CN217387407U - Plant protection is laminate polymer battery group for unmanned aerial vehicle - Google Patents

Abstract

The utility model provides a plant protection is laminate polymer battery group for unmanned aerial vehicle, this laminate polymer battery group includes battery case and pond module, the battery module includes a plurality of laminate polymer battery cores and busbar, busbar and each laminate polymer battery core's lug connection, the battery module still includes heat conduction baffle and strapping, heat conduction baffle presss from both sides between every two adjacent laminate polymer battery cores, the strapping winding is in the periphery of each laminate polymer battery core and heat conduction baffle, in order to pack into a whole with each laminate polymer battery core and heat conduction baffle, battery case is the heat conduction casing, there is the heat conduction glue in the heat conduction casing, the heat conduction glue is filled between heat conduction casing and battery module, the heat conduction glue is at least with the sealed parcel in upper end of battery module, outside lead-out wire of battery module upper end stretches out from the upside of heat conduction glue. The utility model provides a soft packet of battery group for unmanned aerial vehicle of plant protection has effectively solved the soft packet of battery group among the prior art and has had the not enough technical problem of thermal diffusivity and leakproofness.

Description

Plant protection is laminate polymer battery group for unmanned aerial vehicle

Technical Field

The utility model relates to a group battery that uses on the aircraft of throwing or release likepowder, liquid, gaseous state material, concretely relates to soft packet of battery group for plant protection unmanned aerial vehicle.

Background

At present, along with plant protection unmanned aerial vehicle's application is more and more extensive, plant protection unmanned aerial vehicle's loading capacity promotes to 40 ~ 50 kilograms from original 20 ~ 30 kilograms, and plant protection unmanned aerial vehicle on the market adopts soft-package battery group to supply power more, along with the promotion of plant protection unmanned aerial vehicle loading capacity, the multiplying power requirement to soft-package battery group charge-discharge also correspondingly improves, under the normal condition, the charge-discharge flow of soft-package battery group can reach 200A, this just makes soft-package battery group can produce a large amount of heats when charging-discharge, just need guarantee during the design soft-package battery group that the group battery has sufficient soaking and heat dissipation. In addition, because plant protection unmanned aerial vehicle during operation need spray insecticide, water, if do not do sealed protection for the laminate polymer battery group, laminate polymer battery core and interconnecting link among the laminate polymer battery group are corroded by other foreign matters in pesticide, water and the air very easily, can lead to the damage of group battery even on fire when serious. In addition, plant protection unmanned aerial vehicle is about 20 minutes at the operating duration under the condition that laminate polymer battery group is full of electricity, and power consumptive speed is very fast, needs often to change laminate polymer battery group, and laminate polymer battery group is after charging repeatedly, and heat between the laminate polymer battery cell in the laminate polymer battery group gives off and does not go out, can make laminate polymer battery cell appear bulging, seriously influences laminate polymer battery group's life.

The current chinese utility model patent of granting bulletin number for CN207834384U provides a soft-packaged encapsulating lithium electronic battery module, and this battery module includes battery case (the cell body in this patent promptly) and places a plurality of soft-packaged electrical core in battery case (the electric core in this patent promptly), and it is fixed that soft-packaged electrical core passes through heat-conducting glue in the battery case, and the busbar is connected with the utmost point ear of each soft-packaged electrical core upper end to establish ties each soft-packaged electrical core and form the battery module.

Above-mentioned this kind of battery module has following two problems, and first laminate each other between the adjacent laminate core, when charging and discharging, the heat of the laminating side department of adjacent laminate core can't in time effectual effluvium, leads to laminate core high temperature easily to take place the danger of firing. Meanwhile, the battery cell is bulged due to overhigh temperature, so that the service life of the battery pack is influenced; secondly, the upper protection of the battery module is only completed by the cover body, when the cover body and the groove body are assembled, due to the reasons of processing precision and assembling precision, a gap is hardly reserved between the cover body and the battery shell, pesticides, water and other foreign matters in the air belong to very fine substances, the foreign matters are particularly easy to enter the upper end of the battery module through the gap, the upper end of the battery module is provided with a plurality of outward leading-out wires, and after the foreign matters corrode the upper end of the battery module, a circuit short circuit is easily caused, and even a fire is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a plant protection is laminate polymer battery group for unmanned aerial vehicle to laminate polymer battery group among the solution prior art has thermal diffusivity and the not enough technical problem of leakproofness.

The utility model discloses well plant protection is laminate polymer battery group for unmanned aerial vehicle adopts following technical scheme:

a soft package battery pack for a plant protection unmanned aerial vehicle, which comprises a battery shell and a battery module fixedly arranged in the battery shell, the battery module comprises a plurality of soft-package battery cells which are combined together and a busbar which is arranged at the upper end of each soft-package battery cell, the busbar is connected with the pole ear of each soft-package battery cell, the battery module also comprises a heat-conducting clapboard and a strapping tape, the heat-conducting clapboard is clamped between every two adjacent soft package cells, and has a portion exposed outside the soft-package battery cell, the strapping tape is wound around the outer peripheries of each soft-package battery cell and the heat conductive partition plate, in order to with each laminate polymer core with the heat conduction baffle packs into a whole, battery case is the heat conduction casing, has heat conduction glue in the heat conduction casing, and heat conduction glue is filled between heat conduction casing and battery module, and heat conduction glue will at least the sealed parcel in upper end of battery module, the outside lead-out wire of battery module upper end is followed the upside of heat conduction glue and is stretched out outwards.

Has the advantages that: when the soft package battery pack for the plant protection unmanned aerial vehicle is used, if external foreign matters enter the battery shell, the foreign matters can be shielded by the heat-conducting glue so as to prevent the foreign matters from directly falling to the upper end of the battery module, the protection effect on the battery module is achieved, and in addition, the heat generated by the battery module can be transmitted to the battery shell by the heat-conducting glue, so that the heat dissipation of the battery module is facilitated; when the battery is charged and discharged, the heat conduction partition plate is arranged between the two adjacent soft package battery cells, the heat at the joint side of the two adjacent soft package battery cells can be led out to the battery shell through the heat conduction partition plate, the battery shell is a heat conduction shell, the heat can be timely discharged out of the battery pack, and the heat is prevented from being accumulated between the two adjacent soft package battery cells, so that the temperature of the soft package battery cells is prevented from being too high, and the possibility of bulging of the soft package battery cells is avoided to the greatest extent; in addition, the soft package battery core and the heat conduction partition board are wound and packaged into a whole by the strapping tape, so that the battery pack is convenient to assemble, the strapping tape can provide a restraining force at the periphery of the soft package battery core, and certain effect can be achieved on preventing the soft package battery core from bulging.

Furthermore, the filling height of the heat-conducting glue is not less than the height of the battery module, so that the upper end and the periphery of the battery module are completely wrapped.

Has the advantages that: the upper end of battery module and all parcel all around have the heat conduction to glue, can be spacing to forming around the battery module like this, prevent that the battery module from rocking producing all around, can increase heat conduction area secondly for heat on the battery module can be through heat conduction glue fast transfer to battery case on, promotes the heat conduction effect.

Furthermore, the heat-conducting glue is filled between the bottom plate of the battery shell and the lower end of the battery module, and the heat-conducting glue is filled in gaps between the battery shell and the battery module.

Has the advantages that: the gaps between the battery shell and the battery module are filled with the heat-conducting glue, so that the heat dissipation area of the battery module can be increased, the battery module can quickly transfer heat to the battery shell and finally be discharged to the outside; and secondly, the position of the battery module in the battery shell can be fixed, and the battery module is prevented from shaking in the battery shell when the battery pack is bumpy, so that power supply is influenced.

Further, the gap between the side wall of the battery case and the battery module is not more than 3 mm.

Has the advantages that: the clearance between battery case and the battery module all does not exceed 3 millimeters, sets up like this for the packing volume that reduces heat conduction glue to lighten the weight of group battery, so that make the group battery lighter.

Further, the thickness of the heat-conducting glue covering the upper side face of the bus bar is not more than 3 mm.

Has the advantages that: the thickness of the heat conductive glue is not more than 3 mm in order to reduce the weight of the battery pack, so that the battery pack is more lightweight.

Further, the cross section of heat conduction baffle is the U-shaped, and soft-packaged electrical core is in the U-shaped space, the bottom of heat conduction baffle is equipped with the bottom turn-ups that extends towards U-shaped opening one side, the bottom turn-ups is used for supporting soft-packaged electrical core, and after each soft-packaged electrical core was bound together with heat conduction baffle, four sides of soft-packaged electrical core were laminated mutually with the face of adjacent two baffles of this soft-packaged electrical core.

Has the advantages that: the heat conduction baffle of this kind of structure when using, can wrap up the protection with the bottom around the soft-packaged electrical core through the baffle part and the bottom turn-ups that the double-phase opposite side of U-shaped corresponds, and as the part that exposes outside soft-packaged electrical core, can in time spill the heat that the soft-packaged electrical core produced simultaneously, improved the safety protection effect and the radiating effect of battery module.

Further, a buffer cushion layer is arranged between the bottom flanging and the corresponding soft package battery core.

Has the advantages that: the cushion layer is arranged between the flanging and the corresponding soft-package battery cell, so that the cushion layer plays a role in protecting the soft-package battery cell to weaken the adverse effect of vibration and impact on the soft-package battery cell.

Further, the cushion pad layer is made of EVA cotton.

Has the advantages that: the EVA cotton has excellent antistatic performance and buffering performance and is easy to process and mold.

Further, the battery shell comprises a cylindrical shell, a bottom plate and a cover body, wherein the bottom plate is sealed and detachably arranged at the lower end of the cylindrical shell, and the cover body is sealed and detachably arranged at the upper end of the cylindrical shell.

Has the beneficial effects that: because the clearance between the battery module and the battery shell is very small, the battery module is not easy to be directly placed in the battery shell and positioned, and after the battery shell adopts the mounting structure which is vertically detachable, when the battery module is mounted, the battery module can be firstly fixed on the bottom plate, and then the cylindrical shell is covered on the bottom plate for fastening, thereby facilitating the mounting of the battery module; when demolising battery module from battery case, can all pull down bottom plate and lid earlier, at the one end application of force of tube-shape shell, battery module can come out from the other end of tube-shape shell, compares the battery that the bottom plate is not removable can say, if fill full heat-conducting glue between battery case and the battery module, then hardly take out battery module from the battery case.

Further, a sealing ring is arranged between the bottom plate and the lower end of the cylindrical shell, and the bottom plate and the cylindrical shell are connected through a connecting screw penetrating through the bottom plate and screwed in the cylindrical shell, so that the bottom plate and the cylindrical shell are in sealed detachable installation.

Has the advantages that: the threaded connection structure is easy to process and operate, and the connection is tight and not easy to loosen.

Drawings

Fig. 1 is a schematic structural diagram of a soft package battery pack for a plant protection unmanned aerial vehicle (end covers are not shown in the figure) provided by the present invention;

fig. 2 is a schematic structural view of the battery module of fig. 1;

fig. 3 is a schematic view of the battery module when it is placed in the battery case;

fig. 4 is a plan view of the pouch battery pack for a plant protection unmanned aerial vehicle of fig. 1 (heat conductive glue is not shown);

fig. 5 is a cross-sectional view taken at a-a in fig. 4.

The names of the components corresponding to the corresponding reference numerals in the drawings are:

1. a battery case; 11. a base plate; 12. a cylindrical shell; 13. a seal ring; 2. a battery module; 21. soft-packaged battery cells; 22. a bus bar; 23. a thermally conductive spacer; 24. side flanging; 25. flanging the bottom; 26. an end clamp plate; 27. a strapping tape; 28. EVA cotton; 3. heat conducting glue; 4. and leading out the wires outwards.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

It is noted that, in the embodiments of the present invention, relational terms such as "first" and "second", and the like, which may be present in the embodiments, are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between the entities or operations. Also, terms such as "comprises," "comprising," or any other variation thereof, which may be present, 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, the appearances of the phrase "comprising an … …" or similar limitation may be present without necessarily excluding the presence of additional identical elements in the process, method, article, or apparatus that comprises the same elements.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used 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; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from the specific situation.

In the description of the present invention, unless otherwise explicitly specified or limited, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or a non-detachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from the specific situation.

The present invention will be described in further detail with reference to examples.

The utility model discloses embodiment 1 of well plant protection is laminate polymer battery group for unmanned aerial vehicle:

as shown in fig. 1, the soft package battery pack for the plant protection unmanned aerial vehicle provided by this embodiment includes battery case 1 and battery module 2 fixedly mounted in battery case 1, and battery case 1 is a heat conduction case, and battery module 2 includes a plurality of soft package battery cells 21, busbar 22, heat conduction baffle 23, end splint 26 and strapping 27 that are in the same place. In addition, a heat-conducting glue 3 is filled between the battery shell 1 and the battery module 2.

Specifically, the structure of battery module is as shown in fig. 2, each soft-packaged electrical core 21 arranges side by side, the direction of arranging of defining each soft-packaged electrical core 21 is left right direction, busbar 22 has been arranged to the upper end of each soft-packaged electrical core 21, be equipped with the slotted hole on busbar 22, the battery utmost point ear of each soft-packaged electrical core 21 upside equally divide and do not stretch over the corresponding slotted hole on busbar 22, each battery utmost point ear turns over a back and is conductively connected with the copper on busbar 22, make each soft-packaged electrical core 21 establish ties together through busbar 22, series connection between the soft-packaged electrical core 21 is prior art, no longer too much give unnecessary details here. A heat conduction partition plate 23 is uniformly arranged between two adjacent soft package battery cores 21, the structure of each heat conduction partition plate 23 is the same, next, taking one of the two adjacent soft package battery cores 21 as an example, the structure of the heat conduction partition plate 23 is explained, as shown in fig. 1, the heat conduction partition plate 23 comprises a partition plate main body and side flanges 24 positioned on the front side and the rear side of the partition plate main body, the partition plate main body is a flat plate, when the heat conduction partition plate is used, the partition plate main body is positioned between the two adjacent soft package battery cores 21 and used for separating the two adjacent soft package battery cores 21, the side flanges 24 on the two sides are used as parts for exposing the soft package battery cores 21, the side flanges 24 on the two sides are all identical to the extending direction of the side flanges 24 vertical to the partition plate main body and on the two sides, so that the cross section of the heat conduction partition plate 23 is in a U shape, and the soft package battery cores 21 are placed in a U-shaped space on the heat conduction partition plate 23. In addition, heat conduction separator 23's bottom is equipped with bottom turn-ups 25, and bottom turn-ups 25 extends towards U-shaped open-ended one side, and bottom turn-ups 25 also is as exposing soft-packaged electrical core 21's part, and when using, bottom turn-ups 25 is used for supporting soft-packaged electrical core 21, and in order to play the guard action to soft-packaged electrical core 21, it has the cushion layer to fill up between bottom turn-ups 25 and the soft-packaged electrical core 21, and the cushion layer is the EVA cotton 28.

In this embodiment, as shown in fig. 1, each soft-packaged battery cell 21 and the corresponding heat conduction partition plate 23 are placed together side by side along the left-right direction, except the soft-packaged battery cell 21 at both ends, two sides of any soft-packaged battery cell 21 located at the middle part in the left-right direction are respectively laminated with the partition plate main body of the heat conduction partition plate 23 adjacent to the side, two sides in the front-back direction of the soft-packaged battery cell 21 are respectively laminated with the side flanging 24 of the two sides on the heat conduction partition plate 23 where the side is located, so that four sides and the bottom surface of the soft-packaged battery cell 21 in the front-back left-right direction can all obtain good parcel protection. In the soft-packaged electrical core 21 that is located both ends, on the left and right sides direction, the lateral surface facing of the soft-packaged electrical core 21 at left and right both ends is equipped with end splint 26, it should be explained that, in this embodiment, heat conduction baffle 23 is when placing, and the orientation of U-shaped mouth all arranges right on the heat conduction baffle 23, makes the lateral surface that is located the soft-packaged electrical core 21 of left end and the laminating of the baffle main part on the heat conduction baffle 23 that rather than being located, pastes the outside that the end splint 26 of establishing on the soft-packaged electrical core 21 of left end is located this baffle main part. In other embodiments, when the heat conductive partition 23 is placed, the U-shaped opening of the heat conductive partition 23 is oriented leftward, so that the outer side surface of the soft package battery cell 21 at the right end is attached to the partition main body on the heat conductive partition 23, and the end clamp plate 26 attached to the soft package battery cell 21 at the right end is located outside the partition main body.

As shown in fig. 1, after each of the soft-package battery cells 21, the heat-conducting partition plate 23 and the end clamp plate 26 are attached and placed side by side, the strapping tape 27 is wound around each of the soft-package battery cells 21, the heat-conducting partition plate 23 and the end clamp plate 26 to pack each of the soft-package battery cells 21, the heat-conducting partition plate 23 and the end clamp plate 26 into a whole. In this embodiment, there are three packing belts 27 wound at three heights, i.e., upper, middle, and lower. In addition, the end clamping plates 26 on the left and right sides are respectively provided with an upper elongated slot, a middle elongated slot and a lower elongated slot so as to respectively correspond to the three packing belts 27, and the packing belts 27 are prevented from sliding in the up-down direction.

In this embodiment, as shown in fig. 3, after the battery module 2 is packed, the battery module 2 needs to be placed in the battery case 1. The battery case 1 includes a bottom plate 11, a cylindrical case 12, and a lid (not shown in the drawings). A sealing ring 13 is arranged between the bottom plate 11 and the lower end of the cylindrical shell 12 and is connected with the bottom plate 11 and the cylindrical shell 12 through screws, so that the bottom plate 11 and the cylindrical shell 12 are in sealed detachable installation. The specific steps of placing the battery module 2 in the battery case 1 are as follows: firstly brushing a layer of heat-conducting glue 3 on a bottom plate 11, then placing a battery module 2 on the bottom plate 11, positioning the battery module 2, then sleeving a cylindrical shell 12 on the periphery of the battery module 2, and enabling a screw to penetrate through the bottom plate 11 and be screwed in the cylindrical shell 12, as shown in fig. 4 and 5, a gap exists between the peripheral side wall of the battery module 2 and the cylindrical shell 12, the gap is 3 mm, then pouring the heat-conducting glue 3 between the battery shell 1 and the battery module 2, as shown in fig. 1, the filling height of the heat-conducting glue 3 is higher than the height of the battery module 2, the thickness of the heat-conducting glue 3 covering the upper side surface of a busbar 22 is 3 mm, and the gaps between the periphery of the battery module 2 and the cylindrical shell 12 are filled with the heat-conducting glue 3, so that the upper end, the lower end and the periphery of the battery module 2 are all wrapped by the heat-conducting glue 3. Be equipped with outside lead-out wire 4 on busbar 22, outside lead-out wire 4 includes the input/output line, the voltage acquisition line and the signal communication line of electric current, and outside lead-out wire 4 passes the heat conduction glue 3 on busbar 22 upper strata and stretches out from the upside that heat conduction glue 3, covers the dress with the lid in the upper end of tube-shape shell 12 at last, and outside lead-out wire 4 is connected in the relevant position department of lid, and so far, the completion is to the equipment of laminate polymer battery group.

The laminate polymer battery pack for the plant protection unmanned aerial vehicle that this embodiment provided is when using, and other foreign matters in pesticide, water and the air are when entering into battery module 2 through the gap between lid and tube-shape shell 12 on, because of busbar 22 is covered by heat conduction glue for the foreign matter can not further enter into battery module 2 in, thereby can't corrode battery module 2, has played effectual protection to battery module 2. Laminate polymer battery group is when charge-discharge, and on heat between the adjacent laminate polymer core 21 can transmit corresponding heat conduction baffle 23, heat conduction baffle 23 with heat transfer to the side turn-ups 24 on, the heat that the side turn-ups 24 then will gather is transmitted to battery case 1 through heat-conducting glue 3 on for heat between the adjacent laminate polymer core 21 is derived, avoids laminate polymer core 21 the condition that the high temperature appears.

The utility model discloses embodiment 2 of well plant protection is laminate polymer battery group for unmanned aerial vehicle:

the difference between this embodiment and embodiment 1 is that in embodiment 1, the upper end, the lower end, and the periphery of the battery module are wrapped by the heat conductive glue. And in this embodiment, set up the baffle in two-thirds department of laminate polymer core height, avoid making the heat-conducting glue enter into the baffle below when pouring the heat-conducting glue for the heat-conducting glue forms the cover to the laminate polymer core part of busbar and baffle top, in order to accomplish the parcel to the upper end of battery module.

The utility model discloses embodiment 3 of well plant protection is laminate polymer battery group for unmanned aerial vehicle:

the present embodiment is different from embodiment 1 in that, in embodiment 1, the upper end, the lower end, and the periphery of the battery case are wrapped by the heat conductive paste. And in this embodiment, set up baffle down in the third department of soft-packaged electrical core height, set up the baffle in the two-thirds department of soft-packaged electrical core height, avoid the heat conduction glue to enter into between the upper and lower baffle when pouring the heat conduction glue for the heat conduction glue forms the cover to the busbar, the soft-packaged electrical core part of baffle below down and the soft-packaged electrical core part of baffle top down, in order to accomplish the parcel to the upper and lower end of battery module.

The utility model discloses embodiment 4 of well plant protection is laminate polymer battery group for unmanned aerial vehicle:

the present embodiment is different from embodiment 1 in that, in embodiment 1, the thickness of the heat conductive paste covering the upper side surface of the bus bar is 3 mm. In the embodiment, the thickness of the heat conductive paste covering the upper side surface of the bus bar is less than 3 mm, for example, 1 mm or 2 mm, and the specific value can be adjusted according to actual conditions.

The utility model discloses embodiment 5 of well plant protection is laminate polymer battery group for unmanned aerial vehicle:

the present example is different from example 1 in that in example 1, the gap between the peripheral side wall of the battery module and the cylindrical case was 3 mm. In this embodiment, the gap between the sidewall of the battery module and the cylindrical case is less than 3 mm, for example, 1 mm or 2 mm, and the specific value can be adjusted according to the actual situation.

The utility model discloses embodiment 6 of well plant protection is laminate polymer battery group for unmanned aerial vehicle:

the difference between this embodiment and embodiment 1 is that, in embodiment 1, the portions of the heat-conducting partition board exposed outside the soft-package battery cell are the side flanges located at the front and rear sides and the bottom flange located at the bottom. In this embodiment, the cross section of heat conduction baffle is the straight line, and heat conduction baffle's bottom is equipped with the bottom turn-ups, and in the front and back direction, heat conduction baffle size is greater than the size of soft-package electricity core for corresponding part on the heat conduction baffle can expose outside soft-package electricity core. In other embodiments, the bottom of the heat-conducting partition plate is not provided with a bottom flange, and the heat-conducting partition plate and the corresponding soft-package battery cell are fixed through a double-sided adhesive tape.

The utility model discloses embodiment 7 of well plant protection is laminate polymer battery group for unmanned aerial vehicle:

the difference between this embodiment and embodiment 1 is that, in embodiment 1, a cushion layer is disposed between the bottom flange and the soft-package battery cell. In this embodiment, the bottom flange is not in direct contact with the soft-package battery cell, and the cushion layer is not arranged between the bottom flange and the soft-package battery cell.

The utility model discloses embodiment 8 of well plant protection is laminate polymer battery group for unmanned aerial vehicle:

the difference between this example and example 1 is that in example 1, the cushion layer is EVA cotton. In this embodiment, the cushion layer is a rubber pad.

The utility model discloses embodiment 9 of well plant protection is laminate polymer battery group for unmanned aerial vehicle:

this embodiment is different from embodiment 1 in that embodiment 1, the cylindrical case and the bottom plate in the mounting case are detachably connected. In this embodiment, the cylindrical case and the bottom plate in the mounting case are integrally formed.

The utility model discloses embodiment 10 of well plant protection is laminate polymer battery group for unmanned aerial vehicle:

the difference between this embodiment and embodiment 1 is that in embodiment 1, end clamping plates are attached to the outer side surfaces of the soft packing cells located at the left and right ends. In this embodiment, the lateral surface department that is located the soft-packaged electrical core at left and right both ends does not be equipped with the end splint, and the strapping direct winding is around each soft-packaged electrical core and each heat conduction baffle to pack into a whole with each soft-packaged electrical core and each heat conduction baffle.

The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes equivalent to the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a plant protection laminate polymer battery group for unmanned aerial vehicle, includes battery case (1) and fixed mounting battery module (2) in battery case (1), battery module (2) include a plurality of and laminate polymer battery core (21) together and busbar (22) that are in each laminate polymer battery core (21) upper end, busbar (22) are connected with the utmost point ear of each laminate polymer battery core (21), its characterized in that, battery module (2) still include heat conduction baffle (23) and strapping (27), heat conduction baffle (23) clamp is between every two adjacent laminate polymer battery cores (21), and has the part that exposes outside laminate polymer battery core (21), strapping (27) twine in each laminate polymer battery core (21) and the periphery of heat conduction baffle (23) to with each laminate polymer battery core (21) with heat conduction baffle (23) packing into a whole, battery case (1) is heat conduction casing, the heat conduction shell is internally provided with heat conduction glue (3), the heat conduction glue (3) is filled between the heat conduction shell and the battery module (2), the heat conduction glue (3) at least seals and wraps the upper end of the battery module (2), and an outward outgoing line (4) at the upper end of the battery module (2) extends out from the upper side of the heat conduction glue (3).

2. The soft pack battery pack for a plant protection unmanned aerial vehicle according to claim 1, wherein the filling height of the heat conductive glue (3) is not less than the height of the battery module (2) to completely wrap the upper end and the periphery of the battery module (2).

3. The soft-package battery pack for the plant protection unmanned aerial vehicle according to claim 2, wherein the heat-conducting glue (3) is filled between the bottom plate (11) of the battery shell (1) and the lower end of the battery module (2), and the heat-conducting glue (3) is filled in gaps between the battery shell (1) and the battery module (2).

4. The pouch battery pack for a plant protection unmanned aerial vehicle according to claim 3, wherein a gap between the side wall of the battery case (1) and the battery module (2) is not more than 3 mm.

5. The soft pack battery for a plant protection unmanned aerial vehicle according to any one of claims 1 to 4, wherein the thickness of the heat conductive paste (3) covering the upper side of the bus bar (22) is not more than 3 mm.

6. The soft package battery pack for the plant protection unmanned aerial vehicle according to any one of claims 1 to 4, wherein the cross section of the heat conduction partition plate (23) is U-shaped, the soft package battery cell (21) is located in the U-shaped space, the bottom of the heat conduction partition plate (23) is provided with a bottom flange (25) extending towards one side of the U-shaped opening, the bottom flange (25) is used for supporting the soft package battery cell (21), and after each soft package battery cell (21) is bound with the heat conduction partition plate (23), four side faces of the soft package battery cell (21) are attached to the faces of two partition plates close to the soft package battery cell (21).

7. The soft package battery pack for a plant protection unmanned aerial vehicle according to claim 6, wherein a cushion layer is arranged between the bottom flange (25) and the corresponding soft package battery cell (21).

8. The soft pack battery for a plant protection unmanned aerial vehicle according to claim 7, wherein the cushion layer is EVA cotton (28).

9. The soft pack battery pack for a plant protection unmanned aerial vehicle according to any one of claims 1 to 4, wherein the battery case (1) comprises a cylindrical case (12), a bottom plate (11), and a lid body, wherein the bottom plate (11) is detachably mounted on a lower end of the cylindrical case (12) in a sealing manner, and the lid body is detachably mounted on an upper end of the cylindrical case (12) in a sealing manner.

10. The soft pack battery pack for a plant protection unmanned aerial vehicle according to claim 9, wherein a sealing ring (13) is arranged between the bottom plate (11) and the lower end of the cylindrical shell (12), and the bottom plate (11) and the cylindrical shell (12) are connected by a connecting screw which penetrates through the bottom plate (11) and is screwed in the cylindrical shell (12), so that a sealed detachable installation is formed between the bottom plate (11) and the cylindrical shell (12).

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