CN216764228U

CN216764228U - Heat dissipation cooling system and electric forklift

Info

Publication number: CN216764228U
Application number: CN202220339123.8U
Authority: CN
Inventors: 乔任泽; 张�杰; 刘勇
Original assignee: Sany Robot Technology Co Ltd
Current assignee: Sany Robot Technology Co Ltd
Priority date: 2022-02-18
Filing date: 2022-02-18
Publication date: 2022-06-17
Anticipated expiration: 2032-02-18

Abstract

The utility model provides a heat dissipation cooling system and an electric forklift, and relates to the technical field of heat dissipation cooling equipment. The heat dissipation cooling system includes: the heat sink comprises a first radiator, a first heat dissipation pipeline, a second radiator and a second heat dissipation pipeline. One end of the first heat dissipation pipeline is connected with an outlet of the first radiator, and the other end of the first heat dissipation pipeline is connected with an inlet of the first radiator to form a first heat dissipation loop; the first heat dissipation pipeline passes through the controller, the oil tank and the motor; one end of the second heat dissipation pipeline is connected with an outlet of the second radiator, and the other end of the second heat dissipation pipeline is connected with an inlet of the second radiator to form a second heat dissipation loop; the second heat dissipation conduit passes through the battery. The utility model can solve the problems of poor heat dissipation effect of the battery, influence on the service performance of the battery and short service life of the battery in the prior art, can independently dissipate the heat of the battery, has high heat dissipation speed, obviously enhances the heat dissipation effect of the battery, ensures the service performance of the battery and prolongs the service life of the battery.

Description

Heat dissipation cooling system and electric forklift

Technical Field

The utility model relates to the technical field of heat dissipation cooling equipment, in particular to a heat dissipation cooling system and an electric forklift.

Background

The forklift is used as a common industrial transport vehicle in a factory, and the electric forklift in the mainstream of the existing market is still a low-voltage vehicle, and is not matched with a heat dissipation system due to low heat. Compare current fork truck platform, work efficiency is low, charges slowly, seriously influences production. Therefore, the high-voltage lithium battery electric forklift is rapidly developed due to high working efficiency. In order to accelerate the charging speed of the high-voltage lithium battery electric forklift and shorten the charging time, the heat dissipation of the battery of the high-voltage lithium battery electric forklift is important. However, the existing heat dissipation system of the high-voltage lithium battery electric forklift jointly dissipates heat of the battery, the motor and various circuit components, and has a large influence on the performance of the battery due to heat dissipation, the existing heat dissipation system is low in heat dissipation speed, the heat productivity of other parts in electric equipment in the whole automobile is far higher than that of the battery, and the subsequent heat dissipation effect of the same circulation heat dissipation pipeline of the whole automobile on the battery is poor, so that the use performance of the battery is influenced, and the service life of the battery is shortened.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem to be solved by the utility model is to overcome the defects of poor battery heat dissipation effect, influence on battery service performance and short battery life of the electric forklift in the prior art, so that the utility model provides the heat dissipation cooling system and the electric forklift.

In order to solve the above problems, an aspect of the present invention provides a heat dissipation cooling system, including: the heat sink comprises a first radiator, a first heat dissipation pipeline, a second radiator and a second heat dissipation pipeline. One end of the first heat dissipation pipeline is connected with an outlet of the first heat radiator, and the other end of the first heat dissipation pipeline is connected with an inlet of the first heat radiator to form a first heat dissipation loop; the first heat dissipation pipeline passes through the controller, the oil tank and the motor; one end of the second heat dissipation pipeline is connected with an outlet of the second radiator, and the other end of the second heat dissipation pipeline is connected with an inlet of the second radiator to form a second heat dissipation loop; the second heat dissipation pipe passes through the battery.

Optionally, the first heat dissipation pipeline is connected with a first water pump, and the second heat dissipation pipeline is connected with a second water pump.

Optionally, the first radiator is connected with a first expansion kettle, and the second radiator is connected with a second expansion kettle.

Optionally, the first radiator and the second radiator are arranged in parallel; and a heat radiation fan is arranged on one side of the first heat radiator and one side of the second heat radiator, and an air outlet of the heat radiation fan faces away from the first heat radiator and the second heat radiator.

Optionally, the motor comprises a first motor and a second motor, and the controller comprises a first controller for controlling the first motor and a second controller for controlling the second motor.

Optionally, the first motor and the first controller are integrally arranged, and the second motor and the second controller are separately arranged; along the flowing direction of the medium, the first heat dissipation pipeline sequentially passes through the first controller, the first motor, the second controller, the oil tank and the second motor.

Optionally, the first heat dissipation conduit also passes through the sensor assembly.

Optionally, the first heat dissipation pipeline sequentially passes through the controller, the oil tank, the sensor assembly and the motor along the flowing direction of the medium.

Optionally, the first and second heat dissipation pipes comprise rubber hoses.

Another aspect of the present invention provides an electric forklift including the heat dissipation and cooling system of any one of the above technical solutions.

The utility model has the following advantages:

1. by utilizing the technical scheme of the utility model, the first radiator can radiate the controller, the oil tank and the motor through the first radiating pipeline, the second radiator can independently radiate the battery through the second radiating pipeline, the radiating speed is high, the radiating effect of the battery is obviously enhanced, the service performance of the battery is ensured, and the service life of the battery is prolonged.

2. First expansion kettle is connected to first radiator, connects second expansion kettle on the second radiator, can be when whole car assembly, to the pre-charge coolant liquid in the heat dissipation pipeline, and can in time supply the coolant liquid when lacking the coolant liquid in the heat dissipation pipeline.

3. The heat dissipation fan is arranged on one side of the first radiator and one side of the second radiator, so that the radiators can be radiated, the heat exchange efficiency of the radiators is improved, and the heat dissipation speed of the whole heat dissipation cooling system is improved.

4. The electric forklift with the heat dissipation cooling system has the advantages that the battery and other heating elements are separated, the independent heat dissipation mode is adopted, the heat dissipation effect of the battery is greatly enhanced, the service performance and the service life of the battery are ensured, the working efficiency of the electric forklift is high, the charging is fast, and the charging time is greatly shortened.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic diagram illustrating the structure of a heat dissipation cooling system provided by the present invention;

fig. 2 is a schematic view illustrating an installation structure of the heat dissipation cooling system provided by the present invention.

Description of reference numerals:

11. a first heat sink; 12. a first heat dissipation duct; 13. a first water pump; 14. a first controller; 15. a second controller; 16. an oil tank; 17. a sensor assembly; 18. a first motor; 19. a second motor; 110. a first expansion tank; 21. a second heat sink; 22. a second heat dissipation duct; 23. a second water pump; 24. a battery; 25. a second expansion tank; 3. a heat dissipation fan.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. 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 addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

For convenience of describing the technical scheme of the present invention, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments, but the embodiments should not be construed as limiting the present invention.

Example 1

A heat dissipation cooling system, referring to fig. 1 in combination with fig. 2, comprising: a first radiator 11, a first heat dissipation duct 12, a second radiator 21, and a second heat dissipation duct 22. One end of the first heat dissipation pipeline 12 is connected with an outlet of the first heat radiator 11, and the other end of the first heat dissipation pipeline is connected with an inlet of the first heat radiator 11 to form a first heat dissipation loop; the first heat dissipation pipeline 12 passes through a controller, an oil tank 16 and a motor; one end of the second heat dissipation pipeline 22 is connected with an outlet of the second radiator 21, and the other end of the second heat dissipation pipeline is connected with an inlet of the second radiator 21 to form a second heat dissipation loop; the second heat dissipation conduit 22 passes through the battery 24.

By utilizing the technical scheme of the utility model, the first radiator 11 can radiate the controller, the oil tank 16 and the motor through the first radiating pipeline 12, the second radiator 21 can independently radiate the battery 24 through the second radiating pipeline 22, the radiating speed is high, the radiating effect of the battery 24 is obviously enhanced, the service performance of the battery 24 is ensured, and the service life of the battery 24 is prolonged.

Specifically, referring to fig. 1, a first water pump 13 is connected to the first heat dissipation pipe 12, and a second water pump 23 is connected to the second heat dissipation pipe 22. The first water pump 13 is configured to circulate the coolant in the first heat radiation pipe 12 between the outlet of the first heat radiator 11, the first heat radiation pipe 12, and the inlet of the first heat radiator 11. The installation position of the first water pump 13 on the first heat dissipation pipe 12 is not limited. As a preferred embodiment, the first water pump 13 is disposed near the first radiator 11. The second water pump 23 is also provided and functions on the second heat dissipation pipe 22, and will not be described in detail here.

Specifically, the first radiator 11 is connected with a first expansion kettle 110, and the second radiator 21 is connected with a second expansion kettle 25. The first expansion tank 110 is used to pre-fill the first heat dissipation pipe 12 with the coolant at the time of assembly, and to replenish the coolant in time when the coolant is absent in the first heat dissipation pipe 12. The second expansion tank 25 has the same function and will not be described in detail here.

In order to improve the heat dissipation efficiency of the heat dissipation cooling system, as a preferred embodiment, referring to fig. 1, a first heat sink 11 and a second heat sink 21 are arranged in parallel. The heat dissipation fan 3 is disposed on one side of the first heat sink 11 and the second heat sink 21, and an air outlet of the heat dissipation fan 3 faces away from the first heat sink 11 and the second heat sink 21. The radiator fan 3 blows the heat of the first radiator 11 and the second radiator 21 to the surrounding environment, and promotes the heat exchange efficiency of the first radiator 11 and the second radiator 21. Of course, the first heat dissipation fan and the second heat dissipation fan may be disposed on one side of the first heat sink 11 and the second heat sink 21, respectively. Thus, the heat dissipation fan 3 can help the heat dissipation of the heat sink, and improve the heat exchange efficiency of the heat sink, thereby improving the overall heat dissipation effect of the heat dissipation cooling system.

Generally, as a construction machine, there are two motors, one for driving work and one for driving walking, and each motor is connected with a corresponding controller, and the two motors and the two controllers need to dissipate heat. Specifically, in the present embodiment, the motors include a first motor 18 and a second motor 19, and the controller includes a first controller 14 for controlling the first motor 18 and a second controller 15 for controlling the second motor 19. Of course, the motor and the controller can be integrated into a whole. Because the heat dissipation effect has a more obvious influence on the performance of the controller, the controller is preferentially cooled, and when the first motor 18 and the first controller 14 are separately arranged and the second motor 19 and the second controller 15 are separately arranged, in a preferred embodiment, referring to fig. 1, the heat dissipation sequence sequentially includes: the device comprises a first controller 14, a second controller 15, a fuel tank 16, a first motor 18 and a second motor 19. Wherein the priority of heat dissipation between the first controller 14 and the second controller 15, and between the first motor 18 and the second motor 19 is determined as the case may be. When the first controller 14 and the first motor 18 are integrated, that is, the two-in-one motor controller and the second controller 15 and the second motor 19 are separately arranged, in a preferred embodiment, the heat dissipation sequence sequentially includes: a first controller 14, a first motor 18, a second controller 15, an oil tank 16 and a second motor 19. In a specific implementation, the first motor 18 is a driving motor, and the second motor 19 is an oil pump motor.

Also, in order to improve the usability of the entire vehicle, the heat dissipation of the heating elements of the entire vehicle is performed as much as possible, and specifically, the first heat dissipation pipeline 12 also passes through the sensor assembly 17.

The order in which the first heat dissipation pipe 12 from the outlet of the first heat sink 11 to the inlet of the first heat sink 11 passes through the heat generating elements is not limited. Since heat generation has a large influence on the usability of the controller, as one of preferred embodiments, the controller is disposed upstream in the medium flow direction, so that the closer to the outlet of the first radiator 11, the lower the temperature of the coolant, the better the heat radiation effect on the controller. Specifically, referring to fig. 1, in the flowing direction of the medium, the first heat dissipation pipe 12 passes through the first water pump 13, the first controller 14, the second controller 15, the oil tank 16, the sensor assembly 17, the first motor 18, and the second motor 19 in sequence. The coolant in the first heat dissipation pipeline 12 takes away a part of heat through a heating element, so as to dissipate heat of the heating element, the closer to the inlet of the first radiator 11, the higher the temperature of the coolant is, the higher the temperature of the coolant enters the first radiator 11, the heat exchange is performed on the warmed coolant, the coolant with lower temperature is obtained, and the coolant is pumped by the first water pump 13 to dissipate heat of the heating elements again, and the circulation is repeated. Similarly, the coolant in the second heat dissipation pipeline 22 passes through the battery 24 under the action of the second water pump 23 to dissipate heat from the battery 24, after the coolant takes away most of the heat of the battery 24, the temperature of the battery 24 is reduced, the usability of the battery 24 is ensured, correspondingly, the temperature of the coolant is increased, the coolant returns to the second heat sink 21 through the inlet of the second heat sink 21 to exchange heat, and after the coolant is changed into the coolant with lower temperature again, the coolant passes through the battery 24 again to dissipate heat from the battery 24, and the operation is repeated in this way. The battery 24 is separately cooled by the second radiator 21 and the second cooling pipe 22, so that the battery 24 is effectively, quickly and well cooled.

Specifically, as a preferred embodiment, the first heat dissipation pipe 12 and the second heat dissipation pipe 22 are made of a material with high heat exchange efficiency, such as a rubber hose.

Example 2

An electric forklift includes the heat dissipation cooling system of embodiment 1.

Electric fork-lift with this heat dissipation cooling system because battery 24 and other heating element part adopt radiating mode alone, and battery 24's radiating effect strengthens greatly, has guaranteed battery 24's performance and life for electric fork-lift charges fast, compares with current low-voltage electric fork-lift, and very big shortening is long when charging, has ensured electric fork-lift's high efficiency, stable operation.

According to the above description, the present patent application has the following advantages:

1. the battery 24 independently dissipates heat, the heat dissipation effect of the battery 24 is obviously enhanced, the service performance of the battery 24 is ensured, and the service life of the battery 24 is prolonged;

2. electric fork-lift truck with this heat dissipation cooling system, work efficiency is high, charge soon, very big shortening charge time length.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications derived therefrom are intended to be within the scope of the utility model.

Claims

1. A heat-dissipating cooling system, comprising:

a first heat sink (11);

one end of the first heat dissipation pipeline (12) is connected with an outlet of the first radiator (11), and the other end of the first heat dissipation pipeline (12) is connected with an inlet of the first radiator (11) to form a first heat dissipation loop; the first heat dissipation pipeline (12) passes through a controller, an oil tank (16) and a motor;

a second radiator (21);

one end of the second heat dissipation pipeline (22) is connected with an outlet of the second radiator (21), and the other end of the second heat dissipation pipeline (22) is connected with an inlet of the second radiator (21) to form a second heat dissipation loop; the second heat dissipation duct (22) passes through a battery (24).

2. A heat-dissipating cooling system according to claim 1, characterized in that a first water pump (13) is connected to the first heat-dissipating duct (12), and a second water pump (23) is connected to the second heat-dissipating duct (22).

3. A radiator cooling system according to claim 1, characterised in that a first expansion tank (110) is connected to the first radiator (11) and a second expansion tank (25) is connected to the second radiator (21).

4. A heat-dissipating cooling system according to claim 1, characterized in that the first radiator (11) and the second radiator (21) are arranged side by side; and a heat radiation fan (3) is arranged on one side of the first heat radiator (11) and one side of the second heat radiator (21), and an air outlet of the heat radiation fan (3) is opposite to the first heat radiator (11) and the second heat radiator (21).

5. The heat-dissipating cooling system of claim 1, wherein the electric machine comprises a first electric machine (18) and a second electric machine (19), and the controller comprises a first controller (14) for controlling the first electric machine (18) and a second controller (15) for controlling the second electric machine (19).

6. The heat dissipation cooling system according to claim 5, wherein the first motor (18) and the first controller (14) are integrally provided, and the second motor (19) and the second controller (15) are separately provided; along the flowing direction of the medium, the first heat dissipation pipeline (12) sequentially passes through the first controller (14), the first motor (18), the second controller (15), the oil tank (16) and the second motor (19).

7. The heat sink cooling system according to claim 1, characterized in that the first heat sink conduit (12) also passes a sensor assembly (17).

8. The heat dissipation cooling system of claim 7, wherein the first heat dissipation pipe (12) is sequentially passed through a controller, an oil tank (16), a sensor assembly (17), and a motor in a flow direction of the medium.

9. The heat dissipating cooling system of claim 1, wherein the first heat dissipating conduit (12) and the second heat dissipating conduit (22) comprise rubber hoses.

10. An electric forklift comprising the heat dissipation cooling system as recited in any one of claims 1 to 9.