CN108963382A - A kind of new-energy automobile power battery cooling system - Google Patents

A kind of new-energy automobile power battery cooling system Download PDF

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Publication number
CN108963382A
CN108963382A CN201810784466.3A CN201810784466A CN108963382A CN 108963382 A CN108963382 A CN 108963382A CN 201810784466 A CN201810784466 A CN 201810784466A CN 108963382 A CN108963382 A CN 108963382A
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China
Prior art keywords
plate
heat
connecting plate
heat sink
heat dissipation
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Granted
Application number
CN201810784466.3A
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Chinese (zh)
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CN108963382B (en
Inventor
王志强
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Tianjin Yuntong Xinsheng Technology Co ltd
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Individual
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/61Types of temperature control
    • H01M10/613Cooling or keeping cold
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/62Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625Vehicles
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/655Solid structures for heat exchange or heat conduction
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/655Solid structures for heat exchange or heat conduction
    • H01M10/6551Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/655Solid structures for heat exchange or heat conduction
    • H01M10/6554Rods or plates
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/656Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561Gases
    • H01M10/6563Gases with forced flow, e.g. by blowers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/656Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561Gases
    • H01M10/6566Means within the gas flow to guide the flow around one or more cells, e.g. manifolds, baffles or other barriers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00Batteries for particular applications
    • H01M2220/20Batteries in motive systems, e.g. vehicle, ship, plane
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

The invention belongs to automobile accessories engineering device technique fields, specifically a kind of new-energy automobile power battery cooling system, including heat dissipation base, top plate, battery fixed frame and dust excluding plate, cylindrical type groove built in position among heat dissipation base, bidirectional screw plate is set in cylindrical type groove, air inlet is arranged in heat dissipation base bottom end, and air inlet is connected by hose with gasing pump;Air inlet is located at the center of heat dissipation base bottom end, and air inlet is communicated with bidirectional screw plate, and venthole is evenly arranged on heat dissipation base top surface, and outlet hole number is multiple;Top plate is located above heat dissipation base, is symmetrically arranged with air inlet, venthole and bidirectional screw plate on top plate;Battery fixed frame is mounted between heat dissipation base and top plate, and air hole is arranged in battery fixed frame side;For dust excluding plate between heat dissipation base and top plate, dust excluding plate is located at the outside of battery fixed frame.The present invention can carry out high efficiency and heat radiation to battery, while realize the effective protection of battery.

Description

A kind of new-energy automobile power battery cooling system
Technical field
The invention belongs to automobile accessories engineering device technique field, specifically a kind of new-energy automobile power battery cooling system System.
Background technique
Currently, electric car has many advantages, such as low pollution, low noise, using new energy, it has also become Traffic Systems One important component.From now using the case where from the point of view of, electric car, which is gathered around, to hold out broad prospects.But now electronic Automobile still has several drawbacks: the main power resources power battery of such as electric car, it must be in suitable temperature Optimal performance can be played, and its suitable temperature is usually 10~35 DEG C, if without cooling down equipment, running car accordingly The temperature of power battery will soon be more than 35 DEG C in the process, once power battery overheats, not only will affect the property of battery itself Can, shorten its service life, but also will affect the safety of electric car driving.
Currently, the air cooling mode that uses of electric automobile power battery there are leakproofness is insufficient and battery protection ability compared with Difference has been easy sundries and has entered battery case.
Summary of the invention
In order to make up for the deficiencies of the prior art, a kind of new-energy automobile power battery cooling system proposed by the present invention, this Invention carries out high efficiency and heat radiation for providing a kind of automobile batteries cooling system, to battery, while realizing the effective protection of battery.This Invention quickly dissipates battery using the cold air of upper and lower convection current by setting heat dissipation base, top plate and battery fixed frame Heat, battery fixed frame outside are arranged dust excluding plate, prevent extraneous dust from entering, improve dust-proof effect.
The technical solution adopted by the present invention to solve the technical problems is: a kind of new-energy automobile power of the present invention Battery cooling system, including heat dissipation base, top plate, battery fixed frame and dust excluding plate, circle built in the position of the heat dissipation base centre Column type groove, cylindrical type groove is interior to be arranged bidirectional screw plate, and bidirectional screw plate is used to carry out evenly dispersed, heat dissipation base to air Air inlet is arranged in bottom end, and air inlet is connected by hose with gasing pump, and gasing pump drops battery for providing cold air Temperature;The air inlet hole number is one, and air inlet is located at the center of heat dissipation base bottom end, air inlet and bidirectional screw plate phase It is logical, venthole is evenly arranged on heat dissipation base top surface, outlet hole number is multiple;The top plate is located above heat dissipation base, Air inlet, venthole and bidirectional screw plate are symmetrically arranged on top plate;The battery fixed frame is mounted on heat dissipation base and top plate Between, battery fixed frame is for placing battery, and venthole is communicated with battery fixed frame, and cold air, which enters battery through venthole, to be fixed Frame radiates to battery, and air hole is arranged in battery fixed frame side, and the hot-air inside battery fixed frame is outside through air hole Discharge;The dust excluding plate is between heat dissipation base and top plate, and dust excluding plate is located at the outside of battery fixed frame, and dust excluding plate is for preventing Only dust enters inside battery, while the heat inside battery fixed frame being transmitted outward.Cold air is double after air inlet enters Cold air is dispersed to spiral plate, the cold air after dispersion is drained into battery fixed frame by venthole, fixes to battery Battery in frame cools down.
The dust excluding plate includes connecting plate, heat sink and exhaustion plate, and the connecting plate section is " L " type, connecting plate quantity It is four, four connecting plates are distributed as four angles of square, pass through two blocks of heat sinks and one piece of exhaustion plate between two connecting plates Realize connection, exhaustion plate is located between two blocks of heat sinks, and two connecting plates are connected with two blocks of heat sinks respectively, and connecting plate dissipates Hot plate and exhaustion plate form a complete square structure, and high temperature resistant spongy layer is arranged in the upper and lower ends of heat sink, and heat sink is logical It crosses high temperature resistant spongy layer to be in contact with heat dissipation base and top plate respectively, high temperature resistant spongy layer is for avoiding dust from passing through heat sink top Portion enters battery fixed frame, improves dirt exclusion capabilities, and connecting plate is provided with step-like chute in the position contacted with heat sink, radiates One end of plate is located in the step-like chute of connecting plate, and connecting plate can be slided along step-like chute, and the end of heat sink is set It is equipped with piston plate, piston plate is in contact with the side wall of the step-like chute of connecting plate, is formed inside piston plate and step-like chute Closed cavity, cavity is interior to store mercury solution, and when the temperature increases, mercury solution vaporization becomes mercury vapour, and volume increases, and mercury vapour pushes scattered Hot plate is moved out along step-like chute, to be increased by the square structure size that connecting plate, heat sink and exhaustion plate form Greatly, it improves heat sink and outside air carries out the ability of heat exchange, heat dissipation effect enhances;Exhaust is provided on the exhaustion plate Hole, gas vent are connect with suction pump, and the hot-air in battery fixed frame is extracted in suction pump out, accelerate heat dissipation.
Reinforcing rib is set on the connecting plate, and reinforcing rib section is trapezium structure, along reinforcement on the front end face of reinforcing rib The upper surface of muscle is provided with trapezoidal groove, and setting trapezoidal groove is reinforced convenient for reinforcing rib is mounted on connecting plate by bolt The presence of muscle prevents connector to deform because of stress, meanwhile, detachable connection improves installation speed, convenient for tearing open It unloads.
It is provided with the through-hole of inside and outside wall on the heat sink, heat conducting bar is set in through-hole;Heat conducting bar one end position On the inside of heat sink, the heat conducting bar other end is located on the outside of heat sink, and heat conducting bar is provided in the one end being located on the inside of heat sink and leads Heat block, heat conducting bar are provided with radiating block in the one end being located on the outside of heat sink, and heat-conducting block is used for the heat being discharged with battery fixed frame Air carries out heat exchange, then transfers heat to radiating block, realizes rapid cooling, spring is arranged between heat-conducting block and heat sink One, spring one is set on heat conducting bar;Position coaxial with the through hole is built-in with rectangular chamber inside the heat sink, on heat conducting bar It is provided with fixed block, fixed block is located in the rectangular chamber of heat sink.Hot-air in battery fixed frame is through air hole to outlet After out, heat-conducting block and hot-air carry out heat exchange, and heat is transmitted to radiating block through heat-conducting block and heat conducting bar outward, makes radiating block temperature Degree increases, and due to radiating block and contacting external air, realizes the outside transmitting of heat.
The heat-conducting block is set as arc-shaped concave far from one end of heat conducting bar, and arc-shaped concave is for increasing heat-conducting block and inside Venthole is arranged in the contact area of hot-air, heat-conducting block inside, further increases the heat exchange of heat-conducting block and hot-air, improves heat transfer Efficiency.
It is vertically-mounted between the heat dissipation base and top plate to have fixing seat;The fixed seating in the outside of connecting plate, Gu Reservation is located on the diagonal line of the square structure of connecting plate, heat sink and exhaustion plate composition, the quantity and connecting plate of fixing seat Quantity it is identical, telescopic rod is fixedly installed in fixing seat;Described telescopic rod one end is fixed in fixing seat, the telescopic rod other end It is fixed on connecting plate.Since telescopic rod is fixed in fixing seat, after mercury solution temperature increases inside connecting plate, connecting plate dissipates Hot plate and exhaustion plate expand outwardly, and the presence of telescopic rod moves connecting plate along the diagonal of square structure always It is dynamic, it ensure that the uniform expansion of connecting plate, heat sink and exhaustion plate, arbitrarily movement avoided to cause danger.
Scissor-type mechanism is set between the connecting plate and exhaustion plate;The scissor-type mechanism is located at the outside of heat sink, Scissor-type mechanism is respectively hinged at the end of connecting plate and exhaustion plate, scissor-type is in-house, scissor-type mechanism and connecting plate with And spring two is provided between scissor-type mechanism and exhaustion plate.The presence of scissor-type mechanism increases the rigidity of heat sink, keeps away When exempting from heat sink and being moved along connecting plate, is damaged because rigidity is insufficient, improve the service life of heat sink.
Beneficial effects of the present invention are as follows:
1. a kind of new-energy automobile power battery cooling system of the present invention, the present invention by setting heat dissipation base, Top plate, battery fixed frame and bidirectional screw plate carry out quick Homogeneouslly-radiating, battery to battery using the cold air of upper and lower convection current Dust excluding plate is set on the outside of fixed frame, extraneous dust is prevented to enter, while dust excluding plate can transmit outward internal heat, mention High heat dissipation effect.
2. a kind of new-energy automobile power battery cooling system of the present invention, dust excluding plate of the present invention includes connecting Fishplate bar, heat sink and exhaustion plate, the space enlargement for surrounding dust excluding plate using the principle that mercury solution thermally expands in advance, further increase The ability of heat dissipation.
3. a kind of new-energy automobile power battery cooling system of the present invention, connecting plate and exhaustion plate of the present invention Between be arranged scissor-type mechanism, played a supporting role using scissor-type mechanism to heat sink, heat sink avoided to be damaged, improve Whole service life.
Detailed description of the invention
Fig. 1 is main view of the invention;
Fig. 2 is the A-A cross-sectional view in Fig. 1;
Fig. 3 is the B-B cross-sectional view in Fig. 1;
Fig. 4 is the schematic diagram that heat conducting bar, heat-conducting block and radiating block of the present invention are mounted on heat sink;
Fig. 5 is left view of the invention;
In figure: heat dissipation base 1, top plate 2, battery fixed frame 3, dust excluding plate 4, bidirectional screw plate 5, air inlet 11, air hole 31, connecting plate 41, heat sink 42, exhaustion plate 43, high temperature resistant spongy layer 44, step-like chute 411, mercury solution 45, gas vent 431, Reinforcing rib 46, heat conducting bar 47, heat-conducting block 48, radiating block 49, fixing seat 6, telescopic rod 7, scissor-type mechanism 8.
Specific embodiment
It is said as follows using structure of Fig. 1-Fig. 5 to the automobile power cell cooling system of an embodiment of the present invention It is bright.
As depicted in figs. 1 and 2, a kind of new-energy automobile power battery cooling system of the present invention, including heat dissipation bottom Seat 1, top plate 2, battery fixed frame 3 and dust excluding plate 4, cylindrical type groove built in the intermediate position of the heat dissipation base 1, cylindrical type groove Interior setting bidirectional screw plate 5, bidirectional screw plate 5 are used to carry out air evenly dispersed, 1 bottom end of heat dissipation base setting air inlet 11, air inlet 11 is connected by hose with gasing pump, and gasing pump cools down to battery for providing cold air;The air inlet 11 quantity of hole is one, and air inlet 11 is located at the center of 1 bottom end of heat dissipation base, and air inlet 11 is communicated with bidirectional screw plate 5, is dissipated Venthole is evenly arranged on hot 1 top surface of pedestal, outlet hole number is multiple;The top plate 2 is located at 1 top of heat dissipation base, top Air inlet 11, venthole and bidirectional screw plate 5 are symmetrically arranged on plate 2;The battery fixed frame 3 is mounted on 1 He of heat dissipation base Between top plate 2, battery fixed frame 3 is for placing battery, and venthole is communicated with battery fixed frame 3, and cold air enters through venthole Battery fixed frame 3, radiates to battery, and air hole 31 is arranged in 3 side of battery fixed frame, and the heat inside battery fixed frame 3 is empty Gas is discharged through air hole 31;The dust excluding plate 4 between heat dissipation base 1 and top plate 2, fix positioned at battery by dust excluding plate 4 The outside of frame 3, dust excluding plate 4 is for preventing dust from entering inside battery, while by the heat inside battery fixed frame 3 to unofficial biography It passs.Cold air is after the entrance of air inlet 11, and bidirectional screw plate 5 disperses cold air, and the cold air after dispersion passes through outlet Hole is drained into battery fixed frame 3, cools down to the battery in battery fixed frame 3.
As shown in figure 3, the dust excluding plate 4 includes connecting plate 41, heat sink 42 and exhaustion plate 43,41 section of connecting plate For " L " type, 41 quantity of connecting plate is four, and four connecting plates 41 are distributed as four angles of square, is led between two connecting plates 41 It crosses two blocks of heat sinks 42 and one piece of exhaustion plate 43 realizes connection, exhaustion plate 43 is located between two blocks of heat sinks 42, two connecting plates 41 are connected with two blocks of heat sinks 42 respectively, and connecting plate 41, heat sink 42 and exhaustion plate 43 form a complete square structure, The upper and lower ends of heat sink 42 are arranged high temperature resistant spongy layer 44, heat sink 42 by high temperature resistant spongy layer 44 respectively with heat dissipation base 1 and top plate 2 be in contact, high temperature resistant spongy layer 44 is improved for avoiding dust by entering battery fixed frame 3 at the top of heat sink 42 Dirt exclusion capabilities, connecting plate 41 are provided with step-like chute 411 in the position contacted with heat sink 42, and one end of heat sink 42 is located at In the step-like chute 411 of connecting plate 41, connecting plate 41 can be slided along step-like chute 411, and the end of heat sink 42 is set It is equipped with piston plate, piston plate is in contact with the side wall of the step-like chute 411 of connecting plate 41, piston plate and step-like chute 411 Inside forms closed cavity, stores mercury solution 45 in cavity, and when the temperature increases, the vaporization of mercury solution 45 becomes mercury vapour, and volume increases, Mercury vapour pushes heat sink 42 to move out along step-like chute 411, thus by connecting plate 41, heat sink 42 and exhaustion plate 43 The square structure size of composition increases, and improves heat sink 42 and outside air carries out the ability of heat exchange, heat dissipation effect increases By force;Gas vent 431 is provided on the exhaustion plate 43, gas vent 431 is connect with suction pump, and suction pump will be in battery fixed frame 3 Hot-air extraction, accelerate heat dissipation.
As shown in figure 3, reinforcing rib 46 is arranged on the connecting plate 41,46 section of reinforcing rib is trapezium structure, reinforcing rib 46 Front end face on the upper surface of reinforcing rib 46 is provided with trapezoidal groove, setting trapezoidal groove is convenient for reinforcing rib through bolt 46 are mounted on connecting plate 41, and the presence of reinforcing rib 46 prevents connector to deform because of stress, meanwhile, detachable company It connects and improves installation speed, easy to disassemble.
As shown in figure 4, being provided with the through-hole of inside and outside wall on the heat sink 42, heat conducting bar 47 is set in through-hole;Institute It states 47 one end of heat conducting bar and is located at 42 inside of heat sink, 47 other end of heat conducting bar is located at 42 outside of heat sink, and heat conducting bar 47 is being located at One end of 42 inside of heat sink is provided with heat-conducting block 48, and heat conducting bar 47 is provided with radiating block in the one end for being located at 42 outside of heat sink 49, the hot-air that heat-conducting block 48 is used to be discharged with battery fixed frame 3 carries out heat exchange, then transfers heat to radiating block 49, real Existing rapid cooling, is arranged spring one between heat-conducting block 48 and heat sink 42, spring one is set on heat conducting bar 47;The heat sink 42 inside position coaxial with the through hole are built-in with rectangular chamber, fixed block are provided on heat conducting bar 47, fixed block is located at heat sink In 42 rectangular chamber.After air hole 31 discharges, heat-conducting block 48 and hot-air carry out hot-air in battery fixed frame 3 Heat exchange, heat are transmitted to radiating block 49 through heat-conducting block 48 and heat conducting bar 47 outward, increase 49 temperature of radiating block, due to heat dissipation Block 49 and contacting external air realize the outside transmitting of heat.
As shown in figure 4, the heat-conducting block 48 is set as arc-shaped concave far from one end of heat conducting bar 47, arc-shaped concave is for increasing Venthole is arranged inside heat-conducting block 48 in the contact area of big heat-conducting block 48 and hot inside air, further increase heat-conducting block 48 with The heat exchange of hot-air improves heat transfer efficiency.
As shown in figure 3, vertically-mounted between the heat dissipation base 1 and top plate 2 have fixing seat 6;The fixing seat 6, which is located at, to be connected The outside of fishplate bar 41, fixing seat 6 are located at the diagonal line for the square structure that connecting plate 41, heat sink 42 and exhaustion plate 43 form On, the quantity of fixing seat 6 is identical as the quantity of connecting plate 41, and telescopic rod 7 is fixedly installed in fixing seat 6;The telescopic rod 7 one End is fixed in fixing seat 6, and 7 other end of telescopic rod is fixed on connecting plate 41.Since telescopic rod 7 is fixed in fixing seat 6, when After 41 inside mercury solution of connecting plate, 45 temperature increases, connecting plate 41, heat sink 42 and exhaustion plate 43 are expanded outwardly, and telescopic rod 7 is deposited Connecting plate 41 is moved along the diagonal of square structure always, ensure that connecting plate 41, heat sink 42 and row The uniform expansion of gas plate 43 avoids arbitrarily movement from causing danger.
As shown in figure 5, scissor-type mechanism 8 is arranged between the connecting plate 41 and exhaustion plate 43;8, the scissor-type mechanism In the outside of heat sink 42, scissor-type mechanism 8 is respectively hinged at the end of connecting plate 41 and exhaustion plate 43, in scissor-type mechanism 8 Spring two is provided between portion, scissor-type mechanism 8 and connecting plate 41 and scissor-type mechanism 8 and exhaustion plate 43.Scissor-type machine The presence of structure 8 increases the rigidity of heat sink 42, when heat sink 42 being avoided to move along connecting plate 41, causes because rigidity is insufficient Damage, improves the service life of heat sink 42.
Specific workflow is as follows:
Gasing pump inputs cold air from air inlet 11, and cold air is after the entrance of air inlet 11, and bidirectional screw plate 5 is to cold sky Gas is dispersed, and the cold air after dispersion is drained into battery fixed frame 3 by venthole, to the battery in battery fixed frame 3 into Row cools.
As the temperature in battery frame increases, hot-air is discharged through air hole 31, and then suction pump passes through gas vent 431 go out hot empty pump, accelerate heat dissipation;When temperature increases, the vaporization of mercury solution 45 becomes mercury vapour, and volume increases, and mercury vapour, which pushes, to be dissipated Hot plate 42 is moved out along the step-like chute 411 of connecting plate 41, thus by connecting plate 41, heat sink 42 and 43 groups of exhaustion plate Increase at one square structure size, improves heat sink 42 and outside air carries out the ability of heat exchange, heat dissipation effect increases By force.Since telescopic rod 7 is fixed in fixing seat 6, after 41 inside mercury solution of connecting plate, 45 temperature increases, connecting plate 41, heat sink 42 and exhaustion plate 43 expand outwardly, the presence of telescopic rod 7 makes connecting plate 41 always along the diagonal of square structure It is mobile, it ensure that the uniform expansion of connecting plate 41, heat sink 42 and exhaustion plate 43, arbitrarily movement avoided to cause danger.
For hot-air in battery fixed frame 3 after air hole 31 discharges, heat-conducting block 48 and hot-air carry out heat exchange, Heat is transmitted to radiating block 49 through heat-conducting block 48 and heat conducting bar 47 outward, make 49 temperature of radiating block increase, due to radiating block 49 with Contacting external air realizes the outside transmitting of heat.
The presence of scissor-type mechanism 8 increases the rigidity of heat sink 42, when heat sink 42 being avoided to move along connecting plate 41, It is damaged because rigidity is insufficient, improves the service life of heat sink 42.
More than, it is illustrated about one embodiment of the present invention, but the present invention is not limited to the above embodiments, It does not depart from and is able to carry out various changes in the range of present subject matter.
(A) in the above-described embodiment, connecting plate moves under the action of telescopic rod along the diagonal of square, But not limited to this, telescoping cylinder can also be changed to slide block structure etc..
(B) in the above-described embodiment, closed cavity is formed inside piston plate and step-like chute, stores mercury in cavity Liquid, but not limited to this, mercury solution can also be changed to chloroform or methanol etc..
Industrial applicibility
According to the present invention, the heat dissipation effect of automobile batteries improves, battery protection ability enhancing, thus this battery cooling system It is useful in automobile accessories device field.

Claims (7)

1. a kind of new-energy automobile power battery cooling system, it is characterised in that: including heat dissipation base (1), top plate (2), battery Fixed frame (3) and dust excluding plate (4), cylindrical type groove built in the intermediate position of the heat dissipation base (1), the interior setting of cylindrical type groove are double To spiral plate (5), air inlet (11) are arranged in heat dissipation base (1) bottom end, and air inlet (11) is connected by hose with gasing pump, defeated Air pump cools down to battery for providing cold air;Air inlet (11) quantity is one, and air inlet (11) is located at heat dissipation bottom The center of seat (1) bottom end, air inlet (11) are communicated with bidirectional screw plate (5), are evenly arranged on heat dissipation base (1) top surface Venthole, outlet hole number are multiple;The top plate (2) is located above heat dissipation base (1), be symmetrically arranged on top plate (2) into Stomata (11), venthole and bidirectional screw plate (5);The battery fixed frame (3) be mounted on heat dissipation base (1) and top plate (2) it Between, for placing battery, venthole communicates battery fixed frame (3) with battery fixed frame (3), the setting of battery fixed frame (3) side Air hole (31), the internal hot-air of battery fixed frame (3) are discharged through air hole (31);The dust excluding plate (4), which is located at, to be dissipated Between hot pedestal (1) and top plate (2), dust excluding plate (4) is located at the outside of battery fixed frame (3), and dust excluding plate (4) is for preventing dust It is transmitted outward into inside battery, while by the internal heat of battery fixed frame (3).
2. a kind of new-energy automobile power battery cooling system according to claim 1, it is characterised in that: the dust excluding plate It (4) include connecting plate (41), heat sink (42) and exhaustion plate (43), connecting plate (41) section is " L " type, connecting plate (41) Quantity is four, and four connecting plates (41) are distributed as four angles of square, passes through two blocks of heat sinks between two connecting plates (41) (42) and one piece of exhaustion plate (43) realizes connection, and exhaustion plate (43) is located between two pieces of heat sinks (42), two connecting plates (41) It is connected respectively with two pieces of heat sinks (42), connecting plate (41), heat sink (42) and exhaustion plate (43) composition one are complete square High temperature resistant spongy layer (44) are arranged in the upper and lower ends of shape structure, heat sink (42), and heat sink (42) passes through high temperature resistant spongy layer (44) it is in contact respectively with heat dissipation base (1) and top plate (2), connecting plate (41) is provided in the position contacted with heat sink (42) Step-like chute (411), one end of heat sink (42) are located in the step-like chute (411) of connecting plate (41), connecting plate (41) It can be slided along step-like chute (411), the end of heat sink (42) is provided with piston plate, piston plate and connecting plate (41) The side wall of step-like chute (411) is in contact, and closed cavity, storage in cavity are formed inside piston plate and step-like chute (411) Deposit mercury solution (45);It is provided with gas vent (431) on the exhaustion plate (43), gas vent (431) is connect with suction pump, and suction pump will Hot-air extraction in battery fixed frame (3), accelerates heat dissipation.
3. a kind of new-energy automobile power battery cooling system according to claim 2, it is characterised in that: the connecting plate (41) reinforcing rib (46) are set on, reinforcing rib (46) section is trapezium structure, along reinforcing rib on the front end face of reinforcing rib (46) (46) upper surface is provided with trapezoidal groove, and reinforcing rib (46) is mounted on connecting plate (41) by bolt, and reinforcing rib (46) is used In preventing connector from deforming because of stress.
4. a kind of new-energy automobile power battery cooling system according to claim 2, it is characterised in that: the heat sink (42) it is provided with the through-hole of inside and outside wall on, heat conducting bar (47) are set in through-hole;Described heat conducting bar (47) one end is located at heat dissipation On the inside of plate (42), heat conducting bar (47) other end is located on the outside of heat sink (42), and heat conducting bar (47) is being located on the inside of heat sink (42) One end be provided with heat-conducting block (48), heat conducting bar (47) be located at heat sink (42) on the outside of one end be provided with radiating block (49), Spring one is set between heat-conducting block (48) and heat sink (42), and spring one is set on heat conducting bar (47);The heat sink (42) Internal position coaxial with the through hole is built-in with rectangular chamber, fixed block is provided on heat conducting bar (47), fixed block is located at heat sink (42) in rectangular chamber.
5. a kind of new-energy automobile power battery cooling system according to claim 4, it is characterised in that: the heat-conducting block (48) one end far from heat conducting bar (47) is set as arc-shaped concave, and arc-shaped concave increase heat-conducting block (48) connects with hot inside air Contacting surface product, heat-conducting block (48) is internal to be arranged venthole, further increases the heat exchange of heat-conducting block (48) and hot-air, improves heat transfer effect Rate.
6. a kind of new-energy automobile power battery cooling system according to claim 2, it is characterised in that: the heat dissipation bottom It is vertically-mounted between seat (1) and top plate (2) to have fixing seat (6);The fixing seat (6) is located at the outside of connecting plate (41), fixed Seat (6) is located on the diagonal line of the square structure of connecting plate (41), heat sink (42) and exhaustion plate (43) composition, fixing seat (6) quantity is identical as the quantity of connecting plate (41), and telescopic rod (7) are fixedly installed in fixing seat (6);The telescopic rod (7) One end is fixed on fixing seat (6), and telescopic rod (7) other end is fixed on connecting plate (41).
7. a kind of new-energy automobile power battery cooling system according to claim 2, it is characterised in that: the connecting plate (41) scissor-type mechanism (8) are set between exhaustion plate (43);The scissor-type mechanism (8) is located at the outside of heat sink (42), Scissor-type mechanism (8) is respectively hinged at the end of connecting plate (41) and exhaustion plate (43), scissor-type mechanism (8) inside, scissor-type Spring two is provided between mechanism (8) and connecting plate (41) and scissor-type mechanism (8) and exhaustion plate (43).
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