TWM562195U - Battery locking and unlocking device - Google Patents

Abstract

This creation aims to solve the problems of the existing battery replacement devices, such as many components, complicated control, and large space. For this purpose, the battery-unlocking device of the present invention includes at least one motor; each of the motors is coupled with an unlocking set, the unlocking set includes a plurality of unlocking members; and the unlocking member is capable of the motor Driven in a manner that moves closer to or away from the power battery pack. Due to the reduced number of components, the present invention enables the entire unlocking device to be smaller, lighter, and occupy less space. Further, the present invention can prevent damage to the locking mechanism of the battery pack by excessive torque by providing a torque limiter on the output side of the unlocking member.

Description

Battery plus unlocking device

The present invention belongs to the technical field of power replacement, and particularly relates to a battery plus unlocking device.

With the drastic increase in car ownership, conventional fuel-, gas-, or hybrid-based vehicles, such as engine-based vehicles, inevitably have the problem of extreme energy supply pressure, and they also accompany the problem of exhaust pollution. In view of this, the large-scale promotion of electric vehicles is an important strategic choice to ensure the sustainable development of the automotive industry. At present, the development of electric vehicles is limited by battery technology, and battery capacity and charging time are unavoidable issues at this stage. The emergence of electric replacement technology has realized the rapid replenishment of electric vehicle energy by directly replacing the power battery, bringing dawn to the development of electric vehicles.

Replacing the battery can realize the rapid replenishment of electric vehicle energy, making electric vehicle replenishment energy as easy as refueling a fuel car. Many electric vehicles that use the battery replacement mode to replenish their energy. Many of them install power batteries on the chassis of the electric vehicle to isolate the power battery from the driver and occupants. The safety of passengers also reduces the center of gravity of electric vehicles and improves the handling performance of electric vehicles. Therefore, the chassis battery installation and replacement technology has become the development direction of battery replacement electric vehicle technology.

Because the power battery has the characteristics of large volume and heavy weight, in order to ensure the safety of the chassis battery, its installation method is generally designed as a screw rotation and tightening structure, and multiple locking points are provided. When battery replacement is performed, the manual method is labor-intensive, long, and the torque is not easy to control. Therefore, automatic equipment is often used for replacement. However, the existing battery replacement devices mostly adopt a method of setting a motor at each locking point to perform unlocking, and because each set of motors must also be equipped with a reducer and driver to complete the unlocking action, the current battery The replacement device uses many components, complicated control, large volume, heavy weight and large space, and cannot meet the demand for power exchange in a small space.

Therefore, a new device is needed in the art to solve the above problems.

In order to solve the above-mentioned problems in the prior art, that is, to solve the problems that the existing battery replacement device has many components, complicated control, and large space occupation, the present invention proposes a battery plus unlocking device. The battery unlocking device includes: at least one motor; each of the motors is connected with a unlocking group, and the unlocking group includes a plurality of unlocking members; and the unlocking member can be driven by the motor to Move in a manner close to or away from the power battery pack.

In a preferred embodiment of the battery unlocking device described above, the plurality of unlocking members connected to each of the motors are connected in series with each other, and the power output end of the motor is connected to the unlocking member at the end.

In a preferred embodiment of the battery unlocking device described above, the plurality of unlocking members are connected through a middleware, and the middleware can enable the plurality of unlocking members to be in fixed positions, respectively.

In a preferred embodiment of the battery unlocking device, the intermediate piece is a universal joint or a transmission shaft.

In a preferred embodiment of the battery plus-unlock device, the plus-unlock member includes a reduction gear, a torque limiter, and a plus-unlock tool head, wherein the torque limiter is provided on the reducer, and the plus-unlock tool The head is connected to the torque limiter; under the drive of the motor, the reduction gear drives the lock and unlock tool head to rotate through the torque limiter, and the torque value used as the torque limiter exceeds When the value is preset, the unlocking tool head is disengaged from the torque limiter.

In a preferred embodiment of the battery plus and unlock device, the reduction gear is a worm gear reduction device, and the worm of the worm gear reduction device has a double-sided protruding shaft.

In a preferred embodiment of the battery plus and unlock device, the worm wheel of the worm gear reduction device has a single-sided output shaft, and the torque limiter is fixed to the single-sided output shaft.

In a preferred embodiment of the above battery plus unlocking device, the battery plus unlocking device further includes a programmable logic controller capable of rotating at least one of the motors in a preset program.

In a preferred embodiment of the battery unlocking device, the programmable logic controller can further receive a signal from the torque limiter, and when the programmable logic controller receives a locking signal output from the torque limiter When the programmable logic controller controls the motor to stop, and when the programmable logic controller does not receive the locking signal output by the torque limiter, when the motor is rotating forward or reverse When the rotation time reaches a preset value, the programmable logic controller controls the motor to stop.

In the above-mentioned embodiment of the battery locking and unlocking device, the motor is a servo motor.

In the technical content of this creation, a motor is used to drive a group of locking and unlocking groups to achieve the locking or unlocking of the locking mechanism of the battery pack at multiple positions by one motor, and the control is simple, requiring only a single The chip or PLC can control the motor. This structure reduces the number of components, making the entire unlocking device smaller, lighter, and occupying less space. In addition, in this creation, a torque limiter is provided on the output side of the unlocking member to prevent damage to the locking mechanism of the battery pack caused by excessive torque.

Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings. Those with ordinary knowledge in the technical field to which this creation belongs should understand that these embodiments are only used to explain the technical principles of this creation, and are not intended to limit the scope of protection of this creation. For example, although the various components in the drawings are drawn at a specific scale, this proportional relationship is only exemplary, and those with ordinary knowledge in the technical field to which this creation belongs can adjust it as necessary to suit specific applications.

It should be noted that in the description of this creation, the terms "center", "upper", "lower", "left", "right", "vertical", "level", "inside", "outside", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this creation and simplified description, and does not indicate or imply that the device or element referred to must have a specific orientation, a specific orientation Construction and operation cannot be understood as a limitation on this creation. In addition, the terms "first," "second," and "third" are used for descriptive purposes only, and should not be construed to indicate or imply relative importance.

In addition, it should be noted that in the description of this creation, unless otherwise specified and limited, the terms "installation", "connected", and "connected" should be understood in a broad sense. For example, they can be fixed connections or It is a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two components. For those with ordinary knowledge in the technical field to which this creation belongs, the specific meaning of the above terms in this creation can be understood according to the specific circumstances.

As shown in FIG. 1, the battery locking and unlocking device of the present invention includes at least one motor 1, and each of the motors 1 is connected to a locking and unlocking group, the locking and unlocking group includes a plurality of locking and unlocking members 2, and the locking and unlocking member 2 can be Driven by 1 to move near or away from the power battery pack. The structure of each part in this embodiment will be described in detail below with reference to FIG. 2.

As shown in FIG. 2, the output end of the motor 1 is connected to the battery plus unlocking member 2 through a coupling 3. The battery plus unlocking member 2 mainly includes a reduction gear 21, a torque limiter 22, and an unlocking tool head 23. Among them, the speed reduction device 21 is provided with a torque limiter 22, and the torque limiter 22 is connected to the unlocking tool head 23. Under the drive of the motor 1, the speed reduction device 21 drives the lock and unlock tool head 23 to rotate through the torque limiter 22, and therefore The locking and unlocking tool head 23 is enabled to lock the power battery, such as mounting to a battery case, or unlock, such as removing from the battery case. Further, when the torque value for the torque limiter 22 exceeds a preset value, the lock-and-unlock tool head 23 is disengaged from the torque limiter 22, for example, under the restriction of the locking mechanism of the battery pack, the lock-and-unlock tool head 23 stops rotating, and The torque limiter 22 starts idling.

In a possible implementation of the present invention, the reduction gear 21 is a worm gear reduction device, the worm of the worm gear reduction device has a double-sided protruding shaft, and the worm gear of the worm gear reduction device has a single-sided output shaft. Among them, the output end of the motor 1 is connected to the extension shaft on one side of the worm through a coupling 3, and the extension shaft on the other side is connected to other worm gear reduction devices through an intermediate piece (such as a transmission shaft or a universal joint). . The torque limiter 22 is fixed on a single-sided output shaft, and the unlocking tool head 23 can be detachably mounted on the torque limiter 22. When the power battery pack needs to be locked or unlocked, the locking and unlocking tool head 23 is aligned with the locking mechanism of the power battery pack. Under the drive of the motor 1, the worm drives the worm gear to rotate, and the worm gear drives the torque limiter 22 to rotate. The limiter 22 drives the lock and unlock tool head 23 to rotate, so that the lock and unlock tool head 23 can lock or unlock the locking mechanism of the power battery pack.

Referring back to FIG. 1, the motor 1 is connected to a lock and unlock group, and the lock and unlock group includes a plurality of lock and unlock members 2. The output end of the motor 1 is connected to the first lock and unlock member 2 at the end, and the first lock and unlock The member 2 is connected to the next unlocking member 2 through the transmission shaft 4, and the next unlocking member 2 is connected to the next unlocking member 2 through the universal joint 5, so that a plurality of unlocking members 2 are connected in series in order. . With the setting of the transmission shaft and the coupling, the multiple unlocking members 2 can be locked or unlocked at a set position. In a possible implementation of the present invention, the transmission shaft 4 is connected to a protruding shaft of one side of the worm of the worm gear reduction device through a coupling, and a person having ordinary knowledge in the technical field to which this creation belongs may be based on the actual application scenario The specific positions of the plurality of locking and unlocking members 2 are selected by using the transmission shaft 4 or the universal joint 5 to connect the locking and unlocking members 2 in series.

In addition, the battery unlocking device of this creation also includes a PLC (Programmable Logic Controller). The PLC can make at least one motor 1 rotate in a preset program, and the PLC can also receive the torque limiter 22 signal. For example, although FIG. 2 only illustrates a case where one motor 1 is connected to a group of unlocking groups consisting of multiple unlocking members 2 connected in series, in some application scenarios, such as for multiple battery packs When the locking mechanism (10 or more) is unlocked at the same time, the battery unlocking device may further include multiple motors 1, each motor 1 is connected to a group of unlocking groups, and each unlocking group includes an appropriate number of The locking and unlocking member 2 is controlled by the PLC to realize the battery locking and unlocking device to simultaneously lock or unlock the locking mechanism of the power battery pack.

In one embodiment of the present creation, logic such as the time when the motor 1 rotates forward or reverse can be set by the PLC. During the locking operation, the PLC is used to control the forward rotation of the motor 1, and the locking mechanism of the power battery pack is locked by the forward torque transmitted to the unlocking tool head 23. Specifically, when the forward torque transmitted to the unlocking tool head 23 exceeds a preset value, the unlocking tool head 23 is released from the torque limiter 22 under the restriction of the locking mechanism of the battery pack. At this time, the torque limiter 22 starts Slip (idle), and then output the lock signal to the PLC. When all the torque limiters 22 output lock signals (that is, the torque limiter 22 starts to slip), the PLC controls the motor 1 to stop. When there is a torque limiter 22 that does not output a lock signal, if the forward rotation time of the motor 1 reaches the set time, the PLC controls the motor 1 to stop and issue an alarm signal, which can be processed by the field personnel in other ways. It is easy for a person with ordinary knowledge in the technical field to which this creation belongs to understand that when the time of the normal rotation of the motor 1 reaches the set time, the lock signal from a torque limiter 22 has not been received, indicating that the torque limiter 22 is Continue to drive the locking and unlocking tool head 23 to rotate. One possible situation is that the locking and unlocking tool head 23 is disengaged from the locking mechanism of the battery pack. At this time, the locking can be performed manually.

When the unlocking operation is performed, the PLC is used to control the motor 1 to reverse rotation, and the locking mechanism of the power battery pack is unlocked by the reverse torque transmitted to the unlocking tool head 23. Specifically, when the reversing time of the motor 1 reaches the set time, the PLC controls the motor 1 to stop, all the unlocking tool heads 23 stop rotating, and the unlocking is completed. In the unlocking process, when the torque of any torque limiter 22 exceeds a preset value, the torque limiter 22 starts to slip (idle), and then outputs a lock signal. The PLC controls the motor 1 to stop and issue an alarm signal. Use other methods for processing. It is easy for those with ordinary knowledge in the technical field to which this creation belongs to understand that during the unlocking process, when the torque of any torque limiter 22 exceeds a preset value, the locking mechanism of the power battery pack may become stuck. As a result, the locking and unlocking tool head 23 is disengaged from the torque limiter 22 under the locking mechanism, and the torque limiter 22 starts to idle, in other words, the unlocking fails this time. At this time, the PLC controls the motor 1 to stop and issue an alarm signal, which can be unlocked manually by the field personnel.

It should also be noted that the battery plus unlocking device of this creation can be applied to scenarios where power battery packs need to be unlocked, such as power battery packs for electric vehicle chassis, battery racks that store power batteries in replacement stations, or some production workshops, etc. Scene. In addition, when only one motor 1 is connected to a group of locking and unlocking groups, a single chip can be used to control the motor 1 instead of the PLC. In addition, the speed reduction device 21 may also be replaced by another type of speed reducer, as long as the rotation of the motor 1 can be transmitted to the unlocking tool head 23. In addition, in this embodiment, the motor is preferably a servo motor.

As another implementation of the present invention, the output shaft of the motor 1 can also be matched with a connecting member. The connecting member has multiple output shafts, and each output shaft can be connected to an unlocking group. In this way, it is equivalent to a motor. 1 Through the connection component is converted into a structural form with multiple output shafts, thereby achieving a situation in which a plurality of parallel locking and unlocking groups can be connected to a motor 1, wherein the connection component can be any component that can meet the requirements, such as a gear And connecting rod combination structure.

So far, the technical content of this creation has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those with ordinary knowledge in the technical field to which this creation belongs to understand that the scope of protection of this creation is obviously not limited to these specific implementations. . Without departing from the principle of this creation, those with ordinary knowledge in the technical field to which this creation belongs can make equivalent changes or replacements to related technical features, and the technical content after these changes or replacements will fall into the protection scope of this creation. within.

1‧‧‧motor
2‧‧‧ Battery plus unlocking member
21‧‧‧ Reducer
22‧‧‧Torque Limiter
23‧‧‧ plus unlock tool head
3‧‧‧Coupling
4‧‧‧ drive shaft
5‧‧‧ universal joint

[Fig. 1] is a schematic structural diagram of a battery plus unlocking device connected to the plus unlocking group of the present invention. [Fig. 2] It is a schematic structural diagram of a single battery unlocking device connected to the battery unlocking device of the present invention.

Claims (10)

A battery locking and unlocking device for loading and unloading a power battery pack, the battery locking and unlocking device comprising: at least one motor; each said motor is connected with a lock and unlock group, and the lock and unlock group includes a plurality of lock and unlock members; and, The locking and unlocking member can be moved close to or away from the power battery pack under the driving of the motor. The battery unlocking device according to claim 1, the plurality of unlocking members connected to each of the motors are connected in series with each other, and the power output end of the motor is connected to the unlocking member at the end. According to the battery unlocking device described in claim 2, the plurality of unlocking members are connected through a middleware, and the middleware can enable the plurality of unlocking members to be in fixed positions respectively. The battery plus unlocking device according to claim 3, wherein the middleware is a universal joint or a transmission shaft. The battery unlocking device according to any one of claims 1 to 4, wherein the unlocking member includes a reduction gear, a torque limiter, and an unlocking tool head, wherein the torque limiter is provided on the reduction gear The locking and unlocking tool head is connected to the torque limiter; under the drive of the motor, the reduction gear drives the locking and unlocking tool head to rotate through the torque limiter, and is used as the torque limiter When the torque value of the device exceeds a preset value, the locking and unlocking tool head is disengaged from the torque limiter. According to the battery adding and unlocking device of claim 5, the reduction device is a worm gear reduction device, and the worm of the worm gear reduction device has a double-sided protruding shaft. According to the battery unlocking device described in claim 6, the worm gear of the worm gear reduction device has a single-sided output shaft, and the torque limiter is fixed to the single-sided output shaft. The battery plus unlocking device according to claim 1, wherein the battery plus unlocking device further comprises a programmable logic controller capable of rotating at least one of the motors in a preset program. According to the battery unlocking device described in claim 8, the programmable logic controller can further receive a signal of the torque limiter, and when the programmable logic controller receives a locking signal output by the torque limiter When the programmable logic controller controls the motor to stop, and when the programmable logic controller does not receive the locking signal output by the torque limiter, when the motor is running forward or reverse When the time reaches a preset value, the programmable logic controller controls the motor to stop. The battery plus unlocking device according to claim 1, wherein the motor is a servo motor.