CN209282352U - A kind of power battery New-type phase change is cooling and heating integral structure - Google Patents

Abstract

The utility model discloses a kind of power battery New-type phase change cooling and heating integral structures, including power battery module fixture, temperature sensor, control unit, shape is closely provided in the gap of the cylinder-type power battery two sides of each file to be adapted with cylindrical cell outer profile and be bonded the inflation type aluminum soaking plate contacted with each cylinder-type power battery curved surface, the top of the power battery module, bottom is bonded the equal flat plate heat of inflation type aluminum being provided with the heat-conducting planar heat transfer contact of each inflation type aluminum soaking board ends with being sequentially overlapped, exchange heat copper flat tube, wherein, heat exchange copper flat tube positioned at power battery module bottom is enclosed with heating film.The utility model is by expeditiously radiating or heating to the various charge and discharge operating conditions of power battery pack, control battery core temperature simultaneously effectively reduces the temperature difference between different battery cores, make entire power battery pack work within the scope of reasonable temperature, effectively solves the heat management problems of densely arranged cylinder-type power battery mould group.

Description

A kind of power battery New-type phase change is cooling and heating integral structure

Technical field

The utility model relates to the power battery thermal management systems that electric car uses, and in particular to a kind of power battery is new Type Phase cooling and heating integral structure.

Background technique

With increasingly sharpening for energy crisis and environmental pollution, new-energy automobile substitution conventional engines automobile oneself become and work as The inexorable trend of modern countries in the world automobile industry development.Importantly, being opened in current various new-energy automobile technologies and product In hair, electric car already becomes the main force of future development.And the performance that lithium ion battery more relies on its excellent, it is considered as electricity The ideal power source of electrical automobile.In use, the accumulation of heat and the raising of temperature can accelerate the battery longevity to lithium ion battery The decaying of life.In addition, for battery fill with over-discharge electrical phenomena, so as to cause between battery cell capacity it is inconsistent, can also make Battery module premature failure.The ideal working temperature section of current main-stream power battery is 20 ~ 50 DEG C, and is needed to battery pack Interior temperature gradient is controlled, and control as far as possible is within 5 DEG C, but power battery thermal management system on the market is difficult to With increasingly promotion power battery pack energy density.Therefore, the heat management system for developing electric automobile power battery packet is extremely urgent, Safe and reliable heat management system is researched and developed adjusting power battery operating temperature, reduces the battery core temperature difference in power battery pack, at For the challenge that can not be crossed on Development of Electric Vehicles road.

By the exploration and practice of several years, the electric automobile power battery heat management system of current high-energy density is gradually Focus on liquid cooling, phase-change material.Liquid cooling heat management system is to utilize its high fever through power battery module surface using refrigerating liquid stream Hold characteristic to take away battery modules inside generation heat.But due to directly contacting liquid with battery pack, can exist because liquid is let out Reveal and cause the risk of battery short circuit.Meanwhile the more air-cooled heat management system of liquid cooling heat management system is complicated and equipment is heavy, cost Also higher.Phase-change material is also to be currently in development to can be used for a kind of technological means of power battery pack heat management.Greatly PCM and 2 seed type of heat pipe can be divided on body.The former is the latent heat of phase change using solid-liquid phase-change process, and the latter is then that working medium exists Rapid phase transition occurs in heat pipe, moves in circles, to realize the conduction of heat.PCM class phase transformation material heat pipe manages system in material Heat absorption capacity can be lost after melting completely.Meanwhile controllability is poor.In order to obtain more ideal heat management performance, actively Researching and developing heat pipe class phase transformation material heat pipe reason system is a technology path worthy of expecting.But current common heat pipe, such as copper water Heat pipe, aluminium flat-plate heat pipe are difficult to be directly applied in cylinder-type power battery mould group.

Utility model content

Based on this, the utility model discloses that a kind of power battery New-type phase change is cooling and heating integral structure.

The utility model adopts the following technical solution realizes:

A kind of power battery New-type phase change is cooling and heating integral structure, including installs cylindrical type power electric for array The power battery module fixture of pond group, the temperature sensor for measuring cylinder-type power battery group temperature, control unit,

Shape and cylindrical cell foreign steamer are closely provided in the gap of the cylinder-type power battery two sides of each file The inflation type aluminum soaking plate that exterior feature is adapted and fits closely with cylinder-type power battery curved surface, the power battery module top Portion is bonded the inflation type aluminum being provided with the heat-conducting planar heat transfer contact on each inflation type aluminum soaking plate top with being sequentially overlapped Equal flat plate heat, heat exchange copper flat tube, the bottom end of the power battery module fixture is bonded with being sequentially overlapped to be provided with and each inflation type The equal flat plate heat of inflation type aluminum of the heat-conducting planar heat transfer contact of aluminum soaking plate bottom end and the heat exchange copper for having wrapped up heating film Flat tube；Equal sealed set has phase inversion thermal technology in the inflation type aluminum soaking plate and the equal flat plate heat inner cavity of the inflation type aluminum Matter；The control unit passes through circuit connection temperature sensor, the heat exchange liquid supply system of heating film and the copper flat tube that exchanges heat； Heat exchange copper flat tube positioned at top and bottom end can individually or simultaneously lead to cooling according to heat dissipation payload, selection in heat dissipation Liquid simultaneously adjusts uninterrupted；When heated, it can concurrently or separately lead to heating liquid according to heating load size and to adjust flow big It is small, it chooses whether to open heating film, duty requirements is adapted to optimal mode.

Further, the inflation type aluminum soaking plate includes between adjacent two files cylinder-type power battery Several two-sided inflation type aluminum soaking plates and two single-side blowing-up type aluminium on the outside of two file cylinder-type power batteries of left and right Matter soaking plate.

Further, the two-sided inflation type aluminum soaking plate is symmetrical structure, including is located at the cylindrical type power The axial clearance of battery pack and lateral clearance intersection and can be compatible with adjacent two files cylindrical battery outer profile simultaneously First bulging section, the first straight line section for being connected between each first bulging section and including supporting rib, wherein being located at the of top and bottom ends One bulging section is provided with the vertical two-sided inflation type aluminum soaking plate axis and puts respectively in power battery module top, bottom First heat-conducting planar of the inflation type aluminum soaking plate heat conduction contact set.

Further, the single-side blowing-up type aluminum soaking plate include can be with outermost columna type power battery The compatible second bulging section of lateral profile, the second straight line section for being connected between each second bulging section and including supporting rib, In be located at the second bulging section of top and bottom ends and be provided with the vertical second straight line section and respectively and on power battery module top, bottom Second heat-conducting planar of the inflation type aluminum soaking plate heat conduction contact that portion is placed.

Further, the equal flat plate heat of inflation type aluminum include intermediate support plate, by inflation moulding process distinguish it is convex The condensation end and evaporation ends of the intermediate support plate upper surface and lower end surface, the inner cavity of the condensation end and evaporation ends are set out It is connected, wherein the evaporation ends and each inflation type aluminium for the equal flat plate heat of inflation type aluminum placed at the top of the power battery module The plane that the heat-conducting planar on matter soaking plate top is collectively formed fits, and the heat exchange copper flat tube of condensation end and top fits； The condensation end for the equal flat plate heat of inflation type aluminum that the power battery module bottom is placed and each inflation type aluminum soaking plate bottom end The plane that is collectively formed of heat-conducting planar fit, evaporation ends are affixed with the heating film upper surface for being wrapped in heat exchange copper flat tube It closes.

Further, it is intermediate to be greater than evaporation ends distance for height of the condensation end apart from intermediate supports plate thickness direction center The height at support plate center, the purpose is to: shorter evaporation ends can form the internal liquid phase cavity for being easier to be evenly distributed, higher Condensation end can form the gas-phase space of more abundant heat exchange area.

Further, the intermediate support plate with a thickness of 1-1.5mm, the condensation end is apart from intermediate supports plate thickness side It is 1.5-2.5mm to the height at center, height of the evaporation ends apart from intermediate support plate center is 1-1.4mm, and formed Upper and lower end face guarantees that flatness within 0.8mm, guarantees contact area.

Further, the two-sided inflation type aluminum soaking plate, single-side blowing-up type aluminum soaking plate, inflation type aluminum soaking Plate is used uniformly inflation moulding process, and external adapter curved surface, has been formed simultaneously closed inside needed for not only foring respectively Working medium circulation cavity, the working medium sealed up for safekeeping in the cavity can be exchanged heat by external adapter curved surface and the external world, constantly absorb, releases Latent heat of phase change is put, rapid phase transition circulation is formed, to realize the effect of soaking plate efficient heat transfer, samming.

Further, the heat exchange copper flat tube that the power battery module top, bottom is arranged in is with one fixed width Flat tube；The axis of the heat exchange copper flat tube and the axis of cylinder-type power battery are arranged in parallel.

Further, the control unit is used for the control in heat dissipation and exchanges heat liquid supply system to positioned at top and bottom end Heat exchange copper flat tube be passed through coolant liquid simultaneously；Or it according to heat dissipation payload, is individually passed through coolant liquid and adjusts flow Size.When heated, can be according to load condition, while it being passed through heating liquid and starting heating film heating, promote heating speed；Or Person is activated individually heating film and heats liquid and adjust the uninterrupted of heating liquid, adapts to duty requirements with optimal mode.

Compared with prior art, the utility model has the following beneficial effects:

1, the utility model design is a set of complete power battery thermal management system structure.It can be according to power electric The different operating condition in pond is radiated or is heated to it.By including heat exchange copper flat tube and heating film in structure as mould group Cold and heat source, the utility model can integrally be cold-started electric car under cold severe weather conditions, also can be It under the high-power charge and discharge operating condition of electric car, is efficiently radiated to battery core in mould group, guarantees entire mould group work reasonable Temperature range within.

2. power battery New-type phase change cooling described in the utility model and heating integral structure, the original of critical component Material, processing flow are unified, solve the manufacture problem of polymorphic structure using inflation manufacturing process using aluminum profile, and then make electricity Core completes good cooperation with special-shaped inflation structure and contacts and (reduce thermal contact resistance).The soaking of inflation type is arranged above and below the bottom of mould group top Being evenly distributed with for the hot and cold amount of battery modules is effectively ensured in plate, on heat conveying structure, using liquid cooling flat copper pipe as battery modules Heat dissipation, heating main path, make full use of the existing hot and cold circulation fluid of heat pump on vehicle, further add heating film, according to It is heated by outside vehicle power supply, improves the service performance of winter Vehicular battery.So the integral structure is easy to accomplish dynamic The integrated heating-cooling of power battery modules can simplify battery thermal management system structure, promote the reliability of power battery pack.

3. power battery New-type phase change cooling described in the utility model and heating integral structure, are able to solve battery mould Group maximum operation temperature and the big heat management pain spot problem of maximum temperature difference two, and use unified manufacturing process, each components Strict control size, the integral structure of institute's molding assembly have very high energy density, while being easily assembled and dismantling, side Just subsequent power battery pack maintenance and cascade utilization.

4, the power battery thermal management control unit that the utility model is included, can be according to the work temperature of power battery module Degree carries out dynamic regulation, is conducive to the operation energy consumption for saving relevant device, improves system energy efficiency.

Detailed description of the invention

Fig. 1 is that a kind of power battery New-type phase change is cooling in the utility model one embodiment and heating integral structure is shown It is intended to;

Fig. 2 is that a kind of power battery New-type phase change is cooling and heating integral structure in the utility model one embodiment Side view；

Fig. 3 is that a kind of power battery New-type phase change is cooling and heating integral structure in the utility model one embodiment Top view；

Fig. 4 is that a kind of power battery New-type phase change is cooling and heating integral structure in the utility model one embodiment Explosive view；

Fig. 5 is the two-sided inflation type aluminum soaking plate appearance schematic diagram in the utility model one embodiment；

Fig. 6 is the two-sided inflation type aluminum soaking plate horizontal sectional view in the utility model one embodiment；

Fig. 7 is the single-side blowing-up type aluminum soaking plate appearance schematic diagram in the utility model one embodiment；

Fig. 8 is the single-side blowing-up type aluminum soaking plate sectional elevation view in the utility model one embodiment；

Fig. 9 is the inflation type aluminum soaking flat panel contours schematic diagram in the utility model one embodiment；

Figure 10 is the equal flat plate heat sectional elevation view of inflation type aluminum in the utility model one embodiment；

Wherein, 1 is cylinder-type power battery group, and 2 be two-sided inflation type aluminum soaking plate, and 2-1 is the first bulging section, 2-2 For first straight line section, 2-3 is the first heat-conducting planar, and 2-4 is the first air inlet, and 3 be single-side blowing-up type aluminum soaking plate, and 3-1 is Second bulging section, 3-2 are second straight line section, and 3-3 is the second heat-conducting planar, and 3-4 is the second air inlet, and 4 is equal for inflation type aluminum Flat plate heat, 4-1 are condensation end, and 4-2 is evaporation ends, and 4-3 is third air inlet, and 4-4 is intermediate support plate, and 5 be heat exchange copper flat tube, 6 be power battery module fixture, and 7 be heating film, and 8 be temperature sensor, and 9 be control unit.

Specific embodiment

To more fully understand the utility model, the utility model is made further with reference to the accompanying drawings and examples It is bright.

As shown in Figures 1 to 4, a kind of power battery New-type phase change cooling and heating integral structure, including pacify for array The power battery module fixture of dress cylinder-type power battery group 1, the temperature sensing for monitoring 1 temperature of cylinder-type power battery group Device 8, control unit 9 are provided with shape and cylindrical type electricity in the gap of the cylinder-type power battery two sides of each file with filling up The inflation type aluminum soaking plate that core outer profile is adapted and fits closely with each cylinder-type power battery curved surface, the power electric Pond die set top is sequentially overlapped the inflation type aluminium being provided with the heat-conducting planar heat transfer contact on each inflation type aluminum soaking plate top The equal flat plate heat 4 of matter, heat exchange copper flat tube 5, the power battery module bottom, which is sequentially overlapped, to be provided with and each inflation type aluminum soaking The equal flat plate heat of inflation type aluminum of the heat-conducting planar heat transfer contact at board bottom end and the heat exchange copper flat tube 5 for having wrapped up heating film 7；Institute Stating equal sealed set in inflation type aluminum soaking plate and equal 4 inner cavity of flat plate heat of the inflation type aluminum has phase-change heat-exchange working medium；Institute The control unit stated passes through circuit connection temperature sensor 8, the heat exchange liquid supply system of heating film 7 and the copper flat tube 5 that exchanges heat.

There are eight pawl jacks on the power battery module fixture, for placing and fixing the arrangement of 9*5 matrix, axis horizontal 21700 cylindrical type ternary lithium dynamical batteries, and electric current in mould group is converged in collector plate, forms parallel circuit, battery core it Between there are axial clearance and lateral clearance, most narrow place only 1.55mm, to form the high battery modules of energy density such as Fig. 4.

The inflation type aluminum soaking plate includes several two-sided between adjacent two files cylinder-type power battery Inflation type aluminum soaking plate 2 and two single-side blowing-up type aluminum soaking plates on the outside of two file cylinder-type power batteries of left and right 3。

Specifically, as it can be seen in figures 5 and 6, the two-sided inflation type aluminum soaking plate 2 is symmetrical structure, including it is located at institute State axial clearance and the lateral clearance intersection and can be simultaneously and outside adjacent two files cylindrical battery of cylinder-type power battery group 1 The compatible first bulging section 2-1 of profile, the first straight line section 2- for being connected between each first bulging section 2-1 and including supporting rib 2, wherein the first bulging section 2-1 for being located at top and bottom ends is provided with vertical two-sided 2 axis of inflation type aluminum soaking plate and difference With the first heat-conducting planar 2-3 on power battery module top, equal 4 thermal conductive contact of flat plate heat of inflation type aluminum of bottom placement.

As shown in FIG. 7 and 8, the two-sided inflation type aluminum soaking plate 2 is symmetrical structure, including is located at the cylindrical type It the axial clearance of power battery pack 1 and lateral clearance intersection and can mutually be fitted with adjacent two files cylindrical battery outer profile simultaneously The the first bulging section 2-1 matched, the first straight line section 2-2 for being connected between each first bulging section 2-1 and including supporting rib, wherein position First bulging section 2-1 of top and bottom ends is provided with vertical two-sided 2 axis of inflation type aluminum soaking plate and respectively and in power First heat-conducting planar 2-3 of equal 4 thermal conductive contact of flat plate heat of inflation type aluminum that battery modules top, bottom are placed.

As shown in Figure 9 and Figure 10, the equal flat plate heat 4 of the inflation type aluminum includes intermediate support plate 4-4, by inflation molding Technique protrudes the condensation end 4-1 that the upper surface the intermediate support plate 4-4 and lower end surface is arranged in and evaporation ends 4-2 respectively, described Condensation end 4-1 is connected with the inner cavity of evaporation ends 4-2, and the condensation end 4-1 is apart from intermediate support plate 4-4 thickness direction center Height is greater than height of the evaporation ends 4-2 apart from the center intermediate support plate 4-4.Wherein, it is placed at the top of the power battery module The evaporation ends 4-2 of the equal flat plate heat 4 of inflation type aluminum and the heat-conducting planar on each inflation type aluminum soaking plate top are collectively formed flat Face fits, and condensation end 4-1 fits with heat exchange copper flat tube 5；The inflation type aluminum that the power battery module bottom is placed The plane that the equal condensation end 4-1 of flat plate heat 4 and the heat-conducting planar of each inflation type aluminum soaking plate bottom end are collectively formed fits, Evaporation ends 4-2 fits with 7 upper surface of heating film for being wrapped in heat exchange copper flat tube 5.

The equal flat plate heat 4 of the two-sided inflation type aluminum soaking plate 2, single-side blowing-up type aluminum soaking plate 3, inflation type aluminum is united One uses inflation moulding process, and overall balance intensity, density, heat transfer etc. requirement, selecting, there is high ductibility Al-3003 to make For raw material, two pieces of aluminium plates by cleaning, print riveted, roll conjunction, annealing and etc. after, be put into the mold of preforming, To the first air inlet 2-4, the second air inlet 3-4, third air inlet 4-3, high-pressure inert gas (such as Fig. 5~9) are squeezed into, in gas It is easy to form that there is internal cavity under the pressure of inflation and the reaction force of mold, and can be with the patch on single battery surface The complex appearance curved surface of conjunction, and then the thermal resistance on the heat-transfer path of reduction battery modules entirety, and the raw material of critical component, Processing flow is unified, reduces integrally-built manufacture complexity.After being cleaned to the molding inflation plate of institute, to intralamellar part Cavity carries out vacuumize process, and injects appropriate electronics fluorination liquid from the entrance of inflation plate in a sealed meter environment, then sealed Processing, to produce the soaking plate that thermal resistance is low, heat-transfer capability is strong, average temperature performance is good.Such soaking plate makes on gravity direction With, working medium density is larger, and stickiness is small, and working medium circulation reflowing result is good, and has electrical isolation effect, and it is volatile, it can be avoided After recurring structure is damaged, battery short circuit accident caused by being revealed because of working medium.

As viewed in figures 5-8, the two-sided inflation type aluminum soaking plate 2 and single-side blowing-up type aluminum soaking plate 3 pass through respectively First air inlet 2-4, the second air inlet 3-4 squeeze into high-pressure inert gas to pipe both ends, are respectively formed three kinds of structures: can be with circle Column type battery core outer profile is adapted to the second drum at the first bulging section 2-1 and maximum gauge for reaching 15mm at maximum gauge up to 8.6mm Swollen section of 3-1, as far as possible increase gas phase heat transfer space；And and battery modules axial clearance plate thickness can be inserted into just 1.55mm, wall thickness 0.4mm include the first straight line section 2-2 and second straight line section 3-2 of supporting rib；And top, bottom both ends and axis Vertical the first heat-conducting planar 2-3 and the second heat-conducting planar 3-3.The two-sided inflation type aluminum soaking plate 2 is inserted vertically into electricity Pond module internal gap, shown single-side blowing-up type aluminum soaking plate 3 are inserted into mould group two sides gap, the first bulging section 2-1 and the The axial clearance of the corresponding insertion battery modules of two bulging section 3-1 and lateral clearance intersection, can protect with surrounding battery core outer surface The good contact of card, is the groundwork section of soaking plate；First straight line section 2-2 and second straight line section 3-2 is just and axial clearance The both sides battery core at most narrow place contacts, and area is the first heat-conducting planar 2-3 of 40mm*15mm rectangle and area is 40mm*8.6mm square Second heat-conducting planar 3-3 of shape is cut, polishes after inflation molding, then by rolling, top, the common shape in bottom both ends in mould group At approximate horizontal plane, respectively with power battery module top, bottom placement the equal flat plate heat 4 of inflation type aluminum as wide as possible It is contacted.

Specifically, the intermediate supports plate thickness 1.2mm of the equal flat plate heat 4 of the inflation type aluminum, relative support plate thickness direction Center, the height of the condensation end 4-1 are 2.1mm, and the height of the evaporation ends 4-2 is 1.4mm, and the upper and lower end face formed is protected Flatness is demonstrate,proved within 0.8mm.The wherein center condensation end 4-1 and the 5 following table face paste of heat exchange copper flat tube at the top of power battery module It closes, shown evaporation ends 4-2 and soaking plate top the first heat-conducting planar 2-3 and the second heat-conducting planar 3- that are inserted into inside battery modules The 3 plane fittings being collectively formed, shorter evaporation ends 4-2 corresponds to the internal liquid phase cavity for being easier to be evenly distributed, higher Condensation end 4-1 corresponds to more fully gas phase heat transfer space.

In the present embodiment, as shown in figure 4, the heat exchange copper flat tube 5 is width-thickness ratio in 2:1 or more, thickness is below in 6mm Rectangular section flat tube, as far as possible reduction structure whole height, copper pipe axis are arranged in parallel with battery core axis in mould group, according to scattered Heat, heating different demands, can control 5 cooling water supply of heat exchange copper flat tube at the top of power battery module, or to power electric 5 hot-water supply of heat exchange copper flat tube of Chi Mo group bottom, and circulating water temperature, flow can be adjusted.

In another embodiment, heat exchange copper flat tube mode arranges that liquid cooling can be according to different spaces limitation and radiating requirements Specific aim is adjusted.

In another embodiment, heat source of the heating film as power battery module is thickness only 0.3mm PET flexible thin film type heater can further heat the cryogenic liquid in the heat exchange copper flat tube 5 wrapped up, mention to mould group For regulatable heating power, Electric heating starting is quick；

In one embodiment, the heating film is driven by a small battery, for being cold-started in electric car When, Vehicular dynamic battery group is preheated；

The temperature sensor 8 is arranged in the surface of closer center battery core inside battery modules, and is connected by conducting wire To external centerized fusion unit 9, temperature change in mould group is monitored in real time, and timely feedback to control unit 9.Control unit 9 According further to the temperature signal received, judge, once reaching the condition for implementing control strategy, it will regulation correlation is set It is standby, for example change the circulating water flow to exchange heat in copper flat tube 5, temperature, or change heating 7 input current of film, to will move Power battery modules temperature controls in a certain range.

In one embodiment, when winter, when electric car cold start-up, temperature sensor 8 will test power battery mould Group temperature, if temperature is lower than 10 °C, control unit 9 controls bottom end heat exchange copper flat tube 5 and the heating of power battery module fixture 7 collective effect of film supplies 30 DEG C or so hot water.The steaming for the equal flat plate heat 4 of inflation type aluminum that power battery module bottom is placed Originator is heated, and working medium is acutely boiled, and generates gas floating upward quickly and spreads around, and in condensation end regelation along support Plate part returns to evaporation ends, so that continuous phase transformation circulation is formed, so that entirely condensation end face temperature uniformly rises, so that insertion The liquid phase that the bulging section that the soaking plate bottom of module internal is contacted with soaking plate is stored largely is boiled, the gas that phase transformation generates It is diffused up under local pressure effect, the first bulging section 2-1, the second bulging section 3- of soaking plate and power battery contact portion 1 is condensation end at this time, and gas-phase working medium exchanges heat in the soaking plate wall surface and pipe that the battery of low temperature passes through contact, and gas-phase working medium is condensed Afterwards, and along first straight line section 2-2, second straight line section 3-2 wall surface evaporation ends are returned to, completes a phase-change circulation of working medium, thus Constantly carry out heat transmission.Due to persistently undergoing phase transition circulation, gas phase is filled with the internal cavity of most soaking plates, entirely Soaking plate condensation segment part wall maximum temperature gradient is usually no more than 5 DEG C, it is believed that the cylindrical type each contacted with soaking plate Battery consistent cold source approximate with temperature directly exchanges heat, to realize warm between the battery of different location in entire mould group Spend the control target of difference very little.When temperature is lower than 0 DEG C, starts heating film 7 using external power supply, guarantee heat exchange copper flat tube The circulation and temperature of water in 5.After temperature sensor 8 monitors that battery temperature reaches 10 DEG C in mould group, the instruction of control unit 9 adds Hot film 7 stops working, while control unit 9 provides signal, and battery modules is allowed to start to work.Battery modules are in supply at this time Under the action of hot water and self-heat generation, gradually it is warming up to and works normally section.In the present embodiment, when battery modules are in big function When rate charge and discharge operating condition, the chemical reaction of battery itself internal resistance and charging process generation will will lead to temperature raising.If temperature When the detection of sensor 8 temperature is more than 35 DEG C, control unit 9 can issue signal, increase the flow for distributing to battery modules cooling water And cooling water temperature is turned down, cooling water enters the heat exchange copper flat tube 5 at the top of power battery module, at the top of power battery module With the inflation type aluminum to fit equal flat plate heat 4 heat exchange occurs for heat exchange copper flat tube 5, is acted on by the samming of equal flat plate heat, shape At the cold source of extension, continue to two-sided inflation type aluminum soaking plate 2, the single-side blowing-up type aluminum soaking plate 3 of insertion module internal Cooling capacity is provided, the liquid phase working fluid of the bulging section part originally contacted in mould group with battery core at this time is being risen to top by thermal evaporation After first heat-conducting planar 2-3, the second heat-conducting planar 3-3, it is condensed into liquid phase again to the cold, directly along first straight line section 2-2, second Line segment 3-2 tube wall returns to bulging section, continues next phase transformation circulation, and each bulging section is evaporation ends, top drum in soaking plate at this time Swollen section is condensation end.Heat caused by walking power battery charging process is largely absorbed in the phase transition process of working medium, to control Battery modules are maintained in 20 ~ 50 DEG C of temperature ranges.As charging operating condition terminates, control unit 9 regulates and controls to distribute to battery again The temperature and flow of mould group cooling water remain battery modules operating temperature in ideal temperature range.It is entire cooled Cheng Zhong, the heating film 7 are not involved in work.

In the present embodiment, under different working conditions, two-sided inflation type aluminum soaking plate 2, single-side blowing-up type in mould group Aluminum soaking plate 3 had both participated in providing the heating process of heat to power battery module, also assisted in heat in power battery module It is transmitted to extraneous radiation processes.Therefore, each soaking plate top, bottom both ends are respectively served as condensation end and evaporation under different operating conditions End, evaporator section and condensation segment of the pipeline section that corresponding centre is contacted with battery cylindrical surface respectively as soaking plate.Soaking plate is only The barometric gradient generated when by gravity and evaporation completes the phase transformation circulation of working medium, thus, evaporation ends are always at condensation end Under.

In one embodiment, the control unit is used for the control in heat dissipation and exchanges heat liquid supply system only to positioned at top The heat exchange copper flat tube 5 at end is passed through coolant liquid, and battery modules temperature is maintained no longer to rise；When heated, only flat to bottom end heat exchange copper Pipe 5 is passed through heating liquid, carries out carrying out the preheating of Vehicular battery mould group compared under worst cold case.

In another embodiment, the control unit is used for the control in heat dissipation and exchanges heat liquid supply system to positioned at top The heat exchange copper flat tube 5 of end and bottom end is passed through coolant liquid simultaneously, promotes battery modules cooling effect；When heated, at the same be passed through plus Hydrothermal solution and the starting heating heating of film 7, shorten heating time, realize that battery modules are quickly cold-started.

Above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；Although referring to above-mentioned reality Example is applied the utility model is described in detail, those skilled in the art should understand that;It still can be to upper It states technical solution documented by each embodiment to modify, or equivalent substitute is carried out to part of technical characteristic;And these It modifies or replaces, spiritual model described in various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution It encloses.

Claims (10)

1. a kind of power battery New-type phase change cooling and heating integral structure, including cylinder-type power battery is installed for array The power battery module fixture of group (1), the temperature sensor (8) for measuring cylinder-type power battery group (1) temperature, control are single First (9), it is characterised in that:

Shape and cylindrical cell outer profile phase are closely provided in the gap of the cylinder-type power battery two sides of each file Adaptation and the inflation type aluminum soaking plate contacted with the fitting of each cylinder-type power battery curved surface, the top of the power battery module Portion is bonded the inflation type aluminum being provided with the heat-conducting planar heat transfer contact on each inflation type aluminum soaking plate top with being sequentially overlapped Equal flat plate heat (4), heat exchange copper flat tube (5), the bottom of the power battery module is bonded with being sequentially overlapped to be provided with and each inflation It the equal flat plate heat of inflation type aluminum (4) of the heat-conducting planar heat transfer contact of type aluminum soaking plate bottom end and has wrapped up heating film (7) Heat exchange copper flat tube (5)；It is sealed in the inner cavity of the inflation type aluminum soaking plate and the equal flat plate heat of inflation type aluminum (4) It is provided with phase-change heat-exchange working medium；The control unit is by circuit connection temperature sensor (8), heating film (7) and exchanges heat The heat exchange liquid supply system of copper flat tube (5).

2. power battery New-type phase change cooling according to claim 1 and heating integral structure, it is characterised in that: described Inflation type aluminum soaking plate include that several two-sided inflation type aluminums between adjacent two files cylinder-type power battery are equal Hot plate (2) and two single-side blowing-up type aluminum soaking plates (3) on the outside of two file cylinder-type power batteries of left and right.

3. power battery New-type phase change cooling according to claim 2 and heating integral structure, it is characterised in that: described Two-sided inflation type aluminum soaking plate (2) be symmetrical structure, including be located at the cylinder-type power battery group (1) axial clearance With lateral clearance intersection and can compatible several first bulging section (2- with adjacent two files cylindrical battery outer profile simultaneously 1) it, is connected between each first bulging section (2-1) and includes the first straight line section (2-2) of supporting rib, wherein being located at top and bottom ends First bulging section (2-1) is provided with vertical two-sided inflation type aluminum soaking plate (2) axis and respectively and in power battery mould First heat-conducting planar (2-3) of inflation type aluminum equal flat plate heat (4) thermal conductive contact that group top, bottom are placed.

4. power battery New-type phase change cooling according to claim 2 and heating integral structure, it is characterised in that: described Single-side blowing-up type aluminum soaking plate (3) includes can compatible with outermost columna type power battery lateral profile second Bulging section (3-1), the second straight line section (3-2) for being connected between each second bulging section (3-1) and including supporting rib, wherein being located at Second bulging section (3-1) of top and bottom ends is provided with the vertical second straight line section (3-2) and respectively and in power battery module Second heat-conducting planar (3-3) of inflation type aluminum equal flat plate heat (4) thermal conductive contact that top, bottom are placed.

5. power battery New-type phase change cooling according to claim 1 and heating integral structure, it is characterised in that: described The equal flat plate heat of inflation type aluminum (4) includes intermediate support plate (4-4), protrude and be arranged in described respectively by inflation moulding process Between the support plate upper surface (4-4) and lower end surface condensation end (4-1) and evaporation ends (4-2), the condensation end (4-1) and evaporation ends The inner cavity of (4-2) is connected, wherein the evaporation for the equal flat plate heat of inflation type aluminum (4) placed at the top of the power battery module The plane that is collectively formed of heat-conducting planar on end (4-2) and each inflation type aluminum soaking plate top fits, condensation end (4-1) and Heat exchange copper flat tube (5) fits；The condensation end for the equal flat plate heat of inflation type aluminum (4) that the power battery module bottom is placed The plane that the heat-conducting planar of (4-1) and each inflation type aluminum soaking plate bottom end is collectively formed fits, evaporation ends (4-2) and packet Heating film (7) upper surface for wrapping up in heat exchange copper flat tube (5) fits.

6. power battery New-type phase change cooling according to claim 5 and heating integral structure, it is characterised in that: described Height of the condensation end (4-1) apart from intermediate support plate (4-4) thickness direction center is greater than evaporation ends (4-2) apart from intermediate support plate The height at the center (4-4).

7. power battery New-type phase change cooling according to claim 6 and heating integral structure, it is characterised in that: described Intermediate support plate (4-4) with a thickness of 1-1.5mm, the condensation end (4-1) is apart from intermediate support plate (4-4) thickness direction center Height be 1.5-2.5mm, height of the evaporation ends (4-2) apart from the center intermediate support plate (4-4) is 1-1.4mm, and shape At upper and lower end face flatness within 0.8mm.

8. power battery New-type phase change cooling according to claim 2 and heating integral structure, it is characterised in that: described Two-sided inflation type aluminum soaking plate (2), single-side blowing-up type aluminum soaking plate (3), the equal flat plate heat of inflation type aluminum (4) are used uniformly Inflation moulding process, external adapter curved surface needed for not only foring respectively have been formed simultaneously closed internal working medium circulation cavity, The working medium sealed up for safekeeping in the cavity can be exchanged heat by external adapter curved surface and the external world, constantly be absorbed, release latent heat of phase change, shape It is recycled at rapid phase transition.

9. power battery New-type phase change cooling according to claim 1 and heating integral structure, it is characterised in that: described The power battery module top is set, the heat exchange copper flat tube (5) of bottom is the flat tube with one fixed width；The heat exchange copper is flat The axis of the axis and cylinder-type power battery of managing (5) is arranged in parallel.

10. power battery New-type phase change cooling according to claim 1 and heating integral structure, it is characterised in that: institute The control unit (9) stated is used to control heat exchange liquid supply system to the heat exchange copper flat tube (5) for being located at top and bottom end in heat dissipation It is passed through coolant liquid simultaneously；Or it according to heat dissipation payload, is individually passed through coolant liquid and adjusts uninterrupted；It is heating When, according to load condition, while it being passed through heating liquid and starting heating film (7) heating, promotes heating speed；Alternatively, individually opening Dynamic heating film and heating liquid and the uninterrupted for adjusting heating liquid adapt to duty requirements with optimal mode.