Battery cluster with heat dissipation structure

Abstract

The invention relates to the technical field of energy storage battery clusters, in particular to a battery cluster with a heat dissipation structure, the battery cluster comprises at least one battery frame with a plurality of rows and a plurality of columns, batteries are installed in the battery frame, a shunting assembly is arranged at the top of the battery frame, the shunting assembly comprises a first air duct, a plurality of ventilation cavities and a plurality of first plate bodies, a plurality of air outlets are formed in the inner wall of the first air duct in the first direction, a ventilation cavity is correspondingly formed in each air outlet, each ventilation cavity comprises a first folded plate and a first shell, part of a shell body of each first shell is bent, each first folded plate is obliquely arranged in the corresponding first shell, and airflow passes through the first folded plates and the bent parts of the first shells correspondingly; the output end of the ventilation cavity is connected with the first plate body, and the first plate body outputs the airflow so as to realize uniform heat dissipation of the battery.

Description

Technical Field

[0001] The present application relates to the technical field of energy storage battery clusters, and in particular to a battery cluster with a heat dissipation structure. Background Art

[0002] Energy storage thermal management technology is one of the key technologies to ensure efficient and safe operation of energy storage systems. With the development of renewable energy and the popularization of distributed energy systems, energy storage systems play an increasingly important role in power systems. However, in the process of energy storage, since the energy conversion efficiency is not 100%, a certain amount of heat will be generated. If this heat cannot be effectively managed, it may cause battery performance to deteriorate and even cause safety accidents. Therefore, the development of energy storage thermal management technology is crucial.

[0003] In the prior art, a fan is installed at the air duct of the battery. The fan draws in cold air from the air inlet and guides it through the air duct, so that the cold air flows through the battery pack and exchanges heat with the heat generated by the battery. The hot air after the exchange is discharged from the air outlet to achieve the effect of heat dissipation.

[0004] However, after the high-speed cold air enters the air duct, the air volume distribution of the top battery air duct and the bottom battery air duct cannot be guaranteed, resulting in a large temperature difference inside the single battery; by only installing fans and air ducts, the cooling air flow is not discharged evenly and cannot cover the surface of all batteries, resulting in poor heat dissipation effect. Summary of the invention

[0005] In order to solve the problems involved in the above background technology, solve the problem of uneven cold air discharge, and achieve the purpose of improving the heat dissipation effect. A battery cluster with a heat dissipation structure includes at least one battery frame with a plurality of rows and columns, batteries are installed in the battery frame, a shunt assembly is provided on the top of the battery frame, the shunt assembly includes a first air duct and a plurality of ventilation cavities and a plurality of first plates, the inner wall of the first air duct is provided with a plurality of air outlets along a first direction, each air outlet is correspondingly provided with a ventilation cavity, the output end of the ventilation cavity is connected to the first plate, and the first plate outputs airflow to achieve heat dissipation of the battery.

[0006] In this way, by setting up the first air duct, the ventilation cavity and the first plate body, the air flow passes through the first folding plate and the first shell, reducing the air flow velocity, avoiding the situation where the static pressure at the upper end of the first plate body is small and the static pressure at the lower end is large due to the excessive air flow velocity, and the air flow in the first plate body is evenly distributed. The left and right sides of the first plate body are in contact with the battery surface. The first air duct further transmits the received air flow into the first plate body through the evenly distributed air outlets. The first plate body discharges the internal air flow so that the large surface of each battery is fully cooled, thereby improving the heat dissipation effect.

[0007] According to an implementation method provided in an embodiment of the present application, the ventilation cavity includes a first folding plate and a first outer shell. The shell body of the first outer shell is partially bent, and the first folding plate is obliquely arranged in the first outer shell. The airflow passes through the first folding plate and the bent portion of the first outer shell respectively to reduce the airflow velocity and achieve uniform distribution of the airflow in the first plate body. A first hole body is opened on the first plate body, and the airflow is discharged through the first hole body to cool the battery surface.

[0008] The ventilation cavity includes a first folding plate and a first outer shell. The shell of the first outer shell is partially bent, and the first folding plate is obliquely arranged in the first outer shell. The airflow passes through the first folding plate and the bent portion of the first outer shell respectively to reduce the airflow velocity and achieve uniform distribution of the airflow in the first plate body. A first hole body is opened on the first plate body, and the airflow is discharged through the first hole body to cool the battery surface.

[0009] In this way, the first folding plate is arranged in the middle of the first shell and is fixedly connected to the lower wall of the first shell. The upper right end of the first shell is bent so that the upper right end of the ventilation cavity bulges outward, and the lower right end is flush with the left end. The airflow enters the ventilation cavity from the air outlet, and the airflow first flows through the first folding plate and then flows through the bent part of the first shell, and finally enters the first plate body. The airflow will pass through the first folding plate and the bent part of the first shell in turn, and the airflow velocity is reduced, thereby avoiding the situation where the static pressure at the upper end of the first plate body is small and the static pressure at the lower end is large due to the excessive airflow velocity, and avoiding the situation where a large amount of airflow accumulates below the first plate body.

[0010] According to an implementation method provided in an embodiment of the present application, the vertical distance between the inner wall of the first air duct and the air outlet is h1, and h1 gradually decreases along the first direction to avoid airflow accumulation at one end of the first air duct.

[0011] With such an arrangement, the inlet and outlet air flow rates of multiple ventilation cavities can remain consistent. When the airflow blows into the first air duct, it will first accumulate at the very end of the first air duct. When the space at the end is not enough to fill with more airflow, it will gradually accumulate toward the outside. When the inner airflow is consumed, the external airflow can be replenished in time, thereby achieving uniform airflow distribution inside the first air duct.

[0012] According to an implementation provided in an embodiment of the present application, the ventilation cavity further includes a sliding plate, which is arranged at a channel for connecting the first air duct outlet and the first shell, and the sliding plate slides to control the air flow rate of the outlet.

[0013] According to an implementation method provided in an embodiment of the present application, grooves are provided on both sides of the inner wall of the channel, and the sliding plate is clamped on the grooves to enable the sliding plate to slide relative to the channel.

[0014] With this arrangement, by adjusting the ventilation area of ​​the sliding plate control channel, three-stage flow adjustment of fully open, semi-open, and fully closed can be achieved, meeting the needs of use in different environments of actual projects.

[0015] According to an implementation method provided in an embodiment of the present application, the first plate body is a hollow cubic structure, and the side surface of the first plate body is in contact with the surface of the battery frame.

[0016] With such arrangement, the side surface of the first plate body fits the battery frame, which on the one hand reduces the path required for airflow transmission and reduces the loss caused by the airflow transmission process; on the other hand, the first plate body is arranged between the battery frames to save the occupied space.

[0017] According to an implementation method provided in an embodiment of the present application, a diversion cavity is connected to the air inlet of the first air duct, and the diversion cavity includes at least one notch.

[0018] With such an arrangement, the volumes of the battery frames on both sides of the diverter cavity in the present application are inconsistent, one side is a battery frame with 9 rows and 9 columns, and the other side is a battery frame with 9 rows and 6 columns. The volumes of the first air ducts equipped with the battery frames on both sides are also inconsistent. Therefore, it is necessary to provide a notch on the outer shell surface of the diverter cavity. The notch is provided at the end close to the smaller volume of the first air duct, so as to achieve inconsistent airflow flow rates distributed on both sides of the diverter cavity. Under the premise of a certain total airflow rate, it is ensured that each air outlet of the first air duct can discharge a stable and quantitative airflow, thereby ensuring the stability of heat dissipation.

[0019] According to an implementation manner provided in an embodiment of the present application, an indoor unit is connected to one end of the diversion cavity along the second direction, and the indoor unit transports cooling airflow to the diversion cavity.

[0020] With this arrangement, the air-conditioning equipment includes an indoor unit and an outdoor unit. The refrigerant in the outdoor unit dissipates heat to the outside through the fan in the condenser, and then the low-temperature and low-pressure refrigerant flows into the indoor unit to evaporate and absorb heat, bringing the indoor heat out. The cold air is discharged from the indoor unit of the air conditioner. The indoor unit has a built-in fan, and the cold air blown out by the fan is sent to the diversion chamber for diversion.

[0021] According to an implementation provided in an embodiment of the present application, the battery frame further includes an insertion box, and the insertion box is arranged between the batteries along the thickness direction of the battery frame.

[0022] With such an arrangement, the plug box can separate the batteries so that the larger surface of the battery is aligned with the path through which the air flows, thereby providing a larger heat dissipation area and improving the efficiency of heat dissipation and cooling.

[0023] According to an implementation method provided in an embodiment of the present application, a through hole is provided on the side of the plug-in box, and the first hole body on the first plate body is aligned with the through hole.

[0024] With such arrangement, the airflow is discharged from the first hole body, and the through holes on the outer wall of the plug-in box are arranged in an interval arrangement manner, thereby preventing cold air from directly blowing on the battery body.

[0025] According to an implementation method provided in an embodiment of the present application, a plurality of fans are installed on the surface of the battery frame, and the direction of the airflow generated by the fans is consistent with the thickness direction of the battery frame.

[0026] With this arrangement, the direction of the airflow generated by the fan is the front-to-back direction of the battery, and the cooling airflow entering from the side can be guided by the airflow of the fan to evenly cover the surface of the battery cell, further improving the heat dissipation effect.

[0027] The present application realizes airflow through the first folding plate and the first shell by setting the first air duct, the ventilation cavity and the first plate body, thereby reducing the airflow velocity and avoiding the situation where the static pressure at the upper end of the first plate body is small and the static pressure at the lower end is large due to excessive airflow velocity, so that the airflow in the first plate body is evenly distributed, ensuring that the static pressure at various positions inside the first plate body tends to be consistent, and the first hole body set on the side of the first plate body is aligned with the through-hole part on each battery plug-in box, ensuring that the airflow can flow to the large surface of the battery, ensuring that the flow of the fluid is evenly distributed to each layer of batteries, and improving the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0029] Figure 1 A schematic diagram of the structure of a battery cluster with a heat dissipation structure provided in an embodiment of the present application;

[0030] Figure 2 for Figure 1 A schematic diagram of the structure of the front view;

[0031] Figure 3 A schematic diagram of the structure of the connection between the ventilation cavity and the first plate provided in an embodiment of the present application;

[0032] Figure 4 This is a schematic diagram of the structure of the connection between the first plate and the battery frame provided in an embodiment of the present application.

[0033] Description of reference numerals:

[0034] 100 - flow distribution component; 110 - first air duct; 120 - ventilation cavity; 121 - first folding plate; 122 - first shell; 123 - sliding plate; 130 - first plate body; 131 - first hole body; 140 - plug-in box; 200 - flow distribution cavity.

[0035] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0037] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the present application and are not intended to limit the scope of protection of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0038] Secondly, it should be noted that in the description of the present application, terms such as "front", "rear", "left", "right", "up", "down", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present application.

[0039] In addition, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0041] Energy storage thermal management technology is one of the key technologies to ensure efficient and safe operation of energy storage systems. With the development of renewable energy and the popularization of distributed energy systems, energy storage systems play an increasingly important role in power systems. However, in the process of energy storage, since the energy conversion efficiency is not 100%, a certain amount of heat will be generated. If this heat cannot be effectively managed, it may cause battery performance to deteriorate and even cause safety accidents. Therefore, the development of energy storage thermal management technology is crucial.

[0042] In the prior art, a fan is installed at the air duct of the battery. The fan draws in cold air from the air inlet and guides it through the air duct, so that the cold air flows through the battery pack and exchanges heat with the heat generated by the battery. The hot air after the exchange is discharged from the air outlet to achieve the effect of heat dissipation.

[0043] Moreover, in the existing energy storage air cooling solution, the cold air passes over the narrow surface of the battery to perform convection heat exchange, which reduces the convection heat exchange area and the heat exchange amount.

[0044] However, after the high-speed cold air enters the air duct, the air volume distribution of the top battery air duct and the bottom battery air duct cannot be guaranteed, resulting in a large temperature difference inside the single battery; by only installing fans and air ducts, the cooling air flow is not discharged evenly and cannot cover the surface of all batteries, resulting in poor heat dissipation effect.

[0045] This patent intends to add independent air ducts to the large surface of the battery cells in the battery module, and then integrate these battery modules with independent air ducts on a battery rack with special air ducts, and connect them to the air inlet and outlet interfaces of the battery rack to form an independent and effective cooling air duct.

[0046] Attached Figure 1 A schematic diagram of a battery cluster with a heat dissipation structure provided in an embodiment of the present application, Figure 2 for Figure 1 Structural diagram of the front view, attached Figure 3 Schematic diagram of the structure of the ventilation cavity connected to the first plate provided in the embodiment of the present application, Figure 4 This is a schematic diagram of the structure of the connection between the first plate and the battery frame provided in an embodiment of the present application.

[0047] like Figure 1 , Figure 2 , Figure 3As shown, a battery cluster with a heat dissipation structure includes at least one battery frame with a plurality of rows and columns, batteries are installed in the battery frame, a shunt component 100 is provided on the top of the battery frame, the shunt component 100 includes a first air duct 110 and a plurality of ventilation cavities 120 and a plurality of first plates 130, a plurality of air outlets are provided on the inner wall of the first air duct 110 along a first direction, a ventilation cavity 120 is correspondingly provided at each air outlet, an output end of the ventilation cavity 120 is connected to the first plate 130, and the first plate 130 outputs airflow to achieve heat dissipation for the battery.

[0048] The ventilation cavity 120 includes a first folding plate 121 and a first outer shell 122. Part of the shell of the first outer shell 122 is bent, and the first folding plate 121 is tilted in the first outer shell 122. The airflow passes through the first folding plate 121 and the bent parts of the first outer shell 122 respectively to reduce the airflow velocity and achieve uniform distribution of the airflow in the first plate body 130. The first plate body 130 is provided with a first hole body 131, and the airflow is discharged through the first hole body 131 to cool the battery surface.

[0049] It should be noted that the embodiment of the present application involves at least two battery frames, one of which has 9 rows and 9 columns, and the other has 9 rows and 6 columns. The two battery frames are respectively arranged on the left and right sides of the diversion cavity 200, wherein there is also a space between each column of the battery frames for setting the first plate body 130, and the left and right sides of the first plate body 130 are in contact with the battery surface, and the first air duct 110 further transmits the received airflow to the first plate body 130 through evenly distributed air outlets, and the first plate body 130 discharges the internal airflow to cool the battery.

[0050] According to an implementation method provided in an embodiment of the present application, the ventilation cavity 120 includes a first folding plate 121 and a first outer shell 122. Part of the shell of the first outer shell 122 is bent, and the first folding plate 121 is obliquely arranged in the first outer shell 122. The airflow passes through the first folding plate 121 and the bent portion of the first outer shell 122 respectively to reduce the airflow velocity and achieve uniform distribution of the airflow in the first plate body 130. A first hole body 131 is opened on the first plate body 130, and the airflow is discharged through the first hole body 131 to cool the battery surface.

[0051] It should be noted that the first folding plate 121 is arranged in the middle of the first shell 122 and is fixedly connected to the lower wall of the first shell 122. The upper right end of the first shell 122 is bent so that the upper right end of the ventilation cavity 120 bulges outward, and the lower right end is flush with the left end. The airflow enters the ventilation cavity 120 from the air outlet, and the airflow first flows through the first folding plate 121 and then flows through the bent portion of the first shell 122, and finally enters the first plate body 130. Since the airflow passes through the first folding plate 121 and the bent portion of the first shell 122 in turn, the airflow velocity is reduced, which avoids the situation where the static pressure at the upper end of the first plate body 130 is small and the static pressure at the lower end is large due to the excessive airflow velocity, and avoids the situation where a large amount of airflow accumulates below the first plate body 130.

[0052] It is worth mentioning that when the airflow flows into the ventilation cavity 120, the airflow is converted from dynamic pressure to static pressure. The inclined setting of the first folding plate 121 can ensure the static pressure effect while reducing the resistance of the airflow.

[0053] refer to Figure 3 As shown, a first hole 131 is provided on one side of the first plate 130 that is in contact with the battery. The first hole 131 is aligned with the gap between the batteries, and the aperture of the first hole 131 is relatively small. The smaller air outlet area can ensure that the flow rate of the high-speed fluid decreases when it enters the first plate 130, and the reduced flow rate increases the static pressure of the fluid, further ensuring that the static pressure at various positions inside the first plate 130 tends to be consistent, thereby ensuring that the flow of the fluid is evenly distributed to each layer of batteries.

[0054] According to an implementation provided in an embodiment of the present application, the vertical distance between the inner wall of the first air duct 110 and the air outlet is h1, and h1 gradually decreases along the first direction to avoid airflow accumulation at one end of the first air duct 110.

[0055] It should be noted that the first air duct 110 is a trapezoidal cubic structure with a hollow interior. In the implementation provided in the embodiment of the present application, the first direction refers to the horizontal direction, and the left end spacing h1 of the first air duct 110 is the smallest. The purpose of this setting is that since the inlet and outlet air flow rates of multiple ventilation cavities 120 are consistent, when the airflow blows into the first air duct 110, it will first accumulate at the very end of the first air duct 110. When the space at the end is not enough to fill with more airflow, it will gradually accumulate toward the outside, and when the inner airflow is consumed, the external airflow can be replenished in time, thereby achieving uniform airflow distribution inside the first air duct 110.

[0056] According to an implementation provided in an embodiment of the present application, the ventilation cavity 120 also includes a sliding plate 123, which is arranged at a channel for connecting the air outlet of the first air duct 110 and the first shell 122, and the sliding plate 123 slides to control the air flow rate of the air outlet.

[0057] According to an implementation method provided in an embodiment of the present application, grooves are provided on both sides of the inner wall of the channel, and the sliding plate 123 is clamped on the grooves to enable the sliding plate 123 to slide relative to the channel.

[0058] It should be noted that the sliding plate 123 can slide relative to the channel. By adjusting the sliding plate 123 to control the ventilation area of ​​the channel, three-stage flow adjustment of fully open, semi-open and fully closed can be achieved to meet the needs of use in different environments of actual projects.

[0059] According to an implementation method provided in an embodiment of the present application, the first plate body 130 is a hollow cubic structure, and the side surface of the first plate body 130 is in contact with the surface of the battery frame.

[0060] It should be noted that the first plate 130 is arranged to fit the battery frame, which reduces the path that the airflow needs to pass through and reduces the loss of the airflow along the path.

[0061] According to an implementation method provided in an embodiment of the present application, a diversion cavity 200 is connected to the air inlet of the first air duct 110, and the diversion cavity 200 may also include at least one notch.

[0062] It should be noted that, in the implementation mode provided in the embodiment of the present application, at least two battery frames are provided, which are respectively located at the left and right ends of the diversion chamber 200, and the airflow is discharged from the indoor unit below the diversion chamber 200. The diversion chamber 200 is a hollow cubic structure. The airflow is diverted on both sides through the diversion chamber 200 and further flows into the first air ducts 110 on both sides. Since the volumes of the battery frames located on both sides of the diversion chamber 200 in the present application are inconsistent, one side is a battery frame with 9 rows and 9 columns, and the other side is a battery frame with 9 rows and 6 columns, the volumes of the first air ducts 110 equipped with the battery frames on both sides are also inconsistent. Therefore, it is necessary to provide a notch on the outer shell surface of the diversion chamber 200, and the notch is provided at the end close to the small volume of the first air duct 110, so as to achieve uniform distribution of the airflow flow in the first air duct 110 on the left and right sides of the diversion chamber 200.

[0063] According to an implementation manner provided in an embodiment of the present application, an indoor unit is connected to one end of the diversion cavity 200 along the second direction, and the indoor unit delivers cooling airflow to the diversion cavity 200.

[0064] It should be noted that an air-conditioning device is also provided in the present application, and the air-conditioning device includes an indoor unit and an outdoor unit. The refrigerant in the outdoor unit dissipates heat to the outside through a fan in the condenser, and then the low-temperature and low-pressure refrigerant flows into the indoor unit to evaporate and absorb heat, bringing out the indoor heat, and the cold air is discharged from the indoor unit of the air-conditioning. The indoor unit has a built-in fan, and the cold air blown out by the fan is sent to the diversion chamber 200 for diversion.

[0065] It is worth mentioning that the indoor unit also includes an indoor unit return air outlet, which is used to return the indoor air.

[0066] Reference Figure 4 As shown, according to an implementation provided by an embodiment of the present application, the battery frame further includes an insert box 140, and the insert box 140 is arranged between the batteries along the thickness direction of the battery frame.

[0067] According to an implementation method provided in the embodiment of the present application, a through hole is opened on the side of the plug-in box 140 , and the first hole 131 on the first plate 130 is aligned with the through hole.

[0068] It should be noted that in the implementation mode provided in the embodiment of the present application, the shape of the first hole body 131 can be circular or rectangular, wherein the specific opening size of the first hole body 131 can be adjusted according to the air volume of the air-conditioning equipment.

[0069] It is worth mentioning that in the implementation method provided in the embodiment of the present application, the number of the first hole bodies 131 is set to 20-24, the air flow is discharged from the first hole bodies 131, and the through holes on the outer wall of the plug box 140 are arranged in an interval setting manner to avoid cold air blowing directly on the battery body.

[0070] According to an implementation method provided in an embodiment of the present application, a plurality of fans are installed on the surface of the battery frame, and the direction of the airflow generated by the fans is consistent with the thickness direction of the battery frame.

[0071] It should be noted that the direction of the airflow generated by the fan is the front-to-back direction of the battery, and the cooling airflow entering from the side can be guided by the airflow of the fan to evenly cover the surface of the battery cell, further improving the heat dissipation effect.

[0072] Furthermore, by providing the first air duct 110, the ventilation cavity 120 and the first plate body 130, the airflow passes through the first folding plate 121 and the first shell 122, thereby reducing the airflow velocity, avoiding the situation where the static pressure at the upper end of the first plate body 130 is small and the static pressure at the lower end is large due to the excessive airflow velocity, making the airflow in the first plate body 130 evenly distributed, ensuring that the static pressure at various positions inside the first plate body 130 tends to be consistent, and the first hole body 131 provided on the side of the first plate body 130 is aligned with the through hole part on each battery plug-in box, ensuring that the airflow can flow to the large surface of the battery, ensuring that the flow rate of the fluid is evenly distributed to each layer of batteries, improving the heat dissipation effect, and a fan is provided between the batteries, the fan can guide the horizontal airflow to further diffuse to various vertical directions, further expanding the heat dissipation area of ​​the airflow.

[0073] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the application disclosed herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present application are indicated by the following claims.

[0074] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A battery cluster with a heat dissipation structure, comprising at least one battery frame having a plurality of rows and columns, wherein batteries are installed in the battery frame, characterized in that: A flow shunt assembly (100) is provided on the top of the battery frame, the flow shunt assembly (100) comprising a first air duct (110), a plurality of ventilation cavities (120) and a plurality of first plates (130), the inner wall of the first air duct (110) being provided with a plurality of air outlets along a first direction, each air outlet being provided with a corresponding ventilation cavity (120), the output end of the ventilation cavity (120) being connected to the first plate (130), the first plate (130) outputting airflow to achieve heat dissipation for the battery, The ventilation cavity (120) comprises a first folding plate (121) and a first shell (122); a portion of the first shell (122) is bent; the first folding plate (121) is obliquely arranged in the first shell (122); airflow passes through the first folding plate (121) and the bent portion of the first shell (122) respectively, so as to reduce the airflow velocity and realize uniform distribution of the airflow in the first plate body (130); The first plate (130) is provided with a first hole (131), and air flow is discharged through the first hole (131) to cool the surface of the battery.

2. A battery cluster with a heat dissipation structure according to claim 1, characterized in that: The vertical distance between the inner wall surface of the first air duct (110) and the air outlet is h1, and h1 gradually decreases along the first direction to avoid airflow accumulation at one end of the first air duct (110).

3. The battery cluster with a heat dissipation structure according to claim 1, characterized in that: The ventilation cavity (120) further comprises a sliding plate (123), wherein the sliding plate (123) is arranged at a passage for connecting the air outlet of the first air duct (110) and the first housing (122), and the sliding plate (123) slides to control the air flow rate of the air outlet.

4. The battery cluster with a heat dissipation structure according to claim 3, characterized in that: Grooves are provided on both sides of the inner wall of the channel, and the sliding plate (123) is clamped on the grooves to enable the sliding plate (123) to slide relative to the channel.

5. The battery cluster with a heat dissipation structure according to claim 1, characterized in that: The first plate body (130) is a hollow cubic structure, and the side surface of the first plate body (130) is in contact with the surface of the battery frame.

6. The battery cluster with a heat dissipation structure according to claim 1, characterized in that: The air inlet of the first air duct (110) is connected to a diversion cavity (200) and / or, The diversion cavity (200) comprises at least one notch.

7. The battery cluster with a heat dissipation structure according to claim 6, characterized in that: An indoor unit is connected to one end of the flow diversion chamber (200) along the second direction, and the indoor unit delivers cooling airflow to the flow diversion chamber (110).

8. The battery cluster with a heat dissipation structure according to claim 1, characterized in that: The battery frame further comprises an insert box (140), wherein the insert box (140) is arranged between the batteries along the thickness direction of the battery frame.

9. The battery cluster with a heat dissipation structure according to claim 8, characterized in that: Through holes are provided at intervals on the side of the insertion box (140), and the first holes (131) on the first plate (130) are aligned with the through holes.

10. The battery cluster with a heat dissipation structure according to claim 1, characterized in that: A plurality of fans are installed on the surface of the battery frame, and the airflow direction generated by the fans is consistent with the thickness direction of the battery frame.

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