CN214046465U

CN214046465U - Automatically controlled box heat abstractor

Info

Publication number: CN214046465U
Application number: CN202022849955.8U
Authority: CN
Inventors: 刘婵
Original assignee: Nanjing Vocational University of Industry Technology NUIT
Current assignee: Nanjing Vocational University of Industry Technology NUIT
Priority date: 2020-12-01
Filing date: 2020-12-01
Publication date: 2021-08-24
Anticipated expiration: 2030-12-01

Abstract

The utility model discloses an automatically controlled box heat abstractor, including cooling working medium inflow tube, cooling working medium outflow tube, cooling working medium circulating pipe, circulating pump and heating panel, cooling working medium circulating pipe is established between cooling working medium inflow tube and cooling working medium outflow tube, be equipped with a plurality of groups of runners in the heating panel, every group runner includes runner entry, runner export and miniflow way, the miniflow way is established between runner entry and runner export, and runner entry and runner export opposite position in the runner between adjacent set up, cooling working medium inflow tube links to each other with the runner entry respectively, cooling working medium outflow tube links to each other with the runner export respectively, the circulating pump is equipped with in cooling working medium inflow tube or the cooling working medium outflow tube. The utility model discloses can make whole PCB board realize the even cooling heat dissipation, the phenomenon that the entry section temperature that has avoided traditional cooling plate to appear is low, the export section temperature is low can prevent to warp and the component failure scheduling problem because of the inhomogeneous face that brings of temperature.

Description

Automatically controlled box heat abstractor

Technical Field

The utility model belongs to the technical field of the heat dissipation and specifically relates to an automatically controlled box microchannel heat abstractor for among air condensing units.

Background

With the development of economic society, people increasingly demand the automation and intelligence level of household appliances. The air conditioner is used as an indispensable electric appliance in daily life, and the control method of the air conditioner is increasingly automated and intelligentized, so that the requirement on an air conditioner controller is also increasingly high.

An electric control box is arranged in the outdoor unit of the variable frequency air conditioner, and the controller is installed in the electric control box. The more and more complex control method leads the heat productivity of the controller to be more and more when the air conditioner runs; and the electric elements on the PCB board in the controller are very sensitive, if the PCB board can not be cooled and radiated timely and efficiently, the electric elements can be out of order or even burnt out when the temperature is too high. The existing electronic control element heat dissipation devices are mostly cooled by air cooling or by leading out a refrigerant from an air conditioning pipeline. These cooling methods have low heat dissipation efficiency, cannot rapidly dissipate a large amount of heat, and the heat dissipation device has a complex structure and a large volume, and occupies much space inside the outdoor unit. Therefore, it is desired to solve the above problems.

Publication No. CN211903094U discloses an outdoor unit of air conditioner, wherein the circuit board is cooled by a common heat pipe, and although the traditional air cooling is changed and the heat is dissipated by the heat pipe, the heat exchange efficiency is not high, the heat is not uniform for a long time, and the temperature at the inlet end of the heat pipe is low, and the temperature at the outlet end of the heat pipe is high, which leads to the deformation and damage of the electric heating plate.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims at providing an automatically controlled box heat abstractor, the electric elements in its automatically controlled box dispels the heat through microchannel heat abstractor, and its cooling efficiency is high, and shared space is little, simple structure, and required extra heat dissipation energy consumption is few, and economic nature and practicality are strong.

The technical scheme is as follows: for the purpose above the realization, an automatically controlled box heat abstractor, including cooling working medium inflow pipe, cooling working medium outflow pipe, cooling working medium circulating pipe, circulating pump and heating panel, cooling working medium circulating pipe is established between cooling working medium inflow pipe and cooling working medium outflow pipe, be equipped with a plurality of groups of runners in the heating panel, every group runner includes runner entry, runner export and miniflow way, the miniflow way is established between runner entry and runner export, and runner entry and runner export opposite position in the runner between adjacent set up, cooling working medium inflow pipe links to each other with the runner entry respectively, cooling working medium outflow pipe links to each other with the runner export respectively, the circulating pump is equipped with in cooling working medium inflow pipe or the cooling working medium outflow pipe.

Preferably, the heat dissipation plate comprises an upper shell and a lower shell connected with the upper shell, an inlet flow channel groove, an outlet flow channel groove and a micro flow channel groove are formed in the lower shell, the upper shell is provided with a groove identical to that of the lower shell, the groove and the lower shell are matched to form a closed flow channel, and according to different manufacturing processes, a pipeline can be arranged in the groove to serve as the flow channel and the groove can also serve as the corresponding flow channel.

Preferably, the microchannel comprises a group of branch channels which are respectively communicated with the channel inlet and the channel outlet, and an expansion ball is arranged between the branch channels and the channel inlet and the channel outlet.

Preferably, the pipe diameters of the flow channel inlet and the flow channel outlet are not less than the sum of the pipe diameters of the branch channels.

Preferably, the cooling working medium circulating pipe is in an S-shaped distribution design, and a group of radiating fins are arranged on the cooling working medium circulating pipe.

Preferably, the upper housing is provided with a micro-fin structure in the groove gap.

Preferably, the fins penetrate through the upper shell and penetrate out of the top surface of the upper shell.

Further, the heat dissipation device is arranged inside the shell of the electric control box of the outdoor unit of the air conditioner.

Has the advantages that: compared with the prior art, the utility model has the following apparent advantage:

(1) the utility model provides a heat abstractor adopts many microchannel structure's microchannel structure, and the heat exchange area that increases greatly, the heat dissipation capacity is big, improves cooling efficiency greatly, can effectively reduce the temperature of PCB board in the automatically controlled box rapidly, protects electrical element's normal operating.

(2) The utility model discloses in the opposite design of adjacent microchannel access & exit be every adjacent two sets of miniflow way promptly, the flow opposite direction of cooling working medium business turn over, this design can make whole PCB board realize the even cooling heat dissipation, the phenomenon that the entry section temperature that has avoided traditional cooling plate to appear is low, the export section temperature is low can prevent to warp and the component failure scheduling problem because of the face that the temperature is inhomogeneous brings.

(3) The heat dissipation plate in the utility model adopts a micro-channel structure, has small overall size, can be directly installed in an electric control box, does not occupy the space in the shell of the outdoor unit, and makes the internal structure of the outdoor unit more reasonable; the heat dissipation device is arranged in the electric control box, is more fully contacted with the heating element, and further improves the heat dissipation efficiency; and the heat dissipation device has small volume, less materials and less required supporting equipment, so the cost investment is lower and the economic applicability is good.

Drawings

Fig. 1 is a schematic view of the overall structure of the heat dissipation device of the present invention;

FIG. 2 is a schematic view of a heat sink structure;

FIG. 3 is a schematic view of a micro flow channel structure;

FIG. 4 is a schematic view of the inside of a microchannel in an embodiment of the microchannel;

FIG. 5 is a schematic view of the structure of a fin in a microchannel.

Wherein: 1-a heat sink; 11-an upper shell; 13-a lower shell; 12-micro flow channel; 14-an inlet section; 15-a heat dissipation section; 16-an outlet section; 17-an inflatable balloon; 18-a micro fin; 19-upper shell microchannel; 2-a cooling working medium inflow pipe; 3-a circulating pump; 4-a cooling working medium outflow pipe; 5-working medium circulating pipe; 6-parallel radiating fins.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1, the microchannel heat sink for an outdoor unit of an air conditioner includes a heat sink body 1, a cooling medium inflow pipe 2, a micro circulation pump 3, a cooling medium outflow pipe 4, and a medium circulation pipe 5. The cooling working medium inflow pipe 2 is provided with a micro circulating pump 3. The cooling working medium inflow pipe and the cooling working medium outflow pipe 4 of the cooling working medium 2 are communicated through a working medium circulating pipe 5. The working medium circulating pipe 5 is bent into an S shape and is sleeved with a plurality of parallel fins 6; the working medium circulating pipe 5 is fixedly arranged at an air outlet of an air conditioner external unit.

As shown in fig. 2, the heat sink main body 1 includes an upper case 11, a lower case 13, and a micro flow channel 12; the lower shell 13 is provided with a plurality of grooves to form micro channels 12, and the upper shell 11 is provided with the same upper shell micro channels 19; the cooling medium flows in the microchannels 12. The multiple groups of micro-channels 12 are arranged on the lower shell 13 in parallel, the inlet section 14 of each group of micro-channels 13 is communicated with the cooling working medium inflow pipe 2, and the outlet section 16 of each micro-channel is connected with the cooling working medium outflow pipe 4.

As shown in fig. 3, the microchannel 12 includes an inlet section 14, a heat dissipating section 15, and an outlet section 16. When entering the heat dissipation section 15 from the inlet section 14, the micro-channels are dispersed into a plurality of branch channels from one main channel, and the branch channels are parallel to each other; when the heat dissipation section 15 reaches the outlet section 16, the branch channels are converged into a main channel, and the pipe diameters of the flow channel inlet of the inlet section 14 and the flow channel outlet of the outlet section 16 are not less than the sum of the pipe diameters of the heat dissipation section 15. The multi-micro-channel structure is adopted, the heat dissipation capacity is large, the cooling efficiency is high, the temperature of the PCB in the electric control box can be effectively and rapidly reduced, and the normal operation of the electric elements is protected. Furthermore, the inlet sections 14 and outlet sections 16 of the microchannels are alternately distributed so that the flow direction of the cooling medium is opposite in each two adjacent sets of microchannels. Such flow direction setting mode can make whole PCB board realize even cooling heat dissipation, has avoided the phenomenon that the entry section temperature that traditional cooling plate appears is low, the export section temperature is low, can prevent to warp and the component scheduling problem because of the face that the inhomogeneous brings of temperature.

As shown in fig. 4, an expansion ball 17 is disposed between the branch channel in the micro channel 12 and the channel inlet of the inlet section and the channel outlet of the outlet section, and the expansion ball 17 is utilized to increase the space at the connection, so that the inflow and outflow working mediums are buffered and can relatively uniformly enter the channel of each heat dissipation section 15.

Referring to fig. 5, the upper housing 11 covers the lower housing 12, and grooves 19 are also formed at corresponding positions on the upper housing 11, and are matched with the grooves 19 in the lower housing 12 to form a closed channel for flowing the cooling medium. The upper housing 11 is provided with a micro fin structure in the gap of its groove 19. The fins 18 are made of aluminum. The fins 18 extend through the upper housing and out from the top surface of the upper housing 11. The additional fin 18 structure of establishing can further strengthen the radiating effect, improves cooling efficiency.

The whole micro-channel heat dissipation device is compact in structure, small in size, convenient to install and high in practicability and is installed inside the shell of the electric control box of the outdoor unit of the air conditioner.

The present invention is not limited to the specific technical solutions described in the above embodiments, and other embodiments can be provided in addition to the above embodiments. It should be understood by those skilled in the art that any modifications, equivalent substitutions, improvements and the like that are made within the spirit and principle of the present invention are within the scope of the present invention.

Claims

1. The utility model provides an automatically controlled box heat abstractor which characterized in that: including cooling working medium inflow pipe, cooling working medium outflow pipe, cooling working medium circulating pipe, circulating pump and heating panel, the cooling working medium circulating pipe is established between cooling working medium inflow pipe and cooling working medium outflow pipe, be equipped with a plurality of groups of runners in the heating panel, every group runner includes runner entry, runner export and miniflow way, the miniflow way is established between runner entry and runner export, and the runner entry and the opposite position of runner export in the runner between adjacent set up, cooling working medium inflow pipe links to each other with the runner entry respectively, cooling working medium outflow pipe links to each other with the runner export respectively, the circulating pump is equipped with in cooling working medium inflow pipe or the cooling working medium outflow pipe.

2. The heat dissipation device for an electronic control box according to claim 1, wherein: the heating panel includes last casing and the lower casing that links to each other with last casing, be equipped with entry runner slot and export runner slot in the lower casing to and the microchannel slot.

3. The heat dissipation device for an electronic control box according to claim 2, wherein: the upper shell is provided with a groove which is the same as that of the lower shell, and the groove is matched with the lower shell to form a closed flow passage.

4. The heat dissipation device for an electronic control box according to claim 3, wherein: the micro flow channel comprises a group of branch channels which are respectively communicated with the flow channel inlet and the flow channel outlet, and an expansion ball is arranged between the branch channels and the flow channel inlet and the flow channel outlet.

5. The heat dissipation device for an electronic control box according to claim 4, wherein: the pipe diameters of the flow channel inlet and the flow channel outlet are not less than the sum of the pipe diameters of the branch channels.

6. The heat dissipation device for an electronic control box according to claim 2, wherein: the cooling working medium circulating pipe is in an S-shaped distribution design.

7. The heat dissipation device for an electronic control box according to claim 6, wherein: and a group of radiating fins are arranged on the cooling working medium circulating pipe.

8. The heat dissipation device for an electronic control box according to claim 3, wherein: the upper shell is provided with a micro fin structure in the groove gap.

9. The heat dissipation device for an electronic control box according to claim 8, wherein: the fin runs through the upper shell and penetrates out of the top surface of the upper shell.

10. The heat dissipation device for an electronic control box according to claim 1, wherein: the heat dissipation device is arranged inside the shell of the electric control box of the outdoor unit of the air conditioner.