CN115604988A

CN115604988A - Heat dissipation device for power conversion equipment

Info

Publication number: CN115604988A
Application number: CN202211196876.9A
Authority: CN
Inventors: 陶涛; 李昌峰; 曹振; 周磊; 王梦琦; 崔淑芹; 宫静峰; 王昊天
Original assignee: Linyi Power Supply Co of State Grid Shandong Electric Power Co Ltd
Current assignee: Linyi Power Supply Co of State Grid Shandong Electric Power Co Ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2023-01-13

Abstract

The invention relates to the technical field of power equipment, and provides a heat dissipation device for power conversion equipment, which comprises a shell assembly, the power conversion equipment and a heat dissipation fan assembly, wherein the shell assembly comprises an upper framework, a lower framework and support columns, the upper framework is connected with the lower framework through a plurality of support columns, the power conversion equipment is installed on the upper surface of the lower framework, an opening is formed in the surface of the upper framework, the heat dissipation fan assembly is installed in the opening, the heat dissipation device also comprises a rotating assembly, a medium circulation assembly and a driving part, the rotating assembly is installed between the upper framework and the lower framework and comprises a rotating shell and a cooling part, the cooling part is installed in the rotating shell, the rotating shell and the cooling part are located between two adjacent support columns, an air vent and a water guide groove are formed in the surface of the rotating shell, the medium cold end of the medium circulation assembly is connected with the upper end of the cooling part, the medium hot end is connected with the lower end of the cooling part, and the driving part is connected with the upper end of the cooling part in a meshed mode.

Description

Heat dissipation device for power conversion equipment

Technical Field

The invention relates to the technical field of power equipment, in particular to a heat dissipation device for power conversion equipment.

Background

Since various electric equipment and electric sites have rated voltage and frequency requirements, in many working places, the phenomenon that the electric equipment cannot be used due to the lack of power distribution transformation equipment is caused, the electric equipment is required to use the output power of a power transmission end after being converted by power conversion equipment, the power conversion equipment is equipment for converting alternating current into direct current or converting direct current into alternating current, the common power conversion equipment comprises a rectifier and an inverter, the rectifier is a device for converting alternating current into direct current, and can be used for a power supply device, a radio signal detection device and the like.

Although current power conversion equipment also can dispel the heat automatically, but the heat abstractor who is equipped with generally all through the direct radiating of heat dissipation fan, the radiating effect is relatively poor, and current heat abstractor can't adjust according to the weather environment of difference in addition, for the cooperation heat dissipation, power conversion equipment's shell part generally can set up thermovent or louvre, when meetting sand blown by the wind weather or overcast and rainy weather, sand blown by the wind and rainwater get into in the power conversion equipment through thermovent or louvre very easily.

Disclosure of Invention

The invention aims to provide a heat dissipation device for power conversion equipment, and aims to solve the problems that an existing heat dissipation device for the power conversion equipment is poor in heat dissipation effect and cannot prevent sand and dust and rain.

In order to achieve the above object, the present invention provides a heat dissipation device for a power conversion apparatus, including a housing assembly, the power conversion apparatus and a heat dissipation fan assembly, where the housing assembly includes an upper frame, a lower frame and support columns, the upper frame is connected to the lower frame through a plurality of support columns, the power conversion apparatus is mounted on the upper surface of the lower frame, an opening is formed in the surface of the upper frame, and the heat dissipation fan assembly is mounted in the opening, and further including a rotation assembly, a medium circulation assembly and a driving portion;

the rotating assembly is arranged between the upper framework and the lower framework and comprises a rotating shell and a cooling part, the cooling part is arranged in the rotating shell, the number of the rotating shell and the number of the cooling part are several, the rotating shell and the cooling part are positioned between two adjacent support columns, the surface of the rotating shell is provided with air holes and a water guide groove, and the air holes on two sides of the rotating shell are not aligned with each other;

the medium cold end of the medium circulation assembly is connected with the upper end of the cooling part, and the medium hot end is connected with the lower end of the cooling part;

the driving part is meshed with the upper end of the cooling part and is used for driving the rotating assembly to rotate around the axis of the rotating assembly.

As a further scheme of the invention, a central hole and a cavity are arranged in the rotating shell, the cavity is symmetrically distributed around the central hole, a clamping groove is formed between the central hole and the cavity, the upper end of the rotating shell is in contact connection with the lower surface of the upper framework, and the lower end of the rotating shell is in contact connection with the upper surface of the lower framework.

As a further scheme of the invention, the cooling part comprises a central pipe, a plurality of annular pipes and a transmission gear, the transmission gear is fixedly sleeved above the central pipe, the plurality of annular pipes are uniformly connected to the surface of the central pipe, a straight pipe is connected between each annular pipe and the central pipe, the central pipe is inserted and connected in the central hole, the annular pipes and the straight pipes are respectively embedded in the cavity and the clamping groove, the upper end and the lower end of the central pipe are respectively connected with a medium cold end and a medium hot end of the medium circulation component, and the driving part is connected with the transmission gear in a meshed manner.

As a further scheme of the invention, the upper surface of the lower framework inclines towards the outside from the inner side, the lower end of the rotating shell is provided with an opening, the upper surface of the lower framework is connected with a water retaining ring, the radiating fan assembly is positioned at the inner side of the water retaining ring, and the rotating assembly is positioned at the outer side of the water retaining ring.

As a further scheme of the invention, the driving part comprises a driving part and a transmission part, the driving part comprises a driving motor and a driving gear, the transmission part is an annular gear, the driving motor is connected with the driving gear through a driving shaft, the driving gear and the transmission gear are both meshed and connected with the transmission part, a fixed guide rail is installed above the upper framework, and the transmission part is rotationally connected in the fixed guide rail.

As a further aspect of the present invention, the heat dissipation fan assembly includes a plurality of ventilation plates and heat dissipation fan bodies, the plurality of heat dissipation fan bodies are mounted on the surface of the ventilation plate, and the ventilation plates are mounted in the openings.

As a further scheme of the present invention, the medium circulation component includes a medium cooling and conveying part, a medium cold end conveying main pipe, a medium cold end conveying branch pipe, a medium hot end return main pipe and a circulation pipe, one end of the medium cold end conveying branch pipe and one end of the medium hot end return branch pipe are respectively connected to two ends of the central pipe in an inserting manner, the other ends of the medium cold end conveying branch pipe and the medium hot end return branch pipe are respectively connected to the medium cold end conveying main pipe and the medium hot end return main pipe, the medium cold end conveying main pipe is connected to a cold end outlet of the medium cooling and conveying part, and the medium hot end return main pipe is connected to a hot end inlet of the medium cooling and conveying part through the circulation pipe.

The beneficial effects of the invention are: the rotating assembly arranged between the two adjacent supporting columns is connected with the medium circulating assembly, so that air entering the surface of the power conversion equipment from the outside can be cooled, the heat dissipation efficiency of the power conversion equipment is improved, the driving portion drives the rotating assembly to rotate to seal a gap between each supporting column and the corresponding supporting column, the electric power conversion equipment has the characteristics of dust prevention and rainwater prevention, and the driving portion drives the rotating assembly to rotate to the maximum gap between each driving portion and the corresponding supporting column, so that air circulation can be maximized, and the electric power conversion equipment has the characteristic of low energy consumption.

Drawings

Fig. 1 is a first perspective view of a heat sink for a power conversion apparatus according to an embodiment of the present invention.

FIG. 2 is a perspective view of a housing assembly in an embodiment of the present invention.

Fig. 3 is an assembly view of a housing assembly, power conversion equipment, and a heat dissipation fan assembly in an embodiment of the present invention.

Fig. 4 is a perspective view of a heat dissipating fan assembly according to an embodiment of the present invention.

Fig. 5 is a disassembled schematic view of the rotating assembly in the embodiment of the invention.

Fig. 6 is a perspective view of a rotating housing in an embodiment of the present invention.

FIG. 7 is a perspective view of a cooling portion in an embodiment of the present invention.

FIG. 8 is a perspective view of a media circulation assembly in an embodiment of the present invention.

Fig. 9 is a perspective view of a driving part in an embodiment of the present invention.

Fig. 10 is an assembly view of the drive section, the rotating assembly, and the media circulation assembly in an embodiment of the present invention.

Fig. 11 is a schematic structural view of the rotating assembly when closed according to the embodiment of the present invention.

Fig. 12 is a second perspective view of a heat sink for power conversion equipment according to an embodiment of the present invention.

Fig. 13 is a schematic structural view of the rotating assembly when opened according to the embodiment of the present invention.

Reference numeral 1-a shell assembly, 11-an upper framework, 12-a lower framework, 13-a support column, 14-a mounting seat, 15-a top cover, 16-an opening, 17-a water retaining ring, 18-a fixed guide rail, 2-power conversion equipment, 3-a heat dissipation fan assembly, 31-a ventilating plate, 32-a heat dissipation fan body, 4-a rotating assembly, 41-a rotating shell, 411-a central hole, 412-a cavity, 413-a ventilating hole, 414-a water chute, 42-a cooling part, 421-a central pipe, 422-an annular pipe, 423-a transmission gear, 5-a medium circulating assembly, 51-a medium cooling and conveying part, 52-a medium cold end conveying main pipe, 53-a medium cold end conveying branch pipe, 54-a medium hot end backflow branch pipe, 55-a medium hot end backflow main pipe, 56-a circulating pipe, 6-a driving part, 61-a driving part and 62-a transmission part.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.

Specific implementations of the present invention are described in detail below with reference to specific embodiments.

Referring to fig. 1 to 13, a heat dissipation device for power conversion equipment according to an embodiment of the present invention includes a housing assembly 1, power conversion equipment 2, and a heat dissipation fan assembly 3, where the housing assembly 1 includes an upper frame 11, a lower frame 12, and support pillars 13, the upper frame 11 is connected to the lower frame 12 through a plurality of support pillars 13, the power conversion equipment 2 is mounted on an upper surface of the lower frame 12, the upper frame 11, the lower frame 12, and the support pillars 13 are detachably connected, an opening 16 is formed in a surface of the upper frame 11, a plurality of wire outlet holes are formed in a surface of the lower frame 12, so that the power conversion equipment 2 is connected to external power equipment, and the heat dissipation fan assembly 3 is mounted in the opening 16, and further includes a rotation assembly 4, a medium circulation assembly 5, and a driving portion 6;

the rotating assembly 4 is installed between the upper framework 11 and the lower framework 12, the rotating assembly 4 comprises a rotating shell 41 and a cooling part 42, the cooling part 42 is installed in the rotating shell 41, the number of the rotating shell 41 and the number of the cooling part 42 are several, the rotating shell 41 and the cooling part 42 are located between two adjacent supporting columns 13, the surface of the rotating shell 41 is provided with air holes 413 and a water chute 414, and the air holes 413 on the two sides of the rotating shell 41 are not aligned with each other;

the cold end of the medium circulation component 5 is connected with the upper end of the cooling part 42, and the hot end of the medium is connected with the lower end of the cooling part 42;

the driving part 6 is engaged with the upper end of the cooling part 42 and is used for driving the rotating component 4 to rotate around the axis of the rotating component.

In the embodiment of the invention, the temperature sensors and the controllers are arranged around the power conversion equipment 2, the rotating assemblies 4 arranged between two adjacent supporting columns 13 are connected with the medium circulating assembly 5, so that air entering the surface of the power conversion equipment 2 from the outside can be cooled, the heat dissipation efficiency of the power conversion equipment 2 is improved, the driving part 6 drives the rotating assemblies 4 to rotate to seal gaps between the supporting columns 13 and the supporting columns 13, the sand-proof and rain-proof device has the characteristics of sand-proof and rain-proof, and the driving part 6 drives the rotating assemblies 4 to rotate to the maximum gaps between the rotating assemblies 4 and the supporting columns 13, so that the air circulation is maximized, and the device has the characteristic of low energy consumption.

Referring to fig. 1 to 10, in an embodiment of the present invention, a central hole 411 and a cavity 412 are disposed in the rotating housing 41, the cavity 412 is symmetrically distributed about the central hole 411, a slot is disposed between the central hole 411 and the cavity 412, an upper end of the rotating housing 41 is in contact connection with a lower surface of the upper frame 11, and a lower end of the rotating housing 41 is in contact connection with an upper surface of the lower frame 12.

Further, the cooling portion 42 includes a central tube 421, an annular tube 422 and a transmission gear 423, the fixed cover of the transmission gear 423 is installed above the central tube 421, the number of the annular tubes 422 is a plurality of, the annular tubes 422 are uniformly connected to the surface of the central tube 421, a straight tube is connected between the annular tubes 422 and the central tube 421, the central tube 421 is inserted into the central hole 411, the annular tubes 422 and the straight tube are respectively embedded into the cavity 412 and the clamping groove, the upper end and the lower end of the central tube 421 are respectively connected with the medium cold end and the medium hot end of the medium circulation component 5, and the driving portion 6 is engaged with the transmission gear 423.

In the embodiment of the present invention, the external air enters the cavity 412 through the air holes 413 on one side, and due to the design that the air holes 413 on the two sides of the rotating casing 41 are not aligned with each other, the air entering the cavity 412 does not directly enter the air holes 413 on the other side along a straight line, so that the time that the air stays in the cavity 412 is prolonged, and the air can sufficiently contact with the surface of the annular tube 422, and thus, the cooling medium in the annular tube 422 can sufficiently cool the air, thereby improving the heat dissipation efficiency and the cooling effect.

Referring to fig. 1 to 13, in an embodiment of the present invention, the upper surface of the lower frame 12 is inclined from the inner side to the outer side, the lower end of the rotating housing 41 is provided with an opening, the upper surface of the lower frame 12 is connected to a water retaining ring 17, the heat dissipating fan assembly 3 is located inside the water retaining ring 17, and the rotating assembly 4 is located outside the water retaining ring 17.

In the embodiment of the present invention, when rainwater or dust falls on the upper surface of the lower frame 12, the rainwater or dust will flow out along the inclined upper surface of the lower frame 12, and the design of the water retaining ring 17 is added, so that the present invention has the characteristics of sand prevention, dust prevention and rainwater prevention.

Referring to fig. 1 to 10, in one embodiment of the present invention, the driving part 6 includes a driving element 61 and a transmission element 62, the driving element 61 includes a driving motor and a driving gear, the transmission element 62 is a ring gear, the driving motor is connected to the driving gear through a driving shaft, the driving gear and the transmission gear 423 are both connected to the transmission element 62 in a meshing manner, a fixed guide rail 18 is installed above the upper frame 11, and the transmission element 62 is rotatably connected to the fixed guide rail 18.

In the embodiment of the present invention, the driving member 61 drives the central tube 421 to rotate through the transmission member 62 and the transmission gear 423, and the rotating central tube 421 drives the rotating housing 41 to rotate together through the straight tube and the locking groove.

Referring to fig. 1 to 4, in an embodiment of the present invention, the heat dissipation fan assembly 3 includes a plurality of ventilation plates 31 and heat dissipation fan bodies 32, the number of the heat dissipation fan bodies 32 is several, the plurality of heat dissipation fan bodies 32 are installed on the surface of the ventilation plate 31, the ventilation plate 31 is installed in the opening 16, the heat dissipation fan bodies 32 can bring heat around the power conversion device 2 below upward, and at the same time, outside air flows around the power conversion device 2.

Referring to fig. 1 to 10, in an embodiment of the present invention, the medium circulation component 5 includes a medium cooling and conveying part 51, a medium cold-end conveying manifold 52, a medium cold-end conveying branch 53, a medium hot-end return branch 54, a medium hot-end return manifold 55, and a circulation pipe 56, wherein one end of the medium cold-end conveying branch 53 and one end of the medium hot-end return branch 54 are respectively connected to two ends of the central pipe 421, the other end of the medium cold-end conveying branch 53 and the other end of the medium hot-end return branch 54 are respectively connected to the medium cold-end conveying manifold 52 and the medium hot-end return manifold 55, the medium cold-end conveying manifold 52 is connected to a cold-end outlet of the medium cooling and conveying part 51, and the medium hot-end return manifold 55 is connected to a hot-end inlet of the medium cooling and conveying part 51 through the circulation pipe 56.

In the embodiment of the present invention, the housing assembly 1 further includes a mounting seat 14 and a top cover 15, the top cover 15 is mounted above the upper framework, the mounting seat 14 is mounted below the lower framework 12, the medium cooling and conveying part 51 and the driving member 61 are mounted on the top cover 15, the medium cooling and conveying part 51 includes a refrigerator and a pump body, pressure generated by the pump body can convey cooling liquid in the refrigerator to each of the central pipe 421 and the annular pipe 422 through the medium cold-end conveying main pipe 52 and the medium cold-end conveying branch pipe 53, and the cooling liquid in each of the central pipe 421 and the annular pipe 422 enters the refrigerator along the medium hot-end return branch pipe 54, the medium hot-end return main pipe 55 and the circulation pipe 56, and thus, the operation is repeated cyclically.

The working process of the embodiment of the invention is as follows: when the wind and sand are heavy or the weather is rainy, the invention adopts the heat dissipation principle: firstly, a driving part 61 is started, the driving part 61 drives a central pipe 421 to rotate through a driving part 62 and a transmission gear 423, the rotating central pipe 421 drives a rotating shell 41 to rotate together through a straight pipe and a clamping groove until the rotating shell 41 seals a gap between a supporting column 13 and the supporting column 13, at the moment, when a heat dissipation fan body 32 on a ventilation board 31 works, outside air can pass through the rotating shell 41 through air holes 413 and blow to the surface of the power conversion equipment 2, and further, the heat dissipation function through air circulation is realized, the aperture of the air holes 413 is small, wind sand can not pass through the air holes 413 and enter the rotating shell 41, even if a small part of wind sand enters the rotating shell 41, due to the arrangement of an opening at the bottom of the rotating shell 41, the wind sand can fall on the upper surface of a lower framework 12 through the bottom opening under the action of gravity, and due to the fact that the upper surface of the lower framework 12 is an inclined plane, the wind sand can roll around along the inclined plane, prevent sand wind from piling up on the upper surface of the lower skeleton 12, when the surface temperature of the power conversion device 2 is higher, the temperature sensor arranged around the power conversion device 2 will automatically monitor the temperature change, and start the medium cooling and conveying part 51 through the internal controller, the medium cooling and conveying part 51 conveys the cooling liquid to each central tube 421 and annular tube 422 through the medium cold end conveying main pipe 52 and medium cold end conveying branch pipe 53, thus, the temperature in the rotating shell 41 will be reduced, when the air coming in through the air vent 413 passes near the annular tube 422, the air is blown to the surface of the power conversion device 2 after being cooled, thereby improving the heat dissipation efficiency, if the air contains water, the water will be condensed on the surface of the annular tube 422 and the surface of the rotating shell 41, the water drops condensed on the surface of the rotating shell 41 will automatically flow to the inclined lower skeleton along the water guide groove 414 under the action of gravity On the upper surface of the frame 12, the condensed water drops on the surface of the annular pipe 422 can drop on the upper surface of the lower frame 12 inclined through the opening under the action of gravity, and the condensed water drops can also take away sand and dust particles adhered on the surface of the annular pipe 422 and the surface of the rotating shell 41 in the dropping process;

in rainy days, when rainwater enters the rotating shell 41 through the air holes 413, the air holes 413 on the two sides of the rotating shell 41 are not aligned, so that the rainwater can only flow to the upper surface of the inclined lower framework 12 through the opening at the bottom along the inner wall of the rotating shell 41, and the design of the water retaining rings 17 on the upper surfaces of the upper and lower frameworks 12 prevents the rainwater from entering the surface of the power conversion equipment 2, so that the invention has the characteristics of dust prevention and rainwater prevention while maintaining a good heat dissipation effect.

When dry and clear weather occurs, the working principle of the invention is as follows: drive rotating assembly 4 through drive division 6 and rotate 90 degrees, stop when the gap between rotating casing 41 and support column 13 is the biggest, because the area of contact on external air and power conversion equipment 2 surface reaches the maximize, only need dispel the heat fan body 32 work can effectually dispel the heat to power conversion equipment 2 this moment, possess the characteristics that the radiating effect is good and the energy consumption is low.

Although several embodiments and examples of the present invention have been described for those skilled in the art, these embodiments and examples are presented as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in other various ways, and various omissions, substitutions, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalent scope thereof.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A heat dissipation device for power conversion equipment comprises a shell assembly, the power conversion equipment and a heat dissipation fan component, and is characterized in that the shell assembly comprises an upper framework, a lower framework and support columns, the upper framework is connected with the lower framework through a plurality of support columns, the power conversion equipment is installed on the upper surface of the lower framework, an opening is formed in the surface of the upper framework, the heat dissipation fan component is installed in the opening, and the heat dissipation device further comprises a rotating component, a medium circulation component and a driving part;

the cooling device comprises a rotating assembly, a cooling part, a plurality of supporting columns and a plurality of air holes, wherein the rotating assembly is arranged between an upper framework and a lower framework, the cooling part is arranged in the rotating housing, the rotating housing and the cooling part are arranged in a plurality of numbers, the rotating housing and the cooling part are arranged between two adjacent supporting columns, the surface of the rotating housing is provided with the air holes and the water guide grooves, and the air holes on two sides of the rotating housing are not aligned with each other;

2. The heat sink according to claim 1, wherein the rotating housing has a central hole and cavities, the cavities are symmetrically distributed about the central hole, a slot is disposed between the central hole and the cavities, an upper end of the rotating housing is in contact with a lower surface of the upper frame, and a lower end of the rotating housing is in contact with an upper surface of the lower frame.

3. The heat dissipation device of claim 2, wherein the cooling portion comprises a central tube, a plurality of annular tubes and a transmission gear, the transmission gear is fixedly sleeved above the central tube, the plurality of annular tubes are uniformly connected to the surface of the central tube, a straight tube is connected between each annular tube and the central tube, the central tube is inserted into the central hole, the annular tubes and the straight tubes are respectively embedded into the cavity and the clamping grooves, the upper end and the lower end of the central tube are respectively connected with the medium cold end and the medium hot end of the medium circulation assembly, and the driving portion is connected with the transmission gear in a meshed manner.

4. The heat sink for power conversion equipment according to claim 3, wherein the upper surface of the lower frame is inclined from inside to outside, the lower end of the rotating housing is provided with an opening, the upper surface of the lower frame is connected with a water retaining ring, the heat dissipating fan assembly is located inside the water retaining ring, and the rotating assembly is located outside the water retaining ring.

5. The heat dissipation device of claim 4, wherein the driving portion comprises a driving element and a transmission element, the driving element comprises a driving motor and a driving gear, the transmission element is a ring gear, the driving motor is connected with the driving gear through a driving shaft, the driving gear and the transmission gear are both meshed with the transmission element, a fixed guide rail is mounted above the upper framework, and the transmission element is rotatably connected in the fixed guide rail.

6. The heat dissipation device of claim 1, wherein the heat dissipation fan assembly includes a plurality of ventilation plates and a plurality of heat dissipation fan bodies, the plurality of heat dissipation fan bodies are mounted on a surface of the ventilation plate, and the ventilation plate is mounted in the opening.

7. The heat dissipation device of claim 3, wherein the medium circulation component comprises a medium cooling and conveying part, a medium cold-end conveying main pipe, a medium cold-end conveying branch pipe, a medium hot-end return main pipe and a circulation pipe, wherein one ends of the medium cold-end conveying branch pipe and the medium hot-end return branch pipe are respectively connected with two ends of the center pipe in an inserting manner, the other ends of the medium cold-end conveying branch pipe and the medium hot-end return branch pipe are respectively connected to the medium cold-end conveying main pipe and the medium hot-end return main pipe, the medium cold-end conveying main pipe is connected with a cold-end outlet of the medium cooling and conveying part, and the medium hot-end return main pipe is connected with a hot-end inlet of the medium cooling and conveying part through the circulation pipe.