CN111799684A - An outdoor power distribution cabinet with good heat dissipation performance - Google Patents

Abstract

The invention discloses an outdoor power distribution cabinet with good heat dissipation performance, which comprises a box body and a water cooling box. The box body is located on the side of the water cooling box, a temperature sensor is arranged in the box body, and a front door panel is hinged on one side of the box body. The other side of the body is provided with a U-shaped frame, and the open end of the U-shaped frame is fixedly connected to the outer side wall of the box body. It is in contact with the outer side wall of the box body and is located in the U-shaped frame. The other end of the heat dissipation component penetrates the heat dissipation hole and is located outside the U-shaped frame. The cold air vents corresponding to the outer side walls are connected with several cold air vents after passing through the water cooling box. The beneficial effect of the invention is that the temperature is simultaneously performed inside and outside the box of the power distribution cabinet, which greatly shortens the cooling time and improves the heat dissipation efficiency.

Description

An outdoor power distribution cabinet with good heat dissipation performance

technical field

The invention relates to the related technical field of power distribution cabinets, in particular to an outdoor power distribution cabinet with good heat dissipation performance.

Background technique

The distribution box can reasonably distribute electric energy and facilitate the opening and closing operation of the circuit. During all kinds of electricity in the distribution box, heat is generated in the distribution box. If the heat is not discharged in time, especially in a particularly high temperature environment or when the distribution box is working for a long time, the temperature in the distribution box will reach However, the existing power distribution boxes often do not have effective heat dissipation function, which affects the normal operation of circuit components inside the box, and even causes fires, posing a certain threat to personal safety.

SUMMARY OF THE INVENTION

The invention provides an outdoor power distribution cabinet with effective heat dissipation function and good heat dissipation performance in order to overcome the deficiency of the prior art that the distribution box does not have an effective heat dissipation function.

In order to achieve the above object, the present invention adopts the following technical solutions:

An outdoor power distribution cabinet with good heat dissipation performance includes a box body and a water cooling box, the box body is located on the side of the water cooling box, a temperature sensor is arranged in the box body, and a front door panel is hinged on one side of the box body , the other side of the box body is provided with a U-shaped frame, the open end of the U-shaped frame is fixedly connected with the outer side wall of the box body, the bottom panel of the U-shaped frame is provided with heat dissipation holes, the heat dissipation holes There is a heat dissipation assembly inside, one end of the heat dissipation assembly is in contact with the outer side wall of the box and is located in the U-shaped frame, the other end of the heat dissipation assembly is located outside the U-shaped frame through the heat dissipation hole, and the heat dissipation assembly is located in the U-shaped frame. The outer end of the frame penetrates through the water-cooling box, and is provided with a plurality of cold air vents corresponding to the outer side walls of the box.

The box body is located on the side of the water-cooled box. There is a temperature sensor in the box body. One side of the box body is hinged with a front door panel. The other side of the box body is provided with a U-shaped frame. Fixed connection, the bottom panel of the U-shaped frame is provided with a heat dissipation hole, and a heat dissipation component is arranged in the heat dissipation hole. Located outside the box, the end of the heat dissipation component located outside the box penetrates the water-cooled box, and is provided with several cold air vents corresponding to the outer side walls of the box. The temperature sensor senses the temperature inside the box. When the temperature exceeds the set value, the temperature sensor sends a signal to the control system, and the control system controls the heat dissipation component to absorb the heat inside the box to reduce the heat inside the box; at the same time, Since part of the heat will be conducted to the side wall of the box, the air flow after absorbing the heat in the heat dissipation component is cooled by the water cooling box, and is blown to the outer side wall of the box body through the cold air outlet, so as to reduce the heat of the outer side wall of the box and achieve an effective the purpose of the cooling function.

Preferably, the cooling assembly includes a cooling fin and a cooling fan, the cooling fin is located in the U-shaped frame, one side of the cooling fin is in contact with the outer side wall of the box body, and the other side of the cooling fin is connected with a cooling connecting plate, the One side is fixedly connected to the cooling fin, and the other side of the heat dissipation connection plate is provided with several fins evenly distributed, the fins are located in the heat dissipation holes, and the heat dissipation fan is detachably connected to the bottom panel of the U-shaped frame and is located outside the U-shaped frame , the cooling fan is provided with an air inlet and an air outlet corresponding to the position of the heat dissipation hole, and an air duct assembly is arranged on the air outlet. The other end of the pipe assembly penetrates through the water cooling box and is communicated with several cold air outlets. The high temperature inside the box is conducted to the outer wall of the box, and the cooling fins absorb the heat on the outer wall of the box and conduct it to the fins through the heat dissipation connecting plate. Reduce the temperature inside the box and on the outer wall of the box; since the air duct assembly runs through the water-cooled box, the water-cooled box absorbs the heat in the air duct assembly to reduce the heat of the airflow in the air duct assembly to form cold air, which is finally blown through the cold air outlet The outer side wall of the box is cooled to the outer side wall of the box body; the fins are beneficial to increase the heat dissipation area, which is more conducive to the rapid and efficient collection of heat by the cooling fan, and the heat dissipation efficiency is improved; The cooling time is greatly shortened, and the instantaneously generated high temperature in the box can be dissipated in time, which is more conducive to timely protection of circuit components from damage, and greatly improves the heat dissipation effect.

Preferably, the cooling sheet includes a cooling surface and a heat dissipation surface, the cooling surface is located on one side of the cooling sheet, the heat dissipation surface is located at the other side corresponding to the cooling sheet, and both the cooling surface and the heat dissipation surface of the cooling sheet are coated with thermally conductive silicone grease, The cooling surface of the cooling sheet is in contact with the outer side wall of the box body through thermal conductive silicone grease, and the heat dissipation surface of the cooling sheet is connected with the heat dissipation connecting plate through the thermal conductive silicone grease. The outer side wall of the box collects the heat dissipated inside the box and conducts it to the cooling surface through the thermal conductive silicone grease, and the heat dissipation surface conducts the heat to the fins on the cooling connection board through the thermal conductive silicone grease; the thermal conductive silicone grease is conducive to improving the heat conduction efficiency. , so as to improve the cooling effect.

Preferably, the air outlet of the cooling fan is provided with a matching refrigerant plate, the refrigerant plate is provided with a plurality of through holes, the air outlet of the cooling fan is communicated with the interior of the air duct assembly through a plurality of through holes, and the refrigerant plate is provided with a plurality of through holes. There are refrigerant pipes, which are distributed in the refrigerant plate in an S-shaped curve. The refrigerant plate cools the heat delivered by the cooling fan at an extreme speed, and outputs it through the through-hole, which greatly improves the cooling efficiency.

Preferably, the box body is composed of a top plate, a bottom plate, a rear mounting plate and two side plates, the U-shaped frame is located at the center of the rear mounting plate, one side of the front door is hinged to one of the side plates, and the other side of the front door is hinged to one of the side plates. A lock is provided, and the front door panel is connected with another side panel through the lock. The design of the front door panel is conducive to the maintenance operation of the staff.

Preferably, the cooling surface of the cooling sheet is in contact with the center of the rear mounting plate through thermal conductive silicone grease. Since the heat inside the box will be conducted to the top plate, bottom plate, side plate, front door plate and rear mounting plate, the cooling sheet absorbs the heat on the rear mounting plate to reduce the heat of the rear mounting plate, and the high heat will be conducted to the low heat. , The heat absorbed by the top plate, bottom plate, side plate and front door plate is conducted to the rear mounting plate, which is conducive to absorbing the internal heat of the box and reducing the heat of the outer wall of the box.

Preferably, the air duct assembly includes a main air duct, an inner radiating pipe and two outer radiating pipes, one end of the main air duct is detachably connected to the air outlet of the cooling fan, and the air outlet is connected to the main air through several through holes on the refrigerant plate. The inside of the pipe is connected, the other end of the main air pipe is provided with a four-way connection valve, one end of the inner heat dissipation pipe is detachably connected to the main air pipe through the four-way connection valve, and the other end of the inner heat dissipation pipe runs through one of the side plates and the box. The interior of the body is connected, and the two outer heat pipes are symmetrically distributed up and down with the center axis of the heat dissipation hole as the center. The other end of the outer heat pipe penetrates through the box body and the water cooling box in turn and communicates with several cold air outlets. The air cooled by the refrigerant plate passes through the four-way connecting valve on the main air pipe, and is transported to the inside of the box through the inner heat pipe for cooling. It can cool the inside and outside of the power distribution cabinet at the same time, which greatly shortens the cooling time.

Preferably, the part of the outer heat pipe penetrating the box body is distributed in the rear mounting plate in an S-shaped curve. Since the cooling surface of the cooling sheet is connected to the center of the rear mounting plate through thermal grease, the cooling surface mainly collects the heat at the center of the rear mounting plate, and it takes a certain time for the heat from the top and bottom of the rear mounting plate to conduct to the center. The heat conduction of the mounting plate is not timely enough, so the airflow cooled by the refrigerant plate is connected to the external heat pipe through the four-way connecting valve on the main air duct, and the top and bottom of the rear mounting plate are directly cooled first, so as to realize the cooling of the inside of the box. At the same time as the cooling of the outer side wall, the heat from the top and bottom of the rear mounting plate is prevented from being conducted to the center for heat dissipation, which greatly shortens the heat dissipation time; then the outer heat pipe cools the internal airflow through the water cooling box again. The cooling air is blown to the outer side wall of the box to cool the outer side wall of the box, which greatly improves the cooling efficiency and cooling effect.

Preferably, the part of the outer heat pipe that penetrates the water-cooling box is distributed in the water-cooling box in a spiral shape. It is beneficial to prolong the cooling time of the airflow and improve the cooling effect.

Preferably, the front door panel is provided with an air outlet, and the air outlet is provided with a corresponding rain cover. The air outlet is conducive to the outflow of airflow used for heat dissipation inside the box, and the rain cover can effectively prevent rainwater from infiltrating the inside of the distribution cabinet from the air outlet, affecting the normal operation of circuit components.

The beneficial effects of the present invention are: simultaneously cooling the inside and outside of the box of the power distribution cabinet, greatly shortening the cooling time, and being able to dissipate heat in time for the instantaneously generated high temperature in the box, thereby being more conducive to timely protection of circuit components from damage, greatly reducing the time required for cooling. Improve the heat dissipation effect; greatly shorten the heat dissipation time and improve the heat dissipation efficiency.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the sectional view of A-A in Fig. 1;

FIG. 3 is a partial enlarged view of A in FIG. 2 .

In the picture: 1. Box body, 2. Water cooling box, 3. Front door panel, 4. Heat dissipation hole, 5. Heat dissipation assembly, 6. Cold air outlet, 7. Cooling sheet, 8. Cooling fan, 9. Rear mounting plate, 10 . Cooling connection plate, 11. Fins, 12. Air duct assembly, 13. Refrigerant plate, 14. Top plate, 15. Bottom plate, 16. U-shaped frame, 17. Side plate, 18. Main air duct, 19. Internal heat dissipation Tube, 20. External heat pipe, 21. Four-way connecting valve, 22. Rain cover.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

In the embodiment shown in FIG. 1, an outdoor power distribution cabinet with good heat dissipation performance includes a box body 1 and a water cooling box 2. The box body 1 is located on the side of the water cooling box 2, and the box body 1 is provided with a temperature sensor. As shown in FIG. 2, one side of the box body 1 is hinged with the front door panel 3, and the other side of the box body 1 is provided with a U-shaped frame 16. The open end of the U-shaped frame 16 is fixedly connected to the outer side wall of the box body 1. The bottom panel of the frame 16 is provided with a heat dissipation hole 4, and a heat dissipation assembly 5 is arranged in the heat dissipation hole 4. One end of the heat dissipation assembly 5 is in contact with the outer side wall of the box body 1 and is located in the U-shaped frame 16, and the other side of the heat dissipation assembly 5 is located. One end of the heat dissipation hole 4 is located outside the U-shaped frame 16 , as shown in FIG. 1 , one end of the heat dissipation assembly 5 located outside the U-shaped frame 16 penetrates through the water cooling box 2 , and is provided with a number of cooling air ports corresponding to the outer wall of the box body 1 . 6. The heat dissipating assembly 5 is communicated with a plurality of cold air outlets 6 after passing through the water cooling box 2 .

As shown in FIG. 3 , the cooling assembly 5 includes a cooling fin 7 and a cooling fan 8 . The cooling fin 7 is located in the U-shaped frame 16 , one side of the cooling fin 7 is in contact with the outer wall of the box 1 , and the other side of the cooling fin 7 The side is connected with a heat dissipation connecting plate 10, one side of the heat dissipation connecting plate 10 is fixedly connected with the cooling fin 7, and the other side of the heat dissipation connecting plate 10 is provided with a number of evenly distributed fins 11, and the fins 11 are located in the heat dissipation holes 4. The cooling fan 8 is detachably connected to the bottom panel of the U-shaped frame 16 and is located outside the U-shaped frame 16. The cooling fan 8 is provided with an air inlet and an air outlet corresponding to the position of the cooling hole 4, and an air duct assembly is arranged on the air outlet. 12. As shown in FIG. 1, one end of the air duct assembly 12 is detachably connected to the air outlet, the cold air ports 6 are distributed on the air duct assembly 12, and the other end of the air duct assembly 12 penetrates through the water cooling box 2 and is connected to several cold air ports 6. connected.

As shown in FIG. 3 , the cooling fin 7 includes a cooling surface and a cooling surface, the cooling surface is located on one side of the cooling fin 7 , and the cooling surface is located on the other side corresponding to the cooling fin 7 , the cooling surface and the cooling surface of the cooling fin 7 are both Coated with thermally conductive silicone grease, the cooling surface of the cooling sheet 7 is in contact with and connected to the outer side wall of the box 1 through the thermally conductive silicone grease. The air outlet of the cooling fan 8 is provided with a matching refrigerant plate 13, the refrigerant plate 13 is provided with a plurality of through holes, and the air outlet of the cooling fan 8 is communicated with the interior of the air duct assembly 12 through a plurality of through holes, and the refrigerant plate 13 is provided with refrigerant pipes, and the refrigerant pipes are distributed in the refrigerant plate 13 in an S-shaped curve.

As shown in Figures 1 and 2, the box body 1 is composed of a top plate 14, a bottom plate 15, a rear mounting plate 9 and two side plates 17, the U-shaped frame 16 is located at the center of the rear mounting plate 9, and one of the front door panels 3 The side is hinged with one of the side panels 17 , the other side of the front door panel 3 is provided with a lock catch, and the front door panel 3 is connected with the other side panel 17 through the lock catch.

As shown in FIG. 2 , the cooling surface of the cooling sheet 7 is in contact with the center of the rear mounting plate 9 through thermal conductive silicone grease.

As shown in FIG. 1, the air duct assembly 12 includes a main air duct 18, an inner heat dissipation pipe 19 and two outer heat dissipation pipes 20. One end of the main air duct 18 is detachably connected to the air outlet of the cooling fan 8, and the air outlet passes through the refrigerant plate. Several through holes on 13 communicate with the interior of the main air duct 18, the other end of the main air duct 18 is provided with a four-way connecting valve 21, and one end of the inner radiating pipe 19 can be connected to the main air duct 18 through the four-way connecting valve 21. Disassembled and connected, the other end of the inner heat pipe 19 penetrates one of the side plates 17 and communicates with the inside of the box 1. The two outer heat pipes 20 are symmetrically distributed up and down with the center axis of the heat dissipation hole 4 as the center. One end of the outer heat pipe 20 The four-way connecting valve 21 is detachably connected to the main air pipe 18. The cold air ports 6 are distributed on the outer heat dissipation pipe 20. The other end of the outer heat dissipation pipe 20 penetrates the box body 1 and the water cooling box 2 in turn and is connected to several cold air ports 6. Pass. The part of the outer heat pipe 20 penetrating the box body 1 is distributed in the rear mounting plate 9 in an S-shaped curve. The part of the outer heat pipe 20 penetrating the water-cooling box 2 is distributed in the water-cooling box 2 in a spiral shape.

As shown in FIG. 2 , the front door panel 3 is provided with an air outlet, and the air outlet is provided with a corresponding rain cover 22 .

The temperature sensor senses the temperature inside the box 1, and when the temperature exceeds the set value, the temperature sensor sends a signal to the control system, and the control system controls the refrigerating sheet 7 to work. The heat inside the box 1 is conducted to the front door panel 3 , the top panel 14 , the bottom panel 15 , the two side panels 17 and the rear mounting plate 9 , and the cooling sheet absorbs the heat on the rear mounting plate 9 to reduce the heat of the rear mounting plate 9 . The high heat will be conducted to the low heat. The front door panel 3, the top panel 14, the bottom panel 15 and the side panel 17 absorb the heat inside the box 1 and conduct the high heat to the cooled rear mounting plate 9. The heat collected at the center is conducted to the cooling surface through the thermal conductive silicone grease, and the heat dissipation surface conducts the heat to the fins 11 on the cooling connection plate 10 through the thermal conductive silicone grease. The refrigerant plate 13 at the air outlet cools down, and the cooled airflow is connected to the inner heat pipe 19 through the four-way connecting valve 21 on the main air duct 18 and transported to the interior of the box 1 for cooling; The connection valve 21 is connected to the outer heat pipe 20, and the top and bottom of the rear mounting plate 9 are directly cooled first, so as to realize the cooling of the inside and the outer side wall of the box body 1, and greatly shorten the heat dissipation time; then the outer heat pipe 20 The air flow inside the water cooling box 2 is cooled again to form cold air, which is blown to the outer wall of the box body 1 through the cold air port 6 to cool the outer wall of the box body 1, which greatly improves the cooling efficiency and cooling effect.

Claims (10)

1. An outdoor power distribution cabinet with good heat dissipation performance is characterized by comprising a cabinet body (1) and a water cooling cabinet (2), wherein the cabinet body (1) is located on the side face of the water cooling cabinet (2), a temperature sensor is arranged in the cabinet body (1), a front door panel (3) is hinged to one side of the cabinet body (1), a U-shaped frame (16) is arranged on the other side of the cabinet body (1), the open end of the U-shaped frame (16) is fixedly connected with the outer side wall of the cabinet body (1), heat dissipation holes (4) are formed in a bottom panel of the U-shaped frame (16), heat dissipation assemblies (5) are arranged in the heat dissipation holes (4), one ends of the heat dissipation assemblies (5) are in contact with the outer side wall of the cabinet body (1) and located in the U-shaped frame (16), the other ends of the heat dissipation assemblies (5) penetrate through the heat dissipation holes (4) and are located outside the U-shaped frame (16), and one ends of the heat, and a plurality of cold air ports (6) corresponding to the outer side wall of the box body (1) are arranged, and the radiating component (5) penetrates through the water cooling box (2) and then is communicated with the plurality of cold air ports (6).

2. The outdoor power distribution cabinet with good heat dissipation performance according to claim 1, wherein the heat dissipation assembly (5) comprises a refrigeration sheet (7) and a heat dissipation fan (8), the refrigeration sheet (7) is located in a U-shaped frame (16), one side of the refrigeration sheet (7) is in contact with the outer side wall of the cabinet body (1), the other side of the refrigeration sheet (7) is connected with a heat dissipation connecting plate (10), one side of the heat dissipation connecting plate (10) is fixedly connected with the refrigeration sheet (7), the other side of the heat dissipation connecting plate (10) is provided with a plurality of uniformly distributed fins (11), the fins (11) are located in the heat dissipation holes (4), the heat dissipation fan (8) is detachably connected with the bottom panel of the U-shaped frame (16) and located outside the U-shaped frame (16), and the heat dissipation fan (8) is provided with an air inlet and an air outlet corresponding to the positions of the heat dissipation holes (4), be equipped with tuber pipe subassembly (12) on the air outlet, the one end and the air outlet of tuber pipe subassembly (12) can be dismantled and be connected, cold wind mouth (6) distribute on tuber pipe subassembly (12), the other end of tuber pipe subassembly (12) is linked together with a plurality of cold wind mouth (6) after running through water-cooling box (2).

3. The outdoor power distribution cabinet with good heat dissipation performance according to claim 2, characterized in that the refrigeration piece (7) comprises a refrigeration surface and a heat dissipation surface, the refrigeration surface is located on one side of the refrigeration piece (7), the heat dissipation surface is located on the other side corresponding to the refrigeration piece (7), the refrigeration surface and the heat dissipation surface of the refrigeration piece (7) are coated with heat-conducting silicone grease, the refrigeration surface of the refrigeration piece (7) is in contact with the outer side wall of the box body (1) through the heat-conducting silicone grease, and the heat dissipation surface of the refrigeration piece (7) is connected with the heat dissipation connecting plate (10) through the heat-conducting silicone grease.

4. The outdoor power distribution cabinet with good heat dissipation performance according to claim 2 or 3, wherein an air outlet of the heat dissipation fan (8) is provided with a refrigerant plate (13) matched with the air outlet, the refrigerant plate (13) is provided with a plurality of through holes, the air outlet of the heat dissipation fan (8) is communicated with the inside of the air pipe assembly (12) through the plurality of through holes, refrigerant pipes are arranged in the refrigerant plate (13), and the refrigerant pipes are distributed in the refrigerant plate (13) in an S-shaped curve.

5. The outdoor power distribution cabinet with good heat dissipation performance according to claim 2 or 3, wherein the box body (1) is composed of a top plate (14), a bottom plate (15), a rear mounting plate (9) and two side plates (17), the U-shaped frame (16) is located at the center of the rear mounting plate (9), one side of the front door panel (3) is hinged to one side plate (17), the other side of the front door panel (3) is provided with a lock catch, and the front door panel (3) is connected with the other side plate (17) through the lock catch.

6. The outdoor power distribution cabinet with good heat dissipation performance as recited in claim 5, wherein the refrigeration surface of the refrigeration sheet (7) is in contact with the center position of the rear mounting plate (9) through heat-conducting silicone grease.

7. The outdoor power distribution cabinet with good heat dissipation performance as claimed in claim 5, wherein the air duct assembly (12) comprises a main air duct (18), an inner heat dissipation pipe (19) and two outer heat dissipation pipes (20), one end of the main air duct (18) is detachably connected with an air outlet of the heat dissipation fan (8), the air outlet is communicated with the inside of the main air duct (18) through a plurality of through holes on the cooling medium plate (13), a four-way connection valve (21) is arranged at the other end of the main air duct (18), one end of the inner heat dissipation pipe (19) is detachably connected with the main air duct (18) through the four-way connection valve (21), the other end of the inner heat dissipation pipe (19) penetrates through one side plate (17) to be communicated with the inside of the box body (1), the two outer heat dissipation pipes (20) are vertically and symmetrically distributed by taking the central axis of the heat dissipation holes (4) as the center, and one end of each outer heat dissipation pipe (20) is detachably connected with the main And the cold air ports (6) are distributed on the outer heat dissipation pipes (20), and the other ends of the outer heat dissipation pipes (20) sequentially penetrate through the box body (1) and the water cooling box (2) and then are communicated with the plurality of cold air ports (6).

8. The outdoor power distribution cabinet with good heat dissipation performance as recited in claim 7, wherein the part of the outer heat dissipation pipe (20) penetrating through the cabinet body (1) is distributed in the rear mounting plate (9) in an S-shaped curve.

9. The outdoor power distribution cabinet with good heat dissipation performance as recited in claim 7, wherein the part of the outer heat dissipation pipe (20) penetrating through the water cooling tank (2) is spirally distributed in the water cooling tank (2).

10. The outdoor power distribution cabinet with good heat dissipation performance as recited in claim 1, wherein an air outlet is formed in the front door panel (3), and a rain cover (22) corresponding to the air outlet is arranged on the air outlet.

Images