A module-integrated dynamic response heat dissipation device

Abstract

The application discloses a vehicle-mounted heat dissipation device, belongs to the technical field of engine heat dissipation, and aims at solving the technical problems of poor heat dissipation effect, large noise, high energy consumption and untimely maintenance of the vehicle-mounted heat dissipation device with large heat dissipation fans. The vehicle-mounted heat dissipation device comprises a heat dissipation unit and an air cooling unit. The heat dissipation unit comprises a heat dissipation channel. The heat dissipation channel comprises a plurality of heat dissipation rings, and the center of each heat dissipation ring is provided with a through cavity. The air cooling unit comprises a plurality of groups of fans and motors, and the fan blades can rotate towards the axial direction of the fan simultaneously. The vehicle-mounted heat dissipation device improves the utilization efficiency of the air source and optimizes the uniformity of heat dissipation. The disassembly and assembly of the fans and the motors can be conveniently, quickly and efficiently carried out, and the maintainability under the vehicle-mounted condition is improved.

Description

Technical Field

[0001] This invention belongs to the field of engine cooling technology and relates to an on-board cooling device. Background Technology

[0002] Current vehicle cooling systems typically use a large fan to air-cool the radiator. However, large fans are energy-intensive and noisy. Furthermore, the radiator core usually has multiple parallel rows of cooling channels, and the large fan's airflow is uneven, with a large airless zone in the center, failing to evenly cool the medium within the cooling channels, resulting in poor cooling performance. Additionally, when the cooling fan and motor need repair or replacement, a crane is required to disassemble the radiator before the fan and motor can be removed, making timely repair and replacement difficult in vehicle applications and reducing the system's reliability. Summary of the Invention

[0003] Based on the above analysis, the present invention aims to provide a heat dissipation device to solve the technical problems of poor heat dissipation effect, high noise, high energy consumption, and inability to be repaired in a timely manner in vehicle-mounted heat dissipation devices with large cooling fans.

[0004] The objective of this invention is mainly achieved through the following technical solutions.

[0005] The present invention provides an on-board heat dissipation device, including a heat dissipation unit and an air cooling unit; the heat dissipation unit includes a heat dissipation core, and the heat dissipation core includes a heat dissipation channel; the air cooling unit includes a fan and a motor, and the motor can drive the fan to rotate to perform air cooling on the fluid in the heat dissipation channel.

[0006] Furthermore, the air-cooled unit also includes an air guide shroud; the air guide shroud includes an air duct and a shroud body.

[0007] Furthermore, the fan casing covers the outer periphery of the fan, with the casing located between the fan casing and the heat dissipation unit.

[0008] Furthermore, the air-cooled unit includes multiple fans and motors.

[0009] Furthermore, the air guide cover is equipped with multiple air ducts, which cover the outer periphery of multiple fans respectively.

[0010] Furthermore, the enclosure is equipped with partitions to isolate the space between each air duct and the heat dissipation unit.

[0011] Furthermore, the cooling unit includes a liquid radiator for circulating and cooling the engine's coolant.

[0012] Furthermore, the cooling unit includes a gas radiator for cooling the compressed gas entering the engine.

[0013] Furthermore, the heat dissipation unit includes liquid radiators and gas radiators.

[0014] Furthermore, the two heat sinks of the heat dissipation unit are aligned along the fan axis, and the air-cooling unit can dissipate heat from both heat sinks simultaneously.

[0015] Furthermore, the heat sink also includes a cavity; the heat dissipation channel includes branch flow channels, which are two curved channels, and the cavity is circular and located between the two branch flow channels; the cavity is located in the windless area in front of the center of the fan, and the fan can be disassembled and assembled through the cavity.

[0016] Furthermore, the fan includes fan blades that can simultaneously rotate in the direction of the fan's axis to achieve folding, and the fan can be removed from the cavity.

[0017] Furthermore, the fan includes a first mounting base and a second mounting base. One end of the fan blade is provided with a bushing. The bushing is rotatably connected to the first mounting base and engages with the second mounting base. The second mounting base is detachably connected to the first mounting base. After detachment, the second mounting base can slide axially on the first mounting base, thereby driving the fan blade to unfold or fold.

[0018] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0019] 1. The vehicle cooling device of the present invention, by setting up multiple sets of fans and motors, can reduce the area of ​​the fan-free zone, and can control the speed and on / off of the motors separately, thereby improving energy efficiency and reducing unnecessary energy consumption.

[0020] 2. The vehicle-mounted heat dissipation device of the present invention, by setting a heat dissipation ring in the heat dissipation unit, enables the windless area of ​​the fan to be opposite to the passage cavity, thereby improving the utilization efficiency of the air source and optimizing the uniformity of heat dissipation; it also enables the fan to be disassembled through the passage cavity, avoiding the disassembly and relocation of the heat dissipation unit and improving maintainability under vehicle conditions.

[0021] 3. The vehicle-mounted heat dissipation device of the present invention, by setting a petal-shaped heat dissipation ring, enables the curved branch flow channels to be located in the annular air field of the fan, thereby improving the heat exchange efficiency of the heat dissipation channel 131.

[0022] 4. The vehicle cooling device of the present invention, by setting axially rotatable fan blades, enables the removal, maintenance and replacement of the fan without disassembling and moving other parts, which is convenient, fast and efficient and meets the conditions for use in vehicle conditions.

[0023] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages may become apparent from the description or be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained through the embodiments described and the accompanying drawings, which are particularly pointed out. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the heat dissipation device according to an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of the air guide cover according to an embodiment of the present invention;

[0026] Figure 3 This is a three-dimensional structural diagram of the air-cooled unit according to an embodiment of the present invention;

[0027] Figure 4 This is a cross-sectional view of the air-cooled unit according to an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the fan structure according to an embodiment of the present invention;

[0029] Figure 6 This is a schematic diagram of the structure of the first mounting base according to an embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram of the structure of the second mounting base according to an embodiment of the present invention;

[0031] Figure 8 This is a schematic diagram of the internal cross-sectional structure of the fan in the assembled state according to an embodiment of the present invention;

[0032] Figure 9 This is a schematic diagram of the internal cross-sectional structure of the fan in a disassembled state according to an embodiment of the present invention.

[0033] Figure label:

[0034] 1-Heat dissipation unit; 11-Fluid inlet; 12-Fluid outlet; 13-Heat dissipation core; 131-Heat dissipation channel; 1311-Branch flow channel; 1312-Heat dissipation ring; 1313-Through cavity; 2-Air cooling unit; 21-Fan; 211-First mounting base; 2111-Connecting shaft; 2112-Moving slot; 21121-First limiting block; 21122-Moving cavity; 212-Second mounting base; 2121-Moving plate ; 21211-First screw hole; 21212-Second screw hole; 2122-Insertion block; 21221-Second limiting block; 21222-First convex tooth; 213-Fan blade; 2131-Shaft sleeve; 21311-Second convex tooth; 21312-Third screw hole; 2132-Blade plate; 22-Motor; 23-Air guide cover; 231-Air duct; 2311-Convex ring; 232-Cover body; 3-Control unit; 4-Mounting bracket. Detailed Implementation

[0035] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0036] Example 1

[0037] This embodiment provides a vehicle-mounted heat dissipation device, such as... Figure 1 As shown, it includes a heat dissipation unit 1, an air cooling unit 2, a control unit 3, and a mounting bracket 4. The heat dissipation unit 1, the air cooling unit 2, and the control unit 3 are detachably fixed to the mounting bracket 4. The control unit 3 can control the air cooling unit 2 to perform air cooling on the heat dissipation unit 1.

[0038] The heat dissipation unit 1 is located above the air-cooling unit 2 and includes a fluid inlet 11 and a fluid outlet 12, with the fluid outlet 12 connected to the engine. When hot fluid flows into the heat dissipation unit 1 from the fluid inlet 11, the air-cooling unit 2 can perform air cooling to dissipate the hot fluid, allowing it to cool down within the heat dissipation unit 1 before flowing out from the fluid outlet 12 and into the engine. The heat dissipation unit 1 is a liquid-to-air radiator that circulates the engine's coolant, or it can be an air-to-air radiator, i.e., an intercooler, that dissipates the compressed gas entering the engine. Preferably, the heat dissipation unit 1 includes both a liquid-to-air radiator and an air-to-air radiator, with the two radiators arranged vertically aligned and each having its own fluid inlet and outlet, allowing the air-cooling unit 2 to dissipate heat from both radiators simultaneously.

[0039] like Figure 1As shown, the air-cooled unit 2 includes a fan 21, a motor 22 and an air guide shroud 23. The fan 21 is arranged in parallel with the heat dissipation unit 1. The fan 21 is fixed to the output shaft of the motor 22 by a key shaft and bolts. The motor 22 can drive the fan 21 to rotate, so as to perform air cooling on the heat dissipation unit 1 and reduce the temperature of the hot fluid inside the heat dissipation unit 1.

[0040] like Figure 2 As shown, the air guide shroud 23 includes an air duct 231 and a cover 232. The air duct 231 is located on the outer periphery of the fan 21, and the cover 232 is located between the air duct 231 and the heat dissipation unit 1. One end of the cover 232 is fixed to the heat dissipation unit 1. The air guide shroud 23 can concentrate the airflow generated by the fan 21, improve the heat dissipation efficiency of the air-cooled unit 2, and at the same time prevent the noise generated by the fan 21 from leaking outward.

[0041] Preferably, the air-cooled unit 2 in this embodiment includes multiple sets of fans 21 and motors 22. Each fan 21 is covered by a fan duct 231, making the space inside each fan duct 231 independent so that the airflow of each fan 21 does not interfere with each other. The cover 232 connects the multiple fan ducts 231 into a whole and is fixedly connected to the heat dissipation unit 1. By setting multiple sets of fans 21 and motors 22, this embodiment can reduce the size of the fans 21, thereby reducing the area of ​​the windless zone generated when using a large fan.

[0042] For example, the air-cooled unit 2 is equipped with four sets of fans 21 and motors 22, which are arranged in a square pattern. The control unit 3 can control the four sets of fans 21 and motors 22 respectively, and adjust the speed and on / off state of the motors 22 accordingly based on the temperature measured by the sensors at each fluid inlet or outlet, thereby improving energy efficiency and reducing unnecessary energy consumption.

[0043] like Figure 3 and Figure 4 As shown, the heat dissipation unit 1 in this embodiment further includes a heat dissipation core 13, which is located between the fluid inlet 11 and the fluid outlet 12. The heat dissipation core 13 includes multiple parallel heat dissipation channels 131. For example, the heat dissipation core 13 includes two heat dissipation channels 131, the two ends of which are interconnected and connected to the fluid inlet 11 and the fluid outlet 12 respectively; each heat dissipation channel 131 includes two curved branch channels 1311, which are symmetrically arranged to form a petal-shaped heat dissipation ring 1312, so that the center of the heat dissipation ring 1312 forms a circular cavity 132. Optionally, multiple heat dissipation rings 1312 can be arranged in series on each heat dissipation channel 131, and the multiple heat dissipation rings 1312 are arranged along the direction of the heat dissipation channel 131 and interconnected with each other.

[0044] Exemplarily, the centerlines of the four heat dissipation rings 1312 coincide with the centerlines of the four fans 21 respectively, so that the centers of the four fans 21 are opposite to the through cavity 132. When the fans 21 rotate to dissipate heat from the heat dissipation unit 1, the windless areas generated at the centers of the four fans 21 are all located within the four through cavities 132, while the branch flow channels 1311 are all located within the annular wind fields of the fans 21, improving the heat exchange efficiency of the heat dissipation channel 131.

[0045] The heat dissipation core 13 of this embodiment is made of a metal material with good heat conduction performance, and heat dissipation fins (not shown in the figure) are evenly distributed on the outer wall of the heat dissipation channel 131. When the hot fluid flows in the heat dissipation channel 131, it makes contact with the inner wall of the heat dissipation channel 131 and generates heat conduction. The heat dissipation core 13 conducts the heat of the hot fluid from the inner wall of the heat dissipation channel 131 to the outer wall and exchanges heat with the surrounding air to complete the heat dissipation process.

[0046] Compared with the radiators with conventional straight flow channels, this embodiment adopts the petal-shaped heat dissipation rings 1312 arranged on the heat dissipation channel 131. On the one hand, it can extend the flow path of the flow channel, and the hot fluid can fully contact the cold-side air in the flow channel for heat dissipation. According to the formula Q = CM△T, the temperature difference between the inlet and outlet of the fluid will increase, improving the heat dissipation efficiency of the device. On the other hand, since the centers of the fans 21 are opposite to the through cavities 132, there is no windless area in the flow path of the heat dissipation channel 131, so that the air volume and space can be fully utilized, making the heat dissipation more uniform. In addition, since the through cavity 132 is above the axis of the fan 21, when the fan 21 needs to be repaired, the bolt at the connection between the output shaft of the motor 22 and the fan can be directly removed with a wrench, and the fan 21 and the motor 22 can be disassembled, meeting the conditions for replacing the fan 21 or the motor 22, improving the convenience of device maintenance.

[0047] Further, as Figure 3 shown, the cover body 232 is a square frame, connected to the air duct 231 at one end and connected to the heat dissipation unit 1 by bolts at the other end. A partition 2321 is provided in the cover body 232 to isolate the spaces between each group of air ducts 231 and the heat dissipation unit 1 in the height direction of the cover body 232, so that the wind fields blown by each group of air ducts 231 to the heat dissipation unit 1 are independent of each other, and a uniform wind field is formed in the cover body 232 to perform air-cooled heat dissipation on each heat dissipation ring 1312 of the heat dissipation unit 1 one by one to achieve the effect of uniform heat dissipation. Exemplarily, the partition 2321 divides the air duct 231 into four independent spaces in a "field" shape, which are respectively opposite to the four heat dissipation rings 1312 of the heat dissipation unit 1.

[0048] Furthermore, to facilitate the removal of the fan 21 from the side of the device during maintenance, the air duct 231 and the cover 232 are detachably connected. For example, the upper edge of the air duct 231 is provided with a protruding ring 2311, which has a screw hole for detachable connection to the cover 232 via bolts. During installation, the protruding ring 2311 is located inside the cover 232. After removing the bolts, the air duct 231 can be moved upwards into the cover 232, allowing the disassembled fan 21 to be removed from the side of the device.

[0049] Example 2

[0050] The difference between the vehicle cooling device in this embodiment and that in embodiment 1 is that the fan blades 213 of the fan 21 can retract toward the center of the fan 21 so that the fan 21 can be removed from the cavity 132 during maintenance.

[0051] Specifically, such as Figure 5 As shown, the fan 21 includes a first mounting base 211, a second mounting base 212, and fan blades 213. The first mounting base 211 and the second mounting base 212 are located at the center of the fan 21. The first mounting base 211 and the second mounting base 212 are provided with coaxial keyways for matching with key shafts to fix the fan 21 to the output shaft of the motor 22. Multiple fan blades 213 are evenly arranged around the first mounting base 211 and the second mounting base 212.

[0052] like Figure 6 As shown, the first mounting base 211 includes a connecting shaft 2111 and a movable groove 2112. The connecting shaft 2111 and the movable groove 2112 are evenly arranged around the center of the first mounting base 211, and their number is the same as the number of fan blades 213. The connecting shaft 2111 is horizontally arranged on the outer periphery of the first mounting base 211 for rotatable connection with the fan blades 213. The movable groove 2112 is used to accommodate one end of the second mounting base 212. The movable groove 2112 includes a first limiting block 21121 and a movable cavity 21122. The first limiting block 21121 is horizontally opposite to the connecting shaft 2111. The outer surface of the first limiting block 21121 is a vertical plane and parallel to the connecting shaft 2111. The movable cavity 21122 is located below the first limiting block 21121.

[0053] like Figure 7As shown, the second mounting base 212 includes a mounting plate 2121 and insert blocks 2122. The mounting plate 2121 is an annular plate with the same outer diameter as the first mounting base 211. The mounting plate 2121 has a first screw hole 21211 and a second screw hole 21212. The first screw hole 21211 is used to pass through and fix the first mounting base 211, and the second screw hole 21212 is used to pass through and fix the fan 21. The insert blocks 2122 are located below the mounting plate 2121 and are vertically arranged strips. The number of insert blocks 2122 is the same as the number of movable slots 2112, and they are evenly arranged around the center of the mounting plate 2121. Figure 8 and Figure 9 As shown, the inner surface of the insert 2122 is in contact with the outer surface of the first limiting block 21121, allowing the second mounting base 212 to slide axially above the first mounting base 211. Figure 7 and Figure 9 As shown, the end of the insertion block 2122 is provided with a second limiting block 21221. The second limiting block 21221 is located in the movable cavity 21122. The first limiting block 21121 limits the maximum distance that the second mounting base 212 can move axially on the first mounting base 211 by limiting the second limiting block 21221.

[0054] like Figure 8 As shown, the fan blade 213 includes a bushing 2131 and a blade 2132. The bushing 2131 is located at one end of the fan blade 213 and is rotatably connected to the connecting shaft 2111, so that the blade 2132 can rotate in the vertical direction around the connecting shaft 2111.

[0055] Furthermore, such as Figure 7 As shown, the outer surface of the insert 2122 is provided with a plurality of first protrusions 21222, which are evenly arranged in the vertical direction. The outer surface of the bushing 2131 is provided with second protrusions 21311 that cooperate with the first protrusions 21222. When the second mounting seat 212 moves axially on the first mounting seat 211, the meshing between the first protrusions 21222 and the second protrusions 21311 can drive the fan blade 213 to rotate around the connecting shaft 2111.

[0056] Specifically, such as Figure 8 As shown, when the fan 21 is normally assembled on the motor 22, the mounting plate 2121 is attached to the upper surface of the first mounting base 211, the second mounting base 212 is fixedly connected to the first mounting base 211 by screws, the insert block 2122 is located at the bottom of the movable cavity 21122, and the meshing between the first protrusion 21222 and the second protrusion 21311 fixes the blade 2132 in a horizontal position. When the motor 22 rotates, it can blow air to the heat dissipation unit 1 to achieve air cooling.

[0057] like Figure 9As shown, when it is necessary to disassemble the fan 21, first remove the bolts on the pin connecting the output shaft of the motor 22, so that the fan 21 can be removed from the motor 22. Then, use a tool to remove the screws on the second mounting base 212 from above the cavity 132, slide the second mounting base 212 upward, and the first tooth 21222 drives the second tooth 21311 to mesh and rotate, thereby causing the blade 2132 to rotate downward around the connecting shaft 2111 and retract, so that the fan 21 can be removed as a whole from the cavity 132.

[0058] The heat dissipation device in this embodiment, by setting a rotatable and retractable fan blade 213, can complete the disassembly, repair and replacement without disassembling and moving other parts when the fan 21 or motor 22 needs to be repaired or replaced. It is convenient, fast and efficient and meets the conditions for use in vehicle conditions.

[0059] Preferred, such as Figure 8 and Figure 9 As shown, the second protruding tooth 21311 is arranged on a quarter of the cylindrical surface of the outer surface of the bushing 2131. Figure 8 As shown, when the second mounting base 212 is fixed to the first mounting base 211, the second protruding tooth 21311 is located on the lower semi-cylindrical surface of the bushing 2131; as Figure 9 As shown, when the second mounting base 212 slides upward to rotate the blade 2132 to a vertically retracted state, the second protruding tooth 21311 is located on the upper semi-cylindrical surface of the bushing 2131. The second protruding tooth 21311 is arranged on a quarter of the cylindrical surface of the outer surface of the bushing 2131, which can save the space occupied by the second protruding tooth 21311 and also limit the rotation angle of the fan blade 213.

[0060] Preferably, the outer surface of the bushing 2131 is provided with a third screw hole 21312. The third screw hole 21312 is perpendicular to the rotation plane of the blade 2132 when it is working. When the second mounting base 212 is fixed to the first mounting base 211, the third screw hole 21312 is connected to the second screw hole 21212 to facilitate the use of screws to further lock and fix the second mounting base 212 and the fan blade 213, so that the fan blade 213 can be more stable when rotating.

[0061] In this embodiment, since the fan 21 can be removed from the cavity 132 and the air guide cover 23 is integrally formed, the air duct 231 and the cover 232 do not need to be fixedly connected by bolts, which improves the reliability of the heat dissipation device and reduces the noise leaking from the connection gap.

[0062] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A vehicle-mounted heat dissipation device, characterized in that, It includes a heat dissipation unit (1) and an air-cooling unit (2); The heat dissipation unit (1) includes a heat dissipation core (13), and the heat dissipation core (13) includes a heat dissipation channel (131); The air-cooling unit (2) includes a fan (21) and a motor (22). The motor (22) can drive the fan (21) to rotate and perform air-cooling heat dissipation on the fluid in the heat dissipation channel (131).

2. The vehicle-mounted heat dissipation device according to claim 1, characterized in that, The air-cooling unit (2) also includes an air guide shroud (23); the air guide shroud (23) includes an air duct (231) and a shroud body (232).

3. The vehicle-mounted heat dissipation device according to claim 2, characterized in that, The air duct (231) covers the outer periphery of the fan (21), and the cover (232) is located between the air duct (231) and the heat dissipation unit (1).

4. The vehicle-mounted heat dissipation device according to claim 3, characterized in that, The air-cooled unit (2) includes multiple sets of the fans (21) and the motor (22).

5. The vehicle-mounted heat dissipation device according to claim 4, characterized in that, The air guide cover (23) is provided with a plurality of air ducts (231), and the plurality of air ducts (231) cover the outer periphery of the plurality of fans (21).

6. The vehicle-mounted heat dissipation device according to claim 5, characterized in that, The cover (232) is provided with a partition (2321) to isolate the space between each of the air ducts (231) and the heat dissipation unit (1).

7. The vehicle-mounted cooling device according to any one of claims 2 to 6, characterized in that, The heat dissipation unit (1) includes a liquid radiator for circulating and dissipating the engine's coolant.

8. The vehicle-mounted cooling device according to any one of claims 2 to 6, characterized in that, The heat dissipation unit (1) includes a gas radiator for dissipating heat from the compressed gas entering the engine.

9. The vehicle-mounted cooling device according to any one of claims 2 to 6, characterized in that, The heat dissipation unit (1) includes the liquid radiator and the gas radiator.

10. The vehicle-mounted heat dissipation device according to claim 9, characterized in that, The two radiators of the heat dissipation unit (1) are aligned along the axial direction of the fan (21), and the air-cooling unit (2) can dissipate heat from both radiators simultaneously.

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