CN220652135U - Insulation can for energy storage battery and energy storage battery - Google Patents

Abstract

The utility model provides an insulating box for energy storage batteries and an energy storage battery. The thermal insulation box for energy storage batteries includes: a shell, including an inner shell and an outer shell arranged around the inner shell; the inner shell encloses an installation cavity for installing the energy storage battery; at least part of the inner shell and at least part of the outer shell have a third a vacuum chamber; a reinforcing structure, the reinforcing structure is arranged in the first vacuum chamber, one end of the reinforcing structure is connected to the inner shell, and the other end of the reinforcing structure is connected to the outer shell; and a sealing structure, including a seal that can be detachably sealingly connected to the shell cover to seal the mounting cavity. The thermal insulation box for energy storage batteries according to the technical solution of the present invention can solve the problems of poor structural strength and thermal insulation effect of existing battery thermal insulation shells.

Description

Insulation box and energy storage battery for energy storage battery

Technical field

The utility model relates to the technical field of energy storage batteries, specifically to an insulating box for energy storage batteries and an energy storage battery.

Background technique

Energy storage batteries mainly refer to batteries used in solar power generation equipment, wind power generation equipment, and renewable energy storage. The characteristics of energy storage batteries determine that the battery activity will be lost in low-temperature environments, resulting in a reduction in the energy storage effect of the battery, especially energy storage batteries used in wind power generation equipment. In order to better obtain wind energy, wind power generation equipment generally installs power generation equipment in higher places. The temperature at high places is relatively low, especially in winter, the temperature will be even lower. However, the existing battery insulation shell The thermal insulation effect is poor, causing the energy storage battery to be unable to store energy effectively. At the same time, the structural strength of the battery insulation shell is also poor, and it is easy to deform after being compressed.

Utility model content

The main purpose of this utility model is to provide an insulating box for energy storage batteries and an energy storage battery, which can solve the problems of poor structural strength and thermal insulation effect of existing battery insulating shells.

In order to achieve the above object, according to one aspect of the present invention, an insulating box for energy storage batteries is provided, which includes: a shell, an inner shell and an outer shell arranged around the inner shell. The inner shell is enclosed for installing energy storage cells. The installation cavity of the battery has a first vacuum chamber between at least part of the inner shell and at least part of the outer shell; a reinforcing structure, the reinforcing structure is arranged in the first vacuum chamber, one end of the reinforcing structure is connected to the inner shell, and the other end of the reinforcing structure is connected to the outer shell connection; and a sealing structure, including a sealing cover that can be detachably and sealingly connected with the housing to seal the installation cavity.

Further, the number of reinforcing structures is multiple, and the multiple reinforcing structures are arranged in the first vacuum chamber at intervals along the circumferential direction of the inner shell.

Further, the reinforcing structure is provided with a through groove communicating with the first vacuum chamber; or the outer shell is set around the outer periphery of the inner shell, and an annular first vacuum chamber is formed between the inner shell and the outer shell, and the first vacuum chamber is filled with Inert gas.

Further, the thermal insulation box for energy storage batteries also includes a support structure, the support structure is arranged in the installation cavity, and the sealing cover is configured to be connected to the support structure.

Further, the number of support structures is two, and the two support structures are spaced apart at both ends of the installation cavity along the first direction. The support structure is provided with a first connection hole, and the sealing cover is provided with a second connection hole. The connection holes and the second connection holes are arranged in one-to-one correspondence. The insulation box for the energy storage battery also includes a locking piece. The locking piece is inserted into the second connection hole and the first connection hole in order to connect the sealing cover and the support structure.

Further, the sealing structure further includes a sealing boss, which is disposed on a side of the sealing cover facing the housing, and the sealing boss is configured to be inserted into the installation cavity and contact the top of the support structure.

Furthermore, the insulation box for energy storage batteries further includes a plurality of electrode separators, the plurality of electrode separators are spaced apart in the installation cavity along the first direction, and the height of the electrode separators is smaller than the height of the support structure.

Further, the sealing cover has a second vacuum chamber, and the second vacuum chamber is filled with inert gas.

Further, the sealing cover is provided with electrodes capable of being connected to the energy storage battery.

According to another aspect of the present invention, an energy storage battery is also provided, including: a battery core; and the above-mentioned insulating box for energy storage batteries, where the battery core is installed in the insulating box for energy storage batteries.

Applying the technical solution of the present invention, an inner shell, an outer shell, a sealing structure and a reinforcing structure are provided. A first vacuum chamber is formed between the inner shell and the outer shell. The arrangement of the first vacuum chamber can reduce the heat transfer by the hot air outside the shell. to the inside of the casing, which has a certain thermal insulation effect. The setting of the first vacuum chamber can also reduce the rate at which the heat inside the casing is transferred to the outside of the casing, reduce the loss of heat inside the casing, and play a role in thermal insulation. This reduces the impact of the external temperature of the casing on the internal temperature of the casing, so that the insulating box for energy storage batteries has a good thermal insulation effect, thereby enabling the energy storage battery installed in the installation cavity to effectively store energy. In addition, the reinforcing structure is arranged in the first vacuum chamber, and the reinforcing structure is supported between the inner shell and the outer shell, which can enhance the structural strength of the first vacuum chamber, and can also enhance the structural strength and deformation resistance of the shell, preventing the shell from Deforms inward after being compressed.

Description of drawings

The description and drawings that constitute a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation of the present utility model. In the attached picture:

Figure 1 shows a schematic structural diagram of an energy storage battery according to an embodiment of the present invention;

Figure 2 shows a cross-sectional view of an energy storage battery according to an embodiment of the present invention;

Figure 3 shows a partial cross-sectional view of the thermal insulation box for energy storage batteries according to the embodiment of the present invention; and

Figure 4 shows a partial cross-sectional view of the thermal insulation box for energy storage batteries according to the embodiment of the present invention.

Among them, the above-mentioned drawings include the following reference signs:

10. Shell; 11. Inner shell; 12. Outer shell; 20. Installation cavity; 30. First vacuum chamber; 40. Reinforcement structure; 41. Through slot; 50. Sealing structure; 51. Sealing cover; 52. Second Connection hole; 53. Sealing boss; 60. Support structure; 61. First connection hole; 70. Electrode separator; 80. Electrode; 90. Battery core.

Detailed ways

It should be noted that, as long as there is no conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The utility model will be described in detail below with reference to the accompanying drawings and embodiments.

Referring to Figures 1 to 4, the utility model provides an insulating box for energy storage batteries. The insulating box for energy storage batteries includes: a casing 10, an inner shell 11 and an outer shell arranged around the inner shell 11. 12. The inner shell 11 encloses an installation cavity 20 for installing energy storage batteries. There is a first vacuum chamber 30 between at least part of the inner shell 11 and at least part of the outer shell 12; a reinforcing structure 40 is provided in the first vacuum chamber. 30, one end of the reinforcing structure 40 is connected to the inner shell 11, and the other end of the reinforcing structure 40 is connected to the outer shell 12; and the sealing structure 50 includes a sealing cover 51 that can be detachably and sealingly connected to the housing 10 to seal the installation cavity. 20.

In this embodiment, the installation cavity 20 can be used to install energy storage batteries, and a first vacuum chamber 30 is formed between the inner shell 11 and the outer shell 12. When the external temperature of the shell 10 is higher than the internal temperature of the shell 10, the first vacuum cavity The setting of 30 can reduce the rate at which the hot air outside the shell 10 transfers heat to the inside of the shell 10, and has a certain heat insulation effect. When the external temperature of the shell 10 is lower than the internal temperature of the shell 10, the first vacuum chamber 30 The arrangement can also reduce the rate of heat transfer from the inside of the housing 10 to the outside of the housing 10, reduce the loss of heat inside the housing 10, and play a role in thermal insulation. It can be seen from the above that the arrangement of the first vacuum chamber 30 can reduce the influence of the external temperature of the housing 10 on the internal temperature of the housing 10, so that the insulating box for energy storage batteries has a good thermal insulation effect, so that it can be installed in the installation cavity 20 The energy storage battery can effectively store energy. The reinforcing structure 40 is disposed in the first vacuum chamber 30. The reinforcing structure 40 is supported between the inner shell 11 and the outer shell 12, which can enhance the structural strength of the first vacuum chamber 30, and can also enhance the structural strength and deformation resistance of the shell 10. performance to prevent the shell 10 from deforming inwardly after being compressed.

In one embodiment, the outer shell 12 is set around the outer periphery of the inner shell 11 , and an annular first vacuum chamber 30 is formed between the inner shell 11 and the outer shell 12 . The first vacuum chamber 30 is filled with inert gas. At this time, the first vacuum chamber 30 surrounds the entire inner shell 11 , that is, the outer shell 12 is placed around the outer periphery of the inner shell 11 , and there is a certain gap between the inner shell 11 and the outer shell 12 . The first vacuum chamber 30 can accommodate more inert gas. The inert gas surrounds the outer periphery of the inner shell 11 and can minimize the rate of external heat transfer to the installation cavity 20 and the transfer of heat in the installation cavity 20 to the shell 10 . The external speed and thermal insulation effect are better.

In one embodiment, the first vacuum chamber 30 can be filled with inert gas or aerogel. The inert gas or aerogel can further reduce the loss of heat inside the housing 10 and the transfer of heat from outside the housing 10 to the inside of the housing 10 . speed, the thermal insulation effect is better. Moreover, when spontaneous combustion occurs inside the energy storage battery and the inner shell 11 is damaged, the inert gas in the first vacuum chamber 30 enters the installation cavity 20 through the breach, reducing the combustion rate of the energy storage battery, thereby improving the use of the energy storage battery. Safety in the process.

Referring to FIGS. 1 to 4 , in one embodiment of the present invention, the number of reinforcing structures 40 is multiple, and the multiple reinforcing structures 40 are arranged in the first vacuum chamber 30 at intervals along the circumferential direction of the inner shell 11 . The reinforcing structure 40 is provided with a through groove 41 communicating with the first vacuum chamber 30 .

In this embodiment, the first vacuum chamber 30 is filled with inert gas, and a plurality of reinforcing structures 40 are arranged in the first vacuum chamber 30 at intervals along the circumferential direction of the inner shell 11 , which can enhance the structural strength of the first vacuum chamber 30 , to prevent the thermal insulation box for energy storage batteries from being deformed by external forces during installation or use. A plurality of reinforcing structures 40 divide the first vacuum chamber 30 into a plurality of sub-vacuum chambers, and each reinforcing structure 40 is provided with a through slot 41. The arrangement of the through slot 41 can connect all sub-vacuum chambers, thereby allowing multiple sub-vacuum chambers to be connected. The inert gases in the chamber can circulate with each other. When spontaneous combustion occurs inside the energy storage battery and the inner shell 11 is damaged, since the sub-vacuum chambers are interconnected, all the inert gases in the first vacuum chamber 30 can flow into the installation. In the cavity 20, the combustion rate of the energy storage battery is reduced, and the safety of the energy storage battery during use is improved.

In one embodiment, the height of the reinforcing structure 40 is the same as the height of the first vacuum chamber 30 , which can further enhance the structural strength of the first vacuum chamber 30 .

Referring to FIGS. 1 to 4 , in one embodiment of the present invention, the insulating box for energy storage batteries further includes a support structure 60 , the support structure 60 is disposed in the installation cavity 20 , and the sealing cover 51 is configured to be able to cooperate with the support structure 60 . Structure 60 connections.

In this embodiment, the support structure 60 is fixedly installed in the installation cavity 20 , for example, the support structure 60 and the inner shell 11 are welded together. The height of the support structure 60 is less than the height of the side wall of the inner shell 11 , and the sealing cover 51 is close to the shell. One end of 10 extends into the installation cavity 20 and is fixedly connected with the support structure 60 to seal the installation cavity 20 .

Furthermore, a sealing gasket is provided at the sealing place between the housing 10 and the sealing cover 51, so that the sealing performance is better.

In one embodiment, the inner shell 11 and the outer shell 12 are rectangular shell structures.

Referring to FIGS. 1 to 4 , in one embodiment of the present invention, the number of support structures 60 is two. The two support structures 60 are spaced apart along the first direction at both ends of the installation cavity 20 . The support structures 60 A first connection hole 61 is provided on the sealing cover 51 and a second connection hole 52 is provided on the sealing cover 51. The first connection hole 61 and the second connection hole 52 are provided in one-to-one correspondence. The insulation box for energy storage batteries also includes a plurality of locking parts. , each locking piece is inserted into the corresponding second connection hole 52 and the first connection hole 61 in order to connect the sealing cover 51 and the support structure 60 .

In this embodiment, two support structures 60 are provided at both ends of the installation cavity 20. The support structures 60 are provided with a first connection hole 61, and the sealing cover 51 is provided with a second connection hole 52 at a corresponding position. The locking member The second connection hole 52 and the first connection hole 61 are drilled in sequence to firmly connect the sealing cover 51 and the support structure 60 together to achieve sealing of the installation cavity 20 .

Specifically, the first connection hole 61 is a threaded hole, and the locking member is a bolt.

In one embodiment, a second connection hole 52 is provided at four corners of the sealing cover 51 , and two first connection holes 61 are provided on each support structure 60 . The second connection holes 52 on the sealing cover 51 are connected to The first connection holes 61 on the support structure 60 correspond one to one, and the locking parts pass through the second connection holes 52 and the first connection holes 61 in sequence to fixedly connect the sealing cover 51 and the support structure 60 together to achieve the installation cavity 20 of seal.

Referring to FIGS. 1 to 4 , in one embodiment of the present invention, the sealing structure 50 further includes a sealing boss 53 . The sealing boss 53 is disposed on the side of the sealing cover 51 facing the housing 10 . The sealing boss 53 Constructed to be inserted into the mounting cavity 20 and in contact with the top of the support structure 60 .

In this embodiment, the support structure 60 can support the sealing boss 53 , the second connection through hole on the sealing cover 51 penetrates the sealing boss 53 , and the locking member passes through the second connection hole 52 and the first connection hole in sequence. 61, the sealing cover 51 can be fixedly connected to the support structure 60 to seal the installation cavity 20. Among them, the sealing cover 51 is adapted to the housing 10. When the sealing cover 51 seals the housing 10, the sealing cover 51 can cover the top of the housing 10, and the sealing effect is better. The sealing boss 53 is inserted into the installation cavity 20, and the sealing The side wall of the boss 53 fits the side wall of the inner shell 11 , the bottom of the seal boss 53 overlaps the top of the support structure 60 , and the first connection hole 61 on the support structure 60 and the second connection hole 61 on the seal cover 51 The connecting holes 52 correspond one to one. Through the above arrangement, when the top of the sealing cover 51 is subjected to external force, the support structure 60 can support the sealing boss 53, thereby preventing the sealing boss 53 from being pressed into the interior of the housing 10 and crushing the energy storage in the installation cavity 20. Battery.

In one embodiment, the projected area of the sealing cover 51 is equal to the projected area of the shell 12 , that is to say, the sealing cover 51 can cover the shell 12 , and the projected area of the sealing boss 53 is the area enclosed by the inner wall of the inner shell 11 The projected areas are equal, that is to say, the sealing boss 53 can just cover the installation cavity 20 .

Referring to FIGS. 1 to 4 , in one embodiment of the present invention, the insulating box for energy storage batteries further includes a plurality of electrode separators 70 , and the plurality of electrode separators 70 are located between two support structures 60 and along the The first direction is spaced apart in the installation cavity 20 , and the height of the electrode separator 70 is smaller than the height of the support structure 60 .

In this embodiment, the electrode separator 70 divides the installation cavity 20 into a plurality of small sub-installation cavities. Each sub-installation cavity can be installed with an energy storage battery cell. The electrode separator 70 can separate the energy storage battery cells. , when one of the energy storage battery cells spontaneously ignites, the electrode separator 70 can prevent the fire from spreading further.

Furthermore, the height of the electrode separator 70 is smaller than the height of the support structure 60 , and the sealing boss 53 of the sealing cover 51 overlaps with the support structure 60 , which can prevent the sealing cover 51 from deforming into the housing 10 when it is subjected to external force, causing the electrode separator to deform. 70 extrusion deformation.

In one embodiment of the present invention, the sealing cover 51 has a second vacuum chamber, and the second vacuum chamber is filled with inert gas.

In this embodiment, the sealing cover 51 has a second vacuum chamber, and the second vacuum chamber is filled with inert gas, which can not only prevent the heat outside the housing 10 from being transferred to the installation cavity 20 of the housing 10 through the sealing cover 51, but also It can prevent the heat in the installation cavity 20 from dissipating through the sealing cover 51, and further improve the thermal insulation effect of the box. Through the above arrangement, the energy storage battery installed in the installation cavity 20 can effectively store energy.

In an embodiment not shown in the figure, a honeycomb-shaped partition is provided in the second vacuum chamber of the sealing cover 51 to support the second vacuum chamber, increase the overall structural strength of the sealing cover 51, and prevent the sealing cover from 51 is deformed due to force.

Referring to FIGS. 1 to 4 , in one embodiment of the present invention, the sealing cover 51 is provided with electrodes 80 that can be connected to the energy storage battery.

In this embodiment, the energy storage battery includes a plurality of cells 90. The sealing cover 51 is provided with electrodes 80, and the electrodes 80 are connected to the electrodes of the cells 90, for example, by overlapping or contacting.

Referring to Figures 1 to 4, the present utility model also provides an energy storage battery, including: a battery core 90; and the above-mentioned insulating box for energy storage batteries. The battery core 90 is installed in the insulating box for energy storage batteries. .

In this embodiment, the energy storage battery includes battery cells 90, and the specific number of battery cells 90 can be set according to actual needs. Among them, the insulating box for energy storage batteries has all the technical solutions and all the technical effects of the insulating box for energy storage batteries mentioned above, which will not be described again here.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: an inner shell, an outer shell, a sealing structure and a reinforcing structure are provided, and a first vacuum chamber is formed between the inner shell and the outer shell. The setting of a vacuum chamber can reduce the rate at which the hot air outside the casing transfers heat to the inside of the casing, and has a certain heat insulation effect. The setting up of the first vacuum chamber can also reduce the rate at which heat is transferred from the inside of the casing to the outside of the casing. , reducing the loss of heat inside the casing, can play the role of insulation, thereby reducing the impact of the external temperature of the casing on the internal temperature of the casing, so that the insulation box for energy storage batteries has a good thermal insulation effect, and thus allows it to be installed in The energy storage battery in the installation cavity can effectively store energy. In addition, the reinforcing structure is arranged in the first vacuum chamber, and the reinforcing structure is supported between the inner shell and the outer shell, which can enhance the structural strength of the first vacuum chamber, and can also enhance the structural strength and deformation resistance of the shell, preventing the shell from Deforms inward after being compressed.

Obviously, the above-described embodiments are only part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts should fall within the scope of protection of the present utility model.

It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular forms are also intended to include the plural forms unless the context clearly indicates otherwise. Furthermore, it will be understood that when the terms "comprises" and/or "includes" are used in this specification, they indicate There are features, steps, work, means, components and/or combinations thereof.

The above descriptions are only preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and changes. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (10)

1. An insulating box for energy storage batteries, which is characterized in that it includes: The shell (10) includes an inner shell (11) and an outer shell (12) arranged around the inner shell (11). The inner shell (11) encloses an installation cavity (20) for installing energy storage batteries. , there is a first vacuum chamber (30) between at least part of the inner shell (11) and at least part of the outer shell (12); Reinforcing structure (40), the reinforcing structure (40) is arranged in the first vacuum chamber (30), one end of the reinforcing structure (40) is connected to the inner shell (11), the reinforcing structure (40) The other end of 40) is connected to the housing (12); and The sealing structure (50) includes a sealing cover (51) that can be detachably and sealingly connected with the housing (10) to seal the installation cavity (20). 2. The thermal insulation box for energy storage batteries according to claim 1, characterized in that the number of the reinforcement structures (40) is multiple, and the plurality of reinforcement structures (40) are along the inner shell (11) circumferential spacing is arranged in the first vacuum chamber (30). 3. The thermal insulation box for energy storage batteries according to claim 1, characterized in that the reinforced structure (40) is provided with a through groove (41) connected to the first vacuum chamber (30); or, The outer shell (12) is sleeved on the outer periphery of the inner shell (11), and the annular first vacuum chamber (30) is formed between the inner shell (11) and the outer shell (12). The first vacuum chamber (30) is filled with inert gas. 4. The thermal insulation box for energy storage batteries according to any one of claims 1 to 3, characterized in that the thermal insulation box for energy storage batteries further includes a support structure (60), and the support structure (60) is provided with Within the mounting cavity (20), the sealing cover (51) is configured to be connectable to the support structure (60). 5. The thermal insulation box for energy storage batteries according to claim 4, characterized in that the number of the support structures (60) is two, and the two support structures (60) are arranged at intervals along the first direction. At both ends of the installation cavity (20), the support structure (60) is provided with a first connection hole (61), and the sealing cover (51) is provided with a second connection hole (52). The connecting hole (61) and the second connecting hole (52) are arranged in one-to-one correspondence. The insulating box for energy storage batteries also includes a locking piece, and the locking piece is inserted through the second connecting hole (52) in turn. 52) and the first connection hole (61) to connect the sealing cover (51) and the support structure (60). 6. The thermal insulation box for energy storage batteries according to claim 4, characterized in that the sealing structure (50) further includes a sealing boss (53), and the sealing boss (53) is provided on the sealing cover. (51) Toward the side of the housing (10), the sealing boss (53) is configured to be inserted into the mounting cavity (20) and contact the top of the support structure (60). 7. The thermal insulation box for energy storage batteries according to claim 4, characterized in that the thermal insulation box for energy storage batteries further includes a plurality of electrode separators (70), and the plurality of electrode separators (70) are along The first direction is spaced apart in the installation cavity (20), and the height of the electrode separator (70) is smaller than the height of the support structure (60). 8. The thermal insulation box for energy storage batteries according to any one of claims 1 to 3, characterized in that the sealing cover (51) has a second vacuum chamber, and the second vacuum chamber is filled with inert gas. . 9. The thermal insulation box for energy storage batteries according to any one of claims 1 to 3, characterized in that the sealing cover (51) is provided with an electrode (80) that can be connected to the energy storage battery. . 10. An energy storage battery, characterized by comprising: Cells (90); and The thermal insulation box for energy storage batteries according to any one of claims 1 to 9, wherein the battery core (90) is installed in the thermal insulation box for energy storage batteries.