Cooling system for internal combustion engine

Abstract

The invention belongs to the technical field of internal combustion engine cooling, and discloses a cooling system for an internal combustion engine, which comprises an engine body, a water pump mounted on one side of the engine body, a cooling assisting assembly mounted on one side, close to the engine body, of an air inlet assembly, and a heat exchange assembly mounted on one side, close to the engine body, of the cooling assisting assembly. The second fan is located between the heat exchange assembly and the engine body, a plurality of ventilation holes are formed in the cooling assisting plate, cold liquid flows in the cooling assisting plate, and the cold liquid in the cooling assisting plate flows through the cold water cavities. According to the cooling system for the internal combustion engine, hot cooling liquid is subjected to heat exchange and cooling by cold air and cold liquid in the heat exchange box, and the flowing directions of the hot cooling liquid and the cold liquid are opposite, so that the cooling liquid subjected to heat exchange can be subjected to high-temperature-difference cooling and heat exchange before flowing out of the cooling liquid cavity; and the heat exchange effect on the cooling liquid is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of internal combustion engine cooling, and in particular to a cooling system for an internal combustion engine. Background Art

[0002] An internal combustion engine, also known as an internal combustion engine or engine, is a power conversion system that converts the chemical energy (heat energy) released by the reaction into mechanical energy by causing a chemical reaction (combustion) between fuel and air inside the system. The cooling system of an internal combustion engine mainly includes a water pump, a radiator, a coolant, a cooling fan, a thermostat, and a refill tank, among which the cooling fan is used to fan the air through the radiator at high speed to take away the heat from the radiator and realize the heat exchange and circulating cooling of the coolant.

[0003] Although the use of a cooling fan can achieve rapid cooling of the radiator, when the external temperature is high, the temperature difference of the coolant heat exchange is small, resulting in the engine cylinder block and cylinder head not being able to be cooled well. The engine runs at high temperature for a long time, which can easily cause thermal damage to the engine. Therefore, a cooling system for an internal combustion engine is proposed. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the inventors conducted in-depth research and completed the present invention after paying a lot of creative work.

[0005] Specifically, the technical problem to be solved by the present invention is to provide a cooling system for an internal combustion engine to solve the technical problem that the current cooling system for an internal combustion engine is difficult to cool down the engine well in a high temperature environment.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: A cooling system for an internal combustion engine, comprising an engine body, a water pump is installed on one side of the engine body, a second fan is arranged on a side of the water pump away from the engine body, the second fan is drivingly connected to an output shaft of the water pump, an air inlet assembly is arranged on a side of the second fan away from the engine body, a cooling aid assembly is installed on a side of the air inlet assembly close to the engine body, a heat exchange assembly is installed on a side of the cooling aid assembly close to the engine body, and the second fan is located between the heat exchange assembly and the engine body; The air inlet assembly comprises an air inlet cover, a filter assembly is installed on the side of the air inlet cover, a motor is installed in the middle of the air inlet cover, a first fan is arranged inside the air inlet cover, and the motor is used to drive the first fan to rotate; The cooling auxiliary component includes a cooling auxiliary plate, a plurality of ventilation holes are provided in the cooling auxiliary plate, and cold liquid flows in the cooling auxiliary plate. The heat exchange component includes a first collecting box and a second collecting box, and a plurality of heat exchange boxes are installed in a linear array between the first collecting box and the second collecting box. The heat exchange box includes a cold water cavity and a cooling liquid cavity. The cold liquid in the cooling auxiliary plate flows through the plurality of cold water cavities, and the cooling liquid cavity is used for flowing cooling liquid. A first connecting head is provided on one side of the first collecting box, and a second connecting head is provided on one side of the second collecting box. One end of the plurality of cooling liquid cavities is connected to the first connecting head, and the other end of the plurality of cooling liquid cavities is connected to the second connecting head. The engine body is connected to the first connecting head through a hot liquid delivery pipe, and the water pump is connected to the second connecting head through a cooling liquid delivery pipe.

[0007] As an improved technical solution, a hot liquid collection chamber and a drainage chamber are provided in the first collection box, a cold liquid collection chamber and a water supply chamber are provided in the second collection box, the first connecting head is connected to the hot liquid collection chamber, the second connecting head is connected to the cold liquid collection chamber, the tops of several cooling liquid chambers are connected to hot liquid output pipes, the hot liquid output pipes are connected to the hot liquid collection chamber, and the bottoms of several cooling liquid chambers are connected to cold night output pipes, the cold night output pipes are connected to the cold liquid collection chamber.

[0008] As an improved technical solution, a water inlet chamber and a water outlet chamber are opened inside the cooling auxiliary component, a plurality of water channels are opened linearly and equidistantly between the water inlet chamber and the water outlet chamber, a plurality of ventilation holes are distributed at the positions of the water channels, and the water inlet chamber and the water outlet chamber are connected through the water channels.

[0009] As an improved technical solution, several of the ventilation holes are opposite to several of the cooling liquid chambers, and the side of the cooling liquid chamber close to the ventilation holes is an arc structure; the cold water chamber is opposite to the second fan, and the side of the cold water chamber close to the second fan is a horizontal plane structure.

[0010] As an improved technical solution, a water tank is installed on the top of the cooling plate, a refrigeration module is installed on one side of the water tank, and a circulating pump is installed on the other side of the water tank. A water inlet pipe is connected to the top of the cooling plate, the water inlet pipe is connected to the water inlet cavity, the circulating pump is connected to the water inlet pipe, and a plurality of water outlet pipes are connected to the bottom of the cooling plate, the water outlet pipes are connected to the upper water cavity, and the refrigeration module is connected to the drainage cavity.

[0011] As an improved technical solution, the first wind shield is installed on the opposite side of the cooling plate close to the engine body, and the first collecting box and the second collecting box are installed on one side close to the engine body, respectively, and the adjacent side of the first wind shield is abutted against the adjacent side of the second wind shield.

[0012] As an improved technical solution, the filter assembly includes two relatively arranged discs, a central axis is installed between the axes of the two discs, both ends of the central axis are fixedly passed through the discs, both ends of the central axis are movably connected to the side walls of the air inlet hood, a filter screen is detachably installed between the two discs, an air guide plate is installed between the two discs, the air guide plate is a quarter arc structure, and the filter screen is a half arc structure.

[0013] As an improved technical solution, two U-shaped clamps are respectively installed on the opposite sides of the two discs, and an arc-shaped baffle is respectively installed on the opposite sides of the two discs. The top two sides and the bottom two sides of the filter screen are respectively clamped in the corresponding U-shaped clamps, and the air guide plate is fitted with one side of the filter screen.

[0014] After adopting the above technical solution, the beneficial effects of the present invention are: (1) The hot coolant in the heat exchange box is not only cooled by the cold air but also by the cold liquid. The flow directions of the hot coolant and the cold liquid are opposite. This design can perform high temperature difference cooling and heat exchange before the coolant flows out of the cooling liquid cavity, thereby improving the heat exchange effect of the coolant.

[0015] (2) Before the cold liquid performs high temperature heat exchange with the hot coolant, the incoming air performs low temperature heat exchange with the cold liquid, so that the temperature of the air finally blown to the outer wall of the engine body is lower than the ambient temperature, thereby better dissipating the heat from the outer wall of the engine body.

[0016] (3) Compared with the method of directly taking in air from the windward side, the air intake from the side of the air inlet hood through the filter assembly can reduce the air velocity, thereby preventing the dust and impurities in the high-speed air from causing wear on the cooling components and the heat exchange components. Secondly, the filter plate filters the impurities in the air, which can prevent the accumulation of dust on the outer wall of the heat exchange box after long-term use, affecting the heat exchange effect of the heat exchange box. In addition, the filter plate can be easily disassembled, making maintenance more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them: Figure 1 It is a schematic diagram of the overall structure of a cooling system for an internal combustion engine according to the present invention.

[0018] Figure 2 The figure is a schematic diagram of the second fan installation structure of the cooling system for an internal combustion engine according to the present invention.

[0019] Figure 3 The present invention is a schematic diagram of the assembly structure of the first wind shield plate and the second wind shield plate of the cooling system for an internal combustion engine.

[0020] Figure 4 The present invention is a schematic diagram of the structure of a cooling aid component of a cooling system for an internal combustion engine.

[0021] Figure 5 The cross-sectional structure diagram of the cooling plate of the cooling system of the internal combustion engine according to the present invention.

[0022] Figure 6 The figure is a schematic diagram of the structure of a heat exchange component of a cooling system for an internal combustion engine according to the present invention.

[0023] Figure 7 The cross-sectional structural diagram of the heat exchange component of the cooling system for an internal combustion engine according to the present invention.

[0024] Figure 8 The figure is a schematic diagram of the structure of a heat exchange box used in a cooling system of an internal combustion engine according to the present invention.

[0025] Fig. 9 The figure is a schematic diagram of the structure of an air intake assembly of a cooling system for an internal combustion engine according to the present invention.

[0026] Fig.10 The figure is a schematic diagram of the assembly structure of the filter assembly of the cooling system of the internal combustion engine according to the present invention.

[0027] Fig.11 The figure is a schematic diagram of the disassembled structure of the filter assembly of the cooling system of the internal combustion engine according to the present invention.

[0028] Fig.12 for Figure 5 A is an enlarged view of the middle image.

[0029] Description of reference numerals: 1. Engine body; 2. air inlet assembly; 21. air inlet cover; 22. filter assembly; 221. central axis; 222. disc; 223. air guide plate; 224. filter screen plate; 225. U-shaped clamping plate; 226. arc baffle; 23. motor; 24. first fan; 3. Cooling auxiliary component; 31. Cooling auxiliary plate; 311. Water inlet cavity; 312. Water outlet cavity; 32. Water inlet pipe; 33. Water outlet pipe; 34. Water channel; 35. Ventilation hole; 36. First windproof plate; 37. Water tank; 38. Refrigeration module; 39. Circulation pump; 4. Heat exchange assembly; 41. First collection box; 411. Hot liquid collection chamber; 412. Drain chamber; 42. Heat exchange box; 421. Cold water chamber; 422. Cooling liquid chamber; 43. Hot liquid output pipe; 44. Cold night output pipe; 45. Second collection box; 451. Cold liquid collection chamber; 452. Upper water chamber; 46. First connector; 47. Second connector; 48. Second wind shield; 5. Water pump; 6. Hot liquid delivery pipe; 7. Cold liquid delivery pipe; 8. Second fan. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0032] At the same time, the meaning of "and / or" or "and / or" appearing in the full text includes three options. Taking "A and / or B" as an example, it includes option A, or option B, or a option in which both A and B are satisfied.

[0033] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0034] like Figures 1 to 12As shown together, the present embodiment provides a cooling system for an internal combustion engine, including an engine body 1, a water pump 5 is installed on one side of the engine body 1, a second fan 8 is arranged on the side of the water pump 5 away from the engine body 1, the second fan 8 is transmission-connected to the output shaft of the water pump 5, the blowing direction of the second fan 8 is toward the engine body 1, the second fan 8 rotates in a circle using the driving force of the water pump 5, an air intake assembly 2 is arranged on the side of the second fan 8 away from the engine body 1, a cooling aid assembly 3 is installed on the side of the air intake assembly 2 close to the engine body 1, a heat exchange assembly 4 is installed on the side of the cooling aid assembly 3 close to the engine body 1, and the second fan 8 is located between the heat exchange assembly 4 and the engine body 1.

[0035] The air intake assembly 2 includes an air intake cover 21, a filter assembly 22 is installed on the side of the air intake cover 21, the filter assembly 22 is used to filter dust in the incoming air, a motor 23 is installed in the middle of the air intake cover 21, a first fan 24 is arranged inside the air intake cover 21, the motor 23 is used to drive the first fan 24 to rotate, and the blowing direction of the first fan 24 is toward the cooling assembly 3.

[0036] The cooling component 3 includes a cooling plate 31, and a plurality of ventilation holes 35 are provided in the cooling plate 31. A cold liquid flows in the cooling plate 31. The cold liquid is cooling water or cooling liquid. The air inlet of the first fan 24 is cooled through the plurality of ventilation holes 35. The heat exchange component 4 includes a first collection box 41 and a second collection box 45. A plurality of heat exchange boxes 42 are installed in a linear array between the first collection box 41 and the second collection box 45. The heat exchange box 42 includes a cold water cavity 421 and a cooling liquid cavity 422. The cold liquid in the cooling plate 31 flows through the plurality of cold water cavities 421. The cooling liquid cavity 422 is used for The coolant flows through, and a first connector 46 is provided on one side of the first collecting box 41, and a second connector 47 is provided on one side of the second collecting box 45. One end of a plurality of coolant chambers 422 is connected to the first connector 46, and the other end of a plurality of coolant chambers 422 is connected to the second connector 47. The engine body 1 is connected to the first connector 46 through the hot liquid delivery pipe 6, and the water pump 5 is connected to the second connector 47 through the cold liquid delivery pipe 7. The heat exchange coolant is obtained in the coolant chamber 422, which is cooled by the cooling wind on the one hand, and is cooled by the cold liquid in the cold water chamber 421 on the other hand.

[0037] Combined with Figure 6 and Figure 7As shown, a hot liquid collection chamber 411 and a drainage chamber 412 are provided in the first collection box 41, a cold liquid collection chamber 451 and an upper water chamber 452 are provided in the second collection box 45, a first connector 46 is communicated with the hot liquid collection chamber 411, a second connector 47 is communicated with the cold liquid collection chamber 451, a plurality of cooling liquid chambers 422 are connected to the top with a hot liquid output pipe 43, the hot liquid output pipe 43 is communicated with the hot liquid collection chamber 411, a plurality of cooling liquid chambers 422 are connected to the bottom with a cold night output pipe 44, the cold night output pipe 44 is communicated with the cold liquid collection chamber 451, the hot liquid collection chamber 411 receives the hot coolant, and delivers it to each cooling liquid chamber 422 through the hot liquid output pipe 43 respectively, the hot coolant exchanges heat in the cooling liquid chamber 422, and then is collected to the cold liquid collection chamber 451 through the cold night output pipe 44 for output to dissipate heat for the engine body 1.

[0038] Combined with Figure 4 , Figure 5 and Fig.12 As shown together, a water inlet chamber 311 and a water outlet chamber 312 are opened inside the cooling auxiliary component 3, and a plurality of water channels 34 are linearly and equidistantly opened between the water inlet chamber 311 and the water outlet chamber 312, and a plurality of ventilation holes 35 are distributed at the positions of the water channels 34. The water inlet chamber 311 and the water outlet chamber 312 are connected through the water channel 34, and water is introduced into the water inlet chamber 311 through the water inlet pipe 32 to transport cold liquid. The cold liquid makes the plurality of water channels 34 in a low-temperature state, so that the air flowing through the ventilation holes 35 is heat exchanged and cooled.

[0039] Combined with Figure 6-8 As shown, a plurality of ventilation holes 35 are opposite to a plurality of cooling liquid chambers 422, and the side of the cooling liquid chamber 422 close to the ventilation holes 35 is an arc-shaped structure, and the cold water chamber 421 is opposite to the second fan 8, and the side of the cold water chamber 421 close to the second fan 8 is a horizontal plane structure, one side of the cooling liquid chamber 422 is cooled and heat-exchanged by the cold air, and the other side of the cooling liquid chamber 422 is cooled and heat-exchanged by the cold liquid in the cold water chamber 421, thereby improving the heat exchange effect of the cooling liquid in the cooling liquid chamber 422.

[0040] Combined with Figure 1-6 As shown, a water tank 37 is installed on the top of the cooling plate 31, a refrigeration module 38 is installed on one side of the water tank 37, and a circulating pump 39 is installed on the other side of the water tank 37. A water inlet pipe 32 is connected to the top of the cooling plate 31, the water inlet pipe 32 is connected to the water inlet chamber 311, and the circulating pump 39 is connected to the water inlet pipe 32. A plurality of water outlet pipes 33 are connected to the bottom of the cooling plate 31, the water outlet pipes 33 are connected to the upper water chamber 452, and the refrigeration module 38 is connected to the drainage chamber 412. The refrigeration module 38 is used to drive the flow of cold liquid, and the circulating pump 39 is used to control the forced cooling of the cold liquid.

[0041] Combined with Figure 3 , Figure 4 and Figure 6As shown, the first wind shield 36 is installed on the opposite side of the cooling plate 31 close to the engine body 1, and the second wind shield 48 is installed on the side of the first collecting box 41 and the second collecting box 45 close to the engine body 1, respectively. The adjacent side of the first wind shield 36 is abutted against the adjacent side of the second wind shield 48, and an air guide cover is formed between the two first wind shields 36 and the two second wind shields 48 to concentrate the heat dissipation air to the second fan 8, thereby dissipating the heat from the outer wall of the engine body 1.

[0042] In this embodiment, the air intake assembly 2 is located closer to the front of the vehicle. When the vehicle is driving, the motor 23 is running, so that the first fan 24 rotates to drive the air to enter from the filter assembly 22 at an accelerated speed. The air passes through a plurality of ventilation holes 35 and is heat exchanged and cooled. The cold air is then blown to the outer walls of a plurality of cooling liquid chambers 422 to exchange heat and cool the cooling liquid chambers 422. The cold air then flows between adjacent heat exchange boxes 42 and is blown to the outer wall of the engine body 1 under the drive of the second fan 8. At the same time, the coolant for dissipating heat for the cylinders and cylinder heads inside the engine body 1 is introduced into the hot liquid collection chamber 411 through the hot liquid delivery pipe 6, and then introduced into the cooling liquid chamber 422 through the hot liquid output pipe 43, and then introduced into the cold liquid collection chamber 451 through the cold night output pipe 44. When the water pump 5 is driven At the same time, driven by the refrigeration module 38, the liquid in the cold water chamber 421 enters the water tank 37, and then enters the water inlet chamber 311 and a plurality of water channels 34 after forced cooling by the circulating pump 39, cools the air flowing through the ventilation holes 35, and then enters the upper water chamber 452 through a plurality of water outlet pipes 33, flows from bottom to top in the cold water chamber 421, and then is recovered by the refrigeration module 38 through the drainage chamber 412. In the heat exchange box 42, the flow directions of the hot coolant and the cold liquid are opposite. Such a design can perform high temperature difference cooling and heat exchange before the coolant after heat exchange flows out of the cooling liquid chamber 422, thereby improving the heat exchange effect of the coolant.

[0043] In one embodiment, in combination with Figure 1 , Fig. 9 , Fig.10 and Fig.11As shown, the filter assembly 22 includes two disks 222 arranged opposite to each other, a central shaft 221 is installed between the axes of the two disks 222, both ends of the central shaft 221 are fixedly passed through the disks 222, and both ends of the central shaft 221 are movably connected to the side walls of the air inlet cover 21, and the movably connected structure is a damping pin shaft. Since the wind directly enters the filter screen plate 224 along the air guide plate 223 after the car is running, the central shaft 221 and the air inlet cover 21 will not rotate under normal air intake conditions, rather than forced rotation by human power, and the two disks 222 A filter screen plate 224 is detachably installed between the two disks 222, and an air guide plate 223 is installed between the two disks 222. The air guide plate 223 is a quarter arc structure, and the filter screen plate 224 is a half arc structure. The filter screen plate 224 installed between the two disks 222 and the air guide plate 223 form a three-quarter arc structure. The air guide plate 223 is located outside the air inlet cover 21, and its opening faces the front of the vehicle, so that after the air enters along the air guide plate 223, it is filtered by the filter screen plate 224 and then transmitted by the first fan 24.

[0044] In one embodiment, in combination with Figure 9-11 As shown, two U-shaped clamps 225 are respectively installed on the opposite sides of the two disks 222, and an arc-shaped baffle 226 is respectively installed on the opposite sides of the two disks 222. The top and bottom sides of the filter screen plate 224 are respectively stuck in the corresponding U-shaped clamps 225, and the air guide plate 223 is fitted with one side of the filter screen plate 224. The side axis of the filter screen plate 224 is made of elastic frame material. When the filter screen plate 224 needs to be disassembled and cleaned, the central axis 221 or the disk 222 can be manually rotated to make the filter screen plate 224 completely exposed outside the air inlet cover 21, and then the filter screen plate 224 can be removed from between the U-shaped clamp 225 and the arc-shaped baffle 226, so as to realize convenient maintenance of the filter screen plate 224.

[0045] In the above embodiment, by setting the filter component 22, the air is taken in from the side of the air inlet cover 21. Compared with the method of directly taking in the air from the windward surface, the wind flow rate can be reduced, thereby preventing the dust and impurities in the high-speed flowing air from causing wear to the cooling component 3 and the heat exchange component 4. Secondly, by setting the filter plate 224 to filter the impurities in the air, it can be avoided that after long-term use, the outer wall of the heat exchange box 42 will not accumulate dust, which will affect the heat exchange effect of the heat exchange box 42. In addition, the filter plate 224 can be easily disassembled, and maintenance is more convenient.

[0046] It should be understood that the purpose of these embodiments is only to illustrate the present invention and is not intended to limit the protection scope of the present invention. In addition, it should also be understood that after reading the technical content of the present invention, those skilled in the art can make various changes, modifications and / or variations to the present invention, and all of these equivalent forms also fall within the protection scope defined by the appended claims of this application.

Claims

1. A cooling system for an internal combustion engine, comprising an engine body (1), a water pump (5) being mounted on one side of the engine body (1), a second fan (8) being arranged on a side of the water pump (5) away from the engine body (1), the second fan (8) being drivingly connected to an output shaft of the water pump (5), characterized in that: An air inlet assembly (2) is arranged on a side of the second fan (8) away from the engine body (1); a cooling assembly (3) is installed on a side of the air inlet assembly (2) close to the engine body (1); a heat exchange assembly (4) is installed on a side of the cooling assembly (3) close to the engine body (1); and the second fan (8) is located between the heat exchange assembly (4) and the engine body (1); The air inlet assembly (2) comprises an air inlet cover (21), a filter assembly (22) is installed on the side of the air inlet cover (21), a motor (23) is installed in the middle of the air inlet cover (21), a first fan (24) is arranged inside the air inlet cover (21), and the motor (23) is used to drive the first fan (24) to rotate; The cooling auxiliary component (3) comprises a cooling auxiliary plate (31), a plurality of ventilation holes (35) are provided in the cooling auxiliary plate (31), and cold liquid flows in the cooling auxiliary plate (31). The heat exchange component (4) comprises a first collecting box (41) and a second collecting box (45), a plurality of heat exchange boxes (42) are installed in a linear array between the first collecting box (41) and the second collecting box (45), and the heat exchange box (42) comprises a cold water cavity (421) and a cooling liquid cavity (422). The cold liquid in the cooling auxiliary plate (31) flows through the plurality of cold water cavities (421), and the cooling liquid The cavity (422) is used for cooling liquid to flow through, a first connector (46) is provided on one side of the first collecting box (41), a second connector (47) is provided on one side of the second collecting box (45), one end of a plurality of the cooling liquid cavities (422) is in communication with the first connector (46), and the other end of a plurality of the cooling liquid cavities (422) is in communication with the second connector (47), the engine body (1) is connected to the first connector (46) via a hot liquid delivery pipe (6), and the water pump (5) is connected to the second connector (47) via a cold liquid delivery pipe (7).

2. The cooling system for an internal combustion engine according to claim 1, characterized in that: The first collection box (41) is provided with a hot liquid collection chamber (411) and a drainage chamber (412); the second collection box (45) is provided with a cold liquid collection chamber (451) and a water supply chamber (452); the first connector (46) is in communication with the hot liquid collection chamber (411); the second connector (47) is in communication with the cold liquid collection chamber (451); the tops of a plurality of the cooling liquid chambers (422) are connected to hot liquid output pipes (43); the hot liquid output pipes (43) are in communication with the hot liquid collection chamber (411); the bottoms of a plurality of the cooling liquid chambers (422) are connected to cold night output pipes (44); the cold night output pipes (44) are in communication with the cold liquid collection chamber (451).

3. The cooling system for an internal combustion engine according to claim 2, characterized in that: A water inlet chamber (311) and a water outlet chamber (312) are provided inside the cooling auxiliary component (3); a plurality of water channels (34) are provided linearly and equidistantly between the water inlet chamber (311) and the water outlet chamber (312); a plurality of ventilation holes (35) are distributed at the positions of the water channels (34); and the water inlet chamber (311) and the water outlet chamber (312) are connected via the water channels (34).

4. The cooling system for an internal combustion engine according to claim 3, characterized in that: The plurality of ventilation holes (35) are opposite to the plurality of cooling liquid chambers (422); a side of the cooling liquid chamber (422) close to the ventilation holes (35) is an arc-shaped structure; the cold water chamber (421) is opposite to the second fan (8); a side of the cold water chamber (421) close to the second fan (8) is a horizontal plane structure.

5. The cooling system for an internal combustion engine according to claim 4, characterized in that: A water tank (37) is installed on the top of the auxiliary cooling plate (31), a refrigeration module (38) is installed on one side of the water tank (37), and a circulation pump (39) is installed on the other side of the water tank (37); a water inlet pipe (32) is connected to the top of the auxiliary cooling plate (31), the water inlet pipe (32) is in communication with the water inlet cavity (311), the circulation pump (39) is in communication with the water inlet pipe (32), a plurality of water outlet pipes (33) are connected to the bottom of the auxiliary cooling plate (31), the water outlet pipes (33) are in communication with the upper water cavity (452), and the refrigeration module (38) is in communication with the drainage cavity (412).

6. The cooling system for an internal combustion engine according to claim 5, characterized in that: A first wind shield (36) is installed on the opposite side of the cooling plate (31) close to the engine body (1), and a second wind shield (48) is installed on the side of the first collecting box (41) and the second collecting box (45) close to the engine body (1), respectively, and the adjacent side of the first wind shield (36) abuts against the adjacent side of the second wind shield (48).

7. The cooling system for an internal combustion engine according to claim 6, characterized in that: The filter assembly (22) comprises two disks (222) arranged opposite to each other, a central axis (221) is installed between the axes of the two disks (222), two ends of the central axis (221) are fixedly passed through the disks (222), two ends of the central axis (221) are movably connected to the side wall of the air inlet cover (21), a filter screen plate (224) is detachably installed between the two disks (222), an air guide plate (223) is installed between the two disks (222), the air guide plate (223) is a quarter arc structure, and the filter screen plate (224) is a half arc structure.

8. The cooling system for an internal combustion engine according to claim 7, characterized in that: Two U-shaped clamping plates (225) are respectively installed on opposite sides of the two circular discs (222), and an arc-shaped baffle plate (226) is respectively installed on opposite sides of the two circular discs (222). The top two sides and the bottom two sides of the filter screen plate (224) are respectively clamped in the corresponding U-shaped clamping plates (225), and the air guide plate (223) is in contact with one side of the filter screen plate (224).

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