A kind of heat abstractor for batteries of electric automobileTechnical field
It the utility model is related to a kind of heat abstractor, and in particular to a kind of heat abstractor for batteries of electric automobile.
Background technology
As petroleum-based energy is increasingly highlighted by exploitation energetically, energy crisis.Gasoline locomotive using oil as powerDue to its huge recoverable amount, a series of problem such as energy shortage, environmental protection is faced with.Electric automobile is small with its pollution,The advantages such as noise is low bring hope to people for convenient and environmentally friendly pursuit, are alleviating energy crisis, reduce environmental pollution, realOne of important channel of existing low-carbon environment-friendly sustained economic development.
Lithium-ions battery has the advantages that higher ratio energy, larger specific power, therefore electric power storage in the marketPond electric automobile is mainly using high performance lithium battery as energy storage component, but lithium battery in the operating condition easily produces temperatureSpend height, non-uniform temperature between battery cell, it is difficult to naturally carry out cooling radiating, cause battery life greatly reduce andChange cell frequency to greatly increase, in turn result in the waste to resource.
Utility model content
In order to solve under electric automobile working condition, temperature is uneven between battery cell, it is difficult to this technology of natural coolingProblem, the utility model provide a kind of heat abstractor for batteries of electric automobile.
A kind of heat abstractor for batteries of electric automobile, it includes a closed casing for being used to carry battery cell,The air inlet and exhaust outlet being arranged on the casing；Also include some water conservancy diversion aeration tubes for being arranged on the box house, instituteWater conservancy diversion aeration tube is stated to close close to the one end open of the air inlet, the other end；Opened up on the wall of the water conservancy diversion aeration tube someFirst through hole；Air amplifier is set at the air inlet.
The casing is isosceles trapezoidal structure.
One plate is set along the eminence of isosceles trapezoid casing, it is closed that the plate, the waist of isosceles trapezoid and bottom form oneAir chamber, the air inlet connect with the air chamber.
The second through hole that two rows are parallel to each other is opened up along the length direction of the plate, the second through hole described in two rows is mutually handed overMistake, the openend of the water conservancy diversion aeration tube are connected by second through hole with the air chamber.
The air amplifier is 4, is distributed in equilateral triangle, each on three summits of the equilateral triangle to set oneThe air amplifier, the 4th air amplifier are arranged on the center of the triangle.
The annular chamber gap of the air amplifier is 0.06mm.
The through hole on the water conservancy diversion aeration tube increases successively from air chamber to closing extreme direction.
The air inlet sets standby low-temperature receiver portion, and standby low-temperature receiver portion is provided by the refrigerating plant of electric automobile.
The box house is provided with the first sensor for detecting the battery cell temperature, and for detectingState the second sensor of box house environment temperature.
The utility model uses above-mentioned technical proposal, and what can be reached has the technical effect that：1. due to using air amplifier,High pressure draught is produced, convection current is carried out by the air between water conservancy diversion aeration tube and battery cell, realizes and battery cell is dissipatedHeat；2. because the utility model device does not use sports type part, structure is safe, and noise is small；3. due to the utility model structureIt is simple and reliable, it is easy to safeguard；4. because the utility model is using the design of dual low-temperature receiver, reduces outdoor temperature and radiated for battery packInfluence, battery can be extended.
Brief description of the drawings
Fig. 1 is the utility model apparatus structure schematic diagram；
Brief description of the drawings：
10. casing；100. waist；101. bottom；11. air inlet；12. air amplifier；13. plate；14. air chamber；15.First through hole；16. water conservancy diversion aeration tube；17. exhaust outlet；18. standby low-temperature receiver portion.
Embodiment
Below in conjunction with embodiment, the utility model is further described in detail, but is not limited to this.
As shown in figure 1, the utility model includes a closed casing 10 for being used to carry battery cell, casing 10 usesIsosceles trapezoidal structure, one is fastenedly connected the air inlet 11 in the one end of 10 bottom of casing 101, and the inlet end of air inlet 11 sets fourIndividual air amplifier 12, four air amplifiers 12 are distributed in equilateral triangle, i.e. each summit of triangle has one, centerThere is one.The direction high along casing 10 sets a plate 13, and waist 100, bottom 101 and the plate 13 of casing 10 form an air chamber 14,Air inlet 11 connects with air chamber 14.Two are opened up along the length direction of plate 13 and ranked first through hole 15, two, which ranked first through hole 15, interlocksSet.A water conservancy diversion aeration tube 16 is horizontally mounted in each first through hole 15, water conservancy diversion aeration tube 16 is connected with first through hole 15One end open, other end closing.Some second through hole (not shown)s are offered along the tube wall of water conservancy diversion aeration tube 16.CasingThe other end of 10 bottoms 101 sets an exhaust outlet 17, and the setting of air inlet 11 and exhaust outlet 17 forms Clothoid type air-flowStructure.
Preferably, the quantity of first through hole 15 is 8, each four of two rows.A diameter of 20mm of first through hole 15.
Preferably, airstrainer (not shown) is provided between air inlet 11 and air chamber 14.
Preferably, the gap of the annular chamber (not shown) inside air amplifier 12 is 0.06mm.
Preferably, the second through-hole diameter increases successively along air chamber 14 to closing extreme direction, minimum diameter in the second through holeFor 1.5mm, to be up to 5mm, spacing 30mm.
Preferably, it is provided with airstrainer between air inlet 11 and air chamber 14.
Preferably, standby low-temperature receiver portion 18 is set in air inlet 11, there is provided dual low-temperature receiver control, in summer or empty with the external worldTemperature degree relative to battery temperature it is higher when, radiated using standby low-temperature receiver.
Preferably, casing 10 is internally provided with the first sensor (not shown) for detecting battery cell temperature,And for detecting the second sensor (not shown) of the interior environment temperature of casing 10.When first sensor detects electricityPond group internal sensor temperature is higher than 40 DEG C, and the temperature difference of the internal environment of casing 10 detected with second sensor is less than 15-At 20 DEG C, air inlet 11 is closed, opens standby low-temperature receiver portion 18, had both prevented excessive hot-air from entering heat exchanger effectiveness is reduced,It also can guarantee that air inflow will not fall sharply simultaneously.
Preferably, the compressed air in standby low-temperature receiver portion 18 is provided by automobile refrigeration equipment.
Preferably, the oiling conventional exhaust device of exhaust outlet 17, using fan exhaust.
The utility model when in use, the air vent air inlet amplifier 12 that compressed air passes through air amplifier 12Annular chamber, the thin air layer of high speed is produced at the gap of annular chamber, because the flow direction of wall attachment effect air layer changes, passed throughThe centre bore of air amplifier 12 enters air inlet chamber 14, and heat exchange is carried out via heat caused by water conservancy diversion aeration tube 16 and battery pack,Excluded via exhaust outlet 17, reach the effect of temperature between reduction battery cell.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is rightFor those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change orChange.There is no necessity and possibility to exhaust all the enbodiments, and the obvious change thus extended out orChange still among the utility model creation scope of the claims.