Heat dissipation device and vehicle

Abstract

The invention provides a heat dissipation device and a vehicle, and belongs to the technical field of vehicle cooling systems, and the heat dissipation device comprises a heat dissipation shell, a filter assembly, a fan and a heat dissipation device body. A heat dissipation air channel is formed in an inner cavity of the heat dissipation shell. An air inlet is formed in the bottom of the radiating shell, and an air outlet is formed in the top; the filtering assembly is arranged at the air inlet and covers the air inlet; the fan is arranged at the air outlet and covers the air outlet; and the radiator main body is arranged in the radiating air channel. According to the heat dissipation device provided by the invention, the filter assembly can filter impurities so as to prevent the radiator main body from being blocked or damaged by collision; the heat dissipation shell, the filtering assembly and the fan are combined, so that the heat dissipation air channel can form a relatively closed space, the air speed and the air volume passing through the heat dissipation air channel are increased, and the heat dissipation efficiency is improved; the air inlet is formed in the bottom of the heat dissipation shell and does not need to cover the whole heat dissipation shell, so that the requirement for the opening area of the front bumper is not high, the opening position can be lowered, the wind resistance of the whole vehicle can be reduced, and oil consumption is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of vehicle cooling systems, and more specifically, relates to a heat dissipation device and a vehicle. Background Art

[0002] The car water tank, also known as the radiator, is the main component in the car cooling system. Its function is to dissipate heat. The coolant absorbs heat in the engine water jacket, flows to the radiator, and the heat is dissipated, and then flows back to the water jacket to circulate to prevent the engine from overheating.

[0003] Traditional radiators are exposed to the outside and need to be physically cooled by wind. Radiators are easily damaged or blocked under harsh working conditions. If the radiator is damaged, the coolant will leak, the cooling system will lose its cooling capacity, the vehicle's powertrain will heat up rapidly, and the vehicle will no longer be able to be used. If the radiator is blocked and the heat dissipation is insufficient, the engine water temperature will overheat, the engine's self-protection function will be activated, and the vehicle will lose power, seriously affecting driving safety and driving experience. Summary of the invention

[0004] The object of the present invention is to provide a heat dissipation device and a vehicle, aiming to solve the technical problem in the prior art that the radiator is easily damaged or blocked.

[0005] To achieve the above object, the technical solution adopted by the present invention is: to provide a heat dissipation device, comprising: A heat dissipation shell, wherein the inner cavity forms a heat dissipation air duct extending in the up-down direction; the heat dissipation shell is provided with an air inlet at the bottom and an air outlet at the top, and the air inlet and the air outlet are both connected to the heat dissipation air duct; A filter assembly is arranged at the air inlet and covers the air inlet; a fan, disposed at the air outlet and covering the air outlet; and The radiator body is arranged in the heat dissipation air duct; the radiator body has a water inlet and a water outlet, and the water inlet and the water outlet both extend to the heat dissipation shell.

[0006] The heat dissipation device provided by the present invention has the following beneficial effects: compared with the prior art, the heat dissipation device of the present invention has an inner cavity of the heat dissipation shell forming a heat dissipation air duct, and the filter assembly covers the air inlet of the heat dissipation air duct, which can filter out impurities such as catkins, insects, sand and stones, so that the air entering the heat dissipation air duct is clean air, and the radiator body located in the heat dissipation air duct is prevented from being blocked or damaged by collision, thereby ensuring the normal operation of the heat dissipation device and prolonging the service life of the heat dissipation device; The fan covers the air outlet of the heat dissipation duct. The heat dissipation housing, the filter assembly and the fan assembly can form a relatively closed space in the heat dissipation duct to increase the wind speed and air volume passing through the heat dissipation duct and improve the heat dissipation efficiency. Since the air inlet is arranged at the bottom of the heat dissipation shell and does not need to cover the entire heat dissipation shell, the opening area requirement for the front bumper is not high, and the opening position of the front bumper can also be lowered, thereby reducing the wind resistance of the whole vehicle and saving fuel consumption.

[0007] In a possible implementation, the radiator body includes: A plurality of heat dissipation plates are sequentially distributed along the up-down direction; each of the heat dissipation plates is provided with a serpentine flow channel; and the four peripheral edges of each of the heat dissipation plates are connected to the inner peripheral wall of the heat dissipation air channel.

[0008] Each heat sink is filled in the heat sink air duct horizontally to fully utilize the space of the heat sink air duct, increase the heat dissipation area of ​​the heat sink, and prevent the cold air from being lost without passing through the heat sink.

[0009] In some embodiments, each of the heat dissipation plates is arranged to be inclined in an up-down direction.

[0010] Compared with vertically arranging multiple heat sinks in the up and down directions, arranging multiple heat sinks in an inclined manner can increase the area of ​​the heat sinks, that is, increase the area for coolant flow, improve heat dissipation efficiency, and can also correspondingly reduce the width of the heat sink housing and reduce the space occupied by the heat sink.

[0011] In some embodiments, the heat dissipation shell has a first side panel and a second side panel that are relatively arranged and parallel to the up and down directions; the air inlet is arranged at the bottom of the first side panel, and the air outlet is arranged at the top of the second side panel; the water inlet and the water outlet are both arranged on the second side panel.

[0012] The air inlet is arranged at the bottom of the first side panel and does not need to cover the entire first side panel, so the opening area requirement for the front bumper is not high, and the opening position can be lowered, thereby reducing the wind resistance of the whole vehicle and saving fuel consumption; The air outlet is arranged at the top of the second side panel, which can increase the air flow path of the heat dissipation duct, and the rearward air outlet will not be blocked by the engine compartment cover, resulting in poor air outlet.

[0013] The water inlet and the water outlet are both arranged on the second side plate, so as to be connected with the engine water jacket.

[0014] In some embodiments, the heat sink near the air inlet is defined as a first-level heat sink, the lower end of the first-level heat sink is connected to the first side panel and is located above the air inlet, and the upper end of the first-level heat sink extends upward at an angle and is connected to the second side panel.

[0015] The first-stage heat sink is not opposite to the air inlet, and the first-stage heat sink can avoid the filter component to let air into the heat dissipation air duct without blocking the wind or changing the wind direction.

[0016] In some embodiments, the heat sink located above the primary heat sink is defined as a secondary heat sink, the lower end of the secondary heat sink is connected to the first side plate, and the upper end of the secondary heat sink extends obliquely upward and is connected to the second side plate; The liquid inlet end of the secondary heat sink is connected to the liquid outlet end of the primary heat sink via a water pipeline.

[0017] The secondary heat sink adopts the above-mentioned arrangement method, which can reduce the space occupied by the primary heat sink and the secondary heat sink in the lower part of the heat dissipation duct; and after the airflow passes through the primary heat sink, it flows for a distance and then enters the secondary heat sink. During the flow, it can also radiate heat outward through the heat dissipation shell, thereby reducing the temperature of the airflow passing through the secondary heat sink.

[0018] In some embodiments, the number of the heat sinks is four, and the heat sink located above the secondary heat sink is defined as a third-level heat sink, and the heat sink located above the third-level heat sink is defined as a fourth-level heat sink; The lower end of the third-stage heat dissipation plate is connected to the upper end of the second-stage heat dissipation plate and is located below the air outlet, and the upper end of the third-stage heat dissipation plate extends obliquely upward and is connected to the first side plate; The lower end of the four-stage heat sink is connected to the first side plate and is located above the upper end of the three-stage heat sink. The upper end of the four-stage heat sink extends obliquely upward to connect to the second side plate and is located above the air outlet.

[0019] The third-stage heat sink and the fourth-stage heat sink are located in the upper part of the heat dissipation duct. On the basis of fully utilizing the heat dissipation duct space, the number of heat sinks is optimized, which ensures the heat exchange efficiency of the coolant while reducing the cost of the heat exchange device.

[0020] In some embodiments, a first heat sink group is disposed on the outer wall of the first side plate, and the first heat sink group is located between the upper end of the first heat sink plate and the lower end of the second heat sink plate.

[0021] The first heat sink group can absorb the heat in the heat dissipation duct, especially the heat of the air flow after passing through the primary heat sink, so as to reduce the temperature of the air flow passing through the secondary heat sink and increase the heat exchange performance of the secondary heat sink.

[0022] In some embodiments, a second heat sink group is provided on the outer wall of the second side plate, and the second heat sink group is located below the air outlet.

[0023] The second heat sink group is used to absorb the heat in the heat dissipation duct and reduce the ambient temperature of the heat dissipation duct, thereby improving the heat exchange efficiency of the primary heat sink and the secondary heat sink.

[0024] In some embodiments, a third heat sink group is provided on the outer wall of the first side plate, the third heat sink group is located between the upper end of the third-stage heat sink and the lower end of the fourth-stage heat sink, and the third heat sink group corresponds to the air inlet end of the fan.

[0025] The third heat sink group can absorb the heat in the heat dissipation duct. The third heat sink group is located between the third-level heat sink and the fourth-level heat sink, and can especially absorb the heat of the airflow after passing through the third-level heat sink to reduce the ambient temperature of the upper half of the heat dissipation duct and improve the heat exchange efficiency of the third-level heat sink and the fourth-level heat sink.

[0026] In a possible implementation, a through hole is formed on the bottom plate of the heat dissipation housing, and a plug is provided in the through hole.

[0027] The sealing plug functions similarly to a one-way valve. By opening the sealing plug, impurities accumulated on the bottom plate of the heat dissipation housing can be removed through the through hole to ensure that the heat dissipation air duct is clean and tidy, thereby extending the service life of the heat dissipation device.

[0028] The present invention also provides a vehicle, comprising the above-mentioned heat dissipation device.

[0029] The vehicle provided by the present invention can improve heat dissipation efficiency, extend service life, reduce wind resistance of the entire vehicle, and save fuel consumption due to the adoption of the above-mentioned heat dissipation device. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 paying creative work.

[0031] Figure 1 A schematic diagram of the structure of the heat dissipation device provided in an embodiment of the present invention Figure 1 ; Figure 2 A schematic diagram of the structure of the heat dissipation device provided in an embodiment of the present invention Figure 2 (One of the side panels of the heat sink housing is not shown in the figure); Figure 3 for Figure 2 A schematic diagram of the structure from another angle; Figure 4 for Figure 2 Left view of .

[0032] In the figure: 1. heat dissipation housing; 10. heat dissipation air duct; 11. first side panel; 111. air inlet; 12. second side panel; 121. air outlet; 122. water inlet; 123. water outlet; 13. blockage; 2. Filter components; 3. Fan; 4. Radiator body; 41. Primary radiator plate; 42. Secondary radiator plate; 43. Thirdary radiator plate; 44. Fourthary radiator plate; 51. A first heat sink group; 52. A second heat sink group; 53. A third heat sink group. DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] The automotive cooling system is an integral part of the normal operation of the automotive engine and related components. Its main function is to control the temperature of the engine and its related components (such as the transmission, battery, etc.) to prevent performance degradation or failure due to overheating.

[0035] The automobile cooling system consists of a water pump, radiator, cooling fan, thermostat, reservoir, water jacket in the engine block and cylinder head, and other ancillary devices. The working principle of the cooling system is to circulate the liquid through the pipes and passages in the engine. After the coolant flows through the engine, it flows to the radiator, and the heat in the liquid is dissipated into the air through the radiator.

[0036] The radiator is usually located at the front of the car and is exposed to the outside air. The coolant flows out of the engine and is pumped into the radiator through a water pump, where it releases heat to the outside air through a fan or natural convection, and then returns to the engine to continue the cycle.

[0037] The radiator consists of a water inlet chamber, a water outlet chamber and a radiator core. The radiator core consists of many thin cooling tubes and fins. Most cooling tubes have an oblate cross-section to reduce air resistance and increase heat transfer area. Cooling tubes and fins are mostly made of aluminum and are installed perpendicular to the direction of air flow. The coolant flows in the radiator core and the air passes outside the radiator core. The hot coolant cools down due to heat dissipation to the air, and the cold air heats up due to absorbing the heat dissipated by the coolant, so the radiator is a heat exchanger.

[0038] The traditional radiator is located behind the fan and is exposed to the outside, requiring wind to physically dissipate heat. Under harsh working conditions, the radiator is easily damaged or blocked.

[0039] For example, due to the small gap between the flat tubes and fins of the radiator, impurities such as catkins and insects can easily clog the radiator. If it is not disassembled and cleaned in time, it will affect the heat dissipation capacity of the entire vehicle, the engine water temperature will overheat, the engine self-protection function will be activated, and the entire vehicle will lose power, seriously affecting driving safety and driving experience.

[0040] For example, since the flat tubes and fins of the radiator are made of aluminum, in order to improve the heat dissipation capacity, the tube walls are relatively thin and can be easily damaged by external impact. Once damaged, the coolant will leak out, the cooling system will lose the heat conduction of the coolant, the powertrain of the entire vehicle will rapidly become hot, and the entire vehicle will no longer be able to be used.

[0041] Please also read Figures 1 to 4 , the heat dissipation device provided by the present invention is now described. The heat dissipation device includes a heat dissipation shell 1, a filter assembly 2, a fan 3 and a radiator body 4. The inner cavity of the heat dissipation shell 1 forms a heat dissipation duct 10 extending in the up-down direction; the bottom of the heat dissipation shell 1 is provided with an air inlet 111, and the top is provided with an air outlet 121, and the air inlet 111 and the air outlet 121 are both connected to the heat dissipation duct 10; the filter assembly 2 is arranged at the air inlet 111 and covers the air inlet 111; the fan 3 is arranged at the air outlet 121 and covers the air outlet 121; the radiator body 4 is arranged in the heat dissipation duct 10; the radiator body 4 has a water inlet 122 and a water outlet 123, and the water inlet 122 and the water outlet 123 extend to the heat dissipation shell 1.

[0042] It should be noted that the up and down direction defined in the embodiment of the present invention refers to the up and down direction of the vehicle body, rather than the vertical direction. The air inlet 111 is at the bottom and the air outlet 121 is at the top, which conforms to the natural upward flow trend of cold air.

[0043] The heat dissipation housing 1 is installed in front of the engine. The heat dissipation housing 1 is preferably a hexahedral structure, and its inner cavity is a heat dissipation air duct 10, and the height of the heat dissipation air duct 10 is greater than the length and width, which can increase the ventilation path and improve the air intake speed and air intake volume.

[0044] The air inlet 111 is arranged at the bottom of the heat dissipation shell 1, and the air outlet 121 is arranged at the top of the heat dissipation shell 1. It can be understood that the air inlet 111 is arranged on the bottom plate of the heat dissipation shell 1, and the air outlet 121 is arranged on the top plate of the heat dissipation shell 1, or the air inlet 111 is arranged at the bottom of one of the side panels of the heat dissipation shell 1, and the air outlet 121 is arranged at the top of one of the side panels of the heat dissipation shell 1. This embodiment does not limit the specific directions of the air inlet 111 and the air outlet 121, as long as it conforms to the airflow flow mode of lower air inlet and upper air outlet.

[0045] It should be noted that the air inlet 111 must be connected with the opening on the front bumper. In other words, an opening is required on the front bumper, and the opening corresponds to the air inlet 111. The outside air enters the air inlet 111 through the above opening and passes through the heat dissipation duct 10. Since the air inlet 111 is arranged at the bottom of the heat dissipation shell 1, it is not necessary to cover the entire heat dissipation shell 1, so the opening area of ​​the front bumper is not required, and the opening position can be lowered, thereby reducing the wind resistance of the whole vehicle and saving fuel consumption.

[0046] The filter assembly 2 is arranged at the air inlet 111 and covers the air inlet 111. The filter assembly 2 can adopt a motor centrifugal blade structure for active filtering, or a fixed cyclone blade structure for filtering. The motor centrifugal blade structure can reduce the workload of the fan 3 and improve the filtering efficiency; the fixed cyclone blade structure can reduce the cost of the whole vehicle. Of course, the filter assembly 2 can also adopt a filter structure with blades commonly used in the prior art. This embodiment does not limit the specific structure of the filter assembly 2. As long as it can roughly filter the airflow entering the heat dissipation duct 10, impurities such as catkins and insects can be filtered out.

[0047] The fan 3 is arranged at the air outlet 121 and covers the air outlet 121. The fan 3 is used to increase the wind speed and air volume of the airflow passing through the heat dissipation duct 10, so that the cold air passes through the heat dissipation channel quickly and in large quantities to exchange heat with the radiator body 4. Specifically, the fan 3 is a motor fan 3, which is electrically connected to the vehicle electronic control unit (ECU: Electronic Control Unit), and the electronic control unit controls the duty cycle of the fan 3. Preferably, at least two fans 3 are provided in this embodiment. On the one hand, multiple fans 3 can make the ventilation of the heat dissipation duct 10 more uniform. On the other hand, if one of the fans 3 is damaged, it will not affect the ventilation of the heat dissipation duct 10.

[0048] In an environment with high outside temperature, the fan 3 is turned on to speed up the flow rate and flow of cold air through the heat dissipation duct 10, thereby improving the heat dissipation efficiency of the radiator body 4; in an environment with low outside temperature, the fan 3 is turned off, and the ventilation volume of the heat dissipation duct 10 drops sharply, which can reduce the heat dissipation capacity and increase the cabin temperature.

[0049] The radiator body 4 is used to circulate the coolant, and the water inlet 122 and the water outlet 123 of the radiator body 4 are respectively connected to the engine water jacket. After the coolant flows out of the engine water jacket, it is sent to the water inlet 122 through the water pump, flows through the radiator body 4, and then enters the engine water jacket again through the water outlet 123. When the coolant flows through the radiator body 4, the cold air of the heat dissipation duct 10 also passes through the radiator body 4. The hot coolant dissipates heat to the heat dissipation duct 10 and becomes cold, and the cold air absorbs the heat dissipated by the coolant and heats up. The cold air takes away the heat of the coolant, thereby dissipating the heat.

[0050] Since the radiator body 4 is disposed in the heat dissipation duct 10 and is wrapped by the heat dissipation shell 1 , the service life and usage scenarios of the radiator body 4 can be improved.

[0051] Compared with the prior art, the heat dissipation device provided by the present invention has an inner cavity of the heat dissipation housing 1 forming a heat dissipation air duct 10, and the filter assembly 2 covers the air inlet 111 of the heat dissipation air duct 10, which can filter out impurities such as catkins, insects, sand and stones, so that the air entering the heat dissipation air duct 10 is clean air, and the radiator body 4 located in the heat dissipation air duct 10 is prevented from being blocked or damaged by collision, thereby ensuring the normal operation of the heat dissipation device and prolonging the service life of the heat dissipation device; The fan 3 covers the air outlet 121 of the heat dissipation duct 10. The heat dissipation housing 1, the filter assembly 2 and the fan 3 are combined to form a relatively closed space in the heat dissipation duct 10, so as to increase the wind speed and air volume passing through the heat dissipation duct 10 and improve the heat dissipation efficiency. Since the air inlet 111 is arranged at the bottom of the heat dissipation housing 1 and does not need to cover the entire heat dissipation housing 1, the opening area requirement for the front bumper is not high, and the opening position can be lowered, thereby reducing the wind resistance of the whole vehicle and saving fuel consumption.

[0052] In some embodiments, the heat sink body 4 may be configured as follows: Figure 2 , Figure 3 and Figure 4 The structure shown, see Figure 2 , Figure 3 and Figure 4 The radiator body 4 includes a plurality of radiating plates which are sequentially distributed in the up-down direction; each radiating plate is provided with a serpentine flow channel; and the four peripheral edges of each radiating plate are connected to the inner peripheral wall of the radiating air duct 10 .

[0053] Since the heat dissipation duct 10 extends in the vertical direction, its height is greater than its length and width. In order to increase the heat dissipation area of ​​the radiator body 4 and improve the utilization rate of the cold air, multiple heat dissipation plates are provided and distributed in sequence in the vertical direction. It should be noted that a liquid infusion pipeline is connected between each two adjacent heat dissipation plates.

[0054] The heat sink can be considered to be formed by flat tubes distributed in a serpentine shape. The inner cavity of the serpentine flat tube is a serpentine flow channel. Fins are distributed on the outer wall of the flat tube. The coolant passes through the flat tube and can dissipate heat to the outside through the fins. The serpentine flat tube also has a ventilation gap, and air passes through the ventilation gap to take away the heat dissipated by the fins.

[0055] The heat sink can also be regarded as a flat plate structure, with serpentine channels distributed inside the flat plate structure. When the coolant passes through the serpentine channels, the heat is dissipated outward through the flat plate structure. There are also strip-shaped air holes on the flat plate structure, and air passes through the strip-shaped air holes to take away the heat from the heat sink.

[0056] It should be noted that, whether it is a serpentine flat tube or a flat plate structure, the heat dissipation method for the coolant is an existing conventional technology. Therefore, this embodiment does not specifically describe the structure of the heat dissipation plate, as long as the coolant can flow in a serpentine shape inside it. The serpentine flow channel can increase the flow path of the coolant, thereby improving its heat dissipation efficiency.

[0057] Although the present embodiment does not limit the specific structure of the heat sink, it does limit the specific position of the heat sink and requires that the four edges of the heat sink be connected to the inner wall of the heat dissipation duct 10. That is to say, in the direction of air flow, each heat sink is horizontally filled in the heat dissipation duct 10 to fully utilize the space of the heat dissipation duct 10, increase the heat dissipation area of ​​the heat sink, and prevent the cold air from being lost without passing through the heat sink.

[0058] In some embodiments, the plurality of heat sinks may be used as follows: Figure 2 , Figure 3 and Figure 4 The structure shown, see Figure 2 , Figure 3 and Figure 4 , each heat sink is tilted in the up and down direction.

[0059] It should be noted that the inclination directions of the heat sinks can be exactly the same or different, and similarly, the inclination angles can be exactly the same or different. The inclination directions and inclination angles of the heat sinks depend on the height of the heat dissipation duct 10 and the positions of the air inlet 111 and the air outlet 121.

[0060] Compared with vertically arranging the multiple heat sinks in the up and down directions, the area of ​​the heat sinks can be increased by tilting the heat sinks, that is, the area for the coolant to flow is increased, the heat dissipation efficiency is improved, and the width of the heat sink housing 1 can be correspondingly reduced, thereby reducing the space occupied by the heat sink.

[0061] In some embodiments, the heat dissipation housing 1 may be Figure 1 , Figure 2 and Figure 3 The structure shown, see Figure 1 , Figure 2 and Figure 3 The heat dissipation housing 1 has a first side plate 11 and a second side plate 12 which are arranged opposite to each other and parallel to the up-down direction; the air inlet 111 is arranged at the bottom of the first side plate 11, and the air outlet 121 is arranged at the top of the second side plate 12; the water inlet 122 and the water outlet 123 are both arranged on the second side plate 12.

[0062] In the front-rear direction of the vehicle body, the first side panel 11 is located in front of the second side panel 12 , and the first side panel 11 faces the front bumper, while the second side panel 12 faces the engine.

[0063] The air inlet 111 is arranged at the bottom of the first side panel 11, that is, the air inlet direction of the air inlet 111 is the front-to-rear direction of the vehicle body, corresponding to the front-to-rear opening on the front bumper. Since the air inlet 111 is arranged at the bottom of the first side panel 11, it is not necessary to cover the entire first side panel 11, so the opening area of ​​the front bumper is not required to be high, and the opening position can be lowered to increase the design diversity of the front bumper, and the wind resistance of the whole vehicle can be reduced to save fuel consumption.

[0064] The air outlet 121 is arranged at the top of the second side panel 12 and is also arranged along the front-rear direction of the vehicle body. On the one hand, it is convenient for integrating and installing the fan 3. On the other hand, it can increase the air flow path of the heat dissipation duct 10, and the rearward air outlet will not be blocked by the engine compartment cover, resulting in poor air outlet.

[0065] The water inlet 122 and the water outlet 123 are both arranged on the second side plate 12, facing the engine, so as to be connected with the engine water jacket, so as to optimize the distribution path of the pipeline connecting the engine water jacket and the heat dissipation device.

[0066] In some embodiments, the plurality of heat sinks may be used as follows: Figure 2 , Figure 3 and Figure 4 The structure shown, see Figure 2 , Figure 3 and Figure 4 The heat sink near the air inlet 111 is defined as a first-level heat sink 41 , the lower end of the first-level heat sink 41 is connected to the first side plate 11 and is located above the air inlet 111 , and the upper end of the first-level heat sink 41 extends obliquely upward and is connected to the second side plate 12 .

[0067] If the first side panel 11 is limited to be located in front of the second side panel 12, then the first-level heat sink 41 is tilted upward from front to back, and the lower end of the first-level heat sink 41 is located above the air inlet 111. Then, in the air inlet direction of the air inlet 111, the first-level heat sink 41 is not opposite to the air inlet 111, so that the first-level heat sink 41 can avoid the filter component 2 to enter the heat dissipation air duct 10 without blocking the wind or changing the wind direction.

[0068] Specifically, the external cold air passes through the filter assembly 2 and enters the heat dissipation duct 10 backwards. Since there is no obstruction behind the air inlet 111 except the second side panel 12, the cold air flows upwards under the action of the exhaust of the fan 3. Even if part of the cold air hits the second side panel 12 and flows in the opposite direction, it will still flow upwards under the action of the exhaust of the fan 3.

[0069] Since there is no heat sink behind the air inlet 111, a large amount of cold air can quickly enter the heat dissipation duct 10, and the cold air flows upward without being redirected to flow back. On the one hand, it avoids impact on the filter component 2, and on the other hand, it can also avoid airflow confusion and turbulence.

[0070] It should be noted that the water inlet 122 is connected to the primary heat sink 41. Specifically, a water pipeline is provided on the inner wall of the closed shell, and the water pipeline connects the water inlet 122 and the upper corner of the primary heat sink 41. Since the water inlet 122 is provided on the second side plate 12, and the upper end of the primary heat sink 41 is connected to the second side plate 12, the upper corner of the primary heat sink 41 is first filled with coolant. The primary heat sink 41 can be provided with coolant at another corner of the upper end, or at a corner of the lower end.

[0071] In some embodiments, the plurality of heat sinks may be used as follows: Figure 2 , Figure 3 and Figure 4 The structure shown, see Figure 2 , Figure 3 and Figure 4 The heat sink located above the primary heat sink 41 is defined as the secondary heat sink 42. The lower end of the secondary heat sink 42 is connected to the first side plate 11, and the upper end of the secondary heat sink 42 extends obliquely upward and is connected to the second side plate 12. The liquid inlet end of the secondary heat sink 42 is connected to the liquid outlet end of the primary heat sink 41 through a water pipeline.

[0072] The primary heat sink 41 is tilted upward from front to back, and its upper end is connected to the water inlet 122. In order to ensure that the secondary heat sink 42 is connected to the primary heat sink 41, there are two distribution modes of the secondary heat sink 42, one is tilted upward from back to front, and the other is tilted upward from front to back. For the first mode, since the primary heat sink 41 and the secondary heat sink 42 have opposite inclination directions, the angle between the two is large, resulting in a large space occupied by the two. In this way, the number of heat sinks must be reduced, that is, the heat dissipation area is reduced, thereby reducing the heat dissipation efficiency.

[0073] Therefore, this embodiment adopts the second distribution method, that is, the secondary heat sink 42 is inclined upward from front to back, which is the same as the inclination direction of the primary heat sink 41. Preferably, the angles between the two and the up and down directions are also the same.

[0074] The secondary heat sink 42 adopts the above-mentioned arrangement method, which can reduce the space occupied by the primary heat sink 41 and the secondary heat sink 42 in the lower part of the heat dissipation duct 10, thereby providing space for arranging multiple heat sinks above the secondary heat sink 42, thereby making full use of the inner cavity structure of the heat dissipation shell 1; and after the airflow passes through the primary heat sink 41, it flows for a distance and then enters the secondary heat sink 42. During the flow, it can also radiate heat outward through the heat dissipation shell 1, thereby reducing the temperature of the airflow passing through the secondary heat sink 42.

[0075] It should be noted that, in order to optimize the distribution of the water delivery pipeline, the water inlet end of the secondary radiator 42 corresponds to the water outlet end of the primary radiator 41. If the water outlet end of the primary radiator 41 is the upper end, then the water inlet end of the secondary radiator 42 is the upper end; if the water outlet end of the primary radiator 41 is the lower end, then the water inlet end of the secondary radiator 42 is the lower end.

[0076] Since the secondary heat sink 42 and the primary heat sink 41 have the same inclination direction, in order to improve the heat dissipation effect of the space between the secondary heat sink 42 and the primary heat sink 41, in some embodiments, the first side plate 11 may also be used as follows: Figure 2 and Figure 4 The structure shown, see Figure 2 and Figure 4 A first heat sink group 51 is disposed on the outer wall of the first side plate 11 , and the first heat sink group 51 is located between the lower end of the primary heat sink 41 and the lower end of the secondary heat sink 42 .

[0077] The first heat sink group 51 includes a plurality of heat dissipation teeth, one end of each heat dissipation tooth is connected to the outer wall of the first side plate 11, and the other end extends to the outside of the first side plate 11, and there is a heat dissipation gap between each two adjacent heat dissipation teeth. Preferably, the plurality of heat dissipation teeth are distributed in parallel, and each heat dissipation tooth extends in the up-down direction.

[0078] The heat in the heat dissipation duct 10 is transferred to each heat dissipation tooth through the first side plate 11 , and the heat is dissipated to the outside through each heat dissipation tooth to reduce the air flow temperature in the heat dissipation duct 10 .

[0079] The first heat sink group 51 can absorb heat in the heat dissipation duct 10. The first heat sink group 51 is located between the first-level heat sink and the second-level heat sink, and in particular can absorb the heat of the air flow after passing through the first-level heat sink 41 to reduce the temperature of the air flow passing through the second-level heat sink 42 and increase the heat exchange performance of the second-level heat sink 42.

[0080] In addition, a second heat sink group 52 is disposed on the outer wall of the second side plate 12 , and the second heat sink group 52 is located below the air outlet 121 .

[0081] The structure of the second heat sink group 52 is the same as that of the first heat sink group 51 , and also includes a plurality of heat sink teeth that are spaced apart and distributed in parallel, except that the height of the heat sink teeth of the second heat sink group 52 is greater than that of the heat sink teeth of the first heat sink group 51 .

[0082] The function of the second heat sink group 52 is the same as that of the first heat sink group 51 , which is to absorb the heat in the heat dissipation duct 10 and reduce the ambient temperature of the heat dissipation duct 10 , thereby improving the heat exchange efficiency of the primary heat sink 41 and the secondary heat sink 42 .

[0083] Since the heat sink is installed in the engine compartment, the height of the heat sink housing 1 cannot be too high due to the installation position and the adaptation of the engine water jacket. Therefore, the number of heat sinks needs to be reasonably arranged in the heat sink duct 10 of limited height. If the number of heat sinks is too large, the overall cost of the heat sink will be high and the coolant flow rate will be large; if the number of heat sinks is too small, the space of the heat sink duct 10 cannot be fully utilized and the heat exchange efficiency will be low.

[0084] In order to solve the above problems, in some embodiments, the above multiple heat sinks can also be used as follows Figure 2 , Figure 3 and Figure 4 The structure shown, see Figure 2 , Figure 3 and Figure 4 The number of heat sinks is four, and the heat sink located above the secondary heat sink 42 is defined as the third-level heat sink 43, and the heat sink located above the third-level heat sink 43 is defined as the fourth-level heat sink 44.

[0085] Among them, the lower end of the tertiary heat sink 43 is connected to the upper end of the secondary heat sink 42 and is located below the air outlet 121, and the upper end of the tertiary heat sink 43 extends obliquely upward and is connected to the first side panel 11; the lower end of the fourth heat sink 44 is connected to the first side panel 11 and is located above the upper end of the tertiary heat sink 43, and the upper end of the fourth heat sink 44 extends obliquely upward and is connected to the second side panel 12, and is located above the air outlet 121.

[0086] There are four heat sinks, the first-level heat sink 41 and the second-level heat sink 42 are located in the lower half of the heat dissipation duct 10, and the third-level heat sink 43 and the fourth-level heat sink 44 are located in the upper half of the heat dissipation duct 10. On the basis of making full use of the space of the heat dissipation duct 10, the number of heat sinks is optimized, ensuring the heat exchange efficiency of the coolant while reducing the cost of the heat exchange device.

[0087] In addition, the third-stage heat sink 43 and the fourth-stage heat sink 44 are arranged to surround the upper and lower parts of the air outlet 121, avoiding the position of the air outlet 121, and will not affect the air exhaust of the fan 3, nor will they block the airflow and cause turbulence.

[0088] Specifically, the third-stage heat sink 43 is tilted upward from back to front, and its tilting direction is opposite to the tilting direction of the second-stage heat sink 42, and the two are set at an angle. The third-stage heat sink 43 adopts the above-mentioned setting method. On the one hand, its lower end can be directly connected to the upper end of the second-stage heat sink 42, and there is no need to set a water pipeline, or even if there is a water pipeline, its path and length are short; on the other hand, under the premise of avoiding the air outlet 121, compared with being set parallel to the second-stage heat sink 42, the spacing distance between the second-stage heat sink 42 can be increased, and the spacing distance with the fourth-stage heat sink 44 can be optimized.

[0089] The fourth-stage heat sink 44 is tilted upward from front to back, opposite to the tilt direction of the third-stage heat sink 43. The two are arranged at an angle and are diffusely arranged above and below the air outlet 121 to increase the air outlet space so that the hot air can be quickly drawn out by the fan 3 to avoid hot air accumulation.

[0090] Preferably, see Figure 2 and Figure 4 On the basis of the above embodiment, a third heat sink group 53 is provided on the outer wall of the first side plate 11, and the third heat sink group 53 is located between the upper end of the third heat sink 43 and the lower end of the fourth heat sink 44, and the third heat sink group 53 corresponds to the air inlet end of the fan 3.

[0091] The structure of the third heat sink group 53 is the same as that of the first heat sink group 51, and also includes a plurality of heat sink teeth that are spaced apart and distributed in parallel. The heat in the heat dissipation duct 10 is transferred to each heat dissipation tooth through the first side plate 11, and the heat is dissipated to the outside through each heat dissipation tooth to reduce the air flow temperature in the heat dissipation duct 10.

[0092] The third heat sink group 53 can absorb the heat in the heat dissipation duct 10. The third heat sink group 53 is located between the third heat sink and the fourth heat sink, and can especially absorb the heat of the air flow after passing through the third heat sink 43 to reduce the ambient temperature of the upper half of the heat dissipation duct 10 and improve the heat exchange efficiency of the third heat sink 43 and the fourth heat sink 44.

[0093] In some embodiments, the heat dissipation device may also be used as follows: Figure 2 The structure shown, see Figure 2 A through hole is provided on the bottom plate of the heat dissipation housing 1, and a sealing plug 13 is provided in the through hole.

[0094] It should be noted that even if the air inlet 111 is provided with a filter assembly 2 , some fine particles and water droplets will still enter the heat dissipation duct 10 through the filter assembly 2 and accumulate on the bottom plate of the heat dissipation housing 1 under the action of gravity.

[0095] The sealing plug 13 functions similarly to a one-way valve. By opening the sealing plug 13 , impurities accumulated on the bottom plate of the heat dissipation housing 1 can be removed through the through hole to ensure that the heat dissipation air duct 10 is clean and tidy, thereby extending the service life of the heat dissipation device.

[0096] Based on the same inventive concept, an embodiment of the present application also provides a vehicle, comprising the above-mentioned heat dissipation device.

[0097] The vehicle provided by the present invention can improve heat dissipation efficiency, extend service life, reduce wind resistance of the entire vehicle, and save fuel consumption due to the adoption of the above-mentioned heat dissipation device.

[0098] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heat dissipation device, characterized in that: include: A heat dissipation housing (1), wherein the inner cavity forms a heat dissipation air duct (10) extending in the up-down direction; the heat dissipation housing (1) is provided with an air inlet (111) at the bottom and an air outlet (121) at the top, and the air inlet (111) and the air outlet (121) are both in communication with the heat dissipation air duct (10); A filter assembly (2) disposed at the air inlet (111) and covering the air inlet (111); a fan (3), arranged at the air outlet (121) and covering the air outlet (121); and The radiator body (4) is arranged in the heat dissipation air duct (10); the radiator body (4) has a water inlet (122) and a water outlet (123), and the water inlet (122) and the water outlet (123) both extend to the heat dissipation housing (1).

2. The heat dissipation device according to claim 1, characterized in that: The radiator body (4) comprises: A plurality of heat dissipation plates are sequentially distributed in the up-down direction; each of the heat dissipation plates is provided with a serpentine flow channel; and the four peripheral edges of each of the heat dissipation plates are connected to the inner peripheral wall of the heat dissipation air channel (10).

3. The heat dissipation device according to claim 2, characterized in that: Each of the heat dissipation plates is arranged to be inclined in the up-down direction.

4. The heat dissipation device according to claim 2, characterized in that: The heat dissipation housing (1) comprises a first side plate (11) and a second side plate (12) which are arranged opposite to each other and parallel to the up-down direction; the air inlet (111) is arranged at the bottom of the first side plate (11), and the air outlet (121) is arranged at the top of the second side plate (12); and the water inlet (122) and the water outlet (123) are both arranged on the second side plate (12).

5. The heat dissipation device according to claim 4, characterized in that: The heat dissipation plate close to the air inlet (111) is defined as a primary heat dissipation plate (41), the lower end of the primary heat dissipation plate (41) is connected to the first side plate (11) and is located above the air inlet (111), and the upper end of the primary heat dissipation plate (41) extends obliquely upward and is connected to the second side plate (12).

6. The heat dissipation device according to claim 5, characterized in that: The heat dissipation plate located above the primary heat dissipation plate (41) is defined as a secondary heat dissipation plate (42), the lower end of the secondary heat dissipation plate (42) is connected to the first side plate (11), and the upper end of the secondary heat dissipation plate (42) extends obliquely upward and is connected to the second side plate (12); The liquid inlet end of the secondary heat sink (42) and the liquid outlet end of the primary heat sink (41) are connected via a water delivery pipeline.

7. The heat dissipation device according to claim 6, characterized in that: The number of the heat dissipation plates is four, and the heat dissipation plate located above the secondary heat dissipation plate (42) is defined as a tertiary heat dissipation plate (43), and the heat dissipation plate located above the tertiary heat dissipation plate (43) is defined as a quaternary heat dissipation plate (44); The lower end of the third-stage heat dissipation plate (43) is connected to the upper end of the second-stage heat dissipation plate (42) and is located below the air outlet (121); the upper end of the third-stage heat dissipation plate (43) extends obliquely upward and is connected to the first side plate (11); The lower end of the fourth-stage heat dissipation plate (44) is connected to the first side plate (11) and is located above the upper end of the third-stage heat dissipation plate (43); the upper end of the fourth-stage heat dissipation plate (44) extends obliquely upward to connect to the second side plate (12) and is located above the air outlet (121).

8. The heat dissipation device according to claim 6, characterized in that: A first heat sink group (51) is provided on the outer wall of the first side plate (11), and the first heat sink group (51) is located between the upper end of the first heat sink (41) and the lower end of the second heat sink (42).

9. The heat dissipation device according to claim 8, characterized in that: A second heat sink group (52) is provided on the outer wall of the second side plate (12), and the second heat sink group (52) is located below the air outlet (121).

10. The heat dissipation device according to claim 7, characterized in that: A third heat sink group (53) is provided on the outer wall of the first side plate (11); the third heat sink group (53) is located between the upper end of the third-stage heat sink (43) and the lower end of the fourth-stage heat sink (44); and the third heat sink group (53) corresponds exactly to the air inlet end of the fan (3).

11. The heat dissipation device according to claim 1, characterized in that: A through hole is provided on the bottom plate of the heat dissipation housing (1), and a sealing plug (13) is provided in the through hole.

12. A vehicle, characterized in that: A heat dissipation device comprising any one of claims 1-11.

Images