CN215816030U

CN215816030U - Annular energy storage box

Info

Publication number: CN215816030U
Application number: CN202121774123.2U
Authority: CN
Inventors: 江有强; 陈郑阳; 唐宏文; 卢伟军
Original assignee: Hubei Eve Power Co Ltd
Current assignee: Hubei Eve Power Co Ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-02-11
Anticipated expiration: 2031-07-30

Abstract

The utility model discloses an annular energy storage box which comprises a box body, a box cover, an electric core assembly and a thin film vibration fan, wherein the electric core assembly and the thin film vibration fan are arranged in the box body, the electric core assembly comprises a plurality of electric cores which are radially arranged at intervals, the electric cores are surrounded on the periphery of the thin film vibration fan, and a plurality of first heat dissipation holes are formed in the side surface of the box body. The battery cores are surrounded around the film vibration fan, and airflow generated by the film vibration fan can remove heat generated by the battery cores after passing through a gap between every two adjacent battery cores, so that a good cooling effect is achieved for the battery cores. Compared with the traditional fan, the film vibration fan has the advantages of long service life, low noise and low failure rate due to no rotating blades, and can provide more reliable guarantee for the stable operation of the annular energy storage box.

Description

Annular energy storage box

Technical Field

The utility model relates to the technical field of batteries, in particular to an annular energy storage box.

Background

At present, an energy storage box is in an important stage of development of demonstration application to commercialization, a fan for heat dissipation is generally arranged inside the existing energy storage box, and a rotating blade is used for generating airflow to bring heat generated by a battery cell in the energy storage box to the outside of the energy storage box, so that the temperature of the battery cell is kept within a normal range. Although the conventional fan is low in cost, the service life of the conventional fan is short, and the maintenance cost is increased to a certain extent. In addition, the conventional fan also generates obvious noise when in operation, so that the energy storage box cannot be installed in occasions with strict noise control.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an annular energy storage box which has the characteristics of low maintenance cost, low noise and high reliability.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides an annular energy storage box, includes box, case lid, electric core subassembly and film vibration fan, the electric core subassembly with film vibration fan all sets up inside the box, the electric core subassembly includes a plurality of electric cores that are radial interval arrangement, electric core encircles around film vibration fan, a plurality of first louvres have been seted up to the side of box.

As a preferable scheme of the annular energy storage box, the electric core assembly further comprises an upper bracket and a lower bracket, the electric core is arranged between the upper bracket and the lower bracket, the upper bracket comprises a cover plate and a first connecting column, one end of the first connecting column is vertically connected with the cover plate, the lower bracket comprises a bottom plate and a second connecting column, one end of the second connecting column is vertically connected with the bottom plate, and one end of the first connecting column, which is far away from the cover plate, is detachably connected with one end of the second connecting column, which is far away from the bottom plate.

As a preferable scheme of the annular energy storage box, one end of the first connecting column, which is far away from the cover plate, is provided with a positioning groove, one end of the second connecting column, which is far away from the bottom plate, is provided with a protruding part, and the protruding part can be inserted into the positioning groove;

or, the one end that first spliced pole kept away from the apron is equipped with the bellying, the one end that the second spliced pole was kept away from the bottom plate is equipped with positioning groove, the bellying can insert in the positioning groove.

As a preferable scheme of the annular energy storage box, the cell assembly further comprises a plurality of screws, the first connecting column and the second connecting column are both of a hollow structure, a first through hole is formed in the bottom of the positioning groove, a second through hole is formed in the protruding portion, and the screws penetrate through the first through hole and the second through hole.

As a preferable scheme of the annular energy storage box, the battery cell assembly further includes a plurality of busbars, the busbars are arranged on one side of the cover plate, which is far away from the bottom plate, and the busbars are connected with the battery cells.

As a preferred scheme of the annular energy storage box, the cover plate is provided with a plurality of riveting columns on the surface, the busbar is provided with riveting holes, the riveting columns penetrate through the riveting holes, and the busbar is fixed on the cover plate in a riveting manner.

As a preferable scheme of the annular energy storage box of the utility model, the cover plate is provided with a plurality of first mounting grooves, the bottom plate is provided with a plurality of second mounting grooves, the top of the battery cell can be inserted into the first mounting grooves, and the bottom of the battery cell can be inserted into the second mounting grooves.

As a preferable scheme of the annular energy storage box of the utility model, the bottom plate is provided with a fixing hole, the box body is provided with a threaded column, and the threaded column can penetrate through the fixing hole, so that the bottom plate is fixed on the box body by a nut screwed on the threaded column.

As a preferable scheme of the annular energy storage box, the bottom of the box body is provided with a plurality of mounting columns and a plurality of air inlet holes, the film vibration fan is fixed on the mounting columns, and the film vibration fan and the box body are spaced.

As a preferable scheme of the annular energy storage box, the annular energy storage box further comprises a battery management device, the box body is cylindrical, the box cover is detachably connected with the top of the box body, the battery management device is arranged on the box cover and is positioned in the annular energy storage box, and the box cover is provided with a plurality of second heat dissipation holes.

The utility model has the beneficial effects that:

the electric cores of the annular energy storage box are arranged in the box body at intervals in a radial mode, a gap is formed between every two adjacent electric cores, the electric cores are arranged around the film vibration fan in a surrounding mode, airflow generated by the film vibration fan can carry away heat generated by the electric cores after passing through the gap between every two adjacent electric cores, and airflow heated by the electric cores flows out through the first heat dissipation holes formed in the side wall of the box body, so that a good temperature reduction effect is achieved for the electric cores. The core component of the film vibration fan is a film, the film can vibrate up and down after being electrified, the air in a compression cavity is vibrated at a certain frequency, and the compressed air is sprayed out from a fine nozzle at a high speed to form airflow. The film vibration fan generates airflow sprayed from the periphery through vibration, so that the airflow penetrates through gaps between the battery cores and takes away heat between the battery cores, and flows out of the first heat dissipation hole in the side wall of the box body to achieve the effect of rapid heat dissipation. Because there is no rotating blade, the film vibration fan has the advantages of long service life, low noise and low failure rate, and can provide more reliable guarantee for the stable operation of the annular energy storage box.

Drawings

FIG. 1 is a perspective view of an annular energy storage tank in accordance with one embodiment of the present invention;

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

FIG. 3 is an exploded view of the electric core assembly of FIG. 2;

FIG. 4 is a cross-sectional view of the electrical core assembly of FIG. 2;

FIG. 5 is an enlarged view taken at A in FIG. 4;

FIG. 6 is a schematic view of the first connecting column and the second connecting column of FIG. 5 after separation;

FIG. 7 is a schematic view of a rivet post according to an embodiment of the present invention before deformation;

FIG. 8 is a schematic view of the rivet post of FIG. 7 after deformation;

FIG. 9 is a perspective view of the upper bracket of FIG. 3 from another angle;

FIG. 10 is a perspective view of the lower bracket of FIG. 3;

FIG. 11 is a perspective view of the case and the film vibration fan of FIG. 2 from another angle;

fig. 12 is a perspective view of the lid of fig. 2 from another angle.

In the figure:

1. a box body; 11. a first heat dissipation hole; 12. an air inlet hole; 2. a box cover; 21. a second heat dissipation hole; 22. a handle;

3. an electrical core assembly; 31. an electric core; 32. an upper bracket; 321. a cover plate; 3211. a first mounting groove; 322. a first connecting column; 3221. a positioning groove; 3222. a first through hole; 323. riveting the column; 33. a lower bracket; 331. a base plate; 3311. a second mounting groove; 3312. a fixing hole; 332. a second connecting column; 3321. a boss portion; 3322. a second through hole; 333. a nut; 34. a bus bar; 35. a screw;

4. a membrane vibration fan; 5. a threaded post; 6. mounting a column; 7. a battery management device.

Detailed Description

The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the word "over" a first feature or feature in a second feature may include the word "over" or "over" the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under" a second feature may include a first feature that is directly under and obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

As shown in fig. 1 and fig. 2, the annular energy storage box according to an embodiment of the present invention includes a box body 1, a box cover 2, an electric core assembly 3 and a thin film vibration fan 4, the box body 1 is cylindrical, the electric core assembly 3 and the thin film vibration fan 4 are both disposed inside the box body 1, the electric core assembly 3 includes a plurality of electric cores 31 radially arranged at intervals, the electric cores 31 surround the thin film vibration fan 4, a plurality of first heat dissipation holes 11 are formed in a side wall of the box body 1, the box cover 2 is detachably connected to a top of the box body 1, and the box cover 2 covers the electric core assembly 3 and the thin film vibration fan 4.

The electric core 31 of the annular energy storage box of this embodiment is radial interval arrangement in box 1 inside, has the space between two adjacent electric cores 31, because electric core 31 encircles around film vibration fan 4, the heat that electric core 31 produced is walked away to the air current that film vibration fan 4 produced through the space between two adjacent electric cores 31 back energy band, the first louvre 11 of seting up flows on the air current rethread box 1 lateral wall of being heated by electric core 31, thereby play good cooling effect to electric core 31. The membrane vibration fan 4 is different from the conventional fan in structure and working principle, the core part of the membrane vibration fan is a membrane, the membrane can vibrate up and down after being electrified, air in a compression cavity is vibrated at a certain frequency, and the air is compressed and then is sprayed out from a fine nozzle at a high speed to form airflow. The film vibration fan 4 generates airflow ejected from the periphery through vibration, so that the airflow passes through the gap between the battery cores 31 and takes away heat between the battery cores 31, and flows out of the first heat dissipation hole 11 in the side wall of the box body 1, and the effect of rapid heat dissipation is achieved. Because there are no rotating blades, the film vibration fan 4 has the advantages of long service life, low noise and low failure rate, and can provide more reliable guarantee for the stable operation of the annular energy storage box.

Further, electric core subassembly 3 still includes upper bracket 32 and lower carriage 33, and electric core 31 sets up between upper bracket 32 and lower carriage 33, can play the fixed action to electric core 31, prevents that electric core 31 from taking place the displacement in box 1, makes and keeps invariable interval between the electric core 31.

Further, as shown in fig. 3, the upper bracket 32 includes a cover plate 321 and a first connecting column 322, one end of the first connecting column 322 is vertically connected to the cover plate 321, the lower bracket 33 includes a bottom plate 331 and a second connecting column 332, one end of the second connecting column 332 is vertically connected to the bottom plate 331, and one end of the first connecting column 322, which is far away from the cover plate 321, is detachably connected to one end of the second connecting column 332, which is far away from the bottom plate 331. After the battery cell 31 is placed on the bottom plate 331, the cover plate 321 needs to be mounted on the top of the battery cell 31, and only the first connecting post 322 and the second connecting post 332 need to be assembled in place, so that the cover plate 321 is automatically mounted in place without separately aligning, and the assembly efficiency is improved. Since the upper bracket 32 and the lower bracket 33 are integrally connected, structural stability of the entire electric core assembly 3 is also achieved. After the first connection post 322 and the second connection post 332 are connected, the occupied volume is small, which not only does not hinder the heat dissipation of the battery cell 31, but also changes the airflow blown out from the film vibration fan 4 from laminar flow to turbulent flow, thereby achieving a better cooling effect on the battery cell 31.

In the embodiment shown in fig. 3, the cell assembly 3 further includes a plurality of bus bars 34, the bus bars 34 are disposed on a side of the cover plate 321 facing away from the bottom plate 331, the bus bars 34 are connected with the cells 31, and the bus bars 34 connect the cells 31 in series or in parallel. The cover 321 provides a mounting position for the bus bar 34, the bus bar 34 is mounted on the cover 321 in advance, and when the upper bracket 32 is mounted in place, the bus bar 34 and the battery cell 31 are also positioned.

As shown in fig. 4 to 6, further, a positioning groove 3221 is disposed at an end of the first connecting post 322 far from the cover plate 321, a protrusion 3321 is disposed at an end of the second connecting post 332 far from the bottom plate 331, and the protrusion 3321 can be inserted into the positioning groove 3221, so that the first connecting post 322 and the second connecting post 332 can be quickly positioned accurately, and the electric core assembly 3 has high assembly efficiency and low assembly difficulty. Of course, the first connecting post 322 may be provided with a groove structure such as the positioning groove 3221, and the second connecting post 332 may be provided with a protrusion structure such as the protrusion 3321.

In addition, the cover 321 and the bottom 331 can be respectively provided with a first connecting post 322 and a second connecting post 332. For example, two first connecting posts 322 and two second connecting posts 332 are disposed on the cover plate 321, and two first connecting posts 322 and two second connecting posts 332 are also disposed on the bottom plate 331, only by ensuring that the first connecting posts 322 and the second connecting posts 332 can be matched.

In the embodiment shown in fig. 4 to 6, the electric core assembly 3 further includes a plurality of screws 35, the first connecting post 322 and the second connecting post 332 are both hollow structures, a first through hole 3222 is disposed at the bottom of the positioning groove 3221, a second through hole 3322 is disposed on the protrusion 3321, and the screws 35 pass through the first through hole 3222 and the second through hole 3322. The screw 35 can be a self-tapping screw, without a preset threaded hole, and after the first connecting post 322 and the second connecting post 332 are installed in place, the upper bracket 32 and the lower bracket 33 can be conveniently connected into a whole by using the screw 35.

As shown in fig. 3, a plurality of riveting posts 323 are disposed on the surface of the cover 321, riveting holes (not shown) are disposed on the bus bar 34, the riveting posts 323 pass through the riveting holes, and the bus bar 34 is riveted and fixed on the cover 321. The upper and

lower brackets

32 and 33 are preferably made of high-strength plastic, and have a light weight and high structural strength. As shown in fig. 7 and 8, the bus bar 34 is fixed by hot-pressing the rivet post 323. First, the bus bar 34 is placed on the cover plate 321, the rivet column 323 on the cover plate 321 is inserted through the rivet hole on the bus bar 34, and then the rivet column 323 is hot pressed, and the rivet column 323 is deformed to be in a flat state, so that the bus bar 34 cannot be taken out from the cover plate 321. One bus bar 34 is fixed by two caulking posts 323, and the bus bar 34 is prevented from moving on the cover plate 321.

As shown in fig. 9 and 10, a plurality of first mounting grooves 3211 are formed in the cover plate 321, a plurality of second mounting grooves 3311 are formed in the bottom plate 331, the top of each of the battery cells 31 can be inserted into the first mounting groove 3211, and the bottom of each of the battery cells 31 can be inserted into the second mounting grooves 3311, so that each of the battery cells 31 can be fixed at a specific position, the distance between the battery cells 31 can be kept unchanged all the time, and meanwhile, the battery cells 31 can be positioned and mounted conveniently.

As shown in fig. 10, a fixing hole 3312 is formed on the bottom plate 331, and a screw post 5 is formed on the case 1, and the screw post 5 can pass through the fixing hole 3312, so that the bottom plate 331 is fixed to the case 1 by a nut 333 screwed on the screw post 5. Because the edge of the bottom plate 331 is circular, the bottom of the box 1 is also circular, and the bottom plate 331 needs to be fixed on the box 1 to prevent the electric core assembly 3 from moving inside the box 1. In the embodiment shown in fig. 10, the number of the fixing holes 3312, the nuts 333, and the threaded posts 5 is four, which provides a good fixing effect for the bottom plate 331.

As shown in fig. 11, the film vibration fan 4 is fixed on the box body 1, the bottom of the box body 1 is provided with a plurality of mounting posts 6 and a plurality of air inlet holes 12, and threaded holes can be arranged in the mounting posts 6, so that the film vibration fan 4 is fixed on the mounting posts 6, and the film vibration fan 4 is spaced from the box body 1. The outside air can enter the box body 1 from the air inlet 12, and a certain space is reserved between the film vibration fan 4 and the box body 1, so that the film vibration fan 4 can conveniently suck air, and sufficient outside air is guaranteed to be supplied to the film vibration fan 4 to cool the battery cell 31.

As shown in fig. 2 and 12, the annular energy storage box further includes a battery management device 7, the battery management device 7 is disposed on the box cover 2 and located in the annular energy storage box, and the box cover 2 is provided with a plurality of second heat dissipation holes 21. The battery management device 7 is connected to the bus bar 34, and is configured to collect various status parameters of the battery cell 31, and in order to achieve good heat dissipation of the battery management device 7, the case cover 2 is provided with a plurality of second heat dissipation holes 21 for exhausting air heated by the battery management device 7.

The battery management device 7 forms a plurality of interfaces on the outer surface of the box cover 2 for inserting corresponding cables to monitor the operation state of the annular energy storage box. The box cover 2 is also provided with a handle 22, which is convenient for the installation and the disassembly of the box cover 2.

Reference throughout this specification to the description of the terms "preferred," "further," or the like, as used in describing preferred embodiments of the present invention, means that a particular feature, structure, material, or characteristic described in connection with the example or illustration is included in at least one example or illustration of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above examples are only intended to illustrate the details of the utility model, which is not limited to the above details, i.e. it is not intended that the utility model must be implemented in such detail. It should be understood by those skilled in the art that any modification of the present invention, equivalent substitutions of the raw materials of the product of the present invention, addition of auxiliary components, selection of specific modes, etc., are within the scope and disclosure of the present invention.

Claims

1. The utility model provides an annular energy storage box, its characterized in that, includes box, case lid, electric core subassembly and film vibration fan, the electric core subassembly with film vibration fan all sets up inside the box, the electric core subassembly includes a plurality of electric cores that are radial interval arrangement, electric core encircles around film vibration fan, a plurality of first louvres have been seted up to the side of box.

2. The annular energy storage box of claim 1, wherein the cell assembly further comprises an upper bracket and a lower bracket, the cell is disposed between the upper bracket and the lower bracket, the upper bracket comprises a cover plate and a first connecting column, one end of the first connecting column is perpendicularly connected to the cover plate, the lower bracket comprises a bottom plate and a second connecting column, one end of the second connecting column is perpendicularly connected to the bottom plate, and one end of the first connecting column, which is far away from the cover plate, is detachably connected to one end of the second connecting column, which is far away from the bottom plate.

3. The annular energy storage box of claim 2, wherein one end of the first connecting column away from the cover plate is provided with a positioning groove, one end of the second connecting column away from the bottom plate is provided with a convex part, and the convex part can be inserted into the positioning groove;

4. The annular energy storage box of claim 3, wherein the cell assembly further comprises a plurality of screws, the first connecting column and the second connecting column are both hollow structures, a first through hole is formed in the bottom of the positioning groove, a second through hole is formed in the protruding portion, and the screws penetrate through the first through hole and the second through hole.

5. The annular energy storage box of claim 2, wherein the cell assembly further comprises a plurality of busbars, the busbars are arranged on one side of the cover plate, which faces away from the bottom plate, and the busbars are connected with the cells.

6. The annular energy storage box of claim 5, wherein the cover plate is provided with a plurality of riveting columns on the surface, the bus bar is provided with riveting holes, the riveting columns penetrate through the riveting holes, and the bus bar is riveted and fixed on the cover plate.

7. The annular energy storage box of claim 2, wherein the cover plate is provided with a plurality of first mounting grooves, the bottom plate is provided with a plurality of second mounting grooves, the top of the battery cell can be inserted into the first mounting grooves, and the bottom of the battery cell can be inserted into the second mounting grooves.

8. The annular energy storage box of claim 2, wherein the bottom plate is provided with a fixing hole, the box body is provided with a threaded column, and the threaded column can penetrate through the fixing hole, so that the bottom plate is fixed on the box body by a nut screwed on the threaded column.

9. The annular energy storage box of claim 1, wherein the bottom of the box body is provided with a plurality of mounting posts and a plurality of air inlet holes, the membrane vibration fan is fixed on the mounting posts, and the membrane vibration fan is spaced from the box body.

10. The annular energy storage box according to any one of claims 1 to 9, further comprising a battery management device, wherein the box body is cylindrical, the box cover is detachably connected with the top of the box body, the battery management device is arranged on the box cover and located inside the annular energy storage box, and the box cover is provided with a plurality of second heat dissipation holes.