CN215826463U

CN215826463U - Vehicle battery system and vehicle

Info

Publication number: CN215826463U
Application number: CN202121750418.6U
Authority: CN
Inventors: 易靖宇; 王哲; 李享
Original assignee: Sany Automobile Manufacturing Co Ltd
Current assignee: Sany Automobile Manufacturing Co Ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2022-02-15
Anticipated expiration: 2031-07-29

Abstract

The utility model provides a vehicle battery system and a vehicle, the vehicle battery system comprises: at least two battery packages, install the below at the frame, at least two battery packages are parallelly connected each other in at least two battery packages, and every battery package includes the group battery of compriseing two at least batteries, this kind of vehicle battery system, adopt the group battery of constituteing of the battery more than two, then constitute the battery package by the group battery, at last use the group battery more than two jointly for the vehicle power supply, make and carry out the quantity combination of battery and battery package according to the history needs of different vehicles, the battery package is installed in the frame below, the collective integrated installation of a plurality of battery packages to the frame has been made things convenient for, the space after the integral erection occupies has been reduced, the composite erection through the battery more than two can reduce interface quantity, make things convenient for the heat dissipation management.

Description

Vehicle battery system and vehicle

Technical Field

The utility model relates to the field of vehicle battery systems, in particular to a vehicle battery system and a vehicle.

Background

The battery system is the core part of new forms of energy electric commercial car, because of being subject to the low energy density of current battery system, the realistic condition of low bulk density, and electric automobile manufacturer generally will install a plurality of battery package on the automobile body in order to improve electric automobile's continuation of the journey mileage. In the field of battery systems for commercial vehicles, different types of battery systems and chassis arrangement and integration exist, and the integration of a high-energy-density and high-power battery system and chassis modularization is always the development direction of electric commercial vehicles;

the battery system of the existing commercial vehicle is generally composed of a C box or an H box of the prior standard box body, the electric quantity configuration of the battery system is formed by splicing the standard box body, the battery system is divided into two branches which are connected in parallel, and a plurality of battery packs are connected in series and in parallel. The conventional solution has the following disadvantages: 1. the battery system has various types and numbers of battery packs, poor maintainability and is not beneficial to the overhaul and daily maintenance of the battery system; 2. the battery system has poor integration, low energy density and volume density, and the battery pack and the frame have poor integration; 3. the electrical interface of the battery system is complex, the number of heat management pipelines and interfaces is large, and the heat management balance of each battery pack is poor; 4. the electric quantity configuration of the whole vehicle is limited, the loading space is influenced, and the endurance mileage is insufficient.

SUMMERY OF THE UTILITY MODEL

Embodiments according to the present invention aim to solve or improve at least one of the above technical problems.

A first object according to an embodiment of the present invention is to provide a vehicle battery system.

Another object of the present invention is to provide a vehicle having the vehicle battery system.

An embodiment of the first aspect of the utility model provides a vehicle battery system for the vehicle, the vehicle includes the frame, and vehicle battery system includes: the at least two battery packs are arranged below the frame, and at least two battery packs of the at least two battery packs are connected in parallel; wherein, each battery package includes the group battery that at least two batteries are constituteed.

According to the vehicle battery system provided by the utility model, the battery pack consisting of more than two batteries is adopted, then the battery pack is formed by the battery pack, and finally the more than two battery packs are commonly used for supplying power to the vehicle, so that the quantity combination of the batteries and the battery packs is carried out according to the process requirements of different vehicles, the battery packs are arranged below the vehicle frame, the collective integrated installation of the plurality of battery packs on the vehicle frame is facilitated, the space occupation after the whole installation is reduced, the number of interfaces can be reduced through the combined installation of more than two batteries, and the heat dissipation pipe is facilitated.

Furthermore, the batteries with the same model can be conveniently disassembled and assembled, the maintainability is improved, and the maintenance and daily maintenance of the battery system are facilitated.

In addition, the technical solution provided by the embodiment of the present invention may further have the following additional technical features:

in any of the above technical solutions, at least two batteries in any battery pack are longitudinally stacked.

In this technical scheme, through fore-and-aft the setting of piling up for installation between the battery is inseparabler, and the battery can be similar to build the block and realize the independent assortment in vertical direction, can two or three battery combination, also conveniently carries out the battery of more than two and carries out fixed mounting in proper order, makes the installation when a plurality of battery package can implement.

In any of the above technical solutions, each battery pack includes at least two batteries connected in series with each other, and/or at least two batteries connected in parallel with each other.

In the technical scheme, the batteries in the battery pack can be connected in three modes, namely all modes of series connection, all modes of parallel connection and combination of series connection and parallel connection, so that the electrical connection interfaces such as wiring harnesses, connectors and the like, heat management circuits and interfaces are reduced, and the size of the battery pack is more compact.

In any of the above technical solutions, at least two battery packs are arranged side by side in the front-rear direction of the vehicle.

In the technical scheme, at least two battery packs are arranged side by side along the front and back direction of the vehicle, and can be orderly arranged and installed in the installation facing the plurality of battery packs, so that the batteries at the bottom of the vehicle body are more orderly, the uneven arrangement of the convex and concave parts is avoided, the motor is conveniently shielded and protected around the vehicle shell, and the working environment of the battery packs is safer.

In any of the above technical solutions, at least two battery packs are arranged at intervals.

In this technical scheme, because the road that traveles is not always flat, also the road surface of unevenness often appears, causes the emergence that the vehicle was rocked in traveling, appear ageing not hard up in the long-term assembly of battery, cause collision each other easily, cause the inside wearing and tearing collision loss of self, set up through the interval and left the space, both improved the whole life-span of battery package, also reduced the noise of colliding with of vehicle driving in-process.

In any one of the above technical solutions, the vehicle battery system further includes: and the at least two battery management systems are connected with the at least two battery packs in a one-to-one correspondence manner.

In the technical scheme, the battery management system is used for controlling the high-voltage on-off of the batteries and controlling the parameters of the batteries such as voltage, temperature and current, so that the electrical connection interfaces and the like between the batteries are reduced, the size and space are more compact, the battery management system adopts the existing commercially available equipment, the output voltage is stable when the number of the batteries is uneven, the accident occurrence probability is reduced, and the safety is improved.

In any of the above technical solutions, each battery pack further includes a protective case, and a battery pack formed by at least two batteries is disposed in the protective case; the protective shell is provided with an output connecting part of the battery pack.

In the technical scheme, because the battery pack is installed at the bottom of the vehicle, when the vehicle runs in severe weather, silt, sewage and sand which are easily rolled up by wheels are contacted, so that the battery pack is broken, short circuit and wall-hanging pollution are caused, the protective shell is additionally arranged to form isolation protection, the contact of various foreign matters outside the battery pack is avoided, and the battery pack is protected from being damaged. And the output connection part is used to electrically connect the battery pack. The output connection part may be embodied as a terminal or the like.

Furthermore, a through hole is formed in the protective shell, and the lead wires of the at least two batteries extend out of the protective shell through the through hole. The output of the lead of the battery is facilitated by the arrangement of the through hole.

In any of the above technical schemes, the bottom of the frame is provided with a support guide rail, and the battery pack is mounted on the support guide rail.

In this technical scheme, install the battery package through the support rail for more enough highly keep unanimous when a plurality of battery package installation, avoid highly uneven, inconvenient circular telegram contact each other compares in the different structures of vehicle chassis's different positions, carries out the support rail structure of the same structure and installs the dismouting operation that has also made things convenient for maintainer, has simplified the repacking of vehicle.

In any technical scheme, at least two support guide rails are arranged, and the support guide rails are arranged along the front-back direction of the vehicle; the battery pack can be inserted below the support rail in the left-right direction of the vehicle.

Further, at least two support rails are arranged at intervals in the left-right direction of the vehicle, and the battery pack is connected with the support rails.

In this technical scheme, set up two at least support guide rails, can form the fixed position more than two to single battery package, make the fixed of battery package more stable, the fixed position more than two also makes the fixed of battery package more firm, avoid appearing coming off at the in-process battery package of traveling, the battery package can be followed the left and right directions of vehicle and inserted the support guide rail below, and be connected with support guide rail, make the staff can be located the side of automobile body and install, the transport distance of battery package is shorter, staff's burden has been reduced, it is more convenient to operate when the installation of a plurality of battery packages, and form the reference point easily, be convenient for neatly install of battery package.

In any of the above technical solutions, the battery pack is disposed between front and rear wheels of the vehicle.

In the technical scheme, the battery pack is arranged between the front wheel and the rear wheel of the vehicle, so that the battery pack can be shielded and protected by the wheels in the driving direction of the vehicle, the phenomenon that large sundries on a road contact the battery pack in a high-speed state to form violent collision is avoided, and the safety of the battery pack is protected.

In a second aspect of the present invention, a vehicle is provided, including: a frame; in a first aspect, a vehicle battery system is provided that is mounted to a bottom portion of a vehicle frame.

Meanwhile, the mixer truck provided by the utility model has all the beneficial effects of the vehicle battery system in any one of the first aspect technical solutions because the mixer truck comprises the vehicle battery system in any one of the first aspect technical solutions, and the details are not repeated herein.

Additional aspects and advantages of embodiments in accordance with the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of embodiments in accordance with the utility model.

Drawings

Fig. 1 shows a schematic structural view of the inside of a battery pack according to an embodiment of the present invention;

fig. 2 shows a schematic structural view of a battery pack according to an embodiment of the present invention;

fig. 3 is a schematic view showing a mounting structure of a battery pack according to an embodiment of the present invention;

fig. 4 is a schematic view showing a mounting structure of three battery packs according to an embodiment of the present invention;

fig. 5 is a schematic view illustrating an installation structure of four battery packs according to an embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 5 is:

1 battery pack, 101 batteries, 102 protective case, 2 battery management system, 3 support rail.

Detailed Description

So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the utility model, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

A vehicle battery system and a vehicle provided according to an embodiment of the utility model are described below with reference to fig. 1 to 5.

As shown in fig. 1 to 5, an embodiment of the first aspect of the present invention provides a vehicle battery system, which is used for a vehicle, the vehicle includes a frame, the vehicle battery system includes at least two battery packs 1 installed below the frame, at least two battery packs 1 of the at least two battery packs 1 are connected in parallel; wherein, each battery pack 1 comprises a battery pack consisting of at least two batteries.

According to the vehicle battery system provided by the utility model, the battery pack consisting of more than two batteries is adopted, then the battery pack 1 is formed by the battery pack, and finally the more than two battery packs 1 are used together to supply power for the vehicle, so that the quantity combination of the batteries 101 and the battery packs 1 is carried out according to the process requirements of different vehicles, the battery packs 1 are arranged below the vehicle frame, the collective integrated installation of the plurality of battery packs 1 on the vehicle frame is facilitated, the space occupation after the whole installation is reduced, the quantity of interfaces can be reduced through the combined installation of more than two batteries, and the heat dissipation management is facilitated.

Furthermore, the batteries 101 with the same type can be conveniently disassembled and assembled, the maintainability is improved, and the maintenance and daily maintenance of the battery system are facilitated.

In any of the above embodiments, as shown in fig. 1, at least two batteries in any of the battery packs 1 are arranged in a longitudinally stacked manner.

In this embodiment, the batteries 101 are mounted more tightly by longitudinal stacking, the batteries 101 can be freely combined in the vertical direction like building blocks, two or three batteries 101 can be combined, and more than two batteries 101 can be conveniently fixed and mounted in sequence, so that the simultaneous mounting of a plurality of battery packs 1 can be implemented.

In any of the above embodiments, as shown in fig. 1, any battery pack 1 includes at least two batteries connected in series and/or at least two batteries connected in parallel.

In this embodiment, the batteries in the battery pack 1 can be connected in three ways, all in series, all in parallel, and a combination of series and parallel, so as to reduce the electrical connection interfaces, such as wiring harnesses, connectors, etc., thermal management lines and interfaces, and to make the size of the battery pack more compact.

In any of the above embodiments, as shown in fig. 1, at least two battery packs 1 are arranged side by side in the front-rear direction of the vehicle.

In this embodiment, at least two battery packs 1 are arranged side by side along the front-rear direction of the vehicle, and can be orderly arranged and installed in the installation facing a plurality of battery packs 1, so that the battery packs 1 at the bottom of the vehicle body are more orderly, uneven arrangement is avoided, the motor is conveniently shielded and protected around the vehicle shell, and the working environment of the battery packs 1 is safer.

In any of the above embodiments, as shown in fig. 1, at least two battery packs 1 are disposed at intervals.

In this embodiment, because the road that traveles is not always flat, also the road surface of unevenness often appears, causes the emergence that the vehicle went in the oscillation, and it is not hard up to appear ageing in the long-term assembly of battery package 1, causes mutual collision each other easily, causes the inside wearing and tearing collision loss of self, has left the space through the interval setting, has both improved the whole life-span of battery package 1, has also reduced the noise of colliding with of vehicle travel in-process.

In any of the above embodiments, as shown in fig. 1, the vehicle battery system further includes: and the at least two battery management systems 2 are connected with the at least two battery packs 1 in a one-to-one correspondence manner.

In this embodiment, the battery management system 2 is used for controlling the on/off of the high voltage of the battery, and the control of the voltage, the temperature, the current and other parameters of the battery 101, so that the number of the electrical connection interfaces and the like between the batteries is reduced, the size and the space are more compact, the battery management system 2 adopts the existing commercially available equipment, the output voltage is stable when the number of the plurality of batteries 101 is not uniform, the accident occurrence probability is reduced, and the safety is improved.

In any of the above embodiments, as shown in fig. 1 to 2, each battery pack 1 further includes a protective case 102, and a battery pack including at least two batteries is disposed in the protective case 102; further, the protective case 102 has an output connection portion of the battery pack 1 thereon.

In this embodiment, since the battery pack 1 is installed at the bottom of the vehicle, when the vehicle is driven in bad weather, the battery pack 1 is easily contacted by silt, sewage and sand and stones rolled up by the wheels, which causes the occurrence of rupture, short circuit and wall-hanging pollution of the battery pack 1, and the protective shell 102 is additionally arranged to form isolation protection, so as to prevent the battery pack 1 from being contacted by various external impurities, thereby protecting the battery pack 1 from being damaged. And the output connection part is used to accomplish the electrical connection of the battery pack 1. The output connection part may be embodied as a terminal or the like.

Further, a through hole is provided on the protective shell 102, and the leads of the at least two batteries extend out of the protective shell 102 through the through hole. The output of the lead of the battery is facilitated by the arrangement of the through hole.

In any of the above embodiments, as shown in fig. 3 to 5, the bottom of the vehicle frame is provided with the support rail 3, and the battery pack 1 is mounted on the support rail 3.

In this embodiment, install battery package 1 through support rail 3 for more enough highly keep unanimous when a plurality of battery packages 1 are installed, avoid highly uneven, inconvenient each other's circular telegram contact, compare in the different structures of the different positions on vehicle chassis, carry out the same support rail 3 structure of structure and install and also made things convenient for maintainer's dismouting operation, simplified the repacking of vehicle.

In any of the above embodiments, as shown in fig. 3 to 5, at least two support rails 3 are provided, and the support rails 3 are provided in the front-rear direction of the vehicle; the battery pack 1 can be inserted below the support rail 3 in the right-left direction of the vehicle.

Further, at least two support rails 3 are arranged at intervals in the left-right direction of the vehicle, and the battery pack 1 is connected to the support rails 3.

In this embodiment, as shown in fig. 3 to 5, at least two support rails 3 are provided, more than two fixing positions can be formed for a single battery pack 1, so that the battery pack 1 can be fixed more stably, the battery pack 1 can be fixed more firmly by more than two fixing positions, and the battery pack 1 is prevented from falling off during driving, the battery pack 1 can be inserted below the support rails 3 in the left and right directions of the vehicle and is connected with the support rails 3, so that a worker can be located at the side of the vehicle body for installation, the conveying distance of the battery pack 1 is shorter, the burden of the worker is reduced, the operation is more convenient during installation of a plurality of battery packs 1, and reference points are easily formed, so that the battery packs 1 can be installed neatly.

In any of the above embodiments, as shown in fig. 1, the battery pack 1 is disposed between the front and rear wheels of the vehicle.

In this embodiment, the battery pack 1 is installed between the front and rear wheels of the vehicle, so that the battery pack 1 can be shielded and protected by the wheels in the driving direction of the vehicle, and the battery pack 1 is prevented from being violently collided by large impurities on the road contacting the battery pack 1 in a high-speed state, and the safety of the battery pack 1 is protected.

In an embodiment of a second aspect of the present invention, there is provided a vehicle including: a frame; in one embodiment, the vehicle battery system is mounted to a bottom of a vehicle frame.

Meanwhile, the mixer truck provided by the utility model has all the beneficial effects of the vehicle battery system in any one of the first aspect embodiments as the mixer truck comprises the vehicle battery system in any one of the first aspect embodiments, and the details are not repeated herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle battery system for a vehicle including a frame, the vehicle battery system comprising:

the at least two battery packs are arranged below the frame, and at least two of the at least two battery packs are connected in parallel;

wherein, each battery package includes the group battery that at least two batteries are constituteed.

2. The vehicle battery system according to claim 1,

at least two batteries in any one of the battery packs are arranged in a longitudinal stack.

3. The vehicle battery system according to claim 1,

any battery pack comprises at least two batteries which are connected in series with each other and/or at least two batteries which are connected in parallel with each other.

4. The vehicle battery system according to claim 1,

at least two the battery package sets up side by side along the fore-and-aft direction of vehicle, and/or at least two the battery package sets up at interval each other.

5. The vehicle battery system according to claim 1, characterized by further comprising:

and the at least two battery management systems are connected with the at least two battery packs in a one-to-one correspondence manner.

6. The vehicle battery system according to claim 1,

each battery pack further comprises a protective shell, and a battery pack consisting of at least two batteries is arranged in the protective shell;

the protective shell is provided with an output connecting part of the battery pack.

7. The vehicle battery system of claim 1, wherein a bottom portion of the frame is provided with a support rail on which the battery pack is mounted.

8. The vehicle battery system according to claim 7, wherein the support rails are provided in at least two, the support rails being provided in a front-rear direction of the vehicle;

the battery pack is insertable below the support rail in a left-right direction of the vehicle.

9. The vehicle battery system according to any one of claims 1 to 8, characterized in that the battery pack is disposed between front and rear wheels of the vehicle.

10. A vehicle, characterized by comprising:

a frame;

the vehicle battery system of any of claims 1-9, mounted on a bottom of the frame.