CN216928810U - Battery pack and helicopter - Google Patents

Abstract

The embodiment of the application provides a battery pack and a helicopter. The battery pack comprises a single battery and a shell structure, wherein the shell structure comprises an upper shell, a lower shell, a fastening mechanism and a baffle, and the battery pack further comprises a bearing mechanism, an electrode terminal, a wiring assembly and an electrode insulation grid. The embodiment of the application can restrict mutual drunkenness extrusion between the single batteries through the baffle, and simultaneously, the upper shell and the lower shell can be detachably connected and pressed at two ends of a plurality of single batteries through the fastening mechanism, so that the single batteries can be protected from impact collision, and a plurality of single batteries are fixed firmly and can be conveniently disassembled and assembled. In addition, the bearing part of the whole battery pack is stressed more uniformly through the bearing mechanism, and the firmness of the battery pack can be further improved. In addition, a plurality of single batteries are connected in series through the electrode terminals and the wiring components, so that the problems of short circuit or broken circuit and the like of the electrode connecting wires can be avoided, and the electrode insulation grids are arranged outside the wiring components and the electrode terminals, so that the electrode insulation protection of the battery pack is realized.

Description

Battery pack and helicopter

Technical Field

The application relates to the technical field of unmanned aerial vehicles, especially relates to a group battery and helicopter.

Background

This section provides background information related to the present application and is not necessarily prior art.

At present, a single battery is composed of a plurality of single batteries, and the driving capability of the single battery is limited, so in practical application, in order to provide sufficient driving force for the electric bicycle, a plurality of single batteries need to be combined to form a power battery pack with high driving capability.

In the related art, the battery pack mainly takes the following form: the battery pack is composed of a plurality of batteries, the battery pack is accommodated by a nonmetallic shell, the storage batteries are connected through a conductive cable, the conductive cable is fixed with an electrode through a screw, and the insulation protection of the electrode is insulated by covering the insulating cable with a rubber sleeve. Although the structure is widely applied, the structure has the following defects: 1) the storage battery is not firm in fixation and inconvenient to assemble and disassemble; 2) the conductive cable is not firmly fixed, short circuit and open circuit are easy to occur when the cable is disassembled and assembled, and 3) the electrode insulation protection is not reliable.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the application is to provide a group battery and helicopter for at least, solve the fixed insecure and inconvenient problem of dismouting of battery that the group battery exists among the correlation technique. In order to realize the purpose, the specific technical scheme is as follows:

an embodiment of the first aspect of this application provides a group battery, including a plurality of battery cells and shell structure, shell structure includes casing, lower casing, fastening device and baffle, it is located to go up the casing the top of casing just down go up the casing with the casing passes through fastening device can dismantle to link together down, go up the casing and/or be provided with the baffle in the casing down, just the baffle will go up the casing and/or the casing is split into a plurality of accommodation districts respectively down, and is a plurality of battery cells place a plurality of correspondingly in the accommodation district.

According to the group battery in the embodiment of the application, shell structure includes the casing, the casing down, fastening device and baffle, go up the casing and can dismantle through fastening device between the casing and link together down, go up the internal baffle that sets up of casing and/or inferior valve, the baffle is split into a plurality of holding districts respectively with last casing and/or inferior valve casing, a plurality of battery cells set up in a plurality of holding districts correspondingly, the baffle can restrict the extrusion of beating each other between the battery cell, protect the battery cell and avoid the impact collision, and simultaneously, go up casing and the lower compact both ends at a plurality of battery cell of casing, can make a plurality of battery cells firmly be fixed in between casing and the lower casing from this. In addition, the upper shell and the lower shell are detachably connected together through the fastening mechanism, so that the disassembly and assembly of the plurality of single batteries can be facilitated. In summary, the battery pack of the embodiment of the present application solves the problems of the battery pack in the related art that the battery is not firm in fixation and inconvenient in disassembly and assembly.

In addition, according to the battery pack of the embodiment of the present application, the following additional technical features may also be provided:

in some embodiments of this application, fastening device is including setting up a plurality of first interface structures on the periphery wall of last casing correspond the setting and are in a plurality of second interface structures on the periphery wall of casing down to and set up corresponding from top to bottom first interface structure with spliced pole between the second interface structure, the both ends of spliced pole stretch into respectively in first interface structure and the second interface structure, the both ends of spliced pole respectively through the fastener connect in first interface structure and the second interface structure.

In some embodiments of this application, shell structure still includes the apron board, the apron board encloses to be established a plurality of battery cells's outside, the internal surface of apron board with the battery cell laminating, the surface of apron board with go up the casing and laminate down the casing, the upper end of apron board with go up the casing joint, the lower extreme of apron board with casing joint down.

In some embodiments of this application, still include bearing mechanism, bearing mechanism includes two load poles, two brackets and one or more bearing strip, two the load pole sets up respectively the both sides that shell structure is relative, two the bracket sets up respectively shell structure with the both sides that the load pole is adjacent, the bracket with shell connection down, any one the one end of bracket with one of them the load pole is connected just the other end and the other one of bracket the load pole is connected, any one the bearing strip sets up the bottom of casing down and to the both sides that the casing is relative extend down, just one end and one of them the load pole is connected, the other end and the other one of bearing strip the load pole is connected.

In some embodiments of the present application, the load-bearing rod is a metal pipe, bolt holes are formed at two ends of the load-bearing rod, bosses are formed at two sides of the bracket, a groove and a through hole are formed in the middle of each boss, and a bolt passes through the through hole and is fixedly connected to the bolt holes; the two ends of the bearing strip are in a shape with through holes; the bottom of bracket is provided with the auricle, the upper surface of auricle with the lower surface laminating of casing down, the inside wall of bracket be provided with the card platform structure of the outside wall looks adaptation of casing down.

In some embodiments of the present application, the lower surface of the lower case is provided with a plurality of limiting protrusions adapted to the bearing strip, and the limiting protrusions are configured to prevent the bearing strip from moving.

In some embodiments of the present application, the battery pack further includes two electrode terminals and a wiring assembly, each of the unit cells has a positive terminal and a negative terminal, a plurality of opposite terminal groups are formed between the unit cells, each of the opposite terminal groups includes one of the positive terminal of the unit cell and the negative terminal of another unit cell adjacent thereto, two of the electrode terminals are disposed between the positive terminal and the negative terminal in the opposite terminal group, and the rest of the positive terminal and the negative terminal in the opposite terminal group are connected through the wiring assembly, the wiring assembly includes an electrode overlapping plate and two screws fitted to both ends of the electrode overlapping plate, and the two screws are respectively connected with the positive terminal and the negative terminal in the opposite terminal group.

In some embodiments of the present application, further comprising an electrode insulation grid provided both outside the wiring member and outside the electrode terminal; the electrode insulation grid is connected to the upper shell through a buckle assembly, the buckle assembly comprises a groove structure arranged on the upper shell and a protruding structure arranged on the electrode insulation grid, and the protruding structure is matched with the groove structure; and insulating sealant is poured into the electrode insulating grid.

In some embodiments of the present application, a plurality of the receiving areas are provided with shock absorbing pads on the surface.

An embodiment of a second aspect of the present application provides a helicopter comprising a battery pack as described in any of the embodiments above.

According to the helicopter of the embodiment of the application, the group battery includes a plurality of battery cells and shell structure, shell structure includes the casing, lower casing, fastening device and baffle, the baffle will be gone up the casing and/or the casing is cut apart into a plurality of holding districts respectively down, a plurality of battery cells set up in a plurality of holding districts correspondingly, the baffle can restrict the extrusion of beating each other between the battery cell, protection battery cell avoids the impact collision, and simultaneously, go up casing and lower casing pressure and compress tightly at a plurality of battery cell's both ends, it is firm to make a plurality of battery cell be fixed in between casing and the lower casing from this, in addition, the baffle can play the effect of strengthening rib, the structure firm nature of casing and/or lower casing is gone up in the improvement, thereby the fastness of reinforcing group battery. In addition, the upper shell and the lower shell are detachably connected together through a fastening mechanism, so that the disassembly and assembly of the plurality of single batteries can be facilitated. Compared with the battery pack in the related technology, the battery pack on the helicopter in the embodiment of the application has the advantages of simple and reliable structure, convenience in combined use, good safety and maintainability and the like, the weight and the manufacturing cost of the helicopter can be greatly reduced, and the stability and the safety of the helicopter can be improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other embodiments can be obtained by using the drawings without creative efforts.

Fig. 1 is a schematic structural view of a battery pack in an embodiment of the present application;

fig. 2 is a schematic structural diagram of a battery pack in another view according to the embodiment of the present application;

fig. 3 is a schematic structural view of an upper case of a battery pack according to an embodiment of the present application;

fig. 4 is a schematic structural view of a lower case of the battery pack according to the embodiment of the present application;

fig. 5 is a schematic view showing the construction of a first type of terminal assembly and an electrode insulation grid of a battery pack according to an embodiment of the present application;

fig. 6 is a schematic structural view of a second type of wiring member and an electrode insulation grid of a battery pack in an embodiment of the present application;

fig. 7 is a schematic view showing the structure of a terminal and an electrode insulation grid of a battery pack according to an embodiment of the present application;

fig. 8 is a schematic structural view of a bracket of a battery pack in an embodiment of the present application.

The reference symbols in the drawings denote the following:

100-a battery pack; 110-a single cell;

120-a housing structure; 121-an upper shell; 1211 — connecting vias; 122-a lower housing; 1221-a limit bump; 123-a fastening mechanism; 1231-a first interface structure; 1232 — a second interface structure; 1233-connecting column; 124-baffle plate; 125-a holding area; 126-containment sheets;

130-a load bearing mechanism; 131-a load bar; 132-a bracket; 1321-boss; 1322-grooves; 1323-via; 1324-ear; 1325-cassette configuration; 1326-reinforcing ribs; 1327-threaded hole; 133-a load-bearing bar;

140-electrode terminals; 150-a wiring assembly; 151-electrode strap; 152-a screw; 160-electrode insulation grid.

Detailed Description

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and it is also obvious for a person skilled in the art to obtain other embodiments according to the drawings.

For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the description herein are intended to be within the scope of the present disclosure.

As shown in fig. 1, 3, and 4, an embodiment of the first aspect of the present application provides a battery pack 100. This group battery 100 includes a plurality of battery cells 110 and shell structure 120, shell structure 120 includes casing 121, lower casing 122, fastening device 123 and baffle 124, go up casing 121 and be located the top of casing 122 down and go up casing 121 and lower casing 122 and pass through fastening device 123 and can dismantle the connection together, go up casing 121 and/or be provided with baffle 124 in the casing 122 down, and baffle 124 will go up casing 121 and/or lower casing 122 and divide into a plurality of accommodation areas 125 respectively, a plurality of battery cells 110 are placed in a plurality of accommodation areas 125 correspondingly.

According to the battery pack 100 in the embodiment of the present application, the housing structure 120 includes an upper housing 121, a lower housing 122, a fastening mechanism 123 and a baffle 124, the upper housing 121 and the lower housing 122 are detachably connected together by the fastening mechanism 123, the baffle 124 is disposed in the upper housing 121 and/or the lower housing 122, the baffle 124 divides the upper housing 121 and/or the lower housing 122 into a plurality of receiving areas 125, the plurality of unit batteries 110 are correspondingly disposed in the plurality of receiving areas 125, the baffle 124 can limit the mutual play and extrusion between the unit batteries 110, and protect the unit batteries 110 from impact collision, and meanwhile, the upper housing 121 and the lower housing 122 are pressed against two ends of the plurality of unit batteries 110, so that the plurality of unit batteries 110 can be firmly fixed between the upper housing 121 and the lower housing 122. In addition, the upper case 121 and the lower case 122 are detachably coupled together by a fastening mechanism 123, so that the assembly and disassembly of the plurality of unit batteries 110 can be facilitated. In addition, the baffles 124 may function as reinforcing ribs to improve structural firmness of the upper case 121 and/or the lower case 122, thereby enhancing firmness of the battery pack 100. In summary, the battery pack 100 according to the embodiment of the present application solves the problems of the battery pack in the related art that the battery is not firmly fixed and the battery pack is not easily disassembled.

In some embodiments of the present application, as shown in fig. 1, the fastening mechanism 123 includes a plurality of first interface structures 1231 disposed on the outer circumferential wall of the upper housing 121, a plurality of second interface structures 1232 correspondingly disposed on the outer circumferential wall of the lower housing 122, and a connection column 1233 disposed between the first interface structure 1231 and the second interface structure 1232 corresponding to each other up and down, two ends of the connection column 1233 respectively extend into the first interface structure 1231 and the second interface structure 1232, and two ends of the connection column 1233 are respectively connected to the first interface structure 1231 and the second interface structure 1232 through fasteners, so that the detachable connection between the upper housing 121 and the lower housing 122 can be realized, and the replacement of the single battery 110 in the later period can be facilitated.

In some embodiments of the present application, as shown in fig. 1, the housing structure 120 further includes a containment plate 126, the containment plate 126 is disposed outside the plurality of single batteries 110, an inner surface of the containment plate 126 is attached to the single batteries 110, an outer surface of the containment plate 126 is attached to the upper casing 121 and the lower casing 122, an upper end of the containment plate 126 is clamped to the upper casing 121, and a lower end of the containment plate 126 is clamped to the lower casing 122, and by designing the containment plate 126, not only the single batteries 110 can be protected, but also the overall rigidity of the battery pack 100 can be increased.

Further, the enclosure plate 126 is provided with a groove adapted to the baffle 124, so that the enclosure plate 126 can be fixed between the upper shell 121 and the lower shell 122 by clamping the baffle 124 in the groove, and the structure is simple and the operation is convenient. Further, the containment sheets 126 may be formed by bending a light aluminum alloy sheet, and the containment sheets 126 may be in a non-closed form, it is understood that the containment sheets 126 need not be integral, and the abutting joints thereof are designed on the side of the shell structure 120, so that the containment sheets 126 are simpler to manufacture, beautiful in appearance, and better in overall rigidity. Further, the containment plate 26 is provided with a lightening hole having a hollow structure, so that the battery pack can be lightened.

In some embodiments of the present application, as shown in fig. 1 and 2, the battery pack 100 further includes a load-bearing mechanism 130, the load-bearing mechanism 130 includes two load-bearing bars 131, two brackets 132, and one or more load-bearing bars 133, the two load-bearing bars 131 are respectively disposed at two opposite sides of the housing structure 120, the two brackets 132 are respectively disposed at two sides of the housing structure 120 adjacent to the load-bearing bars 131, the brackets 132 are connected to the lower case 122, one end of any one of the brackets 132 is connected to one of the load-bearing bars 131 and the other end of the bracket 132 is connected to the other load-bearing bar 131, any one of the load-bearing bars 133 is disposed at the bottom of the lower case 122 and extends toward two opposite sides of the lower case 122, one end of the load-bearing bar 133 is connected to one of the load-bearing bars 131, and the other end of the load-bearing bar 133 is connected to the other load-bearing bar 131. Illustratively, in the embodiment of the present application, the housing structure 120 is substantially rectangular parallelepiped, the two opposite sides of the housing structure 120 are provided with the load bars 131, the two sides of the housing structure 120 adjacent to the load bars 131 are provided with the brackets 132, two ends of any one of the brackets 132 are respectively connected with the two load bars 131, the brackets 132 are connected with the lower case 122, the load-bearing bars 133 are provided at the bottom of the lower case 122, two ends of the load-bearing bars 133 are respectively connected with the two load bars 131, the number of the load-bearing bars 133 is three, so that when the battery pack 100 is mounted and fixed, the weight of the plurality of battery cells 110 is distributed on the lower case 122, since the three load-bearing bars 133 are provided at the bottom of the lower case 122, the three load-bearing bars 133 respectively bear a part of the weight, and the three load-bearing bars 133 are connected with the two load bars 131 on the battery pack 100, that the weights can be transmitted to the two load bars 131, the load bar 131 is connected with the bracket 132, and finally, the weight of the battery pack can be transmitted to the two brackets 132 connected with the two load bars 131, so that the stress points of the load bar 131 are more dispersed by arranging the three bearing strips 133, and the weight of the battery pack 100 is finally dispersed to all parts arranged around the battery pack, so that the stress of the load-bearing part of the whole battery pack is more uniform. Therefore, the bearing part of the battery pack is stressed more uniformly when the battery pack is installed and fixed, and the firmness of the battery pack is further improved.

In some embodiments of the present application, as shown in fig. 2 and 8, the load bar 131 may be a metal pipe, bolt holes are formed at two ends of the load bar 131, bosses 1321 are formed at two sides of the bracket 132, a groove 1322 and a through hole 1323 are formed in the middle of the boss 1321, and a bolt passes through the through hole 1323 and is fixedly connected to the bolt holes, so that the bracket 132 and the load bar 131 can be detachably connected together.

In some embodiments of the present application, as shown in fig. 2, both ends of the load-bearing bar 133 may be designed to have a through hole, and when the load-bearing bar 131 is installed, the load-bearing bar 133 can be connected to the load-bearing bar 131 only by passing through the through hole, which is simple in structure and convenient to assemble and disassemble.

In some embodiments of the present application, as shown in fig. 2 and 8, the bottom of the bracket 132 is provided with a tab 1324, an upper surface of the tab 1324 is attached to a lower surface of the lower casing 122, and an inner side wall of the bracket 132 is provided with a locking structure 1325 adapted to an outer side wall of the lower casing 122, so that the bracket 132 is locked to the lower casing 122. In the embodiment of the present application, the bottom of the bracket 132 is provided with the tab 1324, the upper surface of the tab 1324 is attached to the lower surface of the lower housing 122, and the inner side wall of the bracket 132 is provided with the clamping structure 1325 adapted to the outer side wall of the lower housing 122, when the bracket is mounted, the tab 1324 is attached to the lower surface of the lower housing 122, and the clamping structure 1325 of the bracket 132 is clamped on the outer side wall of the lower housing 122, so that the connection mode between the bracket 132 and the lower housing 122 is simplified, and the mounting and dismounting are also facilitated. Further, the outer sidewall of the ear 1324 may be provided with a reinforcement 1326 to further enhance the structural strength of the ear 1326.

In some embodiments of the present application, the bracket 132 is provided with a plurality of threaded holes 1327, and the threaded holes 1327 may be a universal mounting interface for external components, so as to facilitate mounting and fixing of the battery pack, and if the universal mounting interface is not used, the battery pack 100 may be used as a stand-alone unit.

In some embodiments of the present application, as shown in fig. 2, the lower surface of the lower housing 122 is provided with a plurality of limiting protrusions 1221 fitted to the bearing bar 133, and the limiting protrusions 1221 are configured to prevent the bearing bar 133 from moving. In the embodiment of the present application, the lower surface of the lower housing 122 is provided with a plurality of limiting protrusions 1221, and when the bearing strip 133 is mounted, the bearing strip 133 is clamped in the middle of the limiting protrusions 1221, so that the bearing strip 133 can be prevented from moving.

In some embodiments of the present application, as shown in fig. 1, 5 to 7, the battery pack 100 further includes two electrode terminals 140 and a wiring assembly 150, each unit cell 110 has a positive terminal and a negative terminal (not shown), a plurality of unit cells 110 form a plurality of opposite terminal groups therebetween, each opposite terminal group includes a positive terminal of one unit cell 110 and a negative terminal of another unit cell 110 adjacent to the positive terminal, two electrode terminals 140 are disposed between the positive terminal and the negative terminal in one opposite terminal group, the positive terminals and the negative terminals in the other opposite terminal groups are connected through a terminal assembly 150, the terminal assembly 150 includes an electrode overlapping plate 151 and two screws 152 fitted to both ends of the electrode overlapping plate 151, and the two screws 152 are respectively connected with the positive terminals and the negative terminals in the opposite terminal groups. In the embodiment of the present application, the plurality of unit batteries 110 form a plurality of opposite terminal groups, two electrode terminals 140 are disposed between the positive terminal and the negative terminal in one opposite terminal group, and the positive terminal and the negative terminal in the other opposite terminal groups are connected through the wiring assembly 150, thereby connecting the plurality of unit batteries 110 in series, the two electrode terminals 140 serve as the power supply installation interface of the battery pack 100, and can conveniently supply power to the outside, in addition, the wiring assembly 150 includes an electrode overlapping plate 151 and two screws 152, the two screws 152 are fitted to the two ends of the electrode overlapping plate 151, the two screws 152 are respectively connected with the positive terminal and the negative terminal in the opposite terminal group, the structure is simple, the connection is reliable, and the problems of short circuit or broken circuit of the electrode connection lines are avoided.

Further, the electrode strap 151 may be made of brass having good electrical conductivity by machining. Electrode lapping plate 151 has simple structure, reliability height, advantage such as with low costs as the machine tooling part, when guaranteeing to connect the reliability, reduce cost, overcomes among the group battery among the correlation technique the fixed insecure of electrically conductive cable, dismouting easy short circuit and the scheduling problem that opens circuit.

Further, as shown in fig. 3, connection through-holes 1211 are provided on the upper case 121 at positions corresponding to the positive and negative terminals of each unit cell 110 to facilitate connection of the electrode terminals 140 and the terminal assembly 150 to the positive and negative terminals of the unit cell 110.

In some embodiments of the present application, as shown in fig. 5 to 7, the battery pack 100 further includes an electrode insulation grid 160, and the electrode insulation grid 160 is disposed on both the outside of the wiring member 150 and the outside of the electrode terminal 140 to protect the electrode tap 151 or the electrode terminal 140, thereby achieving electrode insulation protection of the battery pack 100.

Further, the electrode insulation grid 160 is connected to the upper case 121 by a snap assembly (not shown) including a groove structure provided on the upper case 121 and a protrusion structure provided on the electrode insulation grid 160, the protrusion structure being adapted to the groove structure to conveniently dispose the electrode insulation grid 160 on the upper case 121.

Further, the electrode insulation grid 160 may be filled with an insulation sealant, so as to prevent short circuit caused by the miscontact of other cables or devices with conductive function with the electrode overlapping plate 151.

In some embodiments of the present application, the surface of each of the plurality of receiving areas 125 is provided with a shock-absorbing pad. In the embodiment of the present application, a shock pad is attached to the receiving area 125, and the single battery 110 is placed on the shock pad, so as to protect the single battery 110.

Furthermore, shock-absorbing pads are arranged among the single batteries 110, so that when the battery pack shakes, the single batteries 110 can be protected by the shock-absorbing pads, and collision and damage among the single batteries can be reduced.

Embodiments of the second aspect of the present application propose a helicopter including the battery pack 100 of any of the above embodiments.

According to the helicopter of the embodiment of the application, including the battery pack 100 of any one of the above embodiments, the battery pack 100 includes a plurality of single batteries 110 and a housing structure 120, the housing structure 120 includes an upper housing 121, a lower housing 122, a fastening mechanism 123 and a baffle 124, the upper housing 121 and the lower housing 122 are connected together through the fastening mechanism 123, the baffle 124 is disposed in the upper housing 121 and/or the lower housing 122, the baffle 124 divides the upper housing 121 and/or the lower housing 122 into a plurality of accommodating areas 125, the single batteries 110 are correspondingly disposed in the accommodating areas 125, the baffle 124 can limit the mutual moving and pressing between the single batteries 110, protect the single batteries 110 from impact and collision, meanwhile, the upper housing 121 and the lower housing 122 are pressed against two ends of the single batteries 110, thereby the single batteries 110 can be firmly fixed between the upper housing 121 and the lower housing 122, in addition, the baffles 124 may function as reinforcing ribs to improve structural firmness of the upper case 121 and/or the lower case 122, thereby enhancing firmness of the battery pack 100. In addition, the upper case 121 and the lower case 122 are detachably coupled together by a fastening mechanism 123, so that the assembly and disassembly of the plurality of unit batteries 110 can be facilitated. Compared with the battery pack in the related art, the battery pack on the helicopter of the embodiment of the application has the advantages of simple and reliable structure, convenience in combined use, good safety and maintainability and the like, the weight and the manufacturing cost of the helicopter can be greatly reduced, and the stability and the safety of the helicopter can be improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. The above description is only for the preferred embodiment of the present application and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims (10)

1. The utility model provides a battery pack, its characterized in that includes a plurality of battery cells and shell structure, shell structure includes casing, lower casing, fastening device and baffle, it is located to go up the casing the top of casing just down go up the casing with the casing passes through fastening device can dismantle the connection together down, go up the casing and/or the internal baffle that is provided with of lower casing, just the baffle will go up casing and/or lower casing and split into a plurality of holding districts respectively, a plurality of battery cell places correspondingly in a plurality of in the holding district.

2. The battery pack according to claim 1, wherein the fastening mechanism comprises a plurality of first interface structures disposed on the peripheral wall of the upper housing, a plurality of second interface structures correspondingly disposed on the peripheral wall of the lower housing, and a connecting column disposed between the first interface structures and the second interface structures and vertically corresponding to each other, two ends of the connecting column respectively extend into the first interface structures and the second interface structures, and two ends of the connecting column are respectively connected to the first interface structures and the second interface structures through fasteners.

3. The battery pack according to claim 1, wherein the housing structure further comprises a containment plate, the containment plate is enclosed outside the plurality of single batteries, the inner surface of the containment plate is attached to the single batteries, the outer surface of the containment plate is attached to the upper shell and the lower shell, the upper end of the containment plate is connected to the upper shell in a clamped manner, and the lower end of the containment plate is connected to the lower shell in a clamped manner.

4. The battery pack according to claim 1, further comprising a load bearing mechanism including two load bars, two brackets, and one or more load bearing bars, wherein the two load bars are respectively disposed on opposite sides of the housing structure, the two brackets are respectively disposed on opposite sides of the housing structure adjacent to the load bars, the brackets are connected to the lower case, one end of any one of the brackets is connected to one of the load bars and the other end of the bracket is connected to the other one of the load bars, any one of the load bearing bars is disposed at the bottom of the lower case and extends toward opposite sides of the lower case, one end of the load bearing bar is connected to one of the load bars, and the other end of the load bearing bar is connected to the other one of the load bars.

5. The battery pack according to claim 4, wherein the load bar is a metal pipe, bolt holes are formed in two ends of the load bar, bosses are arranged on two sides of the bracket, a groove and a through hole are formed in the middle of each boss, and a bolt penetrates through the through hole and is fixedly connected to the bolt holes; the two ends of the bearing strip are in a shape with through holes; the bottom of bracket is provided with the auricle, the upper surface of auricle with the lower surface laminating of casing down, the inside wall of bracket be provided with the card platform structure of the outside wall looks adaptation of casing down.

6. The battery pack according to claim 4, wherein the lower surface of the lower case is provided with a plurality of stopper protrusions fitted to the load bearing bars, the stopper protrusions being configured to prevent the load bearing bars from moving.

7. The battery pack according to claim 1, further comprising two electrode terminals and a terminal assembly, each of the unit cells having a positive terminal and a negative terminal, a plurality of opposite terminal groups being formed between the unit cells, each of the opposite terminal groups including a positive terminal of one of the unit cells and a negative terminal of another unit cell adjacent thereto, the two electrode terminals being disposed between the positive terminal and the negative terminal in one of the opposite terminal groups, the positive terminal and the negative terminal in the rest opposite terminal groups are connected through a wiring assembly, the wiring assembly comprises an electrode lapping plate and two screws matched with two ends of the electrode lapping plate, and the two screws are respectively connected with a positive terminal and a negative terminal in the opposite-polarity wiring terminal group.

8. The battery pack according to claim 7, further comprising an electrode insulation grid, wherein the electrode insulation grid is disposed outside the wiring assembly and outside the electrode terminal, the electrode insulation grid is connected to the upper housing through a buckle assembly, the buckle assembly comprises a groove structure disposed on the upper housing and a protrusion structure disposed on the electrode insulation grid, the protrusion structure is adapted to the groove structure, and an insulation sealant is poured into the electrode insulation grid.

9. The battery pack according to claim 1, wherein a plurality of the receiving areas are provided at their surfaces with shock-absorbing pads.

10. A helicopter comprising a battery pack according to any one of claims 1 to 9.

Images