Power distribution cabinet for smart power grid

Abstract

The invention discloses a power distribution cabinet for an intelligent power grid, and relates to the technical field of power distribution cabinets, the power distribution cabinet comprises a power distribution cabinet body and a sandwich plate, the sandwich plate is fixedly installed on the top surface of the power distribution cabinet body, a positioning ring is installed on the top surface of the power distribution cabinet body, and a connecting plate is arranged on the outer side surface of the positioning ring; a rotating bearing is fixedly mounted on the surface of one side of the connecting plate; temperature rise is sensed through a temperature sensor, a driving motor is used for releasing a winding wire and matched with the gravity of a balancing weight to enable a telescopic pipe to stretch out section by section to directly reach a heat source, and the driving motor is synchronously used for driving a rotating pipe with a reciprocating groove to rotate through a bevel gear, so that a sliding block and a driving rod generate linear reciprocating displacement; the clamping teeth are meshed with the gear to drive the swing ring and the telescopic pipe to perform fan-shaped scanning, and negative pressure suction of the fan is matched, so that a dead-angle-free active heat dissipation effect is achieved, and the defect that in the prior art, airflow generated by a fixed fan is difficult to permeate to the rear of a busbar or a gap of a switch block, and consequently heat dissipation dead angles are formed due to local heat accumulation is overcome.

Description

Technical Field

[0001] This invention relates to the field of power distribution cabinet technology, and more particularly to a power distribution cabinet for smart grids. Background Technology

[0002] With the continuous advancement of smart grid construction, distribution cabinets, as a core component of the power system, are increasingly housing more and more electrical components, resulting in ever-increasing power density. Because distribution cabinets integrate a large number of circuit breakers, instrument transformers, busbars, and various intelligent control modules, these components generate a significant amount of heat during operation. If the heat accumulated inside the cabinet cannot be dissipated in a timely and effective manner, it will lead to accelerated aging of electronic components, decreased insulation performance of equipment, and even serious electrical fires.

[0003] Existing smart grid distribution cabinets mainly adopt a solution of installing fixed cooling fans on the top or side of the cabinet. These fans are activated by temperature sensing to force the hot air inside to be discharged through convection. However, this static cooling method has obvious limitations in actual operation. First, due to the dense wiring and complex structure of the components inside the cabinet, the airflow generated by the fixed fan is difficult to penetrate to the back of the busbar or the gap between the switch groups, resulting in local heat accumulation and the formation of heat dissipation dead zones. Second, the position of the fixed air intake cannot be adjusted according to the distribution of heat sources, making it difficult to actively and closely collect heat from the core heat-generating components deep inside, resulting in a significant decrease in heat dissipation efficiency with increasing spatial depth. To address the aforementioned technical shortcomings, a solution is proposed. Summary of the Invention

[0004] The purpose of this invention is to: detect temperature rise using a temperature sensor, use a drive motor to release the winding cable and, with the help of the counterweight, extend the telescopic tube section by section directly to the heat source; simultaneously, use the drive motor via helical gears to drive the rotating tube with reciprocating grooves to rotate, causing the slider and drive rod to move linearly back and forth, and drive the swing ring and telescopic tube to perform fan-shaped scanning through the meshing gears, combined with the negative pressure suction of the fan, to achieve an active heat dissipation effect without dead angles. This overcomes the shortcomings of existing technologies where the airflow generated by the fixed fan cannot penetrate to the back of the busbar or the gap of the switch group, resulting in local heat accumulation and forming heat dissipation dead angles, and the fixed air intake position cannot be adjusted according to the distribution of the heat source, making it difficult to achieve active, close-range collection of core heat-generating components deep inside, resulting in a significant decrease in heat dissipation efficiency with increasing spatial depth.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a power distribution cabinet for a smart grid, comprising a power distribution cabinet body and a mezzanine plate, wherein the mezzanine plate is fixedly installed on the top surface of the power distribution cabinet body, a positioning ring is installed on the top surface of the power distribution cabinet body, a connecting plate is provided on the outer surface of the positioning ring, a rotary bearing is fixedly installed on one side surface of the connecting plate, a rocking ring is fixedly installed on the outer surface of the rotary bearing, a rotating groove is formed on the outer surface of the rocking ring, a driven shaft is fixedly installed on the outer surface of the rocking ring, a driven gear is fixedly installed at one end of the driven shaft, a heat source collection assembly is installed on the inner wall of the rocking ring, and a control mechanism is installed on the top surface of the power distribution cabinet body; The heat source collection assembly includes a telescopic tube with an suction hole on its outer surface and a counterweight on its bottom surface. A bracket is fixedly installed on the inner wall of the telescopic tube, and a winding cord is fixedly installed on the inner wall of the bracket. A positioning ring is fixedly installed on the inner wall of the telescopic tube, and the outer surface of the telescopic tube is in movable contact with the inner wall of the swing ring.

[0006] Furthermore, there are two connecting plates, which are equidistantly distributed on the outer surface of the positioning ring. The rotary bearing is distributed on one side surface of one of the connecting plates. The connecting plate is rotatably connected to the rocker ring through the rotary bearing. There are two rotating grooves equidistantly distributed on the outer surface of the rocker ring. The driven shaft is rotatably connected to the connecting plate.

[0007] Furthermore, there are several suction holes, which are equidistantly distributed in a ring array on the outer surface of the telescopic tube. There are several positioning rings distributed in a linear array on the inner wall of the telescopic tube. One end of the winding wire passes through several positioning rings, and the end of the winding wire is fixedly connected to the top surface of the bracket.

[0008] Furthermore, the control mechanism includes a drive assembly and a winding assembly. The drive assembly includes a drive motor, which is fixedly mounted on the top surface of the distribution cabinet body. A helical gear shaft is fixedly mounted on the output end of the drive motor. A positioning bearing is fixedly mounted on the top surface of the distribution cabinet body. A driven helical gear is fixedly mounted on the inner wall of the positioning bearing. A rotating tube is mounted on the inner wall of the positioning bearing. A reciprocating groove is formed on the inner wall of the rotating tube. A drive rod is slidably mounted on the inner wall of the rotating tube. A slider is fixedly mounted on the outer surface of the drive rod. A contact plate is mounted on the end of the drive rod. The inner wall of the contact plate is provided with locking teeth.

[0009] Furthermore, the driven helical gear is rotatably connected to the power distribution cabinet body through a positioning bearing, the driven helical gear meshes with the helical gear shaft, the outer surface of the slider slides in contact with the inner wall of the reciprocating groove, the locking teeth are a number of linearly arrayed and equidistantly distributed on the inner wall of the contact plate, and the contact plate is in active contact with the outer surface of the driven shaft.

[0010] Furthermore, the winding assembly includes a temperature sensor, which is fixedly installed on one side of the inner wall of the power distribution cabinet body. A controller is fixedly installed on one side of the inner wall of the power distribution cabinet body. A positioning frame is fixedly installed on the top surface of the power distribution cabinet body. A take-up reel is rotatably installed on the top surface of the positioning frame. A drive motor is fixedly installed on one side of the positioning frame. A cooling fan is installed on the top surface of the positioning frame.

[0011] Furthermore, the temperature sensor is electrically connected to the controller, the controller is electrically connected to the drive motor, the controller is electrically connected to the drive motor, the outer surface of the take-up reel is fixedly connected to one end of the take-up wire, the output end of the drive motor is fixedly connected to one end of the take-up reel, the inner wall of the positioning frame is fixedly connected to one end of the telescopic tube, and the inner wall of the positioning frame is fixedly connected to one end of the telescopic tube.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: This smart grid distribution cabinet uses a temperature sensor to detect temperature rise. A drive motor releases the winding cable, and the counterweight extends the telescopic tube section by section directly to the heat source. Simultaneously, the drive motor, via a helical gear, rotates a reciprocating tube, causing the slider and drive rod to move linearly back and forth. Through a meshing gear, the swing ring and telescopic tube perform a fan-shaped scan. Combined with the negative pressure suction of the fan, this achieves active heat dissipation without dead angles. This overcomes the shortcomings of existing technologies where fixed fans cannot penetrate to the back of the busbar or the gap between switchgear, leading to localized heat accumulation and heat dissipation dead angles. Furthermore, the fixed air intake position cannot be adjusted according to the heat source distribution, making it difficult to actively and closely collect heat from deep, core heat-generating components, resulting in a significant decrease in heat dissipation efficiency with increasing spatial depth. Attached Figure Description

[0013] Figure 1 A schematic diagram of the overall external structure of the present invention is shown; Figure 2 This invention is shown as a schematic diagram of its overall external structure from another angle. Figure 3 A schematic diagram of the overall internal structure of the present invention is shown; Figure 4 This diagram shows another angle of the overall internal structure of the present invention; Figure 5 A schematic diagram of the internal structure of the telescopic tube of the present invention is shown; Figure 6 A schematic diagram of another corner of the internal structure of the telescopic tube of the present invention is shown; Figure 7 A schematic diagram of the heat source collection component structure of the present invention is shown; Figure 8 A schematic diagram of another corner of the heat source collection component of the present invention is shown; Figure 9 A schematic diagram of the contact plate structure of the present invention is shown; Figure 10 The present invention is shown. Figure 2 Enlarged schematic diagram of the structure at point A in the middle; Figure 11 The present invention is shown. Figure 7 Enlarged schematic diagram of the B-structure.

[0014] Legend: 1. Distribution cabinet body; 101. Mezzanine plate; 102. Positioning ring; 103. Connecting plate; 104. Rotary bearing; 105. Swing ring; 106. Rotary groove; 107. Driven shaft; 108. Driven gear; 2. Telescopic tube; 201. Suction hole; 202. Counterweight; 203. Bracket; 204. Winding cable; 205. Positioning ring; 3. Drive motor; 301. Helical gear shaft; 302. Positioning bearing; 303. Driven helical gear; 304. Rotary tube; 305. Reciprocating groove; 306. Drive rod; 307. Slider; 308. Contact plate; 309. Clamping tooth; 4. Temperature sensor; 401. Controller; 402. Positioning frame; 403. Winding reel; 404. Drive motor; 405. Cooling fan. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] It should be noted that, in the description of this invention, the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0017] like Figures 1-11 As shown, a smart grid distribution cabinet includes a cabinet body 1 and a mezzanine plate 101. The mezzanine plate 101 is fixedly installed on the top surface of the cabinet body 1. A positioning ring 102 is installed on the top surface of the cabinet body 1. A connecting plate 103 is provided on the outer surface of the positioning ring 102. There are two connecting plates 103, which are equidistantly distributed on the outer surface of the positioning ring 102. The connecting plates 103 are rotatably connected to a swing ring 105 through a rotary bearing 104. A rotary bearing 104 is fixedly installed on one side surface of the connecting plate 103. A swing ring 105 is fixedly installed on the outer surface of a rotating bearing 104 on one side of a connecting plate 103. A rotating groove 106 is formed on the outer surface of the swing ring 105. The rotating groove 106 consists of two equally spaced grooves on the outer surface of the swing ring 105. A driven shaft 107 is fixedly installed on the outer surface of the swing ring 105. The driven shaft 107 is rotatably connected to the connecting plate 103. A driven gear 108 is fixedly installed at one end of the driven shaft 107. A heat source collection assembly is installed on the inner wall of the swing ring 105. A control mechanism is installed on the top surface of the power distribution cabinet body 1.

[0018] In this embodiment of the invention, since the inner wall of the contact plate 308 is provided with a number of linearly arrayed locking teeth 309, these locking teeth 309 maintain a physical meshing state with the driven gear 108 at the end of the driven shaft 107. The linear reciprocating motion of the contact plate 308 is transformed into the periodic forward and reverse rotation of the driven shaft 107 through the meshing action of the locking teeth 309 and the gear. This drives the swing ring 105 fixed on the driven shaft 107 to swing angularly around the axis of the rotating bearing 104. Since the outer surface of the telescopic tube 2 is in active contact with the inner wall of the swing ring 105, the swing of the swing ring 105 is directly transmitted to the telescopic tube 2, so that it generates a fan-shaped scanning heat dissipation path inside the distribution cabinet. The dynamic displacement of the suction hole 201 breaks the airflow dead angle generated by traditional static heat dissipation.

[0019] Reference Figures 1-11 Specifically, the heat source collection component includes a telescopic tube 2. A plurality of suction holes 201 are provided on the outer surface of the telescopic tube 2, arranged in a ring array and equidistantly distributed on the outer surface of the telescopic tube 2. A counterweight 202 is installed on the bottom surface of the telescopic tube 2. A bracket 203 is fixedly installed on the inner wall of the telescopic tube 2. A winding wire 204 is fixedly installed on the inner wall of the bracket 203. The end of the winding wire 204 is fixedly connected to the top surface of the bracket 203. One end of the winding wire 204 passes through a plurality of positioning rings 205. Positioning rings 205 are fixedly installed on the inner wall of the telescopic tube 2, arranged in a linear array on the inner wall of the telescopic tube 2. The outer surface of the telescopic tube 2 is in contact with the inner wall of the swing ring 105.

[0020] In this embodiment of the invention, since a counterweight 202 with sufficient gravity is physically installed on the bottom surface of the telescopic tube 2, under the direct action of the gravity of the counterweight 202, the originally stacked telescopic tube 2 begins to fall naturally downward from the positioning ring 102 position at the top of the distribution cabinet due to the downward traction force of the counterweight 202. At this time, the other end of the winding cable 204 passes through several positioning rings 205 distributed in a linear array on the inner wall of the telescopic tube 2 in sequence, and is finally fixed on the bracket 203 at the end of the telescopic tube 2. These positioning rings 205 distributed on the inner wall play a key physical limiting and cable binding role during the extension process, ensuring that the winding cable 204 is always in the central axis area of ​​the telescopic tube 2, preventing the cable from being disorderly entangled with the tube wall. As the telescopic tube 2 extends completely toward the heat source center in the middle of the distribution cabinet, several suction holes 201 distributed in a ring array at equal intervals on its outer surface are located on one side surface of the core heating element.

[0021] Reference Figures 1-11 Specifically, the control mechanism includes a drive assembly and a winding assembly. The drive assembly includes a drive motor 3, which is fixedly mounted on the top surface of the distribution cabinet body 1. A helical gear shaft 301 is fixedly mounted on the output end of the drive motor 3. A positioning bearing 302 is fixedly mounted on the top surface of the distribution cabinet body 1. A driven helical gear 303 is fixedly mounted on the inner wall of the positioning bearing 302. The driven helical gear 303 meshes with the helical gear shaft 301. The driven helical gear 303 is rotatably connected to the distribution cabinet body 1 through the positioning bearing 302. A rotating tube 304 is installed on the inner wall. A reciprocating groove 305 is opened on the inner wall of the rotating tube 304. A drive rod 306 is slidably installed on the inner wall of the rotating tube 304. A slider 307 is fixedly installed on the outer surface of the drive rod 306. The outer surface of the slider 307 slides in contact with the inner wall of the reciprocating groove 305. A contact plate 308 is installed at the end of the drive rod 306. The contact plate 308 is in movable contact with the outer surface of the driven shaft 107. A locking tooth 309 is provided on the inner wall of the contact plate 308. The locking tooth 309 consists of several teeth arranged in a linear array and equidistantly distributed on the inner wall of the contact plate 308.

[0022] In this embodiment of the invention, the helical gear shaft 301 at the output end of the drive motor 3 rotates and drives the driven helical gear 303 meshing with it. Supported by the positioning bearing 302, the driven helical gear 303 drives the rotating tube 304 to continuously rotate on the top layer of the distribution cabinet. At this time, the reciprocating groove 305 on the inner wall of the rotating tube 304 acts as a spatial motion trajectory constraint, forcing the slider 307, which is slidably mounted on the inner wall of the rotating tube 304, to reciprocate along the spiral path of the reciprocating groove 305. This causes the drive rod 306, which is fixedly connected to the slider 307, to generate regular reciprocating linear motion on the horizontal guide path. The contact plate 308 installed at the end of the drive rod 306 then generates synchronous forward and backward displacement. Because the contact plate 308... The inner wall is provided with several linearly arrayed locking teeth 309. These locking teeth 309 maintain physical meshing with the driven gear 108 at the end of the driven shaft 107. The linear reciprocating motion of the contact plate 308 is converted into the periodic forward and reverse rotation of the driven shaft 107 through the meshing action of the locking teeth 309 and the gear. This drives the swing ring 105 fixed on the driven shaft 107 to swing angularly around the axis of the rotating bearing 104. Since the outer surface of the telescopic tube 2 is in active contact with the inner wall of the swing ring 105, the swing of the swing ring 105 is directly transmitted to the telescopic tube 2, so that it generates a fan-shaped scanning heat dissipation path inside the distribution cabinet. The dynamic displacement of the suction hole 201 breaks the airflow dead zone generated by traditional static heat dissipation.

[0023] Reference Figures 1-11 Specifically, the winding assembly includes a temperature sensor 4, which is electrically connected to a controller 401. The temperature sensor 4 is fixedly installed on one side of the inner wall of the distribution cabinet body 1. The controller 401 is fixedly installed on one side of the inner wall of the distribution cabinet body 1. The controller 401 is electrically connected to a drive motor 404 and a drive motor 3. A positioning frame 402 is fixedly installed on the top surface of the distribution cabinet body 1. The inner wall of the positioning frame 402 is fixedly connected to one end of the telescopic tube 2. A take-up reel 403 is rotatably installed on the top surface of the positioning frame 402. The outer surface of the take-up reel 403 is fixedly connected to one end of the winding wire 204. A drive motor 404 is fixedly installed on one side of the positioning frame 402. The output end of the drive motor 404 is fixedly connected to one end of the take-up reel 403. A cooling fan 405 is installed on the top surface of the positioning frame 402.

[0024] In this embodiment of the invention, when the distribution box is in normal operation, the temperature sensor 4 installed on one side of the inner wall of the distribution cabinet body 1 will detect the air temperature of the cabinet environment in real time at a preset frequency, and convert the sensed heat signal into an electrical signal and transmit it to the controller 401. When the temperature inside the distribution cabinet gradually rises due to the high load operation of the components and reaches the preset first-level high temperature threshold, the controller 401 will control the cooling fan 405 installed on the top surface of the positioning frame 402 to start first according to the internal logic instructions. The high-speed rotation of the impeller of the cooling fan 405 generates a strong upward negative pressure suction force, which causes the high temperature air accumulated inside the distribution cabinet to be passively drawn upward from the inner wall of the telescopic tube 2, which is in the initial folded and contracted state. The sucked-in hot air is then discharged into the cavity inside the sandwich plate 101 fixed at the top of the distribution cabinet body 1. The buffer space of the sandwich plate 101 is used for air diversion, and finally the hot air is evenly discharged from the exhaust grille on the side of the sandwich plate 101, completing the initial forced convection cooling.

[0025] Specific usage process: When the distribution box is in normal operation, the temperature sensor 4 installed on one side of the inner wall of the distribution cabinet body 1 will detect the air temperature of the cabinet environment in real time at a preset frequency, and convert the sensed heat signal into an electrical signal and transmit it to the controller 401. When the temperature inside the distribution cabinet gradually rises due to the high load operation of the components and reaches the preset first-level high temperature threshold, the controller 401 will control the cooling fan 405 installed on the top surface of the positioning frame 402 to start first according to the internal logic instructions. The high-speed rotation of the impeller of the cooling fan 405 generates a strong upward negative pressure suction force, which causes the high temperature air accumulated inside the distribution cabinet to be passively drawn upward from the inner wall of the telescopic tube 2, which is in the initial folded and contracted state. The sucked-in hot air is then discharged into the cavity inside the sandwich plate 101 fixed at the top of the distribution cabinet body 1. The buffer space of the sandwich plate 101 is used for air diversion, and finally the hot air is evenly discharged from the exhaust grille on the side of the sandwich plate 101, completing the initial forced convection heat dissipation. When the temperature inside the distribution cabinet reaches the second-level ultra-high temperature threshold due to sudden overload or environmental factors, the controller 401 will instantly issue a compound action command. First, it commands the cooling fan 405 to switch to high-power operation mode to provide stronger air exchange capacity. At the same time, it controls the drive motor 404 on one side of the positioning frame 402 to rotate. The output end of the drive motor 404 drives the take-up reel 403 to rotate synchronously. Since one end of the take-up cable 204 is firmly wound on the outer surface of the take-up reel 403, the tension on the take-up cable 204 gradually decreases as the take-up reel 403 releases. Because a counterweight 202 with sufficient gravity is physically installed on the bottom surface of the telescopic tube 2, the direct action of the gravity of the counterweight 202... Under the downward traction of the counterweight 202, the originally stacked telescopic tube 2 begins to fall naturally downward from the positioning ring 102 at the top of the distribution cabinet. At this time, the other end of the winding cable 204 passes through several positioning rings 205 arranged in a linear array on the inner wall of the telescopic tube 2 in sequence, and is finally fixed on the bracket 203 at the end of the telescopic tube 2. These positioning rings 205 distributed on the inner wall play a key role in physical limiting and cable binding during the extension process, ensuring that the winding cable 204 is always in the central axis area of ​​the telescopic tube 2, preventing the cable from being randomly entangled with the tube wall. As the telescopic tube 2 extends completely toward the heat source center in the middle of the distribution cabinet, several suction holes 201 arranged in a ring array at equal intervals on its outer surface are located on one side of the core heating element.

[0026] While the telescopic tube 2 is fully extended and maintaining its suction state, the controller 401 activates the drive motor 3 mounted on the top surface of the distribution cabinet body 1. The helical gear shaft 301 at the output end of the drive motor 3 rotates, driving the driven helical gear 303 meshing with it. Supported by the positioning bearing 302, the driven helical gear 303 drives the rotating tube 304 to continuously rotate on the top layer of the distribution cabinet. At this time, the reciprocating groove 305 on the inner wall of the rotating tube 304 acts as a spatial motion trajectory constraint, forcing the slider 307, which is slidably mounted on the inner wall of the rotating tube 304, to reciprocate along the spiral path of the reciprocating groove 305. This causes the drive rod 306, fixedly connected to the slider 307, to produce regular reciprocating linear motion on the horizontal guide path. The contact plate 30 at the end of the drive rod 306... 8. Synchronous forward and backward displacement is generated. Since the inner wall of the contact plate 308 is provided with several linearly arrayed teeth 309, these teeth 309 maintain physical meshing with the driven gear 108 at the end of the driven shaft 107. The linear reciprocating motion of the contact plate 308 is transformed into the periodic forward and reverse rotation of the driven shaft 107 through the meshing action of the teeth 309 and the gear. This drives the swing ring 105 fixed on the driven shaft 107 to swing angularly around the axis of the rotating bearing 104. Since the outer surface of the telescopic tube 2 is in active contact with the inner wall of the swing ring 105, the swing of the swing ring 105 is directly transmitted to the telescopic tube 2, so that it generates a fan-shaped scanning heat dissipation path inside the distribution cabinet. The dynamic displacement of the suction hole 201 breaks the airflow dead angle generated by traditional static heat dissipation.

[0027] When the temperature sensor 4 detects that the temperature inside the cabinet has dropped to a safe level, the controller 401 instructs the drive motor 3 to stop first, causing the rotating tube 304 to stop rotating. The drive rod 306 stops at the logical position at the end of the reciprocating groove 305, ensuring that the swing ring 105 returns to the vertical center position. Then, the controller 401 drives the drive motor 404 to reverse and drive the take-up reel 403 to start the winding mode. The take-up line 204 is lifted by force. Since the take-up line 204 passes through each positioning ring 205 fixed on the inner wall of the telescopic tube 2 in sequence, the lifting force is transmitted to each section of the tube through the positioning ring 205. The positioning ring 205 here acts as the mechanical force transmission point and concentricity constraint point. The tension of the take-up line 204 forces each section of the tube to retract along the linear center trajectory, offsetting the inertial offset left by the swing motion. This allows the counterweight 202 to finally return to the initial height. The telescopic tube 2 returns to the compact stacked state and locks in the positioning ring 102 area. Finally, the fan stops, completing the entire heat dissipation cycle.

[0028] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A distribution cabinet for a smart grid, comprising a cabinet body (1) and a mezzanine plate (101), wherein the mezzanine plate (101) is fixedly installed on the top surface of the cabinet body (1), characterized in that: A positioning ring (102) is installed on the top surface of the power distribution cabinet body (1). A connecting plate (103) is provided on the outer surface of the positioning ring (102). A rotary bearing (104) is fixedly installed on one side surface of the connecting plate (103). A swing ring (105) is fixedly installed on the outer surface of the rotary bearing (104). A rotating groove (106) is opened on the outer surface of the swing ring (105). A driven shaft (107) is fixedly installed on the outer surface of the swing ring (105). A driven gear (108) is fixedly installed at one end of the driven shaft (107). A heat source collection assembly is installed on the inner wall of the swing ring (105). A control mechanism is installed on the top surface of the power distribution cabinet body (1). The heat source collection assembly includes a telescopic tube (2), with an absorption hole (201) on the outer surface of the telescopic tube (2), a counterweight (202) installed on the bottom surface of the telescopic tube (2), a bracket (203) fixedly installed on the inner wall of the telescopic tube (2), a winding wire (204) fixedly installed on the inner wall of the bracket (203), a positioning ring (205) fixedly installed on the inner wall of the telescopic tube (2), and the outer surface of the telescopic tube (2) in contact with the inner wall of the swing ring (105).

2. The smart grid distribution cabinet according to claim 1, characterized in that, There are two connecting plates (103), which are equidistantly distributed on the outer surface of the positioning ring (102). The rotary bearing (104) is distributed on one side surface of one of the connecting plates (103). The connecting plate (103) is rotatably connected to the rocker ring (105) through the rotary bearing (104). There are two rotating grooves (106) equidistantly distributed on the outer surface of the rocker ring (105). The driven shaft (107) is rotatably connected to the connecting plate (103).

3. The smart grid distribution cabinet according to claim 1, characterized in that, There are several suction holes (201), which are arranged in a ring array and equidistantly distributed on the outer surface of the telescopic tube (2). There are several positioning rings (205) arranged in a linear array on the inner wall of the telescopic tube (2). One end of the winding wire (204) passes through several positioning rings (205), and the end of the winding wire (204) is fixedly connected to the top surface of the bracket (203).

4. The smart grid distribution cabinet according to claim 1, characterized in that, The control mechanism includes a drive assembly and a winding assembly. The drive assembly includes a drive motor (3). The drive motor (3) is fixedly installed on the top surface of the power distribution cabinet body (1). A helical gear shaft (301) is fixedly installed at the output end of the drive motor (3). A positioning bearing (302) is fixedly installed on the top surface of the power distribution cabinet body (1). A driven helical gear (303) is fixedly installed on the inner wall of the positioning bearing (302). A rotating tube (304) is installed on the inner wall of the positioning bearing (302). A reciprocating groove (305) is opened on the inner wall of the rotating tube (304). A drive rod (306) is slidably installed on the inner wall of the rotating tube (304). A slider (307) is fixedly installed on the outer surface of the drive rod (306). A contact plate (308) is installed at the end of the drive rod (306). A locking tooth (309) is provided on the inner wall of the contact plate (308).

5. The smart grid distribution cabinet according to claim 4, characterized in that, The driven helical gear (303) is rotatably connected to the power distribution cabinet body (1) through the positioning bearing (302). The driven helical gear (303) meshes with the helical gear shaft (301). The outer surface of the slider (307) slides in contact with the inner wall of the reciprocating groove (305). The locking teeth (309) are a number of linearly arrayed and equidistantly distributed on the inner wall of the contact plate (308). The contact plate (308) is in active contact with the outer surface of the driven shaft (107).

6. The smart grid distribution cabinet according to claim 4, characterized in that, The winding assembly includes a temperature sensor (4), which is fixedly installed on one side of the inner wall of the power distribution cabinet body (1). A controller (401) is fixedly installed on one side of the inner wall of the power distribution cabinet body (1). A positioning frame (402) is fixedly installed on the top surface of the power distribution cabinet body (1). A take-up wheel (403) is rotatably installed on the top surface of the positioning frame (402). A drive motor (404) is fixedly installed on one side of the positioning frame (402). A cooling fan (405) is installed on the top surface of the positioning frame (402).

7. The smart grid distribution cabinet according to claim 6, characterized in that, The temperature sensor (4) is electrically connected to the controller (401), the controller (401) is electrically connected to the drive motor (404), the controller (401) is electrically connected to the drive motor (3), the outer surface of the take-up reel (403) is fixedly connected to one end of the take-up wire (204), the output end of the drive motor (404) is fixedly connected to one end of the take-up reel (403), the inner wall of the positioning frame (402) is fixedly connected to one end of the telescopic tube (2), and the inner wall of the positioning frame (402) is fixedly connected to one end of the telescopic tube (2).

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