CN106848343A

CN106848343A - The heat management device of electric heat generating components

Info

Publication number: CN106848343A
Application number: CN201710139898.4A
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-12-08
Filing date: 2015-12-07
Publication date: 2017-06-13

Abstract

A kind of heat management structure and device of electric heat generating components, improve electric heat generating components and heat transferring medium（Such as cooling medium）Between heat exchange efficiency, reached the upper and lower temperature difference for reducing single-unit electricity heat generating components, and between electric heat generating components the temperature difference purpose.

Description

The heat management device of electric heat generating components

Present patent application is divisional application.The application number of original bill is CN 201580042143.1, and the applying date is 2015 In on December 07, in, denomination of invention is：The heat management device of electric heat generating components.

Technical field

Cause the heat management structure and device of the part of heating, more particularly to a kind of knot because of energization the present invention relates to a kind of Structure and device, for lowering the temperature to the part (such as battery, IGBT semiconductor device) for not expecting to generate heat, or for transmitting electricity The heat that heater block is produced.

Background technology

Existing battery liquid cooling system is as shown in figure 1, cooling liquid flows through heat exchanger C and battery under the driving of water pump D The battery heat-conducting plate B of bag A bottoms, the heat of the heat derives of inside battery, but inside battery is needed by the electricity in battery Vertically be delivered to heat on the battery heat-conducting plate B of battery bottom by pole and electrolyte, and heat conduction path is long, causes heat transfer Thermal resistance is big, heat exchange efficiency is low, the vertical direction temperature difference is larger, harsher to the requirement of outside cooling system performance；And battery heat conduction Cooling liquid inside plate B is to flow successively through each battery bag A bottoms, flows through the chilled liquid temperature of each battery heat-conducting plate B It is inconsistent, so as to cause the temperature difference between battery bag A and battery bag A larger, it is impossible to ensure temperature between battery and battery Uniformity.

IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar transistor), is (double by BJT Polar form triode) and MOS (insulating gate type field effect tube) composition compound full-control type voltage driven type power semiconductor, and There are the high input impedance of MOSFET and advantage of both the low conduction voltage drop of GTR.

At present, IGBT single tubes (or IGBT discrete devices) have exposed heat sink (or metal substrate) table mostly Face, the radiating plate surface is the C poles (colelctor electrode) of IGBT, is charging member.IGBT single tubes are usually used in high voltage electric-controlled parts (such as The controller of water-cooled PTC electric heater, water pump controller), often there is excess temperature problem, or it is a bottle of thermal design Where neck.Existing cooling technology is that insulation silica gel pad or a ceramic gasket is provided below in IGBT single tubes, then uses spiral shell Be anchored on IGBT single tubes on mainboard (or coldplate) by silk.Heat-transfer path is：The heat that IGBT tube cores are sent out is transmitted to by C poles Insulation spacer, is then transmitted to mainboard again, and coolant is then passed to again.Due to there is air gap or sky unavoidably on insulation spacer interface Gap, therefore its heat transfer efficiency is relatively low, the cooling effect of IGBT single tubes is poor, causes often to occur IGBT single tubes overtemperature alarm or burns out Problem.

In addition, the IGBT single tubes of also a kind of plastic packaging, its radiating plate surface by plastic packaging, but due to plastic packaging thicker, the heat conduction of layer Ability is poor, and larger thermal contact resistance is also also easy to produce between plastics and mainboard, therefore its cooling effect is also undesirable.

As can be seen here, current IGBT single tube liquid is cold to be indirect liquid-cooled, and its heat-transfer path is more long, and middle thermal resistance is more And it is larger, therefore cause heat transfer efficiency low, heat management problems frequency is existing.

In addition, existing electrical heating uses metal base, then PTC electric heating sheets are being inserted above.Two defects are primarily present, Shortcoming one is the increase in heat transfer intermediate link, and thermal resistance increases, and the thermal efficiency is low, power density is small；Shortcoming two is the increase in sub- part, Increased cost.

The content of the invention

The technical problem to be solved in the present invention is：Overcome the deficiencies in the prior art, there is provided a kind of heat pipe of electric heat generating components Reason construction and device, improves the heat exchange efficiency between electric heat generating components and heat transferring medium (such as cooling medium), has reached reduction The purpose of the temperature difference between the upper and lower temperature difference and electric heat generating components of single-unit electricity heat generating components.The technical problem to be solved in the present invention is also Including：How using available engine nonisulated coolant (such as water base anti-freeze cooling liquid), solve existing cooling effectiveness not The problems such as height, high cost.If the present invention is not specific indicating, described coolant refers both to conductive coolant.The present invention is so-called to be led Electric coolant, refers to that the coolant is nonisulated coolant, the function (including faint conductive function) with conduction, such as Anti-freeze cooling liquid (abbreviation anti-icing fluid) of water, water and ethylene glycol composition etc..

The problem of the heat management existed for the heat produced by existing electric heating device, is directed to the invention provides one kind Electric heating device carries out the construction and device of heat management.

One side of the invention is to provide a kind of battery cooling apparatus, including battery unit, and the battery unit includes Battery inner core, the battery inner core has sealable outer, and at least side of the battery unit is fluid passage, so that battery list Unit can carry out heat exchange by sealable outer and fluid.Fluid (coolant) can be changed with sealable outer directly contact in other words Heat.

The fluid passage can be formed by the gap between adjacent cell, it is also possible to refer to that fluid leads in dividing plate Road.The fluid passage can be identical with electrode direction, or perpendicular to electrode direction but it is also possible to be other directions, this hair Electrode direction is preferably normal in bright.Preferably, the fluid left and right directions flowing or fore-and-aft direction flowing.

In an advantageous embodiment, the battery cooling apparatus include multiple battery units, and battery unit leads to fluid Road interval setting.

In an advantageous embodiment, the battery inner core has shell, and the outer surface of shell and/or inner surface are provided with absolutely Edge layer forms the sealable outer.The sealable outer can be with conductive coolant direct contact heat transfer.

In an advantageous embodiment, the sealable outer is to be wrapped in battery inner core outside and seal battery inner core Diaphragm seal.

In an advantageous embodiment, the battery heat control device include at least two battery units, battery unit with Baffle interval is set.

The battery unit can be the battery pack containing a battery inner core or containing multiple battery inner cores, and can be with It is that each battery inner core is equipped with single sealable outer, or a battery pack shares a sealable outer.

The battery can be any one or a few in disposable battery, rechargeable battery.It is highly preferred that the electricity Pool unit is preferably at least including any one or a few in soft-package battery, duricrust battery, more preferably at least including Soft Roll Battery, more preferably one or more soft-package batteries.

In an advantageous embodiment, the battery unit be soft-package battery, including soft-package battery inner core and Soft Roll electricity The diaphragm seal that soft-package battery inner core is sealed of pond inner core outer wrap；At least part of surface of the dividing plate and the diaphragm seal At least part of outer surface directly contact, and fluid passage is provided with dividing plate.

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

Wherein, the soft-package battery inner core is preferably flat pattern, and the flat pattern is preferably length/thickness and width The value of degree/thickness 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 at least it is 100.

Wherein, the soft-package battery inner core can be provided with diaphragm seal in itself；But the soft-package battery inner core can not also Diaphragm seal is provided with, and can only realize the basic structure of battery functi on.

In an advantageous embodiment, the battery unit is duricrust battery, including duricrust battery inner core and shell, The inner and/or outer surface of shell is provided with insulating barrier and forms insulation crust, i.e., described insulating outer layer.

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, the connecting plate being connected at least one flat board is provided between two flat boards, so as between two flat boards Form fluid passage.

In another 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 form the fluid passage 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 include two groups described in flat board, described two groups respectively with two adjacent batteries The diaphragm seal contact of a battery unit in unit, each group includes 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, hole is also provided with the fin.

In another 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 plate compositions Dividing plate group, for example, multiple sub-dividing plates are intervally arranged between two battery units；The sub-dividing plate structure is selected from aforementioned barriers knot Any one or a few in structure.

In more preferred embodiment of the invention, the dividing plate material can be metal material (including alloy material), gather Any one or a few in compound material, and preferably heat-conducting plate, more preferably metal material, such as aluminium alloy, stainless steel.

In an advantageous embodiment, directly contact between the dividing plate and the diaphragm seal of battery unit.For example, dividing plate with Without any binding agent or tack coat between the diaphragm seal.

Wherein, the diaphragm seal is preferably dielectric film.Wherein, the sealing membrane material can be fluoropolymer, organic Any one or a few in silicon polymer, more preferably described diaphragm seal includes insulating barrier, the metal foil of surface of insulating layer, such as Metal moulds, and preferably aluminum plastic film.

The metal foil can be provided only on a side of insulating barrier, or can also be located at two sides of insulating barrier Face, is such as only located at insulating barrier inner surface and/or insulating barrier outer surface；Or the insulating barrier can be provided only on metal foil one Individual side, or two sides of metal foil can also be located at, such as insulating barrier is located at inner surface and/or the outer surface of metal foil.

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

Preferably, the insulating barrier be made of coating processes or packing technology or pyrocondensation technique or casting be made or Heat pressing process is made.Preferably, the insulating barrier coating method be spraying, brushing, roller coat, dip-coating, dispensing, screen printing, roller coating, The combination of one or several in electrophoresis and blade coating.

Preferably, the insulating barrier material is that ceramics or insulating polymeric material or the macromolecule doped with ceramics are combined Insulating materials.The ceramic material includes being formed by ceramic powders or being formed by ceramic insulation solution.

Preferably, the insulating materials of the resistance to cooling immersion bubble of the insulating barrier material selection.General insulating materials is (as commonly Silica gel) it is applied to coolant (such as anti-icing fluid) and there is technology barrier, it is impossible to enough long-term resistance to anti-icing fluid immersions, such as occur swelling Phenomenon, so as to cause insulation silica gel structure and insulation function to fail.The insulating materials of the so-called resistance to cooling immersion bubble of the present invention, refer to The insulating materials still can keep good insulation function in being soaked in coolant.

Preferably, the insulating barrier material is the insulation silica gel of resistance to cooling immersion bubble or is coated with the poly- of epoxy resin Imide membrane or it is coated with the Kapton or plastic hot melt glue of Teflon.

In an advantageous embodiment, the battery cooling apparatus include mainboard, for assembling battery unit, the mainboard Socket is provided with, the battery unit is inserted on mainboard by the socket.In an advantageous embodiment, the battery list The part that unit stretches 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 be stretched 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.

Wherein, the insulation crust and the sealing means of mounting hole are welding or fast slotting or clamping or rubber Enclose sealing or rubber gasket or liquid fluid sealant or paste fluid sealant is fixed or thread seal is fixed.

Preferably, some steam vents can also be offered on the mainboard, the steam vent is connected with battery safety valve, is ensured In hour of danger battery smooth gas discharge.

In an advantageous embodiment, the mainboard is aluminium alloy or stainless steel or plastics or resin material, described outer Shell is aluminium alloy or stainless steel material or plastics or aluminum plastic film.

In an advantageous embodiment, the battery cooling apparatus include outer shell, for accommodating coolant, coolant stream Cross fluid passage.

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

Wherein, the outer shell includes upper shell and lower house, and upper shell and lower house surround sheath body cavity.

Preferably, the bottom of the insulation crust is hanging, or the insulation crust bottom and lower house (or overcoat Shell) inwall bottom contact.In such scheme, including following situation：If the inwall bottom of lower house (or outer shell) can open Depression is provided with, the bottom of the insulation crust is embedded in the depression of the inwall bottom of lower house (or outer shell), to improve The mechanical strength of whole battery cooling apparatus.Further, if the bottom of the insulation crust and lower house (or outer shell) Inwall bottom is contacted, then the chase of some streamwises, the chase are set in lower house (or outer shell) inner bottom surface For increasing battery bottom coolant flow, such heat transfer effect is more preferable.

Wherein, in a kind of preferred embodiment, battery cooling apparatus, including：

Battery, the battery has shell, and the outer surface of the shell is provided with insulating barrier and forms external insulation shell；

Outer shell, is used to accommodate coolant, and the outer shell is made up of upper shell, lower house, and the upper shell, lower house are surrounded Sheath body cavity, the outer shell is provided with inlet and liquid outlet；

Mainboard, is used to assemble battery, and the mainboard offers several mounting holes；

The battery top seals with the mainboard and installs, and the bottom of the external insulation shell is placed in the sheath body cavity of outer shell In, the bottom of the external insulation shell is hanging, or, the bottom of the external insulation shell contacts with the inwall bottom of lower house.

Preferably, the outer shell and preferably lower house bottom setting depression, the battery bottom insert the depression It is interior to be fixed；Or, the housing and preferably lower house bottom are provided with the fixture with slot hole, the battery insertion Fixed in the slot hole of the fixture.

Preferably, streamwise is provided with chase in the outer shell internal backplane.These chases are set and are conducive to institute State the cooling of battery bottom.

Preferably, along the flow direction of coolant, between the battery is between in coolant flow direction Away from gradually expanding.So, can ensure that upstream and downstream battery cooling effect reaches unanimity.

Preferably, some nested fins are provided between the battery.These fins can help to fixation between battery, Process organization and enhanced heat exchange.

In an advantageous embodiment, the battery unit top seals with the mainboard and installs, the insulating outer layer Bottom is placed in the sheath body cavity of outer shell, and the bottom of the insulating outer layer is hanging or is contacted with sheath body cavity inner wall bottom, And preferably contacted with the inwall bottom of lower house.

Wherein, the outer shell is provided with fluid intake (such as inlet) and fluid issuing (such as liquid outlet).

In an advantageous embodiment, the battery cooling apparatus also include dividing plate, at least part of surface of the dividing plate With at least part of surface directly contact of the sealable outer, and the fluid passage is provided with the dividing plate.

In one preferred embodiment of the invention, the dividing plate fluid passage can be straight with the dielectric film of battery unit Contact, it is also possible to not with the dielectric film directly contact of battery unit.Wherein, the dielectric film of so-called fluid passage and battery unit Directly contact, that is to say that face contacted with battery unit dielectric film in dividing plate, and coolant is contacted with dielectric film.Even if in addition, Fluid passage not with dielectric film directly contact, the side directly contact of coolant and battery unit.So, conductive coolant can With battery unit direct contact heat transfer.

In one embodiment, accommodating chamber is provided with inside the outer shell, the battery unit is placed in institute with dividing plate State in the accommodating chamber of outer shell.

It is highly preferred that the mainboard is located in the accommodating chamber of the outer shell, and the accommodating chamber is separated turns into Two parts, Part I accommodates cell body and dividing plate, and Part II accommodates the electrode stretched out from the diaphragm seal 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 chamber fluid inside can not Enough enter Part II chamber.

In more preferred embodiment of the invention, in the accommodating chamber of the outer shell, the accommodating chamber is especially preferably Part I in, containing heat transferring medium, the heat transferring medium can be electric insulation heat transferring medium (resistivity be more than 10¹⁰Ω· ), or electrically non-insulative heat transferring medium cm.

The heat transferring medium citing is such as：Transformer oil, empty gas and water, engine coolant, glycol/water mixed liquor etc..Its In, water and ethylene glycol volume ratio are preferably (40-65): (35-60), more preferably (45-60): (40-55), more preferably (50-55)∶(45-50)。

In the above of the present invention, between the battery unit or between the battery of same battery unit, different batteries Can be to be arranged in series, be arranged in parallel or the combination of the two between the battery of unit.

In one preferred embodiment of the invention, the outer shell vertical sectional shape can be square, U-shaped, T-shaped, ladder Shape and other irregular shapes.

In one preferred embodiment of the invention, the sequence that the battery unit is constituted with dividing plate is fixed, fixed Method can be that colligation is fixed, fixes etc. existing fixed form through stud, or can also be in housing by fastener and/or Be fixed in housing for battery unit and/or dividing plate by fastening structure.

In one preferred embodiment of the invention, the fluid passage is preferably and from one end to the other side progressively expands, And more preferably described fluid passage progressively expands from fluid intake one end of outer shell to fluid issuing one end.It should be understood that It is that described progressively expansion also includes situation about expanding step by step.

And each battery list in one preferred embodiment of the invention, including multiple battery units and dividing plate, Number of batteries in unit more preferably, can be flowed to the shell fluid and gone out with identical or different in the outer shell fluid intake On the direction of mouth, the number of batteries in the battery unit in number of batteries >=next stage battery unit.For example, in outer shell stream 2-3 battery is set in the battery unit of body porch, and outer shell fluid outlet battery unit sets 1 battery.

In one preferred embodiment of the invention, the battery is a plurality of, and a plurality of battery sizes are identical, or The a plurality of batteries of person are divided into two classes, and first kind cell cross-section product is 2 times of Equations of The Second Kind cell cross-section product, and first kind battery The position for closing on the fluid intake is arranged in, Equations of The Second Kind battery-arrangements are in the position for closing on the fluid issuing.Or it is described A plurality of batteries are divided three classes, and the cross-sectional area of first kind battery is 1.5 times of Equations of The Second Kind cell cross-section product, first kind battery Cross-sectional area be the 3rd class cell cross-section product 3 times, the first kind battery, Equations of The Second Kind battery and the 3rd class battery are successively Arranged to the position for closing on fluid issuing from fluid inlet is closed on.

In the above of the present invention, the fluid intake and fluid issuing：1) can be different openings, such case Under, fluid issuing and fluid intake can enter line translation；2) can also be same opening, in this case, the fluid goes out Mouth and fluid intake only represent different use states.

Second aspect of the invention is to provide a kind of power device cooling device, including power device body (such as power half Conductor electrode bar assembly body), the radiating plate surface of the power device body is provided with the first insulating barrier, first insulation Layer can be with conductive coolant direct contact heat transfer.The heat sink can be the heat radiation metal substrate of power device single tube, Can refer to the electrode strip or electrode slice of power semiconductor electrode bar assembly.

Wherein, before surface sets insulating barrier, described power device is a kind of powered charging member in surface.

Wherein, it can include semiconductor chip and the electrode positioned at semiconductor chip both sides to invent the power device Bar, described semiconductor chip includes igbt chip or/and diode chip for backlight unit.

Generally there is exposed radiating plate surface, these radiating plate surfaces are generally also powered on these power device bodies Surface, such as the bottom surface of IGBT single tubes is exposed C poles heat sink, the heat that the tube core of IGBT is sent out mainly by the heat sink to Distribute outward.

Or, further, described charging member is power device single tube (or power semiconductor single tube, such as IGBT Single tube etc.).

Wherein, the electrode strip of power semiconductor electrode bar assembly is preferably the electrode slice of sheet.Further, electrode slice Quantity is 2 or 3 or 5.Including following situation：The connection electrode bar of collector and emitter is electrode slice, grid Connection electrode bar be strong zygonema；Or, the connection electrode bar of all colelctor electrodes, emitter stage and grid is electrode slice.Just The material of negative electrode bar/electrode slice can be stainless steel or aluminium alloy or copper.

Further, power semiconductor electrode bar assembly is provided between the electrode strip of semiconductor chip both sides Two insulating barriers.

Wherein, the method to set up of the insulating barrier is for coating or wraps up.The so-called coating of the present invention, can also claim coating, refer to A kind of general designation of adhesive or coating application technique.

The painting method can be spraying or dip-coating or brush or roller coat or screen printing.Wherein, more preferably Using spraying or dip-coating.Insulating materials can be attached to efficient uniform the radiating plate surface by way of spraying or dip-coating On.

In an advantageous embodiment, the material of the insulating barrier is the insulating materials of resistance to cooling immersion bubble.It is so-called cold-resistant But the insulating materials of immersion bubble, refers to remain to keep good electric insulation functions during the insulating materials is immersed in coolant.Wherein, The insulating materials of the resistance to cooling immersion bubble is silica gel or plastic hot melt glue or insulating ceramics coating, such as watt gram insulation Silica gel Elastosil RT 728A/B or will contain prestige China ZS-1091 high-temperature insulation ceramic coatings.

Further, the silica gel can add insulating heat-conductive filler, such as AlN ceramic particle filler, can improve insulating barrier Thermal conductivity factor.

Further, the power device cooling device also includes conductive coolant.The body immersion of the power device In coolant.Wherein, the coolant is preferably water base coolant, so-called water base coolant refer to the coolant matrix into It is divided into water；More preferably main component is the anti-freeze cooling liquid of water and ethylene glycol.The anti-freeze cooling liquid commonly used on such as automobile The ethylene glycol mixture of for about 50% water+about 50%, the separately additive such as also some other preservative, corrosion inhibiter.

In an advantageous embodiment, the power device cooling device also includes mainboard, described this position of power device The master is located in the electrical connection section (such as lug of electrode strip) on the side of the mainboard, the power device body with the external world The side of plate, and encapsulation process is carried out between the pin and the mainboard, such as the pin bottom of IGBT single tubes or whole positions In the opposite side of the mainboard.So, when pin and outside are electrically connected simultaneously operational heat, mainboard lower section is full of cooling Liquid, the single tube body is efficiently cooled down in being all immersed in coolant, and the pin of single tube is isolated with coolant ensures electric insulation.

In an advantageous embodiment, the power device cooling device also includes liquid collecting cavity or outer shell, the liquid collecting Chamber or the outer shell constitute coolant accommodating cavity with mainboard sealing, and the power device body is located at the coolant In accommodating cavity, inlet and liquid outlet are provided with the liquid collecting cavity or the outer shell.Such as, the liquid collecting cavity or described Outer shell can be the lower shell body of liquid PTC electric heater or the spiral case of water pump.

In an advantageous embodiment, the power device cooling device also includes dividing plate, fluid is provided with dividing plate and is led to Road, at least part of outer surface of the insulation crust of the charging member and at least part of surface directly contact of the dividing plate.Institute Stating dividing plate can play a part of charging member of the support with insulation crust, may also function as tissue coolant flow field and improve to exchange heat Effect.It is highly preferred that the charging member is set with baffle interval.

Above constructional device is also applied for liquid PTC electric heater.

Third aspect of the present invention is to provide a kind of PTC electric heater units, including PTC electrodes bar assembly and is wrapped in PTC The first insulating barrier on the outside of electrode bar assembly；The PTC electrodes bar assembly for being enclosed with the first insulating barrier can be with conductive coolant Direct contact heat transfer.

Wherein, PTC electrodes bar assembly includes some PTC-elements and is arranged at the electrode strip of PTC-element both sides.

Wherein, the first insulating barrier is formed by the insulating materials that resistance to cooling immersion is steeped.

In an advantageous embodiment, PTC electric heater units include PTC electrical heating group bodies, the PTC electrical heating group body bag PTC electrode bar assemblies are included, described PTC electrodes bar assembly includes positive electrode bar, PTC fever tablets group, negative electrode bar, the PTC Fever tablet group is made up of some PTC fever tablets；

Described PTC fever tablet groups are arranged between positive electrode bar and negative electrode bar；The positive electrode bar and negative electrode bar are each Outside side is provided with the first insulating barrier.

The PTC electrodes bar assembly, the first insulating barrier constitute the first single piece；The PTC electricity heat-producing machines are logical including fluid Road, so that fluid can carry out heat exchange by the first insulating barrier.Fluid and the first insulating barrier direct contact heat transfer in other words.

Wherein it is preferred to, the fluid passage forms PTC electrical heating groups with first single piece successively interval setting Body.

Further, the outermost of preferably described PTC electrical heating group body is fluid passage.

Wherein described positive electrode bar includes electrode film, positive pole ear；Wherein described negative electrode bar includes negative electrode plate, bears Pole lug；Described PTC fever tablet groups are arranged between electrode film and negative electrode plate；The electrode film and negative electrode plate are each The first insulating barrier is provided with from outside side.

Wherein, the PTC fever tablets in PTC electrodes bar assembly are preferably connected by gluing mode with positive and negative electrode piece；When So, can also be connected by the way of compressing.

Further, described PTC electricity heat-producing machines also include mainboard, and the mainboard has internal cavity；Described PTC electrical heating Group body is arranged in the internal cavity of mainboard, and forms sealing structure between mainboard inwall.Or, described PTC electrode strips Mainboard is passed through with extraneous electrical connection section (such as lug) on component, and sealing structure is formed between mainboard inwall.

Further, the outer wrap of the mainboard has the shell for accommodating mainboard and PTC electrical heating group bodies.It is described outer The preferred plastic casing of shell, and preferably using the plastic casing for surrounding form up and down.

Further, some fins are provided with the fluid passage, with enhanced heat exchange performance.The fin can be each The fin of the form of kind, such as light straight fins, saw tooth fin, perforated fin etc..

Further, first insulating layer material is the insulating materials of resistance to heat exchanging liquid immersion.This material has resistance to changing The insulation silica gel of hot liquid immersion, the Kapton for being externally coated with epoxy resin, etc..

Heat exchanging liquid used by PTC electricity heat-producing machine of the present invention preferably uses water base coolant, such as pure water or conventional The host component of anti-icing fluid, wherein anti-icing fluid is for about 50% ethylene glycol+about 50% water.

Beneficial effects of the present invention：Arranged using sandwiched type structure, fluid passage is located between electric heat generating components, heat transfer Efficiency high, power density are big, compact conformation, small volume, low cost, and assemble simple.

Brief description of the drawings

Fig. 1 is existing battery cooling system structural representation；

Fig. 2 is a kind of battery unit schematic diagram of the invention；

Fig. 3 is that battery unit shown in Fig. 2 installs sealing gasket, the battery structure schematic diagram of felt pad；

Fig. 4 is the structural representation that battery unit shown in multiple Fig. 2 is arranged on mainboard；

Fig. 5 is the structural representation being tightly connected with mainboard after battery unit shown in Fig. 4 is installed on mainboard；

Fig. 6 is a kind of outer shell schematic diagram of the invention；

Fig. 7 is a kind of sealing means of battery；

Fig. 8 is another sealing means of battery；

Fig. 9 is battery heat control device cross-sectional view in present invention another kind embodiment；

Figure 10 is battery structure schematic diagram shown in Fig. 9；

Figure 11 (including Figure 11-1 and Figure 11-2) is several diaphragm structure schematic diagrames in embodiment illustrated in fig. 9；

Figure 12 (including Figure 12-1 and Figure 12-2) is mainboard structure schematic diagram in embodiment illustrated in fig. 9；

Figure 13 is battery heat control device cross-sectional view in present invention another kind embodiment；

Figure 14 is PTC electric heater structural representation in an embodiment of the present invention；

Figure 15 is semiconductor heat-dissipating group body structural representation in an embodiment of the present invention；

Figure 16 is semi-conducting electrode bar assembly structural representation in embodiment illustrated in fig. 15；

Figure 17 is semi-conducting electrode single piece structural representation in embodiment illustrated in fig. 15；

Figure 18 is the sectional views of semi-conducting electrode single piece A-A faces shown in Figure 17；

Figure 19 is a kind of IGBT single tube side views of painting insulating layer coating in surface in embodiment；

Figure 20 is the IGBT single tube cooling device schematic diagrames that insulating layer coating is applied using the surface shown in Figure 19；

IGBT module cooling device schematic diagram in a kind of embodiments of Figure 21.

Specific embodiment

Embodiment 1

As shown in Figures 2 to 6, a kind of battery cooling apparatus, including：Battery 1, battery 1 has shell, and the outer surface of shell is provided with Insulating barrier forms external insulation shell 2 (equivalent to sealable outer).Shell can be using metal shell, non-metal shell or compound Material, composite can for example select aluminum plastic film.

Fig. 6 gives a kind of structure of outer shell 4, and outer shell 4 is provided with inlet and liquid outlet.Preferably, outer shell 4 It is made up of upper shell 41, lower house 42.Wherein upper shell include plastic foil or metallic plate, for seal protection stretch out in mainboard it On battery electrode and the part such as wire.

Mainboard 3, is used to assemble battery 1, and mainboard 3 offers several mounting holes.The top of battery 1 seals with mainboard 3 and installs, Mainboard 3 is installed and forms cavity with the sealing of outer shell 4, and the cavity is used to accommodate coolant, and the bottom of external insulation shell 2 is placed in In the cavity.Technical scheme therein can be：The bottom of external insulation shell 2 is hanging, or, the external insulation shell 2 Bottom contacted with the inwall bottom of lower house 42 (wherein, including by external insulation shell 2 be embedded into be arranged on it is recessed on lower house 42 It is described to be recessed for further self-contained battery in falling into).Further, set some along flowing side in lower house inner bottom surface To chase, the chase be used for increase battery bottom coolant flow, such heat transfer effect is more preferable.Mounting hole can be by punching Swaging into, it is also possible to by injection or cutting formed.

In the present embodiment, to coolant (or heat transferring medium) without electric insulation in terms of limitation, therefore its selection face it is non- Chang Guang, can select various water base coolants, and preferably (such as, its bulk composition is for about 50% ethylene glycol+about 50% to anti-icing fluid Water, and the preservative containing disodium hydrogen phosphate and Sodium Benzoate etc, phenylpropyl alcohol triazole antirust agent and pigment etc.), it is this antifreeze Liquid freezing point be less than subzero 36 DEG C, 108 DEG C of atmospheric boiling point, thermal conductivity factor be more than 0.4W/mK, viscosity be less than 1.4mPas, therefore its Suitable for most of climatic environments, thermal conductivity is good, good fluidity and with low cost, its application and supporting highly developed, is conduct The optimal selection of electrokinetic cell coolant.

Such as following table, either thermal conductivity or mobility, the performance of the insulating and cooling liquid such as transformer oil and anti-icing fluid and pure Water is compared to far short of what is expected.More fatal, transformer oil is combustible, if for power battery of electric vehicle cooling, existing very big Potential safety hazard.And anti-icing fluid is non-flammable, and battery external insulation layer can also be adopted as anti-flammability material, such as coating epoxy The Kapton of glue does insulating barrier, just can well protect battery, prevents burning from spreading.

In the present embodiment, the external insulation layer material selection of battery case has resistance to anti-icing fluid, high-low temperature resistant and long-life The insulating materials of feature.Such as use the insulating tape with Kapton as basement membrane, its heatproof at least more than 100 DEG C, The heat resistant requirements of battery can be met completely；Polyimide base film both sides coat epoxy cement glue, epoxy cement glue it is water-fast Immersion ability with resistance to anti-icing fluid is good, and its technique is simple and reliable, and cost is also relatively low.Its performance is such as Under：Dielectric strength is more than 1800V, and heatproof is more than 100 DEG C, and its aging life-span is more than 10 years, and flame retardant rating is in UL94V-0 grades, glue Water absorption rate is small after band curing molding；Above performance can meet the technical requirements of battery case External Insulation layer completely.

In actual production in enormous quantities, insulating barrier can be also set by coating processes, such as spraying or the resistance to anti-icing fluid of dip-coating The organic silica gel of high-low temperature resistant, this is beneficial to the technological design that automation is produced in enormous quantities.Its advantage is production efficiency Increase substantially, and produce steady quality reliability in batches, production cost will be greatly lowered.

Insulating materials used can further lift its thermal conductivity by adding heat filling, so as to ensure battery heat Management is more efficient.

In the present embodiment, external insulation shell 2 is sealed with mounting hole and fixed, and fixing seal mode is：External insulation shell 2 with The sealing means of mounting hole for welding or it is fast insert or clamping or seal with elastometic washer or rubber sheet gasketing sealing or Liquid fluid sealant or paste fluid sealant are fixed or fixed using thread seal as shown in Figure 5.Wherein preferably pass through rubber Sealing ring or rubber sheet gasketing compress sealing, along with thread seal as shown in Figure 5 is fixed.

As shown in Figures 3 to 5, the electrode on battery 1 is in bolt shape, and electrical insulation pad 12 and close is set with two electrodes Seal 11 (if sealing ring is provided simultaneously with electric insulation functions, only needs sealing ring), and has one in the upper end of battery 1 Then safety valve 13, two electrodes of battery 1 are fixed through the mounting hole attaching nut on mainboard 3, the upper end sealing of battery 1 Face (sealing positive and negative electrode or positive and negative electrode pole 5, safety valve 13) forms sealing and mainboard 3 between and coordinates.

As shown in Figure 7 and Figure 8, to the sealing means of battery 1：By positive and negative electrode pole 5, safety valve 13 (or air bleeding valve) Sealed by sealing ring 11, and isolated with coolant.

This sealing means both can guarantee that reliable insulated enclosure (the such as sealing pressure between positive and negative electrode and conductive coolant Power is up to more than 2-5bar), the body of battery 1 can be allowed to try one's best during many parts are immersed in coolant again reach optimal cooling effect Really, while the internal gas of battery 1 are by the steam vent on safety valve 13, end part seal face and mainboard 3 when also having ensured dangerous Pernicious gas is effectively discharged out, so as to ensure the safe and reliable of battery pack.Certainly, sealing means also have many kinds, present invention bag Various sealing means are included, certain specific sealing means is not limited to.

In addition, the distance between each pair of mounting hole on mainboard 3 can arbitrarily be set, i.e. the distance between battery 1 can be with It is any to set, therefore ensured that battery pack structure is compact while realizing that all battery-efficients are uniformly cooled down, i.e., battery pack possesses Very big volumetric power density.

The upper end of this battery 1 also helps after-sales service by way of screw threads for fastening is sealed.When certain list in battery pack When individual battery 1 breaks down, the battery 1 can be easily dismantled down, then can easily assembled up again.This Plant design and facilitate repeated multiple times dismounting, material is repeatable to be utilized.

Mainboard 3 is aluminium alloy or stainless steel or plastics or resin material, and the external insulation shell is aluminium alloy or stainless steel Material or plastics or aluminum plastic film, the external insulation shell are square or circle.

Several proper alignments of battery 1 are sealed with mainboard 3 and installed, or, several batteries 1 are staggered close with mainboard 3 Envelope is installed.

The present embodiment derives battery 1 with being applicable not only to the heat efficient uniform for producing electrokinetic cell 1, be also applied for by Outside heat imports battery 1 (being heated to battery 1).

In a preferred embodiment, battery 1 is a plurality of, and the size of a plurality of batteries 1 is identical；Or a plurality of batteries 1 are flat Be divided into two classes, the cross-sectional area of first kind battery is two times of Equations of The Second Kind cell cross-section product, and first kind battery-arrangements in The position of neighbouring inlet, Equations of The Second Kind battery-arrangements are in the position of neighbouring liquid outlet；Or a plurality of batteries 1 are equally divided into three classes, The cross-sectional area of first kind battery is 3/2nds times of Equations of The Second Kind cell cross-section product, the cross-sectional area of first kind battery is the Three times of three class cell cross-sections product, first kind battery, Equations of The Second Kind battery are arranged in sequence with since the position of neighbouring inlet With the 3rd class battery.

Immersion type cooling cannot be only used for rectangular cell, be also applied for circular batteries.

The size of each mounting hole of mainboard 3 is adapted with the size of the external insulation shell 2 of corresponding each class battery.

Flow direction according to cooling liquid understands that the chilling temperature around the battery 1 of first row is minimum, and the temperature of battery 1 is most It is low, good cooling results, therefore the cross-sectional area for reducing battery 1 in batches, the radial direction heat transfer resistance of battery 1 can be reduced, reduce electricity Temperature difference between the core inner of pond 1 and outside cooling liquid, can by way of reducing the cross-sectional area of cooling liquid downstream battery 1 Balance the central temperature of all batteries 1 in the inside of outer shell 4, to keep battery 1 performance of itself to reach optimum efficiency, in reality During operation, the inlet and liquid outlet of cooling liquid can also be switched over by regular (1 hour or 1 day), to keep runner The front and rear Temperature Distribution of battery 1 is evenly.Spacing between battery 1 be it is uniform, spacing be 2mm-5mm between, adjacent sidewall Battery 1 and the distance between side wall between 5mm-7mm；Spacing between battery 1 may also be non-equidistant.

To sum up, the invention provides the technical scheme of following battery cooling：Battery is immersed in anti-freeze cooling liquid, vertically Spacing between the battery of coolant flow direction progressively expands along coolant flow direction, the electricity in coolant flow direction The cross-sectional area in pond progressively reduces, the battery Heterogeneous Permutation in coolant flow direction, periodically the technology such as switching inlet and outlet Scheme.These technical schemes can be used alone, it is also possible to comprehensive to use.These technical schemes can reach following technique effect： Heat exchange efficiency between battery and coolant is (or heat transfer temperature difference is smaller, and the resistance to coolant temperature of battery is improved in other words) higher, electricity More uniform temperature (such as within reachable ± 1 DEG C of the temperature difference) between pond, the more uniform temperature between battery top and the bottom.These technologies are imitated Fruit will cause that battery is longer, and the attenuation of battery is smaller after longtime running, and state is more homogeneous.Battery coolant is allowed Temperature can suitably improve, so as to be the cooling of battery coolant and cooperate with and provide bar with the cooling of motor electronic coolant Part, this will greatly simplify cooling system for electric vehicle.

In addition, in the present embodiment, or battery shell inner surface be provided with insulating barrier formed insulation crust.This Embodiment first set insulating barrier before battery cell shaping in the shell of battery, and common battery cell is then carried out again Assembling, so as to form the battery with interior insulation shell；Followed by the battery cooling apparatus as described in the above of embodiment 1 Assembling.

Embodiment 2

Fig. 9 gives a kind of heat control device of soft-package battery, including housing (or outer shell) 4, in the accommodating chamber of housing 4 Mainboard 3 is provided with, the accommodating chamber of housing 4 is divided into two parts by mainboard 3.

Part below accommodating chamber, is equipped with multiple batteries 1, is provided between adjacent cell 1 in dividing plate 6, dividing plate 6 and set There is fluid passage 61.

Reference picture 10, (Soft Roll) battery 1 includes the diaphragm seal 20 of battery inner core 10 and the outer wrap of battery inner core 10, sealing It is aluminium foil in the middle of aluminum plastic film, aluminum plastic film that film 20 is, aluminium foil surfaces externally and internally is respectively equipped with ambroin (equivalent in embodiment 1 Insulating barrier).Diaphragm seal 20 forms sealing side 202 in the lateral location of battery 1, and sealing top margin 201 is formed in tip position, from And seal battery 1.The sealing can be the method for heat-sealing.Electrode tabs 5 stretch out from diaphragm seal, for connecting external electrical Wire.

Reference picture 11, can be using various shapes and the dividing plate of type in the present embodiment：

Figure 11-1 gives a kind of dividing plate of flat tube form, including upper and lower two planes.Upper and lower two planes are straight with diaphragm seal 10 Contact, and be Heat Conduction Material.Fluid passage is formed between upper and lower two planes, and the fluid passage can be by adding Strong muscle is divided into multiple passages.

Figure 11-2 gives a kind of serrated fin dividing plate, including multiple tooth form units, connects inside same row tooth form unit It is logical to form fluid passage, it is staggered front to back arrangement between adjacent tooth form unit.The top and bottom plane and diaphragm seal of tooth form unit Directly contact.

, when setting, fluid passage 61 is perpendicular to electrode direction for dividing plate 6.

In the dividing plate of fin dividing plate or flat tube form, perforation can be provided with each panel, so as to by each fluid Channel connection.

For above-mentioned fin dividing plate, due to fluid passage directly contact battery, therefore, fin dividing plate is not necessarily heat conduction Material, but preferably Heat Conduction Material.

Reference picture 12, in the present invention, mainboard is provided with multiple sockets, and electrode tabs 5 stretch out from the socket, and described Sealed between socket and electrode tabs 5, in the present embodiment, the sealing top margin 201 of battery is together inserted into socket, and is carried out close Envelope.

Socket can be uniformly distributed, such as Figure 12-1, but according to circumstances can also be arranged according to region, such as scheme 12-2, forms multiple socket areas.

Housing 4 is provided with fluid intake and fluid issuing (not shown), and fluid can be as heat transferring medium, such as water, second Glycol/water (such as volume ratio 50/50) mixed liquor, engine coolant.Also, in the present embodiment, fluid passage 61 is from fluid Entrance one end progressively expands to fluid issuing one end.

What above-described embodiment was given is the situation for battery that only sets between dividing plate, but the present invention can also use multiple The battery unit of battery composition replaces the battery in Figure 10.As shown in figure 13, two are provided between dividing plate to be arranged side by side Battery 1.

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

In the present invention, because fluid passage directly contacts with battery, fin dividing plate only can exist as supporting plate, and nothing Need to be heat-conducting plate, can greatly simplify the preparation of battery heat control device, or in order to further enhance heat transfer effect, fin every Plate can also be Heat Conduction Material.

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

Because the battery that the present embodiment is used is soft-package battery, the mechanical strength and rigidity of itself are all poor, if directly It is applied on electric automobile power battery, then can not possibly meets anti-vibration requirement.Conventional method using coldplate (see CN102163758A) it is laminated with soft-package battery and the mode in outside plus bandage or run through bolt is fixed.And the present invention increase every After plate, dividing plate has played great effect；And preferably, using the adhesive of resistance to coolant by between dividing plate and soft-package battery It is bonded together.So, the mechanical strength inside electrokinetic cell bag on the one hand can be improved, on the other hand can reduces dividing plate and soft Thermal contact resistance between bag, is conducive to heat to be more efficiently delivered on dividing plate and be dispersed into heat exchanging liquid.Therefore by Soft Roll electricity After the combination of pond and dividing plate (more preferably saw tooth fin), electrokinetic cell bag achieves very big effect：On the one hand due to Separation and supporting role of the saw tooth fin to soft-package battery, the overall vibration strength of battery bag improve；On the other hand by saw Tooth fin tissue coolant flow field, enhanced heat exchange, and coolant directly with soft-package battery contact heat-exchanging, battery bag can be with bigger Current versus power output without overheating, its power density is obviously improved.

In the embodiment 2, the spaced setting of battery unit and dividing plate is formed into one or more " sandwich " structures, Dividing plate separates battery unit, and fluid passage is formed between battery unit, it is preferable that medium in fluid passage can be with With battery unit direct heat transfer.Compared to above-mentioned prior art, simple structure of the present invention, with low cost, heat transfer effect is more preferable.

By the design of above-described embodiment 1 or 2, the present invention has the advantages that：The battery cooling apparatus or thermal control The insulating barrier of device processed from resistance to coolant insulating materials, therefore can with coolant direct contact heat transfer so that insulating barrier with it is cold But extra waterproof layer or sleeve pipe is not needed between liquid, the heat management of battery-efficient has further been ensured and has been reduced cost.

Beneficial effects of the present invention also include, because be arranged on insulating barrier on battery case by the present invention, therefore can select stream The dynamic and good water base coolant of heat exchange property.Although water base coolant is conductive medium, its mobility, thermal conductivity and temperature The synthesis hot property such as applicability is optimal, and its cost is also cheaper than insulating and cooling liquid (such as transformer oil).The present invention is by battery It is immersed directly in anti-icing fluid or water, high efficient heat exchanging can be carried out.

The present invention also has the advantages that：For the battery for being provided with safety valve, by opening up installation on mainboard Hole and steam vent, battery positive and negative electrode pass through mounting hole nut screwing clamping, and battery safety valve connects with steam vent, battery top and Sealing is compressed by rubber seal or rubber sheet gasketing between mainboard.This structure design so that the spacing between battery Can both ensure that battery was reliably cooled down with arbitrarily devised, compact efficient between battery had been ensured again.The assembly or disassembly of battery is very square Just it is quick, and repeated multiple times can dismount without loss material.

It is non-equidistant design such as between battery, dislocation design, non-in addition, present invention also offers various advantageous measures Cross section Design, outer shroud base set depression, between chase, battery set fin, import and export periodically switch etc. measure, enter one Step ensures each battery heat transfer efficient, uniform, the Mechanical Reliability and compactedness of battery cooling apparatus.

Battery cooling apparatus technical scheme of the invention can apply to field of traffic, communication field, generating equipment energy storage, The fields such as electrical equipment energy storage.Go for various batteries, such as lead-acid battery, Ni-MH battery, lithium ion battery, lithium sulphur electricity Pond, metal-air battery etc..The shape in outer shell section is not limited to rectangle, may also be the overcoat of the other forms such as T-shaped, U-shaped Shell.

Embodiment 3

Reference picture 14, PTC electrodes bar assembly includes positive electrode bar, negative electrode bar and some PTC being sandwiched between positive and negative electrode Element.Positive and negative electrode bar top respectively has one with the extraneous lug 5 for electrically connecting.As shown in figure 14, on PTC electrode bar assemblies, The insulation silica gel that all outer surfaces in addition to lug are coated with resistance to cooling immersion bubble (is similar to outside external insulation as insulating barrier 2 Shell).That is PTC electrodes bar assembly surrounding, top and bottom has been coated with the insulating barrier 2 of the resistance to coolant, so as to form PTC electricity add Hot core body.The insulation silica gel that the material of insulating barrier 2 is steeped using resistance to cooling immersion, this silica gel can be remained in that in being soaked in coolant Good electric insulation functions.

Then, each lug 5 of the PTC electrical heating core bodys is passed through the peace of plastic main panel 3 (mainboard as shown in figure 12) Dress hole is stretched out on mainboard 3, and sealing is carried out between lug 5 and mounting hole (as sealed using electric insulating sealant). Plastic casing 4 is made up of upper shell 41 and lower house 42, lower house 42 be provided with the direction of Figure 14 inlet and Liquid outlet (not shown on figure).PTC electrical heating core bodys are placed in the cavity of lower house 42 of plastic casing 4.Mainboard 3 and lower casing The upper edge of body 42 forms reliable sealing (such as adding bolt and nut to be fastenedly connected sealing with rubber seal) along surrounding.Then will be upper Housing 41 is covered on mainboard 3 and fit sealing.So form liquid PTC electric heater device of the invention.

The PTC electric heater of the present embodiment, from heat generating components (PTC-element) to the heat transfer road of heat transfer medium (coolant) Footpath is shorter more efficient.

Embodiment 4

This gives a kind of semiconductor cooling device, the semiconductor cooling device includes semiconductor heat-dissipating group body, described Semiconductor heat-dissipating group body alternates stacking by two groups of semi-conducting electrode single pieces and three groups with the semi-conducting electrode single piece The serrated fin composition of setting；The finless parts surface directly connects with the semi-conducting electrode single piece partial outer face Touch, and cooling passage is provided with the fin；Wherein, the semi-conducting electrode single piece is by semi-conducting electrode component and sets The first insulating barrier being placed on the outside of the semi-conducting electrode component is constituted, wherein, the semi-conducting electrode component includes semiconductor Chip and three electrode slices for being arranged at the upper and lower both sides of the semiconductor chip.In present embodiment, lug and electrode are also adopted by The electrode strip that piece is integrated.

Shown in Figure 15-17, the upper surface of downside electrode slice 551 is respectively disposed with an igbt chip 506 and two poles Die 507, downside electrode slice 551 is electrically connected by the second soldering-tin layer 505b with the colelctor electrode of igbt chip 506, by first The negative pole electrical connection of soldering-tin layer 505a and diode chip for backlight unit 507；The left electrode slice 521 in upside passes through the 4th soldering-tin layer 502b and IGBT The emitter stage electrical connection of chip 506, is electrically connected by the positive pole of the 3rd soldering-tin layer 502a and diode chip for backlight unit 507；The right electricity in upside Pole piece 531 is electrically connected by the 5th soldering-tin layer 503a with the grid of igbt chip 506.The electrode slice 521 of upside the right and left, Also need to be isolated with the second insulating barrier 504 between 531.If the spacing very little between power-on and power-off pole piece, anti-creep age distance is not enough, then need Between place between power-on and power-off pole piece in addition to chip 506,507 coats the second insulating barrier 504 to ensure power-on and power-off pole piece Reliable insulation, wherein the second insulating barrier 504 can be using insulation silica gel.Thus, that is, semi-conducting electrode component is formd.

The semi-conducting electrode component both sides have three with extraneous electrical connection section, i.e., three lugs 522,532,552.It is above-mentioned On semi-conducting electrode component, in addition at three lugs, remaining all exposed surface is coated with the first insulating barrier 501b, and this first Material used by insulating barrier 501b is the insulating materials of resistance to cooling immersion bubble, such as the insulation silica gel of resistance to cooling immersion bubble, or Insulating ceramics coating of resistance to cooling immersion bubble etc., these materials have a watt gram insulation silica gel Elastosil RT 728A/B, will to contain prestige Magnificent ZS-1091 high-temperature insulations ceramic coating etc.；Thus, so as to form semi-conducting electrode single piece 102.

The present embodiment also introduces serrated fin 6 as shown in Figure 11-2, by two groups of above-mentioned Hes of semi-conducting electrode single piece 102 Three groups of alternately laminated compressions of fin 6, form semiconductor heat-dissipating group body as shown in figure 15, wherein include open in fin 6 Cooling passage, fin 6 plays support both sides semi-conducting electrode single piece 102 and plays enhanced heat exchange simultaneously, coolant Directly contacted with the first insulating barrier 501b.

The present embodiment includes shell (not shown), and the shell is made up of two half parts of left and right (or front and rear two half part), outward Shell is used to accommodate semiconductor heat-dissipating group body, and the lug of electrode strip is extended outside shell electrically connect with the external world, electrode strip and Encapsulation process is done between shell, inlet and liquid outlet are provided with shell.

Embodiment 5

The present embodiment provides a kind of IGBT single tubes, and as shown in figure 19, the IGBT single tubes have exposed heat sink 605 (or gold Category substrate), the heat sink 605 is electrically connected with the colelctor electrode (C poles) of IGBT tube cores, while the heat sink 605 is also heat dissipating layer, The heat that IGBT tube cores are sent out mainly outwards is distributed by the heat sink 605.Three pins 601 of IGBT single tubes are wrapped, Then the body 604 of IGBT single tubes is all impregnated into (i.e. dip-coating) in the insulation silica gel of resistance to cooling immersion bubble, so as to uniform painting Insulating layer coating 662；Preferably, only the bottom of pin 601 is wrapped, and the top of pin 601 is not wrapped up, and with IGBT single tubes Body 604 do insulation processing together.Form the IGBT single tubes that surface as shown in figure 19 is coated with insulating barrier.

Heat sink 605 (and ear) exposed surface of above-mentioned IGBT single tubes is uniformly attached with the insulation of resistance to cooling immersion bubble Silica gel, the silica gel adhesive force is strong, seals good waterproof performance, and dielectric strength is high.As shown in figure 20, should in IGBT single tubes cooling device In, pin is electrically connected and operational heat with outside, and the body 604 that can will carry out the IGBT single tubes of above-mentioned insulation processing is complete Portion is cooled down in being soaked in coolant 608 (coolant is the main anti-icing fluid being made up of water and ethylene glycol), and pin 601 is stretched On mainboard 607, and encapsulation process is done in contact position between pin 601 and mainboard 607 (as used paste silica gel sealing).

The heat-transfer path of the IGBT single tube cooling devices is：The heat that IGBT tube cores are sent out is delivered to by heat sink 605 On insulating barrier 662, coolant 608 is then directly passed to by insulating barrier 662.In addition, other several times of body 604 can also Direct heat transfer is to coolant 608.As can be seen here, its heat-transfer path is shorter, and because insulating barrier 662 is by the way of coating, Insulating barrier 662 is good with the tack of heat sink 605, it is to avoid the presence of air gap, therefore is almost not in contact with thermal resistance；And insulating barrier 662 insulating materials steeped from resistance to cooling immersion, insulating barrier 662 is immersed directly in coolant 608, and its overall heat transfer resistance is more Small, heat transfer efficiency is very high.

Equally, other power device single tubes such as MOSFET single tubes can also do similar above-mentioned insulation processing, and using identical Cooling device.

Embodiment 6

The charging member of the present embodiment is IGBT electrode bar assemblies, and IGBT electrodes bar assembly includes semiconductor chip and positioned at partly leading The electrode strip of body chip both sides.The IGBT electrode strips module outer surface is provided with the insulating materials of resistance to cooling immersion bubble as exhausted Edge layer 2；So, the charging member with insulated outer surface can be with conductive coolant direct contact heat transfer.Then constitute IGBT module cooling device shown in shown in similar Figure 14 or Figure 21.

With above-mentioned according to desirable embodiment of the invention as enlightenment, by above-mentioned description, relevant staff is complete Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention Property scope is not limited to the content on specification, it is necessary to its technical scope is determined according to right.

Claims

1. a kind of battery cooling apparatus, it is characterised in that including battery unit, the battery unit includes battery inner core, described Battery inner core has sealable outer, and the outer surface of the sealable outer and/or inner surface are provided with insulating barrier and are formed has external insulation Layer and/or inner insulating layer sealable outer；At least side of the battery unit is fluid passage, so that battery unit can pass through Sealable outer carries out heat exchange with fluid；The battery cooling apparatus also include conductive coolant, and sealable outer is cold with conduction But liquid direct contact heat transfer；Wherein described conductive coolant is water base coolant, and the external insulation layer is steeped by resistance to cooling immersion Insulating materials is formed.

2. battery cooling apparatus according to claim 1, it is characterised in that including：

--- battery, the battery has shell, and the outer surface of the shell is provided with insulating barrier and forms external insulation shell；

--- outer shell, it is used to accommodate coolant, the outer shell is made up of upper shell, lower house, the upper shell, lower house Sheath body cavity is surrounded, the outer shell is provided with inlet and liquid outlet；

--- mainboard, it is used to assemble battery, the mainboard offers several mounting holes；

--- the battery top seals with the mainboard and installs, and the bottom of the external insulation shell is placed in the sheath body sky of outer shell In chamber, the bottom of the external insulation shell is hanging, or, the bottom of the external insulation shell connects with the inwall bottom of lower house Touch.

3. battery cooling apparatus according to claim 1, it is characterised in that including：Battery unit, saw tooth fin； Battery unit and saw tooth fin interval setting, saw tooth fin rise to soft-package battery and separate and supporting role；Battery unit includes electricity Pond inner core and, battery inner core outer wrap by battery inner core seal dielectric film, the dielectric film with conduction coolant it is straight Connect contact heat-exchanging.

4. a kind of power device cooling device, it is characterised in that the power device cooling device includes power device body, institute The radiating plate surface for stating power device body is provided with the first insulating barrier, and the power device cooling device also includes conductive cooling Liquid, the conductive coolant is water base coolant；First insulating barrier can be conductive with conductive coolant direct contact heat transfer Coolant is that water or main component are water and the anti-freeze cooling liquid of ethylene glycol, the insulation that the insulating barrier is steeped by resistance to cooling immersion Material is formed.

5. power device cooling device according to claim 4, it is characterised in that described power device is partly led for power Body electrode bar assembly, or power semiconductor single tube；Wherein, power semiconductor electrode bar assembly includes：Semiconductor chip and it is located at The electrode strip of semiconductor chip both sides.

6. power device cooling device according to claim 5, it is characterised in that the electrode strip includes the electricity of sheet Pole piece, the quantity of electrode slice is 2 or 3 or 5.

7. power device cooling device according to claim 5, it is characterised in that the position of power semiconductor electrode bar assembly The second insulating barrier is provided between the electrode strip of semiconductor chip both sides.

8. a kind of PTC electric heater units, it is characterised in that including PTC electrodes bar assembly and be wrapped in PTC electrodes bar assembly outside The first insulating barrier；The electric heater unit also includes conductive coolant, and the conductive coolant is water base coolant；The parcel The PTC electrodes bar assembly for having the first insulating barrier can be with conductive coolant direct contact heat transfer；

Wherein, PTC electrodes bar assembly includes some PTC-elements and is arranged at the electrode strip of PTC-element both sides, and conductive coolant is Water or the anti-freeze cooling liquid that main component is water and ethylene glycol, the insulating barrier are formed by the insulating materials that resistance to cooling immersion is steeped.

9. battery cooling apparatus, it is characterised in that including：

--- the battery top seals with the mainboard and installs, and the bottom of the external insulation shell is placed in the sheath body sky of outer shell In chamber, the bottom of the external insulation shell is hanging, or, the bottom of the external insulation shell connects with the inwall bottom of lower house Touch；

Wherein, coolant is that water or main component are water and the anti-freeze cooling liquid of ethylene glycol, and battery is rectangular cell.

10. battery cooling apparatus as claimed in claim 9, it is characterised in that be provided with insulating barrier with the inner surface of battery case The interior insulation shell of formation replaces external insulation shell.