CN115966831A - Heavy vehicle-mounted battery box body, battery pack and heavy vehicle - Google Patents

Abstract

The application discloses heavy on-vehicle battery box, battery package and heavy vehicle, heavy on-vehicle battery box includes: an upper box body and a lower box body; the upper box body and the lower box body are arranged in a laminated manner and are detachably connected; a first containing groove is formed in one side, away from the lower box body, of the upper box body, a second containing groove is formed in one side, facing the upper box body, of the lower box body, and the first containing groove and the second containing groove are used for storing the battery blocks respectively; along the first direction, two sides of the upper box body extend outwards to form a connecting part, and the connecting part is used for being connected with a battery joist of a vehicle body; along first direction, the both sides of box are formed with the stair structure down, and the stair structure is used for the fork to get the battery box, and the first direction is the range upon range of direction of box and lower box on the perpendicular to. Like this, be convenient for through the mode of substep assembly, realize the dismouting of the battery piece in the battery box to and the installation of battery box and automobile body, set up the fork that the stair structure made things convenient for the fork to get simultaneously, avoid the collision among the loading and unloading process.

Description

Heavy vehicle-mounted battery box body, battery pack and heavy vehicle

5 field of the invention

The application belongs to the technical field of vehicles, concretely relates to heavy vehicle-mounted battery box, battery package and heavy vehicle.

Background

0 with the rapid development of new energy technology, heavy vehicles such as mining trucks, light trucks and the like also adopt electricity

The pond package provides power. The battery pack generally comprises a battery box body, a plurality of battery blocks, a controller, a water cooler and other battery accessories, wherein the battery blocks and the battery accessories are arranged in the battery box body, and the battery box body is arranged on a battery supporting beam of a vehicle body so as to supply power for the vehicle. When the battery block is replaced or the battery pack is maintained, the battery pack needs to be disassembled and assembled.

5 because the volume and the weight of the battery pack of the heavy vehicle are large, in order to facilitate the integral transportation of the battery pack,

in the correlation technique, design into whole welded structure with the battery box in the battery package mostly, be equipped with a plurality of chambeies that hold in the battery box, utilize to hold the chamber and accomodate battery piece and battery accessory to and set up the fork and get the structure outside the battery box, so that the fork gets the structure cooperation with the fork, realize the dismouting between whole battery box and the automobile body.

However, the battery case of the related art, which has an integrally welded structure, is inconvenient for the inside of the battery case to be charged

Loading and taking out the pool blocks; in addition, in the installation process of the battery box body and the vehicle body, the fork on the battery box body is easy to collide with the vehicle body, so that potential safety hazards exist.

Disclosure of Invention

5 this application aims at providing a heavy on-vehicle battery box, battery package and heavy vehicle, at least solves

The battery box body of the overall welding structure in the related art is inconvenient for loading and taking out the battery block, and the forking structure on the battery box body is easy to collide with the vehicle body in the installation process, so that one of the problems of potential safety hazards exists.

In order to solve the technical problem, the present application is implemented as follows:

in a first aspect, an embodiment of the present application provides a heavy vehicle-mounted battery box, including: an upper box body and a lower box body;

the upper box body and the lower box body are stacked, and the upper box body is detachably connected with the lower box body;

a first containing groove is formed in one side, away from the lower box body, of the upper box body, a second containing groove is formed in one side, facing the upper box body, of the lower box body, and the first containing groove and the second containing groove are used for storing battery blocks respectively;

along a first direction, two sides of the upper box body extend outwards to form a connecting part, and the connecting part is used for being connected with a battery joist of a vehicle body; along first direction, the both sides of box are formed with the stair structure down, the stair structure is used for the fork to get the battery box, first direction is the perpendicular to go up the box with the range upon range of direction of box down.

Optionally, the lower case comprises: a first lower box body and a second lower box body;

the first lower box body is detachably connected with the upper box body, and one side of the first lower box body, which is far away from the upper box body, is fixedly connected with the second lower box body;

the width of the first lower box body is larger than that of the second lower box body along the first direction, so that the step structure is formed by the first lower box body and the second lower box body;

one side of the first lower box body, which faces the upper box body, is provided with the second accommodating groove, a third accommodating groove is formed in the second lower box body, and the third accommodating groove is used for accommodating battery accessories.

Optionally, the battery case further includes: a fastener;

the upper box body is provided with a first mounting hole, and a second mounting hole is formed in the corresponding position of the first lower box body and the first mounting hole; the fastener wears to locate in proper order first mounting hole with the second mounting hole, go up the box through the fastener with the connection can be dismantled to first box.

Optionally, positioning holes are respectively formed in one side, facing the second lower box body, of two ends of the first lower box body, and the positioning holes are used for being matched with the pin shafts on the fork.

Optionally, one side of the lower box body, which faces the upper box body, is provided with a guide pin, a guide groove is formed in a position of the upper box body, which corresponds to the guide pin, and the guide pin is embedded in the guide groove.

Optionally, the four corners of the lower box body are close to the edges and are respectively provided with the guide pin, one side of the upper box body facing the lower box body is provided with four guide grooves, and each guide pin is embedded in one guide groove.

Optionally, a plurality of first accommodating grooves are formed in the upper box body, and the plurality of first accommodating grooves are arranged at intervals along a first direction; the lower box body is internally provided with a plurality of second accommodating grooves which are arranged at intervals along the first direction.

Optionally, a locking pin is arranged on one side, facing the lower box body, of the connecting portion, a locking hole is arranged at a position, corresponding to the locking pin, of the battery joist, and the locking pin Kong Kajie is arranged in the connecting portion.

In a second aspect, an embodiment of the present application provides a heavy vehicle-mounted battery pack, which includes any one of the above-mentioned heavy vehicle-mounted battery boxes, and a plurality of battery blocks, where the plurality of battery blocks are respectively installed in the heavy vehicle-mounted battery boxes.

In a third aspect, the embodiment of the application provides a heavy vehicle, which comprises the heavy vehicle-mounted battery pack.

In the embodiment of this application, in this application embodiment, including last box and the lower box that can dismantle the connection through setting up the battery box, when the battery piece in the needs battery box carries out the dismouting, can earlier go up box and lower box separation, utilize the mode of hoist and mount to pack into the first storage tank of box and the second storage tank of box down respectively with a plurality of battery pieces in, then will go up box and lower box connection again, realize the equipment of whole battery box. By adopting the battery box body, the battery blocks in the battery box body can be disassembled and assembled in a step-by-step assembling mode, and the battery box body and the vehicle body can be installed. Like this, not only make things convenient for the loading and unloading operation of battery piece in the battery box, reduce the battery piece in the installation and the battery box between the friction with collide with. Meanwhile, the step structures are formed on the two sides of the lower box body, and the fork is specially used for forking operation of the whole battery box body, so that unnecessary collision between the battery box body and the vehicle body in the loading and unloading process can be avoided, and potential safety hazards are reduced.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is one of schematic structural diagrams of a heavy vehicle-mounted battery box according to an embodiment of the application;

FIG. 2 is a second schematic structural diagram of a heavy-duty vehicle-mounted battery box according to an embodiment of the present application;

FIG. 3 is a schematic structural diagram of an upper case according to an embodiment of the present application;

FIG. 4 is an enlarged view of section A circled in FIG. 3 according to an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a lower box according to an embodiment of the present application;

FIG. 6 is an enlarged view of section B circled in FIG. 5 according to an embodiment of the present application;

FIG. 7 is an enlarged view of section C circled in FIG. 5 according to an embodiment of the present application;

FIG. 8 is a schematic diagram of a heavy vehicle battery box body connected with a vehicle body according to an embodiment of the application.

Reference numerals:

100. a battery case; 110. an upper box body; 111. a first accommodating groove; 112. a first mounting hole; 113. a guide groove; 114. a connecting portion; 115. a locking pin; 120. a lower box body; 1201. a second accommodating groove; 1202. a step structure; 1203. a guide pin; 121. a first lower box body; 1211. a second mounting hole; 1212. positioning holes; 122. a second lower box body; 1221. a third accommodating groove; 200. a battery block; 210. a battery accessory; 300. a battery joist.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The features of the terms first and second in the description and in the claims of the present application may explicitly or implicitly include one or more of those features. In the description of the present application, "a plurality" means two or more unless otherwise specified. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in this application will be understood to be a specific case for those of ordinary skill in the art.

The heavy vehicle-mounted battery box, the battery pack and the heavy vehicle provided by the embodiment of the application are described in detail through specific embodiments and application scenarios thereof with reference to the accompanying drawings.

As shown in fig. 1, 3 and 5, a heavy vehicle-mounted battery case 100 according to some embodiments of the present application includes: an upper case 110 and a lower case 120; the upper box body 110 and the lower box body 120 are stacked, and the upper box body 110 and the lower box body 120 are detachably connected; a first containing groove 111 is formed in one side, away from the lower box body 120, of the upper box body 110, a second containing groove 1201 is formed in one side, facing the upper box body 110, of the lower box body 120, and the first containing groove 111 and the second containing groove 1201 are used for storing the battery blocks 200 respectively; along the first direction, two sides of the upper case 110 extend outwards to form a connection part 114, and the connection part 114 is used for being connected with a battery joist 300 of a vehicle body; step structures 1202 are formed on both sides of the lower case 120 along a first direction, the first direction being perpendicular to the stacking direction of the upper case 110 and the lower case 120, the step structures 1202 being used for the fork taking battery case 100.

In the embodiment of the present application, by providing the battery box 100 including the upper box 110 and the lower box 120 detachably connected, when the battery blocks 200 in the battery box 100 need to be disassembled, the upper box 110 and the lower box 120 can be separated first, the plurality of battery blocks 200 are respectively loaded into the first containing groove 111 of the upper box 110 and the second containing groove 1201 of the lower box 120 in a hoisting manner, and then the upper box 110 and the lower box 120 are connected, so as to assemble the whole battery box 100. By adopting the battery box 100, the battery block 200 in the battery box 100 can be disassembled and assembled in a step-by-step assembly mode, and the battery box 100 and a vehicle body can be installed. Therefore, the battery block 200 in the battery box body 100 can be conveniently assembled and disassembled, and the friction and the collision between the battery block 200 and the battery box body 100 in the installation process are reduced. Meanwhile, the step structures 1202 are formed on the two sides of the lower box body 120 and are specially used for fork taking operation of the whole battery box body 100 by a fork, unnecessary collision between the battery box body 100 and a vehicle body in the loading and unloading process can be avoided, and potential safety hazards are reduced.

Specifically, the battery case 100 in the embodiment of the present application may be used for a heavy-duty vehicle-mounted battery pack, which is formed by accommodating a plurality of battery blocks 200 and battery fittings 210 in the battery case 100, and is used to be connected to a battery joist 300 of a vehicle body to fix the entire battery pack to the vehicle body, thereby providing a power source for the vehicle.

Wherein, battery box 100 can include last box 110 and lower box 120, and along vertical direction, go up box 110 and set up in the top of box 120 down, go up and can dismantle between box 110 and the lower box 120 and connect, and the one side that last box 110 kept away from box 120 down is equipped with first storage tank 111, also sets up first storage tank 111 at the upside of last box 110, and the opening of first storage tank 111 faces up. Correspondingly, a second accommodating groove 1201 is formed in one side of the lower box body 120 facing the upper box body 110, that is, the second accommodating groove 1201 is formed in the upper side of the lower box body 120, and an opening of the second accommodating groove 1201 faces upward.

In a specific application, when the battery blocks 200 in the battery box 100 need to be replaced, the upper box 110 and the lower box 120 may be disassembled, and then the battery blocks 200 in the first receiving groove 111 of the upper box 110 and the battery blocks 200 in the second receiving groove 1201 of the lower box 120 may be replaced respectively. Moreover, since the openings of the first receiving groove 111 and the second receiving groove 1201 are both upward, the battery block 200 can be conveniently hung, taken, and assembled in the actual replacement operation of the battery block 200.

It should be noted that, because the battery pack capacity of a heavy vehicle is large, a plurality of battery blocks 200 are generally mounted in the heavy vehicle-mounted battery box 100, and each battery block 200 has a heavy weight and requires the use of auxiliary tools during replacement.

It can be understood that, the battery box 100 in the prior art generally adopts an integral welding structure, the battery box 100 is provided with a plurality of battery accommodating cavities, and due to structural limitation, the openings of the battery accommodating cavities generally face the front side surface, the rear side surface, the left side surface and the right side surface of the battery box 100, therefore, when the battery block 200 is replaced, a fork taking mode needs to be adopted, the battery block 200 is horizontally pushed into or pulled out of the battery accommodating cavities after being fork taken, collision or friction between the battery block 200 and the battery box 100 is easily caused in the process, a coating on the surface of the battery block 200 is damaged, and the service life of the battery block 200 is influenced.

By adopting the battery case 100 of the present application, the openings of the accommodating grooves in the upper case 110 and the lower case 120 are all upward. Therefore, when the actual battery is replaced, the battery blocks 200 in the upper box 110 and the lower box 120 can be assembled or disassembled respectively in a hoisting mode, so that collision and friction between the battery blocks 200 and the battery box 100 in the assembling process can be avoided to the greatest extent, the surface quality of the battery blocks 200 can be protected, and the assembling efficiency is improved.

Further, along the horizontal direction, the two sides of the upper box 110 are respectively provided with a connecting portion 114 extending outwards, the connecting portion 114 is used for connecting with the battery joist 300 of the vehicle body, and meanwhile, the two sides of the lower box 120 are provided with a step structure 1202, and the step structure 1202 is used for the fork to take out the battery box 100. Wherein the step structure 1202 and the connection portion 114 are disposed on the same side of the battery case 100, so as to facilitate the actual disassembly and assembly operation and optimize the overall structure of the battery case 100.

In a specific application, the whole battery pack needs to be mounted on or dismounted from a vehicle body, so that the battery box 100 needs to be connected with the vehicle body, and the battery box 100 needs to be forked. In the prior art, the battery box 100 is generally of an integral welding structure, and separate fork taking structures are welded at two sides of the battery box 100 of the welding structure, so that the battery box 100 is taken by a fork through the fork taking structures, and the battery box 100 is assembled and disassembled. However, in the process of assembling and disassembling the battery box 100, the separately provided forking structure is likely to collide with the vehicle body, and a large potential safety hazard exists.

In the battery box 100 of the embodiment of the present application, step structures 1202 are formed on two sides of the lower box 120, and as shown in fig. 1, a portion of the dashed frame at the step structures 1202 indicates a forking position of the fork. Through setting up stair structure 1202 be used for with the fork cooperation, make things convenient for the fork to get the operation to the fork of battery box 100, need not set up the fork alone in the battery box 100 outside like this and get the structure, when having avoided utilizing the fork to get battery box 100 and assemble, take place unnecessary collision with the automobile body, reduced the potential safety hazard.

Optionally, as shown in fig. 3, a plurality of first receiving grooves 111 are formed in the upper case 110, the plurality of first receiving grooves 111 are arranged at intervals along a first direction, a plurality of second receiving grooves 1201 are formed in the lower case 120, and the plurality of second receiving grooves 1201 are arranged at intervals along the first direction.

In the embodiment of the present application, a plurality of first receiving grooves 111 are formed in the upper case 110, and a plurality of second receiving grooves 1201 are formed in the lower case 120, so that the internal space of the battery case 100 can be fully utilized to load more battery packs 200, thereby meeting the requirement of a heavy vehicle for a large-capacity battery pack.

In a specific application, by providing a plurality of first receiving grooves 111 arranged in parallel at intervals along the first direction in the upper case 110 and a plurality of second receiving grooves 1201 arranged in parallel at intervals along the first direction in the lower case 120, more battery blocks 200 can be loaded in the battery case 100, so as to improve the capacitance of the whole battery pack, and the plurality of first receiving grooves 111 and the plurality of second receiving grooves 1201 are arranged in the same direction, which helps to optimize the structure of the whole battery case 100 and reduce the vehicle body space occupied by the battery case 100.

It can be understood that the openings of the plurality of first receiving grooves 111 and the plurality of second receiving grooves 1201 are both disposed upward, which also facilitates the assembly operation of the battery block 200 by using a hoisting manner.

In some embodiments, a plurality of first receiving grooves 111 may be disposed in an array on a side of the upper case 110 away from the lower case 120, and a plurality of second receiving grooves 1201 may be disposed in an array on a side of the lower case 120 toward the upper case 110, so that more battery packs 200 may be loaded using the battery case 100.

It should be noted that the number of the first accommodating grooves 111 arranged in the upper box 110 and the number of the second accommodating grooves 1201 arranged in the lower box 120 may be set according to actual needs, which is not limited in the embodiment of the present application.

In some embodiments, a detachable reinforcing structure may be disposed at an opening of each first receiving groove 111 in the upper case 110, and in practical applications, after the battery block 200 in the first receiving groove 111 is replaced, the reinforcing structure is mounted at the opening of the first receiving groove 111, so that the limitation on the battery block 200 can be enhanced, and the overall strength of the upper case 110 can be increased.

It is understood that after the battery block 200 is received in the first receiving groove 111 or the second receiving groove 1201, the battery block 200 may be fixed to the battery case 100 by using screws or the like to fix the battery block 200.

Alternatively, as shown in fig. 5, the lower case 120 includes: a first lower case 121 and a second lower case 122; the first lower box body 121 is detachably connected with the upper box body 110, and one side of the first lower box body 121 far away from the upper box body 110 is fixedly connected with the second lower box body 122; in the first direction, the width of the first lower case 121 is greater than the width of the second lower case 122 to form a stepped structure 1202 by the first lower case 121 and the second lower case 122; a second receiving groove 1201 is formed in a side of the first lower case 121 facing the upper case 110, a third receiving groove 1221 is formed in the second lower case 122, and the third receiving groove 1221 is used for receiving the battery assembly 210.

In the embodiment of the present application, the lower case 120 includes the first lower case 121 and the second lower case 122, and the width of the first lower case 121 is set to be greater than the width of the second lower case 122 in the first direction, so that the step structure 1202 is formed by the first lower case 121 and the second lower case 122 for the fork-taking operation. In addition, a second receiving groove 1201 with an upward opening may be provided in the first lower case 121 to receive the battery block 200, and a third receiving groove 1221 may be provided in the second lower case 122 to receive the battery accessory 210.

Specifically, the first lower box 121 is disposed above the second lower box 122, and the first lower box 121 and the second lower box 122 are fixedly connected to form an integrated structure, so that the lower box 120 can be conveniently transported integrally. By setting the widths of the first lower case 121 and the second lower case 122 in the horizontal direction such that the width of the first lower case 121 is greater than the width of the second lower case 122, the step structure 1202 may be formed at both sides of the second case. As shown in fig. 1, the lower case 120 formed by the first lower case 121 and the second lower case 122 has a T-shaped structure as a whole.

The second accommodating groove 1201 with the upward opening is formed in the first lower case 121, and is used for accommodating the battery block 200, so that the battery block 200 can be conveniently assembled and disassembled in a hoisting manner. A third receiving groove 1221 is formed in the second lower case 122 to receive a battery accessory 210, such as a controller, a water cooler, a junction box, and the like.

It is understood that the opening of the third container 1221 may face the side surface of the second lower case 122, and since the weight of the battery assembly 210 is generally light, the battery assembly may be disassembled in a forking manner, and thus is not limited by the opening position of the container. Like this, adopt battery box 100 of this application, can rationally utilize the structural space in the battery box 100 to accomodate battery and battery accessory 210, ensured the installation convenience and the security of battery piece 200 and battery accessory 210 in the battery box 100.

Optionally, as shown in fig. 3 to 6, the battery case 100 further includes: fasteners (not shown); the upper case 110 has a first mounting hole 112, and the first lower case 121 has a second mounting hole 1211 at a position corresponding to the first mounting hole 112; the fastening members are sequentially inserted into the first mounting hole 112 and the second mounting hole 1211, and the upper casing 110 is detachably coupled to the first lower casing 121 by the fastening members.

In the embodiment of the present application, the fastening member is disposed through the first mounting hole 112 of the upper case 110 and the second mounting hole 1211 of the lower case 120, so as to detachably connect the upper case 110 and the lower case 120, and when the battery pack 200 needs to be replaced, the upper case 110 and the lower case 120 are separated from each other, and the fastening member is used to connect the upper case 110 and the lower case 120 into an integrated structure, which facilitates assembly with a vehicle body.

Specifically, the fastener may adopt a bolt and nut matching structure, and the bolt is threaded with the nut after sequentially passing through the first mounting hole 112 and the second mounting hole, so that the nut is screwed to lock and disassemble the bolt.

In addition, the fastening member may also be a screw structure, wherein an inner wall of the first mounting hole 112 and an inner wall of the second mounting hole 1211 are respectively provided with an inner thread, and an outer thread is provided on an outer side of the screw structure, and during the assembling process, the screw structure is screwed into the first mounting hole 112 and the second mounting hole 1211 to fix the upper case 110 and the lower case 120.

In some embodiments, a reinforcing plate may be disposed around the first mounting hole 112 of the upper case 110, and the reinforcing plate is provided with a through hole adapted to the first mounting hole 112, and the through hole is disposed coaxially with the first mounting hole 112 to reinforce the case structure around the first mounting hole 112. Similarly, a reinforcing plate may be provided around the second mounting hole 1211, and a through hole of the reinforcing plate may be provided coaxially with the second mounting hole 1211 to reinforce the box structure around the second mounting hole 1211.

In some embodiments, the detachable connection between the upper case 110 and the lower case 120 may be implemented by using a locking structure, the locking structure may include a locking member and a fitting member, the locking member is disposed on one of the upper case 110 and the lower case 120, the fitting member is disposed on the other of the upper case 110 and the lower case 120, and the detachable connection between the upper case 110 and the lower case 120 may be implemented by the locking fit of the locking member and the fitting member.

Alternatively, as shown in fig. 7, the two ends of the first lower case 121 are respectively provided with a positioning hole 1212 facing the side of the second lower case 122, and the positioning holes 1212 are used for matching with the pins on the forks.

In this embodiment, the positioning holes 1212 are formed at the two ends of the first lower case 121, so that the pins on the fork are matched, alignment and positioning in the operation process of the fork are facilitated, operation accuracy is increased, and operation efficiency is improved.

The positions of the positioning holes 1212 at the two ends of the first lower case 121 correspond to the positions of the step structures 1202, so as to be matched with the pins on the forks in the fork taking process. It should be noted that the specific setting position and the setting number of the positioning holes 1212 may be set according to actual needs, and this is not limited in this embodiment of the application.

Alternatively, as shown in fig. 6, a guide pin 1203 is disposed on one side of the lower case 120 facing the upper case 110, a guide groove 113 is disposed at a position of the upper case 110 corresponding to the guide pin 1203, and the guide pin 1203 is embedded in the guide groove 113. In this application embodiment, one side of the upper case body 110 of the lower case body 120 is provided with the guide pin 1203, the corresponding position of the upper case body 110 is provided with the guide groove 113, and the positioning effect between the upper case body 110 and the lower case body 120 in the assembling process can be realized through the cooperation of the guide pin 1203 and the guide groove 113, so that the assembling accuracy of the battery case body 100 is improved.

Alternatively, as shown in fig. 5, the lower case 120 is provided with guide pins 1203 at four corners close to the edges, the upper case 110 is provided with four guide slots 113 at one side facing the lower case 120, and each guide pin 1203 is embedded in one guide slot 113.

In the embodiment of the present application, by providing the guide pins 1203 on the side of the lower case 120 facing the upper case 110 near the edges at four corners, the guide slots 113 are provided on the upper case 110 corresponding to the guide pins 1203, and each guide pin 1203 is embedded in one of the guide slots 113. Therefore, through the matching of the four guide pins 1203 and the four guide grooves 113, not only can a guiding effect be realized, but also a limiting effect can be realized through the two adjacent guide pins 1203, and the limiting effect of the upper box body 110 and the lower box body 120 along the horizontal direction is realized.

It is understood that the lower case 120 has a generally rectangular or square structure, and the side of the lower case 120 facing the upper case 110 has four corners, and the guide pins 1203 are respectively disposed at the four corners, and the guide pins 1203 are disposed close to the edges so as to avoid the second accommodating grooves 1201. Accordingly, four guide grooves 113 are also provided on the side of the upper casing 110 facing the lower casing 120, such that each guide groove 113 is engaged with one guide pin 1203 to achieve a guiding function.

And the guide pins 1203 at two adjacent corners can realize the limiting effect on one direction, and then the four guide pins 1203 can realize the limiting effect on the upper box body 110 and the lower box body 120 along the horizontal direction, and the dislocation between the upper box body 110 and the lower box body 120 is placed, so that the assembling precision of the battery box body 100 is improved.

In some embodiments, the structure of the guide pin 1203 may be a cone, a cylinder, a triangular prism, or other structures, and the structure of the guide groove 113 is adapted to the structure of the guide pin 1203.

Alternatively, as shown in fig. 1 and 2, a locking pin 115 is disposed on one side of the connecting portion 114 facing the lower case 120, a locking hole is disposed at a position of the battery joist 300 corresponding to the locking pin 115, and the locking pin 115 and the lock Kong Kajie are disposed.

In the embodiment of the present application, the locking pin 115 extending toward the lower case 120 is disposed at the connecting portion 114 at two sides of the upper case 110, and accordingly, a locking hole is disposed at a position of the battery joist 300 corresponding to the locking pin 115, so that the locking pin 115 and the locking hole are engaged with each other, and the whole battery case 100 is conveniently fixed on the battery joist 300 of the vehicle body, thereby achieving detachable connection between the battery case 100 and the vehicle body.

Of course, after the battery box 100 is mounted to the vehicle body, the battery box 100 and the vehicle body may be further fixed by using screws or bolts, so as to increase the mounting firmness of the battery box 100 and the vehicle body.

Optionally, as shown in fig. 1, the embodiment of the present application further provides a heavy vehicle-mounted battery pack, where the battery pack may include the heavy vehicle-mounted battery box 100 in the above-described embodiment, and a plurality of battery blocks 200, where the plurality of battery blocks 200 are respectively mounted in the heavy vehicle-mounted battery box 100.

In this application embodiment, heavy on-vehicle battery package can include battery box 100, wherein, battery box 100 is including last box 110 and lower box 120 that can dismantle the connection, when needing to carry out the dismouting to the battery piece 200 in the battery box 100, can separate last box 110 with lower box 120 earlier, utilize the mode of hoist and mount to pack into the first storage tank 111 of last box 110 and the second storage tank 1201 of lower box 120 respectively with a plurality of battery pieces 200, then connect last box 110 and lower box 120, realize the equipment of whole battery box 100. By adopting the battery box 100, the battery block 200 in the battery box 100 can be disassembled and assembled in a step-by-step assembly mode, and the battery box 100 and a vehicle body can be installed. Therefore, the battery block 200 in the battery box body 100 can be conveniently assembled and disassembled, and the friction and the collision between the battery block 200 and the battery box body 100 in the installation process are reduced. Meanwhile, the step structures 1202 are formed on the two sides of the lower box body 120 and are specially used for fork taking operation of the whole battery box body 100 by a fork, unnecessary collision between the battery box body 100 and a vehicle body in the loading and unloading process can be avoided, and potential safety hazards are reduced.

The upper case 110 may be provided with a first receiving groove 111 opened upward, and the lower case 120 may be provided with a second receiving groove 1201 opened upward. In specific applications, the battery block 200 may be lifted and placed into the first receiving groove 111 and the second receiving groove 1201, or the battery block 200 to be charged may be lifted and placed out of the first receiving groove 111 and the second receiving groove 1201. Then, the upper case 110 is fixed to the upper side of the lower case 120, thereby completing the assembly of the battery pack.

In some embodiments, the heavy vehicle battery pack may further include: the water cooling device comprises a water cooling machine, a controller and a junction box, wherein the controller is electrically connected with the battery and used for controlling the battery to supply power, the water cooling machine is used for cooling the battery block 200, the junction box can be respectively electrically connected with the controller and the battery block 200, and meanwhile, the junction box can be connected with a vehicle body power supply system so as to connect the electricity of the battery block 200 into the vehicle body power supply system through the junction box.

In some embodiments, a third receiving groove 1221 is further formed in the lower case 120, and the water cooler, the controller and the junction box may be respectively received in the third receiving groove 1221.

Optionally, as shown in fig. 8, an embodiment of the present application further provides a heavy vehicle, where the heavy vehicle includes the heavy vehicle-mounted battery pack in the above-described embodiment.

In this embodiment, a battery pack in a heavy vehicle is provided with a battery box 100, wherein the battery box 100 includes an upper box 110 and a lower box 120 that are detachably connected, when a battery block 200 in the battery box 100 needs to be disassembled and assembled, the upper box 110 and the lower box 120 can be separated first, a plurality of battery blocks 200 are respectively installed in a first accommodating groove 111 of the upper box 110 and a second accommodating groove 1201 of the lower box 120 in a hoisting manner, and then the upper box 110 and the lower box 120 are connected to realize the assembly of the whole battery box 100. By adopting the battery box 100, the battery block 200 in the battery box 100 can be disassembled and assembled in a step-by-step assembly mode, and the battery box 100 and a vehicle body can be installed. Therefore, the battery block 200 in the battery box body 100 can be conveniently assembled and disassembled, and the friction and the collision between the battery block 200 and the battery box body 100 in the installation process are reduced. Meanwhile, the step structures 1202 are formed on the two sides of the lower box body 120 and are specially used for fork taking operation of the whole battery box body 100 by a fork, unnecessary collision between the battery box body 100 and a vehicle body in the loading and unloading process can be avoided, potential safety hazards are reduced, and the use safety of the vehicle is improved.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. The utility model provides a heavy on-vehicle battery box which characterized in that includes: an upper box body and a lower box body;

the upper box body and the lower box body are stacked, and the upper box body and the lower box body are detachably connected;

a first containing groove is formed in one side, away from the lower box body, of the upper box body, a second containing groove is formed in one side, facing the upper box body, of the lower box body, and the first containing groove and the second containing groove are used for storing battery blocks respectively;

along a first direction, two sides of the upper box body extend outwards to form a connecting part, and the connecting part is used for being connected with a battery joist of a vehicle body; along first direction, the both sides of box are formed with the stair structure down, the stair structure is used for the fork to get the battery box, first direction is the perpendicular to go up the box with the range upon range of direction of box down.

2. The heavy vehicle battery box of claim 1, wherein the lower box comprises: a first lower box body and a second lower box body; the first lower box body is detachably connected with the upper box body, and one side of the first lower box body, which is far away from the upper box body, is fixedly connected with the second lower box body;

the width of the first lower box is greater than that of the second lower box along the first direction, so that the step structure is formed by the first lower box and the second lower box;

the first lower box body is provided with a second containing groove on one side facing the upper box body, a third containing groove is formed in the second lower box body, and the third containing groove is used for containing battery accessories.

3. The heavy duty vehicle battery case of claim 2, further comprising: a fastener;

the upper box body is provided with a first mounting hole, and a second mounting hole is formed in the corresponding position of the first lower box body and the first mounting hole; the fastener wears to locate in proper order first mounting hole with the second mounting hole, go up the box through the fastener with first box can dismantle the connection.

4. The heavy-duty vehicle-mounted battery box body according to claim 2, wherein both ends of the first lower box body are respectively provided with a positioning hole at one side facing the second lower box body, and the positioning holes are used for being matched with the pin shafts on the fork.

5. The heavy vehicle-mounted battery box body as claimed in claim 1, wherein a guide pin is arranged on one side of the lower box body facing the upper box body, a guide groove is arranged on the upper box body corresponding to the guide pin, and the guide pin is embedded in the guide groove.

6. The heavy vehicle-mounted battery box body as claimed in claim 5, wherein the guide pins are respectively arranged at four corners of the lower box body close to the edges, and four guide grooves are arranged at one side of the upper box body facing the lower box body, and each guide pin is embedded in one guide groove.

7. The heavy vehicle-mounted battery box body according to claim 1, wherein a plurality of first accommodating grooves are formed in the upper box body, and are arranged at intervals along the first direction; the lower box body is internally provided with a plurality of second accommodating grooves which are arranged at intervals along the first direction.

8. The heavy vehicle-mounted battery box body as claimed in claim 1, wherein a locking pin is arranged on one side of the connecting part facing the lower box body, a locking hole is arranged at a position of the battery joist corresponding to the locking pin, and the locking pin Kong Kajie are arranged.

9. A heavy vehicle-mounted battery pack, characterized by comprising the heavy vehicle-mounted battery box body of any one of claims 1 to 8, and a plurality of battery blocks, wherein the battery blocks are respectively mounted in the heavy vehicle-mounted battery box body.

10. A heavy vehicle comprising the heavy vehicle-mounted battery pack of claim 9.

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