CN200974463Y - Electric automobile cooling system - Google Patents

Electric automobile cooling system Download PDF

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Publication number
CN200974463Y
CN200974463Y CN 200620015690 CN200620015690U CN200974463Y CN 200974463 Y CN200974463 Y CN 200974463Y CN 200620015690 CN200620015690 CN 200620015690 CN 200620015690 U CN200620015690 U CN 200620015690U CN 200974463 Y CN200974463 Y CN 200974463Y
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CN
China
Prior art keywords
cooling
water chamber
water
pump
electric automobile
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN 200620015690
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Chinese (zh)
Inventor
任雷轻
罗红斌
赵咸飞
尚小良
王新平
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BYD Co Ltd
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BYD Co Ltd
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Publication date
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Priority to CN 200620015690 priority Critical patent/CN200974463Y/en
Application granted granted Critical
Publication of CN200974463Y publication Critical patent/CN200974463Y/en
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Expired - Lifetime legal-status Critical Current

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Abstract

The utility model provides a cooling system of the electric vehicles, including a condenser, a water tank, a pump, and a cooling water jacket; the water tank, the pump and the cooling water jacket are orderly communicated. Firstly, the exchange of the condenser and the water tank can improve the cooling capability of the water tank; then the design of the cooling water jacket with a smaller resistance can lower the overall resistance of the system, or the serial communication can make the sum of the resistance of each branch get the closest; thus the overall resistance of the system is the smallest. The optimization of the structure and position of the cooling water jacket improves the cooling capability of the water tank, reduces the overall resistance of the system, upgrades the flow of each branch of the system and further increases the heat dissipation of the system.

Description

A kind of electric automobile cooling system
[technical field]
The present invention relates to a kind of electric automobile cooling system.
[background technology]
Along with the worsening shortages of the energy and the people attention to environmental protection, electronlmobil has received increasing concern as a kind of vehicle of clear energy sources that adopt, and many automobile manufacturers have been carried out a large amount of work aspect the designing and developing of electronlmobil.Along with the arrival in electronlmobil epoch, the cooling problem of electronlmobil has also been put on agenda, has only electric part is carried out the normal enforcement that good heat radiation could guarantee vehicle.In the existing design, a lot of parts of electronlmobil all comprise a large amount of heat elements, so these parts can give out heat at work, make the ambient temperature of these parts raise.For the harsh parts (as vehicle control device, electric machine controller, DC/DC conv etc.) that require of those last existences concerning operating ambient temperature, this is very disadvantageous.
Designer's independently cooling system that has been each component design is arranged, adopt compressor and refrigerant to realize cooling performance, yet can make complex structure and cost costliness like this.Also have the designer to propose to adopt the compact form design, each parts closely is arranged together mutually concentrates cooling, this has brought difficulty for again the structure design of vehicle, and each parts closely is arranged together mutually, the too small meeting of space length each other reduces cooling effectiveness to a certain extent.
[utility model content]
Technical problem to be solved in the utility model provides a kind of cooling electronlmobil parts but also economical and practical cooling system of not only being applicable to.
The technical scheme that the utility model solves key technical problem is: at first, improve the heat-sinking capability of water tank by the position that exchanges condenser and water tank; Secondly, come the total resistance of reduction system, perhaps make each branch road resistance sum reach the most approaching by parallel connection by the smaller cooling-water chamber of design resistance, this moment system in total resistance minimum, thereby the resistance that the reduction system is total improves the flow of each branch road, increases the heat dissipation capacity of system.
For solving the problems of the technologies described above, the utility model provides a kind of electric automobile cooling system, comprises condenser, water tank, pump, cooling-water chamber, and described water tank, pump and cooling-water chamber are connected successively, and described water tank is positioned at the front portion of described condenser, is positioned at the uptake place.
Described cooling-water chamber connects according to cooling-water chamber temperature order from low to high successively in the direction of flow of cooling water.
Described pump is electronic centrifugal pump, or electric diaphragm pump, is preferably electronic centrifugal pump.
As a kind of improvement of the present utility model, described cooling-water chamber is at least 1, and described cooling-water chamber is connected in series.
As another kind of improvement the of the present utility model, described cooling-water chamber is at least two, and described two cooling-water chamberes are connected in parallel.
As another kind of improvement the of the present utility model, described pump is at least two.Described parallel connection of pumps connects, and described each pump and the cooling-water chamber formation branch road that is linked in sequence.Have at least a branch road only to have a cooling-water chamber in the described branch road, there are at least two cooling-water chamberes in other branch road in the described branch road.
Adopt the beneficial effect of above scheme: the heat-sinking capability that has improved water tank by the position that exchanges condenser and water tank; By optimizing jacket structure for water, reduced systemic resistance simultaneously, thereby the elevator system flow increases the system radiating amount.
[description of drawings]
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Fig. 1 is the schematic flow sheet of the utility model embodiment one;
Fig. 2 is the schematic flow sheet of the utility model embodiment two;
Fig. 3 is the schematic flow sheet of the utility model embodiment three.
[specific embodiment]
The present invention has proposed the scheme of cooling off at electronlmobil specially in order to overcome the above problems:
In design plan of the present invention, at first with the location swap of condenser and water tank 1.Because when condenser and water tank 1 are worked simultaneously, the temperature of the temperature in the condenser in the water tank 1, and condenser is in the uptake position, air passes through water tank 1 again after the condenser heating.If adopt such structure, cooling circulating water does not have the effect of cooling, can cause the rising of water tank 1 temperature on the contrary, and then again the cooling of other heat element is caused influence improperly.The present invention by temperature requirement from low to high allow successively air earlier through the lower water tank 1 of excess temperature again through the high condenser of excess temperature, like this, 1 pair of condenser of water tank plays certain cooling effect, its heat dispersion also can improve greatly simultaneously.Because condenser does not belong to this circulation, so do not illustrate in the drawings.
Secondly, come the total resistance of reduction system, perhaps make each branch road resistance sum reach the most approaching by parallel connection by the smaller cooling-water chamber of design resistance, this moment system in total resistance minimum, thereby the resistance that the reduction system is total improves the flow of each branch road, increases the heat dissipation capacity of system.With needing heat-dissipation electric elements cooling-water chamber in the electronlmobil, be provided with different connection modes according to different situation demands successively by temperature being linked in sequence from low to high.These need the heat-dissipation electric elements can be entire car controller, electric machine controller, DC/DC controller, electrical motor, air-conditioner controller etc.In this system, each parts connect by flexible pipe.
The calculating of water jacket resistance is to be connected compression indicator by the water inlet at water jacket with water outlet to measure, and two difference of pressures are the resistance of water jacket.The little cooling-water chamber of resistance can be finished by design, that is: Coolant gallery reduces right-angled bend as far as possible according to the flow regime design in water route during design, and the water channel wall is smooth, because coarse surface can hinder flowing of water, thereby increases systemic resistance.Each cooling-water chamber in parallel is in order to make the resistance in each branch road approaching, thereby makes the flow in each branch road suitable, also be because only each branch road resistance more near the time, resistance total in the cooling system is more little, the flow of system is big more.Because the pressure-flow curve of water pump is the curve of monotone decreasing, be inversely proportional to so the flow in the system is a resistance with system, promptly in system total resistance more hour, flow can be big more.The purpose that reduces resistance is to increase flow, thereby increases the heat dissipation capacity of water tank, increases the system cools effect.
Also in conjunction with the accompanying drawings the utility model is described in further detail below by the specific embodiment.
Embodiment one:
As shown in Figure 1, in the present embodiment, the flow direction of cooling circulating water is:
Pump 2-cooling-water chamber A-cooling-water chamber B-cooling-water chamber C-cooling-water chamber D-cooling-water chamber E-water tank 1-pump 2;
The quantity of cooling-water chamber does not limit herein, and the needs that can look actual conditions increase or reduce.But the temperature of each cooling-water chamber must satisfy following requirement: cooling-water chamber A<cooling-water chamber B<cooling-water chamber C<cooling-water chamber D<cooling-water chamber E.
Pump 2 herein refers to the pump of driven by motor, can be electronic centrifugal pump, also can be electric diaphragm pump.Be preferably electronic centrifugal pump.
The cooling-water chamber of herein mentioning refers to the parts that cooling liquid passes through that are used for by the material of good heat-transfer (as aluminum alloy) manufacturing, according to the different water jackets that are designed to different patterns of heat dissipation capacity of heat dissipation element requirement.
Water tank 1 herein refers to Ji Jiashui, excessive airway dysfunction in the radiator of one, as the parallel flow type aluminium radiator.
The connection mode of this cooling system can be not limited to Fig. 1 and connect, and each element among Fig. 1 is connected in series, and also can adopt mode in parallel, as Fig. 2, shown in Figure 3.
Embodiment two:
As shown in Figure 2, adopt the mode that is connected in parallel in the present embodiment, this moment, cooling circulating water had the two-way circulation:
The flow direction of cooling circulating water is in first circulation path:
Pump 2-cooling-water chamber A-cooling-water chamber B-water tank 1-pump 2;
The flow direction of cooling circulating water is in second circulation path:
Pump 2-cooling-water chamber C-cooling-water chamber D-water tank 1-pump 2;
The temperature of each cooling-water chamber must satisfy following requirement: cooling-water chamber A<cooling-water chamber B, cooling-water chamber C<cooling-water chamber D.
Cooling-water chamber A among the figure and the water among the cooling-water chamber B are because come out from water tank 1, so the water inlet temperature of two water jackets is identical, be minimum two of water jacket water inlet temperature with respect to system promptly, the radiating effect of cooling-water chamber A and cooling-water chamber C can improve like this.Among this figure arrange according to following principle in the position of four water jackets: in the system the minimum cooling-water chamber of temperature requirement is arranged in close water tank place in the system, as shown in Figure 2, the temperature requirement of cooling-water chamber A is lower than the temperature requirement of cooling-water chamber B; The temperature requirement of cooling-water chamber C is lower than the temperature requirement of cooling-water chamber D.When the resistance sum of the resistance sum of cooling-water chamber A and cooling-water chamber B and cooling-water chamber C and cooling-water chamber D more near the time, the total drag in the cooling system is more little, that is: the flow in the system is big more.
Embodiment three:
As shown in Figure 3, also adopt the mode that is connected in parallel in the present embodiment, this moment, cooling circulating water had the two-way circulation:
The flow direction of cooling circulating water is in first circulation path:
Pump 2-cooling-water chamber A-water tank 1-pump 2;
The flow direction of cooling circulating water is in second circulation path:
Pump 3-cooling-water chamber B-cooling-water chamber C-cooling-water chamber D-water tank 1-pump 3;
The temperature of each cooling-water chamber must meet the demands: cooling-water chamber B<cooling-water chamber C<cooling-water chamber D.
In the present embodiment, cooling-water chamber 1 is to the strictest element of temperature requirement in the system, so after cooling water expansion tank comes out from water tank, divide two-way to enter two water pumps, respectively cooling-water chamber A and cooling-water chamber B, C, D are cooled off then, when the resistance of cooling-water chamber A during less than cooling-water chamber B, C, D resistance sum, the flow among the cooling-water chamber A will be greater than the flow among cooling-water chamber B, C, the D; In contrast, when the resistance of cooling-water chamber A during greater than cooling-water chamber B, C, D resistance sum, then the flow among the cooling-water chamber A can be less than the flow among cooling-water chamber B, C, the D.We know: flow is big more, and heat-sinking capability is good more, so in order to increase the heat dissipation capacity of cooling-water chamber, the present invention will connect with a water pump 2 separately the cooling-water chamber A of temperature requirement strictness, system just can well move like this.As being in climbing when elec. vehicle or during than heavy duty, at this moment the electric machine controller cal val will significantly increase,, will influence the performance of itself if untimely to the electric machine controller cooling.If adopt present embodiment this moment, just can circulate with one the tunnel separately it is cooled off, so just can be so that system can well move.Other temperature is had the element of strict demand if certainly Vehicular system also exists, we also can increase by one tunnel circulation again, separately it are cooled off.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field; under the prerequisite that does not break away from the utility model design; can also make some simple deduction or replace, all should be considered as belonging to the scope of patent protection that the utility model is determined by claims of being submitted to.

Claims (9)

1, a kind of electric automobile cooling system comprises condenser, water tank, pump, cooling-water chamber, and described water tank, pump and cooling-water chamber are connected successively, it is characterized in that: described water tank is positioned at the front portion of described condenser, is positioned at the uptake place.
2, electric automobile cooling system according to claim 1 is characterized in that: described cooling-water chamber connects according to cooling-water chamber temperature order from low to high successively in the direction of flow of cooling water.
3, electric automobile cooling system according to claim 1, described pump are electronic centrifugal pump, or electric diaphragm pump.
4, electric automobile cooling system according to claim 3, described pump is preferably electronic centrifugal pump.
5, according to the described electric automobile cooling system of claim 1-4, it is characterized in that: described cooling-water chamber is at least 1, and described cooling-water chamber is connected in series.
6, according to the described electric automobile cooling system of claim 1-4, it is characterized in that: described cooling-water chamber is at least two, and described two cooling-water chamberes are connected in parallel.
7, according to the described electric automobile cooling system of claim 1-4, it is characterized in that: described pump is at least two.
8, electric automobile cooling system according to claim 7 is characterized in that: described parallel connection of pumps connects, and described each pump and the cooling-water chamber formation branch road that is linked in sequence.
9, electric automobile cooling system according to claim 8 is characterized in that: have at least a branch road only to have a cooling-water chamber in the described branch road, there are at least two cooling-water chamberes in other branch road in the described branch road.
CN 200620015690 2006-11-06 2006-11-06 Electric automobile cooling system Expired - Lifetime CN200974463Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200620015690 CN200974463Y (en) 2006-11-06 2006-11-06 Electric automobile cooling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200620015690 CN200974463Y (en) 2006-11-06 2006-11-06 Electric automobile cooling system

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102470758A (en) * 2009-11-30 2012-05-23 株式会社日立制作所 Cooling system for electric vehicle
CN102874099A (en) * 2011-07-12 2013-01-16 上海通用汽车有限公司 Cooling system and electric vehicle
CN104309469B (en) * 2014-05-30 2017-03-01 潍柴动力股份有限公司 A kind of low-temperature cooling system, method and device
CN111845925A (en) * 2019-04-25 2020-10-30 山东奔跑智能科技有限公司 Direction machine cooling system for engineering machinery

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102470758A (en) * 2009-11-30 2012-05-23 株式会社日立制作所 Cooling system for electric vehicle
CN102470758B (en) * 2009-11-30 2015-07-01 株式会社日立制作所 Cooling system for electric vehicle
CN102874099A (en) * 2011-07-12 2013-01-16 上海通用汽车有限公司 Cooling system and electric vehicle
CN102874099B (en) * 2011-07-12 2015-05-20 上海通用汽车有限公司 Cooling system and electric vehicle
CN104309469B (en) * 2014-05-30 2017-03-01 潍柴动力股份有限公司 A kind of low-temperature cooling system, method and device
CN111845925A (en) * 2019-04-25 2020-10-30 山东奔跑智能科技有限公司 Direction machine cooling system for engineering machinery

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C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20071114

EXPY Termination of patent right or utility model