Medium-voltage switch cabinet with intelligent cooling control function

Abstract

The invention discloses an intelligent cooling control medium-voltage switch cabinet. The intelligent cooling control medium-voltage switch cabinet comprises a cabinet body part which is provided with an external cabinet body part and an internal cabinet body part; the air-cooling heat dissipation piece comprises an air-cooling power piece, an air-cooling filtering piece and a filtering dust removal piece, and the air-cooling power piece is installed on the external cabinet body piece; the air cooling filter part is used for filtering cold air entering the external cabinet body part and the internal cabinet body part on the external cabinet body part and the internal cabinet body part respectively; and the liquid cooling heat dissipation pieces comprise liquid cooling heat absorption heat dissipation pieces, liquid cooling power transmission pieces and liquid cooling power pieces, the liquid cooling heat absorption heat dissipation pieces are arranged on the internal cabinet body piece and the external cabinet body piece, and the air cooling heat dissipation system provides kinetic energy for circulating flow for the liquid cooling heat dissipation system. The switch cabinet is reasonable in structural design and high in heat dissipation efficiency, external dust can be prevented from being sucked into the switch cabinet in the heat dissipation process, the air cooling flow can be independently and intelligently controlled according to the temperature in the electrical installation cavity, the heat dissipation efficiency is remarkably improved, and meanwhile the manufacturing cost and the use and maintenance cost are remarkably reduced.

Description

Technical Field

[0001] The present application relates to the technical field of switchgear, and specifically to a medium-voltage switchgear cabinet with intelligent temperature reduction control. Background Art

[0002] Medium-voltage switchgear is a key piece of equipment used for medium-voltage power distribution in power systems, primarily responsible for the control, protection, distribution, and monitoring of electrical energy. The main components within the switchgear include circuit breakers, disconnectors, load switches, operating mechanisms, transformers, and various protective devices. Circuit breakers are larger in size, placing greater emphasis on safety to ensure stable and secure operation under complex starting requirements, such as forward and reverse rotation. Because medium-voltage switchgear integrates a large number of circuits and switch controllers, heat easily builds up inside the switchgear during use. If this heat is not promptly removed, it can directly impact the internal electrical components. Existing methods for dissipating heat within switchgear primarily include exhaust and liquid cooling. Exhaust draws in fresh air from outside the switchgear and exhausts the hot air from within. However, this exhaust method is inefficient and can easily draw in dust from the air outside the switchgear, which can adhere to electrical components, causing malfunctions and increasing switchgear maintenance costs. Liquid cooling uses circulating liquid to dissipate heat from the medium-voltage switchgear. For example, the patent document with authorization announcement number CN214543168U discloses an intelligent low-voltage switch cabinet, in which cooling components are installed on three sides of the cabinet body, and a liquid inlet pipe, a liquid outlet pipe and a water tank are configured. However, this method requires an external power source for circulating the coolant. For example, the above patent sets a water pump outside the cabinet, which increases the system complexity, manufacturing cost and maintenance cost, and cannot intelligently and independently adjust the heat dissipation of a certain area in a certain switch cabinet. Summary of the Invention

[0003] In response to the shortcomings of the existing technology, this application provides a medium-voltage switchgear with intelligent temperature control to solve the problems of low heat dissipation efficiency, easy dust entry, high complexity of water cooling, and lack of intelligence in the above-mentioned existing technology.

[0004] To achieve the above objectives, this application is implemented through the following technical solutions:

[0005] A medium-voltage switchgear with intelligent temperature-lowering control, comprising a cabinet having an external cabinet part and an internal cabinet part, wherein the internal cabinet part is used to install electrical components in the external cabinet part, and is characterized in that: it also comprises an air-cooled heat sink and a liquid-cooled heat sink; the air-cooled heat sink comprises an air-cooled power part, an air-cooled filter part and a filter dust removal part, the air-cooled power part is mounted on the external cabinet part, and draws in external cold air to provide negative pressure for the external cabinet part and the internal cabinet part, the air-cooled filter part comprises an external filter part and an internal filter part mounted on the external cabinet part and the internal cabinet part, respectively The cold air entering the external cabinet parts and the internal cabinet parts is filtered, and the filter dust removal part is installed on the internal cabinet part to shake and remove dust from the connected air-cooled filter part; the liquid-cooled heat sink includes a liquid-cooled heat-absorbing heat sink, a liquid-cooled power transmission part and a liquid-cooled power part, and the liquid-cooled heat-absorbing heat sink is installed on the internal cabinet parts and the external cabinet parts to liquid-cool the electrical components; the liquid-cooled power transmission part is installed on the liquid-cooled heat-absorbing heat sink and is driven by the connected liquid-cooled power part to drive the circulation of the coolant in the liquid-cooled heat-absorbing heat sink, and the liquid-cooled power part is transmission-connected to the filter dust removal part.

[0006] Preferably, the internal cabinet part includes an internal cabinet and a cabinet partition plate, and the external cabinet part includes an external cabinet, and the cabinet partition plate is installed in the internal cabinet to divide the internal cabinet into independent electrical installation cavities; a bottom air duct is provided between the bottom surface of the internal cabinet and the bottom surface of the external cabinet, and side air ducts are provided between the two side walls of the internal cabinet and the two side walls of the external cabinet, a top air duct is provided between the top surface of the internal cabinet and the top surface of the external cabinet, and an air supply duct is provided between the back surface of the internal cabinet and the back surface of the external cabinet, and the air supply duct is separated from the bottom air duct, the top air duct and the side air duct; the number of the internal filter elements corresponds to the electrical installation cavity.

[0007] Preferably, the air-cooled power component uses a heat dissipation axial flow fan, and the heat dissipation axial flow fan is installed on the top surface of the external cabinet.

[0008] Preferably, the internal filter element includes an internal sliding filter element and an air volume control element, and the internal sliding filter element is used to filter the cold air entering the internal cabinet; a temperature sensor is provided in each electrical installation cavity, and the air volume control element is installed on the internal sliding filter element, and is used to automatically adjust and control the flow rate of cold air entering the electrical installation cavity according to the temperature sensed by the temperature sensor in the electrical installation cavity.

[0009] Preferably, the filtering dust removal component includes a filtering dust removal power component and a shaking dust removal component. The filtering dust removal power component is installed on the internal cabinet and is driven to rotate by the airflow after absorbing heat and heating. The rotating filtering dust removal power component drives the connected external filter component and internal sliding filter component to shake up and down to remove dust through the shaking dust removal component.

[0010] Preferably, the filtering and dust removal power component includes a wind power component and a deceleration output component. The wind power component is driven to rotate by the airflow after absorbing heat and heating. The deceleration output component is installed on the wind power component and is used to decelerate the rotational force of the wind power component and increase the torque, and then transmit power to the shaking dust removal component and the liquid cooling power component.

[0011] Preferably, the shaking dust removal component includes a shaking power component and a shaking transmission component connected to each other. The shaking power component is installed on the deceleration output component and is used to drive the external filter component and the internal sliding filter component to shake up and down to remove dust through the shaking transmission component.

[0012] Preferably, the liquid-cooled heat absorption and heat dissipation element includes a liquid-cooled heat absorber, a liquid-cooled relay bin and a liquid-cooled radiator. The liquid-cooled heat absorber is fitted on the internal cabinet, the liquid-cooled relay bin is arranged on the side wall of the internal cabinet, one port of the liquid-cooled heat absorber is connected to the liquid-cooled relay bin through a first one-way valve, the liquid-cooled radiator is arranged on the outer side wall of the external cabinet, and one port of the liquid-cooled radiator is connected to the liquid-cooled relay bin through a second one-way valve, and the other end of the liquid-cooled radiator is connected to the other end of the liquid-cooled heat absorber.

[0013] Preferably, the liquid-cooled power transmission component includes a liquid cylinder, a piston rod and a sealing piston. The side wall of one end of the liquid cylinder is arranged on the top surface of the liquid-cooled relay chamber, and the sealing piston is arranged on one end of the piston rod. The sealing piston is slidably embedded in the tube at the other end of the liquid cylinder.

[0014] Preferably, the liquid-cooled power component includes a liquid-cooled support seat, a liquid-cooled transmission pipe, a first transmission wheel, a second transmission wheel and a transmission belt. The liquid-cooled support seat is arranged on the external cabinet, the liquid-cooled transmission pipe is rotatably arranged on the liquid-cooled support seat, and the liquid-cooled transmission pipe is axially slidably fitted on the other end of the piston rod, and at the same time, the sliding groove on the inner wall of the liquid-cooled transmission pipe is fitted on the sliding block on the side wall of the other end of the piston rod; the first transmission wheel is fitted on the liquid-cooled transmission pipe, the second transmission wheel is fitted on the reduction output component, and the transmission belt is fitted on the first transmission wheel and the second transmission wheel at the same time.

[0015] Compared with the prior art, the present solution has the following beneficial effects: the present application has a reasonable structural design, high heat dissipation efficiency, can prevent external dust from being sucked into the switch cabinet during the heat dissipation process, and can use the air-cooled heat dissipation system in the switch cabinet to provide circulating kinetic energy for the liquid-cooled heat dissipation system, that is, the filtering and dust removal power component can provide power for the circulating flow of the coolant inside the liquid-cooled heat dissipation component, so that the liquid-cooled heat dissipation component forms a self-circulating flow heat dissipation system, which significantly improves the heat dissipation efficiency while significantly reducing the manufacturing cost and the use and maintenance cost; at the same time, the external filter element and the internal filter element can filter and remove dust from the external cold air entering the switch cabinet twice, significantly reducing the probability of dust adsorbing on the electrical components, and the filtering and dust removal power component provides power for the shaking dust removal element, thereby shaking and removing dust from the two layers of filter elements, avoiding the problem of dust clogging the filter net, and further improving the heat dissipation efficiency. At the same time, the independent electrical installation cavity can control the air cooling flow according to the temperature conditions in the electrical installation cavity, so as to save energy while improving the air cooling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main view of an embodiment of the switch cabinet of this scheme; Figure 2 This is a top view of an embodiment of the switch cabinet of this solution; Figure 3 This is a schematic diagram of the front-end three-dimensional structure of an embodiment of the switch cabinet of this solution; Figure 4 This is a schematic diagram of the rear-end three-dimensional structure of an embodiment of the switch cabinet of this solution; Figure 5 for Figure 2 Schematic diagram of the three-dimensional structure cut along the AA axis; Figure 6 for Figure 2 Schematic diagram of the three-dimensional structure cut along the middle BB direction; Figure 7 for Figure 2 Schematic diagram of the three-dimensional structure cut in the CC direction; Figure 8 for Figure 7 A partial enlarged view of the F part in the middle; Figure 9 for Figure 7 A partial enlarged view of the middle G part; Figure 10 for Figure 1 Schematic diagram of the three-dimensional structure cut in the middle DD direction; Figure 11 for Figure 10 A partial enlarged view of part I in the middle; Figure 12 for Figure 1 Schematic diagram of the three-dimensional structure cut along the EE direction; Figure 13 for Figure 12 A partial enlarged view of the middle J area; Figure 14 This is a schematic diagram of the three-dimensional structure of an embodiment of a liquid-cooled transmission tube in a switch cabinet of this solution; Figure 15 This is a schematic diagram of a longitudinally cut three-dimensional structure of an embodiment of a liquid-cooled transmission tube in a switch cabinet of this solution; Figure 16 This is a schematic diagram of the three-dimensional structure of an embodiment of a liquid cylinder in the switch cabinet of this solution facing the first hydraulic through hole; Among them, 1-external cabinet, 2-internal cabinet, 3-air supply partition, 4-cabinet partition, 5-upper electrical installation cavity, 6-middle electrical installation cavity, 7-lower electrical installation cavity, 8-protective door, 9-cooling axial fan, 12-external vent, 14-internal filter support frame, 15-internal filter, 16-second spring, 17-air volume intercepting plate, 18-automatic telescopic rod, 19-discharge relay hole, 20-rotation support tube, 21 rotation shaft, 23-fan blade, 24-wind trough, 25-reduction housing, 26-Tai Yang gear, 27-planetary gear, 28-ring gear, 29-output rotating tube, 30-shaking power disk, 31-shaking shaft, 32-shaking guide tube, 33-shaking rod, 35-second connecting rod, 36-shaking transmission plate, 37-connecting support leg, 38-liquid-cooled heat absorber, 39-liquid-cooled relay chamber, 40-liquid-cooled radiator, 41-second one-way valve, 42-liquid cylinder, 43-piston rod, 44-liquid-cooled support seat, 45-liquid-cooled transmission pipe, 46-first transmission wheel, 47-second transmission wheel, 48-transmission belt, 49-sliding groove. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0018] As shown in the accompanying drawings, this solution provides an intelligently controlled medium-voltage switchgear cabinet, comprising a cabinet body, air-cooled heat sinks, and liquid-cooled heat sinks, both of which are mounted on the cabinet body. The cabinet body comprises an outer cabinet body and an inner cabinet body, with the inner cabinet body being mounted within the outer cabinet body.

[0019] The external cabinet body includes an external cabinet body 1 and a protective door 8. The external cabinet body 1 is used to support the internal cabinet body. The internal cabinet body includes an internal cabinet body 2, an air supply partition 3 and a cabinet partition 4. The size of the internal cabinet body 2 is smaller than that of the external cabinet body 1. The internal cabinet body 2 is generally in the shape of a rectangular groove with an opening facing forward. The bottom end face of the internal cabinet body 2 is fixedly arranged on the bottom end face of the external cabinet body 1 by a support leg, and can also be hung on the top face of the external cabinet body 1 by a hanger, so that a gap is left between the bottom face of the internal cabinet body 2 and the bottom face of the external cabinet body 1 to form a bottom air duct. The predetermined gap between the two side walls of the internal cabinet body 2 and the two side walls of the external cabinet body 1 constitutes a lateral air duct. The predetermined gap between the top face of the internal cabinet body 2 and the top face of the external cabinet body 1 constitutes a top air duct. The predetermined gap between the bottom of the internal cabinet body 2 groove, i.e., the back face, and the bottom face of the groove, i.e., the back face, of the external cabinet body 1 constitutes an air supply duct.

[0020] As an option, a heat-conducting support plate is provided between the outer side wall of the inner cabinet 2 and the inner side wall of the outer cabinet 1 in the lateral air duct. The heat-conducting support plate is in the shape of a rectangular plate. One side of the heat-conducting support plate is vertically fixed on the upper outer side wall of the inner cabinet 2, and the other side is vertically fixed on the inner side wall of the outer cabinet 1. The longitudinal direction of the heat-conducting support plate is perpendicular to the bottom surface of the outer cabinet 1. A plurality of the heat-conducting support plates are spaced apart to form an upward air duct. It should be noted that in the drawings of this specification, the heat-conducting support plates have been hidden in order to clearly show the liquid-cooled heat sink in the air supply duct.

[0021] The air supply partition plate 3 is in the shape of a rectangular frame. The inner ring of the air supply partition plate 3 is fixedly sealed and mounted on the side wall of the internal cabinet 2 near the bottom of the slot. The outer ring of the air supply partition plate 3 is fixedly sealed and embedded on the inner wall of the external cabinet 1 to separate the air supply duct from the side duct, top duct, and bottom duct respectively. At this time, the side ducts on both sides are connected with the bottom duct and the top duct. The side duct, the top duct, and the air supply duct are used to install the air-cooled heat sink and the liquid-cooled heat sink, and provide double-layer protection for the electrical components installed in the internal cabinet 2, thereby increasing the impact resistance of the internal cabinet 2 and preventing damage to the electrical components installed in the internal cabinet 2.

[0022] The cabinet partition plate 4 is arranged in the internal cabinet 2 to divide the internal cabinet 2 into a plurality of independently sealed electrical installation cavities. In this embodiment, two cabinet partition plates 4 are provided, and the two cabinet partition plates 4 are installed horizontally in the internal cabinet 2 along a vertical interval to divide the internal cabinet 2 into an upper electrical installation cavity 5, a middle electrical installation cavity 6, and a lower electrical installation cavity 7. It should be noted that the cabinet partition plate 4 can be flat or curved so that the internal space of the electrical installation cavity meets the requirements for the installation of electrical components. The cabinet partition plate 4 plays a sealing and separating role to prevent the heat generated by the electrical components in the electrical installation cavity of one layer from rising and affecting the heat dissipation of the electrical components in the upper electrical installation cavity. Moreover, the electrical components installed in the upper electrical installation cavity 5, the middle electrical installation cavity 6, and the lower electrical installation cavity 7 can be electrically connected to each other by being insulated through the cabinet partition plate 4. After the protective door 8 of the external cabinet is closed, the inner wall of the protective door 8 fits the notch of the internal cabinet 2 and the cabinet partition plate 4.

[0023] The air-cooled heat dissipation component includes an air-cooled power component, an air-cooled filter component and a filter dust removal component. The air-cooled power component is arranged on the external cabinet component, the filter dust removal component is arranged on the internal cabinet component, and the air-cooled filter component is arranged on the cabinet component. The air-cooled power component includes a heat dissipation axial flow fan 9. In this embodiment, the heat dissipation axial flow fan 9 is arranged on the top surface of the external cabinet 1, and the heat dissipation axial flow fan 9 is connected with the top air duct to discharge the hot air from the upper electrical installation cavity 5, the middle electrical installation cavity 6 and the lower electrical installation cavity 7 through the side air duct and the top air duct. In addition to this embodiment, the air-cooled power component can also use other types of fans such as appropriately assembled bladeless fans, centrifugal fans, or air pumps that blow air out of the cabinet.

[0024] The air-cooled filter element includes an external filter element and an internal filter element. The external filter element is arranged on the external cabinet 1, and the internal filter element is arranged on the internal cabinet 2. The structure of the external filter element is similar to that of the internal filter element, including an external filter support frame, an external filter screen and a first spring. One end of the external filter support frame is horizontally penetrated and arranged on the external vent 12 on the back of the external cabinet 1. The external vent 12 is used to transport cold air from the outside to the air supply duct. After one end of the external filter screen slides vertically downward through the top wall of the external filter support frame, the sliding seal extends to the bottom wall of the external filter support frame. In this embodiment, after the external filter screen slides vertically into the external filter support frame, the side of the external filter screen slides vertically in the slide groove on the inner wall of the external filter support frame, and the seal slides vertically, so that the external filter screen separates the two ends of the external filter support frame. One end of the first spring passes through the first through hole on the bottom wall of the external filter support frame and is fixedly connected to one end surface of the external filter screen. The other end of the first spring is fixedly connected to the external cabinet 1 to pull the external filter screen downward.

[0025] The internal filter element includes an internal sliding filter element and an air volume control element. The internal sliding filter element is arranged on the internal cabinet 2, and the air volume control element is arranged on the internal sliding filter element. The internal sliding filter element includes an internal filter support frame 14, an internal filter screen 15, and a second spring 16. One end of the internal filter support frame 14 is horizontally penetrated and arranged on the internal vent on the back of the internal cabinet 2. The internal vent is used to guide the cold air in the air supply duct into the electrical installation cavity of the internal cabinet 2. After one end of the internal filter screen 15 vertically slides through the top wall of the internal filter support frame 14, the sliding seal extends to the bottom wall of the internal filter support frame 14. In this embodiment, after the internal filter screen 15 vertically slides through the internal filter support frame 14, the side of the internal filter screen 15 slides vertically in the slide groove on the side wall of the internal filter support frame 14, so that the internal filter screen 15 separates the two ends of the internal filter support frame 14. One end of the second spring 16 passes through the second through hole on the bottom wall of the internal filter support frame 14 and is fixedly connected to one end surface of the internal filter screen 15. The other end of the second spring 16 is fixedly connected to the internal cabinet 2 to pull the internal filter screen 15 downward.

[0026] The air volume control member includes an air volume intercepting plate 17 and an automatic telescopic rod 18. The air volume intercepting plate 17 slides horizontally at one end near the internal vent, passes through a side wall of the internal filter support frame 14, and then slides into the internal filter support frame 14 to control the area of ​​the air volume intercepting plate 17 at both ends. The automatic telescopic rod 18 is fixedly connected to the other end of the air volume intercepting plate 17 at one end, and is fixedly mounted horizontally on the internal cabinet 2 along the side wall to push the air volume intercepting plate 17 into the internal filter support frame 14. The rod 18 automatically controls the amount of cooling air flowing into the upper electrical installation cavity 5, the middle electrical installation cavity 6, and the lower electrical installation cavity 7 based on the temperatures detected by temperature sensors disposed in the upper electrical installation cavity 5, the middle electrical installation cavity 6, and the lower electrical installation cavity 7, thereby realizing an intelligent air cooling solution for different temperature chambers, thereby improving air cooling efficiency and the overall operating efficiency of the electrical components in the internal cabinet 2.

[0027] In this solution, multiple sets of internal filters are provided, corresponding one-to-one to the electrical installation cavities. In this embodiment, three sets of internal filters are provided, and the three sets of internal filters correspond one-to-one to the number of three chambers separated by the two cabinet partition plates 4 in the internal cabinet 2. The three sets of internal filters are respectively provided on the upper electrical installation cavity 5, the middle electrical installation cavity 6 and the lower electrical installation cavity 7 to control the amount of cold air delivered by the air supply duct to multiple chambers.

[0028] It should be noted that the flow direction of the cold air sucked in from the outside in the external cabinet 1 and the internal cabinet 2 is as follows: after the heat dissipation axial fan 9 is started, the cold air enters the air supply duct from the external vent 12 through the external filter element, and then intelligently coordinates the amount of cold air entering the upper electrical installation cavity 5, the middle electrical installation cavity 6 and the lower electrical installation cavity 7 through multiple sets of internal filter elements according to the temperature in the upper electrical installation cavity 5, the middle electrical installation cavity 6 and the lower electrical installation cavity 7, thereby improving the air cooling efficiency; the cold air entering the upper electrical installation cavity 5, the middle electrical installation cavity 6 and the lower electrical installation cavity 7 cools the electrical components installed therein, and then is discharged to the side air ducts on both sides through the exhaust relay holes 19 on the side walls of the upper electrical installation cavity 5, the middle electrical installation cavity 6 and the lower electrical installation cavity 7, and then is discharged from the heat dissipation axial fan 9 through the side air ducts and the top air duct.

[0029] The filtering dust removal component includes a filtering dust removal power component and a shaking dust removal component, both of which are arranged on the internal cabinet 2. The filtering dust removal power component includes a wind power component and a speed reduction output component, both of which are also arranged on the internal cabinet 2.

[0030] The wind power component described in this embodiment includes a rotating support tube 20, a rotating shaft 21, an air guide plate and a fan blade 23. The rotating support tube 20 is horizontally fixedly arranged on one end of the wind trough 24 at the top corner of the internal cabinet 2, and the axis of the rotating support tube 20 coincides with the axis of the wind trough 24. The wind trough 24 is in the shape of an arc trough and is concave into the internal cabinet 2. The two rotating support tubes 20 are arranged one by one at both ends of the wind trough 24. One end of the rotating shaft 21 rotates to pass through a rotating support tube 20, and the other end of the rotating shaft 21 rotates to pass through the other rotating support tube 20. The air guide plate is in the shape of an arc plate, and the air guide plate is embedded in the top corner of the external cabinet 1, and the axis of the air guide plate coincides with the axis of the wind trough 24. The fan blade 23 is in the shape of a rectangular plate, and one side of the fan blade 23 is fixedly arranged on the side wall of the rotating shaft 21. In this embodiment, the four fan blades 23 are evenly distributed around the rotating shaft 21. When the airflow heated by the electrical components in the side duct enters the top duct, it pushes the blades 23 to rotate the rotating shaft 21. It should be noted that the power that pushes the blades 23 to rotate includes the negative pressure provided by the heat dissipation axial fan 9 and the rapidly rising airflow after absorbing heat and expanding.

[0031] In this embodiment, the reduction output component includes a reduction housing 25, a sun gear 26, planetary gears 27, a ring gear 28, and an output rotating tube 29. The reduction housing 25 is in the shape of a circular groove, the bottom of which is fixedly mounted on one end of the rotating support tube 20. The sun gear 26 is fixedly mounted on the rotating shaft 21. The planetary gears 27 are mounted on the reduction housing 25 via a planet carrier, and mesh with the sun gear 26. The ring gear 28 is rotatably mounted within the groove of the reduction housing 25 and meshes with the planetary gears 27. The large end of the output rotating tube 29 is fixedly mounted on the free end surface of the ring gear 28, and the axis of the output rotating tube 29 coincides with the axis of the sun gear 26, thereby reducing the speed and outputting the work outward.

[0032] The two sets of filtering and dust removal power components are provided, and the two sets of filtering and dust removal power components are symmetrically distributed one by one in the two lateral air ducts located on both sides. It should be noted that the filtering and dust removal power components can provide power for the shaking dust removal component while also providing power for the flow of the liquid cooling heat sink.

[0033] The shaking dust removal component includes a shaking power component and a shaking transmission component. The shaking power component is arranged on the deceleration output component, and the shaking transmission component is arranged on the internal cabinet 2. The shaking power component includes a shaking power disk 30 and a shaking shaft 31. The shaking power disk 30 is disc-shaped and is fixedly sleeved on the small head of the output rotating tube 29 and moves with it. One end of the shaking shaft 31 is fixedly arranged on the edge of the end face of the shaking power disk 30.

[0034] The shaking transmission component includes a shaking guide tube 32, a shaking rod 33, a first connecting rod, a second connecting rod 35 and a shaking transmission plate 36. The shaking guide tube 32 is vertically fixedly connected to the internal cabinet 2 through a connecting leg 37. One end of the shaking rod 33 is axially slidably embedded in the shaking guide tube 32. One end of the first connecting rod is connected to the shaking rod 33, and the other end is connected to the top of the external filter screen. One end of the second connecting rod 35 is connected to the shaking rod 33, and the other end is connected to the top of the internal filter screen 15. Multiple second connecting rods 35 correspond to multiple internal filter screens 15 one by one. The shaking transmission plate 36 is in the shape of a long strip. One end of the shaking transmission plate 36 is horizontally fixedly set on the top of the shaking rod 33, and the other end extends to the shaking power disk 30. The inclined surface on the other end of the shaking transmission plate 36 corresponds to the shaking shaft 31.

[0035] When the shaking power disk 30 rotates with the output rotating tube 29, it will drive the shaking shaft 31 to rotate. When the shaking shaft 31 rotating circumferentially with the shaking power disk 30 vertically lifts the inclined surface at the other end of the shaking transmission plate 36, it will drive the shaking transmission plate 36 to move upward. The shaking transmission plate 36 drives the external filter screen and the internal filter screen 15 to lift up to a predetermined height through the shaking rod 33, the first connecting rod and the second connecting rod 35; when the shaking shaft 31 is disengaged from the inclined surface of the shaking transmission plate 36, the external filter screen and the internal filter screen 15 will be pulled downward quickly and hit the bottom wall of the external filter support frame and the internal filter support frame 14 by the tension of the first spring and the second spring 16 and their own weight, so as to realize the up and down shaking of the external filter screen and the internal filter screen 15, so that the dust blocked in the external filter screen and the internal filter screen 15 can be separated, thereby improving the cold air intake efficiency and the air cooling and heat dissipation efficiency.

[0036] The liquid-cooled heat sink includes a liquid-cooled heat sink, a liquid-cooled power transmission component, and a liquid-cooled power component. The liquid-cooled heat sink and the liquid-cooled power component are both mounted on the cabinet, with the liquid-cooled power transmission component mounted on the liquid-cooled heat sink. In this embodiment, the liquid-cooled heat sink includes a liquid-cooled heat sink 38, a liquid-cooled relay chamber 39, and a liquid-cooled radiator 40. The liquid-cooled heat sink 38 is mounted on the side wall of the internal cabinet 2 to cool the internal electrical components through the side wall of the internal cabinet 2. Alternatively, the liquid-cooled heat sink 38 is formed of an S-shaped tube and is mounted on the side wall of the internal cabinet 2. The liquid-cooled relay chamber 39 is in the shape of a sealed rectangular box and is fixedly mounted on the side wall of the internal cabinet 2. A first one-way valve is provided through one end of the liquid-cooled heat sink 38, and the liquid-cooled heat sink 38 is connected to the liquid-cooled relay chamber 39 through the first one-way valve. Furthermore, the first one-way valve is used to direct the coolant in the liquid-cooled heat absorber 38 to the liquid-cooled relay chamber 39. The liquid-cooled radiator 40 is fixedly mounted on the outer wall of the external cabinet 1, and a second one-way valve 41 is provided through one end of the liquid-cooled radiator 40. The liquid-cooled radiator 40 is connected to the liquid-cooled relay chamber 39 via the second one-way valve 41. The second one-way valve 41 is used to direct the coolant in the liquid-cooled relay chamber 39 to the liquid-cooled radiator 40. The other end of the liquid-cooled radiator 40 is connected through the other end of the liquid-cooled heat absorber 38.

[0037] The liquid-cooled power transmission component includes a liquid cylinder 42, a piston rod 43, and a sealing piston. The liquid cylinder 42 is in the shape of a circular tube with one end face closed and the other end face open. The side wall of one end of the liquid cylinder 42 is fixedly arranged on the top surface of the liquid-cooled relay chamber 39, and the first water pressure through hole on the side wall of one end of the liquid cylinder 42 is sealed and connected with the second water pressure through hole on the top surface of the liquid-cooled relay chamber 39. The diameter of the piston rod 43 is smaller than the inner diameter of the liquid cylinder 42. The sealing piston is fixedly arranged on one end of the piston rod 43. The sealing piston is slidingly embedded in the tube at the other end of the liquid cylinder 42. When the piston rod 43 drives the sealing piston to slide axially to the right in the liquid cylinder 42, the hydraulic pressure in the liquid-cooled relay chamber 39 will be reduced to suck the coolant in the liquid-cooled heat absorber 38 into the liquid-cooled relay chamber 39 and the liquid cylinder 42. When the piston rod 43 drives the sealing piston to slide axially to the left in the liquid cylinder 42, the hydraulic pressure in the liquid cooling relay chamber 39 will increase, so that the coolant in the liquid cooling relay chamber 39 and the liquid cylinder 42 will flow to the liquid cooling radiator 40 for heat dissipation and cooling, and at the same time, the cooled coolant will flow from the liquid cooling radiator 40 to the liquid cooling heat absorber 38.

[0038] The liquid-cooling power component includes a liquid-cooling support seat 44, a liquid-cooling transmission pipe 45, a first transmission wheel 46, a second transmission wheel 47 and a transmission belt 48. The liquid-cooling support seat 44 is fixedly arranged on the inner wall of the external cabinet 1, and the liquid-cooling transmission pipe 45 is rotatably arranged on the liquid-cooling support seat 44, and the liquid-cooling transmission pipe 45 is axially slidably fitted on the other end of the piston rod 43, and at the same time, the sliding groove 49 on the inner wall of the liquid-cooling transmission pipe 45 is fitted on the sliding block on the side wall of the other end of the piston rod 43. The sliding groove 49 is distributed in a curve along the axial direction on the inner wall of the liquid-cooling transmission pipe 45. This allows the liquid-cooling transmission pipe 45 to rotate circumferentially and be axially locked on the liquid-cooling support seat 44. When the liquid-cooling transmission pipe 45 rotates circumferentially 180 degrees, it will drive the piston rod 43 to rotate. Figure 13 The liquid-cooling transmission tube 45 rotates from the leftmost side to the rightmost side. When the liquid-cooling transmission tube 45 continues to rotate 360 ​​degrees, it drives the piston rod 43 from the rightmost side to the leftmost side. This continuous unidirectional rotation of the liquid-cooling transmission tube 45 drives the piston rod 43 to axially reciprocate. The first transmission wheel 46 is fixedly mounted on the liquid-cooling transmission tube 45, and the second transmission wheel 47 is fixedly mounted on the output rotating tube 29. The transmission belt 48 is also mounted on the first transmission wheel 46 and the second transmission wheel 47.

[0039] Two sets of liquid-cooled heat sinks are provided, and the two sets of liquid-cooled heat sinks are symmetrically distributed one by one on the two lateral air ducts on both sides to increase the liquid-cooled heat dissipation efficiency of the internal cabinet 2.

[0040] In the description of this specification, the schematic diagrams in the accompanying drawings highlight the main features and key parts of the figures, and appropriately simplify or omit the details, and therefore do not represent the proportions and dimensional relationships in reality. The descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in an appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0041] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A medium-voltage switchgear with intelligent temperature control, comprising a cabinet having an outer cabinet member and an inner cabinet member, wherein the inner cabinet member is used to mount electrical components within the outer cabinet member, characterized in that: The cooling fan is installed on the outer cover of the cooling fan, and the cooling fan is connected with the filter element to filter the cooling air flowing into the cooling fan.

2. The medium-voltage switchgear with intelligent temperature control according to claim 1, characterized in that: The internal cabinet part comprises an internal cabinet (2) and a cabinet partition plate (4), and the external cabinet part comprises an external cabinet (1), wherein the cabinet partition plate (4) is installed in the internal cabinet (2) to divide the internal cabinet into independent electrical installation cavities; a bottom air duct is provided between the bottom surface of the internal cabinet (2) and the bottom surface of the external cabinet (1); side air ducts are provided between the two side walls of the internal cabinet and the two side walls of the external cabinet; a top air duct is provided between the top surface of the internal cabinet and the top surface of the external cabinet; an air supply duct is provided between the back surface of the internal cabinet (2) and the back surface of the external cabinet (1), and the air supply duct is separated from the bottom air duct, the top air duct and the side air duct; the number of the internal filter elements corresponds to the electrical installation cavities.

3. The medium-voltage switchgear with intelligent temperature control according to claim 1, characterized in that: The air-cooled power part uses a heat dissipation axial flow fan (9), and the heat dissipation axial flow fan (9) is installed on the top surface of the external cabinet (1).

4. The medium voltage switchgear with condition monitoring function according to claim 1, characterized in that: The internal filter element comprises an internal sliding filter element and an air volume control element, wherein the internal sliding filter element is used to filter the cold air entering the internal cabinet (2); a temperature sensor is provided in each of the electrical installation cavities, and the air volume control element is installed on the internal sliding filter element and is used to automatically adjust and control the flow rate of the cold air entering the electrical installation cavity according to the temperature sensed by the temperature sensor in the electrical installation cavity.

5. The medium-voltage switchgear with intelligent temperature control according to claim 4, characterized in that: The filtering dust removal element comprises a filtering dust removal power element and a shaking dust removal element. The filtering dust removal power element is installed on the internal cabinet (2) and is driven by the airflow after absorbing heat and heating to rotate. The rotating filtering dust removal power element drives the connected external filter element and the internal sliding filter element to shake up and down to remove dust through the shaking dust removal element.

6. The medium-voltage switchgear with intelligent temperature control according to claim 5, characterized in that: The filtering and dust removal power component includes a wind power component and a deceleration output component. The wind power component is driven by the airflow after absorbing heat and heating to rotate. The deceleration output component is installed on the wind power component and is used to decelerate the rotational force of the wind power component to increase the torque and then transmit power to the shaking dust removal component and the liquid cooling power component.

7. The medium voltage switchgear with intelligent temperature control according to claim 5 or 6, characterized in that: The shaking dust removal component includes a shaking power component and a shaking transmission component that are connected to each other. The shaking power component is installed on the deceleration output component and is used to drive the external filter component and the internal sliding filter component to shake up and down to remove dust through the shaking transmission component.

8. The medium-voltage switchgear with intelligent temperature control according to any one of claims 2 to 6, characterized in that: The liquid-cooled heat absorbing and dissipating element comprises a liquid-cooled heat absorber (38), a liquid-cooled relay chamber (39) and a liquid-cooled radiator (40); the liquid-cooled heat absorber (38) is arranged on the inner cabinet (2); the liquid-cooled relay chamber (39) is arranged on the side wall of the inner cabinet (2); one end of the liquid-cooled heat absorber (38) is connected to the liquid-cooled relay chamber (39) through a first one-way valve; the liquid-cooled radiator (40) is arranged on the outer side wall of the outer cabinet (1); and one end of the liquid-cooled radiator (40) is connected to the liquid-cooled relay chamber (39) through a second one-way valve (41); the other end of the liquid-cooled radiator (40) is connected to the other end of the liquid-cooled heat absorber (39).

9. The medium-voltage switchgear with intelligent temperature control according to claim 8, characterized in that: The liquid-cooled power transmission component includes a liquid cylinder (42), a piston rod (43) and a sealing piston. The side wall of one end of the liquid cylinder is set on the top surface of the liquid-cooled relay chamber (39). The sealing piston is set on one end of the piston rod (43). The sealing piston is slidably embedded in the tube at the other end of the liquid cylinder (42).

10. The medium voltage switchgear with intelligent temperature control according to claim 9, characterized in that: The liquid-cooling power component includes a liquid-cooling support seat (44), a liquid-cooling transmission tube (45), a first transmission wheel (46), a second transmission wheel (47) and a transmission belt (48). The liquid-cooling support seat (44) is arranged on the external cabinet (1), the liquid-cooling transmission tube (45) is rotatably arranged on the liquid-cooling support seat (44), and the liquid-cooling transmission tube (45) is axially slidably fitted on the other end of the piston rod (43), and at the same time, the sliding groove (49) on the inner wall of the liquid-cooling transmission tube (45) is fitted on the sliding block on the side wall of the other end of the piston rod (43); the first transmission wheel (46) is fitted on the liquid-cooling transmission tube (45), the second transmission wheel (47) is fitted on the deceleration output component, and the transmission belt (48) is fitted on the first transmission wheel (46) and the second transmission wheel (47) at the same time.

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