Primary and secondary fusion outdoor pole-mounted circuit breaker

Abstract

The invention relates to the technical field of circuit breakers, and discloses a primary and secondary fusion outdoor pole-mounted circuit breaker, which comprises a bracket, a circuit breaker body shell mounted on the bracket, and a sunscreen cover covering the circuit breaker body shell, the sunscreen cover is provided with heat dissipation holes and heat dissipation fins, and the heat dissipation holes and the heat dissipation fins are mounted on the circuit breaker body shell. The radiating fins are distributed in the height direction of the circuit breaker body shell at intervals, the guide rails are installed between every two adjacent radiating fins, the fan blades are installed on the guide rails in a sliding mode, and the blowing pipe is located in the sun-proof cover, communicated with the radiating holes of the sun-proof cover and used for blowing the fan blades through airflow. The heat dissipation effect can be enhanced.

Description

Technical Field

[0001] The present application relates to the technical field of circuit breakers, and in particular to a primary-secondary fusion outdoor pole-mounted circuit breaker. Background Art

[0002] The outdoor pole-mounted circuit breaker with primary and secondary integration is composed of the circuit breaker body belonging to the primary equipment and the control terminal belonging to the secondary equipment. The control terminal analyzes and judges the collected line operation status data. When a fault occurs, the control terminal sends opening and closing and other action instructions to the circuit breaker body according to the judgment results to achieve fault isolation, and at the same time conducts two-way communication with the background master station. The outdoor pole-mounted circuit breaker is integrated with the Internet of Things and digital technology, so that it has the characteristics of human-machine interconnection capability, terminal judgment capability and deep integration.

[0003] The primary and secondary fusion outdoor pole-mounted circuit breaker will generate a certain amount of heat during normal use, mainly from the resistance loss when the current passes through the conductor and the arc during the switch operation. The circuit breaker housing is usually equipped with a heat sink to increase the surface area and use natural air flow to dissipate heat. The heat sink is a ring structure and is distributed at intervals along the height direction of the circuit breaker body. An intelligent temperature control system can also be installed inside the circuit breaker. The built-in sensor monitors the temperature in real time, automatically adjusts the heat dissipation measures, and automatically starts and stops the fan or adjusts the cooling system according to temperature changes.

[0004] Regarding the above-mentioned related technologies, in hot weather, the temperature of the circuit breaker casing will also increase, and the external cooling effect of the circuit breaker needs to be improved. Summary of the invention

[0005] In order to solve the above problems, the present application provides a primary-secondary fusion outdoor pole-mounted circuit breaker.

[0006] This application provides a primary and secondary fusion outdoor pole-mounted circuit breaker, which adopts the following technical solutions: Primary and secondary fusion outdoor pole-mounted circuit breaker, including: Bracket, The circuit breaker body housing is mounted on the bracket. A sunscreen is provided on the outer shell of the circuit breaker body, and the sunscreen is provided with heat dissipation holes. The heat sink is installed on the circuit breaker body shell and is spaced apart along the height direction of the circuit breaker body shell. A guide rail is installed between two adjacent heat sinks. The fan blade is slidably mounted on the guide rail. The blowing pipe is located in the sunshade and is connected to the heat dissipation holes of the sunshade, and is used for blowing the fan blades through airflow.

[0007] By adopting the above technical solution, the fan blades are pushed to slide by the air flow, enhancing the heat dissipation effect. At the same time, the combination of the sunshade and the heat sink can effectively prevent direct sunlight, reduce the device temperature, and improve the outdoor use stability of the circuit breaker.

[0008] Optionally, the sliding directions of the fan blades on different guide rails are different.

[0009] By adopting the above technical solution, the air flow can be more evenly distributed between the heat sinks, avoiding local overheating, further improving the heat dissipation efficiency, and also forming a turbulent flow to break the laminar flow and enhance the heat dissipation effect.

[0010] Optionally, the air outlet of the air blowing pipe faces the sliding direction of the fan blade to push the fan blade to slide along the slide rail through the air flow.

[0011] By adopting the above technical solution, it is ensured that the air flow can effectively push the fan blade, enhancing the sliding effect of the fan blade, thereby improving the heat dissipation efficiency.

[0012] Optionally, a reverse prevention assembly for making the fan blade slide unidirectionally is installed between the fan blade and the guide rail. The reverse prevention assembly includes: An elastic sheet, one end of the elastic sheet is installed on the fan blade, and the other end of the elastic sheet contacts the guide rail. A convex portion, a ring groove is formed on the inner wall of the guide rail, the convex portion is located in the ring groove and is distributed at intervals along the ring groove. When the fan blade slides along the guide rail, the elastic sheet and the convex portion are in sliding contact.

[0013] By adopting the above technical solution, the fan blade can only slide unidirectionally, preventing the fan blade from sliding back when the air flow stops, ensuring the continuity of the heat dissipation effect, and also better cooperating with the fan blades sliding in different directions to form different air flows.

[0014] Optionally, the fan blade slides in the guide rail through a sphere, and the sphere is tangent to the inner wall of the guide rail.

[0015] By adopting the above technical solution, the friction between the fan blade and the guide rail is reduced, making the fan blade slide more smoothly, reducing energy consumption, and improving the heat dissipation efficiency.

[0016] Optionally, the fan blades on the guide rail are arranged at intervals, and the spheres correspond to the fan blades one by one.

[0017] By adopting the above technical solution, each fan blade can slide independently, further improving the uniformity and efficiency of heat dissipation.

[0018] Optionally, a connecting rod is threaded through a plurality of the spheres on the same guide rail, with the head and tail ends of the connecting rod connected to each other. A pushing block is slidably connected to the connecting rod, and adjacent spheres are pushed against each other by the pushing block, with a gap left between the pushing block and the inner wall of the guide rail.

[0019] By adopting the above technical solution, through the pushing of the pushing block, a plurality of fan blades can slide in coordination, enhancing the overall heat dissipation effect. At the same time, a gap is left between the pushing block and the inner wall of the guide rail to reduce friction and ensure smooth sliding.

[0020] Optionally, it further includes: A hair dryer, installed on the bracket and located outside the sunshade, An air collecting duct, connected to the hair dryer for collecting the air volume of the hair dryer, and the air collecting duct extends into the sunshade, Branch ducts, installed on the air collecting duct, with the branch ducts corresponding to the guide rails one by one, An inductor, installed inside the sunshade for real-time monitoring of the temperature inside the sunshade, A switch, electrically connected to the inductor and the hair dryer, for starting and stopping the hair dryer according to the monitoring result of the inductor.

[0021] By adopting the above technical solution, the temperature is monitored in real time by the inductor, and the start and stop of the hair dryer are automatically controlled to achieve intelligent heat dissipation, avoiding overheating or insufficient heat dissipation, and improving the energy efficiency and service life of the equipment.

[0022] In summary, the present application includes at least one of the following beneficial effects: 1. Through various structural designs (such as sunshade, heat sink fins, guide rails, fan blades, air ducts, etc.), efficient heat dissipation of the outdoor pole-mounted circuit breaker is achieved; 2. It can also perform intelligent control (such as inductor, switch, hair dryer, etc.) to control the temperature of the circuit breaker, ensuring the stable operation of the equipment in the outdoor environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a partial exploded view showing that the sunshade is spliced into two halves in an embodiment of the present application; Figure 2 is an overall structural diagram of the fan blade distribution in an embodiment of the present application; Figure 3 is Figure 2 an enlarged view of part A of Figure 4 is a cross-sectional view showing the distribution of the air duct and the heat sink fins in an embodiment of the present application; Figure 5 is a cross-sectional view showing that the pushing block is hooked on the connecting rod in an embodiment of the present application; Figure 6Yes Figure 4 Schematic enlarged view of part B; Figure 7 Schematic structural view showing the installation of the air collecting duct in the sunshade in the embodiment of the present application; Explanation of reference numerals: 10, bracket; 20, breaker body housing; 30, sunshade; 31, heat dissipation holes; 40, heat sinks; 50, guide rails; 51, guide grooves; 52, relief grooves; 53, annular grooves; 54, snap rings; 55, support rods; 60, fan blades; 61, spheres; 62, fixing rods; 63, connecting rods; 64, push blocks; 70, air blowing ducts; 80, check valve assemblies; 81, elastic sheets; 82, protrusions; 90, hair dryers; 91, air collecting ducts; 92, branch ducts. Detailed implementation manners

[0024] The following will further describe the present application in detail with reference to the attached Figure 1 - attached Figure 7 drawings.

[0025] An embodiment of the present application discloses a primary-secondary integrated outdoor pole-mounted circuit breaker. Referring to Figure 1 , the primary-secondary integrated outdoor pole-mounted circuit breaker includes a bracket 10, a breaker body housing 20 installed on the bracket 10, a sunshade 30 for covering the breaker body housing 20, and the sunshade 30 is provided with heat dissipation holes 31. The breaker body housing 20 is used to accommodate the breaker body. Heat sinks 40 are installed on the breaker body housing 20. The breaker body housing 20 is a cylindrical structure, and the heat sinks 40 are spaced along the height direction of the breaker body housing 20 to increase the surface area of the breaker body housing 20, thereby improving the heat dissipation effect.

[0026] The sunshade 30 is a hollow cylindrical structure with a closed upper end and an open lower end. Moreover, the sunshade 30 is a split structure. After the sunshade 30 is split and spliced on the breaker body housing 20, it is fixedly adhered at the splicing position with glue. The sunshade 30 is preferably made of fiberglass-reinforced plastic (FRP) or silicone rubber materials, which have excellent insulation performance and weather resistance. The surface of the material can be treated with an anti-ultraviolet coating to extend the service life.

[0027] Referring to Figure 2 and Figure 3 , the primary-secondary integrated outdoor pole-mounted circuit breaker further includes guide rails 50 and fan blades 60 slidably installed on the guide rails 50. The guide rails 50 are installed between two adjacent heat sinks 40. When the fan blades 60 slide along the guide rails 50 under the action of wind, air flow can be generated to accelerate heat dissipation. One guide rail 50 is installed between every two heat sinks 40.

[0028] Referring to Figure 4, a blower duct 70 is installed inside the sunshade 30. The blower duct 70 communicates with some of the heat dissipation holes 31. The blower ducts 70 are arranged in multiple rows at intervals along the height direction of the sunshade 30, and one row of blower ducts 70 is close to one guide rail 50. When natural wind blows towards the sunshade 30, the blower ducts 70 can accumulate air volume and blow the fan blades 60, thereby increasing the sliding speed of the fan blades 60 along the guide rail 50 and further enhancing the heat dissipation effect of the circuit breaker body housing 20.

[0029] Furthermore, the sliding directions of the fan blades 60 on different guide rails 50 are different. In the embodiment of the present application, the sliding directions of the fan blades 60 between two adjacent guide rails 50 are different. A plurality of fan blades 60 are vertically distributed inside the sunshade 30. Different rotation directions of the fan blades 60 will generate airflows in different directions, increasing turbulence, breaking laminar flow, improving the air mixing efficiency, making it easier for hot and cold air to exchange, and enhancing the overall ventilation and heat dissipation effects.

[0030] Refer to Figure 4 , the air outlets of the multiple blower ducts 70 corresponding to the same guide rail 50 all face the sliding direction of the fan blades 60, so that the fan blades 60 can be pushed to slide along the slide rail by the airflow. The fan blades 60 are inclined towards the upwind direction, and the airflow can act more effectively on the surface of the fan blades 60, increasing the wind-receiving area, thereby obtaining a greater driving force.

[0031] Specifically, refer to Figure 3 , the guide rail 50 is formed by fixedly bonding several arc-shaped segments into an annular structure, so that the fan blades 60 can slide along the circumferential direction of the circuit breaker body housing 20. A plurality of snap rings 54 are snap-connected to the guide rail 50. Two support rods 55 are connected to the outer peripheral side of the snap ring 54. The end of one support rod 55 abuts against the connection between a heat sink 40 and the circuit breaker body housing 20, and the end of the other support rod 55 abuts against the connection between another heat sink 40 and the circuit breaker body housing 20. When the guide rail 50 is spliced, the positions of the guide rail 50 and the snap ring 54 are determined, and the two support rods 55 provide a stable support effect for the guide rail 50.

[0032] Refer to Figure 3 , a guide groove 51 is opened in the guide rail 50, and the cross-sections of the guide rail 50 and the guide groove 51 are both circular. The fan blade 60 is slidably installed in the guide groove 51 through a sphere 61. A fixing rod 62 is connected between the fan blade 60 and the sphere 61. The guide rail 50 is provided with a relief groove 52 for the fixing rod 62 to slide. The notch of the relief groove 52 is inclined downward to keep the relief groove 52 as clean as possible. The sphere 61 slides into the guide groove 51 before the guide rail 50 is spliced, and the sphere 61 is tangent to the guide groove 51 in the guide rail 50. The sphere 61 slides in the guide rail 50 to minimize the friction between the fan blade 60 and the guide rail 50.

[0033] Refer to Figure 4, the fan blades 60 are circumferentially spaced along the guide rail 50, and the spheres 61 and the fan blades 60 correspond one by one. A connecting rod 63 is connected in series between multiple spheres 61 within the same guide rail 50. The connecting rod 63 is a plastic hose and has a certain deformation ability. The head and tail ends of the connecting rod 63 are connected to form a ring structure. A plurality of push blocks 64 are slidably connected to the connecting rod 63, and adjacent spheres 61 push each other through the push blocks 64. When one fan blade 60 is pushed by wind force, the other fan blades 60 are linked and also slide along the guide rail 50, further improving the smoothness of the sliding of the fan blades 60 and the heat dissipation effect on the housing 20 of the circuit breaker body.

[0034] During the splicing process of the guide rail 50, the connecting rod 63, the spheres 61, and the push blocks 64 are connected in series, and finally the two ends of the connecting rod 63 are fixedly bonded. The push blocks 64 are respectively in contact with the spheres 61 to realize the mutual linkage between multiple spheres 61.

[0035] Refer to Figure 5 , the push block 64 is hung on the connecting rod 63, but the inner wall of the push block 64 does not completely fit on the connecting rod 63. This enables mutual pushing between multiple fan blades 60 and also allows the push block 64 to maintain a smooth sliding state. The connecting rod 63 passes through the center of the sphere 61, and the inner wall of the sphere 61 is basically in contact with the connecting rod 63. The connecting rod 63 can also play a guiding role for the sphere 61. Furthermore, refer to Figure 6 , a reverse-stop component 80 for driving the fan blade 60 to form a one-way sliding is installed between the fan blade 60 and the guide rail 50. The reverse-stop component 80 includes an elastic piece 81 and a protrusion 82. The elastic piece 81 is supported by a thin iron sheet. One end of the elastic piece 81 is fixedly installed on the sphere 61. The elastic piece 81 makes the other end of the elastic piece 81 abut against the inner wall of the guide groove 51 through its own elastic force. A ring groove 53 for guiding the insertion and sliding of one end of the elastic piece 81 is provided on the inner wall of the guide groove 51. The protrusions 82 are located in the ring groove 53 and are spaced along the ring groove 53. The protrusion 82 is specifically a hemispherical structure and does not protrude outside the ring groove 53. When the sphere 61 drives the elastic piece 81 to slide, the elastic piece 81 and the protrusion 82 are in sliding contact, and the sphere 61 and the protrusion 82 are not in contact, which does not affect the normal sliding of the sphere 61. And the cooperation between the elastic piece 81 and the guide rail 50 also has a guiding function for the sphere 61. If the sphere 61 slides in the reverse direction, the end of the elastic piece 81 abuts against the protrusion 82, making the sphere 61 only able to drive the fan blade 60 to slide in one direction along the guide rail 50. The setting of the reverse-stop component 80 is beneficial to maintaining the effect that the sliding directions of the fan blades 60 on adjacent different guide rails 50 are different.

[0036] Refer to Figure 7, the primary-secondary integrated outdoor pole-mounted circuit breaker further includes a hair dryer 90 fixedly installed on the bracket 10 and an air collecting pipe 91 connected to the hair dryer 90. The air collecting pipe 91 extends into the sunshade 30 from the lower end of the sunshade 30 and extends upward along the sunshade 30. The air collecting pipe 91 is connected with branch pipes 92, and the branch pipes 92 correspond to the guide rails 50 one by one. When the hair dryer 90 is turned on, air flows into the sunshade 30, increasing the heat dissipation effect of the heat sink 40. A sensor (not shown in the figure) is installed in the sunshade 30 for real-time monitoring of the temperature inside the sunshade 30. There is an electrically connected switch between the sensor and the hair dryer 90, and the switch is used to start and stop the hair dryer 90, further improving the cooling effect of the circuit breaker body housing 20 through intelligent settings.

[0037] Furthermore, the air outlet of the branch pipe 92 faces the sliding direction of the fan blade 60, and the inclination directions of the branch pipe 92 and the air blowing pipe 70 that blow the fan blade 60 on the same guide rail 50 are the same. When the hair dryer 90 is turned on, the corresponding branch pipe 92 blows towards the fan blade 60, and the wind force blown out by the branch pipe 92 is greater than the wind force of the natural wind, which can accelerate the sliding of the fan blade 60.

[0038] The implementation principle of the primary-secondary integrated outdoor pole-mounted circuit breaker in the first embodiment of this application is as follows: The circuit breaker body housing 20 is supported by the bracket 10, and heat sinks 40 and a sunshade 30 are provided on the housing to enhance the heat dissipation effect. The sunshade 30 can directly block the sun from shining directly on the circuit breaker body. There are air blowing pipes 70 and guide rails 50 inside the sunshade 30. Fan blades 60 are slidably installed on the guide rails 50. The natural wind or the air flow generated by the hair dryer 90 is used to push the fan blades 60 to slide along the guide rails 50, generating multi-directional air flows to increase turbulence, break laminar flow, and improve the air mixing efficiency and heat dissipation effect. The guide rail 50 adopts an annular structure, and the fan blade 60 is slidably connected to the guide rail 50 through a sphere 61 to reduce friction, and a one-way sliding is achieved through a reverse prevention component 80. In addition, a temperature sensor and a hair dryer 90 are provided inside the sunshade 30, and the heat dissipation performance is further optimized through intelligent control. The overall design significantly improves the heat dissipation efficiency and operating stability of the circuit breaker through a multi-stage heat dissipation structure and air flow guidance.

[0039] The above are all the preferred embodiments of this application. The protection scope of this application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. The primary-secondary integrated outdoor pole-mounted circuit breaker is characterized in that Including: a bracket (10), a circuit breaker body housing (20) installed on the bracket (10), a sunshade (30) covering the circuit breaker body housing (20), and the sunshade (30) is provided with heat dissipation holes (31), heat sinks (40) installed on the circuit breaker body housing (20) and spaced along the height direction of the circuit breaker body housing (20), guide rails (50) installed between two adjacent heat sinks (40), fan blades (60) slidably installed on the guide rails (50), air blowing pipes (70) located inside the sunshade (30) and communicating with the heat dissipation holes (31) of the sunshade (30) for blowing the fan blades (60) through air flow.

2. The primary-secondary integrated outdoor pole-mounted circuit breaker according to claim 1, characterized in that, The sliding directions of the fan blades (60) on different guide rails (50) are different.

3. The primary-secondary integrated outdoor pole-mounted circuit breaker according to claim 2, wherein The air outlet of the air blowing pipe (70) faces the sliding direction of the fan blade (60) to push the fan blade (60) to slide along the slide rail through air flow.

4. The primary-secondary integrated outdoor pole-mounted circuit breaker according to claim 2, characterized in that A reverse prevention component (80) for making the fan blade (60) form one-way sliding is installed between the fan blade (60) and the guide rail (50), and the reverse prevention component (80) includes: an elastic sheet (81) with one end installed on the fan blade (60) and the other end contacting the guide rail (50), a convex portion (82), a ring groove (53) is formed in the inner wall of the guide rail (50), the convex portion (82) is located in the ring groove (53) and spaced along the ring groove (53), and when the fan blade (60) slides along the guide rail (50), the elastic sheet (81) and the convex portion (82) are in sliding contact.

5. The primary-secondary integrated outdoor pole-mounted circuit breaker according to claim 1, characterized in that, The fan blade (60) slides in the guide rail (50) through a sphere (61), and the sphere (61) is tangent to the inner wall of the guide rail (50).

6. The primary-secondary integrated outdoor pole-mounted circuit breaker according to claim 5, wherein The fan blades (60) on the guide rail (50) are spaced, and the spheres (61) and the fan blades (60) are in one-to-one correspondence.

7. The primary-secondary integrated outdoor pole-mounted circuit breaker according to claim 6, wherein A connecting rod (63) is threaded through between multiple spheres (61) on the same guide rail (50), the head and tail ends of the connecting rod (63) are connected, a push block (64) is slidably connected to the connecting rod (63), and adjacent spheres (61) push each other through the push block (64), and a gap is left between the push block (64) and the inner wall of the guide rail (50).

8. The primary-secondary integrated outdoor pole-mounted circuit breaker according to claim 1, characterized in that, It further includes: a hair dryer (90) installed on the bracket (10) and located outside the sunshade (30), an air collecting pipe (91) connected to the hair dryer (90) for collecting the air volume of the hair dryer (90), and the air collecting pipe (91) extends into the sunshade (30), branch pipes (92) installed on the air collecting pipe (91), and the branch pipes (92) and the guide rails (50) are in one-to-one correspondence, a sensor installed inside the sunshade (30) for real-time monitoring of the temperature inside the sunshade (30), a switch electrically connected to the sensor and the hair dryer (90) for starting and stopping the hair dryer (90) according to the monitoring result of the sensor.

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