New energy automobile cooling system

Abstract

The invention relates to the technical field of new energy automobile cooling equipment, in particular to a new energy automobile cooling system which comprises cooling liquid, a radiator, a control center and a cooling plate located in a battery pack and the control center, the cooling plate comprises an upper shell and a lower shell, the lower shell is provided with a liquid injection port, the upper shell is provided with a liquid discharge port, and the liquid discharge port is communicated with the cooling liquid. A pin roller which can move to the lower shell and is used for transferring internal heat near the inner wall of the upper shell into cooling liquid of the lower shell is arranged in the upper shell, a supporting mechanism used for moving the pin roller is arranged on the inner wall of the upper shell, and a pushing piece used for driving the pin roller to move is arranged on the inner wall of the upper shell; the inner wall of the upper shell is further provided with a thrust mechanism used for driving the pushing piece to move, and the inner wall of the lower shell is provided with a heat conduction rod capable of extending into the cavity of the upper shell. The method is well applied to new energy automobile manufacturers.

Description

Technical Field

[0001] The present invention belongs to the technical field of cooling equipment for new energy vehicles, and in particular relates to a cooling system for new energy vehicles. Background Art

[0002] With the increasing attention paid to environmental protection and sustainable development around the world, the new energy vehicle industry has developed rapidly. New energy vehicles, especially pure electric vehicles, have gradually become the development direction of the future automotive industry with their advantages such as zero emissions, low noise and high efficiency. However, while new energy vehicles are improving their performance, they are also facing some technical challenges, among which the design and optimization of the cooling system is a crucial link. The cooling system of new energy vehicles is mainly responsible for the heat dissipation of key components such as power batteries, motors and controllers.

[0003] Liquid cooling is a common cooling method for new energy vehicles. The cooling plate is the core component of liquid cooling. The coolant delivery unit delivers the coolant to the cooling plate. The heat is transferred to the flowing coolant through the cooling plate shell, and the heat is discharged at the radiator position to achieve cooling. However, the cooling plate is generally divided into an upper shell close to the heat source and a lower shell away from the heat source. The cooling plate is generally made of metal. Due to the physical properties of thermal conductivity, the heat taken away by the coolant in the lower shell is far less than that in the upper shell, which causes resource loss.

[0004] A Chinese patent with application number 2021105160863 discloses a fuel cell cooling plate for new energy vehicles, including a plate body, a cavity is provided inside the plate body, and a first cooling water inlet is provided at the lower end of the plate body, a cooling water outlet is provided at the upper end of the plate body, a first cooling groove, a second cooling groove and a third cooling groove are provided in the cavity, one end of the third cooling groove is connected to the cooling water outlet, and a second cooling water inlet is provided at the upper end of the plate body. This technical solution is achieved by arranging three cooling grooves in the plate body, the first cooling groove, the second cooling groove and the third cooling groove together form a rectangle, and the high-temperature water area and the low-temperature water area between the first cooling groove, the second cooling groove and the third cooling groove are corresponding to each other, and can exchange heat and neutralize with each other, so that when the entire cooling plate is working, the temperature difference between the various areas is small and the cooling effect is better.

[0005] Although the above patent sets up multiple cooling grooves, the coolant in the flow process and far away from the heat source cannot absorb a large amount of heat. Summary of the invention

[0006] In order to increase the amount of heat carried away by the coolant in a cooling plate of a new energy vehicle and away from a heat source during its flow, the present invention provides a cooling system for a new energy vehicle.

[0007] The technical solution is that the cooling system of a new energy vehicle includes a coolant, a radiator, a control center, and a cooling plate located in a battery pack and the control center, wherein the cooling plate includes an upper shell and a lower shell, and both the upper shell and the lower shell are provided with cavities with the same structure for injecting coolant, an injection port for the coolant to enter is provided at one end of the lower shell, and a discharge port is provided at one end of the upper shell, a roller is provided in the upper shell which can be moved to the lower shell and is used to transfer the internal heat near the inner wall of the upper shell to the coolant in the lower shell, a supporting mechanism for moving the roller is provided on the inner wall of the upper shell, a pushing member for driving the roller to move is provided on the inner wall of the upper shell, a thrust mechanism for driving the pushing member to move is also provided on the inner wall of the upper shell, and a heat-conducting rod which can extend to the cavity of the upper shell is provided on the inner wall of the lower shell, and the heat-conducting rod is rotatable.

[0008] Preferably, the supporting mechanism includes a ring frame for roller movement, wherein the ring frames are in plurality and are arranged in an array structure in the upper shell, the ring frame is in a circular cage-like structure, the roller is in a cylindrical structure, sliding ends are provided at both ends of the length direction of the roller, the ring frame includes a left end plate and a right end plate fixed to the inner wall of the upper shell, the left end plate and the right end plate are provided with annular grooves used in conjunction with the sliding ends, and the rollers are in plurality and are arranged in sequence along the ring frame.

[0009] Preferably, a groove is provided in the roller, and there are two grooves and they are symmetrically arranged about the center line of the roller. An extension plate for being removable from the groove is rotatably connected in the groove by a torsion spring, and limiting ends with an integral structure are provided at both ends in the length direction of the extension plate, and slide rails for limiting the position of the limiting ends are provided on the left end plate and the right end plate, and an open groove is provided at a position of the slide rail close to the upper shell, and when the roller moves to the position of the open groove, the limiting end is released, and the two extension plates will move out of the groove and close to the inner wall of the upper shell under the action of the torsion spring, and a guide bar is provided at one end of the slide rail, forming a structure in which the limiting end and the extension plate move into the slide rail under the limitation of the guide bar after passing through the open groove.

[0010] Preferably, a heat conducting plate is provided on the extension board, and there are multiple heat conducting plates which are evenly spaced along the length direction of the extension board. A recessed groove which is connected to the groove and is used to place the heat conducting plate is provided in the roller. When the extension board moves out of the groove, the heat conducting plate moves with the extension board and the end of the heat conducting plate away from the extension board is close to the roller.

[0011] Preferably, the pushing member includes a toggle wheel, a horizontal axis extending to the outside of the right end plate is provided in the middle position of the left end plate, the horizontal axis is rotatably connected to the toggle wheel, a toggle plate is provided on the toggle wheel, the toggle plates are provided in a one-to-one correspondence with the rollers, each of the toggle plates is provided with a slot, the sliding end extends to the toggle plate position through the right end plate and is engaged with the slot, forming a structure in which the rollers are driven to rotate along the ring frame after the toggle plate rotates.

[0012] Preferably, the thrust mechanism includes a pipeline with a mesh structure, and an impact tube extending to the position of the dial plate is arranged on the pipeline. There are multiple impact tubes and they are arranged one by one corresponding to the dial wheels. The pipeline is connected with a liquid inlet pipe, and the coolant delivery unit is provided with a branch pipe. The liquid inlet pipe extends to the outside of the upper shell through the upper shell and is connected with the branch pipe through a pressure pump.

[0013] Preferably, a support is provided on the lower shell, and the support is in multiple numbers and distributed in an array. The support is rotatably connected to a heat-conducting rod via a long axis, one end of the long axis extends to the outside of the cooling plate through the lower shell and is key-connected to a sprocket, and a motor and a chain for driving each sprocket to rotate are provided on the lower shell.

[0014] The beneficial effect of the present invention is that a roller is arranged in the cooling plate and moves from the inner wall of the upper shell to the inner wall of the lower shell. The roller is made of the same material as the upper shell. The roller absorbs heat near the inner wall of the upper shell containing more heat and then moves to the lower shell, and contacts with the coolant to achieve heat exchange, thereby increasing the absorption of heat of the coolant in the lower shell. The thrust mechanism is arranged to ensure the movement of the roller and achieve full utilization of the coolant. The setting of the extension plate on the roller is used to increase the contact area between the roller and the upper shell, and to take away more heat. The setting of the heat conducting plates with uniform intervals on the extension plate is used for better heat transfer. The setting of the groove and the concave groove is used to place the extension plate and the heat conducting plate. The setting of the slide rail is used to ensure that the roller shrinks into the groove when it does not contact the upper shell, and reduce the resistance of the coolant when moving. The setting of the open groove, and with the cooperation of the torsion spring, ensure that the extension plate is moved to a position near the inner wall of the upper shell, and then the extension plate is moved out through the groove; The arrangement of the left end plate and the right end plate, and the cooperation of the annular groove and the sliding end, provide a track for the movement of the roller. The left end plate is provided with a cross bar passing through the right end plate, and a toggle wheel and a toggle plate are arranged on the cross bar. Under the action of the card slot on the toggle plate used in cooperation with the sliding end, the toggle plate drives the roller to move. The arrangement of the thrust mechanism provides power for the rotation of the toggle wheel and the toggle plate. A rotatable heat-conducting rod is arranged on the lower shell, and when the heat-conducting rod is arranged vertically on the lower shell, it is used to transfer part of the heat of the coolant in the upper shell close to the heat source to the coolant in the lower shell. The sprocket at the end of the long shaft is arranged to realize the overall rotation of the heat-conducting rod driven by the long shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of a cooling plate of a cooling system of a new energy vehicle of the present invention; Figure 2 The cooling plate structure of the cooling system of the new energy vehicle of the present invention Figure 1 The enlarged view of point A in the middle; Figure 3 is a cross-sectional view of a roller of a cooling system of a new energy vehicle of the present invention; Figure 4This is a front view of the right end plate of the new energy vehicle cooling system of the present invention; Figure 5 It is a side view of the roller of the cooling system of the new energy vehicle of the present invention in a normal state; Figure 6 It is a side view of the cooling system of the new energy vehicle of the present invention in use; Figure 7 It is a top view of a cooling plate of a cooling system of a new energy vehicle of the present invention; Among them, 1 is an upper shell, 2 is a lower shell, 3 is a cavity, 4 is a liquid filling port, 5 is a liquid discharge port, 6 is a roller, 7 is a heat conducting rod, 8 is a sliding end, 9 is a left end plate, 10 is a right end plate, 11 is a ring groove, 12 is a groove, 13 is an extension plate, 14 is a limit end, 15 is a slide rail, 17 is a heat conducting plate, 18 is a recessed groove, 19 is a toggle wheel, 20 is a horizontal axis, 21 is a toggle plate, 23 is a pipeline, 24 is an impact tube, 25 is a liquid inlet pipe, 26 is a support, 27 is a long axis, 28 is a sprocket, and 29 is a guide strip. DETAILED DESCRIPTION

[0016] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings.

[0017] Embodiment 1: According to the specification Figures 1 to 3As shown, the cooling system of a new energy vehicle includes a coolant, a radiator, a control center, and a cooling plate located in the battery pack and the control center. The above belongs to the prior art and will not be described one by one here. The cooling plate includes an upper shell 1 and a lower shell 2. Both the upper shell 1 and the lower shell 2 are provided with a cavity 3 with the same structure and used for injecting coolant. An injection port 4 for the coolant to enter is provided at one end of the lower shell 2. A drain port 5 is provided at one end of the upper shell 1. The coolant flows in the cavity 3 between the upper shell 1 and the lower shell 2, and takes away the heat transferred from the upper shell 1 to the coolant. Since the upper shell 1 is closer to the heat source and the heat transfer efficiency of the metal is greater than the heat transfer efficiency of the liquid, the coolant near the inner wall of the lower shell 2 absorbs less heat, which is not conducive to the discharge of heat in the heat source and will waste part of the energy for driving the coolant to move. The upper shell 1 is provided with a roller 6 that can be moved to the lower shell 2 and is used to transfer the internal heat near the inner wall of the upper shell 1 to the coolant in the lower shell 2. The roller 6 is in a cylindrical structure. The two ends of the roller 6 in the length direction are provided with sliding ends 8 with an integral structure therewith. The sliding ends 8 are in a cylindrical structure. A support mechanism for the movement of the roller 6 is provided on the inner wall of the upper shell 1. The support mechanism includes a ring frame for the movement of the roller 6. There are multiple ring frames and they are arranged in an array structure in the upper shell 1. The ring frame is in a circular cage structure. The ring frame includes a left end plate 9 and a right end plate 10 welded and fixed to the inner wall of the upper shell 1. The left end plate 9 and the right end plate 10 are provided with an annular groove 11 that is recessed into itself and used in conjunction with the sliding end 8. The annular groove 11 is concentric with the left end plate 9. There are multiple rollers 6 and they are arranged in sequence along the ring frame. The roller 6 can make a circular motion in the ring frame by relying on the annular groove 11, and it does not rotate due to the action of friction. A pusher for driving the roller 6 to move is arranged on the inner wall of the upper shell 1, and the pusher includes a toggle wheel 19. A transverse shaft 20 extending to the outside of the right end plate 10 is threadedly fixed at the middle position of the left end plate 9, and a through hole through which the transverse shaft 20 passes is arranged on the right end plate 10. The transverse shaft 20 is rotatably connected to the toggle wheel 19 through a bearing, and the bearing and the transverse shaft 20 are interference fit. A toggle plate 21 is clamped on the toggle wheel 19, and there are multiple toggle plates 21, which are arranged one by one corresponding to the roller 6. A slot is arranged on one end of each toggle plate 21 away from the toggle wheel 19, and the sliding end 8 extends to the position of the toggle plate 21 through the right end plate 10 and is clamped with the slot. The right end plate 10 includes an outer ring and an inner circle, and the outer ring is welded and fixed to the upper shell 1. The through hole is located at the center of the inner circle, and the inner circle is threadedly fixed to the transverse shaft 20, forming a structure in which the roller 6 is driven to rotate along the ring frame after the rotation of the toggle plate 21. A thrust mechanism for driving the pusher to move is also provided on the inner wall of the upper shell 1. The thrust mechanism includes a network-shaped pipeline 23. The pipeline 23 belongs to the prior art. The pipeline 23 is welded to the inner wall of the upper shell 1. An impact tube 24 extending to the position of the paddle 21 is welded on the pipeline 23. There are multiple impact tubes 24 and they are arranged one by one corresponding to the paddle wheels 19, forming a structure in which the impact tube 24 sprays coolant to push the paddle 21 to move.The pipeline 23 is connected to a liquid inlet pipe 25, and the coolant delivery unit is provided with a branch pipe. One end of the liquid inlet pipe 25 away from the pipeline 23 extends to the outside of the upper shell 1 through the upper shell 1 and is connected to the branch pipe through a booster pump. The coolant delivery unit and the booster pump belong to the prior art, and the coolant delivery unit and the booster pump are both electrically connected to the control center.

[0018] In one embodiment, according to the attached Figure 5 and 6 As shown, a groove 12 is provided in the roller 6. There are two grooves 12 and they are symmetrically arranged about the center line of the roller 6. The length of the groove 12 is equal to the length of the roller 6. An extension plate 13 for being removable from the groove 12 is rotatably connected in the groove 12 through a torsion spring. The torsion spring belongs to the prior art. Under the normal condition of the torsion spring, the extension plate 13 is located outside the groove 12 and arranged along the horizontal plane. The material of the extension plate 13 and the roller 6 are the same as the material of the upper shell 1. The two ends of the extension plate 13 in the length direction are provided with a limit end 14 with an integral structure therewith. The limit end 14 is a cylindrical structure. The left end plate 9 and the right end plate 10 are provided with a slide rail 15 with an integral structure therewith and used to limit the position of the limit end 14. The slide rail 15 is provided with an open groove near the upper shell 1. When the roller 6 moves to the position of the open groove, the limit end 14 is released. The two extension plates 13 will move out of the groove 12 and cling to the inner wall of the upper shell 1 under the action of the torsion spring. A guide bar 29 is welded to one end of the slide rail 15, and the guide bar 29 limits the limit end 14, forming a structure in which the limit end 14 and the expansion board 13 move into the slide rail 15 under the limit of the guide bar 29 after passing through the open groove. The expansion board 13 is provided with a heat conducting plate 17 with an integral structure therewith, and the length of the heat conducting plate 17 is the same as that of the expansion board 13. There are multiple heat conducting plates 17 and they are evenly spaced along the length direction of the expansion board 13. The roller 6 is provided with a recessed groove 18 that is connected to the groove 12 and is used to place the heat conducting plate 17. When the expansion board 13 moves out of the groove 12, the heat conducting plate 17 moves with the expansion board 13, and the end of the heat conducting plate 17 away from the expansion board 13 is close to the roller 6 for better heat transfer.

[0019] In one embodiment, according to the attached Figure 1 and 7As shown, the inner wall of the lower shell 2 is rotatably connected with a heat-conducting rod 7 that can extend to the cavity 3 of the upper shell 1. A support 26 is welded on the lower shell 2. There are multiple supports 26 and they are distributed in an array. The support 26 is rotatably connected with the heat-conducting rod 7 through a long axis 27. A long axis 27 runs through the entire row of supports 26 located on the inner wall of the lower plate. One end of the long axis 27 extends to the outside of the cooling plate through the lower shell 2 and is key-connected with a sprocket 28. A motor is fixed to the lower shell 2 through a mounting seat bolt. The motor is electrically connected to the power supply through a control center. A sprocket 28 is arranged on the output shaft of the motor. Each sprocket 28 is connected by a chain. When the motor is powered on, the sprocket 28 and the long axis 27 are driven to rotate at a set angle, and the heat-conducting rod 7 moves from a state parallel to the inner wall of the lower shell 2 to a state perpendicular to the inner wall of the lower shell 2. The rotatable heat-conducting rod 7 on the lower shell 2 is arranged, and when the heat-conducting rod 7 is arranged perpendicular to the lower shell 2, it is used to transfer part of the heat of the coolant in the upper shell 1 close to the heat source to the coolant in the lower shell 2.

[0020] The implementation principle of the cooling system for a new energy vehicle of the embodiment of the present application is as follows: when the coolant in the cooling plate starts to flow, the coolant enters the pipeline through the liquid inlet pipe under the action of the booster pump and then is ejected through the impact pipe, thereby pushing the paddle plate to drive the paddle wheel to rotate along the horizontal axis; the end of the paddle plate away from the paddle wheel is clamped with the sliding end of the roller end, and the roller rotates along the ring frame under the rotation of the paddle plate, and the ring groove provides a track for the movement of the roller; the extension plate on the roller is received in the groove under the action of the slide rail, and when the roller moves to the open groove position, the extension plate moves out of the groove and adheres to the inner wall of the upper shell by relying on the action of the torsion spring, and the heat conducting plate moves with the extension plate and adheres to the roller to realize heat absorption, and after the roller rotates to the guide bar position, the extension plate is received in the groove, and when the roller moves close to the inner wall of the lower shell, heat exchange between the roller and the coolant is realized, thereby increasing the heat taken away by the coolant in the lower shell.

[0021] The present invention arranges a roller in the cooling plate and moves from the inner wall of the upper shell to the inner wall of the lower shell. The roller is made of the same material as the upper shell. The roller absorbs heat near the inner wall of the upper shell containing more heat and then moves to the lower shell, where it contacts the coolant to exchange heat, thereby increasing the absorption of heat by the coolant in the lower shell. The thrust mechanism is arranged to ensure the movement of the roller and achieve full utilization of the coolant.

[0022] The present invention has been described in detail above through specific implementation modes and embodiments, but these do not constitute limitations of the present invention. Without departing from the principles of the present invention, those skilled in the art may also make many variations and improvements, which should also be regarded as the protection scope of the present invention.

Claims

1. A new energy vehicle cooling system, comprising a coolant, a radiator, a control center, and a cooling plate located in a battery pack and the control center, characterized in that: The cooling plate comprises an upper shell (1) and a lower shell (2), wherein the upper shell (1) and the lower shell (2) are both provided with a cavity (3) of the same structure for injecting coolant, an end portion of the lower shell (2) is provided with a liquid injection port (4) for the coolant to enter, and an end portion of the upper shell (1) is provided with a liquid discharge port (5), a roller (6) movable to the lower shell (2) and used for transferring heat near the inner wall of the upper shell (1) to the coolant in the lower shell (2) is provided in the upper shell (1), a supporting mechanism for moving the roller (6) is provided on the inner wall of the upper shell (1), a pushing member for driving the roller (6) to move is provided on the inner wall of the upper shell (1), a thrust mechanism for driving the pushing member to move is also provided on the inner wall of the upper shell (1), and a heat conducting rod (7) extending to the cavity (3) of the upper shell (1) is provided on the inner wall of the lower shell (2), and the heat conducting rod (7) is rotatable.

2. The new energy vehicle cooling system according to claim 1, characterized in that: The support mechanism comprises a ring frame for moving the roller (6), the ring frame being in plurality and arranged in an array structure in the upper shell (1), the ring frame being in a circular cage-like structure, the roller (6) being in a cylindrical structure, the two ends of the roller (6) in the length direction being provided with sliding ends (8), the ring frame comprising a left end plate (9) and a right end plate (10) fixed to the inner wall of the upper shell (1), the left end plate (9) and the right end plate (10) being provided with an annular groove (11) used in conjunction with the sliding end (8), and the roller (6) being in plurality and arranged in sequence along the ring frame.

3. The new energy vehicle cooling system according to claim 2, characterized in that: The roller (6) is provided with a groove (12), two grooves (12) are provided and are symmetrically arranged about the center line of the roller (6), an extension plate (13) is rotatably connected to the groove (12) via a torsion spring and is used to be moved out of the groove (12), both ends of the extension plate (13) in the length direction are provided with limiting ends (14) integrally formed therewith, and slide rails (15) for limiting the position of the limiting ends (14) are provided on the left end plate (9) and the right end plate (10), The slide rail (15) is provided with an open groove near the upper shell (1). When the roller (6) moves to the position of the open groove, the limit end (14) is released, and the two extension plates (13) move out of the groove (12) under the action of the torsion spring and cling to the inner wall of the upper shell (1). A guide bar (29) is provided at one end of the slide rail (15), forming a structure in which the limit end (14) and the extension plate (13) pass through the open groove and move into the slide rail (15) under the limit of the guide bar (29).

4. The new energy vehicle cooling system according to claim 3, characterized in that: The expansion plate (13) is provided with a heat conducting plate (17), wherein a plurality of the heat conducting plates (17) are evenly spaced along the length direction of the expansion plate (13), and a recessed groove (18) is provided in the roller (6) and is connected to the groove (12) and is used to place the heat conducting plate (17). When the expansion plate (13) moves out of the groove (12), the heat conducting plate (17) moves with the expansion plate (13) and one end of the heat conducting plate (17) away from the expansion plate (13) is in close contact with the roller (6).

5. The new energy vehicle cooling system according to claim 2, characterized in that: The pusher comprises a toggle wheel (19). A horizontal shaft (20) extending to the outside of the right end plate (10) is arranged at the middle position of the left end plate (9). The horizontal shaft (20) is rotatably connected to the toggle wheel (19). A toggle plate (21) is arranged on the toggle wheel (19). The toggle plates (21) are arranged in a one-to-one correspondence with the rollers (6). Each of the toggle plates (21) is provided with a slot. The sliding end (8) extends to the position of the toggle plate (21) through the right end plate (10) and is engaged with the slot, forming a structure in which the rollers (6) are driven to rotate along the ring frame after the toggle plate (21) rotates.

6. The new energy vehicle cooling system according to claim 5, characterized in that: The thrust mechanism comprises a pipeline (23) having a mesh structure, an impact pipe (24) extending to the position of the dial plate (21) being provided on the pipeline (23), a plurality of impact pipes (24) being provided in a one-to-one correspondence with the dial wheels (19), the pipeline (23) being connected to a liquid inlet pipe (25), the coolant delivery unit being provided with a branch pipe, the liquid inlet pipe (25) extending through the upper shell (1) to the outside of the upper shell (1) and being connected to the branch pipe via a pressure pump.

7. The new energy vehicle cooling system according to claim 1, characterized in that: The lower shell (2) is provided with a support (26), and the support (26) is in multiple number and distributed in an array. The support (26) is rotatably connected to the heat-conducting rod (7) via a long shaft (27). One end of the long shaft (27) extends to the outside of the cooling plate through the lower shell (2) and is key-connected to a sprocket (28). The lower shell (2) is provided with a motor and a chain for driving each sprocket (28) to rotate.

Images