CN220652107U

CN220652107U - Soft packet of group battery radiator unit and battery box

Info

Publication number: CN220652107U
Application number: CN202321700794.3U
Authority: CN
Inventors: 许永波; 徐建国; 李润朝; 廖兴群; 潘党育
Original assignee: Icon Energy System Shenzhen co ltd
Current assignee: Icon Energy System Shenzhen co ltd
Priority date: 2023-06-30
Filing date: 2023-06-30
Publication date: 2024-03-22
Anticipated expiration: 2033-06-30

Abstract

The application discloses a soft package battery pack heat dissipation assembly and a battery box, and relates to the technical field of battery heat dissipation; the aluminum profile is arranged in the box body, a plurality of accommodating cavities are formed in the aluminum profile, and the accommodating cavities are used for correspondingly accommodating the soft-package battery packs; the radiator comprises a cover plate, a fan and radiating fins, wherein the fan and the radiating fins are arranged on the cover plate; the heat generated by the soft package battery pack is sequentially transferred to the aluminum profile, the cover plate and the radiating fins, and the fan is used for radiating the radiating fins. The application provides a soft packet of group battery cooling subassembly can improve radiating efficiency and heat dissipation stability to the life of extension soft packet of group battery.

Description

Soft packet of group battery radiator unit and battery box

Technical Field

The application relates to the technical field of battery heat dissipation, in particular to a soft package battery pack heat dissipation assembly and a battery box.

Background

When the soft-package battery pack is used as an energy storage device, high-current charge and discharge are often carried out, the process can lead to rapid temperature rise of the battery core and backlog in the soft-package battery pack, and if heat dissipation is not timely carried out, battery protection can be triggered, so that the charge and discharge multiplying power of the soft-package battery pack is reduced, and normal use is affected.

The existing soft package battery pack heat dissipation mode mostly adopts natural cooling or liquid cooling, namely, air is utilized for assisting in heat dissipation, but the heat taken away by the air is limited, so that the heat dissipation efficiency is low and the heat dissipation is unstable; the liquid cooling utilizes the cooling liquid to assist in heat dissipation, but the cooling liquid is easy to cause short circuit of the battery in the soft package battery pack, so that the safety is low. In view of the foregoing, there is a need for a heat dissipation assembly for a soft pack battery pack that overcomes the shortcomings of the prior art.

Disclosure of Invention

An object of the application is to provide a soft packet of group battery cooling module and battery box, can improve radiating efficiency and heat dissipation stability to the life of extension soft packet of group battery.

Embodiments of the present application are implemented as follows:

in one aspect of the embodiments of the present application, a heat dissipation assembly of a soft package battery pack is provided, including a box, a soft package battery pack, an aluminum profile and a heat radiator; the aluminum profile is arranged in the box body, a plurality of accommodating cavities are formed in the aluminum profile, and the accommodating cavities are used for correspondingly accommodating the soft-package battery packs; the radiator comprises a cover plate, a fan and radiating fins, wherein the fan and the radiating fins are arranged on the cover plate; the heat generated by the soft package battery pack is sequentially transferred to the aluminum profile, the cover plate and the radiating fins, and the fan is used for radiating the radiating fins.

Optionally, a heat conducting layer is arranged between the aluminum profile and the cover plate and used for conducting heat of the aluminum profile to the cover plate.

Optionally, the soft package group battery includes a plurality of electric core, and a plurality of electric core and a plurality of holding chamber one-to-one setting hold and fill in the chamber and have first heat conduction pouring sealant for fixed electric core and with the heat conduction of electric core to the aluminium alloy.

Optionally, a second heat-conducting pouring sealant is filled in the box body and used for fixing the aluminum profile and conducting heat of the aluminum profile to the box body.

Optionally, the heat dissipation assembly of the soft package battery pack further comprises a battery management module and an acquisition bus plate, wherein the battery management module is electrically connected with the acquisition bus plate, and the acquisition bus plate is connected with the plurality of electric cores.

Optionally, the radiating fins are arranged in a strip shape and are arranged on the cover plate at intervals, the fan is arranged at the edge of the cover plate, the blowing direction of the fan is parallel to the length direction of the radiating fins, the fan is electrically connected with the battery management module, and the rotating speed of the fan is regulated by the battery management module.

Optionally, the both ends of aluminium alloy are provided with first curb plate and second curb plate respectively, are provided with first joint portion on first curb plate and the second curb plate respectively, are provided with second joint portion on the battery management module, and the battery management module passes through first joint portion and second joint portion joint between first curb plate and second curb plate.

Optionally, the first side plate or the second side plate is further provided with a third clamping part, the collecting bus plate is provided with a fourth clamping part, and the collecting bus plate is clamped on the first side plate or the second side plate through the third clamping part and the fourth clamping part.

Optionally, be provided with waterproof circle on the box, waterproof circle is located on the side of box opening part and laminating with the apron.

On the other hand, the embodiment of the application provides a battery box, including PCB board and above-mentioned soft packet of group battery cooling module, be provided with electric energy input and electric energy output on the PCB board, soft packet of group battery, battery management module and the collection busbar electricity in PCB board and the soft packet of group battery cooling module are connected.

The beneficial effects of the embodiment of the application include: through installing the soft packet of group battery in the aluminium alloy, can shift out the soft packet of group battery with the heat fast with the help of the high thermal conductivity of aluminium material, the apron of radiator sets up the heat transfer to the radiator with aluminium alloy laminating, the radiator passes through radiator fin with the heat dispersion, because radiator fin's quantity is more, the area of contact with the air is great, so radiating rate is faster, the fan of supplementary heat dissipation of cooperation again can further improve radiating efficiency and heat dissipation stability to improve the security of soft packet of group battery, increase of service life.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is an overall structure diagram of a battery box provided in an embodiment of the present application;

fig. 2 is an exploded view of a battery case and a heat dissipation assembly of a soft pack battery pack according to an embodiment of the present disclosure;

fig. 3 is an exploded view of an aluminum profile provided in an embodiment of the present application;

fig. 4 is a cross-sectional view of a battery box provided in an embodiment of the present application;

fig. 5 is a block diagram of a first side plate according to an embodiment of the present application.

Icon: 1-a box body; 11-waterproof ring; 2-soft pack battery pack; 3-aluminum profile; 31-a receiving chamber; 32-a first side plate; 33-a second side panel; 321-a first clamping part; 331-a third clamping part; 4-a heat sink; 41-cover plate; 411-connecting column; 42-fans; 43-heat sink fins; 5-a heat conducting layer; 6-a battery management module; 61-a second clamping part; 7-collecting a bus plate; 71-fourth clamping part; 8-PCB board.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present application, it should be noted that, the azimuth or positional relationship indicated by the terms "inner", "outer", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship that is commonly put when the product of the application is used, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," "fourth," and the like are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.

In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

Referring to fig. 1 to 4, the present embodiment provides a heat dissipation assembly of a soft battery pack, which includes a case 1, a soft battery pack 2, an aluminum profile 3 and a heat sink 4; the aluminum profile 3 is arranged in the box body 1, a plurality of accommodating cavities 31 are formed in the aluminum profile 3, and the accommodating cavities 31 are used for correspondingly accommodating the soft-package battery pack 2; the radiator 4 comprises a cover plate 41, a fan 42 and radiating fins 43 which are arranged on the cover plate 41, wherein the cover plate 41 is arranged at the opening of the box body 1 in a covering way and is attached to the aluminum profile 3; the heat generated by the soft package battery pack 2 is sequentially transferred to the aluminum profile 3, the cover plate 41 and the heat dissipation fins 43, and the fan 42 is used for dissipating the heat of the heat dissipation fins 43.

The soft-pack battery pack 2 is installed in the aluminum profile 3, so that heat generated by the soft-pack battery pack 2 can be quickly transferred to the radiator 4 due to higher heat conductivity of aluminum materials, and the heat is prevented from being accumulated in the soft-pack battery pack 2, so that the functions of the soft-pack battery pack 2 are affected. Meanwhile, the cover plate 41 of the radiator 4 is made of a material with high heat conductivity, so that heat can be quickly transferred to the radiator 4 after the aluminum profile 3 is attached. In the radiator 4, heat is dispersed on the radiating fins 43, the radiating fins 43 are positioned outside the box body 1, heat can be taken away through air flow, the air flow speed of the radiating fins 43 can be increased by the fan 42 arranged on the cover plate 41, so that rapid heat dissipation is realized, the heat dissipation efficiency is improved, the function and the safety of the soft-package battery pack 2 are not affected by the soft-package battery pack heat dissipation component, and the stability is higher.

Note that, in the embodiment of the present application, the material of the cover plate 41 is not further limited, and the use scenario of the embodiment is satisfied and the same functions and effects are provided. Of course, the aluminum profile 3 may be replaced by a profile made of another material having a higher thermal conductivity, and may have the same function and effect.

In an alternative embodiment, referring to fig. 2 and 4, a heat conducting layer 5 is provided between the aluminium profile 3 and the cover plate 41 for conducting heat from the aluminium profile 3 to the cover plate 41.

Specifically, aluminum profile 3 installs in box 1, and apron 41 connects the opening part at box 1, and the high and the opening part of box 1 of aluminum profile 3 flushes the side and can laminate with apron 41 after apron 41 is connected and accomplish, sets up the purpose of heat conduction layer 5 and avoids leading to apron 41 and aluminum profile 3 laminating inseparable because of processing or installation error to cause the poor problem of heat conduction effect.

Wherein, heat conduction layer 5 can be by heat conduction silica gel piece, heat conduction glue, heat conduction mud etc. material constitution, and the texture is softer to laminate between two contact surfaces more closely, promote the heat conduction effect, avoid apron and aluminium alloy's surface smoothness not enough and influence the inseparable degree of laminating.

In an alternative embodiment, referring to fig. 3, the soft pack battery pack 2 includes a plurality of electric cells, the electric cells and the accommodating cavities 31 are arranged in a one-to-one correspondence, and the accommodating cavities 31 are filled with a first heat conducting pouring sealant (not shown in the figure) for fixing the electric cells and conducting heat of the electric cells to the aluminum profile 3.

Specifically, the soft package battery pack 2 is composed of a plurality of electric cores, and the aluminum profile 3 is provided with a plurality of accommodating cavities 31 for installing the electric cores in a one-to-one correspondence manner, so that the electric cores can be prevented from being stacked together to ensure that heat is accumulated among the electric cores. In addition, fill first heat conduction pouring sealant in holding chamber 31 and can fill the gap between electric core and holding chamber 31, make electric core and holding chamber 31 laminating inseparabler, still can play fixed electric core position and waterproof effect after first heat conduction pouring sealant solidification, the thermal conductivity of first heat conduction pouring sealant is higher simultaneously, can improve the heat conduction efficiency between soft packet of group battery 2 and the aluminium alloy 3.

Further, the case 1 is filled with a second heat-conducting potting adhesive (not shown) for fixing the aluminum profile 3 and conducting heat of the aluminum profile 3 to the case 1.

Specifically, similar with the effect that first heat conduction pouring sealant played, the second heat conduction pouring sealant can play the effect of fixed aluminium alloy 3 after solidifying, avoids aluminium alloy 3 to rock in box 1, simultaneously, and the second heat conduction pouring sealant can be with the partial heat transfer on the aluminium alloy 3 to box 1 surface, utilizes box 1 surface to dispel the heat, in addition, also can play the effect that prevents to enter water in the box 1. Wherein the second heat-conducting pouring sealant is the same as the first heat-conducting pouring sealant in the above embodiment, except for the different filling positions.

In an alternative embodiment, referring to fig. 2 and 3, the heat dissipation assembly of the soft pack battery pack further includes a battery management module 6 and a collection bus plate 7, the battery management module 6 is electrically connected with the collection bus plate 7, and the collection bus plate 7 is connected with the plurality of electric cells.

Specifically, the collecting bus plate 7 can integrate the electric energy and parameters of a plurality of electric cores installed in the plurality of accommodating cavities 31, the battery management module 6 can monitor and manage various parameters and functions of the soft-package battery pack 2 in real time, the temperature condition of the soft-package battery pack 2 can be accurately obtained through the cooperation of the collecting bus plate 7 and the battery management module 6, the working state of the radiator 4 can be conveniently adjusted according to the temperature condition, so that the optimal radiating effect is achieved, and the radiating efficiency and the radiating stability of the soft-package battery pack 2 can be improved.

In an alternative embodiment, referring to fig. 1, 2 and 4, the heat dissipation fins 43 are arranged in a long strip shape and are arranged on the cover 41 at intervals, the blower 42 is arranged at the edge of the cover 41, the blowing direction of the blower 42 is parallel to the length direction of the heat dissipation fins 43, the blower 42 is electrically connected with the battery management module 6, and the rotation speed of the blower 42 is regulated by the battery management module 6.

Specifically, the heat radiation fins 43 are disposed on the cover plate 41, and the heat transferred to the cover plate 41 is transferred to the heat radiation fins 43 through contact with the heat radiation fins 43, and finally heat radiation is achieved through contact of the heat radiation fins 43 with air. The heat dissipation fins 43 are arranged in a strip shape, so that the contact area with air can be increased, namely, the heat dissipation area is increased, and the plurality of heat dissipation fins 43 are distributed on the cover plate 41 at intervals, so that heat on the cover plate 41 can be evenly dissipated, and the situation of uneven heat distribution on the cover plate 41 is avoided. Meanwhile, the fan 42 can be arranged to blow and cool the heat dissipation fins 43, the fan 42 is arranged at a position where the blowing direction is parallel to the length direction of the heat dissipation fins 43 so as to achieve the optimal heat dissipation effect, otherwise, the heat dissipation fins 43 close to the fan 42 can block the wind power of the fan 42, and the heat dissipation effect is poor.

In addition, the fan 42 is electrically connected with the battery management module 6, so that the working form of the fan 42 can be adjusted in time according to the temperature condition of the soft pack battery pack 2, the heat dissipation efficiency and the heat dissipation stability can be improved, the soft pack battery pack 2 can always keep a stable working state, for example, when the temperature is low, the battery management module 6 controls the fan 42 to run at a low rotating speed, when the temperature is high, the fan 42 is controlled to run at a high rotating speed, and when the temperature exceeds a certain degree, the fan 42 is controlled to run at a high rotating speed and blow cold air.

In an alternative embodiment, referring to fig. 2, 3 and 5, the two ends of the aluminum profile 3 are respectively provided with a first side plate 32 and a second side plate 33, the first side plate 32 and the second side plate 33 are respectively provided with a first clamping portion 321, the battery management module 6 is provided with a second clamping portion 61, and the battery management module 6 is clamped between the first side plate 32 and the second side plate 33 through the first clamping portion 321 and the second clamping portion 61.

Specifically, since the battery management module 6 may generate heat during operation, the battery management module 6 may be clamped on the aluminum profile 3 by the first clamping portion 321 and the second clamping portion 61 to cool the battery management module 6 at the same time. Wherein, the first clamping portion 321 and the second clamping portion 61 adopt the cooperation of the buckle and the clamping hole, so as to facilitate the disassembly and assembly of the battery management module 6. Meanwhile, the battery management module 6 is clamped between the first side plate 32 and the second side plate 33, so that occupied space can be reduced, and the whole soft package battery pack heat dissipation assembly is more compact.

Further, referring to fig. 5, a third clamping portion 331 is further disposed on the first side plate 32 or the second side plate 33, a fourth clamping portion 71 is disposed on the collecting and collecting bus plate 7, and the collecting and collecting bus plate 7 is clamped on the first side plate 32 or the second side plate 33 through the third clamping portion 331 and the fourth clamping portion 71.

The collecting bus plate 7 needs to be connected with the tabs of the soft-package battery pack 2, so that terminal voltage, temperature, charging and discharging current and total voltage of each battery cell can be collected in real time in the charging and discharging process, and overcharge or overdischarge phenomena are prevented.

Specifically, the collecting and collecting plate 7 may generate heat during the working process, so that the heat is conveniently emitted out when the collecting and collecting plate 7 is connected to one side of the aluminum profile 3, and the collecting and collecting plate 7 is connected to the first side plate 32 or the second side plate 33 in a clamping manner depending on which side of the tab of the soft pack battery pack 2 is located. Meanwhile, the third clamping portion 331 and the fourth clamping portion 71 adopt a matching mode of a buckle and a clamping hole, so that the collecting and assembling and disassembling of the bus plate 7 are facilitated.

In an alternative embodiment, referring to fig. 2, the case 1 is provided with a waterproof ring 11, and the waterproof ring 11 is located on a side of the opening of the case 1 and is attached to the cover 41.

Specifically, waterproof ring 11 presss from both sides between side and apron 41 of box 1 opening part, can play sealed waterproof's effect, avoids the soft packet of group battery 2 of water damage in the box 1, improves the security.

Referring to fig. 1, fig. 2 and fig. 4, the embodiment of the application further discloses a battery box, which comprises a PCB board 8 and the soft pack battery pack heat dissipation assembly in the foregoing embodiment, wherein an electric energy input end and an electric energy output end are arranged on the PCB board 8, and the PCB board 8 is electrically connected with the soft pack battery pack 2, the battery management module 6 and the collecting bus plate 7 in the soft pack battery pack heat dissipation assembly.

Wherein, PCB board 8 is connected with soft packet of group battery 2, battery management module 6 and collection busbar 7 electricity and can play the effect of integration, and the user of being convenient for uses and control the battery box, and the electric energy input is used for charging soft packet of group battery 2, and the electric energy output is used for exporting soft packet of group battery 2's electric energy.

In addition, the cover 41 is further provided with a connection post 411, the PCB 8 is connected to the cover 41 through the connection post 411 and above the heat dissipation fins 43, and the electronic components such as the electric energy input end, the electric energy output end and the inverter may have a heating problem during the operation of the battery box because the electronic components are provided on the PCB 8, so the fan 42 is disposed on the heat dissipation fins 43 to dissipate heat from the heat dissipation fins 43 and the electronic components. The structure and the beneficial effects of the heat dissipation assembly of the soft-pack battery pack are described in detail in the foregoing embodiments, and are not described herein again.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A soft pack battery pack heat sink assembly, comprising: the battery pack comprises a box body, a soft package battery pack, an aluminum profile and a radiator; the aluminum profile is arranged in the box body, a plurality of accommodating cavities are formed in the aluminum profile, and the accommodating cavities are used for accommodating the soft-package battery packs correspondingly; the radiator comprises a cover plate, a fan and radiating fins, wherein the fan and the radiating fins are arranged on the cover plate, and the cover plate is arranged at the opening of the box body in a covering manner and is attached to the aluminum profile; the heat generated by the soft package battery pack is sequentially transferred to the aluminum profile, the cover plate and the radiating fins, and the fan is used for radiating the radiating fins.

2. The heat sink assembly of claim 1, wherein a thermally conductive layer is disposed between the aluminum profile and the cover plate for conducting heat from the aluminum profile to the cover plate.

3. The heat dissipation assembly of a soft package battery pack according to claim 2, wherein the soft package battery pack comprises a plurality of battery cells, the battery cells and the accommodating cavities are arranged in a one-to-one correspondence manner, and the accommodating cavities are filled with first heat conduction pouring sealant for fixing the battery cells and conducting heat of the battery cells to the aluminum profile.

4. The heat sink assembly of claim 2, wherein the housing is filled with a second thermally conductive potting adhesive for securing the aluminum profile and conducting heat from the aluminum profile to the housing.

5. The pouch battery pack heat sink assembly of claim 3 further comprising a battery management module and a collection buss plate, the battery management module electrically connected to the collection buss plate, the collection buss plate connected to a plurality of the cells.

6. The heat dissipation assembly of a soft package battery pack according to claim 5, wherein the heat dissipation fins are arranged in a strip shape and are arranged on the cover plate at intervals, the fan is arranged at the edge of the cover plate, the blowing direction of the fan is parallel to the length direction of the heat dissipation fins, the fan is electrically connected with the battery management module, and the rotating speed of the fan is regulated by the battery management module.

7. The heat dissipation assembly of a soft package battery pack according to claim 6, wherein a first side plate and a second side plate are respectively arranged at two ends of the aluminum profile, a first clamping portion is respectively arranged on the first side plate and the second side plate, a second clamping portion is arranged on the battery management module, and the battery management module is clamped between the first side plate and the second side plate through the first clamping portion and the second clamping portion.

8. The heat dissipation assembly of a flexible battery pack according to claim 7, wherein a third clamping portion is further provided on the first side plate or the second side plate, a fourth clamping portion is provided on the collection bus plate, and the collection bus plate is clamped on the first side plate or the second side plate through the third clamping portion and the fourth clamping portion.

9. The heat sink assembly of any one of claims 1-5, wherein the case is provided with a waterproof ring, and the waterproof ring is located on a side of the opening of the case and is attached to the cover plate.

10. The battery box is characterized by comprising a PCB and the soft package battery pack heat dissipation assembly as claimed in any one of claims 1-9, wherein an electric energy input end and an electric energy output end are arranged on the PCB, and the PCB is electrically connected with the soft package battery pack, the battery management module and the collecting bus plate in the soft package battery pack heat dissipation assembly.