CN206059577U

CN206059577U - Battery heat control device

Info

Publication number: CN206059577U
Application number: CN201620236400.7U
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-04-03
Filing date: 2016-03-26
Publication date: 2017-03-29
Anticipated expiration: 2026-03-26
Also published as: CN210489777U

Abstract

This utility model provides a kind of simple structure, good effect of heat exchange, the battery heat control device of low cost, including：Battery unit, dividing plate；Battery unit includes the diaphragm seal for sealing battery inner core of battery inner core and battery inner core outer wrap, at least part of surface and at least part of outer surface directly contact of the diaphragm seal of the dividing plate, and fluid passage is provided with dividing plate.Battery unit and dividing plate spaced setting is formed one or more " sandwich " structures by this utility model, battery unit is separated by dividing plate, and fluid passage is formed between battery unit, it is preferable that the heat transferring medium in fluid passage can be with battery unit direct heat transfer.Compared to prior art, this utility model simple structure, with low cost, heat transfer effect is more preferable.

Description

Battery heat control device

Technical field

This utility model is related to a kind of battery heat control device, more particularly to a kind of simple structure, heat conduction efficiency are high Battery heat control device.

Background technology

Current battery, especially rechargeable battery, are a kind of cleaning, efficient power source, and which applies extremely wide.But Be, it is well known that battery work, and charging process in can produce substantial amounts of heat, once it is overheated or itself be in high temperature Environment, then can bring adverse effect to battery, even result in battery explosion.Field, battery are used especially for motor vehicles etc. Volume is larger, and battery radiating is slow, it is necessary to solve heat dissipation problem by outside cooling system.

CN102683766A discloses a kind of battery cooling apparatus, and battery unit is placed in bag, and cooling unit is inserted into In bag, heat exchange is carried out between bag outer portion and air or outside cooling fluid, so as to battery unit heat in bag is taken out of. In the method, between cooling unit and cooling fluid, heat exchange area is limited, and cooling unit is needed in bag and battery unit Bag outer portion is caused to be diffused heat conduction after heat exchange, radiating effect is very poor.

CN102117904A discloses another battery cooling means, and coldplate, coldplate week are arranged between battery While the cooling fluid pipeline being provided around.This mode has more preferable heat exchange effect, but, similarly, battery unit is produced Raw heat also only carries out heat exchange by limited area of dissipation and cooling medium, and the method causes set of cells volume huge Greatly, complex structure.

As can be seen that the cooling system of prior art is mostly indirect heat exchange, and there is complicated cooling path, because This, on the basis of battery thermal control effect is guaranteed, simplifies battery thermal control structure, reduces battery volume, be desired by people 's.

Utility model content

For current battery heat control device heat transfer effect is poor, baroque problem, this utility model provides one kind Simple structure, good effect of heat exchange, the battery heat control device of low cost.

Battery heat control device provided by the utility model, including：Battery unit, dividing plate；Battery unit includes battery Inner core and, the diaphragm seal that battery inner core is sealed of battery inner core outer wrap, at least part of surface of the dividing plate and institute At least part of outer surface directly contact of diaphragm seal is stated, and in dividing plate, is provided with fluid passage.

Wherein, the battery unit can include a battery inner core or the set of cells containing multiple battery inner cores, and And can be that each battery inner core is equipped with single diaphragm seal, or a set of cells shares a diaphragm seal.And it is described Battery can be disposable battery, any one or a few in rechargeable battery.It is highly preferred that the battery unit is preferably At least include soft-package battery, any one or a few in duricrust battery, more preferably at least including soft-package battery, more preferably One or more soft-package batteries.

Wherein, the battery inner core itself can be provided with diaphragm seal；But the battery inner core can also be not provided with sealing Film, and can only realize the basic structure of battery functi on.

Wherein, the battery is preferably flat pattern, the flat pattern preferably length/thickness and width/thickness Value is separately at least 5, is more preferably at least 10, is more preferably at least 15, is more preferably at least 50, more preferably To be at least 100.

Contact surface between the dividing plate and the diaphragm seal can be continuous or be intervally arranged.

In a kind of preferred embodiment of the present utility model, the battery heat control device includes at least two battery lists Unit, battery unit are arranged with baffle interval.

In a kind of preferred embodiment of the present utility model, the dividing plate fluid passage can be with the sealing of battery unit Film directly contact, it is also possible to the not diaphragm seal directly contact with battery unit.Even if dividing plate fluid passage is not straight with diaphragm seal Contact, in that face of no dividing plate, diaphragm seal and heat transferring medium directly contact.

The fluid passage can be identical with electrode direction, or perpendicular to electrode direction but it is also possible to be other directions, Electrode direction is preferably normal in this utility model.

In a kind of more preferred embodiment, the dividing plate includes two flat boards, two flat boards respectively with a battery unit Diaphragm seal contact, be provided with the connecting plate being connected at least one flat board between two flat boards, so as between two flat boards Form fluid passage.

In another kind of more preferred embodiment, the dividing plate is fin structure, it is preferable that be sequentially connected between fin, institute It can be the connection such as " V " shape, " u "-shaped, trapezoidal, arc, zigzag to state connected mode, and can be parallel between adjacent fins Or shape is at an angle, so as to the fluid passage is formed between adjacent fins.

Wherein, it is highly preferred that the fin structure includes the flat board at riser and riser two ends, the flat board is close with battery Sealer directly contact.

It is highly preferred that the fin structure includes the flat board described in two groups, described two groups respectively with two adjacent batteries The diaphragm seal contact of a battery unit in unit, each group include multiple flat boards.It is highly preferred that each flat board only connects two Individual riser.

The riser is not necessarily vertical with the flat board, or inclination is connected on flat board.

In a kind of more preferred embodiment, on the fin, hole is also provided with.

In another kind of more preferred embodiment, the fin can be straight panel fin, it is Wavelike finned in any one Or it is several, wherein, it is described Wavelike finned to be arc, can also form wedge angle (such as acute angle, right angle or blunt in knee Angle), more preferably arc.

Wherein, the dividing plate between two neighboring battery unit can be the son of a dividing plate or multiple sub-dividing plates composition Dividing plate group, for example, multiple sub-dividing plates are intervally arranged between two battery units；The sub-dividing plate structure is tied selected from aforementioned barriers Any one or a few in structure.

In more preferred embodiment of the present utility model, the dividing plate material can be that metal material (includes alloy material Material), any one or a few in polymeric material, and preferably heat-conducting plate, more preferably metal material, such as aluminium alloy, no Rust steel etc..

In an advantageous embodiment, directly contact between the dividing plate and the diaphragm seal of battery unit.

In this utility model the above, the diaphragm seal is preferably, but is not limited to dielectric film.

The sealing membrane material can be fluoropolymer, any one or a few in organosilicon polymer.More preferably Ground, the diaphragm seal include the metal forming of insulating barrier, surface of insulating layer, such as metal plastic film, and preferably aluminum plastic film.The metal Paper tinsel can be a side for being provided only on insulating barrier, or can also be located at two sides of insulating barrier, such as only located at insulation Layer inner surface and/or insulating barrier outer surface；Or the insulating barrier can be provided only on one side of metal forming, or also may be used With located at two sides of metal forming, such as inner surface and/or outer surface of the insulating barrier located at metal forming.

Wherein, the diaphragm seal is preferably the material of resistance to heat transferring medium immersion.If diaphragm seal outer layer is insulating barrier, this material Material may be selected from the insulation silica gel or epoxy resin of resistance to heat transferring medium immersion.If diaphragm seal outer layer is metal level, the metal level material Material is preferably the aluminum alloy materials of resistance to heat transferring medium corrosion；Can such as be selected from：3 line aluminium alloys or other corrosion stabilities are good Aluminum alloy materials.3 line aluminium alloys have good etch resistant properties.

It is highly preferred that the battery unit surrounding is sealed by the diaphragm seal, only battery electrode or electrode connecting end mouth from Stretch out in the diaphragm seal.The connectivity port can be wire, plug, electrode tabs etc. any one or a few.

In a kind of preferred embodiment of the present utility model, the battery heat control device also includes mainboard, the mainboard Socket is provided with, the part that the battery unit is stretched out from diaphragm seal is inserted on mainboard by the socket.

It is highly preferred that the diaphragm seal forms sealing top margin at the top of the battery inner core, the electrode or electrode connect Connect port to stretch out from the sealing top margin, it is highly preferred that sealing at least part of of top margin is inserted into also by the socket On mainboard.

In a kind of preferred embodiment of the present utility model, the battery heat control device also includes housing, the housing Inside is provided with accommodating chamber, and the battery unit is placed in the accommodating chamber of the housing with dividing plate.

It is highly preferred that one side opening of the housing, the mainboard is sealed at the opening.

It is highly preferred that the mainboard is located in the accommodating chamber of the housing, and the accommodating chamber is separated becomes two Individual part, Part I accommodate cell body and dividing plate, Part II accommodate from the diaphragm seal electrode that stretches out and/ Or electrode connecting end oral area point.

It is highly preferred that physical isolation between the Part I and Part II, i.e., Part I within the chamber fluid can not Part II chamber is entered enough.

It is highly preferred that sealing between the socket and " part stretched out from diaphragm seal ".

In more preferred embodiment of the present utility model, the housing also includes fluid intake and fluid issuing.

In more preferred embodiment of the present utility model, in the accommodating chamber of the housing, the accommodating chamber is especially preferably In the Part I of room, containing heat transferring medium, the heat transferring medium can be that (resistivity is more than 10 to electric insulation heat transferring medium¹⁰ Ω cm), or electrically non-insulative heat transferring medium.

The heat transferring medium is illustrated such as：Transformer oil, silicone oil, empty gas and water, engine coolant, glycol/water mixed liquor Deng.Wherein, engine coolant generally selects ethylene glycol and the anti-freeze cooling liquid (abbreviation anti-icing fluid) that water is main component, when So, Propylene Glycol or ethanol also be can select and the anti-icing fluid that water is main component.

In this utility model the above, between the battery unit or between the battery of same battery unit, different Between the battery of battery unit can be arranged in series, be arranged in parallel, or the combination of the two.

In a kind of preferred embodiment of the present utility model, the housing vertical sectional shape can be square, U-shaped, T-shaped, It is trapezoidal, and other are irregularly shaped.

In a kind of preferred embodiment of the present utility model, the sequence that the battery unit is constituted with dividing plate is fixed, Fixing meanss can be colligation fix, through stud fix etc. existing fixed form, or can also be in housing pass through fastener And/or fastening structure is fixed on battery unit and/or dividing plate in housing.

In a kind of preferred embodiment of the present utility model, the fluid passage is preferably from one end to the other side progressively to be expanded Greatly, and more preferably described fluid passage progressively expands from fluid intake one end of housing to fluid issuing one end.It should be understood that , it is described progressively to expand the situation for also including expanding step by step.

In a kind of preferred embodiment of the present utility model, including multiple battery units and dividing plate, and each electricity Number of batteries in pool unit more preferably, can flow to the shell fluid in the shell fluid entrance with identical or different Number of batteries on the direction of outlet, in the battery unit in number of batteries >=next stage battery unit.For example, in housing stream 2-3 battery is set in the battery unit of body porch, and at housing fluid outlet, battery unit arranges 1 battery.

In this utility model the above, the fluid intake and fluid issuing：1) can be different openings, this feelings Under condition, fluid issuing and fluid intake can enter line translation；2) can also be same opening, in this case, the fluid Outlet and fluid intake only represent different use states.

Battery unit and dividing plate spaced setting is formed one or more " sandwich " structures, dividing plate by this utility model Battery unit is separated, and fluid passage is formed between battery unit, it is preferable that the medium in fluid passage can be with electricity Pool unit direct heat transfer.Compared to above-mentioned prior art, this utility model simple structure is with low cost, and heat transfer effect is more preferable, and The strength and stiffness inside battery modules are improve, shock resistance is improved.

Description of the drawings

Fig. 1 is battery heat control device cross-sectional view in a kind of preferred embodiment of this utility model；

Fig. 2 is battery structure schematic diagram in this utility model preferred embodiment；

Fig. 3 .1- Fig. 3 .8 are several diaphragm structure schematic diagrams in this utility model preferred embodiment；

Fig. 4 .1- Fig. 4 .2 are mainboard structure schematic diagram in this utility model preferred embodiment；

Fig. 5 is battery heat control device cross-sectional view in this utility model another kind preferred embodiment.

Specific embodiment

Below, by specific embodiment and referring to the drawings this utility model is described in detail.

With reference to Fig. 1, in a kind of embodiment of this utility model, battery heat control device includes housing 6, the accommodating chamber of housing 6 Interior is provided with mainboard 5, and housing accommodating chamber room is divided into two parts by mainboard 5.

Part below accommodating chamber, is equipped with multiple batteries 1, is provided with dividing plate 2, sets in dividing plate 2 between adjacent cell 1 There is fluid passage 21.

Fig. 2 gives a kind of battery structure schematic diagram, and battery 1 includes 11 outer wrap of battery inner core 11 and battery inner core Diaphragm seal 10, diaphragm seal are aluminum plastic film, are aluminium foil in the middle of aluminum plastic film, and aluminium foil film surfaces externally and internally is respectively equipped with ambroin.Sealing Film 10 forms sealing side 102 in the lateral location of battery 1, forms sealing top margin 101 in tip position, so as to will be battery 1 close Envelope.The sealing can be the method for plastics heat-sealing.Electrode tabs 3 are stretched out from diaphragm seal, for connecting external electrical leads.I.e. The battery is preferably aluminum plastic film soft-package battery.

Reference picture 3.1- Fig. 3 .8, can adopt the dividing plate of various shapes and type in the present embodiment：

Fig. 3 .1 give a kind of dividing plate of flat tube form, including upper and lower two planes.Upper and lower two planes and diaphragm seal 10 Directly contact, and be Heat Conduction Material.Fluid passage is formed between upper and lower two planes, and the fluid passage can pass through Reinforcement is divided into multiple passages.

Fig. 3 .2 give a kind of V-arrangement fin dividing plate, two adjacent panel-shapeds in an angle, the connection of two panels Directly contact between line and diaphragm seal.The angle for being formed is used as fluid passage.

Fig. 3 .3 give a kind of fin dividing plate of trapezoidal attachment structure, including the perpendicular of connection is inclined between flat board and flat board Plate, forms fluid passage between two risers, directly contact between flat board and diaphragm seal.

Fig. 3 .4 give a kind of plain fin dividing plate, including the flat board up and down of parallel riser and the connection of riser two ends, put down Directly contact between plate and diaphragm seal, forms fluid passage between riser.

Fig. 3 .5 give a kind of inclining fin dividing plate, including the riser of connection is inclined between flat board and flat board, with Fig. 3 .3 Difference is that the riser is inclined to same direction.

Fig. 3 .6 give the change different form of plain fin dividing plate, and similar with Fig. 3 .4, upper and lower flat board is directly connect with diaphragm seal Touch.

Fig. 3 .7 give a kind of serrated fin dividing plate, including multiple profile of tooth units, connect inside same row profile of tooth unit Fluid passage is formed, between adjacent profile of tooth unit, arrangement is staggered front to back.The top of profile of tooth unit and base plane are straight with diaphragm seal Contact.

Fig. 3 .8 give a kind of Wavelike finned dividing plate, and the difference with Fig. 3 .4 is that riser is completely multi-section structure.

, when arranging, fluid passage 21 is perpendicular to electrode direction for dividing plate 2.

In addition, as shown in Figure 3 .2, in the dividing plate of fin dividing plate or flat tube form, can be provided with each panel and wear Hole, so as to each fluid passage is connected.It should be noted that this utility model perforation is not to be arranged at V-arrangement fin Dividing plate, it is also possible to be arranged at the available dividing plate of other arbitrary shapes.

For above-mentioned fin dividing plate, due to fluid passage directly contact battery, (i.e. cooling heat transferring physical contact between media is electric Pond), therefore, fin dividing plate is not necessarily Heat Conduction Material, but preferably Heat Conduction Material.

In any of the above technical scheme, heat transferring medium with soft-package battery direct contact heat transfer；Therefore which is relative to existing skill Art, heat exchange efficiency increase significantly.

In the battery system that above soft-package battery is formed with baffle combination, dividing plate played an important role, and on the one hand may be used To separate and support soft-package battery, the mechanical strength and rigidity of battery pack system are improved；Another aspect tissue heat transferring medium flow field, Enhanced heat exchange.

Below preferably, adhesive may also be employed to be bonded together between dividing plate and soft-package battery.So, on the one hand can be with The mechanical strength inside electrokinetic cell bag is further improved, on the other hand can be reduced thermal contact resistance between dividing plate and Soft Roll, be had More efficiently it is delivered on dividing plate and is dispersed in heat transferring medium beneficial to heat.

Reference picture 4.1- Fig. 4 .2, in this utility model, mainboard is provided with multiple sockets, and electrode tabs 3 are stretched from the socket Go out, and seal between the socket and electrode tabs, in the present embodiment, the sealing top margin of battery is together inserted in socket, And sealed.

Socket can be uniformly distributed, such as Fig. 4 .1, but according to circumstances can also be arranged according to region, such as scheme 4.2, form multiple socket areas.

Housing 6 is provided with fluid intake and outlet (not shown), and fluid can as heat transferring medium, and can be electricity Insulation heat transferring medium, such as air, transformer oil, silicone oil, or electrically non-insulative heat transferring medium, such as water, glycol/water are (such as Volume ratio 50/50) mixed liquor, engine coolant or anti-icing fluid etc..Also, in the present embodiment, fluid passage 21 enters from fluid Mouth one end progressively expands to fluid issuing one end.

What above-described embodiment was given is the situation that a battery is only arranged between dividing plate, but this utility model can also be used The battery unit of multiple batteries composition is replacing the battery in Fig. 1.As shown in figure 5, two are provided between dividing plate being arranged side by side Battery 1.

In addition, in this utility model, between each battery unit, number of batteries can also be different, such as in fluid intake one Two batteries are set in the battery unit at end, a battery is set in the battery unit of fluid issuing one end.

In this utility model, as fluid passage is directly contacted with battery, fin dividing plate only can be present as gripper shoe, And heat-conducting plate is needed not to be, the preparation of battery heat control device can be greatly simplified, or in order to further enhance heat transfer effect, wing Piece dividing plate can also be Heat Conduction Material.

Battery is fixed by mainboard socket, in addition, for stationary barrier, dividing plate socket on mainboard, can also be provided with, every Plate is provided with plug, or by colligation, stud through etc. mode, the position between dividing plate and battery is fixed.

As the battery that the present embodiment is adopted is preferably soft-package battery, the mechanical strength and rigidity of soft-package battery itself all compared with Difference, if directly applying on electric automobile power battery system, can not meet anti-vibration requirement.This utility model is using soft Increase the technical scheme of dividing plate (being wherein more preferably saw tooth fin) between bag battery, by soft-package battery and fin dividing plate After combination, technical solutions of the utility model achieve significant effect：On the one hand as saw tooth fin divides to soft-package battery Every and supporting role, the overall vibration strength of battery bag improves；On the other hand coolant flow field, by force is organized by saw tooth fin Change heat exchange, and coolant and soft-package battery direct contact heat transfer, battery bag can be with bigger current versus output not Can be overheated, its power density is obviously improved.

Above specific embodiment of the utility model is described in detail, but which has been only used as example, this utility model It is not restricted to particular embodiments described above.To those skilled in the art, it is any that the utility model carried out Equivalent modifications and replacement are also all among category of the present utility model.Therefore, without departing from spirit and scope of the present utility model Lower made impartial conversion and modification, should all cover in the range of this utility model.

Claims

1. a kind of battery heat control device, it is characterised in that include：Battery unit, dividing plate；Battery unit include battery inner core with And, battery inner core outer wrap by battery inner core seal diaphragm seal, at least part of surface and the sealing of the dividing plate At least part of outer surface directly contact of film, and in dividing plate, it is provided with fluid passage.

2. battery heat control device according to claim 1, it is characterised in that battery heat control device includes at least two Battery unit, battery unit are arranged with baffle interval.

3. battery heat control device according to claim 1, it is characterised in that the dividing plate fluid passage and battery list The diaphragm seal directly contact of unit.

4. battery heat control device according to claim 1, it is characterised in that the dividing plate includes two flat boards, two Flat board is contacted with the diaphragm seal of a battery unit respectively, is provided with the connection being connected at least one flat board between two flat boards Plate, so as to form fluid passage between two flat boards.

5. battery heat control device according to claim 1, it is characterised in that the dividing plate is fin structure, each fin Between be sequentially connected, and can be that parallel or shape is at an angle between adjacent fins, so as to institute is formed between adjacent fins State fluid passage.

6. battery heat control device according to claim 1, it is characterised in that the diaphragm seal includes insulating barrier, insulation The metal forming of layer surface, the insulating barrier are arranged on one side of metal forming or two sides located at metal forming；Or, institute State two sides that metal forming can also be located at insulating barrier.

7. battery heat control device according to claim 1, it is characterised in that the diaphragm seal is by the battery unit four Week sealing, only battery electrode or electrode connecting end mouth are stretched out from the diaphragm seal；Battery heat control device also includes mainboard, The mainboard is provided with socket, and the part that the battery is stretched out from diaphragm seal is inserted on mainboard by the socket.

8. battery heat control device according to claim 7, it is characterised in that the battery heat control device also includes shell Body, the enclosure interior are provided with accommodating chamber, and the battery unit is placed in the accommodating chamber of the housing with dividing plate, described Housing also includes fluid intake and fluid issuing.

9. battery heat control device according to claim 8, it is characterised in that the mainboard is located at the receiving of the housing Within the chamber, and the accommodating chamber is separated become two parts, Part I accommodate cell body and dividing plate, and second Partly accommodate the electrode that stretches out from the diaphragm seal and/or electrode connecting end oral area point, the Part I and Part II it Between physical isolation.

10. battery heat control device according to claim 8, it is characterised in that fluid of the fluid passage from housing Entrance one end progressively expands to fluid issuing one end；Or/and, the housing fluid outlet is flowed in the shell fluid entrance Number of batteries on direction, in the battery unit in number of batteries >=next stage battery unit.

11. battery heat control devices according to claim 1, it is characterised in that described battery heat control device is also wrapped Heat transferring medium is included, the heat transferring medium is water or anti-icing fluid or air or transformer oil or silicone oil.