CN209037546U - Battery swapping base unit, car chassis and electric vehicle - Google Patents

Abstract

The utility model discloses one kind to change electric bottom plate apparatus, automobile chassis and electric car, it is described that change electric bottom plate apparatus include bottom plate and multiple latch assemblies, the bottom surface of the bottom plate is equipped at least one groove being recessed upwards, the groove is used for placing battery packet, and multiple latch assemblies are connected in the groove and for being removably attachable to the battery pack.The automobile chassis includes battery pack and changes electric bottom plate apparatus as described above, and the battery pack matches in the groove and is removably attachable to the groove.The electric car includes automobile chassis as described above.The utility model changes electric bottom plate apparatus, automobile chassis and electric car, and battery pack is mounted in the groove of bottom plate by multiple latch assemblies, without installing the fixed bracket of battery pack, mitigates complete vehicle weight, and greatly reduce cost.

Description

Battery swapping base unit, car chassis and electric vehicle

technical field

The utility model relates to a power exchange bottom plate device, an automobile chassis and an electric automobile.

Background technique

At present, the battery packs are all installed on the bottom plate of the electric vehicle. First, the battery pack fixing bracket is installed on the bottom plate of the electric vehicle, and then the battery pack is installed on the battery pack fixing bracket. Since the battery pack fixing bracket needs to be equipped, the design cost and the production cost are increased. At the same time, the battery pack fixing bracket is added in the electric vehicle, which also increases the weight and manufacturing cost of the whole vehicle.

Utility model content

The technical problem to be solved by the utility model is to overcome the defect that the base plate of the existing electric vehicle needs to be installed with a battery pack fixing bracket, which increases the design cost and production cost, and also increases the weight and manufacturing cost of the whole vehicle, and provides a battery replacement. Floor units, car chassis and electric vehicles.

The utility model solves the above-mentioned technical problems through the following technical solutions:

A power exchange bottom plate device is characterized in that it comprises a bottom plate and a plurality of locking assemblies, the bottom surface of the bottom plate is provided with at least one upwardly concave groove, the groove is used for placing a battery pack, and a plurality of the The locking assembly is connected in the groove and used for detachably connecting to the battery pack.

In this solution, the above-mentioned structural form is adopted, and the battery pack is installed in the groove on the bottom plate through a plurality of locking assemblies, without installing the battery pack fixing bracket, which reduces the weight of the whole vehicle and greatly reduces the cost.

Preferably, the groove includes two longitudinal side wall portions, and the two longitudinal side wall portions are disposed opposite to each other, and a plurality of the locking assemblies are respectively connected to the two longitudinal side wall portions and extend along the longitudinal direction. The longitudinal side wall portion is distributed in the length direction;

The battery pack can move in the groove along the length direction of the longitudinal side wall portions, and the two longitudinal side wall portions are used for detachably connecting to the battery pack through a plurality of the locking assemblies on both sides.

In this solution, the above structure is adopted, and the battery pack is moved in the groove along the length direction of the longitudinal side wall portion, so that the two sides of the battery pack can be detachably connected to a plurality of locking components, the installation and disassembly are very convenient, and the connection Stablize.

Preferably, the locking assembly includes a first locking mechanism, the first locking mechanism includes a mounting seat, the mounting seat is connected to the longitudinal side wall portion, and the mounting seat has a mounting seat for the The locking shaft of the battery pack is connected to a fixed locking groove, and the locking groove and the locking shaft of the battery pack are correspondingly arranged;

The first locking mechanism further includes a locking linkage portion, which is rotatably connected to the mounting seat or is telescopically installed on the longitudinal side wall portion, and the locking linkage portion is relative to the The mounting seat can move so that the locking linkage portion protrudes into the locking groove to prevent the locking shaft from leaving the locking groove or exits the locking groove to allow the locking shaft to leave the locking groove. the locking slot.

In this solution, the above-mentioned structural form is adopted, and the locking shaft can be installed and disassembled in the locking groove, which is convenient to use and has a simple structure.

In addition, by inserting the locking linkage portion into the locking groove, the locking shaft can be effectively prevented from leaving the locking groove, which greatly improves the reliability of the locking assembly and reduces or avoids the occurrence of the battery pack falling off.

Preferably, the locking groove includes an entrance and a locking cavity, the entrance is communicated with the locking cavity, and the extending direction of the entrance is the same as the concave direction of the groove, and the locking The extending direction of the cavity is the same as the length direction of the longitudinal side wall portion.

Preferably, the locking assembly further includes a second locking mechanism, the second locking mechanism is arranged on the movement path of the locking linkage portion and is used to restrict the installation of the locking linkage portion relative to the The seat moves to lock the battery pack.

In this solution, by adopting the above structure, the movement of the locking linkage portion can be restricted by the second locking mechanism, so that the locking linkage portion will not rotate during the use of the battery pack, thereby greatly improving the reliability of the locking assembly , to further reduce or avoid the occurrence of the battery pack falling off.

Preferably, the power exchange bottom plate device further includes at least one support mechanism, the support mechanism is connected to the longitudinal side wall portion, the support mechanism includes a positioning support block, and the positioning support block has a The locking shaft of the battery pack supports a fixed positioning support groove, and the lower surface of the positioning support groove and the lower surface of the locking groove are located on the same plane.

In this solution, the above-mentioned structural form is adopted, and the connection strength between the battery pack and the bottom plate is further strengthened through the support function of the plurality of positioning support grooves, and the safety and stability of the power exchange bottom plate device is improved.

Preferably, the longitudinal side wall portion has at least one first positioning hole and at least one mounting hole, and the side of the locking assembly facing the longitudinal side wall portion has at least one first positioning post and at least one mounting portion. , the first positioning post is inserted into the first positioning hole, and the mounting portion is connected with the mounting hole.

In this solution, the above-mentioned structural form is adopted to achieve precise installation and positioning of the locking assembly on the longitudinal side wall portion, and convenient installation and disassembly.

Preferably, the power exchange base plate device further includes an electrical connector, the electrical connector is located in the groove, the groove includes a lateral side wall portion, and the electrical connector is connected to the lateral side wall. The side wall portion is also used for electrical connection with the battery pack.

In this solution, the above-mentioned structural form is adopted, and the power supply of the battery pack and the communication electric signal are reliably transmitted to the electric control system of the whole vehicle through the electric connector.

Preferably, the lateral side wall portion has at least one second positioning hole, the side of the electrical connector facing the lateral side wall portion has at least one second positioning post, and the second positioning post is inserted into the in the second positioning hole.

In this solution, using the above structure, the electrical connector is inserted into the second positioning hole through the second positioning post, so that the electrical connector is accurately installed and positioned on the lateral side wall, and the gap between the electrical connector and the battery pack is ensured. precise electrical connection.

Preferably, the power exchange bottom plate device includes a plurality of reinforcing ribs, and the reinforcing ribs are connected to the top of the bottom plate and the outer surface of the groove.

In this solution, the above-mentioned structural form is adopted, and the reinforcing ribs play a role of strengthening and fastening, and the connection strength between the groove and the bottom plate is effectively strengthened by several reinforcing ribs, and the safety and stability of the power exchange bottom plate device is improved.

Preferably, the battery-swapping baseboard device further includes a plurality of sensors, and the plurality of sensors are connected to the baseboard and used to detect the position of the battery pack.

In this solution, using the above structure, the sensor can detect the specific position of the battery pack during installation and disassembly, so as to realize accurate replacement of the battery pack.

An automobile chassis is characterized in that it includes a battery pack and the above-mentioned power exchange bottom plate device, wherein the battery pack is matched with the groove and can be detachably connected to the groove.

An electric vehicle is characterized in that it includes the vehicle chassis as described above.

In this solution, the above-mentioned structural form is adopted to realize the installation of the battery pack in the groove of the bottom plate on the vehicle chassis, so that the battery pack fixing bracket does not need to be installed on the vehicle chassis, the weight of the whole vehicle is reduced, and the electric power consumption is greatly reduced. the cost of the car.

On the basis of conforming to common knowledge in the art, the above preferred conditions can be arbitrarily combined to obtain preferred examples of the present invention.

The positive progressive effect of the present utility model is:

In the power exchange bottom plate device, the automobile chassis and the electric vehicle of the utility model, the battery pack is installed in the groove on the bottom plate through a plurality of locking components, and there is no need to install the battery pack fixing bracket, the weight of the whole vehicle is reduced, and the cost is greatly reduced .

Description of drawings

FIG. 1 is a schematic structural diagram of a power exchange bottom plate device of an automobile chassis according to an embodiment of the present invention.

FIG. 2 is another schematic structural diagram of a power exchange bottom plate device of an automobile chassis according to an embodiment of the present invention.

FIG. 3 is a schematic structural diagram of a locking assembly of a power exchange bottom plate device of an automobile chassis according to an embodiment of the present invention.

FIG. 4 is a schematic three-dimensional structural diagram of a locking assembly of a power exchange bottom plate device of an automobile chassis according to an embodiment of the present invention.

5 is a schematic structural diagram of a longitudinal side wall portion of a groove of a bottom plate of a power exchange bottom plate device of an automobile chassis according to an embodiment of the present invention.

FIG. 6 is a schematic structural diagram of an electrical connector of a power exchange bottom plate device of an automobile chassis according to an embodiment of the present invention.

7 is a schematic structural diagram of a lateral side wall portion of a groove of a bottom plate of a power exchange bottom plate device of an automobile chassis according to an embodiment of the present invention.

Description of reference numbers:

Bottom plate 1

Groove 11

Longitudinal side wall portion 111

Mounting hole 1111

The first positioning hole 1112

Lateral side wall portion 112

Second positioning hole 1121

locking kit 2

first locking mechanism 21

Mount 211

locking slot 212

Entrance 2121

lock chamber 2122

locking linkage 213

Second locking mechanism 22

support mechanism 3

Positioning the support block 31

Positioning support groove 32

electrical connector 4

stiffener 5

Sensor 6

Detailed ways

The present invention will be more clearly and completely described below by means of the embodiments and in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the embodiments.

As shown in FIG. 1 to FIG. 7 , the vehicle chassis according to the embodiment of the present invention includes a battery pack and a power exchange bottom plate device. The power exchange base plate device includes a base plate 1 and a plurality of locking assemblies 2. The bottom surface of the base plate 1 is provided with at least one upwardly recessed groove 11. The groove 11 is used for placing battery packs, and the plurality of locking assemblies 2 are connected to the grooves. 11 and used to be detachably connected to the battery pack, the battery pack matches the groove 11 and is detachably connected to the groove 11 . The battery pack is inserted into the groove 11 and connected with the plurality of locking assemblies 2, so that the battery pack is installed on the base plate 1; through the disassembly between the battery pack and the plurality of locking assemblies 2, the battery pack can be disengaged from the grooves 11 was taken out. The battery pack is installed in the groove 11 located on the base plate 1 through a plurality of locking assemblies 2, and it is not necessary to install the battery pack fixing bracket separately, thereby reducing the weight of the whole vehicle and greatly reducing the cost.

The structure of the bottom plate 1 is a plate-like structure, and the grooves 11 on the bottom plate 1 can be integrally formed by deep drawing, stamping or casting processes. The number of grooves 11 is not limited, and the grooves 11 can be made according to the shape of standard battery packs on the market, so as to ensure that the power exchange station can meet the needs of power exchange for automobile chassis of different brands and models. The groove 11 can also be designed according to the interior space of the chassis of different brands and models of automobiles, so as to meet the personalized design of the OEM and improve the space utilization rate. In FIGS. 1 and 2 of this embodiment, one groove 11 is located at the bottom of the front seat and the footrest of the front and rear seats, and the other groove 11 is located at the bottom of the rear seat, using the space at the bottom of the rear seat, The other groove 11 can be deeper to increase the capacity of the battery pack.

The groove 11 may include two longitudinal side wall portions 111 , and the two longitudinal side wall portions 111 are disposed opposite to each other. Distributed in the length direction, the battery pack can move in the groove 11 along the length direction of the longitudinal side wall portion 111 , and the two longitudinal side wall portions 111 are detachably connected to both sides of the battery pack through a plurality of locking assemblies 2 . By moving the battery pack in the groove 11 along the length of the longitudinal side wall portion 111 , the two sides of the battery pack can be detachably connected to the plurality of locking assemblies 2 , which is very convenient for installation and removal, and the connection is stable.

The longitudinal side wall portion 111 has at least one first positioning hole 1112 and at least one mounting hole 1111, and the side of the locking assembly 2 facing the longitudinal side wall portion 111 has at least one first positioning post and at least one mounting portion, the first positioning post Inserted into the first positioning hole 1112 , the mounting portion is connected to the mounting hole 1111 . The locking assembly 2 is inserted into the first positioning hole 1112 through the first positioning column, and then the mounting portion is connected with the mounting hole 1111 , so that the locking assembly 2 is accurately mounted and positioned on the longitudinal side wall portion 111 . The number of the mounting holes 1111 and the first positioning holes 1112 are both two, the two first positioning holes 1112 are composed of a circular hole and a slot hole that are not on the same axis, and the mounting holes 1111 are composed of two same axis made of round holes. The plurality of locking assemblies 2 can be connected to the longitudinal side wall portions 111 on both sides by screwing, and the plurality of locking assemblies 2 can also be welded to the longitudinal side wall portions 111 on both sides.

The locking assembly 2 includes a first locking mechanism 21, the first locking mechanism 21 includes a mounting seat 211, the mounting seat 211 is connected to the longitudinal side wall portion 111, and the mounting seat 211 has a lock for connecting and fixing the locking shaft of the battery pack. The locking groove 212, the locking groove 212 and the locking shaft of the battery pack are correspondingly arranged. By inserting the battery pack into the groove 11 and moving in the groove 11, the locking shaft of the battery pack is inserted into the locking groove 212, so that the battery pack is connected to the first locking mechanism 21, and the battery pack is installed on the bottom plate 1. If the battery pack is disassembled from the first locking mechanism 21, the battery pack can be disengaged from the groove 11. It is convenient to use and has a simple structure.

The first locking mechanism 21 further includes a locking linkage portion 213 . The locking linkage portion 213 is rotatably connected to the mounting seat 211 or is telescopically mounted on the longitudinal side wall portion 111 . The locking linkage portion 213 is opposite to the mounting seat 211 . It can be moved so that the locking linkage portion 213 protrudes into the locking groove 212 to prevent the locking shaft from leaving the locking groove 212 or exits the locking groove 212 to allow the locking shaft to leave the locking groove 212 . During the movement of the locking interlocking portion 213 , the locking interlocking portion 213 can rotate and move, and the locking interlocking portion 213 will be inserted into the locking groove 212 or withdrawn from the locking groove 212 . During the use of the battery pack, the locking shaft of the battery pack is inserted into the locking groove 212, and the locking linkage part 213 is inserted into the locking groove 212, which can effectively prevent the locking shaft from leaving the locking groove 212 and greatly improve the locking effect. The reliability of the component 2 reduces or avoids the occurrence of the battery pack falling off.

The locking groove 212 includes an inlet 2121 and a locking cavity 2122. The inlet 2121 communicates with the locking cavity 2122, and the extension direction of the inlet 2121 is the same as the recessed direction of the groove 11, and the extension direction of the locking cavity 2122 is the same as that of the longitudinal side wall. The longitudinal directions of the portions 111 are the same. When the battery pack is vertically inserted into the groove 11, at this time, the lock shaft of the battery pack enters the locking groove 212 through the inlet 2121; the battery pack is in the groove 11 along the length of the longitudinal side wall 111. When the direction moves, the lock shaft of the battery pack will enter the lock cavity 2122, and the lock groove 212 limits the lock shaft, so that the battery pack can be installed and connected in the groove 11, which is very convenient to use. Preferably, the extending direction of the inlet 2121 is perpendicular to the extending direction of the locking cavity 2122, and the shape of the inlet 2121 is trumpet-shaped, which facilitates the insertion of the locking shaft of the battery pack.

The locking assembly 2 further includes a second locking mechanism 22 . The second locking mechanism 22 is disposed on the moving path of the locking linkage portion 213 and is used to limit the movement of the locking linkage portion 213 relative to the mounting seat 211 to lock the battery pack. . When the battery pack is in use, the locking shaft of the battery pack is inserted into the locking groove 212, the locking linkage portion 213 is inserted into the locking groove 212, and the second locking mechanism 22 will restrict the movement of the locking linkage portion 213, so that the locking linkage portion 213 is moved. When the battery pack is in use, the locking linkage portion 213 will not rotate, that is, the locking linkage portion 213 will not withdraw out of the locking groove 212 , thereby greatly improving the reliability of the locking assembly 2 and further reducing or avoiding the battery pack. The occurrence of shedding. Wherein, the second locking mechanism 22 can be a telescopic mechanism. When the battery pack is installed in the groove 11, the telescopic mechanism will extend and abut against the locking linkage portion 213, thereby restricting the movement of the locking linkage portion 213. Thus, the battery pack is effectively prevented from falling out of the groove 11 . When the battery pack needs to be removed from the groove 11, the telescopic mechanism will retract and no longer touch the locking linkage portion 213, so that the locking linkage portion 213 can move and exit the locking groove 212, so as to allow the battery pack to be removed. The pin is separated from the groove 11 , so that the battery pack can be disassembled from the groove 11 .

The power exchange bottom plate device also includes at least one support mechanism 3, the support mechanism 3 is connected to the longitudinal side wall portion 111, the support mechanism 3 includes a positioning support block 31, and the positioning support block 31 has a positioning support for the locking shaft of the battery pack to support and fix For the groove 32, the lower surface of the positioning support groove 32 and the lower surface of the locking groove 212 are located on the same plane. The shape of the positioning support groove 32 can be consistent with the shape of the locking groove 212. When the pins of the battery pack are inserted into the locking grooves 212, other pins of the battery pack are also inserted into the positioning support grooves 32 accordingly. The supporting function of the positioning support grooves 32 further strengthens the connection strength between the battery pack and the bottom plate 1, and improves the safety and stability of the power exchange bottom plate device.

The power exchange base plate device also includes an electrical connector 4, the electrical connector 4 is located in the groove 11, the groove 11 includes a lateral side wall portion 112, and the electrical connector 4 is connected to the lateral side wall portion 112 and is used for connecting with the battery pack. electrical connection. The battery pack is inserted, installed and connected in the groove 11, and the power exchange base plate device is electrically connected to the battery pack through the electrical connector 4; the battery pack is separated from the groove 11, and the electrical connection between the electrical connector 4 and the battery pack is disconnected ; Reliably transmit the power supply and communication signal of the battery pack to the vehicle electronic control system through the electrical connector 4 . Wherein, the lateral side wall portion 112 is arranged along the width direction of the vehicle, and the two longitudinal side wall portions 111 are arranged along the length direction of the vehicle.

The lateral side wall portion 112 has at least one second positioning hole 1121 , the side of the electrical connector 4 facing the lateral side wall portion 112 has at least one second positioning post, and the second positioning post is inserted into the second positioning hole 1121 . The electrical connector 4 is inserted into the second positioning hole 1121 through the second positioning post, so that the electrical connector 4 is precisely mounted and positioned on the lateral side wall portion 112 , and the precise electrical connection between the electrical connector 4 and the battery pack is ensured.

The power exchange base plate device may include a plurality of reinforcing ribs 5 , and the reinforcing ribs 5 are connected to the top of the base plate 1 and the outer surface of the groove 11 . The reinforcing ribs 5 play a role of strengthening and fastening, and the connection strength between the groove 11 and the bottom plate 1 is effectively strengthened by several reinforcing ribs 5, and the safety and stability of the power exchange bottom plate device is improved. The reinforcing rib 5 may be a steel plate, which is welded to the bottom plate 1 and the groove 11 through the steel plate.

The battery-exchange baseboard device may also include a plurality of sensors 6, and the plurality of sensors 6 are connected to the baseboard 1 and used to detect the position of the battery pack. The sensor 6 can detect the specific position of the battery pack during installation and disassembly. During the replacement process of the battery pack at the power exchange station, several sensors 6 transmit the position of the battery pack detected in real time to the power exchange station to realize the accurate replacement of the battery pack.

The embodiment of the present utility model also discloses an electric vehicle, which includes the above-mentioned vehicle chassis. The vehicle chassis is used to install the battery pack in the groove 11 in the bottom plate 1 of the vehicle chassis, so that there is no need to install the battery pack fixing bracket on the vehicle chassis, the weight of the whole vehicle is reduced, and the cost of the electric vehicle is greatly reduced.

Although the specific embodiments of the present invention are described above, those skilled in the art should understand that this is only an example, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims (13)

1. A power exchange bottom plate device, characterized in that it comprises a bottom plate and a plurality of locking assemblies, the bottom surface of the bottom plate is provided with at least one upwardly concave groove, and the groove is used for placing a battery pack, and a plurality of The locking assembly is connected in the groove and used to be detachably connected to the battery pack. 2 . The power exchange base plate device according to claim 1 , wherein the groove includes two longitudinal side wall parts, and the two longitudinal side wall parts are arranged opposite to each other, and a plurality of the locking The components are respectively connected to the two longitudinal side wall portions and are distributed along the length direction of the longitudinal side wall portions; The battery pack can move in the groove along the length direction of the longitudinal side wall portions, and the two longitudinal side wall portions are used for detachably connecting to the battery pack through a plurality of the locking assemblies on both sides. 3 . The power exchange baseboard device according to claim 2 , wherein the locking assembly comprises a first locking mechanism, the first locking mechanism comprises a mounting seat, and the mounting seat is connected to the the longitudinal side wall portion, the mounting seat is provided with a locking groove for connecting and fixing the locking shaft of the battery pack, the locking groove and the locking shaft of the battery pack are correspondingly arranged; The first locking mechanism further includes a locking linkage portion, which is rotatably connected to the mounting seat or is telescopically installed on the longitudinal side wall portion, and the locking linkage portion is relative to the The mounting seat can move so that the locking linkage portion extends into the locking slot to prevent the locking shaft from leaving the locking slot or exits the locking slot to allow the locking shaft to leave the locking slot. the locking slot. 4 . The power exchange baseboard device according to claim 3 , wherein the locking slot comprises an inlet and a locking cavity, the inlet is communicated with the locking cavity, and the extension direction of the inlet is 4 . The extending direction of the locking cavity is the same as the length direction of the longitudinal side wall portion, which is the same as the concave direction of the groove. 5 . The power exchange baseboard device according to claim 3 , wherein the locking assembly further comprises a second locking mechanism, and the second locking mechanism is arranged on the moving path of the locking linkage part. 6 . and is used for restricting the movement of the locking linkage portion relative to the mounting seat to lock the battery pack. 6 . The power exchange bottom plate device according to claim 3 , wherein the power exchange bottom plate device further comprises at least one support mechanism, the support mechanism is connected to the longitudinal side wall portion, and the support mechanism comprises: 6 . The positioning support block is provided with a positioning support groove for the locking shaft of the battery pack to support and fix, and the lower surface of the positioning support groove and the lower surface of the locking groove are located on the same plane. 7 . The power exchange base plate device according to claim 2 , wherein the longitudinal side wall portion has at least one first positioning hole and at least one mounting hole, and the locking assembly faces the longitudinal side wall portion. 8 . One side has at least one first positioning column and at least one mounting portion, the first positioning column is inserted into the first positioning hole, and the mounting portion is connected with the mounting hole. 8 . The power exchange base plate device according to claim 1 , wherein the power exchange base plate device further comprises an electrical connector, the electrical connector is located in the groove, and the groove includes a lateral A side wall portion, the electrical connector is connected to the lateral side wall portion and is used for electrical connection with the battery pack. 9 . The power exchange base plate device according to claim 8 , wherein the lateral side wall portion has at least one second positioning hole, and the side of the electrical connector facing the lateral side wall portion has at least one second positioning hole. 10 . The second positioning column is inserted into the second positioning hole. 10 . The power exchange bottom plate device according to claim 1 , wherein the power exchange bottom plate device comprises a plurality of reinforcing ribs, and the reinforcing ribs are connected to the top of the bottom plate and the outer surface of the groove. 11 . . 11 . The power exchange baseboard device according to claim 1 , wherein the power exchange baseboard device further comprises a plurality of sensors, and a plurality of the sensors are connected to the baseboard and are used to detect the battery pack. 12 . Location. 12. An automobile chassis, characterized in that it comprises a battery pack and the power-exchange floor device according to any one of claims 1-11, wherein the battery pack is matched with the groove and can be detachably connected in the groove. 13. An electric vehicle, characterized in that it comprises the vehicle chassis of claim 12.