A lithium battery pack mounting layout structure for buses

Abstract

This invention relates to the field of vehicle power unit installation technology, and discloses a lithium battery pack placement layout structure for buses, including a base plate, a battery compartment fixedly disposed on the top of the base plate, the lithium battery pack consisting of a battery holder and battery cells, a gap between the battery holder and the battery cells, and openings formed on three sides around the battery cells, a water-cooled heat dissipation plate slidably disposed on one side of the battery compartment, and a pushing component disposed at the bottom of the battery compartment, the pushing component simultaneously generating horizontal and vertical pushing actions, the horizontal pushing action driving the lithium battery pack into the battery compartment, and the vertical pushing action driving the water-cooled heat dissipation plate to fit against the battery cells. This invention utilizes the action of the pushing component to achieve the addition of the water-cooled heat dissipation plate while the battery holder and battery cells are pressed into the battery compartment, and the cooling effect is optimized, the cooling coverage of the battery cells is more complete, and different heat-generating surfaces of the battery cells can be effectively cooled during operation.

Description

Technical Field

[0001] This invention relates to the field of vehicle power unit installation, and more specifically, to a lithium battery pack mounting layout structure for buses. Background Technology

[0002] With the global energy crisis and environmental issues becoming increasingly prominent, and with the vigorous promotion of environmental protection policies, buses have basically adopted new energy power. Among them, lithium battery packs are widely used in buses due to their advantages such as high energy density, long cycle life, support for high current charging, and compatibility with battery swapping modes.

[0003] To meet the requirements of rapid battery swapping, the bus battery pack needs to be installed in a movable manner relative to the battery compartment. The existing battery pack placement layout has the following drawbacks in actual use:

[0004] The battery pack needs to be manually pushed and dragged to move in and out of the battery compartment, which can easily lead to improper installation and placement. Furthermore, the friction generated when moving the battery pack can easily damage the battery compartment, making it difficult to install or replace the battery pack later.

[0005] The movable installation method is difficult to balance with the heat dissipation requirements of the battery pack. To elaborate, while allowing the battery pack to slide relative to the battery compartment, it is inconvenient to arrange cooling components around the battery pack. The only option is to set up heat dissipation components at the bottom of the battery compartment. As a result, the battery pack can only receive heat dissipation from one side, which is poor. Summary of the Invention

[0006] This invention provides a lithium battery pack placement layout structure for buses, solving the technical problems of inconvenient battery pack replacement and difficulty in balancing the heat dissipation requirements of the battery pack in related technologies.

[0007] This invention provides a lithium battery pack mounting layout structure for buses, including a base plate, a battery compartment fixedly mounted on the base plate, and the lithium battery pack consisting of a battery holder and battery cells, with a gap between the battery holder and the battery cells and openings formed on three sides around the battery cells.

[0008] A water-cooled heat dissipation plate is slidably disposed on one side of the battery compartment, and the water-cooled heat dissipation plate is in the shape of an inverted U.

[0009] The bottom of the battery compartment is equipped with a pushing component, which simultaneously generates horizontal and vertical pushing forces. The horizontal pushing force drives the lithium battery pack into the battery compartment, while the vertical pushing force drives the water-cooled heat sink to adhere to the battery cell.

[0010] As a further embodiment of the present invention: the pushing component includes a first active roller, a second active roller, a motor, a first synchronous pulley, a second synchronous pulley, a belt, and auxiliary rollers. The first active roller and the second active roller are rotatably mounted at both ends of the bottom of the battery compartment, respectively. A motor is fixedly mounted on the base plate, and the output end of the motor is fixedly connected to the first active roller. A first synchronous pulley is fixedly sleeved on the first active roller, and a second synchronous pulley is fixedly sleeved on the second active roller. A belt is provided between the first synchronous pulley and the second synchronous pulley. Several auxiliary rollers are also rotatably mounted at the bottom of the battery compartment. The tops of the first active roller, the second active roller, and the auxiliary rollers are flush.

[0011] As a further embodiment of the present invention: the pushing component further includes a slide rail, a rack, a gear and a connecting frame. The slide rail is symmetrically fixedly arranged on the base plate, and the rack is slidably installed in the slide rail. The gear is fixedly sleeved on the second active roller, and the gear meshes with the rack. The top end of the rack is fixedly provided with a connecting frame, and the connecting frame is fixedly connected to the water-cooled heat sink.

[0012] As a further aspect of the present invention: a hinge is provided on the battery compartment, a cover plate is installed on one side of the hinge, a first locking block is fixedly installed on the edge of the cover plate, a second locking block is fixedly installed on the edge of the battery compartment, and vertical through holes are provided on both the first locking block and the second locking block, and a locking plug is inserted between the vertical through holes.

[0013] As a further embodiment of the present invention: a locking cylinder is fixedly installed in the battery compartment, and a top rod is fixedly installed on one side of the battery holder, the top rod being inserted into the locking cylinder.

[0014] As a further aspect of the present invention: corner blocks are symmetrically fixedly arranged on the battery holder, and bolts are used to fit between the corner blocks and the battery compartment.

[0015] As a further embodiment of the present invention: symmetrical hanging rings are fixedly installed on the top of the battery holder.

[0016] The beneficial effects of this invention are as follows:

[0017] In the implementation of this invention, the rotation of the first active roller drives the battery holder and the battery cell into the battery compartment, and the rotation of the second active roller ensures that the battery holder and the battery cell are pressed into place and fit tightly. The auxiliary roller provides auxiliary support and rolling action during the process to ensure that the battery holder and the battery cell are fully pressed in. Compared with the traditional manual pushing action, the use of the pushing component can effectively eliminate the adverse effects of improper placement and friction-induced wear, and can control the entry and exit of the battery pack, which is simple and efficient.

[0018] This invention utilizes the pushing component to simultaneously insert the battery holder and battery cell into the battery compartment and add a water-cooled heat dissipation plate, thereby optimizing the cooling effect and providing more complete cooling coverage for the battery cell. This ensures that different heat-generating surfaces of the battery cell can be effectively cooled during operation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall layout structure for the placement of a lithium battery pack in a bus, as proposed in this invention.

[0020] Figure 2 This is a schematic diagram of the opening and closing structure between the battery compartment and the cover plate in a lithium battery pack placement layout structure for buses proposed in this invention.

[0021] Figure 3 This is a schematic diagram of the internal front side of a lithium battery pack mounting layout structure for buses proposed in this invention.

[0022] Figure 4 This is a schematic diagram of the internal rear side of a lithium battery pack mounting layout structure for buses proposed in this invention.

[0023] Figure 5 This is an exploded view of the lithium battery pack placement layout structure for buses proposed in this invention.

[0024] Figure 6 This is a schematic diagram of the expanded structure of the push component proposed in this invention;

[0025] Figure 7 This is a schematic diagram of the battery holder and battery cell combination structure proposed in this invention.

[0026] In the diagram: 1. Battery compartment; 10. Hinge; 11. Cover plate; 12. First locking block; 13. Second locking block; 14. Locking insert; 15. Locking cylinder; 2. Base plate; 3. Battery holder; 31. Corner block; 32. Bolt; 33. Top rod; 34. Lifting ring; 4. Battery cell; 5. Water-cooled heat sink; 6. Pushing assembly; 61. First active roller; 62. Second active roller; 63. Motor; 64. First synchronous pulley; 65. Second synchronous pulley; 66. Belt; 67. Auxiliary roller; 601. Slide rail; 602. Rack; 603. Gear; 604. Connecting frame. Detailed Implementation

[0027] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0028] This invention discloses a lithium battery pack mounting layout structure for buses, such as... Figure 1 - Figure 7 As shown, it includes a base plate 2, a battery compartment 1 is fixedly installed on the top of the base plate 2, and the lithium battery pack is composed of a battery holder 3 and a battery cell 4. There is a gap between the battery holder 3 and the battery cell 4, and an opening is formed on three sides around the battery cell 4.

[0029] A water-cooled heat dissipation plate 5 is slidably disposed on one side of the battery compartment 1, and the water-cooled heat dissipation plate 5 is in the shape of an inverted U.

[0030] The bottom of the battery compartment 1 is provided with a pushing component 6, which simultaneously generates a horizontal pushing action and a vertical pushing action. The horizontal pushing action drives the lithium battery pack into the battery compartment 1, and the vertical pushing action drives the water-cooled heat dissipation plate 5 to adhere to the battery cell 4.

[0031] refer to Figure 4 As shown, the lithium battery pack placement layout structure for buses provided by the present invention is characterized by the cooperation of the three-sided openings around the battery cell 4 and the U-shaped water-cooling heat dissipation plate 5. On the one hand, it can maximize the heat dissipation of the battery cell 4 (compared to the traditional single-sided heat dissipation), and on the other hand, it ensures that the downward pressing action of the water-cooling heat dissipation plate 5 and the pushing action of the battery pack into the compartment do not interfere with each other.

[0032] By utilizing the push component 6, the water-cooled heat dissipation plate 5 is added at the same time as the battery holder 3 and the battery cell 4 are pressed into the battery compartment 1, and the cooling effect is optimized, the cooling coverage of the battery cell 4 is more complete, and different heat-generating surfaces of the battery cell 4 can be effectively cooled when working.

[0033] The horizontal push function generated by push component 6 specifically includes:

[0034] The pushing component 6 includes a first active roller 61, a second active roller 62, a motor 63, a first synchronous pulley 64, a second synchronous pulley 65, a belt 66, and auxiliary rollers 67. The first active roller 61 and the second active roller 62 are rotatably mounted at both ends of the bottom of the battery compartment 1, respectively. The motor 63 is fixedly mounted on the base plate 2, and the output end of the motor 63 is fixedly connected to the first active roller 61. The first synchronous pulley 64 is fixedly sleeved on the first active roller 61, and the second synchronous pulley 65 is fixedly sleeved on the second active roller 62. A belt 66 is provided between the first synchronous pulley 64 and the second synchronous pulley 65. Several auxiliary rollers 67 are also rotatably mounted at the bottom of the battery compartment 1. The tops of the first active roller 61, the second active roller 62, and the auxiliary rollers 67 are flush.

[0035] refer to Figure 5 As shown, taking the process of filling the battery holder 3 and battery cell 4 into the battery compartment 1 as an example, firstly, the battery holder 3 and battery cell 4 are hoisted to the opening of the battery compartment 1, and the bottom of the battery holder 3 and battery cell 4 are pressed on the first active roller 61. At this time, the motor 63 is turned on, driving the first active roller 61 to rotate. Using the synchronous belt structure formed by the first synchronous pulley 64, the second synchronous pulley 65 and the belt 66, the second active roller 62 is driven to rotate. The rotation of the first active roller 61 drives the battery holder 3 and battery cell 4 to push into the battery compartment 1. The rotation of the second active roller 62 makes the battery holder 3 and battery cell 4 pressed into place and close together. The auxiliary roller 67 provides auxiliary support and rolling effect during the process to ensure that the battery holder 3 and battery cell 4 are pressed in completely.

[0036] Compared to traditional manual pushing, the pushing component 6 can effectively eliminate the adverse effects of improper placement and friction-induced wear, and can control the entry and exit of the battery pack (simply by changing the output direction of the motor 63), making it simple and efficient.

[0037] The vertical push function generated by push component 6 is specifically as follows:

[0038] refer to Figure 6 The pushing component 6 further includes a slide rail 601, a rack 602, a gear 603, and a connecting frame 604. The slide rail 601 is symmetrically fixed on the base plate. The rack 602 is slidably installed in the slide rail 601. The gear 603 is fixedly sleeved on the second drive roller 62. The gear 603 meshes with the rack 602. The top end of the rack 602 is fixedly provided with a connecting frame 604. The connecting frame 604 is fixedly connected to the water-cooled heat sink 5.

[0039] When the second active roller 62 rotates, it drives the gear 603 to rotate synchronously. The gear 603 meshes with the rack 602 to move it downward, thereby causing the water-cooled heat dissipation plate 5, which is fixed to the connecting frame 604, to move downward and press into the gap between the battery holder 3 and the battery cell 4, so that its water-cooling action surface is in contact with the left, right and top surfaces of the battery cell 4 respectively, and the battery cell 4 can obtain heat dissipation from the three action surfaces.

[0040] The battery compartment 1 is provided with a hinge 10, and a cover plate 11 is installed on one side of the hinge 10. A first locking block 12 is fixedly installed on the edge of the cover plate 11, and a second locking block 13 is fixedly installed on the edge of the battery compartment 1. Both the first locking block 12 and the second locking block 13 are provided with vertical through holes, and a locking plug 14 is inserted between the vertical through holes.

[0041] After the battery holder 3 and the battery cell 4 are fully pressed into the battery compartment 1, the cover plate 11 is closed by rotating the hinge 10. Then, the locking plug 14 is inserted into the vertical through hole, so that the first locking block 12 and the second locking block 13 are connected as one unit, thus completing the closing and locking of the battery compartment 1.

[0042] A locking cylinder 15 is fixedly installed in the battery compartment 1, and a top rod 33 is fixedly installed on one side of the battery holder 3. The top rod 33 is inserted into the locking cylinder 15.

[0043] The locking cylinder 15 and the top rod 33 are inserted after the battery cell 4 and battery holder 3 are pressed into place, and a horizontal limit is generated, which can suppress the influence of vertical vibration on the installation stability of the battery cell 4 and battery holder 3.

[0044] Corner blocks 31 are symmetrically fixed on the battery holder 3, and bolts 32 are used to connect the corner blocks 31 to the battery compartment 1.

[0045] After the battery cell 4 and battery holder 3 are pressed into place, tighten the bolt 32 to establish a vertical limit, which can suppress the influence of horizontal vibration on the installation stability of the battery cell 4 and battery holder 3.

[0046] The battery holder 3 is symmetrically fixedly mounted with lifting rings 34 on its top.

[0047] The battery cell 4 and battery holder 3 are lifted to a certain height using the lifting ring 34, making it easy to disassemble and assemble.

[0048] Working principle

[0049] Taking the process of filling the battery holder 3 and battery cell 4 into the battery compartment 1 as an example, firstly, the battery holder 3 and battery cell 4 are hoisted to the opening of the battery compartment 1, and the bottom of the battery holder 3 and battery cell 4 are pressed onto the first active roller 61. At this time, the motor 63 is turned on, driving the first active roller 61 to rotate. Using the synchronous belt structure formed by the first synchronous pulley 64, the second synchronous pulley 65 and the belt 66, the second active roller 62 is driven to rotate. The rotation of the first active roller 61 drives the battery holder 3 and battery cell 4 to push into the battery compartment 1. The rotation of the second active roller 62 ensures that the battery holder 3 and battery cell 4 are pressed into place and tightly attached. The auxiliary roller 67 provides auxiliary support and rolling action during the process to ensure that the battery holder 3 and battery cell 4 are fully pressed in. When rotating, it drives gear 603 to rotate synchronously. Gear 603 meshes with rack 602 to move it downward, thereby causing the water-cooled heat sink 5 fixed to the connecting frame 604 to move down and press into the gap between battery holder 3 and battery cell 4, so that its water-cooling surface is in contact with the left, right and top surfaces of battery cell 4 respectively. Locking cylinder 15 and top rod 33 are inserted after battery cell 4 and battery holder 3 are pressed into place, creating a limit in the horizontal direction. After battery cell 4 and battery holder 3 are pressed into place, bolt 32 is tightened to establish a limit in the vertical direction. Finally, hinge 10 is used to rotate and close cover plate 11, and then lock plug 14 is inserted into vertical through hole, so that first locking block 12 and second locking block 13 are connected as one, completing the closing and locking of battery compartment 1.

[0050] The embodiments of the present invention have been described above. However, the embodiments are not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make more equivalent embodiments under the guidance of the present embodiments, and all of them are within the protection scope of the present embodiments.

Claims

1. A lithium battery pack accommodation layout structure for a bus, characterized by, Including the bottom plate (2), the battery compartment (1) is fixedly arranged above the bottom plate (2), the lithium battery pack is composed of the battery seat (3) and the battery cell (4), the gap is arranged between the battery seat (3) and the battery cell (4), and the opening is formed around the battery cell three sides; The water-cooling heat sink (5) is slidably arranged on one side of the battery compartment (1), and the water-cooling heat sink (5) is inverted U-shaped; The push assembly (6) is arranged at the bottom of the battery compartment (1), the push assembly (6) simultaneously generates horizontal pushing action and vertical pushing action, the horizontal pushing action drives the lithium battery pack into the battery compartment (1), the vertical pushing action drives the water-cooling heat sink (5) to move downward, and the water-cooling heat sink (5) is pressed into the gap between the battery seat (3) and the battery cell (4), so that the water-cooling surface of the water-cooling heat sink (5) is respectively attached to the left, right and top surfaces of the battery cell (4); The push assembly (6) includes a first driving roller (61), a second driving roller (62), a motor (63), a first synchronous wheel (64), a second synchronous wheel (65), a belt (66) and an auxiliary roller (67), both ends of the bottom of the battery compartment (1) are rotatably provided with the first driving roller (61) and the second driving roller (62), the bottom plate (2) is fixedly provided with the motor (63), the output end of the motor (63) is fixedly connected with the first driving roller (61), the first driving roller (61) is fixedly sleeved with the first synchronous wheel (64), the second driving roller (62) is fixedly sleeved with the second synchronous wheel (65), the first synchronous wheel (64) and the second synchronous wheel (65) are cooperatively provided with the belt (66), and the bottom of the battery compartment (1) is further rotatably provided with a plurality of auxiliary rollers (67), and the top of the first driving roller (61), the second driving roller (62) and the auxiliary roller (67) is flush. The push assembly (6) further includes a sliding rail (601), a rack (602), a gear (603) and a connecting frame (604), the bottom plate (2) is fixedly provided with the sliding rail (601) symmetrically, the rack (602) is slidably installed in the sliding rail (601), the second driving roller (62) is fixedly sleeved with the gear (603), the gear (603) is engaged with the rack (602), and the top end of the rack (602) is fixedly provided with the connecting frame (604), and the connecting frame (604) is fixedly connected with the water-cooling heat sink (5).

2. The lithium battery pack arrangement for a bus according to claim 1, wherein, The battery compartment (1) is provided with a hinge (10), one side of the hinge (10) is provided with a cover plate (11), a first locking block (12) is fixedly installed at the edge of the cover plate (11), a second locking block (13) is fixedly installed at the edge of the battery compartment (1), vertical through holes are formed in the first locking block (12) and the second locking block (13), and a lock plug (14) is inserted and arranged between the vertical through holes.

3. The lithium battery pack arrangement for a bus according to claim 1, wherein, The battery compartment (1) is fixedly installed with a locking cylinder (15), and the battery seat is fixedly installed with a top rod (33), the top rod (33) is inserted and matched with the locking cylinder (15).

4. The lithium battery pack arrangement for a bus of claim 1, wherein, The battery holder (3) is symmetrically provided with an angle block (31), and the angle block (31) is matched with the battery compartment (1) through a bolt (32).

5. The lithium battery pack arrangement for a bus of claim 1, wherein, The battery holder (3) is symmetrically provided with an angle block (31), and the angle block (31) is matched with the battery compartment (1) through a bolt (32).

Images