A dual-effect self-driven heat dissipation integrated distribution box

Abstract

This invention discloses a dual-effect self-driven heat dissipation integrated distribution box, relating to the field of integrated distribution box technology. The integrated distribution box includes a box body, several compartments disposed within the box body, differential pressure heat-conducting plates disposed on the inner left and right sides of the box body, a guide plate disposed on the inner side of the box body's top cover, first heat dissipation holes disposed on the outer periphery of the top cover, and second heat dissipation holes disposed on the outer left and right sides of the box body. While ensuring that the integrated distribution box's protection level is not affected, this invention, through the V-shaped structure of the guide plate, guides the hot air accumulated at the top of the box body to escape rapidly through the first heat dissipation holes, efficiently removing heat and significantly reducing the internal temperature of the box, thus mitigating the heat island effect. Simultaneously, the chimney effect generated by the hollow structure of the differential pressure heat-conducting plate greatly enhances the internal heat dissipation capacity of the box body, thereby effectively reducing the temperature rise of the integrated distribution box's power distribution switches. This invention has a simple overall structure, small size, convenient installation, and effectively reduces production costs.

Description

Technical Field

[0001] This invention relates to the field of integrated distribution box technology, and in particular to an integrated distribution box with dual-effect self-driven heat dissipation. Background Technology

[0002] The core reason for excessively high temperatures in integrated distribution boxes is that heat generation exceeds heat dissipation. During peak load periods, when current is high or there are many high-power components clustered together, localized thermal anomalies and overall temperature increases can easily occur inside the distribution box. In high-temperature environments (outdoors without shade) and under poor heat dissipation conditions, the temperature rise can exceed 25-35°C. This will lead to accelerated aging of component insulation layers, parameter drift or failure of sensitive components, malfunction of circuit breakers or contactors, and shortened capacitor lifespan. It may even cause electrical fires and electric shocks, endangering personal safety and power grid safety.

[0003] Traditional enclosure natural ventilation structures achieve ventilation only through perforations or louvers in the enclosure walls, and their ventilation effect is affected by the ambient air volume and temperature. The enclosure top cover is generally made into a rainproof pointed top cover or a flat top cover. The top cover visor and the inside of the top cover form an enclosure space. At the same time, the heat inside the enclosure is lifted upward by the air from the heat source of the integrated distribution box (incoming and outgoing switches, connecting wires, compensation capacitors). The airflow is relatively slow at the heat dissipation holes of the top cover visor, and heat tends to accumulate quickly, forming convection turbulence. This creates a heat island effect on the inside of the enclosure top cover and at the heat source, thus limiting the heat dissipation efficiency.

[0004] Furthermore, to enhance active heat dissipation, active cooling fans are designed and implemented in the outgoing cable room or compensation room. These fans are powered by electricity to achieve temperature control. However, due to factors such as temperature and humidity, dust, corrosive gases, vibration, and impact during use, if the cooling fans are not replaced in a timely manner after their lifespan ends, it is equivalent to having no heat dissipation solution at all.

[0005] Furthermore, due to the installation of circuit breakers and other components from different suppliers, the heat dissipation effects of different integrated distribution boxes vary significantly, making it difficult to reconcile with test results such as power frequency withstand voltage tests and temperature rise tests. This situation is no longer sufficient to meet the higher requirements for temperature rise control in application scenarios such as new energy grid connection and large-capacity reactive power compensation.

[0006] Therefore, there is an urgent need to study a comprehensive distribution box that achieves self-driven heat dissipation, active heat dissipation, and zero power consumption through dual-effect self-driven heat dissipation to solve the above problems. Summary of the Invention

[0007] To address the aforementioned technical deficiencies, the present invention provides a dual-effect self-driven heat dissipation integrated distribution box. By installing a flow guide plate and a differential pressure heat conduction plate, the heat dissipation efficiency of the box is significantly improved while ensuring that the protection level of the integrated distribution box is not affected, and production costs are effectively reduced.

[0008] The present invention provides a dual-effect self-driven heat dissipation integrated distribution box, including a box body, a plurality of compartments disposed in the box body, a differential pressure heat conduction plate disposed on the left and right inner sides of the box body, a flow guide plate disposed on the inner side of the top cover of the box body, a first heat dissipation hole disposed on the periphery of the top cover, and a second heat dissipation hole disposed on the left and right outer sides of the box body.

[0009] The plurality of compartments include: an inlet compartment, an outlet compartment, a compensation compartment, a metering compartment, and a terminal compartment; the differential pressure heat-conducting plate is a hollow cuboid structure, and heat-conducting grooves are formed below the first plane and the opposite plane of the differential pressure heat-conducting plate; an air inlet is provided on the second plane of the differential pressure heat-conducting plate, and there is a first height difference between the horizontal position of the air inlet and the second heat dissipation hole, and the air inlet is at a lower position; the guide plate is V-shaped, and the end of its V-shaped structure is guided to the inner side of the first heat dissipation hole and the lower side of the brim of the top cover; the length of the hollow structure of the differential pressure heat-conducting plate ranges from 15-25mm, the width ranges from 150-220mm, and the height ranges from 400-900mm, and the thickness of the plate of the differential pressure heat-conducting plate is 0.8-2.0mm; the angle between the V-shaped structure of the guide plate and the horizontal plane ranges from 10° to 15°.

[0010] Preferably, there are three differential pressure heat conduction plates, one of which is located in the outlet chamber and the other two are located in the compensation chamber.

[0011] Preferably, the heat conduction groove is rectangular in shape; there is a second height difference between the bottom of the heat conduction groove and the lowest point of the air inlet, and the bottom of the heat conduction groove is lower than the lowest point of the air inlet.

[0012] Preferably, a baffle plate is provided below the heat conduction groove, and the baffle plate has a square structure.

[0013] Preferably, there is a third height difference between the lowest point of the V-shaped structure of the guide plate and the top cover; the range of the third height difference is 100-150mm.

[0014] Preferably, the first height difference ranges from 240 to 400 mm.

[0015] Preferably, the thickness of the guide plate is 0.8-2.0 mm; the length of the guide plate is the length from the outlet chamber to the length covering the inner side of the top cover.

[0016] Preferably, the differential pressure heat conduction plate and the flow guide plate are integrally formed structures or detachable installation structures.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The V-shaped structure guide plate is installed inside the top cover of the integrated distribution box. The bottom of the V-shaped structure is 100mm~150mm away from the top cover, forming a double-layer top with the top cover. The hollow part has no effective air convection, which can effectively isolate the high temperature of the top cover of the integrated distribution box when exposed to direct sunlight outdoors, and reduce the temperature rise inside the box when the integrated distribution box is working outdoors; 2. The guide plate installed inside the top cover of the box has a V-shaped structure that guides the hot air accumulated at the top of the box through the first diffuser. 1. Hot air vents allow for rapid escape of hot air, efficiently removing heat and reducing the temperature inside the integrated distribution box. This significantly reduces the heat island effect on the inner side of the box top cover and greatly improves the internal heat dissipation capacity. 2. The hollow structure of the differential pressure heat-conducting plate forms a vertical space with the inner side of the box. The air inlet and heat-conducting groove work together to enhance the absorption of heat generated in the compartments, which is then discharged through the second heat dissipation vents. This strengthens air convection between the box and the environment, creating a significant chimney effect and rapidly reducing the temperature of each compartment. 3. The organic combination of the above three advantages effectively reduces the temperature rise of the distribution switches in the integrated distribution box. 4. The integrated distribution box with dual-effect self-driven heat dissipation has a simple overall structure, small size, consumes no electricity, and is easy to install. 5. Production costs are effectively reduced while ensuring that the protection level of the integrated distribution box is not affected. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the overall structure of a dual-effect self-driven heat dissipation integrated distribution box provided in an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of the differential pressure heat conduction plate installation structure in the outgoing chamber of a dual-effect self-driven heat dissipation integrated distribution box provided in an embodiment of the present invention;

[0021] Figure 3 A schematic diagram of the second heat dissipation hole structure in the outgoing chamber of a dual-effect self-driven heat dissipation integrated distribution box provided in an embodiment of the present invention;

[0022] Figure 4 A schematic diagram of the differential pressure heat-conducting plate of a dual-effect self-driven heat dissipation integrated distribution box provided in an embodiment of the present invention;

[0023] Figure 5 A schematic diagram of the differential pressure heat conduction plate installation structure in the compensation chamber of a dual-effect self-driven heat dissipation integrated distribution box provided in an embodiment of the present invention;

[0024] Figure 6 A schematic diagram of the axial structure of the top cover mounting guide plate of a dual-effect self-driven heat dissipation integrated distribution box provided in an embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the axial structure of the guide plate of a dual-effect self-driven heat dissipation integrated distribution box provided in an embodiment of the present invention. Detailed Implementation

[0026] 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, not all, of the embodiments of the present invention. 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.

[0027] The directional terms used in this invention, such as "up," "down," "front," "back," "left," "right," "inside," "outside," and "side," are merely for reference to the accompanying drawings. Therefore, the directional terms used are for the purpose of explaining and understanding this invention, and not for limiting this invention.

[0028] See Figures 1 to 7 This invention provides a dual-effect self-driven heat dissipation integrated distribution box, comprising a box body 1, several compartments 2 disposed within the box body, differential pressure heat conduction plates 3 disposed on the left and right inner sides of the box body, a guide plate 4 disposed on the inner side of the top cover 11 of the box body, first heat dissipation holes 5 disposed on the periphery of the top cover 11, and second heat dissipation holes 6 disposed on the left and right outer sides of the box body 1. The first heat dissipation holes 5 and the second heat dissipation holes 6 are of the same shape as those used in conventional integrated distribution boxes and will not be described further here.

[0029] In this embodiment, the plurality of compartments 2 include: an incoming line compartment, an outgoing line compartment 21, a compensation compartment 22, a metering compartment, and a terminal compartment; the plurality of compartments 2 are existing technologies, and their functions and roles are not described here.

[0030] See Figure 1 , Figure 2 , Figure 4 as well as Figure 5The differential pressure heat-conducting plate 3 is a hollow cuboid structure. The length of the hollow structure ranges from 15-25mm, the width from 150-220mm, and the height from 400-900mm. The thickness of the plate is 0.8-2.0mm. In this embodiment, three differential pressure heat-conducting plates 3 are specifically installed, one in the outlet chamber 21 and the other two in the compensation chamber 22. The installation positions of the differential pressure heat-conducting plates 3 are determined based on the heat generation of the compartments 2; the more heat-generating compartments 2, the more plates are installed.

[0031] In this embodiment, a heat-conducting groove 32 is formed below the first plane 31 and the opposite plane of the differential pressure heat-conducting plate 3. The heat-conducting groove 32 can be rectangular, circular, or other irregularly shaped. In this embodiment, a rectangular structure is preferred for ease of processing. An air inlet 34 is provided on the second plane 33 of the differential pressure heat-conducting plate 3. The air inlet 34 is preferably a louvered structure, and the number and arrangement of the air inlets 34 are not limited here. For aesthetic purposes, an aligned arrangement is preferred. There is a first height difference between the horizontal position of the air inlet 34 and the second heat dissipation hole 6, and the air inlet 34 is at the lower position. There are three second heat dissipation holes 6, one of which is located in the outlet chamber 21 and the other two are located in the compensation chamber 22. The horizontal height of the three second heat dissipation holes 6 is the same. Specifically, the first height difference ranges from 240 to 400 mm. The greater the height difference, the more obvious the thermal pressure effect, resulting in a significant chimney effect ventilation, reducing the heat transfer coefficient of the outlet chamber 21 and the compensation chamber 22, and effectively reducing the power consumption of the power heat dissipation element.

[0032] In this embodiment, there is a second height difference between the bottom of the heat-conducting groove 32 and the lowest point of the air inlet 34, and the bottom of the heat-conducting groove 32 is lower than the air inlet 34; wherein, the preferred value range of the second height difference is 0-20mm. Through this implementation, the heat-conducting groove 32 can work in conjunction with the air inlet 34 to enhance the absorption of heat generated by the compartment, meeting the heat dissipation requirements when there are many high-current or high-power components and they are centrally arranged during peak load periods.

[0033] See Figure 1 , 4 A water baffle 35 is provided below the heat conduction groove 32. The water baffle 35 has a square structure and a height range of 10-20mm. For example, when water enters the interior of the integrated distribution box through the second heat dissipation hole 6, it will flow down vertically along the second plane 33. At this time, the water baffle 35 can catch the water and prevent it from splashing into the outgoing line chamber 21 and the compensation chamber 22, thus ensuring the safe operation of the power distribution switch.

[0034] See Figure 6 , 7 The guide plate 4 is V-shaped, with its V-shaped end guiding to the inner side of the first heat dissipation hole 5 and the lower side of the brim of the top cover, thereby guiding the heat inside the box 1. The thickness of the guide plate is 0.8-2.0mm; the length of the guide plate is the length from the cable outlet chamber to the length covering the inner side of the top cover. There is a third height difference between the lowest point of the V-shaped structure of the guide plate 4 and the top cover 11; the third height difference ranges from 100-150mm. The guide plate 4 and the top cover 11 together form a double-layer top structure, and the hollow portion formed by the third height difference lacks effective air convection, thus effectively isolating the high temperature generated by the top cover 11 when the integrated distribution box is exposed to direct sunlight outdoors, reducing the temperature rise inside the integrated distribution box in outdoor working environments. Preferably, the V-shaped structure of the guide plate 4 is centrally symmetrical, uniformly guiding the hot air inside the box 1 along the guide plate 4 to the first heat dissipation hole 5 on the operating surface of the integrated distribution box for discharge.

[0035] See Figure 7 The angle between the V-shaped structure of the guide plate 4 and the horizontal plane ranges from 10° to 15°; preferably, the angle between the V-shaped structure of the guide plate 4 and the horizontal plane is 12°, which effectively prevents the heat flow inside the box 1 from being too slow, accelerates the rapid escape of hot air, and quickly carries away the heat, thereby reducing the temperature inside the integrated power distribution box, significantly weakening the heat island effect inside the top cover 11, greatly improving the heat dissipation capacity inside the box 1, and ensuring a safe structural distance between the guide plate 4 and the several compartments 2.

[0036] See Figure 4 , 7 The differential pressure heat conduction plate 3 and the flow guide plate 4 are either integrally formed or detachably installed. In this embodiment, the differential pressure heat conduction plate 3 and the flow guide plate 4 preferably adopt a detachably installed structure. The differential pressure heat conduction plate 3 has 4 mounting holes distributed according to the strength principle, and 10-20mm screws are welded to the outlet chamber 21 and the compensation chamber 22. It is preferred to use lock nuts and flat washers for fastening connection. The flow guide plate 4 has 8 round holes or waist holes distributed according to the strength principle, and 10-20mm screws are welded to the inner side of the top cover 11. It is preferred to use lock nuts and flat washers for fastening connection. When the flow guide plate 4 is an integrally formed structure, it is preferred to use spot welding on the inner side of the top cover 11 of the box body, and the flow guide plate 4 and the top cover 11 are an integral structure, which can be detachably installed on the integrated power distribution box body 1.

[0037] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0038] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Since these modifications and variations fall within the scope of the claims and their equivalents, this invention also intends to include these modifications and variations.

[0039] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A dual effect self-driven heat dissipating integrated distribution box, characterized in that, The box, a plurality of compartments arranged in the box, a differential pressure heat conduction plate arranged on the left and right inner sides of the box, a flow guide plate arranged on the inner side of the top cover of the box, a first heat dissipation hole arranged on the periphery of the top cover, and a second heat dissipation hole arranged on the left and right outer sides of the box; The plurality of compartments include an incoming line room, an outgoing line room, a compensation room, a metering room, and a terminal room; the differential pressure heat conduction plate is a hollow cuboid structure, a first plane of the differential pressure heat conduction plate and an opposite plane thereof are provided with heat conduction grooves below; a second plane of the differential pressure heat conduction plate is provided with an air inlet, the air inlet and the horizontal position of the second heat dissipation hole have a first height difference, and the air inlet is at a low position; the flow guide plate is V-shaped, and the V-shaped structure of the flow guide plate is directed to the inner side of the first heat dissipation hole and the lower side of the brim of the top cover; the length of the hollow structure of the differential pressure heat conduction plate ranges from 15 mm to 25 mm, the width ranges from 150 mm to 220 mm, and the height ranges from 400 mm to 900 mm, and the thickness of the plate of the differential pressure heat conduction plate ranges from 0.8 mm to 2.0 mm; the angle between the V-shaped structure of the flow guide plate and the horizontal plane ranges from 10° to 15°.

2. The dual effect self-driven heat dissipating integrated distribution panel according to claim 1, wherein, The differential pressure heat conduction plate has three, one of which is located in the outgoing line room, and the other two are located in the compensation room.

3. The dual effect self-driven heat dissipating integrated distribution panel of claim 1, wherein, The heat conduction groove is rectangular in shape; the bottom of the heat conduction groove and the lowest position of the air inlet have a second height difference, and the bottom of the heat conduction groove is lower than the lowest position of the air inlet.

4. The dual effect self-driven heat dissipating integrated distribution panel of claim 1, wherein, A water baffle is arranged below the heat conduction groove, and the water baffle is square in structure.

5. The dual effect self-driven heat dissipating integrated distribution panel of claim 1, wherein, The lowest part of the V-shaped structure of the flow guide plate has a third height difference with the top cover; the third height difference ranges from 100 mm to 150 mm.

6. The dual effect self-driven heat dissipating integrated distribution panel of claim 1, wherein, The first height difference ranges from 240 mm to 400 mm.

7. The dual effect self-driven heat dissipating power distribution unit of claim 1, wherein, The thickness of the plate of the flow guide plate ranges from 0.8 mm to 2.0 mm; the length of the plate of the flow guide plate is the length of the outgoing line room to the length of the inner side of the top cover.

8. The dual effect self-powered heat dissipating utility power distribution box according to any one of claims 1-7, wherein, The differential pressure heat conduction plate and the flow guide plate are integrally formed or detachably installed.

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