CN216958203U - Battery pack - Google Patents

Abstract

The application relates to the technical field of energy storage batteries, in particular to a battery pack, which comprises a tray, a battery module and an upper cover, wherein the tray is provided with a first groove and a first heat dissipation port communicated with the first groove; the battery modules are arranged on the tray and cover the first groove, the battery modules and the first groove are enclosed to form a first heat dissipation channel, the battery modules are provided with a plurality of battery modules, and a second heat dissipation channel is reserved between every two adjacent battery modules; the upper cover sets up in the one end that the tray was kept away from to the battery module, and forms the third heat dissipation channel between upper cover and the battery module, and this battery package structural design is reasonable, need not to install radiator fan additional and can realize good heat dissipation, improves energy storage system's conversion efficiency.

Description

Battery pack

Technical Field

The application relates to the technical field of batteries for energy storage, in particular to a battery pack.

Background

In the technical field of energy storage, the heat dissipation of a battery is very important, and the heat dissipation is one of key technologies for ensuring the normal operation of an energy storage system. The current battery package structural design is unreasonable, leads to self to generate heat seriously, influences the life of battery package, in order to satisfy the heat dissipation demand, often installs radiator fan additional on the battery package and reaches radiating effect, but increased the loss to energy storage system self energy like this, reduced energy storage system's conversion efficiency.

SUMMERY OF THE UTILITY MODEL

An object of this application is to provide a battery package, this battery package structural design is reasonable, need not to install radiator fan additional and can realize good heat dissipation, improves energy storage system's conversion efficiency.

To this end, an embodiment of the present application provides a battery pack, including: the tray is provided with a first groove and a first heat dissipation port communicated with the first groove; the battery modules are arranged on the tray and cover the first grooves in a sealing mode, the battery modules and the first grooves are enclosed to form a first heat dissipation channel, the number of the battery modules is multiple, and a second heat dissipation channel is reserved between every two adjacent battery modules; the upper cover is arranged at one end, far away from the tray, of the battery module, and a third heat dissipation channel is formed between the upper cover and the battery module.

In a possible implementation manner, a second groove is arranged on the tray and is used for communicating two adjacent first grooves.

In a possible implementation manner, a positioning bump for positioning the battery module is arranged on the tray, so that the battery module just covers the first groove.

In a possible implementation manner, a second heat dissipation port communicated with the third heat dissipation channel is arranged on the upper cover, and a grid is arranged at the second heat dissipation port.

In a possible implementation manner, the battery module includes two oppositely disposed end plates, battery cells arranged between the two end plates, and a binding band for binding the two end plates and the plurality of battery cells.

In a possible implementation manner, the end plate is provided with a limit bayonet, and the upper cover is provided with a buckle which is matched with the limit bayonet in a clamping manner.

In a possible implementation manner, the battery module further comprises a connecting assembly, wherein the connecting assembly comprises a connecting aluminum bar electrically connected with the battery cells, a switching aluminum bar electrically connected with the connecting aluminum bar, and a connector electrically connected with the switching aluminum bar.

In a possible implementation manner, the connection assembly further includes a fixing seat disposed on one of the end plates, and the connector is mounted on the fixing seat.

In a possible implementation manner, the battery module further comprises a collection assembly for collecting battery module data, wherein the collection assembly comprises a collection integration module arranged on the upper cover and a collection module for collecting information of each battery cell, and the collection module is in communication connection with the collection integration module.

In a possible implementation manner, a handle is further arranged on the tray.

According to the battery pack that this application embodiment provided, the battery module of this battery pack is located between tray and the upper cover, and the battery module can directly dispel the heat all around, has first heat dissipation channel between tray and the battery module and dispels the heat, can dispel the heat through second heat dissipation channel between the adjacent battery module, has the third heat dissipation channel between battery module and the upper cover and dispels the heat, and is rational in infrastructure, need not to install radiator fan additional and can realize good heat dissipation, improves energy storage system's conversion efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be 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 application, and other drawings can be obtained by those skilled in the art without creative efforts. Further, in the drawings, like parts are denoted by like reference numerals, and the drawings are not drawn to actual scale.

Fig. 1 is a schematic diagram illustrating an explosion structure of a battery pack according to an embodiment of the present disclosure;

fig. 2 is a schematic cross-sectional view illustrating a battery pack according to an embodiment of the present disclosure;

fig. 3 is a schematic perspective view illustrating a battery pack according to an embodiment of the present disclosure;

fig. 4 is a schematic perspective view illustrating a tray provided in an embodiment of the present application;

fig. 5 is a schematic perspective view illustrating a battery module according to an embodiment of the present disclosure;

FIG. 6 is a schematic perspective view of an end plate provided in an embodiment of the present application;

fig. 7 is a schematic perspective view illustrating an upper cover according to an embodiment of the present disclosure;

fig. 8 shows a perspective structure schematic diagram of a fixing base provided in an embodiment of the present application.

Description of reference numerals:

1. a tray; 11. a first groove; 12. a first heat dissipation port; 13. a second groove; 14. positioning the bump; 15. a handle;

2. a battery module; 21. an end plate; 211. a limiting bayonet; 212. hoisting holes; 22. a battery cell; 23. a strapping tape;

3. an upper cover; 31. a grid; 32. buckling;

4. a first heat dissipation channel;

5. a second heat dissipation channel;

6. a third heat dissipation channel;

7. a connecting assembly; 71. connecting the aluminum row; 72. transferring the aluminum row; 73. a connector; 74. a fixed seat; 8. a collection assembly; 81. a collection integration module; 82. and an acquisition module.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in 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 obvious that the described embodiments are some embodiments of the present application, but not all embodiments. 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 application.

Fig. 1 is a schematic diagram illustrating an exploded structure of a battery pack according to an embodiment of the present disclosure; fig. 2 is a schematic cross-sectional view illustrating a battery pack according to an embodiment of the present disclosure; fig. 3 is a schematic perspective view illustrating a battery pack according to an embodiment of the present disclosure; fig. 4 is a schematic perspective view illustrating a tray according to an embodiment of the present disclosure; fig. 5 is a schematic perspective view illustrating a battery module according to an embodiment of the present disclosure;

fig. 6 is a schematic perspective view of an end plate provided in an embodiment of the present application; fig. 7 is a schematic perspective view illustrating an upper cover according to an embodiment of the present disclosure; fig. 8 shows a perspective structure schematic diagram of a fixing base provided in an embodiment of the present application.

As shown in fig. 1 to 8, an embodiment of the present application provides a battery pack, including:

the tray 1 is provided with a first groove 11 and a first heat radiating port 12 communicated with the first groove 11;

the battery modules 2 are arranged on the tray 1 and cover the first grooves 11 in a sealing mode, the battery modules 2 and the first grooves 11 enclose a first heat dissipation channel 4, the battery modules 2 are multiple, and a second heat dissipation channel 5 is reserved between every two adjacent battery modules 2;

the upper cover 3 is arranged at one end of the battery module 2 far away from the tray 1, and a third heat dissipation channel 6 is formed between the upper cover 3 and the battery module 2.

In this application, battery module 2 is located between tray 1 and the upper cover 3, battery module 2 can directly dispel the heat all around, it dispels the heat to have first heat dissipation channel 4 between tray 1 and the battery module 2, can dispel the heat through second heat dissipation channel 5 between the adjacent battery module 2, it dispels the heat to have third heat dissipation channel 6 between battery module 2 and the upper cover 3, and is rational in infrastructure, need not to install radiator fan additional and can realize good heat dissipation, and the conversion efficiency of energy storage system is improved.

In the embodiment of the present application, the tray 1 is provided with a second groove 13 for communicating two adjacent first grooves 11.

In this application, adjacent first recess 11 communicates through second recess 13 for a plurality of first recesses 11 keep the intercommunication, and heat transfer medium in first heat dissipation channel 4 not only can dispel the heat through first thermovent 12, can also communicate with second heat dissipation channel 5 through second recess 13, further improves the radiating effect.

In the embodiment of the present application, the tray 1 is provided with a positioning protrusion 14 for positioning the battery module 2, so that the battery module 2 just covers the first groove 11.

In this application, battery module 2 is installed on tray 1, fixes a position battery module 2 through locating convex block 14 for battery module 2 just covers first recess 11, thereby guarantees that the bottom of battery module 2 can fully be located first recess 11, makes the heat that gives off the bottom of battery module 2 can fully get into first heat dissipation channel 4 and dispel the heat.

Specifically, battery module 2 passes through positioning bolt with tray 1 and is connected fixedly, guarantees battery module 2 and tray 1's fixed effect.

In the embodiment of the present application, a second heat dissipation opening communicated with the third heat dissipation channel 6 is disposed on the upper cover 3, and a grid 31 is disposed at the second heat dissipation opening.

In this application, the radiating heat in battery module 2 top can directly get into third heat dissipation channel 6 in, then through the front and back both ends discharge heat dissipation of third heat dissipation channel 6, also can realize the heat dissipation through the second thermovent.

In another embodiment of the present application, the third heat dissipation channel 6 is communicated with the second heat dissipation channel 5, and the first heat dissipation channel 4 is communicated with the second heat dissipation channel 5 through the second groove 13, so that the heat exchange medium can flow among the first heat dissipation channel 4, the second heat dissipation channel 5 and the third heat dissipation channel 6, and the heat dissipation effect is further ensured.

In one embodiment of the present application, four first grooves 11 are provided, four battery modules 2 respectively cover the four first grooves 11, three second heat dissipation channels 5 are provided and are respectively located between two adjacent battery modules 2, two upper covers 3 are provided, one of the upper covers 3 is installed above two of the battery modules 2, the other upper cover 3 is installed above the other two of the battery modules 2, and the two upper covers 3 are in arc-shaped abutting connection.

As shown in fig. 5, in the present embodiment, the battery module 2 includes two end plates 21 disposed opposite to each other, battery cells 22 arranged between the two end plates 21, and a binding band 23 that binds the two end plates 21 and the plurality of battery cells 22.

In the present application, the battery module 2 includes two end plates 21, and a plurality of arranged battery cells 22 are sandwiched between the two end plates 21, and then the two end plates 21 and the plurality of battery cells 22 are bound and bound by a binding band 23.

Specifically, a positioning groove is formed in the outer side of the end plate 21, and the binding band 23 is located in the positioning groove of the end plate 21 to prevent the binding band 23 from falling off.

Specifically, the battery module 2 is connected to the tray 1 via the end plates 21.

As shown in fig. 6 to 7, in the embodiment of the present application, the end plate 21 is provided with a limit bayonet 211, and the upper cover 3 is provided with a buckle 32 which is in snap fit with the limit bayonet 211.

In this application, after end plate 21 and tray 1 were fixed, the buckle 32 through last clamps with spacing buckle 32 on the end plate 21, accomplishes the fixed of upper cover 3, and is easy and simple to handle.

Specifically, the upper cover 3 is provided with a front end fastener 32 and a rear end fastener 32, and is fastened to the front end plate 21 through the front end fastener 32, and is fastened to the rear end plate 21 through the rear end fastener 32.

In the embodiment of the present application, the connection assembly 7 is further included, and the connection assembly 7 includes a connection aluminum bar 71 electrically connected to the battery cells 22, a transition aluminum bar 72 electrically connected to the connection aluminum bar 71, and a connector 73 electrically connected to the transition aluminum bar 72.

In this application, connect aluminium row 71 and set up on battery module 2, switching aluminium row 72 is provided with two, and one of them switching aluminium row 72 is connected with the anodal aluminium row 71 electricity of being connected of a plurality of battery module 2, and another switching aluminium row 72 is connected with the negative pole of a plurality of battery module 2 and is connected aluminium row 71 electricity, and two connectors 73 are connected respectively to the other end of two switching aluminium rows 72, is connected with external equipment through connector 73 and realizes the charge-discharge.

The connector 73 is formed by an aluminum conductor and plastic through an injection molding process, and is a total positive interface and a total negative interface of the battery pack, and the aluminum conductor is connected with the battery module 2, so that a passage is formed inside the battery pack to output energy outwards.

As shown in fig. 8, the connecting assembly 7 further includes a fixing seat 74 disposed on one of the end plates 21, and the connector 73 is mounted on the fixing seat 74.

In the present application, the fixing seat 74 and the end plate 21 are fixed by bolts, and the connector 73 and the fixing seat 74 are fixed by bolts.

The fixing seat 74 is manufactured by an injection molding process, is light in structure, is fixed on the end plate 21 of the battery module 2 by using the fixing bolt of the battery module 2, ensures the fixing strength, reduces the number of bolts and is convenient to install.

As shown in fig. 6, in the embodiment of the present invention, the end plate 21 is provided with a hoisting hole 212 for hoisting and transferring the whole battery module 2.

In another embodiment of the present application, the connecting assembly 7 further includes a fixing plate disposed on the fixing seat 74, one end of the adapting aluminum bar 72 is fixed on the fixing seat 74, and the other end is fixed on the fixing plate.

In the embodiment of the present application, still including the collection subassembly 8 that is used for gathering battery module 2 data, collection subassembly 8 is including setting up collection integration module 81 on upper cover 3 and being used for gathering the collection module 82 of each battery monomer 22 information, and collection module 82 and collection integration module 81 communication connection.

In this application, the use information of each battery cell 22 respectively through the acquisition module 82 includes voltage information, current information, temperature information and storage information, and then the battery cell 22 information that will gather is transmitted to the collection integration module 81 and is concentrated and handled, then feeds back to the energy storage main control system.

The collection integration module 81 is composed of a PCB board and an injection molding part, and is used for receiving and outputting data of the collection module 82, and the collection integration module is structurally installed on the right upper cover 3 through the buckle 32, so that other space does not need to be occupied, and the installation is simple and convenient. Collect and adopt communication switching pencil to connect between integration module 81 and the collection module 82, communication switching pencil is accomodate into the wire casing of upper cover 3, and is both convenient and pleasing to the eye.

Specifically, the latch 32 includes a front latch and a rear latch disposed at one end of the upper cover, and the height of the front latch 32 is higher than that of the rear latch 32, so as to make a sufficient installation space for the collection module 82.

In the embodiment of the present application, a handle 15 is further disposed on the tray 1.

In this application, handle 15 mainly adjusts the position when installing for the battery package, loading and unloading when also making things convenient for subsequent maintenance simultaneously.

This battery package, battery module 2 is located between tray 1 and the upper cover 3, battery module 2 can directly dispel the heat all around, it dispels the heat to have first heat dissipation channel 4 between tray 1 and the battery module 2, can dispel the heat through second heat dissipation channel 5 between the adjacent battery module 2, it dispels the heat to have third heat dissipation channel 6 between battery module 2 and the upper cover 3, and is rational in infrastructure, need not to install radiator fan additional and can realize good heat dissipation, improve energy storage system's conversion efficiency.

It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

It should be readily understood that "on … …", "above … …" and "above … …" in this disclosure should be interpreted in the broadest sense such that "on … …" means not only "directly on something", but also includes the meaning of "on something" with intervening features or layers therebetween, and "above … …" or "above … …" includes not only the meaning of "above something" or "above" but also includes the meaning of "above something" or "above" with no intervening features or layers therebetween (i.e., directly on something).

Furthermore, spatially relative terms, such as "under," "below," "beneath," "above," "over," and the like, may be used herein for ease of description to describe one element or feature's illustrated relationship to another element or feature. 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. The device may have other orientations (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly as well.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. A battery pack, comprising:

the tray is provided with a first groove and a first heat dissipation port communicated with the first groove;

the battery modules are arranged on the tray and cover the first grooves in a sealing mode, the battery modules and the first grooves are enclosed to form a first heat dissipation channel, the number of the battery modules is multiple, and a second heat dissipation channel is reserved between every two adjacent battery modules;

the upper cover is arranged at one end, far away from the tray, of the battery module, and a third heat dissipation channel is formed between the upper cover and the battery module.

2. The battery pack according to claim 1, wherein the tray is provided with a second groove for communicating adjacent two of the first grooves.

3. The battery pack according to claim 1, wherein the tray is provided with a positioning projection for positioning the battery module so that the battery module just covers the first groove.

4. The battery pack according to claim 1, wherein a second heat dissipation opening communicating with the third heat dissipation channel is provided in the upper cover, and a grill is provided at the second heat dissipation opening.

5. The battery pack of claim 1, wherein the battery module includes two oppositely disposed end plates, a battery cell disposed in an array between the two end plates, and a strap that ties the two end plates and the plurality of battery cells.

6. The battery pack according to claim 5, wherein the end plate is provided with a limiting bayonet, and the upper cover is provided with a buckle which is matched with the limiting bayonet in a clamping manner.

7. The battery pack of claim 5, further comprising a connection assembly including a connection aluminum row electrically connected with the battery cells, a transition aluminum row electrically connected with the connection aluminum row, and a connector electrically connected with the transition aluminum row.

8. The battery pack of claim 7, wherein the connection assembly further comprises a retaining bracket disposed on one of the end plates, the connector being mounted to the retaining bracket.

9. The battery pack of claim 1, further comprising a collection assembly for collecting battery module data, wherein the collection assembly comprises a collection integration module disposed on the upper cover and a collection module for collecting information of each battery cell, and the collection module is in communication connection with the collection integration module.

10. The battery pack of claim 1, wherein the tray is further provided with a pull tab.

Images