CN217062381U - Battery box - Google Patents

Abstract

The utility model discloses a battery box body, which comprises an upper cover and a lower box body, wherein the upper cover is detachably connected with the lower box body; the upper cover and the lower box body enclose a closed cavity for accommodating a battery block; the periphery of the lower box body is provided with a locking pin, the battery box body frame is provided with a locking component, and the locking pin can enter the battery box body frame along with the battery box body and is fixedly connected with the locking component. Through the utility model discloses a battery box can realize its and battery box frame's locking and install the battery box in the bottom of vehicle.

Description

Battery box

Technical Field

The utility model belongs to the technical field of battery equipment, in particular to can be used for pure electric heavy truck to trade the battery box that uses under the electric scene.

Background

Heavy truck battery replacement use scenes are increasingly common, but at present, most of battery boxes are installed in a back type manner, specifically, as shown in fig. 1, a battery box body 1002 is located at the back of a cab 1001 and is fixed to a frame cross beam 1004 through a bottom fixing device 1003.

When the automobile is installed in a back-mounted mode through the battery box body, the automobile is fixedly installed only through a plurality of independent fixing point positions, namely the bottom fixing device 1003 is used for fixedly installing, and due to the fact that the bottom fixing device 1003 is located below the automobile body, the battery system is heavy in weight and large in height, the automobile is not beneficial to high-speed long-distance driving of the automobile, and the automobile cannot meet the operation under complex road conditions. In addition, the power battery box body is of a vertical three-dimensional structure, the gravity center of the power battery box body is high, and the safety performance is reduced. Meanwhile, for the battery box body installed in a back-type mode, the battery needs to be replaced by a hoisting device with a high battery replacement station configuration, so that the height and the space of the battery replacement station occupy a large area, and the cost is high.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model discloses a battery box that pure heavy truck used under trading electric scene to overcome above-mentioned problem or solve above-mentioned problem at least partially.

In order to realize the purpose, the utility model adopts the following technical scheme:

a battery box body comprises an upper cover and a lower box body, wherein the upper cover is detachably connected with the lower box body; the upper cover and the lower box body enclose a closed cavity for accommodating a battery block; the periphery of the lower box body is provided with a locking pin, the battery box body frame is provided with a locking component, and the locking pin can enter the battery box body frame along with the battery box body and is fixedly connected with the locking component.

Optionally, a guide pin is further disposed on the outer periphery of the lower case, and the battery case frame has a guide hole through which the guide pin can pass back and forth in the vertical direction.

Optionally, an auxiliary hole is further formed in the periphery of the lower box body; the auxiliary holes are arranged in the vertical direction.

Optionally, a stage is provided at a position above a middle portion of an outer periphery of the lower case, and the lock pin, the guide pin, and the auxiliary hole are provided on the stage.

Optionally, it also has a stent; the support is located the outside of battery piece to with lower box fixed connection.

Optionally, it also has a fastening plate; the fastening plate is located on the top surface of the battery block and is connected with the bracket.

Optionally, a plurality of layers of battery blocks are arranged in the closed cavity, a partition plate is arranged between two adjacent layers of battery blocks, and the fastening plate is positioned on the top surface of the top layer of battery block; the two sides of the partition plate are respectively connected with the supports on the outer sides of the two adjacent layers of battery blocks, and the fastening plate is connected with the supports on the outer sides of the top layer of battery blocks.

Optionally, a reinforcing beam is arranged on the bottom surface of the lower box body.

Optionally, it also has a seal between the upper cover and the lower case.

Optionally, the height of the battery box is smaller than the length and width of the battery box.

According to the utility model discloses a battery box, battery box can carry out the locking through its locking round pin that the box set up under with battery box frame, just so can install the battery box in battery box frame to finally install in the bottom of vehicle, improve the stationary stability to the battery. Meanwhile, the bottom battery replacement can be realized, the requirement on the height space of the battery replacement station is lowered, and the battery replacement cost is lowered.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a schematic structural view of a battery case back-mounted in the background art of the present invention;

fig. 2 is a schematic structural diagram of a battery box frame according to an embodiment of the present invention;

fig. 3 is a schematic view of a disassembled structure of a battery box according to an embodiment of the present invention;

fig. 4a is a schematic view of the connection between the locking member and the linkage member according to an embodiment of the present invention;

fig. 4b is a schematic diagram illustrating an internal structure of the locking member when the locking pin is disengaged from the engaging groove and the locking member is in a locked state according to an embodiment of the present invention;

fig. 4c is a schematic view of the internal structure of the locking member in an unlocked state according to an embodiment of the present invention;

fig. 4d is a schematic view of the internal structure of the locking member when the locking pin is located in the engaging groove and the locking member is in the locked state according to an embodiment of the present invention;

fig. 5 is a schematic structural view illustrating the connection of the battery box frame, the battery box and the frame cross member according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a battery box according to an embodiment of the present invention, which is mounted on the bottom of a heavy truck.

Detailed Description

In order to make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to perform clear and complete description of the technical solution of the present invention. It is to be understood that the disclosed embodiments are merely exemplary of the invention, and are not intended to limit the invention to the precise embodiments disclosed. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

As shown in fig. 2 to 5, the battery case frame in this embodiment includes a frame main body 1, a support plate 7, and an elastic member 8. The frame body 1 has a cavity therein for accommodating a battery case 12. The supporting plate 7 is located at a position close to the lower end of the cavity, is connected with the inner wall of the frame body 1 in a rotating mode, and can rotate to a horizontal position perpendicular to the inner wall and a vertical position parallel to the inner wall. One end of the elastic member 8 is connected with the support plate 7, the other end of the elastic member 8 is connected with the frame body 1, and the elastic member 8 can drive the support plate 7 to rotate to a horizontal position.

When the battery case 12 is mounted to the cavity of the frame body 1, first, the driving support plate 7 is slowly rotated to be close to the inner wall of the frame body 1 against the urging force of the elastic member 8, that is, the support plate 7 is rotated to the vertical position, so that the lower end opening of the cavity is increased in size to be able to pass through the battery case 12. Then, the battery case 12 is pulled up in the cavity direction of the frame body 1 from below the support plate 7, and the battery case 12 is inserted into the cavity of the frame body 1. Then, after the battery case 12 completely enters the cavity of the frame body 1, the acting force on the supporting plate 7 is released, so that the supporting plate reversely rotates to the horizontal position under the restoring force of the elastic member 8, and the supporting in the vertical direction is formed for the battery case 12, thereby completing the installation of the battery case 12 and the frame body 1.

In the present embodiment, the elastic member 8 is a spring, and the elastic member 8 is disposed above the support plate 7. Of course, in other embodiments, the elastic member 8 may take other forms, such as a torsion spring, according to design requirements. At this time, it is possible to dispose a torsion spring at a lower position of the support plate 7, and rotate the support plate 7 to a vertical position by rotating the support plate 7 downward against the urging force of the torsion spring.

As shown in fig. 2 and 3, in the present embodiment, the battery case 12 frame includes the mounting plate 2, the mounting screw 3, the guide member 4, the interlocking member 5, the locking member 6, and the shaft pin 9 in addition to the frame main body 1, the support plate 7, and the elastic member 8.

The frame body 1 is composed of a top beam 101, a middle beam 102, a bottom beam 103, connecting ribs 104, and spaced vertical beams 105. Wherein, top beam 101, well roof beam 102 and floorbar 103 set up along horizontal direction parallel, and interval vertical beam 105 carries out interconnect along vertical direction to top beam 101, well roof beam 102 and floorbar 103 to constitute frame main part 1, connecting rib 104 then connects two top beams 101 of opposite side along the horizontal direction, improves the structural strength of whole frame main part 1. The spaced vertical beams 105 and the center beam 102 also reinforce the strength of the frame body 1.

The mounting plate 2 is located outside the frame body 1, and mounting holes are provided on the mounting plate 2, wherein the mounting holes are threaded holes in the present embodiment, and the mounting screws 3 are in threaded connection with the mounting holes.

The guide member 4, the interlocking member 5, and the locking member 6 are provided on the inner wall of the center sill 102. The guide member 4 is provided with a guide hole 401 along the vertical direction for positioning and guiding the disassembly and assembly process of the battery box 12. The linkage member 5 is connected with the locking member 6, and is used for driving the locking member 6 to install and fix the battery box 12, so that the battery box 12 is connected with the frame main body 1. In the present embodiment, the support plate 7 is located close to the floor beam 103, and thus one end of the elastic member 8 is connected to the support plate 7 and the other end is connected to the inner wall of the floor beam 103.

The shaft pins 9 penetrate through the bottom beam 103, two ends of the supporting plate 7 are movably connected with the bottom beam 103 through the shaft pins 9 respectively, and the shaft pins 9 at two ends of the same supporting plate 7 are in the same horizontal line. The cap end of the shaft pin 9 abuts on the outer wall of the bottom beam 103, and the shaft pin 9 penetrates through the bottom beam 103 and is inserted into the support plate 7, wherein the depth of the shaft pin 9 inserted into the support plate 7 can be set as appropriate. The supporting plate 7 can be vertically turned back and forth around the shaft pin 9.

Fig. 3 is a schematic view of a disassembled structure of the battery case 12 according to an embodiment of the present invention.

The utility model discloses a battery box 12 in the embodiment includes upper cover 1205, lower box 1206, upper cover 1205 and lower box 1206 threaded connection, and upper cover 1205 encloses into with lower box 1206 and encloses into the closed chamber and accomodates the battery piece in the closed chamber, is provided with locking round pin 1202 in the periphery of lower box 1206, and battery box 12 uses with battery box frame is supporting, and battery box frame has locking member 6, and locking round pin 1202 can carry out the locking with locking member 6 and be connected. Therefore, the battery case 12 can be fixedly connected to the battery case frame provided with the locking member 6 through the locking pin 1202 provided on the lower case 1206, so that the battery case 12 can be mounted on the battery case frame, and finally the battery case 12 can be mounted on the bottom of the vehicle via the battery case frame, thereby improving the stability of fixing the battery. Meanwhile, the bottom battery replacement can be realized, the requirement on the height space of the battery replacement station is reduced, and the battery replacement cost is reduced.

The battery case 12 further has a sealing member 1212, and the sealing member 1212 is disposed between the upper cover 1205 and the lower case 1206 to ensure the waterproof performance of the battery case 12. The lower case 1206 is further provided at its outer periphery with guide pins 1204, auxiliary holes 1203, and a stage 1201. The carrying platform 1201 is arranged at the upper middle part of the periphery of the lower box 1206 along the horizontal direction, so that the installation positions of the battery box 12 and the battery box frame and the gravity center height of the battery box 12 can be ensured to be jointed, and the stability is improved. A lock pin 1202, a guide pin 1204, and an auxiliary hole 1203 are provided on the stage 1201, wherein the lock pin 1202 is provided in the horizontal direction, and the guide pin 1204 and the auxiliary hole 1203 are provided in the vertical direction.

The lock pin 1202 is movable with the battery case 12 into and out of engagement with the lock member 6, thereby serving for detachable connection between the battery case 12 and the frame main body 1. The guide pin 1204 is provided in the vertical direction and can move into and out of the guide hole 401 as the battery case 12 moves, thereby forming a positioning guide for the battery case 12 in the vertical direction. The auxiliary hole 1203 is matched with an auxiliary member of the lifting mechanism for driving the linkage member 5 to move back and forth.

Further, a closed cavity surrounded by the upper cover 1205 and the lower case 1206 of the battery case accommodates a plurality of battery blocks, preferably two battery blocks, a bottom battery block 12082 and a top battery block 12081, respectively. The outer sides of the four corners of each bottom cell block 12082 are respectively provided with a bottom bracket 12102 for horizontal position fixing. A partition 1211 is provided on the top of the bottom cell block 12082, and the top cell block 12081 is placed on the top surface of the partition 1211. Top layer holders 12101 are provided on the top surfaces of the partition 1211, and one top layer holder 12101 is provided outside each of the four corners of each top layer cell block 12081 to fix the position in the horizontal direction. The top surface of the top battery block 12081 is provided with a fastening plate 1207, and the fastening plate 1207 is arranged at the edge of the battery block and the interval between the battery block and is used for compressing and fixing the battery block in the vertical direction. The bottom and top of the bottom layer support 12102 and the bottom and top of the top layer support 12101 are provided with screw holes, the bottom surface of the lower case 1206, the partition 1211 and the fastening plate 1207 are also provided with screw holes and the screw holes of the bottom surface of the lower case 1206 correspond to the screw holes of the bottom surface of the bottom layer support 12102, the screw holes of the top surface of the bottom layer support 12102 correspond to the screw holes of the partition 1211 and the bottom surface of the top layer support 12101, and the screw holes of the top surface of the top layer support 12101 correspond to the screw holes of the fastening plate 1207. The screw holes corresponding to the position relation are vertically arranged with each other. The bottom cell block 12082 and the top cell block 12081 are pressed and fixed in a closed cavity surrounded by the upper cover 1205 and the lower case 1206 of the cell case by bolting threaded holes provided in the bottom surface of the lower case 1206 and corresponding threaded holes provided in the bottom of the bottom support 12102, bolting threaded holes provided in the top of the bottom support 12102, corresponding threaded holes provided in the partition 1211, and corresponding threaded holes provided in the bottom of the top support 12101, and bolting threaded holes provided in the top of the top support 12101 and threaded holes provided in the fastening plate 1207. In this fixing manner, the bottom layer bracket 12102 provides a load support to the upper layer battery block by providing a supporting force to the partition 1211, and the fastening plate 1207 can secure the strength of the battery pack to prevent a safety problem due to vibration and the like.

The threaded holes can be arranged at corresponding positions in advance, and can be arranged immediately according to actual conditions when the bolt is connected.

Further, structural members such as a tie plate may be added to the bottom surface of the lower case 1206 for better laying the battery, and three reinforcing beams 1213 may be added to the bottom surface of the lower case 1206 for reinforcing the bottom strength. Of course, in other embodiments, depending on the specific structure of the lower case 1206, for example, the bottom surface of the lower case 1206 is a closed surface, or the bottom battery blocks 12082 may be directly laid on the bottom surface of the lower case 1206 without adding any structural members such as tie plates.

In addition, the height of the battery case 12 is preferably less than the length of the battery case 12 and the width of the battery case 12, which reduces the height of the center of gravity of the battery case and improves safety in long-distance transportation.

Fig. 4a is a schematic structural diagram of the connection between the locking member 6 and the linking member 5 according to an embodiment of the present invention. As shown in fig. 4a, the locking member 6 has a housing 605 and a cover 606 that can be connected by engagement, wherein two holes aligned in the horizontal direction are provided in the housing 605 of the locking member 6, and one end of the interlocking member 5 is located outside the locking member 6, and the other end is located inside the locking member 6 through the hole provided in the housing 605.

Fig. 4b is a schematic diagram of the internal structure of the locking member 6 when the locking pin 1202 is disengaged from the slot 601 and the locking member 6 is in the locked state according to an embodiment of the present invention. The locking member 6 further has a first lock 602, a second lock 603, a support 604 and a catch 601, and the linkage member 5 has a first linkage member 501 and a second linkage member 502. The first locking member 602 and the second locking member 603 are respectively rotatably connected to the housing 605, the first locking member 602 has a first protrusion 6021 and a first recess 6022, the second locking member 603 has a second protrusion 6031, a second recess 6032 and a third recess 6033, and the second protrusion 6031 is located between the second recess 6032 and the third recess 6033. The supporting member 604 is connected to the second locking member 603 and can rotate synchronously with the second locking member 603. The card slot 601 is located between the first locking member 602, the second locking member 603 and the supporting member 604, and opens or closes the bottom thereof with the relative rotation of the first locking member 602 and the second locking member 603, so as to form a closed state or an open state.

As shown in fig. 4b, the linking member 5 is moved horizontally to drive the first locking part 602 and the second locking part 603 to rotate relatively until the first protrusion 6021 engages with the second recess 6032, and at this time, the bottoms of the supporting part 604 and the first locking part 602 are closed, so that the card slot 601 is in a closed state.

As shown in fig. 4c, the linking member 5 is moved horizontally to drive the first locking part 602 and the second locking part 603 to rotate relatively until the first protrusion 6021 and the second protrusion 6031 abut against each other, and at this time, the bottom of the supporting part 604 and the bottom of the first locking part 602 are staggered, so that the bottom of the card slot 601 is staggered, and thus the open state is formed.

As shown in fig. 4d, by moving the linking member 5 in the horizontal direction to drive the first locking part 602 and the second locking part 603 to rotate relatively until the first protrusion 6021 engages with the third recess 6033, the second protrusion 6031 is just located in the first recess 6022, and the bottom of the supporting part 604 and the first locking part 602 are closed, so that the bottom of the card slot 601 is closed, and the locking pin 1202 is fixed inside the card slot 601.

Preferably, in this embodiment, a first torsion spring is disposed between the first lock 602 and the housing 605, and a second torsion spring is disposed between the second lock 603 and the housing 605. Wherein the first torsion spring can drive the first lock 602 to rotate clockwise relative to the housing 605 as shown in fig. 4b, even if the first linkage member 501 moves rightward; the second torsion spring can drive the second latch 603 to rotate in a counterclockwise direction with respect to the housing as shown in fig. 4b, even if the second linkage member 502 moves to the left.

At this time, by providing the first torsion spring and the second torsion spring, pretightening forces for rotating the first locking member 602 and the second locking member 603 are respectively formed. In this way, only the first linkage member 501 and the second linkage member 502 need to be driven by applying force in a single direction, the relative rotation driving of the first locking piece 602 and the second locking piece 603 is realized by overcoming the pre-tightening force generated by the first torsion spring and the second torsion spring, and meanwhile, the first locking piece 602 and the second locking piece 603 can be kept in the clamping groove closed state by means of the pre-tightening force generated by the first torsion spring and the second torsion spring, that is, the connection state of the locking member 6 and the battery case 12 is kept, so that the operation convenience of the locking member 6 is improved.

Fig. 5 is a schematic structural diagram of an installation layout of the battery box frame, the battery box 12 and the frame cross member 11 in an embodiment of the present invention. Referring to fig. 2 and 5, the battery case 12 is mounted inside the frame body 1 in the battery case frame, the mounting plates 2 are integrated with the frame body 1, and there are four mounting plates 2 at two ends of the frame body 1. The frame cross beam 11 is provided with a threaded hole, and the mounting screw 3 is screwed into the mounting hole on the mounting plate 2 and the threaded hole on the frame cross beam 11, so that threaded connection is carried out.

Fig. 6 is a schematic diagram illustrating the structure of the battery box 12 mounted on the bottom of a heavy truck according to an embodiment of the present invention. As shown in fig. 6, the mounted battery case 12 is housed in a battery case frame in the horizontal direction, the battery case frame is connected to the cross member 11, and the battery case 12 is located below the cabin 13.

Hereinafter, the mounting method of the present invention will be specifically described with reference to fig. 2 to 5.

When the battery case 12 is mounted, the battery case 12 is first supported in the vertical direction by a supporting mechanism, such as a hydraulic cylinder. Then, with the aid of an auxiliary mechanism provided on the lifting mechanism, for example, a long rod with a hand grip at the top end, the long rod passes through the auxiliary hole 1203 to connect with the first linkage member 501 and pushes the first linkage member 501 leftwards as shown in fig. 4b, so as to drive the first locking piece 602 to rotate counterclockwise against the pre-tightening force of the first torsion spring, and at the same time, the first protrusion 6021 applies a driving force to the second protrusion 6031 to overcome the pre-tightening force of the second torsion spring on the second locking piece 603, so that the first protrusion 6021 and the second protrusion 6031 rotate to the mutually abutting position, that is, the internal state of the locking member 6 changes from fig. 4b to fig. 4c, and the locking slot 601 enters the open state from the closed state. Then, the position of the lift mechanism is adjusted so that the guide pins 1204 are aligned with the guide holes 401 in the vertical direction.

Then, the support plate 7 is driven to rotate in a direction approaching the inner wall of the base beam 103 against the urging force of the elastic member 8, so that the size of the lower end opening of the frame body 1 is increased, wherein the support plate 7 may be driven to rotate by means of a jack post provided on the lifting mechanism, or the support plate 7 may be independently driven by using an additional jack rod. Then, the lifting mechanism is driven to lift the battery box 12 into the cavity of the frame body 1 in the vertical direction, and at the same time, the guide pin 1204 enters the guide hole 401 for positioning, and the locking pin 1202 enters the slot 601. Next, the auxiliary mechanism disposed on the lifting mechanism drives the first linking member 501 to move leftward continuously, so as to drive the first locking part 602 to rotate counterclockwise continuously against the pre-tightening force of the first torsion spring, so that the first protrusion 6021 is engaged with the third recess 6033, that is, the internal state of the locking member 6 changes from fig. 4c to fig. 4d, so that the card slot 601 enters the closed state from the open state, and the locking pin 1202 is confined in the card slot 601 under the pre-tightening force of the first torsion spring and the second torsion spring. Then, the acting force on the support plate 7 is released, and the support plate is reversely rotated to the horizontal position under the acting force of the elastic member 8, so that the battery case 12 is supported in the vertical direction, and the fixed connection between the battery case 12 and the frame main body 1 is completed. And finally, withdrawing the lifting mechanism, thereby completing the installation of the battery box body 12 and the battery box body frame.

When the battery case 12 is taken out, first, the battery case 12 is lifted upward in the vertical direction by the lifting mechanism, and the locking pin 1202 slightly moves upward in the vertical direction in the engaging groove 601, so that the battery case 12 is lifted upward by a certain distance. Then, the driving support plate 7 is rotated in the inner wall direction of the base beam 103 to the vertical direction against the urging force of the elastic member 8, and the lower end opening size of the frame body 1 is increased again. Then, by means of an auxiliary mechanism provided on the lifting mechanism, for example, a long rod with a hand grip at the top end, the long rod passes through the auxiliary hole 1203 to connect with the second linkage member 502 and pushes the second linkage member 502 to the right as shown in fig. 4d, so as to drive the second locking member 603 to rotate clockwise against the pre-tightening force of the second torsion spring, and at the same time, the second protrusion 6031 exerts a driving force on the first protrusion 6021 to overcome the pre-tightening force of the first torsion spring on the first locking member 602, so that the first protrusion 6021 and the second protrusion 6031 rotate to the mutual abutting position, that is, the internal state of the locking member 6 is changed from fig. 4d to fig. 4c, so that the card slot 601 enters the open state from the closed state.

Then, the battery case 12 is lifted by the lifting mechanism and moves downward, so that the locking pin 1202 is disengaged from the slot 601, and the guide pin 1204 is also disengaged from the guide hole 401, until the whole battery case 12 is separated from the battery case frame. Then, the second linking member 502 is pushed to the right as shown in fig. 4c to drive the second locking member 603 to rotate clockwise against the pre-tightening force of the second torsion spring, so that the first protrusion 6021 engages with the second recess 6032 to restore the locking member 6 to the position shown in fig. 4 b. Finally, the acting force on the supporting plate 7 is released again, so that the supporting plate is driven by the elastic member 8 to rotate reversely to the horizontal position.

Here, the first and second link members 501 and 502 are preferably cross bars. And it is preferable that a plurality of locking members 6 provided to the inner wall of the same center sill 102 of the frame body 1 are alternately connected by the first and second link members 501 and 502, whereby it is possible to simultaneously lock and unlock the plurality of locking members 6 located to the inner wall of the same center sill 102 of the frame body 1.

In addition, although not particularly limited, in the specific embodiment of the present invention, each of the four faces of the inner wall of the center sill 102 of the frame body 1 has 3 guide holes 401, and each of the two facing faces of the inner wall of the center sill 102 of the frame body 1 has 5 locking members 6. The number of guide pins 1204 and lock pins 1202 matches the number of guide holes 401 and lock members 6.

In addition, in this embodiment, the pre-tightening force formed between the first lock 602 and the second lock 603 and the housing 605 is implemented by a torsion spring, but in other embodiments, other structures may be adopted, for example, springs are arranged between the outer side wall of the first lock 602 and the inner wall of the housing 605 and between the outer side wall of the second lock 603 and the inner wall of the housing 605, or even a magnetic driving manner may be implemented, for example, an inner portion of the first lock 602 and an inner portion of the second lock 603 are made of magnetic materials that attract each other, or the inner portion of the first lock 602 and the inner portion of the second lock 603 are coated with magnetic materials that attract each other.

In the present invention, the support member 604 may not be provided, and the support member 604 may be integrated with the second lock member 603, that is, the second lock member 603 may be appropriately shaped so that the bottom thereof has a portion for supporting.

In addition, the height of the frame body 1 is preferably smaller than the length of the frame body 1 and the width of the frame body 1, so that the height of the center of gravity of the battery box frame can be reduced, and the safety in case of long-distance transportation is improved. In addition, the locking member 6 may not have the housing 605, but the first lock 602 and the second lock 603 may be directly rotatably connected to the inner wall of the center sill 102 by screws, for example.

The battery case frame to which the battery case 12 is attached can be fixed to the cross member 11 by screwing the attachment plate 2 of the battery case frame to which the battery case 12 is attached to the cross member 11 with the attachment screws 3. In this embodiment, two opposite side surfaces of the frame body 1 are respectively provided with two mounting plates 2, the mounting plates 2 are provided with mounting holes, the mounting holes are threaded holes, the frame cross beam 11 is also provided with matched threaded holes, and the mounting screws 3 are in threaded connection with the mounting holes on the mounting plates 2 and the threaded holes on the frame cross beam 11. In addition, the frame cross beam 11 is two split sections, and is respectively connected to two ends of the battery box frame. In addition, the utility model discloses the car that needs to trade the electricity outside the heavy truck is applicable to equally, for example car etc..

The utility model has the advantages of, because battery box overall structure is located the chassis below of vehicle, whole focus reduces, increases the high-speed security of traveling of vehicle, and does not occupy driver's cabin back space, gives the packing box space of letting out, multiplicable freight volume. The battery box body is matched with a bottom electricity exchanging operation scene, so that the height space of the electricity exchanging station is saved, the cost is reduced, and the site selection construction of the electricity exchanging station is facilitated. And battery box arranges direction, locking structure, compares in the fixed mode in the bottom of current battery box, and is more reliable and more stable. The battery box body adopts an integrated design, a multi-box combined system is not adopted, and the battery block is directly arranged in a closed cavity defined by the upper cover and the lower box body of the battery box body, so that redundant structural parts are reduced, and the electric quantity and the energy density of the system are improved in the same space. The fixed connection of battery box and frame is close to the middle part, more is favorable to promoting the steadiness of battery box, and the anti-vibration ability is stronger.

The above description is only for the embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, extension, etc. made within the spirit and principle of the present invention are all included in the protection scope of the present invention.

Claims (10)

1. The battery box body is characterized by comprising an upper cover and a lower box body, wherein the upper cover is detachably connected with the lower box body; the upper cover and the lower box body enclose a closed cavity for accommodating a battery block; the periphery of the lower box body is provided with a locking pin, the battery box body frame is provided with a locking component, and the locking pin can enter the battery box body frame along with the battery box body and is fixedly connected with the locking component.

2. The battery case of claim 1, wherein a guide pin is further provided at an outer circumference of the lower case, and the battery case frame has a guide hole through which the guide pin can reciprocate in a vertical direction.

3. The battery case of claim 2, wherein an auxiliary hole is further provided at the outer circumference of the lower case; the auxiliary holes are arranged in the vertical direction.

4. The battery case of claim 3, wherein a stage is provided at a position above a middle portion of an outer periphery of the lower case, and the lock pin, the guide pin, and the auxiliary hole are provided at the stage.

5. The battery box of claim 1, further having a bracket; the support is located the outside of battery piece to with lower box fixed connection.

6. The battery case of claim 5, further comprising a fastening plate; the fastening plate is located on the top surface of the battery block and is connected with the bracket.

7. The battery box body as claimed in claim 6, wherein a plurality of layers of battery blocks are arranged in the closed cavity, a partition plate is arranged between two adjacent layers of battery blocks, and the fastening plate is positioned on the top surface of the top layer of battery block; the two sides of the partition plate are respectively connected with the supports on the outer sides of the two adjacent layers of battery blocks, and the fastening plate is connected with the supports on the outer sides of the top layer of battery blocks.

8. The battery box according to any one of claims 1 to 7, wherein a reinforcing beam is provided on a bottom surface of the lower box.

9. The battery box body according to any one of claims 1-7, further comprising a sealing member, wherein the sealing member is positioned between the upper cover and the lower box body.

10. The battery case of any of claims 1-7, wherein the height of the battery case is less than the length and width of the battery case.

Images