WO2020143598A1

WO2020143598A1 - Manual quick-swap-type universal traction battery for new energy vehicle

Info

Publication number: WO2020143598A1
Application number: PCT/CN2020/070622
Authority: WO
Inventors: 王宁豪
Original assignee: 王宁豪
Priority date: 2019-01-11
Filing date: 2020-01-07
Publication date: 2020-07-16
Also published as: CN109808516A

Abstract

Disclosed is a manual quick-swap-type universal traction battery for a new energy vehicle. The traction battery comprises a battery body (1), wherein the battery body (1) is provided with a quick-swap interface (2), and the quick-swap interface (2) comprises a main electrical interface; the battery body (1) is connected to a new energy vehicle during use; and the area of any projection of the battery body (1) is less than 0.09 square meters, and the battery body has a thickness of less than or equal to 140 mm, and a weight of less than 12 Kg. The battery body (1) is small in size and lightweight, and is easily distributed and combined on a vehicle, and the battery body (1) is provided with the quick-swap interface (2), thereby facilitating a quick battery swap for electric energy replenishment for a new energy vehicle; in addition, the battery body (1) is equipped with a gripping device, the gripping device can grip the battery body (1), and the gripping device can be held in a hand for gripping, thus being convenient and efficient. The battery body (1) is arranged inside a battery compartment, and a battery compartment door (19) is foldable so that the battery compartment door (19) can be opened in a vehicle body without being blocked.

Description

Artificial energy quick-change universal power battery for new energy vehicles

Technical field

The invention relates to the field of power batteries, in particular to a new energy vehicle manual quick-change universal power battery.

Background technique

There are many types of new energy vehicles: pure electric vehicles, extended range electric vehicles, various fuel cell vehicles, various types of hybrid vehicles, solar vehicles, low-speed electric vehicles, etc. New energy vehicles use electric drive or both electric drive and other driving methods. The electric energy comes from other on-board energy generation or external charging. Power batteries are also needed to store and output electric energy. In addition to other onboard energy sources, the power source of the power battery can be externally charged or directly replaced by the battery.

The external charging time is long, and the charging position is easily occupied by other vehicles, which cannot fully meet the needs of new energy vehicles to supplement electrical energy. The method of directly replacing the battery is fast, and can be applied together with the charging method to make up for the deficiency of the charging method. The current power replacement method uses a quick-change structure, and the power battery replacement speed is faster. However, due to the large size and weight of the power battery, special equipment is required, and the configuration of the power replacement point is large, and the layout is not easy. Moreover, due to the large size of the power battery, it is inconvenient to use the various spaces scattered in different parts of the new energy vehicle.

Summary of the invention

The technical problem to be solved by the present invention is to provide a fast-changing universal power battery for manual replacement of new energy vehicles that can be quickly replaced, with a small body size and a light weight.

The technical solution adopted by the present invention to solve the above technical problems is as follows: A manual quick-change universal power battery for new energy vehicles, including a battery body, a quick-change interface is provided on the battery body, and the quick-change interface includes a main battery Interface, the battery body is connected with a new energy vehicle when in use, and any projection area of the battery body is less than 0.09 square meters, the thickness is not more than 140mm, and the weight is less than 12Kg.

Preferably, the battery body is provided with a connection structure, which is used in conjunction with the gripping equipment.

Preferably, the connecting structure includes a locking cavity, and the inner side wall of the locking cavity cavity is fixedly provided with a boss.

Preferably, there are multiple connection structures.

Preferably, a gripping device used in conjunction with the new energy vehicle manual quick-change universal power battery includes a connecting part, and a locking component is movably arranged in the connecting part, and the locking component includes a rotating component Lock, the spin lock can enter the battery lock cavity, and after entering, rotates by a certain angle, it can bear against the lock cavity boss, to prevent the spin lock from being separated from the lock cavity.

Preferably, the gripping equipment includes a connecting portion, and a grip is provided on the connecting portion.

Preferably, the lock assembly includes a lock shaft, a plunger and a trigger switch, the connection portion is provided with a mounting hole and an adjustment hole, the lock shaft is rotatably provided in the mounting hole, the One end of the lock shaft protrudes from the connecting portion and the end is fixedly provided with a lock head, the ejector rod is axially and movably arranged in the adjustment hole, and one end of the ejector rod protrudes from the connecting portion, the A spring is arranged in the middle of the ejector rod, one end of the spring is against the ejector rod, and the other end of the spring is contacted with the connecting part, and the other end of the ejector rod is provided with a stopper for preventing the ejector rod from slipping out. The trigger switch is fixedly arranged directly above the ejector rod, and the lock shaft is driven by the motor.

Preferably, the lock head is a cone structure.

Preferably, a vehicle using the power battery includes a vehicle body, and the vehicle body is provided with a quick-change interface matching the battery body.

Preferably, the battery compartment door for installing the battery compartment of the battery body is foldable.

Compared with the prior art, the advantages of the present invention are that the body size of the battery body is small, the weight is light, it is easy to distribute and combine on the new energy vehicle, and the versatility is strong. The battery body is equipped with a quick-change interface to facilitate the rapid replacement of energy for new energy vehicles; at the same time, the battery body is equipped with grasping equipment, which can grasp the battery body, and can be grasped with handheld grasping equipment, which is convenient and fast . The battery body is arranged in the battery compartment, and the battery compartment can be fixed by a folding door structure, and the folding door structure enables the battery compartment door to be opened without being blocked in the vehicle body. The battery of the present invention can also be used in other vehicles, such as low-speed electric vehicles, that is, low-speed electric vehicles, two- and three-wheel electric vehicles, and the like.

BRIEF DESCRIPTION

Figure 1 is one of the schematic structural diagrams of the battery body of the present invention;

2 is a schematic diagram of the location of the battery quick-change interface of the present invention;

3 is a partial cross-sectional view along A-A in FIG. 2;

4 is one of the structural schematic diagrams of the connection structure and gripping equipment of the present invention;

5 is a second structural schematic diagram of the connection structure and the grabbing equipment of the present invention;

6 is a schematic view of the working state of the locking assembly of the present invention;

7 is a schematic structural view of the spin lock of the present invention;

8 is a schematic structural view of the car body of the present invention;

9 is a schematic diagram of the installation position of the power battery of the present invention.

detailed description

The present invention will be described in further detail below with reference to the embodiments of the accompanying drawings.

The new energy vehicles referred to in the present invention include all vehicles equipped with power batteries. The invention is also applied to other vehicles that can be installed with a manual quick-change universal power battery.

As shown in FIGS. 1 and 2, a new energy vehicle manual quick-change universal power battery includes a battery body 1, and the battery body 1 is provided with a quick-change interface 2, and the quick-change interface 2 includes a main battery Interface, the battery body 1 is connected to a new energy vehicle to provide electric energy for the new energy vehicle when in use; the areas of the battery body are less than 0.09 square meters, the thickness of the battery body 1 does not exceed 140 mm, and the battery body 1 The weight is less than 12Kg. The size, width, and thickness of the battery in the embodiment in the figure are 218 mm, 166 mm, and 108 mm, respectively. The area of the largest surface is 0.036 square meters, and the weight is about 6.88 kg. Example There are two sets of quick-change interfaces on the battery body, which are respectively located at the lower end of the left side of the figure and the left side of the lower end. From the orientation in the figure, they can be installed to the left or downward respectively, or they can be installed after changing the orientation of the battery. , The interface area adopts concave structure.

As shown in the partial cross-sectional view of the battery interface region of FIG. 3, the recessed area on the battery body 1 of the embodiment is provided with a quick-change interface. The quick-change interface includes an electrical connector 3 and an internal insulating fixing member 4. The electrical connector 3 includes a main electrical connection Auxiliary electrical connectors that may be on the battery and the battery body at the same time. The electrical connector 3 and the internal insulation fixing member 4 are components to realize electrical connection, and are the prior art. The specific connection mode is not described in the present invention. An insulating base surface 5 is provided in the recessed area, and the electrical connector 3 and the internal insulating fixing member 4 are located below the insulating base surface 5.

Compared with new energy vehicles, the size of the manual quick-change general-purpose power battery is small. The area of the largest surface of the single battery or the maximum projected area differs from the projected area of the passenger car in the new energy vehicle by two orders of magnitude, which is easy to use in new energy vehicles. Layout of various positions. Due to the small thickness, it can be laid out in a narrow space, such as under the floor of the passenger car; due to the small size of the shape, it can be laid out in many places, under the floor of the front foot of each seat of the passenger car, front seat It can be installed under the floor under the chair track, under the rear seats, and in the front and rear cabins of the car (set in a safer space). It can also be set in other positions according to the characteristics of the body, and innovative ideas can be applied. In larger vehicles such as passenger cars and trucks, manual quick-change general-purpose power batteries are required, because the car body is large, it is also easy to lay out. Because of its small size, it can also be flexibly combined. For example, in similar layout positions of different vehicles, due to the different sizes of layout positions, different combinations of battery numbers can be used for layout, so the applicability is wide. Due to its light weight and small load when changing power, it is suitable for most people to put it in a single hand and replace multiple batteries in a row. The power can be replaced with a special hand-held tool. The power exchange point can be set without mechanical equipment, and the layout is easy and easy to use. It can also be used for other vehicles, such as low-speed electric vehicles (also known as low-speed electric vehicles), two- and three-wheel electric vehicles. Therefore, the manual quick-change universal power battery is very versatile.

In the embodiment, the installation of the manual quick-change general-purpose power battery is not limited to downward installation, but can also be installed from other directions. As shown in FIG. 1, the battery body 1 is vertically installed with a lateral connection at the lower end of the left side, and the battery body can also be changed. 1 Self-position, after laying down, use the same interface to connect downward to install, as shown in the installation direction of Figure 5. There are more installation directions for the battery body 1 with multiple sets of interfaces. As shown in Fig. 1, the battery body also has a lower left side interface, which can be installed vertically downwards, or the battery body 1 can be changed to lie flat and use the same The interface is installed laterally. There are also other orientations and installation methods.

In a new energy vehicle, multiple manual quick-change universal power batteries can be installed at the same time, and multiple battery bodies 1 can be combined in series and parallel through the internal cable to provide power in groups. As shown in Figures 8 and 9, sixteen are installed in the car. A manual quick-change universal power battery: four batteries are installed under the floor under the front of the right front seat, under the floor on the left and right between the front seat and the rear seat, and the battery compartment of the four battery bodies are shared A battery compartment door is also installed with two battery bodies on the front two sides of the trunk. The battery compartment is arranged under the trunk, and the battery body vertical interface is installed downward. The battery compartment door can be provided on the battery compartment door. The trunk is opened (the battery compartment structure is not shown in the figure). Due to the different sizes of different new energy vehicles, the number and arrangement of batteries that are centrally arranged at each installation location during layout can be changed accordingly.

A connection structure is provided on the battery body 1, and the connection structure is used in conjunction with the gripping equipment. The manual quick-change universal power battery with connection structure can save the structure such as the grip 7 because the connection structure has a relatively small size, occupies a small battery volume, and can maintain the regular shape of the battery body, which is beneficial to the battery body in the car. Location, installed in different directions. The use of gripping equipment for power replacement is suitable for universal power replacement at widely distributed power replacement points. A single connection structure or multiple connection structures can be provided on the battery body. The single connection structure is generally provided in the middle region of the battery gripping surface (generally opposite to the surface provided with the interface).

As shown in the embodiments shown in FIG. 4 to FIG. 6, the battery body is provided with a connection structure, the connection structure includes a locking cavity, and the connection structure is used in conjunction with the gripping equipment. The battery body is provided with four connection structures. The connection structure includes a locking cavity 8. The inner wall of the locking cavity 8 is fixedly provided with a boss 11 formed by the boss 11. The socket 10 is a long hole, that is, the two sides in the longitudinal direction are straight, and the two sides in the width direction are arcs. In the figure, the grasping surface of the battery body is provided with three locking cavities 8 on the upper end surface, and the other locking The cavity 8 is at the other corner of the battery, not shown in the figure.

The battery body with multiple sets of interfaces on different surfaces can be provided with multiple gripping surfaces, and the connection structure can be set on the gripping surface. The battery body shown in FIGS. 4 and 5 has two sets of interfaces corresponding to two gripping surfaces. There are four connecting structures on the fetching surfaces. The connecting structure includes locking cavities 8, wherein the cavities of the locking cavities 8 at the boundary between the two surfaces are shared, and the locking cavities are provided with bosses 11 on the two surfaces.

The gripping equipment used with the manual quick-change general-purpose power battery can be hand-held gripping equipment or mechanical gripping equipment. The mechanical gripping equipment and the connecting portion can be flexibly connected or rigidly connected. Flexible connection: such as the form of a spreader that uses a rope lifting connection; rigid connection: if a mechanical arm is used, the connection is rigidly connected to the mechanical arm, and the connection can also be rigidly connected to the robot.

The grip of the hand-held grasping equipment is provided on the connecting portion, and the locking and releasing (rotation twist lock) of the hand-held grasping equipment and the battery can be pushed by motor or manually.

As shown in FIGS. 4 to 7, the grasping equipment pushed by a motor includes a connecting portion 6, a handle 7 is fixedly arranged on the connecting portion 6, and a plurality of locks are movably arranged in the connecting portion 6 A locking component, the locking component cooperates with the connecting structure, and the position of the locking component corresponds to the position of the connecting structure, and an independent switch battery is also provided in the connecting portion, and the switch battery is used to supply power to the motor To drive the spin lock to rotate. The lock assembly includes a spin lock. The spin lock can enter the battery lock cavity, and after entering, rotates by a certain angle, can bear against the lock cavity boss to prevent the spin lock from separating from the lock cavity.

The specific components of the locking group include a locking shaft 12, a push rod 13 and a trigger switch 15, the connecting portion 6 is provided with a mounting hole and an adjusting hole, and the locking shaft 12 is rotatably disposed in the mounting hole , One end of the lock shaft 12 protrudes from the connecting portion 6 and the end is fixedly provided with a cone-shaped lock head 16, the ejector rod 13 is axially and movably arranged in the adjustment hole, the top One end of the rod 13 protrudes from the connecting portion 6, a spring 14 is provided in the middle of the ejector rod, one end of the spring 14 abuts against the ejector rod 13, and the other end of the spring 14 abuts the connecting portion 6, the top The other end of the rod 13 is provided with a stopper 17 for preventing the ejection of the ejector rod. The trigger switch 15 is fixedly arranged directly above the ejector rod 13; the cross section of the upper end of the cone-shaped lock head 16 is long The circle is formed by the transition of four arcs, in which the radius in the length direction is larger and the radius in the width direction is smaller; the lock shaft 12 is driven and rotated by the output shaft of a motor (not shown in the figure).

When the battery body needs to be disassembled and assembled, as shown in FIG. 6(a), the locking assembly is matched and fixed to the connection structure, that is, the connection portion is aligned with the battery body 1 through the handle 7 and the lock head 16 is inserted through the socket 10 In the locking cavity 8 corresponding to it, as shown in FIG. 6(b), the handle 7 is pressed down to make the ejector rod 13 contact the battery body 1. After the ejector rod 13 contacts the battery body 1, the spring 14 is compressed and moves upward, and the compression trigger switch 15 Button and trigger, as shown in Figure 6(c), at this time the motor drives the lock shaft 12 to rotate 90 degrees, so that the lock head 16 is against the boss 11, as shown in Figure 6(d), lift the handle 7 upward The battery body 1 is removed from the cabin of the new energy vehicle, and at the same time, the top rod 13 moves downwards under the action of the spring 14, the upper end of the top rod leaves the contact switch 15; after removal, the handle 7 is pressed down again, so that the top rod 13 The upper end part is again in contact with the contact switch 15 and triggered. At this time, the motor drives the lock shaft 12 to rotate 90 degrees or rotate 90 degrees again, so that the lock head 16 matches the socket 10, and the lock head 16 can be easily taken out of the lock cavity 8.

When the connecting part 6 is provided with a plurality of locking components, all the push rods 13 must be pressed back to contact the trigger switch 15 and trigger to rotate all the lock shafts 12; at the same time, the connecting part 6 is provided with an indicator light 9, when The indicator light 9 illuminates to indicate that all the push rods are compressed in place and trigger the corresponding trigger switch 15, and the lock shaft 12 has been rotated into place, that is, locked or disengaged in place, you can use the gripping equipment to lift the battery body 1 or lift the gripping equipment separately Leave the battery; the three states of lock in place, disengage in place, and rotation of the spin lock can be indicated by the three colors of the indicator light 9.

The operation principle of grasping and releasing the battery at the connection part of the mechanical grasping equipment is similar to that of the above-mentioned mobile-driven handheld grasping equipment. The control system of the mechanical grasping equipment can also be set to: before the rotation of the spin lock is completed, The connection cannot be lifted.

It is also possible to use hand-held hand-held grasping equipment that is manually pushed. The hand-held hand-held grasping equipment can unify the grip handle and the pushing member that rotates the rotary lock, that is, the grip handle can be rotated relative to the connection part, and the rotary lock can be rotated by rotating the grip handle. It is also provided with a mechanism to prevent the grip handle from rotating relative to the connecting portion during lifting.

The manual quick-change general-purpose power battery is installed laterally. When the hand-held grasping equipment is manually pushed, it will not trigger the rotation of the spin lock due to misoperation during operation, and the safety is better. When the hand-held grasping equipment and the rigidly-connected mechanical grasping equipment are used for lateral installation, the battery should be prevented from accidentally disengaging from the rotation of the spin lock caused by misoperation, or the spin lock should be controlled by other methods during lateral installation. action.

The locking head of the grasping equipment adopts a cone structure, which can play a guiding role, which facilitates the locking head to enter the locking cavity during grasping.

There is a positioning structure on the equipment connection part to prevent the connection part from moving or rotating relative to the battery after the equipment connection part is connected to the battery, resulting in that the lock cannot be smoothly removed from the battery lock cavity socket after the battery is grabbed. The positioning structure can be set It is located behind the lock head on the connecting part. When grasping, it enters the socket after the lock head. It is used for positioning the connecting part. It can also be set at other positions of the connecting part (the corresponding structure is provided on the battery grasping surface).

There are batteries with multiple interfaces and multiple installation directions. Locking cavities are provided on the corresponding surfaces. When there are single locking cavities on different surfaces and the size of the locking cavities is the same, or there are multiple locking cavities and the size of the locking cavities When they are the same and the relative position and size between the locking cavities are the same, they can be grasped by the same connecting part; the locking cavities on different faces are different in size or the locking cavities are the same size and there are multiple locking cavities but the locking cavities are opposite If the size of the position is different, it can be grasped by the connecting part of different sizes, or the connecting part is designed to be adjustable.

A vehicle using the power battery includes a vehicle body provided with a quick-change interface corresponding to the battery body 1.

The battery compartment can be installed in various positions on the vehicle to install the manual quick-change general power battery: the battery compartment 20 can be directly installed on the frame 21 of the vehicle body, or a dedicated battery rack on the frame 21, or can be installed on the The structure of other power batteries on the car body. Due to the limited space in the vehicle, the battery compartment door 19 may use a folding door to prevent the battery compartment door from being blocked by other components on the vehicle when opening and closing.

As shown in the embodiments shown in FIGS. 8 and 9, a battery compartment for installing the battery body 1 is provided in front of the seat in the vehicle body, and the battery compartment door 19 adopts a double folding door. A battery compartment 20 is provided on the frame 21 of the vehicle body for installing a manual quick-change universal power battery, and a corresponding quick-change interface is provided at the bottom of the battery compartment. The battery compartment 20 is provided under the front seat 22, most of which is located in the front The front lower position of the seat 22, between the front seat 22 and the rear seat 23, the battery compartment door 19 adopts the form of a multi-folding door, so that the compartment door can be fully opened in the vehicle body, which is convenient for the removal of the general power battery; FIG. 9( a) shows the positional relationship between the battery compartment and the car seat under normal conditions; as shown in Figure 9(b), when the power battery under the front seat 22 needs to be taken out, move the front seat 22 along the front seat slide rail 18 Slide back, first open the folding door at the front of the battery compartment door 19, and then open the folding door at the front with the folding door at the rear to remove the power battery under the front seat 22; Figure 9(c) shows When the power battery between the front seat 22 and the rear seat 23 needs to be taken out, slide the front seat 22 forward along the front seat rail 18 and open the folding door at the front end of the battery compartment door 19 Then, the front folding door and the rear folding door are opened together, so that the power battery between the front seat 22 and the rear seat 23 is taken out.

If the double folding door is not used in the embodiment, an integrated single door structure is adopted, and the door side will hit the front of the rear seat and be blocked when the battery compartment between the front seat 22 and the rear seat 23 is opened. When the double-folding door is adopted and the door is opened, the movement trajectory of the edge of the door changes without being blocked by the seat.

The small folding door at the front of the battery compartment door 19 is provided with a door lock. After the battery is installed, it can be locked on the body structure (including the interior floor) and can press the side of the rear large folding door (the other side can be turned through the rotating shaft) Is assembled on the body structure), and the opening of both battery compartment doors is set with an angle limit. The battery compartment door can be pressed against the manual quick-change universal power battery (the elastic structure can be provided in the battery compartment door to eliminate the effect of dimensional error during locking). The three battery compartment covers in Figure 8 are in different states: closed, front The small folding door is unlocked and opened, and the battery compartment door is fully opened.

If necessary, a multi-folding door can also be used, that is, the number of folding doors of the battery compartment door is more than two.

Claims

A manual quick-change universal power battery for new energy vehicles is characterized by comprising a battery body, the battery body is provided with a quick-change interface, the quick-change interface includes a main electrical interface, and the battery body is used in conjunction with New energy vehicles are connected, and any projection area of the battery body is less than 0.09 square meters, the thickness does not exceed 140mm, and the weight is less than 12Kg.
The artificial energy quick-change universal power battery for new energy vehicles according to claim 1, wherein a connection structure is provided on the battery body, and the connection structure is used in conjunction with gripping equipment.
The artificial energy quick-change universal power battery for a new energy vehicle according to claim 2, wherein the connection structure includes a locking cavity, and the inner wall of the locking cavity cavity is fixedly provided with a boss.
The artificial energy quick-change universal power battery for a new energy vehicle according to claim 2, wherein there are multiple connection structures.
A gripping device used in conjunction with a manual quick-change universal power battery for a new energy vehicle according to claim 3, characterized in that it includes a connecting part, and a locking component is movably provided in the connecting part, and the lock The lock assembly includes a spin lock, which can enter the battery lock chamber, and after entering, rotates by a certain angle, can abut the lock chamber boss to prevent the spin lock from being separated from the lock chamber.
The gripping equipment according to claim 5, wherein the gripping equipment includes a connecting portion, and a grip is provided on the connecting portion.
The gripping equipment according to claim 5, characterized in that, the locking assembly includes a locking shaft, a plunger, and a trigger switch, and the connecting portion is provided with a mounting hole and an adjusting hole, and the locking shaft rotates It is arranged in the installation hole, one end of the lock shaft extends out of the connection part and a lock head is fixedly arranged at the end, the ejector rod is axially and movably arranged in the adjustment hole, the One end of the ejector rod extends out of the connecting portion, a spring is provided in the middle of the ejector rod, one end of the spring is in contact with the ejector rod, the other end of the spring is in contact with the connecting portion, and the other end of the ejector rod is provided There is a limiter to prevent the ejection of the ejector rod, the trigger switch is fixedly arranged directly above the ejector rod, and the lock shaft is driven by the motor.
The grasping equipment according to claim 7, wherein the lock head is a cone structure.
A vehicle adopting the power battery according to claim 1, characterized by comprising a vehicle body provided with a quick-change interface matching the battery body.
The vehicle according to claim 9, wherein the battery compartment door for mounting the battery body is foldable.