CN111900640A - Outdoor power distribution cabinet - Google Patents

Abstract

The invention discloses an outdoor power distribution cabinet, which relates to the technical field of power distribution cabinets and comprises a cabinet body, a heat dissipation unit and a flow guide unit, wherein the heat dissipation unit is positioned on the cabinet body and comprises a flow guide pipe and a heat dissipation pipe; a ventilation chamber and a water through chamber are arranged in the flow guide pipe, an air inlet hole is arranged on the ventilation chamber, and the ventilation chamber is communicated with the cabinet body so that air enters the cabinet body from the air inlet hole; the water conservancy diversion unit includes the feed liquor pipe, and the roof of honeycomb duct is inserted and extend to in the water service chamber to the one end of feed liquor pipe, is equipped with the outage on the water service chamber, and the one end and the outage of cooling tube are connected, and the other end of cooling tube extends to cabinet lateral wall, causes water to store in getting into the cooling tube from the inlet. The invention has the beneficial effects that: the invention adopts two heat dissipation modes for heat dissipation, improves the heat dissipation performance, and solves the problem that the heat dissipation effect is not obvious because the heat dissipation window is usually arranged on the side surface of the cabinet body for heat dissipation in the outdoor power distribution cabinet used in daily life at present.

Description

An outdoor power distribution cabinet

technical field

The invention relates to the technical field of power distribution cabinets, in particular to an outdoor power distribution cabinet.

Background technique

Green buildings and building intelligent systems are important guarantees for providing comfortable, energy-saving and safe building space. Outdoor small power distribution cabinets are devices that facilitate power distribution for outdoor equipment, also known as power distribution boxes. Most outdoor power distribution cabinets are limited in size, and at the same time, in order to save costs, no cooling fan is installed, which makes the cabinet temperature higher when the power distribution cabinet is working, resulting in more power loss, and the building energy saving and safety cannot be effectively guaranteed. These are The key issues faced by intelligent building and green building power distribution cabinets.

Installing a cooling fan not only needs to provide corresponding space, but also needs to provide power for the cooling fan. For example, patent CN205565416U discloses an outdoor power distribution cabinet, including a cabinet body, a ventilation slot is arranged on the right side of the cabinet body, and a ventilation slot is arranged in the ventilation slot. Heat exhaust fan, although installing a cooling fan can dissipate heat for the power distribution cabinet, the cooling fan generates heat at the same time when working. The impact is relatively large. Usually, a heat dissipation window is set on the side of the cabinet to dissipate heat, and the heat dissipation effect is not obvious.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is that the existing outdoor power distribution cabinet is usually provided with a heat dissipation window on the side of the cabinet body to dissipate heat, and the heat dissipation effect is not obvious.

The present invention realizes and solves the above-mentioned technical problems through the following technical means:

The invention provides an outdoor power distribution cabinet, including a cabinet body, a heat dissipation unit and a flow guide unit, the heat dissipation unit is located on the cabinet body, the heat dissipation unit includes a flow guide pipe and a heat dissipation pipe, and the cabinet body is provided with ventilation window;

The guide pipe is provided with a ventilation chamber and a water passage, the ventilation chamber is provided with an air inlet hole, and the ventilation chamber is communicated with the cabinet body, so that the air enters the cabinet body from the air inlet hole;

The diversion unit includes a liquid inlet pipe. One end of the liquid inlet pipe is inserted into the top wall of the diversion pipe and extends into the water passage chamber. The water passage chamber is provided with a drain hole. The drain holes are connected, and the other end of the heat dissipation pipe extends to the side wall of the cabinet, so that water enters the heat dissipation pipe from the liquid inlet for storage.

working principle:

Air cooling and heat dissipation: The air flow direction enters from the air inlet hole on the ventilation room, passes through the ventilation room and the cabinet in turn, and then discharges from the ventilation window on the cabinet body, so that the heat in the cabinet can be taken away.

Water cooling and heat dissipation: Outdoor rainwater flows into the liquid inlet pipe on the guide pipe, flows from the liquid inlet pipe into the water passage chamber, and is discharged into the heat dissipation pipe from the liquid drain hole for storage, evaporative heat dissipation, and heat dissipation on the side wall of the cabinet.

Beneficial effects: the present invention adopts two heat dissipation methods for heat dissipation, improves heat dissipation performance, and solves the problem that the heat dissipation window is usually set on the side of the cabinet body for heat dissipation, and the heat dissipation effect is not obvious in the outdoor power distribution cabinet used daily.

Preferably, the ventilation chamber and the water passage chamber are not communicated with each other.

Beneficial effect: Since the water passage chamber and the ventilation chamber are not connected to each other, two independent chambers are formed, which can dissipate heat through two heat dissipation methods, while preventing rainwater from flowing into the ventilation chamber, preventing rainwater from flowing into the cabinet from the ventilation chamber, and preventing the occurrence of Short circuit explosion phenomenon.

Preferably, a partition is provided between the ventilation chamber and the water passage, and a ventilation pipe is provided between the ventilation chamber and the cabinet, one end of the ventilation pipe is communicated with the partition, and the other end of the ventilation pipe Connected with the top wall of the cabinet.

Working principle: The air flow direction enters from the air inlet hole on the ventilation room, passes through the ventilation room, ventilation pipe, cabinet body in turn, and then discharges from the ventilation window on the cabinet body.

Preferably, the top wall of the cabinet is provided with a plurality of through holes, the through holes correspond to the bottom end of the ventilation pipe, the inner diameter of the through hole is smaller than the outer diameter of the bottom end of the ventilation pipe, and the center of the through hole is located in the ventilation pipe on the axis.

Preferably, the diameter of the top end of the ventilation pipe is larger than the diameter of the bottom end of the ventilation pipe.

Beneficial effects: The upper width of the ventilation pipe is convenient for large area to enter the air, which is convenient for airflow circulation, and the inner chamber of the cabinet is connected with the corresponding ventilation pipe through the through hole, and the inner chamber of the cabinet is connected with the ventilation chamber through the ventilation pipe, and the ventilation chamber is connected with the ventilation pipe. The windows are connected to each other to realize the heat dissipation of the inner room of the cabinet.

Preferably, the cross section of the heat dissipation pipe is L-shaped, and the heat dissipation pipes are distributed on both sides of the guide pipe.

Preferably, the diversion unit further comprises a diversion top, the upper surface of the diversion top is a downwardly concave curved plate, the diversion top is located on the top of the diversion pipe, and one end of the liquid inlet pipe Connected with the bottom of the diversion top, the other end of the liquid inlet pipe passes through the partition plate and extends into the water passage chamber.

Outdoor rainwater is collected from the diversion roof and then flows into the liquid inlet pipe, and then flows into the water passage chamber from the liquid inlet pipe.

Preferably, the diversion unit further comprises a cover plate, the cover plate is an upwardly convex curved plate, the cover plate is located on the top of the diversion roof, and the edge of the cover plate is connected with the surface of the diversion roof, The edge of the top wall of the cover plate is provided with a guide hole.

Beneficial effects: the rainwater is diverted through the cover plate, and the rainwater on the cover plate slopes down and falls into the guide hole, preventing the sundries mixed in the rainwater from flowing into the liquid inlet pipe and blocking the liquid inlet pipe or the liquid discharge hole.

Preferably, both the air inlet hole and the liquid discharge hole are circular holes.

Beneficial effects: the round hole is simple to form, and the complexity of the process is reduced.

Preferably, the ventilation window is located on the bottom wall of the cabinet body, and the lower end of the cabinet body is provided with a floor stand.

Beneficial effects: the ventilation window is located on the bottom wall of the cabinet, which can play the role of waterproof and dust prevention; the floor rack is convenient for the outdoor placement of the power distribution cabinet.

Preferably, the air inlet hole is located below the diversion roof.

Beneficial effects: it is convenient to guide the airflow of the air, so that the airflow enters the air inlet hole along the guide direction of the lower surface of the guide top, and plays the role of waterproof and dust prevention at the same time.

Preferably, the ventilation window includes an air outlet and a protective flange, the air outlet is located on the bottom wall of the cabinet, and the protective flange is located around the air outlet.

The working principle of the present invention:

Air cooling and heat dissipation: The air flow direction enters from the air inlet hole on the ventilation room, passes through the ventilation room and the cabinet in turn, and then discharges from the ventilation window on the cabinet body, so that the heat in the cabinet can be taken away.

Water cooling and heat dissipation: It can be dissipated by rainwater or by adding water by itself. The water body flows into the liquid inlet pipe on the guide pipe, flows from the liquid inlet pipe into the water passage chamber, and is discharged into the heat dissipation pipe from the liquid discharge hole for storage and evaporative heat dissipation. wall for heat dissipation.

The advantages of the invention are: the invention adopts two heat dissipation methods for heat dissipation, improves the heat dissipation performance, and solves the problem that the heat dissipation window is usually set on the side of the cabinet body for heat dissipation, and the heat dissipation effect is not obvious in the outdoor power distribution cabinet used in daily life; The water passage room and the ventilation room are not connected to each other, which can prevent rainwater from flowing into the ventilation room and prevent rainwater from flowing into the cabinet from the ventilation room.

Description of drawings

1 is a schematic structural diagram of an outdoor power distribution cabinet in an embodiment of the present invention;

2 is a top view of an outdoor power distribution cabinet in an embodiment of the present invention;

Fig. 3 is the bottom view of the outdoor power distribution cabinet in the embodiment of the present invention;

Fig. 4 is the front sectional view of the cabinet body position of the outdoor power distribution cabinet in the embodiment of the present invention;

Fig. 5 is the top sectional view at the position A-A in Fig. 4 of the present invention;

Fig. 6 is the top sectional view at position B-B in Fig. 4 of the present invention;

FIG. 7 is a schematic diagram of the partial structure at the position of the guide tube in FIG. 4 of the present invention;

Fig. 8 is a top view at the position C-C in Fig. 7 of the present invention;

9 is a schematic diagram of the structure of the diversion roof in the outdoor power distribution cabinet of the present invention;

Figure 10 is a schematic structural diagram of a cover plate in an outdoor power distribution cabinet of the present invention;

Fig. 11 is the front sectional view of the guide pipe in the outdoor power distribution cabinet of the present invention;

In the figure: cabinet 1; floor frame 2; ventilation window 3; air outlet 31; protective flange 32; heat dissipation unit 4; guide pipe 41; guide pipe side wall 411; Hole 431; Ventilation pipe 44; Water passage chamber 45; Liquid discharge hole 451; Radiation pipe 5;

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are part of the present invention. examples, but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

It should be noted that, in this document, if there are relational terms such as first and second, etc., it is only used to distinguish one entity or operation from another entity or operation, and does not necessarily require or imply these entities or operations There is no such actual relationship or order between them. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion such that a process, method, article or device comprising a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

An outdoor power distribution cabinet, as shown in Figures 1 and 4, includes a cabinet body 1, a floor stand 2, a heat dissipation unit 4 and a guide unit 6. The heat dissipation unit 4 is located on the cabinet body 1, and the heat dissipation unit 4 includes a guide tube. 41 and the heat dissipation pipe 5 , the guide unit 6 includes a guide top 61 , a liquid inlet pipe 62 and a cover plate 63 .

As shown in Figure 1, the side wall of the cabinet 1 is provided with a cabinet door. In order to facilitate the placement of the cabinet 1 outdoors, a floor stand 2 is installed at the bottom of the cabinet 1; the material of the cabinet 1 is anti-rust material, such as stainless steel. A ventilation window 3 is provided on the 1. In order to achieve the purpose of preventing dust and water, the ventilation window 3 is located on the bottom wall of the cabinet body 1, and the ventilation window 3 is communicated with the inner room of the cabinet body 1.

As shown in Figures 3 and 4, in order to further achieve the purpose of preventing dust and water, the ventilation window 3 includes an air outlet 31 and a protective flange 32. The air outlet 31 is opened on the bottom wall of the cabinet 1, and the number of the air outlets 31 is based on the actual situation. It needs to be provided that the protective flange 32 is fixedly installed on the bottom wall of the cabinet body 1 , and the protective flange 32 is installed around the air outlet 31 .

As shown in FIG. 4 , FIG. 7 and FIG. 11 , the guide pipe 41 is fixedly installed on the top wall of the cabinet 1 , the guide pipe 41 includes the guide pipe side wall 411 and the partition plate 412 , and the guide pipe side wall 411 is welded by welding However, it is not limited to being fixedly installed on the top wall of the cabinet 1 by welding, the guide pipe 41 is arranged vertically, the partition plate 412 is installed in the guide pipe 41, and the guide pipe 41 is divided into two upper and lower parts by the partition plate 412 and the side wall. The chambers that are not connected to each other are the ventilation chamber 43 and the water passage chamber 45 respectively; a plurality of through holes are formed on the partition plate 412 , and corresponding through holes are formed on the top wall of the cabinet 1 .

As shown in Figure 4, Figure 7, Figure 8 and Figure 11, the side wall of the ventilation chamber 43 is provided with air inlet holes 431, and the number of the air inlet holes 431 is set according to actual needs. In order to reduce the complexity of the process, the air inlet holes 431 It is a circular hole, and the air inlet holes 431 are distributed on the side wall of the ventilation chamber 43. A ventilation pipe 44 is installed between the ventilation chamber 43 and the cabinet 1. The number of ventilation pipes 44 is set according to actual needs, and the ventilation pipe 44 is located in the water passage chamber. In 45, one end of the ventilation pipe 44 is connected to the through hole on the partition plate 412, and the other end of the ventilation pipe 44 is connected to the through hole of the top wall of the cabinet 1. The connection method adopts welding but is not limited to welding. The baffle 412 and the ventilation pipe 44 are integrally formed. The inner diameter of the through hole on the top wall of the cabinet 1 is smaller than the outer diameter of the bottom end of the ventilation pipe 44. In order to facilitate the entry of air in a large area and facilitate airflow circulation, the diameter of the top of the ventilation pipe 44 is larger than that of the bottom of the ventilation pipe 44. diameter of the end.

The side wall of the water passage chamber 45 is provided with a liquid discharge hole 451. In order to reduce the complexity of the process, the air inlet hole 431 is a circular hole, and the number of the liquid discharge holes 451 is set according to actual needs. 45 sidewalls.

As shown in FIGS. 3-6 , the number of heat dissipation pipes 5 is the same as the number of drain holes 451 , one end of the heat dissipation pipe 5 is connected to the liquid drain hole 451 , and the other end of the heat dissipation pipe 5 extends to the side wall of the cabinet 1 At the bottom end, a cavity for accommodating water is provided in the heat dissipation pipe 5. The heat dissipation pipe 5 is distributed on the side wall of the cabinet 1. In this embodiment, the heat dissipation pipe 5 is located on both sides of the guide pipe 41. In this embodiment, the heat dissipation pipe 5 The section is L-shaped.

In order to allow outdoor rainwater to flow into the water passage chamber 45 , one end of the liquid inlet pipe 62 is inserted into the top wall of the guide pipe 41 and extends into the water passage chamber 45 .

As shown in FIG. 4 and FIG. 7 , in order to facilitate the inflow of outdoor rainwater into the water passage chamber 45, the top wall of the guide pipe 41 is in the shape of an opening, and the guide roof 61 is fixedly installed on the guide roof 61. The bottom wall and the top end of the guide top 61 are fixedly connected by welding.

In order to prevent rainwater from flowing in from the air inlet hole 431, the edge of the diversion top 61 extends to the outside of the side wall 411 of the diversion pipe, so that the diversion top 61 acts as a shield; in order to increase the air intake volume of the air inlet hole 431, as shown in FIG. It is shown that the upper surface of the guide top 61 is a downwardly concave curved plate, the lower surface of the guide top 61 guides the airflow direction, the top of the guide top 61 is provided with a liquid inlet, and one end of the liquid inlet pipe 62 is connected to the liquid inlet. In a fixed connection, the other end of the liquid inlet pipe 62 passes through the partition plate 412 and extends into the water passage 45 .

The cover plate 63 is an upwardly convex curved plate, the cover plate 63 is located on the top of the diversion roof 61, the edge of the cover plate 63 and the surface of the diversion roof 61 are fixedly connected by welding but not limited to welding, and the welding positions are all waterproof, such as As shown in FIGS. 2 and 10 , the top edge of the cover plate 63 is provided with an annular guide hole 631 .

The working principle of this embodiment:

Air cooling and heat dissipation: the direction of air flow is diverted from the lower surface of the guide top 61. After the air flow enters the air inlet hole 431, it passes through the ventilation chamber 43, the ventilation pipe 44, the inner room of the cabinet 1 in sequence, and then passes through the air outlet 31 in the ventilation window 3. The ventilation window 3 and the air inlet hole 431 are exhausted to achieve the purpose of mutual ventilation, and the heat in the cabinet 1 can be taken away.

Water cooling and heat dissipation: It can be dissipated by rainwater or by adding water by itself. The water body falls along the cover plate 63 and flows into the guide roof 61 through the guide hole 631, from the guide roof 61 into the liquid inlet pipe 62, and from the liquid inlet pipe 62 into the water passage 45 Inside, the liquid flows from the drain hole 451 of the water passage chamber 45 into the heat dissipation pipe 5 for storage, and the cabinet body 1 is dissipated through the evaporation of the stored water body.

The beneficial effects of this embodiment: adopting two heat dissipation methods to dissipate heat, improve heat dissipation performance, and solve the problem that a heat dissipation window is usually set on the side of the cabinet body 1 for heat dissipation, and the heat dissipation effect is not obvious in the outdoor power distribution cabinet used daily.

The above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The recorded technical solutions are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. The utility model provides an outdoor switch board which characterized in that: the cabinet comprises a cabinet body, a heat dissipation unit and a flow guide unit, wherein the heat dissipation unit is positioned on the cabinet body and comprises a flow guide pipe and a heat dissipation pipe;

a ventilation chamber and a water passing chamber are arranged in the flow guide pipe, an air inlet hole is formed in the ventilation chamber, and the ventilation chamber is communicated with the cabinet body, so that air enters the cabinet body from the air inlet hole;

the water conservancy diversion unit includes the feed liquor pipe, the roof of honeycomb duct is inserted and is extended to in the water passing chamber to the one end of feed liquor pipe, be equipped with the outage on the water passing chamber, the one end and the outage of cooling tube are connected, the other end of cooling tube extends to cabinet body side wall, causes water to store in getting into the cooling tube from the inlet.

2. The outdoor power distribution cabinet of claim 1, wherein: the ventilation chamber and the water passing chamber are not communicated with each other.

3. The outdoor power distribution cabinet of claim 2, wherein: the ventilating cabinet is characterized in that a partition plate is arranged between the ventilating chamber and the water passing chamber, a ventilating pipe is arranged between the ventilating chamber and the cabinet body, one end of the ventilating pipe is communicated with the partition plate, and the other end of the ventilating pipe is communicated with the top wall of the cabinet body.

4. The outdoor power distribution cabinet of claim 3, wherein: the top wall of the cabinet body is provided with a through hole, the through hole corresponds to the bottom end of the ventilation pipe, the inner diameter of the through hole is smaller than the outer diameter of the bottom end of the ventilation pipe, and the circle center of the through hole is located on the axis of the ventilation pipe.

5. The outdoor power distribution cabinet of claim 3, wherein: the diameter of the top end of the ventilation pipe is larger than that of the bottom end of the ventilation pipe.

6. The outdoor power distribution cabinet of claim 1, wherein: the cross-section of cooling tube is L shape, the cooling tube distributes in the both sides of honeycomb duct.

7. The outdoor power distribution cabinet of claim 1, wherein: the flow guide unit further comprises a flow guide top, the upper surface of the flow guide top is a curved plate which is concave downwards, the flow guide top is located at the top of the flow guide pipe, one end of the liquid inlet pipe is communicated with the bottom of the flow guide top, and the other end of the liquid inlet pipe penetrates through the partition plate and extends into the water passing chamber.

8. The outdoor power distribution cabinet of claim 7, wherein: the flow guide unit further comprises a cover plate, the cover plate is a curved plate protruding upwards, the cover plate is located at the top of the flow guide top, the edge of the cover plate is connected with the surface of the flow guide top, and flow guide holes are formed in the edge of the top wall of the cover plate.

9. The outdoor power distribution cabinet of claim 1, wherein: the ventilation window is located the diapire of the cabinet body, the lower extreme of the cabinet body is equipped with the frame that falls to the ground.

10. The outdoor power distribution cabinet of claim 9, wherein: the ventilation window includes air outlet and protection flange, the air outlet is located cabinet body diapire, the protection flange is located the air outlet all around.

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