New energy truck chassis and vehicle

Abstract

The utility model discloses a new energy truck chassis and vehicle belong to vehicle technical field, including chassis shell, and the chassis shell is provided with the containing cavity of upper end opening, and the sidewall of chassis shell is provided with the air inlet hole, and the sidewall in the side wall length direction of the air inlet hole opening position is seted up with the sliding slot, and the filter plate of being along the sliding slot sliding is seted up in the sliding slot, and the air inlet hole outer edge of filter plate side is provided with the scraping unit for scraping the filter plate surface dust, and the exhaust hole is seted up on the side plate of air inlet hole opposite side, and the exhaust hole is located on same axis with air inlet hole, and the fan assembly is seted up in the exhaust hole, and the exhaust and air intake of containing cavity are realized through the switching of fan blade positive and negative rotation of fan assembly. The utility model discloses through the combination of active exhaust and passive air intake, and effectively improves the heat dissipation efficiency, can satisfy the heat dissipation demand of new energy truck full load operation, and the filter plate can effectively intercept dust, and the self -cleaning function prolongs the life.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle technology, and in particular relates to a new energy truck chassis and vehicle. Background Technology

[0002] With the rapid development of the new energy vehicle industry, new energy trucks have been widely used in logistics and transportation due to their advantages of low energy consumption and low emissions. However, core components of new energy trucks, such as power battery packs, drive motors, and electronic control systems, generate a lot of heat during operation. If heat dissipation is not timely or uneven, the temperature of these components will become too high, which will not only reduce their working efficiency but also seriously affect their service life and even cause safety hazards.

[0003] Chinese patent CN218141768U discloses a chassis structure for a new energy vehicle, belonging to the field of new energy vehicle technology. It addresses the problem that existing vehicle chassis cannot automatically improve heat dissipation when temperatures rise and cannot utilize the wind generated during vehicle operation to cool battery packs in multiple locations. The structure includes a chassis with a support plate fixedly mounted on its side. A connecting frame is fixedly mounted on the surface of the support plate. Openings are formed on both the front and rear sides of the connecting frame, and inner grooves are formed on the inner walls of the openings. A ventilation plate is movably mounted inside the inner grooves. The ventilation plate is connected to the connecting frame via a shape memory alloy spring. Fixing frames are fixedly mounted on the left and right sides of the support plate, and a first folding plate is provided on the rear side of the fixing frames. This application utilizes shape memory alloy springs in conjunction with a ventilation plate whose upper part is a solid structure and whose lower part is a mesh structure to achieve the function of automatically improving heat dissipation at high temperatures. The bending portion at the front end of the folding plate enables efficient heat dissipation of battery packs in multiple locations.

[0004] The aforementioned patent uses airflow generated during vehicle movement to dissipate heat from the battery pack. However, during prolonged use, outside air enters the battery pack, and a large amount of dust accumulates on it. This dust obstructs the heat dissipation effect of the battery pack, and its heat dissipation structure depends on the vehicle's driving state. When the vehicle is stationary or moving at low speed, the heat dissipation efficiency drops significantly. Therefore, improvements are needed. Summary of the Invention

[0005] To address the problems existing in the prior art, this utility model provides a new energy truck chassis and vehicle. By combining active exhaust and passive air intake, it effectively improves heat dissipation efficiency and can meet the heat dissipation requirements of new energy trucks when running at full load. The filter plate can effectively intercept dust, and the self-cleaning function extends its service life. It can maintain stable heat dissipation whether driving, stationary, or at low speed.

[0006] This utility model is implemented as follows: On the one hand, it provides a new energy truck chassis, including a chassis shell. The chassis shell is provided with a receiving cavity with an upper opening for accommodating core components such as a power battery pack, a drive motor, and an electronic control system. An air inlet is provided on the side wall of the chassis shell. A sliding groove is provided in the side wall at the opening position of the air inlet along the length of the side wall. A filter plate that can slide along the sliding groove is provided in the sliding groove. A scraping part for scraping off dust accumulated on the surface of the filter plate is provided on the outer edge of the air inlet facing the filter plate. An exhaust port is provided on the side plate opposite to the air inlet. The exhaust port and the air inlet are located on the same axis. A fan assembly is provided inside the exhaust port. The exhaust and intake of the receiving cavity are achieved by switching the forward and reverse rotation of the fan blades in the fan assembly.

[0007] Furthermore, a ball screw assembly is provided in the slide groove, the nut in the ball screw assembly is connected to the filter plate, the screw in the ball screw assembly is arranged along the length direction of the slide groove, and the screw in the ball screw is connected to the drive motor through a transmission component.

[0008] Furthermore, an air intake shroud is provided on the outer surface of the side panel located at the air intake port.

[0009] Furthermore, the air intake shroud has a trumpet-shaped structure, and the small-diameter end of the air intake shroud is connected to the air intake hole.

[0010] Furthermore, a partition is provided inside the chassis housing, which divides the accommodating cavity into a first chamber and a second chamber; corresponding air inlets and exhaust outlets are respectively provided on the side plates located on both sides of the first chamber and the second chamber.

[0011] On the other hand, a vehicle is provided, comprising any of the chassis described above.

[0012] The advantages and technical effects of this utility model are as follows: By adopting the above technical solution, the combination of active exhaust and passive air intake effectively improves heat dissipation efficiency, which can meet the heat dissipation requirements of new energy trucks when running at full load. The filter plate can effectively intercept dust, and the self-cleaning function extends the service life. Stable heat dissipation can be maintained regardless of whether the vehicle is driving, stationary, or at low speed. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure provided in an embodiment of the present utility model.

[0014] Figure 2 This is a top view of the overall structure provided in an embodiment of this utility model.

[0015] Figure 3 This is a schematic diagram of the internal structure of the slide provided in an embodiment of the present invention.

[0016] Figure 4 This is a partial enlarged view of point A provided in an embodiment of this utility model.

[0017] Figure 5 This is a partial enlarged view of section B provided in an embodiment of this utility model.

[0018] Figure 6 This is a partial enlarged view of point C provided in an embodiment of this utility model.

[0019] In the diagram: 1. Chassis housing; 2. Air inlet; 3. Slide groove; 4. Receiving groove; 5. Exhaust port; 6. Filter plate; 7. Air inlet shroud; 8. Baffle plate; 9. Fan assembly; 9-1. Rotating motor; 9-2. Fan blade; 10. Drive motor; 11. Drive gear; 12. Driven gear; 13. Screw in the lead screw and nut assembly; 14. Nut in the lead screw and nut assembly. Detailed Implementation To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0020] It should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] like Figures 1 to 6 As shown, this application provides a new energy truck chassis, including a chassis housing 1. The chassis housing 1 has an upper-opening receiving cavity for accommodating core components such as a power battery pack, motor, and electronic control system. An air inlet 2 is provided on the side wall of the chassis housing 1. A groove 3 is formed along the length of the side wall at the opening of the air inlet 2. A filter plate 6, which can slide along the groove 3, is provided within the groove 3. Specifically, the filter plate 6 is used to filter the air entering through the air inlet 2. The filter plate 6 adopts a composite structure of high-temperature resistant activated carbon filter and metal mesh, which can filter dust, particulate matter, and moisture in the air, preventing them from adhering to the surface of the heating components after entering the chassis housing 1. A scraping part is provided on the outer edge of the air inlet 2 facing the filter plate 6 for scraping off dust accumulated on the surface of the filter plate 6.

[0022] An exhaust port 5 is provided on the side plate opposite to the air inlet 2. The exhaust port 5 and the air inlet 2 are located on the same axis. A fan assembly 9 is provided inside the exhaust port 5. The exhaust and intake of the receiving cavity are realized by switching the forward and reverse rotation of the fan blades 9-2 in the fan assembly 9.

[0023] In one embodiment, the fan assembly 9 includes a frame, fan blades 9-2 and a rotating motor 9-1. The fan blades 9-2 and the rotating motor 9-1 are disposed in the frame. The fan blades 9-2 have multiple blades and are pivotally connected to the rotating motor 9-1. The rotating motor 9-1 drives and controls the fan blades 9-2 to rotate. Each blade of fan blade 9-2 has an inner surface and an outer surface. The relative angles of the inner surface and the relative angles of the outer surface are the same, so that fan blade 9-2 can provide nearly equal performance when rotating in both directions.

[0024] The rotating motor 9-1 includes at least a stator, a rotor and a bearing. The stator is located at the center of the frame, the rotor is located in the fan blade 9-2 and is arranged around the outside of the axis of the fan blade 9-2, and the bearing is located at the axis of the fan blade 9-2. The bearing and the stator are pivotally connected to each other, and the rotor is sleeved on the outside of the stator.

[0025] The frame is adapted to the outline of the exhaust port 5 and can be square or circular.

[0026] The rotating motor 9-1 drives the fan blades 9-2 to rotate at high speed, quickly expelling the hot air inside the chassis housing 1 from the exhaust port 5, creating a negative pressure inside the chassis housing 1. At this time, the outside cold air enters through the air inlet 2 under the action of the air pressure difference, forming a continuous air convection. This component is not limited by the vehicle's driving status. Even if the truck is stationary or moving at low speed, it can still maintain efficient heat dissipation through active exhaust. The fan can rotate in the opposite direction to help clean the dust on the filter plate 6.

[0027] Furthermore, a ball screw assembly is provided within the slide groove 3. The nut 14 in the ball screw assembly is connected to the filter plate 6, and the screw 13 in the ball screw assembly is arranged along the length of the slide groove 3. The screw 13 in the ball screw is connected to the drive motor 10 through a transmission component. In one embodiment, the transmission component is a set of meshing bevel gears, wherein the driving gear 11 is mounted on the output shaft of the drive motor 10, and the driven gear 12 is mounted on the screw 13. The drive motor 10 drives the driving gear 11 to rotate, which in turn drives the driven gear 12 and the screw 13 to rotate through gear meshing, ultimately achieving the sliding control of the filter plate 6. This structure eliminates the need for manual operation, facilitates automated maintenance, and improves the intelligence level of the chassis. A receiving groove 4 is provided in the side plate of the chassis housing 1, and the drive motor 10 and the transmission component are disposed within the receiving groove 4.

[0028] Furthermore, an air intake shroud 7 is provided on the outer surface of the side plate located at the air intake port 2. A guide strip is provided on the inner wall of the air intake shroud 7. Preferably, the air intake shroud 7 has a trumpet-shaped structure, with its smaller diameter end connected to the air intake port 2. The larger diameter end of the air intake shroud 7 faces the direction of the truck's movement, utilizing the "ram effect" of the oncoming airflow during vehicle movement to increase the air intake volume and improve intake efficiency.

[0029] Furthermore, a partition 8 is provided inside the chassis housing 1, which divides the accommodating cavity into a first chamber and a second chamber; corresponding air inlets 2 and exhaust ports 5 are respectively provided on the side plates on both sides of the first and second chambers. The partition 8 separates different heat-generating components, preventing heat from affecting each other and ensuring that each component can operate at a suitable temperature; the heat dissipation fins at the bottom of the chassis housing 1 further enhance heat dissipation capacity and improve overall heat dissipation performance.

[0030] In one embodiment, two air inlets 2 are provided on one side plate of the chassis housing 1, and the two air inlets 2 are respectively connected to the first chamber and the second chamber. Two exhaust holes 5 are provided on the side plate opposite to the two air inlets 2. Two filter plates 6 are provided in the slide groove 3, and the two filter plates 6 are correspondingly positioned at the two air inlets 2. Two nuts 14 are provided on the screw 13 of the ball screw pair, and are respectively connected to the two filter plates 6. Depending on the position of the two air inlets 2, when the two filter plates 6 move in the same direction, the thread direction on the screw 13 of the ball screw pair is the same; when the two filter plates 6 move in opposite directions, the thread direction of the thread segment on the screw 13 of the ball screw pair controlling the different filter plates 6 is opposite.

[0031] On the other hand, a vehicle is provided, comprising any of the chassis described above.

[0032] Working principle: When the vehicle is moving: the air intake shroud 7 uses the oncoming airflow and the impact effect to draw in air, which is filtered by the filter plate 61 and then enters the chassis housing 1. The fan blades 9-2 of the fan assembly 9 rotate in the forward direction, expelling the hot air in the housing from the exhaust port 5, forming a continuous convection to remove heat. When the vehicle is stationary, the fan assembly 9 works independently. The rotation of the fan blades 9-2 creates a negative pressure inside the chassis housing 1, and outside air enters through the air intake port 2 and the filter plate 6 to complete heat dissipation. When the filter plate 6 accumulates dust to a certain extent, the drive motor 10 starts and drives the screw 13 in the ball screw pair to rotate through the bevel gear transmission. This causes the nut 14 in the ball screw pair to move the filter plate 6 in the slide groove 3. At this time, the scraping part on the inner wall of the air intake port 2 scrapes the dust off the surface of the filter plate 6. At the same time, the motor 9-1 rotates to drive the fan blades 9-2 to rotate in the reverse direction, blowing the dust out from the horn-shaped air intake shroud 7. After cleaning is completed, the filter plate 6 is reset.

[0033] By adopting the above technical solution, the combination of active exhaust and passive air intake effectively improves heat dissipation efficiency and can meet the heat dissipation requirements of new energy trucks when running at full load. The filter plate 6 can effectively intercept dust, and the self-cleaning function extends its service life. It can maintain stable heat dissipation whether driving, stationary or at low speed.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A new energy truck chassis, characterized in that, The system includes a chassis housing with an upper opening and an air inlet on the side wall. A groove is provided along the length of the side wall at the opening of the air inlet. A filter plate that can slide along the groove is provided in the groove. A scraping part for scraping off dust on the surface of the filter plate is provided on the outer edge of the air inlet facing the filter plate. An exhaust port is provided on the side plate opposite to the air inlet. The exhaust port and the air inlet are located on the same axis. A fan assembly is provided inside the exhaust port. The exhaust and intake of the receiving cavity are achieved by switching the forward and reverse rotation of the fan blades in the fan assembly.

2. The new energy truck chassis according to claim 1, characterized in that, A ball screw assembly is provided in the slide groove. The nut in the ball screw assembly is connected to the filter plate. The screw in the ball screw assembly is arranged along the length of the slide groove. The screw in the ball screw is connected to the drive motor through a transmission component.

3. The new energy truck chassis according to claim 1, characterized in that, An air intake cover is provided on the outer surface of the side plate located at the air intake port.

4. The new energy truck chassis according to claim 3, characterized in that, The air intake cover has a trumpet-shaped structure, and the small-diameter end of the air intake cover is connected to the air intake hole.

5. The new energy truck chassis according to claim 1, characterized in that, The chassis housing is provided with a partition, which divides the accommodating cavity into a first chamber and a second chamber; corresponding air inlets and exhaust outlets are respectively provided on the side plates located on both sides of the first chamber and the second chamber.

6. A vehicle, characterized in that, The chassis includes any one of claims 1 to 5.

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