provided with the gap 35 that communicates with square tube 32 inside, and gear 33 side stretches out. into the gap 35 and engaged with the rack 34, the upper end of the rack 34 is coaxially connected with a push-pull rod 36, the upper end of the push-pull rod 36 is connected with a sliding frame 37, the upper part of the fixed plate 30 is hinged with a rear splint 38 and a front splint 39, Rear clamping plate 38 lower end front sides are provided with rear guide rail 40, and front clamping plate 39 lower end rear sides are provided with front guide rail 41, and the distance between rear guide rail 40 and front guide rail 41 lower ends is greater than the distance between rear guide rail 40 and front guide rail 41 upper ends, The rear guide rail 40 and the front guide rail 41 are symmetrical and have the same structure about the vertical front and back. The front slider 43, the middle part of the front surface of the rear guide rail 40 is provided with a guide bar 44 along the length direction, and the middle part of the rear side of the rear slider 42 is provided with a guide groove 45 slidingly matched with the guide bar 44; The rear clamp ring 46, the upper end of the front clamp plate 39 is hinged with a semicircular front clamp ring 47, the openings of the front clamp ring 47 and the rear clamp ring 46 are oppositely arranged front and back, and the flexible hose 24 is clamped between the rear clamp ring 46 and the front clamp ring. Between the rings 47, the rear splint 38 and the front splint 39 are connected by an extension spring 48, and the extension spring 48 is located at the lower side of the hinge point between the rear splint 38 and the fixed plate 30.

The rotary sealing structure 28 includes an upper limit ring 50 arranged outside the upper end of the inner sleeve 13 and a lower limit ring 49 arranged on the lower end surface of the straight pipe joint 26, and the lower limit ring 49 is detachably connected to the straight pipe joint 26 by fastening screws 51 , Between the upper limit ring 50 and the lower limit ring 49, there is a sealing sleeve 52 made of polyurethane material, and the sealing sleeve 52 is respectively in sliding sealing cooperation with the outer wall of the inner sleeve 13 and the inner wall of the straight pipe joint 26.

The outer surface of the left side plate 1 and the outer surface of the right side plate 2 are respectively provided with a left dust suction device and a right dust suction device at the shutter 7, and the left dust suction device and the right dust suction device have the same structure and are bilaterally symmetrical; the left dust suction device Including a suction hood 74 with a small left and a large right, the right end of the suction hood 74 is fixed on the left side plate 1, the left end of the suction hood 74 is connected with an exhaust fan 75, and the suction hood 74 is provided with a one-way ventilation valve 76;

The top of the electrical component 11 is provided with a rotary dust blowing mechanism, the rotary dust blowing mechanism includes a rotary motor 54, a miniature air compressor 55 and a nozzle 57, the rotary motor 54 is located on the electrical component 11, and the main shaft of the rotary motor 54 passes through the rotating shaft 56 and The micro-air compressor 55 is connected, and the outlet of the micro-air compressor 55 is connected with the inlet of the nozzle 57 through a high-pressure pipe, and the air jet of the nozzle 57 is obliquely downward toward the upper surface of the electrical component 11 . The inner wall of the inner sleeve 13 is provided with at least two reinforcing ribs 58 along the axial direction.

The outer surface of the housing 53 is provided with slide rails 77 located on the left and right sides of the cooling air inlet 72. The two slide rails 77 are parallel and vertically arranged. The slide rails 77 are slidably connected with a slide plate 78, and the slide plate 78 is provided with a cooling air intake. 72 is corresponding and the filter screen 79 that sliding seal is connected, and the mesh on the filter screen 79 becomes smaller gradually from top to bottom, and housing 53 is provided with the upper limit block 80 that is positioned between two slide rails 77 upper ends, and housing 53 A lower limit block 81 located between the lower ends of the two slide rails 77 is arranged on the top, and the lower part of the slide plate 78 and the surface of the housing 53 are snap-fitted by a plastic buckle 82 . The upper limit block 80 and the lower limit block 81 respectively limit the sliding limit position of the slide plate 78 up and down, and the plastic buckle 82 is used to fix the position of the slide plate 78 on the slide rail 77 .

The heat dissipation principle of the present invention is as follows: turn on the turbo fan 66, the dust or dust carried in the cold wind is pre-filtered by the filter screen 79, after the air in the box body 60 is cooled, the turbo fan 66 blows air into the box body 60, and the air flow passes through the evaporator 67 is refrigerated, and cold air enters around the electrical component 11 after passing through the wind guide cover 73, flexible hose 24, elbow joint 27, inner casing 13, inner arc-shaped hole 19, and outer arc-shaped hole 18, and the electrical component 11 is Cooling and heat dissipation, the heat emitted by the electrical components 11 is discharged into the air suction hood 74 through the air vent 10 and the shutter 7 along with the air flow, and then discharged through the one-way ventilation valve 76 on the air suction hood 74 .

The air volume regulating motor 65 drives the damper 68 to rotate through the rotating shaft 69, and the rotation of the damper 68 can adjust the ventilation cross-sectional area of the box body 60, thereby adjusting the air volume of the cold wind to achieve the purpose of adjusting the cooling effect.

The refrigeration principle of the refrigeration air supply device 22 is as follows: the refrigeration compressor 61 compresses the refrigerant from a low-temperature and low-pressure gas into a high-temperature and high-pressure gas, and then condenses it into a normal-temperature and high-pressure liquid through the condenser 62. After being throttled by the throttle valve 64, it becomes Low temperature and low pressure liquid. The low-temperature and low-pressure liquid refrigerant is sent to the evaporator 67, absorbs heat and evaporates in the evaporator 67 to become high-temperature and low-pressure steam, and is sent to the refrigeration compressor 61 again, thereby completing the refrigeration cycle.

The setting of filter screen 79 can filter the outside air once, and the clean air enters into the refrigeration air supply device 22 to obtain refrigeration; In this way, the corresponding position between the filter screen 79 and the cooling air inlet 72 can be adjusted to adjust the air volume passing through the filter screen 79, and the cooling effect can be preliminarily adjusted.

A temperature sensor for monitoring the temperature in the cabinet is also installed in the cabinet. When the temperature in the cabinet is lower or higher, the servo motor 14 and/or the regulating motor 31 can be started to adjust the exhaust air volume; The inner sleeve 13 rotates, because the length of the inner sleeve 13 is equivalent to the height of the cabinet body, the reinforcing ribs provided on the inner wall of the inner sleeve 13 can enhance the torque of the inner sleeve 13, the inner sleeve 13 rotates, and the inner arc hole 19 can be adjusted The size that overlaps with the outer arc-shaped hole 18, thereby adjusting the size of the exhaust air; when the adjustment motor 31 is started, the rear clamp ring 46 and the front clamp ring 47 clamp the flexible hose 24, and pass through the rear clamp ring 46 and the front clamp The distance between the rings 47 is adjusted for the draft volume. The specific adjustment process is as follows: by controlling the adjustment motor 31, the adjustment motor 31 drives the gear 33 to rotate, the gear 33 drives the rack 34 meshed with it to move to the right or left along the square tube 32, and the push-pull rod 36 coaxial with the rack 34 Push or pull the sliding frame 37 to move up or down, under the effect of the extension spring 48, the rear slider 42 on the rear clamping plate 38 and the front slider 43 on the front clamping plate 39 are always along the rear guide rail 40 and the front guide rail 41 respectively. Sliding, when the push-pull rod 36 was pushed upwards, the sliding frame 37 moved upwards, and the distance between the rear guide rail 40 and the front guide rail 41 increased. The front clamping ring 47 clamps the flexible hose 24 tightly, the cross-sectional area of the flexible hose 24 becomes smaller, and the exhaust air volume decreases. Large, so that you can adjust the amount of exhaust air in the cabinet, so as to achieve the effect of adjusting the good heat dissipation in the cabinet.

After the present invention runs for a period of time, a layer of dust will be attached to the upper surface of the electrical component 11, and the rotary motor 54 and the miniature air compressor 55 will be started, and the rotary motor 54 will drive the transmission shaft 56, the miniature air compressor 55 and the nozzle 57 to rotate 360°, and the miniature air compressor 55 will rotate 360°. The high-pressure airflow generated by the air compressor 55 is ejected from the nozzle 57, and the dust on the surface of the electrical components is blown up; at the same time, the exhaust fan 75 is activated, and the exhaust fan 75 blows the dust raised on the electrical components 11 through the air vent 10 and the shutter 7 Extraction; the one-way air-permeable valve 76 has the effect of ventilating outwards and not inwards air intake.

The above embodiments are only used to illustrate and not limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that the present invention can still be modified or equivalently replaced without departing from it. Any modifications or partial replacements within the spirit and scope of the present invention shall fall within the scope of the claims of the present invention.

Claims (3)

1. Automatic cooling and cooling ring network cabinet, including a rectangular parallelepiped cabinet body, the cabinet body is composed of left side panel, right side panel, top panel, bottom panel, rear side panel and cabinet door, between the left side panel and the right side panel There are partitions horizontally, which are characterized in that: the left side board and the right side board are respectively provided with louvers, the top board and the bottom board are provided with a left vertical board and a right vertical board, and the left vertical board is parallel to and adjacent to the left side board. The right vertical plate is parallel to and adjacent to the right vertical plate, the left vertical plate and the right vertical plate are evenly provided with ventilation holes, and the right side of the left vertical plate and the left side of the right vertical plate are respectively provided with electrical components; between the center of the top plate and the center of the bottom plate Equipped with air volume rotation adjustment mechanism; The air volume rotation adjustment mechanism includes an outer sleeve, an inner sleeve and a servo motor. The upper and lower ends of the outer sleeve are fixedly connected to the top plate and the bottom plate respectively. The inner sleeve is coaxially arranged in the outer sleeve, and the servo motor is located in the outer sleeve and fixed on the bottom plate The main shaft of the servo motor is coaxially connected with a mounting column through a coupling. The inner diameter of the mounting column is equal to the inner diameter of the inner sleeve. The lower end of the inner sleeve is inserted into the mounting column and contacts the coupling. The space is fixed and connected by mounting screws along the horizontal radial direction; the outer casing is uniformly provided with outer arc holes, and the inner casing is evenly provided with inner arc holes, both of which are horizontally arranged and aligned One correspondence; there is a gap between the inner wall of the outer casing and the outer wall of the inner casing, the inner wall of the outer casing is provided with a positioning ring and a sliding sleeve located on the upper side of the positioning ring, the outer wall of the sliding sleeve is tightly matched with the inner wall of the outer casing, and the inner wall of the sliding sleeve and the inner Casing outer wall clearance fit; The upper surface of the top plate is provided with a cooling and air supply device and a mounting frame. The cooling and air supply device includes a housing in which a box and a refrigeration compressor, a condenser, a condensing radiator, a throttle valve, and an air volume adjustment are arranged on the top of the box. Motor and turbo fan, the box is equipped with an evaporator and a damper for adjusting the size of the cross-sectional area of the ventilation in the box. The middle of the damper is vertically equipped with a rotating shaft connected to the box. The air volume is adjusted. The condenser is arranged on the condenser, and the heat dissipation air inlet window adjacent to the refrigeration compressor and the heat dissipation air outlet window adjacent to the condensation radiator are arranged on the shell. The refrigeration compressor, condenser, throttle valve, evaporator and refrigeration compressor are arranged in sequence. The second time is connected through a pipeline, the housing is provided with a cooling air inlet connected to the air inlet of the turbo fan, and the box body is provided with an air inlet connected with the air outlet of the turbo fan, and the damper is located between the air inlet and the evaporator; One end adjacent to the evaporator is connected with a wind guide cover, and the outlet of the wind guide cover is connected with a flexible hose protruding from the housing. The flexible hose is equipped with a clamp-type wind speed adjustment mechanism, and a straight pipe joint is detachably connected to the mounting frame. The straight pipe joint is arranged vertically, the upper end of the straight pipe joint is connected with the flexible hose through the elbow joint, and the upper end of the inner sleeve extends into the straight pipe joint coaxially through the top plate, and there is a rotation between the straight pipe joint and the inner sleeve. Sealing structure; the top plate is provided with a sealing ring for sealing the outer wall of the inner casing; The clamp-type wind speed adjustment mechanism includes a fixed plate arranged vertically. One side of the fixed plate is provided with an adjusting motor and a square tube arranged vertically. The power output end of the adjusting motor is connected to a gear. There is a box outside, the square tube is slidingly connected with a rack, the side of the square tube is provided with a gap communicating with the inside of the square tube, one side of the gear extends into the gap and meshes with the rack, and the upper end of the rack is connected axially There is a push-pull rod, the upper end of the push-pull rod is connected with a sliding frame, the upper part of the fixed plate is hinged with the rear splint and the front splint, the rear guide rail is provided on the front side of the lower end of the rear splint, the front guide rail is provided on the rear side of the lower end of the front splint, and the rear guide rail and the lower end of the front guide rail are provided. The distance between the rear guide rail and the upper end of the front guide rail is greater than the distance between the upper ends of the rear guide rail and the front guide rail. The rear guide rail and the front guide rail are symmetrical and have the same structure with respect to the vertical front and back. The rear side of the carriage is provided with two rear sliders that slide along the rear guide rail. The front side of the carriage There are two front sliders that slide along the front guide rail. The middle part of the front surface of the rear guide rail is provided with a guide bar along the length direction. Shaped rear clamping ring, the top of the front splint is hinged with a semicircular front clamping ring, the openings of the front clamping ring and the rear clamping ring are set opposite to each other, the flexible hose is clamped between the rear clamping ring and the front clamping ring, and the rear splint It is connected with the front splint by a tension spring, and the tension spring is located on the lower side of the hinge point between the rear splint and the fixed plate; The rotary sealing structure includes an upper limit ring on the outside of the upper end of the inner sleeve and a lower limit ring on the lower end of the straight pipe joint. The lower limit ring is detachably connected to the straight pipe joint through fastening screws. The upper limit ring and the lower limit ring There is a sealing sleeve made of polyurethane material between them, and the sealing sleeve is in sliding and sealing cooperation with the outer wall of the inner casing and the inner wall of the straight pipe joint respectively. 2. The automatic cooling type ring network cabinet according to claim 1, characterized in that: the inner wall of the inner casing is provided with at least two reinforcing ribs along the axial direction. 3. The automatic cooling cooling ring network cabinet according to claim 1, characterized in that: the outer surface of the shell is provided with slide rails located on the left and right sides of the cooling air inlet, the two slide rails are parallel and vertically arranged, and the slide rails are Slidingly connected with a slide plate, a handle is provided on the lower edge of the slide plate, and a filter screen corresponding to the cooling air inlet and connected in a sliding seal is provided on the slide plate. The mesh holes on the filter screen gradually become smaller from top to bottom. There is an upper limit block between the upper ends of the two slide rails, and a lower limit block between the lower ends of the two slide rails is provided on the housing, and the lower part of the slide plate and the surface of the housing are snap-fitted by plastic buckles.