CN106515678B

CN106515678B - Heavy-load battery box

Info

Publication number: CN106515678B
Application number: CN201611030945.3A
Authority: CN
Inventors: 李长宏; 梁熊俊; 刘洋
Original assignee: Shenzhen Jingzhi Machine Co Ltd
Current assignee: Shenzhen Jingzhi Machine Co Ltd
Priority date: 2016-11-22
Filing date: 2016-11-22
Publication date: 2023-03-31
Anticipated expiration: 2036-11-22
Also published as: CN106515678A

Abstract

The invention relates to a heavy-load battery box. Realize through the flexible arm of robot the transfer of battery box between vehicle battery storehouse and support battery storehouse, the battery box includes the box, the protrusion respectively the relative both sides of box are used for carrying on first installed part and second installed part on vehicle battery storehouse or the support battery storehouse, the protrusion the relative both sides of box are used for carrying on support piece on the flexible arm, and set up and be in electric connector on the box. The battery box carries on vehicle battery compartment or support battery compartment through first installed part and second installed part, the gravity of battery box transmits to vehicle battery compartment or support battery compartment through first installed part and second installed part, flexible arm stretches into wherein and can contact with support piece to directly play to bear and the transport effect to the battery box, the restriction of size and position condition has been eliminated, make flexible arm directly drive smooth discrepancy support battery compartment and vehicle battery compartment of battery box, it is convenient that the battery box is changed.

Description

Heavy-load battery box

Technical Field

The invention relates to the technical field of batteries, in particular to a heavy-load battery box.

Background

Along with the great support of the state on the electric automobile and the continuous development of the battery charging and replacing technology, various battery charging and replacing vehicles come into operation. At present, more and more large vehicles begin to adopt a pure electric driving mode. With many large electric vehicles using a charging and replacing mode, generally, the traditional battery box is light in weight (less than one ton), the bottom surface of the battery box is directly ballasted on the battery compartment, and during the vehicle replacing process, the telescopic arm cannot directly bear the battery box in the battery compartment, and the battery box must be pulled out from the battery compartment to the telescopic arm through a pull rod on a robot so as to be carried and transported, or the battery box on the telescopic arm is pushed into the battery compartment. However, for heavy-duty batteries (the weight can reach 6 t), the section size of the telescopic arm is obviously increased, and the position of a battery compartment on a vehicle is limited, so that the interference effect exists, and the battery box cannot be pulled from the battery compartment to the telescopic arm by the pull rod or pushed from the telescopic arm into the battery compartment.

Disclosure of Invention

On the basis of this, the method is suitable for the production, there is a need for a heavy duty battery box that can be easily replaced.

The utility model provides a heavy load battery box, realizes through the flexible arm of robot the transfer of battery box between vehicle battery compartment and support battery compartment, its characterized in that, the battery box includes the box, the protrusion respectively the relative both sides of box are used for carrying on first installed part and second installed part on vehicle battery compartment or the support battery compartment, the protrusion the relative both sides of box are used for carrying on support piece on the flexible arm, and set up and be in electric connector on the box.

In one embodiment, the box body is rectangular and comprises a top plate, the bottom plate and the two side plates are connected with the top plate and the bottom plate; the first mounting piece, the second mounting piece and the supporting piece are arranged on the two side plates.

In one embodiment, the first mounting part comprises two first mounting blocks which are symmetrical relative to a central line on the long side of one of the side plates, the second mounting piece comprises two second mounting blocks which are symmetrical relative to the central line on the long edge of the other side plate, the supporting pieces are four supporting blocks, and the supporting blocks are connected with the first mounting blocks and the second mounting blocks.

In one embodiment, the first mounting part and the second mounting part are respectively provided with a mounting surface corresponding to the vehicle battery compartment and the bracket battery compartment, the supporting block is fixed at one end of the mounting surface close to the side plate, a supporting surface parallel to the mounting surface and corresponding to the robot is arranged on the supporting block, and the distance from the supporting surface to the bottom plate is smaller than the distance from the mounting surface to the bottom plate.

In one embodiment, the mounting surface of the first mounting block is provided with a mounting groove extending in a direction perpendicular to the side plate, and the mounting groove is matched with a U-shaped mounting column arranged on the vehicle battery compartment or the bracket battery compartment.

And the mounting surface of the second mounting block is provided with a mounting hole extending along a direction perpendicular to the mounting surface, and the mounting hole is matched with a cylindrical mounting column arranged on the vehicle battery bin or the bracket battery bin.

In one embodiment, the depth of each of the mounting groove and the mounting hole is greater than the distance between the support surface and the mounting surface.

In one embodiment, a first reinforcing block connected with one side plate is arranged between the two first mounting blocks, and a second reinforcing block connected with the other side plate is arranged between the two second mounting blocks;

the first reinforcing block and the second reinforcing block are respectively provided with a first step surface corresponding to the vehicle battery bin and the bracket battery bin, and a second step surface corresponding to the robot and parallel to the first step surface; the distance from the first step surface to the bottom plate is equal to the distance from the mounting surface to the bottom plate, and the distance from the second step surface to the bottom plate is equal to the distance from the supporting surface to the bottom plate.

In one embodiment, the first step surface of the first reinforcing block is provided with a guide groove matched with the U-shaped mounting column, and the first step surface of the second reinforcing block is provided with a guide hole matched with the cylindrical mounting column.

In one embodiment, the second step surface is provided with a positioning hole, and the positioning hole is matched with a positioning column arranged on the robot.

In one embodiment, the number of the positioning holes is one.

According to the heavy-load battery box provided by the invention, the first mounting piece, the second mounting piece and the supporting piece are arranged on the two opposite sides of the box body, the battery box is carried on the vehicle battery bin or the support battery bin through the first mounting piece and the second mounting piece, the gravity of the battery box is transmitted to the vehicle battery bin or the support battery bin through the first mounting piece and the second mounting piece, the telescopic arm of the robot extends into the battery box and can be contacted with the supporting piece, so that the battery box is directly loaded and transported, the restriction on size and position conditions is eliminated, the telescopic arm directly drives the battery box to smoothly enter and exit the support battery bin and the vehicle battery bin, and the battery box is convenient to replace.

Drawings

FIG. 1 shows a robot located at vehicle battery compartment and the structural schematic diagram among the bracket battery bins;

FIG. 2 is a schematic front view of the robot;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;

FIG. 4 is a side view of the structure of FIG. 2;

FIG. 5 is a schematic view of the structure of the cargo fork arm;

FIG. 6 is a side view of the structure of FIG. 5;

FIG. 7 is a perspective view of a load-bearing structure;

FIG. 8 is a schematic view of a battery box mounted in a vehicle battery compartment or cradle battery compartment;

FIG. 9 is a schematic front view of the structure of FIG. 8;

FIG. 10 is a left side view of the structure of FIG. 8;

FIG. 11 is a right side view of the structure of FIG. 8;

FIG. 12 is a pallet fork arm carrying battery a partial structure schematic diagram of the box;

fig. 13 is a schematic view of the overall assembly of the robot carrying the battery box.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "inner", "outer", "left", "right" and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Referring to fig. 1 and 2, a heavy-duty robot is installed between a first rail 51 and a second rail 52, the first rail 51 and the second rail 52 are located between a vehicle battery compartment 40 and a cradle battery compartment 30, and is used for automatically replacing a battery box 20 between the vehicle battery compartment 40 and the cradle battery compartment 30, and the robot includes a traveling mechanism 10, a carrying mechanism 200, a lifting mechanism 300, and a controller 400. The traveling mechanism 10 slides between the first guide rail 51 and the second guide rail 52, the traveling mechanism 10 includes a body 110 and a first driver 120, the first driver 120 is mounted on the body 110, the first driver 120 can drive the body 110 to slide along a path defined by the first guide rail 51 and the second guide rail 52, and in particular, the first driver 120 is a first driving motor. The carrying mechanism 200 is disposed on the machine body 110, the carrying mechanism 200 includes a yoke assembly 201 and a second driver 230, the second driver 230 can drive the yoke assembly 201 to perform a telescopic motion, so that the yoke assembly 201 carries the battery box 20 for carrying. The lifting mechanism 300 is installed on the machine body 110, and the lifting mechanism 300 is used for driving the bearing mechanism 200 to slide up and down along the machine body 110. The controller 400 is electrically connected to the traveling mechanism 10, the supporting mechanism 200, and the lifting mechanism 300, and is configured to control the motion states of the traveling mechanism 10, the supporting mechanism 200, and the lifting mechanism 300.

Referring to fig. 1 and 2, the machine body 110 includes a bottom beam 112, a top beam 111, and two uprights 113. The bottom beam 112 is parallel to the top beam 111, the two upright posts 113 are parallel to each other and are respectively connected to the ends of the bottom beam 112 and the top beam 111, and the cross section of the whole machine body 110 is in a square structure. The bottom beam 112 corresponds to the first guide rail 51, the bottom beam 112 is provided with a travelling wheel 114, the travelling wheel 114 is in sliding fit with the first guide rail 51 and is connected with the first driver 120, and in order to improve the travelling precision of the machine body 110 between the first guide rail 51 and the second guide rail 52, the bottom beam 112 can be additionally provided with a guide wheel 115. The top beam 111 corresponds to the second guide rail 52, and the top beam 111 is also provided with a guide wheel 115, and the guide wheel 115 is slidably engaged with the second guide rail 52. The first driver 120 drives the whole body 110 to move by driving the road wheels 114, and because the guide wheels 115 and the road wheels 114 have rolling friction with the first guide rail 51 and the second guide rail 52, the movement resistance of the body 110 is reduced, and meanwhile, the response speed and the movement precision of the body 110 during walking are improved.

Referring to fig. 1 to 3, the lifting mechanism 300 includes a third driving motor 310, a first synchronizing sprocket 320, a second synchronizing sprocket 330, a driving chain 340, a tension sprocket 380, a lifting rope 350, and a pulley 360. The third driving motor 310 is installed at the bottom of the upright column 113, the first synchronous sprocket 320 is installed on the output shaft of the third driving motor 310, the second synchronous sprocket 330 is installed on the top beam 111, the tension sprockets 380 are located between the first synchronous sprocket 320 and the second synchronous sprocket 330, the number of the tension sprockets 380 is two, and the heights of the two tension sprockets 380 relative to the bottom beam 112 are different. The driving chain 340 is provided with a connecting block 370, specifically, the connecting block 370 is arranged at one end of the driving chain 340, and the other end of the driving chain 340 winds around the first synchronous sprocket 320, the second synchronous sprocket 330 and the two tension sprockets 380 until being connected with the connecting block 370. The pulley 360 is installed on the top rail 111, one end of the lifting rope 350 is connected with the connection block 370, and the other end of the lifting rope 350 is wound around the pulley 360 and connected with the carrying mechanism 200. The transmission chain 340 and the lifting rope 350 are both connected with the connecting block 370, the transmission chain 340 can guide the movement of the lifting rope 350, the movement precision of the bearing mechanism 200 is ensured, and the pulley 360 is used for changing the stress direction of the lifting rope 350.

When the third driving motor 310 rotates forward, the transmission chain 340 moves clockwise, and the connection block 370 ascends, so that the lifting rope 350 drives the carrying mechanism 200 to slide downward along the machine body 110. When the third driving motor 310 rotates reversely, the transmission chain 340 moves counterclockwise, and the connection block 370 descends, so that the lifting rope 350 drives the carrying mechanism 200 to slide upward along the machine body 110.

Referring to fig. 2, 4 and 13, the yoke assembly 201 includes a fork carriage 210 and two fork arms 220. The fork carriage 210 comprises a connecting frame 211 and two mounting frames 212, the two mounting frames 212 are respectively mounted on the two columns 113 and are located at the same height on the columns 113, two ends of the connecting frame 211 are respectively connected with the top ends of the two mounting frames 212, rollers 213 are arranged on the mounting frames 212, the mounting frames 212 are in sliding fit with the columns 113 through the rollers 213, the ends of lifting ropes 350 are fixed on the mounting frames 212 or the connecting frames 211, and the lifting ropes 350 drive the fork arm assembly 201 to move up and down along the columns 113. The cargo forks 220 are installed at the same positions of the two mounting frames 212, the planes of the two cargo forks 220 are parallel to the plane of the connecting frame 211 (both are horizontal planes), during loading, the battery box 20 is placed on the two prongs 220.

Referring to fig. 5 and 6, the fork arm 220 includes a fixing arm 221 and a telescopic arm 222, the fixing arm 221 is fixedly connected to the mounting frame 212, and the fixing arm 221 is provided with a rack 2213. The telescopic arm 222 is slidably engaged with the fixed arm 221, that is, the telescopic arm 222 can perform a front-back telescopic motion in a horizontal plane relative to the fixed arm 221, and when the telescopic arm 222 moves forward, the telescopic arm 222 extends; when the telescopic arm 222 moves backward, the telescopic arm 222 contracts. The second driver 230 includes a second driving motor 231 and a gear 232, the second driving motor 231 is fixedly installed at the end of the telescopic arm 222, the gear 232 is connected to an output shaft of the second driving motor 231, and the gear 232 is engaged with the rack 2213 on the fixing arm 221. When the second driving motor 231 drives the gear 232 to operate, the gear 232 rolls back and forth on the rack 2213, thereby driving the telescopic arm 222 to perform a back and forth telescopic motion relative to the fixed arm 221. Of course, the telescopic arm 222 may also be driven by an air cylinder, and the piston rod of the air cylinder drives the telescopic arm 222 to perform the front-back telescopic motion.

Referring to fig. 5 and 6, in particular, the fixing arm 221 includes a fixing plate 2211 and a first mounting plate 2212, the first mounting plate 2212 is perpendicularly connected to the fixing plate 2211, that is, the fixing plate 2211 is located in a vertical plane, the first mounting plate 2212 is located in a horizontal plane, the first mounting plate 2212 is connected to the fixing arm 221 to form an L-shaped or T-shaped structure, and the rack 2213 is disposed on the first mounting plate 2212.

Referring to fig. 5 and 6, the telescopic arm 222 includes a movable plate 2221 and a second mounting plate 2222, the second mounting plate 2222 is vertically connected to the movable plate 2221 and corresponds to the first mounting plate 2212, that is, the movable plate 2221 is located in a vertical plane, the second mounting plate 2222 is located in a horizontal plane, and the second mounting plate 2222 is connected to the movable arm to form an L-shaped or T-shaped structure. The shape of the telescopic arm 222 is substantially the same as that of the fixing arm 221.

Referring to fig. 5 and 6, the fixed plate 2211 is provided with a first slide rail 2214, the first slide rail 2214 extends along the length direction of the fixed plate 2211, the movable plate 2221 is provided with a first slide block 2229, and the first slide block 2229 and the first slide rail 2214 form a sliding fit relationship. Similarly, the movable plate 2221 is provided with a second slide rail 2225, the second slide rail 2225 is parallel to the first slide rail 2214, when the telescopic arm 222 is slidably engaged with the fixed arm 221, a certain distance is kept between the first slide rail 2214 and the second slide rail 2225 along the height direction of the machine body 110, the two are not in the same line (i.e. staggered), a second slider 2215 is disposed on the fixed plate 2211, and the second slider 2215 is slidably engaged with a second sliding rail 2225 on the movable plate 2221.

Referring to fig. 5 to 7, the number of the first slide rail 2214 and the second slide rail 2225 may be multiple, for example, two, according to the requirement of actual situations, as long as it is ensured that the multiple first slide rails 2214 and the multiple second slide rails 2225 are arranged at intervals in the height direction of the machine body 110. In this embodiment, the number of the first slide rail 2214 and the second slide rail 2225 is one. Due to the fact that the first sliding rails 2214 and the second sliding rails 2225 which are arranged in a staggered mode are arranged, a reliable meshing relation is formed between the telescopic arm 222 and the fixing arm 221, bearing capacity of the telescopic arm 222 is enhanced, under the condition that the battery box 20 is heavy in weight, the telescopic arm 222 cannot shake or swing, stable operation of the telescopic arm 222 relative to the fixing arm 221 is guaranteed, and the telescopic arm 222 can accurately convey the battery box 20 to the position corresponding to the vehicle battery compartment 40 or the support battery compartment 30.

Further, in the present embodiment, the second mounting plate 2222 is provided with a sliding plate 2223, and the sliding plate 2223 can slide along the length direction of the second mounting plate 2222, that is, the sliding plate 2223 can slide relative to the telescopic arm 222. Telescopic arm 222 is further provided with a power assembly, which provides a driving force for the movement of slide 2223 relative to telescopic arm 222.

Referring to fig. 5-7, in particular, the power assembly includes a drive sprocket 2226, a driven sprocket 2227 and a chain 2228. A driving sprocket 2226 is mounted on the output shaft of the second driving motor 231, i.e., the driving sprocket 2226 is coaxially disposed with the above-mentioned gear 232, and a driven sprocket 2227 is disposed at an end of the telescopic arm 222 opposite to the driving sprocket 2226. One end of the chain 2228 is connected to the front end of the sliding plate 2223, and the other end of the chain 2228 is wound around the driven sprocket 2227 and the driving sprocket 2226 and connected to the rear end of the sliding plate 2223. When the second driving motor 231 drives the chain 2228 to move through the driving sprocket 2226, the chain 2228 slides the traction sliding plate 2223 back and forth along the second mounting plate 2222, thereby performing telescopic movement with respect to the telescopic arm 222. It will be appreciated, of course, that as slide 2223 slides forward, the front end of the sliding plate 2223 does not extend beyond the position of the driven sprocket 2227.

Referring to fig. 5, 12 and 13, when the battery box 20 is loaded on the fork arm 220, the battery box 20 is in direct contact with the slide 2223. When the telescopic arm 222 extends a certain distance relative to the fixed arm 221, in the case that the telescopic arm 222 stops moving, the sliding plate 2223 only needs to be driven to slide relative to the telescopic arm 222, so as to change the distance of the battery box 20 relative to the fixed arm 221 (i.e. the length of the battery box 20 extending forward along with the telescopic arm 222), and therefore, the sliding plate 2223 can perform secondary fine adjustment on the extending length of the battery box 20 relative to the fixed arm 221. When the fork arm 220 carries the battery box 20 and puts the battery box into the vehicle battery compartment 40 or the rack battery compartment 30, under the combined action of the movement of the telescopic arm 222 and the sliding plate 2223, the battery box 20 can be accurately carried to a specified position, so that good mechanical and electrical connection between the battery box 20 and the vehicle battery compartment 40 or the rack battery compartment 30 is realized, and the installation efficiency and accuracy of the battery box 20 are improved.

Furthermore, slide 2223 is provided with reference column 2224, and reference column 2224 includes a cylindrical section and a circular truncated cone-shaped section. The cylindrical section is fixed to the slide plate 2223 and the truncated cone-shaped section is integrally connected to the cylindrical section, in fact, the truncated cone-shaped section is a chamfer provided at the upper end of the cylindrical section, which facilitates the matching of the whole positioning column 2224 with the battery box 20. When the battery box 20 is placed on the fork arm 220, the battery box 20 cannot slide relative to the sliding plate 2223 due to the limiting effect of the positioning posts 2224, so that the bearing stability of the fork arm 220 for the battery box 20 is ensured. Of course, an electromagnet or a vacuum device may be disposed on the sliding plate 2223 to position the battery box 20.

Referring to fig. 8 and 12, a heavy-duty battery box 20, which is transferred between a vehicle battery compartment 40 and a rack battery compartment 30 by a fork arm 220 on a robot, includes a box body 510, a first mounting member 520, a second mounting member 530, a support member 540, and an electrical connector 550. First and second mounting

members

520 and 530 protrude from opposite sides of the case 510 and are adapted to be mounted on the vehicle battery compartment 40 and the rack battery compartment 30 to achieve mounting of the battery compartment 20 (i.e., mechanical coupling between the battery compartment 20 and the vehicle battery compartment 40 and the rack battery compartment 30). Likewise, the supports 540 protrude from opposite sides of the housing 510 and are adapted to ride on the telescopic arms 222 of the robot, i.e., the supports 540 are in direct contact with the sled 2223. An electrical connector 550 is mounted on the housing 510, and the battery box 20 is electrically connected to the vehicle battery compartment 40 and the cradle battery compartment 30 through the electrical connector 550.

Referring to fig. 8, in the present embodiment, the case 510 has a rectangular parallelepiped shape, but may have a square shape. The cabinet 510 includes a top plate 511, a bottom plate 512, and two side plates 513, wherein the two side plates 513 are connected in parallel between the top plate 511 and the bottom plate 512, and a first mounting member 520, a second mounting member 530, and a supporting member 540 are disposed on the two side plates 513.

Referring to fig. 8, the first mounting member 520 is disposed on one of the side plates 513, and the first mounting member 520 includes two first mounting blocks 521, where the two first mounting blocks 521 are symmetrical with respect to a center line on a long side of the side plate 513; a second mounting member 530 is provided on the other side plate 513, and the second mounting member 530 includes two second mounting blocks 531, the two second mounting blocks 531 being symmetrical with respect to a center line on the long side of the side plate 513. The support 540 is four support blocks, and the four support blocks are respectively mounted on the first mounting block 521 and the second mounting block 531.

Referring to fig. 8 to 12, the first mounting block 521 and the second mounting block 531 are each provided with a mounting surface 5211, and the mounting surface 5211 is perpendicular to the side plate 513 of the battery box 20, that is, the mounting surface 5211 is a transverse plane. After the battery box 20 is installed, the mounting surface 5211 is in direct contact with the vehicle battery compartment 40 and the cradle battery compartment 30 (i.e., the mounting surface 5211 is ballasted onto the vehicle battery compartment 40 and the cradle battery compartment 30). The support block is fixed on one end of the mounting surface 5211 close to the side plate 513, the support block is provided with a support surface 541, the support surface 541 is parallel to the mounting surface 5211, when the robot carries the battery box 20, the support surface 541 is directly contacted with a sliding plate 2223 on the robot (namely, the support surface 541 is ballasted on the sliding plate 2223), the distance from the support surface 541 to the bottom plate of the battery box 20 is smaller than the distance from the mounting surface 5211 to the bottom plate of the battery box 20, namely, the height difference between the support surface 541 and the mounting surface 5211 in the vertical direction exists, and a certain gradient exists between the support surface 541 and the mounting surface 5211, so that the robot can carry the battery box 20 and mount the battery box 20 on the vehicle battery compartment 40 and the support battery compartment 30. Of course, the support surface 541 and the mounting surface 5211 may overlap, and no gradient exists therebetween.

The first mounting block 521 is provided with a mounting groove 5212, the mounting groove 5212 extends in a direction perpendicular to the side plate 513, the vehicle battery compartment 40 or the cradle battery compartment 30 is provided with a U-shaped mounting post 31, the U-shaped mounting post 31 is fitted into the mounting groove 5212 to position the mounted battery box 20,

the second mounting block 531 is provided with a mounting hole 5312, the mounting hole 5312 extends in a direction perpendicular to the mounting surface 5211, that is, the mounting hole 5312 is a vertical hole, and the vehicle battery compartment 40 or the rack battery compartment 30 is provided with a cylindrical mounting post 32, and the cylindrical mounting post 32 is matched with the mounting hole 5312 to locate the mounted battery box 20. The opening of the mounting hole 5312 is chamfered to facilitate smooth mating of the cylindrical mounting post 32 with the mounting hole 5312.

Referring to fig. 8 to 12, when the battery case 20 is mounted on the vehicle battery compartment 40 or the cradle battery compartment 30, the mounting hole 5312 may restrict the movement of the battery case 20, and the mounting groove 5212 restricts the rotation of the battery case 20. It is particularly worth mentioning that when the cylindrical mounting post 32 is effectively matched with the mounting hole 5312 of the second mounting block 531 in consideration of the machining error of the size of the battery box 20, the mounting groove 5212 can also be effectively matched with the U-shaped mounting post 31 due to the mounting groove 5212 of the first mounting block 521, so that the phenomenon that the mounting cannot be carried out due to interference is avoided. Further, the mounting grooves 5212 and the mounting holes 5312 are formed to have a depth greater than the distance from the support surface 541 to the mounting surface 5211, thereby ensuring the stability of the mounting of the battery case 20.

Referring to fig. 8 to 12, further, a first reinforcing block 560 is further disposed on one of the side plates 513, and the first reinforcing block 560 is located at a midpoint of a connecting line between the two first mounting blocks 521; the other side plate 513 is further provided with a second reinforcing block 570, and the second reinforcing block 570 is located at the midpoint of a connecting line between the two second mounting blocks 531.

The first reinforcing block 560 and the second reinforcing block 570 are each provided with a first step surface 572 and a second step surface 573, the first step surface 572 is perpendicular to the side plate 513, the first step surface 572 is directly ballasted on the vehicle battery compartment 40 and the cradle battery compartment 30 after the battery box 20 is mounted, the second step surface 573 is parallel to the first step surface 572, and the second step surface 573 is directly ballasted on the sliding plate 2223 of the telescopic arm 222 when the battery box 20 is transported. The distance from the first stepped surface 572 to the bottom plate 512 is equal to the distance from the mounting surface 5211 to the bottom plate 512, and the distance from the second stepped surface 573 to the bottom plate 512 is equal to the distance from the supporting surface 541 to the bottom plate 512, so that the first mounting block 521, the second mounting block 531, the first reinforcing block 560 and the second reinforcing block 570 can be simultaneously stressed no matter the battery box 20 is in a carrying or mounting state. Due to the arrangement of the first reinforcing block 560 and the second reinforcing block 570, the telescopic arm 222 on the robot can be stressed more evenly, and the gravity of the battery box 20 is concentrated at the position contacted with the supporting block. Likewise, the vehicle battery compartment 40 or the cradle battery compartment 30 is balanced in stress, and the gravity of the battery box 20 is concentrated not only at the positions of contact with the first mounting block 521 and the second mounting block 531.

The first stepped surface 572 of the first reinforcing block 560 is provided with a guide groove 561, which cooperates with the U-shaped mounting posts 31 provided on the vehicle battery compartment 40 and the cradle battery compartment 30, and the first stepped surface 572 of the second reinforcing block 570 is provided with a guide hole 571, which cooperates with the cylindrical mounting posts 32 provided on the vehicle battery compartment 40 and the cradle battery compartment 30. Thus, the stability of the battery box 20 after installation is further improved, and slippage due to vehicle vibration is not generated.

The second step surfaces 573 of the first reinforcing block 560 and the second reinforcing block 570 are respectively provided with positioning holes 574, and the positioning holes 574 are matched with the positioning posts 2224 on the sliding plate 2223 to limit the battery box 20 during transportation.

Because be provided with first installed part 520, second installed part 530 and support piece 540 on the relative both sides at box 510, battery box 20 carries on vehicle battery compartment 40 through first installed part 520 and second installed part 530, the gravity of battery box 20 passes through first installed part 520 and second installed part 530 transmission to vehicle battery compartment 40, the flexible arm 222 of robot can stretch into in the battery compartment and contact with support piece 540, thereby directly play bearing and transport effect to battery box 20 through support piece 540, the restriction of size and position condition has been eliminated, make flexible arm 222 directly drive the smooth support battery compartment 30 and the vehicle battery compartment 40 of cominging in and going out of battery box 20, battery box 20 changes conveniently.

When the dead battery box 20 in the vehicle battery compartment 40 needs to be transferred to the bracket battery compartment 30 for recharging by a robot, the telescopic arm 222 horizontally extends out and enters the vehicle battery compartment 40, the lifting rope 350 drives the fork arm assembly 201 to move upwards along the upright post 113 until the U-shaped mounting post 31 and the cylindrical mounting post 32 are separated from the first mounting block 521, the second mounting block 531, the first reinforcing block 560 and the second reinforcing block 570, so that the battery box 20 is separated from the vehicle battery compartment 40, and then the telescopic arm 222 contracts. The traveling mechanism 10 drives the robot to move to the position corresponding to the bracket battery compartment 30 along the first guide rail 51 and the second guide rail 52, the telescopic arm 222 horizontally extends out, the bearing battery box 20 enters the bracket battery compartment 30, then the lifting rope 350 drives the fork arm assembly 201 to move downwards along the upright post 113, so that the U-shaped mounting post 31 and the cylindrical mounting post 32 are matched with the first mounting block 521, the second mounting block 531, the first reinforcing block 560 and the second reinforcing block 570, and finally, the telescopic arm 222 contracts again.

When a fully charged battery box 20 in a support battery compartment 30 needs to be transferred to a vehicle battery compartment 40 through a robot, a telescopic arm 222 horizontally extends out and enters the support battery compartment 30, a lifting rope 350 drives a fork arm assembly 201 to move upwards along an upright post 113, the telescopic arm 222 drives the battery box 20 to separate from the support battery compartment 30, the telescopic arm 222 contracts, a traveling mechanism 10 drives the robot to move to a position corresponding to the vehicle battery compartment 40 along a first guide rail 51 and a second guide rail 52, the telescopic arm 222 horizontally extends out, a bearing battery box 20 enters the vehicle battery compartment 40, then the lifting rope 350 drives the fork arm assembly 201 to move downwards along the upright post 113, finally matching of the battery box 20 and the vehicle battery compartment 40 is achieved, and finally, the telescopic arm 222 contracts again.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be understood as limiting the scope of the invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention. Therefore, the protection scope of the present patent should be subject to the appended claims.

Claims

1. A heavy-load battery box is characterized by comprising a box body, a first mounting part and a second mounting part, a support part and an electric connector, wherein the first mounting part and the second mounting part respectively protrude out of two opposite sides of the box body and are used for being carried on a vehicle battery compartment or a support battery compartment;

the box body is in a cuboid shape, the box body comprises a top plate, the bottom plate and the two side plates are connected with the top plate and the bottom plate; the first mounting part, the second mounting part and the supporting part are arranged on the two side plates; the first mounting part comprises two first mounting blocks which are symmetrical relative to a central line on the long edge of one side plate, the second mounting part comprises two second mounting blocks which are symmetrical relative to a central line on the long edge of the other side plate, the supporting parts are four supporting blocks, and the supporting blocks are connected with the first mounting blocks and the second mounting blocks; the first mounting piece and the second mounting piece are respectively provided with a mounting surface corresponding to the vehicle battery bin and the bracket battery bin, the supporting block is fixed at one end of the mounting surface close to the side plate, a supporting surface which is parallel to the mounting surface and corresponds to the robot is arranged on the supporting block, and the distance from the supporting surface to the bottom plate is smaller than the distance from the mounting surface to the bottom plate; the mounting surface is perpendicular to the side plate.

2. The heavy-duty battery box according to claim 1, characterized in that a mounting groove extending in a direction perpendicular to the side plate is provided on the mounting surface of the first mounting block, the mounting groove being fitted with a U-shaped mounting post provided on the vehicle battery compartment or the cradle battery compartment;

3. The heavy-duty battery box of claim 2, wherein the mounting grooves and mounting holes each have a depth greater than the distance from the support surface to the mounting surface.

4. The heavy-duty battery box according to claim 2 or 3, characterized in that a first reinforcing block connected with one of the side plates is arranged between the two first mounting blocks, and a second reinforcing block connected with the other side plate is arranged between the two second mounting blocks;

5. The heavy-duty battery box of any one of claims 4, wherein said first reinforcing block is located at a midpoint of a connection between said first mounting blocks.

6. The heavy-duty battery box of any one of claims 4, wherein said second reinforcing block is located at a midpoint of a connection between two of said second mounting blocks.

7. The heavy-duty battery box according to any one of claims 4, characterized in that said first step face is perpendicular to said side plates.

8. The heavy-duty battery box according to any one of claim 4, wherein the first reinforcing block is provided with a guide groove on the first step surface for engaging with the U-shaped mounting post, and the second reinforcing block is provided with a guide hole on the first step surface for engaging with the cylindrical mounting post.

9. The heavy-duty battery box of claim 4, wherein said second step surface is provided with positioning holes, said positioning holes cooperating with positioning posts provided on said robot.

10. The heavy-duty battery box of claim 9, wherein said number of positioning holes is one.