CN217522143U

CN217522143U - Battery bottom support and battery Pack system

Info

Publication number: CN217522143U
Application number: CN202220401276.0U
Authority: CN
Inventors: 项海锋; 尚晓丽; 万梓; 朱雷; 孙昉哲
Original assignee: Zhejiang Nandu Energy Internet Co ltd; Zhejiang Narada Power Source Co Ltd
Current assignee: Zhejiang Nandu Energy Technology Co ltd; Zhejiang Narada Power Source Co Ltd
Priority date: 2022-02-24
Filing date: 2022-02-24
Publication date: 2022-09-30
Anticipated expiration: 2032-02-24

Abstract

The utility model relates to the field of energy storage devices, and discloses a battery bottom support, which comprises a bottom plate (1) and side beams (2) arranged on the bottom plate (1), and is characterized in that the bottom plate (1) is provided with at least one mounting groove (4) which is sunken downwards, and a space is arranged between each side beam (2) and the corresponding mounting groove (4) to form a heat dissipation gap; also discloses a battery Pack system, which comprises the base support. The bottom of the single battery pack is embedded into the mounting groove, the four inner walls of the mounting groove are all attached to the single battery pack so as to exchange heat with the heat inside the single battery pack, and the four inner walls and the bottom wall of the mounting groove can respectively limit the degrees of freedom of the single battery pack in the front, the back, the left, the right and the lower five directions, so that a semi-open space is formed, and the heat dissipation is facilitated because the four inner walls and the bottom wall are not closed; the middle panel, the side board cooperate the bottom plate and the side edge beam on the bottom plate to fix the battery Pack, simplify the battery Pack and organize the defect that the structural component is various.

Description

Battery bottom support and battery Pack system

Technical Field

The utility model relates to an energy memory field especially relates to a battery collet and battery Pack system.

Background

On the premise of an electrical control system with the same strategy, the battery Pack group technology key control points comprise: 1. the system safety is determined by the electric control and the performance of the single battery, and when the electric control system strategy is consistent, the working temperature of the single battery is a key factor influencing the performance of the single battery; 2. the grouping efficiency includes the number of grouped components and the grouping process.

The battery Pack system has the advantages that the battery Pack system is multiple in grouped structure parts, serious in cost sharing, complex in assembly process and difficult to realize automation; and the single battery pack is wrapped layer by layer, the single batteries are assembled in a closed manner, the internal temperature is not easy to transfer, and the performance and the service life of the single batteries are seriously influenced. The existing box-type external packing structure (box cover and box body structure) is generally adopted to assemble and fix the single battery pack, auxiliary components such as end plates, bottom plates, panels and the like need to be additionally arranged, the structure is complex, the cost is increased, and the automatic assembly process is not suitable for being adopted.

Disclosure of Invention

The utility model provides a battery bottom support which can conduct heat conduction to the heat in the single battery Pack, aiming at the defects that the internal temperature of the single battery Pack is not easy to be transferred, and the automation of the battery Pack system is not realized due to the various parts; and the battery Pack system is provided, the parts are simplified, and automatic assembly is realized.

In order to solve the technical problem, the utility model discloses a following technical scheme can solve:

the battery bottom support comprises a bottom plate and side beams arranged on the bottom plate, wherein the bottom plate is provided with at least one mounting groove sunken downwards, and a distance is reserved between each side beam and the corresponding mounting groove to form a heat dissipation gap. In the bottom embedding mounting groove of battery cell group, four inner walls of mounting groove all laminated with battery cell group to carry out the heat exchange to the inside heat of battery cell group, and four inner walls and a diapire of mounting groove can restrict the degree of freedom of five directions before, back, left and right, lower battery cell group respectively, form a semi-open space, and non-closed is favorable to the heat dissipation.

Furthermore, the two side beams are respectively arranged at two opposite side ends of the bottom plate.

Furthermore, the floor plate also comprises at least one reinforcing beam arranged on the floor plate, and the reinforcing beam divides the floor plate into at least two areas; every region all is provided with a mounting groove, stiffening beam and the laminating of monomer group battery. Heat exchange is performed to the internal heat of the unit battery pack.

Furthermore, a first flow guide hole communicated with the heat dissipation gap is formed in the reinforcing beam. The first flow guide holes are used for communicating two adjacent heat dissipation gaps so as to exchange heat inside the single battery pack.

Furthermore, a second flow guide hole communicated with the heat dissipation gap is formed in the side beam. The second flow guide hole can be communicated with external air flow, and forms an internal air convection channel of the battery Pack system with the first flow guide hole and the heat dissipation gap so as to accelerate heat exchange of the single battery Pack in the battery Pack system.

Further, an inner wall of the mounting groove is a part of the reinforcing beam.

Further, the first guide holes do not overlap the unit battery pack.

Further, the total area of all the second guiding holes on the same side beam occupies more than the area 2/5 of the same side beam.

The utility model also provides a battery Pack system, including foretell collet.

Further, the battery pack support further comprises a single battery pack arranged on the mounting groove of the support, a middle panel positioned between two adjacent single battery packs, and a side panel positioned above the side face of the single battery pack. The side panels, the middle panel and the bottom support are locked to fix the single battery pack.

Further, the middle panel comprises a transverse plate and a vertical plate, and the vertical plate is located between the two adjacent single battery packs. The vertical plate is positioned above the stiffening beam and is attached to the stiffening beam.

Furthermore, the vertical plate is attached to the single battery pack. Heat is conducted together with the reinforcing beam.

The utility model discloses owing to adopted above technical scheme, have apparent technological effect:

be equipped with the mounting groove on the bottom plate, the battery pack embedding mounting groove, four inner walls of mounting groove all with the laminating of battery pack to carry out the heat exchange to the inside heat of battery pack, and four inner walls and a diapire of mounting groove can restrict the degree of freedom of five directions before, after, left and right, lower battery pack respectively, form a semi-open space, and non-closed, be favorable to the heat dissipation. The defect of closed assembly of the single battery is overcome.

And has heat dissipating gap for heat conduction. The heat dissipation gap and the second flow guide holes in the side beams on the two sides are combined with the first flow guide holes to form an internal gas convection channel of the battery Pack system, so that the heat exchange of the single battery Pack in the battery Pack system is accelerated.

Middle part panel, side board cooperation bottom plate and the side roof beam on the bottom plate are fixed the battery Pack, simplify the battery Pack and organize the defect of many parts in groups, simultaneously applicable battery Pack full automatization assembly process.

Drawings

Fig. 1 is a structural diagram of a battery Pack system according to the present invention;

FIG. 2 is an exploded view of FIG. 1;

fig. 3 is a structural diagram of the bottom bracket of the present invention.

The names of the parts indicated by the numerical references in the drawings are as follows: the device comprises a bottom plate, a side edge beam 2, a reinforcing beam 3, a mounting groove 4, a first guide hole 5, a second guide hole 6, a lug 7, a fixing hole 8, a single battery pack 9, a middle panel 10, a side panel 11, a signal acquisition panel 12, an electrical unit 13, a bus aluminum bar 14, a serial copper bar 15, a first flanging 16, a second flanging and a groove 18.

Detailed Description

Embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

Example 1

As shown in fig. 1-3, the battery tray, including the bottom plate 1 that is used for accepting the battery pack 9, set up on bottom plate 1 and relative both sides boundary beam 2, hug closely the stiffening beam 3 of battery pack 9, in this embodiment, stiffening beam 3 is one, separate into two regions with bottom plate 1, every region all has undercut's mounting groove 4, mounting groove 4 has four inner walls and a diapire, battery pack 9 imbeds in mounting groove 4, battery pack 9 is all laminated to four inner walls and a diapire, before battery pack 9, after, left and right, the degree of freedom of five directions down limits, and battery pack 9's inside heat carries out the heat exchange through four inner walls of mounting groove 4 and a diapire. An inner wall of the mounting groove 4 is a part of the reinforcing beam 3, i.e. the bottom side of the reinforcing beam 3 is a side wall of the mounting groove 4. In this embodiment, the reinforcing beam 3 is a single piece and is located in the middle of the bottom plate 1, the bottom plate 1 has two mounting grooves 4, the two mounting grooves 4 are symmetrically arranged along the reinforcing beam 3, and two battery packs 9 can be mounted on one bottom plate 1. The mounting groove 4 is spaced apart from the side frame 2 to form a heat dissipation gap. The mounting groove 4 is formed by the downward depression of the bottom plate 1, so that the deformation resistance of the bottom plate 1 can be improved, and the bearing load of the bottom support is increased.

The reinforcing beam 3 is closely attached to the bottom end of the installed cell stack 9, and exchanges heat with the internal heat of the cell stack 9. The two sides of the stiffening beam 3 along the length direction are respectively provided with a first flow guide hole 5 which is arranged along the longitudinal direction, and the air flow at the end part of the single battery pack 9 carries out heat exchange through the first flow guide holes 5; first water conservancy diversion hole 5 is located the interval between mounting groove 4 and the side roof beam 2 on the transverse direction, it does not have the overlap with mounting groove 4 on vertical and horizontal, promptly monomer group battery 9 place in mounting groove 4 back not with first water conservancy diversion hole 5 overlap, monomer group battery 9 can not cover first water conservancy diversion hole 5, the heat exchange effect in the interval space of being convenient for allows the 9 terminal surface heat exchanges of monomer group battery, plays the samming effect, improves the radiating effect. The provision of the reinforcing beam 3 also improves the resistance to deformation of the floor 1.

All be equipped with two second water conservancy diversion holes 6 that set up side by side along 2 length direction of side roof beam on the roof beam 2 of side, two second water conservancy diversion holes 6 correspond with two mounting grooves 4 respectively, and second water conservancy diversion hole 6 on the roof beam 2 of both sides combines first water conservancy diversion hole 5, forms the inside gaseous convection current passageway of battery Pack system, is favorable to accelerating the heat exchange of battery Pack 9 in the battery Pack system. The second flow guide holes 6 can eliminate airflow blockage on two end faces of the single battery pack 9, so that the airflow can flow along the two end faces of the single battery pack 9 conveniently, and the temperature of the two end faces of the single battery pack 9 is reduced to a greater extent. Under the condition of ensuring that the structural strength of the main bearing body (bottom support) is enough, the size of the second flow guide hole 6 can be made as large as possible so as to reduce the airflow blockage of the single battery pack 9. The heat dissipation gap formed between the mounting groove 4 and the side beam 2 is opened at two ends through the second diversion hole 6, and the heat dissipation gaps at two sides of the reinforcing beam 3 are communicated for heat dissipation through the first diversion hole 5.

The diapire undercut of mounting groove 4 has the recess 18 of the rectangular shape of a plurality of, makes the diapire of mounting groove 4 be three-dimensional spatial structure, is favorable to improving the radiating effect of diapire.

Wherein both sides end of one side boundary beam 2 all has a lug 7, is equipped with fixed orifices 8 on the lug 7, and fixed orifices 8 set up along the central line bilateral symmetry of side boundary beam 2, realizes through bolt cooperation fixed orifices 8 that battery Pack system fixes on the energy storage rack.

Example 2

As shown in fig. 1-2, the battery Pack system includes a base support as in embodiment 1, a single battery Pack 9 disposed on the mounting groove 4 of the base support, a T-shaped middle panel 10, two side panels 11, two signal acquisition panels 12, an electrical unit 13, a bus aluminum bar group, and a serial copper bar 15.

The upper end face of the side edge beam 2 is matched with the upper end face of the single battery Pack 9, and two side face plates 11 are respectively arranged on two side edges of the Pack system and are locked with the side edge beam 2 through screws along two end parts of the length direction. Middle part panel 10 includes diaphragm and riser, and the terminal surface laminating under 3 up end of stiffening beam and the riser of middle part panel 10, the riser of middle part panel 10 be used for separating two adjacent monomer group battery 9 and carry out heat-conduction with the laminating of monomer group battery 9, through the fix with screw between stiffening beam 3 and the middle part panel 10. The side beams 2 and the side panels 11 are matched and locked, and the reinforcing beam 3 and the middle panel 10 are matched to limit the upward freedom degree of the single battery pack 9, so that the single battery pack 9 is fixed.

The aluminum busbar group includes two aluminum busbars 14 that converge, and every battery cell group 9 is equipped with a aluminum busbar 14 that converges, and two aluminum busbars 14 that converge set up respectively in two side boards 11 below, and aluminum busbar 14 that converge has first turn-ups 16 along length direction's one end, all is equipped with the screw on the first turn-ups 16, and first turn-ups 16 equally divide and laminate respectively in 2 outsides of same boundary beam to pass through the fix with screw.

Two busbar aluminum bars 14 are connected to series connection copper bar 15, specifically for series connection copper bar 15 all has second turn-ups 17 along length direction's both ends, and two second turn-ups 17 laminating two busbar aluminum bars 14 just pass through the fix with screw.

And signal acquisition plates 12 are arranged below the bus aluminum bars 14, and the signal acquisition plates 12 are arranged outside the single battery pack 9.

The electric unit 13 is mounted outside one of the side sills 2 via a side plate.

While the foregoing description shows and describes several preferred embodiments of the invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. The battery bottom support comprises a bottom plate (1) and side beams (2) arranged on the bottom plate (1), and is characterized in that at least one mounting groove (4) which is sunken downwards is formed in the bottom plate (1), and a space is formed between each side beam (2) and each mounting groove (4) to form a heat dissipation gap.

2. The battery tray according to claim 1, further comprising at least one reinforcing beam (3) disposed on the bottom plate (1), the reinforcing beam (3) dividing the bottom plate (1) into at least two regions; each area is provided with a mounting groove (4), and the reinforcing beam (3) is attached to the single battery pack (9).

3. The battery support according to claim 2, characterized in that the reinforcement beam (3) is provided with a first hole (5) for guiding the flow of heat in communication with the heat dissipation gap.

4. The battery tray as claimed in claim 1, wherein the side beams (2) are provided with second guiding holes (6) communicating with the heat dissipation gap.

5. The battery shoe according to claim 3, characterized in that the first flow guiding holes (5) do not overlap the battery cell stack (9).

6. The battery mounting according to claim 4, wherein the total area of all the second guiding holes (6) on the same side edge beam (2) is larger than the area 2/5 of the same side edge beam (2).

7. A battery Pack system comprising a tray as claimed in any one of claims 1 to 6.

8. The battery Pack system according to claim 7, further comprising a battery cell Pack (9) disposed on the mounting groove (4) of the tray, a middle panel (10) located between two adjacent battery cell packs (9), and a side panel (11) located above the side of the battery cell Pack (9).

9. The battery Pack system according to claim 8, wherein the middle panel (10) comprises a cross plate and a vertical plate, and the vertical plate is located between two adjacent unit battery packs (9).

10. The battery Pack system according to claim 9, wherein the risers are attached to the cell packs (9).