CN213905454U

CN213905454U - Battery heat dissipation system of pure electric wide-body mining dump truck

Info

Publication number: CN213905454U
Application number: CN202023183840.6U
Authority: CN
Inventors: 吴阳
Original assignee: Liugong Changzhou Mining Machinery Co ltd
Current assignee: Liugong Changzhou Mining Machinery Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-08-06
Anticipated expiration: 2030-12-25

Abstract

The utility model relates to a heat dissipation technical field, in particular to mining dump truck battery cooling system of electricelectric power wide body, including heat dissipation unit, group battery and the circulative cooling water course that connects into circulation loop with the cooling channel in the battery of heat dissipation unit and group battery, be connected with the moisturizing branch road on the circulative cooling water course, the moisturizing is provided with expansion tank on the road, is equipped with the power unit that is used for the hydrologic cycle to provide power on the circulative cooling water course, the utility model discloses a long-time drive can be solved to the cooling system, and battery high temperature phenomenon improves battery life.

Description

Battery heat dissipation system of pure electric wide-body mining dump truck

Technical Field

The utility model relates to a heat dissipation technical field, in particular to mining dump truck battery cooling system of pure electric wide body.

Background

At present, the traditional battery mining wide-body vehicle has the following defects:

(1) the battery has no special heat dissipation system, and the battery has high-temperature alarm after the vehicle runs for a long time, so that the service life of the battery is greatly influenced;

(2) the battery has no special heat dissipation system, and the battery has high-temperature alarm after the vehicle runs for a long time, so that the ignition risk of the battery can be caused;

(3) under the condition that the electric car is provided with a heat dissipation system, pipelines are arranged in a disorderly way, and the flow resistance of the pipelines is larger;

(4) the trolley-bus is being equipped with the cooling system condition under, has expansion tank position to arrange improperly, leads to the interior moisturizing performance of system not enough.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the mining wide body car battery radiating effect that prior art exists is not good, the utility model provides a pure electronic wide body mining dump truck battery cooling system that battery radiating effect is good.

The utility model provides a technical scheme that its technical problem adopted is:

the battery heat dissipation system comprises a heat dissipation unit, a battery pack and a circulating cooling water channel, wherein a cooling channel in the battery of the heat dissipation unit and the battery pack is connected into a circulating loop, the circulating cooling water channel is connected with a water replenishing branch, an expansion water tank is arranged on the water replenishing branch, and a power mechanism for providing power for water circulation is arranged on the circulating cooling water channel.

Furthermore, when the number of batteries in the battery pack is greater than 1, the cooling channels of the batteries are connected in series or in parallel, the circulating cooling water channel comprises a connecting pipeline connecting the cooling channels, and when the cooling channels of adjacent batteries are connected in series, the number of the cooling channels connected in series is less than or equal to 3, so that the phenomenon that the water resistance is too large due to the fact that the batteries are connected in series excessively is avoided.

Furthermore, the power mechanism is a pump arranged on the circulating cooling water channel.

Further, the circulative cooling water course including be used for the first cooling zone of heat dissipation unit intaking, be used for the second cooling zone of heat dissipation unit play water, be used for the third cooling zone of group battery heat dissipation intaking and be used for the fourth cooling zone of group battery heat dissipation play water, circulative cooling water course on be equipped with first three-way valve and second three-way valve, first three-way valve with first cooling zone, fourth cooling zone and one of them moisturizing branch road intercommunication, the second three-way valve with second cooling zone, third cooling zone and another moisturizing branch road intercommunication.

Furthermore, the distance between the bottom surface of the expansion water tank and the top surface of the heat radiating unit is more than or equal to 150 mm.

Has the advantages that:

(1) the heat dissipation system of the utility model can solve the high temperature phenomenon of the long-time driving battery and improve the service life of the battery;

(2) the cooling system of the utility model solves the problem of overlarge water resistance in the system by reasonably setting the number of cooling channels in the battery;

(3) the utility model discloses a cooling system, the installation of expansion tank arranges the problem in the solution system.

Drawings

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

Fig. 1 is a schematic structural diagram of a heat dissipation system of the present invention;

fig. 2 is a front view of a pipeline structure of the heat dissipation system of the present invention;

fig. 3 is a left side view of the pipeline structure of the heat dissipation system of the present invention;

fig. 4 is a top view of the pipeline structure of the heat dissipation system of the present invention.

The cooling system comprises an expansion water tank 1, an expansion water tank 21, a first three-way valve 22, a second three-way valve 3, a heat dissipation unit 4, a battery 5, a circulating cooling water channel 51, a first cooling section 52, a second cooling section 53, a third cooling section 54, a fourth cooling section 6 and a water supplementing branch.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

Referring to fig. 1-4, a battery cooling system of a pure electric wide-body mining dump truck comprises a heat radiating unit 3, a battery pack and a circulating cooling water channel 5 which connects cooling channels in batteries 4 of the heat radiating unit 3 and the battery pack into a circulating loop, wherein a water supplementing branch 6 is connected to the circulating cooling water channel 5, an expansion water tank 1 is arranged on the water supplementing branch 6, and a power mechanism for providing power through water circulation is arranged on the circulating cooling water channel 5. The power mechanism is a pump arranged on the circulating cooling water channel 5. The heat sink unit 3 is used for engine heat dissipation. As indicated by arrows in fig. 1, water flows out of the heat sink assembly 3, flows through the first cooling section 51, flows to the second cooling pipeline 52, flows through the cooling channels inside the batteries 4 (the cooling channels of adjacent batteries 4 are connected by a connecting pipeline, and a water channel in a parallel or serial form is formed in the battery pack), and finally flows back to the first cooling pipeline 51 from the second cooling pipeline 52 to form a circulating cooling water channel 5, water in the circulating cooling water channel 5 is heated and then evaporates, so that the water amount is reduced, and the water in the expansion water tank 1 is supplemented by the water supplementing branch 6.

When the number of the batteries 4 in the battery pack is larger than 1, the cooling channels of the batteries 4 are connected in series or in parallel, the circulating cooling water channel 5 comprises a connecting pipeline for connecting the cooling channels, and when the cooling channels of the adjacent batteries 4 are connected in series, the number of the cooling channels connected in series is less than or equal to 3.

The circulating cooling water channel 5 comprises a first cooling section 51 for water inlet of the heat dissipation unit 3, a second cooling section 52 for water outlet of the heat dissipation unit 3, a third cooling section 53 for water inlet of battery pack heat dissipation and a fourth cooling section 54 for water outlet of battery pack heat dissipation, a first three-way valve 21 and a second three-way valve 22 are arranged on the circulating cooling water channel 5, the first three-way valve 21 communicates the first cooling section 51, the fourth cooling section 54 and one of the water replenishing branches 6, and the second three-way valve 22 communicates the second cooling section 52, the third cooling section 53 and the other water replenishing branch 6.

The distance between the bottom surface of the expansion water tank 1 and the top surface of the heat radiating unit 3 is more than or equal to 150 mm.

The expansion water tank 1 needs to be installed at the highest position of the whole heat dissipation system, and the distance between the bottom surface of the expansion water tank and the top surface of the heat dissipation unit is at least 150 mm. When the cooling channels of a plurality of battery packs are connected in parallel, attention needs to be paid to the water flow balance of the cooling channels, and water flow control valves in the battery packs can be added when necessary.

Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.

Claims

1. The battery cooling system of the pure electric wide-body mining dump truck is characterized by comprising a cooling unit (3), a battery pack and a circulating cooling water channel (5) for connecting cooling channels in batteries (4) of the cooling unit (3) and the battery pack into a circulating loop, wherein a water supplementing branch (6) is connected to the circulating cooling water channel (5), an expansion water tank (1) is arranged on the water supplementing branch (6), and a power mechanism for providing power for water circulation is arranged on the circulating cooling water channel (5).

2. The battery cooling system of the pure electric wide-body mining dump truck according to claim 1, characterized in that: when the number of the batteries (4) in the battery pack is larger than 1, the cooling channels of the batteries (4) are connected in series or in parallel, the circulating cooling water channel (5) comprises a connecting pipeline for connecting the cooling channels, and when the cooling channels of the adjacent batteries (4) are connected in series, the number of the cooling channels connected in series is smaller than or equal to 3.

3. The battery cooling system of the pure electric wide-body mining dump truck according to claim 1, characterized in that: the power mechanism is a pump arranged on the circulating cooling water channel (5).

4. The battery cooling system of the pure electric wide-body mining dump truck according to claim 2, characterized in that: the circulating cooling water channel (5) comprises a first cooling section (51) for water inlet of the heat dissipation unit (3), a second cooling section (52) for water outlet of the heat dissipation unit (3), a third cooling section (53) for water inlet of battery pack heat dissipation and a fourth cooling section (54) for water outlet of battery pack heat dissipation, wherein a first three-way valve (21) and a second three-way valve (22) are arranged on the circulating cooling water channel (5), the first three-way valve (21) is communicated with the first cooling section (51), the fourth cooling section (54) and one water replenishing branch (6), and the second three-way valve (22) is communicated with the second cooling section (52), the third cooling section (53) and the other water replenishing branch (6).

5. The battery cooling system of the pure electric wide-body mining dump truck according to claim 1, characterized in that: the distance between the bottom surface of the expansion water tank (1) and the top surface of the heat radiating unit (3) is more than or equal to 150 mm.