CN219937174U

CN219937174U - Battery module, energy storage plug box and energy storage electric cabinet

Info

Publication number: CN219937174U
Application number: CN202321685794.0U
Authority: CN
Inventors: 庄一帆
Original assignee: Shanghai Lanjun New Energy Technology Co Ltd
Current assignee: Shanghai Lanjun New Energy Technology Co Ltd
Priority date: 2023-06-29
Filing date: 2023-06-29
Publication date: 2023-10-31
Anticipated expiration: 2033-06-29

Abstract

The utility model belongs to the technical field of energy storage cabinets and discloses a battery module, an energy storage plug box and an energy storage electric cabinet. The height of the soaking plate is higher than that of the battery cells, the contact area between the soaking plate and the surfaces of the battery cells is enlarged, so that the cooling efficiency of the soaking plate to the battery cells is improved, the soaking plate is arranged between every two adjacent rows of battery cells, the soaking plate can be contacted with more battery cells in the battery module, the overall cooling efficiency and cooling effect of the battery module are improved, and the cycle life of the battery module is prolonged.

Description

Battery module, energy storage plug box and energy storage electric cabinet

Technical Field

The utility model relates to the technical field of energy storage cabinets, in particular to a battery module, an energy storage plug box and an energy storage electric cabinet.

Background

In order to meet the increasing electricity demand, an energy storage cabinet is often used as a basic unit of energy storage equipment to meet the electricity demand. The battery cells are placed in the energy storage cabinet, the temperature of the battery cells can be gradually increased along with long-time use, and the battery cells can be damaged due to the excessively high temperature, so that the service life of the battery cells is reduced, and the energy storage cabinet is required to enable the internal battery cells to be in a proper temperature environment.

The energy storage cabinet comprises an energy storage inserting box, a battery module is placed in the energy storage inserting box, the soaking plate is used as a side plate of the battery module for cooling the battery module, cooling media for cooling are packaged in the soaking plate and flow channels for cooling media to circulate, the cooling media are arranged at the bottom ends of the flow channels under the action of gravity, when the battery cells generate heat, the cooling media are gasified into gas, the gas floats to the top ends of the soaking plate, the cooling liquid state flows back to the bottom ends, and the cooling of the battery module is realized by the soaking plate in such a circulating way.

However, the soaking plate is used as a side plate of the battery module, so that the soaking plate can only cool the surface of the battery module outermost battery core, and can not timely and effectively cool and dissipate heat of the inner battery core, thereby having low cooling efficiency and poor cooling effect.

Disclosure of Invention

The utility model aims to provide a battery module, an energy storage plug box and an energy storage electric cabinet, which are used for enhancing the cooling effect, improving the cooling efficiency and prolonging the cycle life.

To achieve the purpose, the utility model adopts the following technical scheme:

in one aspect, there is provided a battery module including:

a plurality of rows of cells;

the connecting tabs are arranged at the tops of the plurality of rows of the battery cells and are used for connecting the plurality of rows of the battery cells in series and parallel;

and the vapor chamber is clamped between every two adjacent rows of the battery cells, a refrigerant medium used for cooling the battery cells flows in the vapor chamber, and the height of the vapor chamber is higher than that of the battery cells.

Optionally, an avoidance gap for avoiding the connection bar is formed at the top of the soaking plate.

Optionally, a cooling runner for circulating the refrigerant medium is arranged in the soaking plate, and a refrigerant injection hole communicated with the cooling runner is further formed in the soaking plate.

Optionally, the cooling flow channel comprises a first flow channel, a second flow channel and a connecting flow channel, the refrigerant injection hole is communicated with the first flow channel, the first flow channel and the second flow channel are connected through the connecting flow channel, and the first flow channel, the second flow channel and the connecting flow channel form a U-shaped structure.

Optionally, the cooling flow channel further comprises a plurality of auxiliary flow channels, and a plurality of auxiliary flow channels are connected in parallel between the first flow channel and the second flow channel.

Optionally, the first flow channel, the second flow channel and the plurality of auxiliary flow channels are all in wave-shaped structures.

Optionally, the battery module further comprises a fixing component, the fixing component comprises end plates and binding bands, the end plates are arranged on two sides of the battery cells in multiple rows, and the binding bands are used for binding the battery cells in multiple rows and the end plates.

Optionally, the connecting tab is an oblong aluminum plate.

Optionally, the soaking plate and the battery core are connected through heat conduction structural adhesive.

On the other hand, an energy storage plug box is provided, the energy storage plug box includes the battery module of any one of the above, the energy storage plug box still includes box shell and air supply piece, the box shell is equipped with and is used for placing battery module's accommodation space, ventilation structure has still been seted up on the lateral wall of box shell, the air supply piece sets firmly on the lateral wall of box shell, and with ventilation structure sets up relatively.

Optionally, the ventilation structure is a plurality of through grooves.

In another aspect, there is provided an energy storage electrical cabinet comprising a plurality of energy storage pods as defined in any one of the above.

The utility model has the beneficial effects that:

the utility model provides a battery module, an energy storage plug box and an energy storage electric cabinet, wherein the battery module enlarges the contact area between a soaking plate and the surface of an electric core by making the height of the soaking plate higher than that of the electric core, thereby improving the cooling efficiency of the soaking plate to the electric core, and arranging the soaking plate between every two adjacent rows of electric cores, so that the soaking plate can be contacted with more electric cores in the battery module, thereby improving the overall cooling efficiency and cooling effect of the battery module and prolonging the cycle life of the battery module;

the utility model also provides an energy storage plug box which comprises the battery module, so that the energy storage plug box has a good cooling effect;

the utility model also provides an energy storage electric cabinet which comprises a plurality of the energy storage plug boxes, so that the energy storage electric cabinet has high-efficiency cooling efficiency and safe use.

Drawings

Fig. 1 is an assembly view of a battery module according to the present utility model;

fig. 2 is a structural exploded view of the battery module according to the present utility model;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a block diagram of a cooling flow path on a vapor chamber of the present utility model;

FIG. 5 is an assembly view of the energy storage jack of the present utility model;

FIG. 6 is a structural exploded view of the energy storage jack of the present utility model;

fig. 7 is an assembly view of the case housing and the blower of the present utility model.

In the figure:

100. a case housing; 200. an air supply member; 300. a ventilation structure;

1. a battery cell;

2. connecting the tabs;

3. a soaking plate; 31. avoiding the notch; 32. a cooling flow passage; 321. a first flow passage; 322. a second flow passage; 323. a connecting runner; 324. an auxiliary flow passage;

4. a fixing assembly; 41. an end plate; 42. a binding band.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

In order to enhance the cooling effect and improve the cooling efficiency and prolong the cycle life of the battery module, the embodiment provides a battery module.

As shown in fig. 1 to 4, the battery module comprises a plurality of rows of electric cores 1, a connecting tab 2 and a soaking plate 3, wherein the connecting tab 2 is arranged at the top of the plurality of rows of electric cores 1, the connecting tab 2 is used for connecting the plurality of rows of electric cores 1 in series-parallel, the soaking plate 3 is clamped between every two adjacent rows of electric cores 1, a refrigerant medium used for cooling the electric cores 1 flows in the soaking plate 3, and the height of the soaking plate 3 is higher than that of the electric cores 1.

The contact area between the soaking plate 3 and the surface of the battery cell 1 is enlarged by enabling the height of the soaking plate 3 to be higher than that of the battery cell 1, so that the cooling efficiency of the soaking plate 3 to the battery cell 1 is improved, and the soaking plate 3 is arranged between every two adjacent rows of the battery cells 1, so that the soaking plate 3 can be contacted with more battery cells 1 in the battery module, the overall cooling efficiency and cooling effect of the battery module are improved, and the cycle life of the battery module is prolonged.

Further, an avoidance gap 31 for avoiding the connection bar sheet 2 is formed in the top of the soaking plate 3, so that the mutual interference between the soaking plate 3 and the connection bar sheet 2 is avoided.

In this embodiment, in order to ensure the connection strength between the soaking plate 3 and the electric core 1, the cooling effect between the soaking plate 3 and the electric core 1 is further improved, the surface in contact between the soaking plate 3 and the electric core 1 is further coated with a heat conducting structural adhesive, and since the soaking plate 3 is provided with the avoiding notch 31 avoiding the connecting bar sheet 2, the corner of the avoiding notch 31 is rounded, so that the electric core 1 is prevented from being scratched by the corner of the avoiding notch 31.

Optionally, as shown in fig. 4, a cooling flow channel 32 for circulating a refrigerant medium is provided inside the soaking plate 3, and a refrigerant injection hole communicated with the cooling flow channel 32 is further provided on the soaking plate 3. By providing the cooling flow channel 32 inside the soaking plate 3, the flow path of the refrigerant medium is controlled, so that the flowing time of the refrigerant medium in the soaking plate 3 is prolonged, and the cooling effect of the soaking plate 3 is improved.

Further, as shown in fig. 4, the cooling flow path 32 includes a first flow path 321, a second flow path 322, and a connecting flow path 323, the refrigerant injection hole communicates with the first flow path 321, the first flow path 321 and the second flow path 322 are connected through the connecting flow path 323, and the first flow path 321, the second flow path 322, and the connecting flow path 323 form a U-shaped structure. By forming the first flow channel 321, the second flow channel 322, and the connecting flow channel 323 into a U-shaped structure, the area covered by the cooling flow channel 32 when flowing in the soaking plate 3 is enlarged, and the cooling effect of the soaking plate 3 on the battery cells 1 is improved better.

In this embodiment, the working principle of the refrigerant medium is that the refrigerant medium is converted into gas when the battery cell 1 heats, the gas floats to the top end of the soaking plate 3, and the cooling liquid flows back to the bottom end, so that the battery module is cooled by the soaking plate 3, and the first flow channel 321 is located below the second flow channel 322, so that the refrigerant injection hole communicated with the first flow channel 321 is also located below the second flow channel 322.

Further, as shown in fig. 4, the cooling flow channel 32 further includes a plurality of auxiliary flow channels 324, and the plurality of auxiliary flow channels 324 are connected in parallel between the first flow channel 321 and the second flow channel 322. By connecting a plurality of auxiliary flow channels 324 in parallel between the first flow channel 321 and the second flow channel 322, the area occupied by the cooling flow channels 32 in the soaking plate 3 is further increased, and the cooling efficiency and the cooling effect of the soaking plate 3 on the battery cells 1 are further improved.

Further, as shown in fig. 4, the first flow channel 321, the second flow channel 322 and the plurality of auxiliary flow channels 324 are all in a wave-shaped structure. By arranging the first flow passage 321, the second flow passage 322, and the plurality of auxiliary flow passages 324 in a wave-shaped structure, the degree of meandering of the cooling flow passage 32 is increased, the path of the refrigerant medium flowing in the cooling flow passage 32 is prolonged, and the cooling efficiency and the cooling effect of the vapor chamber 3 are enhanced. In this embodiment, every two adjacent auxiliary flow passages 324 are symmetrically arranged, thereby ensuring a uniform cooling effect.

Optionally, as shown in fig. 1 and 2, the battery module further includes a fixing component 4, where the fixing component 4 includes an end plate 41 and a strap 42, the end plate 41 is disposed on two sides of the multiple rows of battery cells 1, and the strap 42 is used to bind the multiple rows of battery cells 1 and the end plate 41. By using the end plate 41 and the strap 42, the battery module is constructed in a unitary structure, thereby facilitating movement of the entire battery module. In this embodiment, in order to secure the binding strength of the binding bands 42, the battery module is fixed using the upper and lower binding bands 42.

Alternatively, as shown in fig. 3, the connecting tab 2 is an oblong aluminum plate. By using an oblong aluminum plate as the connection tab 2, the oblong structure is farther from the soaking plate 3 than the rectangle, although the current carrying capacity is the same, and the electric gap is larger, thereby avoiding interference between the connection tab 2 and the soaking plate 3.

As shown in fig. 5 to 7, in the present embodiment, there is further provided an energy storage plug box, the energy storage plug box includes the above-mentioned battery module, the energy storage plug box further includes a box housing 100 and an air supply member 200, the box housing 100 is provided with an accommodating space for accommodating the battery module, a ventilation structure 300 is further provided on a side wall of the box housing 100, and the air supply member 200 is fixedly provided on a side wall of the box housing 100 and is disposed opposite to the ventilation structure 300.

Through putting into the energy storage subrack with battery module, utilize the cooperation of air supply piece 200 and ventilation structure 300 in the energy storage subrack for battery module is except using soaking plate 3 to dispel the heat, can also dispel the heat through the mode of forced air cooling, thereby has further improved battery module's cooling efficiency and cooling effect, has guaranteed battery module's safety in utilization, has improved battery module's circulation life.

Alternatively, as shown in fig. 7, the ventilation structure 300 is a plurality of through slots. By arranging the ventilation structure 300 as a plurality of through slots, the efficiency at the time of discharging is improved, so that the cold air blown out from the air supply member 200 can be discharged out of the energy storage plug box as soon as possible through the plurality of through slots.

In this embodiment, still provide an energy storage electric cabinet, this energy storage electric cabinet includes a plurality of foretell energy storage subracks for energy storage electric cabinet has efficient cooling efficiency and safety in utilization.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. The battery module, its characterized in that, the battery module includes:

a plurality of rows of battery cells (1);

the connecting tabs (2) are arranged at the tops of the plurality of rows of the electric cores (1), and the connecting tabs (2) are used for connecting the plurality of rows of the electric cores (1) in series and parallel;

and a soaking plate (3) is arranged between every two adjacent rows of the battery cells (1), a refrigerant medium used for cooling the battery cells (1) flows in the soaking plate (3), and the height of the soaking plate (3) is higher than that of the battery cells (1).

2. The battery module according to claim 1, wherein an avoidance gap (31) for avoiding the connection tab (2) is provided at the top of the soaking plate (3).

3. The battery module according to claim 1, wherein a cooling flow channel (32) for circulating the refrigerant medium is provided inside the soaking plate (3), and a refrigerant injection hole communicated with the cooling flow channel (32) is further provided on the soaking plate (3).

4. The battery module according to claim 3, wherein the cooling flow path (32) includes a first flow path (321), a second flow path (322), and a connection flow path (323), the refrigerant injection hole communicates with the first flow path (321), the first flow path (321) and the second flow path (322) are connected through the connection flow path (323), and the first flow path (321), the second flow path (322), and the connection flow path (323) form a U-shaped structure.

5. The battery module according to claim 4, wherein the cooling flow channel (32) further comprises a plurality of auxiliary flow channels (324), the plurality of auxiliary flow channels (324) being connected in parallel between the first flow channel (321) and the second flow channel (322).

6. The battery module according to claim 5, wherein the first flow channel (321), the second flow channel (322), and the plurality of auxiliary flow channels (324) are each of a wave-shaped structure.

7. The battery module according to claim 1, further comprising a fixing assembly (4), wherein the fixing assembly (4) comprises end plates (41) and binding bands (42), the end plates (41) are arranged on two sides of the plurality of rows of the battery cells (1), and the binding bands (42) are used for binding the plurality of rows of the battery cells (1) and the end plates (41).

8. The battery module according to claim 1, wherein the connection tab (2) is an oblong aluminum plate.

9. The battery module according to claim 1, wherein the soaking plate (3) and the electric core (1) are connected by a heat conductive structural adhesive.

10. The energy storage plug box is characterized by comprising the battery module according to any one of claims 1-9, the energy storage plug box further comprises a box shell (100) and an air supply piece (200), the box shell (100) is provided with an accommodating space for accommodating the battery module, a ventilation structure (300) is further arranged on the side wall of the box shell (100), and the air supply piece (200) is fixedly arranged on the side wall of the box shell (100) and is opposite to the ventilation structure (300).

11. The energy storage jack of claim 10, wherein the ventilation structure (300) is a plurality of through slots.

12. An energy storage electrical cabinet comprising a plurality of energy storage pods according to any one of claims 10 to 11.