Engine cooling device

Abstract

The invention relates to the technical field of automobile engine cooling, in particular to an engine cooling device which comprises a heat dissipation shell and a cooling assembly. A liquid inlet is formed in the top wall of the heat dissipation shell, a liquid outlet is formed in the bottom wall of the heat dissipation shell, the liquid inlet communicates with a liquid inlet pipe, the liquid outlet communicates with a liquid outlet pipe, the end, close to the heat dissipation shell, of the liquid inlet pipe communicates with the end, close to the heat dissipation shell, of the liquid outlet pipe through a cooling pipe, and a plurality of heat dissipation fins distributed at intervals in the first direction are arranged in the heat dissipation shell. A plurality of through holes are formed in one side of the heat dissipation shell in a penetrating mode in the second direction, and the second direction is perpendicular to the first direction; the cooling assembly comprises a fan unit, the fan unit is located on the side, close to the through hole, of the heat dissipation shell, and the fan unit is slidably connected to the heat dissipation shell in the first direction so as to adjust the distance between the fan unit and the heat dissipation shell. The position of the fan can be adjusted according to the actual heat dissipation condition, so that the heat dissipation effect is improved.

Description

Technical Field

[0001] This application relates to the technical field of automotive engine cooling, and particularly to an engine cooling device. Background Art

[0002] The performance of the engine cooling system is crucial for improving the overall vehicle efficiency. Traditional cooling systems mostly adopt liquid cooling methods, which dissipate heat into the air through radiators in high-temperature environments to maintain the low-temperature environment required for the normal operation of the engine. However, with the increasingly strict environmental protection regulations and the requirements of technological progress, modern engines not only pursue the goal of high efficiency and energy conservation but also must meet more stringent emission standards and higher reliability requirements.

[0003] Under related technologies, in order to improve the heat dissipation efficiency of the cooling system, the industry generally adopts various means to optimize the design and layout of the radiator. On the one hand, by increasing the number and area of heat dissipation fins, the heat exchange capacity of the radiator is improved; on the other hand, by optimizing the relative position between the fan and the heat dissipation housing, the flow characteristics of the air flow are improved. In addition, some solutions further improve the cooling effect by improving the circulation path of the coolant. However, these means mostly focus on the optimization of static structures and do not fully consider the heat dissipation requirements under dynamic working conditions.

[0004] In view of the above related technologies, although the existing technologies have made certain progress, the traditional cooling system still has obvious defects. Especially under the fixed-distance design between the fan and the heat dissipation housing, it is easy to form a local high-pressure area due to uneven air flow distribution, which in turn triggers the "short-circuit effect", causing some air flow to directly return without penetrating the heat dissipation fins, significantly reducing the heat dissipation efficiency. This problem is particularly prominent under complex working conditions and has become a key bottleneck restricting the improvement of the cooling system performance. Summary of the Invention

[0005] In order to be able to adjust the fan position according to the actual heat dissipation situation to improve the heat dissipation effect, this application provides an engine cooling device.

[0006] An engine cooling device provided by this application adopts the following technical solutions: An engine cooling device, characterized in that: it includes a heat dissipation housing and a cooling component; A liquid inlet is provided on the top wall of the heat dissipation housing, a liquid outlet is provided on the bottom wall of the heat dissipation housing, the liquid inlet is communicated with a liquid inlet pipe, the liquid outlet is communicated with a liquid outlet pipe, one end of the liquid inlet pipe close to the heat dissipation housing is communicated with one end of the liquid outlet pipe close to the heat dissipation housing through a cooling pipe, a plurality of heat dissipation fins are arranged at intervals in a first direction in the heat dissipation housing, and a plurality of through holes are penetrated in a second direction through one side of the heat dissipation housing, and the second direction is perpendicular to the first direction; The cooling component includes a fan unit, which is located on one side of the heat dissipation housing close to the through hole. The fan unit is slidably connected to the heat dissipation housing in a first direction to adjust the distance between the fan unit and the heat dissipation housing.

[0007] By adopting the above technical solution, by providing heat dissipation fins and a cooling component, when the engine needs to be cooled down, the coolant enters the cooling tank outside the engine through the drain pipe, so that the coolant cools the engine. After the cooling is completed, the coolant further increases in temperature under the heat transfer of the engine, and then is transported into the cooling pipe through the inlet pipe. Under the action of the heat dissipation fins, the coolant in the cooling pipe is cooled. The cooled coolant enters the cooling tank outside the engine again through the drain pipe, so that a real circulation loop is realized by the drain pipe, the cooling pipe and the inlet pipe, and the cooling of the coolant is further realized; if the temperature of the coolant in the cooling pipe is still relatively high, the fan is turned on. By providing the fan unit, the fan unit releases the heat in the heat dissipation housing into the air, so as to further realize the cooling effect on the coolant; if the fan unit is too close to the heat dissipation housing, a local high-pressure area will be formed between the fan unit and the heat dissipation housing, resulting in some airflows not penetrating the heat dissipation fins and directly flowing back (i.e., the "short-circuit effect"), reducing the heat dissipation efficiency. Therefore, in order to facilitate adjusting the distance between the fan unit and the heat dissipation housing, it is set that the fan unit is slidably connected to the heat dissipation housing in a second direction, so as to adjust the position of the fan unit relative to the heat dissipation housing according to the actual situation.

[0008] Optionally, it further includes a sliding component. The sliding component includes a sliding seat. One end of the sliding seat is connected to the heat dissipation housing. The sliding seat is provided with a first sliding groove in a second direction. The fan unit includes a fan housing. One end of the fan housing is fixedly connected with a sliding block, and the sliding block is located in the first sliding groove and slides along the first sliding groove.

[0009] By adopting the above technical solution, by providing the sliding component, the position of the fan unit is adjusted by the sliding of the sliding block in the first sliding groove to improve the cooling effect on the coolant. When the fan unit is adjusted to the optimal position, the first sliding block is fixed to the sliding seat by screws.

[0010] Optionally, the cooling component further includes a water spraying seat, which is arranged on one side of the fan housing close to the heat dissipation housing. Two water spraying seats are arranged at intervals in a third direction. The water spraying seat is directly or indirectly connected to the fan housing. A plurality of water spraying holes are penetrated in a second direction on one side of the water spraying seat close to the heat dissipation housing.

[0011] By adopting the above technical solution, in order to further improve the cooling effect on the coolant, the cooling assembly further includes a water spraying seat. By spraying water through the water spraying seat, the water flow is sprayed onto the cooling pipe through the through hole, thereby further improving the cooling effect on the coolant in the cooling pipe.

[0012] Optionally, the water spraying seat is slidably connected to the fan housing in a reciprocating manner along a third direction.

[0013] By adopting the above technical solution, in order to maximize the water spraying range of the water spraying seat, the water spraying seat is slidably connected to the fan housing in a reciprocating manner along a third direction, thereby further expanding the water spraying range of the water spraying seat.

[0014] Optionally, the cooling assembly further includes a water tank and a water inlet pipe. One end of the water inlet pipe is communicated with the water tank, and the other end is fixedly communicated with one of the water spraying seats. The two water spraying seats are communicated with each other through a connecting pipe.

[0015] By adopting the above technical solution, in order to provide a water source for the water spraying seat, the cooling assembly further includes a water tank and a water inlet pipe. The water in the water tank enters the water spraying seat through the water inlet pipe and is sprayed through the water spraying holes.

[0016] Optionally, a drain port is provided on the bottom wall of the heat dissipation housing, and a drain pipe is communicated with the drain port. The other end of the drain pipe is communicated with the water tank.

[0017] By adopting the above technical solution, under the action of the fan unit, most of the water on the cooling pipe can be dried, and some water may flow to the bottom wall of the heat dissipation housing. In order to drain the water on the bottom wall of the heat dissipation housing, a drain port is provided on the bottom wall of the heat dissipation housing, and a drain pipe is communicated with the drain port. The other end of the drain pipe is communicated with the water tank, and the water drained by the drain pipe enters the water tank again for recycling.

[0018] Optionally, a flow guiding plate is provided inside the heat dissipation housing. The flow guiding plate is arranged on one side of the heat dissipation housing close to the bottom wall. One end of the flow guiding plate is fixedly connected to the side wall of the heat dissipation housing, and the other end is arranged close to the drain port and is inclined towards the drain port along the direction from the liquid inlet to the liquid outlet.

[0019] By adopting the above technical solution, by providing the flow guiding plate, the water flow is guided to the drain port by the flow guiding plate for drainage.

[0020] Optionally, a filter plate is provided in the water tank. A plurality of filter holes are penetrated through the filter plate along a third direction. One end of the water inlet pipe is located on one side of the filter plate close to the bottom wall of the water tank, the drain pipe is arranged on one side of the filter plate away from the bottom wall of the water tank, and a water pump is communicated with the water inlet pipe.

[0021] By adopting the above technical solution, dust may be generated in the heat dissipation housing with a long time, and there may be impurities in the water discharged into the water tank by the drain pipe. Therefore, a filter plate is provided in the water tank, and the impurities in the water discharged by the drain pipe are filtered through the filter holes of the filter plate.

[0022] Optionally, the cooling pipe is bent, and the cooling pipe is clamped between two adjacent heat dissipation fins.

[0023] By adopting the above technical solution, in order to further improve the heat dissipation effect of the heat dissipation fins on the cooling pipe, the cooling pipe is bent, and the cooling pipe is clamped between two adjacent heat dissipation fins. The outside cold air penetrates through the heat dissipation fins, absorbs heat and then is discharged as hot air, so as to further improve the cooling effect of the coolant.

[0024] Optionally, the fan unit further includes a rotating shaft and blades. The rotating shaft is parallel to the second direction. The rotating shaft is rotatably connected to the fan housing. The rotation axis of the rotating shaft along the fan housing is parallel to the second direction. A collar is coaxially and fixedly sleeved on the rotating shaft, and a plurality of the blades are fixedly connected in the circumferential direction of the collar; It further includes a second driving assembly. The second driving assembly includes a first bevel gear, a second bevel gear and a reciprocating screw rod; The first bevel gear is coaxially sleeved on the rotating shaft. The reciprocating screw rod is parallel to the third direction. The reciprocating screw rod is rotatably connected to the fan housing. One end of the reciprocating screw rod is coaxially sleeved with the second bevel gear. The second bevel gear meshes with the first bevel gear. The water spraying seat is sleeved on the reciprocating screw rod and slides along the length direction of the reciprocating screw rod.

[0025] By adopting the above technical solution, in order to drive the water spraying seat to slide along the third direction, by setting the second driving assembly, the rotating shaft rotates, and the first bevel gear, the second bevel gear and the reciprocating screw rod drive the water spraying seat to slide back and forth along the second direction, so as to spray water by the water spraying seat.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. By setting the heat dissipation housing and the fan unit in the present application, if the fan unit is too close to the heat dissipation housing, a local high-pressure area will be formed between the fan unit and the heat dissipation housing, resulting in part of the air flow not penetrating the heat dissipation fins and directly flowing back (i.e., "short-circuit effect"), reducing the heat dissipation efficiency. Therefore, in order to facilitate adjusting the distance between the fan unit and the heat dissipation housing, the fan unit is slidably connected to the heat dissipation housing along the second direction, so as to adjust the position of the fan unit relative to the heat dissipation housing according to the actual situation; 2. By setting the water spraying seat in the present application, the cooling effect on the cooling pipe is further improved; 3. The present application expands the water spraying range of the water spraying seat by setting the water spraying seat to slide in the third direction. Description of the Drawings

[0027] Figure 1 is a schematic structural diagram of the heat dissipation housing, the fan unit and the sliding assembly of the present application; Figure 2 is a schematic structural diagram of the heat dissipation fins and the cooling pipe of the present application; Figure 3 is a schematic structural diagram of the cooling assembly of the present application; Figure 4 is a schematic structural diagram of the connection between the guide plate and the heat dissipation fins of the present application; Figure 5 is a schematic structural diagram of the first drive assembly and the second drive assembly of the present application; Description of the reference numerals: 1, heat dissipation housing; 11, liquid inlet; 111, liquid inlet pipe; 12, liquid outlet; 121, liquid outlet pipe; 13, cooling pipe; 14, through hole; 15, drain port; 16, guide plate; 17, baffle; 18, water passing area; 19, heat dissipation fins; 2, cooling assembly; 21, fan unit; 211, fan housing; 2111, slider; 22, water spraying seat; 221, connecting pipe; 23, water spraying member; 231, water spraying hole; 24, water tank; 241, filter plate; 242, filter hole; 25, water inlet pipe; 251, water pump; 26, drain pipe; 27, rotating shaft; 28, blade; 29, collar; 3, sliding assembly; 31, sliding seat; 311, first chute; 4, first drive assembly; 41, motor; 42, first mounting seat; 5, second drive assembly; 51, first bevel gear; 52, second bevel gear; 53, reciprocating lead screw; 6, guide rod. Detailed Description of the Embodiment

[0028] The following will further describe the present application in detail with reference to the Figures 1-5 drawings.

[0029] The embodiment of the present application discloses an engine cooling device. For the convenience of description, the present application introduces orientation words such as the first direction, the second direction and the third direction to form a three-dimensional reference direction. The orientation words such as "the first direction, the second direction and the third direction" can specifically refer to the figure shown, where X represents the first direction X, Y represents the second direction Y, Z represents the third direction Z, and the first direction X, the second direction Y and the third direction Z are perpendicular to each other in pairs.

[0030] Refer to Figure 1 and Figure 2, the engine cooling device includes a heat dissipation housing 1 and a cooling component 2; a liquid inlet 11 is provided on the top wall of the heat dissipation housing 1, a liquid outlet 12 is provided on the bottom wall of the heat dissipation housing 1, the liquid inlet 11 is communicated with a liquid inlet pipe 111, the liquid outlet 12 is communicated with a liquid discharge pipe 121, one end of the liquid inlet pipe 111 close to the heat dissipation housing 1 is communicated with one end of the liquid discharge pipe 121 close to the heat dissipation housing 1 through a cooling pipe 13, a plurality of heat dissipation fins 19 are arranged in the heat dissipation housing 1 at intervals in the first direction, a plurality of through holes 14 are penetrated in one side of the heat dissipation housing 1 in the second direction, the other side is not closed, and the second direction is perpendicular to the first direction; the cooling component 2 includes a fan unit 21, the fan unit 21 is located on one side of the heat dissipation housing 1 close to the through holes 14, the fan unit 21 is slidably connected to the heat dissipation housing 1 in the first direction to adjust the distance between the fan unit 21 and the heat dissipation housing 1. It should be noted that both ends of the liquid inlet pipe 111 and the liquid discharge pipe 121 far from the heat dissipation housing 1 are communicated with a cooling tank arranged outside the engine. When the engine needs to be cooled, the coolant enters the cooling tank outside the engine through the liquid discharge pipe 121, so that the engine is cooled by the coolant. After the cooling is completed, the temperature of the coolant further rises under the heat transfer of the engine, and then is transported into the cooling pipe 13 through the liquid inlet pipe 111. Under the action of the heat dissipation fins 19, the coolant in the cooling pipe 13 is cooled, and the cooled coolant enters the cooling tank outside the engine again through the liquid discharge pipe 121, so that a real circulation loop is realized by the liquid discharge pipe 121, the cooling pipe 13 and the liquid inlet pipe 111, and the cooling of the coolant is further realized.

[0031] Refer to Figure 1 , if the temperature of the coolant in the cooling pipe 13 is still relatively high, the fan is turned on. By setting the fan unit 21, the fan unit 21 releases the heat in the heat dissipation housing 1 into the air, so as to further realize the cooling effect on the coolant; if the fan unit 21 is too close to the heat dissipation housing 1, a local high-pressure area will be formed between the fan unit 21 and the heat dissipation housing 1, resulting in part of the air flow not penetrating the heat dissipation fins 19 and directly flowing back (i.e., the "short-circuit effect"), reducing the heat dissipation efficiency. Therefore, in order to facilitate adjusting the distance between the fan unit 21 and the heat dissipation housing 1, the fan unit 21 is set to be slidably connected to the heat dissipation housing 1 in the second direction, so as to adjust the position of the fan unit 21 relative to the heat dissipation housing 1 according to the actual situation.

[0032] Refer to Figure 1, Specifically, in order to enable the fan to slide in the second direction, the engine cooling device further includes a sliding assembly 3. The sliding assembly 3 includes a sliding seat 31. One end of the sliding seat 31 is fixedly connected to the heat dissipation housing 1. The sliding seat 31 is provided with a first sliding groove 311 along the second direction. The fan unit 21 includes a fan housing 211. One end of the fan housing 211 is fixedly connected with a slider 2111. The slider 2111 is located in the first sliding groove 311 and slides along the first sliding groove 311. The position of the fan unit 21 is adjusted by the sliding of the slider 2111 in the first sliding groove 311 to improve the cooling effect on the coolant. When the fan unit 21 is adjusted to the optimal position, the first slider 2111 is fixed to the sliding seat 31 by screws.

[0033] Refer to Figure 2 , In order to further improve the heat dissipation effect of the heat dissipation fins on the cooling pipe 13, in this embodiment, the cooling pipe 13 is bent. The cooling pipe 13 is clamped between two adjacent heat dissipation fins. The outside cold air penetrates the heat dissipation fins, absorbs heat and then is discharged as hot air, so as to further improve the cooling effect of the coolant.

[0034] Refer to Figure 1 and Figure 3 , In order to further improve the cooling effect on the coolant, the cooling assembly 2 further includes a water spraying seat 22. The water spraying seat 22 is arranged on one side of the fan housing 211 close to the heat dissipation housing 1. Two water spraying seats 22 are arranged at intervals along the third direction. The water spraying seat 22 is connected to the fan housing 211. A plurality of water spraying members 23 are fixedly communicated on one side of the water spraying seat 22 close to the heat dissipation housing 1. The water spraying members 23 are provided with a plurality of water spraying holes 231 along the second direction. By spraying water from the water spraying seat 22, the water flow is sprayed on the cooling pipe 13 through the through hole 14, thereby further improving the cooling effect on the coolant in the cooling pipe 13.

[0035] Refer to Figure 3 , In order to maximize the water spraying range of the water spraying seat 22, the water spraying seat 22 is slidably connected to the fan housing 211 in a reciprocating manner along the third direction, thereby further expanding the water spraying range of the water spraying seat 22.

[0036] Refer to Figure 3 , In order to provide water source for the water spraying seat 22, the cooling assembly 2 further includes a water tank 24 and a water inlet pipe 25. One end of the water inlet pipe 25 is communicated with the water tank 24, and the other end is fixedly communicated with the water spraying seat 22. The water in the water tank 24 enters the water spraying seat 22 through the water inlet pipe 25 and is sprayed through the water spraying holes 231. A connecting pipe 221 is communicated between the two water spraying seats 22.

[0037] Refer to Figure 4, under the action of the fan unit 21, most of the water on the cooling pipe 13 can be dried, and some water may flow to the bottom wall of the heat dissipation housing 1. To drain the water on the bottom wall of the heat dissipation housing 1, a drain port 15 is opened on the bottom wall of the heat dissipation housing 1. A drain pipe 26 is connected to the drain port 15, and the other end of the drain pipe 26 is connected to the water tank 24. The water discharged from the drain pipe 26 enters the water tank 24 again for recycling.

[0038] Referring to Figure 4 , to guide the water in the heat dissipation housing 1, a guide plate 16 is provided in the heat dissipation housing 1. The guide plate 16 is provided on one side of the heat dissipation housing 1 close to the bottom wall. One end of the guide plate 16 is fixedly connected to the side wall of the heat dissipation housing 1, and the other end is arranged close to the drain port 15. It is inclined towards the drain port 15 along the direction from the liquid inlet 11 to the liquid outlet 12, and the water flow is guided by the guide plate 16.

[0039] Referring to Figure 4 , to reduce the water overflowing from the heat dissipation housing 1, a baffle 17 is fixedly connected to the end of the guide plate 16 far from the through hole 14, so that a water passing area 18 is formed by the baffle 17 and the guide plate 16, and the water flow passes through the water passing area 18 and is discharged by the drain pipe 26.

[0040] Referring to Figure 3 , since dust may be generated in the heat dissipation housing 1 after a long time, the water discharged into the water tank 24 from the drain pipe 26 may contain impurities. Therefore, a filter plate 241 is provided in the water tank 24. A plurality of filter holes 242 are formed in the filter plate 241 along the third direction. One end of the drain pipe 26 is located above the filter plate 241, and one end of the water inlet pipe 25 is located on the side of the filter plate 241 close to the bottom wall of the water tank 24. A water pump 251 is connected to the water inlet pipe 25, and the impurities in the water discharged from the drain pipe 26 are filtered by the filter holes 242 of the filter plate 241.

[0041] Referring to Figure 5 , to drive the fan unit 21 to rotate, the fan unit 21 further includes a rotating shaft 27, blades 28 and a collar 29. The rotating shaft 27 is parallel to the second direction. The rotating shaft 27 is rotatably connected to the fan housing 211. The rotating shaft 27 of the fan housing 211 is parallel to the second direction. The collar 29 is coaxially and fixedly sleeved on the rotating shaft 27, and a plurality of blades 28 are fixedly connected in the circumferential direction of the collar 29; the rotation of the rotating shaft 27 drives the blades 28 to rotate.

[0042] Referring to Figure 5, To drive the rotation of the rotating shaft 27, the engine cooling device further includes a first driving assembly 4. The first driving assembly 4 further includes a motor 41 and a first mounting seat 42. The output shaft of the motor 41 is coaxially and fixedly connected to the rotating shaft 27. The housing of the motor 41 is fixedly connected to the fan housing 211 through the first mounting seat 42. The motor 41 drives the rotating shaft 27 to rotate, and further drives the blade 28 to rotate.

[0043] Referring to Figure 5 , To drive the water spraying seat 22 to slide in the third direction, the engine cooling device further includes a second driving assembly 5. The second driving assembly 5 includes a first bevel gear 51, a second bevel gear 52 and a reciprocating lead screw 53. The first bevel gear 51 is coaxially sleeved on the rotating shaft 27. The reciprocating lead screw 53 is parallel to the third direction. One end of the reciprocating lead screw 53 is rotatably connected to the fan housing 211. One end of the reciprocating lead screw 53 is coaxially sleeved with the second bevel gear 52. The second bevel gear 52 meshes with the first bevel gear 51. The water spraying seat 22 is sleeved on the reciprocating lead screw 53, and the water spraying seat 22 slides along the length direction of the reciprocating lead screw 53. By rotating the rotating shaft 27, the first bevel gear 51, the second bevel gear 52 and the reciprocating lead screw 53 drive the water spraying seat 22 to slide back and forth in the second direction, so that the water spraying member 23 sprays water.

[0044] Referring to Figure 5 , To guide the sliding of the water spraying seat 22 along the length direction of the reciprocating lead screw 53, the engine cooling device further includes a guide rod 6. The guide rod 6 is parallel to the second direction. One end of the guide rod 6 is fixedly connected to the fan housing 211, and the other end passes through the water spraying seat 22. The water spraying seat 22 slides along the length direction of the guide rod 6, and the guide rod 6 guides the sliding of the water spraying seat 22 in the second direction.

[0045] The implementation principle of an engine cooling device according to an embodiment of the present application is as follows: When cooling the engine, the coolant enters the cooling box outside the engine through the drain pipe 121, so that the coolant cools the engine. After the cooling is completed, the coolant further increases in temperature under the heat transfer of the engine, and then is conveyed into the cooling pipe 13 through the inlet pipe 111. Under the action of the heat dissipation fins 19, the coolant in the cooling pipe 13 is cooled. The cooled coolant enters the cooling box outside the engine through the drain pipe 121 again. Thus, a real circulation loop is realized by the drain pipe 121, the cooling pipe 13 and the inlet pipe 111, and further the cooling of the coolant is realized; The motor 41 drives rotation, which further drives the blade 28 to rotate, so as to release the heat in the heat dissipation housing 1 into the air, thereby further realizing the cooling effect on the coolant. The fan unit 21 is slidably connected to the heat dissipation housing 1 along the second direction, so as to facilitate adjusting the position of the fan unit 21 relative to the heat dissipation housing 1 according to the actual situation; the rotating shaft 27 rotates, and drives the water spraying seat 22 to slide back and forth along the second direction through the first bevel gear 51, the second bevel gear 52 and the reciprocating lead screw 53. Water is sprayed through the water spraying seat 22, and the water flow is sprayed on the cooling pipe 13 through the through hole 14, thereby further improving the cooling effect on the coolant in the cooling pipe 13.

[0046] The above are all the preferred embodiments of this application. The protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape and principle of this application shall be covered within the protection scope of this application.

Claims

1. An engine cooling device, characterized in that: It includes a heat dissipation housing (1) and a cooling component (2); A liquid inlet (11) is provided on the top wall of the heat dissipation housing (1), a liquid outlet (12) is provided on the bottom wall of the heat dissipation housing (1), the liquid inlet (11) is communicated with a liquid inlet pipe (111), the liquid outlet (12) is communicated with a liquid outlet pipe (121), one end of the liquid inlet pipe (111) close to the heat dissipation housing (1) is communicated with one end of the liquid outlet pipe (121) close to the heat dissipation housing (1) through a cooling pipe (13), a plurality of heat dissipation fins (19) are arranged in the heat dissipation housing (1) at intervals in a first direction, and a plurality of through holes (14) are arranged through the heat dissipation housing (1) along a second direction on one side of the heat dissipation housing (1), and the second direction is perpendicular to the first direction; The cooling component (2) includes a fan unit (21), the fan unit (21) is located on the side of the heat dissipation housing (1) close to the through holes (14), and the fan unit (21) is slidably connected to the heat dissipation housing (1) in the first direction to adjust the distance between the fan unit (21) and the heat dissipation housing (1).

2. The engine cooling device according to claim 1, wherein: It further includes a sliding component (3), the sliding component (3) includes a sliding seat (31), one end of the sliding seat (31) is connected to the heat dissipation housing (1), a first sliding groove (311) is arranged in the sliding seat (31) along the second direction, the fan unit (21) includes a fan housing (211), and a slider (2111) is fixedly connected to one end of the fan housing (211), and the slider (2111) is located in the first sliding groove (311) and slides along the first sliding groove (311).

3. An engine cooling device according to claim 2, characterized in that: The cooling component (2) further includes a water spraying seat (22), the water spraying seat (22) is arranged on the side of the fan housing (211) close to the heat dissipation housing (1), two water spraying seats (22) are arranged at intervals along a third direction, the water spraying seat (22) is directly or indirectly connected to the fan housing (211), and a plurality of water spraying holes (231) are arranged through the water spraying seat (22) along the second direction on the side close to the heat dissipation housing (1).

4. An engine cooling device according to claim 3, characterized in that: The water spraying seat (22) is slidably connected to the fan housing (211) in a reciprocating manner along the third direction.

5. An engine cooling device according to claim 4, characterized in that: The cooling component (2) further includes a water tank (24) and a water inlet pipe (25), one end of the water inlet pipe (25) is communicated with the water tank (24), and the other end is fixedly communicated with one of the water spraying seats (22), and the two water spraying seats (22) are communicated through a connecting pipe (221).

6. The engine cooling device according to claim 5, wherein: A drain port (15) is provided on the bottom wall of the heat dissipation housing (1), a drain pipe (26) is communicated at the drain port (15), and the other end of the drain pipe (26) is communicated with the water tank (24).

7. An engine cooling device according to claim 6, characterized in that: A flow guide plate (16) is provided inside the heat dissipation housing (1). The flow guide plate (16) is disposed on one side of the heat dissipation housing (1) close to the bottom wall. One end of the flow guide plate (16) is fixedly connected to the side wall of the heat dissipation housing (1), and the other end is disposed near the drain port (15), and is inclined towards the drain port (15) along the direction from the liquid inlet (11) to the liquid outlet (12).

8. An engine cooling device according to claim 6, characterized in that: A filter plate (241) is provided inside the water tank (24). A plurality of filter holes (242) are penetrated along a third direction on the filter plate (241). One end of the water inlet pipe (25) is located on one side of the filter plate (241) close to the bottom wall of the water tank (24), and the drain pipe (26) is disposed on one side of the filter plate (241) away from the bottom wall of the water tank (24). A water pump (251) is communicated with the water inlet pipe (25).

9. An engine cooling device according to claim 1, characterized in that: The cooling pipe (13) is bent, and the cooling pipe (13) is clamped between two adjacent heat dissipation fins (19).

10. An engine cooling device according to claim 4, characterized in that: The fan unit (21) further includes a rotating shaft (27) and blades (28). The rotating shaft (27) is parallel to the second direction. The rotating shaft (27) is rotatably connected to the fan housing (211). The axis of the rotating shaft (27) of the fan housing (211) is parallel to the second direction. A collar (29) is coaxially and fixedly sleeved on the rotating shaft (27), and a plurality of the blades (28) are fixedly connected in the circumferential direction of the collar (29); It further includes a second driving assembly (5). The second driving assembly (5) includes a first bevel gear (51), a second bevel gear (52) and a reciprocating lead screw (53); The first bevel gear (51) is coaxially sleeved on the rotating shaft (27). The reciprocating lead screw (53) is parallel to the third direction. The reciprocating lead screw (53) is rotatably connected to the fan housing (211). One end of the reciprocating lead screw (53) is coaxially sleeved with the second bevel gear (52). The second bevel gear (52) meshes with the first bevel gear (51). The water spraying seat (22) is sleeved on the reciprocating lead screw (53) and slides along the length direction of the reciprocating lead screw (53).

Images