CN217035775U

CN217035775U - Battery module and energy storage power supply

Info

Publication number: CN217035775U
Application number: CN202220308323.7U
Authority: CN
Inventors: 孙中伟; 胡超; 沈高松
Original assignee: Shenzhen Hello Tech Energy Co Ltd
Current assignee: Shenzhen Hello Tech Energy Co Ltd
Priority date: 2022-02-16
Filing date: 2022-02-16
Publication date: 2022-07-22
Anticipated expiration: 2032-02-16

Abstract

The utility model belongs to the technical field of battery modules, and discloses a battery module and an energy storage power supply. The two ends of the box body are communicated and are provided with a first cavity, and the plurality of battery modules are arranged in the first cavity; the air guide assembly comprises a first air guide frame and a second air guide frame which are detachably connected to two ends of the box body respectively, two ends of the first air guide frame are communicated with each other and are provided with second cavities, one communicated end of the second air guide frame is communicated with the box body, and the second air guide frame is provided with a third cavity and an air collecting plate arranged at the other end; the second cavity, the first cavity and the third cavity are sequentially communicated to form an air cavity; the heat radiation fan is detachably connected to the air collecting plate and corresponds to the air cavity. The battery module is reasonable in heat dissipation structure, can avoid the reduction of power generation efficiency caused by the temperature rise of the battery module, improves the use safety, and reduces wind noise; the energy storage power supply comprises the battery module, and has the advantages of good cooling and heat dissipation effects, small wind noise, strong heat management performance, high safety and good use feeling for customers.

Description

Battery module and energy storage power supply

Technical Field

The utility model relates to the technical field of battery modules, in particular to a battery module and an energy storage power supply.

Background

With the development of the new energy market, the scenes of various battery modules in market application are more and more extensive. Products adopting an energy storage power supply as a power source in the existing market are generally high-end series, and customers have higher expectations and requirements for the thermal management performance of the battery module. The panel of the energy storage power supply is provided with various interfaces, such as an AC interface, a USB interface, a car washing interface and the like, and when the panel works with a load, the interface of the panel can generate a large amount of heat energy due to chemical reaction of the battery module, so that the temperature of the battery module rises; when the battery module is applied to outdoor scenes, the heating phenomenon is further aggravated. The temperature rise of the battery module is high, so that the power generation efficiency of the battery module is reduced due to the fact that the electric quantity cannot be completely discharged, and even a battery cell is ignited due to overhigh temperature; on the other hand, the great noise often appears because structural design is unreasonable for a long time in the long-time heat dissipation of the fan that the battery module is attached, can't reach the wind standard of making an uproar of 3D electronic product, influences customer and uses experience.

Therefore, a new battery module and energy storage power source are needed to improve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a battery module which is reasonable in heat dissipation structure, can avoid the reduction of power generation efficiency caused by higher temperature rise of the battery module, and improves the use safety; moreover, the wind noise of the battery module is reduced, and the use feeling of a client is improved.

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

a battery module, includes the battery module of a plurality of series connection, battery module is including a plurality of electric cores that set up side by side, battery module still includes:

the battery pack comprises a box body, a battery module and a battery module, wherein two ends of the box body are communicated and are provided with a first cavity, and the plurality of battery modules are arranged in the first cavity;

the air guide assembly comprises a first air guide frame and a second air guide frame which are detachably connected to two ends of the box body respectively, two ends of the first air guide frame are communicated and are provided with second cavities, one communicated end of the second air guide frame is communicated with the box body, and the second air guide frame is provided with a third cavity and an air collecting plate arranged at the other end; the second cavity, the first cavity and the third cavity are communicated in sequence to form an air cavity; and

and the heat dissipation fan is detachably connected to the air collecting plate and corresponds to the air cavity.

As a preferable structure of the present invention, the plurality of battery cells are arranged in parallel and at intervals, and the extending direction of the wind cavity is perpendicular to the axial direction of the battery cells.

As a preferred structure of the present invention, the air cavity includes an air inlet end and an air outlet end, and the heat dissipation fan is disposed at the air outlet end.

As a preferable structure of the present invention, the wind-collecting plate is provided with a mounting hole, and the heat dissipation fan is detachably mounted in the mounting hole.

As a preferable structure of the present invention, the case includes:

an upper cover;

the lower cover and the upper cover are oppositely arranged at two ends of the battery module; and

the two air deflectors are respectively arranged on two sides of the battery module, and two ends of each air deflector are respectively detachably connected to the upper cover and the lower cover.

As a preferable structure of the present invention, the second air guide frame further includes:

the three second side plates are sequentially connected and form the third cavity with one air deflector in an enclosing manner;

the second mounting panel, the second mounting panel connect perpendicularly in the second curb plate, the second mounting panel can dismantle connect in the box.

As a preferable structure of the present invention, the first air guiding frame includes:

the four first side plates are sequentially connected with a guard to form the second cavity;

the first mounting plate is vertically connected to the first side plate, and the first mounting plate is detachably connected to the box body.

The utility model also aims to provide the energy storage power supply, and the cooling fan has the advantages of good cooling and heat dissipation effects, small wind noise, strong heat management performance, high safety and good use feeling for customers.

the energy storage power supply comprises the battery module and a shell, wherein the shell is detachably connected to the battery module, the shell comprises a first ventilating piece with a plurality of first ventilating openings and a second ventilating piece with a plurality of second ventilating openings, and the first ventilating piece and the second ventilating piece are respectively aligned to a first air guide frame and a second air guide frame.

As a preferable structure of the utility model, the first ventilation openings are arranged in parallel and at even intervals, the second ventilation openings are arranged in parallel and at even intervals, and two ends of the air cavity are respectively communicated with the first ventilation openings and the second ventilation openings.

As a preferred structure of the utility model, the housing further includes a first housing and a second housing which are detachably connected, the first housing and the second housing enclose the periphery of the battery module, and the first ventilation sheet and the second ventilation sheet are detachably connected to the first housing and/or the second housing respectively.

The utility model has the beneficial effects that:

according to the battery module, the first air guide frame and the second air guide frame which extend are arranged at the two ends of the first cavity in the box body respectively, so that an air cavity is formed, the heat dissipation fan arranged at one end of the air cavity is started during working, air pressure difference exists at the two ends of the air cavity, flowing heat dissipation air is generated from high air pressure to low air pressure, the heat dissipation air flows along the air cavity and penetrates through heat dissipation gaps among a plurality of battery cores when passing through the first cavity, and heat dissipation is carried out on the battery cores. The first air guide frame and the second air guide frame strengthen the furling of two ends of the air cavity to the scattered air, which is more beneficial to generating stable air pressure difference and enables the air speed to be more stable; the box body increases the sealing effect of the air cavity, avoids escape of the heat dissipation air, enhances the heat dissipation effect, avoids reduction of the power generation efficiency caused by higher temperature rise of the battery module, and improves the use safety of the battery module; moreover, the wind noise of the battery module is reduced, and the use feeling of a client is improved.

The energy storage power supply comprises the battery module, the battery module is provided with the air cavity with the periphery closed and two ends communicated, and the cooling and heat dissipation effect of the heat dissipation fan is enhanced through the stable air pressure difference generated at the two ends of the air cavity, so that the air noise is reduced, the heat management performance is strong, the safety is high, and the use feeling of a client is good.

Drawings

Fig. 1 is a schematic structural diagram of a battery module according to an embodiment of the present invention;

fig. 2 is a schematic structural disassembly diagram of a battery module according to an embodiment of the utility model;

fig. 3 is a schematic structural disassembly diagram of an energy storage power supply according to a second embodiment of the present invention.

In the figure:

1. a box body; 11. an upper cover; 12. a lower cover; 13. an air deflector; 2. an air guide assembly; 20. a wind cavity; 21. a first air guide frame; 211. a second cavity; 212. a first side plate; 213. a first mounting plate; 22. a second air guide frame; 221. a wind-collecting plate; 2211. mounting holes; 222. a third cavity; 223. a second side plate; 224. a second mounting plate; 3. a heat radiation fan;

100. a battery module; 101. an electric core; 200. a housing; 201. a first ventilation flap; 2011. a first air vent; 202. a second vent sheet; 2021. a second ventilation opening; 203. a first housing; 204. a second housing.

Detailed Description

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

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

In the present invention, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation that the first and second features are not in direct contact, but are in contact via another feature between them. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to be limiting.

Example one

As shown in fig. 1-2, a battery module according to an embodiment of the present invention includes a plurality of battery modules 100 connected in series, where the battery module 100 includes a plurality of battery cells 101 arranged in parallel, and a heat dissipation gap is formed between the plurality of battery cells 101. The battery module further comprises a box body 1, an air guide assembly 2 and a heat dissipation fan 3. The two ends of the box body 1 are communicated and provided with a first cavity, and the plurality of battery modules 100 are arranged in the first cavity; the case 1 can provide support and protection to the battery module 100. The air guide assembly 2 comprises a first air guide frame 21 and a second air guide frame 22 which are detachably connected to two ends of the box body 1 respectively, two ends of the first air guide frame 21 are communicated and are provided with a second cavity 211, one end, communicated with the box body 1, of the second air guide frame 22 is communicated with the other end, far away from the first air guide frame 21, of the box body 1, and the second air guide frame 22 is provided with an air collecting plate 221 and a third cavity 222 which are arranged at the other end; the second cavity 211, the first cavity and the third cavity 222 are sequentially communicated to form the air cavity 20, which is a flowing cavity for dissipating heat. The heat dissipation fan 3 is detachably connected to the air collecting plate 221 and corresponds to the air cavity 20. The during operation starts radiator fan 3, because of second cavity 211 department does not have the installation fan, consequently there is wind pressure difference at the both ends of wind chamber 20, produces the heat dissipation wind that flows toward the direction of low wind pressure from high wind pressure, and heat dissipation wind flows and passes the heat dissipation clearance between a plurality of electric cores 101 when passing through first cavity along wind chamber 20, dispels the heat to electric core 101, and the heat of avoiding electric core 101 to produce piles up and causes the battery module temperature to rise.

According to the battery module provided by the embodiment of the utility model, the first air guide frame 21 and the second air guide frame 22 which extend are respectively arranged at the two ends of the first cavity in the box body 1, so that the air cavity 20 is formed, when the battery module works, the heat dissipation fan 3 arranged at one end of the air cavity 20 is started, so that the air pressure difference exists at the two ends of the air cavity 20, flowing heat dissipation air is generated from high air pressure to low air pressure, the heat dissipation air flows along the air cavity 20 and passes through heat dissipation gaps among the plurality of battery cells 101 when passing through the first cavity, and the battery cells 101 are dissipated. The first air guiding frame 21 and the second air guiding frame 22 strengthen the gathering of the two ends of the air cavity 20 to the scattered air, which is more beneficial to generating stable air pressure difference and enables the air speed to be more stable; the box body 1 increases the sealing effect of the air cavity 20, avoids the escape of the heat dissipation air, enhances the heat dissipation effect, avoids the reduction of the power generation efficiency caused by higher temperature rise of the battery module, and improves the use safety of the battery module; moreover, the wind noise of the battery module is reduced, and the use feeling of a client is improved.

Preferably, the plurality of battery cells 101 are arranged in parallel and at intervals, and the extending direction of the wind cavity 20 is perpendicular to the axial direction of the plurality of battery cells 101. Thus, when the cooling wind flows in the wind cavity 20, the cooling wind vertically contacts the outer surfaces of the plurality of battery cells 101, and compared with the design that the cooling wind axially extends along the battery cells 101, the structure of the embodiment has a stronger cooling effect.

As preferred scheme, wind chamber 20 includes air inlet end and air-out end, and radiator fan 3 sets up in the air-out end. That is, when the heat dissipation fan 3 operates as a suction side, the heat dissipation wind flows from the first wind guiding frame 21 to the second wind guiding frame 22 through the first cavity. In the air cavity 20 with limited space formed by the first air guide frame 21, the box body 1 and the second air guide frame 22, air suction can generate larger air pressure difference, and the air speed is kept stable; moreover, the heat dissipation gaps between the plurality of battery cells 101 are smaller, and the air suction mode is more favorable for dissipating heat wind through the gaps between the battery cells 101.

Preferably, the air collecting plate 221 is provided with a mounting hole 2211, and the heat dissipation fan 3 is detachably mounted in the mounting hole 2211. Through the mounting hole 2211, the convenient detachment of the heat dissipation fan 3 can be realized, the air cavity 20 is aligned, and moreover, the situation that the sealing performance of the third cavity 222 is damaged due to the installation of the heat dissipation fan 3 can be avoided.

Preferably, the box body 1 comprises an upper cover 11, a lower cover 12 and two air deflectors 13. The lower cover 12 and the upper cover 11 are disposed at two opposite ends of the battery module 100, and can provide a supporting structure and protection for the plurality of battery cells 101. The two air deflectors 13 are respectively disposed on two sides of the battery module 100, and two ends of the air deflectors 13 are respectively detachably connected to the upper cover 11 and the lower cover 12, preferably, the air deflectors can be connected by a fastening member through a threaded connection. The case body 1 is divided into four parts, which facilitates the assembly and packaging of the battery module 100.

Preferably, the second air guiding frame 22 further includes three second side plates 223 and a second mounting plate 224; the three second side plates 223 are sequentially connected and form a third cavity 222 with one side plate 13 in an enclosing manner, a gap is formed between one end, without the second side plate 223, of the second air guide frame 22 and the battery module 100, so that a lead can conveniently penetrate through the gap to be connected with the battery core 101, and then the third cavity 222 is formed by installing the air guide plate 13 in an enclosing manner. The second mounting plate 224 is vertically connected to the second side plate 223, and the second mounting plate 224 is detachably connected to the cabinet 1. The second mounting plate 224 serves as a bent edge, so that the structural stability of the second air guide frame 22 is improved, the deformation is reduced, and the detachable connection between the second air guide frame 22 and the box body 1 is facilitated.

Preferably, the first air guiding frame 21 includes four first side plates 212 and a first mounting plate 213. The four first side plates 212 enclose a second cavity 211; the first mounting plate 213 is vertically connected to the first side plate 212, and the first mounting plate 213 is detachably connected to the cabinet 1. First mounting panel 213 increases first wind-guiding frame 21's structural stability as the limit of bending on the one hand, reduces deformation, and on the other hand, the first wind-guiding frame 21 of being convenient for is connected with dismantling of box 1.

Example two

As shown in fig. 3, a second embodiment of the utility model provides an energy storage power supply, which includes the battery module in the first embodiment, and further includes a housing 200, where the housing 200 is detachably connected to the battery module, and provides protection for the battery module, and is convenient to operate and carry. The housing 200 includes a first ventilation flap 201 having a plurality of first ventilation openings 2011 and a second ventilation flap 202 having a plurality of second ventilation openings 2021, and the first ventilation flap 201 and the second ventilation flap 202 are aligned with the first air guiding frame 21 and the second air guiding frame 22, respectively. The first air vent 2011 and the second air vent 2021 increase the flow of the heat dissipation air, and can discharge the heat in the housing 200 to the external environment through the first air vent 2011 or the second air vent 2021.

The energy storage power supply of this embodiment, including the battery module in embodiment one, it has the wind chamber 20 that seals and both ends circulation all around, and the cooling radiating effect of reinforcing radiator fan 3 is strengthened through the stable wind pressure difference that produces in wind chamber 20 both ends, and thermal management performance is strong, and the security is high, and the customer uses and feels good.

Preferably, the first ventilation openings 2011 are arranged on the first ventilation fins 201 in parallel and at even intervals, the second ventilation openings 2021 are arranged on the second ventilation fins 202 in parallel and at even intervals, and two ends of the air cavity 20 are respectively communicated with the first ventilation openings 2011 and the second ventilation openings 2021. The first air vents 2011 and the second air vents 2021 which are arranged in parallel and at even intervals have better flow guiding effect on the heat dissipation air.

Preferably, the housing 200 further includes a first housing 203 and a second housing 204 detachably connected to each other, the first housing 203 and the second housing 204 enclose the periphery of the battery module, and the first vent sheet 201 and the second vent sheet 202 are detachably connected to the first housing 203 and/or the second housing 204. Preferably, the two air deflectors 13 have a plurality of mounting holes through which fasteners can connect the first and

second housings

203 and 204. Furthermore, the first ventilating sheet 201 and the second ventilating sheet 202 are provided with a plurality of buckles, and the buckles are clamped with the first shell 203 and/or the second shell 204, so that the assembly and disassembly are facilitated.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the utility model. This need not be, nor should it be exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A battery module, includes a plurality of battery modules (100) of establishing ties, battery module (100) is including a plurality of electric cores (101) that set up side by side, its characterized in that, battery module still includes:

the battery pack comprises a box body (1), a plurality of battery modules (100) and a plurality of battery modules, wherein two ends of the box body (1) are communicated and are provided with first cavities;

the air guide assembly (2) comprises a first air guide frame (21) and a second air guide frame (22) which are detachably connected to two ends of the box body (1) respectively, two ends of the first air guide frame (21) are communicated with each other and are provided with second cavities (211), one end, communicated with the box body (1), of the second air guide frame (22) is communicated with the box body (1), and the second air guide frame (22) is provided with a third cavity (222) and an air collecting plate (221) arranged at the other end; the second cavity (211), the first cavity and the third cavity (222) are communicated in sequence to form an air cavity (20); and

the heat dissipation fan (3) is detachably connected to the air collecting plate (221) and corresponds to the air cavity (20).

2. The battery module according to claim 1, characterized in that a plurality of battery cores (101) are arranged in parallel and at intervals, and the extending direction of the wind cavity (20) is perpendicular to the axial direction of the battery cores (101).

3. The battery module according to claim 1, wherein the air cavity (20) comprises an air inlet end and an air outlet end, and the heat dissipation fan (3) is disposed at the air outlet end.

4. The battery module according to claim 1, wherein the air collecting plate (221) is provided with a mounting hole (2211), and the heat dissipation fan (3) is detachably mounted in the mounting hole (2211).

5. The battery module according to claim 1, wherein the case (1) includes:

an upper cover (11);

a lower cover (12), wherein the lower cover (12) and the upper cover (11) are oppositely arranged at two ends of the battery module (100); and

the two air deflectors (13) are respectively arranged on two sides of the battery module (100), and two ends of each air deflector (13) are respectively detachably connected to the upper cover (11) and the lower cover (12).

6. The battery module according to claim 5, wherein the second air guide frame (22) further comprises:

the three second side plates (223) are sequentially connected and form the third cavity (222) with the air deflector (13) in a surrounding manner;

a second mounting plate (224), the second mounting plate (224) being vertically connected to the second side plate (223), the second mounting plate (224) being detachably connected to the cabinet (1).

7. The battery module according to any one of claims 1-6, wherein the first air guiding frame (21) comprises:

the four first side plates (212) are sequentially connected with each other to form the second cavity (211) in a surrounding manner;

a first mounting plate (213), the first mounting plate (213) is vertically connected to the first side plate (212), and the first mounting plate (213) is detachably connected to the box body (1).

8. An energy storage power supply, characterized by comprising the battery module of any one of claims 1 to 7 and a housing (200), wherein the housing (200) is detachably connected to the battery module, the housing (200) comprises a first ventilation sheet (201) having a plurality of first ventilation openings (2011) and a second ventilation sheet (202) having a plurality of second ventilation openings (2021), and the first ventilation sheet (201) and the second ventilation sheet (202) are respectively aligned with the first air guide frame (21) and the second air guide frame (22).

9. The energy storage power supply according to claim 8, wherein the first ventilation openings (2011) are arranged in parallel and at regular intervals, the second ventilation openings (2021) are arranged in parallel and at regular intervals, and two ends of the air cavity (20) are respectively communicated with the first ventilation openings (2011) and the second ventilation openings (2021).

10. The energy storage power supply according to claim 8, wherein the housing (200) further comprises a first shell (203) and a second shell (204) which are detachably connected, the first shell (203) and the second shell (204) enclose the periphery of the battery module, and the first ventilation sheet (201) and the second ventilation sheet (202) are detachably connected to the first shell (203) and/or the second shell (204), respectively.