Ventilation and heat dissipation device for distribution box

Abstract

The utility model relates to the technical field of distribution boxes, and discloses a ventilation and heat dissipation device for a distribution box, which comprises a distribution box main body, a device frame is fixedly connected to the middle of the top end of the distribution box main body, a dust filtering plate is arranged at the top of the device frame, and limiting assemblies are arranged on the left and right sides of the top end of the device frame. A fixing plate is fixedly connected to the middle of the inner wall of the device frame, a cooling fan is fixedly connected to the inner wall of the fixing plate, supporting rods are fixedly connected to the left side and the right side of the top end of the distribution box body, a sun shield is fixedly connected to the top ends of the supporting rods, and a shunting assembly is installed on the inner wall of the distribution box body. According to the utility model, the heat dissipation fan is started, external airflow is introduced and flows along the air guide pipe, then the airflow is exhausted through the air outlets at different positions, and the flowing airflow exhausts hot air generated in each area from the dustproof net, so that the airflow of the heat dissipation fan is guided, and the flowing uniformity of the airflow is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of distribution boxes, in particular to a ventilation and heat dissipation device for distribution boxes. Background Art

[0002] The distribution box is an important part of the power system, used to centrally distribute electrical energy and provide electrical protection. It is usually installed in buildings or key nodes in the power system to distribute electrical energy from the main power supply or other power supplies to various circuits and equipment.

[0003] After searching, a distribution box with announcement number CN218586705U which is convenient for heat dissipation and ventilation includes a box body and an air supply unit; the box body: a box door is hinged at the front end thereof, and evenly distributed heat dissipation holes are opened at the upper and lower ends of the right side of the box body, and fixed feet are symmetrically provided at the rear ends of the left and right sides of the box body; the air supply unit: includes a fan, a wind shield, guide holes and guide vanes, the fan is arranged inside the circular hole on the left side of the box body, the wind shield is arranged at the left end of the inside of the box body, the left side of the wind shield is provided with evenly distributed guide holes, and the right side of the wind shield is provided with evenly distributed guide vanes, the input end of the fan is electrically connected to the output end of an external controller, the distribution box which is convenient for heat dissipation and ventilation can guide the airflow, thereby enhancing the heat dissipation effect on the electrical appliances at the rear side, and the filter area is large, the disassembly is simple and the maintenance is convenient, which reduces the wind resistance and ensures the normal passage of the airflow.

[0004] Based on the above patent, the existing distribution box mentioned in its background technology can generally achieve heat dissipation by increasing the circulation speed of internal air through a cooling fan, but generally cannot guide the airflow of the cooling fan, and the uniformity of the airflow is poor. At the same time, a filter is generally installed at the air inlet of the cabinet to prevent the entry of dust. In order to avoid damage to the filter, it is generally installed inside the box. When disassembling, it needs to be disassembled from the inside, which is inconvenient and has poor maintenance convenience. In this regard, in response to this technical problem, the present application proposes a ventilation and heat dissipation device for a distribution box.

[0005] Therefore, in view of the problem that the existing distribution box generally cannot guide the airflow of the cooling fan, the filter needs to be removed from the inside when it is removed, and the removal is not convenient, a ventilation and heat dissipation device for a distribution box that solves the above problem is needed. Utility Model Content

[0006] In order to solve the problem in the prior art that the distribution box generally cannot guide the airflow of the cooling fan, and the filter needs to be removed from the inside, which makes the removal inconvenient, the present application provides a ventilation and heat dissipation device for a distribution box. The cooling fan is started, the external airflow is introduced and flows along the air duct, and the airflow is then discharged through the air outlets at different positions. The flowing airflow will discharge the hot air generated in each area from the dustproof net, thereby guiding the airflow of the cooling fan and improving the uniformity of the airflow.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A ventilation and heat dissipation device for a distribution box, comprising a distribution box main body, a device frame fixedly connected to the middle of the top of the distribution box main body, a dust filter plate is arranged on the top of the device frame, limiting components are installed on both the left and right sides of the top of the device frame, a fixing plate is fixedly connected to the middle of the inner wall of the device frame, a cooling fan is fixedly connected to the inner wall of the fixing plate, support rods are fixedly connected to the left and right sides of the top of the distribution box main body, a sunshade is fixedly connected to the top of the support rod, and a shunt component is installed on the inner wall of the distribution box main body.

[0009] As a further improvement of the present invention, the diversion assembly includes an air duct fixedly connected to the inner wall in the middle of the top end of the distribution box body and a plurality of partitions fixedly connected to the inner walls at the left and right ends of the distribution box body, the inner walls at the rear ends of the partitions are provided with wire grooves, the other ends of the air duct pass through the bottom ends of the partitions in sequence from top to bottom, and the outer walls of the air duct close to the partition are provided with air outlets.

[0010] As a further improvement of the present invention, the limiting assembly includes a card block slidably connected to the inner walls on the left and right sides of the top of the device frame and a slot opened on the front and back sides of the top of the device frame. The card block is connected to the inner wall of the device frame through a spring, and a groove is opened on the upper side of the rear end of the card block.

[0011] As a further improvement of the utility model, one end of the spring is fixedly connected to the lower side of the front end of the clamping block, and the other end of the spring is fixedly connected to the inner wall of the device frame.

[0012] As a further improvement of the present invention, ventilation holes are provided on one side of the partition corresponding to the right end of the distribution box body, and dustproof nets are fixedly connected to the inner walls of the ventilation holes.

[0013] As a further improvement of the utility model, the inner walls at both ends of the dust filter plate are provided with card slots, and the distance between the left and right ends of the inner wall of the card slot is the same as the distance between the left and right ends of the card block.

[0014] As a further improvement of the present invention, the rear end of the inner wall of the card slot is fixedly connected to a limiting plate, and the shape of the front end of the limiting plate matches the shape of the inner wall of the groove.

[0015] As a further improvement of the present invention, both front and rear sides of the bottom end of the dust filter plate are fixedly connected with plug blocks, and the shape of the outer wall of the plug block matches the shape of the inner wall of the slot.

[0016] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0017] 1. In the utility model, the heat dissipation fan is started to introduce external airflow and flow along the air duct, and then the airflow is discharged through the air outlets at different positions. The flowing airflow will discharge the hot air generated in each area from the dustproof net, thereby realizing ventilation and heat dissipation in the main body of the distribution box, and also realizing the airflow of the heat dissipation fan, improving the uniformity of the airflow flow, and enhancing the heat dissipation effect.

[0018] 2. In the utility model, by pulling the clamping blocks on both sides, the groove is moved away from one side of the limiting plate, so that the limiting relationship between the clamping block and the dust filter plate is released, and then the dust filter plate is lifted up to detach from the top of the device frame, so as to realize the convenient disassembly of the dust filter plate, and then the dust on its surface can be cleaned to avoid excessive dust accumulation and affect the circulation effect of the airflow on the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional diagram of a ventilation and heat dissipation device for a distribution box proposed by the utility model;

[0020] Figure 2 This is a cross-sectional view of a distribution box main body of a ventilation and heat dissipation device for a distribution box proposed by the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of a dust filter plate for a ventilation and heat dissipation device for a distribution box proposed by the utility model;

[0022] Figure 4 This is a schematic diagram of the device frame structure of a ventilation and heat dissipation device for a distribution box proposed by the utility model;

[0023] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0024] Legend:

[0025] 1. Distribution box body; 2. Support rod; 3. Sun visor; 4. Device frame; 5. Dust filter plate; 6. Ventilation port; 7. Dust screen; 8. Partition plate; 9. Wire duct; 10. Air duct; 11. Air outlet; 12. Cooling fan; 13. Card slot; 14. Limit plate; 15. Insert block; 16. Slot; 17. Fixing plate; 18. Card block; 19. Groove; 20. Spring. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution 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 part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0029] In the description of this application, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, if the terms "first", "second", etc. appear in the description of this application, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0030] In addition, if the terms "horizontal" or "vertical" appear in the description of this application, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0031] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] Embodiment 1: A ventilation and heat dissipation device for a distribution box, comprising a distribution box main body 1, a device frame 4 is fixedly connected to the middle of the top of the distribution box main body 1, a dust filter plate 5 is arranged on the top of the device frame 4, a fixing plate 17 is fixedly connected to the middle of the inner wall of the device frame 4, a cooling fan 12 is fixedly connected to the inner wall of the fixing plate 17, support rods 2 are fixedly connected to the left and right sides of the top of the distribution box main body 1, and a sun visor 3 is fixedly connected to the top of the support rod 2.

[0033] When the cooling fan 12 introduces outside air into the distribution box body 1, the dust in the outside air is filtered on the surface through the filter part of the dust filter plate 5, so as to prevent dust from entering the distribution box body 1 and interfering with electrical components and other structures. When the distribution box body 1 is used outdoors, the sun visor 3 has a protective effect on the dust filter plate 5 to prevent the filter from being degraded and powdered due to long-term exposure to sunlight.

[0034] Embodiment 2: An air duct 10 is fixedly connected to the inner wall of the middle part of the top of the distribution box body 1, and a plurality of partitions 8 are fixedly connected to the inner walls of the left and right ends of the distribution box body 1. The inner wall of the rear end of the partition 8 is provided with a wire groove 9, and the wire groove 9 is used for the connection of the electrical component lines between the areas. The other end of the air duct 10 passes through the bottom of the partition 8 from top to bottom in sequence. An air outlet 11 is provided on the outer wall of the air duct 10 near the partition 8. A vent 6 is provided on the right end of the distribution box body 1 corresponding to the side of the partition 8, and a dustproof net 7 is fixedly connected to the inner wall of the vent 6 A plurality of partitions 8 are placed in the inner cavity of the distribution box body 1, and the interior of the distribution box body 1 is set into multiple areas, so as to reduce the accumulation of hot spots and improve the heat dissipation efficiency. By starting the heat dissipation fan 12, the external airflow is introduced and flows along the air duct 10, and then the airflow is discharged through the air outlets 11 at different positions. The flowing airflow will discharge the hot air generated in each area from the dustproof net 7, thereby realizing ventilation and heat dissipation in the distribution box body 1, and also realizing the diversion of the airflow of the heat dissipation fan 12, improving the uniformity of the airflow flow, and enhancing the heat dissipation effect.

[0035] like Figure 3-Figure 5As shown, there are blocks 18 slidably connected to the inner walls on the left and right sides of the top of the device frame 4, and slots 16 are opened on the front and rear sides of the top of the device frame 4. The front and rear sides of the bottom of the dust filter plate 5 are fixedly connected with plug blocks 15, and the shape of the outer wall of the plug block 15 is consistent with the shape of the inner wall of the slot 16. When the dust filter plate 5 is placed on the top of the device frame 4, the plug block 15 can be aligned with the slot 16 and then inserted to achieve preliminary positioning of the dust filter plate 5 to ensure that it does not deviate to the left or right. The block 18 is connected to the inner wall of the device frame 4 through a spring 20, and a groove 19 is opened on the upper side of the rear end of the block 18. The inner walls of the left and right ends of the dust filter plate 5 are opened with card slots 13, and the left and right ends of the inner wall of the card slot 13 The spacing is the same as the spacing between the left and right ends of the card block 18. The rear end of the inner wall of the card slot 13 is fixedly connected to the limit plate 14. The shape of the front end of the limit plate 14 matches the shape of the inner wall of the groove 19. One end of the spring 20 is fixedly connected to the lower side of the front end of the card block 18, and the other end of the spring 20 is fixedly connected to the inner wall of the device frame 4. The groove 19 is stuck on the outer wall of the limit plate 14. By pulling the card blocks 18 on both sides, the groove 19 is moved away from one side of the limit plate 14, so that the limiting relationship between the card block 18 and the dust filter plate 5 is released, and then the dust filter plate 5 is lifted up and detached from the top of the device frame 4, so as to realize the convenient disassembly of the dust filter plate 5 and then clean the dust on its surface.

[0036] Working principle: First, multiple partitions 8 are placed in the inner cavity of the distribution box body 1, and the interior of the distribution box body 1 is set into multiple areas, so as to reduce the accumulation of hot spots and improve the heat dissipation efficiency. By starting the heat dissipation fan 12, the external airflow is introduced and flows along the air duct 10, and then the airflow is discharged through the air outlets 11 at different positions. The flowing airflow will discharge the hot air generated in each area from the dustproof net 7, thereby realizing ventilation and heat dissipation in the distribution box body 1. When the heat dissipation fan 12 introduces the outside air into the distribution box body 1, the dust in the outside air is filtered on the surface through the filter part of the dust filter plate 5 to prevent dust from entering the distribution box body 1 and interfering with electrical components and other structures. Then, the two side blocks 18 are pulled to make the groove 19 away from the side of the limit plate 14, so that the limit relationship between the block 18 and the dust filter plate 5 is released, and then the dust filter plate 5 is lifted up to detach from the top of the device frame 4, so as to realize the convenient disassembly of the dust filter plate 5, and then the dust on its surface can be cleaned.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A ventilation and heat dissipation device for a distribution box, comprising a distribution box body (1), characterized in that: A device frame (4) is fixedly connected to the middle of the top of the distribution box body (1), a dust filter plate (5) is arranged on the top of the device frame (4), and limit assemblies are installed on both the left and right sides of the top of the device frame (4). A fixing plate (17) is fixedly connected to the middle of the inner wall of the device frame (4), and a cooling fan (12) is fixedly connected to the inner wall of the fixing plate (17). Support rods (2) are fixedly connected to the left and right sides of the top of the distribution box body (1), and a sunshade (3) is fixedly connected to the top of the support rod (2). A shunt assembly is installed on the inner wall of the distribution box body (1).

2. A ventilation and heat dissipation device for a distribution box according to claim 1, characterized in that: The flow distribution component comprises an air duct (10) fixedly connected to the inner wall of the middle part of the top of the distribution box body (1) and a plurality of partitions (8) fixedly connected to the inner walls of the left and right ends of the distribution box body (1), the inner walls of the rear ends of the partitions (8) are each provided with a wire groove (9), the other end of the air duct (10) passes through the bottom end of the partition (8) in sequence from top to bottom, and the outer wall of the air duct (10) close to the partition (8) is each provided with an air outlet (11).

3. A ventilation and heat dissipation device for a distribution box according to claim 1, characterized in that: The limit assembly comprises a clamping block (18) slidably connected to the inner walls on the left and right sides of the top of the device frame (4) and a slot (16) provided on the front and rear sides of the top of the device frame (4); the clamping block (18) is connected to the inner wall of the device frame (4) via a spring (20); and a groove (19) is provided on the upper side of the rear end of the clamping block (18).

4. A ventilation and heat dissipation device for a distribution box according to claim 3, characterized in that: One end of the spring (20) is fixedly connected to the lower side of the front end of the clamping block (18), and the other end of the spring (20) is fixedly connected to the inner wall of the device frame (4).

5. The ventilation and heat dissipation device for a distribution box according to claim 1, characterized in that: A ventilation opening (6) is provided on one side of the partition (8) corresponding to the right end of the distribution box body (1), and a dustproof net (7) is fixedly connected to the inner wall of the ventilation opening (6).

6. A ventilation and heat dissipation device for a distribution box according to claim 1, characterized in that: The inner walls at both ends of the dust filter plate (5) are provided with card slots (13), and the distance between the left and right ends of the inner wall of the card slot (13) is the same as the distance between the left and right ends of the card block (18).

7. A ventilation and heat dissipation device for a distribution box according to claim 6, characterized in that: The rear end of the inner wall of the clamping slot (13) is fixedly connected to a limiting plate (14), and the shape of the front end of the limiting plate (14) matches the shape of the inner wall of the groove (19).

8. The ventilation and heat dissipation device for a distribution box according to claim 1, characterized in that: Insertion blocks (15) are fixedly connected to both the front and rear sides of the bottom end of the dust filter plate (5), and the shape of the outer wall of the insertion block (15) matches the shape of the inner wall of the slot (16).

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