CN115604988A - Heat dissipation device for power conversion equipment - Google Patents

Abstract

The present invention relates to the technical field of electric power equipment, and provides a heat dissipation device for power conversion equipment, which includes a housing assembly, power conversion equipment, and a cooling fan assembly. The housing assembly includes an upper frame, a lower frame and a support column, and the upper frame passes through A number of support columns are connected to the lower frame, and the power conversion equipment is installed on the upper surface of the lower frame. There is an opening on the surface of the upper frame, and the cooling fan assembly is installed in the opening. It also includes a rotating assembly, a medium circulation assembly and a driving part. The rotating assembly is installed on the upper frame. and the lower frame, the rotating assembly includes a rotating housing and a cooling part, the cooling part is installed in the rotating housing, the rotating housing and the cooling part are located between two adjacent support columns, and the surface of the rotating housing is provided with air holes and The water guide groove, the medium cold end of the medium circulation component is connected to the upper end of the cooling part, the medium hot end is connected to the lower end of the cooling part, and the driving part is meshed with the upper end of the cooling part. It has the characteristics of good heat dissipation, dustproof and rainproof .

Description

A cooling device for power conversion equipment

technical field

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

Background technique

Since various electrical equipment and electrical places have rated voltage and frequency requirements, in many workplaces, due to the lack of power distribution and transformation equipment, the voltage does not match and cannot be used. It is necessary to use power conversion equipment to convert the transmission terminal After the output power is converted, it can be used by electrical equipment. Power conversion equipment is a device that converts alternating current into direct current or converts direct current into alternating current. Common power conversion equipment includes rectifiers and inverters. Rectifiers are devices that convert alternating current into direct current , can be used for power supply and detection of radio signals, etc.

Although the existing power conversion equipment can also automatically dissipate heat, the heat dissipation devices are usually directly dissipated by cooling fans, and the heat dissipation effect is relatively poor, and the existing heat dissipation devices cannot be adjusted according to different weather environments. , The casing part of the power conversion equipment is generally equipped with cooling vents or cooling holes. When encountering sandstorm weather or cloudy and rainy weather, sand and rainwater can easily enter the power conversion equipment through the cooling holes or cooling holes.

Contents of the invention

The object of the present invention is to provide a heat sink for power conversion equipment, aiming to solve the problems of poor heat dissipation, inability to prevent dust and rain when using an existing heat sink for power conversion equipment.

In order to achieve the above object, the present invention provides the following technical solution, a heat dissipation device for power conversion equipment, including a housing assembly, power conversion equipment and cooling fan assembly, the housing assembly includes an upper frame, a lower frame and a support column , the upper frame is connected to the lower frame through several support columns, the power conversion equipment is installed on the upper surface of the lower frame, and an opening is opened on the surface of the upper frame, and the cooling fan assembly is installed in the opening, and also includes a rotating assembly, a medium Circulation components and drives;

The rotating assembly is installed between the upper frame and the lower frame, the rotating assembly includes a rotating housing and a cooling part, the cooling part is installed in the rotating housing, the number of the rotating housing and the cooling part is several, The rotating housing and the cooling part are located between two adjacent supporting columns, and the surface of the rotating housing is provided with air holes and water guide grooves, and the air holes on both sides of the rotating housing are not aligned with each other;

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

The driving part is engaged with the upper end of the cooling part, and is used to drive the rotating assembly to rotate around its own axis.

As a further solution of the present invention, a central hole and a cavity are provided in the rotating housing, and the cavities are symmetrically distributed about the central hole, and a card slot is opened between the central hole and the cavity, and the upper end of the rotating housing It is in contact with the lower surface of the upper frame, and the lower end of the rotating housing is in contact with the upper surface of the lower frame.

As a further solution of the present invention, the cooling part includes a central pipe, an annular pipe and a transmission gear, the transmission gear is fixedly sleeved above the central pipe, the number of the annular pipes is several, and several annular pipes are evenly connected The surface of the central tube, a straight tube is connected between the annular tube and the central tube, the central tube is inserted into the central hole, the annular tube and the straight tube are embedded in the cavity and the slot respectively, the central The upper and lower ends of the pipe are respectively connected with the medium cold end and the medium hot end of the medium circulation assembly, and the driving part is meshed with the transmission gear.

As a further solution of the present invention, the upper surface of the lower frame is inclined from the inner side to the outer side, 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, and the heat dissipation fan assembly is located on the water retaining ring. Inside, the rotating assembly is located outside the water retaining ring.

As a further solution of the present invention, the drive part includes a drive part and a transmission part, the drive part includes a drive motor and a drive gear, the transmission part is a ring gear, the drive motor is connected to the drive gear through a drive shaft, and the Both the driving gear and the transmission gear are meshed with the transmission part, a fixed guide rail is installed above the upper frame, and the transmission part is rotatably connected in the fixed guide rail.

As a further solution of the present invention, the heat dissipation fan assembly includes a ventilation plate and a heat dissipation fan body, the number of the heat dissipation fan bodies is several, and several heat dissipation fan bodies are installed on the surface of the ventilation plate, and the ventilation plate is installed in the opening .

As a further solution of the present invention, the medium circulation assembly 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 branch pipe, a medium hot end return main pipe, and a circulation pipe. One end of the delivery branch pipe at the end and the return branch pipe at the hot end of the medium are inserted and connected with the two ends of the center pipe respectively, and the other ends of the delivery branch pipe at the cold end of the medium and the return branch pipe at the hot end of the medium are respectively connected to the main delivery pipe at the cold end of the medium and the hot end of the medium On the return main pipe, the medium cold end delivery main pipe is connected to the cold end outlet of the medium cooling and conveying part, and the medium hot end return main pipe is connected to the hot end inlet of the medium cooling and conveying part through a circulation pipe.

The beneficial effects of the present invention are: the rotating assembly arranged between two adjacent support columns is connected with the medium circulation assembly, which can cool down the air entering the surface of the power conversion equipment from the outside, thereby improving the heat dissipation of the power conversion equipment Efficiency, when the driving part drives the rotation assembly to rotate to seal the gap between the support column and the support column, the present invention has the characteristics of dustproof and rainproof. When the gap is the largest, the air circulation can be maximized, so that the present invention has the characteristics of low energy consumption.

Description of drawings

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

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

Fig. 3 is an assembly diagram of the housing assembly, the power conversion device and the cooling fan assembly in the embodiment of the present invention.

Fig. 4 is a perspective view of the cooling fan assembly in the embodiment of the present invention.

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

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

Fig. 7 is a perspective view of the cooling part in the embodiment of the present invention.

Fig. 8 is a perspective view of the medium circulation assembly in the embodiment of the present invention.

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

Fig. 10 is an assembly diagram of the driving part, the rotating assembly and the medium circulation assembly in the embodiment of the present invention.

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

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 in the embodiment of the present invention when it is opened.

Reference signs 1-housing assembly, 11-upper skeleton, 12-lower skeleton, 13-support column, 14-installation seat, 15-top cover, 16-opening, 17-water retaining ring, 18-fixed guide rail, 2-power conversion equipment, 3-radiating fan assembly, 31-ventilation plate, 32-radiating fan body, 4-rotating assembly, 41-rotating housing, 411-central hole, 412-cavity, 413-venting hole, 414 -Water guide tank, 42-cooling part, 421-central pipe, 422-ring pipe, 423-transmission gear, 5-medium circulation assembly, 51-medium cooling and conveying part, 52-medium cold end delivery main pipe, 53-medium cooling End delivery branch pipe, 54-medium hot end return branch pipe, 55-medium hot end return main pipe, 56-circulation pipe, 6-drive part, 61-driver part, 62-transmission part.

detailed description

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

The specific implementation of the present invention will be described in detail below in conjunction with specific embodiments.

Referring to Figures 1 to 13, a heat sink for power conversion equipment provided by an embodiment of the present invention includes a housing assembly 1, a power conversion equipment 2, and a cooling fan assembly 3, and the housing assembly 1 includes an upper frame 11. Lower frame 12 and support columns 13. The upper frame 11 is connected to the lower frame 12 through several support columns 13. The power conversion equipment 2 is installed on the upper surface of the lower frame 12. The upper frame 11, lower frame 12 and support The columns 13 are detachably connected, the upper frame 11 has an opening 16 on the surface, and the lower frame 12 has a plurality of outlet holes on the surface to facilitate the connection of the power conversion equipment 2 with external power equipment. The cooling fan assembly 3 Installed in the opening 16, it also includes a rotating assembly 4, a medium circulation assembly 5 and a driving part 6;

The rotating assembly 4 is installed between the upper frame 11 and the lower frame 12, the rotating assembly 4 includes a rotating housing 41 and a cooling part 42, the cooling part 42 is installed in the rotating housing 41, and the rotating housing 41 and the number of cooling parts 42 are several, the rotating housing 41 and the cooling part 42 are located between two adjacent support columns 13, the surface of the rotating housing 41 is provided with air holes 413 and water guide grooves 414, The ventilation holes 413 on both sides of the rotating housing 41 are not aligned with each other;

The medium cold end of the medium circulation assembly 5 is connected to the upper end of the cooling part 42, and the medium hot end is connected to the lower end of the cooling part 42;

The driving part 6 is engaged with the upper end of the cooling part 42 to drive the rotating assembly 4 to rotate around its own axis.

In the embodiment of the present invention, temperature sensors and controllers are installed around the power conversion equipment 2, and the rotating assembly 4 arranged between two adjacent support columns 13 is connected to the medium circulation assembly 5, which can make the power conversion from the outside The air on the surface of the equipment 2 is cooled, thereby improving the heat dissipation efficiency of the power conversion equipment 2. The driving part 6 drives the rotating assembly 4 to rotate to seal the gap between the support columns 13 and the support columns 13, so that the present invention has anti- The features of dust and rain resistance, the driving part 6 can maximize the air circulation when the driving part 6 drives the rotating assembly 4 to rotate to the largest gap with the support column 13, so that the present invention has the characteristics of low energy consumption.

Referring to Fig. 1 to Fig. 10, in one embodiment of the present invention, a central hole 411 and a cavity 412 are arranged in the rotating housing 41, the cavity 412 is symmetrically distributed with respect to the central hole 411, and the central hole 411 A slot is provided between the cavity 412 , the upper end of the rotating housing 41 is in contact with the lower surface of the upper frame 11 , and the lower end of the rotating housing 41 is in contact with the upper surface of the lower frame 12 .

Further, the cooling part 42 includes a central pipe 421, an annular pipe 422 and a transmission gear 423, the transmission gear 423 is fixedly sleeved above the central pipe 421, the number of the annular pipes 422 is several, and the number of several annular pipes 422 is evenly connected on the surface of the central tube 421, and a straight tube is connected between the annular tube 422 and the central tube 421, and the central tube 421 is plugged and connected in the central hole 411, and the annular tube 422 and the straight tube are respectively embedded in In the cavity 412 and the slot, the upper and lower ends of the central tube 421 are respectively connected to the medium cold end and the medium hot end of the medium circulation assembly 5 , and the driving part 6 is meshed with the transmission gear 423 .

In the embodiment of the present invention, the outside air enters the cavity 412 through the vent holes 413 on one side. Due to the non-aligned design of the vent holes 413 on both sides of the rotating housing 41, the air entering the cavity 412 is not along the Directly enter the air hole 413 on the other side along a straight line, thereby prolonging the time for the air to stay in the cavity 412, and then make the air fully contact with the surface of the annular tube 422, so that the cooling medium in the annular tube 422 The air can be fully cooled, thereby improving the heat dissipation efficiency and cooling effect.

Please refer to Fig. 1 to Fig. 13, in one 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, and the upper surface of the lower frame 12 is connected with a stopper. The water ring 17, the cooling 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, it will flow out along the inclined upper surface of the lower frame 12. In addition, the design of the water retaining ring 17 makes the present invention capable of preventing sand and dust. and rainproof features.

Please refer to FIGS. 1 to 10. In an embodiment of the present invention, the driving part 6 includes a driving part 61 and a transmission part 62, the driving part 61 includes a driving motor and a driving gear, and the transmission part 62 is a ring gear. The drive motor is connected to the drive gear through the drive shaft, and the drive gear and the transmission gear 423 are meshed with the transmission member 62. A fixed guide rail 18 is installed above the upper frame 11, and the transmission member 62 is rotatably connected to the fixed guide rail 18. Inside.

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

Please refer to Fig. 1 to Fig. 4, in one embodiment of the present invention, described radiating fan assembly 3 comprises ventilation plate 31 and radiating fan body 32, and the quantity of described radiating fan body 32 is several, and several radiating fan bodies 32 Installed on the surface of the ventilation plate 31, the ventilation plate 31 is installed in the opening 16, the heat dissipation fan body 32 can bring the heat around the lower power conversion equipment 2 upwards, and at the same time, the outside air will flow to the surroundings of the power conversion equipment 2 .

Please refer to FIG. 1 to FIG. 10 , in one embodiment of the present invention, the medium circulation assembly 5 includes a medium cooling and conveying part 51 , a medium cold end conveying main pipe 52 , a medium cold end conveying branch pipe 53 , and a medium hot end returning branch pipe 54 , the medium hot end return main pipe 55 and the circulation pipe 56, one end of the medium cold end delivery branch pipe 53 and the medium hot end return flow branch pipe 54 are inserted and connected with the two ends of the central pipe 421 respectively, and the medium cold end delivery branch pipe 53 and The other end of the medium hot end return branch pipe 54 is respectively connected to the medium cold end conveying main pipe 52 and the medium hot end return main pipe 55, and the medium cold end conveying main pipe 52 is connected to the cold end outlet of the medium cooling and conveying part 51. The medium hot end return main pipe 55 is connected to the hot end inlet of the medium cooling and conveying part 51 through a 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 frame, the mounting seat 14 is mounted below the lower frame 12, and the medium is cooled and conveyed The part 51 and the driving part 61 are installed on the top cover 15. The medium cooling and conveying part 51 includes a refrigerator and a pump body. The pressure generated by the pump body can transport the cooling liquid in the refrigerator through the medium cold end delivery main pipe 52 and the medium cold end. The conveying branch pipe 53 is transported to each central pipe 421 and annular pipe 422, and the coolant in each central pipe 421 and annular pipe 422 will enter the refrigeration system along the medium hot end return branch pipe 54, the medium hot end return main pipe 55 and the circulation pipe 56. device, and so on.

The working process of the embodiment of the present invention is as follows: when encountering strong wind and sand or rainy weather, the heat dissipation principle of the present invention: first start the driving part 61, and the driving part 61 drives the central tube 421 to rotate through the transmission part 62 and the transmission gear 423, and the rotating The central pipe 421 drives the rotating housing 41 to rotate together through the straight pipe and the draw-in slot until the rotating housing 41 seals the gap between the support column 13 and the support column 13 and stops. During operation, outside air can pass through the rotating housing 41 through the air vent 413 and blow to the surface of the power conversion device 2, thereby realizing the function of heat dissipation through air circulation. The aperture of the air vent 413 is small, and wind and sand cannot enter In the rotating housing 41, even if a small part of wind and sand enters the rotating housing 41, due to the setting of the bottom opening of the rotating housing 41, the wind and sand will fall on the upper surface of the lower frame 12 through the bottom opening under the action of gravity. The surface is an inclined surface, and the wind and sand will roll down along the slope to prevent the wind and sand from accumulating on the upper surface of the lower frame 12. When the surface temperature of the power conversion device 2 is high, the temperature sensor installed around the power conversion device 2 will automatically The temperature change is monitored, and the medium cooling and conveying part 51 is activated through the internal controller. The medium cooling and conveying part 51 conveys the cooling liquid to each central pipe 421 and the annular pipe through the medium cold end conveying main pipe 52 and the medium cold end conveying branch pipe 53 422, in this way, the temperature in the rotating housing 41 will decrease. When the air coming in through the vent hole 413 passes near the annular pipe 422, the air will be blown to the surface of the power conversion device 2 after cooling down, thereby improving In order to improve the heat dissipation efficiency, if the air contains moisture, the moisture will condense on the surface of the annular pipe 422 and the surface of the rotating shell 41, and the water droplets condensed on the surface of the rotating shell 41 will automatically flow along the water guide groove 414 to incline under the action of gravity On the upper surface of the lower frame 12, the condensed water droplets on the surface of the annular pipe 422 will drop through the opening to the upper surface of the inclined lower frame 12 under the action of gravity, and the condensed water droplets can also play a role in the falling process. Take away the effect of sand and dust particles adhering to the surface of the annular pipe 422 and the surface of the rotating shell 41;

When encountering cloudy and rainy days, when rainwater enters the inside of the rotating housing 41 through the air holes 413, since the air holes 413 on both sides of the rotating housing 41 are not aligned, the rainwater can only pass through the inner wall of the rotating housing 41 The opening at the bottom flows to the upper surface of the inclined lower frame 12, coupled with the design of the water retaining ring 17 on the upper surface of the lower frame 12, rainwater will not enter the surface of the power conversion device 2, so the present invention maintains a good heat dissipation effect, It also has the characteristics of dustproof and rainproof.

When encountering dry and sunny weather, the working principle of the present invention is to drive the rotating assembly 4 to rotate 90 degrees through the driving part 6 until the gap between the rotating housing 41 and the support column 13 is the largest. The contact area on the surface of the device 2 is maximized. At this moment, only the heat dissipation fan body 32 is required to work to effectively dissipate heat from the power conversion device 2, which has the characteristics of good heat dissipation effect and low energy consumption.

For those skilled in the art, although some embodiments and examples of the present invention have been described, 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 forms, and various omissions, substitutions, and changes can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and spirit of the invention, and are included in the invention described in the claims and its equivalent scope.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only includes an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (7)

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;

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.

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.

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