阅读说明：本技术 一种缓冲分配盒、双电机冷却系统及电动汽车 (Buffering distribution box, double-motor cooling system and electric automobile ) 是由 王永 刘林 彭区顺 于 2019-11-08 设计创作，主要内容包括：本发明公开了一种缓冲分配盒、双电机冷却系统及电动汽车,涉及车辆电机冷却技术领域。所述缓冲分配盒包括一盒体及三个进出水口,所述三个进出水口均与所述盒体的内部连通；所述双电机冷却系统包括散热水箱及缓冲分配盒,所述散热水箱、缓冲分配盒及两个所述电机之间通过管路串联形成一冷却回路。缓冲分配盒通过设置盒体对冷却水进行缓冲,可以确保从散热水箱流入两个电机的水量保持均等,应用于双电机冷却系统中时,可以确保两个电机获得一致的冷却效果；缓冲分配盒的制造成本,相比复杂的三通阀,可靠性高,维护成本低。(The invention discloses a buffer distribution box, a double-motor cooling system and an electric automobile, and relates to the technical field of vehicle motor cooling. The buffer distribution box comprises a box body and three water inlets and three water outlets, and the three water inlets and the three water outlets are all communicated with the interior of the box body; the double-motor cooling system comprises a heat dissipation water tank and a buffering distribution box, wherein the heat dissipation water tank, the buffering distribution box and the two motors are connected in series through pipelines to form a cooling loop. The buffering distribution box buffers cooling water through the box body, so that the water quantity flowing into the two motors from the radiating water tank can be kept equal, and when the buffering distribution box is applied to a double-motor cooling system, the two motors can be ensured to obtain consistent cooling effect; compared with a complex three-way valve, the manufacturing cost of the buffer distribution box is high in reliability and low in maintenance cost.)

1. A buffer dispensing cartridge, comprising: the water inlet and outlet device comprises a box body and three water inlet and outlet ports, wherein the three water inlet and outlet ports are communicated with the interior of the box body;

one of the three water inlets and outlets is set as a water inlet, and the other two water inlets and outlets are set as water outlets;

or two of the three water inlets and outlets are set as water inlets, and the other one is set as a water outlet.

2. The buffer distribution box of claim 1, wherein: the inside of box body is equipped with the vortex structure.

3. The buffer allocation box of claim 2, wherein: the flow disturbing structure comprises a plurality of flow disturbing columns or/and flow disturbing plates distributed in the box body.

4. The utility model provides a bi-motor cooling system for cool off the heat dissipation to two motors, its characterized in that: comprising a radiator tank and a first buffer distribution box according to any one of claims 1 to 3;

the heat dissipation water tank, the first buffer distribution box and the two motors are connected in series through a pipeline to form a cooling loop; the cooling loop is driven by a water pump;

the first buffer distribution box is connected between the heat radiation water tank and the two motors and used for dividing water into two parts and distributing the two parts to the two motors.

5. The dual-motor cooling system of claim 4, wherein: the buffer distribution box of any one of claims 1 to 3, further comprising a second buffer distribution box for collecting water from the two motors to the heat dissipation water tank.

6. The dual-motor cooling system of claim 4 or 5, wherein: the double-motor cooling system further comprises a four-in-one controller connected to the cooling loop, and the four-in-one controller is connected between the heat dissipation water tank and the first buffer distribution box through a pipeline.

7. The dual-motor cooling system of claim 6, wherein: the double-motor cooling system also comprises an expansion water tank, an emptying pipeline and a water return pipeline;

one end of the water return pipeline is connected to a water outlet of the expansion water tank, and the other end of the water return pipeline is connected to the cooling loop;

the emptying pipelines are three, one ends of the three emptying pipelines are connected to the water inlet of the expansion water tank, and the other ends of the three emptying pipelines are connected to the pipeline at the water outlet end of the four-in-one controller and the pipelines at the water outlet ends of the two motors respectively.

8. The dual motor cooling system of claim 7, wherein: and a tee joint is arranged at the joint between the emptying pipeline and the cooling loop.

9. The dual-motor cooling system of claim 6, wherein: the double-motor cooling system also comprises a heat radiation fan and a controller, wherein the air outlet surface of the heat radiation fan is over against the heat radiation water tank;

temperature sensors are arranged in the motor and the four-in-one controller and used for transmitting measured temperature signals to the controller;

the controller is electrically connected with the water pump and the heat dissipation fan and used for controlling the operation conditions of the heat dissipation fan and the water pump according to the temperature signals measured by the temperature sensor.

10. An electric vehicle characterized by comprising the two-motor cooling system according to any one of claims 4 to 9.

Technical Field

The invention relates to the technical field of vehicle motor cooling, in particular to a buffer distribution box, a double-motor cooling system and an electric automobile.

Background

At present, electric automobiles, particularly medium and heavy electric commercial vehicles, are mainly driven in a centralized mode, the centralized power generally has the characteristic of high power, a high-power electric driving system is large in size/weight, and the centralized power needs to occupy a large space in a frame, so that people invent the electric automobiles driven by a plurality of power sources. In this case, the power, volume and weight of each power source are relatively small. However, the multiple power sources present a new problem, namely that each power source faces the problem of heat dissipation, and therefore the number of heat dissipation elements required is increased, and therefore, how to cool the multiple power sources is a difficult problem in the industry.

In the existing scheme for cooling a plurality of power sources, some motors and controllers are connected through a three-way pipe, and in the actual use process of the scheme, because the lengths, the trends and the like of pipelines of each group of motors/controllers connected in series are different, the flow resistance is different, and the heat dissipation effects obtained by the two motors/controllers are different, so that the performance of the whole vehicle is influenced.

In addition, the existing cooling scheme also has the problems that the temperature of the motor coolant at the front end and the tail end of the pipeline is different, the temperature difference is large, the cooling effect of the two motors is different, the cooperativity of the working performance of the two motors is influenced, and finally the adverse effect is caused on the performance of the whole vehicle.

In view of the above, a new technical solution is urgently needed to solve the above technical problems.

Disclosure of Invention

The invention aims to solve the problem of inconsistent cooling effects of two motors in the prior art, and provides a buffering distribution box, a dual-motor cooling system and an electric automobile.

In order to achieve the purpose, the invention adopts the following technical scheme:

a buffering distribution box comprises a box body and three water inlets and three water outlets, wherein the three water inlets and the three water outlets are communicated with the inside of the box body;

one of the three water inlets and outlets is set as a water inlet, and the other two water inlets and outlets are set as water outlets;

or two of the three water inlets and outlets are set as water inlets, and the other one is set as a water outlet.

As a further improvement, a turbulent flow structure is arranged in the box body.

As a further improvement, the flow disturbing structure comprises a plurality of flow disturbing columns or/and flow disturbing plates distributed in the box body.

The invention also provides a double-motor cooling system which is used for cooling and radiating two motors and comprises a radiating water tank and the first buffering distribution box;

the heat dissipation water tank, the first buffer distribution box and the two motors are connected in series through a pipeline to form a cooling loop; the cooling loop is driven by a water pump;

the first buffer distribution box is connected between the heat radiation water tank and the two motors and used for dividing water into two parts and distributing the two parts to the two motors.

As a further improvement, the dual-motor cooling system further comprises a second buffering distribution box as described above, and the second buffering distribution box is used for converging water flowing out of the two motors to the heat dissipation water tank.

As a further improvement, the dual-motor cooling system further comprises a four-in-one controller connected in the cooling circuit, and the four-in-one controller is connected between the heat dissipation water tank and the first buffer distribution box through a pipeline.

As a further improvement, the dual-motor cooling system further comprises an expansion water tank, an emptying pipeline and a water return pipeline;

one end of the water return pipeline is connected to a water outlet of the expansion water tank, and the other end of the water return pipeline is connected to the cooling loop;

the emptying pipelines are three, one ends of the three emptying pipelines are connected to the water inlet of the expansion water tank, and the other ends of the three emptying pipelines are connected to the pipeline at the water outlet end of the four-in-one controller and the pipelines at the water outlet ends of the two motors respectively.

As a further improvement, a tee joint is arranged at the joint between the emptying pipeline and the cooling loop.

As a further improvement, the dual-motor cooling system further comprises a heat radiation fan and a controller, wherein the air outlet surface of the heat radiation fan is opposite to the heat radiation water tank;

temperature sensors are arranged in the motor and the four-in-one controller and used for transmitting measured temperature signals to the controller;

the controller is electrically connected with the water pump and the heat dissipation fan and used for controlling the operation conditions of the heat dissipation fan and the water pump according to the temperature signal.

The invention also provides an electric automobile which comprises the double-motor cooling system.

Compared with the prior art, the invention has the following beneficial effects:

the buffering distribution box provided by the invention buffers cooling water through the box body, so that the water quantity flowing into the two motors from the radiating water tank can be kept equal, and when the buffering distribution box is applied to a double-motor cooling system, the two motors can be ensured to obtain consistent cooling effect; the inlet and outlet directions of the buffer distribution box can be designed according to requirements, the problems that the trend of a pipeline brought by a three-way valve in the prior art can be restrained, interference is easily formed with peripheral pipelines, and field arrangement design is not facilitated can be solved, two outlet flows can be basically consistent through relatively low manufacturing cost, and compared with a complex three-way valve, the buffer distribution box is high in reliability and low in maintenance cost.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic diagram illustrating the structure of a dual motor cooling system according to a preferred embodiment of the present invention;

FIG. 2 illustrates a perspective view of a buffer distribution box of the dual motor cooling system of the present invention;

FIG. 3 shows a top view of a buffer distribution box of the dual motor cooling system of the present invention;

FIG. 4 illustrates an assembly view of the heat sink water tank and the heat sink fan of the dual motor cooling system of the present invention;

fig. 5 to 9 show schematic structural views of several spoiler structures in the buffer distribution box of the present invention.

Description of the main element symbols:

1-a motor; 2-a heat dissipation water tank; 301-first buffer allocation box; 302-a second buffer allocation box; 31-a cartridge; 311-turbulence column; 312-a spoiler; a. b, c-water inlet and outlet; 4-a water pump; 5-a four-in-one controller; 6-expansion water tank; 7-evacuation of the line; 8-a water return pipeline; 9-a three-way joint; 10-a heat dissipation fan; 11-a control module; 100-cooling circuit.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.