CN223843056U - Battery energy storage structure - Google Patents
Battery energy storage structureInfo
- Publication number
- CN223843056U CN223843056U CN202423318422.1U CN202423318422U CN223843056U CN 223843056 U CN223843056 U CN 223843056U CN 202423318422 U CN202423318422 U CN 202423318422U CN 223843056 U CN223843056 U CN 223843056U
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- China
- Prior art keywords
- plate
- liquid cooling
- cooling plate
- energy storage
- battery energy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
The utility model relates to a battery energy storage structure which comprises a liquid cooling plate and is characterized in that connecting pieces are respectively arranged on the peripheral edges of two sides of the liquid cooling plate, each connecting piece extends along the length direction of the liquid cooling plate, each connecting piece is of a double-layer structure and is provided with a cavity, a separating piece is arranged in the cavity, the peripheral edge of the separating piece is propped against the inner wall of the cavity to separate the cavity into at least two connecting spaces, and compared with the prior art, the battery energy storage structure has the advantages that the connecting piece is used for supporting the liquid cooling plate, the connecting mode of welding a traditional frame and the liquid cooling plate by means of rivet nuts or rivets is omitted, the production process is greatly simplified, the primary yield is improved, and meanwhile, different connecting spaces are formed by the double-layer structure of the connecting pieces, and interference phenomenon can not occur between the reinforcing plate or the bottom guard plate and the liquid cooling plate during connection.
Description
Technical Field
The utility model relates to the field of energy storage batteries, in particular to a battery energy storage box structure.
Background
With the rapid development of new energy technology, battery energy storage systems are widely used in the fields of power grid energy storage, new energy storage, mobile energy storage, industrial energy storage and the like. The traditional battery energy storage box body adopts a mode of welding connection between a frame and a liquid cooling plate, such as a box body under a battery pack, a battery pack and a vehicle disclosed in China patent publication No. CN217788659U, which discloses the box body under the battery pack, which comprises a frame which surrounds and forms an annular structure and a liquid cooling plate with an open lower end for sealing the frame, wherein the liquid cooling plate is fixed with the frame, a similar structure can refer to an integrated liquid cooling aluminum alloy energy storage battery box disclosed in CN216413153U, the box body comprises a box body frame and a cold liquid bottom plate, the box body frame is welded into a whole by four side plates, the box body frame is connected with the cold liquid bottom plate through laser welding or friction stir welding, and the connection mode of the frame and the liquid cooling plate mainly adopts an FDS (rotary tapping and riveting) process or a welding process, so that the defects of low primary yield, difficult repairing due to sealing failure, difficult capacity lifting and the like exist, and the requirement of mass production cannot be met. For this reason, further improvements are required.
Disclosure of utility model
The utility model aims to solve the technical problem of providing a battery energy storage structure capable of improving primary yield.
The battery energy storage structure comprises a liquid cooling plate and is characterized in that connecting pieces are respectively arranged on the peripheral edges of two sides of the liquid cooling plate, each connecting piece extends along the length direction of the liquid cooling plate, each connecting piece is of a double-layer structure and is provided with a cavity, a separating piece is also arranged in the cavity, the peripheral edge of the separating piece abuts against the inner wall of the cavity to separate the cavity into at least two connecting spaces, and fasteners for correspondingly connecting a reinforcing plate or a bottom guard plate to the position required by the liquid cooling body are respectively arranged in each connecting space.
In order to achieve a non-interfering arrangement between the reinforcement plate and the bottom plate when the latter are mounted, the hollow space is divided into relatively independent connecting spaces by means of a partition, preferably in the following manner:
The partition piece is a vertical partition plate extending along the vertical direction of the length of the liquid cooling plate, and the cavity is divided into at least two connecting spaces distributed along the width direction of the liquid cooling plate. Because the bottom guard plate needs to be arranged above the liquid cooling plate and the reinforcing plate needs to be arranged below the liquid cooling plate, the reinforcing plate and the bottom guard plate can be mutually not interfered when being installed by utilizing different connecting spaces.
Further, each of the double-layered structures of the connecting members is composed of an upper plate and a lower plate, and the vertical partition is provided with two, and the connecting space is divided into a first connecting space located at the outside and a second connecting space located at the inside correspondingly, and the bottom guard plate is fixedly connected with the liquid cooling plate by means of the fastener corresponding to the first connecting space on the upper plate, and simultaneously, the reinforcing plate is fixedly connected with the liquid cooling plate by means of the fastener corresponding to the second connecting space on the lower plate. As described above, when the bottom guard plate and the reinforcing plate are mounted, different connection spaces are required, and therefore, the reinforcing plate and the bottom guard plate can be mounted in space, that is, on the upper layer and the lower layer, separately by the double-layer structure of the connecting piece, that is, the upper layer and the lower layer, and simultaneously, the reinforcing plate and the bottom guard plate can be mounted separately on the inner side and the outer side by using the first connection space and the second connection space staggered in width relative to the liquid cooling plate.
In order to better connect the reinforcing plate with the lower plate of the connecting piece, preferably, the lower plate is provided with a first step which gradually ascends from the first connecting space to the direction where the second connecting space is located, and correspondingly, the end part of the reinforcing plate is also provided with a second step matched with the first step. The first step and the second step are arranged in the mode that firstly, the first step gradually ascends from the first connecting space to the second connecting space, the problem that the lower layer plate of the connecting piece is not flush with the lower layer plate due to the thickness factor of the reinforcing plate can be solved by utilizing the height difference between the step and the outer side end of the lower layer plate, and secondly, dislocation can not occur during connection between the first step and the second step due to the matching between the steps, and connection tightness of the ends of the first step and the second step can be enhanced.
In order to improve the overall strength of the battery storage case, it is preferable that the reinforcing plate includes at least two first reinforcing plates disposed along a length direction of the liquid cooling plate and at least two second reinforcing plates disposed along a width direction of the liquid cooling plate. The first reinforcing plate and the second reinforcing plate can be members with the same structure, and can also be members with different structures adaptively according to different setting positions, and the strength of the whole battery energy storage box can be better improved through reinforcing the liquid cooling plate in the length direction and the width direction.
Further, a mounting member for mounting the battery module is provided on the upper surface of the bottom guard plate. Because this battery energy storage structure has cancelled the box frame in the traditional sense, need have corresponding structure for the installation of battery module for this, consequently, the installed part then has played corresponding power supply Chi Mozu and has installed the effect on the backplate at the bottom.
Further, two mounting pieces are arranged at intervals along the length direction of the liquid cooling plate, and each mounting piece is of a strip-shaped structure extending along the width direction of the liquid cooling plate. The strip-shaped structure can be better suitable for a flat battery module.
Further, a cooling channel for guiding cooling liquid is arranged on the liquid cooling plate, and an interface for flowing external cooling liquid into and/or out of the cooling channel is arranged on the bottom guard plate. The arrangement position of the interface is respectively communicated with the inflow port and/or the outflow port of the cooling channel so as to provide a cold source for the liquid cooling plate and accelerate heat exchange between the battery modules, thereby improving the cooling effect.
In order to replace the conventional welding connection method, preferably, the fastener corresponding to the first connection space and fixedly connecting the bottom guard plate and the liquid cooling plate is a rivet nut, and the fastener corresponding to the second connection space and fixedly connecting the reinforcing plate and the liquid cooling plate is a rivet. Therefore, the fastener is selected as the rivet nut or the rivet, and the whole connection of the battery energy storage structure can adopt the rivet and riveting mode, so that the traditional welding connection mode is replaced, and the technical defects of low primary yield, difficult sealing failure repair and the like caused by welding are avoided.
Compared with the prior art, the structure of the utility model has the advantages that the liquid cooling plate is supported by the connecting piece and the connecting mode of the rivet nut or the rivet is adopted, the traditional connecting mode of welding the frame and the liquid cooling plate is cancelled, the production process is greatly simplified, the primary yield is improved, and meanwhile, different connecting spaces are formed by the double-layer structure of the connecting piece and the separating piece, so that the interference phenomenon can not occur between the reinforcing plate or the bottom guard plate and the liquid cooling plate during the connection.
Drawings
Fig. 1 is a schematic structural diagram of a battery energy storage structure according to an embodiment of the present utility model;
FIG. 2 is a schematic view of a battery energy storage structure according to another embodiment of the present utility model;
FIG. 3 is a schematic diagram of an exploded view of a battery energy storage structure according to an embodiment of the present utility model;
FIG. 4 is a schematic structural view of a connecting member according to an embodiment of the present utility model;
FIG. 5 is a schematic view of a partially enlarged structure of a connecting member and a reinforcing plate according to an embodiment of the present utility model;
FIG. 6 is an enlarged schematic view of the second step of the reinforcing plate according to the embodiment of the present utility model;
Fig. 7 is a schematic diagram of a battery energy storage structure with a battery module according to an embodiment of the utility model.
Detailed Description
The utility model is described in further detail below with reference to the embodiments of the drawings.
Fig. 1 to 7 show preferred embodiments of the present utility model. The battery energy storage structure in this embodiment includes a liquid cooling plate 1, and connecting pieces 2 are respectively disposed on two side peripheries of the liquid cooling plate 1, each connecting piece 2 extends along a length direction of the liquid cooling plate 1, each connecting piece 2 is a double-layer structure and is formed with a cavity 21, a partition piece 3 is further disposed in the cavity 21, wherein edges of the periphery of the partition piece 3 are abutted against an inner wall of the cavity 21 to partition the cavity 21 into at least two connecting spaces, and fasteners for correspondingly connecting the reinforcing plate 4 or the bottom guard plate 5 to a required position of the liquid cooling plate 1 are respectively disposed in each connecting space. The structure of the battery energy storage structure adopts a connecting mode that the liquid cooling plate 1 is supported by the connecting piece 2 and is connected with the liquid cooling plate 1 by means of the rivet nut 6 or the rivet 7, the traditional connecting mode that the frame and the liquid cooling plate 1 are welded is omitted, the production process is greatly simplified, the primary yield is improved, meanwhile, different connecting spaces are formed by utilizing the double-layer structure of the connecting piece 2 and the separating piece 3, and therefore interference phenomenon can not occur between the reinforcing plate 4 or the bottom guard plate 5 and the liquid cooling plate 1 during connection.
Specifically, the partition 3 of the present embodiment is a vertical partition extending in the vertical direction along the length of the liquid cooling plate 1, and the cavity 21 is partitioned into at least two connection spaces distributed in the width direction of the liquid cooling plate 1. Since the bottom shield 5 is disposed above the liquid cooling plate 1 and the reinforcing plate 4 is disposed below the liquid cooling plate 1 during installation, two separate connecting spaces are necessary, and correspondingly, reference is made to the figure, the double-layered structure of each connecting member 2 is composed of an upper plate 24 and a lower plate 25, and the vertical partition is provided with two connecting spaces respectively divided into a first connecting space 22 located at the outer side and a second connecting space 23 located at the inner side, and the bottom shield 5 is fastened to the liquid cooling plate 1 by means of the fastener corresponding to the first connecting space 22 on the upper plate 24, preferably a rivet nut 6, while the reinforcing plate 4 is fastened to the liquid cooling plate 1 by means of the fastener corresponding to the second connecting space 23 on the lower plate 25, preferably a rivet 7, instead of the conventional welding connection. As described above, when the bottom shield 5 and the reinforcing plate 4 are mounted, different connection spaces are used, and therefore, the reinforcing plate 4 and the bottom shield 5 can be mounted in space, that is, in upper and lower layers, by the double-layered structure of the connector 2, that is, the upper layer 24 and the lower layer 25, and the reinforcing plate 4 and the bottom shield 5 can be mounted in space, that is, in inner and outer sides, by using the first connection space 22 and the second connection space 23 which are offset in width with respect to the liquid cooling plate 1. Of course, openings for connecting the rivet 7 or the rivet nut 6 need to be formed in the upper plate 24 and the lower plate 25 of the connecting piece 2 corresponding to the first connecting space 22 and the second connecting space 23.
Of course, in order to enhance the strength of the battery storage case as a whole, the reinforcing plate 4 of the present embodiment includes at least two first reinforcing plates 42 arranged along the length direction of the liquid cooling plate 1 and at least two second reinforcing plates 43 arranged along the width direction of the liquid cooling plate 1. The first reinforcing plates 42 and the second reinforcing plates 43 may be members with the same structure, or may have different structures adaptively according to different arrangement positions, so that the strength of the whole battery storage box can be better improved by reinforcing the liquid cooling plate 1 in the length and width directions, the first reinforcing plates 42 of the embodiment are provided with five reinforcing plates, the second reinforcing plates 43 are provided with three reinforcing plates, and in order to better connect the first reinforcing plates 42 located at two ends in the length direction with the lower plate 25 of the connecting member 2, the lower plate 25 has a special design, that is, the lower plate 25 has a first step 251 gradually ascending from the first connecting space 22 to the second connecting space 23, and correspondingly, the end 251 of the first reinforcing plate 42 located at two ends in the length direction is also provided with a second step 41 matched with the first step. If there is no matching design of the first step 251 and the second step 41, there is a possibility that the problem of non-alignment with the lower plate 25 of the connector 2 occurs due to the thickness factor of the reinforcing plate 4 itself, and the first step 251 gradually goes upward from the first connecting space 22 to the second connecting space 23, so that the problem of non-alignment can be compensated by utilizing the height difference between the step and the lower plate 25 corresponding to the outer side end of the first connecting space 22, and in addition, due to the matching between the steps in the first step 251 and the second step 41, the connection between the two can be reinforced without dislocation, and the connection tightness between the two ends can be reinforced.
As shown in the drawing, the liquid cooling plate 1 of this embodiment is provided with a cooling channel 11 for guiding cooling liquid, and the bottom guard plate 5 is provided with two interfaces 50 for flowing external cooling liquid into and out of the cooling channel 11, and the two interfaces 50 are arranged at positions corresponding to the inflow port and the outflow port of the cooling channel 11 respectively, and can provide a cold source for the liquid cooling plate 1 to accelerate heat exchange between the battery modules B, so as to improve the cooling effect. Finally, in order to mount the battery module B, a mount 51 for mounting the battery module B is provided on the upper surface of the bottom cover 5. Because this battery energy storage structure has cancelled the box frame in the traditional sense, need have corresponding structure for battery module B's installation for this, consequently, installed part 51 then has played corresponding effect of battery module B's installation on backplate 5. Wherein, the mounting pieces 51 are provided with two and are arranged at intervals along the length direction of the liquid cooling plate 1, each mounting piece 51 is in a strip-shaped structure extending along the width direction of the liquid cooling plate 1, and the strip-shaped structure can be better adapted to the flat battery module B.
In summary, in the battery energy storage structure of the embodiment, the two side peripheries of the liquid cooling plate 1 are respectively provided with the connecting pieces 2 with a double-layer structure, the connecting pieces 2 have the dual-purpose function, namely, the connecting pieces 2 replace the traditional frame structure, and are respectively connected with the reinforcing plates 4 and the bottom protection plates 5 due to the two connecting spaces formed by the connecting pieces 2, and as the bottom protection plates 5 need to be completely covered on the connecting pieces 2 positioned on the two sides, the specific installation process is that a, the first reinforcing plates 42 and the second reinforcing plates 43 positioned on the two ends are connected on the lower layer plates 25 corresponding to the second connecting spaces 23 of the connecting pieces 2 in a riveting mode by rivets 7, B, the second reinforcing plates 43 positioned in the middle are connected on the first reinforcing plates 42 positioned on the two ends in a riveting mode by rivets 7, c, the bottom protection plates 5 are connected on the upper layer plates 24 corresponding to the first connecting spaces 22 of the connecting pieces 2 by the pull nuts 6, d, and finally, the battery modules B are installed on the two mounting plates 52, and the mounting structure of the battery modules can be well matched with the strip-shaped mounting structure in a flat shape and the extending direction of the mounting plate 53.
Claims (9)
1. The battery energy storage structure comprises a liquid cooling plate (1) and is characterized in that connecting pieces (2) are respectively arranged on the peripheries of two sides of the liquid cooling plate (1), each connecting piece (2) extends along the length direction of the liquid cooling plate (1), each connecting piece (2) is of a double-layer structure and is provided with a cavity (21), a separating piece (3) is further arranged in the cavity (21), the periphery of the separating piece (3) abuts against the inner wall of the cavity (21) to separate the cavity (21) into at least two connecting spaces, and fasteners which correspondingly connect a reinforcing plate (4) or a bottom guard plate (5) to the position required by the liquid cooling plate (1) are respectively arranged in each connecting space.
2. The battery energy storage structure according to claim 1, wherein the partition member (3) is a vertical partition plate extending in a direction perpendicular to a length of the liquid cooling plate (1), and the cavity (21) is partitioned into at least two connection spaces distributed in a width direction of the liquid cooling plate (1).
3. The battery energy storage structure according to claim 2, characterized in that the double-layer structure of each connecting piece (2) is composed of an upper plate (24) and a lower plate (25), and the vertical separator is provided with two, respectively, connecting spaces are divided into a first connecting space (22) located on the outer side and a second connecting space (23) located on the inner side, and the bottom plate (5) is fastened and connected with the liquid cooling plate (1) by means of the fastening piece corresponding to the first connecting space (22) on the upper plate (24), and the reinforcing plate (4) is fastened and connected with the liquid cooling plate (1) by means of the fastening piece corresponding to the second connecting space (23) on the lower plate (25).
4. The battery energy storage structure according to claim 3, wherein the lower plate (25) has a first step (251) gradually ascending from the first connecting space (22) to the second connecting space (23), and correspondingly, the end of the reinforcing plate (4) is also provided with a second step (41) matching the first step (251).
5. The battery energy storage structure according to claim 4, wherein the reinforcing plate (4) includes at least two first reinforcing plates (42) arranged along a length direction of the liquid cooling plate (1) and at least two second reinforcing plates (43) arranged along a width direction of the liquid cooling plate (1).
6. The battery energy storage structure according to any one of claims 1 to 5, wherein a mounting member (51) for mounting the battery module (B) is provided on the upper surface of the bottom protection plate (5).
7. The battery energy storage structure according to claim 6, wherein two mounting members (51) are provided and are arranged at intervals along the longitudinal direction of the liquid cooling plate (1), and each mounting member (51) has a strip-like structure extending along the width direction of the liquid cooling plate (1).
8. The battery energy storage structure according to claim 7, wherein the liquid cooling plate (1) is provided with a cooling channel (11) for guiding cooling liquid, and an interface (50) for external cooling liquid to flow into and/or out of the cooling channel (11) is provided on the bottom guard plate (5).
9. The battery energy storage structure according to any one of claims 3 to 5, wherein a fastener corresponding to the first connecting space (22) and fastening the bottom protection plate (5) to the liquid cooling plate (1) is a rivet nut (6), and a fastener corresponding to the second connecting space (23) and fastening the reinforcing plate (4) to the liquid cooling plate (1) is a rivet (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202423318422.1U CN223843056U (en) | 2024-12-31 | 2024-12-31 | Battery energy storage structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202423318422.1U CN223843056U (en) | 2024-12-31 | 2024-12-31 | Battery energy storage structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223843056U true CN223843056U (en) | 2026-01-27 |
Family
ID=98516317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202423318422.1U Active CN223843056U (en) | 2024-12-31 | 2024-12-31 | Battery energy storage structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223843056U (en) |
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2024
- 2024-12-31 CN CN202423318422.1U patent/CN223843056U/en active Active
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