A kind of temperature control system for power cell of electric
Technical field
The utility model belongs to electrokinetic cell field, and in particular to a kind of temperature control system for power cell of electric.
Background technology
Electric automobile refers to using vehicle power as power, relatively conventional fuel-engined vehicle, does not produce waste gas discharge, mesh during traveling
Preceding electric automobile obtains wideling popularize for country as new-energy automobile.
Experimental study shows that (discharge and recharge) temperature that dynamic lithium battery optimum used in pure electric automobile works is 35~45
DEG C, the of short duration time is used in summer hot area (such as 32 DEG C of temperatures above), battery pack temperature can easily exceed optimum work
Temperature, cause the temperature difference between the serious and each battery cell of battery bag heating is bigger may finally cause parts failure, rise
Fire even explodes;Severe cold area (such as -25 DEG C of temperature below) is in use, discharge performance, the charging of dynamic lithium battery in the winter time
All it is greatly reduced by ability by low temperature effect.Above mentioned problem can all influence the dynamic property and mileages of continuation of electric automobile, even
The service life of electrokinetic cell is influenceed, seriously limits the scope of its application and popularization.
In order to solve above-mentioned Low Temperature Problems, way at this stage is as follows:Temperature control device is set in battery bag, while in electricity
The internal reasonable Arrangement of pond bag hot Hot-air fan, setting power resistor unit or electric heating film material, BMS (battery management system) detections
When being higher or lower than design temperature to battery cell environment temperature, temperature control device is set to start working.In current field of radiating, wind
Although cold heat sink is substantially departing from the vicious circle of high noisy violence radiating, generally towards large volume, more heat pipes are also overweight
The direction of amount is developed, and this brings very big inconvenience to user in the actual use of radiator and installation, while also to battery
The dustproof and waterproof index of bag brings very big test.In view of above-mentioned air-cooled occurred predicament, liquid cooling heat radiator can solve substantially
Certainly;Heated simultaneously using heating film in the change of severe cold area temperature and the complexity of electric automobile applying working condition, make the heat time
It is very long, and if the heating system frequently use, battery electric energy in itself can be consumed significantly, influence the dynamic property of vehicle and continuous
Row mileage.Both at home and abroad still is in the temperature control system of new energy car battery bag the exploratory stage at present.
Utility model content
In view of this, the purpose of this utility model is overcome the deficiencies in the prior art, there is provided a kind of electric powered motor
Battery temperature control, realize to electrokinetic cell heat and freeze temperature control, with extend battery system service life and
Keep course continuation mileage not deep fades.
To realize object above, the utility model adopts the following technical scheme that:
A kind of temperature control system for power cell of electric, including multiple electrokinetic cells, and with the electrokinetic cell
The battery management system of connection, in addition to water tank, water pump, heater, temperature controller, temperature sensor, heat dissipation of water tank fan
With multiple heat exchange substrates;
Wherein, it is oppositely arranged between the heat exchange substrate, is provided with and the heat exchange substrate between the adjacent heat exchange substrate
The fixed electrokinetic cell is bonded, the heat exchange substrate is provided with heat exchange runner, the heat exchange stream of multiple heat exchange substrates
Road forms series connection heat exchange runner or parallel heat exchanging runner, one end of the series connection heat exchange runner or the parallel connection by pipeline
One end of heat exchange runner is connected with the water pump by pipeline, the other end or the parallel heat exchanging of the series connection heat exchange runner
The other end of runner is connected with the water tank by pipeline;The water pump and the heater are respectively arranged in the water tank,
The water pump is connected with the battery management system, and the heater is connected with the temperature controller, the temperature controller
It is connected with the battery management system;The temperature sensor, it is arranged on the electrokinetic cell, with the battery management system
Connection;The heat dissipation of water tank fan, set in face of the water tank, be connected with the battery management system.
Further, the entrance and exit of the heat exchange runner is respectively positioned on the top of the heat exchange substrate.
Further, when the heat exchange runner composition series connection heat exchange runner of multiple heat exchange substrates, the heat exchange
The entrance of runner is arranged at the one side of the heat exchange substrate, and the outlet of the heat exchange runner is arranged at the another of the heat exchange substrate
Face.
Further, the heat exchange substrate has three, the respectively first heat exchange substrate, the second heat exchange substrate and the 3rd heat exchange
Substrate,
Wherein, the outlet of the heat exchange runner on the first heat exchange substrate is changed with the described second the described of heat exchange substrate
The entrance of hot flow path is relative, and the outlet of the heat exchange runner of the second heat exchange substrate is described with the described 3rd heat exchange substrate
The entrance of heat exchange runner is relative.
Further, the heat exchange runner in the heat exchange substrate is snakelike heat exchange runner.
Further, the heat exchange substrate is made of aluminum.
Further, the temperature sensor is thermistor temperature sensor.
Further, the heater is PTC-ceramic heater.
Further, fixed between the heat exchange substrate and the electrokinetic cell by heat conduction glue laminating.
Further, multiple fixing holes are additionally provided with the heat exchange substrate.
The utility model uses above technical scheme, at least possesses following beneficial effect:
The utility model provides a kind of temperature control system for power cell of electric, is bonded between adjacent heat exchange substrate solid
Determined power battery, compared with prior art sets heat exchange substrate on electrokinetic cell external world contact surface, the utility model power electric
Pond not only sets heat exchange substrate on extraneous contact surface, and heat exchange substrate is set also between electrokinetic cell, increases heat exchange area,
Heat exchange runner is provided with heat exchange substrate, the heat exchange runner in the substrate that exchanges heat is formed into series connection heat exchange runner or parallel connection by pipeline
Heat exchange runner, realization and external water tank heat exchange, by realizing the water temperature control in water tank to electrokinetic cell heating and refrigeration
Temperature control, so as to ensure the effectively start of battery system, operation, extend battery system service life and keep course continuation mileage
Not deep fades;By the way that heat exchange runner is designed into snakelike heat exchange tube road, it can both increase the heat exchange area of heat exchange substrate, again may be used
To reduce the resistance that runner is brought to water flowing in itself, it is easy to the water of heat exchange quickly to flow out;Heat exchange runner in the substrate that exchanges heat
When forming series connection heat exchange runner by pipeline, using three heat exchange substrates, the entrance and exit of heat exchange runner is respectively arranged at
The entrance phase of the heat exchange runner of the two sides of heat exchange substrate, the outlet of the first heat exchange runner to exchange heat on substrate and the second heat exchange substrate
Right, the outlet of the heat exchange runner of the second heat exchange substrate is relative with the entrance of the heat exchange runner of the 3rd heat exchange substrate so that three
The pipeline access path of individual heat exchange substrate is most short, effectively shortens the recuperated cycle cycle, heat is obtained in heat exchange runner fully
Exchange.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is work when a kind of temperature control system for power cell of electric of the utility model is series connection heat exchange runner
Principle schematic;
Fig. 2 is work when a kind of temperature control system for power cell of electric of the utility model is parallel heat exchanging runner
Principle schematic;
Fig. 3 is a kind of structural representation of the heat exchange substrate of temperature control system for power cell of electric of the utility model
Figure;
Fig. 4 is that a kind of structure of the series connection heat exchange runner of temperature control system for power cell of electric of the utility model is shown
It is intended to.
1- electrokinetic cells in figure;2- battery management systems;3- heat exchange substrates;4- water tanks;5- water pumps;6- heaters;7- temperature
Spend controller;8- temperature sensors;9- heat dissipation of water tank fans;901- heat exchange runners;902- fixing holes.
Embodiment
, below will be to technology of the present utility model to make the purpose of this utility model, technical scheme and advantage clearer
Scheme is described in detail.Obviously, described embodiment is only the utility model part of the embodiment, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not before creative work is made
Resulting all other embodiment is put, belongs to the scope that the utility model is protected.
Name Resolution:
Battery management system (Battery Management System, abridge BMS), cell management system of electric automobile
(BMS) it is the important tie that connects vehicle mounted dynamic battery and electric automobile.
As shown in Figures 1 to 4, the utility model provides a kind of temperature control system for power cell of electric, including multiple
Electrokinetic cell 1, and the battery management system 2 being connected with the electrokinetic cell 1, in addition to water tank 3, water pump 4, heater 5, temperature
Spend controller 6, temperature sensor 7, heat dissipation of water tank fan 8 and multiple heat exchange substrates 9;
Wherein, it is oppositely arranged between the heat exchange substrate 9, is provided with and the heat exchange base between the adjacent heat exchange substrate 9
Plate 9 is bonded the electrokinetic cell 1 of fixation, and the heat exchange substrate 9 is provided with heat exchange runner 901, the institute of multiple heat exchange substrates 9
State heat exchange runner 901 and series connection heat exchange runner or parallel heat exchanging runner, one end of the series connection heat exchange runner are formed by pipeline
Or one end of the parallel heat exchanging runner is connected with the water pump 4 by pipeline, it is described series connection heat exchange runner the other end or
The other end of parallel heat exchanging runner described in person is connected with the water tank 3 by pipeline;The water pump 4 and the heater 5 are distinguished
It is arranged in the water tank 3, the water pump 4 is connected with the battery management system 2, the heater 5 and the temperature control
Device 6 is connected, and the temperature controller 6 is connected with the battery management system 2;The temperature sensor 7, is arranged on the power
On battery 1, it is connected with the battery management system 2;The heat dissipation of water tank fan 8, set in face of the water tank 3, with the electricity
Pond management system 2 connects.
By such scheme, the utility model provides a kind of temperature control system for power cell of electric, adjacent
The fixed electrokinetic cell 1 is bonded between the heat exchange substrate 9, sets and changes on electrokinetic cell external world contact surface with prior art
Hot substrate is compared, and electrokinetic cell 1 described in the utility model not only with setting the heat exchange substrate 9 on extraneous contact surface, also exists
The heat exchange substrate 9 is set between the electrokinetic cell 1, and this set can increase heat exchange area, and the heat exchange substrate 9 is provided with
The heat exchange runner 901, the heat exchange runner 901 of the heat exchange substrate 9 is connected into composition series connection heat exchange runner by pipeline
Or parallel heat exchanging runner, realization exchange heat with the external water tank 3, by the water temperature control realization pair in the water tank 3
The temperature control that the electrokinetic cell 1 is heated and freezed, solves high temperature or low temperature to power battery of pure electric automobile performance
Influence, enable pure electric automobile summer is hot, winter severe cold area uses, so as to ensure the effectively start of battery system,
Operation, extend battery system service life and keep course continuation mileage not deep fades.
By such scheme, the utility model, which provides, is embodied application when high temperature and low temperature is given below.
When the battery management system 2 is by the temperature sensor 7, when detecting that the temperature of electrokinetic cell 1 is too high,
The battery management system 2 starts the water pump 4 and the heat dissipation of water tank fan 8, the water pump 4 by for the water of heat exchange in institute
State and circulated in water tank 3 and the heat exchange substrate 9, take away heat caused by the electrokinetic cell 1, while the heat dissipation of water tank fan
8 are used to carry out radiating and cooling to the water in the water tank 3.
When the battery management system 2 is by the temperature sensor 7, when detecting that the temperature of electrokinetic cell 1 is too low,
The battery management system 2 starts the water pump 4 and the heater 5, and the heater 5 heats the water in water tank, simultaneously
The water pump 4 will circulate for the water of heat exchange in the water tank 4 and the heat exchange substrate 9, realizes and adds to the electrokinetic cell 1
Heat heating.
As shown in figure 3, installation and the maintenance in later stage dismounting for the ease of each part of the utility model, the utility model
The entrance and exit of the heat exchange runner 901 is respectively positioned on the top of the heat exchange substrate 9.
In series connection heat exchange runner scheme or parallel heat exchanging runner scheme of the present utility model, the heat exchange runner 901
Entrance and exit may be provided on the side of the heat exchange substrate 9, can also be arranged on the two sides of the heat exchange substrate 9.When
When the utility model is using series connection heat exchange runner scheme, as shown in figure 3, in order to realize that the pipeline between the heat exchange substrate 9 connects
Shortest path is connect, obtains more excellent heat transfer effect, the utility model provides following scheme:When described in multiple heat exchange substrates 9
During the composition series connection heat exchange runner of heat exchange runner 901, the entrance of the heat exchange runner 901 is arranged at the one side of the heat exchange substrate 9,
The outlet of the heat exchange runner 901 is arranged at the another side of the heat exchange substrate 9.
For above-mentioned series connection heat exchange runner scheme, the pipeline access path most Short protocol being accomplished that between heat exchange substrate,
In order to realize that the heat in whole series connection heat exchange runner can obtain quick and abundant exchange, the utility model provides one kind and enters one
Walk improvement project:As shown in figure 4, the heat exchange substrate 9 has three, the respectively first heat exchange substrate, the second heat exchange substrate and the
Three heat exchange substrates,
Wherein, the outlet of the heat exchange runner 901 on the first heat exchange substrate and the institute of the described second heat exchange substrate
State that the entrance of heat exchange runner 901 is relative, outlet and the described 3rd heat exchange of the heat exchange runner 901 of the second heat exchange substrate
The entrance of the heat exchange runner 901 of substrate is relative.By the program, on the one hand so that the pipeline link road of three heat exchange substrates
Footpath is most short, on the other hand, using three heat exchange substrates, the water that will not cause to exchange heat holdup time in the heat exchange runner 901
It is oversize, so that heat is fully exchanged in heat exchange runner.
In the above-mentioned each scheme of the utility model, as shown in figure 3, the heat exchange runner 901 in the heat exchange substrate 9 is preferred
Snakelike heat exchange runner is designed as, by the way that heat exchange runner is designed into snakelike heat exchange tube road, can both increase the heat exchange of heat exchange substrate
Area, the resistance that runner is brought to water flowing in itself can be reduced again, be easy to the water of heat exchange quickly to flow out.
In the utility model, the heat exchange substrate 9 can use the aluminium with good heat-radiating effect to be made;The TEMP
Device 7 can use the thermistor temperature sensor generally used on the market;PTC-ceramic heater can be selected in the heater 5, should
Type PTC-ceramic heater has the advantages of thermal resistance is small, heat exchange efficiency is high, and its a big outstanding feature is in security performance, appoints
Surface " rubescent " phenomenon such as electric heating tubing heater will not be produced under what applicable cases, so as to cause the peace such as scald, fire
Full hidden danger, this is significant in terms of the security of electric automobile.
In the utility model, in order to realize more preferable heat-conducting effect between the heat exchange substrate 9 and the electrokinetic cell 1,
Fixed between the heat exchange substrate 9 and the electrokinetic cell 1 by heat conduction glue laminating.It is additionally provided with the heat exchange substrate 9 multiple
Fixing hole 902, so can by it is described heat exchange substrate 3 by bolt pass through the fixing hole 902 after by it is described heat exchange substrate 9 consolidate
It is scheduled on the electrokinetic cell 1, effect is more firmly fixed in acquirement.
In actual product, the thickness of heat exchange substrate 9 described in the utility model may be designed as 10mm, pass through two sheetmolding skills
Art, by temperature controlled crucial runner Technology design on the completely the same aluminium sheet of two panels 5mm shape, runner it is serpentine-like walk
Gesture, it can not only improve temperature control efficiency but also the resistance that runner is brought to liquid flowing can be reduced, two sheets are then used into pressure welding
Technology so that two panels circuit board is docking together completely, reaches the weld strength to combine together completely.
It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art can readily occur in change in the technical scope that the utility model discloses
Or replace, it should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be with the power
The protection domain that profit requires is defined.