All-terrain vehicle

Abstract

The all-terrain vehicle comprises a vehicle frame, a vehicle body covering part and an air conditioning system, the vehicle body covering part is connected with the vehicle frame, the vehicle body covering part and the vehicle frame jointly form a cabin, and the vehicle body covering part comprises a ceiling covering the top of the vehicle frame; the air conditioning system is at least partially arranged on the frame and at least used for supplying air to the cabin, the air conditioning system comprises a compressor, a condenser, an evaporator and an expansion valve, the condenser is communicated with the evaporator through the expansion valve, and the compressor is communicated with the condenser and the evaporator; the air conditioning system is arranged on the ceiling or the position, close to the ceiling, of the frame. Through the arrangement, the occupation of the air conditioning system on the internal space of the frame is reduced. Under some wading working conditions, the probability that water and dust raised on the ground make contact with the air conditioner system is reduced, the wading risk is reduced, and therefore the refrigeration performance of the air conditioner system and the user experience are hardly affected.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to an all-terrain vehicle. Background Art

[0002] As a vehicle with strong passability, all-terrain vehicles are becoming more and more popular among consumers.

[0003] In order to improve passenger comfort, reduce driver fatigue and improve driving safety, all-terrain vehicles are equipped with air conditioning systems to cool and heat the air inside the vehicle. The air conditioning system includes an evaporator, an expansion valve, a compressor and a condenser. The compressor is usually set at the rear of the all-terrain vehicle frame, and the condenser is set at the front of the frame. The air conditioning main unit is arranged below the instrument panel and close to the chassis. The evaporator is located inside the air conditioning main unit. The entire air conditioning system occupies a large amount of frame space, resulting in insufficient space for the entire layout of the frame. In some wading conditions, since the air conditioning system is set close to the chassis, the probability of water and dust raised from the ground contacting the air conditioning system is relatively high, thus affecting the service life of the air conditioning.

[0004] Therefore, it is necessary to further improve the existing all-terrain vehicle. Utility Model Content

[0005] In order to solve the deficiencies of the prior art, the purpose of the present application is to provide an all-terrain vehicle, whose air conditioning system occupies less space inside the frame and has a longer service life.

[0006] To achieve the above objectives, this application adopts the following technical solutions:

[0007] An all-terrain vehicle comprises a frame, a body covering and an air-conditioning system, wherein the body covering is connected to the frame and together with the frame forms a cabin, and the body covering comprises a ceiling covering the top of the frame; the air-conditioning system is at least partially supported by the frame, and is at least used to supply air into the cabin, and the air-conditioning system is arranged on the ceiling, or the air-conditioning system is arranged at a position of the frame close to the ceiling, and the air-conditioning system comprises a compressor, a condenser, an evaporator and an expansion valve, the condenser is connected to the evaporator through the expansion valve, and the compressor is respectively connected to the condenser and the evaporator.

[0008] Furthermore, the air conditioning system includes a box body, a cavity is defined in the box body, the compressor, condenser, evaporator and expansion valve are all located in the cavity, and the box body is provided with an air outlet for supplying air into the cabin. That is, the compressor, condenser, evaporator and expansion valve are integrated in the box body.

[0009] In addition, the air conditioning system can also be set up individually.

[0010] Furthermore, the ceiling includes a front area and a rear area distributed along the length direction of the frame, and a mounting opening is opened on the front area of ​​the ceiling. The box body is embedded in the mounting opening and connected to the frame.

[0011] In addition, an air conditioning system can also be arranged in the rear area.

[0012] Furthermore, the frame includes a top beam assembly, which includes a front beam, a middle beam, a rear beam and side beams. The front beam, the middle beam and the rear beam are arranged in sequence along the length direction of the frame and extend along the width direction of the frame. There are two side beams, which are arranged at intervals along the width direction of the frame and extend along the length direction of the frame. The front end of the side beam is connected to the corresponding end of the front beam, and the rear end of the side beam is connected to the corresponding end of the rear beam. The left and right ends of the middle beam are respectively connected to the side beams on the corresponding sides. Part of the box body is located in the space enclosed by the front beam, the middle beam and the side beams, and is connected to the front beam and the middle beam.

[0013] Furthermore, the box body includes a front plate and a rear plate arranged at intervals along the length direction of the frame, and the frame also includes a mounting assembly, the front plate is connected to the front beam through at least one group of the mounting assemblies, and the rear plate is also connected to the rear beam through at least one group of the mounting assemblies.

[0014] Further, the mounting assembly includes a mounting seat and a connecting piece, the mounting seat is provided on both the front plate and the rear plate, the mounting seat is provided with a mounting hole, the front beam and the middle beam are provided with connecting holes corresponding to the mounting holes on the corresponding side, and a part of the connecting piece can be constrained in the mounting hole and the connecting hole on the corresponding side. Further, the box body includes a top plate and a bottom plate arranged at intervals along the height direction of the frame, the air outlet is located on the bottom plate, an internal circulation air inlet is provided on the bottom plate, and the cockpit is connected to the cavity through the internal circulation air inlet.

[0015] In addition, the air outlet may also be located at other positions of the box body as long as it can supply air to the cabin.

[0016] Furthermore, a ventilating hole communicating with the cavity is provided on the box body.

[0017] Preferably, the box body includes two side panels, a front panel and a rear panel, the two side panels are arranged at intervals along the width direction of the frame, the front panel and the rear panel are arranged at intervals along the length direction of the frame, and the rear panel and at least one of the two side panels are provided with the ventilation opening.

[0018] In order to conveniently drain the condensed water in the cavity, a drainage pipe connected to the cavity is arranged on the bottom plate.

[0019] In order to better introduce wind into the cabin, the air conditioning system further includes a blower disposed in the cavity, and the air outlet is disposed at a position corresponding to the blower.

[0020] Furthermore, a vertical partition extending along the height direction of the frame is provided in the cavity, and the vertical partition is arranged along the width direction of the frame. The vertical partition divides the cavity into a front cavity and a rear cavity which are arranged in sequence along the length direction of the frame. The blower, the evaporator and the expansion valve are all located in the front cavity, and the compressor and the condenser are both located in the rear cavity.

[0021] In the above-mentioned all-terrain vehicle, the entire air-conditioning system can be arranged on the top ceiling, or it can be arranged at a position of the frame close to the ceiling, so as to avoid the air-conditioning system occupying the lower space of the all-terrain vehicle frame, that is, reducing the air-conditioning system's occupation of the internal space of the frame. In addition, in some wading conditions, since the air-conditioning system is arranged on the ceiling, the probability of water and dust raised from the ground contacting the air-conditioning system is reduced, and the risk of wading is reduced, so that the cooling performance and user experience of the air-conditioning system are hardly affected. In addition, the maintenance and / or cleaning cycle of the air-conditioning system is reduced, thereby reducing the maintenance and / or cleaning cost of the air-conditioning system and extending the service life of the air-conditioning system. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a partial structural schematic diagram of an all-terrain vehicle in an embodiment of the present application;

[0023] Figure 2 This is a partial structural schematic diagram of an all-terrain vehicle equipped with an air conditioning system in an embodiment of the present application;

[0024] Figure 3 This is a partial structural schematic diagram of an air conditioning system in an embodiment of the present application;

[0025] Figure 4 This is another structural schematic diagram of an all-terrain vehicle equipped with an air conditioning system in an embodiment of the present application;

[0026] Figure 5 In the implementation mode of this application Figure 3 The structural diagram of the air conditioning system in FIG.

[0027] Figure 6 In the implementation mode of this application Figure 4 A partial enlarged view of the middle A;

[0028] Figure 7 In the implementation mode of this application Figure 4 A partial enlarged view of point B in the middle;

[0029] Figure 8 In the implementation mode of this application Figure 4 A schematic diagram of the structure of the bottom plate of the air conditioning system;

[0030] Fig. 9 A schematic structural diagram of the air conditioning system of an all-terrain vehicle from another angle in an embodiment of the present application;

[0031] Fig.10 Schematic diagram of the air conditioning system in the embodiment of the present application. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the specific implementation manner of the present application will be clearly and completely described below in conjunction with the drawings in the implementation manner of the present application.

[0033] In the following, the length direction of the all-terrain vehicle 100 is taken as the front-to-back direction, the width direction of the all-terrain vehicle 100 is taken as the left-right direction, and the height direction of the all-terrain vehicle 100 is taken as the up-down direction. Figure 1 The front, back, left, right, top and bottom are defined in.

[0034] like Figure 1 and Figure 2 As shown, the all-terrain vehicle 100 includes a frame 11, a body cover 12, an air conditioning system 13, a running assembly 14, and a suspension assembly 15. The body cover 12 is connected to the frame 11, and the body cover 12 and the frame 11 together form a cabin 101. The body cover 12 includes a roof 121 covering the top of the frame 11.

[0035] like Figure 1 As shown, the above-mentioned traveling assembly 14 includes a front wheel 141 and a rear wheel 142, the front wheel 141 is located in front of the rear wheel 142, the suspension assembly 15 includes a front suspension 151 and a rear suspension 152 located behind the front suspension 151, the front wheel 141 is installed on the frame 11 through the front suspension 151, and the rear wheel 142 is installed on the frame 11 through the rear suspension 152.

[0036] like Figure 2As shown, the vehicle frame 11 includes a top beam assembly 111, a B-pillar 112, a chassis 113, an A-pillar 115, and a C-pillar 116. The A-pillar 115 is located in front of the B-pillar 112, and the C-pillar 116 is located behind the B-pillar 112. The top beam assembly 111, the B-pillar 112, the A-pillar 115, and the C-pillar 116 together constitute a main frame, and the main frame is located above the chassis 113. The above-mentioned B-pillar 112, the A-pillar 115, and the C-pillar 116 are all located between the top beam assembly 111 and the chassis 113, and are used to support the above-mentioned top beam assembly 111 and the roof 121.

[0037] like Figure 2 As shown, the top beam assembly 111 includes a front beam 1111, a middle beam 1112, a rear beam 1113 and two side beams. The front beam 1111, the middle beam 1112 and the rear beam 1113 are arranged in sequence from front to back along the length direction of the frame 11, and the front beam 1111, the middle beam 1112 and the rear beam 1113 are all extended along the width direction of the frame 11. The two side beams are arranged at intervals along the width direction of the frame 11, and the two side beams are all extended along the length direction of the frame 11. In this embodiment, the two side beams are respectively a first side beam 1114 and a second side beam 1115, the first side beam 1114 is located on the left side of the second side beam 1115, the front end of the first side beam 1114 is connected to the left end of the front beam 1111, and the rear end of the first side beam 1114 is connected to the left end of the rear beam 1113. The front end of the second side beam 1115 is connected to the right end of the front beam 1111, and the rear end of the second side beam 1115 is connected to the right end of the rear beam 1113. The left end of the middle beam 1112 is connected to the first side beam 1114, and the right end of the middle beam 1112 is connected to the second side beam 1115.

[0038] There are two A-pillars 115 and two C-pillars 116, and the two A-pillars 115 are arranged at intervals along the width direction of the frame 11. The two A-pillars 115 are gradually inclined forward from top to bottom. The two B-pillars 112 and the two C-pillars 116 are arranged at intervals along the width direction of the frame 11. The B-pillars 112 and the C-pillars 116 are arranged along the height direction of the frame 11. The top ends of the B-pillars 112 and the C-pillars 116 are connected to the side beams on the corresponding sides, and the lower ends of the B-pillars 112 and the C-pillars 116 are connected to the chassis 113. In this embodiment, the top end of the B-pillar 112 corresponds to the center beam 1112.

[0039] like Figure 1 Combination Figure 2As shown, the air conditioning system 13 is at least partially disposed on the vehicle frame 11, that is, the air conditioning system 13 is at least partially supported by the vehicle frame 11. The air conditioning system 13 is at least used to supply air to the cabin 101. In some embodiments, the air conditioning system 13 is located below the ceiling 121, and the air conditioning system 13 is connected to the top beam assembly 111 of the vehicle frame 11. In some embodiments, the air conditioning system 13 is disposed on the ceiling 121 and is connected to the ceiling 121. Figure 3 As shown, in this embodiment, the air conditioning system 13 is disposed on the ceiling 121. The ceiling 121 is connected to the top beam assembly 111.

[0040] The entire air conditioning system 13 is located on the top ceiling 121 or the top beam assembly 111, so as to avoid the air conditioning system 13 occupying the lower space of the frame 11, that is, reducing the air conditioning system 13 from occupying the internal space of the frame 11. In addition, in some wading conditions, the probability of water and dust raised on the ground contacting the air conditioning system 13 is reduced, and the risk of wading is reduced, so that the cooling performance and user experience of the air conditioning system 13 are hardly affected. In addition, the maintenance and / or cleaning cycle of the air conditioning system 13 is reduced, thereby reducing the maintenance and / or cleaning cost of the air conditioning system 13 and extending the service life of the air conditioning system 13.

[0041] like Figure 1 Combination Figure 2 As shown, the roof 121 includes a front area and a rear area distributed along the length direction of the frame 11. In this embodiment, the front area of ​​the roof 121 is located in front of the top of the B-pillar 112, and the rear area of ​​the roof 121 is located behind the top of the B-pillar 112. Since the top of the B-pillar 112 corresponds to the middle beam 1112, the area between the front beam 1111 and the middle beam 1112 corresponds to the front area of ​​the roof 121, and the area between the middle beam 1112 and the rear beam 1113 corresponds to the rear area of ​​the roof 121.

[0042] The air conditioning system 13 is arranged in the front area, and a mounting opening 1211 is provided in the front area of ​​the ceiling 121. Figure 1 Combination Figure 2 As shown, along the width direction of the frame 11, the installation opening 1211 is located near the middle of the front area of ​​the roof 121. The air conditioning system 13 is embedded in the installation opening 1211. In addition, the air conditioning system 13 can also be set in the rear area. Figures 3 to 5 As shown, the air conditioning system 13 includes a housing 131, a compressor 132, a condenser 133, an evaporator 134, a blower 135 and a refrigeration circuit 136. The housing 131 defines a cavity 102, and the compressor 132, the condenser 133, the evaporator 134 and the blower 135 are all located in the cavity 102. Figure 3 and Figure 5As shown, the box body 131 includes a top plate 1311, a bottom plate 1312, a side plate 1313, a front plate 1314 and a rear plate 1315. The top plate 1311, the bottom plate 1312, the side plate 1313, the front plate 1314 and the rear plate 1315 together enclose the cavity 102. Figure 2 As shown, the front plate 1314 and the rear plate 1315 are arranged at intervals along the length direction of the frame 11.

[0043] like Figure 4 , Figure 6 and Figure 7 As shown, the frame 11 further includes a mounting assembly 117, and the mounting assembly 117 includes a mounting seat 1171 and a connecting member. Figure 1 Combination Figure 4 As shown, the box body 131 is embedded in the installation opening 1121, and part of the box body 131 is located in the space enclosed by the front beam 1111, the middle beam 1112, the first side beam 1114 and the second side beam 1115. The front plate 1314 of the box body 131 is connected to the front beam 1111 through at least one set of installation components 117, and the rear plate 1315 of the box body 131 is also connected to the middle beam 1112 through the installation components 117. In this embodiment, the front plate 1314 and the rear plate 1315 are both provided with a mounting seat 1171, and the mounting seat 1171 is provided with a mounting hole 1171a. The front beam 1111 and the middle beam 1112 are both provided with a connecting hole (not shown) at a position corresponding to the mounting hole 1171a on the corresponding side, and part of the connecting member can be constrained in the mounting hole 1171a and the connecting hole. In this embodiment, the connecting member is a bolt with a screw portion (not shown), and the mounting hole 1171a and the connecting hole are both threaded holes threadedly connected to the screw portion. The mounting assembly 117 corresponding to the front plate 1314 also includes a shock absorbing member 1172, and the shock absorbing member 1172 is located between the front beam 1111 and the mounting seat 1171 on the corresponding side. The existence of the shock absorbing member can provide shock absorption and buffering for the air conditioning system 13 during the driving process of the all-terrain vehicle 100.

[0044] In some embodiments, the connection holes are directly formed on the front beam 1111 and the middle beam 1112. In other embodiments, the installation assembly 117 further includes nuts, and the front beam 1111 and the middle beam 1112 are both fixed with nuts, the nuts on the front beam 1111 are located above the front beam 1111, and the nuts on the middle beam 1112 are located above the middle beam 1112. The connection holes are threaded holes for the nuts. Figure 7 As shown, the shock absorbing member 1172 is located between the nut and the mounting seat 1171 on the corresponding side. The shock absorbing member 1172 is a shock absorbing rubber pad.

[0045] In order to make the air conditioning system more stable after installation, Figure 4 , Figure 6 and Figure 7As shown, the front plate 1314 corresponds to two groups of mounting components 117, and the two groups of mounting components 117 are arranged at intervals along the width direction of the frame 11. In some embodiments, the rear plate 1315 also corresponds to two groups of mounting components 117, or even more than two groups of mounting components 117.

[0046] In some embodiments, the bottom surface of the bottom plate 1312 may be flush with the bottom surface of the ceiling 121 .

[0047] In this embodiment, if Figure 2 and Figure 3 As shown, a vertical partition 137 extending along the height direction of the frame 11 is provided in the cavity 102, and the vertical partition 137 is arranged along the width direction of the frame 11. The vertical partition 137 divides the cavity 102 into a front cavity 1021 and a rear cavity 1022 arranged in sequence along the length direction of the frame 11. The blower 135 and the evaporator 134 are located in the front cavity 1021. In this embodiment, there are two blowers 135, and the two blowers 135 are arranged along the width direction of the frame 11. The compressor 132 and the condenser 133 are both located in the rear cavity 1022. In this embodiment, the compressor 132 is located behind the condenser 133, and the blower 135 is located behind the evaporator 134. In order to make the condenser 133 dissipate heat better, a fan 1331 for sucking air from the condenser 133 is provided on the condenser 133. The existence of the fan 1331 enhances the refrigeration performance of the air conditioning system 13.

[0048] like Figure 3 As shown, the evaporator 134 is arranged close to the front plate 1314. Figure 2 and Figure 4 As shown, the top plate 1311 and the bottom plate 1312 are arranged at intervals along the height direction of the frame 11. Figure 2 and Figure 8 As shown, the bottom plate 1312 is provided with an air outlet 1312a for supplying air to the cabin 101, and the air outlet 1312a is located on the box body 131. In this embodiment, the air outlet 1312a is arranged at a position corresponding to the blower 135, and the air outlet 1312a is connected to the front cavity 1021. Figure 2 Combination Figure 3 As shown, the cold air can quickly flow into the cabin 101 through the air outlet 1312a under the action of the blower 135. Figure 3 and Figure 8 As shown, there are two air outlets 1312a, and each air outlet 1312a corresponds to a blower 135. The two air outlets 1312a are arranged at intervals along the width direction of the vehicle frame 11. An air outlet grille (not shown) is provided at each air outlet 1312a.

[0049] In order to conveniently discharge the condensed water in the cavity 102, Figure 2 and Figure 5 As shown, a drain pipe 1317 connected to the chamber 102 is provided on the bottom plate 1312. In this embodiment, the drain pipe 1317 is located on the bottom plate 1312 of the box body 131 and outside the box body 131. In order to facilitate the water in the chamber 102 to flow out more smoothly through the drain pipe 1317, as shown in FIG. Figure 8 As shown, a water channel 1312b is provided on the inner bottom surface of the bottom plate 1312, and the water channel 1312b is connected to the drain pipe 1317. There are many ways to form the water channel 1312b, and the water channel 1312b can be formed by a downward depression on the inner bottom surface of the bottom plate 1312, or other methods. In this embodiment, the following method is adopted: a convex rib 1312c extending upward is provided on the inner bottom surface of the bottom plate 1312, and the convex rib 1312c is in a closed ring shape. The ring-shaped convex rib 1312c surrounds the water channel 1312b, as shown in FIG. Figure 3 Combination Figure 8 As shown, the bottom plate 1312 is provided with a drain port 1312d in communication with the drain pipe 1317 in the water guide groove 1312b.

[0050] In this embodiment, the water guide groove 1312b is basically L-shaped. The water guide groove 1312b includes a first extension groove extending along the length direction of the frame 11 and a second extension groove extending along the width direction of the frame 11. The rear portion of the first extension groove is located in the rear cavity 1022, the front portion of the first extension groove is located in the front cavity 1021, and the second extension groove is located in front of the first extension groove. Then, the second extension groove is located in the front cavity 1021, and the above-mentioned drain port 1312d is located at the connection between the first extension groove and the second extension groove, that is, the drain port 1312d is located at the corner of the water guide groove 1312b. In addition, as Figure 2 , Figure 3 and Figure 8 As shown, an internal circulation air inlet 1312e is provided on the bottom plate 1312, and the internal circulation air inlet 1312e corresponds to the front cavity 1021 of the cavity, and the cabin 101 is connected to the cavity 102 through the internal circulation air inlet 1312e.

[0051] like Figure 2 Combination Figure 5 As shown, the two side plates 1313 are arranged at intervals along the width direction of the frame 11. Figure 3 Combination Fig. 9 As shown, at least one of the two side panels 1313 and the rear panel 1315 are provided with a vent 1316 connected to the cavity 102. In addition, to facilitate the routing of the wiring harness, the side panel 1313 is also provided with a harness hole 1313a for the wiring harness to pass through.

[0052] like Fig.10As shown, the condenser 133 is connected to the evaporator 134, and the compressor 132 is connected to the condenser 133 and the evaporator 134 respectively. In this embodiment, the refrigeration circuit 136 includes a first pipe 1361, a second pipe 1362, a third pipe 1363, a pressure switch 1364 and an expansion valve 1365. The compressor 132 is connected to the condenser 133 through the first pipe 1361, the condenser 133 is connected to the evaporator 134 through the second pipe 1362, the pressure switch 1364 and the expansion valve 1365 are both arranged in the second pipe 1362, along the fluid flow path in the second pipe 1362, the expansion valve 1365 is located downstream of the pressure switch 1364, and the evaporator 134 is connected to the compressor 132 through the third pipe 1363. In this way, the condenser 133 is connected to the evaporator 134 after passing through the pressure switch 1364 and the expansion valve 1365 in sequence.

[0053] The air conditioning system 13 is filled with refrigerant. The compressor 132 compresses the refrigerant into high-temperature and high-pressure gas. The high-temperature and high-pressure gas dissipates heat through the condenser 133 and becomes high-pressure liquid. The high-pressure liquid is throttled by the expansion valve 1365 and becomes low-pressure liquid. The low-pressure liquid absorbs heat in the air conditioning main unit through the evaporator 134, and the temperature in the air conditioning main unit decreases. The cold air in the air conditioning main unit is directly discharged into the cabin 101 through the air outlet 1312a to cool the cabin 101. After passing through the evaporator 134, the low-pressure liquid becomes low-temperature and low-pressure gas, and the low-temperature and low-pressure gas enters the compressor 132 again, forming a cycle to achieve continuous cooling of the cabin 101.

[0054] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to this application.

Claims

1. An all-terrain vehicle comprising: Frame; A body covering member connected to the vehicle frame and forming a cabin together with the vehicle frame, wherein the body covering member comprises a roof covering the top of the vehicle frame; an air conditioning system, the air conditioning system being at least partially supported by the vehicle frame, the air conditioning system being at least used to supply air into the cabin; It is characterized in that the air-conditioning system is arranged on the ceiling, or the air-conditioning system is arranged at a position of the frame close to the ceiling, the air-conditioning system includes a compressor, a condenser, an evaporator and an expansion valve, the condenser is connected to the evaporator through the expansion valve, and the compressor is respectively connected to the condenser and the evaporator.

2. The all-terrain vehicle according to claim 1, characterized in that: The air conditioning system comprises a box body, a cavity is defined in the box body, the compressor, the condenser, the evaporator and the expansion valve are all located in the cavity, and the box body is provided with an air outlet for supplying air into the cabin.

3. The all-terrain vehicle according to claim 2, characterized in that: The box body is provided with a ventilating opening which is communicated with the cavity.

4. The all-terrain vehicle according to claim 2, characterized in that: The ceiling comprises a front area and a rear area distributed along the length direction of the frame. The front area of ​​the ceiling is provided with an installation opening, the box body is embedded in the installation opening and connected to the frame.

5. The all-terrain vehicle according to claim 4, characterized in that: The box body includes a top plate and a bottom plate arranged at intervals along the height direction of the frame, the air outlet is located on the bottom plate, an internal circulation air inlet is provided on the bottom plate, and the cabin is connected to the cavity through the internal circulation air inlet.

6. The all-terrain vehicle according to claim 4, characterized in that: The frame includes a top beam assembly, which includes a front beam, a middle beam, a rear beam and side beams. The front beam, the middle beam and the rear beam are arranged in sequence along the length direction of the frame and extend along the width direction of the frame. There are two side beams, which are arranged at intervals along the width direction of the frame and extend along the length direction of the frame. The front end of the side beam is connected to the corresponding end of the front beam, and the rear end of the side beam is connected to the corresponding end of the rear beam. The left and right ends of the middle beam are respectively connected to the side beams on the corresponding sides. Part of the box body is located in the space enclosed by the front beam, the middle beam and the side beams, and is connected to the front beam and the middle beam.

7. The all-terrain vehicle according to claim 6, characterized in that: The box body includes a front plate and a rear plate arranged at intervals along the length direction of the frame. The frame also includes a mounting assembly. The front plate is connected to the front beam through at least one group of the mounting assemblies, and the rear plate is also connected to the rear beam through at least one group of the mounting assemblies.

8. The all-terrain vehicle according to claim 7, characterized in that: The mounting assembly includes a mounting seat and a connecting piece. The mounting seat is provided on the front plate and the rear plate. The mounting seat is provided with a mounting hole. The front beam and the middle beam are provided with connecting holes corresponding to the mounting holes on the corresponding sides. Part of the connecting piece can be constrained in the mounting hole and the connecting hole on the corresponding side.

9. The all-terrain vehicle according to any one of claims 2 to 8, characterized in that: The air conditioning system further includes a blower disposed in the cavity, and the air outlet is disposed at a position corresponding to the blower.

10. The all-terrain vehicle according to claim 9, characterized in that: A vertical partition extending along the height direction of the frame is provided in the cavity, and the vertical partition is arranged along the width direction of the frame. The vertical partition divides the cavity into a front cavity and a rear cavity which are arranged in sequence along the length direction of the frame. The blower, the evaporator and the expansion valve are all located in the front cavity, and the compressor and the condenser are both located in the rear cavity.

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