Patent ID: 12214652

DETAILED DESCRIPTION

Embodiments of the present disclosure are described in detail below. The embodiments described with reference to accompanying drawings are exemplary. The embodiments of the present disclosure are described in detail below.

An all-terrain vehicle1000according to an embodiment of the present disclosure is described below with reference toFIGS.1to7.

As shown inFIG.1-FIG.7, the all-terrain vehicle1000according to the embodiment of the present disclosure includes: a frame10, a driver's cab20, a container30, a power unit50and a second radiator72, the driver's cab20is arranged on the frame10and located in a middle portion of the frame10, the container30is arranged on the frame10and located behind the driver's cab20, and the container is mainly configured to place some goods and tools to facilitate users to transport and travel. The power unit50is also arranged on the frame10to provide power for the all-terrain vehicle1000, which not only improves the stability and firmness of the mounting of the driver's cab20, the container30and the power unit50on the all-terrain vehicle1000, but also enables the driver's cab20and the container30to be arranged at front-rear intervals. Furthermore, a space between the driver's cab20and the container30may be used to arrange components, such that a structural layout of the all-terrain vehicle1000is more reasonable.

Further, as shown inFIG.2-FIG.5, the second radiator72is arranged behind the driver's cab20, a front side of the container30is defined with a second air port324directly opposite to the second radiator72. Specifically, the container30and the driver's cab20are arranged at front-rear intervals, the second radiator72is arranged between the driver's cab20and the container30, i.e., behind the driver's cab20and in front of the container30. The second radiator72may be communicated with the cooling channel in the power unit50, so as to dissipate heat from the power unit50. After the second radiator72dissipates the heat from the power unit50, a temperature of the second radiator72rises, and the second radiator72needs to exchange heat with surrounding air, so as to reduce its own temperature and maintain the temperature within a suitable range. After the second radiator72exchanges heat with the surrounding air, the temperature of the air around the second radiator72rises, such that the second air port324defined on the container32and corresponding to the second radiator72may discharge hot air around the second radiator92from a front side of the container30to a rear side of the container32. Thus, the air around the second radiator72may continuously flow and circulate, the temperature of the air around the second radiator72may be maintained in a normal range, so as to further ensure the second radiator72to dissipate heat for the power unit50of the all-terrain vehicle1000continuously and stably, thereby improving the reliability of the all-terrain vehicle1000. In addition, the second air port324so arranged may also effectively prevent the air around the second radiator72from entering the driver's cab20forward and affecting drivers and passengers.

Further, as shown inFIG.1-FIG.6, during normal driving of the all-terrain vehicle1000, air around the all-terrain vehicle1000may accelerate to flow toward the rear side of the container30, so as to accelerate flow rate of the air flowing to the rear side of the container30through the second air port324, which may increase an air volume of the air flowing to the rear side of the container30in per unit time. With such the arrangement, the second radiator72may effectively utilize the air during the driving of the all-terrain vehicle1000, such that the heat may be carried away by the fast flowing air, which may further improve the heat dissipation efficiency and ensure the working reliability of the second radiator72. In addition, the second air port324at the front side of the container30may also be configured to ventilate the goods in the container30, which may prevent the acceleration of damage caused by a long-term stuffiness of the goods in the container30.

Thus, by the second air port324defined on the container30, the air exchanged with the second radiator72may be quickly discharged from the second air port324, which may improve heat dissipation effect of the second radiator72, so as to ensure performance of the all-terrain vehicle1000.

The driver's cab20may also be provided with a port for ventilation at a position corresponding to a position of the second air port324, which may reduce an air resistance, such that the air may quickly take away the heat around the second radiator72and other components in a front-rear direction.

As shown inFIGS.2-6, the container30may mainly include: a container body31and a front cover plate32. A front side of the container body31is defined with a through hole312, the front cover plate32is detachably mounted at the through hole312, and the front cover plate32is defined with the second air port324. Specifically, the container body31may be configured to load goods and separate the goods from components at the front side of the container body31as well as the drivers and passengers. In this way, the components at the front side of the container body31as well as the drivers and passengers may be prevented from being affected by the goods, so as to effectively protect safety of the components at the front side of the container body31as well as the drivers and passengers.

Further, the front side of the container body31is defined with the through hole312, such that the front cover plate32is detachably mounted at the through hole312, which not only ensures the stability and firmness of the mounting of the front cover plate32on the container body31, but also facilitates user to open the front cover plate32and repair the second radiator72through the through hole312. Moreover, the arrangement may further prevent that the front cover plate32protrudes relative to the container body31and affects the loading of goods in the container30.

In addition, the second air port324is defined on the front cover plate32, air of the front side of the container30may be discharged directly through the second air port324on the front cover plate32. In this way, in a process of being discharged from the front side of the container30, the air may travel a short distance without causing obstacle to other components, so as to ensure a speed of the air flowing out of the second air port324, and further improve the heat dissipation effect of the second radiator72on the power unit50. In addition, through the arrangement that the second air port324is defined on the front cover plate32, the front cover plate32may be manufactured separately without directly arranging the second air port324on the container body31. In addition, the second air port324is configured as a honeycomb air port or grid air port, such that on the premise of ensuring the ventilation performance of the second air port324, relatively large foreign matters may be prevented from entering the accommodating slot23of the driver's cab20through the second air port324and damaging the second radiator72, which may further ensure the structural reliability of the second radiator72.

As shown inFIG.2-FIG.6, the front cover plate32is provided with a second air guide strip323for air guide at the second air port324. Specifically, the second air guide strip323may guide the air on the front side of the container30, which may not only further improve the speed of the air discharged from the second air port324, but also prevent the air from spreading around after being discharged from the second air port324, resulting in the air returning to the front side of the container30. In this way, effect of the air discharged from the second air port324may be further improved, and thus, the reliability of the second radiator72may be further improved. In addition, the arrangement of the second air guide strip323may also strengthen structural strength of the second air port324and avoid the structure of the second air port324being too fragile to be damaged.

As shown inFIG.2-FIG.6, an upper end of the second air guide strip323is bent forward and bent into an arc shape. Specifically, the upper end of the second air guide strip323is bent forward, such that the upper end of the second air guide strip323have a certain air guide length, so as to ensure that the air is stably and continuously discharged from the front side of the container30to the rear side of the container30through the second air port324, further prevent the air from returning to the front side of the container30, and ensure the reliability of the second air port324. Thus, the heat dissipation effect of the second radiator72may be ensured.

Further, the upper end of the second air guide strip323is bent forward into the arc shape, the air may flow in accordance with an arc-shaped bent portion at the upper end of the second air guide strip323. Thus, not only can the flow of air be much smoother to prevent the flow of air from getting stuck, but also can prevent the air from making noise at the bent portion, which may further reduce vehicle noise of the all-terrain vehicle1000.

As shown inFIG.2-FIG.6, the front cover plate32is provided with a third flange325at an edge of the second air port324, and the third flange325is in annular shape. The third flange325may cover the edge of the second air port324, which may prevent foreign matters from entering the second air port324to a certain extent, and the arrangement of the third flange325may effectively strengthen structural strength of the edge of the second air port324, so as to prevent serious deformation of the second air port324during very high winds, thereby improving structural reliability of the container30.

As shown inFIG.2-FIG.6, a front side wall311of the container body31is provided with a first hanging portion3112, the front cover plate32is provided with a second hanging portion326, one of the first hanging portion3112and the second hanging portion326is a hook, and the other one of the first hanging portion3112and the second hanging portion326is a hanging hole, and the hook is fitted with the hanging hole in a hanging manner. Specifically, through the fitting between the hook and the hanging hole, the front cover plate32may be mounted and arranged on the front side wall311of the container body31. In this way, on the premise of ensuring the stability and firmness of the mounting of the front cover plate32on the front side wall311of the container body31, a difficulty that the front cover plate32is mounted and arranged on the front side wall311of the container body31may be reduced, so as to facilitate the mounting of the front cover plate32, and it is also convenient to remove the front cover plate32from the front side wall311of the container body31.

As shown inFIG.2-FIG.6, the front cover plate32may mainly include: a cover body321and a second flange322, the second flange322is connected to a top of the cover body321, the second flange322is arranged on a top of the front side wall311of the container body31, the front side wall311of the container body31is provided with a first positioning portion3111, and the second flange322is provided with a second positioning portion3221. One of the first positioning portion3111and the second positioning portion3221is a positioning column, the other one of the first positioning portion3111and the second positioning portion3221is a positioning hole, the positioning column is positioned and fitted with the positioning hole. Specifically, the positioning column is placed into the positioning hole for positioning and fitting, the second flange322may be quickly and accurately mounted and arranged to the top of the front side wall311of the container body31, such that on the basis of the fitting between the first hanging portion3112and the second hanging portion326, the stability and firmness of the mounting of the front cover plate32on the container body31may be further improved.

In addition, the second flange322on the top of the cover body321is arranged on the top of the front side wall311of the container body31, which may cover and seal a top of a through hole312defined on the front side of the container body31, so as to prevent external foreign matters from entering the through hole312through the top of the through hole312and damaging corresponding components in the through hole312to a certain extent, and further improve the reliability of the container30.

As shown inFIG.2-FIG.6, the front cover plate32is provided with reinforcing ribs3241on a periphery of the second air port324. In this way, on the premise of ensuring ventilation of the front cover plate32and preventing the reinforcing ribs3241from covering the second air port324, the structural strength of the front cover plate32may be further enhanced, so as to further prevent the front cover plate32from being easily damaged by external forces. Thus, the structural reliability of the container30of the all-terrain vehicle1000may be improved.

As shown inFIG.2-FIG.6, the container body31is provided with a step portion313recessed at an edge of the through hole312, an edge of the front cover plate32is overlapped at the step portion313, and a surface of the front cover plate32does not exceed a surface of the front side wall311of the container body31. Specifically, the arrangement that the container body31is provided with the step portion313recessed at an edge of the through hole312, such that the surface of the front cover plate32overlapped at the step portion313does not exceed the surface of the front side wall311of the container body31. Through such an arrangement, not only the stability and firmness of the mounting of the front cover plate32on the container body31may be improved, but also the surface of the front cover plate32is prevented from protruding relative to the surface of the front side wall311of the container body31, which may otherwise cause the surface of the front cover plate32vulnerable to scratch and impact and results in the damage of the front cover plate32. In this way, the structural reliability of the front cover plate32may be further improved.

In addition, the container30may also be provided with a baffle, which may function to cover the second air port324. For example, when the container30is loaded with sand, soil, water and other goods, the baffle may cover the front cover plate32.

Moreover, the second air guide strip323at the front cover plate32may be arranged as a movable second air guide strip323. When the container30is loaded with sand, soil, water and other goods, the second air guide strip323may be rotated to a vertical position so as to close the second air port324. When the container30is loaded with other goods, the second air guide strip323may be rotated to a horizontal position or an inclined position at an acute angle relative to the horizontal position.

Optionally, as shown inFIG.1-FIG.6, the second radiator72is located at a front side of the container30, and a leeward surface of the second radiator72is opposite to the second air port324. Through such an arrangement, the second radiator72may make full use of the air blowing to the second radiator72during the driving of the all-terrain vehicle1000for heat exchange, and the second radiator72may make full use of a spacing area between the front side of the container30and the driver's cab20, thereby preventing the arrangement of the second radiator72from affecting the arrangement of other components, which may improve space utilization of the all-terrain vehicle1000.

Optionally, the second radiator72is arranged in the container30, such that the second radiator72correspond to the second air port324defined on the container30. During the driving of the all-terrain vehicle1000, the second radiator72may also fully exchange heat with the air blowing to the second radiator72. On this premise, the stability of the mounting of the second radiator72may be improved, and the container30may also further seal and protect the second radiator72to prevent the second radiator72from being exposed to the outside, which may otherwise cause damage due to erosion of external foreign bodies and the impact of external forces. In this way, the structural reliability of the second radiator72may be improved and the service life of the second radiator72may be prolonged.

Further, the second radiator72may be selectively arranged in the front side of the container30or inside the container30according to a size of the second radiator72, an overall structural layout of the all-terrain vehicle1000and specific process requirements, so as to improve the applicability of the second radiator72.

In some embodiments, the power unit50generates heat inside during working. In order to ensure that a working temperature of the power unit50may be maintained within a reasonable range, a cooling channel is defined in the power unit50. The power unit50includes an engine, an air inlet pipeline and an air filter. The air inlet pipeline is connected between the engine and the air filter, the air filter may filter air, and the air then enters a cylinder of the engine through the air inlet pipe. A liquid medium configured for cooling may flow in the cooling channel. When flowing in the cooling channel, the liquid medium may exchange heat with the power unit50, so as to take heat of the power unit50away, and then the working temperature of the power unit50may be maintained within a reasonable range.

The second radiator72is communicated with the cooling channel of the power unit50. That is, a circulation circuit may be formed between a heat dissipation channel inside the second radiator72and the cooling channel of the power unit50, and the liquid medium may circulate in the circulation circuit. The circulation circuit may also be provided with a water pump to provide power for circulation of liquid medium, and the water pump may be connected with the power unit50in a transmission manner, that is, the power unit50may drive the water pump to work simultaneously during working, so as to ensure that the liquid medium may participate in the heat exchange when the power unit50starts to work.

When the power unit50works at high power, the power unit50generates a large amount of heat, and the liquid medium may dissipate the heat in the heat dissipation channel inside the second radiator72. After the temperature is reduced, the liquid medium enters the cooling channel again to exchange heat with the power unit50, such that the heat of the power unit50may be effectively and continuously carried away.

Of course, during a cold-start of the power unit50, the liquid medium in the cooling channel may also quickly return to the cooling channel without passing through the heat dissipation channel, such that the temperature of the power unit50may rise rapidly within a reasonable range.

As shown inFIGS.2-5, the second radiator72is located between the container30and the driver's cab20. Specifically, the container30is arranged behind the driver's cab20, and there is a spacing area between the container30and the driver's cab20. The second radiator72is arranged in the spacing area between the container30and the driver's cab20, such that the spacing area between the container30and the driver's cab20may be reasonably utilized to distinguish the vehicle from the all-terrain vehicle with only a first radiator71. In this way, a plurality of mounting positions of the radiators may be provided, so as to improve layout flexibility of the all-terrain vehicle1000, and ensure the stability of the mounting position of the radiator.

In addition, as shown inFIG.1, the all-terrain vehicle1000may also be provided with a first radiator71on a front side of the frame10to dissipate heat of the power unit50, and that is, the all-terrain vehicle1000may be further provided with the second radiator72between the container30and the driver's cab20on the basis of the original first radiator71, which may further improve heat dissipation effect of the power unit50, and thus improve the reliability of the power unit50and the all-terrain vehicle1000. The first radiator71may be acted as a main radiator, the second radiator72arranged between the container30and the driver's cab20may be an auxiliary radiator, and the main radiator and the auxiliary radiator may work simultaneously, such that the temperature of the power unit50may be reduced more quickly. Of course, when the main radiator may meet heat dissipation demand of the power unit50, the auxiliary radiator may be in a shutdown state. The main radiator and the auxiliary radiator may be connected in series or in parallel.

In some embodiments, as shown inFIG.1-FIG.6, the driver's cab20may mainly include: a backplate21located at a rear of the driver's cab20to separate the drivers and passengers in the driver's cab from components at rear side of the all-terrain vehicle1000, thereby preventing the drivers and passengers from being affected by the working of the components at rear side, and effectively protecting the safety of the drivers and passengers.

The backplate21is connected to the front side of the container30, an accommodating slot23is defined between the backplate21and the container30, and the second radiator72is arranged in the accommodating slot23. Specifically, the backplate21may be configured to mount seats. There may be two seats, i.e., a main driver's seat and a co-driver's seat. The backplate21is connected with the front side of the container30to define the accommodating slot23, and the second radiator72is arranged in the accommodating slot23, which may improve the stability and reliability of the mounting of the second radiator72in the all-terrain vehicle1000. A part of the frame10may be located in the accommodating slot23, such that the second radiator72may be mounted on this part of the frame10, so as to solve the mounting problem of the second radiator72.

In addition, the second radiator72is arranged in the accommodation slot23, such that not only may the second radiator72be stably and firmly arranged in the accommodating slot23, but also the accommodating slot23may better protect the second radiator72, which may prevent large foreign matters from impacting the second radiator72through the backplate21and the container30, and further improve the structural reliability of the second radiator72. In addition, the accommodating slot23defined by the backplate21and the container30opens downward. The accommodating slot23opened downward may ensure its own ventilation, so as to improve exchange speed between the air around the second radiator72and the air outside the accommodating slot23, and thus further improve the heat exchange efficiency between the second radiator72and the surrounding air.

In addition, the arrangement of the backplate21may separate the second radiator72from the drivers and passengers in the driver's cab20, prevent the second radiator72from being hit or squeezed the personnel in the driver's cab20when the all-terrain vehicle1000is driving violently on a bumpy road, and further improve the reliability of the all-terrain vehicle1000, thereby ensuring safety and driving experience of the personnel in the driver's cab20.

In addition, when the second radiator72is dissipating heat, the air after heat exchange is emitted to the surroundings. The arrangement of the backplate21may prevent most of the air from being emitted forward, so as to effectively prevent the heat from being transferred to the drivers and passengers, and thus ensure driving comfort of the drivers and passengers. When the all-terrain vehicle1000is a driving state, the airflow flows from front to rear relative to the all-terrain vehicle1000, thereby allowing the heat to be carried backwards.

As shown inFIG.2-FIG.6, a top of the backplate21is provided with a first flange28, the first flange28is overlapped on a front side of the container30, and the first flange28may be detachably connected to the container30. Specifically, through the arrangement of the first flange28provided on the top of the backplate21, a top of the accommodating slot23, defined by the backplate21and the front side of the container30, is sealed to relatively close the accommodating slot23, such that the accommodating slot23may protect the second radiator72, such that the external foreign matters are prevent from contacting the second radiator72and damaging the second radiator72, and the second radiator72may be prevented from being damaged by external force hitting or squeezed, which may effectively improve the structural reliability and stability of the second radiator72. In addition, the second radiator72is arranged in the accommodating slot23that is relatively sealed, so as to ensure the stability and firmness of the mounting of the second radiator72, and prevent the second radiator72from separating from the all-terrain vehicle1000and being thrown out from the all-terrain vehicle1000when the all-terrain vehicle1000is driving violently on a bumpy road, and thus further ensure the structural reliability of the second radiator72.

In addition, the second radiator72is substantially arranged vertically, and the first flange28is overlapped with the front side of the container30above the second radiator72without affecting the heat dissipation of the second radiator72.

Further, the detachable connection of the first flange28relative to the container30may not only facilitate the connection of the first flange28with the container30, but also facilitate the removal of the first flange28relative to the container30. Thus, the user may easily open the accommodating slot23to repair and replace the second radiator72in the accommodating slot23, which may improve user experience.

The detachable connection mode may be a fixed connection mode through fasteners, and the fasteners may be taken out for removal as needed. The fasteners may be bolts, etc. The detachable connection mode may also be a fixed connection through a snap structure. For example, the first flange28may be provided with a snap, a front side of the container30may be defined with a snap groove, and the snap is snapped in the snap groove. Of course, the detachable connection mode may also be a combination of the above two connection modes.

As shown inFIG.1-FIG.6, the driver's cab20may mainly include: a backplate21located at a front side of the second radiator72, the backplate21is defined with a first air port240, and the first air port240is directly opposite to the second radiator72. Specifically, through the arrangement that the first air port240is defined on the backplate21and the first air port240is directly opposite a rear side of the second radiator72, an air in the accommodating slot23may be exchanged with the outside through the first air port240, which may further ensure fluidity of the air in the accommodating slot23, further prevent the air in the accommodating slot23from being relatively high, which then affects the heat dissipation effect of the second radiator72in the accommodating slot23. Further, the first air port240is directly opposite to the second radiator72, such that a high-temperature air passing through the second radiator72may flow out directly from the first air port240, thereby improving an exchange efficiency between the air in the accommodating slot23and the outside air, and further improving the heat dissipation effect of the second radiator72.

As shown inFIG.2andFIG.3, the backplate21is provided with a main-seat region25, a spacing region24and an auxiliary-seat region26in a transverse direction of the all-terrain vehicle1000, and the first air port240is located in the spacing region24to supply air for the components at a rear side the backplate21. Specifically, during the normal driving of the all-terrain vehicle1000, there are drivers and passengers on the main-seat region25and auxiliary-seat region26of the backplate21, respectively, that is, front sides of the main-seat region25and the auxiliary-seat region26on the backplate21are covered by the drivers and passengers. The spacing region24is provided on a spacing area between the main-seat region25and the auxiliary-seat region26of the backplate21, and the first air port240is defined on the spacing region24, so as to make full use of an available space on the backplate21and improve space utilization of the driver's cab20. Moreover, even if the drivers and passengers cover the main-seat region25and the auxiliary-seat region26of the backplate21, the air supplied to the components at the rear side the backplate21by the first air port240cannot be affected. In this way, the air volume supplied to the rear side of the backplate21through the first air port may be ensured, such that the first air port240may be more reliable, the structural arrangement of the all-terrain vehicle1000may be more reasonable, and the structural design of the all-terrain vehicle1000may be optimized. In order to meet driving regulations in different countries, positions of the main-seat region25and the auxiliary-seat region26may be interchanged.

In addition, during the normal driving of the all-terrain vehicle1000, the air around the all-terrain vehicle1000accelerates to flow to the rear side of the driver's cab20, so as to accelerate flow rate of the air flowing to the components at the rear side the backplate21through the first air port240, which may increase the air volume of the air flowing to the components at the rear side of the backplate21in per unit time. The components at the rear side of the backplate21may include: a power unit, an exhaust pipe, a second radiator and the like. In this way, the components may effectively utilize the air during the driving of the all-terrain vehicle1000, such that the heat may be carried away by the fast flowing air, which may further improve the heat dissipation efficiency and ensure the working reliability of the components.

Thus, by the first air port240defined on the spacing region24between the main-seat region25and the auxiliary-seat region26of the backplate21, the air may be supplied from the first air port240on the backplate21of the driver's cab20to the components at the rear side of the backplate21during the normal driving of the all-terrain vehicle1000, so as to make full use of the available space on the backplate21without affecting the normal arrangement of other components, which not only increases the air volume at the rear side of the backplate21, but also improves the space utilization.

As shown inFIG.2, a cross-sectional area of an upper portion of the spacing region24decreases from up to down, and the first air port240decreases from up to down. Specifically, since user's arm needs to move on both sides of the main-seat region25and the auxiliary-seat region26when the user sits on the main-seat region25and the auxiliary-seat region26, it may be understood that when the user's arm moves, moving range of the arm gradually increases in a direction away from shoulders. In order to prevent movement of the user's arm from covering the first air port240of the spacing region24, a cross-sectional area of a side of the main-seat region25close to the spacing region24and a cross-sectional area of a side of the auxiliary-seat region26close to the spacing region24increase in a direction from up to down, such that the cross-sectional area of the upper portion of the spacing region24decreases in the direction from up to down, and the first air port240also decreases in the direction from up to down. In this way, movement area of the user's arm may always be located in the main-seat region25and the auxiliary-seat region26without covering front side area of the spacing region24and the first air port240, which may further ensure the air volume of air supplied to the components at rear side of the backplate21through the first air port240of the spacing region24. Moreover, shape of the spacing region24so arranged is fitted with shape of the first air port240, so as to avoid that the arrangement of the first air port240has too much influence on the structure of the spacing region24.

As shown inFIG.2-FIG.6, a front side of the container30is defined with a second air port324directly opposite to the second radiator72. The first air port240is an air inlet and the second air port324is an air outlet. Specifically, through the front side of the container30defined with the second air port324, the air in the accommodating slot23may be exchanged with the outside air through the second air port324, which may ensure the fluidity of the air in the accommodating slot23and prevent the high-temperature air in the accommodating slot23from affecting the heat dissipation effect of the second radiator72in the accommodating slot23. Further, through arrangement the second air port324directly opposite to the second radiator72, the high-temperature air passing through the second radiator72may flow out of the second air port324directly, thereby improving the exchange efficiency between the air in the accommodating slot23and the outside air, and further improving the heat dissipation effect of the second radiator72.

In addition, as shown inFIG.2, the second air port324and the first air port240are directly opposite to the rear side and front side of the second radiator72, respectively, to ventilate the front and rear of the accommodation tank23, so as to further improve the exchange efficiency between the air in the accommodation tank23and the outside. Further, the first air port240is configured as a honeycomb air port or grid air port, such that on the premise of ensuring the ventilation performance of the first air port240, relatively large foreign matters may be prevented from entering the accommodating slot23through the first air port240and damaging the second radiator72, which may further ensure the structural reliability of the second radiator72. Further, during the normal driving of the all-terrain vehicle1000, the air around the all-terrain vehicle1000accelerates to flow backwards as a whole. Thus, the spacing region24of the backplate21is defined with the first air port240, the outside air may accelerate to enter the accommodating slot23through the first air port240, so as to accelerate the high-temperature air in the accommodating slot23to flow out from the second air port324. Thus, circulation of the air inside and outside the accommodating slot23may be accelerated, and the heat dissipation efficiency of the second radiator72may be further improved.

As shown inFIGS.4,5and6, a first air guide strip250is arranged in the first air port240, and two ends of the first air guide strip250are connected to the opposite sides of the first air port240, respectively. The first air guide strip250may not only guide the air passing through the first air port240, such that the air flows to the designated components at the rear side of the backplate21, but also prevent the air from flowing to a wrong direction or spreading to other directions. Moreover, through guiding effect of the first air guide strip250, a flow rate of the air passing through the first air port240may be further increased, which may increase the air volume of the air supplied to the components at the rear side of the backplate21in per unit time. In addition, the arrangement of the first air guide strip250may also strengthen the structural strength of the first air port240and avoid the structure of the first air port240being too fragile to be damaged.

As shown inFIG.7, the first air guide strip250may mainly include a top plate portion251, a front plate portion252and a bottom plate portion253. The top plate portion251and the bottom plate portion253are spaced apart from each other in an up-down direction, the front plate portion252is connected between a front end of the top plate portion251and a front end of the bottom plate portion253, and a cavity254is defined among the top plate portion251, the front plate portion252and the bottom plate portion253. Specifically, the top plate portion251and the bottom plate portion253protrude towards the front side of the first air port240and are spaced apart from each other, and the front plate portion252is connected in a spacing space at the front ends of the top plate portion251and the bottom plate portion253. In this way, the first air guide strip250may protrude out of the first air port240as a whole, which may not only act as a reminder and prevent the user from covering the first air guide strip250in the case of not paying attention, but also increase a length of the first air guide strip250to guide the air and prevent the air from returning to the front side of the backplate21, so as to improve the effect of the first air guide strip250. Further, the cavity254among the top plate portion251, the front plate portion252and the bottom plate portion253may reduce weight of the first air guide strip250, such that not only may the first air guide strip250be more lightweight, but also the stability and firmness of the mounting of the first air guide strip250on the first air port240may be improved.

As shown inFIG.2-5, the driver's cab20of the all-terrain vehicle1000may also mainly include: a filter screen22arranged at the first air port240, and a plurality of vent holes221are spaced apart from each other and defined on the filter screen22. Specifically, the filter screen22is arranged on a rear side of the first air port240, such that the filter screen22may separate the components at the rear side of the backplate21from the front side of the backplate21, so as to prevent the large foreign matters at the front side of the backplate21together with the air from passing through the first air port240, which may otherwise hit and damage the component at the rear side of the backplate21. In this way, the safety of the components at the rear side of the backplate21may be ensured, and the reliability of the first air port240may be further improved.

Further, the plurality of vent holes221are spaced apart from each other and defined on the filter screen22, the ventilation of the first air port240may be improved on the premise of ensuring that the filter screen22separates the first air port240from the front side of the backplate21, so as to prevent the filter screen22from blocking or slowing down the flow of air from the first air port240to the components at the rear side of the backplate21. The filter screen22may be fully distributed with the vent holes221, and that is, a part of the filter screen22corresponding to the first air guide strip250is also defined with the vent holes221, such that the vent holes221may be evenly distributed on the filter screen22, which may reduce the manufacturing difficulty of the filter screen22. Optionally, the vent holes221may be partially distributed on the filter screen22, and that is, a part of the filter screen22corresponding to the first air guide strip250is not defined with the vent holes221, such that the vent holes221are only arranged in a ventilation gap between the corresponding first air guide strips250, which may improve the structural strength of the filter screen22.

As shown inFIGS.2and4, a filter flange222is arranged at an edge of the filter screen22. Specifically, the filter flange222is arranged towards the first air port240at the edge of the filter screen22, so as to improve sealing between the edge of the filter screen22and the first air port240, reduce air leakage from the edge of the filter screen22and the first air port240to a certain extent, and further improve the stability and firmness of the mounting of the filter screen22at the first air port240.

As shown inFIGS.2and4, the edge of the filter screen22is provided with a mounting foot223detachably mounted to the backplate21. Specifically, the mounting foot223is mounted on the edge of the filter screen22and detachably mounted on the backplate21, such that the filter screen22may be detachably and fixedly connected with the backplate21, which may not only facilitate the mounting or removal of the filter screen22, but also prevent the mounting foot223from covering the first air port240and affecting the ventilation of the first air port240since position of the mounting foot223is at the edge of the filter screen22, thereby further ensuring the ventilation of the first air port240.

As shown inFIG.2andFIG.4, the backplate21is provided with a plurality of mounting seats27around an outer circumference of the first air port240, the plurality of mounting seats27are configured to be fitted with fasteners224, and there are a plurality of mounting feet223in one-to-one correspondence with the plurality of mounting seats27. The fastener224passes through the mounting foot223to be fixedly connected with the mounting seat27. Specifically, the mounting feet223are in one-to-one correspondence with the mounting seats27, and the mounting holes are defined on the mounting feet223and the mounting seats27, respectively, and the fastener224passes through the mounting hole such that the mounting foot223and the mounting seat27are fixedly connected through the fastener224, so as to stably and fixedly mount the filter screen22on the backplate21. In this way, the reliability of the filter screen22may be further improved. In addition, by evenly distributing the plurality of mounting feet223and the plurality of mounting seats27at circumferential edges of the filter screen22and the first air port240respectively, stress at connection joints between the mounting feet223and the mounting seats27may be more uniform, such that connection stability between the filter screen22and the first air port240may be further improved.

As shown inFIG.1-FIG.3, the frame10may mainly include: an underframe11and a supporting frame12, the driver's cab20and the power unit50are arranged on the underframe11, respectively, the supporting frame12is arranged above the underframe11and between the driver's cab20and the container30, and the second radiator72is arranged on the supporting frame12. Specifically, the supporting frame12is arranged above the underframe11and the second radiator72is mounted on the supporting frame12, such that the stability and firmness of the mounting of the second radiator72is improved. Moreover, the spacing directions of the second air port324, the second radiator72and the first air port240are parallel to a driving direction of the all-terrain vehicle1000all along, so as to further improve the heat dissipation efficiency of the second radiator72.

As shown inFIG.2andFIG.6, the all-terrain vehicle1000may also mainly include: a water jug60arranged on a side of the second radiator72and in communication with the second radiator72. When a temperature of the second radiator72is higher than a set value, water in the water jug60may further cool the second radiator72. In this way, the temperature of the second radiator72may be maintained within a relatively normal range, so as to ensure that the second radiator72may continuously and stably cool off the power unit50, which may further improve the reliability of the second radiator72.

As shown inFIG.1, the power unit50is arranged directly below the container30. The power unit50may mainly include: an engine and/or an electric motor, a temperature of the engine or electric motor rises when the engine or electric motor is working, and the second radiator72may be connected with the cooling channel of the power unit50to dissipate heat and cool off the engine or the electric motor, such that the engine or the electric motor may work normally, which prevent the engine or the electric motor from spontaneous combustion or damage due to excessive temperature of the engine or the electric motor. Thus, the reliability of the electric motor may be improved.

As shown inFIG.7, a groove2521is defined on the front plate portion252, and a length direction of the groove2521is the same as that of the front plate portion252. When the air passes through the first air port240and hits the front plate portion252, the groove2521on the front plate portion252may have a transitional buffer effect on the air, which may prevent the air from hitting the front plate portion252and causing noise at the first air port240. Thus, air noise of all-terrain vehicle1000may be reduced. In addition, the arrangement of the groove2521may also effectively strengthen the structural strength of the front plate portion252.

Further, as shown inFIG.1-FIG.6, the power unit50is arranged on the frame10, a cooling channel51is defined within the power unit50, and the first radiator71at a front side of frame10of the all-terrain vehicle1000is connected with the cooling channel. The first radiator71is arranged on the frame10and in front of the driver's cab20, and the first radiator71is communicated with the cooling channel51. The second radiator72is arranged on the frame10and is located behind the driver's cab20, and the second radiator72is communicated with the cooling channel51. Specifically, the power unit50, the first radiator71and the second radiator72are all arranged on the frame10, which may ensure the stability and firmness of the mounting of the power unit50, the first radiator71and the second radiator72on the all-terrain vehicle1000. In addition, the first radiator71and the second radiator72are arranged in front and rear of the driver's cab20, respectively, and on the premise of ensuring the stability and firmness of the arrangement of the first radiator71and the second radiator72, the first radiator71and the second radiator72may make full use of the available space on the all-terrain vehicle1000and improve the space utilization rate of the all-terrain vehicle1000. Thus, the structure of the all-terrain vehicle1000may be more compact.

Further, as shown inFIG.8, each of the first radiator71and the second radiator72is communicated with the cooling channel51of the power unit50, and the cooling channel51is a two-way channel. When the power unit50drives the all-terrain vehicle1000to drive normally, the temperature in the power unit50rises, and the liquid medium52in the power unit50absorbs the heat of the power unit50to reduce the temperature of the power unit50and maintain the temperature of the power unit50within a reasonable range. The liquid medium52may enter the first radiator71and the second radiator72through the cooling channel51, and the first radiator71and the second radiator72may exchange the heat in the liquid medium52with the surrounding air, such that the surrounding air may take away the heat in the liquid medium52to reduce the temperature of the liquid medium52and maintain the temperature of the liquid medium52within a reasonable range. The liquid medium52with normal temperature then enters the power unit50through the cooling channel51to dissipate heat and cool off the power unit50, such that the first radiator71and the second radiator72may achieve the cooling circulation circuit to cool off the power unit50.

In this way, the first radiator71and the second radiator72are both arranged on the all-terrain vehicle1000, compared with the all-terrain vehicle with only the first radiator71on a front side of a vehicle body, when the power unit50works at high power, large amount of heat is generated by the power unit50, when the heat dissipation effect of the first radiator71on the power unit50is insufficient, the second radiator72may be added to increase the heat dissipation effect of the power unit50, so as to ensure that the power unit50may work continuously and stably, and then improve the reliability of the all-terrain vehicle1000.

In addition, the first radiator71may be a main radiator and the second radiator72may be an auxiliary radiator. When power of the power unit50is normal and the heat dissipation effect of the first radiator71on the power unit50is sufficient, the second radiator72may be in a shutdown state. In this way, on the premise of ensuring that the temperature of the power unit50is within a reasonable range and the power unit50may work normally, unnecessary waste caused by the operation of the second radiator72may be avoided, which may not only prolong a service life of the second radiator72, but also reduce energy consumption of the all-terrain vehicle1000.

Of course, during the cold-start of the power unit50, the liquid medium52in the cooling channel51may also quickly return to the cooling channel51without passing through the first radiator71and the second radiator72. In this way, the temperature of the power unit50may rise rapidly and be within a reasonable range.

Thus, the first radiator71is arranged in front of the driver's cab20, the second radiator72is arranged in rear of the driver's cab20, and each of the first radiator71and the second radiator72is communicated with the cooling channel51. In this way, a layout of the first radiator71and the second radiator72is more reasonable such that the structure of the all-terrain vehicle1000is more compact, and the heat dissipation effect of the all-terrain vehicle1000on the power unit50is further improved, so as to further improve the reliability of the all-terrain vehicle1000.

Optionally, as shown inFIG.8, the first radiator71, the second radiator72and the cooling channel51are connected in series, such that a high-temperature liquid medium52in the power unit50may first enter the first radiator71from the cooling channel51for heat dissipation and cooling, and then enter the second radiator72for a secondary cooling. In this way, the heat dissipation and cooling effect of the first radiator71and the second radiator72on the liquid medium52may be better, such that the heat dissipation and cooling effect of the first radiator71and the second radiator72on the power unit50may be improved. It should be explained that when the heat dissipation effect of the first radiator71is sufficient and the second radiator72is in the shutdown state, the liquid medium52may still flow from the second radiator72instead of being blocked at the second radiator72. However, at this time, the second radiator72does not dissipate heat the liquid medium52. In addition, with such the arrangement, fewer pipelines are required, which may not only reduce the mounting cost, but also save the mounting space.

Optionally, the first radiator71and the second radiator72are connected in parallel and each of the first radiator71and the second radiator72is connected in series with the cooling channel51, such that the liquid medium52in the power unit50may enter the first radiator71and the second radiator72simultaneously from the cooling channel51, so as to increase a flow rate of the liquid medium52entering the first radiator71and the second radiator72in per unit time, which may also improve the heat dissipation and cooling effect of the first radiator71and the second radiator72on the power unit50.

Further, the first radiator71, the second radiator72and the cooling channel51may be selectively arranged in series according to the different power of different all-terrain vehicles1000, the different structure of different all-terrain vehicles1000and the specific process requirements, or after connected in parallel, the first radiator71and the second radiator72may be arranged in series with the cooling channel51. In this way, the first radiator71and the second radiator72may be mounted and applied to different all-terrain vehicles1000, and the applicability of the first radiator71and the second radiator72may be improved.

As shown inFIG.1-FIG.6, the power unit50is closer to the second radiator72than the first radiator71, a first pipeline73is connected between a water outlet of the first radiator71and a water inlet of the second radiator72, and a second pipeline74is connected between a water outlet of the second radiator72and a water inlet of the cooling channel51, and a third pipeline75is connected between a water outlet of the cooling channel51and a water inlet of the first radiator71. Specifically, the liquid medium52in the power unit50may flow from the water outlet of the cooling channel51to the third pipeline75connected with the cooling channel51, and from the third pipeline75to the water inlet of the first radiator71. After the first radiator71dissipates and cools off the liquid medium52, the liquid medium52may flow out of the water outlet of the first radiator71and enter the first pipeline73, then enters the water inlet of the second radiator72through the first pipeline73, and afterwards flows into the second radiator72from the water inlet of the second radiator72. After the liquid medium52is subjected to a secondary heat dissipation of the second radiator72and the temperature of the liquid medium52is reduced to a reasonable range by heat dissipation, the liquid medium52may flow into the second pipeline74from the water outlet of the second radiator72, then flow back into the cooling channel51through the second pipeline74, afterwards flow back into the power unit50from the cooling channel51, and then recycle, such that the cooling circulation circuit of the first radiator71and the second radiator72to the power unit50may be formed.

Thus, not only the reliability of the first radiator71and the second radiator72for the cooling circulation of the power unit50may be ensured, but also the pipelines through which the liquid medium52passes are simple and direct, so as to improve speed of the cooling circulation, and prevent the liquid medium52from stagnation and jamming in the pipelines. In addition, the cooling circulation circuit may also be provided with a water pump to supply power for the circulation of the liquid medium52, and the water pump may be connected with the power unit50in a transmission manner, that is, the power unit50may drive the water pump simultaneously during working, so as to ensure that the liquid medium52may participate in the heat exchange when the power unit50starts to work.

The first radiator71is provided with a first fan, and the second radiator72is provided with a second fan. The all-terrain vehicle1000further includes a controller electrically connected with the first fan and the second fan, respectively, so as to control working states of the first fan and the second fan. Specifically, the first fan and the second fan may accelerate the flow rate of air around the first radiator71and the second radiator72respectively, so as to increase the heat exchange rate between the air around the first radiator71as well as the second radiator72and the liquid medium52in the first radiator71as well as the second radiator72. Thus, the air around the first radiator71and the second radiator72may take away the heat in the liquid medium52much faster, such that the heat dissipation efficiency of the first radiator71and the second radiator72may be improved.

Further, the working states of the first fan and the second fan are accurately controlled by the controller. When power of the power unit50is normal and the heat dissipation effect of the first radiator71on the power unit50is sufficient, the controller may control the first fan to work continuously and control the second fan to stop working, so as to ensure that the temperature of the power unit50is within a reasonable region. On the premise that the power unit50may work normally, unnecessary waste caused by the rotation of the second fan may be avoided, which may not only prolong a service life of the second fan, but also reduce energy consumption of the all-terrain vehicle1000.

The first radiator71has a first heat dissipation surface, an area of the first heat dissipation surface is S1, the second radiator72has a second heat dissipation surface, and an area of the second heat dissipation surface is S2. S1and S2satisfy relationship: 0.451≤S2≤S1. Specifically, the second heat dissipation surface of the second radiator72is arranged to be smaller than the first heat dissipation surface of the first radiator71, the unnecessary waste caused by the excessive area of the second heat dissipation surface may be avoided on the premise of ensuring the heat dissipation performance of the second radiator72. Further, the second heat dissipation surface may be set within a suitable range to prevent the second heat dissipation surface from being too small, which causes a poor heat dissipation effect of the second radiator72on the power unit50. In this way, the application effect of the first radiator71and the second radiator72on the all-terrain vehicle1000may be improved.

In addition, the first radiator71is arranged at the front side of the frame10of the all-terrain vehicle10000, and is connected with the cooling channel of the engine or electric motor. The first radiator71and the second radiator72between the driver's cab20and the container30may dissipate the heat of the engine or electric motor together, which may further improve the cooling speed of the power unit50, so as to further improve the reliability of the all-terrain vehicle1000.

In the description of the present disclosure, it should be understood that terms such as “central,” “longitudinal,” “transverse,” “length,” “width,” “thickness,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” “clockwise,” “counterclockwise,” “axial,” “radial” and “circumferential” should be construed to refer to the orientation as then described or as shown in the drawings under discussion. These relative terms are only for convenience of description and do not indicate or imply that the device or element referred to must have a particular orientation, or be constructed and operated in a particular orientation. Thus, these terms shall not be construed as limitation on the present disclosure.

Reference throughout this specification to “an embodiment,” “some embodiments,” “an exemplary embodiment,” “an example,” “a specific example,” or “some examples,” means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. Thus, the exemplary descriptions of the above terms throughout this specification are not necessarily referring to the same embodiment or example.

Although embodiments of the present disclosure have been shown and described, it would be appreciated by those skilled in the art that various changes, modifications, alternatives and variations may be made in the embodiments without departing from principles and purposes of the present disclosure. The scope of the present disclosure is defined by the claims and their equivalents.