Double-cooling heat dissipation structure of electrical controller

Abstract

The utility model relates to the technical field of controllers, in particular to a double-cooling heat dissipation structure of an electrical controller, which comprises a controller shell. First cooling fans are mounted on the front sides of the air inlet holes; a water-cooling heat dissipation part is mounted at the mounting groove; on one hand, the first heat dissipation fan blows wind power, heat on a circuit board and other structures in the controller can be taken away under the blowing of the wind power, and therefore the heat dissipation effect on the interior of the controller is achieved; on the other hand, the circuit board in the controller is installed on the heat conducting plate, heat of the circuit board is conducted to the heat conducting plate and taken away by the cooling medium flowing in the connecting groove, and heat dissipation can be continuously conducted on the circuit board through circulating flowing of the cooling medium; according to the design, the heat dissipation effect of the electrical controller is improved through a dual heat dissipation mode of wind power and liquid cooling, the internal temperature of the controller can be rapidly and effectively reduced to a safe range, and stable operation and long service life of the controller are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of controllers, in particular to a double-cooling heat dissipation structure of an electrical controller. Background Art

[0002] An electrical controller is a master device that changes the wiring of the main circuit or control circuit and changes the resistance value in the circuit in accordance with a predetermined sequence to control the starting, speed regulation, braking, and reverse of a motor. It consists of parts such as a program counter, instruction register, instruction decoder, timing generator, and operation controller. It is the "decision-making body" that issues commands and is responsible for coordinating and directing the operation of the entire computer system or electrical system. During the working process of the electrical controller, heat is generated, which is mainly caused by the power consumption and energy conversion of its internal electronic components. Therefore, ensuring good heat dissipation of the electrical controller is beneficial to ensuring the normal use of the electrical controller.

[0003] In order to ensure effective heat dissipation inside the electrical controller, a cooling fan is often installed inside the controller. Under the action of the cooling fan, the heat on the internal circuit board and other structures of the electrical controller can be blown to the outside through the heat dissipation slots on the outer shell, so as to ensure the stable operation of the internal circuit board and other structures of the electrical controller. However, in the situation where the electrical controller continuously operates at a high efficiency, a large amount of heat will quickly accumulate inside it, and the accumulation speed of this heat often exceeds the heat dissipation capacity provided by a conventional fan. Therefore, simply relying on the set fan for heat dissipation is difficult to quickly and effectively reduce the internal temperature of the controller to the safe range, which poses a potential threat to the stable operation and long-term life of the controller. In view of this, we propose a double-cooling heat dissipation structure of an electrical controller. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems in the related technologies to some extent. For this reason, an object of the utility model is to propose a double-cooling heat dissipation structure of an electrical controller, which improves the heat dissipation effect of the electrical controller through the dual heat dissipation methods of wind force and liquid cooling, is conducive to quickly and effectively reducing the internal temperature of the controller to the safe range, and is conducive to the stable operation and long-term life of the controller.

[0005] To achieve the above object, the utility model provides the following technical solutions:

[0006] The double-cooling heat dissipation structure of an electrical controller includes a controller housing. The front end face of the controller housing is provided with heat dissipation slots, and the rear end face of the controller housing is provided with two air intake holes. A first cooling fan is installed on the front side of each air intake hole. An installation slot is opened at the bottom of the controller housing, and two fixing blocks are fixed at both ends of the bottom of the controller housing. Connecting bolts are threadedly connected to the fixing blocks. A hollow protective cover is further fixed at the bottom end of the controller housing, and a plurality of exhaust slots are opened on the front and rear walls of the protective cover.

[0007] A water-cooled heat dissipation part is installed at the installation groove. The water-cooled heat dissipation part includes a mounting plate located at the installation groove. Side plates are fixed at both ends of the mounting plate. Connecting holes are formed at both ends of the side plates, and the ends of connecting bolts are inserted into the connecting holes. A heat conducting plate for dissipating heat from the circuit board is installed at the top of the side plate. Rectangular grooves are formed at both sides inside the heat conducting plate. Groove bodies are formed at one ends of the rectangular grooves. A plurality of connecting grooves are formed between the two groove bodies. Connecting heads communicating with the rectangular grooves are installed on both side walls of the heat conducting plate. A return pipe and a drain pipe are respectively installed at the connecting heads at the front and rear sides.

[0008] A micro water pump is installed at the bottom of the mounting plate. The end of the drain pipe is communicated with the liquid inlet of the micro water pump. A connecting pipe is installed at the water outlet of the micro water pump. A fixing frame is further fixed at the front side of the bottom of the mounting plate. Hollow shells are fixed on the outer walls of both sides of the fixing frame. A plurality of heat dissipation pipes are installed between the two shells. A plurality of heat dissipation fins are further fixed in the bottom opening of the fixing frame, and the heat dissipation pipes pass through the heat dissipation fins. The front end of the connecting pipe is communicated with the shell at the rear side, and the rear end of the return pipe is communicated with the shell at the front side. Two second heat dissipation fans for dissipating heat from the heat dissipation pipes are further fixed at the bottom of the mounting plate, and the second heat dissipation fans are located in the opening of the fixing frame.

[0009] In addition, the double-cooling heat dissipation structure of the electrical controller proposed according to the above application may further have the following additional technical features:

[0010] Specifically, the cross-sectional shape of the mounting plate is rectangular, and the size of the mounting plate is adapted to the size of the installation groove.

[0011] Specifically, the mounting plate and the side plates are of an integrally formed structure, and the mounting plate is perpendicular to the side plates.

[0012] Specifically, the plurality of connecting grooves are linearly and equally spaced, and the overall shape of the connecting grooves is wavy.

[0013] Specifically, the cross-sectional shape of the heat conducting plate is rectangular, and mounting holes for installing the circuit board are formed at the four corners of the top of the heat conducting plate.

[0014] Specifically, the plurality of heat dissipation fins are linearly and equally spaced, and the heat dissipation fins are made of alloy aluminum.

[0015] Specifically, the cross-sectional shape of the fixing frame is in a square shape, and the fixing frame is fixedly connected to the bottom of the mounting plate by bolts.

[0016] Specifically, two limiting blocks are fixed on the outer walls of the side plates, and the limiting blocks abut against the bottom surface of the controller housing.

[0017] Compared with the prior art, the beneficial effects of the present utility model:

[0018] By providing the first cooling fan and the water-cooling heat dissipation part: on the one hand, the first cooling fan blows wind, and under the blowing of the wind, the heat on structures such as the internal circuit board of the controller can be taken away, thus playing a role in dissipating heat from the inside of the controller; on the other hand, the internal circuit board of the controller is installed on the heat conduction plate, the heat of the circuit board is conducted to the heat conduction plate, and is taken away by the cooling medium flowing in the connecting groove. Through the circulating flow of the cooling medium, the circuit board can be continuously cooled; this design improves the heat dissipation effect of the electrical controller through the dual heat dissipation methods of wind force and liquid cooling, which is conducive to quickly and effectively reducing the internal temperature of the controller to the safe range, and is conducive to the stable operation and long-term life of the controller. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 is a cross-sectional view of the overall structure of the present utility model;

[0021] Figure 3 is a schematic diagram of the structure of the controller housing of the present utility model;

[0022] Figure 4 is one of the schematic diagrams of the structure of the water-cooling heat dissipation part of the present utility model;

[0023] Figure 5 is the second schematic diagram of the structure of the water-cooling heat dissipation part of the present utility model;

[0024] Figure 6 is a cross-sectional view of the structure of the heat conduction plate of the present utility model;

[0025] Figure 7 is a schematic diagram of the structure of the mounting plate of the present utility model;

[0026] Figure 8 is a schematic diagram of the structure of the frame of the present utility model;

[0027] In the figure:

[0028] 1. Controller housing; 10. Heat dissipation groove; 11. Air inlet hole; 12. Filter net; 13. First cooling fan; 14. Protective cover; 140. Exhaust groove; 15. Installation groove; 16. Fixed block; 17. Connecting bolt;

[0029] 2. Water-cooled heat dissipation part; 20. Mounting plate; 21. Side plate; 210. Limiting block; 211. Connecting hole; 22. Heat conduction plate; 221. Rectangular groove; 222. Groove body; 223. Connecting groove; 224. Connecting head; 23. Micro water pump; 24. Drain pipe; 25. Connecting pipe; 26. Return pipe; 27. Fixed frame; 270. Housing; 271. Heat dissipation pipe; 272. Heat dissipation fins; 28. Second heat dissipation fan. Detailed implementation mode

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] This embodiment provides a technical solution:

[0032] Please refer to Figures 1-8As shown in the figure, the double-cooling heat dissipation structure of the electrical controller includes a controller housing 1. A heat dissipation groove 10 is provided on the front end face of the controller housing 1, and two air intake holes 11 are provided on the rear end face of the controller housing 1. A first heat dissipation fan 13 is installed on the front side of each air intake hole 11; an installation groove 15 is provided on the bottom of the controller housing 1, and two fixing blocks 16 are fixed at both ends of the bottom of the controller housing 1. Connecting bolts 17 are threadedly connected to the fixing blocks 16; a hollow protective cover 14 is further fixed at the bottom end of the controller housing 1, and a plurality of exhaust grooves 140 are provided on the front and rear walls of the protective cover 14; a water-cooling heat dissipation part 2 is installed at the installation groove 15. The water-cooling heat dissipation part 2 includes a mounting plate 20 located at the installation groove 15. Side plates 21 are fixed at both ends of the mounting plate 20. Connecting holes 211 are provided at both ends of the side plates 21, and the ends of the connecting bolts 17 are inserted into the connecting holes 211; a heat conduction plate 22 for dissipating heat from the circuit board is installed on the top of the side plate 21. Rectangular grooves 221 are provided on both sides inside the heat conduction plate 22. Grooves 222 are provided at one end of each rectangular groove 221, and a plurality of connecting grooves 223 are provided between the two grooves 222. Connecting heads 224 communicating with the rectangular grooves 221 are installed on both side walls of the heat conduction plate 22; a return pipe 26 and a drain pipe 24 are respectively installed at the connecting heads 224 on the front and rear sides; a micro water pump 23 is installed at the bottom of the mounting plate 20. The end of the drain pipe 24 is communicated with the liquid inlet of the micro water pump 23, and a connecting pipe 25 is installed at the water outlet of the micro water pump 23; a fixing frame 27 is further fixed at the front side of the bottom of the mounting plate 20. Hollow shells 270 are fixed on the outer walls of both sides of the fixing frame 27, and a plurality of heat dissipation pipes 271 are installed between the two shells 270. A plurality of heat dissipation fins 272 are further fixed in the bottom opening of the fixing frame 27, and the heat dissipation pipes 271 pass through the heat dissipation fins 272; the front end of the connecting pipe 25 is communicated with the shell 270 at the rear side, and the rear end of the return pipe 26 is communicated with the shell 270 at the front side; two second heat dissipation fans 28 for dissipating heat from the heat dissipation pipes 271 are further fixed at the bottom of the mounting plate 20, and the second heat dissipation fans 28 are located in the opening of the fixing frame 27.

[0033] In this embodiment, the cross-sectional shape of the mounting plate 20 is rectangular, and the size of the mounting plate 20 is adapted to the size of the installation groove 15. This design is conducive to fitting and installing the mounting plate 20 in the installation groove 15, ensuring the installation reliability of the mounting plate 20.

[0034] In this embodiment, the mounting plate 20 and the side plates 21 are of an integrally formed structure, and the mounting plate 20 is perpendicular to the side plates 21. The integrally formed mounting plate 20 and side plates 21 have better connection strength, ensuring the connection stability of the mounting plate 20 and the side plates 21.

[0035] In this embodiment, multiple connecting grooves 223 are linearly and equally spaced, and the overall shape of the connecting grooves 223 is wavy. The arrangement of the multiple connecting grooves 223 facilitates the cooling medium to better carry away the heat of the heat conduction plate 22, and the wavy design increases the travel distance of the cooling medium, which is conducive to the cooling medium to better adsorb the heat of the heat conduction plate 22.

[0036] In this embodiment, the cross-sectional shape of the heat conduction plate 22 is rectangular, and mounting holes 220 for mounting a circuit board are provided at the four corners of the top of the heat conduction plate 22. The rectangular shape facilitates the installation of the circuit board on the top of the heat conduction plate 22, and the mounting holes 220 facilitate the passing of bolts to fix the circuit board.

[0037] In this embodiment, multiple heat dissipation fins 272 are linearly and equally spaced, and the heat dissipation fins 272 are made of alloy aluminum. The heat dissipation fins 272 made of aluminum alloy have the advantage of good heat conduction effect, which is conducive to the heat dissipation fins 272 transferring the heat on the heat dissipation pipe 271 to dissipate heat from the cooling medium.

[0038] In this embodiment, the cross-sectional shape of the fixing frame 27 is in a square shape, and the fixing frame 27 is fixedly connected to the bottom of the mounting plate 20 by bolts. The square design facilitates the installation of structures such as the heat dissipation pipe 271 and the heat dissipation fins 272.

[0039] In this embodiment, two limiting blocks 210 are fixedly provided on the outer walls of the side plates 21, and the limiting blocks 210 abut against the bottom surface of the controller housing 1. The limiting blocks 210 play a role in limiting the mounting plate 20, which is conducive to the matching installation of the mounting plate 20 and the mounting groove 15.

[0040] It should be added that in this embodiment, a hollowed-out filter screen 12 is fixedly connected to the intake holes 11 by bolts. When external air enters the intake holes 11, under the action of the filter screen 12, impurities in the air flow can be intercepted and filtered, preventing impurities from entering the inside of the controller housing 1 and playing a protective role for structures such as the circuit board inside the controller housing 1.

[0041] During specific use, the user first turns on the power supplies of the first heat dissipation fan 13, the second heat dissipation fan 28, and the micro water pump 23. The first heat dissipation fan 13, the second heat dissipation fan 28, and the micro water pump 23 start to work. The first heat dissipation fan 13 blows wind, and when the wind passes through structures such as the circuit board inside the controller housing 1, it takes away heat and is discharged to the outside through the heat dissipation slots 10. At the same time, the micro water pump 23 drives the cooling medium to flow. When the cooling medium flows in the multiple connecting slots 223, the heat of the circuit board is adsorbed by the heat conducting plate 22, and the cooling medium simultaneously absorbs the heat on the heat conducting plate 22. After absorbing the heat, the cooling medium enters the connecting pipe 25 and the rear housing 270 through the drain pipe 24 and the micro water pump 23. At the same time, the cooling medium enters the multiple heat dissipation pipes 271, and the heat of the cooling medium is transferred to the heat dissipation fins 272 through the heat dissipation pipes 271. At the same time, the second heat dissipation fan 28 blows wind and dissipates heat from the heat dissipation pipes 271 and the heat dissipation fins 272. The heat of the cooling medium in the heat dissipation pipes 271 is thus reduced, and the cooled cooling medium then flows back into the connecting slots 223 through the return pipe 26. In this way, by repeating the cycle, the circuit board inside the controller housing 1 can be continuously cooled.

[0042] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. Dual-cooling heat dissipation structure of an electrical controller, including a controller housing (1), characterized in that: The front end face of the controller housing (1) is provided with heat dissipation grooves (10), the rear end face of the controller housing (1) is provided with two air inlet holes (11), and a first heat dissipation fan (13) is installed on the front side of each air inlet hole (11); the bottom of the controller housing (1) is provided with an installation groove (15), and two fixing blocks (16) are fixed at both ends of the bottom of the controller housing (1), and a connecting bolt (17) is threadedly connected to each fixing block (16); a hollow protective cover (14) is further fixed at the bottom end of the controller housing (1), and a plurality of exhaust grooves (140) are opened on the front and rear walls of the protective cover (14). A water-cooled heat dissipation part (2) is installed at the installation groove (15). The water-cooled heat dissipation part (2) includes a mounting plate (20) located at the installation groove (15). Side plates (21) are fixed at both ends of the mounting plate (20). Connecting holes (211) are opened at both ends of the side plates (21), and the end of the connecting bolt (17) is inserted into the connecting hole (211); a heat conducting plate (22) for dissipating heat from the circuit board is installed on the top of the side plate (21). Rectangular grooves (221) are opened at both sides inside the heat conducting plate (22). A groove body (222) is opened at one end of each rectangular groove (221), and a plurality of connecting grooves (223) are opened between the two groove bodies (222). Connecting heads (224) communicating with the rectangular grooves (221) are installed on both side walls of the heat conducting plate (22); a return pipe (26) and a liquid discharge pipe (24) are respectively installed at the front and rear connecting heads (224). A micro water pump (23) is installed at the bottom of the mounting plate (20). The end of the liquid discharge pipe (24) is communicated with the liquid inlet of the micro water pump (23), and a connecting pipe (25) is installed at the liquid outlet of the micro water pump (23); a fixing frame (27) is further fixed at the front side of the bottom of the mounting plate (20). Hollow shells (270) are fixed on the outer walls of both sides of the fixing frame (27), and a plurality of heat dissipation pipes (271) are installed between the two shells (270). A plurality of heat dissipation fins (272) are further fixed in the bottom opening of the fixing frame (27), and the heat dissipation pipes (271) pass through the heat dissipation fins (272); the front end of the connecting pipe (25) is communicated with the shell (270) located at the rear side, and the rear end of the return pipe (26) is communicated with the shell (270) located at the front side; two second heat dissipation fans (28) for dissipating heat from the heat dissipation pipes (271) are further fixed at the bottom of the mounting plate (20), and the second heat dissipation fans (28) are located in the opening of the fixing frame (27).

2. The dual-cooling heat dissipation structure of the electrical controller according to claim 1, wherein: The cross-sectional shape of the mounting plate (20) is rectangular, and the size of the mounting plate (20) is adapted to the size of the installation groove (15).

3. The dual-cooling heat dissipation structure of the electrical controller according to claim 1, wherein: The mounting plate (20) and the side plates (21) are of an integrally formed structure, and the mounting plate (20) is perpendicular to the side plates (21).

4. The dual-cooling heat dissipation structure of the electrical controller according to claim 1, characterized in that: The plurality of connecting grooves (223) are linearly and equally spaced, and the overall shape of the connecting grooves (223) is wavy.

5. The dual-cooling heat dissipation structure of the electrical controller according to claim 1, wherein: The cross-sectional shape of the heat conducting plate (22) is rectangular, and mounting holes (220) for installing a circuit board are opened at the four corners of the top of the heat conducting plate (22).

6. The dual-cooling heat dissipation structure of the electrical controller according to claim 1, characterized in that: A plurality of the heat dissipation fins (272) are linearly and equally spaced, and the heat dissipation fins (272) are made of alloy aluminum.

7. The dual-cooling heat dissipation structure of the electrical controller according to claim 1, wherein: The cross-sectional shape of the fixing frame (27) is in a rectangular shape, and the fixing frame (27) is fixedly connected to the bottom of the mounting plate (20) by bolts.

8. The dual-cooling heat dissipation structure of the electrical controller according to claim 1, characterized in that: Two limiting blocks (210) are fixedly arranged on the outer walls of the side plates (21), and the limiting blocks (210) are in abutment with the bottom surface of the controller housing (1).

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