CN102684395A

CN102684395A - Novel cooling technology for environment-friendly electric vehicle motor

Info

Publication number: CN102684395A
Application number: CN2011100661975A
Authority: CN
Inventors: 黄福章
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-03-18
Filing date: 2011-03-18
Publication date: 2012-09-19

Abstract

The invention relates to a novel cooling technology for an electric vehicle motor and belongs to the novel technology category of environment-friendly automobiles. The novel cooling technology is suitable for being used when various kinds of gasoline and diesel internal combustion engine automobiles in all sizes and different types are transformed into electric environmental-friendly automobiles and is also suitable for being used during the production of novel electric environment-friendly vehicles. The novel cooling technology has the main technical scheme that 1, the positions and the models of cooling water inlets and outlets are scientifically and reasonably planned; 2, a flow guide system of cooling water is scientifically arranged, and an ideal heat transfer effect is reached; and 3, the novel cooling technology is suitable for cooling liquid containing various ingredients. Because of the good cooling effect, the size and the weight of the motor of the electric vehicle are greatly reduced, and the power density of the motor is greatly improved. Therefore, the performance of the environment-friendly vehicle is greatly improved, the manufacture cost of the electric vehicle is also correspondingly reduced, and the generalization and the popularization of the environment-friendly vehicle are favorably realized.

Description

The novel cooling technology that the electric environment protecting vehicle and horse reach

Technical field

The invention belongs to environmentally friendly vehicle new technique field.Wataru and electric cars of the important parts - powered motors lighter and more efficient manufacturing methods.

Background technology

When the whole mankind is advocating environmental emission reduction and is becoming today of the basic principle of economic development, electric automobile popularize the great revolution that has just become the present vehicles! No matter electric automobile provides electric power with which kind of battery, all be unable to do without at least one well behaved motor (motor)! Also the someone attempted to adopt the water-cooled means to improve the power density of motor in the past, but based on various reasons, failed to reach satisfied effect always;

The present invention is a water-cooled motor structure outside sales made a very insightful scientific design arrangements to obtain the desired cooling effect! Efficient polyphase motor in FM trial, quality power ratio reached 1.38 kg / kW motor lighter than conventional half; For the promotion and popularization of environmentally friendly electric car really is a major contribution to the great cause!

Summary of the invention

Present technique is to load onto a specially designed water-cooling jacket shell for motor, the heat that is produced motor because of magnet eddy current and coil of wire internal resistance expeditiously rapidly with walk, thereby can dwindle the size of motor as far as possible, alleviate the weight of motor effectively.The design is the below, middle part that flatly is contained in the water inlet of cooling water the chuck shell, shunts two outlets about motor circumference commentaries on classics two or three is enclosed extremely when water gets into chuck to the left and right.Two outlets flatly are contained in the left and right end portions of nearly chuck respectively, with water inlet relatively motor shaft to about a side everywhere.That is motor shaft to left side water inlet, just the right water outlet, vice versa.The intake-outlet size sees the following form listed:

Power of motor (KW)	Water inlet size (MM)	Delivery port size (MM)
			15～30	25	2×20
30～60	40	2×30
			60～100	50	2×40
100～200	70	2×60

Relevant details can be referring to the relevant part of accompanying drawing.

Embodiment

Examples of implementation:

A multi-phase inverter motor 50Kw use of this technology cooling system design, which use less silicon and copper were 36% and 33%, sales of cast iron for the outer aluminum minus nearly 2/3 of the weight , with and without the cooling system design compared to the conventional motor, the motor weight reduction by more than half.With this 50Kw test is example, and motor has only about 68 kilograms, when moving in Cos φ=0.88, per hour produces about 6000Kcal heat, and when the temperature difference was 3 ℃ in the gateway, per hour cooling water flow was 2m ³, when being 5 ℃ as if the above-mentioned temperature difference, per hour as long as cooling water flow is 1.2m ³Just the sixth of the twelve Earthly Branches foot, the auto pump below 2.0 could be dealt with Zhuo Zhuo and have a surplus the sixth of the twelve Earthly Branches! Connect 8 to motor during test " 10m lift water pump operation a whole day, motor temperature maintains below 45 ℃, cooling effect is very good.

Description of drawings:

1. Fig. 1 is motor (motor) bottom view that adopts novel cooling technology of the present invention.Its cooling water from the motor outside the central location just below the level of sales or a partial installation of an angular position of the Di inlet into the water a split into left and right sides Pianxiang jacket; depends on the motor cooling rapidly across the middle heat slowly, temperature of the central portion is longer than the end portions to be high, so that low-temperature cooling water is first entered by the intermediate cooling effect can be greatly increased, and the motor is relatively uniform temperature of the whole so as to reduce the size and weight of the motor provides favorable conditions.

2. Fig. 2 is the part cutaway view that adopts motor (motor) the cooling jacket structure of novel cooling technology of the present invention.Cooling water health around motor between casing and chuck internal layer flows to reach the effect of cooling motor.On the chuck internal layer, be provided with flow guide bar and prevent that the cooling water short circuit from reducing cooling effect; Set spiral ridge on the chuck internal layer, it is long-pending to increase active cooling surface greatly, improves cooling effectiveness.Sealing ring pressure ring among Fig. 2 is pressed on sealing ring on the slit between casing and the chuck internal layer and prevents leakage of cooling water; The sealing circle can be used stupid rubber of fourth or polytetrafluoroethylene manufacturing.

Claims

1. the employed cooling water of water-cooling system of the present invention is to use the coloured or colourless solution that comprises pure water or have various concentration ratio antifreezing agents, anticorrisive agent or antifreezing agent preservative blends.

2. water-cooling system most critical person of the present invention is the structure of motor case, and it comprises:

2.1. motor case is the double-decker of jacketed inner chamber, but monoblock cast or divide two-layer turning to add seal to be assembled;

2.2. the structure of motor case chuck inner chamber is seen shown in the accompanying drawing.Lean on the spiral ridge and the water conservancy diversion ridge (flow guide bar) of promising increasing film-cooled heat on the chuck inner chamber bottom of motor center of circle direction; If the chuck inner chamber is not established aforesaid spiral ridge and water conservancy diversion ridge (flow guide bar), also belong to the scope of the invention;

2.3. by the middle position level under the motor case or the position installing water inlet of certain angle partially, water is shunted once getting into chuck to the left and right sides;

2.4. the opposite side of relative water inlet under the motor case both ends, two delivery ports of position installing of level or inclined to one side slightly certain angle.The water outlet at two ends can converge on motor case, is outwards drawn by a pipe, also can on motor case, not compile and directly gets into the cooling water gathering-device or directly get into the cooler of cooling water;

2.5. the material of motor case comprises various metal materials such as copper, aluminium, titanium, cast iron, various alloy, stainless steel.

3. cooling system of the present invention is provided with that temperature sensing is reported to the police and control device, when cooling water because of leaking or sending alarm signal early so that motor is protected during the water pump accident.