CN219801011U - Energy storage battery - Google Patents

Abstract

The utility model relates to an energy storage battery, which comprises a shell, at least one fan and a battery module, wherein the fan is arranged on one side of the shell, a fan channel is arranged below the fan, the fan channel is arranged in an extending way along a first direction, and the fan channel is used for supplying hot air for discharging; the battery module is installed in the casing, has more than two air current passageway that extend along the second direction to set up in the battery module and/or between battery module and the casing, and air current passageway is linked together with the fan passageway, and air current passageway is used for supplying cold wind to get into or hot-blast discharge to the fan passageway. The technical scheme aims at solving the problem that the corner air duct exists in the prior art, and the air duct in the battery pack is set to be a straight channel. Specifically, more than two airflow channels extending along the second direction are arranged in the battery module and/or between the battery module and the shell, and the airflow channels are straight channels, so that the air can be successfully blown when the cold air flows through the air channel, and the flow of the airflow can be better matched, so that the heat dissipation efficiency is improved.

Description

Energy storage battery

Technical Field

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

Background

In an electrochemical battery energy storage system, in order to ensure that a battery module operates in an optimal environment temperature when the battery is charged and discharged, an air cooling technology is mainly adopted to keep the environment temperature of the battery within a certain suitable operating temperature range when the battery is operated.

As shown in fig. 1 to 3, the conventional battery air cooling technology generally adopts a method of cooling air by back-in and forth-out hot air, and cold air channels in a battery module are arranged vertically and horizontally, including a straight air channel and a corner air channel. The fan 2 is operated to suck and discharge heat generated by power consumption when the battery is charged and discharged to the outside of the shell 1, a straight air duct 7 and a corner air duct 6 are arranged in a structure formed by the shell 1 and the battery module 3, negative pressure is generated in the straight air duct 7 and the corner air duct 6, cold air c outside the shell 1 is sucked into the air duct, and hot air d is discharged out of the shell 1 by the fan 2. Because of the existence of the plurality of corner air channels 6, the movement of the air flow is greatly blocked, the air flow cannot be matched with the flow of the air flow well, the air flow retention time is prolonged, and the air flow speed and the air flow are slowed down, so that the heat extraction of the battery is influenced, the heat collection is higher, and the heat extraction efficiency is greatly reduced.

Disclosure of Invention

In view of the above problems, the present utility model provides an energy storage battery, which is used for solving the problems that in the prior art, a plurality of corner ventilation channels exist, the movement of air flow is greatly hindered, the air flow cannot be well matched with the flow of the air flow, the air flow retention time is prolonged, the air flow speed and the air flow are reduced, the heat extraction of the battery is affected, the heat collection is high, and the heat extraction efficiency is greatly reduced.

In order to achieve the above object, the present inventors provide an energy storage battery, including a housing, at least one fan and a battery module, wherein the fan is installed at one side of the housing, a fan channel is provided under the fan, the fan channel is extended along a first direction, and the fan channel is used for supplying hot air for discharge; the battery module is installed in the casing, has more than two air current passageway that extend along the second direction to set up in the battery module and/or between battery module and the casing, and air current passageway is linked together with the fan passageway, and air current passageway is used for supplying cold wind to get into or hot-blast discharge to the fan passageway.

In some embodiments, an air outlet is formed in the housing and is in communication with a fan channel, and the fan channel is matched with the air outlet for supplying hot air to be discharged out of the housing.

In some embodiments, the housing is provided with more than two air inlets spaced apart along the first direction at the other side corresponding to the fan, and one air inlet corresponds to one air flow channel.

In some embodiments, the energy storage battery further comprises a fixing frame, and the battery module is installed in the shell through the fixing frame.

In some embodiments, the battery module includes more than two first electric cells, the more than two first electric cells are distributed at intervals along the first direction, and airflow channels are arranged between the adjacent first electric cells and/or between the first electric cells and the shell.

In some embodiments, the battery module includes two or more second electric cores and two or more third electric cores distributed along the second direction, where the two or more second electric cores and the two or more third electric cores are all distributed at intervals along the first direction and the interval distances are the same; the air flow channels comprise first air flow channels and second air flow channels, the first air flow channels are arranged between the second electric cores and/or between the second electric cores and the shell, the second air flow channels are arranged between the third electric cores and/or between the third electric cores and the shell, and the first air flow channels are communicated with the second air flow channels.

In some embodiments, the airflow channel is disposed parallel to the second direction.

In some embodiments, the blower channel increases in diameter from left to right.

In some embodiments, more than two heat dissipation holes are further formed above the shell.

In some embodiments, the fan comprises an axial flow fan or a centrifugal fan.

Compared with the prior art, the technical scheme aims at solving the problem that the corner air duct exists in the prior art, and the air duct in the battery pack is set to be a straight channel. Specifically, more than two airflow channels extending along the second direction are arranged in the battery module and/or between the battery module and the shell, and the airflow channels are straight channels, so that the air can be successfully blown when the cold air flows through the air channel, and the flow of the airflow can be better matched, so that the heat dissipation efficiency is improved.

The foregoing summary is merely an overview of the present utility model, and may be implemented according to the text and the accompanying drawings in order to make it clear to a person skilled in the art that the present utility model may be implemented, and in order to make the above-mentioned objects and other objects, features and advantages of the present utility model more easily understood, the following description will be given with reference to the specific embodiments and the accompanying drawings of the present utility model.

Drawings

The drawings are only for purposes of illustrating the principles, implementations, applications, features, and effects of the present utility model and are not to be construed as limiting the utility model.

In the drawings of the specification:

fig. 1 is a schematic structural diagram of an energy storage battery according to the background art;

fig. 2 is a schematic diagram of an internal structure of the energy storage battery according to the background art;

FIG. 3 is a schematic diagram of another structure of the energy storage battery according to the background art;

fig. 4 is a schematic structural diagram of an energy storage battery according to an embodiment;

fig. 5 is a schematic view illustrating an internal structure of an energy storage battery according to an embodiment;

fig. 6 is a schematic diagram of another structure of an energy storage battery according to an embodiment.

Reference numerals referred to in the above drawings are explained as follows:

100. an energy storage battery;

1. a housing;

11. an air outlet;

12. an air inlet;

13. a heat radiation hole;

2. a blower;

3. a battery module;

31. a second cell;

32. a third cell;

4. a fixing frame;

5. an air flow channel;

51. a first airflow passage;

52. a second airflow passage;

6. corner air channels;

7. a straight air duct;

8. a fan channel;

a. a first direction;

b. a second direction;

c. cold air;

d. and (5) hot air.

Detailed Description

In order to describe the possible application scenarios, technical principles, practical embodiments, and the like of the present utility model in detail, the following description is made with reference to the specific embodiments and the accompanying drawings. The embodiments described herein are only for more clearly illustrating the technical aspects of the present utility model, and thus are only exemplary and not intended to limit the scope of the present utility model.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of the phrase "in various places in the specification are not necessarily all referring to the same embodiment, nor are they particularly limited to independence or relevance from other embodiments. In principle, in the present utility model, as long as there is no technical contradiction or conflict, the technical features mentioned in each embodiment may be combined in any manner to form a corresponding implementable technical solution.

Unless defined otherwise, technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present utility model pertains; the use of related terms herein is for the purpose of describing particular embodiments only and is not intended to limit the utility model.

In the description of the present utility model, the term "and/or" is a representation for describing a logical relationship between objects, which means that three relationships may exist, for example a and/or B, representing: there are three cases, a, B, and both a and B. In addition, the character "/" herein generally indicates that the front-to-back associated object is an "or" logical relationship.

In the present utility model, terms such as "first" and "second" are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual number, order, or sequence of such entities or operations.

Without further limitation, the use of the terms "comprising," "including," "having," or other like terms in this specification is intended to cover a non-exclusive inclusion, such that a process, method, or article of manufacture that comprises a list of elements does not include additional elements but may include other elements not expressly listed or inherent to such process, method, or article of manufacture.

As in the understanding of "review guidelines," the expressions "greater than", "less than", "exceeding" and the like are understood to exclude this number in the present utility model; the expressions "above", "below", "within" and the like are understood to include this number. Furthermore, in the description of embodiments of the present utility model, the meaning of "a plurality of" is two or more (including two), and similarly, the expression "a plurality of" is also to be understood as such, for example, "a plurality of" and the like, unless specifically defined otherwise.

In the description of embodiments of the present utility model, spatially relative terms such as "center," "longitudinal," "transverse," "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counter-clockwise," "axial," "radial," "circumferential," etc., are used herein as a basis for the description of the embodiments or as a basis for the description of the embodiments, and are not intended to indicate or imply that the devices or components referred to must have a particular position, a particular orientation, or be configured or operated in a particular orientation and therefore should not be construed as limiting the embodiments of the present utility model.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," "affixed," "disposed," and the like as used in the description of embodiments of the utility model should be construed broadly. For example, the "connection" may be a fixed connection, a detachable connection, or an integral arrangement; the device can be mechanically connected, electrically connected and communicated; it can be directly connected or indirectly connected through an intermediate medium; which may be a communication between two elements or an interaction between two elements. The specific meaning of the above terms in the embodiments of the present utility model can be understood by those skilled in the art to which the present utility model pertains according to circumstances.

Referring to fig. 4 to 6, the present embodiment relates to an energy storage battery 100, which includes a housing 1, at least one fan 2 and a battery module 3, wherein the fan 2 is installed on one side of the housing 1, a fan channel 8 is disposed below the fan 2, the fan channel 8 extends along a first direction a, and the fan channel 8 is used for supplying hot air d for discharging; the battery module 3 is installed in the casing 1, and more than two air flow channels 5 extending along the second direction b are arranged in the battery module 3 and/or between the battery module 3 and the casing 1, the air flow channels 5 are communicated with the fan channels 8, and the air flow channels 5 are used for supplying cold air c or hot air d to be discharged to the fan channels 8.

The case 1 may be made of carbon steel, alloy steel, stainless steel, aluminum alloy, or the like, and the case 1 may be square or rectangular parallelepiped. Optionally, to ensure the heat dissipation performance of the housing 1, more than two heat dissipation holes 13 are formed on the housing 1. In some embodiments, more than two heat dissipation holes 13 are opened above the housing 1.

The fan 2 may be a fan or the like, and exchange of the internal hot air d and the external cold air is realized under the action of the fan 2. Alternatively, the blower 2 is mounted at one side of the housing 1. Specifically, three fans 2 are installed inside the casing 1, and the three fans 2 are disposed at intervals. Below the fan 2 there is a fan channel 8, which fan channel 8 extends in a first direction (direction indicated as a in fig. 4), the fan channel 8 mainly being for the supply of hot air d out of the housing 1.

The battery module 3 is mounted in the housing 1, and optionally, the energy storage battery 100 further includes a fixing frame 4, and the battery module 3 is mounted in the housing 1 through the fixing frame 4. In order to make the cold air pass through the air flow channel 5, the air flow channel can prevent the corner air channel from retarding the flow speed of the over-flowing air and also prevent the cross air channel from forming turbulence. The battery module 3 has two or more air flow passages 5 extending in a second direction (direction indicated by b in fig. 5), and the air flow passages 5 communicate with the fan passage 8. Specifically, the air outlet 11 of the air flow passage 5 communicates with the air inlet 12 of the fan passage 8. Since the air flow passage 5 is provided in the battery module 3, the air flow passage 5 is mainly for the entry of cool air c or the discharge of warm air d to the fan passage 8. In some embodiments, an air flow channel 5 is also provided between the battery module 3 and the case 1.

The technical scheme aims at solving the problem that the corner air duct exists in the prior art, and the air duct in the battery pack is set to be a straight channel. Specifically, there are two or more air flow channels 5 extending in the second direction b in the battery module 3 and/or between the battery module 3 and the housing 1, and the air flow channels 5 are straight channels, so that the air can be successfully blown when the cool air flows through the air duct, and the flow of the air flow can be better matched, thereby improving the heat dissipation efficiency.

According to some embodiments of the present utility model, as shown in fig. 4, optionally, an air outlet 11 is formed on the housing 1 and is in communication with the fan channel 8, and the fan channel 8 is matched with the air outlet 11 for discharging the hot air d out of the housing 1. Optionally, an air outlet 11 is provided on the front surface of the housing 1, and the air outlet 11 is communicated with the fan channel 8, so as to discharge the hot air d to the outside of the housing 1.

According to some embodiments of the present utility model, as shown in fig. 4 and 5, optionally, the casing 1 is provided with more than two air inlets 12 spaced along the first direction a on the opposite side of the fan 2, and one air inlet 12 corresponds to one air flow channel 5.

The housing 1 is provided with air inlets 12 spaced apart along a first direction (indicated by a in fig. 4) on the opposite side of the fan 2, and alternatively, the air inlets 12 may be a plurality of inlets or one inlet. One air inlet 12 corresponds to one air flow channel 5. When in actual use, the fan 2 discharges the hot air in the air flow channel 5 to the outside of the shell 1 through the fan channel 8, the air flow channel 5 generates negative pressure, cold air is sucked into the air flow channel 5, and the heat generated by the battery module 3 is taken away when the cold air flows through the air flow channel 5.

According to some embodiments of the present utility model, optionally, the battery module 3 includes more than two first electric cells, the more than two first electric cells are distributed at intervals along the first direction a, and an airflow channel 5 is provided between the adjacent first electric cells and/or between the first electric cells and the housing 1.

The battery module 3 comprises more than two first electric cores, the more than two first electric cores are distributed at intervals along the first direction a, and an air flow channel 5 is arranged between the adjacent first electric cores. I.e. the first cell compartment is provided with an air flow channel 5. In some embodiments, to better assist in heat dissipation, an air flow channel 5 is also provided between the first cell and the housing 1.

According to some embodiments of the present utility model, optionally, as shown in fig. 5, the battery module 3 includes two or more second electric cells 31 and two or more third electric cells 32 distributed along the second direction b, where the two or more second electric cells 31 and the two or more third electric cells 32 are all distributed at intervals along the first direction a, and the intervals are the same; the airflow channel 5 comprises a first airflow channel 51 and a second airflow channel 52, a first airflow channel 51 is arranged between the second electric cores 31 arranged adjacently and/or between the second electric cores 31 and the shell 1, a second airflow channel 52 is arranged between the third electric cores 32 arranged adjacently and/or between the third electric cores 32 and the shell 1, and the first airflow channel 51 is communicated with the second airflow channel 52.

The battery module 3 may further include two or more second electric cells 31 and two or more third electric cells 32 distributed along the second direction (the direction indicated by b in fig. 5), the second electric cells 31 and the third electric cells 32 are all distributed at intervals along the first direction (the direction indicated by a in fig. 5), and the interval distance between the second electric cells 31 is the same as the interval distance between the third electric cells 32. That is, the second cells 31 distributed in the second direction (the direction indicated by b in fig. 5) are disposed corresponding to the third cells 32. In some embodiments, the second cells 31 and the third cells 32 distributed along the second direction (as indicated by b in fig. 5) are spaced apart under the action of the fixing frame 4.

The air flow channel 5 comprises a first air flow channel 51 and a second air flow channel 52, optionally the first air flow channel 51 and the second air flow channel 52 are positioned on the same straight line. The first air flow passage 51 communicates with the second air flow passage 52 to form the air flow passage 5. Specifically, a first air flow channel 51 is disposed between the second cells 31 disposed adjacently, and a second air flow channel 52 is disposed between the third cells 32 disposed adjacently. In other embodiments, to better assist in heat dissipation, a first airflow channel 51 is provided between the second battery cell 31 and the housing 1, and a second airflow channel 52 is provided between the third battery cell 32 and the housing 1.

According to some embodiments of the utility model, optionally, as shown in fig. 5, the air flow channel 5 is arranged parallel to the second direction b.

In order to provide more air flow channels 5 in the limited space of the housing 1, the air flow channels 5 are arranged parallel to the second direction (direction indicated as b in fig. 5), which air flow channels 5 are straight channels. In other embodiments, the airflow channel 5 may be inclined to the second direction (the direction indicated by b in fig. 5), and the inclination angle depends on the actual situation.

According to some embodiments of the utility model, alternatively, as shown in fig. 6, the aperture of the fan channel 8 increases gradually from left to right. In order to better discharge the hot air d out of the casing 1, the blower passage 8 is further provided to extend in the first direction (as indicated by a in fig. 4), and the aperture of the blower passage 8 is gradually increased from left to right to improve the efficiency of discharging the hot air d.

According to some embodiments of the utility model, the fan 2 optionally comprises an axial fan 2 or a centrifugal fan 2. The driving power of the blower 2 may be a direct current power or an alternating current power.

Compared with the prior art, the technical scheme aims at solving the problem that the corner air duct exists in the prior art, and the air duct in the battery pack is set to be a straight channel. Specifically, there are two or more air flow channels 5 extending in the second direction b in the battery module 3 and/or between the battery module 3 and the housing 1, and the air flow channels 5 are straight channels, so that the air can be successfully blown when the cool air flows through the air duct, and the flow of the air flow can be better matched, thereby improving the heat dissipation efficiency.

Finally, it should be noted that, although the embodiments have been described in the text and the drawings, the scope of the utility model is not limited thereby. The technical scheme generated by replacing or modifying the equivalent structure or equivalent flow by utilizing the content recorded in the text and the drawings of the specification based on the essential idea of the utility model, and the technical scheme of the embodiment directly or indirectly implemented in other related technical fields are included in the patent protection scope of the utility model.

Claims (10)

1. An energy storage battery, comprising:

a housing;

the fan is arranged on one side of the shell, a fan channel is arranged below the fan, the fan channel extends along a first direction, and the fan channel is used for discharging hot air;

the battery module is installed in the casing, the battery module is interior and/or the battery module with have more than two along the air current passageway that the second direction extends to set up between the casing, the air current passageway with the fan passageway is linked together, the air current passageway is used for the cold supply wind to get into or the hot supply wind discharges to the fan passageway.

2. The energy storage battery of claim 1, wherein the housing is provided with an air outlet in communication with the fan channel, and the fan channel is matched with the air outlet for supplying hot air to be discharged out of the housing.

3. The energy storage battery of claim 1, wherein the housing is provided with more than two air inlets spaced apart along a first direction on the opposite side of the fan, one air inlet corresponding to each air flow channel.

4. The energy storage battery of claim 1, further comprising a mount through which the battery module is mounted within the housing.

5. The energy storage battery according to claim 1, wherein the battery module comprises more than two first electric cells, the more than two first electric cells are distributed at intervals along the first direction, and the airflow channels are arranged between the adjacent first electric cells and/or between the first electric cells and the shell.

6. The energy storage battery according to claim 1, wherein the battery module comprises more than two second electric cores and more than two third electric cores distributed along the second direction, wherein the more than two second electric cores and the more than two third electric cores are distributed at intervals along the first direction, and the intervals are the same;

the air flow channels comprise first air flow channels and second air flow channels, the first air flow channels are arranged between the second electric cores and/or between the second electric cores and the shell in an adjacent mode, the second air flow channels are arranged between the third electric cores and/or between the third electric cores and the shell in an adjacent mode, and the first air flow channels are communicated with the second air flow channels.

7. The energy storage cell of claim 1, wherein the airflow channel is disposed parallel to the second direction.

8. The energy storage cell of claim 1, wherein the blower channel increases in caliber from left to right.

9. The energy storage battery of claim 1, wherein more than two heat dissipation holes are further formed above the housing.

10. The energy storage cell of claim 1, wherein the fan comprises an axial fan or a centrifugal fan.