CN113415142A

CN113415142A - Locking device, bracket assembly, electric automobile and locking method of battery box

Info

Publication number: CN113415142A
Application number: CN202010188298.9A
Authority: CN
Inventors: 张建平; 陈新雨; 兰志波; 仇丹梁
Original assignee: Aulton New Energy Automotive Technology Co Ltd
Current assignee: Aulton New Energy Automotive Technology Co Ltd
Priority date: 2020-03-17
Filing date: 2020-03-17
Publication date: 2021-09-21

Abstract

The invention discloses a locking device, a bracket assembly, an electric automobile and a locking method of a battery box. According to the locking device, the battery box and the locking mechanism of the locking device are arranged on the bracket, and the locking mechanism is rotated, so that the battery box is locked or unlocked by the locking mechanism, and the battery box is convenient to fix or replace. The locking device is beneficial to improving the stability of the battery box and the reliability of the electrical connection of the battery box.

Description

Locking device, bracket assembly, electric automobile and locking method of battery box

Technical Field

The invention relates to a locking device, a bracket assembly, an electric automobile and a locking method of a battery box.

Background

With social development and technological progress, electric vehicles are more and more popular with consumers, and as a power source of the electric vehicles, a battery box needs to be charged in time. Due to the requirements of endurance mileage and power, the electric quantity of a battery box required by an automobile is higher and higher, the requirement of using the automobile in partial scenes cannot be met by a traditional charging mode, the battery box needs to be replaced and placed on a charging frame for charging, and the automobile can be normally used in the charging time. The battery box (battery box assembly) consists of a battery box and a bracket, and the battery box is arranged on the bracket so as to realize the fixation, stability and reliability of the battery box. In the prior art, the battery box with a large size cannot be accurately locked, so that the battery box and the bracket are not reliably matched or the battery replacement efficiency is influenced.

Disclosure of Invention

The invention aims to overcome the defect that the matching of a battery box and a bracket is unreliable in the prior art, and provides a locking device, a bracket assembly, an electric automobile and a locking method of the battery box.

The invention solves the technical problems through the following technical scheme:

the locking device comprises a locking mechanism, wherein the locking mechanism is rotatably connected onto a bracket and is rotated to lock or unlock a battery box on the bracket.

In this scheme, through adopting above structure, set up battery box and locking means's locking mechanism on the bracket to through rotating locking mechanism, thereby utilize locking mechanism to carry out locking or unblock to the battery box, and then be convenient for realize fixing or changing the battery box. The locking device of this scheme is favorable to improving the steadiness of battery box, is favorable to improving the reliability of the electricity of battery box to be connected.

Preferably, the locking mechanism applies a pushing force to the battery box by rotating so as to bring the battery box into a locking position on the bracket.

In this scheme, through adopting above structure, utilize the thrust that locking mechanism applyed to the battery box, make the more firm locking of battery box in the locking position, be favorable to improving the steadiness of battery box, be favorable to improving the reliability of the electricity connection of battery box.

Preferably, the locking mechanism comprises a connecting piece and a blocking part, one end of the connecting piece is rotatably connected to the bracket, the blocking part is connected to the other end of the connecting piece, and the blocking part is used for applying pushing force to the battery box to enable the battery box to be locked on the bracket.

In this scheme, through adopting above structure, will utilize connecting piece and barrier member, be favorable to simplifying locking mechanism's design form, be favorable to improving locking mechanism's reliability.

Preferably, the locking device further comprises a rotating shaft, and the locking mechanism is connected with the bracket through the rotating shaft.

In this scheme, through adopting above structure, utilize the rotation axis to be connected to the bracket with locking mechanism, be favorable to improving locking mechanism pivoted reliability and rotation efficiency.

Preferably, one end of the locking mechanism is rotatably connected to the bracket, the other end of the locking mechanism is provided with an abutting surface, and the locking mechanism applies thrust to the battery box through the abutting surface.

In this scheme, through adopting above structure, the utilization is supported and is leaned on and exert thrust in the face of the battery box, is favorable to improving the area of contact of locking mechanism and battery box, is favorable to improving the reliability that locking mechanism supported and leans on the battery box.

Preferably, the other end of the locking mechanism is further provided with a guide surface, one end of the guide surface is connected with the abutting surface, the other end of the guide surface extends towards the end of the locking mechanism, and the guide surface is used for guiding the abutting surface to abut against the battery box in the rotation process of the locking mechanism.

In this scheme, through adopting above structure, set up the spigot surface through the tip at locking mechanism for the spigot surface can touch the battery box earlier, and at locking mechanism pivoted in-process, the spigot surface compresses tightly the battery box gradually, and the last utilization is supported and is leaned on a locking battery box. This scheme utilization spigot surface is favorable to steady pushing away the battery box to the locking position, and then realizes the locking of battery box reliably.

Preferably, the guide surface is an arc surface or an inclined surface, and the abutting surface is a plane.

In this scheme, through adopting above structure, set up the spigot surface into cambered surface or inclined plane, be favorable to more steady pushing away the battery box to the locking position, and then realize the locking of battery box reliably.

Preferably, the locking mechanism is provided with at least one first engaging portion on one side abutting against the battery box, and the first engaging portion is used for engaging and fixing the battery box.

In this scheme, through adopting above structure, utilize the fixed battery box of first block portion, be favorable to further improving the steadiness of battery box, be favorable to further improving the reliability of the electricity connection of battery box.

Preferably, the first clamping part is a clamping hook, and the clamping hook is used for clamping a clamping groove of the battery box; or the first clamping part is a groove and used for clamping a clamping hook of the battery box.

In this scheme, through adopting above structure, utilize trip and draw-in groove mutual card and, be favorable to simplifying the design and the reliability of first block portion.

A carrier assembly comprising a locking arrangement as described above.

In this scheme, through adopting above structure, set up locking means in the bracket assembly, be favorable to improving the steadiness of battery box on the bracket, be favorable to improving the reliability of the electricity connection of battery box.

Preferably, the bracket assembly further comprises a limiting mechanism, and when the battery box is in a locked state, the limiting mechanism is used for fixing the movement of the locking mechanism relative to the bracket so as to limit the movement of the battery box on the bracket.

In this scheme, through adopting above structure, utilize stop gear fixed locking mechanism, be favorable to avoiding locking mechanism to move by accident, be favorable to avoiding battery box to move by accident, be favorable to improving locking mechanism's steadiness, be favorable to improving the reliability of bracket assembly.

Preferably, the limiting mechanism comprises a lock tongue, a lock groove is formed in the locking mechanism, and the lock tongue can extend into the lock groove or retract outside the lock groove.

In this scheme, through adopting above structure, utilize spring bolt and locked groove to realize locking mechanism's fixed, be favorable to simplifying stop gear's design form, be favorable to improving stop gear's reliability.

Preferably, the locking device is movably connected to the bottom of the bracket.

In this scheme, through adopting above structure, with the locking means design in the bottom of bracket, locking mechanism can be through rotating in order to fix the battery box from bottom to top, is favorable to simplifying locking means's design form, is favorable to improving locking means's reliability.

Preferably, the bracket assembly further comprises a limiting block, the limiting block is arranged on a moving path of the locking mechanism in the bracket, and the limiting block is used for limiting a moving limit position of the locking mechanism in a locking or unlocking process.

In the scheme, by adopting the structure, the limit position of the locking mechanism is limited by the limit block, so that the rotation angle of the locking mechanism is prevented from being too large, the locking mechanism is prevented from being too large in force against the battery box, and the reliability of the locking battery box is improved; the distance between the locking mechanism and the battery box is avoided being too large, the stroke of the locking mechanism for locking the battery box is shortened, and the efficiency of the locking mechanism for locking the battery box is improved.

Preferably, the carriage assembly further comprises a drive mechanism for driving movement of the locking mechanism.

In this scheme, through adopting above structure, utilize actuating mechanism to realize locking mechanism's removal, be favorable to simplifying the process of battery box locking, be favorable to improving the efficiency of battery box locking.

Preferably, the bracket assembly further comprises a first sensor for detecting the specific position of the battery box, and an output end of the first sensor is electrically connected to the driving mechanism.

In this scheme, through adopting above structure, utilize first sensor to be used for detecting the concrete position of battery box to with the output electricity of first sensor connect in actuating mechanism is favorable to improving the precision and the reliability of battery box installation, also is favorable to improving the automation level of battery box installation.

Preferably, the carriage assembly further includes a second sensor for detecting a locked state of the locking mechanism.

In this scheme, through adopting above structure, utilize the second sensor to detect locking mechanism's state, be favorable to improving the reliability of battery box locking.

Preferably, the bracket assembly further comprises a driving member, one end of the driving member is connected to the locking mechanism, and the other end of the driving member is located on a moving path of the battery box on the bracket; the battery box is installed in the bracket from the outside of the bracket, and the battery box can extrude the driving piece and drive the locking mechanism to move so as to realize the locking of the battery box on the bracket.

In this scheme, through adopting above structure, utilize the driving piece to turn into locking mechanism's removal with the motion of battery box, when realizing the battery box installation, also realized locking mechanism to the locking of battery box, be favorable to simplifying the process of battery box locking, be favorable to improving the efficiency of battery box installation.

Preferably, the driving member is connected to the rotating shaft of the locking mechanism, and is configured to drive the rotating shaft to rotate so as to drive the locking mechanism to rotate.

In this scheme, through adopting above structure, utilize the driving piece to drive the axis of rotation to drive locking mechanism and rotate, and then realize the locking of battery box, be favorable to simplifying the process of battery box locking, be favorable to improving the efficiency of battery box installation.

An electric vehicle comprises the bracket assembly.

In this scheme, through adopting above structure, with the bracket assembly setting in electric automobile, be favorable to improving electric automobile's battery box's security and reliability, and then be favorable to improving electric automobile's security and reliability.

A locking method of a battery box comprises the steps of placing the battery box on a bracket; rotating the locking mechanism of claim 1 to close the passage of the battery compartment into and out of the bracket.

In this scheme, through adopting above structure, through the locking mechanism who rotates locking means, realize the locking or the unblock of battery box on the bracket, be favorable to improving the steadiness of battery box, be favorable to improving the reliability of the electricity connection of battery box.

On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.

The positive progress effects of the invention are as follows:

according to the locking device, the battery box and the locking mechanism of the locking device are arranged on the bracket, and the locking mechanism is rotated, so that the battery box is locked or unlocked by the locking mechanism, and the battery box is convenient to fix or replace. The locking device is beneficial to improving the stability of the battery box and the reliability of the electrical connection of the battery box.

Drawings

Fig. 1 is a schematic structural diagram of a locking mechanism of a locking device according to a preferred embodiment of the invention.

Fig. 2 is another schematic structural diagram of the locking mechanism of the locking device according to the preferred embodiment of the invention.

FIG. 3 is a schematic structural view of a bracket assembly according to a preferred embodiment of the present invention, wherein the locking device is in a locked state.

FIG. 4 is another structural schematic view of the bracket assembly in accordance with the preferred embodiment of the present invention, wherein the locking device is in an unlocked state.

FIG. 5 is a partial schematic structural diagram of an electric vehicle according to a preferred embodiment of the invention

Description of reference numerals:

locking device 100

Locking mechanism 10

Connecting piece 11

Barrier component 12

Rotating shaft 13

Abutment surface 14

Guide surface 15

First engaging portion 16

Stopper 21

Bracket 31

Battery box 32

Chassis 33

Detailed Description

The present invention will be more clearly and completely described below by way of examples in conjunction with the accompanying drawings, but the present invention is not limited thereto.

As shown in fig. 1-2, the present embodiment is a locking mechanism 10 of a locking device 100. Fig. 3 and 4 are each a bracket assembly including the locking device 100 of fig. 1 and 2. For ease of illustration, a battery box 32 is also shown. The locking device 100 in fig. 3 is in a locked state, and the locking device 100 in fig. 4 is in an unlocked state. The locking device 100 is provided on the bracket 31, the locking mechanism 10 is rotatably connected to the bracket 31, and the locking mechanism 10 locks the battery case 32. Fig. 5 is a part of an electric vehicle, and only a bracket assembly, a battery box 32 and a chassis 33 of the electric vehicle are shown for convenience of explanation. The chassis 33 includes longitudinal beams on which the bracket assembly is disposed.

As shown in fig. 1-2, the present embodiment is a locking device 100, and the locking device 100 includes a locking mechanism 10, the locking mechanism 10 is rotatably connected to a bracket 31, and by rotating the locking mechanism 10, the battery box 32 is locked or unlocked on the bracket 31. The locking mechanism in this embodiment is rotatably connected to the bracket 31, and after the battery box 32 is placed at a predetermined position on the bracket 31, the locking mechanism 10 is driven to rotate to the position shown in fig. 3, so as to close the passage of the battery box 32 into and out of the bracket 31, thereby locking the battery box 32 relative to the bracket 31, and when the battery box 32 needs to be removed, the locking mechanism 10 is driven to rotate to the position shown in fig. 4, so as to open the passage of the battery box 32 into and out of the bracket 31, thereby unlocking the battery box 32 relative to the bracket 31. In the present embodiment, the battery box 32 and the locking mechanism 10 of the locking device 100 are disposed on the bracket 31, and the locking mechanism 10 is rotated, so that the battery box 32 is locked or unlocked by the locking mechanism 10, thereby facilitating the fixing or replacement of the battery box 32. The locking device 100 of the present embodiment is advantageous for improving the stability of the battery box 32 and for improving the reliability of the electrical connection of the battery box 32.

As shown in fig. 3 and 4, the locking device 100 of the present embodiment is disposed at the bottom of the bracket 31, but in other embodiments, the locking device 100 may be disposed at a side surface or an upper portion of the bracket 31, and the battery box 32 may be locked or unlocked on the bracket 31 by rotating the locking mechanism 10.

In a preferred embodiment, the locking mechanism 10 applies a pushing force to the battery box 32 by rotating, so that the battery box 32 is brought into a locking position on the bracket 31. In the embodiment, the thrust applied to the battery box 32 by the locking mechanism 10 is utilized to lock the battery box 32 at the locking position more stably, which is beneficial to improving the stability of the battery box 32 and the reliability of the electrical connection of the battery box 32.

In other embodiments, after the battery box 32 is directly placed at the locking position on the bracket 31, the locking mechanism 10 is rotated to the position shown in fig. 3, so as to close the passage of the battery box 32 into and out of the bracket 31, thereby locking the battery box 32 relative to the bracket 31. No pushing force is applied to the battery case during rotation of the lock mechanism 10. When it is desired to remove the battery case 32, the locking mechanism 10 is driven to rotate to the position shown in fig. 4. The battery box 32 is opened to enter and exit the bracket 31, and the battery box 32 is unlocked relative to the bracket 31.

In a specific embodiment, the locking mechanism 10 includes a link 11 and a blocking member 12, one end of the link 11 is rotatably connected to the bracket 31, the blocking member 12 is connected to the other end of the link 11, and the blocking member 12 is used for applying a pushing force to the battery box 32 to lock the battery box to the bracket 31. In this embodiment, the connecting member 11 and the blocking member 12 may be integrally formed, or may be formed by two separate members, and in this embodiment, the connecting member 11 and the blocking member 12 are used, which is advantageous for simplifying the design of the locking mechanism 10 and improving the reliability of the locking mechanism 10.

As shown in fig. 3 and 4, the connecting member 11 of the present embodiment is a swing lever, and the blocking member 12 is a flap connected to an end of the swing lever, the flap being configured to abut against a side surface of the battery box 32. The swing rod is rotated to drive the turning plate, the upper part of the turning plate firstly contacts the battery box 32, the thrust of the turning plate to the battery box 32 is gradually increased along with the continuous rotation of the swing rod, so that the battery box 32 is pushed to move inwards, when the swing rod rotates to the limit position, the thrust of the turning plate to the battery box 32 is also maximized, and the battery box 32 is tightly fixed at the locking position. Of course, in other embodiments, the connecting member 11 and the blocking member 12 may be designed in other forms. Specifically, as shown in fig. 3, in the present embodiment, a plurality of swing levers are arranged in parallel, the flap is provided at one end of the swing lever, and the other end of the swing lever is provided with a shaft hole, and the locking mechanism is fixed to the bracket 31 by inserting the rotating shaft 13 into the shaft hole and the shaft hole in the bracket 31. The flap of this embodiment is perpendicular to the sway bar. The flap extends in a direction towards the battery compartment 32. The axle hole of the bracket 31 is arranged at one end of the bracket 31 close to the chassis 33.

In other embodiments, the number of the connecting members 11 may be two, two connecting members 11 are respectively disposed at both sides of the bracket 31, and two connecting members 11 are respectively connected to both ends of the blocking member 12. As shown in fig. 2, the flap may also have an angle a with respect to the swing lever, and the preferred angle a ranges from: 60 to 120 and more preferably the included angle a is 90.

In order to improve the rotation efficiency of the locking mechanism 10, the locking device 100 further includes a rotating shaft 13, and the locking mechanism 10 is connected to the bracket 31 through the rotating shaft 13. The present embodiment connects the locking mechanism 10 to the bracket 31 by using the rotating shaft 13, which is beneficial to improving the reliability and efficiency of rotation of the locking mechanism 10. As shown in fig. 2, the link 11 is connected to the bracket 31 through the rotation shaft 13. The connecting member 11 rotates about the rotating shaft 13, thereby rotating the blocking member 12, and abutting against the battery case 32.

In order to improve the reliability of fixing the battery box 32, one end of the locking mechanism 10 is rotatably connected to the bracket 31, the other end of the locking mechanism 10 is provided with an abutting surface 14, and the locking mechanism 10 applies a pushing force to the battery box 32 through the abutting surface 14. As shown in fig. 3 and 4, in the present embodiment, the urging force is applied to the battery case 32 by the abutting surface 14, which is advantageous for increasing the contact area between the lock mechanism 10 and the battery case 32 and for improving the reliability of the lock mechanism 10 abutting against the battery case 32.

In a preferred embodiment, the other end of the locking mechanism 10 is further provided with a guide surface 15, one end of the guide surface 15 is connected to the abutting surface 14, the other end of the guide surface 15 extends towards the end of the locking mechanism 10, and the guide surface 15 is used for guiding the abutting surface 14 to abut against the battery box 32 during the rotation of the locking mechanism 10. As shown in fig. 3 and 4, in the present embodiment, the guide surface 15 is provided at the end of the locking mechanism 10, so that the guide surface 15 can contact the battery box 32 first, the guide surface 15 gradually presses the battery box 32 during the rotation of the locking mechanism 10, and finally the battery box 32 is locked by the contact surface. The present embodiment utilizes the guide surface 15 to facilitate smooth pushing of the battery box 32 to the locking position, thereby reliably achieving locking of the battery box 32. In this embodiment, the guide surface 15 is a slope and the abutment surface 14 is a flat surface. In other embodiments, the guide surface 15 may also be a curved surface. The embodiment sets the guide surface 15 as an arc surface or an inclined surface, which is beneficial to more stably pushing the battery box 32 to the locking position, thereby reliably realizing the locking of the battery box 32.

In a preferred embodiment, the locking mechanism 10 further has at least one first engaging portion 16 at a side abutting against the battery box 32, and the first engaging portion 16 is used for engaging and fixing the battery box 32. In the present embodiment, the first engaging portion 16 is used to fix the battery box 32, which is advantageous for further improving the stability of the battery box 32 and the reliability of the electrical connection of the battery box 32. In this embodiment, after the battery box 32 is fixed at the locking position by using the abutting surface 14 of the locking mechanism 10, in order to avoid that the abutting surface 14 is displaced relative to the battery box 32 due to shaking during the driving of the vehicle, and further the locking is disabled, the first engaging portion 16 is provided between the battery box 32 and the locking mechanism 10, and further the relative displacement between the abutting surface 14 and the battery box 32 is avoided, and the stability of the locking mechanism 10 is improved.

In a specific embodiment, the first engaging portion 16 is a hook, and the hook is used for engaging with a slot of the battery box 32. In other embodiments, the first engaging portion 16 may be a groove for engaging with a hook of the battery box 32. In the present embodiment, the hook and the slot are engaged with each other, which is beneficial to simplify the design form and reliability of the first engaging portion 16. As shown in fig. 3 and 4, in the embodiment, the hook is disposed at the end of the blocking component 12, and correspondingly, the side surface of the battery box 32 is provided with a slot, when the battery box 32 is located at the locking position, the hook can hold the slot, thereby improving the stability of the battery box 32. In other embodiments, the structure of the snap may be a wedge-shaped block, or a structure having a surface with a concave-convex shape.

As shown in fig. 3, the present embodiment is a bracket assembly, which includes, for example, a locking device 100. The locking device 100 is disposed in the bracket assembly, which is beneficial to improving the stability of the battery box 32 on the bracket 31 and the reliability of the electrical connection of the battery box 32.

In a preferred embodiment, the bracket assembly further comprises a limiting mechanism for fixing the locking mechanism 10 to prevent the locking mechanism 10 from moving relative to the bracket 31 when the battery box 32 is in the locked state, so as to limit the movement of the battery box 32 on the bracket 31. The embodiment utilizes the fixed locking mechanism 10 of stop gear, is favorable to avoiding locking mechanism 10 to remove by accident, is favorable to avoiding battery box 32 to remove by accident, is favorable to improving locking mechanism 10's steadiness, is favorable to improving the reliability of bracket assembly.

As a specific embodiment, the limiting mechanism includes a lock tongue, and the lock mechanism 10 has a lock groove, and the lock tongue can extend into the lock groove or retract out of the lock groove. The locking mechanism 10 is fixed by the aid of the lock tongue and the lock groove, the design form of the limiting mechanism is simplified, and the reliability of the limiting mechanism is improved.

In order to improve the reliability of the bracket assembly, as shown in fig. 3 and 4, a locking device 100 is movably connected to the bottom of the bracket 31. In the present embodiment, the locking device 100 is designed at the bottom of the bracket 31, and the locking mechanism 10 can be rotated from bottom to top to fix the battery box 32, which is beneficial to simplifying the design of the locking device 100 and improving the reliability of the locking device 100. In other embodiments, the locking device 100 may be disposed on a side surface or an upper portion of the bracket 31, and by rotating the locking mechanism 10, the battery box 32 can be locked or unlocked on the bracket 31, thereby improving the reliability of the bracket assembly.

In a preferred embodiment, the bracket assembly further includes a limiting block 21, the limiting block 21 is disposed in the bracket 31 on a moving path of the locking mechanism 10, and the limiting block 21 is used for limiting a moving limit position of the locking mechanism 10 during locking or unlocking. In the embodiment, the limiting block 21 is used for limiting the limiting position of the locking mechanism 10, so that the locking mechanism 10 is prevented from rotating by too large an angle, the locking mechanism 10 is prevented from abutting against the battery box 32 by too large force, and the reliability of locking the battery box 32 is improved; the distance between the locking mechanism 10 and the battery box 32 is also prevented from being too large, the stroke of the locking mechanism 10 for locking the battery box 32 is also shortened, and the efficiency of the locking mechanism 10 for locking the battery box 32 is improved. As shown in fig. 3, the stopper 21 is a rectangular block, the stopper 21 is disposed on the bracket 31, the stopper 21 and the blocking member 12 are disposed on two sides of the rotation shaft 13, when the bracket 31 rotates clockwise around the rotation shaft 13, the blocking member 12 is away from the battery box 32, correspondingly, the end of the connecting member 11 away from the blocking member 12 is gradually close to the stopper 21, the blocking member 12 completely leaves the battery box 32, that is, the blocking member 12 does not affect the movement of the battery box 32 out of the bracket assembly, the connecting member 11 supports the stopper 21, thereby preventing the locking mechanism 10 from continuing to rotate clockwise, and preventing the locking mechanism 10 and the battery box 32 from being too far apart. In other embodiments, in order to avoid the pushing force applied by the blocking member 12 to the battery box 32 from being too large, the stopper 21 may be disposed on the bracket 31 at the end of the connecting member 11 close to the blocking member 12, so as to avoid the locking mechanism 10 from rotating too much counterclockwise. Of course, the stoppers 21 may be provided on the brackets 31 on both sides of the rotation shaft 13. The above description of counterclockwise, clockwise and corresponding effects is only with respect to fig. 3. In other figures or embodiments, the counterclockwise, clockwise, and corresponding effects may differ from those described above.

In a preferred embodiment, the carriage assembly further comprises a driving mechanism for driving the movement of the locking mechanism 10. In the embodiment, the driving mechanism is used to realize the movement of the locking mechanism 10, which is beneficial to simplifying the locking process of the battery box 32 and improving the locking efficiency of the battery box 32. Preferably, a driving mechanism may be provided on the bracket 31 and used to drive the movement of the locking mechanism 10. In this embodiment, the driving mechanism may be a hydraulic transmission assembly, a cylinder assembly, etc., wherein a hydraulic rod of the hydraulic transmission assembly or a piston of the cylinder assembly drives the connecting member 11 or the blocking member 12 to move. The rotating shaft 13 can also be driven to rotate through the multi-link mechanism, so as to drive the locking mechanism 10 to rotate. The motor may be used to drive the gear, and the rotating shaft 13 may be sleeved with a corresponding gear or rack.

In other embodiments, the driving mechanism may be disposed on a lifting mechanism disposed at the bottom of the bracket 31, the lifting mechanism being used for lifting the bracket 31, and the lifting mechanism being used for pushing the locking mechanism 10 to lock the battery box 32 on the bracket 31. Specifically, the lifting mechanism may push the blocking member 12 of the locking mechanism 10, for example, as shown in fig. 3, the lifting mechanism may push the blocking member 12 from bottom to top, the blocking member 12 drives the connecting member 11, the connecting member 11 rotates around the rotating shaft 13, and meanwhile, the blocking member 12 pushes the battery box 32 to move. When the lifting mechanism pushes the blocking member 12 to the preset position, the battery box 32 reaches the locking position, thereby achieving locking of the battery box. As an embodiment, the preset position may be a position where the connection member 11 is horizontal.

To improve the automation level of the tray assembly, the tray assembly further includes a first sensor for detecting a specific position of the battery box 32, and an output end of the first sensor is electrically connected to the driving mechanism. In the embodiment, the first sensor is used for detecting the specific position of the battery box 32, and the output end of the first sensor is electrically connected to the driving mechanism, so that the accuracy and reliability of the installation of the battery box 32 are improved, and the automation level of the installation of the battery box 32 is also improved.

As a specific embodiment, the first sensor may be electrically connected to the driving mechanism, and the first sensor is used to detect a specific position of the battery box 32 when the battery box 32 is mounted to the bracket 31, and when the battery box 32 is in the locking position, the first sensor will send a locking in-place signal to the electric vehicle, the electric vehicle will send a start signal to the driving mechanism, and after the driving mechanism receives the start signal, the driving mechanism is used to push the locking mechanism 10 to rotate, so that the locking mechanism 10 abuts against a side surface of the battery box 32, thereby achieving locking of the battery box 32. The first sensor may be an infrared sensor, a laser sensor, a photoelectric sensor, or the like, and may be used in the present embodiment.

To further increase the level of automation of the carriage assembly, the carriage assembly further comprises a second sensor for detecting the locking state of the locking mechanism 10. The present embodiment uses the second sensor to detect the state of the locking mechanism 10, which is advantageous for improving the reliability of locking the battery box 32.

As a specific embodiment, after the battery box 32 is mounted to the bracket 31 and the locking mechanism 10 is rotated to the locking state, the second sensor detects that the locking mechanism 10 is in the locking state and is used for sending the in-position signal to the driving mechanism of the locking mechanism 10, and after the driving mechanism of the locking mechanism 10 receives the in-position signal, the driving of the locking mechanism 10 is stopped, and the locking mechanism 10 abuts against the battery box 32, so that the battery box 32 is locked on the bracket 31.

In other embodiments, a monitoring point of a second sensor may be further disposed on the locking mechanism 10, the second sensor is disposed on the driving mechanism or the bracket 31, when the locking mechanism 10 rotates to a preset position, that is, when the monitoring point reaches the preset position, the second sensor senses the monitoring point, the second sensor is configured to send a stop signal to the driving mechanism, after the driving mechanism receives the stop signal, the driving mechanism stops, the locking mechanism 10 correspondingly stops rotating, and the battery box 32 reaches the locking position, thereby achieving locking of the battery box 32. As an embodiment, the preset position may be a position where the inner side surface of the blocking member 12 of the locking mechanism 10 is vertical. The second sensor may be an infrared sensor, a laser sensor, a photoelectric sensor, or the like, and may be used in the present embodiment.

In other embodiments, the bracket assembly further comprises a driving member, one end of the driving member is connected to the locking mechanism 10, and the other end of the driving member is located on the moving path of the battery box 32 on the bracket 31; the battery box 32 is installed in the bracket 31 from the outside of the bracket 31, and the battery box 32 will press the driving member and move the locking mechanism 10, so as to lock the battery box 32 on the bracket 31. In this embodiment, the driving element is used to convert the movement of the battery box 32 into the movement of the locking mechanism 10, so that the battery box 32 is installed, and the locking of the locking mechanism 10 on the battery box 32 is also realized, which is beneficial to simplifying the procedure of locking the battery box 32 and improving the efficiency of installing the battery box 32.

In a preferred embodiment, a driving member is connected to the rotating shaft of the bracket assembly, and the driving member is used for driving the rotating shaft to rotate so as to drive the locking mechanism 10 to rotate. This embodiment utilizes the driving piece to drive the axis of rotation to drive locking mechanism 10 and rotate, and then realize the locking of battery box 32, be favorable to simplifying the process of battery box 32 locking, be favorable to improving the efficiency of battery box 32 installation.

Specifically, as can be understood from fig. 3, the bracket assembly includes a rotating shaft 13, the locking mechanism 10 includes a link 11 and a blocking member 12, the link 11 is swingably connected to the bracket 31 via the rotating shaft 13, and the blocking member 12 is provided at one end of the link 11. The driving member may comprise a sliding block, one side of which is connected to the bottom surface of the battery box 32, and the other side of which is used to abut against a sliding area of the connecting member 11, the sliding area being disposed on the connecting member 11 and located between one end of the connecting member 11 away from the blocking member 12 and the rotating shaft 13. When the battery box 32 slides into the bracket 31 from the outside of the bracket 31, the sliding block slides through the rotating shaft 13 and contacts the sliding area, and then the sliding block drives the connecting element 11 to rotate around the rotating shaft 13, the battery box 32 continues to be pushed into the bracket 31, the sliding block continues to slide in the sliding area, the connecting element 11 continues to rotate around the rotating shaft 13, and the blocking component 12 continues to push the battery box 32. When the battery box 32 reaches the locking position, the battery box 32 stops moving, the sliding block stops sliding, the connecting piece 11 stops rotating around the rotating shaft 13, the blocking component 12 stops pushing the battery box 32, and at the moment, the blocking component 12 tightly abuts against the side surface of the battery box 32, so that the locking and fixing of the battery box 32 are realized. In the embodiment, by designing the sliding member between the battery box 32 and the locking mechanism 10, the movement of the battery box 32 into the bracket 31 is converted into the rotation of the locking mechanism 10 around the rotating shaft 13, the design form of the bracket assembly is simplified, and the locking efficiency of the battery box 32 is improved.

When the battery box reaches the locking position, the electric connection plug on the bracket and the electric connection socket on the battery box form electric connection, the electric connection plug is arranged on the back plate of the bracket facing the battery, the electric connection socket is arranged on the side wall of the battery box facing the bracket, the bracket comprises a support plate and a back plate, the support plate is used for bearing the battery box, and the back plate is used for being installed on the electric automobile.

As shown in fig. 5, the present embodiment is an electric vehicle, which includes a bracket assembly, and as shown in fig. 5, the electric vehicle includes a chassis 33, and the bracket assembly is disposed on a longitudinal beam of the chassis 33. Specifically, the chassis 33 includes a left longitudinal beam and a right longitudinal beam, and the left longitudinal beam and the right longitudinal beam are respectively provided with a bracket assembly. The bracket assembly is arranged in the electric automobile, so that the safety and the reliability of the battery box 32 of the electric automobile are improved, and the safety and the reliability of the electric automobile are improved.

A locking method of a battery box, a battery box 32 is placed on a bracket 31; the lock mechanism 10 as described above is rotated to close the passage of the battery case 32 into and out of the bracket 31. In the present embodiment, the locking or unlocking of the battery box 32 on the bracket 31 is realized by rotating the locking mechanism 10 of the locking device 100, which is beneficial to improving the stability of the battery box 32 and the reliability of the electrical connection of the battery box 32.

The specific method for locking the battery box comprises the following steps:

the battery box 32 is placed on the bracket 31. Specifically, the battery box 32 is placed on the bracket 31 by the battery box 32 pick-and-place mechanism, and the preset position may be a locking position of the battery box 32, or may be different from the locking position, that is, a distance from the locking position, and the battery box 32 needs to be pushed to the locking position by applying a pushing force by the locking mechanism 10.

The lock mechanism 10 is rotated to close the passage of the battery case 32 into and out of the bracket 31. Specifically, the lock mechanism 10 is driven by the drive mechanism to rotate about the rotational axis toward the battery case 32 to lock the battery case 32 at the lock position.

The drive limit mechanism fixes the lock mechanism 10 to the bracket 31. Specifically, after the battery case 32 is locked at the lock position, the lock tongue is driven to extend into the lock groove of the lock mechanism 10 to lock the lock mechanism 10.

While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.

Claims

1. The locking device is characterized by comprising a locking mechanism, wherein the locking mechanism is rotatably connected to a bracket, and the locking mechanism is rotated to lock or unlock a battery box on the bracket.

2. The lock-out mechanism of claim 1, wherein the lock-out mechanism applies a pushing force to the battery box by rotating to bring the battery box into a lock-out position on the bracket.

3. The lock-out mechanism of claim 1, wherein the lock-out mechanism includes a link member having one end rotatably connected to the bracket and a blocking member connected to the other end of the link member, the blocking member being adapted to apply a pushing force to the battery case to lock the battery case to the bracket.

4. The locking device of claim 1, further comprising a rotating shaft, wherein the locking mechanism is coupled to the bracket via the rotating shaft.

5. The lock-out mechanism of claim 1, wherein one end of the lock-out mechanism is rotatably connected to the bracket, and the other end of the lock-out mechanism is provided with an abutting surface through which the lock-out mechanism applies a pushing force to the battery box.

6. The lock-out mechanism of claim 5, wherein the other end of the lock-out mechanism is further provided with a guide surface, one end of the guide surface is connected with the abutting surface, the other end of the guide surface extends towards the end of the lock-out mechanism, and the guide surface is used for guiding the abutting surface to abut against the battery box during the rotation of the lock-out mechanism.

7. The lock-out mechanism of claim 6, wherein the guide surface is a curved surface or a sloped surface and the abutment surface is a flat surface.

8. The locking device of claim 1, wherein the locking mechanism further comprises at least one first engaging portion disposed on a side of the battery box, and the first engaging portion is configured to engage and fix the battery box.

9. The locking device of claim 8, wherein the first engaging portion is a hook, and the hook is used for engaging with a slot of the battery box;

or the first clamping part is a groove and used for clamping a clamping hook of the battery box.

10. A carrier assembly characterised in that it includes a locking device as claimed in any one of claims 1 to 9.

11. The tray assembly of claim 10, further comprising a limiting mechanism for fixing movement of the locking mechanism relative to the tray when the battery box is in the locked state to limit movement of the battery box on the tray.

12. The tray assembly of claim 11, wherein the retaining mechanism comprises a locking tongue, and the locking mechanism has a locking groove, and the locking tongue can extend into the locking groove or retract out of the locking groove.

13. The tray assembly of claim 10, wherein said locking means is movably attached to the bottom of said tray.

14. The tray assembly of claim 10, further comprising a stopper disposed in a moving path of the locking mechanism in the tray, the stopper defining a movement limit position of the locking mechanism during locking or unlocking.

15. The tray assembly of claim 10, further comprising a drive mechanism for driving movement of the locking mechanism.

16. The tray assembly of claim 15, further comprising a first sensor for detecting a specific position of the battery box, wherein an output of the first sensor is electrically connected to the drive mechanism.

17. The tray assembly of claim 15, further comprising a second sensor for detecting a locked state of the locking mechanism.

18. The tray assembly of claim 15, further comprising an actuating member, one end of the actuating member being connected to the latching mechanism and the other end of the actuating member being positioned in the path of movement of the battery compartment on the tray;

the battery box is installed in the bracket from the outside of the bracket, and the battery box can extrude the driving piece and drive the locking mechanism to move so as to realize the locking of the battery box on the bracket.

19. The tray assembly of claim 18, wherein said drive member is coupled to said rotational shaft of said locking mechanism for driving said rotational shaft to rotate said locking mechanism.

20. An electric vehicle comprising a bracket assembly as claimed in any one of claims 11 to 19.

21. A locking method of a battery box is characterized by comprising the following steps:

placing the battery box on the bracket;

rotating the locking mechanism of claim 1 to close the passage of the battery compartment into and out of the bracket.