CN209993637U

CN209993637U - Square battery module

Info

Publication number: CN209993637U
Application number: CN201920594834.8U
Authority: CN
Inventors: 薛军; 赵加来; 黄�俊
Original assignee: Shenzhen Futureway Technology Co Ltd
Current assignee: Shenzhen Fuchengwei Technology Co ltd
Priority date: 2019-04-28
Filing date: 2019-04-28
Publication date: 2020-01-24
Anticipated expiration: 2029-04-28

Abstract

The utility model discloses a square battery module belongs to battery technical field and includes casing and a plurality of square battery, and is a plurality of square battery set up side by side in the casing, square battery's shell is the stereoplasm shell, adjacent two be provided with buffer structure between the square battery, buffer structure includes patterned basal portion, patterned basal portion is in by liquid macromolecular material one time the solidification forms on square battery's the side. The utility model provides a square battery module, through set up buffer structure on square battery's side, buffer structure includes patterned basal portion, and patterned basal portion is formed by the solidification of liquid macromolecular material, compares with prior art, can not only enough provide antidetonation and anti fall protection to square battery, avoids square battery to take place to damage when receiving collision, vibrations or falling from the eminence, and easy and simple to handle is swift moreover, can also save material, reduction in production cost.

Description

Square battery module

Technical Field

The utility model relates to a battery technology field especially relates to a square battery module.

Background

Lithium batteries are used more and more widely in our daily lives, and various packaging forms such as pouch batteries, prismatic batteries and cylindrical batteries are produced by the lithium batteries in different production processes and different use requirements, wherein shells of the prismatic batteries and the cylindrical batteries are made of metal materials.

In a prismatic battery module including prismatic batteries, in order to reliably assemble and group a plurality of prismatic batteries, a structure for fixing the prismatic batteries needs to be added to the outside. In order to perform anti-seismic and anti-falling protection on each square battery, a buffer structure is usually formed by sticking silica gel or foam around each square battery to play a role in protection, but the silica gel or foam sticking mode needs to be stuck for many times to cover all the surfaces of the battery core, so that the operation is complex, the automation is difficult, and the cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a square battery module to paste silica gel or the cotton complex operation, the work efficiency who forms buffer structure of bubble are low, the higher problem of cost on solving the square battery that exists among the prior art.

As the conception, the utility model adopts the technical proposal that:

the utility model provides a square battery module, includes casing and a plurality of square battery, and is a plurality of square battery set up side by side in the casing, square battery's shell is the stereoplasm shell, adjacent two be provided with buffer structure between the square battery institute, buffer structure includes patterned basal portion, patterned basal portion is in by liquid macromolecular material once solidify on square battery's the side and form.

Further, the high polymer material is silicon rubber or polyurethane.

Further, the patterned base comprises a strip of buffer; or the patterned base comprises spaced-apart buffer strips.

Further, the cross section of the buffer strip is semi-elliptical or semi-circular.

Further, the patterned base is one or more of a circular ring structure, a polygonal structure, a mesh structure, a serpentine structure, a rectangular spiral structure, a mosquito coil structure, and a spider-mesh structure.

Furthermore, the square battery module further comprises a fixing frame, the fixing frame comprises two fastening plates which are arranged oppositely, the two fastening plates are respectively located on two sides of the arrangement direction of the square batteries and are configured to clamp the square batteries.

Further, the two square batteries located at the outermost sides are provided with the buffer structures towards the corresponding fastening plate side.

Further, each fastening plate is provided with the buffer structure on a side facing the corresponding square battery.

Further, the square battery module further comprises a heat conducting piece and a liquid cooling plate, wherein the heat conducting piece and the liquid cooling plate are both located in the shell, and the heat conducting piece is located between the square battery and the liquid cooling plate.

Furthermore, the square battery module further comprises a supporting buffer structure, the supporting buffer structure is arranged in the shell, and the liquid cooling plate is arranged on the supporting buffer structure.

The utility model has the advantages that:

the utility model provides a square battery module, through set up buffer structure on square battery's side, buffer structure includes patterned basal portion, and patterned basal portion is formed by the solidification of liquid macromolecular material, compares with prior art, can not only enough provide antidetonation and anti fall protection to square battery, avoids square battery to take place to damage when receiving collision, vibrations or falling from the eminence, and easy and simple to handle is swift moreover, can also save material, reduction in production cost.

Drawings

Fig. 1 is a schematic structural diagram of a square battery module provided by the present invention;

fig. 2 is a first schematic structural diagram of a buffer structure provided by the present invention;

fig. 3 is a schematic structural diagram ii of the buffering structure provided by the present invention;

fig. 4 is a schematic structural diagram three of the buffering structure provided by the present invention.

In the figure:

1. supporting the cushioning structure; 2. a liquid-cooled plate; 3. a heat conductive member; 4. a fastening plate; 5. a square battery; 6. a buffer structure; 61. a first buffer strip; 62. a second buffer bar; 63. a third buffer bar.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

Fig. 1 is a schematic structural diagram of a square battery module provided in this embodiment. As shown in fig. 1, the prismatic battery module provided in this embodiment includes a housing (not shown), a fastening frame, and a plurality of prismatic batteries 5, wherein the prismatic batteries 5 are arranged in the housing in parallel along the thickness direction of the prismatic batteries 5. The case of the prismatic battery 5 is a hard case, preferably made of steel, aluminum or an aluminum-manganese alloy in the present embodiment. The fastening frame is located the casing for fix a plurality of square battery 5 as an organic whole, specifically speaking, in this embodiment, the fastening frame includes two mounting plates 4 and the fastener that sets up relatively, two mounting plates 4 are located the both sides of a plurality of square battery 5 array orientation respectively, the fastener is the screw bolt and nut, the fastener is provided with four groups, be located four angles of mounting plate 4 respectively, the screw bolt passes two mounting plates 4 respectively, can realize pressing from both sides a plurality of square battery 5 tightly through screwing up the nut, but this embodiment is not limited to this to the structure of fastening frame, the fastening frame can also be other structures, for example the fastener passes the casing and exerts the effort to mounting plate 4 makes two mounting plates 4 press from both sides a plurality of square battery 5 tightly.

In addition, a heat conducting piece 3, a liquid cooling plate 2 and a supporting buffer structure 1 are arranged in the shell. Wherein, support buffer structure 1 and set up on the casing bottom surface, liquid cooling board 2 is located between heat-conducting piece 3 and the support buffer structure 1, it is located heat-conducting piece 3 top and butt in heat-conducting piece 3 to fix a plurality of square battery 5 as an organic whole by the fastening frame, heat-conducting piece 3 is used for the heat transfer with square battery 5 production to liquid cooling board 2, consequently, realize the heat dissipation cooling to square battery 5, avoid square battery 5's high temperature, influence square battery 5's working property and security performance, above-mentioned heat-conducting piece 3 can be for leading structures such as thermal grease, support buffer structure 1 is the bubble cotton or have elastic structure, and liquid cooling board 2 is the common structure among the prior art, no longer describe at this repeatedly.

In order to perform all-round shock resistance and drop resistance protection on each square battery 5, a buffer structure 6 is arranged between two adjacent square batteries 5, the buffer structure 6 comprises a patterned base part, and the patterned base part is formed by once curing a liquid high polymer material on the side surface of each square battery 5 in the thickness direction. Preferably, in this embodiment, the polymer material is silicone rubber or polyurethane, and may be foamed silicone rubber, foamed polyurethane, solid silicone rubber or solid polyurethane, and the maximum compression amount of the foamed silicone rubber and the foamed polyurethane can reach 80% or more. Taking silicone rubber as an example, liquid silicone rubber generated by mixing and reacting the components of the silicone rubber is sprayed on the side surface of the square battery 5 by a three-dimensional automatic dispenser, and the liquid silicone rubber is cured and foamed to form the base. The buffer structure 6 can be formed by continuously spraying one spray head of the three-dimensional dispenser or simultaneously spraying a plurality of spray heads of the three-dimensional dispenser. The three-dimensional automatic dispenser is a common structure in the prior art, and is not described herein again.

The patterned base comprises a strip of buffer strips or buffer strips arranged at intervals, the buffer strips are in a strip-shaped structure, and in the embodiment, the cross section of each buffer strip is semi-elliptical or semi-circular, but is not limited thereto, and can also be approximately elliptical and the like. In the present embodiment, the patterned base is a hollow structure formed by the above-mentioned buffer strips, that is, the patterned base covers the side of the prismatic battery 5 but does not completely cover the side of the prismatic battery 5, so that the material can be saved and the production cost can be reduced.

Specifically, for example, the buffer structure 6 is provided on only one of two side surfaces of the adjacent two rectangular batteries 5 facing each other. When the patterned base includes one buffer bar, the patterned base is a circular ring structure, an elliptical ring structure, or a polygonal structure formed of one buffer bar. When the patterned base comprises spaced-apart buffer strips, the patterned base is a mesh structure (as shown in fig. 2), a rectangular spiral structure (as shown in fig. 3), or a serpentine structure (as shown in fig. 4) formed by the buffer strips. Taking the mesh structure as an example, the patterned base includes a plurality of first buffer strips 61 spaced along the height direction of the square battery 5 and a plurality of second buffer strips 62 spaced along the width direction of the square battery 5, in this embodiment, the extending directions of the first buffer strips 61 and the second buffer strips 62 are perpendicular to each other, and the plurality of first buffer strips 61 and the plurality of second buffer strips 62 are intersected with each other to form the patterned base with hollows. Taking a rectangular spiral structure as an example, the rectangular spiral structure shown in fig. 3 is formed by taking a first buffer strip 61 or a second buffer strip 62 as a basis, the extending directions of the first buffer strip 61 and the second buffer strip 62 are perpendicular to each other, the plurality of first buffer strips 61 and the plurality of second buffer strips 62 are alternately connected to form a patterned base portion of the spiral connecting line distribution, and the rectangular spiral structure is formed by independently spraying the first buffer strips 61 and the second buffer strips 62 by a three-dimensional dispenser. Taking the serpentine structure as an example, the serpentine structure shown in fig. 4 is based on the first buffer strips 61 arranged at intervals, and a plurality of third buffer strips 63 arranged at intervals are added, each third buffer strip 63 is connected to the end portions, close to each other, of two adjacent first buffer strips 61, at this time, the serpentine structure is formed by independently spraying the first buffer strips 61 and the third buffer strips 63 by the three-dimensional glue dispenser, of course, the serpentine structure can also be formed by continuously spraying by the three-dimensional glue dispenser, and at this time, the serpentine structure is formed by one buffer strip. The above-mentioned structures of the present embodiment can be based on the first buffer strips 61 arranged at intervals, and the number of the first buffer strips 61 is at least two. In an alternative embodiment, the extension angle between the first buffer bar 61 and the second buffer bar 62 may not be perpendicular.

However, the structure of the patterned base is not limited to this, and the patterned base may also be a mosquito-repellent incense structure, a spider-web structure, or a combination of these structures, which will not be described in detail herein. Of course, the two adjacent square batteries 5 may be provided with the buffer structures 6 on both opposite sides, but the two buffer structures 6 are different in structure, and the patterned bases of the two buffer structures 6 are offset from each other.

Take network structure as an example again, in square battery 5's direction of height or width direction, all there is the interval between two adjacent first buffering strips 61 and two second buffering strips 62, and this spaced setting can reduce the material, and reduction in production cost can not influence the antidetonation and the anti-falling protection to square battery 5 moreover, improves the security performance of square battery module.

In addition, in the present embodiment, in order to prevent the fastening plate 4 from damaging the outermost two prismatic batteries 5, the two outermost prismatic batteries 5 are also provided with the above-described cushioning structure 6 on the side facing the corresponding fastening plate 4. Of course, in other embodiments, it is also possible to avoid damage to the square batteries 5 caused by the fastening plates 4 by providing the buffer structure 6 on the side of each fastening plate 4 facing the corresponding square battery 5.

In summary, the three-dimensional dispenser is used for spraying liquid silicon rubber or polyurethane on the side surface of the square battery 5 to form a patterned base part at one time, so that the patterned base part is in one or more of a circular ring structure, a polygonal structure, a net-shaped structure, a snake-shaped structure, a rectangular spiral structure, a mosquito-repellent incense-shaped structure and a spider-net-shaped structure.

Compared with the prior art, the anti-shock and anti-falling protection device not only can provide anti-shock and anti-falling protection for the square battery 5, avoid the square battery 5 from being damaged when being collided, shocked or falling from a high place, but also can obviously save materials and reduce the production cost. In addition, compared with the prior art, the operation is simple, convenient and quick, the automation is easy to realize, and the production efficiency can be improved.

The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The square battery module is characterized by comprising a shell and a plurality of square batteries (5), wherein the square batteries (5) are arranged in the shell side by side, the shells of the square batteries (5) are hard shells, a buffer structure (6) is arranged between every two adjacent square batteries (5), each buffer structure (6) comprises a patterned base, and the patterned bases are formed by one-time curing of liquid high polymer materials on the side faces of the square batteries (5).

2. The prismatic battery module according to claim 1, wherein the polymer material is silicone rubber or polyurethane.

3. The prismatic battery module according to claim 2, wherein the patterned base comprises a strip of cushioning; or

The patterned base includes spaced-apart buffer strips.

4. The prismatic battery module according to claim 3, wherein the cross-section of the buffer bar is a semi-ellipse or semi-circle.

5. The prismatic battery module according to claim 1, wherein the patterned base is one or more of a circular ring structure, a polygonal structure, a mesh structure, a serpentine structure, a rectangular spiral structure, a mosquito coil structure, and a spider-mesh structure.

6. The square battery module according to claim 1, further comprising a fixing frame, wherein the fixing frame comprises two oppositely-arranged fastening plates (4), the two fastening plates (4) are respectively located at two sides of the arrangement direction of the plurality of square batteries (5) and are configured to clamp the plurality of square batteries (5).

7. The prismatic battery module according to claim 6, wherein the two outermost prismatic batteries (5) are provided with the cushioning structure (6) toward the corresponding fastening plate (4).

8. The prismatic battery module according to claim 6, wherein each fastening plate (4) is provided with the cushioning structure (6) on a side facing the corresponding prismatic battery (5).

9. The prismatic battery module according to claim 1, further comprising a heat conducting member (3) and a liquid cooling plate (2), wherein the heat conducting member (3) and the liquid cooling plate (2) are both located in the case, and the heat conducting member (3) is located between the prismatic battery (5) and the liquid cooling plate (2).

10. The prismatic battery module according to claim 9, further comprising a support buffer structure (1), wherein the support buffer structure (1) is disposed in the housing, and the liquid cooling plate (2) is disposed on the support buffer structure (1).