Battery heat dissipation structure for new energy bus

Abstract

The utility model discloses a battery heat dissipation structure for a new energy passenger car, which relates to the technical field of heat dissipation and comprises a passenger car battery pack, heat conducting plates are attached to the surfaces of the upper side and the lower side of the passenger car battery pack, circulating heat exchange pipes are embedded in the heat conducting plates, and fixing plates are symmetrically installed on the surfaces of the heat conducting plates. The front end of the fixing plate is fixedly connected with a limiting seat, and the air cooling heat dissipation mechanism is installed in the limiting seat and on the front side of the limiting seat and used for achieving cooling of cooling liquid. According to the battery heat dissipation structure for the new energy bus, an air cooling heat dissipation mechanism is arranged to be matched with a linkage driving mechanism to drive cooling liquid to rotate and flow in a circulating heat exchange pipe and a heat dissipation pipe, and heat generated by a bus battery pack can be uniformly exchanged in cooperation with distribution of the circulating heat exchange pipe in a heat conduction plate; and the battery heat dissipation structure can be matched with an air cooling heat dissipation mechanism to dissipate heat of the cooling liquid after heat exchange, so that the heat dissipation uniformity and effect of the battery heat dissipation structure for the new energy bus can be improved.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation technology, specifically a battery heat dissipation structure for new energy buses. Background Technology

[0002] With the global pursuit of environmental protection and sustainable energy, new energy buses, as a clean and efficient public transportation tool, have been widely promoted and applied. During the charging and discharging process, batteries inevitably generate a lot of heat. If this heat cannot be dissipated in a timely and effective manner, it will cause a series of serious problems. Therefore, it is necessary to effectively dissipate heat from the batteries of new energy buses through battery heat dissipation structures. However, existing battery heat dissipation structures still have certain defects in use.

[0003] For example, the heat dissipation component for the power battery of a pure electric city bus proposed in application number CN201922501181.7 includes a cover, an air blowing mechanism, a pressure groove, a compressed air bag, an iron ball, a one-way valve, an air guide groove, an air guide hole, an exhaust mechanism, a wire mesh, a compression spring, and a slide. In actual use, this battery heat dissipation component utilizes the vibration generated inside the passenger compartment during bus operation, which drives the iron ball inside the pressure groove to roll continuously inside the pressure groove and compresses the air bag to deform, thereby generating gas in the compressed air bag and transmitting it to the air guide hole through the air guide groove and the one-way valve to achieve ventilation and heat dissipation of the battery. However, this heat dissipation method can only dissipate the heat generated by the battery through airflow, but it cannot guarantee stable vibration drive and uniform heat dissipation, thus reducing the heat dissipation effect.

[0004] Therefore, we propose a battery heat dissipation structure for new energy buses to address the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a battery heat dissipation structure for new energy buses, in order to solve the problems mentioned in the background art that cannot guarantee the stability of heat dissipation drive and reduce the uniform heat dissipation effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a battery heat dissipation structure for new energy buses, including a bus battery pack, with heat-conducting plates attached to the upper and lower surfaces of the bus battery pack, a circulating heat exchange tube embedded inside the heat-conducting plate, and fixing plates symmetrically installed on the surface of the heat-conducting plate, with a limiting seat fixedly connected to the front end of the fixing plate.

[0007] The air-cooled heat dissipation mechanism is installed inside and on the front of the limiting seat to cool the coolant.

[0008] The linkage drive mechanism is connected between the circulating heat exchange tube and the air-cooled heat dissipation mechanism for pumping coolant.

[0009] The insertion and positioning mechanism connects to both ends of the bus battery pack and the heat conduction plate to improve the ease of disassembly and assembly.

[0010] Preferably, the air-cooled heat dissipation mechanism includes a rotating ring rotatably installed at equal intervals inside the limiting seat. A first fan blade group is fixedly installed on the inner ring of the rotating ring. A drive motor is fixedly connected to the front end of the first fan blade group. A support rod is installed at equal angles on the outer ring of the drive motor. The outer end of the support rod is fixedly connected to the limiting seat.

[0011] Preferably, the air-cooled heat dissipation mechanism further includes heat dissipation fins that are equally spaced and installed on the front side of the limiting seat, and heat dissipation pipes are installed through the interior of the heat dissipation fins.

[0012] The above-described structure allows the drive motor to rotate the first fan blade assembly, generating airflow and accelerating air movement. This provides air cooling for the heat dissipation fins and heat pipes. The equally spaced rotating rings and the first fan blade assembly create a relatively uniform airflow field within a certain range, improving heat dissipation efficiency. The heat dissipation fins increase the heat dissipation area, and with the heat pipes running through them, the coolant can dissipate heat into the surrounding air through the heat dissipation fins as it flows through the heat pipes, further enhancing the heat dissipation effect.

[0013] Preferably, the linkage drive mechanism includes a connecting seat fixedly installed at both ends of the top of the limiting seat. A driven gear ring is rotatably installed inside the connecting seat. The outer ring of the driven gear ring is meshed with a driving gear ring. The driving gear ring is fixedly connected to the rear ends of the rotating rings on the left and right sides respectively. A second fan blade group is fixedly connected to the inner ring of the driven gear ring.

[0014] Preferably, the front and rear ends of the connecting seat are connected to the circulating heat exchange pipe and the heat dissipation pipe, respectively, and the second fan blade groups on both sides are arranged in opposite directions.

[0015] The above-described structure allows the air-cooled heat dissipation mechanism to drive the rotating ring and the active gear ring to rotate during operation. The meshing of the active and driven gear rings then drives the driven gear ring to rotate, which in turn causes the second fan blade assembly fixed to the inner ring of the driven gear ring to rotate. Since the front and rear ends of the connecting seat are connected to the circulating heat exchange pipe and the heat dissipation pipe respectively, and the second fan blade assemblies on both sides are arranged in opposite directions, a pressure difference can be formed in the connecting seat when the second fan blade assembly rotates. This enables the coolant to circulate in the circulating heat exchange pipe and the heat dissipation pipe without the need for additional water pumps or other power devices, saving energy and resulting in a compact structure that reduces costs and the risk of failure.

[0016] Preferably, the insertion positioning mechanism includes insertion plates fixedly installed at both ends of the top heat-conducting plate, positioning plates fixedly installed on both sides of the bus battery pack, an adjusting screw threaded through the middle of the positioning plate, a knob fixedly connected to the bottom end of the adjusting screw, a snap-fit ​​plate rotatably connected to the top end of the adjusting screw, and limit rods symmetrically installed at the bottom of the snap-fit ​​plate.

[0017] Preferably, the snap-fit ​​plate and the plug-in plate are movably snap-fitted together, and the limiting rod and the positioning plate are slidably connected through each other.

[0018] The above-mentioned structure design allows the adjusting screw to rotate by rotating the knob, which in turn moves the snap-fit ​​plate up and down under the limiting action of the limiting rod. This controls the engagement and disengagement between the snap-fit ​​plate and the plug plate, which improves the ease of disassembly and assembly between the bus battery pack and the heat-conducting plate, and facilitates later maintenance and repair.

[0019] Compared with the prior art, the beneficial effects of this utility model are: the battery heat dissipation structure for new energy buses;

[0020] 1. The air-cooled heat dissipation mechanism, in conjunction with the linkage drive mechanism, enables the coolant to rotate and flow inside the circulating heat exchange pipes and the heat dissipation pipes. Combined with the distribution of the circulating heat exchange pipes inside the heat conduction plate, it can uniformly exchange the heat generated by the bus battery pack. When the coolant circulates inside the heat dissipation pipes, it can work with the air-cooled heat dissipation mechanism to dissipate the cooled coolant after heat exchange. This helps to improve the heat dissipation uniformity and effect of the battery heat dissipation structure used in new energy buses. At the same time, the linkage drive mechanism can make full use of the kinetic energy of the air-cooled heat dissipation mechanism to drive the coolant, improving the structural linkage and kinetic energy utilization effect.

[0021] 2. By controlling the engagement and disengagement of the insertion and positioning mechanism, the bus battery pack and the heat-conducting plate can be quickly connected and positioned during engagement, ensuring the stability of the combined connection. At the same time, the bus battery pack and the heat-conducting plate can be quickly separated during disengagement, which facilitates subsequent maintenance and repair work and improves the ease of maintenance and operation of the battery heat dissipation structure used in new energy buses. Attached Figure Description

[0022] Figure 1 This is a side view of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the air-cooled heat dissipation mechanism and the connection structure of the air-cooled heat dissipation mechanism of this utility model;

[0024] Figure 3 This is an exploded view of the air-cooled heat dissipation mechanism of this utility model;

[0025] Figure 4This is a side sectional view of the air-cooled heat dissipation mechanism of this utility model;

[0026] Figure 5 This is a side sectional view of the linkage drive mechanism of this utility model;

[0027] Figure 6 This is a side sectional view of the insertion and positioning mechanism of this utility model.

[0028] In the diagram: 1. Bus battery pack; 2. Heat-conducting plate; 3. Circulating heat exchange pipe; 4. Fixing plate; 5. Limiting seat; 6. Rotating ring; 7. First fan blade assembly; 8. Drive motor; 9. Support rod; 10. Heat dissipation fins; 11. Heat dissipation pipe; 12. Connecting seat; 13. Driven gear ring; 14. Driving gear ring; 15. Second fan blade assembly; 16. Insertion plate; 17. Positioning plate; 18. Adjusting screw; 19. Knob; 20. Snap-fit ​​plate; 21. Limiting rod. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-6 This utility model provides a technical solution: a battery heat dissipation structure for new energy buses, including a bus battery pack 1, heat-conducting plates 2 attached to the upper and lower surfaces of the bus battery pack 1, a circulating heat exchange pipe 3 embedded inside the heat-conducting plates 2, a fixing plate 4 symmetrically installed on the surface of the heat-conducting plates 2, a limiting seat 5 fixedly connected to the front end of the fixing plate 4, and a wind-cooling heat dissipation mechanism installed inside and on the front side of the limiting seat 5 to achieve cooling of the coolant. The wind-cooling heat dissipation mechanism includes a rotating ring 6 rotatably installed at equal intervals inside the limiting seat 5, a first fan blade group 7 fixedly installed on the inner ring of the rotating ring 6, a drive motor 8 fixedly connected to the front end of the first fan blade group 7, a support rod 9 installed at equal angles on the outer ring of the drive motor 8, and the outer end of the support rod 9 fixedly connected to the limiting seat 5. The wind-cooling heat dissipation mechanism also includes heat dissipation fins 10 installed at equal intervals on the front side of the limiting seat 5, and a heat dissipation pipe 11 installed through the interior of the heat dissipation fins 10.

[0031] In the above-described structure, when the new energy bus battery pack 1 generates heat during operation, the heat is first transferred to the heat-conducting plates 2 attached to its upper and lower sides via thermal conduction. The heat-conducting plates 2 have excellent thermal conductivity, enabling them to quickly absorb and evenly distribute the heat from the bus battery pack 1. Subsequently, the heat is transferred to the coolant within the circulating heat exchange pipes 3 embedded inside the heat-conducting plates 2. At this point, the linkage drive mechanism begins to function, causing the coolant to circulate within the circulating heat exchange pipes 3 and the heat dissipation pipes 11.

[0032] During the coolant circulation process, the air-cooled heat dissipation mechanism works synchronously. The first fan blade group 7 is driven by the drive motor 8 to rotate, generating airflow and accelerating the airflow. The airflow passes over the heat dissipation fins 10 installed on the front side of the limit seat 5 and the heat dissipation pipe 11 that runs through them. The heat dissipation fins 10 increase the heat dissipation area. When the coolant flows in the heat dissipation pipe 11, the heat it carries is dissipated into the surrounding air through the heat dissipation fins 10, thereby cooling the coolant. The cooled coolant flows back to the circulating heat exchange pipe 3 to continue absorbing the heat transferred from the battery pack to the heat conduction plate 2. This cycle repeats continuously, carrying away the heat generated by the battery pack and keeping the battery pack within a suitable operating temperature range.

[0033] The linkage drive mechanism is connected between the circulating heat exchange tube 3 and the air-cooled heat dissipation mechanism for pumping coolant. The linkage drive mechanism includes a connecting seat 12 fixedly installed at both ends of the top of the limiting seat 5. A driven gear ring 13 is rotatably installed inside the connecting seat 12. The outer ring of the driven gear ring 13 is meshed with a driving gear ring 14. The driving gear ring 14 is fixedly connected to the rear ends of the left and right rotating rings 6 respectively. The inner ring of the driven gear ring 13 is fixedly connected to a second fan blade group 15. The front and rear ends of the connecting seat 12 are connected to the circulating heat exchange tube 3 and the heat dissipation tube 11 respectively. The second fan blade groups 15 on both sides are arranged in opposite directions.

[0034] The above structure is designed so that when the drive motor 8 starts, it drives the first fan blade group 7 to rotate. Then, the first fan blade group 7 drives the rotating ring 6 to rotate inside the limiting seat 5. Since the driving gear ring 14 is fixedly connected to the rear end of the rotating ring 6, and the driven gear ring 13 meshes with the driving gear ring 14, the rotation of the rotating ring 6 will drive the driving gear ring 14 to rotate, which in turn causes the driven gear ring 13 to rotate. The second fan blade group 15, which is fixed to the inner ring of the driven gear ring 13, also rotates. Since the front and rear ends of the connecting seat 12 are connected to the circulating heat exchange pipe 3 and the heat dissipation pipe 11 respectively, and the second fan blade groups 15 on both sides are arranged in opposite directions, the rotation of the second fan blade group 15 creates a pressure difference in the connecting seat 12, which causes the coolant to circulate in the circulating heat exchange pipe 3 and the heat dissipation pipe 11, thereby achieving continuous heat absorption and heat dissipation in a circulating manner.

[0035] The insertion positioning mechanism is connected to both ends of the bus battery pack 1 and the heat conduction plate 2 to improve the convenience of disassembly and assembly operations. The insertion positioning mechanism includes insertion plates 16 fixedly installed at both ends of the top heat conduction plate 2, positioning plates 17 fixedly installed on both sides of the bus battery pack 1, an adjusting screw 18 threaded through the middle of the positioning plate 17, a knob 19 fixedly connected to the bottom end of the adjusting screw 18, a snap-fit ​​plate 20 rotatably connected to the top end of the adjusting screw 18, the snap-fit ​​plate 20 and the insertion plate 16 are movably snap-fit ​​connected, and limit rods 21 are symmetrically installed at the bottom of the snap-fit ​​plate 20, the limit rods 21 and the positioning plate 17 are slidably connected through the plate.

[0036] The above-mentioned structural design allows the plug-in positioning mechanism to play a role mainly in the installation and disassembly process. During installation, the plug-in plate 16 and the bus battery pack 1 are inserted between the upper and lower heat-conducting plates 2, and the plug-in plates 16 are distributed accordingly. Then, the knob 19 is rotated to drive the adjusting screw 18 to rotate. The adjusting screw 18 will rise and fall due to the threaded connection with the positioning plate 17, thereby driving the snap-fit ​​plate 20 to rise under the limiting action of the limiting rod 21, and snapping the plug-in plate 16 into place, thus achieving a stable connection between the heat-conducting plate 2 and the bus battery pack 1.

[0037] During disassembly, rotate the knob 19 and the adjusting screw 18 in the opposite direction to lower the snap-fit ​​plate 20, loosen the snap-fit ​​on the plug-in plate 16, and the heat-conducting plate 2 can be easily separated from the bus battery pack 1, which facilitates the maintenance and repair of the heat dissipation structure or the battery pack.

[0038] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A battery heat dissipation structure for new energy buses, comprising a bus battery pack (1), characterized in that: The upper and lower surfaces of the bus battery pack (1) are fitted with heat-conducting plates (2), and circulating heat exchange tubes (3) are embedded inside the heat-conducting plates (2). Fixing plates (4) are symmetrically installed on the surface of the heat-conducting plates (2), and a limiting seat (5) is fixedly connected to the front end of the fixing plate (4). The air-cooled heat dissipation mechanism is installed inside and on the front side of the limiting seat (5) to achieve cooling of the coolant; The linkage drive mechanism is connected between the circulating heat exchange tube (3) and the air-cooled heat dissipation mechanism for pumping coolant. The insertion positioning mechanism is connected to both ends of the bus battery pack (1) and the heat conduction plate (2) to improve the convenience of disassembly and assembly.

2. The battery heat dissipation structure for new energy buses according to claim 1, characterized in that: The air-cooled heat dissipation mechanism includes a rotating ring (6) that is rotatably installed inside the limiting seat (5) at equal intervals. The inner ring of the rotating ring (6) is fixedly installed with a first fan blade group (7). The front end of the first fan blade group (7) is fixedly connected with a drive motor (8). The outer ring of the drive motor (8) is installed with a support rod (9) at equal angles. The outer end of the support rod (9) is fixedly connected to the limiting seat (5).

3. The battery heat dissipation structure for new energy buses according to claim 2, characterized in that: The air-cooled heat dissipation mechanism also includes heat dissipation fins (10) that are equally spaced on the front side of the limiting seat (5), and heat dissipation pipes (11) are installed through the interior of the heat dissipation fins (10).

4. The battery heat dissipation structure for new energy buses according to claim 2, characterized in that: The linkage drive mechanism includes a connecting seat (12) fixedly installed at both ends of the top of the limiting seat (5). A driven gear ring (13) is rotatably installed inside the connecting seat (12). The outer ring of the driven gear ring (13) is meshed with a driving gear ring (14). The driving gear ring (14) is fixedly connected to the rear end of the rotating ring (6) on the left and right sides respectively. The inner ring of the driven gear ring (13) is fixedly connected to a second fan blade group (15).

5. A battery heat dissipation structure for new energy buses according to claim 4, characterized in that: The front and rear ends of the connecting seat (12) are connected to the circulating heat exchange pipe (3) and the heat dissipation pipe (11) respectively, and the second fan blade group (15) on both sides is arranged in opposite directions.

6. The battery heat dissipation structure for new energy buses according to claim 1, characterized in that: The plug-in positioning mechanism includes plug-in plates (16) fixedly installed at both ends of the top heat-conducting plate (2), positioning plates (17) fixedly installed on both sides of the bus battery pack (1), an adjusting screw (18) threaded through the middle of the positioning plate (17), a knob (19) fixedly connected to the bottom end of the adjusting screw (18), a snap-fit ​​plate (20) rotatably connected to the top end of the adjusting screw (18), and limit rods (21) symmetrically installed at the bottom of the snap-fit ​​plate (20).

7. A battery heat dissipation structure for a new energy bus according to claim 6, characterized in that: The snap-fit ​​plate (20) and the plug-in plate (16) are movably snap-fitted together, and the limiting rod (21) and the positioning plate (17) are slidably connected through each other.

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