Vehicle ventilation cooling system and vehicle

Abstract

The utility model provides a vehicle ventilation cooling system and a vehicle, the vehicle ventilation cooling system comprises a first air duct, a second air duct, an air blower and an electric control cabinet, the first air duct is located between the air blower and the electric control cabinet, two ends of the first air duct are communicated with the air blower and the electric control cabinet, one end of the second air duct is communicated with outside air, and the other end of the second air duct is communicated with the electric control cabinet. The electric control cabinet is placed on the vehicle frame, the first air channel is fixedly connected to the vehicle frame through a first connecting assembly, the second air channel is fixedly connected to the vehicle frame through a second connecting assembly, and the first air channel and the second air channel are relatively and fixedly connected through a third connecting assembly. According to the vehicle ventilation cooling system and the vehicle, the installation stability of the first air channel and the second air channel is enhanced through the first connecting assembly and the second connecting assembly, and the damping effect is achieved; the third connecting assembly guarantees a safety gap between the first air duct and the second air duct, and collision between the first air duct and the second air duct caused by vibration of the vehicle during operation is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a vehicle ventilation and cooling system and a vehicle. Background Art

[0002] Mining dump trucks in engineering vehicles are divided into mechanical transmission mining dump trucks and electric transmission mining dump trucks according to different transmission modes. Among them, large-tonnage mining dump trucks with a load of more than 100 tons are mainly electric transmission. Electric transmission mining dump trucks have many advantages such as safety and reliability, low failure rate, low maintenance cost, constant power control, and stepless speed regulation. However, the drive motor will generate a lot of heat during operation. If the heat generated cannot be dissipated in time, the consequences will be disastrous. As part of the ventilation system of the electric transmission dump truck, the air duct is used to dissipate heat for the drive motor.

[0003] In the prior art, such as Figure 1 As shown, the ventilation and cooling system of the mining dump truck includes an upper air duct 1, a front air duct 6, a blower 8, an electric control cabinet 4, a main generator 7, a rear air duct (not shown) and a rear axle housing (not shown); wherein, the front air duct 6 is arranged between the electric control cabinet 4 and the main generator 7, the rear air duct is arranged between the blower 8 and the rear axle housing, and the main generator 7 is connected to the blower 8; the upper air duct 1 is located above the front air duct 6 and is connected to the blower 8; the cooling air enters from the electric control cabinet 4, passes through the front air duct 6, the blower 8, the rear air duct in sequence and flows to the rear axle housing, and the heat is dissipated to the atmosphere after the traction motor is cooled; when the mining truck works for a long time, the electric control cabinet 4 generates a huge amount of heat, and the cooling air volume is difficult to meet the demand. A large amount of air volume can be effectively supplemented through the upper air duct 1, that is, the cooling air enters the upper air duct 1 and passes through the blower 8 and the rear air duct in sequence and flows to the rear axle housing. The front air duct 6 of the engineering vehicle is connected between the electric control cabinet 4 and the blower 8, and the upper air duct 1 is located above the front air duct 6 and connected to the blower 8, which is easy to install and has a simple connection structure. However, the connection points at both ends of the upper air duct 1 and the front air duct 6 are fixed points, and both the upper air duct 1 and the front air duct 6 are relatively long. The middle section is easy to collide with each other or interfere with surrounding parts (such as the frame) during the vibration of the vehicle during operation, causing damage, and the fixed points are also easy to loosen or damage. Utility Model Content

[0004] The utility model aims to provide a vehicle ventilation and cooling system and a vehicle, so as to solve the problem that the connection is not firm and large vibration is easily generated, thus causing the air duct to be damaged.

[0005] The utility model provides a vehicle ventilation and cooling system, comprising a first air duct, a second air duct, a blower and an electric control cabinet, wherein the first air duct is located between the blower and the electric control cabinet, the air inlet of the first air duct is connected to the electric control cabinet, the air outlet of the first air duct is connected to the blower, the air inlet of the second air duct is connected to the outside air, the air outlet of the second air duct is connected to the blower for supplementing the air volume, the electric control cabinet is placed on a vehicle frame, the first air duct is fixedly connected to the vehicle frame via a first connecting component, the second air duct is fixedly connected to the vehicle frame via a second connecting component, and the first air duct and the second air duct are relatively fixedly connected via a third connecting component.

[0006] In one embodiment of the utility model, the first air duct includes a first air duct pipe and a first mounting plate and a second mounting plate fixedly connected to the first air duct pipe, the air inlet of the first air duct pipe is connected to the electric control cabinet, the air outlet of the first air duct pipe is connected to the blower, the first connecting assembly includes a first bracket and a second bracket, the first mounting plate is fixedly connected to the first bracket, the first bracket is fixedly connected to the frame, the second mounting plate is fixedly connected to the second bracket, and the second bracket is fixedly connected to the frame.

[0007] In one embodiment of the utility model, the first air duct also includes a first ventilation canvas tube, which can be stretched and deformed along its own length direction, and the air outlet of the first air duct tube is connected to the blower through the first ventilation canvas tube.

[0008] In an embodiment of the utility model, the vehicle ventilation and cooling system further comprises a throttling device, which is installed on a side of the first air duct pipe and is used to adjust the air volume entering the first air duct pipe.

[0009] In one embodiment of the utility model, the second air duct includes a second air duct pipe and a third mounting plate and a fourth mounting plate fixedly connected to the second air duct pipe, the third mounting plate is fixedly connected to the second connecting assembly, the second connecting assembly is fixedly connected to the frame, and the fourth mounting plate is fixedly connected to the fixed bracket on the first air duct pipe via the third connecting assembly.

[0010] In one embodiment of the utility model, the end of the second air duct pipe at the air outlet is fixed to the cross support through a shock absorber assembly, the cross support is fixedly connected to the electric control cabinet, and the second air duct pipe is fixedly connected to the frame through the second connecting assembly.

[0011] In one embodiment of the utility model, the second air duct further includes a second ventilation canvas tube, which can be stretched and deformed along its own length direction, and the air outlet of the second air duct tube is connected to the blower through the second ventilation canvas tube.

[0012] In one embodiment of the utility model, the first bracket is provided with a first mounting through hole, the second bracket is provided with a second mounting through hole, both of which are waist-shaped holes, the first bracket is fixedly connected to the first mounting plate through the first mounting through hole, the first bracket is fixedly connected to the frame through the first mounting through hole, the second bracket is fixedly connected to the second mounting plate through the second mounting through hole, and the second bracket is fixedly connected to the frame through the second mounting through hole; the second connecting component is provided with a third mounting through hole, the third mounting through hole is a waist-shaped hole, and the second connecting component is fixedly connected to the third mounting plate through the second mounting through hole; the third connecting component is provided with a circular through hole and a waist-shaped hole, the third connecting component is fixedly connected to the fixed bracket through the circular through hole, and the third connecting component is fixedly connected to the fourth mounting plate through the waist-shaped hole.

[0013] In one embodiment of the utility model, a first reinforcing steel plate is provided at the connection between the first mounting plate and the first air duct pipe, and a second reinforcing steel plate is provided at the connection between the second mounting plate and the first air duct pipe, and the first reinforcing steel plate and the second reinforcing steel plate are both used to ensure the strength and welding deformation of the first air duct pipe; a third reinforcing steel plate is provided at the connection between the third mounting plate and the second air duct pipe, and a fourth reinforcing steel plate is provided at the connection between the fourth mounting plate and the second air duct pipe, and the third reinforcing steel plate and the fourth reinforcing steel plate are both used to ensure the strength and welding deformation of the second air duct pipe.

[0014] The utility model also provides a vehicle, comprising the vehicle ventilation and cooling system as described above.

[0015] In the vehicle ventilation and cooling system and the vehicle of the utility model, the first air duct is fixedly connected to the vehicle frame by the first connecting component, and the second air duct is fixedly connected to the vehicle frame by the second connecting component, thereby enhancing the installation stability of the first air duct and the second air duct and achieving the shock absorption effect of the air duct; the first air duct and the second air duct are relatively fixedly connected by the third connecting component to ensure a safe gap between the first air duct and the second air duct, thereby preventing the first air duct and the second air duct from colliding due to the vibration of the vehicle during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The figure is a structural diagram of a ventilation and cooling system for a mining dump truck.

[0017] Figure 2 The figure is a schematic structural diagram of a vehicle according to an embodiment of the present utility model.

[0018] Figure 3 for Figure 2 A partial schematic diagram of a first perspective of a vehicle ventilation and cooling system of the vehicle shown being connected to the vehicle frame.

[0019] Figure 4 for Figure 2 A partial schematic diagram from a second perspective showing a vehicle ventilation and cooling system of the vehicle connected to the vehicle frame. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0021] The utility model provides a vehicle ventilation and cooling system, such as Figure 2 As shown, a vehicle ventilation and cooling system according to an embodiment includes a first air duct 11, a second air duct 12, a blower 13, an electric control cabinet 14, a rear air duct (not shown) and a rear axle housing (not shown). The first air duct 11 is located between the blower 13 and the electric control cabinet 14. The electric control cabinet 14 is provided with an air inlet for air intake and an air outlet for air exhaust. The air inlet of the first air duct 11 is connected with the air outlet of the electric control cabinet 14, and the air outlet of the first air duct 11 is connected with the blower 13; the second air duct 12 is located above the first air duct 11, the air inlet of the second air duct 12 is connected with the external air, and the air outlet of the second air duct 12 is connected with the blower 13. When the vehicle works for a long time, the electric control cabinet 14 generates a huge amount of heat, and the cooling air can hardly meet the demand. A large amount of air volume can be supplemented through the second air duct 12; the electric control cabinet 14 is placed on the frame 20, the first air duct 11 is fixedly connected to the frame 20 through the first connecting component 15, the second air duct 12 is fixedly connected to the frame 20 through the second connecting component 16, and the first air duct 11 and the second air duct 12 are relatively fixedly connected through the third connecting component 17. The air volume flows from the first air duct 11 and the second air duct 12 to the blower 13, enters the rear air duct through the blower 13, and then flows to the rear axle housing, dissipating the heat to the traction motor, and then the heat is dissipated into the atmosphere.

[0022] It should be noted that there are two main heating elements of the electric control cabinet 14, namely, the inverter (not shown) and the rectifier (not shown). The inverter does not dissipate much heat, and the small fan in the electric control cabinet 14 can meet the requirements. However, the rectifier generates a large amount of heat, and a dedicated ventilation and cooling system needs to be designed. The heat of the traction motor (not shown) also needs to be taken away for heat dissipation. According to the electric transmission structure and the requirements for heat dissipation equipment, the main design parts of the vehicle ventilation and cooling system of the utility model are: the first air duct 11 is mainly used for heat dissipation of the electric control cabinet 14, the second air duct 12 and the rear air duct are mainly used for heat dissipation of the rear axle housing traction motor, and the wind pressure power of the first air duct 11 and the second air duct 12 comes from the blower 13. The low-temperature air in the external environment is sucked into the blower 13 through the electric control cabinet 14 and the first air duct 11, and then blown into the rear axle housing through the rear air duct by the blower 13 to exchange heat with the traction motor, and the heat generated by the traction motor is brought to the atmosphere for heat dissipation. When the outdoor temperature is very high, the high-temperature air flowing out of the electrical control cabinet 14 has a very poor convective heat exchange effect on the traction motor in the rear axle housing. A certain amount of low-temperature air can be inhaled from the external environment through the second air duct 12, and mixed with the high-temperature air flowing out of the electrical control cabinet 14 before convective heat dissipation on the traction motor in the rear axle housing, thereby achieving heat dissipation of the traction motor.

[0023] In the vehicle ventilation and cooling system of the present invention, the first air duct 11 is fixedly connected to the frame 20 by the first connecting component 15, and the second air duct 12 is fixedly connected to the frame 20 by the second connecting component 16, thereby enhancing the installation stability of the first air duct 11 and the second air duct 12 and achieving the air duct shock absorption effect; the first air duct 11 and the second air duct 12 are relatively fixedly connected by the third connecting component 17, thereby ensuring a safe gap between the first air duct 11 and the second air duct 12 and preventing the first air duct 11 and the second air duct 12 from colliding due to the vibration of the vehicle during operation.

[0024] In this embodiment, Figure 3-4 As shown, the first air duct 11 includes a first air duct pipe 111 and a first mounting plate 112 and a second mounting plate 113 fixedly connected to the first air duct pipe 111; the air inlet of the first air duct pipe 111 is connected to the electric control cabinet 14, the air outlet of the first air duct pipe 111 is connected to the blower 13, the first connecting assembly 15 includes a first bracket 151 and a second bracket 152, the first mounting plate 112 is fixedly connected to the first bracket 151, the first bracket 151 is fixedly connected to the frame 20, the second mounting plate 113 is fixedly connected to the second bracket 152, and the second bracket 152 is fixedly connected to the frame 20. Specifically, the first air duct pipe 111 can be a rectangular pipe, the first mounting plate 112 and the second mounting plate 113 are respectively located on opposite sides of the first air duct pipe 111, the first bracket 151 and the second bracket 152 are respectively fixedly connected to the frame 20 through the first mounting plate 112 and the second mounting plate 113, so as to increase the installation stability of the first air duct 11 and achieve the effect of shock absorption.

[0025] In this embodiment, the first air duct 11 further includes a first ventilation canvas tube 114, which can be stretched and deformed along its own length direction, and the air outlet of the first air duct tube 111 is connected to the blower 13 through the first ventilation canvas tube 114. Specifically, the first ventilation canvas tube 114 can be a rectangular ventilation canvas tube corresponding to the first air duct tube 111. The first ventilation canvas tube 114 adopts canvas technology, can be stretched and bent, and is convenient for installation in a small space.

[0026] In another preferred embodiment, the vehicle ventilation and cooling system further includes a throttling device 18, which is installed on the side of the first air duct 111, and is used to supplement the air volume, and can dynamically adjust the air volume as needed, that is, in areas with high ambient temperature, the throttling device 18 is fully opened to increase the air flow entering the first air duct 111, thereby increasing the heat dissipation capacity of the vehicle ventilation and cooling system; in areas with low ambient temperature, the throttling device 18 can adjust the opening and closing degree as needed. The air volume flows from the throttling device 18 into the first air duct 111 and flows to the blower 13, and then enters the rear air duct from the blower 13 and flows to the rear axle housing, dissipating the heat to the traction motor before the heat is lost to the atmosphere.

[0027] In this embodiment, the second air duct 12 includes a second air duct pipe 121 and a third mounting plate 122 and a fourth mounting plate 123 fixedly connected to the second air duct pipe 121, the third mounting plate 122 is fixedly connected to the second connecting assembly 16, the second connecting assembly 16 is fixedly connected to the frame 20, and the first air duct pipe 111 and the second air duct pipe 121 are relatively fixedly connected through the third connecting assembly 17. Specifically, the second air duct pipe 121 can be a rectangular ventilation duct, and the third mounting plate 122 and the fourth mounting plate 123 are fixedly installed on opposite sides of the second air duct pipe 121. The third mounting plate 122 is fixedly connected to the frame 20 through the second connecting assembly 16. Among them, the second connecting assembly 16 can be a mounting bracket.

[0028] In this embodiment, in order to ensure smooth operation and reduce the impact of vibration on the vehicle ventilation and cooling system, the end of the second air duct pipe 121 at the air outlet is fixed to the cross support 19 through a shock absorber assembly, the cross support 19 is fixedly connected to the electric control cabinet 14, and the second air duct pipe 121 is fixedly connected to the frame 20 through the second connecting assembly 16.

[0029] In another preferred embodiment, the second air duct 12 further includes a second ventilation canvas tube 124, which can be stretched and deformed along its length direction, and the air outlet of the second air duct tube 121 is connected to the blower 13 through the second ventilation canvas tube 124. Specifically, the first ventilation canvas tube 114 can be a rectangular ventilation canvas tube corresponding to the first air duct tube 111. The second ventilation canvas tube 124 adopts canvas technology, can be stretched and bent, and is convenient for installation in a small space.

[0030] In this embodiment, a first reinforcing steel plate is provided at the connection between the first mounting plate 112 and the first air duct pipe 111, and a second reinforcing steel plate is provided at the connection between the second mounting plate 113 and the first air duct pipe 111. Both the first reinforcing steel plate and the second reinforcing steel plate are used to ensure the strength and welding deformation of the first air duct pipe 111; a third reinforcing steel plate is provided at the connection between the third mounting plate 122 and the second air duct pipe 121, and a fourth reinforcing steel plate is provided at the connection between the fourth mounting plate 123 and the second air duct pipe 121. Both the third reinforcing steel plate and the fourth reinforcing steel plate are used to ensure the strength and welding deformation of the second air duct pipe 121.

[0031] In this embodiment, the first bracket 151 is provided with a first mounting through hole, and the second bracket 152 is provided with a second mounting through hole. Both the first mounting through hole and the second mounting through hole are waist-shaped holes. The first bracket 151 is fixedly connected to the first mounting plate 112 through the first mounting through hole, that is, the fastener is placed in the first mounting through hole to achieve a fixed connection between the first bracket 151, the first mounting plate 112 and the frame; the first bracket 151 is fixedly connected to the frame 20 through the first mounting through hole, that is, the fastener is placed in the second mounting through hole to achieve a fixed connection between the second bracket 152, the second mounting plate 113 and the frame. The second connecting component 16 is provided with a third mounting through hole, which is a waist-shaped hole. The second connecting component 16 is fixedly connected to the third mounting plate 122 through the second mounting through hole, that is, the fastener is placed in the third mounting through hole to achieve the fixed connection between the second connecting component 16 and the third mounting plate 122; the third connecting component 17 is provided with a circular through hole and a waist-shaped hole. The third connecting component 17 is fixedly connected to the fixing bracket 115 through the circular through hole, and the third connecting component 17 is fixedly connected to the fourth mounting plate 123 through the waist-shaped hole. Specifically, the fastener can be a bolt or a screw.

[0032] Specifically, there are multiple first mounting through holes, a part of which is used to realize the fixed connection between the first bracket 151 and the frame 20, and another part is used to realize the fixed connection between the first bracket 151 and the first mounting plate 112. The first mounting through hole for connecting with the frame 20 can be set to have a length along the width direction of the first air duct tube 111, and the first mounting through hole for connecting with the first mounting plate 112 can be set to have a length along the thickness direction of the first air duct tube 111, so that when installing the first air duct 11 and the second air duct 12, the assembly error can be adjusted in multiple directions to a certain extent, making the installation more convenient. Similarly, there are multiple second mounting through holes, a part of which has a length along the width direction of the first air duct tube 111, and another part of which has a length along the thickness direction of the first air duct tube 111.

[0033] It can be understood that the positions of the first mounting through holes with lengths in two directions can be interchanged, that is, the first mounting through hole for connecting with the frame 20 has a length along the thickness direction of the first air duct tube 111, and the first mounting through hole for connecting with the first mounting plate 112 has a length along the width direction of the first air duct tube 111. Of course, the positions of the second mounting through holes with lengths in two directions can also be interchanged.

[0034] The third connecting component 17 is provided with a plurality of fourth mounting through holes, some of which are waist-shaped holes and the other are circular holes. The side connected to the first air duct 11 is provided with a circular through hole, and the side connected to the second air duct 12 is provided with a waist-shaped hole. The fastener is placed in the circular hole to realize the fixed connection between the third connecting component 17 and the fixing bracket 115, and the fastener is placed in the waist-shaped hole to realize the fixed connection between the third connecting component 17 and the fourth mounting plate 123. It should be noted that the waist-shaped hole in the fourth mounting through hole has a length along the thickness direction of the second air duct tube 121. On the one hand, it is ensured that during the operation of the vehicle, the first air duct 11 and the second air duct 12 can retain sufficient safety gaps. On the other hand, through the connection form of the third connecting component 17, the gap between the first air duct 11 and the second air duct 12 can be adjusted, so that the second air duct 12 is easy to install.

[0035] The utility model also provides a vehicle, comprising the above-mentioned vehicle ventilation and cooling system. The vehicle in this embodiment may be a mining dump truck.

[0036] In this document, unless otherwise specified or limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0037] In this document, the directions or positional relationships indicated by terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "vertical", and "horizontal" are based on the directions or positional relationships shown in the accompanying drawings and are only for the clarity of the technical solution and the convenience of description. Therefore, they should not be understood as limitations on the present invention.

[0038] In this document, the terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of elements other than those listed and may also include additional elements not expressly listed.

[0039] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A vehicle ventilation and cooling system, characterized in that: The invention comprises a first air duct (11), a second air duct (12), a blower (13) and an electric control cabinet (14); the first air duct (11) is located between the blower (13) and the electric control cabinet (14); the air inlet of the first air duct (11) is connected to the electric control cabinet (14); the air outlet of the first air duct (11) is connected to the blower (13); the air inlet of the second air duct (12) is connected to the outside air; the air outlet of the second air duct (12) is connected to the blower (13) for replenishing the air volume; the electric control cabinet (14) is placed on a vehicle frame; the first air duct (11) is fixedly connected to the vehicle frame via a first connecting assembly (15); the second air duct (12) is fixedly connected to the vehicle frame via a second connecting assembly (16); the first air duct (11) and the second air duct (12) are relatively fixedly connected via a third connecting assembly (17).

2. The vehicle ventilation cooling system according to claim 1, characterized in that: The first air duct (11) comprises a first air duct pipe (111) and a first mounting plate (112) and a second mounting plate (113) fixedly connected to the first air duct pipe (111); an air inlet of the first air duct pipe (111) is connected to the electric control cabinet (14); an air outlet of the first air duct pipe (111) is connected to the blower (13); the first connecting assembly (15) comprises a first bracket (151) and a second bracket (152); the first mounting plate (112) is fixedly connected to the first bracket (151); the first bracket (151) is fixedly connected to the vehicle frame; the second mounting plate (113) is fixedly connected to the second bracket (152); and the second bracket (152) is fixedly connected to the vehicle frame.

3. The vehicle ventilation cooling system according to claim 2, characterized in that: The first air duct (11) further comprises a first ventilation canvas tube (114), the first ventilation canvas tube (114) being capable of being stretched and deformed along its own length direction, and the air outlet of the first air duct tube (111) is connected to the blower (13) via the first ventilation canvas tube (114).

4. The vehicle ventilation cooling system according to claim 2, characterized in that: The vehicle ventilation and cooling system further comprises a throttling device (18), wherein the throttling device (18) is installed on a side of the first air duct pipe (111) and is used to adjust the air volume entering the first air duct pipe (111).

5. The vehicle ventilation cooling system according to claim 2, characterized in that: The second air duct (12) comprises a second air duct tube (121) and a third mounting plate (122) and a fourth mounting plate (123) fixedly connected to the second air duct tube (121); the third mounting plate (122) is fixedly connected to the second connecting assembly (16); the second connecting assembly (16) is fixedly connected to the vehicle frame; and the fourth mounting plate (123) is fixedly connected to a fixing bracket (115) on the first air duct tube (111) via the third connecting assembly (17).

6. The vehicle ventilation cooling system according to claim 5, characterized in that: The end of the second air duct pipe (121) at the air outlet is fixed to the transverse support (19) via a shock absorber assembly, the transverse support (19) is fixedly connected to the electric control cabinet (14), and the second air duct pipe (121) is fixedly connected to the vehicle frame via the second connection assembly (16).

7. The vehicle ventilation cooling system according to claim 5, characterized in that: The second air duct (12) further comprises a second ventilation canvas tube (124), the second ventilation canvas tube (124) being capable of being stretched and deformed along its own length direction, and the air outlet of the second air duct tube (121) is connected to the blower (13) via the second ventilation canvas tube (124).

8. The vehicle ventilation cooling system according to claim 5, characterized in that: The first bracket (151) is provided with a first mounting through hole, and the second bracket (152) is provided with a second mounting through hole, the first mounting through hole and the second mounting through hole are both waist-shaped holes, the first bracket (151) is fixedly connected to the first mounting plate (112) through the first mounting through hole, the first bracket (151) is fixedly connected to the vehicle frame through the first mounting through hole, the second bracket (152) is fixedly connected to the second mounting plate (113) through the second mounting through hole, and the second bracket (152) is fixedly connected to the second mounting plate (113) through the second mounting through hole. The second connecting component (16) is provided with a third connecting hole, the third connecting hole being a waist-shaped hole, and the second connecting component (16) is fixedly connected to the third mounting plate (122) via the second connecting hole; the third connecting component (17) is provided with a circular through hole and a waist-shaped hole, the third connecting component (17) is fixedly connected to the fixing bracket (115) via the circular through hole, and the third connecting component (17) is fixedly connected to the fourth mounting plate (123) via the waist-shaped hole.

9. The vehicle ventilation cooling system according to claim 5, characterized in that: A first reinforcing steel plate is provided at a connection between the first mounting plate (112) and the first air duct pipe (111), and a second reinforcing steel plate is provided at a connection between the second mounting plate (113) and the first air duct pipe (111); the first reinforcing steel plate and the second reinforcing steel plate are both used to ensure the strength and welding deformation of the first air duct pipe (111); a third reinforcing steel plate is provided at a connection between the third mounting plate (122) and the second air duct pipe (121), and a fourth reinforcing steel plate is provided at a connection between the fourth mounting plate (123) and the second air duct pipe (121); the third reinforcing steel plate and the fourth reinforcing steel plate are both used to ensure the strength and welding deformation of the second air duct pipe (121).

10. A vehicle, characterized in that: The vehicle ventilation and cooling system comprises the vehicle ventilation and cooling system as claimed in any one of claims 1 to 9.

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