CN211223381U - Power battery is dismouting structure and electric automobile for package - Google Patents

Abstract

A disassembly and assembly structure for a power battery pack and an electric vehicle belong to the technical field of new energy vehicles. The disassembly and assembly structure for a power battery pack includes a support box and a battery box arranged inside, and an opening is arranged on the support box. , the two ends of the supporting box are rotatably connected to the battery box, the battery box is provided with a box door, and the battery box is provided with a rolling assembly that supports the battery pack and pushes the battery pack from the box door and the opening. Separated from the push assembly of the electric vehicle, the beneficial effect of the utility model is that the overall structure of the disassembly and assembly structure of the power battery pack is simple, and the corresponding installation and disassembly positions can be selected according to actual needs, so that the disassembly and installation of the battery pack is more flexible and reduces the energy consumption. The labor intensity of the staff is reduced, the efficiency of disassembly and installation is high, and the cost of disassembly and assembly is saved, and the shock absorption effect and heat dissipation effect of the battery pack are good, which prolongs the service life of the battery pack.

Description

Disassembly and assembly structure for power battery pack and electric vehicle

technical field

The utility model relates to the technical field of new energy vehicles, in particular to a disassembly and assembly structure for a power battery pack and an electric vehicle.

Background technique

With the continuous improvement of people's living standards, the number of cars is also increasing year by year, followed by the shortage of fossil energy such as oil and natural gas. Therefore, new energy vehicles will become the focus of future market competition for major automobile manufacturers. In the field of new energy vehicle technology, electric vehicles are new energy vehicle models vigorously promoted by the government. In new energy electric vehicles, the power source is the battery pack.

The current new energy vehicles have the following shortcomings: First, the weight of a single box of power batteries for new energy vehicles is about 200kg, which leads to the inconvenience of assembly due to the large frictional resistance between the power battery and the battery box when installing the power battery. It takes a long time to replace the power battery each time, which reduces the installation efficiency and leads to high labor intensity for operators. Second, during the operation of the electric vehicle, the battery box will resonate with the vehicle body, which will cause the battery box to resonate. The collision between the internal battery module and the battery box leads to a safety accident. Third, the battery pack in an electric vehicle will generate a lot of heat after long-term use. The long-term heat cannot be diffused, which will damage the battery module and affect the battery pack. service life.

Utility model content

In order to solve the above technical problems, the utility model provides a disassembly and assembly structure for a power battery pack, which mainly solves the problem of inconvenient disassembly and assembly of the existing battery pack, and further solves the problem that the shock absorption effect and heat dissipation effect of the battery pack are poor, which affects the The purpose of the service life of the battery pack is that by setting up a disassembly and assembly structure in the electric vehicle, the corresponding installation and disassembly positions can be selected according to actual needs, so that the disassembly and installation of the battery pack is more flexible, and the staff's workload is reduced. The labor intensity is high, the disassembly and installation efficiency is high, and the disassembly and assembly cost is saved, and the battery pack in the structure has good shock absorption and heat dissipation effects, and the battery pack has a long service life.

In order to achieve the above purpose, the technical solution adopted by the present invention to solve the technical problem is as follows: the disassembly and assembly structure for the power battery pack includes a support box and a battery box arranged inside, and an opening is arranged on the support box. , the two ends of the supporting box are rotatably connected to the battery box, the battery box is provided with a box door, and the battery box is provided with a rolling assembly that supports the battery pack and pushes the battery pack from the box door and the opening. Breakaway from the propulsion components of an electric vehicle.

Further, the two ends of the battery box are respectively connected with a connecting shaft I and a connecting shaft II, one end of the connecting shaft I away from the battery box is rotatably connected with one end of the support box, and the connecting shaft II is away from the battery box. One end is rotatably connected to the other end of the support box, a drive motor is provided outside the support box, and the output shaft of the drive motor is connected to the end of the connecting shaft II extending out of the support box through a coupling .

Further, bearings are respectively fixed on the inner walls of both ends of the support box, and the connection shaft I and the connection shaft II are respectively connected to the support box in rotation through the bearings.

Further, a fixing bracket is installed outside the support box, and the driving motor is arranged on the fixing bracket.

Further, the rolling assembly includes a support block, a fixed lug and a roller, the support block is fixed on the bottom of the battery box, and two fixed lugs are provided and respectively fixed on both sides of the upper end of the support block, The rollers are rotatably connected between the two fixed lugs through a rotating shaft; a plurality of the rolling assemblies are arranged and are evenly distributed at the bottom of the battery box.

Further, the pushing assembly includes a cylinder I, and a shock-absorbing block is connected to the protruding end of the piston rod of the cylinder I.

Further, the top inside the battery box is also provided with a plurality of shock absorbing components in contact with the battery pack. The shock absorbing components include a fixed plate I, a fixed plate II, a guide post and a spring, and the fixed plate I is fixed on the On the inner wall of the battery box, the fixing plate I is connected with the fixing plate II through the spring, the spring is sleeved with the guide column, and one end of the guide column is fixedly connected with the fixing plate II, so The other end of the guide post goes out of the battery box through the fixing plate I.

Further, a positioning bracket is connected to one side of the battery box through a bearing, a cylinder II is fixedly installed on the positioning bracket, and the piston extension end of the cylinder II is rotatably connected to one side of the box door; the The battery box is provided with an electronic lock connected to the box door.

Further, a cooling fan is provided on the inner wall of the supporting box, and the openings are provided on both sides and the bottom of the supporting box.

An electric vehicle includes the disassembly and assembly structure for a power battery pack, and the support box is fixed on the chassis of the vehicle body.

The beneficial effects of the present utility model are:

1. The disassembly structure involved in the present utility model includes a supporting box and a battery box that are connected in rotation. An opening is arranged on the supporting box and a box door is arranged on the battery box. By rotating the battery box, the box door is aligned with the opening, and then the The push assembly in the battery box disengages the battery pack from the supporting box under the action of the rolling assembly, thus completing the disassembly of the battery pack. Similarly, turn the battery box to make the box door align with the opening, and then place the battery pack on the rolling assembly. Under the action of entering the battery box, the installation of the battery pack is completed. The disassembly and assembly structure can select the corresponding installation and disassembly positions according to actual needs, which makes the disassembly and installation of the battery pack more flexible, and the rolling components in it reduce the size of the battery pack. The friction between the pack and the battery box during installation and disassembly, and the push assembly in the battery box facilitates the quick disassembly of the battery pack, improves the disassembly and assembly efficiency of the battery pack, and saves disassembly and assembly costs.

2. In addition, the battery box is rotated by the corresponding angle under the action of the driving motor, and the box door of the battery box is opened and closed through the cylinder II, so that the installation and disassembly process of the battery pack is automated and the labor intensity of the staff is reduced. , reducing the cost of disassembly and assembly; there are multiple shock absorption components inside the battery box, and the shock absorption components are in contact with the battery pack. During the driving process of the electric vehicle, when resonance occurs, the shock absorption components will play a role in the battery pack. The protective effect prevents the safety problems caused by the collision between the battery pack and the battery box, and improves the service life of the battery pack; the inner wall of the supporting box is provided with a cooling fan, which will conduct the heat generated by the battery pack during use. Going out, the temperature of the battery pack is lowered, and the service life of the battery pack is further extended.

In summary, the overall structure of the power battery pack disassembly and assembly structure is simple, and the corresponding installation and disassembly positions can be selected according to actual needs, which makes the disassembly and installation of the battery pack more flexible, reduces the labor intensity of the staff, and makes the disassembly and installation easier. High efficiency, saving disassembly and assembly costs, and the battery pack has good shock absorption and heat dissipation effects, extending the service life of the battery pack.

Description of drawings

Below is a brief description of the content expressed in each of the accompanying drawings in the description of the present utility model and the marks in the figures:

Fig. 1 is the structural representation of the utility model;

2 is a schematic diagram of the internal structure of the battery box in the utility model;

3 is a schematic diagram of the external structure of the battery box in the utility model;

Fig. 4 is the full sectional view of the battery box in the utility model;

The symbols in the above figures are: 1. Supporting box, 2. Battery box, 21. Box door, 22. Connecting shaft I, 23. Connecting shaft II, 3. Rolling assembly, 31. Support block, 32. Fixed support Ear, 33. Roller, 4. Pushing assembly, 41. Cylinder I, 42. Damping block, 5. Driving motor, 6. Fixing bracket, 7. Damping component, 71. Fixing plate I, 72. Fixing plate II, 73. Guide column, 74. Spring, 8. Positioning bracket, 9. Cylinder II, 10. Electronic lock, 11. Cooling fan.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and the following embodiments are used to illustrate The present invention is not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner" and "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, with a specific orientation. Therefore, it should not be construed as a limitation on the present invention.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection. Removal connection, or integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

The specific embodiment of the present invention is as follows: as shown in Figures 1 to 4, a disassembly and assembly structure for a power battery pack includes a support box 1 and a battery box 2 arranged inside it, and an opening is provided on the support box 1 , the openings can be arranged on both sides and the bottom of the support box 1, and the battery pack can be removed or installed from the corresponding openings according to actual needs, which improves the flexibility of installation and removal. The two ends of the support box 1 and the battery The box 2 is rotatably connected, the battery box 2 is provided with a box door 21, the battery box 2 is provided with a rolling component 3 supporting the battery pack and a pushing component 4 for pushing the battery pack away from the electric vehicle through the box door 21. In the present invention, the battery box 2 is rotated so that the box door 21 is aligned with the opening, and then the battery pack is separated from the supporting box 1 by the pushing component 4 under the action of the rolling component 3, thereby completing the disassembly of the battery pack. The battery box 2 aligns the box door 21 with the opening, and then pushes the battery pack into the battery box 2 under the action of the rolling assembly 3 to complete the installation of the battery pack. The disassembly and assembly structure can be selected according to actual needs. The disassembly position makes the disassembly and installation of the battery pack more flexible, and the rolling assembly 3 in it reduces the friction between the battery pack and the battery box 2 during installation and disassembly, and the push assembly in the battery box 2 facilitates the quick disassembly of the battery pack, improving the The disassembly and assembly efficiency of the battery pack is improved, and the disassembly and assembly cost is saved.

Specifically, as shown in FIG. 1 , the two ends of the battery box 2 are respectively connected with a connecting shaft I22 and a connecting shaft II23, the inner walls of both ends of the supporting box 1 are respectively fixed with bearings, and the end of the connecting shaft I22 away from the battery box 2 passes through The bearing is rotatably connected to one end of the support box 1, and the end of the connecting shaft II23 away from the battery box 2 is rotatably connected to the other end of the support box 1 through the bearing. A fixed bracket 6 is installed outside the support box 1, and a drive is arranged on the fixed bracket 6. Motor 5, the output shaft of the drive motor 5 is connected to the end of the connecting shaft II23 extending out of the support box 1 through a coupling, the drive motor 5 can use a stepper motor, and the rotation angle of the stepper motor is controlled by the driver, and the driver can be used. Using EZC552, the angle that needs to be rotated is controlled by programming, and the battery box 2 is driven to rotate by the corresponding angle through the driving motor 5, so that the box door 21 is aligned with the opening, so as to facilitate the disassembly and installation of the battery pack, and reduce the labor intensity of the staff. Reduced disassembly cost.

Specifically, as shown in FIGS. 2 to 4 , the rolling assembly 3 includes a support block 31 , a fixed lug 32 and a roller 33 , the support block 31 is fixed on the bottom of the battery box 2 , and the fixed lugs 32 are provided with two They are respectively fixed on both sides of the upper end of the support block 31, and the rollers 33 are rotatably connected between the two fixed lugs 32 through the rotating shaft, so that the battery pack is in contact with the rollers 33, which reduces the installation and removal of the battery pack and the battery box 2. The above-mentioned rolling components 3 are provided in multiples and are evenly distributed at the bottom of the battery box 2, which further improves the installation and removal efficiency of the battery pack.

Specifically, as shown in FIG. 2, the push assembly 4 includes a cylinder I41, and a shock-absorbing block 42 is connected to the protruding end of the piston rod of the cylinder I41, which prevents the piston rod of the cylinder I41 from directly contacting the battery pack and causing damage to the battery. The battery pack is damaged, which improves the safety of the battery pack during the disassembly process and improves the service life of the battery pack.

Optimally, as shown in FIG. 3 and FIG. 4 , one side of the battery box 2 is connected with a positioning bracket 8 through a bearing, and a cylinder II9 is fixedly installed on the positioning bracket 8 , and the piston extension end of the cylinder II9 is connected to one side of the box door 21 . Rotating the connection, the box door 21 can be opened and closed by controlling the expansion and contraction of the piston of the cylinder II9, which saves manpower. In addition, in order to make the battery box 2 more stable after closing, and play the role of anti-theft, the battery box 2 is provided with a matching box. The door 21 is connected to the electronic lock 10.

Optimally, as shown in FIG. 4 , the top of the battery box 2 is also provided with a plurality of shock absorbing assemblies 7 in contact with the battery pack. The shock absorbing assemblies 7 include a fixing plate I71 , a fixing plate II72 , a guide post 73 and a spring 74 . , the fixed plate I71 is fixed on the inner wall of the battery box 2, the fixed plate I71 is connected with the fixed plate II72 through the spring 74, the spring 74 is sleeved with the guide post 73, and the guide post 73 prevents the spring from being skewed and acts as an elastic guide One end of the guide column 73 is fixedly connected with the fixed plate II 72, and the other end of the guide column 73 passes through the battery box 2 through the fixed plate I 71. When the electric vehicle resonates during the driving process, the fixed plate II 72 is under the action of the elastic force of the spring 74. Contact with the battery pack prevents the safety problem caused by the direct collision between the battery box 2 and the battery pack, and plays a role in protecting the battery pack. A shock-absorbing sheet of shock-absorbing material such as rubber can be set outside the fixing plate II72 to further Protect the role of the battery pack. As shown in FIG. 1 , a cooling fan 11 is arranged on the inner wall of the support box 1 . The cooling fan 11 conducts the heat generated when the battery pack is used, reduces the temperature of the battery pack, and further prolongs the service life of the battery pack.

An electric vehicle includes the above-mentioned disassembly and assembly structure for a power battery pack, wherein a support box 1 is fixed on the chassis of the vehicle body.

The process of disassembling the battery pack using this disassembly structure is as follows: first, according to the actual disassembly needs, the driving motor 5 works to drive the battery box 2 to rotate a corresponding angle, so that the box door 21 is aligned with the corresponding opening; then, the electronic lock is activated. 10. Keep the box door 21 in the open state, and then the piston rod of the driving cylinder II9 is extended, thereby driving the box door 21 to open; finally, the piston rod of the driving cylinder I41 is extended and acts on the battery pack, so that the battery pack is in the rolling assembly 3. Under the rolling support of the electric vehicle, it passes through the box door 21 and the opening in turn, and then leaves the electric vehicle, and then uses the lifting mechanism to place the battery pack in the corresponding position. The principle of the installation process of the battery pack is the same as that of the disassembly process. The difference is that when the battery pack enters the battery box 2 , the battery pack needs to be pushed into the battery box 2 manually.

In summary, the overall structure of the power battery pack disassembly and assembly structure is simple, and the corresponding installation and disassembly positions can be selected according to actual needs, which makes the disassembly and installation of the battery pack more flexible, reduces the labor intensity of the staff, and makes the disassembly and installation easier. High efficiency, saving disassembly and assembly costs, and the battery pack has good shock absorption and heat dissipation effects, extending the service life of the battery pack.

The above description is only used to illustrate some principles of the present utility model. This specification is not intended to limit the present utility model to the specific structure and scope of application shown. Therefore, all the corresponding modifications and equivalents that may be used may be used. , all belong to the scope of the patent applied for by the utility model.

Claims (10)

1. A disassembly and assembly structure for a power battery pack, characterized in that it comprises a support box (1) and a battery box (2) provided therein, wherein an opening is provided on the support box (1), and the support box (1) is provided with an opening. The two ends of the box body (1) are rotatably connected to the battery box (2), a box door (21) is arranged on the battery box (2), and a roller supporting the battery pack is arranged in the battery box (2) The assembly (3) and the push assembly (4) for pushing the battery pack out of the electric vehicle through the box door (21) and the opening. 2 . The disassembly and assembly structure for a power battery pack according to claim 1 , wherein the two ends of the battery box ( 2 ) are respectively connected with a connecting shaft I ( 22 ) and a connecting shaft II ( 23 ). One end of the connecting shaft I (22) away from the battery box (2) is rotatably connected to one end of the support box (1), and the end of the connecting shaft II (23) away from the battery box (2) is connected with the support box (1). The other end of (1) is rotatably connected, the support box (1) is provided with a drive motor (5), and the output shaft of the drive motor (5) extends through the coupling to the connecting shaft II (23) connected to one end of the support box (1). 3. The disassembly and assembly structure for a power battery pack according to claim 2, characterized in that, bearings are respectively fixed on the inner walls of both ends of the support box (1), the connecting shaft I (22), the connecting shaft II (23) are respectively connected with the supporting box (1) in rotation through bearings. 4. The disassembly and assembly structure for a power battery pack according to claim 2, characterized in that a fixing bracket (6) is installed outside the support box (1), and the drive is arranged on the fixing bracket (6). motor (5). 5. The disassembly and assembly structure for a power battery pack according to any one of claims 1 to 4, wherein the rolling assembly (3) comprises a support block (31), a fixing lug (32) and a roller (33) ), the support block (31) is fixed on the bottom of the battery box (2), the fixing lugs (32) are provided with two and are respectively fixed on both sides of the upper end of the support block (31), the rollers (33) is rotatably connected between the two fixed lugs (32) through a rotating shaft; a plurality of the rolling assemblies (3) are provided and are evenly distributed at the bottom of the battery box (2). 6. The disassembly and assembly structure for a power battery pack according to claim 5, wherein the push assembly (4) comprises a cylinder I (41), and the protruding end of the piston rod of the cylinder I (41) is connected to There are damping blocks (42). 7 . The disassembly and assembly structure for a power battery pack according to claim 6 , wherein the top end inside the battery box ( 2 ) is further provided with a plurality of shock absorbing components ( 7 ) in contact with the battery pack, and the The shock absorber assembly (7) includes a fixed plate I (71), a fixed plate II (72), a guide column (73) and a spring (74), and the fixed plate I (71) is fixed on the battery box (2). On the inner wall, the fixing plate I (71) is connected with the fixing plate II (72) through the spring (74), the spring (74) is sleeved with the guide post (73), and the guide post (73) ) is fixedly connected to the fixing plate II (72), and the other end of the guide post (73) passes out of the battery box (2) through the fixing plate I (71). 8. The disassembly and assembly structure for a power battery pack according to claim 6, wherein a positioning bracket (8) is connected to one side of the battery box (2) through a bearing, and the positioning bracket (8) is fixed on the A cylinder II (9) is installed, and the extending end of the piston of the cylinder II (9) is rotatably connected to one side of the box door (21); the battery box (2) is provided with a connection with the box door (21). 21) Connected electronic lock (10). 9 . The disassembly and assembly structure for a power battery pack according to claim 6 , wherein a cooling fan ( 11 ) is arranged on the inner wall of the support box ( 1 ). The openings are provided on the sides and the bottom. 10 . An electric vehicle, characterized in that it comprises the disassembly and assembly structure for a power battery pack according to any one of claims 1 to 9 , wherein the support box ( 1 ) is fixed on the chassis of the vehicle body.

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