CN209515928U - A kind of self radiation type emergency cell group - Google Patents
A kind of self radiation type emergency cell group Download PDFInfo
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- CN209515928U CN209515928U CN201920178462.0U CN201920178462U CN209515928U CN 209515928 U CN209515928 U CN 209515928U CN 201920178462 U CN201920178462 U CN 201920178462U CN 209515928 U CN209515928 U CN 209515928U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model discloses a kind of self radiation type emergency cell groups.For existing passiveness server emergency cell group because compact-sized, cooling requirements are high, but lack matched radiator structure and cause to radiate unsmooth and influence service performance.The utility model includes battery pack body and multiple phase-change accumulation energy monomers, battery pack body includes multiple battery cells, it is set side by side vertically between multiple battery cells, gap is formed between the lateral wall of every two adjacent battery cell, a phase-change accumulation energy monomer is provided in each gap, each change energy storage monomer includes outer utricule and thermally conductive sheet, heat conduction with phase change body is provided in external capsule body, one end of thermally conductive sheet passes through the inside that heat conduction with phase change body is arranged in outer utricule, and the other end of thermally conductive sheet is arranged outside outer utricule.
Description
Technical field:
The utility model is specifically related to a kind of self radiation type emergency cell group.
Background technique:
The features of passiveness server emergency cell group are that the working time is short, discharge-rate is big, the short time generates largely
Hot, higher operating ambient temperature, space it is small, therefore passiveness server emergency cell group is to heat management system engaged therewith
It can require high.But due to being limited by space, security reliability etc., existing others heat management system is natural if mineral oil impregnates
Or air blast cooling or liquid cooling, air conditioner refrigerating, the systems such as electrothermal refrigeration are unable to satisfy the peace of the emergency power supply battery pack of server
Dress condition is also unable to reach main power source power-off operation, the heat dissipation of big intensity and security protection requirement.Passiveness server is unable to satisfy to answer
The related request of anxious battery pack lacks matched cooling system.
Summary of the invention:
To solve the problems, such as to refer in above-mentioned background technique, the purpose of this utility model is to provide a kind of self radiation types to answer
Anxious battery pack.
A kind of phase-change accumulation energy monomer, it includes outer utricule and thermally conductive sheet, and heat conduction with phase change body, thermally conductive sheet are provided in external capsule body
One end pass through in outer utricule insertion heat conduction with phase change body, the other end of thermally conductive sheet is arranged outside outer utricule.
As a preferred solution: thermally conductive sheet is bar shaped plate body, thermally conductive sheet is aluminium sheet.
As a preferred solution: thermally conductive sheet is replaced by microflute flat-plate heat pipe, microflute flat-plate heat pipe is in the external one end of external capsule
It is set with convector radiator.
As a preferred solution: outer utricule is utricule made of coating film, the shape of outer utricule is vertical bar shaped, L shape or circular arc
Shape.
As a preferred solution: being also filled with several support particles in external capsule body, several support particles are in outer utricule and phase
Become between heat carrier, when heat conduction with phase change body is in a molten state, several support particles and heat conduction with phase change body mix setting.
As a preferred solution: the shape of each support particle is strip.
A kind of self radiation type emergency cell group, it includes battery pack body and multiple phase-change accumulation energy monomers, battery pack body
Including multiple battery cells, be set side by side vertically between multiple battery cells, the lateral wall of every two adjacent battery cell it
Between be formed with gap, be provided with a phase-change accumulation energy monomer in each gap, each change energy storage monomer includes outer utricule and thermally conductive
Piece is provided with heat conduction with phase change body in external capsule body, and one end of thermally conductive sheet passes through the inside that heat conduction with phase change body is arranged in outer utricule, thermally conductive
The other end of piece is arranged outside outer utricule.
As a preferred solution: it further includes outer body, movable plate and top tight pieces, the battery pack body is arranged in outer body
It is interior, free gap is respectively formed between the battery cell that the both ends of outer body are adjacent to, each free gap, which is set, to be built-in with
The structure of side energy storage monomer, side energy storage monomer is identical as the structure of phase-change accumulation energy monomer, and movable plate is vertically arranged any work
In dynamic gap and it is between side energy storage monomer and outer body, and top tight pieces pass through outer body and hold out against on movable plate.
As a preferred solution: the shape of outer body is the cuboid or square of open top, set on the outer wall of outer body
It is equipped with multiple first radiating fins.
As a preferred solution: thermally conductive sheet is replaced by microflute flat-plate heat pipe, microflute flat-plate heat pipe is in the external one end of external capsule
It is set with convector radiator, convector radiator includes heat dissipation frame and multiple second radiating fins, the surrounding outer wall of the heat dissipation frame
On be evenly equipped with multiple second radiating fins.
Compared with prior art, the utility model has the following beneficial effects:
One, the utility model structure is simple and occupies little space, and radiates without separately setting space, passes through battery pack body
The multiple gaps itself formed place multiple phase-change accumulation energy monomers and radiate, and heat dissipation effect is uniformly and direct, can be in short-term
The heat of the interior battery pack body sending that sheds.
Two, it is obtained by the utility model sample test, the utility model can be by the environment temperature control of battery pack body
System is in the range of 35~60 DEG C, additionally it is possible to by the temperature difference control between battery cell each in battery pack body being less than or
In the range of 5 DEG C.
Three, the utility model can power off operation, and without electromagnetic interference risk.
Four, the heat transfer efficiency of the utility model is high, thermal control effect is good.
Five, the utility model is pollution-free, corrosion-resistant, long service life, being capable of the long-time service of auxiliary battery banks ontology.
Six, the utility model is not necessarily to separately set the moving component of other auxiliary, and overall structure is simple, safe and reliable.
Seven, the utility model manufacturing cost and maintenance cost are low, easy to process, size and shape flexible design, according to tool
Body requires to carry out specifically to set.
Eight, the utility model maintenance is simple and convenient, and maintenance cost is low.
Nine, due to being limited by space, safe and reliable property, other heat management systems are natural or strong if mineral oil impregnates
Air-cooled or liquid cooling is made, air conditioner refrigerating or electrothermal refrigeration are unable to satisfy the mounting condition of battery pack thermal management system and high safety is prevented
Shield requires occasion, but the utility model is particularly suitable for main power source power-off operation and requires the occasion of short time big intensity heat dissipation
In.
Detailed description of the invention:
The present invention is described in detail by the following detailed description and drawings for ease of explanation,.
Fig. 1 is the first schematic view of the front view of phase-change accumulation energy monomer；
Fig. 2 is the second schematic view of the front view of phase-change accumulation energy monomer, and thermally conductive sheet is replaced by microflute flat-plate heat pipe in figure, micro-
Slot flat-plate heat pipe is in the external one end of external capsule and is set with convector radiator；
Fig. 3 is the schematic view of the front view of the utility model；
Fig. 4 is schematic view of the front view when being provided with outer body, movable plate and top tight pieces on the utility model；
Fig. 5 is overlooking structure diagram when being provided with outer body, movable plate and top tight pieces on the utility model；
Fig. 6 is the overlooking structure diagram of convector radiator；
Fig. 7 is the heating curve contrast schematic diagram that the utility model is in the phase-change accumulation energy monomer under different setting states.
In figure, 1- phase-change accumulation energy monomer；2- battery cell；The outer utricule of 1-1-；1-2- thermally conductive sheet；1-3- heat conduction with phase change body；
1-4- microflute flat-plate heat pipe；1-5- supports particle；3- convector radiator；3-1- heat dissipation frame；The second radiating fin of 3-2-；Outside 4-
Body；5- movable plate；6- top tight pieces；The side 7- energy storage monomer；The first radiating fin of 8-.
Specific embodiment:
To make the objectives, technical solutions and advantages of the present invention clearer, below by shown in the accompanying drawings
Specific embodiment describes the utility model.However, it should be understood that these descriptions are merely illustrative, and it is not intended to limit this reality
With novel range.In addition, in the following description, descriptions of well-known structures and technologies are omitted, to avoid unnecessarily mixing
Confuse the concept of the utility model.
Here, it should also be noted that, in order to avoid having obscured the utility model because of unnecessary details, in the accompanying drawings
It illustrate only the structure and/or processing step closely related with scheme according to the present utility model, and be omitted practical with this
The little other details of new relationship.
Specific embodiment 1: illustrating present embodiment, this implementation according to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7
Mode includes being provided with heat conduction with phase change body 1-3 in outer utricule 1-1 and thermally conductive sheet 1-2, outer utricule 1-1, and one end of thermally conductive sheet 1-2 is worn
It crosses in outer utricule 1-1 insertion heat conduction with phase change body 1-3, the other end of thermally conductive sheet 1-2 is arranged outside outer utricule 1-1.
Further, one end that thermally conductive sheet 1-2 is in outside outer utricule 1-1 is set with convector radiator 3.Convector radiator 3
Be aluminum alloy material profile to use fin convector radiator, its advantage is that: coefficient it is high, at low cost, availability is good.It is right
It fills and fixes with heat-conducting silicone grease between flow heat dissipation device 3 and thermally conductive sheet 1-2.For copper etc., other lead 3 optional material of convector radiator
The high material of hot coefficient.Other good heat dissipation effects or shape at low cost, such as fin aluminium foil can also be used in convector radiator 3.
Further, heat conduction with phase change body 1-3 is the lotion that phase-change material is formed, after heat conduction with phase change body 1-3 absorbs heat
In the liquid of melting, the state of heat conduction with phase change body 1-3 is the state of solid-liquid at this time, and the heat absorbed makes its own temperature
Temperature more than its fusing point.Heat conduction with phase change body 1-3 is in solid-state after releasing heat, at this time the state of heat conduction with phase change body 1-3
For solid-state, the heat absorbed makes its own temperature be in its fusing point temperature below, and one end of thermally conductive sheet 1-2 passes through external capsule
Body 1-1 is inserted into heat conduction with phase change body 1-3, and the other end of thermally conductive sheet 1-2 is arranged outside outer utricule 1-1.Heat conduction with phase change body 1-3 is filled out
The inside of full outer utricule 1-1.Heat conduction with phase change body 1-3 is that particle made of phase-changing energy storage material is formed, and heat conduction with phase change body 1-3 is work
Industry paraffin particles, industrial paraffin particle also can be replaced the mixture of myristic acid particle and stearic acid particles, industrial paraffin
Grain also can be replaced the mixture of brown eleostearic acid particle and stearic acid particles.
Further, thermally conductive sheet 1-2 is bar shaped plate body, and thermally conductive sheet 1-2 is aluminium sheet.The shape for supporting particle 1-4 is strip
Shape.Strip can effectively support outer utricule 1-1, so that outer utricule 1-1 is had the adequate space for accommodating heat conduction with phase change body 1-3, make
Outer utricule 1-1 has the support performance of " inner hard and outer soft ".
Further, thermally conductive sheet 1-2 is replaced by microflute flat-plate heat pipe 1-4, and microflute flat-plate heat pipe 1-4 is in outer utricule 1-1
Outer one end is set with convector radiator 3.Microflute flat-plate heat pipe 1-4 can control the charge and discharge temperature of battery pack body
In suitable range, to guarantee battery security, working performance and reliability and reasonable battery and cost.Microflute
Flat-plate heat pipe 1-4 can control the temperature difference between each single battery of battery pack body in smaller range, i.e. temperature difference
Control is less than 3~4 degrees Celsius.It fills and fixes with heat-conducting silicone grease between convector radiator 3 and microflute flat-plate heat pipe 1-4.
Further, in microflute flat-plate heat pipe 1-4 partial insertion heat conduction with phase change body 1-3, outer utricule 1-1 is passed through, part is sudden and violent
It is exposed in air.
Further, the thermal coefficient of microflute flat-plate heat pipe 1-4 reaches 105W/mK is metal material thermal coefficient
Hundreds of to thousands of times, the both ends microflute flat-plate heat pipe 1-4 are respectively evaporation ends and colling end, the evaporation of microflute flat-plate heat pipe 1-4
One end in heat conduction with phase change body 1-3 is inserted at end, the heat for absorbing heat conduction with phase change body 1-3 is simultaneously quickly transferred to microflute plate heat
The colling end of pipe 1-4, and cooling medium, such as air heat transfer medium are transferred heat to by convector radiator 3.Microflute plate
The effect of heat pipe 1-4: first consist in battery pack body electric discharge when heat dissipation, equivalent to increase heat conduction with phase change body 1-3 thermal capacitance and
The heat of transformation is up to phase transition temperature T in Fig. 7pTime from a1It is deferred to b1, by phase transformation section from a2-a1, extend to b2-
b1.On the other hand, after battery pack body electric discharge, microflute flat-plate heat pipe 1-4 can also shorten heat conduction with phase change body 1-3 temperature, i.e.,
From the temperature at the end of electric discharge, it is set as Th, drop to T0Required time so that battery pack body be restored to as early as possible prepare it is next
The state of secondary electric discharge.This function is particularly important to this kind of phase-changing energy storage material of paraffin, because the time required to paraffin cooling being phase
Several times the time required to should heating up.
Further, the optional material of microflute flat-plate heat pipe 1-4 is aluminium alloy thermally conductive sheet or other metal plates, microflute plate
The shape of heat pipe 1-4 be L-type, c-type or other be conducive to it is thermally conductive, heat dissipation shape.
Further, outer utricule 1-1 is utricule made of coating film, and the shape of outer utricule 1-1 is vertical bar shaped, L shape or circle
Arc.Outer utricule 1-1 is cladding Membrane cover, to prevent it from trickling and keeping the high thermal conductivity of good face contact to coat with battery cell
Film.
Further, several support particle 1-5 are also filled in external capsule body, several support particle 1-5 are in outer utricule 1-
Between 1 and heat conduction with phase change body 1-3, when heat conduction with phase change body 1-3 is in a molten state, several support particle 1-5 and heat conduction with phase change
Body 1-3 mixes setting.Support particle 1-5 is granular porous carbon.The partial size value range for supporting particle 1-5 is 1 to 4mm,
Best value is 1mm, porosity > 45%, wherein 70% the above are the hole for being open or communicating, pore-size > 10-4mm.Its
His material is also replaceable, but the size constancy of partial size, opening or hole.
Specific embodiment 2: illustrating present embodiment, this implementation according to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7
Mode includes battery pack body and multiple phase-change accumulation energy monomers 1, and battery pack body includes multiple battery cells 2, multiple battery lists
It is set side by side vertically between body 2, gap is formed between the lateral wall of every two adjacent battery cell 2, is set in each gap
It is equipped with a phase-change accumulation energy monomer 1, each change energy storage monomer 1 includes setting in outer utricule 1-1 and thermally conductive sheet 1-2, outer utricule 1-1
It is equipped with heat conduction with phase change body 1-3, one end of thermally conductive sheet 1-2 passes through the inside that heat conduction with phase change body 1-3 is arranged in outer utricule 1-1, thermally conductive
The other end of piece 1-2 is arranged outside outer utricule 1-1.The setting of outer utricule 1-1 can ensure heat conduction with phase change body 1-3 and battery list
Body keeps good face contact.
Further, in the gap that multiple battery cells 2 are formed in battery pack body, it is fitted in the outer wall of battery cell 2
On radiate, the battery cell 2 that passively sheds has been passed to the heat of outer surface, thus the utility model be a kind of passive electricity
Pond energy storage monomer.Battery cell 2 is cylindrical battery, rectangular aluminum-shell battery or soft-package battery.Setting when the utility model is used
It is single or multiple for counting, and when used aloned, the utility model can cooperate single battery heat dissipation to use, and single battery is cylinder
Battery, rectangular aluminum-shell battery or soft-package battery.When multiple in use, being set in gap between every two adjacent battery cell 2
Set one.
Further, it further includes outer body 4, movable plate 5 and top tight pieces 6, and the battery pack body is arranged in outer body 4
It is interior, free gap is respectively formed between the battery cell 2 that the both ends of outer body 4 are adjacent to, each free gap sets built-in
There is side energy storage monomer 7, the structure of side energy storage monomer 7 is identical as the structure of phase-change accumulation energy monomer 1, and movable plate 5 is vertically arranged
In any free gap and it is between side energy storage monomer 7 and outer body 4, and top tight pieces 6 pass through outer body 4 and hold out against in activity
On plate 5.Top tight pieces 6 include several puller bolts, several puller bolts are set side by side, for holding out against movable plate 5 in side
At portion's energy storage monomer 7, other can be realized the structure of the effect of holding out against also alternative puller bolt.
Further, the shape of outer body 4 is the cuboid or square of open top, is arranged on the outer wall of outer body 4
There are multiple first radiating fins 8.Multiple first radiating fins 8 are evenly arranged on other outsides in addition to 6 place lateral wall of top tight pieces
On wall.When outer body 4 has multiple first radiating fins 8, outer body 4 and 5 material of movable plate are that thermal coefficient is big, have added
The aluminium alloy of work, low cost.The effect of outer body 4 and movable plate 5 has: mechanical support, and heat dissipation increases thermal capacity, reduces battery
The temperature difference between monomer.
Further, other good heat dissipation effects or material at low cost can be used in outer body 4 and movable plate 5.Phase transformation storage
Can monomer 1 shape be plate shape, be clipped between battery cell 2 or and two sides, the optional shape of phase-change accumulation energy monomer 1 be also L-type,
C-type or it is O-shaped or other be conducive to it is thermally conductive, heat dissipation shape.
Further, thermally conductive sheet 1-2 is replaced by microflute flat-plate heat pipe 1-4, and microflute flat-plate heat pipe 1-4 is in outer utricule 1-1
Outer one end is set with convector radiator 3, and convector radiator 3 includes heat dissipation frame 3-1 and multiple second radiating fin 3-2, described
Multiple second radiating fin 3-2 are evenly equipped on the surrounding outer wall of heat dissipation frame 3-1.
Further, in microflute flat-plate heat pipe 1-4 partial insertion heat conduction with phase change body 1-3, outer utricule 1-1 is passed through, part is sudden and violent
It is exposed in air.
Further, the thermal coefficient of microflute flat-plate heat pipe 1-4 reaches 105W/mK is metal material thermal coefficient
Hundreds of to thousands of times, the both ends microflute flat-plate heat pipe 1-4 are respectively evaporation ends and colling end, the evaporation of microflute flat-plate heat pipe 1-4
One end in heat conduction with phase change body 1-3 is inserted at end, the heat for absorbing heat conduction with phase change body 1-3 is simultaneously quickly transferred to microflute plate heat
The colling end of pipe 1-4, and cooling medium, such as air heat transfer medium are transferred heat to by convector radiator 3.Microflute plate
The effect of heat pipe 1-4: first consist in battery pack body electric discharge when heat dissipation, equivalent to increase heat conduction with phase change body 1-3 thermal capacitance and
The heat of transformation is up to phase transition temperature T in Fig. 7pTime from a1It is deferred to b1, by phase transformation section from a2-a1, extend to b2-
b1.On the other hand, after battery pack body electric discharge, microflute flat-plate heat pipe 1-4 can also shorten heat conduction with phase change body 1-3 temperature, i.e.,
From the temperature at the end of electric discharge, it is set as Th, drop to T0Required time so that battery pack body be restored to as early as possible prepare it is next
The state of secondary electric discharge.This function is particularly important to this kind of phase-changing energy storage material of paraffin, because the time required to paraffin cooling being phase
Several times the time required to should heating up.
Further, the optional material of microflute flat-plate heat pipe 1-4 is aluminium alloy thermally conductive sheet or other metal plates, microflute plate
The shape of heat pipe 1-4 be L-type, c-type or other be conducive to it is thermally conductive, heat dissipation shape.
Further, thermally conductive sheet 1-2 is bar shaped plate body, and thermally conductive sheet 1-2 is aluminium sheet.
Further, several support particle 1-5 are also filled in external capsule body, several support particle 1-5 are in outer utricule 1-
Between 1 and heat conduction with phase change body 1-3, when heat conduction with phase change body 1-3 is in a molten state, several support particle 1-5 and heat conduction with phase change
Body 1-3 mixes setting.Support particle 1-5 is granular porous carbon.The partial size value range for supporting particle 1-5 is 1 to 4mm,
Best value is 1mm, porosity > 45%, wherein 70% the above are the hole for being open or communicating, pore-size > 10-4mm.Its
His material is also replaceable, but the size constancy of partial size, opening or hole.
Specific embodiment 3: present embodiment is that specific embodiment one or two further limit, what battery used
Technology, operating condition are different, and best charge and discharge temperature range is generally also different.The quality of the phase-change material of energy storage heat-sink unit and
Component proportion, backing material proportion, heat pipe and convector radiator, need to according to the battery variety and capacity of heat management system service,
The design conditions of equipment are designed.
If the maximum temperature that battery pack body is allowed is Th, initial temperature T0, then have heat balance formula as follows:
Qc=∑ mpi·Cpi△T+mc·Cpc·△T+mc·Jc+qd
Qc is the heat that battery pack body electric discharge generates, unit J in above formula；
MpFor outer body, backing material, coating film, microflute flat-plate heat pipe, convector radiator quality, unit kg；
Cpi is body, backing material, coating film, microflute flat-plate heat pipe, convector radiator in temperature range △ T average specific
Thermal capacitance, unit j/kgK；
△ T is heating △ T=Th-T0, unit K；
McFor phase-change material quality, unit kg；
CpcAverage specific for phase-change material in temperature rise section heats, unit j/kgK；
Jc is the phase-change material heat of transformation, unit j/kg；
qdFor heat of the energy storage heat-sink unit with convection current, radiation, conduction pattern to Ambient Transfer, unit during this temperature rise
For j.
The heat Qc that battery pack body electric discharge generates, the maximum temperature Th that battery pack body is allowed, initial temperature T0 are
Given, technology, the operating condition used by battery determines.In addition to qd, other every available proud correctly values.The estimated value of qd
It then needs to pass through experimental verification.Under the conditions of curve A indicates no microflute flat-plate heat pipe, convector radiator and body in Fig. 7, phase-change thermal storage
Material warms curve；Under the conditions of curve B indicates microflute flat-plate heat pipe, convector radiator and body, phase-change heat-storage material heating
Curve；Curve C has battery pack body heating under the conditions of microflute flat-plate heat pipe, convector radiator, body and phase-change heat-storage material bent
Line.
Specific embodiment 4: present embodiment is further limiting for specific embodiment three, support particle 1-5 is one
Particulate matter made of kind backing material, the purpose that support particle 1-5 is mixed with phase-change accumulation energy monomer 1 is to improve leading for its
Hot coefficient, and keep the type shape of phase-changing energy storage material.Particle 1-5 is supported to use aluminium gold metal particles, 2~4mm of partial size；
The mass percent of backing material and phase-changing energy storage material is 20%；Material used by support particle 1-5 is made
Active charcoal, carbon fiber, expanded perlite, expanded graphite, montmorillonite, porous ceramics, zeolite or copper product, according to the ratio of material
The properties such as weight, partial size, specific heat capacity, and meet heat balance formula, determine the proportion of this kind of material and phase-change material.
It is optional: active carbon, carbon fiber, expanded perlite, expanded graphite, montmorillonite, porous ceramics, zeolite, copper can be used
Deng other metallic particles etc..
In addition, there are also a kind of modes for the formation of support particle 1-5, by fine-crystal spume aluminium alloy, through-hole foam copper, through-hole foam carbon
Phase-change material is immersed as backing material.Porosity is about 85%, and size determination then needs to meet heat balance formula.
Specific embodiment 5: present embodiment is further limiting for specific embodiment one, two or three, outer utricule
1-1 is aluminium foil set.Aluminium foil set also can be replaced metal foil, high thermal conductive silicon rubber membrane or PC, PVC, PVF, PET, PVDF, ETFE
Or FEP polymer film, or use FEVE coating.
Specific embodiment 6: present embodiment is further limiting for specific embodiment one, two or three, outer utricule
The shape of 1-1 is vertical bar shaped, L shape or arc-shaped.The shape of outer utricule 1-1 according between battery cell 2 formed gap shape and
Fixed, arc-shaped is C-shaped, other are conducive to thermally conductive, heat dissipation shape can also.Outer utricule 1-1 is clamped in every two adjacent battery list
In gap between the lateral wall of body 2.Between outer utricule 1-1 is clamped between the lateral wall of every two adjacent battery cell 2
In gap.When the shape of outer utricule 1-1 is vertical bar shaped, the length is 40~60cm.When the shape of outer utricule 1-1 is L shape,
Vertical section or the length of horizontal segment are not less than 40cm.
Specific embodiment 7: present embodiment is further limiting for specific embodiment one, two or three, outer utricule
Several support particle 1-5 are filled in 1-1.Support particle 1-5, which is played, to be mixed in phase-changing energy storage material to improve the thermally conductive of its
The material of coefficient, support particle 1-5 are granular porous carbon.Aluminium gold metal particles, other carbon fibers, expanded perlite, expansion stone
Other metallic particles such as ink, montmorillonite, porous ceramics, zeolite, copper are also replaceable.Furthermore by fine-crystal spume aluminium alloy, through-hole foam copper
Immersing phase-change material also can be used as support particle.
Specific embodiment 8: present embodiment is further limiting for specific embodiment one, two or three, thermally conductive sheet
The length that 1-2 is inserted into heat conduction with phase change body 1-3 is thermally conductive length, and the value range of thermally conductive length is 20~40cm.
Specific embodiment 9: present embodiment is further limiting for specific embodiment one, two or three, thermally conductive sheet
1-2 is in the length outside outer utricule 1-1 as heat dissipation length, and heat dissipation length is less than or equal to 10cm.
Specific embodiment 10: present embodiment is further limiting for specific embodiment one, two or three, outer utricule
It is machined with the insert port of cooperation thermally conductive sheet 1-2 on 1-1, is provided with cushion rubber at insert port, one end of thermally conductive sheet 1-2 is set across cushion rubber
It sets in the inside of heat conduction with phase change body 1-3.Cushion rubber has sealing function, prevents from being inserted into the seam generated in outer utricule 1-1 because of thermally conductive sheet 1-2
Gap and cause leaking for heat conduction with phase change body 1-3.
Specific embodiment 11: present embodiment is further limiting for specific embodiment one, two or three, and paraffin is used
There is following good characteristic in the PCM of electronic device heat management.Solid-solid phase-change volume change is small, in chemistry with most metals
It is compatible corrosion-free, there is the biggish heat of transformation, phase transition temperature is adjustable, has good thermostability, oxidation stability and light stable
Property, thermal cycle behavior is stable and moderate.
Paraffin, this refers at room temperature with the high molecular weight alkane of waxy consistency.Paraffin is divided into two main subgroups,
Linear paraffin and branched paraffins.Due to the steric hindrance of molecular structure, branched paraffins generally can not be as good phase-change material.Stone
The transformation temperature of wax is directly related with the carbon atom number in material structure, and carbon atom number is more, and phase transition temperature is higher.Wherein contain
The alkane of 12-40 carbon atom has 6-80 degrees Celsius of transformation temperature.Industrial paraffin is the different alkane molecule of carbon atom number
Mixture, transformation temperature is lower than paraffin refined wax, and the heat of transformation is also lower than paraffin refined wax, and has more than one phase transformation peak, and phase transformation is shown as
One " section ".Therefore, the phase-change material system with different phase transformations " section " can be prepared as needed, can also be purchased to have and be closed
The commodity industrial paraffin in suitable phase transformation " section ".For example, " fusing point " of No. 44 soft waxs is 44~46 DEG C, " fusing point " of No. 46 soft waxs is
46~48 DEG C, " fusing point " of No. 48 soft waxs is 48~50 DEG C.As some disadvantages of phase-change material paraffin, as its thermal coefficient is inclined
It is small, it is allowed to form complex with " backing material " with high thermal conductivity coefficient, to improve heating conduction, and holding when being allowed to heated
Shape.
The material for substituting paraffin is fatty acid low-temperature phase-change material or inorganic matter eutectic low-temperature phase-change material:
Fatty acid low-temperature phase-change material: such as myristic acid+stearic acid, brown eleostearic acid+stearic acid, this kind of material have good
Good circulation melting/crystalline stability, fusing point is moderate, but price is usually the several times of paraffin.
Inorganic matter eutectic low-temperature phase-change material: based on crystalline hydrate salt, such as: Mg (NO3) 26H2O/
MgCl26H2O system (mass percent: 50%/50%) fusing point is 59.1 DEG C, heat of transformation 144KJ/kg,
(mass percent: 61.5%/38.5%) fusing point is 52 DEG C to Mg (NO3) 26H2O/NH4NO3 system, the heat of transformation
125.5KJ/kg。
The advantages of this kind of phase-change material be it is cheap, the heat of transformation is big, thermal coefficient is big.But there are two classes: mistake
Cold and mutually separate, some systems are corrosive, easily reveal, and have greater risk for battery pack thermal management applications, according to
Specific requirement suitably choose.
Claims (6)
1. a kind of self radiation type emergency cell group, it is characterised in that: it includes battery pack body and multiple phase-change accumulation energy monomers
(1), battery pack body includes multiple battery cells (2), is set side by side vertically between multiple battery cells (2), every two is adjacent
Battery cell (2) lateral wall between be formed with gap, a phase-change accumulation energy monomer (1) is provided in each gap, each
Becoming energy storage monomer (1) includes outer utricule (1-1) and thermally conductive sheet (1-2), is provided with heat conduction with phase change body (1-3) in outer utricule (1-1),
One end of thermally conductive sheet (1-2) passes through outer utricule (1-1) and is arranged in the inside of heat conduction with phase change body (1-3), thermally conductive sheet (1-2) it is another
End setting outer utricule (1-1) outside.
2. a kind of self radiation type emergency cell group according to claim 1, it is characterised in that: it further include outer body (4),
Movable plate (5) and top tight pieces (6), in outer body (4), the both ends of outer body (4) are adjacent to for the battery pack body setting
Battery cell (2) between be respectively formed with free gap, each free gap, which is set, is built-in with side energy storage monomer (7), side
The structure of energy storage monomer (7) is identical as the structure of phase-change accumulation energy monomer (1), and movable plate (5) is vertically arranged in any free gap
And it is between side energy storage monomer (7) and outer body (4), top tight pieces (6) pass through outer body (4) and hold out against in movable plate (5)
On.
3. a kind of self radiation type emergency cell group according to claim 2, it is characterised in that: the shape of outer body (4) is
The cuboid or square of open top are provided with multiple first radiating fins (8) on the outer wall of outer body (4).
4. a kind of self radiation type emergency cell group according to any one of claim 1 to 3, it is characterised in that: thermally conductive sheet
(1-2) is replaced by microflute flat-plate heat pipe (1-4), and microflute flat-plate heat pipe (1-4) is in the one end of outer utricule (1-1) outside and is set with pair
Flow heat dissipation device (3), convector radiator (3) include heat dissipation frame (3-1) and multiple second radiating fins (3-2), the heat dissipation frame (3-
1) multiple second radiating fins (3-2) are evenly equipped on surrounding outer wall.
5. a kind of self radiation type emergency cell group according to claim 4, it is characterised in that: the shape of outer utricule (1-1)
For vertical bar shaped, L shape or arc-shaped.
6. a kind of self radiation type emergency cell group according to claim 4, it is characterised in that: be also filled with number in external capsule body
A support particle (1-5), several support particles (1-5) are between outer utricule (1-1) and heat conduction with phase change body (1-3), work as phase transformation
When heat carrier (1-3) is in a molten state, several support particles (1-5) and heat conduction with phase change body (1-3) mix setting.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109659644A (en) * | 2019-01-31 | 2019-04-19 | 广东硅岳能源科技有限公司 | A kind of self radiation type emergency cell group of its composition of phase-change accumulation energy monomer |
| CN113571803A (en) * | 2021-07-27 | 2021-10-29 | 苏州清陶新能源科技有限公司 | Battery module and battery system |
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2019
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109659644A (en) * | 2019-01-31 | 2019-04-19 | 广东硅岳能源科技有限公司 | A kind of self radiation type emergency cell group of its composition of phase-change accumulation energy monomer |
| CN113571803A (en) * | 2021-07-27 | 2021-10-29 | 苏州清陶新能源科技有限公司 | Battery module and battery system |
| CN113571803B (en) * | 2021-07-27 | 2022-12-16 | 苏州清陶新能源科技有限公司 | Battery module and battery system |
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